Abstract: This invention relates to a color developing solution for processing of a light-sensitive silver halide color photographic material which comprises containing a compound represented by the following formula [I] and at least one compound selected from a compound represented by the following formula [II] and a compound represented by the following formula [III], and a processing method of a light-sensitive silver halide color photographic material, which comprises, after imagewise exposure of a light-sensitive silver halide color photographic material, carrying out processing including at least a color developing step, wherein the light-sensitive silver halide color photographic material has silver halide emulsion layers containing silver halide grains substantially comprised of silver chloride, and a color developing solution used in the color developing step contains the compound represented by the following formula [I] and at least one compound selected from the compound represented by the following formula

Abstract: A method for forming a fiber-reinforced metal sheet including the steps of preparing a wire preform in which fibers and a matrix are combined together; arranging regularly a plurality of wire preforms in a predetermined direction in a side-by-side relation; irradiating simultaneously using a CO.sub.2 laser beam, and a YAG laser beam the regularly arranged wire preforms to elevate the temperature of the wire preforms; and pressing the wire preforms by rollers while the wire preforms are at the elevated temperature.

Abstract: A contact for a vacuum interrupter, of a material containing copper (Cu), chromium (Cr), molybdenum (Mo), and either tantalum (Ta) or niobium (Nb), has splendid interrupting ability and breakdown voltage ability.

Abstract: A silver halide light-sensitive photographic material which is excellent in the aptitude for rapid processing and highly sensitive and of which the sensitivity and gradation are stable against the change of the temperature at the time of exposure is disclosed. The silver-halide photographic material comprises a support and, provided thereon, a silver halide emulsion layer, wherein said silver halide emulsion layer contains silver chloro-halide grains containing not less than 90 mole % of silver chloride and having been chemically sensitized in the presence of a labile sulfur compound and a gold compound, and an organic compound of which solubility product (Ksp) with a silver ion is not more than 1.times.10.sup.11.0, said organic compound having been added to said silver halide emulsion layer during the period between after the formation of said silver halide grains and before the completion of the chemical sensitization thereof.

Abstract: A silver halide photographic light-sensitive material is disclosed which is decreased in variation of light-sensitivity caused by a change in environmental humidity and a prolonged storage of the photographic material.

Abstract: A rapidly processable silver halide photograpic light-sensitive material is disclosed, which comprises a support having thereon at least one silver halide emulsion layer comprising, (a) silver halide grains comprising not less than 80 mol % of silver chloride, (b) at least one optical sensitizing dye represented by the following general formula [I] and (c) at least one compound represented by the following general formula [II]. The photographic material has a high sensitivity, lowered fog and excellent storage stability.

Abstract: A photographic material having an excellent rapid processability, a high sensitivity and a less sensitivity variation due to a change of standing of the silver halide emulsion in the course of preparation of the light-sensitive material, and its preparation process are disclosed. The silver halide photographic light-sensitive material comprises a support bearing at least one silver halide emulsion layer thereon, and at least one silver halide emulsion layer contains highly chloride-containing silver halide grains having a silver chloride content of not less than 90 mol %, a water-soluble bromide of from 0.05 mol % to 2 mol % per mol of silver halide and a high boiling organic solvent having a dielectric constant of not higher than 6.0.

Abstract: A silver halide color photographic material improved in sensitivity, gradiation and maximum density when the material is treated with a rapid processing. The silver halide color photographic material comprises a support and photograhic component layers including at least one silver halide emulsion layer comprising (a) silver halide grains comprising not less than 80 mol % of silver chloride, (b) a gold compound in an amount of from 5.times.10.sup.-7 to 5.times.10.sup.-3 mol per mol of silver halide contained in said silver halide emulsion layer, (c) a sulfur sensitizer and (d) a spectral sensitizing dye represented by the following general formula [I]: ##STR1## wherein X.sub.1, X.sub.2, X.sub.3 and X.sub.4 are a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group or a hydroxy group, respectively; R.sub.1 and R.sub.2 are an alkyl group, respective;y X.sup..crclbar. is a counter anion and n is 0 or 1.

Abstract: A process for forming a dye image is disclosed, in which a silver halide photographic light-sensitive material having a silver halide emulsion layer is developed by a color developer comprising an aromatic primary amine and an N,N- dialkylhydroxylamine. The silver halide emulsion layer contains a hydrophobic dye-forming coupler and a compound selected from the group consisting of compounds having a sterically hindered phenol group and polyalkylpiperidine compounds or the water soluble acid salt thereof. The dye image having a high maximum density and a high light-fastness can be obtained when the color developer without benzyl alcohol is used.

Abstract: A contact material for a vacuum circuit breaker of excellent current breaking property and voltage withstand capability can be made from an alloy composed of copper and boride of tantalum, or an alloy composed of copper, boride of tantalum and titanium, or an alloy composed of copper, chromium, and boride of tantalum.

Abstract: A silver halide photographic light-sensitive material which is improved on fog without decreasing photosensitivity. The photographic material comprises a support and a photographic structural layer provided thereon containing at least one silver halide emulsion layer and at least one non-light-sensitive layer. A nitrogen-containing heterocyclic mercapto compound is contained at least two layers of the photographic structure layer, and at least one of these mercapto compound-containing layer is a non-light-sensitive layer.

Abstract: The present invention provides a contact material for a vacuum circuit breaker containing therein copper (Cu) and chromium (Cr) with further addition of at least one kind of boride selected from borides of chromium (Cr), molybdenum (Mo) and tungsten (W). Such contact material possesses remarkable advantages of having large current breaking capability and high voltage withstand capability.

Abstract: Contact material for vacuum circuit breaker according to the present invention contains (1) copper, (2) molybdenum, and (3) niobium or tantalum.

Abstract: A contact material for a vacuum circuit breaker consists essentially of copper as the basic component, and, as the other components, 35% by weight or below of chromium and 50% by weight or below of niobium, the total quantity of chromium and niobium in said contact material being 10% by weight and above.

Abstract: A contact material for use in a vacuum circuit interrupter which simultaneously provides superior current interrupting performance and breakdown voltage. The contact material of the invention includes components of copper, tantalum and at least one of cobalt and iron. Cobalt or iron should be present in an amount of 50 wt % or less, while the combination of tantalum and cobalt or iron should be present in an amount of at least 10 wt %. A fourth component of at least one of titanium, zirconium and aluminum may be added. Also, there may be included a fifth component containing at least one of a low melting point metal, alloys of a low melting point metal, intermetallic compounds of a low melting point metal, and oxides thereof, with the low melting point metal being at least one of bismuth, tellurium, antimony, thallium, lead, selenium, cerium and calcium in an amount of not more than 20 wt %.

Abstract: The disclosed electrode composition for a vacuum switch comprises copper, as a principal ingredient, a low melting point metal such as Bi, Pb, In, Li, Sn or any of their alloys, in a content not exceeding 20% by weight, a first additional metal such as Te, Sb, La, Mg or any of their alloys and a refractory metal such as Cr, Fe, Co, Ni, Ti, W or any of their alloys in a content less than 40% by weight.

Abstract: A contact material for a vacuum circuit breaker consists essentially of copper as the basic component, and, as the other components, 35% by weight or below of chromium and 50% by weight or below of tantalum, the total quantity of chromium and tantalum in said contact material being 10% by weight and above.

Abstract: The disclosed electrode composition for a vacuum switch comprises copper, as a principal ingredient, a low melting point metal such as Bi, Pb, In, Li, Sn or any of their alloys, in a content not exceeding 20% by weight, a first additional metal such as Te, Sb, La, Mg or any of their alloys and a refractory metal such as Cr, Fe, Co, Ni, Ti, W or any of their alloys in a content less than 40% by weight.

Abstract: A contact for a vacuum circuit breaker is disclosed which contains copper as a first component and also at least two elements of the group of chromium, molybdenum, and tungsten as the other components. Each of these other components is contained in an amount not greater than 40% by weight.

Abstract: A method for producing a silver halide photographic light-sensitive material having on a support thereof at least one layer formed of an emulsion containing light-sensitive silver halide particles sensitized by a sensitizing dye comprising the steps of adding a first sensitizing dye to an emulsion containing silver halide particles, during the chemical ripening of the silver halide particles, to sensitize the silver halide particles; adding a second sensitizing dye to the emulsion containing the sensitized silver halide particles, after the chemical ripening of the silver halide particles, to form a coating liquid; and coating a support with the coating liquid to produce a silver halide photographic light-sensitive material.