Abdollahi
Ali Abdollahi, Storrs, CT US
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20130173189 | ROBUST HIGH RESOLUTION SPECTRUM ESTIMATION METHOD FOR ACCURATE PHASOR, HARMONIC AND INTERHARMONIC MEASUREMENT IN POWER SYSTEMS - A high-resolution Subspace-Least Mean Square (S-LMS) method for harmonic and interharmonic measurement in power systems is provided. The eigenvector corresponding to the smallest eigenvalue is used to calculate the frequencies of the signal, and the least mean square method is used to estimate the amplitude and phase angle of harmonic and interharmonic components based on the computed frequencies and time domain measurements of the signal. Three schemes, namely sparsity, catch-and-pinpoint, and hybrid are presented. The S-LMS method provides accurate phasor, harmonic and interharmonic measurements for power system monitoring. The speed, accuracy, and resilience of the S-LMS method can be further increased by each of the three schemes. The method has a wide range of applications in power quality analyzers, synchronized phasor measurement, situational awareness, dynamic equivalencing, and smart meters. | 07-04-2013 |
Amir Abdollahi, Heidelberg DE
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20140155458 | Compositions and Methods for Treating Neoplasia - The invention features compositions comprising microRNAs that are differentially regulated in dormant versus fast growing neoplasias, and related methods of using the microRNAs for inducing or prolonging dormancy in a neoplastic cell or otherwise inhibiting the growth of a neoplastic cell. | 06-05-2014 |
20140302026 | MEANS AND METHODS FOR TREATING ANGIOGENESIS-RELATED DISEASES - The present invention is concerned with a protein oligomer comprising at least two NC-1 monomers of human collagen 18 or fragments of an NC-1 monomer of human collagen 18 for use in the treatment or prevention of an angiogenesis-related disease. The invention further pertains to a fusion protein comprising a NC-1 monomer of human collagen 18 and a Fc domain of an immunoglobulin. The invention also relates to a fusion protein comprising: a) an endostatin peptide or endostatin-derived peptide and b) the RGD motif and/or PHSRN motif of Fibronectin. The invention further relates to a kit comprising the protein oligomer or fusion proteins of the invention. | 10-09-2014 |
Farnaz Abdollahi, Chicago, IL US
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20150374563 | BODY SIGNAL CONTROL DEVICE AND RELATED METHODS - A method for controlling a powered wheelchair is disclosed. The method may comprise receiving first information from at least one user sensor coupled to a user of the wheelchair, said first information indicating the movement of the user; receiving second information from a reference sensor coupled to the wheelchair, said second information indicating the movement of the wheelchair; using the first information and the second information to prepare at least one instruction to move the wheelchair; and using the at least one instruction to move the wheelchair. | 12-31-2015 |
Hamid Abdollahi, Vancouver CA
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20120235902 | CONTROL SYSTEMS AND METHODS FOR HEAD-MOUNTED INFORMATION SYSTEMS - A head-mounted information system is provided, the head-mounted information system comprising a frame configured to be mounted on a head of a user, a display unit coupled to the frame, a sensor unit coupled to the frame comprising one or more motion sensors, and, a processor unit coupled to the frame and connected to receive signals from the motion sensors. The processor unit comprises a processor and a memory accessible by the processor. The processor unit is configured to monitor the received signals and enter a gesture control mode upon detection of a gesture control enable signal. In the gesture control mode the processor is configured to convert signals received from the motion sensors into menu navigation commands. | 09-20-2012 |
20130044043 | HEAD MOUNTED INFORMATION SYSTEMS AND RELATED METHODS - A head mounted information system comprises a frame configured to be worn by a user, a sensor unit coupled to the frame, and a processor unit coupled to the frame. The processor unit is connected to receive signals from the sensor unit. The sensor unit comprises a gyroscope configured to produce angular velocity signals representing a head angular velocity about a generally horizontal axis oriented generally perpendicular to a direction the user is facing when the user is wearing the frame. The processor unit is configured to detect a jump by the user based on the angular velocity signals received from the sensor unit and generate a jump output signal indicting one or more jump parameters. A display unit may also be coupled to the frame to display the jump parameters to the user. | 02-21-2013 |
20130222213 | MODULAR HEADS-UP DISPLAY SYSTEMS - A Heads-Up Display (HUD) system for mounting on a pair of goggles comprises a processing unit configured to be coupled to a strap of the goggles, a display unit connectable to the processing unit and comprising a display configured to display images under control of the processing unit, and a display mount configured to be coupled to the goggles and adjustably receive the display unit. | 08-29-2013 |
20130222235 | GAZE DETECTING HEADS-UP DISPLAY SYSTEMS - A display system for a head-mounted device comprising a display for displaying information. The display system includes a glance detector comprising a light source, disposed proximate the display, for transmitting light toward an eye of a user of the head-mounted device, a light detector, disposed proximate the light source, for detecting light reflected from the eye of the user and generating a voltage based on the detected light. The display system also includes a processor operably coupled to the display, and the gaze detector and configured to control the display to turn-on the display based on the voltage received from the glance detector. | 08-29-2013 |
20140130241 | RETRACTABLE DISPLAYS FOR HELMETS - The present invention relates to a helmet that includes an outer shell, a heads-up information system that comprises a display, and an attachment assembly. The heads-up information system is movable from a storage position within the outer shell to a use position in which the display of the heads-up information system is visible by a user, without obstructing the field of vision of the user, when the helmet is worn by the user. The attachment assembly is coupled to outer shell and the heads-up information system, and is operable to move the heads-up information system between the storage position and the use position. | 05-15-2014 |
20140139407 | MODULAR HEADS-UP DISPLAY SYSTEMS - A Heads-Up Display (HUD) system comprises a processor, a power source, and one or more sensors coupled to a frame connector. The processor is configured to receive signals from the one or more sensors and output image data. A display is mounted on a display arm extending from the frame connector. The display is configured to display images based on the image data. A goggles frame is configured to releasably receive the frame connector. The display is located within a field of view of a user wearing the goggles frame when the frame connector is received by the goggles frame. | 05-22-2014 |
20150177521 | HEADS UP DISPLAY SYSTEMS FOR GLASSES - A Heads-Up Display (HUD) system for mounting on a pair of glasses comprises a power module for providing electrical power removably mountable to one side of a lens assembly of the glasses, an electronics module connectable to receive electrical power from the power module, the electronics module removably mountable to an opposite side of the lens assembly of the glasses; and a display housing mounted on a display arm extending from the electronics module to a position within a field of vision of a user wearing the glasses. A pair of glasses adapted to receive a HUD system comprises a lens assembly providing one or more electrically conductive paths from a first side thereof to a second side thereof. | 06-25-2015 |
20150378432 | GAZE DETECTING HEADS-UP DISPLAY SYSTEMS - A display system for a head-mounted device comprising a display for displaying information. The display system includes a glance detector comprising a light source, disposed proximate the display, for transmitting light toward an eye of a user of the head-mounted device, a light detector, disposed proximate the light source, for detecting light reflected from the eye of the user and generating a voltage based on the detected light. The display system also includes a processor operably coupled to the display, and the gaze detector and configured to control the display to turn-on the display based on the voltage received from the glance detector. | 12-31-2015 |
Jafar Abdollahi, Trondheim NO
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20130292183 | CENTRALIZER - A centralizer includes a centralizer body to be situated at the outer surface of a pipe string in the form of casing, liner, or the like used while drilling, the centralizer body being formed with a plurality of outer centralizer blades arranged in an inclined manner to the longitudinal axis thereof, wherein the centralizer body has an separate split inner tube secured to the pipe string by means of a press fit, and low friction inner surface of the centralizer body and separate center tube facing each other are made from low friction material. | 11-07-2013 |
20140034391 | METHOD AND APPARATUS FOR DRILLING AND LINING A WELLBORE - Apparatus for drilling and lining a wellbore is described herein. A method of drilling and lining a wellbore is also described herein. A liner hanger is provided, secured in use on a liner. The liner hanger is operable selectively to be set and unset. The liner hanger is adapted to support the liner within an existing casing when set and to release the liner from the casing when unset. A liner hanger setting tool is provided, secured in use on a drill string. The liner hanger setting tool is actuatable selectively to set and unset the liner hanger. The liner hanger setting tool is operable selectively to be activated and deactivated. The liner hanger setting tool is adapted to attach to the liner and/or liner hanger when activated, to support the liner, and to release from the liner and/or liner hanger when deactivated. The method comprises the following steps: (a) setting the liner hanger by actuating the liner hanger setting tool; (b) deactivating the liner hanger setting tool; (c) extending the borehole using the drill string; (d) returning the drill string to its position at the setting step or the deactivating step; (e) activating the liner hanger setting tool; (f) unsetting the liner hanger by actuating the liner hanger setting tool; and (g) lowering the liner down the extended borehole on the drill string. | 02-06-2014 |
Mohammad Abdollahi, Tehran IR
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20130102027 | METHOD FOR DETECTING CANCER CELLS USING VERTICALLY CARBON NANOTUBES - The various embodiments herein provide a method for detecting the cancerous cells using the carbon nanotubes. The method comprises preparing a solution of the tissue cells. The prepared solution of the tissue cells is poured on a fabricated substrate to carry out an entrapment of the tissue cells on the substrate. The substrate is dried after the entrapment in an air ambient and observed under a scanning electron microscope. The cancer cell is detected based on the biomechanical properties such as softness, deformability and an elasticity of the cancer cells. The cancer cell is detected based on the deflection of the substrate due to the entrapment of the cancer cells. | 04-25-2013 |
Rohollah Abdollahi, Qom IR
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20140218982 | T-Connected Autotransformer-Based 40-Pulse AC-DC Converter for Power Quality Improvement - Design of a T-connected autotransformer based 20-pulse ac-dc converter is presented in this invention. The 20-pulse topology is obtained via two paralleled ten-pulse ac-dc converters each of them consisting of a five-phase (five-leg) diode bridge rectifier. For independent operation of paralleled diode-bridge rectifiers, a zero sequence blocking transformer (ZSBT) is designed and implemented. Connection of a tapped inter-phase transformer (IPT) at the output of ZSBT results in doubling the number of output voltage pulses to 40. Experimental results are obtained using the designed and constructed laboratory prototype of the proposed converter to validate the design procedure and the simulation results under varying loads. The VA rating of the magnetic in the proposed topology are calculated to confirm the savings in space, volume, weight, and cost of the proposed configuration. | 08-07-2014 |