Method And Device For Biochemical Sensing

Medical diagnostics using chemical sensing of antibody, antigens, DNA fragments and other biochemicals are addressed using semiconductor sensors and supportive biochemical processes. This successful marriage of semiconductor sensors and biochemistry.....

Ventilating Roofing System

The ventilating roofing system comprises a plurality of modular vent tile units capable of being connected together in generally overlapping patterns. The ventilating roofing system is capable of conforming to a wide variety of roof shapes and to serve as ...

Active Composite Panel Smart Structures with Simultaneous Precision Positioning and Vibration Control

Active Composite Panels (ACPs) are used in form of beams and plates to provide precision positioning, vibration suppression and control, or both at the same time, i.e. simultaneous precision positioning and vibration control. Depending on the applications and needs...

Double-grating Sagnac Fourier Transform Spectrometer

Researchers in the University of Hawaii's Free-Electron Laser Group have developed a Fourier transform spectrometer based on a modified Sagnac interferometer. The instrument uses two gratings as dispersive elements to greatly improve the spectral resolution...

Bionest Reactor for the Application of Anaerobic Wastewater Treatment and Bioenergy Recovery

Water pollution control due to runoff from agricultural feeding operations is huge problem nationwide. In the United States, the U.S. Environmental Protection Agency (EPA) and U.S. Department of Agriculture (USDA) are working together to improve America’s waters.

Expandable Braced Structure

Building structures are typically built by lifting relatively small components from ground level and fixing them above previously placed components. However, substantial time and cost savings are often achieved by using methods that are more systematic than is typical.

Method of Imaging with Light Wavelength 157nm

In semiconductor manufacturing, major process steps are involved increasing the opportunity for defects. According to industry experts, the semiconductor industry looses an estimated $200 million each year due to photomask damage. This problem is made worse every time the design rules are shrunk.

Hybrid Solid-State/Electrochemical Photoelectrode for Hydrogen Production

Fossil fuels provide about 85% of the world’s energy but scientists have been trying to find alternative energy sources for decades because of the attendant environmental problems and the increasing costs of exploration and production associated with fossil fuels. Adding to these problems...

Multipath Propagation in Wireless Radio Communications Using a Phase Retrodirective Antennna

Multipath propagation is used to form a wireless radio communication channel. A key component in the method is the use of a retrodicrective antenna as one of the antennas. The other antenna, in this point-to-point communication system, is a wide beam receiving and transmitting antenna.

A Green Technology to Produce Biodegradable Thermoplastics and Elastomers from Organic Wastes

A novel green technology has been developed to produce polyhydroxyalkanoates (PHA) -- a type of truly biodegradable thermoplastic -- from organic wastes, such as food scraps or agricultural by-products. This technology has been demonstrated in laboratory bench scale...

Process for Charcoal Production

The process employs a combination of temperature and pressure along with an electric or natural gas heat source to convert nearly all kinds of plant-derived biomass into high-quality charcoal at conversion yields of 40% to 60% and in time periods of of less than 30 minutes.

Silicon-Micromachined Piezoelectric Bimorph Acoustic Transducer

The idea of using a bimorph structure for a micromachined piezoelectric acoustic transducer on parylene diaphragm has been invented and tested. Both the sensitivity and signal-to-noise ratio of the bimorph, parylene-diaphragm microphone have been demonstrated to be much higher...

Three-dimensional Architecture for Solid State Radiation Detectors

A new architecture for solid-state radiation detectors has been developed that combines VLSI fabrication technology with tools and techniques from the growing field of micro-machining to create a three-dimensional array of electrodes which penetrates into the substrate bulk.

Stress Induced Voltage Fluctuation for Measuring Stress and Strain in Materials

The invention represents a novel electronic technique that detects stress/strain in a wide variety of conductive and semi-conductive materials. The technique may be used with a strain gauge or by making measurements directly in the material or component of interest...

Self-Limiting Isotropic Wet Etching Technique with a Tape as an Etch Mask for the Fabrication of Micromachined Devices and Semiconductor Devices

A novel process for fabricating micromachined devices and semiconductor devices has been developed at the College of Engineering of the University of Hawaii. The process uses isotropic etching to form structures on substrates such as silicon, glass or metal....

Parylene Micromachined Piezoelectric Acoustic Transducers on Silicon Substrate

A new type of micromachined acoustic transducers, parylene micromachined piezoelectric acoustic transducers, has been developed and tested for use as microphones and microspeakers. The parylene diaphragms have about 100 times lower stiffness than silicon nitride...

Microelectromechanical Wireless/RF Components

Microelectromechanical System (MEMS) devices provide many advantages over conventional devices because of their unique actuation, miniature and integration features. The device sizes are usually in the range from 10mm to 1mm and the thickness of moveable parts...

Process for Alkane-Group Dehydrogenation with Organometallic Catalysts

Researchers at the University of California and the University of Hawaii have synthesized a new family of novel, organometallic dehydrogenation catalysts exhibiting exceptional thermal stability and high turnover rates.

A Novel Acoustic Wave Micromixer

The acoustic wave “micromixer” is based on micro-electromechanical systems (MEMS) technology that uses acoustic energy to mix and/or transport accurately controlled amounts of fluid in a reasonable amount of time.

Method of Using DC Photocurrent Measurements to Sense Wavelength or Color of Light or to Characterize Semiconductor Materials

A novel method has been developed to characterize specific material properties of semiconductors by using DC photocurrents produced in a photodetector. The method also permits determination of the wavelength or the color of incident light.

Silicon Chip Color Spectrometers: Integrated Microspectrometers for Optical Spectroscopy and General Wavelength Division Management Applications

These optical systems span diverse optical microspectrometer and wavelength-division applications. The spectrometers separate optical energy according to wavelength in a manner enabling of general spectroscopy, general wavelength division demultiplexing applications and optical system integration.

A Process for Preparing 'Melt-Textured Growth' YBCO High Temperature Superconductors at Temperatures Below the Melting Point of Silver

A low temperature melt-textured growth (MTG) process for bulk Yttrium-Barium-Copper-Oxide (YBCO) below the melting point of silver (960 degC). The inventors have been able to melt starting precursors at 950 degC with the resulting product being YBCO with...

Functional Memory Custom Computing Machine (FMCCM)

The FMCCM implements and combines ideas from Field Programmable Gate Array (FPGA) Custom Computing Machines (FCCMs), reduced instruction set computing (RISC) and spreadsheet (tabular) programming. The FMCCM approach differs from others in that it follows the conventional...