Qingfeng
Qingfeng Cai, Zhejiang CN
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20150087828 | 4-SUBSTITUENT-2-HYDROXYLMORPHOLINE-3-ONE AND PREPARATION METHOD THEREOF - A molecule with neural activities, especially 4-substituent-2-hydroxymorpholin-3-one, as a new intermediate of neurokinin-1 receptor antagonist aprepitant, and preparation method thereof. | 03-26-2015 |
Qingfeng Chen, Shenzhen CN
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20110307585 | METHOD, DEVICE AND SYSTEM FOR CONTROLLING MULTICHANNEL CASCADE BETWEEN TWO MEDIA CONTROL SERVERS - The embodiments of the present invention disclose a method, a device, and a system for controlling multichannel cascade between two media control servers. The method comprises: receiving a service request message; choosing a target channel among all the channels multichannel-cascaded with an opposite cascaded media control server according to the service request message and a preset channel usage rule; and sending information about the determined target channel to the opposite cascaded media control server so as to enable the opposite cascaded media control server to carry out code stream switching according to the information about the target channel. The method disclosed in the embodiments of the present invention saves cascaded channels and improves the utilization of cascaded channels, thereby saving channel resources. | 12-15-2011 |
Qingfeng He, Zhanjiang CN
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20140323404 | ANTICOAGULANT POLYPEPTIDE AND APPLICATIONS THEREOF - Disclosed is an anticoagulant polypeptide and applications thereof. The anticoagulant polypeptide comprises a polypeptide formed by an amino acid sequence as represented in Seq. ID No. 1; or comprises a derived polypeptide that selectively inhibits coagulation factor XIa and is formed by an amino acid sequence, as represented in Seq. ID No. 1, that has undergone one or multiple amino acid residue substitutions, deletions, or insertions. The anticoagulant polypeptide is a selective inhibitor for coagulation factor XIa, has anticoagulant activity and small side-effect, and can be used in preparing medicines for the prevention and treatment of thrombotic diseases. | 10-30-2014 |
Qingfeng He, Fuyang CN
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20140069482 | Solar Roofing Tiles and Manufacturing Method Thereof - The present invention relates a solar roofing tile and manufacturing method thereof. A solar roofing tile comprises a substrate and a solar cell mounted on the substrate. The upper surface of substrate is provided with a zebra vein. The manufacturing method is to make substrate first and then coat dark glaze material to the surface of substrate to form dark vein. The part of substrate without coating glaze material forms a white vein. The dark vein and the white vein constitute zebra veins. Finally bond solar module to the substrate. The object of the present invention is to provide a solar roofing tile to promote air circulation on substrate surface and its manufacturing method to solve the problem of poor heat dissipation, poor efficiency in hot days and hence poor thermal insulation in existing photovoltaic tile. | 03-13-2014 |
Qingfeng Li, Nanhai Foshan CN
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20110193305 | ROLLATOR - A rollator is disclosed in this invention. The rollator includes: a base frame; front wheel assemblies and rear wheel assemblies respectively mounted on both sides of the base frame; an inverted U-shaped supporting pipe; a H-shaped armrest bracket; connection pieces having block grooves thereon; a slide control lever for cooperating with the block grooves; a seat plate; a spring element; wherein the base frame is provided with unidirectional hinged seats; both bottom ends of the supporting pipe are hinged to the base frame, and both side arms of the supporting pipe are provided with slide holes facing each other; the armrest bracket has bottom portions hinged to the unidirectional hinged seat. The rollator has a simple structure and can be used for various situations in both folded and unfolded state. | 08-11-2011 |
Qingfeng Li, Brondby Strand DK
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20120270122 | METHOD OF OPERATING A DIRECT DME FUEL CELL SYSTEM - The present invention relates to a method of operating a fuel cell system comprising one or more fuel cells with a proton exchange membrane, wherein the membrane is composed of a polymeric material comprising acid-doped polybenzimidazole (PBI). The method comprises adjusting the operating temperature of the fuel cell to between 120 and 250° C., supplying an oxidant stream to the cathode, and supplying a humidified fuel stream to the anode, said fuel stream comprising dimethyl ether, wherein dimethyl ether is directly oxidised at the anode. | 10-25-2012 |
Qingfeng Liu, Hefei City CN
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20150348542 | SPEECH RECOGNITION METHOD AND SYSTEM BASED ON USER PERSONALIZED INFORMATION - The present invention relates to a speech recognition method and system based on user personalized information. The method comprises the following steps: receiving a speech signal; decoding the speech signal according to a basic static decoding network to obtain a decoding path on each active node in the basic static decoding network, wherein the basic static decoding network is a decoding network associated with a basic name language model; if a decoding path enters a name node in the basic static decoding network, network extending is carried out on the name node according to an affiliated static decoding network of a user, wherein the affiliated static decoding network is a decoding network associated with a name language model of a particular user; and returning a recognition result after the decoding is completed. The recognition accuracy rate of user personalized information in continuous speech recognition may be raised by using the present invention. | 12-03-2015 |
Qingfeng Liu, Hefei CN
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20130197911 | Method and System For Endpoint Automatic Detection of Audio Record - A method and system for endpoint automatic detection of audio record is provided. The method comprises the following steps: acquiring a audio record text and affirming the text endpoint acoustic model for the audio record text; starting acquiring the audio record data of each frame in turn from the audio record start frame in the audio record data; affirming the characteristics acoustic model of the decoding optimal path for the acquired current frame of the audio record data; comparing the characteristics acoustic model of the decoding optimal path acquired from the current frame of the audio record data with the endpoint acoustic model to determine if they are the same; if yes, updating a mute duration threshold with a second time threshold, wherein the second time threshold is less than a first time threshold. This method can improve the recognizing efficiency of the audio record endpoint. | 08-01-2013 |
Qingfeng Lu, Zhangjiagang City CN
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20130086862 | FLEXIBLE FLOOR MEMBER WITH A SURFACE DECLINATION AND BEVELED EDGES - The floor member, in one embodiment of the invention, is a floor member unit having a surface declination at the periphery of a top surface and extending downwardly to a peripheral beveled edge, and intersecting with the beveled edge between the top surface and a bottom surface. The surface declination can be curved or uncurved. In another embodiment of the invention the floor member unit is laminated in offset relationship to an underlayer of the same size and shape as the floor member unit. In either embodiment, the floor member can be formed as a floor tile or a floor plank. | 04-11-2013 |
Qingfeng Ma, Hefei CN
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20150082783 | ENERGY REGENERATION TYPE FORKLIFT HYDRAULIC SYSTEM - An energy regeneration type forklift hydraulic system is provided, which includes a first oil pump, a first electrical motor, a multiple directional control valve, a lifting oil cylinder, a tilting oil cylinder, a steering oil cylinder, a load-sensing steering device, an oil filter, a second oil pump and an oil tank, wherein the multiple directional control valve includes an oil inletting and returning valve spool, a raising and lowering reversing valve spool, a tilting reversing valve spool, and an oil inletting valve spool. The raising and lowering reversing valve spool includes a raising and lowering three-position six-way reversing valve, an annular oil returning passage and an oil returning passage. The system can utilize the potential energy of lowering cargo to simultaneously drive two oil pumps for driving two motors to generate energy, thereby realizing energy recovery. | 03-26-2015 |
Qingfeng Tao, Katy, TX US
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20150331976 | FORECASTING OIL PRODUCTION FOR MULTIPLY-FRACTURED HORIZONTAL WELLS - Methods, computing systems, and computer-readable media for forecasting oil recovery from a well. The method includes obtaining bottom-hole pressures, production rates, and a reservoir pressure for the well, and calculating pressure normalized rates based thereon. The method also includes forecasting a forecasted bottom-hole pressure for a first material balance time, based on the plurality of bottom-hole pressures, and forecasting a forecasted pressure normalized rate for the first material balance time based on the pressure normalized rates. The method further includes calculating a forecasted production rate for the first material balance time, based on the production rates, and determining a first forecasted cumulative production at the first material balance time based on the forecasted production rate, bottom-hole pressure, and pressure normalized rate, and converting the first material balance time to a first real time based at least partially on the forecasted cumulative production and production rate. | 11-19-2015 |
Qingfeng Wan, Shizuishan City CN
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20160035494 | Tantalum Wire Used for Anode Lead of Tantalum Capacitor and Manufacturing Method Thereof - The present invention relates to a tantalum wire for anode lead of tantalum capacitors, characterized in that the cross section of the tantalum wire is approximate rectangular or regular rectangular. The present invention also relates to a process for manufacturing the tantalum wire, comprising the steps of: providing feedstock tantalum wire; subjecting the feedstock tantalum wire to heat treatment; subjecting the heat treated tantalum wire to surface pretreatment to form an oxide membrane on the surface-pretreated tantalum wire; rolling the surface-pretreated tantalum wire by lubricating with lubricant oil to make the cross section of the rolled tantalum wire being approximate rectangular or regular rectangular; subjecting the tantalum wire to final annealing. | 02-04-2016 |
Qingfeng Yang, Montreal CA
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20150113174 | INTELLIGENT SUPERVISION FOR CONFIGURATION OF PRECISION TIME PROTOCOL (PTP) ENTITIES - An intelligent supervisor located at a management node in the PTP network determines the PTP roles and configuration of the client nodes. The intelligent supervisor communicates with intelligent supervisor agents located at client nodes in the PTP network. The intelligent supervisor agents at the client nodes feed back information, such as the PTP properties of the client nodes, to the intelligent supervisor. The intelligent supervisor analyzes the data to determine the roles and appropriate configuration for the client nodes. | 04-23-2015 |
20150381299 | Time Synchronous Pluggable Transceiver - A pluggable transceiver module ( | 12-31-2015 |
Qingfeng Yang, Beijing CN
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20150127978 | METHOD AND SYSTEM FOR ROBUST PRECISION TIME PROTOCOL SYNCHRONIZATION - A method and system for maintaining clock synchronization in a communication network having multiple clocks are disclosed. According to one aspect, the invention provides a first precision time protocol (PTP) instance and second PTP service instance. Dynamic PTP parameters and tuning PTP parameters are periodically cloned from the first PTP service instance to the second PTP service instance substantially in real time. | 05-07-2015 |
Qingfeng Yi, Guangzhou City CN
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20150112004 | HALOGEN-FREE FIRE-RETARDANT POLYAMIDE COMPOSITION AND PREPARATION METHOD AND APPLICATION THEREOF - Disclosed are a halogen-free fire-retardant polyamide composition, and a preparation method and application thereof. The halogen-free fire-retardant polyamide composition is prepared from 35 to 71.5% of a semi-aromatic polyamide, 10 to 35% of a fire retardant and 0 to 50% of an inorganic reinforcing filler, the terminal amino group content of the semi-aromatic polyamide being 80 to 150 mol/t. The halogen-free fire-retardant polyamide composition of the present invention has good heat stability and releases only a small amount of gas in production; mold dirt is not easily formed, and the halogen-free fire-retardant polyamide composition can be produced continuously. | 04-23-2015 |
Qingfeng Yi, Guangzhou CN
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20140303293 | Heat-Resistant Polyamide Composition and Application Thereof - The present invention discloses a heat-resistant polyamide composition and application thereof. The composition comprises the following components in percentage by weight: 40% to 90% of heat-resistant polyamide resin, 5% to 35% of mineral fiber A, 0 to 35% of mineral filler B, 0.1% to I% of light stabilizer, 0.1% to 1% of flow modifier and 0.1% to 1% of antioxidant. In the present invention, heat-resistant polyamide resin with the ratio of amine-terminated group and carboxyl-terminated group between 0.1 and 0.8 is selected to be matched with deformed glass fibers with an aspect ratio of 2 to 6, the mineral filler B and the flow modifier to obtain the heat-resistant polyamide composition. The heat-resistant polyamide composition not only has high initial whiteness, high reflectivity and excellent heat resistance, but also has good moldability and good dimensional stability; therefore, the heat-resistant polyamide composition is capable of being applied for preparing the reflecting supports for s toll light sources as LCD backlight of portable phones, computers, televisions and the like, as well as headlights of automotive vehicles, instrument panels and lighting appliances, etc. | 10-09-2014 |
Qingfeng Yu, Yantai City CN
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20150204148 | CONTINUOUS OIL PIPE CLAMP MECHANISM - The continuous oil pipe clamp mechanism includes a saddle-shaped clamp block and a clamp block seat. The saddle-shaped clamp block is buckled on the clamp block seat. The saddle-shaped clamp block includes a saddle-shaped clamp portion and a bottom, wherein the bottom has a clamp groove, and tongue platforms are arranged at two ends of the clamp groove. The clamp block seat includes a fit portion fitted to the saddle-shaped clamp block, wherein the fit portion is provided with a sunk groove matched with the clamp groove and pairs of bosses. Groves matched with the tongue platforms are formed between the pairs of bosses. The clamp groove is buckled in the sunk groove, and the tongue platforms are arranged in the grooves and are limited by stop pins. The mechanism facilitates replacement of the clamp block, enabling an injection head to be stable in continuous work and convenient to maintain. | 07-23-2015 |
Qingfeng Yu, Yantai CN
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20140000868 | Floating Clamping Device for Injection Head of Continuous Oil Pipe | 01-02-2014 |
Qingfeng Zhang, Shanghai CN
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20140116578 | HIGH-STRENGTH HIGH-TOUGHNESS STEEL PLATE WITH YIELD STRENGTH OF 700MPA AND METHOD OF MANUFACTURING THE SAME - The present invention relates to a high-strength high-toughness steel plate and a method of manufacturing the steel plate. The steel plate contains the following chemical compositions, by weight, C: 0.03-0.06%, Si≦0.30%, Mn: 1.0-1.5%, P≦0.020%, S≦0.010%, Al: 0.02-0.05%, Ti: 0.005-0.025%, N≦0.006%, Ca≦0.005%, and more than one of Cr≦0.75%, Ni≦0.40%, Mo≦0.30%, other compositions being Ferrum and unavoidable impurities.The finished steel plate, with a thickness of 6-25 mm, has a yield strength of ≧700 MPa, an elongation A50 of ≧18%, Akv at −60° C. of ≧150 J and good cool bending property. | 05-01-2014 |