Dai, US
Changhong Dai, Willoughby Hills, OH US
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20140107476 | SPATIAL SAMPLING IMPROVEMENT FOR LIST-MODE PET ACQUISITION USING PLANNED TABLE/GANTRY MOVEMENT - A PET apparatus includes a detector array including individual detectors which receive radiation events from an imaging region. A movement controller controls at least one of relative longitudinal movement between a subject support and the detector array and circumferential movement between the detector array and the subject. A time stamp processor assigns a time stamp to each received radiation event. A list mode event storage buffer stores time stamped events. An event verification processor screens for coincidentally received radiation events, locations at which each pair of corresponding coincidentally received events defining a line of response. A reconstruction processor reconstructs valid events into an image representation of the imaging region. | 04-17-2014 |
Congxia Dai, Morgantown, WV US
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20100118940 | ADAPTIVE REFERENCE PICTURE DATA GENERATION FOR INTRA PREDICTION - A device incorporates an H.264 compatible video encoder for providing compressed, or encoded, video data. The H.264 encoder comprises a buffer for storing previously coded macroblocks of a current picture being encoded; and a processor for generating adaptive reference picture data from the previously coded macroblocks of the current picture; wherein the adaptive reference picture data is for use in predicting uncoded macroblocks of the current picture. | 05-13-2010 |
Dai Dai, Carlsbad, CA US
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20130307614 | Method and Apparatus for Improving the Performance of a DAC Switch Array - One of the critical design parameters occurs when a digital signal is converted into an analog signal. As the supply voltage drops to less than 2 times of threshold voltage to reduce leakage and save power, generating a relative large swing with a resistor-ladder DAC becomes more difficult. For a 5 bit DAC, 32 sub-arrays are used to select the appropriate voltage from the series coupled resistor network. Each sub-array uses p-channel transistors where the sub-array extracting the lowest voltage 700 mV only has a 100 mV of gate to source voltage. To compensate for the reduced gate to source voltage, the sub-arrays are partitioned into four groups. In each group, the p-channel width is increased from 2 um to 5 um, as the tap voltage drops from 1.2 V to 0.7 V. This allows the p-channel transistor with a small gate to source voltage to have a larger width thereby improving performance. | 11-21-2013 |
20140062545 | Method and Apparatus for Reducing the Clock Kick-Back of ADC Comparators While Maintaining Transistor Matching Behavior - The core concept of this ADC is the high-speed fully-differential comparators which are clocked at 2.64 GHz and used in a 60 GHz transceiver. The comparator consists of a pre-amplifier stage, a capture stage, a regeneration cell and an output latch. The pre-amplifier stage is not clocked; therefore, the pre-amplifier stage does not suffer initialization and transient behavior effects when the clock signal switches state. The transient response of being enabled and disabled is eliminated. Instead, a capture stage transfers the contents of the pre-amplifier stage into a memory regeneration stage. The capture stage is clocked by pulses that are timed to minimize the clock kick-back generated by the memory regeneration stage. The clock kick-back is reduced even when many comparators are coupled to the PGA. The comparators, instead of having extra dummy fingers, are also aligned right next to each other to minimize the mismatching layout effect. | 03-06-2014 |
20140062621 | Method and Apparatus for an Active Negative-Capacitor Circuit to Cancel the Input Capacitance of Comparators - The differential output of a Programmable Gain Amplifier (PGA) is loaded by the input differential gate capacitance of a plurality of Analog to Digital converters (ADC) comparators and the differential metal layer traces to interconnect these comparators to the PGA. The differential capacitive load presented to the PGA is quite large and reduces the bandwidth of this interconnect between the PGA and ADC. To overcome the performance degradation due to the differential capacitive load, an active negative-capacitor circuit cancels the effect of the large input capacitance of the ADC comparators. This cancellation extends the gain characteristics of the interconnect between the PGA's output and the inputs of the first stage of the comparators. The active negative-capacitance is comprised of a cross pair NMOS with a capacitor connecting their sources where each NMOS is biased by a current source. | 03-06-2014 |
David Dai, Novi, MI US
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20120098715 | WIDEBAND ANTENNA - A vehicle window assembly. The window assembly includes a frame having an inner metal edge and a window pane fixed to the frame. The window pane includes an inner glass ply, an outer glass ply, an interlayer between the inner glass ply and the outer glass ply, and an electro-conductive coating located on a surface of the outer glass ply, wherein the electro-conductive coating has an outer peripheral edge spaced from the inner metal edge of the frame to define an antenna slot. The window assembly also includes an antenna feed structure electrically connected to the outer peripheral edge of the electro-conductive coating and a capacitive coupling strip located on the inner glass ply and overlapping the outer peripheral edge of the electro-conductive coating proximate the antenna feed structure, wherein the coupling strip couples a wide bandwidth radio frequency signal into and out of the antenna slot. | 04-26-2012 |
20120098716 | WINDOW ANTENNA - A vehicle window assembly. The window assembly includes a glass ply and an electro-conductive coating located on a surface of the glass ply. The electro-conductive coating has an outer peripheral edge that is adapted to be spaced from an inner metal edge of a vehicle frame so as to define an antenna slot. The electro-conductive coating includes at least one deleted portion adjacent the outer peripheral edge, wherein the deleted portion is sized to tune the antenna slot to a desired resonant frequency. | 04-26-2012 |
David Z. Dai, Austin, TX US
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20090210872 | METHOD TO ENHANCE THE SCALABILITY OF NETWORK CACHING CAPABILITY IN VIRTUALIZED ENVIRONMENT - A mechanism is provided to enhance the scalability of network caching capabilities. All network client applications running on a partition in a virtualized environment are configured to query information from a single virtual input/output server (VIOS) network caching daemon. Thus, the illustrative embodiments provide a 1:n model where a VIOS partition has a network caching daemon, and each of the n partitions uses the network caching daemon of the VIOS partition. The mechanism of the illustrative embodiments only requires the system administrator to control one copy of the local files on the VIOS server. The system administrator does not need to monitor all of these local files on each individual partition. The system administrator consolidates the entries used by the different individual partitions into one single file on the VIOS server side. | 08-20-2009 |
Donglai Dai, Eau Claire, WI US
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20090259696 | Node Synchronization for Multi-Processor Computer Systems - A method and apparatus for controlling access by a set of accessing nodes to memory of a home node (in a multimode computer system) determines that each node in the set of nodes has accessed the memory, and forwards a completion message to each node in the set of nodes after it is determined that each node has accessed the memory. The completion message has data indicating that each node in the set of nodes has accessed the memory of the home node. | 10-15-2009 |
20130212339 | Data Coherence Method and Apparatus for Multi-Node Computer System - A method for maintaining data coherency in a shared-memory computer system having a plurality of nodes divides the local memory of a given node into one or more blocks and stores a data record for each block indicating a plurality of node groups and a selection of the node groups. Each selected node group represents a number of nodes, and selected node groups represent at least one node that has requested access to the block. In response to receiving an access request from a requesting node that may or may not be in a selected node group, the method and system update the data record to indicate the correct selection. If the requesting node is not in any node group, the data record is adjusted to have new node groups, one of which represents the requesting node. | 08-15-2013 |
Dzung G. Dai, Maple Grove, MN US
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20100048754 | VISCOELASTIC POLYURETHANE FOAMS COMPRISING OLIGOMERIC NATURAL OIL POLYOLS - Described are viscoelastic polyurethane foams that comprise an oligomeric natural oil polyol and a petroleum-derived polyol. The viscoelastic foams are formed by reacting a polyisocyanate with an active-hydrogen composition that comprises the oligomeric natural oil polyol and petroleum-derived polyol. | 02-25-2010 |
20100087561 | VISCOELASTIC POLYURETHANE FOAMS COMPRISING AMIDATED OR TRANSESTERIFIED OLIGOMERIC NATURAL OIL POLYOLS - Described are viscoelastic polyurethane foams that comprise the reaction product of a polyisocyanate and an active-hydrogen composition comprising an amidated or transesterified oligomeric natural oil polyol. | 04-08-2010 |
Fa Foster Dai, Aubum, AL US
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20100283653 | VERNIER RING TIME-TO-DIGITAL CONVERTERS WITH COMPARATOR MATRIX - A time to digital converter (TDC) is able to be utilized for measuring a time interval between two signals with a very fine time resolution, which is defined as the difference in propagation delay per stage between two rings or chains of delay stages. The Vernier ring TDC, Vernier TDC with comparator matrix or Vernier ring TDCs with comparator matrix comprise two rings or chains of delay stages with slightly different propagation delays per stage and a plurality of comparators for comparing two signals propagation along two rings or chains and determining when the lag signal passes the lead signal. The lead and lag signal are initiated by two events and are each fed into a separate one the first stages of one of the specified rings or chains. The comparators are able to be organized in a comparator matrix in order to occupy less space and permit reuse. As a result, the input time interval (the time between the two initiating events) is able to be measured through the product of the time resolution and the number of stages through which the two signals propagated. | 11-11-2010 |
Fangyong Dai, Tomball, TX US
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20120032684 | ACTIVE PIN CONNECTION MONITORING SYSTEM AND METHOD - A system for monitoring a connection to an active pin of an integrated circuit (IC) die, includes an input/output (I/O) cell of an IC die, where the I/O cell is bonded to a bonding pad on a ball grid array (BGA) substrate. The system includes a test point on a printed circuit board (PCB) coupled to the bonding pad which forms an electrical/conductive pathway between the test point and the I/O cell. The system includes a clock waveform injected through a resistor into the test point. | 02-09-2012 |
20120131256 | I/O CONTROL SYSTEMS AND METHODS - An input/output (“I/O”) port control system is provided. The system can include an I/O controller ( | 05-24-2012 |
20130187731 | MODULAR INTERFACE SYSTEMS AND METHODS - Interface systems and methods are provided. An interface system can include a first isolator ( | 07-25-2013 |
George M. Dai US
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20120026460 | COMPOUND MODULATION TRANSFER FUNCTION FOR LASER SURGERY AND OTHER OPTICAL APPLICATIONS - Methods, devices, and systems establish an optical surface shape that mitigates or treats a vision condition in a patient. An optical surface shape for a particular patient can be determined using a set of patient parameters for the specific patient by using a compound modulation transfer function (CMTF). The compound modulation transfer function can include a combination of modulation transfer functions (MTF's) at a plurality of distinct frequencies. | 02-02-2012 |
Guangxiu Dai, Baton Rouge, LA US
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20100298306 | (1,4-Diaza-bicyclo[3.2.2]non-6-en-4-yl)-heterocyclyl-methanone Ligands for Nicotinic Acetylcholine Receptors, Useful for the Treatment of Disease - The present invention relates generally to the field of ligands for nicotinic acetylcholine receptors (nACh receptors), activation of nACh receptors, and the treatment of disease conditions associated with defective or malfunctioning nicotinic acetylcholine receptors, especially of the brain. Further, this invention relates to novel compounds, which act as ligands for the α7 nACh receptor subtype, methods of preparing such compounds, compositions containing such compounds, and methods of use thereof. The novel compounds include compounds of formula I: | 11-25-2010 |
Heping Dai, Plano, TX US
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20130147543 | Apparatus and Method for Fractional Charge Pumps - An embodiment apparatus comprises a plurality of flying capacitors coupled between a dc input power source and an output capacitor and switching circuitry coupled to the plurality of flying capacitors. The switching circuitry is configured such that in a first operational phase, the dc input power source and the plurality of flying capacitors in a first capacitor configuration are stacked together and further coupled to the output capacitor and in a second operational phase, the plurality of flying capacitors in a second capacitor configuration are coupled between ground and the output capacitor. | 06-13-2013 |
20130234785 | Apparatus and Method for Feedforward Controlled Charge Pumps - An embodiment apparatus comprises a switched capacitor network coupled between an input voltage and an output capacitor and a feedforward controller. The switched capacitor network comprises a plurality of flying capacitors and a switching circuit. The feedforward controller comprises a sensor configured to detect the input voltage and a mode selector configured to generate a plurality of gate drive signals for the switched capacitor network. The gate drive signals configure the switched capacitor network to form a charge pump with a non-integer multiplication factor. | 09-12-2013 |
20130265804 | Apparatus for Resonant Converters - A converter comprises a bridge and a resonant tank coupled between the bridge and an isolation transformer. The converter is configured such that the converter operates at a first constant-gain resonant frequency during a normal operation condition wherein a voltage gain of the converter is essentially insensitive to an output load change and the converter operates at a minimum-gain damping frequency during an abnormal operation condition wherein a voltage gain of the converter is approximately equal to zero. | 10-10-2013 |
20140035552 | Apparatus for PWM Gate Drive Circuit - A converter comprises a high side switch, a low side switch connected in series with the high switch, a gate drive circuit comprising a first drive port coupled to a gate of the high side switch, a second drive port coupled to a gate of the low side switch, an SRE input port and | 02-06-2014 |
20140198536 | Resonant Converters and Methods - A multilevel LLC resonant converter comprises a resonant tank connected in series with a primary side of a transformer, a first switch and a second switch connected in series, wherein a common node of the first switch and the second switch is coupled to a mid-voltage point through a first isolation switch and the resonant bank and a third switch and a fourth switch connected in series, wherein a common node of the third switch and the fourth switch is coupled to the resonant tank. | 07-17-2014 |
20140254203 | Resonant Converters - A resonant tank comprises a resonant inductor coupled to a switching network and a transformer, a resonant capacitor coupled to the switching network and the transformer, a first parallel inductor implemented as a magnetizing inductance and a second parallel inductor implement as a separate inductor, wherein a first inductance of the first parallel inductor is greater than a second inductance of the second parallel inductor. | 09-11-2014 |
20140254208 | Auxiliary Resonant Apparatus for LLC Converters - A resonant tank comprises a series resonant inductor coupled to a switching network and a transformer, a series resonant capacitor coupled to the switching network and the transformer, a first parallel inductor implemented as a magnetizing inductance of the transformer, a second parallel inductor implement as a separate inductor, wherein a first inductance of the first parallel inductor is greater than a second inductance of the second parallel inductor and a switch connected in series with the second parallel inductor. | 09-11-2014 |
20140306669 | Apparatus and Method for Power Converters - A method for improving a power converter's efficiency comprises detecting an input voltage of a power converter, determining an operation mode of the power converter based upon the input voltage of the power converter and generating a plurality of gate drive signals based upon a damped gain control, wherein the damped gain control is configured such that an output voltage of the power converter is in a range from a tightly regulated output voltage to an unregulated output voltage. | 10-16-2014 |
20140307482 | Apparatus and Method for Resonant Converters - A method for improving a power converter's efficiency comprises providing a resonant converter, wherein the resonant converter comprises an input coupled to a power source, a plurality of power switches coupled to the input, a resonant tank coupled to the plurality of power switches and a controller coupled to the power switches and generating a plurality of gate drive signals for the power switches, wherein the gate drive signals are arranged such that a switching frequency of the resonant converter is in a frequency band. | 10-16-2014 |
Hongli Dai, Hockessin, DE US
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20080217182 | ELECTROPLATING PROCESS - This invention provides processes for selectively electroplating metal layers into recessed topographic features on the surface of a conductive substrate. The processes are useful for fabricating metal circuit patterns, for example for creating copper interconnects between integrated circuit elements embedded in a thin layer of dielectric material on the surface of a semiconductor wafer. | 09-11-2008 |
Hongping Dai, Chapel Hill, NC US
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20120239306 | APPARATUS AND ASSOCIATED METHOD FOR ANALYZING SMALL MOLECULE COMPONENTS IN A COMPLEX MIXTURE - A method, apparatus, and computer-readable storage medium are provided for analyzing data from a component separation/mass spectrometer (CS-MS), wherein an intensity peak is determined, with an area thereof determined using an integration procedure, in each two-dimensional data set. The intensity peak indicates a sample component, and the area thereof indicates a relative quantity of the sample component. An integration procedure determines the area of selected peaks of a first portion of the two-dimensional data sets associated with a first sample component, and is applied to the intensity peaks of a second portion having the areas thereof not determined by that integration procedure, to adjust the relative quantity of the first sample component in the second portion samples relative to the relative quantity of the first sample component in the first portion samples. The re-integration may also involve determining whether a second sample component is indicated by the intensity peak. | 09-20-2012 |
Hui Dai, Rochester Hills, MI US
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20120003155 | DENDRIMER BASED NANODEVICES FOR THERAPEUTIC AND IMAGING PURPOSES - A nanodevice composition including N-acetyl cysteine linked to a dendrimer, such as a PAMAM dendrimer or a multiarm PEG polymer, is provided. Also provided is a nanodevice for targeted delivery of a compound to a location in need of treatment. The nanodevice includes a PAMAM dendrimer or multiarm PEG polymer, linked to the compound via a disulfide bond. There is provided a nanodevice composition for localizing and delivering therapeutically active agents, the nanodevice includes a PAMAM dendrimer or multiarm PEG polymer and at least one therapeutically active agent attached to the PAMAM dendrimer or multiarm PEG polymer. A method of site-specific delivery of a therapeutically active agent, by attaching a therapeutically active agent to a PAMAM dendrimer or multiarm PEG polymer using a disulfide bond, administering the PAMAM dendrimer or multiarm PEG polymer to a patient in need of treatment, localizing the dendrimer or multiarm PEG polymer to a site in need of treatment, and releasing the therapeutically active agent at the site in need of treatment. | 01-05-2012 |
Jianchun Dai, Houston, TX US
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20080319674 | MULTI-ATTRIBUTE SEISMIC CHARACTERIZATION OF GAS HYDRATES - An appropriate rock physics model is chosen from well-log data and/or experience. The rock physics model is then used to generate a plurality of attribute values, including compression and shear velocities, at different porosities and gas hydrate saturations. Gas hydrates are classified into different ranges of porosity and hydrate saturation based on the population of multiple attributes, and probability density functions for each individual gas hydrate class are created. Probability density distribution functions for individual attributes and a joint conditional probability density functions are created using a Bayesian function. The conditional probability of the occurrences of gas hydrate classes given a set of values of the chosen attributes derived from seismic inversion and or well measurements is inverted. Finally, a maximum a-posteriori (MAP) rule is employed to obtain the optimal porosity and hydrate saturation estimation. This information may be used to make decisions regarding management of the well site and the subsurface hydrate resources. | 12-25-2008 |
20110010143 | TAR ESTIMATION - A method to predict tars and tar sands in petroleum exploration and production in a subsurface volume by building a viscoelastic property model of the volume using rock behavior including tars together with seismic inversion to derive a lithology volume identifying tars. | 01-13-2011 |
20110292767 | DETERMINING A QUANTITY OF A GIVEN MATERIAL IN A SUBTERRANEAN STRUCTURE - A profile is produced based on measured survey data, where the profile contains indications corresponding to refraction events at different depths in a subterranean structure. Based on the profile and a critical angle model that correlates different concentrations of a given material to respective critical angles, a quantity of the given material in a subterranean structure at a particular depth is determined. | 12-01-2011 |
20120059633 | Methods and Devices for Transformation of Collected Data for Improved Visualization Capability - Rock physics guided migration is disclosed to enhance subsurface three-dimensional geologic formation evaluation. In one embodiment, a geologic interpretation is generated based on a seismic data volume. Sets of compaction and acoustic formation factor curves are generated, and these are combined into a set of velocity-relationship curves. A pore pressure is derived and used to establish a pore pressure state. A rock physics template is then generated utilizing the derived information. This rock physics template can be used to refine geologic formation evaluation with any suitable form of migration technique. | 03-08-2012 |
Jianli Dai, Columbia, MD US
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20130338018 | PRIMERS, SEQUENCES AND RECOMBINANT PROBES FOR IDENTIFICATION OF MYCOBACTERIUM SPECIES - The subject invention pertains to an assay and a method for diagnosing, identifying and/or differentiating microorganisms, and in particular bacteria such as | 12-19-2013 |
Jianwei Dai, Storrs Mansfield, CT US
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20090063725 | Direct memory access system - A direct memory access (DMA) system is disclosed herein. The DMA system includes a controller and an interrupt processing unit. The controller is coupled to a first module and a second module for controlling transferring data between the first module and the second module. The data is modulated into a plurality of data blocks. The interrupt processing unit is coupled to the controller for receiving an interrupt from the first module indicative of transferring a data block of the plurality of data blocks, and for generating a drive signal to the controller indicative of transferring the data block of the plurality of data blocks. The plurality of data blocks are transferred between the first module and the second module in sequence according to a parameter value stored in the controller. | 03-05-2009 |
Jin Dai, Carrboro, NC US
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20080260821 | Berry Preparations and Extracts - A method for deriving compositions having antioxidant and anti-inflammatory activity from berries is provided. The method results in a berry extract compositions having stable anthocyanin content. In one aspect, the method comprises exposing a berry to a solvent composition having a pH of from about 1 to about 4.5, and recovering a berry extract having a stabilized anthocyanin content. The berry may be a blackberry. A cryoprotectant may be added, to further stabilize the anthocyanin content. Compositions comprising the berry extract of the present invention, formulated for oral and/or topical administration, are provided also, including nutritional supplements, capsules, enteric-coated capsules, film-coated capsules, tablets, enteric-coated tablets, film-coated tablets, chewing gums, lotions, creams, mucoadhesive gels, vanishing lotions, vanishing creams, and the like. In yet another aspect, the present invention provides methods and compositions for treating inflammation, oxidative damage, or cancer in a mammal. | 10-23-2008 |
Jin Dai, Lexington, KY US
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20110244038 | BERRY PREPARATIONS AND EXTRACTS - Compositions having antioxidant and anti-inflammatory activity, and methods for providing such compositions, are disclosed. In one aspect, the compositions are derived by exposing a berry to an acidic solvent composition, adding a cryoprotectant, and recovering a berry extract having a stabilized anthocyanin content. Compositions comprising the stabilized anthocyanin-containing berry extract, formulated for oral and/or topical administration, are provided also. | 10-06-2011 |
Jinhua Dai, Rolla, MO US
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20090035590 | NON-COVALENTLY CROSSLINKABLE MATERIALS FOR PHOTOLITHOGRAPHY PROCESSES - This invention describes compositions and methods of using non-covalently crosslinked resin coatings for lithographic applications. These materials are designed to undergo, after coating, a change that provides solvent resistance and, with some materials, simultaneous aqueous-base solubility. Non-covalent interactions allow for easier removal of these coatings than of covalently crosslinked materials. These types of materials are well-suited for trench and gap fill applications, as well as for anti-reflective coatings, spin-on carbon layers, and etch masks. | 02-05-2009 |
20130186851 | NONPOLYMERIC ANTIREFLECTION COMPOSITIONS CONTAINING ADAMANTYL GROUPS - Nonpolymeric compounds, compositions, and methods for forming microelectronic structures, and the structures formed therefrom are provided. The nonpolymeric compounds are ring-opened, epoxide-adamantane derivatives that comprise at least two epoxy moieties and at least one adamantyl group, along with at least one chemical modification group, such as a chromophore, bonded to a respective epoxy moiety. Anti-reflective and/or planarization compositions can be formed using these compounds and used in lithographic processes, including fabrication of microelectronic structures. | 07-25-2013 |
20130280656 | PHOTOSENSITIVE, DEVELOPER-SOLUBLE BOTTOM ANTI-REFLECTIVE COATING MATERIAL - Photosensitive, developer-soluble bottom anti-reflective coatings are described. Compositions and methods of forming the same are also disclosed along with resulting microelectronic structures. The anti-reflective compositions comprise a multi-functional epoxy compound having multiple epoxy moieties pendant therefrom and one or more crosslinkable chromophores bonded thereto. The compounds are dispersed or dissolved in a solvent system with a vinyl ether crosslinker and can be used to create crosslinkable and de-crosslinkable coatings for microelectronics fabrication. | 10-24-2013 |
Jinxiang Dai, Storrs, CT US
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20090290287 | ASYMMETRIC ELECTROCHEMICAL SUPERCAPACITOR AND METHOD OF MANUFACTURE THEREOF - The disclosure relates to asymmetric supercapacitors containing: a positive electrode comprising a current collector and a first active material selected from a layered double hydroxide of formula [M | 11-26-2009 |
Jinxiang Dai, Mansfield Storrs, CT US
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20110200864 | STABLE ELECTROLYTES FOR HIGH VOLTAGE BATTERIES AND THE BATTERIES DERIVED THEREFROM - An electrolyte composition comprises lithium salts. The electrolyte composition is operative at temperatures of about 350 to about 600° C. in a battery. The electrolyte composition displays a specific conductivity of less than 10 | 08-18-2011 |
Kevin H. Dai, Charlotte, NC US
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20130218109 | MULTI-ORIENTATION CANISTER FOR USE WITH A REDUCED PRESSURE TREATMENT SYSTEM - Systems and methods for reduced pressure tissue treatments, including a multi-orientation canister. The canister includes an inlet for receiving fluids from a tissue site, and a main chamber in fluid communication with the inlet for receiving fluids from the inlet. The canister includes a filter chamber separated from the main chamber by one or more filter chamber walls. The one or more filter chamber walls includes a primary hole having a first diameter and a secondary hole having a second diameter smaller than the first diameter. The primary hole provides a first path of fluid communication between the filter chamber and the main chamber. The canister includes an outlet for providing fluid communication between the filter chamber and a reduced pressure source. | 08-22-2013 |
20140303577 | MULTI-ORIENTATION CANISTER FOR USE WITH A REDUCED PRESSURE TREATMENT SYSTEM - Systems and methods for reduced pressure tissue treatments, including a multi-orientation canister. The canister includes an inlet for receiving fluids from a tissue site, and a main chamber in fluid communication with the inlet for receiving fluids from the inlet. The canister includes a filter chamber separated from the main chamber by one or more filter chamber walls. The one or more filter chamber walls includes a primary hole having a first diameter and a secondary hole having a second diameter smaller than the first diameter. The primary hole provides a first path of fluid communication between the filter chamber and the main chamber. The canister includes an outlet for providing fluid communication between the filter chamber and a reduced pressure source. | 10-09-2014 |
Lillian Lei Dai, Rockville, MD US
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20120182935 | SYSTEM AND METHOD FOR PACKET DISTRIBUTION IN A VEHICULAR NETWORK ENVIRONMENT - A method is provided in one example embodiment that includes receiving a request for data from a source device, such as an on-board unit of vehicle or a mobile device coupled to an on-board unit, over a vehicular network. Location data, such as GPS coordinates, speed, and heading associated with the source device may also be received. A travel path for the source device can be predicted based on the location data, and an access point to the network can be located within range of the travel path. Packets associated with the requested data may be sent to the access point and then forwarded to the source device when the source device is in range. | 07-19-2012 |
20130301584 | SYSTEM AND METHOD FOR ENABLING A VEHICULAR ACCESS NETWORK IN A VEHICULAR ENVIRONMENT - A method includes joining a vehicular access network (VAN) comprising cooperative communication between a plurality of on-board units (OBU) in respective vehicles, scanning the VAN to pick up a coverage of at least one infrastructure access point (IAP), which operates on a control channel in a radio access tree (RAT) comprising a plurality of cells, listening to a channel allocation information from the IAP that includes a request for a mobile cell gateway (MCG) at a nominal location in the RAT, and sending a candidacy message to the at least one IAP to become an MCG. Certain embodiments include establishing the VAN in a highway, and in urban areas, aggregating traffic in a cell and transmitting to the IAP via the MCG, and other features. | 11-14-2013 |
20140215491 | SYSTEM AND METHOD FOR INTERNAL NETWORKING, DATA OPTIMIZATION AND DYNAMIC FREQUENCY SELECTION IN A VEHICULAR ENVIRONMENT - A system includes an on-board unit (OBU) in communication with an internal subsystem in a vehicle on at least one Ethernet network and a node on a wireless network. A method in one embodiment includes receiving a message on the Ethernet network in the vehicle, encapsulating the message to facilitate translation to Ethernet protocol if the message is not in Ethernet protocol, and transmitting the message in Ethernet protocol to its destination. Certain embodiments include optimizing data transmission over the wireless network using redundancy caches, dictionaries, object contexts databases, speech templates and protocol header templates, and cross layer optimization of data flow from a receiver to a sender over a TCP connection. Certain embodiments also include dynamically identifying and selecting an operating frequency with least interference for data transmission over the wireless network. | 07-31-2014 |
20140303807 | SYSTEM AND METHOD FOR REAL-TIME SYNTHESIS AND PERFORMANCE ENHANCEMENT OF AUDIO/VIDEO DATA, NOISE CANCELLATION, AND GESTURE BASED USER INTERFACES IN A VEHICULAR ENVIRONMENT - A method includes establishing communication channels between an on-board unit (OBU) of a vehicle and a plurality of nodes, tagging each of a plurality of data from the plurality of nodes with a priority level, storing the plurality of data in a priority queue according to respective priority levels, selecting a medium to present a first data of the plurality of data to a user, and presenting the first data to the user via the medium. In the method, the plurality of nodes includes a remote node and an in-vehicle device. Another method includes receiving a data from a remote node, generating a plurality of data streams from the data and transmitting the plurality of data streams across a plurality of wireless interfaces. Another method includes enhancing audio signals from a plurality of microphones and speakers. Yet another method includes various gesture based user interfaces coupled to the OBU. | 10-09-2014 |
20140380442 | SYSTEM AND METHOD FOR ENABLING SECURE TRANSACTIONS USING FLEXIBLE IDENTITY MANAGEMENT IN A VEHICULAR ENVIRONMENT - A method in one embodiment includes authenticating a first agent to an on board unit (OBU) of a vehicle if the first agent validates a first set of one or more authentication requirements and identifying a first identity profile corresponding to the first agent. The method also includes determining a role of the first agent in the vehicle and configuring the vehicle with the first identity profile, where the vehicle is configured based, at least in part, on the role of the first agent. In this embodiment, the first identity profile is one of a plurality of identity profiles provisioned on the OBU. In specific embodiments, each one of a plurality of agents corresponds to a respective one of the plurality of identity profiles, and includes one or more of a human agent, a machine device, a software agent, an authorized entity, and a mobile device. | 12-25-2014 |
20150029987 | SYSTEM AND METHOD FOR WIRELESS INTERFACE SELECTION AND FOR COMMUNICATION AND ACCESS CONTROL OF SUBSYSTEMS, DEVICES, AND DATA IN A VEHICULAR ENVIRONMENT - A method in one embodiment includes intercepting a message in an on-board unit (OBU) of a vehicular network environment between a source and a receiver in the vehicular network environment, verifying the message is sent from the source, verifying the message is not altered, evaluating a set of source flow control policies associated with the source, and blocking the message if the set of source flow control policies indicate the message is not permitted. In specific embodiments, the message is not permitted if a level of access assigned to the source in the set of source flow control policies does not match a level of access tagged on the message. In further embodiments, the method includes evaluating a set of receiver flow control policies associated with the receiver, and blocking the message if the set of receiver flow control policies indicates the message is not permitted. | 01-29-2015 |
Lily Z. Dai, Deerwood, MD US
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20110223163 | MONOCLONAL ANTIBODIES THAT REACT WITH THE CAPSULE OF BACILLUS ANTHRACIS - The present disclosure relates to monoclonal antibodies that bind poly-γ-D-glutamic acid (γDPGA), which is present on the surface of | 09-15-2011 |
Liming Dai, Beavercreek, OH US
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20080318026 | METHOD OF MODIFYING CARBON NANOMATERIALS, COMPOSITES INCORPORATING MODIFIED CARBON NANOMATERIALS AND METHOD OF PRODUCING THE COMPOSITES - A polymer-carbon nanomaterial composite. The composite includes a polymer matrix; and plasma-modified carbon nanomaterials having surface functional groups attached thereto, wherein the carbon nanomaterial is selected from carbon nanotubes, carbon nanofibers, carbon nanoparticles, carbon black, nanodiamond, fullerenes, or combinations thereof. The invention also involves a method of making a polymer-carbon nanomaterial composite, and a method of modifying carbon nanomaterials. | 12-25-2008 |
20090011232 | ALIGNED CARBON NANOTUBES FOR DRY ADHESIVES AND METHODS FOR PRODUCING SAME - A nanocomposite dry adhesive. The nanocomposite dry adhesive includes a substrate; and an array of vertically aligned single-walled carbon nanotubes or vertically aligned multi-walled carbon nanotubes on the substrate, wherein the nanocomposite dry adhesive utilizes the array of single-walled carbon nanotubes or multi-walled carbon nanotubes as synthesized, the as synthesized single-walled carbon nanotubes being substantially free of randomly entangled nanotube segments on top of the vertically aligned single-walled carbon nanotubes, the as synthesized multi-walled carbon nanotubes having randomly entangled nanotube segments on top of the vertically aligned multi-walled carbon nanotubes; wherein the dry adhesive has a normal adhesion strength of at least about 5 N·cm | 01-08-2009 |
20100183950 | METAL-FREE VERTICALLY-ALIGNED NITROGEN-DOPED CARBON NANOTUBE CATALYST FOR FUEL CELL CATHODES - Metal-free fuel cell cathodes having a catalytic layer of vertically-aligned, nitrogen-doped carbon nanotubes (VA-NCNTs) are provided. The fuel cell cathodes comprise a cathode body, a binder layer attached to an outer surface of the cathode body, and the catalytic layer, which is supported by the binder layer. The binder layer may comprise a composite of a conductive polymer and doped or undoped nonaligned carbon nanotubes. In a method for forming the fuel cell cathodes, the VA-NCNTs may be formed by pyrolysis of a metalorganic compound and integration of the nanotubes with nitrogen. The binder layer is applied, and the resulting supported nanotube array may be attached to the cathode body. Fuel cells comprising the fuel cell cathodes are provided. The fuel cell cathodes comprising VA-NCNTs demonstrate superior oxygen-reduction reaction performance, including for electrocatalytic activity, operational stability, tolerance to crossover effects, and resistance to CO poisoning. | 07-22-2010 |
20110024717 | METHOD FOR PREFERENTIAL GROWTH OF SEMICONDUCTING VERTICALLY ALIGNED SINGLE WALLED CARBON NANOTUBES - A method and system for the preferential growth of semiconducting vertically-aligned single-walled carbon nanotubes (VA-SWNTs) is provided. The method combines the use of plasma-enhanced chemical vapor deposition at low pressure with rapid heating. The method provides a high yield of up to approximately 96% semiconducting SWNTs in the VA-SWNT array. The as-synthesized semiconducting SWNTs can be used directly for fabricating field effect transistor (FET) devices without the need for any post-synthesis purification or separation. | 02-03-2011 |
20120037306 | POLYMER-CARBON NANOTUBE COMPOSITE FOR USE AS A SENSOR - A polymer-carbon nanotube composite film is provided for use as a sensor for detecting chemical vapors. The composite film is formed by coating perpendicularly-aligned carbon nanotubes with a polymer selected from poly(vinyl acetate), poly(isoprene), or blends thereof. The sensor may be formed by attaching at least two electrodes to the polymer-carbon nanotube composite film. The sensor may be used in any applications where the sensor is capable of detecting a change in conductivity in the composite. | 02-16-2012 |
Liming Dai, Hudson, OH US
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20090010822 | APPARATUS FOR THE PRODUCTION OF CARBON NANOTUBES - A reactor for preparing carbon nanotubes comprising a reaction chamber, at least one support means located within said reaction chamber capable of supporting a substrate, said substrate being capable of supporting carbon nanotube growth, at least one heating element located within said reaction chamber capable of providing localized heating to said substrate within said reaction chamber, and means for passing a gaseous carbonaceous material into said reaction chamber such that is passes over the contacts said substrate. | 01-08-2009 |
Liming Dai, Solon, OH US
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20140050995 | METAL-FREE OXYGEN REDUCTION ELECTROCATALYSTS - An electrocatalyst material comprising a functionalized catalytic substrate, the catalytic substrate comprising an electron-accepting material adsorbed thereto. In one embodiment, the catalytic substrate comprises carbon nanotubes or graphene sheets having a nitrogen-containing or nitrogen-free polyelectrolyte, e.g., poly(diallyldimethylammonium chloride) (PDDA), adsorbed thereto. The electrocatalyst material exhibits excellent catalytic activity, as well as broad fuel selectivity, resistance to poisoning effects, and durability. The electrocatalyst can be used as part of an electrode structure, e.g., a cathode, that can be used in a wide range of electrochemical devices. | 02-20-2014 |
Liwel Dai, Catonsville, MD US
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20080243777 | SYSTEMS AND METHODS FOR RESULTS LIST NAVIGATION USING SEMANTIC COMPONENTIAL-GRADIENT PROCESSING TECHNIQUES - Systems ana methods are provided for organizing and presenting large search results lists using lexical semantic componential-gradient processing techniques to dynamically organize search results into a gradable list of context rich semantic components, which is presented to a user under a gradient as a constrained set of choices to thereby facilitate user navigation of the search results. | 10-02-2008 |
Minjie Dai, San Jose, CA US
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20130044586 | FASTER FAILOVERS FOR FAST REROUTE (FRR) LSPs - Techniques for reducing the latency in performing a failover from a protected connection to its backup connection when a network event is detected affecting the protected connection. In an MPLS network, techniques are provided for failing a protected LSP to a backup LSP in a fast and efficient manner. In one embodiment, the faster failover is facilitated by storing protected LSPs and their backup LSPs information in the data plane, such as locally on a linecard. | 02-21-2013 |
Qi Dai, Stamford, CT US
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20080257827 | USE OF SILICON-CONTAINING POLYMERS TO IMPROVE RED MUD FLOCCULATION IN THE BAYER PROCESS - The suspended solids content of a Bayer process stream is reduced by contacting the stream with silicon-containing polymers. | 10-23-2008 |
20100098607 | USE OF SILICON-CONTAINING POLYMERS FOR IMPROVED FLOCCULATION OF SOLIDS IN PROCESSES FOR THE PRODUCTION OF ALUMINA FROM BAUXITE - The suspended solids content of a process stream in a process for digesting bauxite ore to produce alumina is reduced by contacting the stream with silicon-containing polymers. | 04-22-2010 |
20120103916 | USE OF SILICON-CONTAINING POLYMERS FOR IMPROVED FLOCCULATION OF SOLIDS IN PROCESSES FOR THE PRODUCTION OF ALUMINA FROM BAUXITE - The suspended solids content of a process stream in a process for digesting bauxite ore to produce alumina is reduced by contacting the stream with silicon-containing polymers. | 05-03-2012 |
20120125862 | USE OF SILICON-CONTAINING POLYMERS TO IMPROVE RED MUD FLOCCULATION IN THE BAYER PROCESS - The suspended solids content of a Bayer process stream is reduced by contacting the stream with silicon-containing polymers. | 05-24-2012 |
Qilin Dai, Richmond, VA US
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20130211106 | PRODUCTION OF GRAPHENE AND NANOPARTICLE CATALYSTS SUPPORTED ON GRAPHENE USING MICROWAVE RADIATION - Microwave irradiation is used to synthesize graphene and metallic nanocatalysts supported on graphene either by solid or solution phase. In solid phase methods, no solvents or additional reducing agents are required so the methods are “environmentally friendly” and economical, and the graphene and nanocatalysts are substantially free of residual contaminants. Recyclable, high efficiency Pd nanocatylysts are prepared by these methods. | 08-15-2013 |
20150087498 | Production of Graphene and Nanoparticle Catalysts Supported on Graphene Using Microwave Radiation - Microwave irradiation is used to synthesize graphene and metallic nanocatalysts supported on graphene either by solid or solution phase. In solid phase methods, no solvents or additional reducing agents are required so the methods are “environmentally friendly” and economical, and the graphene and nanocatalysts are substantially free of residual contaminants. Recyclable, high efficiency Pd nanocatalysts are prepared by these methods. | 03-26-2015 |
Qing Dai, Auburn, AL US
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20120314198 | METHODS OF ESTIMATING POINT SPREAD FUNCTIONS IN ELECTRON-BEAM LITHOGRAPHY PROCESSES - In a method of estimating a PSF in the electron-beam lithography process, a linear resist test pattern may be formed on a substrate. A line response function (LRF) may be determined using a cross-sectional profile of the linear resist test pattern. A development rate distribution in a first direction, the first direction may be substantially perpendicular to an extending direction of the linear resist test pattern, may be calculated using the LRF. A line spread function (LSF), which may represent an exposure distribution in the first direction, may be calculated using the development rate distribution. The PSF may be estimated using the LSF. | 12-13-2012 |
Qingyuan Dai, Germantown, MD US
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20090207954 | MIMO SLOTTED ALOHA (MSA) SYSTEM - A method including receiving at a synchronizing node a first reference frame from a first reference node at a first time and storing a first time value representing the first time, and calculating a timing estimator by subtracting a minimum time value, representing the distance from the synchronizing node to the first reference node, from the first time value. The method includes receiving at the synchronizing node a second reference frame at a second time and transmitting from the synchronizing node to the first reference node a short timing contention time frame. The method includes receiving at the synchronizing node from the first reference node an arrival time value representing the time at which the first reference node received the short timing contention frame and calculating a time drift from the first arrival time value and the second time value and adjusting the timing estimator based on the time drift. | 08-20-2009 |
20100290554 | Single Carrier Waveform System with Frequency Domain Equalization - A communications system includes one or more antennas and a receiver coupled to the one or more antennas. The one or more antennas are operable to receive a signal transmitted from a transmitter. The receiver includes a combiner that is operable to combine the signals received by the one or more antennas into a combined signal. The signal received by the receiver is a single-carrier waveform comprising a signal field and one or more data fields after the signal field. The signal field indicates a modulation technique of the one or more data fields. The one or more data fields include a first short unique word, a data payload after the second short unique word, and a second short unique word after the data payload. | 11-18-2010 |
20140016626 | MIMO SLOTTED ALOHA (MSA) SYSTEM - A method including receiving at a synchronizing node a first reference frame from a first reference node at a first time and storing a first time value representing the first time, and calculating a timing estimator by subtracting a minimum time value, representing the distance from the synchronizing node to the first reference node, from the first time value. The method includes receiving at the synchronizing node a second reference frame at a second time and transmitting from the synchronizing node to the first reference node a short tuning contention time frame. The method includes receiving at the synchronizing node from the first reference node an arrival time value representing the time at which the first reference node received the short timing contention frame and calculating a time drift from the first arrival time value and the second time value and adjusting the timing estimator based on the time drift. | 01-16-2014 |
Qiu Dai, Orlando, FL US
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20120058548 | DETECTION OF BIOTARGETS USING BIORECEPTOR FUNCTIONALIZED NANOPARTICLES - A system for determining a presence of biomolecule targets includes a vessel holding a sample solution suspected of containing the biomolecule targets and a plurality of probes including bioreceptor functionalized metal nanoparticles including a plurality of metal atoms. The biomolecule targets when present in the sample solution bind to the plurality of probes. A separation device is for separating the plurality of probes into a first group of probes having the biomolecule targets bound thereto and a second group of probes not having the biomolecule targets bound thereto. A reagent is introduced via a port for breaking down the metal nanoparticles in the first group or second group of probes, wherein at least one signal moiety solution is formed. A device measures a parameter of the signal moiety solution. | 03-08-2012 |
Qiu Dai, Dayton, OH US
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20130281623 | AQUEOUS SOLUBLE FERRIMAGNETS STABILIZED BY BLOCK COPOLYMERS - The present invention relates to a water-soluble polymer complex that includes a water-soluble block copolymer and a magnetic nanoparticle, wherein the water-soluble polymer complex has a nonzero net magnetic moment in the absence of an applied magnetic field at ambient temperatures. The water-soluble block copolymer is preferably a diblock or triblock copolymer and the magnetic nanoparticle is preferably a ferrimagnetic or ferromagnetic nanoparticle. The water-soluble complexes may be derivatized with reactive groups and conjugated to biomolecules. Exemplary water-soluble polymer complexes covered under the scope of the invention include PEG | 10-24-2013 |
Qizhou Dai, Dover, DE US
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20110315928 | LOW STRESS FLOWABLE DENTAL COMPOSITION - Disclosed herein are low viscosity and low stress dental compositions comprising at least one low stress polymerizable resin and at least one filler. The dental compositions described herein have high depth of cure and self-leveling characteristics and are capable of bulk application. | 12-29-2011 |
20120285258 | METHOD AND APPARATUS FOR VISUALIZING CONTRACTION STRESS FROM CURABLE MATERIALS - Disclosed herein is an apparatus and a method to use such an apparatus for visualizing the contraction stress from curable materials. Particularly, a simple test device has been designed and fabricated and a method of using such a device, which allows a user to easily distinguish the curable materials that can generate contraction stress in different magnitudes. More specifically, the present disclosure provides a simple and effective way to make the complicated contraction stress due to polymerization (curing or setting) visualizable and audible. | 11-15-2012 |
Shaoan Dai, San Jose, CA US
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20130023226 | IMAGE CANCELLATION IN RECEIVERS USING DUAL ADAPTIVE FILTERS - The present disclosure includes apparatus, systems, and techniques relating to receiver image cancellation. A described technique includes receiving a downconverted signal in a digital domain, the downconverted signal including an in-phase signal and a quadrature signal; generating a first signal of a signal channel based on the downconverted signal; generating a second signal of an image channel based on the downconverted signal; filtering the second signal using first weights to produce a pilot training signal; filtering the second signal using second weights to produce an image cancellation signal; generating an output signal by subtracting the image cancellation signal from the first signal to resolve the desired signal; updating the first weights based on the first weights, the second signal, the pilot training signal, and a pilot signal; and updating the second weights based on the second weights, the output signal, and the pilot training signal. | 01-24-2013 |
Shaolong Dai, Houston, TX US
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20120084110 | SYSTEM AND METHOD FOR SMART OIL, GAS AND CHEMICAL PROCESS SCHEDULING - A system and method support smart scheduling for an oil, gas and chemical process system with a plurality of facility units. A subset of the process facility units can be selected from the plurality of process facility units. A partial scheduling calculation can be performed on the selected subset of process facility units, independently from the rest of the chemical process facility units. A schedule can be calculated for the subset of chemical process facility units, based on the partial scheduling calculation. | 04-05-2012 |
Song-Ping Dai, Ennis, TX US
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20090218030 | FLOORING UNDERLAYMENT MEMBRANE - Disclosed herein is a flooring underlayment membrane, and associated methods of manufacturing and installing such a membrane, comprising upper and lower nonwoven fiber layers. In one embodiment, the flooring underlayment membrane constructed as disclosed herein may comprise a first nonwoven fiber material, and a second nonwoven fiber material and at least one layer of extrudable thermoplastic resin disposed between and bonding the first and second nonwoven fiber materials. | 09-03-2009 |
Steve Dai, Gilbert, AZ US
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20090191334 | FORMING AN ELECTROWETTING MODULE HAVING A HYDROPHILIC GRID - A method of forming a matrix of electrowetting pixels includes forming a patterned layer of electrodes ( | 07-30-2009 |
Steve X. Dai, Gilbert, AZ US
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20080236632 | SMUDGE REMOVAL FROM ELECTRONIC DEVICE DISPLAYS - An apparatus and method is provided for removing smudges ( | 10-02-2008 |
20120149437 | PORTABLE ELECTRONIC DEVICE - A portable electronic device includes a free floating display lens having a stiffener ring mounted on a peripheral region or edge of the free floating display lens to affect modal density and modal distribution of the free floating display lens. Additionally, a piezoelectric supporting structure is attached to the stiffener ring, while surrounding a display, wherein the piezoelectric supporting structure is electrically driven to produce an acoustic signal in one mode and a vibratory haptic signal in another mode. | 06-14-2012 |
Vito Dai, Santa Clara, CA US
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20130086542 | METHOD AND APPARATUS FOR PATTERN ADJUSTED TIMING VIA PATTERN MATCHING - An approach is provided for pattern adjusted timing via pattern matching. Embodiments include receiving data corresponding to a problematic layout pattern associated with at least one performance characteristic and data corresponding to an integrated circuit layout design, scanning the integrated circuit layout design for the problematic layout pattern, identifying at least one portion of the integrated circuit layout design substantially matching the problematic layout pattern, and modifying a netlist associated with the integrated circuit layout design, the modification being based on the at least one performance characteristic. | 04-04-2013 |
20130219347 | METHODS FOR DECOMPOSING CIRCUIT DESIGN LAYOUTS AND FOR FABRICATING SEMICONDUCTOR DEVICES USING DECOMPOSED PATTERNS - Methods for fabricating semiconductor devices are provided. In an embodiment, a method of fabricating a semiconductor device includes scanning a circuit design layout and proposing patterns for decomposed layouts. The proposed patterns are then compared with a library of prior patterns including a category of forbidden patterns and a category of preferred patterns. If a selected proposed pattern matches a forbidden pattern, the selected proposed pattern is eliminated. If the selected proposed pattern matches a preferred pattern, then the selected proposed pattern is identified for use in the decomposed layouts. Decomposed layouts are generated from the identified patterns. A plurality of masks is fabricated based on the decomposed layouts. Then a multiple patterning lithographic technique is performed with the plurality of masks on a semiconductor substrate. | 08-22-2013 |
20140215415 | AUTOMATED DESIGN LAYOUT PATTERN CORRECTION BASED ON CONTEXT-AWARE PATTERNS - A process and apparatus are provided for automated pattern-based semiconductor design layout correction. Embodiments include scanning a drawn semiconductor design layout to determine a difficult-to-manufacture pattern within the drawn semiconductor design layout based on a match with a pre-characterized difficult-to-manufacture pattern, determining a corrected pattern based on a pre-determined correlation between the corrected pattern and the pre-characterized difficult-to-manufacture pattern, and replacing the difficult-to-manufacture pattern with the corrected pattern within the drawn semiconductor design layout. | 07-31-2014 |
20140245238 | METHODS INVOLVING PATTERN MATCHING TO IDENTIFY AND RESOLVE POTENTIAL NON-DOUBLE-PATTERNING-COMPLIANT PATTERNS IN DOUBLE PATTERNING APPLICATIONS - One illustrative method disclosed herein involves producing an initial circuit layout, prior to decomposing the initial circuit layout, identifying at least one potential non-double-patterning-compliant (NDPC) pattern in the initial circuit layout, fixing the at least one potential non-double-patterning-compliant (NDPC) pattern so as to produce a double-patterning-compliant (DPT) pattern, producing a modified circuit layout by removing the potential non-double-patterning-compliant (NDPC) pattern and adding the double-patterning-compliant (DPT) pattern to the initial circuit layout, and performing design rule checking and double patterning compliance checking on the modified circuit layout. | 08-28-2014 |
20140264461 | METAL LAYER ENABLING DIRECTED SELF-ASSEMBLY SEMICONDUCTOR LAYOUT DESIGNS - Methods for forming a DSA pre-patterned semiconductor transistor layout and the resulting devices are disclosed. Embodiments may include forming a pre-patterned transistor layout by directed self-assembly (DSA), forming a metal layer over the DSA pre-patterned transistor layout, including: forming a plurality of horizontal metal lines; and forming a plurality of vertical metal segments discontinuous from and between adjacent horizontal metal lines; and forming one or more bridging dots each connecting one of the plurality of horizontal metal lines to one of the plurality of vertical metal segments, wherein locations of the bridging dots determine logic functions of resulting transistor cells. | 09-18-2014 |
20140282288 | DESIGN-FOR-MANUFACTURING - DESIGN-ENABLED-MANUFACTURING (DFM-DEM) PROACTIVE INTEGRATED MANUFACTURING FLOW - System and methods for design-for-manufacturing and design-enabled-manufacturing (DFM-DEM) proactive integrated manufacturing flow are presented. A method includes receiving design data related to layout of an integrated circuit (IC); extracting information from the design data; and performing analysis on the extracted information. The method also enables DFM-DEM aware manufacturing applications using information stored in a knowledge database. The method further updates the knowledge database with new information learned from at least the extracted information and the analysis. | 09-18-2014 |
Weixang Dai, Morgantown, WV US
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20090239947 | Inhibition of proliferation and fibrotic response of activated corneal stromal cells - Provided herein are methods of preventing a fibrotic response and/or scarring in a wound, comprising administering to a subject a composition comprising an amount of an amide or ester of an alpha-ketoalkanoic acid effective to inhibit a proliferative and/or fibrotic response in the wound. In one instance, the wound is to a subject's cornea, such as a wound resulting from refractive surgery. In one embodiment, the amide or ester of an alpha-ketoalkanoic acid is ethyl pyruvate. | 09-24-2009 |
Weixiang Dai, Morgantown, WV US
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20110190241 | TARGETING AN HIV-1 NEF-HOST CELL KINASE COMPLEX - Drug candidates for inhibition of HIV-I replication can target Src family kinases (SFK), such as Hck, that interact with Nef protein of the virus. Compounds characterized by such inhibitory activity were identified via an assay for kinase activity of an SFK in a Nef:SFK complex. Illustrative of inhibitors identified using the kinase assay are various 2,3-diaminoquinaxolines and furo[2,3-d]pyrimidines. The inventive inhibitors were found to arrest HIV-I viral replication in vitro. | 08-04-2011 |
20140128388 | TARGETING AN HIV-1 NEF-HOST CELL KINASE COMPLEX - Drug candidates for inhibition of HIV-1 replication can target Src family kinases (SFK), such as Hck, that interact with Nef protein of the virus. Compounds characterized by such inhibitory activity were identified via an assay for kinase activity of an SFK in a Nef:SFK complex. Illustrative of inhibitors identified using the kinase assay are various 2,3-diaminoquinaxolines and furo[2,3-d]pyrimidines. The inventive inhibitors were found to arrest HIV-1 viral replication in vitro. | 05-08-2014 |
Weizhen Dai, Rockville, MD US
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20130246081 | Systems and Methods for Supplementing Patient and Provider Interactions to Increase Patient Adherence - The present invention relates generally to a method of supplementing an electronic prescription issued by a health care provider, the method comprising: a) receiving, on a computer apparatus, electronic prescription data generated by a health care provider for a patient for a prescribed substance; b) the computer apparatus determining, from a plurality of available supplemental programs stored on one or more databases, supplemental programs for which the patient is eligible based on the electronic prescription data; c) presenting to the health care provider, in a display device, a list of the eligible supplemental programs, each of the eligible supplemental programs being selectable and de-selectable by the health care provider in the display device; and d) the computer apparatus activating each supplemental program from the plurality of available supplemental programs that have been selected and confirmed by the health care provider in the display device. | 09-19-2013 |
Wen Dai, Canton, MI US
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20100170460 | ENGINE VALVE DURATION CONTROL - Systems and methods for controlling air flow in an engine including a turbocharger are provided. One example method includes during a first operating range, operating the engine with a first exhaust valve duration at a first exhaust valve timing, during a second operating range, operating the engine with a second exhaust valve duration at a second timing, and during a third operating range, operating the engine with the first exhaust valve duration at a third timing, where engine load of the second operating range is higher than engine load of the first operating range, which in turn is higher than engine load of the third operating range, and where the first exhaust valve duration is longer than the second exhaust valve duration, and where the first timing is retarded to a greater extent than either of the second and third timings. | 07-08-2010 |
20140060009 | SECONDARY AIR INTRODUCTION SYSTEM AND METHOD FOR SYSTEM OPERATION - A vehicle system operation method is provided. The method comprises, during a first operating condition, increasing back pressure in a first exhaust conduit positioned upstream of a turbine and downstream of a first emission control device and during a second operating condition, reducing back pressure in the first exhaust conduit and flowing boosted air from downstream of a compressor into a second exhaust conduit positioned upstream of a second emission control device and downstream of the turbine. | 03-06-2014 |
20140060040 | SECONDARY AIR INTRODUCTION SYSTEM - Embodiments for heating an emission control device are provided. In one example, a method for a turbocharged engine comprises during an engine cold-start, delivering boosted air from downstream of a compressor into a wastegate duct coupled across a turbine and exothermically reacting a reductant with the boosted air upstream of an exhaust emission control device. In this way, boosted air may be used to initiate an exothermic reaction to heat the device. | 03-06-2014 |
Xianming Dai, Columbia, SC US
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20140037938 | Carbon Nanotube Enabled Hydrophobic-Hydrophilic Composite Interfaces and Methods of Their Formation - Methods are generally provided for forming a coated substrate having a plurality of carbon nanoparticles, along with the resulting coated substrates. In one embodiment, the method includes oxidizing the carbon nanoparticles to form oxygen containing end groups on the surfaces of the carbon nanoparticles; dispersing the oxidized carbon nanoparticles into a polymeric media to form an ink; and depositing the ink onto a substrate to form a coating. Generally, the coating includes the oxidized carbon nanoparticles dispersed within the polymeric material. | 02-06-2014 |
Xin Dai, Tucson, AZ US
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20100062176 | Boundary layer disruptive preconditioning in atmospheric-plasma process - The boundary layer of a substrate is exposed to a low-energy inert-gas atmospheric plasma that disrupts the layer's bonds, thereby permitting the removal of most oxygen from the surface of the substrate. The substrate is then passed through an exhaust section to remove the disrupted boundary layer prior to conventional plasma treatment. The subsequent plasma treatment is carried out in conventional manner in a substantially oxygen-free environment. As a result of the invention, the high surface-energy levels provided by plasma treatment are more lasting and plasma applications requiring a substantially oxygen-free environment are more efficient. | 03-11-2010 |
Xunhu Dai, Gilbert, AZ US
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20090085879 | ELECTRONIC DEVICE HAVING RIGID INPUT SURFACE WITH PIEZOELECTRIC HAPTICS AND CORRESPONDING METHOD - An electronic device and corresponding method provide haptic feedback to a user. The electronic device includes a rigid input surface, a piezoelectric element directly attached to the rigid input surface, sensors disposed adjacent to the rigid input surface for sensing when the user selects various portions of the rigid input surface, the sensors providing electrical signals indicative of the selected portions, and a controller that receives the electrical signals from the sensors, and in response thereto causes drive signals to be provided to the piezoelectric element causing deformation of the piezoelectric element and bending of the rigid input surface, wherein the bending of the rigid input surface provides haptic feedback to the user in response to the user selecting of the rigid input surface. | 04-02-2009 |
20100053087 | TOUCH SENSORS WITH TACTILE FEEDBACK - Touch sensors with one or more piezoelectric elements and devices containing such touch sensors are presented. The touch sensor contains keys that are independently actuated. Contact with a key provides tactile feedback through the piezoelectric element to the user. Each key provides an individual tactile feedback pattern that is dependent on the particular key contacted as well as the function of the key at the time of contact. Actuation of the key provides a different tactile feedback pattern. The piezoelectric element is bonded directly to a printed circuit board, on which electronic components are also mounted. | 03-04-2010 |
20100117809 | DISPLAY MODULE WITH PIEZOELECTRIC HAPTICS - A mobile communication terminal ( | 05-13-2010 |
20100225600 | Display Structure with Direct Piezoelectric Actuation - A user friendly display structure ( | 09-09-2010 |
Yifan Dai, Blacksburg, VA US
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20080250517 | Methods - The production of genetically modified animals, in which the genetic modifications are engineered in somatic cells cultured in vitro by gene targeting, is described. Genetically modified cells may then used as nuclear donors to produce, inter alia, live animals. The methods described can also be used to validate loci in animal chromosomes which are suitable sites for transgene addition to cells. | 10-09-2008 |
Yingcheng Dai, Novi, MI US
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20090140927 | MICROSTRIP ANTENNA - A microstrip antenna that can be linear, co-circular, or dual-circularly polarized having co-planar radiating elements and operating at dual frequency bands wherein an inner radiating element is surrounded by and spaced from an outer radiating element. Each radiating element resonates at a different frequency. In one embodiment of the invention a feed network has a single, cross-shaped, feed line that is positioned between the inner and outer radiating elements and capacitively coupled to the inner and outer radiating elements. In another embodiment of the present invention, the radiating elements are fed separately by first and second feed networks each having a plurality of feed points. The radiating elements each have one active feed point that is either directly or indirectly coupled to its respective feed network. | 06-04-2009 |
20110254740 | Microstrip Antenna - A microstrip antenna that can be linear, co-circular, or dual-circularly polarized having co-planar radiating elements and operating at dual frequency bands wherein an inner radiating element is surrounded by and spaced from an outer radiating element. Each radiating element resonates at a different frequency. In one embodiment of the invention a feed network has a single, cross-shaped, feed line that is positioned between the inner and outer radiating elements and capacitively coupled to the inner and outer radiating elements. In another embodiment of the present invention, the radiating elements are fed separately by first and second feed networks each having a plurality of feed points. The radiating elements each have one active feed point that is either directly or indirectly coupled to its respective feed network. | 10-20-2011 |
Yuemeng Dai, Little Rock, AR US
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20090270321 | Over-expression of MPS-1 gene or its gene product(s) results in reduction in size of a variety of malignancies - Metallopanstimulin-1 (MPS-1) is a multifunctional ribosomal protein. MPS-1 is a 10 kD zinc finger protein (ZFP) that is present in all tissues and expressed in increased quantities in a wide variety of proliferating tissues and malignancies. The ribosome is a ribonucleoprotein complex of ribosomal RNAs (rRNA) and proteins (r-protein). Conventionally, r-proteins are thought to be responsible for new protein synthesis, but emerging evidence has shown activity exists beyond this. Some extra-ribosomal functions of r-proteins have been observed in close relation to cancer pathology. MPS-1 is over-expressed in the serum and tissue of dozens of malignancies. However, it is unknown whether the enhanced expression of MPS-1 is the cause or result of tumor development and progression. Our preliminary observations show increased MPS-1 decreases paxillin. Recently, paxillin was found to have an important role in regulating both normal and tumor cell proliferation. | 10-29-2009 |
Yunqian Dai, St. Louis, MO US
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20120028793 | DUAL-OXIDE SINTER RESISTANT CATALYST - A catalyst material for use at elevated temperatures is provided. The material can include a plurality of fibers and a plurality of particles supported on the fibers. In addition, a porous layer can cover the plurality of particles and allow for process fluid to come into contact with the particles, and yet retard sintering of the particles at elevated temperatures is present. The plurality of fibers can be a plurality of nanofibers which may or may not be oxide nanofibers. The particles can be metallic nanoparticles and the porous layer can be a porous oxide layer. | 02-02-2012 |
Zhengshan Dai, Chapel Hill, NC US
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20100152895 | Shock freezer and system for preparing samples for analysis using the same - A shock freezer for rapidly freezing a sample preparatory to analysis, comprises an insulated closed container containing cryogenic fluid; a tubing disposed through the container having one end in contact with the cryogenic fluid and another end communicating outside the container, the another end for receiving a needle containing a sample to be shock frozen. The tubing has an inside diameter larger than an outside diameter of a capillary to be inserted therein to provide a space between an inside surface of the tubing and an outside surface of a capillary to be inserted therein to provide passageway for the cryogenic fluid to flow to the outside. An outlet communicates with an interior of the container. A relief valve is operably associated with the outlet, the relief valve being normally open to relieve pressure within the container, and the relief valve being closed when a capillary to be inserted containing a sample to be frozen is inserted into the tubing through the another end to allow pressure within the container to build up and force the cryogenic fluid to flow upwardly through the tubing through the space, thereby to freeze a sample in a capillary to be inserted. | 06-17-2010 |
Zhengyu Dai, Canton, MI US
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20080263807 | SYSTEM AND METHOD FOR CONTROLLING A WINDOW WIPER SYSTEM - A windshield wiper system for use on a hybrid electric vehicle is capable of adjusting the delay between consecutive cycles based on engine state and vehicle speed. The system includes a windshield wiper and a motor coupled to the windshield wiper. A sensor generates an engine speed signal and another sensor generates a vehicle speed signal. A processor in communication with the sensors and wiper motor provides a drive signal to the wiper motor which is based on the engine and vehicle speed. | 10-30-2008 |
20110288735 | Producing Vehicle Creep Through a Transmission Without a Torque Converter - A method for controlling creep in a vehicle having no transmission torque converter, includes operating an input clutch of the transmission at a desired clutch torque capacity, using a feed-forward engine torque to minimize the impact on the engine speed when additional load on the engine occurs from increasing the clutch torque capacity, producing a desired clutch slip by controlling engine idle speed, and achieving a desired vehicle speed by controlling the input clutch torque capacity. | 11-24-2011 |
20110307150 | Damping Oscillations During a Gear Ratio Change of a Dual Clutch Powershift Transmission - A method for controlling an upshift in a vehicle transmission includes transferring engine torque from an offgoing clutch to an oncoming clutch, using a torque capacity of the offgoing clutch to dampen oscillations when a difference between a speed of a transmission offgoing input and a calculated expected speed of said input is greater than a reference speed difference, and modulating engine torque during a ratio change phase of the shift. | 12-15-2011 |
20120312657 | Active Damping Tip-In Clutch Control of a Vehicle Transmission - A method for controlling an input clutch of a vehicle transmission during a tip-in includes using a current gear and rate of change of transmission input speed to determine a first torque modifier, if a peak or trough occurred in input speed, using the current gear and a difference between measured input speed and expected input speed to determine a second torque modifier, and changing a torque capacity of said clutch using said modifiers. | 12-13-2012 |
20130292223 | Pre-Staging and Boosting for Downshifts to Increase Regenerative Braking - A hybrid vehicle has a battery, a regenerative braking system, a transmission, and a controller. The controller boosts and strokes a hydraulic cylinder of an on-coming clutch when the state-of-charge of the battery allows regenerative braking and in response to a pedal actuation. The controller boosts and strokes the hydraulic cylinder before a disconnect clutch is opened and the transmission is downshifted to increase regenerative braking efficiency. | 11-07-2013 |
20130296103 | Adjusting Motor Torque to Enable Slip of Torque Converter Clutch to be Maintained when Accelerator Pedal Released in Hybrid Vehicle - A controller and a control strategy for a hybrid electric vehicle having a traction motor between an engine and an automatic transmission include maintaining a bypass clutch of a torque converter in an engaged position and applying a motor torque from a traction motor to the torque converter such that slip of the torque converter does not otherwise reach zero while the bypass clutch is maintained in the engaged position. | 11-07-2013 |
20130296106 | METHOD AND SYSTEM FOR CONTROLLING DRIVELINE LASH IN A HYBRID VEHICLE - A vehicle has an engine, an upstream clutch, an electric machine, a downstream clutch, a transmission gearbox, and a controller. The controller is configured to: (i) control engagement of the downstream clutch, (ii) monitor a vehicle torque, and (iii) control electric machine torque to a designated rate when the vehicle torque changes direction and the electric machine is operating. A method for controlling a hybrid vehicle includes engaging a clutch downstream of the electric machine, monitoring a vehicle torque, and controlling electric machine torque to a designated rate when vehicle torque changes direction and the electric machine is operating. A hybrid vehicle system has an electric machine and a controller configured to (i) control electric machine torque to a designated rate within a time zone, and (ii) control at least one of the electric machine torque and an engine torque to meet driver demand outside of the zone. | 11-07-2013 |
20130296109 | Method and Apparatus for Starting an Engine of a Modular Hybrid Transmission Based Upon Demanded Torque - A control system including a method and apparatus for operating a hybrid vehicle. A disconnect clutch selectively separates an electric machine from a combustion engine. If a wide open throttle or high torque command is requested and the combustion engine is shut down, a 12 volt starter may be used to start the combustion engine while disconnected from the electric machine and all of the electric machine torque available may be used for traction. | 11-07-2013 |
20130296110 | Modulating Engine Torque to Synchronization Engine Speed with Motor Speed for Disconnect Clutch Engagement in Hybrid Vehicle - A system and method for controlling a hybrid vehicle having an engine, a traction motor, and a transmission selectively coupled in series by a clutch include modulating engine torque while the clutch is disengaged and while engine speed is less than motor speed to increase the engine speed. The clutch is engaged to connect the engine to the motor in response to the engine speed exceeding the motor speed. | 11-07-2013 |
20130296111 | ENGINE RESTART TORQUE SPIKE MANAGEMENT SYSTEM FOR A HYBRID VEHICLE - A method for controlling a hybrid vehicle having a traction motor between an engine and a step ratio automatic transmission during a startup of the hybrid vehicle. The method includes performing at least one of adjusting a clutch or an oil pressure to change a transmission tie-up force or downshifting the transmission in response to an actuation rate of a vehicle driver demand. | 11-07-2013 |
20130296116 | Hybrid Torque Converter Control During Rolling Engine Start For Driveline Damping - A system and method for controlling a hybrid vehicle including a transmission having a torque converter with a bypass clutch include controlling the slip between the impeller and the turbine of the torque converter in slip mode operation to regulate the converter torque ratio and maintain substantially constant torque at the turbine. Controlled slip uses the hydrodynamic coupling of the torque converter to balance the desired and delivered torque while damping torque disturbances transmitted through the driveline to manage noise, vibration and harshness (NVH). | 11-07-2013 |
20130296127 | TORQUE HOLE FILLING IN A HYBRID VEHICLE DURING AUTOMATIC TRANSMISSION SHIFTING - A system and method for reducing torque disturbances during a shift event for a hybrid vehicle having an engine selectively coupled to a traction motor and an automatic transmission to control or compensate actual transmission input shaft torque based on measured transmission input torque by controlling a torque source, such as a traction motor. The system and method may include an engine, a transmission, a traction motor between the engine and the transmission with the engine being selectively coupled to the motor and the transmission by a disconnect clutch and a controller configured to control motor torque to cause an actual transmission input shaft torque to achieve a target transmission input shaft torque during a transmission shift event. | 11-07-2013 |
20130297107 | TRACTION CONTROL SYSTEM FOR A HYBRID VEHICLE - A controller and a control strategy for a hybrid electric vehicle includes entering a traction control event, and lowering a driving force transmitted from a driving wheel to a road surface by reducing the torque of a motor while maintaining the torque of an engine at a substantially constant torque output during a wheel slip condition of the traction control event. | 11-07-2013 |
20130297162 | DYNAMIC SHIFT SCHEDULING IN A HYBRID VEHICLE HAVING A STEP RATIO AUTOMATIC TRANSMISSION - A hybrid vehicle having an engine and motor in series with a step ratio automatic transmission shifts the transmission according to a first shift schedule based on driver demand and output speed or a second shift schedule based on efficient operating speeds of the engine and motor associated with the target gear ratio. A powertrain controller continually calculates engine and motor speeds and torques associated with target gear ratios for the second shift schedule to select a gear ratio based on operating efficiency. An arbitration strategy may compare a weighted target gear ratio from the first schedule shift schedule to a weighted target gear ratio from the second shift schedule to dynamically select a desired target gear for powertrain control management. | 11-07-2013 |
20140038772 | Traction Control System For A Hybrid Vehicle - A method for controlling a hybrid vehicle having a traction motor and a torque converter between an engine and a step ratio automatic transmission during a traction control event. The method includes reducing motor torque, and subsequently controlling the torque converter or the step ratio automatic transmission while maintaining engine torque constant during a wheel slip condition of the traction control event to lower driving force transmitted from a driving wheel to a road surface. | 02-06-2014 |
20140277867 | Vehicle Mass Detection System - A vehicle system and a method for calculating a vehicle mass is provided. In at least one embodiment, the system and the method measure current consumed by an electric machine of the vehicle to calculate vehicle mass. A controller of the vehicle uses the calculated mass to control operation of the vehicle, for example a four wheel drive, transmission, stability control, or brake system of the vehicle. A GPS and tire speed sensor system may be incorporated to detect the presence of a towed object, for example a trailer, and to further adjust operation of the vehicle. | 09-18-2014 |
20150087475 | REGENERATIVE BRAKING AND TORQUE CONVERTER CONTROL - A method for controlling vehicle regenerative braking includes decreasing regenerative braking, provided a converter clutch is locked, such that regenerative braking torque reaches zero before a converter clutch opens due to vehicle speed reaching a reference speed; decreasing regenerative braking, provided the converter clutch is scheduled to open, such that regenerative braking torque reaches zero before the converter clutch opens due to vehicle speed reaching the reference speed; and braking the vehicle using wheel brakes. | 03-26-2015 |
Zhenting Dai, Chandler, AZ US
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20140011014 | THREE-DIMENSIONAL (3D) POROUS DEVICE AND METHOD OF MAKING A 3D POROUS DEVICE - A method of making a three-dimensional porous device entails providing a substrate having a conductive pattern on a surface thereof, and depositing a colloidal solution comprising a plurality of microparticles onto the surface, where the microparticles assemble into a lattice structure. Interstices of the lattice structure are infiltrated with a conductive material, which propagates through the interstices in a direction away from the substrate to reach a predetermined thickness. The conductive material spans an area of the surface overlaid by the conductive pattern. The microparticles are removed to form voids in the conductive material, thereby forming a conductive porous structure having the predetermined thickness and a lateral size and shape defined by the conductive pattern. | 01-09-2014 |
Zhisheng Dai US
Patent application number | Description | Published |
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20080275204 | CARDANOL BASED DIMERS AND USES THEREFOR - Cardanol based dimers are provided. The cardanol dimers are formed by hydrosylylation with silanes. Cardanol based dimers may be further reacted to form epoxy curing agents and epoxies which can be used as anti-fouling coatings on ship hulls and marine structures. The cardanol dimers may also be used to produce friction particles or phenolic resins. Methods of synthesizing the cardanol based dimers, the epoxy curing agents and the epoxies are also provided. | 11-06-2008 |
Zhongtao Dai, Glastonbury, CT US
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20130232978 | FUEL AIR PREMIXER FOR GAS TURBINE ENGINE - A fuel-air premixer for a combustor of a turbine engine includes a central passage along an axis. The central passage is operable to communicate an unswirled airflow. An outer annular passage is located around the axis and includes a multiple of first swirl vanes that are operable to communicate a first swirled airflow in a first direction. An inner annular passage is located around the axis between the central passage and the outer annular passage. The inner annular passage includes a multiple of second swirl vanes that are operable to communicate a second swirled airflow in a second direction different than the first direction. | 09-12-2013 |
20140007581 | FUEL FLEXIBLE FUEL INJECTOR - A disclosed fuel injector provides mixing of fuel with airflow by surrounding a swirled fuel flow with first and second swirled airflows that ensures mixing prior to or upon entering the combustion chamber. Fuel tubes produce a central fuel flow along with a central airflow through a plurality of openings to generate the high velocity fuel/air mixture along the axis of the fuel injector in addition to the swirled fuel/air mixture. | 01-09-2014 |
20140013763 | FUEL-AIR PRE-MIXER WITH PREFILMER - A fuel-air premixer for a combustor of a gas turbine engine includes a central passage disposed along an axis and operable to communicate a first airflow and an outer annular passage about the axis operable to communicate a second airflow. The fuel-air premixer further includes an inner annular passage about the axis and between the central passage and the outer annular passage for communicating fuel flow. The inner annular passage including an inner exit angled for directing fuel flow toward the axis into a mixer passage downstream of the outer and inner exits for mixing the fuel flow with the first and second airflows. | 01-16-2014 |
Zhongtao Dai, Manchester, CT US
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20120186256 | MIXER ASSEMBLY FOR A GAS TURBINE ENGINE - A mixer assembly for a gas turbine engine is provided, including a main mixer with fuel injection holes located between at least one radial swirler and at least one axial swirler, wherein the fuel injected into the main mixer is atomized and dispersed by the air flowing through the radial swirler and the axial swirler. | 07-26-2012 |
20120186258 | MIXER ASSEMBLY FOR A GAS TURBINE ENGINE - A mixer assembly for a gas turbine engine is provided, including a main mixer, and a pilot mixer having an annular housing in which a corner is formed between an aft portion of the housing and a bulkhead wall in which a corner recirculation zone is located to stabilize and anchor the flame of the pilot mixer. The pilot mixer can further include features to cool the annular housing, including in the area of the corner recirculation zone. | 07-26-2012 |
Zhong-Tao Dai, West Chester, OH US
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20080229753 | METHODS AND APPARATUS TO FACILITATE DECREASING COMBUSTOR ACOUSTICS - A method for operating a gas turbine engine including a compressor and a combustor is provided. The method comprises channeling between about 0% to about 8% of the total airflow discharged from a compressor towards a pilot swirler coupled within the burner, wherein the burner includes a main swirler and an annular centerbody extending between the pilot and main swirlers, injecting a portion of the total fuel flow supplied to the burner through a plurality of apertures defined in a hollow pilot centerbody coupled within the pilot swirler, channeling the remaining airflow discharged from the compressor towards the main swirler, and injecting the remaining fuel flow supplied to the burner through at least one main swirler vane coupled within the main swirler, such that the portion of fuel is pre-mixed with a portion of the total airflow. | 09-25-2008 |