Patent application number | Description | Published |
20100198101 | NON-INVASIVE LOCATION AND TRACKING OF TUMORS AND OTHER TISSUES FOR RADIATION THERAPY - Embodiments herein provide a non-invasive tracking system that accurately predicts the location of tumors, such as lung tumors, in real time, while allowing patients to breathe naturally. This is accomplished by using Electrical Impedance Tomography (EIT), in conjunction with spirometry, strain gauge and infrared sensors, and by using sophisticated patient-specific mathematical models that incorporate the dynamics of tumor motion. With the direction and speed of lung tumor movement successfully tracked, radiation may be effectively delivered to the lung tumor and not to the surrounding healthy tissue, thus increased radiation dosage may be directed to improving local tumor control without compromising functional parenchyma. | 08-05-2010 |
20140012061 | NON-INVASIVE LOCATION AND TRACKING OF TUMORS AND OTHER TISSUES FOR RADIATION THERAPY - Embodiments herein provide a non-invasive tracking system that accurately predicts the location of tumors, such as lung tumors, in real time, while allowing patients to breathe naturally. This is accomplished by using Electrical Impedance Tomography (EIT), in conjunction with spirometry, strain gauge and infrared sensors, and by using sophisticated patient-specific mathematical models that incorporate the dynamics of tumor motion. With the direction and speed of lung tumor movement successfully tracked, radiation may be effectively delivered to the lung tumor and not to the surrounding healthy tissue, thus increased radiation dosage may be directed to improving local tumor control without compromising functional parenchyma. | 01-09-2014 |
Patent application number | Description | Published |
20100188108 | LIQUID WATER SENSOR SIGNAL CONDITIONING CIRCUIT FOR USE IN PEM FUEL CELLS - A measurement circuit that has particular application for detecting a high impedance measurement signal from a liquid water sensor. The measurement circuit includes a high impedance resistance-to-frequency conversion circuit that is coupled to the sensor and receives a resistance signal therefrom. The resistance-to-frequency conversion circuit includes an oscillator that converts the resistance signal to a representative frequency. The measurement circuit also includes a frequency-to-voltage conversion circuit that receives the frequency signal from the resistance-to-frequency conversion circuit, and converts the frequency signal to a representative voltage that provides an indication of water on the sensor. | 07-29-2010 |
20100248070 | VARIABLE CATALYST LOADING BASED ON FLOW FIELD GEOMETRY - A fuel cell including a membrane electrode assembly composed of a ionically conductive member sandwiched between a pair of electrodes. At least one of the electrodes including a catalyst loading characterized by catalytic activity that varies in proportion to the catalyst loading. Moreover, the fuel cell includes a flow path for supplying gaseous reactants to the electrodes and the catalyst loading is varied according to the flow path geometry. | 09-30-2010 |
20100330458 | VARIABLE CATALYST LOADING BASED ON FLOW FIELD GEOMETRY - A fuel cell including a membrane electrode assembly composed of a ionically conductive member sandwiched between a pair of electrodes. At least one of the electrodes including a catalyst loading characterized by catalytic activity that varies in proportion to the catalyst loading. Moreover, the fuel cell includes a flow path for supplying gaseous reactants to the electrodes and the catalyst loading is varied according to the flow path geometry. | 12-30-2010 |
20110195329 | Variable Catalyst Loading Based On Flow Field Geometry - A fuel cell including a membrane electrode assembly composed of a ionically conductive member sandwiched between a pair of electrodes. At least one of the electrodes including a catalyst loading characterized by catalytic activity that varies in proportion to the catalyst loading. Moreover, the fuel cell includes a flow path for supplying gaseous reactants to the electrodes and the catalyst loading is varied according to the flow path geometry. | 08-11-2011 |
20120064424 | LOW COST METHOD AND SIGNAL PROCESSING ALGORITHM TO RAPIDLY DETECT ABNORMAL OPERATION OF AN INDIVIDUAL FUEL CELL IN A PLURALITY OF SERIES CONNECTED FUEL CELLS - A system and method for determining reactant gas flow through a fuel cell stack to determine potential stack problems, such as a possible low performing fuel cell. The method includes applying a perturbation frequency to the fuel cell stack and measuring the stack current and stack voltage in response thereto. The measured voltage and current are used to determine an impedance of the stack fuel cells, which can then be compared to a predetermined fuel cell impedance for normal stack operation. If an abnormal fuel cell impedance is detected, then the fuel cell system can take corrective action that will address the potential problem. | 03-15-2012 |
Patent application number | Description | Published |
20100113251 | HIGH STRENGTH PROPPANTS - A sintered ceramic particle made from a ceramic material having a true density greater than 3.5 g/cc and a composition having no more than 30 weight percent silicon oxide and at least 15 weight percent iron oxide, based on the combined weight of the oxides of aluminum, iron and silicon, is disclosed. A process that utilizes an externally applied compressive force to make a ceramic particle is also disclosed. | 05-06-2010 |
20100167056 | CERAMIC ARTICLE AND PROCESS FOR MAKING THE SAME - Disclosed is a process for producing ceramic particles, such as proppants, that have at least 10 percent total porosity. The process includes forming a particle precursor that includes 5 percent to 30 percent of a first ceramic material and at least 40 percent of a second ceramic material. The sintering temperature of the first ceramic material may be lower than the sintering temperature of a second ceramic material. Heating the precursor to a maximum temperature above the sintering temperature of the first material and below the sintering temperature of the second material. Also disclosed is a ceramic article that has a particular combination of chemistry and alumina crystalline phase. | 07-01-2010 |
20110086201 | SOLAR HEAT-REFLECTIVE ROOFING GRANULES, SOLAR HEAT-REFLECTIVE SHINGLES, AND PROCESS FOR PRODUCING THE SAME - A process for preparing roofing granules includes forming kaolin clay into green granules and sintering the green granules at a temperature of at least 900 degrees Celsius to cure the green granules until the crystalline content of the sintered granules is at least ten percent as determined by x-ray diffraction. | 04-14-2011 |
20140248467 | SOLAR HEAT-REFLECTIVE ROOFING GRANULES, SOLAR HEAT-REFLECTIVE SHINGLES AND PROCESS FOR PRODUCING THE SAME - A process for preparing roofing granules includes forming kaolin clay into green granules and sintering the green granules at a temperature of at least 900 degrees Celsius to cure the green granules until the crystalline content of the sintered granules is at least ten percent as determined by x-ray diffraction. | 09-04-2014 |
Patent application number | Description | Published |
20110265995 | METHODS FOR USING HIGH STRNGTH CERAMIC ELEMENTS - One embodiment of the present invention relates to spherical ceramic elements, such as proppants, for maintaining permeability in subterranean formations to facilitate extraction of oil and gas therefrom. The strength of the ceramic element may be enhanced by combining materials having different coefficients of thermal expansion. Methods of making the ceramic elements are also disclosed. | 11-03-2011 |
20110268877 | METHODS FOR MAKING HIGH STRENGTH CERAMIC ELEMENTS - One embodiment of the present invention relates to spherical ceramic elements, such as proppants, for maintaining permeability in subterranean formations to facilitate extraction of oil and gas therefrom. The strength of the ceramic element may be enhanced by combining materials having different coefficients of thermal expansion. Methods of making the ceramic elements are also disclosed. | 11-03-2011 |
20130123152 | CERAMIC PARTICLES AND METHODS FOR MAKING THE SAME - Disclosed is a population of ceramic particles that includes a plurality of individual, free flowing particles. The plurality has a total weight and particle size distribution. The effective width of the distribution is the difference between the distribution's d | 05-16-2013 |
20130168616 | ROOFING GRANULES - A roofing product can include roofing granules, wherein the roofing granules include base particles and a coating covering the base particles. The base particles are sintered. The coating has a depth of penetration into an outside surface of at least about 0.5% of an average radius of the base particles. In an embodiment, the coating has a depth of penetration into an outside surface of at least about 2.5 microns into the base particles. Further included is a process of forming the roofing granules. | 07-04-2013 |
20140011658 | CERAMIC PARTICLE AND PROCESS FOR MAKING THE SAME - A ceramic particle with at least two microstructural phases comprising an amorphous phase, representing between 30 volume percent and 70 volume percent of the particle, and a first substantially crystalline phase comprising a plurality of predominately crystalline regions distributed through the amorphous phase is disclosed. A process for making the ceramic particle is also disclosed. | 01-09-2014 |
20140374938 | PROCESS FOR MAKING A CERAMIC ARTICLE - Disclosed is a process for producing ceramic particles, such as proppants, that have at least 10 percent total porosity. The process includes forming a particle precursor that includes 5 percent to 30 percent of a first ceramic material and at least 40 percent of a second ceramic material. The sintering temperature of the first ceramic material may be lower than the sintering temperature of a second ceramic material. Heating the precursor to a maximum temperature above the sintering temperature of the first material and below the sintering temperature of the second material. Also disclosed is a ceramic article that has a particular combination of chemistry and alumina crystalline phase. | 12-25-2014 |
Patent application number | Description | Published |
20090109460 | USING APPLICATION SIDE TRUETYPE OR OTHER OUTLINE FONTS TO CREATE SPECIALTY IMAGING FONTS ON DIGITAL FRONT-END - A document printing method includes receiving a print job of electronic document data representing a document including a security character string with at least one character defined in the electronic document data in terms of a security mark creation font. The security mark creation font is a scalable outline based font, wherein the security character string is defined with a selected security effect, and wherein the security mark creation font provides an indication of the selected security effect without implementing the security effect. An SI Font is selected that corresponds to the security mark creation font of the at least one character of the security character string. The SI Font includes a bitmap representation of the at least one character of the security character string. The SI Font is suitable for printing the security character string with the selected security effect. The step of selecting an SI Font includes selecting the SI Font based upon a unique name of the SI Font that corresponds to a name of the security mark creation font, and also includes selecting the SI Font based upon at least one other attribute of the security mark creation font. A font substitution is performed in which the selected SI Font is used to define the security character string in the electronic document data in place of the security mark creation font. After the font substitution, a hard copy output of the document is printed as defined by the electronic document data including the substituted SI Font. A system is disclosed for performing the document printing method. | 04-30-2009 |
20100021069 | PDF DE-CHUNKING AND OBJECT CLASSIFICATION - Systems and methods are described that facilitate identifying objects in a document (e.g., a PDF document) for automatic image enhancement (AIE). A PDF document is “chunked” or segmented into chunks, and boundaries between chunks are identified as real or imaginary. Chunks sharing imaginary boundaries are combined, while real boundaries are retained, to generate “de-chunked” objects. These objects are then classified, and an AIE application is executed on objects meeting pre-specified classification criteria. In this manner, objects of r which AIE is not desired are not subjected to the AIE application, thereby saving time and processing resources associated with enhancing the document. | 01-28-2010 |
20100128321 | METHODS AND SYSTEMS TO EMBED GLOSSMARK DIGITAL WATERMARKS INTO CONTINUOUS-TONE IMAGES - Disclosed are methods/systems to embed a watermark into a contone image. Specifically, the disclosed methods and systems spatially modulate a contone image substantially adjacent a watermark area according to a first polarization and spatially modulate the contone image substantially within the watermark area according to a second polarization. These spatially modulated images may then be subsequently processed, stored, communicated and/or rendered. | 05-27-2010 |
20100150433 | VARIABLE DATA DIGITAL PANTOGRAPHS - A variable data pantograph is formed by receiving a variable data string and retrieving at least one character representation from a vocabulary of character representations stored in memory. The retrieved at least one character representation corresponds to the variable data string. Each of the character representations in the vocabulary is associated with a foreground region including a character shape and a background region suitably sized and arranged for encompassing the foreground region. The background region incorporates a first pattern of elements and is controlled to render a target color using a first set of color separation control data and the foreground region incorporates a second pattern of elements and is controlled to render the target color using a second set of color separation control data. The retrieved at least one character representation is assembled to form a variable data pantograph, whereby when the variable data pantograph is rendered in an original document, the foreground and background regions are similar in tone, the foreground and background regions being substantially less similar in tone in a copy of the original document to render the character visible. | 06-17-2010 |
20120024953 | DETECTION OF SECURITY MARKS SIMULATING NATURAL DEFECTS FOR EMBEDDING INFORMATION IN DOCUMENTS - A system for generating a security mark includes a data reception component that receives information. A security mark generation component in communication with the data reception component generates at least one security mark configuration based at least in part upon the received information. The at least one security mark configuration includes at least one simulation mark which resembles a natural feature. An application component applies one configuration of the at least one security mark configurations to a recipient. The applied security mark configuration obeys at least one rule whereby the security mark is distinguishable from the natural feature which it resembles by a system for detection of security marks. | 02-02-2012 |
20120107007 | SIMULATED PAPER TEXTURE USING CLEAR TONER ON UNIFORM SUBSTRATE - A system is adapted for simulating a textured pattern on a non-textured substrate. The system includes generating at least a first textured description in a controller unit operatively associated with at least one image forming apparatus. The first textured description is combined with at least one image of an original print job to generate a first print job. The first textured description is printed on at least one face of a substrate to provide a perceived first textured substrate. The at least one image is then printed on the perceived first textured substrate. | 05-03-2012 |
20120212753 | SIMULATED PAPER TEXTURE USING GLOSSMARK ON TEXTURE-LESS STOCK - A method for simulating a textured appearance on a uniform substrate includes using variable halftone dot orientations. A texture description is provided for generating electronic data representing a three-dimensional texture. Texture regions of the texture description are identified using pixel cells in the electronic data. Halftone dot orientations are assigned for each pixel cell based on a value of the pixel cell. The halftone dot orientation represents a recessed or a raised surface portion. | 08-23-2012 |
20120243009 | UV AND IR SPECIALTY IMAGING METHODS AND SYSTEMS - Disclosed are methods and systems of processing work flow associated with a print job including Specialty Imaging such as UV and/or IR encoding. According to one exemplary embodiment, a printing system controller accesses a spatially structured ink composed of a plurality of non-overlapping primitive spot colors to render Specialty Imaging effects along with other images and text associated with the print job. | 09-27-2012 |
20130022753 | SIMULATED PAPER TEXTURE USING CLEAR TONER AND GLOSSMARK ON TEXTURE-LESS STOCK - A method includes receiving a primary image as input data and receiving textured image data for rendering a perceived non-uniform texture on a printed output of the primary image. The primary image input data is used for determining a low coverage portion and a high coverage portion. The method then includes applying clear toner to the low coverage portion and applying colored toner at variable anisotropic orientations to the high coverage portion. | 01-24-2013 |