摘要:
A vegetable fiber cement moulded body of the present invention includes a nitrate as an additive agent. A method of manufacturing the same includes the steps of mixing raw materials including at least a vegetable fiber material, cement and water, moulding the mixed material, and curing this molded body, wherein a nitrate is added at the time of the aforementioned raw material mixing step or the aforementioned molding step. The molded body is preferably heated at the time of the curing step. According to the present invention, a vegetable fiber cement molded body of high strength which is not easily affected by substances that inhibit cement hardening and a method of manufacturing the same efficiently and at low cost are provided.
摘要:
A tool for tightening and melt-adhering a strap, which is light in weight, can be operated by one hand, performs a series of operations, i.e., tightening, pressurizing and frictionally melt-adhering the strap by utilizing power (fluid pressure) instead of manual operation, and which enables the time for frictional melt-adhesion to be adjusted over a wide range and highly precisely with ease, enabling the worker to continue the operation maintaining high efficiency with less fatigue. The tool for tightening and melt-adhering the strap comprises a means for pressing a tightening roller which includes a reversible motor, a means for pressing a vibrator for friction, and a timing mechanism capable of adjusting the time for driving the vibrator over a wide range and finely, which are compactly arranged as a unitary structure.
摘要:
A method of producing an aromatic polyester by distilling a low-boiling fraction from a polycondensation vessel containing a reaction product obtained by acetylating raw monomers of the aromatic polyester with acetic anhydride, wherein the polycondensation vessel is provided with a partial condenser, and controlling a temperature of the low-boiling fraction distilled from the partial condenser within a range from 80 to 150° C. while the amount of the low-boiling fraction distilled from the partial condenser is within a range from 50% to 90% based on a theoretical recovery amount is provided; and according to this method, adhesion of low-molecular compounds to a partial condenser in the production can be prevented and an improvement in yield of the aromatic polyester and stabilization of product quality can be accomplished.
摘要:
A semiconductor IC comprises an LDD-MOSFET and a bipolar transistor both formed on a common semiconductor substrate. A gate electrode of the MOSFET has a laminated structure including a polysilicon layer, a tungsten silicide layer and another polysilicon layer consecutively formed. The top polysilicon layer functions for protecting the tungsten silicide layer so that tungsten is not back-sputtered to deposit particulates on a base region of the bipolar transistor during an anisotropic etching step for forming sidewall spacers of the gate electrode. Accordingly, a sputter-etch cleaning step for removing tungsten particulates out of the base region is omitted. A BiCMOS IC having an LDD structure and comprising a bipolar transistor with required performance can be manufactured by a simple process.
摘要:
A vehicle control apparatus for controlling at least one running condition of a vehicle, including an intended-target-position determining device which determines an intended target position of the vehicle based on a steering angle of the vehicle; a running-state detector which detects a running state of the vehicle; an estimated-target-position determining device which determines an estimated target position of the vehicle based on the running state of the vehicle detected by the running-state detector; a vehicle-condition changing device which changes the at least one running condition of the vehicle; and a vehicle-condition control device which controls the vehicle-condition changing device based on a difference between the intended target position of the vehicle determined by the intended-target-position determining device and the estimated target position of the vehicle determined by the estimated-target-position determining device, thereby controlling the at least one running condition of the vehicle.
摘要:
A compound of the formula: ##STR1## wherein X is .dbd.N--A--R.sup.1 or .dbd.C(R.sup.1)R.sup.2 ; A is a single bond, polymethylene or --CO--; R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.7 cycloalkyl, unsubstituted or substituted phenyl, optionally substituted benzhydryl, or optionally substituted 5 to 6 membered heterocyclic group; Y is hydrogen, halogen, C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.7 cycloalkyl, C.sub.1 -C.sub.6 alkoxy, optionally substituted phenoxy, optionally substituted benzyloxy, or optionally substituted benzyl; Z is hydrogen or acyl; n is an integer of from 2 to 6, and pharmaceutically acceptable salt thereof. A pharmaceutical composition containing the compound, which is useful for treating hypertension and cardiac diseases, is also provided.
摘要:
For control of a four-wheel steering vehicle having a front wheel steering mechanism for a set of dirigible front road wheels and a rear wheel steering mechanism for a set of dirigible rear road wheels, a deviation of the fore-and-aft axis at the front part of the vehicle body relative to the fore-and-aft axis at the rear part of the vehicle body is detected, an optimum rear wheel steering angle is determined in consideration with the detected deviation, and a control signal indicative of the optimum rear wheel steering angle is applied to the rear wheel steering mechanism to steer the rear road wheels at the optimum rear wheel steering angle.
摘要:
A thermoplastic resin composition substantially constituted of (A) 25 to 70% by weight of a polyamide, (B) 25 to 70% by weight of a polyphenylene ether and (C) 2 to 25% by weight of a block copolymer having at least one polymer block mainly comprised of a vinyl aromatic compound and at least one polymer block mainly comprised of a conjugated diene compound having the content of the vinyl aromatic compound in the range of 25 to 85% by weight; wherein the polyamide forms a continuous phase, and, in the continuous phase, the polyphenylene ether is dispersed to form a dispersed phase having an average particle diameter ranging from 0.5 to 10 .mu.m, and further, substantially all of the block copolymer is micro-dispersed in the dispersed phase of the polyphenylene ether. The composition is widely used as outerplate materials or wheel caps of automobiles, as electrical or electronical parts, especially the various connectors which are used in automobiles, etc.
摘要:
A semiconductor integrated circuit includes a MOS transistor, and a transistor circuit in which one end of a current path is connected to a drain of this MOS transistor and which has an avalanche breakdown voltage lower than a breakdown voltage of the MOS transistor.
摘要:
A bushing assembly incorporated in an eye of a suspension arm for an automobile includes a cylindrical member, a cylindrical rubber bushing adhered to the outer peripheral surface of the member and press fitted in the eye, and a cylindrical insert embedded in the bushing. The bushing is provided on each end with a flange extending radially outward and contacting each end surface of the eye when the bushing has been fitted in the eye.