Abstract: A pressure sensor has a stem in which a pressure introduction hole into which a pressure medium is introduced and a diaphragm deformable according to the pressure of the pressure medium are formed, and a strain detecting element which is arranged on the diaphragm via an insulating film and being configured to output a detection signal according to the deformation of the diaphragm. The strain detecting element is configured to have a portion made of polysilicon. A low doping layer having a higher electrical resistivity than polysilicon and a higher crystallinity than the insulating film is arranged between the insulating film and the strain detecting element.

Abstract: A power control apparatus for a distributed power supply interconnected with a power system includes: a conversion circuit that performs reverse conversion of converting power supplied from the distributed power supply from direct current to alternating current and outputting the converted power; and a control device that controls the conversion circuit. The control device changes a target value of received power at a power reception point of the power system on the basis of a predicted value of a power generation amount of the distributed power supply and a predicted value of power consumption of a demand facility, and controls an output of the conversion circuit such that the received power at the power reception point becomes a target value.

Abstract: The present invention pertains to an energy management device 50 of a microgrid S1 which is associated with a power system 1 and is provided with a power storage device 15, the energy management device calculating a target value of received power of the microgrid, the target value optimizing the utilization efficiency of the energy of the microgrid S1, on the basis of power demand prediction in the microgrid S1 by taking, as constraint conditions, the upper and lower limits of the received power of the microgrid S1 and the upper and lower limits of output power of the power storage device.

Abstract: A calculation device 20 is linked with an electric power system 1 and optimizes energy utilization efficiency of a grid S1 including a power storage device 15. The calculation device 20 determines the range of a final charge state of a prediction target section of the power storage device 15 on the basis of power demand prediction for the next and following sections, and assesses, through the optimization calculation for the prediction target section, whether or not the final charge state of the section falls within the range.

Abstract: A power control apparatus for a distributed power supply interconnected with a power system includes: a conversion circuit that performs reverse conversion of converting power supplied from the distributed power supply from direct current to alternating current and outputting the converted power; and a control device that controls the conversion circuit. The control device changes a target value of received power at a power reception point of the power system on the basis of a predicted value of a power generation amount of the distributed power supply and a predicted value of power consumption of a demand facility, and controls an output of the conversion circuit such that the received power at the power reception point becomes a target value.

Abstract: According to the microprocessor malfunction operation preventing circuit of this invention, when the source voltage of a microprocessor is reduced to a prescribed voltage level between the value of a second source voltage (battery voltage) and the upper limit value of an operation unsteady region of the microprocessor, the microprocessor is enforcedly reset. Therefore, the microprocessor can be prevented from falling into its malfunction operation state, and the microprocessor can be freely actuated with any one of the main power source and the auxiliary power source.

Abstract: In a camera with an electronic flash unit, an end portion of a reflector of the electronic flash unit is fixed to a camera main body, and the reflector is held by a press member and a cover which covers the camera main body.

Abstract: A process for preparing a bulk powder for an oxide superconductor which comprises mixing an alcohol solution (I) of a copper nitrate and a lanthanoid metal nitrate with an alcohol solution (II) comprising at least one compound selected from the group consisting of a barium hydroxide and a barium alkoxide to give a coprecipitate, and thermally decomposing the coprecipitate. According to the present invention, compared to the solid-state reaction, fine particles having the particle size of not more than 1 .mu.m can be easily produced because barium carbonate comparatively stable to heat is not formed on calcination, and the desired bulk powder for oxide superconductor can be produced at even lower temperature. Consequently, the obtained bulk powder for the oxide superconductor has fine particles, e.g. the particle size being not more than 1 .mu.m, therefore, the powder is excellent in stoichinometry, large in surface energy and excellent in sintering property.

Abstract: In a camera with an electronic flash unit, an end portion of a reflector of the electronic flash unit is fixed to a camera main body, and the reflector is held by a press member and a cover which covers the camera main body.

Abstract: A photosensitive drum adapted for use in electronic copying machines and laser beam printers, the drum made of aluminum-based alloy and supporting a photosensitive recepter thereon, the aluminum-based alloy having a composition consisting essentially of 0.5 to 8.0% of Ni, and preferably, one or more additives selected from a group of 0.05 to 1.5% of Mn, 0.05 to 1.0% of Cr, 0.05 to 0.5% of Zr, 0.5% or less of Ti, 0.1% or less of B, 0.05 to 7.0% of Cu, 0.05 to 7.0% of Mg, 0.05 to 8.0% of Zn, 0.05 to 12.0% of Si, and 0.05 to 2.0% of Fe, and the balance being substantially aluminum.

Abstract: An apparatus and a method for carrying out the dehydration reaction to produce a high boiling compound comprises charging a raw material and an organic solvent into a circulating system including a reactor, a preheater and an evaporator to cause the chemical dehydration reaction, drawing water, formed as a result of the dehydration reaction, together with the solvent in the form of vapor, compressing the vapor, effecting a heat exchange between the compressed vapor and the evaporator, dehydrating the compressed vapor by condensation, removing the dehydrated water out of the system, and returning the remaining solvent to the reactor.

Abstract: An outrigger for use in a wheel-type vehicle which can be mounted just behind a front wheel where available height for mounting is very limited. The outrigger comprises a support fixedly secured to an axle of the vehicle, a first and a second link both pivotally mounted to the support and being in parallel to each other, an earth contacting member pivotally connected to both first and second links, the earth contacting member being generally L-shaped when viewed from the bottom, and a hydraulic cylinder pivotally connected to the support and the earth contacting member.

Abstract: A hydraulic excavator has a bucket actuating and control linkage comprising a boom pivotally connected at one end to a self-propelled vehicle, a stick pivotally connected at one end to the other end of the boom, and a bucket pivotally mounted on the other end of the stick. A pair of hydraulic cylinders for actuating the bucket are pivotally connected to the boom via a pair of bucket attitude control bellcranks, respectively. By adjustment of the angular position of the bucket attitude control bellcranks relative to the boom, as by another pair of hydraulic cylinders, the bucket can be conditioned for a level crowd attitude, crowd-to-carry attitude, or crowd-to-dump attitude.

Abstract: N-[2'-methyl-4'-aminopyrimidyl-5'-]methyl-4-methyl-5-.beta.-hydroxyethyl-th iothiazolone(2) is electrochemically oxidized to produce vitamin B.sub.1 in the anode side and simultaneously 2-methyl-4-amino-5-cyanopyrimidine is reduced to produce 2-methyl-4-amino-5-aminomethylpyrimidine in the cathode side. Both anode and cathode sides are separated from each other by at least one sheet of cation exchange membrane.

Abstract: A bulldozer assembly has a swivel connection between blade and C-frame for permitting both angling and tilting motions of the former relative to the latter. The swivel connection comprises a swivel block mounted centrally astride the front end of the frame for pivotal or tilting motion relative to same in its lateral direction about a horizontal axis. The swivel block is hingedly jointed to the blade so that the latter may be tilted simultaneously with the block but free to angle relative to same about a normally vertical axis. A tilt cylinder is operatively connected between frame and swivel block, and a pair of laterally spaced angle cylinders between frame and blade.

Abstract: A mounting arrangement for supporting a bulldozer blade on a vehicle having a C-frame wherein the blade is supported by a centrally located universal joint on the C-frame and a pair of longitudinary arranged hydraulic jacks.A generally horizontally tilt jack is pivotally connected between the back of the blade and a bracket provided atop the C-frame to stabilize the mounting structure and to tilt the blade.A rocker arm is pivotally mounted at a central portion thereof to the bracket, one end of the rocker arm being connected to the blade and the other end thereof being connected to the C-frame.

Abstract: A method of producing diacetone sorbose by reacting L-sorbose with acetone in the presence of a ketal formation catalyst in acetone, which comprises: carrying out the reaction while continuously removing water generated in the reaction together with acetone and continuously adding to the reaction mixture dehydrated acetone of which water content is not more than about 100 ppm.