摘要:
A lubricant composition comprising from 0.1 to 10% by weight of a phosphate glass, characterized in that said phosphate glass comprises from 45 to 75 mole % of P.sub.2 O.sub.5, from 10 to 35 mole % of M.sub.2 O (M represents alkaline metals) and from 0 to 45 mole % of B.sub.2 O.sub.3. Phosphate glasses are in the form of powder with white to ash-colored appearance, and do not cause dirt of working surroundings. Phosphate glasses are less expensive than solid lubricants which are conventionally used, and also excellent load carrying capacity can be attained by adding a small amount of phosphate glass to a lubricant composition. Accordingly, the lubricant composition of the present invention shows better load carrying capacity than a conventional lubricant composition.
摘要翻译:一种润滑剂组合物,其包含0.1至10重量%的磷酸盐玻璃,其特征在于所述磷酸盐玻璃包含45至75摩尔%的P 2 O 5,10至35摩尔%的M 2 O(M表示碱金属)和0至 45摩尔%的B2O3。 磷酸盐玻璃呈粉白色至灰白色外观,不会造成工作环境污染。 磷酸盐玻璃比常规使用的固体润滑剂便宜,并且通过向润滑剂组合物中加入少量磷酸盐玻璃可以获得优异的负载能力。 因此,与常规润滑剂组合物相比,本发明的润滑剂组合物显示出更好的承载能力。
摘要:
The present invention provides aminocyclopentane derivatives which are saccharide analogs having extremely high .alpha.-glucosidase inhibitory effects and novel structures and expected to be usable or applicable to drugs or agricultural chemicals. An aminocyclopentane derivative represented by the formula (1), wherein R.sub.1 represents H while R.sub.2 represents CH.sub.2 OH, or R.sub.1 represents CH.sub.2 OH while R.sub.2 represents H and R.sub.3 represents a substituted or unsubstituted aryl group or an alkyl, alkenyl, alkynyl or hydroxyalkyl group having 1 to 10 carbon atoms, intermediates for the synthesis of the same, a process for producing the intermediates and a process for producing the aminocyclopentane derivative. ##STR1##
摘要:
A change gear control device is provided for an automatic transmission in a motor vehicle propelled by an internal combustion engine which is operated with an air/fuel mixture having air/fuel ratios ranging from a fuel rich air/fuel ratio to a fuel lean air/fuel ratio depending on driving conditions of the motor vehicle. In this device a first detector detects an engine torque of the internal combustion engine and a second detector detects a vehicle speed of the motor vehicle. A processor processes transmission gear ratios for the automatic transmission. In particular, the processor reads the detected engine torque from the first detector and the detected vehicle speed from the second detector, determines a new transmission gear ratio based upon the engine torque and the vehicle speed, and outputs a signal representing the new transmission gear ratio to the automatic transmission, whereby a gear shifting operation is effected at a timing based on an engine torque variation due to an operating air/fuel ratio change.
摘要:
A superconducting transistor having a source region and a drain region are formed by a YBCO film on a barrier layer, which is composed of a PBCO film formed on an STO substrate. A gate electrode is disposed on the thinner wall at the back of the STO substrate. In a superconducting transistor so constructed the electric field created by the gate voltage works effectively at an interface with the barrier layer, more carriers can be drawn out relative to the applied gate voltage, and it becomes possible for a large superconduction current to flow.
摘要:
An image-forming machine equipped with a transfer device means of the type not using a transfer corona discharger is disclosed. A charge supply member is disposed opposite to an image forming member on whose surface a toner image is to be formed and at a greater distance than the thickness of a transfer material from the image forming member. In a transfer zone, the surface of the transfer material is brought into contact with the surface of the image forming member. In a charge supply zone, the transfer material is contacted with the surface of the charge supply member. In the direction of conveyance of the transfer material, the charge supply zone is positioned downstream of the transfer zone.
摘要:
A high concentration of diatomic molecules is caged in a host crystal by a crystal growth process, in which all other internal degrees of freedom of the diatomic molecule, except the vibrational, are frozen. Such a system provides an efficient mid-infrared, solid-state laser that can be pumped by a laser diode. Other uses include magnetic (Faraday) rotators, electro-optic switches, and Q-switches. The crystal growth process employs Czochralski-type or Bridgman-type processes under high pressure to introduce the diatomic molecule into the host lattice at a temperature slightly above the melting point of the host crystal, followed by slow cooling.
摘要:
In a method of and an apparatus for manufacturing a glass fiber mat, bundles of glass fibers shake down onto a conveyor unit arranged horizontally, to form a non-oriented fiber layer. The non-oriented fiber layer is dried by a drier. Bundles of uni-directional fibers are supplied onto the dried non-oriented fiber layer, by a bundle supply device, to laminate the uni-directional fiber layer onto the dried non-oriented fiber layer. At the laminating, the bundles of uni-directional fibers are guided in parallel relation to each other at regular intervals in a widthwise direction of the conveyor unit. The uni-directional and non-oriented fiber layers, which are laminated one upon the other, are supplied to a needler and are needled thereby, to form the glass fiber mat. The glass fiber mat is carried out by a delivery roller unit.
摘要:
In an element forming region (10) of a semiconductor substrate (1), there are provided a gate electrode (2), sidewall insulating films (4), impurity diffusion regions (5a and 5b) of a lower concentration having their one ends are overlapped with the side sections of the gate electrode (2), and impurity diffusion regions (6a and 6b) of a higher concentration having their one ends are overlapped with the side sections of the sidewall insulating films (4). In an element isolation region (7) of the semiconductor substrate, there are formed an electrostatic screening electrode (31) for element isolation and an insulating film (30) substantially enclosing the electrostatic screening electrode. By employing the electrostatic screening electrode (31) for element isolation in the LDD MOS transistor, there is obtained a semiconductor device of high performance and reliability which is free from intrusion of impurities from the element isolation region.
摘要:
Novel compounds, D-glucosaccharoascorbic acid and a salt thereof, are disclosed. The compounds, which are prepared by treating 2-keto-D-glucaric acid or an 2,3-O-acetal or ketal thereof with an acid, show excellent antioxidant activities. The agent containing the D-glucosaccharoascorbic acid or a salt thereof prevents effectively deterioration of foodstuffs.
摘要:
A dental chuckless handpiece of the compressed air drive type includes a body having a head in which bearings are attached to the upper and lower portions of a shaft provided with a turbine impeller, and a rotary member fixedly provided to the lower end of the shaft is mounted in place through the upper and lower bearings. At least portions of the body excepting the head is formed of a synthetic resin discriminably colored with a color including transparent color.