摘要:
A waste heat recovering and cooling apparatus for an engine includes a water pump that ejects cooling water of an engine; an EGR cooler that cools EGR gas introduced into an intake pipe from an exhaust pipe of the engine by using some of the cooling water ejected from the water pump; an EGR valve that opens and closes the channel of the EGR gas passing through the EGR cooler; and a transmission warmer that heats lubricating oil of a transmission by the cooling water passing through the EGR cooler.
摘要:
A semiconductor element is mounted on a wiring circuit board in which a circuit has been formed. This semiconductor element is resin-encapsulated with a first encapsulating resin layer. Then, a second encapsulating resin layer is formed, on the outer circumference of the first encapsulating resin layer, from an epoxy resin composition containing the following components (A) to (D): (A) epoxy resin; (B) phenolic resin; (C) curing accelerator; and (D) at least one of the following particles (d1) and (d2): (d1) conductive particles whose surfaces are subjected to coating treatment with an insulating inorganic material; and (d2) magnetic particles whose surfaces are subjected to coating treatment with an insulating inorganic material.
摘要:
A magnetic powder 4 is produced by use of a plating mold M which is pattern-formed with an electrode range 10 corresponding to the shape of a magnetic powder 4 and an insulative range surrounding the periphery of the electrode range, precipitating films 40 of the magnetic material selectively in the electrode range through an electroplating and then peeling the films 40 from the plating mold. The flat magnetic powders 4 where are regular in piano shapes and diameters among or between powders or where average crystal grain diameters are 100 nm or smaller, are much dispersed into an insulative resin as a bonding agent.
摘要:
An improved process for producing maleic anhydride which comprises catalytically oxidizing benzene with a molecular oxygen-containing gas in the vapor phase in a multitubular heat-exchanger-type reactor. The process is characterized in thata catalyst-packed layer of the reactor is divided into a gas inlet side layer and a gas outlet side layer,the activity of the gas inlet side layer is controlled by adding at least one component selected from the group consisting of potassium, cesium, thallium and rubidium as a promoter or by decreasing the amount of phosphorus pentoxide (P.sub.2 O.sub.5) to be added in the catalytically active substance containing vanadium pentoxide, molybdenum trioxide and sodium oxide, andthe activity of the gas outlet side layer is increased by decreasing the amount of at least one component selected from the group consisting of potassium, cesium, thallium, rubidium, magnesium, calcium, strontium and barium or by not adding such a component from that in the catalyst, or by increasing the amount of phosphorus pentoxide (P.sub.2 O.sub.5) from the gas inlet side catalyst.
摘要翻译:一种生产马来酸酐的改进方法,其包括在多管式热交换器型反应器中在气相中用分子氧气体催化氧化苯。 该方法的特征在于将反应器的催化剂填充层分成气体入口侧层和气体出口侧层,通过加入至少一种选自以下的组分来控制气体入口侧层的活性: 钾,铯,铊和铷作为助催化剂或通过减少含有五氧化二钒,三氧化钼和氧化钠的催化活性物质中添加的五氧化二磷(P 2 O 5)的量,气体出口侧层的活性为 通过减少选自钾,铯,铊,铷,镁,钙,锶和钡中的至少一种成分的量来增加,或者不将这样的成分从催化剂中添加,或者通过增加 来自气体入口侧催化剂的五氧化二磷(P 2 O 5)。
摘要:
A radio wave absorbent capable of absorbing radiowaves in the space saving and efficient manner and capable of coping with up to high frequency bands, as well as a manufacturing method thereof are provided. In a radio wave absorbent in which magnetic particles comprising a soft magnetic metal material are mixed with a matrix of a polymeric material or ceramics, the magnetic particles are formed into elliptic plate particles.
摘要:
An ultrasonic-wave distance measuring apparatus of the separate transmission and reception type reflection system capable of making the measurable distance longer and improving the precision of the measuring, wherein a distance measurement calculation control circuit in an ultrasonic-wave transmitter starts counting a time simultaneously with the start of vibration of an ultrasonic-wave transmission sensor, the ultrasonic-wave emitted from the ultrasonic-wave transmission sensor is reflected at the object to be measured and detected by an ultrasonic-wave reception sensor, a distance measurement sensitivity correction circuit corrects the sensitivity of the signal from the ultrasonic-wave reception sensor based on sensitivity correction data predetermined in accordance with a type of object and a measurement distance, the signal after the sensitivity correction by the distance measurement sensitivity correction circuit is detected in a detection circuit, and the distance measurement calculation control circuit stops counting when the detection signal exceeds a predetermined level, measures the time from the start of vibration of the ultrasonic-wave transmission sensor to the reception by the ultrasonic-wave reception sensor, and calculates the distance between the object to be measured and the ultrasonic-wave transmission sensor based on the obtained time.
摘要:
A portable telephone having an antenna for transmitting and/or receiving a wireless signal, a microphone for generating a sound signal corresponding to an input sound, a transmitting and receiving circuit for generating a wireless signal corresponding to the sound signal generated by the microphone to transmit the wireless signal through the antenna and generating a sound signal corresponding to the wireless signal received by the antenna, a receiver for outputting sound corresponding to the sound signal generated by the transmitting and receiving circuit, a shield case for surrounding and housing all or part of the transmitting and receiving circuit and being conductive, an electric wave absorber with one face in contact with a predetermined area of the shield case for absorbing an electric wave, and a conductive layer formed on another face of the electric wave absorber and electrically connected to the shield case.
摘要:
A resin component for encapsulating a semiconductor includes magnetic powder and silica powder whose average particle diameter is smaller than the average particle diameter of the magnetic powder. Thus, the curing body of the resin component for encapsulating a semiconductor has an electromagnetic wave shielding function by the magnetic powder. Since the spaces of the magnetic powder are filled with the silica powder whose average particle diameter is small, the moldability of the curing body is improved and the insulating characteristics thereof are enhanced. Such a resin component for encapsulating a semiconductor is employed, there can be produced a preferably formed and encapsulated semiconductor device having the electromagnetic wave shielding function and having no malfunction generated due to leakage current from a semiconductor element.
摘要:
A complex material, which emits light with a light hand or finger touch of a person and only when subjected to a stress, comprises stress emission particles and an elastic material. The stress emission particles such as SrAl2O4:Eu particles emit light when subjected to a stress. The elastic material is a soft material having a Young's modulus smaller than 10 MPa, such as silicone rubber, synthetic rubber, natural rubber, or the like. Weight percent of the particles in the complex material is from equal to or more than 10% to less than 100%, ore preferably from equal to or less more than 10% to equal to or less than 90%. The particles are preferably surface-treated by a silane coupling agent. The complex material is used as an artificial light-emitting skin or an artificial light-emitting body.
摘要翻译:一种复合材料,其仅在受到应力的情况下用轻的手或手指触摸发光,包括应力发射颗粒和弹性材料。 当受到应力时,诸如SrAl 2 O 4:Eu颗粒的应力发射颗粒发光。 弹性材料是杨氏模量小于10MPa的软质材料,例如硅橡胶,合成橡胶,天然橡胶等。 复合材料中颗粒的重量百分比等于或大于10%至小于100%,矿石优选等于或小于10%至等于或小于90%。 颗粒优选通过硅烷偶联剂进行表面处理。 复合材料用作人造发光皮肤或人造发光体。
摘要:
The portable telephone capable of more effectively reducing the electromagnetic energy to be radiated therefrom and absorbed by the human body during its use is provided. The portable telephone is comprised of: an antenna; a microphone; a transmitting circuit for modulating a first audio signal to produce a first radio signal, and transmitting the same; a receiving circuit for demodulating a second radio signal received via the antenna, and reproducing a second audio signal; a receiver for outputting an audio sound corresponding to the second audio signal; a printed circuit board on which the receiving and the transmitting circuits are mounted; a shield case surrounding the printed circuit board so as to suppress the electromagnetic interference between the printed circuit board and the antenna; the housing for accommodating the shield case and so on; the electromagnetic wave absorption layer including a magnetic loss material, formed at least in a part between the shield case and the housing; and the electromagnetic wave reflection layer including a magnetic reflection material, formed between the housing and the electromagnetic wave absorption layer.