摘要:
A catalytic material and electrode of the present invention are characterized in that the catalyst carrier constituting the above-mentioned catalytic material and electrode includes at least one member selected from the group consisting of nitrogen atoms, oxygen atoms, phosphor atoms, and sulfur atoms. Since the cohesion or growth of catalyst grains can hereby be suppressed, it is possible to provide a highly active catalyst, a high-performance electrode, and a high-output-density fuel cell which uses the same.
摘要:
The present invention discloses compounds and compositions of formula (I): having inhibitory activity on activation of STAT6, wherein X represents quinoline, isoquinoline, quinazoline or imidazopyridine; Y represents phenyl, piperazine, pyridine, thiophene, thiazole, oxathiazole or oxathiadiazole; and variables Z, n, R1, R2, R3 and R4 are as defined in the claims.
摘要:
A high reliability emission source is constructed to secure the ohmic contact between a carbon nanotube and an electrically conductive base material, so as to ensure sufficient joining strength, and to provide for easy beam shaft adjustment. An electron microscope for realizing high resolution, high brightness, a reduction in sample damage due to a reduction in acceleration voltage, a reduction in cost and compactness, and an electron beam drawing device for realizing high definition, high efficiency, a reduction in cost and compactness in comparison with the conventional device, is achieved by using this high reliability emission source. In the emission source, the carbon nanotube is attached to the tip central portion of the electrically conductive base material through an electrically conductive joining material or an organic material by carbonization-processing the organic material by heat treatment, or by diffusive joining.
摘要:
Disclosed is an epoxy resin-based composite material formed by coating or impregnating a sheet-like reinforcement with an epoxy resin composition, followed by curing the resin composition. The epoxy resin composition comprises a compound having at least one epoxy group, a compound having an active hydrogen, a silicon compound having or generating hydroxy group bonded to silicon atom, and an organometallic compound. The epoxy resin may further comprise a maleimide compound or a powdery and granular material and a short fiber. The composite material ensures the properties of the epoxy resin material in terms of the mechanical strength, corrosion resistance, heat resistance and electrical properties. Besides, the composite material exhibits excellent crack resistance and impact resistance. Further, the epoxy resin composition contained in the composite material exhibits sufficient curing characteristics and, thus, the operation for forming the composite material is facilitated.
摘要:
A photo-curable epoxy resin type composition which comprises (a) an epoxy resin, (b) at least one compound selected from the group consisting of (i) a compound having a group, other than an imido group, which is represented by the formula --CONH and (ii) an aromatic amine, (c) an organic metal compound, where said metal is selected from the group consisting of titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, aluminum and zirconium; and (d) an organic silicon compound having at least one group selected from the group consisting of a peroxysilyl group and an o-nitrobenzyloxy group capable of forming a silanol group by irradiation with light. The photo-curable epoxy resin type composition according to this invention is capable of readily curing by light (ultraviolet ray in particular) and also capable of heat curing at a temperature of 150.degree. C. or more, and yet provides a cured product that is free of ionic impurities, does not corrode metallic materials which may be in contact with the composition, and displays excellent electrical properties.
摘要:
The biochemical oxygen demand (BOD) of an aqueous liquid contaminated with organic matter is determined by contacting a sample solution with elementary oxygen and with immobilized microorganisms capable of aerobically metabolizing the organic matter and of thereby consuming the oxygen. The rate of oxygen consumption under otherwise uniform conditions is as precise a measure of BOD as the conventional five-day test, but is determined within less than two hours, usually less than 30 minutes. A membrane-type oxygen-sensitive electrode is employed for sensing the rate of oxygen consumption and generates an output signal which is readily correlated with the BOD of the tested liquid.
摘要:
An epoxy resin-based composition contains epoxy resins and a catalytic amount of latent curing catalysts which comprise organosilicon compounds having hydrolyzable groups and aluminum compound having organic groups.
摘要:
The concentration of ammonia in an aqueous liquid is determined by contacting a sample of the liquid with dissolved oxygen and with a microbial electrode comprising an oxygen-sensitive electrode, a porous membrane, and nitrifying bacteria confined or immobilised by the membrane which are in direct or close contact with the diaphragm of the electrode. The rate of oxygen consumption under otherwise uniform conditions is as precise a measure of concentration of ammonia as a conventional colorimetric method and distillation-titration method.
摘要:
A heat-resistant resin composition having for its essential components (A) at least one maleimide compound obtained by reacting a condensation product of aniline, a phenolic compound and formaldehyde with an acid anhydride reactant containing at least 40 mole percent of maleic anhydride and (B) at least one compound selected from the group consisting of polyallyl phenyl ether compounds and polyallylphenolic compounds each having at least two allyl radicals.
摘要:
An optical device includes a light source section configured to emit light; a converging reflector configured to converge and reflect the light from the light source section to an irradiation surface having a curvature; and a position detector configured to detect a light-receptive position of the light reflected from the irradiation surface.