Abstract: A process for manufacturing a hollow silicon structure is simplified. A device for manufacturing the silicon structure is a device that manufactures the hollow silicon structure by processing a silicon structure, the silicon structure consisting of a silicon oxide layer formed on a silicon substrate, the silicon oxide layer being covered by a silicon layer. The device is provided with first gas supply members 20 and 21, second gas supply members 30 and 31, an etching reaction chamber 10, selective connecting means 23 to 26, 34 and 35, and a gas discharging means 42. The first gas etches silicon. The second gas etches silicon oxide and barely etches silicon. The selective connecting means 23 to 26, 34 and 35 selectively connect the etching reaction chamber 10 with either the first gas supply members 20 and 21 or the second gas supply members 30 and 31. The gas discharging means 42 discharges gas from the etching reaction chamber 10.

Abstract: [PROBLEMS] To develop by an easy method an oily food material which, when eaten, gives a satisfactory and novel feeling in the mouth and which has high heat resistance. [MEANS FOR SOLVING PROBLEMS] In the oily food material, the particle size of solid ingredients other than the fat is kept at 30 ?m or more, which is larger than in ordinary oily food materials represented by chocolate, and the proportion of StUSt to all fat is regulated to 30 wt % or higher. Furthermore, the fat content in the oily food material is 20-55%. Due to this constitution, the oily food material has significantly improved meltability in the mouth while retaining high heat resistance. It can be produced by an easy method.

Abstract: [PROBLEMS] To develop an oily food suffering from less worsening in the meltability in the mouth and flavor development, which arises in association with the improvement in heat resistance, and to which the above functions can be imparted by a convenient method. [MEANS FOR SOLVING PROBLEMS] By controlling the composition rate of SOS to (SOO+SLS+SLO) to a specific level in the fat composition in preparing an oily food, worsening in the meltability in the mouth and flavor development, which arises in association with the improvement in heat resistance, can be lessened. Moreover, an oily food having the above functions imparted thereto can be produced by a convenient method.

Abstract: A fat for producing confectionery having an improved fatty taste, which is produced by adding an aqueous solution of at least one organic acid selected from the group consisting of ascorbic acid, erythorbic acid, lactic acid, tartaric acid, citric acid and malic acid to a fat for confectionery production, followed by drying, a process for producing the fat for confectionery production, and a product, such as chocolate and/or cream, using the fat for confectionery production.

Abstract: A fat for producing confectionery having an improved fatty taste, which is produced by adding an aqueous solution of at least one organic acid selected from the group consisting of ascorbic acid, erythorbic acid, lactic acid, tartaric acid, citric acid and malic acid to a fat for confectionery production, followed by drying, a process for producing the fat for confectionery production, and a product, such as chocolate and/or cream, using the fat for confectionery production.

Abstract: A process for manufacturing a hollow silicon structure is simplifie. A device for manufacturing the silicon structure is a device that manufactures the hollow silicon structure by processing a silicon structure, the silicon structure consisting of a silicon oxide layer formed on a silicon substrate, the silicon oxide layer being covered by a silicon layer. The device is provided with first gas supply members 20 and 21, second gas supply members 30 and 31, an etching reaction chamber 10, selective connecting means 23 to 26, 34 and 35, and a gas discharging means 42. The first gas etches silicon. The second gas etches silicon oxide and barely etches silicon. The selective connecting means 23 to 26, 34 and 35 selectively connect the etching reaction chamber 10 with either the first gas supply members 20 and 21 or the second gas supply members 30 and 31. The gas discharging means 42 discharges gas from the etching reaction chamber 10.

Abstract: A foamed chocolate which can be foamed without resort to any special apparatuses or emulsifiers, has a lightened chocolate texture and shows no oily feel. This foamed chocolate is produced by adding an oil mixture comprising an edible fat or oil with tri-saturated fatty acid glycerides containing behenic acid.

Abstract: A solute and a solvent with close boiling points or close polarities are separated and concentrated by vaporizing at least one of the solvent and solute, and selectively adsorbing the vaporized component in an apparatus having a vessel, and an absorbent with an opening into the vessel.

Abstract: An apparatus for analyzing air/fuel ratio sensor characteristics makes it possible to perform highly accurate analysis of the characteristics of an air/fuel ratio sensor to be measured.

Abstract: A force transducer for detecting compression. The force transducer comprises an Si single crystal so formed as to have a crystal face of {110} as the surface to which compression is applied; a first pair of opposing electrodes provided on the Si single crystal in the direction having an angle of 45 degrees with the direction of <001> of the Si single crystal and a second pair of opposing electrodes provided on the Si single crystal in the direction having an angle of 45 degrees with the direction of <110> of the Si single crystal; a seat which is bonded to the crystal face of {110} of the Si single crystal and which transmits the compression substantially uniformly to the crystal face; and a base which is bonded to the surface of the Si single crystal opposite to the surface bonded with the seat and which supports the Si single crystal. The force transducer has a simple structure as a whole and is capable of detecting compression with accuracy.

Abstract: A low section profile pneumatic radial tire for heavy vehicles used for recently developed transport facilities such as a trolley bus, mono-rail vehicle, driverless vehicle, sub-way vehicle, etc. is disclosed. The low section profile pneumatic radial tire for heavy vehicles is constructed to satisfy the following three conditions, i.e.1. a thickness Gm of that tread portion which extends along a crown center region SW2 is substantially uniformly distributed over 35-60% of the maximum width SW1 of those inextensible layers which mainly consist of a tension member of a belt,2. a cushion rubber formed of a rubber stock which is triangular in cross-section and has a thickness Gs is arranged outside both sides of the center region of a crown and inserted between a carcass and a belt so as to gradually increase the thickness of the tread portion toward the hump portion of the tire, and3.