The invention is related to a device for measuring the flowrate of fluid through a well. The device according to the invention comprises an upper portion adapted for connection with a cable, two elongated side members, generally parallel to and spaced from each other, secured to the upper portion, a vortex generating assembly comprising at least one obstacle secured between said side members trans...

The invention relates to apparatus for detecting the stuck point of a conduit, such as drill pipes, in a borehole while eliminating any stress on the detection means during the measurement. A two-part body member is suspended from a cable with the two parts (23 and 24) mounted movably with respect to each other. Each part is anchored independently in the drill pipes and movements between these par...

p-tert.Butylbenzaldehyde and the derivatives thereof which are halogen-substituted at the nucleus are prepared by bromination of p-tert.butyltoluene and the derivatives thereof which are correspondingly halogen-substituted at the nucleus under side-chain halogenation conditions until the benzal bromide is obtained which is then saponified. Practically no undesired bromination at the nucleus or the...

An improved method of operating an activated biomass process wherein influent and activated biomass are initially contacted under anaerobic conditions to form a mixed liquor, the mixed liquor is subsequently oxygenated, thereafter activated biomass is separated from the mixed liquor and at least a portion of the separated biomass is introduced into the initial contacting step. The improved method ...

1. Claims for the Contracting States : BE CH DE FR GB IT LI NL SE An azolylmethyloxirane of the general formula I see diagramm : EP0094564,P22,F4 where A and B are identical or different and, independently of one another, are naphthyl, biphenyl or phenyl, it being possible for the phenyl radical to be substituted by halogen or nitro, or by alkyl, alkoxy or haloalkyl, each of 1 to 4 carbon atoms,...

An apparatus and process for forming molded articles from particulate plastic material. A hollow heat-conductive male mold is surrounded with particulate plastic material. Heat is applied to the interior of the mold until the temperature of the outer surface is above the fusion temperature and below the melting temperature of the particulate plastic material. This temperature is maintained until a...

New compounds useful as therapeutical agent and useful as intermediates for the preparation of other therapeutically active dihydropyridines. which new compounds are of the formula wherein R<1> is one or two (the same or different) substituents on the phenyl ring selected from the group consisting of lower alkyl, NO2, CN, CF3, Cl and Br; A is a straight or branched alkylene group with 2-5 c...

The invention relates to N-glycosylated carboxamide derivatives of Formula I which are useful for influencing the body's inherent defenses, e.g. for increasing immune system antibodies. Also included in the invention are compositions containing said N-glycosylated carboxamide derivative of Formula I as active ingredients and methods for the use of said compounds and compositions.

Ethosuximide immunogens, antibodies prepared therefrom, labeled ethosuximide conjugates, synthetic intermediates, and the use of such antibodies and labeled conjugates in immunoassays for determining ethosuximide. The immunogens comprise ethosuximide coupled at its 3-position to an immunogenic carrier material. Likewise, the labeled conjugates and synthetic intermediates are 3-position derivatives...

Described are rapid and highly efficient procedures for the total synthesis of linear, double stranded DNA sequences of up to about 200 base pairs, which sequences may comprise entire structural genes. Illustratively disclosed is the preparation and expression of manufactured genes, including fusion genes, capable of directing synthesis of human beta -endorphin and of proteins which differ from h...

An adherently bonded polycrystalline diamond body is produced by forming a charge composed of a mass of diamond crystals in contact with a mass of eutectiferous silicon-rich alloy wherein the alloy is in contact or in association with hexagonal boron nitride, confining such charge within a reaction chamber, subjecting the confined charge to a pressure of at least 25 kilobars, heating the pressure-...

The invention relates to an aerating device for sewage and comprises a drum-like rotor which rotates in a trough and is divided, by axially-parallel partitions, into a plurality of outwardly-open radial chambers, the said partitions being equipped with peripheral outer surfaces having apertures so that during rotation of the drum a volume of air is trapped in each chamber. Internal baffels in said...

NMR imaging apparatus comprising apparatus for applying a linear magnetic field gradient to a sample, apparatus for varying the magnetic field gradient in a predetermined manner, apparatus for obtaining an NMR signal based on the linear magnetic field gradient, apparatus for storing the NMR signal, apparatus for reconstructing an NMR image from the stored NMR signal, and display apparatus for disp...

Removal of urea, ammonia and carbon dioxide from diluted aqueous solutions, for instance urea process effluent, the solution being led into the top of a reaction column under a pressure of 10-30 bar, in which it flows down in counter-current to a flow of gas, for instance steam. The temperature in the top of the reaction column is 170-220 DEG C; at the bottom, it is 180-230 DEG C. Next, at a press...

A racemic or optically active alkyl 2-chloropropionate is prepared, respectively, from a racemic or optically active alkyl lactate by, in a first step, gradually bringing the alkyl lactate into contact with the thionyl chloride, in the presence of an organic base, while maintaining, in the reaction mixture, an excess of thionyl chloride, relative to the amount of alkyl lactate introduced into this...

A solar energy concentrating and collecting arrangement comprises laterally adjacent oblong concave reflectorconcentrators forming the roof of a building. Collectors are movably supported above and along the lengths of the reflectors for pivotal movement to zones of maximum confluence of solar energy rays reflected from the reflectors to follow daily and annual variations of the position of such ...

Method and apparatus for detecting the presence of hydrocarbons and other substance that fluoresces or absorbs light within a body of water which utilizes a controlled submersible vehicle scanning at or near the water bottom. The method utilizes a selected frequency light source as carried by the submersible to scan the water bottom, and the returned light energy, either at the wavelength of oil f...

A composition for forming a molded article having the external appearance resembling that of natural cork which comprises, a thermoplastic resinous material as the major ingredient thereof, a caramel colorant which is present in an amount sufficient to impart to the thermoplastic resinous material the color of natural cork, and a blowing agent, said thermoplastic resinous material being compatible...

An arrangement for the distribution of pressurized fluid to areas of a seat unit having a backrest comprising a first fluid-containing chamber adaptable to the seat area of the seat unit so as to be adapted to receive, at least in part, the user's weight; one or more inflatable chamber adaptable to the seat unit backrest; and lines communicating between the first chamber and each said backrest cha...