摘要:
Pharmaceutical composition in dosage unit form, comprising a therapeutically effective amount of 24,25-dihydroxycholecalciferol and a pharmaceutically acceptable carrier. The compound of 24,25-dihydroxycholecalciferol has anti-hypercalcemic activity, anti-ulcer activity, activity of preventing reduction of immunity, activity of controlling magnesium-metabolism, anti-hyperphosphatemic activity, activity of controlling blood sugar level and anti-tumor activity.
摘要:
The fungi belonging to the Coriolus genus is first extracted with water or a dilute alkaline solution and then further extracted stepwise by using alkaline solutions with gradually increased concentrations to obtain a nitrogen-containing polysaccharide having an anti-tumor activity in a high yield.
摘要:
A semiconductor laser includes: a stacked body having an active layer including a quantum well layer, the active layer having a cascade structure including a first region capable of emitting infrared laser light with a wavelength of not less than 12 μm and not more than 18 μm by an intersubband optical transition of the quantum well layer and a second region capable of relaxing energy of a carrier alternately stacked, the stacked body having a ridge waveguide and being capable of emitting the infrared laser light; and a dielectric layer provided so as to sandwich both sides of at least part of side surfaces of the stacked body, a wavelength at which a transmittance of the dielectric layer decreases to 50% being 16 μm or more, the dielectric layer having a refractive index lower than refractive indices of all layers constituting the active layer.
摘要:
According to one embodiment, a semiconductor light emitting device includes a substrate, a first semiconductor layer, a light emitting layer, a second semiconductor layer, and a translucent electrode. The substrate includes a first region provided along periphery of a first major surface and a second region provided on center side of the first major surface as viewed from the first region. The first semiconductor layer is provided on the first major surface of the substrate. The light emitting layer is provided on the first semiconductor layer. The second semiconductor layer is provided on the light emitting layer. The translucent electrode is provided on the second semiconductor layer. A reflectance in the second region is higher than a reflectance in the first region.
摘要:
According to one embodiment, a semiconductor light-emitting device having high light extraction efficiency is provided. The semiconductor light-emitting device includes a light transmissive substrate; a nitride semiconductor layer of a first conduction type formed on or above a top face side of the light transmissive substrate; an active layer made of nitride semiconductor formed on a top face of the nitride semiconductor layer of the first conduction type; a nitride semiconductor layer of a second conduction type formed on a top face of the active layer; a dielectric layer formed on a bottom face of the light transmissive substrate and having a refractive index lower than that of the light transmissive substrate; and a metal layer formed on a bottom face of the dielectric layer. And an interface between the light transmissive substrate and the dielectric layer is a uneven face, and an interface between the dielectric layer and the metal layer is a flat face.
摘要:
A piezoelectric driven type vibratory feeder having a working mass member that vibrates stably over an entire area of the working mass member is disclosed. The piezoelectric driven type vibratory feeder includes a base, a plurality of first plate springs, with a lower end portion of each of the plurality of first plate springs being secured to the base. A working mass member connected to an upper end portion of each of the plurality of first plate springs and supported at the base to enable the working mass member to vibrate. The piezoelectric feeder also includes a plurality of second plate springs, a piezoelectric device bonded to at least one surface of each of the plurality of second plate springs. An alternating voltage is applied to each piezoelectric device whereby each second plate spring undergoes bending vibration and causes the working mass member to vibrate so that an object is transported on the working mass member.
摘要:
In a pyrometallurgical smelting method of copper, the copper-ore and auxiliary fuel, such as carbonaceous material, is blown through an ore-concentrate burner into a reaction shaft. In an improved pyrometallurgical smelting of copper, the carbonaceous material is used to reduce the Fe.sub.3 O.sub.4 contained in the slag. The present invention provides an improved method for reducing the Fe.sub.3 O.sub.4 even in a case at a decreased amount of auxiliary fuel is to be decreased. The carbonaceous material is blown into a lower portion of the reaction shaft where the oxygen partial pressure is low.
摘要翻译:在铜的火法冶炼方法中,将铜矿石和辅助燃料(例如碳质材料)通过精矿燃烧器吹入反应轴。 在铜的改进的火法冶炼中,碳质材料用于还原炉渣中所含的Fe 3 O 4。 本发明提供了减少Fe 3 O 4的改进方法,即使在减少辅助燃料量的情况下也是如此。 碳质材料被吹入氧分压低的反应轴的下部。
摘要:
In a flash smelting method of copper, a carbonaceous material, whose grain size is under 100 um and is in a proportion of 65% or more, and whose grain size is from 44 to 100 .mu.m and is in a proportion of 25% or more, and which has 80% or more of a fixed carbon content, is charged into a reaction shaft of a flash smelting furnace. It is possible to prevent the excessive formation and excessive reduction of Fe.sub.3 O.sub.4 in the slag. Copper loss, erosion of refractories and boiler trouble can be prevented.
摘要:
Disclosed is a pharmaceutical composition containing an aminobenzoic acid derivative as an active ingredient represented by the following general formula: ##STR1## wherein .sup.1 R donotes one member selected from the group consisting of the residual groups formed by removing OH at 1(alpha) or 1(beta) position from arabinose, glucose, galactose and mannose, or a pharmaceutically acceptable salt thereof.