A circuit is described for applying a potential to an electrode of a biosensing test cell, which electrode, when properly inserted in a female connector, is contacted by a pair spaced apart contacts. The circuit includes a source of excitation potential and an operational amplifier having one input connected to the source of excitation potential. A switching circuit is coupled between the operatio...

A biosensing system is described which determines whether a measured current is varying in accordance with a predetermined Cottrell current relationship. The system includes a test cell with at least a pair of electrodes which extend into a reaction zone, which reaction zone includes analyte reactants. An analog signal detector, in combination with a microprocessor, take plurality of current measu...

A needle alloy wherein the nickel content is between 6.3% and 9.5%, the chromium content is between 11.5% and 12.5% and the molybdenum content is between 3% and 4%. In addition, tantalum and titanium should be present at a combined level of no more than 2.1%. Favorable results from this alloy cause needles to have a greater than 400,000 psi ultimate tensile strength.

PERFECCIONAMIENTOS INTRODUCIDOS EN LOS PROCESOS DE FABRICACION DE PRODUCTOS REFORZADOS CON FIBRAS CONTENIENDO MICA. DICHOS PROCESOS COMPRENDEN: A) PREPARACION DE UNA SUSPENSION ACUOSA DE LIGANTE INORGANICO, FIBRAS REFORZANTES, FIBRAS DE RETENCION, MICA, ADITIVOS INORGANICOS PARA MEJORAR LA FILTRACION, FLOCULANTES O DISPERSANTES Y OPCIONALMENTE OTROS ADITIVOS CONVENCIONALES; B) CONFORMADO EN HUMEDO...

The invention concerns a method for separating the isomers of a crown compound and making it possible to recover in particular the pure cis-syn-cis isomer from DCH 18C6. This method includes the following stages : a) dissolving in an organic solvent a mixture of the isomers of said crown compound including the cisanti-cis isomer and the cis-syn-cis isomer, b) adding uranyl nitrate to the solution ...

(57) Ultrasonic gas/liquid flow meter with a Wshaped path inside the tube. The two transducers (101, 102; 201, 202) are offset axially from the execution of known geometry with a W-shaped measurement section and/or are set at an angle such that the transducers and the W-shaped path are not situated orthogonally in relation to each other.

The invention relates to a lock cylinder with an associated key which, apart from its mechanical locking function, also allows the inductive transmission of an electric signal between the key and the lock cylinder, which can e.g. be used for the electronic identification of the key. The signal transmission is brought about by a coil (21) in the key and a coil (16) in the lock cylinder, which are a...

The invention relates to a lock cylinder with an associated key which, apart from its mechanical locking function, also allows the inductive transmission of an electric signal between the key and the lock cylinder, which can e.g. be used for the electronic identification of the key. The signal transmission is brought about by a coil (21) in the key and a coil (16) in the lock cylinder, which are a...

The invention relates to a lock cylinder with an associated key which, apart from its mechanical locking function, also allows the inductive transmission of an electric signal between the key and the lock cylinder, which can e.g. be used for the electronic identification of the key. The signal transmission is brought about by a coil (21) in the key and a coil (16) in the lock cylinder, which are a...

LOCK CYLINDER WITH SIGNAL TRANSMISSION BETWEEN THE KEY AND CYLINDER The invention relates to a lock cylinder with an associated key which, apart from its mechanical locking function, also allows the inductive transmission of an electric signal between the key and the lock cylinder, which can e.g. be used for the electronic identification of the key. The signal transmission is brought about by a co...

Sugar derivatives of the general formula I and II in which R1 is a hydrogen atom or an alkyl group with 1 to 7 carbon atoms, R2 and R3 are a hydrogen atom or, if R1 is an alkyl group, are also an acyl group R4CO, R is a hydrogen atom or an acyl group R5CO, and R4 and R5 are an alkyl group with 1 to 7 carbon atoms, have an excellent antiproliferative/cytotoxic activity with very low toxicit...

Sugar derivatives of the general formula I and II in which R1 is a hydrogen atom or an alkyl group with 1 to 7 carbon atoms, R2 and R3 are a hydrogen atom or, if R1 is an alkyl group, are also an acyl group R4CO, R is a hydrogen atom or an acyl group R5CO, and R4 and R5 are an alkyl group with 1 to 7 carbon atoms, have an excellent antiproliferative/cytotoxic activity with very low toxicit...

A pH controlled protein removal system and a method of using it in the substantial absence of a protein digesting enzyme and, preferably, in the substantial absence of a surfactant is disclosed. The system is a pH-controlled protein-cleaning composition for e.g. contact lenses comprising (a) water; (b) a tonicity builder sufficient to render said composition ophthalmically acceptable; and (c) a pH...

2070377 9109091 PCTABS00005 Novel azeotrope-like compositions comprising 1,2-difluoroethane and dichlorotrifluoroethane which are useful in a variety of industrial applications including refrigerant applications, solvent applications, and blowing agent applications.

Large-area decorations comprising glazes, ceramic colour and the like on glass ceramic, glass, ceramic or similar fusible substrates, in particular on glass ceramic hobs, are applied by the novel process by means of a laser beam which is spread in line form over the entire width of the area to be decorated, as it were in a zone melting process. The line form energy-supply zone is passed on so rapi...

Biological process for aerobic nitrification of effluents. According to this process the biomass is fixed on to a granular solid support acting as a substrate for the said biomass. This process applies very particularly to the treatment of sewage with a view to removing ammoniacal nitrogen therefrom.

L'invention concerne un réacteur de nitrification biologique aérobie d'effluents contenant des ions NH4+, caractérisé en ce que la biomasse nitrifiante est fixée sur un support sous forme granulaire qui joue le rôle de substrat pour la biomasse, et en ce que la nitrification se fait en lit agité ou fluidisé. L'invention concerne aussi un procédé biologique de nitrification aérobie d'effluents. Ce ...

An exclusive memory region control system in a computer system has a CPU (5) and a main memory (1) including an exclusive memory region (2). The exclusive memory region (2) has a small control area (2-1) provided in the exclusive memory region (2) the main memory (1) and including data designating whether a software lock is applied to the exclusive memory region. The system comprises a hardware lo...

The present invention is directed to a method of heating a glass body which comprises heating a part of the glass body with relative movement of the glass body and a heating source, wherein an inert gas is blown from an inert gas-blowing means onto the surface of the glass body near a heated part of the glass body. This method prevents the redeposition of glass particles and is particularly useful...

In a plastic pipe joining system a plastic sleeve is provided to extend on both sides beyond the region of contact or closest approach to one another of pipes to be joined with the sleeve being fused to both pipes, the sleeve heated to Curie temperature of high mu material excited by an externally generated high frequency magnetic field. The heater may be embedded in the sleeve and the sleeve may ...