摘要:
A preform for a composite material which has high strength and excellent air permeability and hence is applicable to a high-speed die casting method and which is capable of forming a metal composite material having excellent mechanical properties by a high-speed die casting method. Also provided is a process for producing such a preform. Ceramic fibers or/and ceramic particles are mixed with a silica sol and calcium carbonate and sintered at a predetermined temperature to form a calcium/silicon sinter obtained from the silica sol and calcium carbonate. The calcium/silicon sinter coats the ceramic fibers or/and ceramic particles so that a preform having the fibers or/and the particles bound to each other by the calcium/silicon sinter is obtained. The preform for a composite material has high strength and excellent air permeability and is applicable to the high-speed die casting method capable of attaining high productivity.
摘要:
The lighting system according to the present invention includes an electrical wiring substrate in which a connector to a power source is formed, a plurality of LED chips mounted in a predetermined array pattern on the electrical wiring substrate, a deflection lens array disposed in proximity to the LED chips between the LED chip and the predetermined illumination region and a housing for receiving the electrical wiring substrate and the deflection lens array. A plurality of deflection lenses are integrally molded in the deflection lens array to lead lights from the LED chips to the predetermined illumination region in a state where the lights from the LED chips are superposed with each other. The lights emitted from the LED chips are collected in a state where they all are superposed in a common, single illumination region through the deflection lenses.
摘要:
According to an aspect of the invention there is provided an electronic apparatus including: a controller configured to execute a first application program and a second application program; a display module including a screen configured to simultaneously display a first window for the first application program and a second window for the second application program; an extraction module configured to extract information related to the first application program when the first and second windows are displayed on the screen and the first window is inactive; and a reference module configured to refer to the information in the second application program when the first and second windows are displayed on the screen and the second window is active.
摘要:
A preform for a composite material which has high strength and excellent air permeability and hence is applicable to a high-speed die casting method and which is capable of forming a metal composite material having excellent mechanical properties by a high-speed die casting method. Also provided is a process for producing such a preform. Ceramic fibers or/and ceramic particles are mixed with a silica sol and calcium carbonate and sintered at a predetermined temperature to form a calcium/silicon sinter obtained from the silica sol and calcium carbonate. The calcium/silicon sinter coats the ceramic fibers or/and ceramic particles so that a preform having the fibers or/and the particles bound to each other by the calcium/silicon sinter is obtained. The preform for a composite material has high strength and excellent air permeability and is applicable to the high-speed die casting method capable of attaining high productivity.
摘要:
A gold-cobalt based amorphous alloy plated film consisting of a homogeneous amorphous phase not having microcrystals is formed by electroplating conducted by use of an electroplating bath containing a gold cyanide salt in a concentration of 0.01 to 0.1 mol/dm3 in terms of gold, a cobalt salt in a concentration of 0.02 to 0.2 mol/dm3 in terms of cobalt, and a tungstate in a concentration of 0.1 to 0.5 mol/dm3 in terms of tungsten. The gold-cobalt based amorphous alloy plated film obtained consists of a homogeneous amorphous phase not having microcrystals, and has an enhanced hardness while retaining the good contact resistance and chemical stability intrinsic of gold on such levels as to be free of problems on a practical use basis; therefore, the gold-cobalt based amorphous alloy plated film is effective for use as a contact material in electric and electronic component parts such as relays.
摘要:
Organic borates having the formula: The borates are highly soluble in solvent of low dielectric constant. Also disclosed are nonaqueous electrolytes made from these organic borates; lithium secondary batteries with improved high-temperature storage characteristics; and electric appliances that comprises the battery and are free of protection circuits.
摘要:
An electroless gold plating solution is provided in which an amount of gold deposited by a displacement reaction is at least 15 μg/cm2, and the electroless gold plating solution includes a reducing agent that is oxidized by gold, and a reducing agent that is of the same type as or is a different type from the above reducing agent and is oxidized by a substrate metal. The solution can form a uniform gold coating having good adhesion and low porosity in one step.
摘要翻译:提供一种无电镀金液,其中通过置换反应沉积的金的量为至少15mug / cm 2,并且无电镀金液包括被金氧化的还原剂和还原剂, 与上述还原剂具有相同类型或不同的类型,并被基底金属氧化。 该溶液可以在一个步骤中形成具有良好粘附性和低孔隙率的均匀金涂层。
摘要:
Electrophotographic transfer paper having a coating layer provided on at least one surface of base paper and pigments and adhesive agents as main components, wherein resistivity (VR) and surface resistivity (SV) of electrophotographic transfer paper after the humidity has adjusted to 10.degree. C., 30% RH for 12 hours satisfy the expression Log(VR/SR).ltoreq.1.5. Using such electrophotographic transfer paper, occurrence of discharge mark and occurrence of density irregularity in a high-density image region are prevented to thereby make it possible to provide electrophotographic transfer paper excellent in fixing characteristic, nonshowthrough, partial deletion and generation of paper dust.
摘要:
An electric motor, which is housed with a pulse signal generator for generating a pulse signal according to rotation of an output shaft and the pulse signal generator is composed of a plate provided with a conductor plate having a plurality of conductive parts disposed annularly with predetermined spaces and a contactor to be a contacted slidingly with the conductive parts of the conductor plate.
摘要:
Electrophotographic transfer paper of the present invention satisfies at least one of expression of L.sub.MD /H.sub.MD .gtoreq.60 and L.sub.CD /H.sub.CD .gtoreq.35, where MD represents a paper direction parallel to the movement direction of a paper machine, L.sub.MD (cm) represents stiffness in MD, CD represents a paper direction perpendicular to the movement direction of the paper machine, and H.sub.CD (%) represents expansivity in CD.