A powder-metallurgy produced high-speed steel article having a combination of high hardness and wear resistance, particularly at elevated temperature. This combination of properties is achieved by the combination of W, Mo, V and Co. The article is particularly suitable for use in the manufacture of gear cutting tools, such as hobs, and surface coating.

This invention relates to a method and apparatus for detecting islanding of parallel connection type solar power generation system, mainly to make the output current waveform of the solar energy power generation system to be a slightly asymmetrical signal which has unequal time interval for the upper and the lower cycle. This asymmetrical signal will not cause any influence on the frequency of pow...

In a personal transportation unit designed for paraplegics, this invention i s a three wheeled mountain bike for people who still retain upper body strength and dexterity and wish to have greater mobility and independence than conventional units (wheelchairs) allow. In this invention, power is derived by hand cranks that are secured to t he outside of crankshafts (left and right) and then connect...

Disclosed is a method for planarization-etching a semiconductor device for minimizing an occurrence frequency of micro-scratch. In the method of the present invention, the slurry aged for at least two hours is prepared for planarization-etching a layer formed on a semiconductor substrate. At this time, to age slurry means to age either the slurry source or the diluted slurry. Relatively heavy slur...

A communication network for low bandwidth, rapid two-way communication utilizing industry standard e-mail message format has remote wireless terminals (two-way pagers) 10, each separately addressed and capable of linking via wireless connection to a central processor 35 for two-way communication. Incoming requests are processed and results returned utilizing e-mail constructed reporting. The syste...

A method for manufacturing a thin film includes the steps of loading a substrate into a reaction chamber and terminating the surface of the substrate loaded into the reaction chamber by a specific atom. A first reactant is chemically adsorbed on the terminated substrate by injecting the first reactant into the reaction chamber including the terminated substrate. After removing the first reactant p...

On-screen-display graphics data is transmitted from a source device to a display device over an IEEE 1394-1995 serial bus network utilizing an isochronous data format. The on-screen-display graphics data is generated by the source device and transmitted to a display device, as a stream of isochronous data, separate from video data. Each packet of isochronous data within the stream of on-screen-dis...

A means of connecting a plurality of essentially identical active devices is presented for the purpose of multifunction and multiple function operation. These devices, mounted on a chip, are flip-mounted to a circuit motherboard having large passive elements. A push-pull amplifier is presented as an example in which the multiple function operation is the combining of amplifiers whose active devic...

The present invention is an Ethernet memory structure. It includes several multi-slot buckets, each corresponding to a hashing key of some bits in the medium access control (MAC) addresses. In each multi-slot bucket, a forwarding table storage position is used for storing several main contents of the forwarding table. For example: In a 4-slot bucket, if two main contents are stored in each forward...

A method for controlling a chemical reactor such as a gas-phase reactor using a non-linear predictive control includes steps for generating a plurality of signals representing a current state of the chemical reactor and reflecting a respective constituent of reactants in the chemical reactor, calculating a future state of the chemical reactor responsive to said plurality of signals and referenced ...

An information processing apparatus for executing a program, the apparatus including: a register set made up of a plurality of registers; a decoding unit for decoding machine language instructions in the program and extracting a selected instruction which indicates data transfer between a plurality of registers designated by a first operand, which is made up of a single field of at least one bit w...

A nested loop method for use in a memory test system to identify the width, depth, control line configuration, and part type of a synchronous memory, wherein bit patterns are retrieved from tables representative of a plurality of synchronous memories during execution of nested loops, from outer loop to inner loop, in the order of bank loop, RE loop, CE loop, CS loop, DQMB loop, and part type loop,...

The present invention relates to a storage device with random access memory (RAM) modules for personal computer (PC) system application. The storage device consists of at least a random access memory module, a memory accessing unit, a data accessing interface, a command translating unit, and a power unit. The memory accessing unit is connected with the RAM modules for accessing data stored in the ...

A BGA type semiconductor device package, include a semiconductor chip, a plurality of electrode pads formed on the semiconductor chip, a group of leads, connection wires and a resin mold. The group of leads includes a group of first leads and a group of second leads. Each of the first leads is electrically connected with at least one of the second leads at a lead connecting portion. The first lead...

Cyclic analogues of histatin H-5, having from about 7 - 20 amino acid units exhibiting substantial homology to histatin H-5, and having a cyclic portion of from 5 -16 of the amino acid units, have been found to exhibit enhanced bio- activity against a variety of different microorganisms. The cyclic structure is imparted by replacement of naturally occurring amino acids in histatin-5 sequences by, ...

A supported metallocene catalyst is provided wherein a reaction product of a metallocene compound and aluminoxane is supported on an inorganic fine particle support, characterized in that (a) the BET specific surface area is in the range of 85-98% of that of the inorganic fine particle support, (b) the average pore volume is in the range of 25-60% of that of the inorganic fine particle support and...

Disclosed is a rotary looper. The rotary looper comprises a base member; a fixed drum installed on the base member and having a plurality of spiral guide rollers; a pair of pinch rollers and a series of lead rollers sequentially disposed at an inputting side of the base member; a pair of measuring rollers disposed at a discharging side of the base member; a plurality of inside basket rollers circu...

A copyright protection system for protecting content wherein a receiver dependent ticket is calculated at a source device by combining a receiver dependent identifier with a ticket. The receiver dependent identifier is transmitted from the receiver to the source device prior to the source device transmitting watermarked content to the receiver. The receiver dependent identifier is also stored at t...

A fuel charging apparatus configured to charge fuel modules through an aperture formed in a vessel, the fuel charging apparatus comprising a lost motion fuel charging mechanism having a fuel module support and a fuel module support cleaner, the fuel module support being adapted to engage and move the fuel module, and a power mechanism coupled to the fuel module support and configured to move the f...

A method of improving in an oblong absorbent article that includes a liquid-impermeable bottom sheet, an upper liquid-permeable sheet and an absorbent body disposed between these sheets, and on each side of the longitudinal center line of the upper sheet at least one longitudinal elastic liquid barrier, the sealing effect afforded against the skin of the wearer by at least one liquid barrier on ea...