Abstract: A modified process for synthesizing diamond having developed by further improving a process of diamond synthesis based on combustion method, which provides diamond grains 1.5 mm or larger in crystal diameter at good economy. The process comprises burying one or two or more seed crystal diamond grain(s) 2 into the surface of a substrate 1, and striking a combustion flame on said seed crystal diamond grain(s) 2 while cooling the substrate 1 to thereby allow diamond to grow on the seed crystal diamond 2 into a larger diamond grain.

Abstract: A semiconductor memory device is provided which can apply a voltage stress to every adjacent bit lines even when data is written using a data bit compression function in a burn-in test mode. More specifically, when data is written using the data bit compression function in the test mode, an input buffer circuit is brought to a state in which it receives a signal corresponding to a signal dq0 applied to a specific input/output terminal by a switch circuit controlled by a test mode specify signal TE in common. When an inversion designate signal INV is in an active state, a complementary signal corresponding to a signal obtained by inversion of signal dq0 by an inverting circuit is output to internal data buses IO0, ZIO0, and IO2, ZIO2. On the other hand, a complementary signal corresponding to signal dq0 is output to internal data buses IO1, ZIO1, and IO3, ZIO3.

Abstract: A DRAM includes an output terminal, a memory cell array having a plurality of memory cells, a row decoder, a column decoder, an input/output circuit, a data extending circuit, an output buffer circuit, and a control circuit. The data extending circuit extends each data read out from the input/output circuit until a subsequent data is read out. The output buffer circuit responds to the extended data from the data extending circuit for providing output data sequentially to the output terminal. In response to an output control signal provided from the control circuit, the output terminal is set to a high impedance state before each output data is provided from the output buffer circuit.

Abstract: A benzenesulfonamide derivative represented by the following general formula: ##STR1## wherein R.sup.1 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group or a halogen atom; R.sup.2 represents a C.sub.1 -C.sub.10 straight- or branched-chain alkyl group, a C.sub.3 -C.sub.8 cycloalkyl group which may be substituted with one or more C.sub.1 -C.sub.6 alkyl groups on its ring, a C.sub.1 -C.sub.6 alkyl group substituted with one or more C.sub.3 -C.sub.8 cycloalkyl groups, 1-adamantylmethyl group, 2-norbornylmethyl group, or a C.sub.1 -C.sub.6 alkyl group substituted with one or more phenyl groups whose benzene ring may have one or more substituents; R.sup.3 represents a hydrogen atom or a lower alkyl group; and n is an integer of from 2 to 4, and a pharmacologically acceptable salt thereof. The present compounds have thromboxane A.sub.

Abstract: An image data processing apparatus such as an image synthesizing apparatus that synthesizes an image produced by a computer in accordance with tables stored in pages. A picture data conversion circuit converts picture data of red, blue and green color signals or picture data of luminance and color difference signals to predetermined converted picture data. A page change circuit switches the page of the picture data conversion circuit on the basis of alpha data representing transparency of the color picture data. An image data processing apparatus generates virtual addresses based on predetermined reference addresses in an address space larger than the frame memory addresses for accessing a plurality of frame memories at a low-order bit of the virtual address by selecting and outputting the image data outputted from the plurality of frame memories on the basis of a high-order bit of the virtual address.

Abstract: The flow of waste gas is directed downwardly by means of a refractory guide chute so as to follow the down flow of molten slag at the downstream end of a slag outlet. Thus the sensible heat of the high-temperature waste gas forcedly heats the molten slag and the downstream end portion of the slag outlet. Consequently, it becomes less possible for the slag outlet to be choked up. When there are signs that the slag outlet is being choked up, the plasma torch is slightly tilted to the upstream end of the slag outlet so as to stabilize the discharge of the molten slag. A housing or jacket is disposed circumferentially around an incineration residue feed pipe, inserted through the incineration residue inlet, and adapted to allow an annular gas curtain to issue therefrom. Fuel injection against the waste gas in the furnace body is particularly suitable for decreasing the amount of NOx.

Abstract: When a disturb refresh mode is detected by a mode detecting circuit, a row decoder control circuit simultaneously activates every several word lines of a memory cell array of a block selected by an operation block selecting circuit through a row decoder and a driving circuit, reads out data written in a normal mode, and determines a memory cell having a threshold value lower than that of a design value upon determination of match of read data and written data.

Abstract: A DRAM includes an output terminal, a memory cell array having a plurality of memory cells, a row decoder, a column decoder, an input/output circuit, a data extending circuit, an output buffer circuit, and a control circuit. The data extending circuit extends each data read out from the input/output circuit until a subsequent data is read out. The output buffer circuit responds to the extended data from the data extending circuit for providing output data sequentially to the output terminal. In response to an output control signal provided from the control circuit, the output terminal is set to a high impedance state before each output data is provided from the output buffer circuit.

Abstract: When a disturb refresh mode is detected by a mode detecting circuit, a row decoder control circuit simultaneously activates every several word lines of a memory cell array of a block selected by an operation block selecting circuit through a row decoder and a driving circuit, reads out data written in a normal mode, and determines a memory cell having a threshold value lower than that of a design value upon determination of match of read data and written data.

Abstract: A magnetic disk apparatus has a rail support which supports guide rails for guiding a carriage on which heads are mounted. The rail support is positioned outside a magnet of a voice coil motor and mounted on a frame. The guide rails are disposed so as to extend across a cavity in the rail support and have their opposite end portions attached to the rail support. The guide rails do not vibrate even if the voice coil motor receives a reaction during head seeking, whereby the head positioning accuracy can be improved and the storage capacity can be increased. The rigidity of the guide rails is increased by supporting the opposite ends of the guide rails. This structure and a coaxial arrangement of a motor coil allow the overall length of the carriage and, hence, the overall size of the apparatus to be reduced.

Abstract: A magnetic head core for a magnetic head including a first and a second ferrite member butted and bonded together to form an annular, closed magnetic path around a coil-winding groove, and a coil attached to a coil-winding portion of the first ferrite member. The first and second ferrite members provide a sliding surface to which a magnetic recording medium is opposed, and which extends across the first and second ferrite members. A non-magnetic material is secured to at least one of an inner surface and an outer surface of the coil-winding portion. The non-magnetic material is located below the sliding surface, and is spaced apart from the magnetic recording medium with the sliding surface disposed between the non-magnetic material and the magnetic recording medium.

Abstract: A low calorific gas is burned without the need of mixing or burning it with a high calorific gas. The method includes introducing either combustion air or low calorific gas into the mixing chamber, introducing the remainder into the mixing chamber through the perforated nozzles such that it is injected in the radial direction at a high speed from the holes to effect the mixing of the two in the mixing chamber, and injecting the mixed gas into the combustion chamber through the nozzles of the refractory baffle. The stable combustion of a low calorific gas alone by the aid of combustion air without the need of diffusing it into the atmosphere or burning it together with an expensive high calorific gas or oxygen-enriched combustion air is thereby effected, which greatly contributes to energy saving and environmental protection.

Abstract: A magnetic disk storage system in which magnetic disk drives can be cooled effectively, and even if a blast device for one of he magnetic disk drives fall into trouble or cease operation, a temperature rise of this magnetic disk drive can be suppressed to the minimum. For this purpose, in the magnetic disk storage system containing a plurality of magnetic disk drives, blase devices ae provided for each of the disk drives, and the disk drives are separated by partitions in which openings are formed so that the cooling air can be passed between adjacent magnetic disk drives.

Abstract: A solvent-free, cold-setting ternary organosiloxane composition is disclosed, which contains (A) liquid organopolysiloxane, (B) a cross-linking agent, and (C) a curing catalyst, said organopolysiloxane (A) being constituted by organosilicon group of X--Si (wherein X represents a hydrogen atom or a monovalent hydrocarbyl group) and functional side chain of OR (wherein R represents a hydrogen atom, a C.sub.1 -C.sub.5 alkyl group or an acyl group), said cross-linking agent (B) being one or more organometallic compounds selected from the group consisting of an organoaluminum compound, an organoboron compound, an organosilicon compound, an organotitanium compound and an organozirconium compound having at least one functional group selected from among an alkoxy group, an acyloxy group and an oxime group, and said curing catalyst (C) being a metal-containing organic compound, with the total contents of the metal elements of the ternary composition being 40% by weight or more in terms of MO.sub.

Abstract: In a voice coil motor having a voice coil, and a magnetic circuit which generates a magnetic flux traversing the voice coil; the magnetic circuit includes a yoke which is divided so as to form a plurality of magnetic paths traversing the voice coil and which is provided with hollows, and adjustment members which are inserted into the hollows so as to adjust the magnetic fluxes of the magnetic paths independently of one another.

Abstract: The semiconductor memory device according to the present invention includes a plurality of memory cells each for holding information charge arranged in a matrix of rows and columns, a plurality of bit line pairs, a plurality of word lines, a plurality of sense amplifiers grounded corresponding to the bit line pairs for amplifying a potential difference appearing between the bit lines of each bit line pair when information charge of each memory cell is read by a reading circuit, a plurality of holding circuits each provided corresponding to each of the bit line pairs and connected to the corresponding bit lines for holding the amplified potential difference of each bit line pair, a plurality of transistors for disconnecting the holding circuits from the bit line pairs with each holding circuit holding the potential difference of each corresponding bit line pair, a refresh device for refreshing a memory cell with a transistor being turned off, and an output device for outputting the potential difference held by

Abstract: A ceramic-metal friction welded member includes a ceramic member formed with an annular notch in an outer circumference of its surface and a metal member joined onto the annular notch of the ceramic member by friction welding. A ceramic cast-in bonded piston includes a crown made of a ceramic material having an annular notch formed in an outer circumference of its surface, a metal annular member joined onto the annular notch of the crown by friction welding, and a piston main body made of an aluminum alloy surrounding the crown by cast-in bonding. A ceramic cast-in bonded piston includes a crown made of a ceramic material, a piston main body made of an aluminum alloy surrounding the crown by cast-in bonding, and an annular member made of a metal different from aluminum and joined by friction welding to an outer circumference of a surface of the crown in contact with the piston main body.

Abstract: A process for synthesizing diamond by combustion includes the steps of mixing a hydrocarbon fuel gas and oxygen, burning the mixed gas with a burner, contacting the resulting flame with a surface of a substrate provided in face-to-face relation with the burner, and cooling the substrate to synthesize the diamond. The diamond synthesizing conditions on the surface of the substrate are controlled so as to lower the growth rate.

Abstract: A thiazetoquinoline-3-carboxylic acid derivative represented by the general formula (I) ##STR1## wherein R.sub.1 is a hydrogen atom or a lower alkyl group; R.sub.2 is a fluorine atom or a chlorine atom; R.sub.3 is a hydrogen atom, a lower alkyl group, a lower alkanoyl group, a halogenated lower alkanoyl, or alkoxycarbonyl group; and R.sub.4 is a hydrogen atom or a lower alkyl group, and a pharmacologically acceptable salt thereof, a process for preparation thereof, a pharmaceutical composition comprising the same, and a method for the treatment of an infectious disease by administering the same, are disclosed.

Abstract: A melting tank for melting a gelled substance charged therein. The walls of the tank are heating. A first agitating blade agitates the bulk of the gelled substance to promote heat exchange with the walls. A second agitating blade is located closely adjacent a screen separating the gelled substance from a port at the bottom of the tank that is left open during agitation. Thereby, the melt flows down the walls of the tank and flows through the screen to the port.