Abstract: A heterostructure insulated-gate field effect transistor comprises a channel layer, barrier layer and a contact layer. The barrier layer is made of a material having an electron affinity smaller than that of the channel layer and equal to that of the contact layer. Due to the single heterostructure, the series resistance between the channel layer and the source (drain) electrode can be decreased without employing complicated selective ion implanting or selective epitaxial growing method.

Abstract: Secretion of gastric acid and development of ulcers can be inhibited by administering to a patient in need thereof an effective amount of a hot water extract of the cultivated mycelia of Cordyceps sinensis.

Abstract: A tubular portion 1 of a bell mouth has on its outer peripheral surface one or a plurality of first projections 21 projecting radially and one or a plurality of second projections 22 projecting at a position phased differently from the first projection 21 in an axial direction and in a circumferential direction, each of the projections 21 and 22 being formed such that its surface on a bell-shaped opening portion 3 side is formed as a sharply angled surface 2a, while its surface on a tubular opening portion 4 side is formed as a gently inclined surface 2b, an axial phase interval w between the first projection 21 and the second projection 22 is set to satisfy the relationship: w.ltoreq.W with respect to an axial width W of an inner surface portion of a small-diameter portion 32 in the annularly corrugated pipe P, a circumferential phase angle r being substantially equal to a value calculated by dividing a half angle of circumference (180 degrees) by the first projections 21.

Abstract: A method and apparatus for controlling transfer of data in which a plurality of burst transfer operations starting from an arbitrary byte as a start address are performed consecutively without a high-speed adder provided in the conventional data transfer apparatus performing burst transfer. Data is transferred between memories by a plurality of consecutive burst transfer operations performed on data stored in consecutive addresses. Each of the burst transfer operations is performed on the data stored in a respective one of memory cell areas each of which corresponds to a unit of burst transfer. A first address representing an address of one of the memory cell areas storing data to be transferred is calculated. The first address is a part of a start address of a second or later burst transfer operation. A second address representing an address of one of memory cells provided in the one of the memory cell areas is calculated separately. The data transfer operation is started from the one of the memory cells.

Abstract: The present invention relates to an apparatus for processing fluid for separating any component mixed or dissolved in a fluid and a method for producing a separated fluid. The present invention provides an apparatus for processing fluid which does not require any complicated manifolds in such a way that a plurality of cylindrical vessels each having a plurality of flow ports on the outer peripheral surface thereof at positions near both ends thereof, respectively, and incorporating therein a series of separating elements are arranged substantially parallel to one another with the flow ports of the adjoining cylindrical vessels held connected face-to-face with each other. Further, a method for producing separated fluid at a low cost can be provided by using the above-described apparatus for processing fluid.

Abstract: A component device (such as an input circuit interface device, a cell multiplexing device, a cell switching device, a cell demultiplexing device or output circuit interface device) in an ATM exchange counts an inflow cell number, a passage cell number and discard cell number. The firmware of the device subtract the passage cell number and the discard cell number from the inflow cell number to find a difference at predetermined interval. If the difference is larger than the predetermined threshold value, the firmware informs the software of fault warning.

Abstract: In causing an organic electroluminescent device to emit light upon exerting a voltage between a hole injection electrode and an electron injection electrode in the organic electroluminescent device, the frequency of electricity supplied to the organic electroluminescent device is modulated, to adjust the luminance of the light emitted from the organic electroluminescent device. In an organic electroluminescent apparatus and a display device in which the organic electroluminescent device is provided, there is provided frequency modulation means for modulating the frequency of electricity and supplying electricity to the organic electroluminescent device.

Abstract: A print head 20 is placed upstanding on a chassis 25 through a protective member 26. A support shaft 28 to which a platen roller 21 is attached through a support member 27 is fixed at a lower end to the chassis 25. The support shaft 28 is fixed at an upper end to an upper attaching portion 25a of the chassis 25. A space restricting member 31 is provided to the upper attaching portion 25a so as to engage with an engaging lug 35 on the protective member 26 to restrict the upper ends of the print head 20 and the platen roller 21 at a predetermined space from each other. Thus, the upper ends of the print head 20 and the platen roller 21 are maintained at the predetermined space during printing to press the print head 20 and platen roller 21 against each other with a uniform pressure along their lengths. As a result, there is no difference in printing state between the upper and lower portions of the print head 20 and the platen roller 21, and uniform printing and improved print quality can be achieved.

Abstract: A headlamp for a vehicle includes a lamp housing having an opening portion; a discharge lamp removably contained in the lamp housing; and a lighting circuit unit, mounted in such a manner so as to cover the opening portion from a rear surface side of the lamp housing, for lighting the discharge lamp. A plug is separated from a cord connector when the lighting circuit unit is removed from the lamp housing. Thus, when the work of removing the lighting circuit unit is completed, the plug is necessarily separated from the cord connector, to thereby cut off the power supply to the lighting circuit unit.

Abstract: A processing apparatus comprises a register file having a rectangle-shaped contour and including a plurality of registers each of which is comprised of a plurality of register cells, a first operating unit located opposite to a first side of the rectangular contour of the register file, a second operating unit located opposite to a second side of the rectangular contour of the register file which is opposite to the first side, a third operating unit located opposite to a third side of the rectangular contour of the register file which is different from the first and second sides, a first data bus disposed for transferring data between the first operating unit and the register file, a second data bus disposed for transferring data between the second operating unit and the register file, and a third data bus disposed for transferring data between the third operating unit and the register file.

Abstract: A steel mother pipe obtained by a solid phase butt-welding pipe-making process or a welding pipe-making process is reduced by heating the pipe prior to the reduction at a temperature exceeding 100.degree. C. and lower than 800.degree. C. wherein the temperature of the steel pipe being reduced is controlled within a defined range. The temperature difference along the circumferential direction of the mother pipe at the inlet side of a reducer is within a defined range, and the temperature of the steel pipe at interstand positions of the reducer is also controlled. By virtue of this control, the reduction becomes possible at low load while suppressing work hardening without degrading surface properties. The resultant product pipe has a dimensional accuracy maintained at a high level.

Abstract: The reflector-provided dipole-antenna shows outstanding performance in a wide frequency range and allows simultaneous transmission and reception at different frequencies. A dipole antenna element is provided at the back of a dielectric substrate set to the reflector surface. A parasitic element is provided on the front of the dielectric substrate, which is constituted by forming and protruding the central portion of a linear conductor forward in an almost trapezoidal shape, for example. The protruded portion is set to a position corresponding to the front of the feed point of the dipole antenna element and the portions of the said parasitic element towards the ends are set to positions corresponding to the rear of the dipole antenna element. A feed circuit provided on the face side of dielectric substrate is connected to a coaxial connector provided at the back of the reflector.

Abstract: A cooking device includes an infrared ray sensor disposed to sense infrared radiation from food obliquely from the above. Infrared ray sensor includes a printed circuit board, a light receiving portion, a photointerrupter, and a chopper. The chopper includes a horizontal vane portion and a vertical vane portion. The chopper is disposed between the light receiving portion of infrared ray sensor and food such that the vertical vane portion passes between the light emitting device and light receiving device of photointerrupter and that horizontal vane portion passes between the light receiving portion of infrared ray sensor and food when chopper rotates. Thus, an improved microwave oven having a reduced occupied area which can be manufactured less costly can be provided.

Abstract: A Colpitts-type voltage-controlled oscillator includes a transistor having a collector which is connected to a power terminal through a stripline. A capacitor is connected between the collector and the emitter thereof. A diode is connected to the capacitor and an inductor is connected to a point between the capacitor and diode. Another capacitor is connected between the base and the emitter of the transistor. An inductive reactance is formed by a stripline which is connected between the base of the transistor and the ground, two capacitors for DC blocking, and a variable-capacitance diode. Bypass capacitors are connected between the collector of the transistor and the ground. A resistor is connected between the emitter of the transistor and the ground. Two other resistors are provided for dividing a power voltage at the power terminal and for supplying a base voltage to the transistor. Turning the diode on and off allows the oscillating frequency of the voltage-controlled oscillator to vary by a large amount.

Abstract: A porphyrin metal complex-albumin inclusion compound wherein a substituted porphyrin metal complex comprising, as a central, coordinated metal, a transitional metal belonging to the fourth or fifth period of the periodic law, is included in the albumin, and an oxygen carrier composition comprising said inclusion compound as an active ingredient. The compound functions as an oxygen carrier which is superior in biocompatibility, capable of adsorption and desorption of oxygen under physiological conditions, and is rather easily produced at an industrial scale.

Abstract: A compound expressed by the general formula (1): whereinR.sup.1 denotes an alkyl group having 1 to 20 carbon atoms in which one or more methylene groups in said group may be replaced by oxygen atoms or --CH.dbd.CH-- and one or more hydrogen atoms in said group may be replaced by fluorine or chlorine atoms, with the proviso that two or more methylene groups may not be continuously replaced by oxygen atoms;Y.sup.1 denotes a halogen atom, CN, CF.sub.3, CHF.sub.2 or an alkoxy group having 1 to 5 carbon atoms, in which at least one hydrogen atom is replaced by a fluorine atom and one or more hydrogen atoms may be further replaced by chlorine atoms;Z.sup.1, Z.sup.2 and Z.sup.3 each independently denote a covalent bond, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH-- or CF.sub.2 O--, with the proviso that at least one of Z.sup.1, Z.sup.2, and Z.sup.3 is --CF.sub.2 O--;rings A.sup.1, A.sup.2 and A.sup.

Abstract: A digital video signal record and playback device for recording on a recording medium a digital video signal coded by using a motion compensation prediction and an orthogonal transform and playing back data from the recording medium. In a data arrangement of a digital video signal, an I picture which can be independently represented in a picture is divided into n areas in the vertical direction, and the data is arranged from the front of one GOP in the unit of area by giving a priority to an area located at the center of the screen. A playback picture is outputted by playing back the I picture read from the recording medium in the unit of area unit. In the case where the whole I picture area cannot be read within a definite time, the area which cannot be read are interpolated by the use of the data of the preceding screen.

Abstract: In an air conditioning system for circulating a fluid which can change a phase between a gas phase and a liquid phase by a difference of a specific gravity between the gas phase and the liquid phase between an heat source side machine and a plurality of user side machines more than half of which are disposed below the heat source side machine, so that each of the user side machines performs a cooling operation, each of the user side machines is provided with a heat exchanger, a flow control valve for controlling a volume of said fluid supplied to the heat exchanger, a blow means for supplying an air-conditioned air to a room through the heat exchanger, a physical value detecting means for detecting a physical value relating to an air conditioning load such as a temperature and a signal controlling means for the operating and detecting portions, and wherein the heat source side machine is provided with a control means for communicating with said signal controlling means and outputting a control signal to said

Abstract: There is disclosed a method for producing polymer articles having highly functionalized surfaces excellent in biocompatibility, by irradiating the surfaces of a polymer article with an ultraviolet laser beam in a solution containing a biopolymer. According to this method, a polymer article that has surfaces with biocompatibility, can be produced.