The present invention is directed to a metal fluoride particle having a poly siloxane coating on its surface, and a dental composition comprising said metal fluor ide particle.; The present invention is directed to a metal fluoride particle having a polysiloxane coating on its surface, and a dental composition comprising said metal fluoride particle.

An extracorporeal blood circulator introducing blood collected from a body using a blood pump, subjecting a harmful substance contained in the collected blood to a predetermined treatment, and returning the thus treated blood to the body, wherein electrodes of a conductivity meter used for monitoring the treatment are arranged on an outer surface of the extracorporeal blood circulator so as to be ...

A novel, inexpensive sensor and method for detecting volatile compounds in the gas phase at concentrations of less than about 500 ppm in ambient air are provided. The sensor comprises (a) a dielectric substrate having a major surface; (b) a pair of electrically conductive electrodes disposed on the major surface of the substrate; and (c) a conductive polymer covering the pair of electrically condu...

The active brazing solder for brazing ceramic parts of alumina, particularly of high-purity alumina, contains a maximum of 12 wt.% Ti, a maximum of 8 wt.% Be, and less than 16.5 wt.% Fe, the remainder being Zr and any impurities that may be present. The active brazing solder has the following behaviour/features: Brazing temperature: lower than 1,000 .degree.C; the brazed joint is high-vacuum-tight...

This is a medical device. In particular, it is a surgical device usuall y delivered through an intravascular catheter. It may be used in several ways. It may, for instance, be used to open a clear passageway adjacent thrombus to allow both blood and medication to bypass the clot. It may be used to pierce and t o remove thrombus. These thrombus are often found in tortuous vasculature. The device i...

A method for preparing a cDNA from a mRNA using a reverse transcriptase wherein reverse transcription is performed at a temperature at which the mRNA does not take a secondary structure, for example, at a temperature of 45.degree.C or more. The method is performed, for example, using a heat-labile reverse transcriptase in the presence of a substance exhibiting chaperone function having chaperone f...

A photodynamic therapy balloon catheter with microporous membrane is provided which has an elongated optical fiber, an inner tubular member, a porous balloon member surrounding the inner tubular member, and fluid material provided between the inner tubular member and the porous balloon member. The porous balloon member having a plurality of holes of a size to permit medication delivered through a ...

The invention is a circuit for transmitting digital information which avoids wasting bandwidth when one channel is transmitted at a slower rate than another channel. A superframe is set up to include a plurality of multiplexed frames. At least one of the bursts in each frame is shared by a plurality of customers so that each customer can transmit a full payload once for each superframe.

A coated substrate for use in a glazing panel or optical filter to impart solar screening properties thereto while avoiding an aesthetically unattractive purplecolour in reflection is provided by the presence on the substrate of a stack of coating layers comprising (i) a layer of dielectric material, (ii) a layer of a metal selected from silver, gold, copper and alloys of one or more thereof, and ...

In an optical-fiber coupler formed by disposing two single-mode optical fibers 1 and 2 in parallel, and fusing and elongating the optical fibers at one position in the longitudinal extent of the optical fibers 1 and 2, variation of insertion loss dependent on the polarization can be eliminated in its manufacturing by imparting a twist to the optical coupling part 3' of the fused-elongated portion ...

A power supply system for driving reactor coolant recirculation pumps within an advanced boiling water reactor is configured in such a manner that: at least one normal-operation busbar branches off from either a main on-site power line or from a power line for auxiliary power generation that branches off from the main on-site power line, with a house transformer therebetween; at least one MG set i...

A power supply system for driving reactor coolant recirculation pumps within an advanced boiling water reactor is configured in such a manner that: at least one normal-operation busbar branches off from either a main on-site power line or from a power line for auxiliary power generation that branches off from the main on-site power line, with a house transformer therebetween; at least one MG set i...

A portable cellular radiotelephone (100), which is powered by main and auxiliary batteries (101, 102) in an operating state. The main and auxiliary batteries (101, 102) include respective memories (402, 410) for storing a 64- bit registration number and 1024 bits of data for identifying the type and brand of such batteries. Memories (402, 410) store a laser-engraved 64-bit registration number and ...

Analysis of a golfer's swing is effected by the golfer's swinging a club which has sensors fixed to the club shaft in such manner as to sense torsion of the shaft and flexing of the shaft in a direction corresponding to the direction of the swing pattern and perpendicular to the swing path. At selected times during the swing when the torsional and flexing forces are at predetermined values, a came...