Abstract:
A first electrode arrangement and a transport element are movable relative to a support. A working space is disposed between the movable elements for advancing moist material along a processing path. As the moist material advances, electrical current is passed through the material between the first electrode arrangement and a second electrode arrangement adjacent the transport element. An acoustic transducer arrangement disposed adjacent the working space simultaneously subjects the moist material to an acoustic field as the material moves along the processing path. The acoustic field is generated by an array of acoustic transducers spaced along part of the processing path.
Abstract:
Soil vitrification is mainly used as an effective and cost efficient way for containing or stabilizing contaminated soil. Vitrification, or turning the soil into a solid glasslike substance prevents chemical or radioactive contaminates from leaching. In-situ vitrification of soil is initiated by placing a cord (14) of dielectric material impregnated with conductive material in thermally-conductive contact with the soil, and energizing the cord with an electric current for heating the cord and starting the vitrification process.
Abstract:
A method of coating a substrate comprises plasma spraying a prealloyed feed powder onto a substrate, where the prealloyed feed powder comprises a significant amount of an alloy of stainless steel and at least one refractory element selected from the group consisting of titanium, zirconium, hafnium, niobium, tantalum, molybdenum, and tungsten. The plasma spraying of such a feed powder is conducted in an oxygen containing atmosphere and forms an adherent, corrosion resistant, and substantially homogeneous metallic refractory alloy coating on the substrate.
Abstract:
Disclosed is a device for analyzing a biological fluid comprising one or more unit cells for the conductimetric determination of an analyte in the fluid sample. Each unit cell comprises a first porous support to which biological reagents for detection of an analyte are immobilized, and a first and a second electrode spaced a fixed distance apart, wherein the porous support is adjacent to the first and second electrodes. The electrodes may be porous, with the unit cells disposed in a housing having at least one fluid flow path therein, in such a manner that fluid traversing a first fluid flow path in the housing must pass through the electrodes and the porous supports of the unit cells. Also disclosed is a method for carrying out multiple simultaneous conductimetric analyte determinations for a single sample.
Abstract:
An apparatus and method for continuously removing liquid from an aqueous suspension; the apparatus consists of a filter housing; an electrofilter disposed within the housing to provide a crossflow chamber and filtrate chamber within the housing; means for supplying a suspension to the crossflow chamber and means for removing a suspension reduced in liquid content from the crossflow chamber, both means may be disposed so as to provide a crossflow of the suspension across the surface of the electrofilter or disposed to provide a batch process with optional stirring means; and outlet means for removing liquid from the filtrate chamber. A first electrode of the electrofilter is disposed on a surface of the crossflow chamber side of the electrofilter when the filter material of the electrofilter is nonconductive. If the electrofilter is conductive it can function as the first electrode as well as a filter. A second electrode is disposed on the filtrate side of the electrofilter. A method for continuously separating a liquid from an aqueous suspension while reducing membrane or filter fouling includes providing a crossflow apparatus having an electrofilter disposed therein; pumping the aqueous suspension into the crossflow aparatus at a pressure adapted to cause flow of filtrate through the electrofilter; and concurrently with pumping the suspension into the apparatus supplying electrical energy to the electrofilter at a voltage adapted to reduce fouling of the electrofilter.
Abstract:
A method for inhibiting sulfide stress corrosion cracking and hydrogen induced stepwise cracking in a metal (e.g. pipeline steel) that comprises contacting the metal at a pH of 5.3 or below with an effective inhibiting amount of a glycolipid-containing product obtained from a fermentation using Torulopsis bombicola.
Abstract:
A therapeutic composition comprising a chemical conjugate including a first moeity, other than an immunoglobulin or fragment thereof, such as epidermal growth factor, which preferentially binds to a tumor cell, and is internalized by the cell, and a second moiety linked to the first moiety, and comprising a biodegradable polymeric carrier, such as polyglutamic acid, to which one or more cytotoxic molecules, for instance, daunomycin, are attached. The degradation of the carrier by intracellular enzymes releases a cytotoxic agent, resulting in selective destruction of the tumor cells.
Abstract:
The iron comprises a collapsible handle (11) containing a gas cartridge (10) which is mounted oscillating on a connection part (12) which comprises a regulating valve controlled by a hand-operated member (23) on the one hand, and by a bimetal strip (29() on the other hand. The gas coming out of said valve is directed in a venturi (5) carrying a burner (6). The bimetal stream (29) is connected to the ironing sole (1) by means of an aluminium stud (30) which is located upstream of the combustion chamber delimited by the walls (2, 4) in order to regulate the valve as a function of the temperature of the sole.
Abstract:
Solid films are deposited, or fine powders formed, by dissolving a solid material into a supercritical fluid solution at an elevated pressure and then rapidly expanding the solution through a short orifice into a region of relatively low pressure. This produces a molecular spray which is directed against a substrate to deposit a solid thin film thereon, or discharged into a collection chamber to collect a fine powder. Upon expansion and supersonic interaction with background gases in the low pressure region, any clusters of solvent are broken up and the solvent is vaporized and pumped away. Solute concentration in the solution is varied primarily by varying solution pressure to determine, together with flow rate, the rate of deposition and to control in part whether a film or podwer is produced and the granularity of each. Solvent clustering and solute nucleation are controlled by manipulating the rate of expansion of the solution and the pressure of the lower pressure region. Solution and low pressure region temperatures are also controlled.
Abstract:
The refractometer comprises a light source (D, E, L), a prism (P) immersed in a liquid (L) and of which the incidence face is a cylinder portion. The emergence face (2) of said beams is cut according to an acute angle ( theta ) with respect to a diametral plane (3) of the cylindrical face so that the beams refracted through the prism with two different temperatures, but for a liquid of a given concentration, emerge from the face (2) by converging to a common area, having thereby a tendency to measure the liquid concentration independently of temperature variations.