A circuit for driving a switching transistor which includes a driving pulse transformer having a primary winding to which a switching pulse is applied, a secondary winding connected to the base and the emitter of the switching transistor to turn on the switching transistor by the switching pulse applied to the primary winding, and a third winding. The third winding is connected to the emitter or t...

The skis assembled running sole against running sole are gripped by the strap 1 after having slipped the fabric loop 2 into the plastic buckle 3. The handle 6 is then engaged in the fabric loop 2. This same handle 6 ensures holding of the assembly and its transportation. After having disengaged the handle, the skier obtains the unrolled assembly, as shown. The skier rolls the strap 1 around the ...

The present invention relates to an improved mechanical razor. This razor essentially comprises a head 1 provided with at least one blade 2 and with which is associated an annulus- or ring-shaped element 3 capable of receiving the finger of a user. Such a razor may be of the disposable type and in particular makes it possible to shave the skin of the face. ;

La présente invention concern...

The stone or similar material is impregnated, at least to a certain depth under the exposed surface, with a resin containing at least one group originating from formaldehyde. In particular, the resin forms part of the urea-formaldehyde resin class. This ensures a curative or preventative treatment of the stone or similar materials against any biological attack, in particular against stone disease....

A laundry bar for use in the handwashing of fabrics comprises from 15% to 45% by weight of anionic detergent material, from 5% to 60% by weight of detergency builder material, and from 5% to 25% by weight of an alkali metal sulphite. Preferred builder material is a mixture comprising sodium carbonate. Preferred alkali metal sulphite is sodium sulphite. The laundry bar shows bleach stability on sto...

Aqueous precoating agents containing 5 to 30 % by weight of amino- containing copolymers obtained by copolymerisation of a) 50 to 90 % by weight of one or more nitrogen-free monomers containing an olefinic double bond and b) 50 to 10 % by weight of one or more linear-polymerisable monomers containing at least one tertiary amino function, and/or diallylamine, the copolymers optionally being fully o...

A femoral hip prosthesis comprises a stem component generally divided into a proximal portion and a substantially longer distal portion. The stem has a slight posterior bow along its length. The proximal portion includes a slight twist of from about 5 DEG to 15 DEG , the twist extending in a direction from the anterior to the posterior face of the stem through the medial face thereof. The charact...

A mechanism for performing fast and efficient full shift, merge, insert and bit alignment functions within one operating machine cycle of a host primitive instructions set computing system. In general, the circuitry performs a ring shift under control of a mask. The circuitry further combines essentially parallel rotate and mask and merge functions all executable in one machine cycle. The circuitr...

An internal bus mechanism for implementation in a computing system characterized by having a limited number of primitive general function instructions provided for controlling all system operations. The architecture of the internal bus mechanism defines a bus instruction format which specifies the bus unit being requested, the operation being requested, and sufficient data to specify the operands ...

PURPOSE:To enable troubles such as short-circuiting to be identified by monitoring at the emulator side the signals supplied through an address bus or a data bus. CONSTITUTION:For testing an address bus 12, a buffer 14 is turned ON by control outputs C1-C3 of a test mode register 11 while buffers 8, 15 are controlled to be in high impedance state. The signals from an address bus 12 are introduced ...

PURPOSE:To smooth movement by constituting a driving device driving linearly in the diameter direction of a disk of a means supporting linearly movably freely for the chassis, a guiding means composed of a rack gear, a means transmitting the driving force of a motor by engaging the gears and a means interlocking a pickup with the rack gear. CONSTITUTION:A rack gear part, a gear part, a guiding mea...

The present invention relates to a process for inhibiting corrosion of an existing steel material built in an inorganic material by applying an aqueous solution of an inorganic salt and a cement composition having corrosion-inhibiting effects on the surface of the inorganic material.

Le procédé selon l'invention comporte essentiellement une étape 2 de fragmentation de l'ADN, une étape 4 de réactions chimiques spécifiques des bases constituant l'ADN pour former des familles de chaînes dont l'une des extrémités est constituée d'une base spécifique, une étape 6 de marquage spécifique de ces chaînes avec des isotopes stables, une étape 10 de séparation des chaînes par électroph...

La présente invention concerne un dispositif semiconducteur.

Le dispositif est caractérisé en ce qu'il comprend au moins une couche isolante 16 à forte conduction de chaleur de façon que de la chaleur dans une portion de production de chaleur 15 soit retirée par un circuit de circulation de chaleur comportant ladite couche.

La présente invention trouve application dans des circuits ...

Aqueous precoating agents containing 5 to 30 % by weight of amino- containing copolymers obtained by copolymerisation of a) 50 to 90 % by weight of one or more nitrogen-free monomers containing an olefinic double bond and b) 50 to 10 % by weight of one or more linear-polymerisable monomers containing at least one tertiary amino function, and/or diallylamine, the copolymers optionally being fully o...

Aqueous precoating agents containing 5 to 30 % by weight of amino- containing copolymers obtained by copolymerisation of a) 50 to 90 % by weight of one or more nitrogen-free monomers containing an olefinic double bond and b) 50 to 10 % by weight of one or more linear-polymerisable monomers containing at least one tertiary amino function, and/or diallylamine, the copolymers optionally being fully o...

A package with a preferentially releasable seal is provided, suitable for use in microwaveable food cooking. The seal includes a heat-releasable polymer in contact with a microwave susceptor material. Upon heating in a microwave oven, the seal releases in response to force generated by the cooking of the food.

The present invention is directed to an expert system for diagnosing faults. The system comprises a knowledge base containing information regarding a conceptual model of the equipment under diagnosis. The system also comprises an inference engine for generating a set of symptom diagnostic rules from the information contained within the knowledge base in conjunction with user-generated inputs.

Anthracycline glycosides of the general formula (A'): wherein R1 represents a hydrogen atom, a hydroxy group or a methoxy group; one of R2 and R3 represents a hydroxy group and the other of R2 and R3 represents a nitro group; and R4 represents a hydrogen atom or a hydroxy group; and their pharmaceutically acceptable salts; have anti-tumor activity.

A novel process for the preparation of 7-acylamino-3-(thio-substituted)-methyl-3-cephem-4-carboxylic acid 1-oxide derivatives comprising reacting a 7-acylamino-3-bromomethyl-3-cephem-4-carboxylic acid-1-oxide derivative with a silylated thiol of the formula R-S-Si(CH3)3 I wherein R is an organic group, preferably a 5- or 6-membered heterocyclic group, which reaction is preferably carried out in th...