摘要:
A fluid-filled bushing comprises at least two sleeves disposed in concentric relation to each other, a resilient member interposed between the two sleeves and having a substantially annular recess defined in an outer circumferential surface thereof, a partition disposed in the annular recess and having holes defined therein and defining first and second substantially annular fluid chambers in the annular recess which selectively communicate with each other through the holes of the partition, a fluid filled in each of the first and second fluid chambers, and a valve for variably restricting the flow of the fluid between the first and second fluid chambers.
摘要:
A method for producing cycloolefins useful as an intermediate material for lysine, caprolactam, adipic acid, medicines, agricultural chemicals, dyes and the like, which comprises partial hydrogenation of aromatic hydrocarbons with hydrogen gas in the presence of a catalyst composed of barium sulfate which is a carrier as well as ruthenium and at least one metal selected from the group consisting of iron, cobalt, silver and copper supported on said barium sulfate, and water.
摘要:
A novel scuff-masking composition for glass vessels comprises a specific organopolysiloxane, a curing catalyst therefor, and a surfactant and is highly effective in a method of masking scuffs on glass vessels, which comprises providing the composition on the scuffs and curing the coated composition.
摘要:
The invention provides a novel class of organosilane compound represented by the general formulaX--CF.sub.2 --CF.sub.2).sub.n CH.sub.2 --CH.sub.2 --Si(OCOR.sup.2).sub.m (R.sup.1).sub.3-m'in which R.sup.1 is a monovalent hydrocarbon group having from 1 to 6 carbon atoms, R.sup.2 is a monovalent hydrocarbon group having from 7 to 21 carbon atoms, X is a hydrogen atom or a fluorine atom, n is a positive integer not exceeding 4 and m is a positive integer not exceeding 3. The fluoroalkyl-containing acyloxy silanes are useful as an additive ingredient in a synthetic resin composition for shaping articles or a coating composition with a synthetic resin as the vehicle when improved lubricity is desired on the surface of the shaped article or on the coated surface.
摘要:
A scuff-masking composition for glass vessels comprises a specific organopolysiloxane and a curing catalyst therefor, and is highly effective in a method of masking scuffs on glass vessels, which comprises providing the composition on the scuffs and curing the coated composition.
摘要:
A suspension device for front wheels in automotive vehicles having front drive shafts of mutually different shaft length, in which unbalanced rotatory moment to be imparted to the king pin means at the left and right sides of the wheels caused by a difference in the angles of inclination at the left and right drive shafts is compensated by providing a difference in the center offset quantities at both left and right wheels.
摘要:
The coating composition is prepared by partial co-hydrolysis and co-condensation of a mixture comprising an organotrialkoxysilane or its combination with a tetraalkoxysilane, a fluoroalkylalkoxysilane and a hydroxy-endblocked diorganopolysiloxane in the presence of an acid catalyst. The organopolysiloxanes thus prepared are suitable for coating plastic surfaces to produce a coating on the surfaces, the cured coating film having hardness as well as flexibility sufficient to ensure a very strong resistance to swelling, dissolution or corrosion by attacks of solvents and chemicals.
摘要:
[Problems] Prior art technology has a problem in that when a plant is cultivated for a long period of time on a polyvinyl alcohol (PVA) film having its lower surface positioned in contact with a nutrient fluid, plant roots that have formed penetrate through the film.[Means to solve the problems] A plant cultivation system wherein the PVA film has an equilibrium degree of swelling in the range of from 125 to 250% as measured in water at 30° C. and has a loss tangent (tan δ) in the range of from 0.005 to 0.2 as measured in an equilibrium swollen state in water at 30° C., and a method for cultivating a plant by using this plant cultivation system.[Industrial applicability] Plant cultivation can be performed for a long period of time while avoiding infection by bacteria and the like causative of plant diseases. Therefore, the present invention is useful in, e.g., agriculture and the manufacture of pharmaceuticals.
摘要:
A semiconductor storage apparatus includes: a word line coupled to a cell transistor; a first capacitor having a first end coupled to the word line; a boost driver coupled to a second end of the first capacitor; a voltage-drop circuit configured to generate a given voltage drop between a first voltage and a second voltage; and a boost-drive circuit configured to boost a voltage at the second end from the second voltage to the first voltage.
摘要:
A semiconductor memory device formed on a semiconductor chip includes first memory arrays, a plurality of second memory arrays, a first voltage generator, and first bonding pads. The semiconductor chip is divided into first, second and third rectangle regions and the third rectangle region is arranged between the first rectangle region and the second rectangle region. The first memory arrays are formed in the first rectangle region. The second memory arrays are formed in the second rectangle region. The voltage generator and first bonding pads are arranged in the third rectangle region. The first bonding pads are arranged between the first rectangle region and the voltage generator and no bonding pads are arranged between the voltage generator and the second memory arrays.