摘要:
The object of this invention is to provide an electrical deionization apparatus with which various feed water types ranging from water of high ion concentration to water of low ion concentration can be consistently deionized with high efficiency. At least part of cation-exchange membranes and anion-exchange membranes alternate between electrodes to form an alternating array of deionization and concentration compartments and the deionization compartment contains a woven or non-woven fabric made of cation-exchange fiber that is placed on the cation-exchange membrane side in a face-to-face relationship with a woven or non-woven fabric made of anion-exchange fiber that is placed on the anion-exchange membrane side, with the passageway of feed water between the two woven or non-woven fabrics containing an ion-conducting spacer provided with an ion-exchanging capability.
摘要:
A process for producing hollow particles of crosslinked melamine resin having a uniform particles diameter, said process comprising subjecting a water-soluble methyl-etherified-melamine resin precondensate to condensation reaction in the presence of a curing catalyst in an aqueous solution containing a water-soluble polymer with carboxyl groups or water-soluble copolymer of ethylenically unsaturated carboxylic acid monomer, when the reaction liquid becomes turbid, adding to the reaction mixture a substance which dissolves or swells the melamine resin, and continuing the condensation reaction, if necessary.
摘要:
A weight sensing apparatus has a weight sensor provided with a load cell for producing an output signal indicative of the weight of an article, and a support for supporting the weight sensor. The apparatus includes oscillation sensing means provided in the vicinity of the load cell for producing an output signal indicative of an oscillation component caused by floor oscillation, a summing amplifier for adding the output signal from the load cell and a signal which is the inverse of the output signal from the oscillation sensing means, and signal processing means for processing the output of the summing amplifier to remove an oscillation component contained in the output signal from the load cell. The oscillation component is caused by oscillation received by the weight sensor from its surroundings.
摘要:
A semiconductor device comprising a first conductor having first and second portions which are electrically disconnected from each other, and a second conductor, formed on an insulating film separating it from the first conductor, which is electrically conductive. A radiated energy beam renders the second conductor non-conductive, while simultaneously electrically connecting the first and second portions, rendering the first conductor conductive, as needed.
摘要:
The invention provides a semiconductor device having a semiconductor substrate with an active region including a buried contact and a field region including a field insulation layer. The device also includes a first polysilicon layer formed in the active region and on the field insulation layer, and a second polysilicon layer a portion of which is formed on said first polysilicon layer and another portion of which is formed on an isolation film covering a portion of the first polysilicon layer. The portion of the second polysilicon layer which is located above the field insulation layer is doped with metal or has a surface covered with a metal film. The semiconductor devices of the present invention operate at a high speed and are made small due to the use of multi-layer wiring.
摘要:
The invention of this application relates to a weighing machine in which a weighing member such as a weighing saucer or hopper holding or accommodating the materials to be weighed is provided on one side of a load cell through a support, and the load cell is supported on the other side thereof on a frame directly or indirectly through an elastic body for absorbing vibrations. The weighing machine is basically constructed so that the load cell is supported on the other side thereof on the frame through a strain generator for allowing damping in the fixed direction and, at the same time, through an anti-vibration damper for improving a damping characteristic, whereby vibrations of the load cell is damped promptly. Further, a dummy cell having the same natural frequency as the load cell is associated with the load cell and then supported on the frame in a similar manner, to remove a vibration signal from the base out of a detection signal from the load cell, thereby making it possible to carry out detection of weight accurately.
摘要:
In a semiconductor memory cell of the type in which memory cells are arranged in a matrix, the present invention discloses a novel construction of a word line which interconnects a plurality of memory cell in one row. Each word line is divided at least at one point into a first word line and a second word line which are electrically isolated from each other and a first switching circuit is interconnected between the first and second word lines. When each word line is selected, the first switching circuit is responsive to a select signal propagated from the first word line so as to increase the potential of the second word line to a predetermined select level and when each word line is deselected, the first switching circuit causes the potential of the second word line to a deselect level in synchronism with a deselect signal. A second switching circuit is connected to the input end or the terminal end of the second word line so as to cause the potential of the second word line to a deselect level in synchronism with a deselect signal which is different from said first mentioned select signal.
摘要:
A first wiring to be connected as needed and second wirings to be disconnected as needed are formed three-dimensionally with an insulation film interposed therebetween. The first wiring comprises at least three first semiconductor regions of a second conductivity type formed at predetermined intervals in the surface of a semiconductor substrate of a first conductivity type, and second semiconductor regions of the first conductivity type formed between each pair of adjacent first semiconductor regions. The second wirings are formed on the first wiring through the insulation film and in a number equal to that of the second semiconductor regions. Each second wiring and the corresponding second semiconductor region are located within a spot of a radiating means radiated vertically onto the semiconductor substrate for switching the wirings.
摘要:
A MOS type semiconductor integrated circuit comprising a C-MOS inverter including P- and N-channel MOS transistors connected in series between V.sub.DD and V.sub.SS power supply terminals, the gates of the MOS transistors being supplied with an input signal; a variable capacitor connected between a node at which the transistors are interconnected and a reference voltage; and a voltage generator for producing an output voltage to the variable capacitor, the voltage generator being capable of irreversibly changing the level of the output voltage, thereby changing a capacitance of the variable capacitor.
摘要:
A sense amplifier wherein each of a first through a fourth inverter comprises a driving transistor and a load transistor; the first, second, third and fourth inverters are interconnected in such a way that the outputs of the first and second inverters are applied to the third and fourth inverters, respectively; the first and second inverters have input terminals while the third and fourth inverters have output terminals; one terminal of each of the first through fourth inverters is connected to first power supply while the other terminals of the first and second inverters are connected directly or through a control transistor to second power supply; and the outputs from the first and second inverters are applied to the other terminals of third and fourth inverter, respectively.