Abstract:
A multiphase meter for use in the quantification of the individual phase fractions of a multiphase flow has: a resonant cavity through which, in use, a multiphase fluid flows, a signal generator configured to apply electromagnetic energy at a range of frequencies to the cavity, and an enhancing and / or suppressing facility for enhancing and / or suppressing resonant modes of a signal produced resultant to the application of electromagnetic energy to the cavity.
Abstract:
The present invention relates to valved cryogenic refrigerators, in particular, Gifford McMahon (GM) refrigerators, and GM type pulse tube refrigerators where gas is cycled between high and low pressures by a valve mechanism that connects to an expander. Input power is reduced by use of a buffer volume which stores gas that flows to and from the warm end of the regenerator through a valve that opens and closes during the periods when the main supply and return valves are closed and is closed when the main supply and return valves are open.
Abstract:
Disclosed is a two-stage pulse tube cryopump cooling system (100) in which the pulse tubes (165, 175) and valves (120, 125, 130, 135) are inline, with the hot ends of the pulse tubes at the top and the valve mechanism (118) is at the bottom and the hot ends and buffer volume are cooled by an inline coolant line (190) from the compressor input to the compressor output and attached in heat exchange relationship with the buffer volume.
Abstract:
A detection apparatus and method for an ion migration spectrum include acquiring an ion migration spectrum of pure carrier gas and an ion migration spectrum of carrier gas containing a test substance sample and performing differential process on the ion migration spectrum of the pure carrier gas and the ion migration spectrum of the carrier gas containing the test substance sample to acquire a differential spectrum. The value of a characteristic peak of the differential spectrum represents properties of the sample of substances. The method avoids interferences on the migration spectrum from interference sources of the apparatus itself, thereby improving detection sensitivity and accuracy of the ion migration spectrum, and migration spectrum shift caused by variations in the environmental conditions can be found and corrected through the differential process on the migration spectrum of the pure carrier gas, thereby achieving self-stableness and self-correction of the ion migration spectrometer.
Abstract:
Disclosed is a flexible circuit cable with at least two bundled wire groups. The circuit cable has first and second ends respectively connected to first and second connection sections. The circuit cable includes a cluster section, which is formed of a plurality of cluster wires formed by slitting the circuit cable, in an extension direction of the cable, at a predetermined cut width. The cluster section includes at least two independent bundles, which are formed by dividing the cluster wires of the circuit cable into different signal groups according to electrical signals transmitted therethrough. Bundling members are used to the cluster wires of the independent bundles according to predetermined bundling modes. Further, the circuit cable has a surface forming a shielding conductive layer for electromagnetic interference protection and impedance control for internal signals of the circuit cable.
Abstract:
An etchant for removing a porous low-k dielectric layer on a semiconductor substrate includes a hydrofluoric acid-based solvent, a dilating additive for dilating the pores in the porous low-k dielectric, and a passivating additive that forms a passivation layer at the interface between the low-k dielectric layer and the semiconductor substrate.
Abstract:
The present invention discloses a filter device. The filter device comprises a housing with an air inlet and an filtered air outlet; a high voltage electric field region provided between two ends of the housing, wherein the direction of the electric field is perpendicular to the direction along which the air is introduced into the housing; an ionization source provided in the electric field region to ionize the ionizable pollutants present in the air introduced from the air inlet and form the resultant ionized pollutants which will move towards both ends of the housing under the influence of the electric field; and a discharging device for discharging the ionized pollutants which have arrived at the ends of the housing out of the filter device. The present invention also relates to a filtering method of using the filter device, and a trace detector. The filter device can be used to ionize the ionizable interferents existed in the air, separate the ionized interferents from the other components of the air under the influence of the electric field, and discharge the interferent out of the filter device, thereby reducing the consumption of the consumables or even eliminating the need for consumables. The filter device in accordance with the present invention is applicable to a trace detector based on ion mobility technology for the detection of trace amounts of substances.
Abstract:
A system and method are configured to apply region level optimizations to a selected region of source code rather than loop level optimizations to a loop or loop nest. The region may include an outer loop, a plurality of inner loops and at least one control code. If the region includes an exceptional control flow statement and/or a procedure call, speculative region-level multi-versioning may be applied.
Abstract:
A structure of via hole of electrical circuit board includes an adhesive layer and a conductor layer that are formed after wiring is formed on a carrier board. At least one through hole extends in a vertical direction through the carrier board, the wiring, the adhesive layer, and the conductor layer and forms a hole wall surface. The conductor layer shows a height difference with respect to an exposed zone of the circuit trace in the vertical direction. A conductive cover section covers the conductor layer and the hole wall surface of the through hole. The carrier board is a single-sided board, a double-sided board, a multi-layered board, or a combination thereof, and the single-sided board, the double-sided board, and multi-layered board can be flexible boards, rigid boards, or composite boards combining flexible and rigid boards.