Vorontsov
Evgeny Vorontsov, Moscow RU
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20150328169 | POLYMERIC PARTICLES-BASED TEMOZOLOMIDE DOSAGE FORM - The invention relates to pharmacology and medicine, and more specifically to slow-release antitumor drug composition based on biodegradable poly(lactic-co-glycolic acid) (PLGA). The composition comprises temozolomide (TMZ) as the active ingredient and comprises, in addition, surface-active material and a cryoprotectant as parts of nanoparticles. | 11-19-2015 |
Mikhail Vorontsov, Laurel, MD US
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20100027142 | Scalable-Size Deformable Pocket Mirror With On-Pocket Bimorph Actuator - The invention includes a deformable mirror for use in adaptive and active optical systems and in optical technology laser communication directed energy systems. The invention utilizes pockets formed in the back of the mirrors substrate. The pockets house actuators that are bonded to the substrate and may adjustably deform the mirror surface depending on the voltage supplied to the actuators. A plurality of mirrors may be combined to form a scalable array or positioned to overcome issues related to the uncontrollable portions of separate individual mirrors. | 02-04-2010 |
Mikhail A. Vorontsov US
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20110025919 | Automated Video Data Fusion Method - A method for mitigating image distortions induced by optical wave propagation through a random media (e.g., atmospheric turbulence or volume of water) from a stream of video data provided by a single shortexposure image sensor is described. The method is based on the two following sequential steps: (1) enhancement of the raw video stream and (2) fusion of the enhanced stream using the lucky region fusion (LRF) technique. The first step enhances features of the raw image stream the LRF method success is based on and especially mitigates the effect of low light level, aerosol pollution, dust, haze, and other deteriorating factors. The second step, fusion of the enhanced stream, is realized by sequentially merging image regions with highest quality within a temporal buffer into a single image before sliding the temporal window forward. The process is continuously repeated in order to generate a stream of fused images. The resulting fused stream hence has an image quality superior to that of any image within the buffer and demonstrates improved contrast as well as increased detail visualization. In addition, the disclosed invention offers a method for automated extraction of random media (atmospheric turbulence for example) characteristics needed for optimizing the LRF method performance. Based solely on analysis of the enhanced video stream, this has the advantage to eliminate the need for turbulence strength characterization devices (e.g., scintillometer) and it allows the invention to provide an optimal fused stream even when operating within an evolving environment. | 02-03-2011 |
Mikhail A. Vorontsov, Laurel, MD US
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20120224824 | COMPACT FIBER OPTIC POSITIONER WITH WIDE FREQUENCY BANDWIDTH - A device for the positioning of fiber optic output including a base having a hole disposed at a midpoint thereof, a collar having an opening at a midpoint, a plurality of bimorph actuators, each actuator connected to an outer side surface of the base and located at opposite ends, a plurality of flexible beams, each having a first end connected to the collar and a second end connected to a bimorph actuator, a flexible tube inserted in the hole, where a bottom end of the tube is cantilevered at a bottom of the base and a top end of the tube is inserted in the opening of the collar, and a fiber optic embedded in the flexible tube. | 09-06-2012 |
20130215527 | OPTICALLY UN-OBSCURED CONTROLLABLE MIRROR FOR HIGH-SPEED BEAM STEERING AND PHASE ABERRATION COMPENSATION - Apparatus for correcting a distorted incident wavefront are disclosed herein. In some embodiments, an apparatus may include a deformable mirror haying a first surface; a plurality of bimorph actuators coupled to an opposing second surface of the deformable mirror to tilt the deformable mirror with respect to a first plane; at least one mount to convert first motions of the plurality of bimorph actuators to tilt the deformable mirror with respect to the first plane; and an assembly disposed between the at least one mount and the second surface of the deformable mirror to decouple the first motions of the plurality of bimorph actuators from second motions in the deformable mirror that deform the first surface, wherein the plurality of bimorph actuators, the at least one mount, and the assembly have a combined footprint that is smaller than a surface area of the first surface of the deformable mirror. | 08-22-2013 |
Sergey Vorontsov, Moscow RU
Patent application number | Description | Published |
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20090041587 | TURBINE BLADE WITH INTERNAL COOLING STRUCTURE - A rotating blade ( | 02-12-2009 |
20090081027 | SEAL IN GAS TURBINE - A seal assembly for a gas turbine is arranged in grooves of a rotor heat shield having several bends. The assembly comprises four seal portions overlapping one another and extending in the axial, radial, and circumferential direction with respect to the turbine rotor. A holding means retains the radial sections of one seal portion allowing a limited movement of said seal portion independent of another seal portion. The independent movement assures contact of the individual seal portions with all mating surfaces of the rotor heat shield and improved sealing function regardless of displacements of the rotor heat shield and tolerances of turbine parts. | 03-26-2009 |
20090274552 | TURBO MACHINE AND GAS TURBINE - A gas turbine ( | 11-05-2009 |
20100047062 | STATOR HEAT SHIELD - A stator heat shield ( | 02-25-2010 |
20100111683 | FLUID FLOW MACHINE - A fluid flow engine ( | 05-06-2010 |
20100150710 | STATOR VANE FOR A GAS TURBINE ENGINE - A guide vane for a gas turbine includes a vane body having a leading edge and a trailing edge and a shroud extending at least between the leading edge and the trailing edge. The shroud has a first side wall and a second side wall extending essentially radially and in a longitudinal direction of the gas turbine. The first side wall has a groove disposed in a region of the trailing edge extending in a longitudinal direction of the shroud and is configured to receive a sealing plate. The first side wall also has a clearance extending from the groove in a region of the trailing edge, wherein a depth of the clearance in a circumferential direction of the gas turbine is equal to a depth of the groove, and wherein a width of the clearance in the longitudinal direction of the shroud is between one to three times the depth of the clearance. | 06-17-2010 |
20100150712 | HEAT SHIELD SEGMENT FOR A STATOR OF A GAS TURBINE - A gas turbine includes a turbine housing; a rotatable turbine rotor with turbine blades; and at least one heat shield segment for a stator. The heat shield segment is disposed radially between the rotor and the housing and attached to the housing and has a profile with a curved section in at least one region in an axial direction of the gas turbine and a radial outer surface. The heat shield segment includes a rib, a first boss, and a second boss disposed on the radial outer surface. | 06-17-2010 |