摘要:
A glass woven fabric composed of glass fiber warp threads and glass fiber weft threads, characterized in that the glass fiber warp threads are woven with the glass fiber weft threads at intervals of at least 10 mm in each of the warp and weft directions and characterized by comprising a glass fiber woven fabric portion having non-woven portions in each of which a warp layer in which only the glass fiber warp threads are successively placed side by side and a weft layer in which only the glass fiber weft threads are successively placed side by side are laminated. When the glass woven fabric of this invention is used, a printed wiring board excellent in dimensional stability and surface smoothness can be provided.
摘要:
The present invention relates to a process for producing optically active 3-quinuclidinol or derivatives, wherein a racemic 3-quinuclidinol ester represented by the general formula (I): ##STR1## wherein R represents a straight-chain or branched alkyl group, and (H.sup.+) represents that said ester may be in the form of a salt formed with a mineral acid or an organic acid, is reacted with a microorganism belonging to the genus Aspergillus, Rhizopus, Candida or Pseudomonas having the ability to asymmetrically hydrolyze said ester linkage, a culture of said microorganism, a treated material from said microorganism, an enzyme produced by said microorganism, or an enzyme derived from swine or cattle.According to the present invention, there is provided a process for easily producing optically active 3-quinuclidinol derivatives which are important synthetic intermediates for pharmaceutical preparations etc.
摘要:
A pulse arc welding apparatus feeds a consumable electrode with a constant rate, and arc-welds by applying a welding current constituted of a pulse current of a constant voltage characteristic and a base current of a constant current characteristic between the consumable electrode and a work piece. A pulse frequency correction circuit outputs a frequency correction value f.sub.e to a pulse frequency control circuit, such that when the pulse current upper limit value or lower limit value is selected continuously in a predetermined number of times at a pulse current comparison and adjustment circuit, pulse frequency is increased/decreased by a predetermined value .DELTA.-f by .DELTA.-f in accordance with the selected number of times. According to the pulse frequency control, the pulse arc welding apparatus is capable of substantially increasing a response of an arc length control, and enabling to follow a change of a welding condition and a fluctuation of the distance between a contact tip and a work piece promptly.
摘要:
The invention is characterized by efficiently and quickly loosening an aggregation of toner material formed in a toner cartridge. A toner cartridge has an L-shaped toner agitating member disposed in a main body thereof having a discharge port for feeding toner at the front surface of the main body. Since the toner agitating member is supported so as to pivot like a conical pendulum, a support pin fixed to a bottom surface of the main body passes through a through hole having a greater diameter than that of the support pin. The support pin has an engagement portion attached thereto for prevention of disengagement of the toner agitating member therefrom. A plate-like portion of the toner agitating member defines an agitating plate, a distal end of which extends toward the discharge port of the main body. Shaking the toner cartridge causes the agitating member to rotate about the support pin and to pivot in a direction parallel to the axis of the support pin like a conical pendulum, thereby efficiently loosening the aggregated toner material.
摘要:
A heartbeat rate detection apparatus and method which can accurately detect a heartbeat of a driver by simultaneously detecting a heartbeat rate of the driver with an infrared sensor, and detecting a heartbeat rate of the driver from a potential difference due to pulsation between both hands with a potencial type heartbeat sensor, comparing the the heartbeat rate detected by the infrared type heartbeat sensor with the heartbeat rate detected by the potential type heartbeat sensor, and selects one as an effective heartbeat rate.
摘要:
A fluorescent display device of the front emission type capable of permitting light-permeable anode conductors to be uniformly formed without any deformation and preventing color filters from being affected by etching carried out for forming the anode conductors. A light-permeable anode substrate is provided thereon with strip-like filters, which are then formed thereon with a uniform and flat protective film of light-permeable, insulating and etching-resistant properties. Then, anode conductors are arranged on the protective film. Thus, the anode conductors can be uniformly formed on the flat protective film irrespective of unevenness on a surface of the filters. Also, the protective film prevents the anode conductors from being exposed to etching liquid used for formation of the anode conductors.
摘要:
To simultaneously satisfy retention of a high temperature strength at an initial stage, and during use, and NaCl-induced hot corrosion resistance as well as oxidation resistance in a high temperature member used in an exhaust system of automobiles, the present invention provides a heat-resistant ferrite system stainless steel which has a low (C+N) content, reduces a free (C+N) content by adding Ti or Zr, and can secure sufficiently efficiently solid solution strengthening and NaCl-induced hot corrosion resistance for a long time by sufficiently securing solid solution contents of W, Nb and Mo.
摘要:
In a free piston type oscillating compressor, closed spaces separate from gas springs are provided, and pressures of the closed spaces are regulated, whereby the amplitude, and central position of the stroke, of a free piston can be precisely controlled.
摘要:
A scroll type fluid machine having two scroll members each having an end plate and a spiral wrap formed on the end plate, the scroll members being coupled to each other such that the wraps thereof mate with each other. One of two scroll members being adapted to make an orbitary movement with respect to the other scroll member while being prevented from rotating around its own axis, so as to form at least one working chamber of different pressures between two scroll members. At least two pressing force imparting chambers are formed on the opposite side of the orbitary scroll member to the wrap. The pressing force imparting chambers includes a first chamber which is communicated through a communication passage with at least one of the working chambers which is not materially communicating with a low pressure port and is not at all communicating with a high pressure port of the machine, and a second chamber which is communicated with the high pressure port through a communication passage, so that fluid pressures of different levels are applied to the first and second pressing force imparting chambers so as to produce a force which presses the orbitary scroll member to the other scroll member.
摘要:
In a gas pressure increasing system for increasing the pressure of a refrigerant gas or air having a scroll compressor, a condenser, a pressure reducing means and an evaporator or a scroll compressor and a gas cooler, an exhaust gas released from the scroll compressor after having its pressure increased by the scroll compressor itself is cooled and expanded to reduce its pressure to an intermediate pressure level to produce a gas of an intermediate pressure having a cooling capability. The gas of the intermediate pressure is used to provide a force for axially sealing an orbiting scroll member of the scroll compressor as well as to cool the scroll compressor and a motor.