摘要:
An electrochemical piezoelectric sensor is disclosed. The sensor includes a piezoelectric substrate, three (or more) electrodes over a first surface of the substrate, and another electrode over a second (opposing) surface of the substrate. An ionic liquid in the form of a film is adhered, bound, immobilized, or otherwise positioned over the substrate and electrodes of the first surface. The ionic liquid film permits the absorption and detection of analytes from a gaseous sample, for environmental gases, example explosive vapors and/or explosive vapor species in the gaseous sample. Detection (optionally including analyte quantitation and qualitative identification) can be performed by both electrochemical and piezoelectric techniques using a single sensor. Systems incorporating and methods of using the electrochemical piezoelectric sensor also are disclosed.
摘要:
An electrochemical piezoelectric sensor is disclosed. The sensor includes a piezoelectric substrate, three (or more) electrodes over a first surface of the substrate, and another electrode over a second (opposing) surface of the substrate. An ionic liquid in the form of a film is adhered, bound, immobilized, or otherwise positioned over the substrate and electrodes of the first surface. The ionic liquid film permits the absorption and detection of analytes from a gaseous sample, for environmental gases, example explosive vapors and/or explosive vapor species in the gaseous sample. Detection (optionally including analyte quantitation and qualitative identification) can be performed by both electrochemical and piezoelectric techniques using a single sensor. Systems incorporating and methods of using the electrochemical piezoelectric sensor also are disclosed.
摘要:
FIG. 1 is a perspective view of an LED folding magnifier showing my new design; FIG. 2 is another perspective view thereof; FIG. 3 is a front elevational view thereof; FIG. 4 is a rear elevational view thereof; FIG. 5 is a left side elevational view thereof; FIG. 6 is a right side elevational view thereof; FIG. 7 is a top plan view thereof; FIG. 8 is a bottom plan view thereof; FIG. 9 is a perspective view of the LED folding magnifier where the LED folding magnifier is in a folded state; FIG. 10 is a perspective view of the LED folding magnifier where the LED folding magnifier is in a configuration of use; and, FIG. 11 is an enlarged view of portion 11 shown in FIG. 1. The dash-dash broken lines in the drawings depict portions of the LED folding magnifier that form no part of the claimed design. The dot-dash broken lines represent boundaries of the enlarged portion and form no part of the claimed design.
摘要:
A combined cycle propulsion system (CCPS) module combines a low-speed propulsion system (LSPS) such as a turbojet and a high-speed propulsion system (HSPS) such as dual mode ramjet engines with a mid-speed propulsion system (MSPS) such as a ejector ramjet engine to close a thrust gap between the upper operation limit of the LSPS and the lower operation limit of the HSPS in a flight vehicle. A cooling system ensures thermal protection of the non-operating LSPS during MSPS or HSPS operation by cooling tapped air from the MSPS or HSPS using a heat exchanger and expansion in a turbine/generator and directing cooled tapped air into the LSPS.
摘要:
A three-axis magnetic field sensing device, a magnetometer, and methods of fabricating and testing are presented. The magnetometer comprises a plurality of sloped surfaces. A plurality of magnetic sensing units is disposed on the slopes. A magnetic field can be measured by the sensing units. Each of the three orthogonal-axis components of the magnetic field, a Euclidean vector, can then be solved by using a simple algorithm as an expression of the sensing unit measurement values and slope angles. Polarization, testing and characterization of the device could be done by applying a magnetic field along a common axis to all sensing units, along which each sensing unit has sensitivity.
摘要:
Production of polycrystalline silicon in substantially closed-loop processes and systems is disclosed. The processes and systems generally involve disproportionation of trichlorosilane to produce silane or dichlorosilane and thermal decomposition of silane or dichlorosilane to produce polycrystalline silicon.
摘要:
Production of polycrystalline silicon in a substantially closed-loop process is disclosed. The processes generally include decomposition of trichlorosilane produced from metallurgical grade silicon.
摘要:
Production of polycrystalline silicon in substantially closed-loop processes and systems is disclosed. The processes and systems generally involve disproportionation of trichlorosilane to produce silane or dichlorosilane and thermal decomposition of silane or dichlorosilane to produce polycrystalline silicon.
摘要:
Production of polycrystalline silicon in a substantially closed-loop process is disclosed. The processes generally include decomposition of trichlorosilane produced from metallurgical grade silicon.
摘要:
A system for assessing reliability of a semiconductor product design, the system comprising a first database for storing circuits data specifying cells of available circuits for semiconductor products; an input unit for input of reliability qualification data of tested semiconductor products; an uploading unit for uploading semiconductor product design data; and a processor for processing the reliability qualification data to generate reliability data at a circuit-level, a cell-level, or both utilizing the circuits data, and for assessing the reliability of the semiconductor product design based on the generated reliability data.