摘要:
A resin-made cushioning element 1 which is of one-piece construction includes upstanding and downstanding portions 2a and 2b alternately arranged in regular manner to form a matrix having four peripheries.
摘要:
The present invention provides a process for the production of glyoxals which comprises effecting the oxidative dehydrogenation of a glycol at a temperature of 400.degree. to 700.degree. C. in the presence of a silver-based catalyst composed of silver and at least one element selected from the group consisting of gold, platinum, rhodium and palladium, and phosphorus or a phosphorus compound, as well as such catalysts. These process and catalysts make it possible to produce high-quality glyoxals in high yield and with industrial advantages while minimizing the contents of unreacted raw material and reaction intermediates such as glycolaldehyde and acetol.
摘要:
The invented auto-ranging device has a signal measuring A/D converter, a range-switching A/D converter of a faster processing speed, a range-switching amplifier with variable amplification capabilities, and a processing controller which utilizes the variable amplification factors to alter the output signals from the switching A/D converter to generate signals appropriate for a scale range of a multi-range measuring A/D converter.
摘要:
An LED stabilizing light source device comprises an LED, a drive circuit for driving the LED, a wavelength filter for filtering the light emitted from the LED, a light splitter for splitting the light passing through the filter, a photodiode for receiving the split light. The device further comprises a feedback loop for feeding an output of the photodiode to the drive circuit.
摘要:
A sheltering apparatus for use in the long wall face of mine wherein a plurality of plates are arranged in overlapping manner between a self-advancing support and an adjacent plate, and hung from wires whose ends are fixed to the supports through springs, and an air curtain is fixed at the front open portion of the support, whereby floating dust and falling dusty materials can be repelled from entering the inner space of the supports.
摘要:
A catalyst for reforming hydrocarbon fuels into a hydrogen-rich reformed gas comprising an active carrier consisting of magnesium aluminate of spinel structure as represented by the formulaMgAl.sub.2 O.sub.4and at least one catalyst metal selected from the group consisting of platinum, rhodium and a mixture thereof supported by said carrier.
摘要翻译:一种用于将碳氢化合物燃料重整成富氢重整气体的催化剂,包括由式MgAl 2 O 4表示的由尖晶石结构的铝酸镁组成的活性载体和选自铂,铑及其混合物中的至少一种催化剂金属的载体 由承运人
摘要:
This invention relates to an apparatus for tensioning reinforcements in the process of manufacturing concrete poles and the like having the structure in which a tension plate of a circular ring shape is fixed to an end plate for setting reinforcements placed inside a mold in a freely slidable manner, the inner surface of the tension plate is engaged with a jack rod, the outer periphery of the tension plate is provided with a plurality of protuberances whose thickness is less than that of the tension plate and which are spaced at equal intervals thereabout, a set ring of a circular ring shape is provided for contacting a flange part at the end of the mold, and the inner surface of the set ring is contacted with the outer periphery of the tension plate and has a plurality of concave parts into which the said protuberances can be disposed; and additional structure by which methods of engaging the tension plate with the jack rod and disengaging the plate from the rod are able to be accomplished in different ways.
摘要:
A concentrating solar power generation unit (10) comprises a solar cell element (1), a mounting plate (3) on which is mounted the solar cell element (1), which is bonded to a receiver (2), a light shield (4) that covers the mounting plate (3), a frame (5) disposed perpendicularly from the ends on two facing sides of a light shield (4), a concentrating lens (7) that is disposed corresponding to the upper end of the frame (5) across from the light shield (4) and that concentrates sunlight (Ls) on a light receiving region of the solar cell element (1), and a translucent substrate (6) that fixes (fastens) the concentrating lens (7) and is mounted to the upper end of the frame (5).