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Gangopadhyay, US

Avijit Gangopadhyay, North Dartmouth, MA US

Patent application numberDescriptionPublished
20100017176SYNTHETIC STRUCTURE FOR ASYMMETRIC EDDIES IN THE OCEAN - A system and method is provided for an asymmetric formulation whereby multiple water masses mix together and generate an ‘eddy-like’ feature. Given the core and the shore profiles, embodiments produce a three-dimensional eddy representation for a particular ocean region based on three (core, inshore and offshore) specified profiles. The formulation employs parameter-based feature models and is generalized to ocean regions having asymmetric eddy water masses. Embodiments apply to regions in the global coastal ocean, providing nowcasting and forecasting in any oceanic region where eddies are part of the overall circulation. Examples of such eddies are off of Cape São Tomé (CST) and Cape Frio (CF) along the southeastern coast of Brazil.01-21-2010

Dipayan Gangopadhyay, San Jose, CA US

Patent application numberDescriptionPublished
20100146006Information Extraction Across Multiple Expertise-Specific Subject Areas - Techniques are disclosed for bridging terminology differences between at least two subject areas. By way of example, a computer-implemented method includes executing the following steps on a computer. A first affinity measure is computed between a first term in a first corpus, corresponding to a first subject area, and a bridge term. A second affinity measure is computed between a second term in a second corpus, corresponding to a second subject area, and the bridge term. A third affinity measure is computed between the first term and the second term based on the first affinity measure and the second affinity measure. The bridge term is a term that appears in both the first corpus and the second corpus.06-10-2010
20100281455DETERMINING SYSTEM LEVEL DEPENDENCIES - Techniques for co-relating at least one of a functional design and at least one implementation artifact of a solution with at least one infrastructure component of a target deployment environment for the solution are provided. The techniques include obtaining at least one of a functional design and at least one implementation artifact of a solution, obtaining at least one infrastructure component of a target deployment environment for the solution, and co-relating at least one of a functional design and at least one implementation artifact of a solution with at least one infrastructure component of a target deployment environment for the solution, wherein co-relating comprises discovering at least one system level dependency among the at least one of a functional design and at least one implementation artifact and the at least one infrastructure component.11-04-2010

Keshab Gangopadhyay, Columbia, MO US

Patent application numberDescriptionPublished
20090014333AGAROSE NANO-PLATINUM COMPOSITE - The invention relates to compositions and methods of using electrophoresis separation matrices. The invention provides nano-particle comprising separation matrices having increased conductivity at low voltage.01-15-2009
20090105738DEVICE FOR TRANSFECTING CELLS USING SHOCK WAVES GENERATED BY THE IGNITION OF NANOENERGETIC MATERIALS - A miniature device for generating shock waves using the energy of combustion of a nanoenergetic material and directing the shock waves into biological tissues is described.04-23-2009
20090148910REUSABLE PCR AMPLIFICATION SYSTEM AND METHOD - A DNA amplification device utilizing a polydimethylsiloxane (PDMS) and silicon substrate coated with spin-on glass (SOG) is provided. This PDMS layer is irreversibly bonded to the SOG layer of the silicon substrate using oxygen plasma. The amplification device is an inexpensive, microfluidic device, which can be utilized as a portable thermo-cycler to perform PCR amplification of DNA in the field.06-11-2009
20090152873Shock Wave and Power Generation Using on-Chip Nanoenergetic Material - A method of generating power uses a nanoenergetic material. The nanoenergetic material comprising thermite is obtained and deposited on a substrate. An igniter is placed on the nanoenergetic material. When power is desired, the nanoenergetic material is ignited. A transducer receives thermal, sonic, magnetic, optic and/or mechanical energy from combustion of the nanoenergetic material and converts it into electrical energy. Preferably, the transducer is a thermoelectric, piezoelectric or magneto device. Preferably, multiple transducers are integrated in one power generators to maximize the power from nanoenergetic thermites.06-18-2009
20090221135Rapid Heating With Nanoenergetic Materials - The present process for rapidly heating and cooling a target material without damaging the substrate upon which it has been deposited. More specifically, target material is coated onto a first substrate. A self-propagating nanoenergetic material is selected that combusts at temperatures sufficient to change the target material and creates a flame front that propagates sufficiently quickly that the first substrate is not substantially heated. The nanoenergetic material is deposited on the target material, such that the target material and the nanoenergetic material is sandwiched between the substrate and the target material. The nanoenergetic material is ignited and the flame front of the nanoenergetic material is allowed to propagate over the second substrate and change the target material.09-03-2009
20090269016ULTRA-LOW REFRACTIVE INDEX HIGH SURFACE AREA NANOPARTICULATE FILMS AND NANOPARTICLES - Nanoparticles having a mean particle size of less than about 25 nanometers and a mean pore size of less than 10 nanometers, and a mean surface area of at least 500 m10-29-2009
20100279102Homogeneous mesoporous nanoenergetic metal oxide composites and fabrication thereof - The invention provides homogeneous mesoporous metal oxide nanoenergetic composites. A composite of the invention has a regular and uniform nanostructure of metal oxide, which is structured by a surfactant. Metal fuel nanoparticles are homogenously distributed through the regular and uniform nanostructure. The invention further provides methods for making homogeneous metal oxide nanoenergetic composites. A method of the invention forms a metal oxide nanostructure via a sol-gel process with surfactant templating. Metal nanoparticles into the metal oxide nanostructure via wet impregnation.11-04-2010
20110167795NANOTHERMITE THRUSTERS WITH A NANOTHERMITE PROPELLANT - In various embodiments, the present disclosure provides a thruster that utilizes a nanothermite material as a propellant. The thruster generally includes a body having at least one sidewall and a bottom wall that define a propellant chamber having a closed repulsion end and an opposing open exhaust end. The thruster additionally includes a nanothermite propellant configured within the propellant chamber to have a selected density that dictates a reaction propagation rate of the nanothermite propellant such that the reaction propagation rate will have a selected one of two distinctly different force-time profiles.07-14-2011
20120071682ORGANOSILICA NANOPARTICLES AND METHOD FOR MAKING - Preparation of Free-Flowing Organosilica Nanoparticles by Forming a solution of an organosilica nanoparticle precursor in a mixed solvent system comprising a first solvent and a second solvent, wherein the first solvent is different from the second solvent, wherein the second solvent has a boiling point which is greater than a boiling point of the first solvent, and wherein the nanoparticle precursor has a greater solubility in the first solvent than in the second solvent; removing at least 50% of the first solvent to form nanoparticles having a mean particle size less than about 25 nanometers dispersed in the solution; adding a coupling agent to the solution to facilitate reacting of the coupling agent with the nanoparticles; and recovering the nanoparticles from the solution, wherein the recovered nanoparticles have the mean particle size of less than about 25 nanometers03-22-2012

Patent applications by Keshab Gangopadhyay, Columbia, MO US

Palash Gangopadhyay, Tucson, AZ US

Patent application numberDescriptionPublished
20120043495MAGNETIC-CORE POLYMER-SHELL NANOCOMPOSITES WITH TUNABLE MAGNETO-OPTICAL AND/OR OPTICAL PROPERTIES - Methods are disclosed for synthesizing nanocomposite materials including ferromagnetic nanoparticles with polymer shells formed by controlled surface polymerization. The polymer shells prevent the nanoparticles from forming agglomerates and preserve the size dispersion of the nanoparticles. The nanocomposite particles can be further networked in suitable polymer hosts to tune mechanical, optical, and thermal properties of the final composite polymer system. An exemplary method includes forming a polymer shell on a nanoparticle surface by adding molecules of at least one monomer and optionally of at least one tethering agent to the nanoparticles, and then exposing to electromagnetic radiation at a wavelength selected to induce bonding between the nanoparticle and the molecules, to form a polymer shell bonded to the particle and optionally to a polymer host matrix. The nanocomposite materials can be used in various magneto-optic applications.02-23-2012
20120088159NANO-ARCHITECTURED CARBON STRUCTURES AND METHODS FOR FABRICATING SAME - In an exemplary method, a nano-architectured carbon structure is fabricated by forming a unit (e.g., a film) of a liquid carbon-containing starting material. A surface of the unit is nano-molded using a durable mold (04-12-2012

Shubhra M. Gangopadhyay, Lubbock, TX US

Patent application numberDescriptionPublished
20080197450AMORPHOUS CARBON METAL-TO-METAL ANTIFUSE WITH ADHESION PROMOTING LAYERS - A metal-to-metal antifuse having a lower metal electrode, a lower thin adhesion promoting layer disposed over the lower metal electrode, an amorphous carbon antifuse material layer disposed over the thin adhesion promoting layer, an upper thin adhesion promoting layer disposed over said antifuse material layer, and an upper metal electrode. The thin adhesion promoting layers are about 2 angstroms to 20 angstroms in thickness, and are from a material selected from the group comprising Si08-21-2008

Sunita Bhardwaj Gangopadhyay, Eden Prairie, MN US

Patent application numberDescriptionPublished
20120134057Magnetic Element with Improved Stability - A magnetic element capable of detecting changes in magnetic states, such as for use as a read sensor in a data transducing head or as a solid-state non-volatile memory element. In accordance with various embodiments, the magnetic element includes a magnetically responsive stack or lamination with a first areal extent. The stack includes a spacer layer positioned between first and second ferromagnetic free layers. At least one antiferromagnetic (AFM) tab is connected to the first free layer on a surface thereof opposite the spacer layer, the AFM tab having a second areal extent that is less than the first areal extent.05-31-2012