摘要:
A charged particle accelerator capable of accelerating arbitrarily charged particles to an arbitrary energy level and resonating at a low frequency suitable for accelerating heavy ions, including quadruple electrodes which are supplied with high frequency power and disposed in the direction of the center axis of a cylinder-shaped container and a resonant circuit having a capacitor and an inductor for supplying a voltage to the quadruple electrodes. The capacitor is composed of a plurality of metallic plates provided along the center axis at specified intervals in the vicinity of the quadruple electrodes, and a plurality of conductive supports supporting the metallic plates which are directly connected to the container together with the supports and the container form the inductor. Since the metallic plates and the quadruple electrodes are electrically directly connected to each other, an arbitrary resonant frequency can be obtained by adjusting the intervals between the plurality of metallic plates with a position adjusting mechanism. In one embodiment, flat electrodes are protruded from opposite sides of the inner wall of the container and are disposed in parallel to the center axis and close to each other to constitute a capacitor, which makes it possible to have a resonant frequency in a low frequency range. To obtain a large Q value, the surface current resistance is lowered by covering the inner wall of the container and the surfaces of the flat plate electrodes with a superconductive material.
摘要:
An oiliness agent comprising a carboxylate of a composite metal hydroxide having a chemical composition represented by the following general formula (1), M2aM3x(OH)y(A)z.nH2O (1) wherein, M2 indicates a divalent metal, M3 indicates a trivalent metal, A indicates an anion of an aliphatic carboxylic acid, a, x, y, and z are numbers satisfying the following formulas: a>0, 3x+2a−y−mz=0 (wherein m is a valency of anion A), 0.3≦a/x≦2.5 1.5≦y/(a+x)≦3.0 1.0≦(a+x)/z≦20.0, and n is a number not larger than 7. The oiliness agent exhibits excellent emulsifying properties such as dispersion stability and moisture retaining property without emitting odor and without a tendency of being colored, and is very useful for forming a water-in-oil emulsion which can be effectively used as a base material for cosmetics.
摘要:
A processing method of liquid includes: decomposing a resin in liquid by allowing ozone gas to contact the liquid containing a water-soluble carbonyl compound and the resin; and removing organic acid generated by decomposing the resin in the decomposing step from the liquid by performing on the liquid after being subjected to the decomposing step an ion exchange process using an ion exchange resin. The liquid to be subjected to the ion exchange process contains water.
摘要:
In a synchronous semiconductor storage device, upon latching potentials of a bit line by a sense amplifier in a read operation, a bit line disconnecting circuit disconnects the bit line and an associated reference line from the sense amplifier until a next read operation. At the same time, a virtual GND line disconnecting circuit disconnects a corresponding virtual GND line from the ground potential until the next read operation. After the disconnection of the bit line, the reference line, and the virtual line, the precharge operation of the bit line and virtual line by the VREF level supply circuits is performed in parallel with the amplifying operation by the sense amplifier. This allows an access with a CAS latency of 3.
摘要:
A process for producing a powdery ammonium polyphosphate which is uniformly coated with melamine is provided wherein melamine is sublimated and added and/or adhered onto the particle surface of a powdery ammonium polyphosphate.
摘要:
Finely divided particles of II type ammonium polyphosphate (APP) which, when added to polyolefin resins, etc., afford products having a small reduction in the mechanical characteristics, a reduced particle diameter and an increased specific surface area and nevertheless, having bleed resistance and flame retardancy similar to those of conventional products, and a process for producing the particles are provided,the particles being characterized in that 80% by weight or more thereof have a particle diameter of 10 .mu.m or less and 5% aqueous solution thereof dissolved in 80.degree. C. water has 500 cps or more, and the process being a process for producing the particles by reacting ammonium phosphate with P.sub.2 O.sub.5, each in a nearly equimolar quantity, in a NH.sub.3 gas atmosphere and at an elevated temperature, comprisinga first reaction step carried out in N.sub.2 gas atmosphere without feeding NH.sub.3 gas, a second reaction step of instantaneously feeding NH.sub.3 gas or a NH.sub.3 -generating substance when hot, in 3 to 90% of the stoichiometrical quantity, and a third reaction step of slowly adding NH.sub.3 gas in a quantity or more of the remainder of the stoichiometric quantity and aging therewith, to crystallize the resulting II type APP.
摘要:
The objective of the present invention is to provide an inkjet printing apparatus that can reduce the scattering or floating, through the main body of the printing apparatus, of ink mist generated during pre-ejection. To achieve this objective, according to this invention, after a printing unit has completed ink ejection relative to an ink receiving member, and before the printing unit is moved from the position opposite the ink receiving member, an ink mist suction operation is started.
摘要:
A cold cathode field emission device comprising a cathode electrode 11 formed on a supporting member 10, a gate electrode 13 which is formed above the cathode electrode 11 and has an opening portion 14, and an electron emitting portion 15 formed on a surface of a portion of the cathode electrode 11 which portion is positioned in a bottom portion of the opening portion 14, said electron emitting portion 15 comprising a carbon-group-material layer 23, and said carbon-group-material layer 23 being a layer formed from a hydrocarbon gas and a fluorine-containing hydrocarbon gas.
摘要:
To manufacture a field-emitting type cathode of a planar display device at a high accuracy, the following steps are included: the step of forming a first electrode (11) on a substrate (1) and a an electron emitting portion (9) on the electrode (11), forming an insulating layer (7) on an area including the first electrode (11) and electron emitting portion (9), and forming an electrode layer (121) serving as a second electrode on the insulating layer (7); the step of forming a negative type photoresist layer (30) on the entire surface including the electrode layer (121), exposing the photoresist layer (30) by using the electron emitting portion (9) as a mask and thereby applying ultraviolet radiation (31) from the back of the substrate (1), and selectively removing a photoresist layer (301) at a portion corresponding to the electron emitting portion (9) by developing the layer (30); and the step of forming an opening from which the electron emitting portion (9) is exposed by using the remaining photoresist layer (301) as a mask and thereby selectively etching the electrode layer (121) and insulating layer (7).
摘要:
Water-insoluble ammonium polyphosphate particles are provided which include melamine-coated ammonium polyphosphate particles with the surface thereof being crosslinked by a reaction between the melamine of the melamine-coated ammonium polyphosphate particles and a crosslinking agent having a functional group capable of reacting with the active hydrogen atoms belonging to the amino group in the melamine molecule.