摘要:
A high-output semiconductor laser element has one of a Cr/Pt/Au electrode and Cr/Ni/Au electrode as a P-type electrode to provide an electrode construction that is robust with respect to heat, high in reliability and stable for a long period of time. The P-type electrode is disposed on an N-type substrate via an epitaxial layer and defines a stripe 41 having a width of 100 .mu.m or more.
摘要:
A material and method for bonding a semiconductor device to a pedestal, which can obtain a sufficient bonding strength and stable electric contact, are disclosed. On an n-type electrode constituting an ohmic electrode for a semiconductor laser device are formed a Ni layer and an Au-Sn solder layer. Then, the solder layer is melted and bonded to a heat sink provided with Au-plating. The film thickness of the Ni layer is set to approximately 500 .ANG. or more. When the solder layer is melted, Ni in the Ni layer diffuses into the solder layer and Sn in the solder layer diffuses into the Ni layer. By this mutual diffusion, bonding strength and wettability between the semiconductor device and pedestal can be improved. In addition, by setting the composition ratio of Ni layer to the Au-Sn solder layer to 1.3 wt % or more and under 10 wt %, bonding can be performed at a lower melting point and concurrently a higher bonding strength can be obtained.
摘要:
An air conditioning system comprising a gas-impermeable wall defining a space for air conditioning, and a selective separating member disposed in the wall as a part of the wall, having a function of allowing preferential permeation of oxygen and carbon dioxide and at the same time, blocking the permeation of hydrocarbon, nitrogen oxide, sulfur oxide and a fine solid component, in which the selective separating member comprises an organic polymer and satisfies the relationship of P1/P2>10 wherein P1 is the permeation coefficient of oxygen and carbon dioxide and P2 is the permeation coefficient of hydrocarbon, nitrogen oxide, sulfur oxide and a fine solid component.
摘要翻译:一种空调系统,包括限定用于空调的空间的不透气壁和作为壁的一部分设置在壁中的选择性分离构件,具有允许氧气和二氧化碳优先渗透的功能,同时 阻止烃,氮氧化物,硫氧化物和细固体组分的渗透,其中选择性分离构件包含有机聚合物,并且满足P 1 / P 2> 10的关系,其中P 1是氧的渗透系数, 二氧化碳和P 2是烃,氮氧化物,硫氧化物和细固体成分的渗透系数。
摘要:
Disclosed is a reality glasses headset device for holding an electronic device without contacting the face of a user. The headset device includes a headband, first and second arms, and a holding unit to receive an electronic device. The headband is worn around the user's head. The headband includes a plurality of holes along a first side, and a second plurality of holes along a second, opposite side. The arms are configured to pivotably connect to holes on opposite sides of the headband. The holding unit includes a frame, a lens frame unit, a plurality of aspherical lenses, and an electronic device mounting unit. The frame has a left wall attached to the first arm, a right wall attached to the second arm, a top wall and a bottom wall. The arms are configured to maintain a position of the holding unit away from the user's face.
摘要:
A method for setting clearance between a tappet screw and a valve wherein the movement of the valve during opening and closing is monitored and used to calculate further linear movement of the tappet screw to provide a desired tappet clearance. In one embodiment, a predetermined imaginary zero point, which falls in a band of linear displacement during closing of the valve, is used to determine a distance the tappet screw must be further moved to provide the desired tappet clearance. In another embodiment, plural valve displacement measurements are taken and the true zero point or valve closed position, and further movement of the tappet screw to provide the desired tappet clearance is determined based upon these plural measurements. In a further embodiment, movement of the valve head is directly monitored and used to set the tappet clearance.
摘要:
A reforming device includes a reforming part that subjects a hydrocarbon-based raw material to be reformed to a reforming reaction to form a reducing agent to be supplied to a reducing catalyst for reducing nitrogen oxide selectively. The reforming part has a reforming reaction region through which the raw material to be reformed passes and is reacted with supplied hydrogen atoms supplied so as to be reformed to the reducing agent. For example, a hydrogen permeable membrane having a first surface and a second surface may be provided in the reforming part to permeate hydrogen atoms from the first surface to the second surface and to produce the hydrogen atoms on the second surface. The reforming device can be suitably used for an exhaust gas control system for cleaning exhaust gas, for example.
摘要:
A reforming device includes a reforming part that subjects a hydrocarbon-based raw material to be reformed to a reforming reaction to form a reducing agent to be supplied to a reducing catalyst for reducing nitrogen oxide selectively. The reforming part has a reforming reaction region through which the raw material to be reformed passes and is reacted with supplied hydrogen atoms supplied so as to be reformed to the reducing agent. For example, a hydrogen permeable membrane having a first surface and a second surface may be provided in the reforming part to permeate hydrogen atoms from the first surface to the second surface and to produce the hydrogen atoms on the second surface. The reforming device can be suitably used for an exhaust gas control system for cleaning exhaust gas, for example.
摘要:
A heat transport fluid passage device for a heat transport circuit has a wall defining a passage through which a heat transport fluid flows. The heat transport fluid contains a solvent made of water or an organic substance and fine particles dispersed in the solvent. A hydrophobic membrane is formed on a surface of the wall.
摘要:
A heat transport fluid passage device for a heat transport circuit has a wall defining a passage through which a heat transport fluid flows. The heat transport fluid contains a solvent made of water or an organic substance and fine particles dispersed in the solvent. A hydrophobic membrane is formed on a surface of the wall.
摘要:
An air conditioning system comprising a gas-impermeable wall defining a space for air conditioning, and a selective separating member disposed in the wall as a part of the wall, having a function of allowing preferential permeation of oxygen and carbon dioxide and at the same time, blocking the permeation of hydrocarbon, nitrogen oxide, sulfur oxide and a fine solid component, in which the selective separating member comprises an organic polymer and satisfies the relationship of P1/P2>10 wherein P1 is the permeation coefficient of oxygen and carbon dioxide and P2 is the permeation coefficient of hydrocarbon, nitrogen oxide, sulfur oxide and a fine solid component.