Search

Results 2226–2250 of 2,272

Voltage tunability of thermal conductivity in ferroelectric materials

Patent • #9,255,347. A method to control thermal energy transport uses mobile coherent interfaces in nanoscale ferroelectric films to scatter phonons. The thermal conductivity can be actively tuned, simply by applying an electrical potential across the ferroelectric material and thereby altering the density of these coherent boundaries to directly impact thermal transport...

Volume-scalable high-brightness three-dimensional visible light source

Patent • #8,653,500. A volume-scalable, high-brightness, electrically driven visible light source comprises a three-dimensional photonic crystal (3DPC) comprising one or more direct bandgap semiconductors. The improved light emission performance of the invention is achieved based on the enhancement of radiative emission of light emitters placed inside a 3DPC due to the strong...

VoroCrust v. 1.0

Featured Opportunity • VoroCrust v. 1.0 is one of the first fully automated Voronoi meshing software programs reliable enough for anyone to generate a mesh that conforms to a complex model without clipping—regardless of experience. While there are other meshing software programs currently on the market, VoroCrust is the only one that utilizes...

Vorocrust v1.0

Software • VoroCrust v. 1.0 is one of the first fully automated Voronoi meshing software programs reliable enough for anyone to generate a mesh that conforms to a complex model without clipping—regardless of experience.

Wafer scale micromachine assembly method

Patent • #6,332,568. A method for fusing together, using diffusion bonding, micromachine subassemblies which are separately fabricated is described. A first and second micromachine subassembly are fabricated on a first and second substrate, respectively. The substrates are positioned so that the upper surfaces of the two micromachine subassemblies face each other and...

Wafer scale oblique angle plasma etching

Patent • #9,659,797. Wafer scale oblique angle etching of a semiconductor substrate is performed in a conventional plasma etch chamber by using a fixture that supports a multiple number of separate Faraday cages. Each cage is formed to include an angled grid surface and is positioned such that it will be positioned...

Wafer-level packaging with compression-controlled seal ring bonding

Patent • #8,575,748. A device may be provided in a sealed package by aligning a seal ring provided on a first surface of a first semiconductor wafer in opposing relationship with a seal ring that is provided on a second surface of a second semiconductor wafer and surrounds a portion of the...

Water-Free Degradation of Organophosphates

Featured Opportunity • Chemical warfare agents (CWAs) present a threat to national security at home and abroad. Current methods to neutralize CWAs and organophosphates rely largely upon reactions in water-based conditions. Though broadly effective, water-based degradation techniques will corrode or short electrical circuitry, rendering contaminated mission-critical electronics inoperable. Researchers at Sandia National Laboratories...

Water-soluble titanium alkoxide material

Patent • #7,741,486. A water soluble, water stable, titanium alkoxide composition represented by the chemical formula (OC.sub.6H.sub.6N).sub.2Ti(OC.sub.6H.sub.2(CH.sub.2N(CH.sub.3).sub.2).sub- .3-2,4,6).sub.2 with a theoretical molecular weight of 792.8 and an elemental composition of 63.6% C, 8.1% H, 14.1% N, 8.1% O and 6.0% Ti.

Waterflooding injectate design systems and methods

Patent • #8,812,271. A method of designing an injectate to be used in a waterflooding operation is disclosed. One aspect includes specifying data representative of chemical characteristics of a liquid hydrocarbon, a connate, and a reservoir rock, of a subterranean reservoir. Charged species at an interface of the liquid hydrocarbon are determined...

Waterflooding injectate design systems and methods

Patent • #9,518,449. A method of recovering a liquid hydrocarbon using an injectate includes recovering the liquid hydrocarbon through primary extraction. Physico-chemical data representative of electrostatic interactions between the liquid hydrocarbon and the reservoir rock are measured. At least one additive of the injectate is selected based on the physico-chemical data. The...

Waveform frequency notching

Patent • #9,645,227. The various technologies presented herein relate to incorporating one or more notches into a radar spectrum, whereby the notches relate to one or more frequencies for which no radar transmission is to occur. An instantaneous frequency is monitored and if the frequency is determined to be of a restricted...

Waveform synthesis for imaging and ranging applications

Patent • #6,825,800. Frequency dependent corrections are provided for quadrature imbalance. An operational procedure filters imbalance effects without prior calibration or equalization. Waveform generation can be adjusted/corrected in a synthetic aperture radar system (SAR), where a rolling phase shift is applied to the SAR's QDWS signal where it is demodulated in a...

Waveform synthesis for imaging and ranging applications

Patent • #6,828,933. Frequency dependent corrections are provided for quadrature imbalance and Local Oscillator (LO) feed-through. An operational procedure filters imbalance and LO feed-through effects without prior calibration or equalization. Waveform generation can be adjusted/corrected in a synthetic aperture radar system (SAR), where a rolling phase shift is applied to the SAR's...

Waveform synthesis for imaging and ranging applications

Patent • #6,836,240. Frequency dependent corrections are provided for Local Oscillator (LO) feed-through. An operational procedure filters LO feed-through effects without prior calibration or equalization. Waveform generation can be adjusted/corrected in a synthetic aperture radar system (SAR), where a rolling phase shift is applied to the SAR's QDWS signal where it is...

Waveform warping for general frequency-modulated radar waveforms

Patent • #10,473,755. Various technologies pertaining to motion compensation for radar systems using FM waveforms are described herein. A waveform generator outputs a parametrized, pulsed FM waveform to a radar antenna, whereupon the radar antenna emits pulsed electromagnetic (EM) radiation into a target area based upon the parametrized FM waveform. The parametrized...

Waveguide device and method for making same

Patent • #7,256,667. A monolithic micromachined waveguide device or devices with low-loss, high-power handling, and near-optical frequency ranges is set forth. The waveguide and integrated devices are capable of transmitting near-optical frequencies due to optical-quality sidewall roughness. The device or devices are fabricated in parallel, may be mass produced using a LIGA...

Wavelength-doubling optical parametric oscillator

Patent • #7,248,397. A wavelength-doubling optical parametric oscillator (OPO) comprising a type II nonlinear optical medium for generating a pair of degenerate waves at twice a pump wavelength and a plurality of mirrors for rotating the polarization of one wave by 90 degrees to produce a wavelength-doubled beam with an increased output...

Wavelength-tunable optical ring resonators

Patent • #7,616,850. Optical ring resonator devices are disclosed that can be used for optical filtering, modulation or switching, or for use as photodetectors or sensors. These devices can be formed as microdisk ring resonators, or as open-ring resonators with an optical waveguide having a width that varies adiabatically. Electrical and mechanical...

Wavelength-tunable optical ring resonators

Patent • #7,983,517. Optical ring resonator devices are disclosed that can be used for optical filtering, modulation or switching, or for use as photodetectors or sensors. These devices can be formed as microdisk ring resonators, or as open-ring resonators with an optical waveguide having a width that varies adiabatically. Electrical and mechanical...

Weak-link capacitor

Patent • #7,955,945. A process for making a dielectric material where a precursor polymer selected from poly(phenylene vinylene) polyacetylene, poly(p-phenylene), poly(thienylene vinylene), poly(1,4-naphthylene vinylene), and poly(p-pyridine vinylene) is energized said by exposure by radiation or increase in temperature to a level sufficient to eliminate said leaving groups contained within the precursor polymer,...
Results 2226–2250 of 2,272