摘要:
Noise generated at high frequencies at the time of simultaneous switchings of logical circuits is reduced by lowering an inductance from LSI to a capacitor formed on a substrate. The capacitor is formed to ensure that an inductance from a bonding pad for the LSI loaded on the substrate to an electrode of the capacitor is 0.05 nanohenry. The lower inductance from the LSI to the capacitor allows a reduction in the amount of the noise at high frequencies among those generated in power supply system, whereby the rising time of signals is made shorter, and the speed of arithmetic operation can be increased.
摘要:
An ambulatory worker toy having a wind-up spring motor within a housing which includes a head casing movably mounted on a torso casing from which fixed and movable arm members extend. Two movably mounted leg members are connected to the spring motor via an ambulatory transmission mechanism to periodically raise and shift the leg members to propel the toy sideways in a walking motion. A tool movement transmission mechanism driven by the spring motor moves the movable arm member and a toy broom attached thereto to simulate a sweeping action. Finally, an oscillatory transmission mechanism driven by the spring motor periodically pumps an internal whistle mechanism and moves the head casing in simulation of a whistling worker. The net effect of the various transmission mechanisms is to present a toy which is powered by a single spring motor but which nevertheless simulates a sweeping worker which whistles as it walks.
摘要:
In order to inhibit the connection failure due to the degradation of the connection interface strength of the electrode pad and the warp thereof in the semiconductor device having an electrode pad, a metal layer formed on the electrode pad, and a metal bump formed on the metal layer, in the present invention, gold (Au) is contained in the metal layer, the metal bump is made of solder mainly made of Sn and designed to have an average height H of 100 μm or less per unit area in the electrode pad, and the concentration of Au of the metal layer dissolved in the solder is set to 1.3×10−3 (Vol %) or less. More preferably, the metal bump contains palladium (Pd), and the solder coating for forming the metal bump on the electrode pad is performed by using the dipping and the paste printing in combination.
摘要:
There is provided a method of producing reduced iron compacts with high crushing strength, low powderization and a high reduction rate in a solid reduction-type firing reducing furnace such as a rotary hearth-type reducing furnace, as well as reduced iron compacts obtained by the method and a method of melt-reducing the reduced iron compacts in a blast furnace. In the method of producing reduced iron compacts, the atomic molar ratio of carbon to oxygen chemically combined with iron, manganese, nickel, zinc and lead, in raw material powder comprising a mixture of iron oxide-containing powder and carbon-containing powder, or the ferric oxide content of the raw material powder, is in a specified range, the compact is produced so as to give a porosity in a given range, and the compact is put on the hearth of a reducing furnace equipped with a rotating hearth and is heated for heating reduction by the heat from the combustion gas in the upper part of the furnace, for firing reduction at above a prescribed temperature.
摘要:
A characteristic changing device is adopted in the inventive brake control system for the vehicle. The characteristic changing device sets a differential pressure between a first brake hydraulic pressure which is applied to wheel cylinders and a second brake hydraulic pressure which is generated by a master cylinder so that the first brake hydraulic pressure is higher than the second hydraulic pressure when the second brake hydraulic pressure is reduced. Due to the differential pressure set as described above, the first brake hydraulic pressure enough to exhibit effective braking force is kept even if the second brake hydraulic pressure is reduced.
摘要:
In an inset light 1 comprising a cylindrical base 3 installed in a PC pavement 2, and a lamp body 5 held in the upper part of the base 3 for emitting light outside of the pavement surface, protruded deformations 6 are formed on the outer circumference of the base 3 so as to receive the load applied on the lamp body 5 from above at the PC pavement 2 around the base 3. As a result, concentration of load in the lower part of the base 3 is prevented. Further, to alleviate the prestress shortage of the PC pavement in the lower part of the base 3, a shock absorber 7 is provided in the lower end outer peripheral edge of the base 3. As a result, lowering of strength of the PC pavement 2 in the lower part of the base 3 is suppressed. Accordingly, if a heavy load of aircraft or the like is applied, the inset light capable of preventing sinking while suppressing brittleness of the PC pavement in the lower portion of the base can be presented.
摘要:
The present invention provides a radiation curable resin composition and method of production therefor; the present composition has wide applications as an ink, coating or the like, is dilutable in water or an organic solvent, and forms a coating which has excellent hardening characteristics and adherence to a substrate, as well as superior resistance to heat, chemicals and boiling, this resin composition may be redissolved with water or an organic solvent prior to hardening; which have a number average weight of 500 to 50,000, characterized in that the aprotic ammonium salt represented by general formula 1 is contained in the resin in the amount of 0.1 to 4.0 mol/kg. ##STR1## (In the formula, X is an organic group which is bound to the main chain and includes a hydrocarbon of 0 to 3 carbon atoms, an ester and an amide; R1 and R2, which may be the same or different, represent a hydrocarbon of 1 to 8 carbons which may be substituted with a hydroxyl group, ester group, alkoxy group or halogen atom, wherein R1 and R2 may bond together, with bonding occurring between the nitrogen atoms of R1 and R2 to form a heterocyclic ring; R3 indicates a hydrogen atom or a hydrocarbon of 1 to 18 carbon atoms that has one or more polymerizable unsaturated double bonds and may be substituted with a hydroxyl group, ester group, alkoxy group, or halogen atom; and R4, R5 and R6, which may be the same or different, represent a hydrogen atom or a hydrocarbon of 1 to 18 carbons which may be substituted with a hydroxyl group, ester group, alkoxy group, or halogen atom, wherein R5 and R6 may bond together to form a heterocyclic ring.)
摘要:
A method of reduction treatment of metal oxides characterized by using as a material a powder containing metal oxides and containing alkali metals and halogen elements and further, in accordance with need, carbon, mixing said material with water to produce a slurry, then dehydrating this and charging the dehydrated material, mixed with another material in accordance with need, into a rotary hearth type reduction furnace for reduction.
摘要:
The present invention provides a reducing furnace of the rotary hearth-type and a method for reducing a metal oxide simplified in the process from dehydration to molding, according to which a moisture-rich powdery raw material is reduced at low cost. The present invention also provides an operation method whereby dusts or sludge generated in the refining or processing of metal are economically recycled. A powdery mixture having a moisture content of 100% or higher relative to the total mass of a metal oxide-containing powder and a carbon-containing powder is made into a slurry and mixed by stirring. Thereafter, the slurry is dehydrated to a moisture content of 16 to 26% and compression-molded into articles. The cylindrical or granular shaped articles having a thickness or diameter of 30 mm or less thus obtained are fed to a zone the atmospheric temperature of which is 1170° C. or lower in the furnace and reduced through calcination by a rotary hearth reducing furnace thereby to provide a metal.