Abstract: Both a method and apparatus for producing molten steel are provided wherein ferrous materials rich in carbonaceous materials are fused in a first vessel of a single electric furnace having separate first and second vessels. The carbonized molten metal thus obtained is then pretreated in a separate pretreatment facility to remove contaminants and the pretreated molten metal is then decarburized in the second vessel of the electric furnace. The decarburization of the pretreated metal in the second vessel of the furnace avoids reintroducing contaminants into the steel by avoiding contact between the pretreated metal and the slag produced when the initial carbonaceous materials are fused. Preferably, the first and second vessels are two vessels of a single electric furnace having a single electric power source.

Abstract: The invention proposes a memory relay system for observation spacecraft, for example observation satellites or interplanetary probes. The object of the invention is to alleviate the absence or possible failure of onboard memory of these craft. The system of the invention provides a substitute solution which returns full functionality to an observation system capable of acquiring and transmitting observation data but not of storing it. In accordance with the invention, an artificial satellite or craft comprising at least one transponder and at least one writable memory is disposed near an observation satellite or a probe. The transponder is capable of receiving signals transmitted by the observation satellite or probe and then transmitting the signals to the Earth or to another destination. The memory of this artificial satellite or craft stores the information received until it is retrieved and retransmitted to the receiving station, a station on the ground, for example.

Abstract: A compound of formula (I): ##STR1## in which: R represents naphthyl, 5,6,7,8-tetrahydronaphthyl, 1,2,3,4-tetrahydronaphthyl, thienyl, optionally substituted phenyl or (C.sub.3 -C.sub.7)cycloalkyl,n represents an integer such that 1.ltoreq.n.ltoreq.8, their enantiomers, diastereoisomers and epimers as well as their addition salts with a pharmaceutically acceptable acid or base and medicinal products containing the same are useful as antagonists of substance P.

Abstract: A method of sealing a duct having a non-uniform cross-section which comprises:(i) positioning within the duct a device for locating a sealing material at a localized portion of an inner surface of the duct, at the non-uniformity; and(ii) positioning within the duct a sealing member than can at least partially block a cross-section of the duct such that the sealing material forms a seal between a portion of the duct and a portion of the sealing member.

Abstract: A method of improving the light fastness of textile materials using an aqueous dispersion of a compound of formula I, ##STR1## having a first (A) and a second (B) benzoxazine-4-one ring joined by a phenylene bridging member; a variable bond between the first benzoxazine-4-one ring (A) and the phenylene bridging member, said variable bond being meta- or para- to the bond between the second benzoxazine-4-one ring (B) and the bridging member; wherein each R.sub.1 is independently hydrogen, halogen, nitro, C.sub.1-2 alkyl, C.sub.1-4 alkoxy, carboxy, sulfonic acid, C.sub.1-3 alkylcarbonyl, benzoyl or C.sub.1-4 alkoxycarbonyl and; R.sub.2 is hydrogen, chlorine, bromine, methyl, C.sub.1-2 alkoxy, phenyl, hydroxy, nitro, carboxy or sulfonic acid.

Abstract: An electro(stato)graphic method is provided, comprising the steps of image wise applying toner particles to a final substrate and fixing the toner particles on a final non-photoconductive substrate, characterized in that(i) the toner particles comprise at least one substantially light insensitive silver salt (compound B) and at least one reductant (compound A), so as to be capable, upon reaction of compound A and B, of forming a light absorbing substance in said final substrate,(ii) the toner particles optionally comprise a light absorbing pigment or dye(iii) the light absorbing substance can give a maximum density (D.sub.max)>2.00 either on itself or in combination with said light absorbing pigment or dye and(iv) the toner particles are fixed on to the final substrate by heat or by heat and pressure.

Abstract: A heat-sensitive recording material suited for use in direct thermal imaging by means of an information-wise energized heating element, which recording material comprises on the same side of a support, called the heat-sensitive side, one or more binder layers containing a substantially light-insensitive metal salt in thermal working relationship with at least one organic reducing agent, characterized in that said recording material also comprises an acid-sensitive leuco dye transformable into dye by means of an acid-reacting compound serving as dye developer that stands in thermal working relationship with said leuco dye.

Abstract: Program-controlled communication system, whereby a call request is simultaneously signaled at a plurality of communication terminal equipment. The call request that is addressed to a specific terminal equipment (KE-D) is simultaneously signaled at at least one further terminal equipment (KE-C). These terminal equipment preferably belong to a group of terminal equipment integrated in the communication system which have key functions. When the call is accepted by a terminal equipment (KE-C), then, after the set up of a connection to the other terminal equipment, a connection can be automatically set up between this terminal equipment and the originally calling terminal equipment (KE-A) by actuating a special key (ST). Simultaneously, the call set up between the two first-cited terminal equipment is cleared down.

Abstract: The present invention relates to novel photoactivable rhodamine derivatives for enhancing high quantum-yield production and singlet oxygen generation upon irradiation with light while maintaining desirable differential retention of rhodamine between normal and cancer cells, said derivatives are selected from the group consisting of 4,5-dibromorhodamine 123 (2-(4,5-dibromo-6-amino-3-imino-3H-xanthen-9-yl)-benzoic acid methyl ester hydrochloride); 4, 5-dibromorhodamine 123 (2-(4,5-dibromo-6-amino-3-imino-3H-xanthen-9-yl)-benzoic acid ethyl ester hydrochloride); 4, 5-dibromorhodamine 123 (2-(4,5-dibromo-6-amino-3-imino-3H-xanthen-9-yl)-benzoic acid octhyl ester hydrochloride); 4,5-dibromorhodamine 110 n-butyl ester (2-(4,5-dibromo-6-amino-3-imino-3H-xanthen-9-yl)-benzoic acid n-butyl ester hydrochloride); Rhodamine B n-butyl ester (2-(6-ethyl amino-3-ethyl imino-3H-xanthen-9-yl)-benzoic acid n-butyl ester hydrochloride); and photoactivable derivatives thereof; whereby photoactivation of the derivatives induces c

Abstract: A roller is rotatably mounted about its axis and comprises a hollow, cylindrical roll face, a ring and two hollow shafts. The roller is provided with a force measuring fiber optical device which uses the double refraction in an optical fiber subjected to a lateral force. The optical fibers of the measuring device form coils, each having at least one turn and the cylindrical roll face.

Abstract: Tris-aryl-s-triazines which contain from one to three resorcinol derived moieties with at least one of said moieties substituted at the 5-position with an alkyl, phenylalkyl, halogen, thio or sulfonyl group have UV spectra which are red-shifted to the near UV range and provide excellent stabilization to polymeric substrates against the deleterious effects of actinic light.

Abstract: A microswitch includes two coaxial columnar permanent magnets having poles of the same polarity facing one another or poles of different polarities facing one another, defining an air gap therebetween. The permanent magnets generate magnetic fields defining a boundary region. A magnetic field sensor, which may or may not be chip-like, is disposed in the boundary region and is fixedly disposed in the air gap, optionally in the axial direction in the air gap. A switch device is connected to the magnetic field sensor and has a switching status varying in accordance with magnetic induction at the magnetic field sensor.

Abstract: A connector for shielded cables comprises a housing of insulating material and signal and ground contacts accommodated in said housing and to which corresponding conductors of the cables are connectable, said contacts being arranged in rows and columns. The housing is assembled of one or more modules and at least one module cap, wherein each module can be detachably mounted in the module cap in a predetermined position with respect to the module cap, and wherein each module is provided with at least one column of contacts.

Abstract: An overbalance technique propagates a fracture in a formation to stimulate hydrocarbon production from a wellbore. A liquid column in the wellbore is driven into the formation by a gas generator to propagate the fracture. The gas generator can be compressed gas or propellant which is placed within the wellbore near or in the liquid column. Preferably the gas generator is placed in the wellbore above the production zone. The gas generator can be conveyed via tubing, wireline, or coiled tubing. Typically the liquid is brine, water or oil. The liquid can be a resin to consolidate a weak formation, sand and gel to prop a fracture, or acid to etch a fracture face. The overbalance technique has applications to cased and openhole wellbores. In cased wellbores, the technique can be performed as the casing is perforated or after the casing is perforated.

Abstract: The invention relates to new purified antigens of the LAV virus. They have molecular weights of about 135,000 and 150,000 daltons. They are useful for the detection of LAV antibodies in human sera. They are produced by hybrid cell-lines resulting from the fusion of T4 lymphocytes and cells of the MOLT-4 cell line.

Abstract: A method and apparatus for treating atrial tachyarrhythmias, particularly atrial fibrillation. High energy pulses are delivered between electrodes located in the right atrium/SVC, the right ventricle and the coronary sinus/great vein, with the right ventricular and coronary sinus/great vein electrodes connected in common. Optionally a subcutaneous electrode, preferably located in the left pectoral area may also be employed, coupled in common to the right atrial/SVC electrode.

Abstract: The present invention provides triazene dyes according to formula (I) for use in thermal transfer printing:A--N.dbd.N--NR.sup.1 R.sup.2 (I)wherein A is the residue of a diazotisabie heteroaromatic amine, R.sup.1 and R.sup.2 independently represent hydrogen, an alkyl group, a substituted alkyl group, an alkenyl group, a substituted alkenyl group, an aryl group, a substituted aryl group, a cycloalkyl group, a substituted cycloalkyl group, an aralkyl group, or R.sup.1 and R.sup.2 represent the atoms necessary to complete a ring system or a substituted ring system.

Abstract: A connector assembly for printed circuit boards comprises a first and a second connector part. The first connector part has a first housing of insulating material and having a bottom and two opposite side walls and with male contact elements mounted in the bottom of the housing and arranged in rows and columns and having portions projecting from the bottom of the housing adapted to be inserted into holes of the corresponding printed circuit board. The second connector part has a second housing of insulating material adapted to be inserted into the first housing with an insertion side and with female contact elements mounted in the housing and arranged in a corresponding manner in rows and columns and having portions projecting from a lower side of the housing, which projecting portions can be inserted into holes of the corresponding printed circuit board.

Abstract: A process for bending a glass sheet according to which the glass sheet is heated in horizontal position until its bending temperature is reached and is brought into contact with an upper bending form by a force of a pneumatic nature. A fluid barrier is generated at the periphery of the glass sheet, the fluid barrier limiting the entry and exit of air near the upper bending form.

Abstract: A compound of formula (I): ##STR1## in which X, n, B and Y are as defined in the description. useful as cytokine inhibitors.