摘要:
Photoelectric conversion devices are manufactured at high yield by repairing the devices during the final steps of the manufacuturing process. Short current paths resulting from the formation process of semiconductor layers can be eliminated by applying a reverse voltage to the layers, which thus are heated and made insulating. After the elimination of the short current paths, the reverse current no longer passes beyond 15 mA on a reverse voltage of 8 V.
摘要:
A polyacetal resin composition comprises a polyacetal resin as the matrix, (A) 0.01 to 2.0 percent by weight of a stabilizer selected from a benzotriazole compound, a benzophenone compound and an aromatic benzoate compound and (B) 0.01 to 2.0 percent by weight of a hindered amine compound and is improved in whetherability.
摘要:
In a rotary printing press, an apparatus, for automatically mounting and removing printing plates comprises: a magazine associated with a main body and including a plate take-out unit for positioning a plurality of successive fresh printing plates in order, and a plate storage unit for temporarily storing a plurality of used printing plates; and a mechanical hand adapted for holding a printing plate and supported by a shaft of and an arm of the main body, the mechanical hand being actuated by the shaft and arm for reciprocating between the magazine and a peripheral surface of a plate cylinder.
摘要:
An automatic assembly system wherein parts supplied from a feeder are held by a holder and are automatically mounted onto predetermined positions of a circuit board; comprising a first image pickup device which images at least a portion of said circuit board, a second image pickup device which images at least a portion of the part held by the holder means, a signal processor which processes an output of said first image pickup device to detect a deviation of said circuit board from a reference position and which also processes an output of said second image pickup device to detect a magnitude of deviation between said part and the predetermined position of said circuit board, and a positioning device which operates under control of said signal processor so as to adjust said predetermined position of said circuit board to a position opposing to said part and also to move said part toward said circuit board.
摘要:
A lower alcohol, especially methanol, or dimethyl ether is subjected to pyrolysis conditions in the presence of a specific catalyst to obtain lower olefins. The catalyst is comprised of a smectite, such as a montmorillonite clay, having superimposed aluminosilicate layers and zirconium oxide intercalated between the structural, aluminosilicate layers.
摘要:
In the process where a shaped product of expanded polystyrene is continuously produced by passing preliminarily expanded beads of polystyrene interposed inside a carrying means comprising a circulating steam-permeable single belt or a set of belts of the same nature through a pressurized steam chamber provided with pressure-sealing means at the inlet and the outlet thereof, thereby closely integrating the beads into a sheet through softening and expansion of the beads by steam heating, then cooling the resulting shaped product, and separating the shaped product from the carrying belt or belts, while withdrawing the shaped product to a successive step and returning the carrying belt or belts to the inlet side of the pressurized steam chamber, at least one of the surfaces of the carrying belt(s) is wetted with water before supplying the preliminarily expanded beads onto the belt(s) on the inlet side of the pressurized steam chamber, and thereafter the preliminarily expanded beads are supplied in excess onto the wetted surface(s) of the belt(s), the beads free from the adhering action due to the surface tension of water on the surface(s) of the belt(s) are removed from the belt(s), and the remaining beads attached to the wet belt(s) are fed into the pressurized steam chamber, while being interposed between the belts.
摘要:
Disclosed is an electromagnetic wave absorbent which exhibits high electromagnetic wave absorption performance over a wide band. The electromagnetic wave absorbent contains a conductive fiber sheet which is obtained by coating a fiber sheet base with a conductive polymer and has a surface resistivity within a specific range. The conductive fiber sheet is formed by impregnating a fiber sheet base such as a nonwoven fabric with an aqueous oxidant solution that contains a dopant, and then bringing the resulting fiber sheet base into contact with a gaseous monomer for a conductive polymer, so that the monomer is oxidatively polymerized thereon.
摘要:
There is provided an air bed including (a) a plurality of air chambers arranged adjacent to one another and composed of air-impermeable sheet, (b) an air pump for introducing air to said air chambers, (c) a plurality of on/off valves each of which is located between each of said air chambers and said air pump, (d) a plurality of pressure sensors each of which senses a pressure in each of said air chambers and emits a signal accordingly, and (e) a controller receiving said signal from each of said pressure sensors and controlling on/off of each of said of/off valves in accordance with said signal. In accordance with the above-mentioned air bed, since the air pump is connected to each one of the air chambers, it is possible to control an internal pressure of each of the air chambers. In addition, since air is introduced independently to each of the air chambers from the air pump, it is possible to fill each of the air chambers with air in a shorter period of time than a time required for filling all of air chambers with air in a conventional air bed in which air is introduced to one of air chambers and transferred chamber-to-chamber.
摘要:
A catalyst for the oxidative condensation of a lower aliphatic hydrocarbonncluding a carrier of a solid, oxide superacid, and at least one transition metal compound and at least one alkali metal compound supported on the carrier. By contacting a lower aliphatic hydrocarbon with oxygen in the presence of the above catalyst, a hydrocarbon with an increased carbon number can be obtained.
摘要:
The present invention provides a method for using the anti-obesity agent comprising 4-cholesten-3-one represented by the following formula: ##STR1## as an effective component. The anti-obesity agent of the present invention is useful because of inhibition effect of body weight increase and body fat accumulation. The present invention also provides a medicinal composition comprising 4-cholesten-3-one as an effective component and a pharmaceutically acceptable excipient as well as methods for preventing and treating obesity comprising administering an effective amount of 4-cholesten-3-one to a person.