摘要:
A magnetic recording medium which is thermally stable and produces low media noise. By providing a plurality of intermediate layers made of a CoCr alloy of which saturation magnetic flux densities are controlled within a predetermined range, the magnetic recording medium simultaneously realizes both a high S/Nm and thermal stability.
摘要:
A power generation apparatus includes a permanent-magnet AC generator, a first converter for converting AC power into DC power, and a second converter for converting the DC power produced by the first converter into AC power. The first converter includes a unit for controlling active power and a unit for controlling reactive power and the second converter includes a unit for controlling a voltage of a DC system and reactive power or AC voltage of a power system.
摘要:
A power generation apparatus includes a permanent-magnet AC generator, a first converter for converting AC power into DC power, and a second converter for converting the DC power produced by the first converter into AC power. The first converter includes a unit for controlling active power and a unit for controlling reactive power and the second converter includes a unit for controlling a voltage of a DC system and reactive power or AC voltage of a power system.
摘要:
A composition has a durability to a sterilization treatment using vapor under high temperature and pressure and capable of transmitting or absorbing light. The composition comprises a group A including 15 to 23 mol % of lanthanum oxide, 3 to 8 mol % of gadolinium oxide, 3 to 8 mol % of tantalum oxide, and 8 mol % or less of yttrium oxide; a group B including 30 to 45 mol % of boron oxide, 20 mol % or less of silicon oxide, and 20 mol % or less of germanium oxide; zero mol % of alkaline metal oxide or alkaline earth metal oxide; and a group D including 0.3 to 15 mol % of niobium oxide and 3 to 15 mol % of zirconium oxide. A mol % ratio A/B between the group A and group B is 80% or more, and a dissolving-out rate of metal ion of the composition is 0.002×10−6 mol/hour or less per square centimeter. In case of applying the composition to an endoscope including an observation system and an illuminating system, an optical element disposed at the outer surface of the observation system and an optical element disposed at the outer surface of the illuminating system are formed of the composition.
摘要:
The invention relates to novel pyridocarbazole derivatives having highly selective action in inhibiting cyclic GMP-phosphodiesterase (hereinafter abbreviated as cGMP-PDE), processes for producing such derivatives, agents containing at least one of such derivatives as an active ingredient for preventing and/or treating pulmonary hypertension, ischemic heart diseases or diseases against which the cGMP-PDE inhibitory action is effective, and intermediates useful for the production of pyridocarbazole derivatives.
摘要:
In a flyback transformer, an insulating cover is interposed between a main body casing and a focusing pack casing. A through-hole is formed through a ceramic resistor accommodated in the focusing pack casing. A fixing hole is formed through the insulating cover in a coaxial relationship with the through-hole. A slider is fixed on a rotatable knob for a variable resistor, which is supported on the focusing pack casing. One of two tongues of the slider is maintained in contact under pressure with a variable resistor of the ceramic resistor, and the other tongue is arranged coaxially with the fixing hole and is maintained in contact under pressure with a wire-shaped output terminal. The terminal is press-fitted in the fixing hole. Another flyback transformer is also disclosed, which comprises a cylindrical holder portion. An exposed portion of a conductor of a voltage output lead wire is formed in an L-shaped bent portion which is press-fitted in the holder portion, whereby the L-shaped bent portion is resiliently held at a basal portion thereof. A conductive rubber is connected to an output terminal. A free end portion of the conductor extends out from the holder portion into the conductive rubber.
摘要:
An optical system for endoscopes is provided with an inhomogeneous lens configured, as a relay lens, so that refractive index reduces progressively in going from a center portion toward a periphery and at least one of an entrance end face and an exit end face satisfies the following condition:0.15 P
摘要翻译:用于内窥镜的光学系统设置有不均匀透镜,其被配置为中继透镜,使得折射率从中心部分朝向周边逐渐减小,并且入射端面和出射端面中的至少一个满足以下 条件:0.15 P
摘要:
A method and apparatus for testing an integrated electronic device wherein the integrated electronic device to be tested is placed on a sample table. A predetermined position of the integrated electronic device is irradiated with the primary charged beam. A substrate current flowing through a substrate of the integrated electronic device is measured upon radiation of the primary charged beam, and then a potential of the predetermined position irradiated with the primary charged beam is nondestructively measured in accordance with secondary electrons emitted from the predetermined position. A function of the integrated electronic device is evaluated in accordance with the substrate current and the predetermined position potential. The function to be evaluated include leakage characteristics and a capacitance.
摘要:
In a characteristic test apparatus for an electronic device, a number of voltage supply beams are radiated onto predetermined irradiation positions of the electronic device placed on a sample table. In addition, a potential measuring beam is radiated onto a number of irradiation positions including the predetermined irradiation positions of the voltage supply beams. A secondary electron signal based on the potential measuring beam is detected to measure a potential. When the irradiation position of the potential measuring beam coincides with that of the voltage supply beam, the voltage supply beam is controlled to adjust a potential at the irradiation position to a set value by controlling, e.g., an acceleration power source for the voltage supply beam. When the irradiation position of the potential measuring beam is different from that of the voltage supply beam, a potential at this position is measured. Then, characteristics of the electronic device are calculated based on the obtained potentials at the respective irradiation positions.