摘要:
An interactive user interface method for touch screen display devices begins with displaying a graphical user interface thereon. Upon receiving a touch input, a cursor preview window is generated in response, which includes a representation of a section of the graphical user interface proximal to the section obstructed by the touch input. Additionally, the cursor preview window includes a preview cursor that represents the location or coordinates that are registered as inputs to a data processing system connected to the touch screen display.
摘要:
The disclosure relates to a method for providing a logic circuit element. The method includes arranging a series of Josephson junctions between a first Josephson junction and a second Josephson junction, the first Josephson junction having a first critical current (I c1 ) and the second Josephson junction having a second critical current (I c2 ); providing a working current to the first Josephson junction, the working current transmitting to the second Josephson junction through the series of the Josephson junctions; wherein the working current is sufficiently high to trigger the second Josephson junction while sufficiently low to not disturb super-conductivity of the series of intermediate Josephson junctions.
摘要:
An enhanced biohazard detection system and a method for detecting, screening and analyzing biological agents are disclosed. The system incorporates an immunoassay detection device to provide a more robust, less expensive method for detecting biological agents in air samples collected at strategically located monitored sites. The immunodetection based assays may be used either in parallel with, or as a prescreening assay for, a polymerase chain reaction based assay for detecting and identifying biological agents in air samples.
摘要:
A gyroscope having photonic crystals for sensing rotation uses the Sagnac effect to determine angular motion. The gyroscope comprises a photonic crystal capable of guiding counter-propagating light beams in a closed path. A light source, coupling, and detection apparatus permits detection of phase changes between the counter-propagating beams, thereby permitting measurement of angular rotation. The photonic crystal comprises a periodic structure of pillars and voids which creates a photonic bandgap waveguide within which light waves in the proper wavelength range propagate with low loss.
摘要:
A fiber optic acoustic sensor that detects pressure waves from all incident angles features multiple mandrels orthogonally disposed to provide omni-directional sensing capability. The topology of the mandrels prevents frequency response drop-off characteristic of cylindrical sensors at wavelengths smaller than ? the length of the acoustic cylinder. The larger operating bandwidth and omni-directional sensing capability makes this fiber optic acoustic sensor a suitable choice for a wide range of applications.
摘要:
A semiconductor surface processing method in one example comprises disposing a polishing pad in rotating engagement with a semiconductor wafer to be polished, dripping a first polishing solution onto the polishing pad at a first drip rate, and, concurrently, dripping a second polishing solution onto the polishing pad at a second drip rate.
摘要:
A technique for providing high-contrast images of defects in solar cells and solar panels, by illuminating each cell under inspection with broadband infrared radiation, and then forming an image of radiation that is secularly reflected from the cell. Multi-junction solar cells have a metal backing layer that secularly reflects the illumination back into an appropriately positioned and aligned camera, selected to be sensitive to infrared wavelengths at which the solar cell materials are relatively transparent.
摘要:
A passive magnetic damper suitable for use as a vibration isolator coupled between two masses, one of which is subject to vibration. The damper includes at least two pairs (10, 12) of rare earth permanent magnets configured to provide a narrow, generally planar gap (14), and backing plates (26, 28) positioned to complete a magnetic circuit passing through the magnets and the gap. A flat conductor plate (16) is positioned to be freely movable in the gap. Any time-varying force on the conductor plate results in the generation of eddy currents in the plate, and these in turn generate a mechanical force on the plate, which resists the time-varying force and produces a damping effect. With careful selection of materials for the magnets, the backing plates and the conductive plate, the damper is effective over a wide temperature range that includes cryogenic temperatures, and is operable over a wide range of damping levels.
摘要:
A method and system for providing fast interrogation of a signal received from a fiber optic sensor array using a low drive voltage, by modulating the array signal with a phase generated carrier optical signal having a modulation frequency which is an odd harmonic of the usual phase generated carrier (PGC) frequency, sending it to an interferometric system, and demodulating the array signal using a demodulation algorithm that is independent of the phase offset. A detector using direct detection method can be used to determine the signal's phase information. The odd harmonic modulation method allows the selection of a desirable odd harmonic PGC frequency with low drive voltage while providing similar performance of the usual PGC frequency that requires a higher drive voltage.
摘要:
A MEMS mass spectrometer having metal walls connected between a lid and base, with the walls defining a plurality of interior chambers including sample gas input chambers, an ionizer chamber, a plurality of ion optics chambers and a ion separation chamber. A detector array at the end of the ion separation chamber includes a plurality of V-shaped detector elements positioned along two parallel lines and arranged to intercept all of the ionized beams produced in the mass spectrometer.