Abstract: A polishing tool holder (4) of a polishing device (1) has a shank (6), an attachment part (21) to which a polishing tool (3) is attached, a movement mechanism (22) including a motor (35) configured to move the attachment part (21) in an axial direction (X) of the shank (6), a load detector (23) configured to detect a load exerted on the polishing tool (3) attached to the attachment part (21), and a control unit (52) configured to control driving of the motor (35). The control unit (52) monitors an output from the load detector (23) and successively calculates the amount of change of the load, and performs a projection control operation of driving the motor (35) based on the load and the amount of change to advance or retract the polishing tool (3) attached to the attachment part (21).

Abstract: A memory sharing apparatus includes a server, a host and a client. The server includes a shared page which is an entity of a shared memory, a share setting page which is data in which an index value of each shared page is collected, and a grant table in which a page frame number of each share setting page and the index value are stored so as to correspond to each other. The host includes a database in which the index value in the grant table is managed. The client includes the shared page and a shared page area to which the shared page is mapped, and a share setting page area to which the share setting page is mapped.

Abstract: A reverse proxy server relays data between a client terminal connected to an external network and a host computer installed in an internal network segment using a session ID. A management server, in response to a connection request from the client terminal to the host computer via the reverse proxy server, decides whether a connection to the host computer is permitted based on host PC data having a host PC name of the host computer and a service name distributable by the host computer, and notifies the reverse proxy server and the host computer of the session ID to start connection when the connection is permitted. The host computer sends service data with the session ID after receiving the session ID. The reverse proxy server sends the service data from the host computer to the client terminal, and in response to data from the client terminal, sends the data with the session ID to the host computer.

Abstract: A reverse proxy server relays data between a client terminal connected to an external network and a host computer installed in an internal network segment using a session ID. A management server, in response to a connection request from the client terminal to the host computer via the reverse proxy server, decides whether a connection to the host computer is permitted based on host PC data having a host PC name of the host computer and a service name distributable by the host computer, and notifies the reverse proxy server and the host computer of the session ID to start connection when the connection is permitted. The host computer sends service data with the session ID after receiving the session ID. The reverse proxy server sends the service data from the host computer to the client terminal, and in response to data from the client terminal, sends the data with the session ID to the host computer.

Abstract: The present invention relates to a liquid-circulating type redox flow battery which comprises(a) said battery being defined by a ratio (H/L) where (H) is the average height of each of said porous electrodes in a flow direction of each of said electrolytic solutions, and (L) is the length of each of said porous electrodes in a direction perpendicular to the flow direction of each of said electrolytic solutions, the ratio (H/L) being in the range of 0.18 to 1.95; and(b) said battery being defined by ratios (.SIGMA.s.sub.ai /S.sub.a) and (.SIGMA.s.sub.ci /S.sub.c) where (.SIGMA.s.sub.ai) is the sum of the cross-sectional area of an inlet for introducing said positive electrolytic solution into said positive cell, (.SIGMA.s.sub.ci) is the sum of the cross-sectional area of an inlet for introducing said negative electrolytic solution into said negative cell, (S.sub.

Abstract: The present invention provides a redox battery using two layer, liquid permeable, porous electrodes, each having a porous electrode layer having high surface area comprising carbon fiber at the septum side and a porous electrode layer having low surface area comprising carbon fiber at the bipolar plate side. The battery has excellent properties such as high current density, low pump pressure loss, and high output.

Abstract: An electrode for a coulometric type of electrochemical detector, comprising a porous carbon product having the following physical properties (1) to (3):(1) an average pore size in the range of 5 to 70 .mu.m,(2) a specific surface area in the range of 0.1 to 3 m.sup.2 /g, as determined by the BET method, and(3) a stack thickness of crystallite (Lc(002)) of 40 .ANG. or less, as determined by X-ray diffractometry.

Abstract: An electrode for a coulometric type of electrochemical detector, comprising a formed product of a porous, graphitic carbon having the following physical properties (1), (2) and (3):(1) an average pore diameter of 0.1 to 50 .mu.m,(2) a specific surface area of 10 m.sup.2 /g or more, and(3) an average interlaminar spacing (d.sub.002) of carbon of 3.35 to 3.42 .ANG., as determined by X-ray diffraction analysis.

Abstract: A novel process for production of polyethylene comprises polymerizing ethylene or a mixture of ethylene and a copolymerizable comonomer in the presence of a Ziegler-type catalyst at a pressure of 200 atm or more and at a temperature of 125.degree. C. or more, wherein an organic peroxide is added to the resulting polymerization product taken out of a reaction zone to deactivate the remaining catalyst. Formation of undesired oligomers or low-molecular polymers is prevented because the reaction does not proceed in the polymerization product taken out of the reaction zone. There is almost no retardation of the polymerization reaction even by the recycled use of the monomer separated and collected from the polymerization product.

Abstract: The present invention provides a process for producing ultrafine metal particles by gas-phase pyrolysis of 0.1 to 30% by volume transition metal carbonyl compound diluted with a diluent gas to form a mixed gas, which comprises supplying 1 to 30% by volume of the mixed gas of up to 200.degree. C. and 99 to 70 % by volume of a second diluent gas. The second gas heated to at least 400.degree. C., serves as a heat feed source for gas-phase pyrolysis to a reaction zone. The gases are mixed together there to carry out gas-phase pyrolysis in the presence of a magnetic field of at least 100 gauss.

Abstract: There is provided a process for producing graphite whiskers by supplying a carbon source compound with a carrier gas into a heating zone in a reactor and decomposing the carbon source compound in a gas phase in the presence of a catalyst, characterized in that the catalyst comprises ultrafine particles of a transition metal which have been obtained by the gas-phase thermal decomposition of a carbonyl compound of a transition metal in the presence of at least one organic compound containing oxygen and/or sulfur.

Abstract: A magnetic metal powder comprising fine particles of a transition metal which contain 0.2 to 2.5% by weight of carbon substantially in the form of metal carbide and which are of such a geometry as a minor axis length of 100 to 300 .ANG. and a (major to minor) axial ratio of 1 to 50.

Abstract: In a process for producing an ultrafine powder of a metal by subjecting a transition metal carbonyl compound to gas phase pyrolysis reaction, the improvement which comprises diluting said carbonyl compound with an inert gas or hydrogen to a concentration of 3 vol. % or less with optional addition of an oxygen-containing organic compound and/or a sulfur-containing organic compound in an amount of 0.0001 to 0.1 mol per mol of said carbonyl compound to prepare a gas mixture, and then carrying out gas phase pyrolysis reaction at 300.degree. C. or higher by allowing said gas mixture to reside for 5 seconds or less in a reaction system to which a magnetic field of 100 gauss or higher is being applied, thereby obtaining the ultrafine powder of said metal having a length of 1 micron or less, a coercive force of 800 oersted or higher and a saturation magnetization of 120 emu/g or higher.

Abstract: A metal powder-containing polymer composition selected from the group consisting of[A] polymer compositions each containing a metal powder having an amino compound and a silane coupling agent compound deposited thereon; and[B] compositions each consisting essentially of:(a) powder of a metal having an amino compound or a mixture of an amino compound and a silane coupling agent compound deposited thereon and(b) a thermoplastic resin comprising a carboxyl group-containing thermoplastic resin.The amine compound is exemplified by diamine compounds; the silane coupling agent by aminosilane compounds and vinyl silane compounds; and the polymer by a blend of a maleic anhydride-graftpolymerized polypropylene and polyester, polyamide or polypropylene.

Abstract: A catalyst and a process for copolymerizing ethylene with an .alpha.-olefin at a high temperature and pressure of not less than 200 kg/cm.sup.2 and 125.degree. C. by the use of the catalyst, which catalyst consists essentially of:component A obtained by mixing and pulverizing(1) a halocompound of magnesium,(2) TiCl.sub.3(3) a halide of a IVa-group element, and(4) an electron donor,component B which is a halogen-containing organoaluminum, andcomponent C which is a compound represented by R.sub.4-n.sup.4 Si(OR.sup.5).sub.n wherein 0<n.ltoreq.4.The resulting copolymer has a low content of double bonds and also has a decreased content of a low-crystalline copolymer.

Abstract: A novel process for production of polyethylene comprises polymerizing ethylene or a mixture of ethylene and a copolymerizable comonomer in the presence of a Ziegler-type catalyst at a pressure of 200 atm or more and at a temperature of 125.degree. C. or more, wherein an organic peroxide is added to the resulting polymerization product taken out of a reaction zone to deactivate the remaining catalyst. Formation of undesired oligomers or low-molecular polymers is prevented because the reaction does not proceed in the polymerization product taken out of the reaction zone. There is almost no retardation of the polymerization reaction even by the recycled use of the monomer separated and collected from the polymerization product.

Abstract: An electromagnetic shielding material comprising a composition consisting of Mn-Zn ferrite powders, conductive carbon powders and organic high molecular weight compounds. The Mn-Zn ferrite powders may be contained in the range between 30 and 70 vol %. The composition has 10.sup.2 to 10.sup.-1 ohm.cm of volume resistivity and exhibits excellent electromagnetic absorbing property. The electromagnetic shielding material can prevent transmission of electromagnetic waves and attenuate refleted waves by absorbing the waves.

Abstract: A metal powder-containing polymer composition selected from the group consisting of[A] polymer compositions each containing a metal powder having an amino compound and a silane coupling agent compound deposited thereon; and[B] compositions each consisting essentially of:(a) powder of a metal having an amino compound or a mixture of an amino compound and a silane coupling agent compound deposited thereon and(b) a thermoplastic resin comprising a carboxyl group-containing thermoplastic resin.The amine compound is exemplified by diamine compounds; the silane coupling agent by aminosilane compounds and vinyl silane compounds; and the polymer by a blend of a maleic anhydride-graftpolymerized polypropylene and polyester, polyamide or polypropylene.

Abstract: A process for catalytic homo- or co-polymerization of ethylene under the conditions of a pressure of at least 300 kg/cm.sup.2, a temperature of at least 180.degree. C., a contact time with a catalyst of 10 to 150 seconds and substantial absence of a solvent is disclosed. The catalyst used comprises Components A and B where Component A is a solid composition prepared by mixing and pulverizing (1) a magnesium halide, (2) titanium trichloride, and (3) an electron donor and Component B is an organoaluminum compound containing a halogen.