Patent application number | Description | Published |
20090196483 | Systems and Methods of Identifying Biomarkers for Subsequent Screening and Monitoring of Diseases - A system for generating an image of ultrastructural biomarkers from a biological sample is provided. The system includes a grid onto which a sample to be imaged may be placed and a cryogenic reservoir into which the grid and sample may be immersed for vitrification of the sample. The system also includes a stage onto which the grid and sample may be situated for subsequent imaging in a high contrast imager to permit identification of ultrastructural biomarkers therein. A method for generating an image of ultrastructural biomarkers from a biological sample is also provided. The generated image of ultrastructural biomarkers may be used subsequently for screening and monitoring diseases, evaluating drug and therapeutic efficacy, and assessing risks associated with a drug or therapeutic candidate, among other things. | 08-06-2009 |
20090196484 | Systems and Methods of Identifying Biomarkers for Subsequent Screening and Monitoring of Diseases - A system for generating an image of ultrastructural biomarkers from a biological sample is provided. The system includes a grid onto which a sample to be imaged may be placed and a cryogenic reservoir into which the grid and sample may be immersed for vitrification of the sample. The system also includes a stage onto which the grid and sample may be situated for subsequent imaging in a high contrast imager to permit identification of ultrastructural biomarkers therein. A method for generating an image of ultrastructural biomarkers from a biological sample is also provided. The generated image of ultrastructural biomarkers may be used subsequently for screening and monitoring diseases, evaluating drug and therapeutic efficacy, and assessing risks associated with a drug or therapeutic candidate, among other things. | 08-06-2009 |
20100216247 | Identification of Biomarkers for Screening and Monitoring of Prostate Cancer and Prostate Related Diseases - A system and method for determining presence of prostate cancer or prostate related diseases is provided. The method includes first obtaining a test sample from a test subject. Next, at least one ultrastructural biomarker indicative of prostate cancer within the sample may be identified. Thereafter, qualitative or quantitative data from the ultrastructural biomarker in the test sample can be obtained. The qualitative or quantitative data of the biomarker in the sample from the test subject can then be compared to that in a sample from a control subject for variations. The presence of qualitative and quantitative variations can act as a determinant for prostate cancer or prostate related diseases. | 08-26-2010 |
20110039692 | Nanocomposite Support Materials - The present teachings are directed toward hexagonally patterned porous titania synthesized from a titanium isopropoxide precursor using a viscous template of surface-active agents separating nanoscopic bicontinuous channels of water and isooctane. Subsequent catalyst metal salt reduction in the aqueous nanochannels deposits well-separated catalyst metal nanoparticles on the pore surfaces. These nanocomposites exhibit significantly higher carbon monoxide oxidation efficiency than that obtained with known supports with higher specific surface area; efficiency is believed to be due to decreased mass transfer resistance provided the presently disclosed support material. | 02-17-2011 |
20110316189 | SELF-MENDING COMPOSITES INCORPORATING ENCAPSULATED MENDING AGENTS - A cement mixture is disclosed that includes an aqueous mending agent that is disbursed within but isolated from the cement mixture, wherein the aqueous mending agent will form molecular bonds with hardened cement that is formed by the cement mixture when the mending agent is permitted to flow within the hardened cement. | 12-29-2011 |
20120241607 | MICROFLUIDIC BLOTLESS CRYO TEM DEVICE AND METHOD - A method and system is provided for automatically preparing transmission electron microscopy (TEM) samples for examination by depositing extremely small samples onto a grid without need for a blotting step. A sample liquid droplet is formed at the end of a capillary, wherein a portion of the liquid is transferred to the TEM sample grid by contact. The excess volume in the liquid droplet is then retracted by an adjacent capillary. After a predetermined time interval, the retraction capillary is moved toward the drop of the sample to remove the excess volume. As compared to a conventional machine, where the blotting procedure can deform the structure of the molecule of interest, the present invention utilizes a very low shear rate for removal of the excess sample fluid. | 09-27-2012 |
20140120339 | POROUS CARBON MONOLITHS TEMPLATED BY PICKERING EMULSIONS - Porous carbon monoliths are prepared using emulsions stabilized by carbonaceous particles or aggregates. An illustrative porous carbon monolith comprises carbon black, including any graphitized carbon black particles, carbonized binder and porosity. The porosity includes first pores having a pore size within the range of from about 0.5 μm to about 100 μm and second pores having a pore size within the range of from about 1 nm to about 100 nm. The pore size distribution of the first pores does not overlap with a pore size distribution of the second pores. | 05-01-2014 |
20140166575 | OIL EMULSIFICATION AND POLYCYCLIC AROMATIC HYDROCARBON ADSORPTION USING FINE PARTICLES AS DISPERSANTS - A method for cleaning an oil spill in a marine environment includes forming a particle-stabilized emulsion containing seawater, carbon black and at least one oil spill component and allowing the at least one oil spill component to degrade, thereby removing said component from the marine environment. Carbon black can be added to an oil-seawater mixture to form a stabilized emulsion containing at least one oil spill component and the oil spill component allowed to degrade, thereby removing the at least one oil spill component from the oil spill. Also disclosed is an emulsion that includes one or more oil spill components, seawater and carbon black particles. | 06-19-2014 |
Patent application number | Description | Published |
20100157731 | AUTOMATIC DISPERSION EXTRACTION OF MULTIPLE TIME OVERLAPPED ACOUSTIC SIGNALS - Slowness dispersion characteristics of multiple possibly interfering signals in broadband acoustic waves as received by an array of two or more sensors are extracted without using a physical model. The problem of dispersion extraction is mapped to the problem of reconstructing signals having a sparse representation in an appropriately chosen over-complete dictionary of basis elements. A sparsity penalized signal reconstruction algorithm is described where the sparsity constraints are implemented by imposing a l | 06-24-2010 |
20100177594 | ATTENUATION OF UNWANTED ACOUSTIC SIGNALS BY SEMBLANCE CRITERION MODIFICATION - Methods and related systems are described for modified semblance criterions based on the approach of thresholding the signal energy. A first criterion is derived by posing the problem as that of detecting a signal with energy (or amplitude) greater than the specified threshold and deriving the generalized likelihood ratio test statistic. A second criterion is derived using the same method by posing the problem as that of rejecting any signal with energy (or amplitude) below a specified threshold and detecting it if its energy is above another threshold greater than or equal to the first. These appropriately modify the original semblance criterion which is shown to be equivalent to the GLRT test statistic in the absence of any threshold on the signal amplitude. In addition simpler modifications are also described. Tests on synthetic data illustrate the effectiveness of all these modifications which perform comparably well at suppressing unwanted arrivals while accurately processing the desired signals. | 07-15-2010 |
20100202252 | MULTI-MODE DOWNHOLE ACOUSTIC SOURCE - A multimode acoustic source device for disposition in a borehole formed in a subterranean formation is aligned along an axial axis of the borehole and has a plurality of radiating plates circumferentially disposed about the axial axis. A drive mechanism is proposed to independently and reversibly move each radiating plate from a first position to a second position in a direction transverse to the axial axis. This enables the multimode source to generate each of several azimuthal modes for logging a subterranean formation. | 08-12-2010 |
20100228530 | PROCESSING TIME SERIES DATA EMBEDDED IN HIGH NOISE - Automatic detection and accurate time picking of weak events embedded in strong noise such as microseismicity induced by hydraulic fracturing is accomplished by: a noise reduction step to separate out the noise and estimate its spectrum; an events detection and confidence indicator step, in which a new statistical test is applied to detect which time windows contain coherent arrivals across components and sensors in the multicomponent array and to indicate the confidence in this detection; and a time-picking step to accurately estimate the time of onset of the arrivals detected above and measure the time delay across the array using a hybrid beamforming method incorporating the use of higher order statistics. In the context of hydraulic fracturing, this could enhance the coverage and mapping of the fractures while also enabling monitoring from the treatment well itself where there is usually much higher and spatially correlated noise. | 09-09-2010 |
20110172921 | METHODS AND APPARATUS TO PROCESS MEASUREMENTS ASSOCIATED WITH DRILLING OPERATIONS - Methods and apparatus to process measurements associated with drilling operations are described. An example method of modifying processing results during a subterranean formation drilling operation includes identifying a plurality of parameters and processing measurements associated with the subterranean formation obtained while drilling and the plurality of parameters to generate first results. Additionally, the example method includes processing measurements associated with the subterranean formation obtained while drilling is temporarily suspended and the plurality of parameters to generate second results and comparing the first and second results. Further, the example method includes, in response to the comparison of the first and second results, modifying the first results based on the second results to improve a quality of the first results. | 07-14-2011 |
20120201096 | Methods and Apparatus to Process Time Series Data for Propagating Signals in A Subterranean Formation - Methods and apparatus to process time series data for propagating signals in a subterranean formation are disclosed. An example method described herein for processing measured data comprises receiving a time series of measured data obtained by sensing a propagating signal, the propagating signal having passed through a subterranean formation, transforming the time series of measured data to generate a time-frequency representation of the time series, and processing the time-frequency representation to at least one of reduce noise in the time frequency representation, or enhance a component of the propagating signal present in the time-frequency representation. | 08-09-2012 |
20120307596 | SYSTEMS, METHODS, AND APPARATUS TO DRIVE REACTIVE LOADS - Systems, methods, and apparatus to drive reactive loads are disclosed. An example apparatus to drive a reactive load includes a reactive component in circuit with the reactive load, a first switching element in circuit with the reactive load to selectively hold the reactive load in a first energy state and to selectively allow the reactive load to change from the first energy state to a second energy state, a second switching element in circuit with the reactive load to selectively hold the reactive load in the second energy state and to selectively allow the reactive load to change from the second energy state to the first energy state, and a controller to detect a current in the reactive load, and to control the first and second switching elements to hold the reactive load in the first or the second energy state when the current traverses a threshold. | 12-06-2012 |
20130114376 | AUTOMATIC DISPERSION EXTRATION OF MULTIPLE TIME OVERLAPPED ACOUSTIC SIGNALS - Slowness dispersion characteristics of multiple possibly interfering signals in broadband acoustic waves as received by an array of two or more sensors are extracted without using a physical model. The problem of dispersion extraction is mapped to the problem of reconstructing signals having a sparse representation in an appropriately chosen over-complete dictionary of basis elements. A sparsity penalized signal reconstruction algorithm is described where the sparsity constraints are implemented by imposing a l | 05-09-2013 |
20130238248 | Methods and Apparatus for Waveform Processing - Methods and apparatus for waveform processing are disclosed. An example method includes determining shrinkage estimators in a Discrete Radon transform domain based on semblance of waveform data and de-noising the waveform data using a processor and the shrinkage estimators to enable the identification of weak signals in the waveform data. | 09-12-2013 |
20130345984 | Methods and Apparatus to Process Measurements Associated with Drilling Operations - Methods and apparatus to process measurements associated with drilling operations are described. An example method of modifying processing results during a subterranean formation drilling operation includes identifying a plurality of parameters and processing measurements associated with the subterranean formation obtained while drilling and the plurality of parameters to generate first results. Additionally, the example method includes processing measurements associated with the subterranean formation obtained while drilling is temporarily suspended and the plurality of parameters to generate second results and comparing the first and second results. Further, the example method includes, in response to the comparison of the first and second results, modifying the first results based on the second results to improve a quality of the first results. | 12-26-2013 |
20140169130 | Methods and Apparatus for Waveform Processing - Methods and apparatus for waveform processing are disclosed. An example method includes representing waveform data using space time propagators in the Discrete Radon Transform Domain. The method also includes identifying signals within the represented waveform data using a Sparisty Penalized Transform. | 06-19-2014 |
20140192619 | TORSIONAL WAVE LOGGING - A method for torsional wave logging in a borehole of a subterranean formation. The method includes obtaining a torsional wave measurement of the borehole, wherein the torsional wave measurement represents characteristics of a torsional wave propagating within a cylindrical layered structure associated with the borehole, wherein the cylindrical layered structure comprises the subterranean formation and a completion of the borehole, analyzing, by a computer processor, the torsional wave measurement to generate a quality measure of the completion, and displaying the quality measure of the completion. | 07-10-2014 |
Patent application number | Description | Published |
20090067286 | DISPERSION EXTRACTION FOR ACOUSTIC DATA USING TIME FREQUENCY ANALYSIS - This invention pertains to the extraction of the slowness dispersion characteristics of acoustic waves received by an array of two or more sensors by the application of a continuous wavelet transform on the received array waveforms (data). This produces a time-frequency map of the data for each sensor that facilitates the separation of the propagating components thereon. Two different methods are described to achieve the dispersion extraction by exploiting the time frequency localization of the propagating mode and the continuity of the dispersion curve as a function of frequency. The first method uses some features on the modulus map such as the peak to determine the time locus of the energy of each mode as a function of frequency. The second method uses a new modified Radon transform applied to the coefficients of the time frequency representation of the waveform traces received by the aforementioned sensors. Both methods are appropriate for automated extraction of the dispersion estimates from the data without the need for expert user input or supervision | 03-12-2009 |
20090238037 | RADIAL PROFILING OF SLOWNESS: METHODS AND APPARATUS FOR NEAR-WELLBORE ALTERATION ESTIMATION - A method facilitating radial profiling of acoustic slowness of a formation traversed by a borehole is disclosed. According to some aspects of the invention, a 3D image of near, far, and intermediate formation slowness is provided. | 09-24-2009 |
20140125384 | Systems, Methods, and Apparatus to Drive Reactive Loads - Systems, methods, and apparatus to drive reactive loads are disclosed. An example apparatus to drive a reactive load includes a reactive component in circuit with the reactive load, a first switching element in circuit with the reactive load to selectively hold the reactive load in a first energy state and to selectively allow the reactive load to change from the first energy state to a second energy state, a second switching element in circuit with the reactive load to selectively hold the reactive load in the second energy state and to selectively allow the reactive load to change from the second energy state to the first energy state, and a controller to detect a current in the reactive load, and to control the first and second switching elements to hold the reactive load in the first or the second energy state when the current traverses a threshold. | 05-08-2014 |
Patent application number | Description | Published |
20080220764 | Home Base Station - In some aspects, a method includes determining a location of the home base station. The method also includes determining if the communication carrier has a spectrum license in the determined location. If the communication carrier does not have a spectrum license in the determined location, the method also includes leasing a portion of a frequency spectrum from another carrier that has a spectrum license in the determined location. | 09-11-2008 |
20080220768 | VPN for Home Base Station Communications - In some aspects, a method includes establishing a virtual private network (VPN) connection between a home base station and a base station controller, the home base station and the base station controller communicatively coupled by the internet. The method also includes downloading software from the base station controller to the home base station using the VPN connection. | 09-11-2008 |
20080220779 | Configuration of a Home Base Station - In some aspects, a method includes determining a location of the home base station. The method also includes generating a neighbor list that includes at least some cellular base stations within an operating range of the home base station. The method also includes using the neighbor list to hand-off mobile communications from the home base station to one of the cellular base stations included in the neighbor list based on a location of the mobile device. | 09-11-2008 |
20080220795 | Home Base Station Position Determination - In some aspects, a method includes receiving at a home base station broadcast signals from a broadcaster, the broadcast signals including at least one of audio content and visual content. The method also includes determining a location of the home base station based on the received broadcast signals and configuring the home base station to send signals to and receive signals from one or more mobile devices. | 09-11-2008 |
20090238118 | REDUCING COST OF CELLULAR BACKHAUL - Methods and systems for reducing the cost of cellular backhaul are disclosed. | 09-24-2009 |
20140237547 | SPECTRUM ACCESS SYSTEM - A method for dynamically managing spectrum access and supporting multiple tiers of users is provided. A spectrum access server receives a request from a device to access a segment of spectrum, and determines which tier of the multiple tiers is associated with the request. If the request is from a second tier user and the request does not interfere with first tier users, the request is granted. If the request is from a third tier user and the request does not interfere with first tier users and authorized second tier users, the request is granted. | 08-21-2014 |