Abstract:
The method provides for the formation of frayed ends on textile fibers (9) comprised of thermoplastic material by heating them sufficiently by means of a laser beam (12') so as to bring the fiber material to a visco-elastic state, while simultaneously submitting those fibers to a tensile stress so that the breaking of said fibers is preceded by an important striction. The method allows to manufacture particularly velvet and synthetic fur.
Abstract:
A wideband holographic cylindrical surveillance system including a transceiver for generating a plurality of electromagnetic waves; antenna for transmitting the electromagnetic waves toward a target at a plurality of predetermined positions in space; the transceiver also receiving and converting electromagnetic waves reflected from the target to electrical signals at a plurality of predetermined positions in space; a computer for processing the electrical signals to obtain signals corresponding to a holographic reconstruction of the target; and a display for displaying the processed information to determine nature of the target. The computer has instructions to apply Fast Fourier Transforms and obtain a three-dimensional cylindrical image.
Abstract:
A sand-based molding composition which can be compressed using hand pressure, and which starts as a free-flowing sand mixture, is formed by combining a solvent with a waxy binder and blending this with sand and subsequently stripping off the solvent. The molding composition includes the particulate material, preferably sand, coated with a thin coating of the waxy binder which is preferably a paraffin wax. A pigment can be added which will remain held by the binder and will not tend to stain. The molding composition can be compressed with the hand to form a molded article, and can be easily crushed to form a flowable, sandy product.
Abstract:
The invention is a method of measuring ammonia in a breath sample with a room temperature, near infrared laser. The invention is particularly useful for indicating the presence and activity of an intragastrointestinal Helicobacter pylori or other ammonia compound producing metabolisis.
Abstract:
Method and the product thereof, whereby a thermoset or thermoplastic composition is produced by steps of mixing and reacting a partially or fully formylated polydiene with a formyl reactant selected from the group consisting of melamine, phenol, urea, and mixtures thereof. The present invention significantly reduces the formaldehyde offgassing problem of formaldehyde type resins by coupling the formaldehyde group to a polymer such as a polydiene and then crosslinking the resultant polymers through the formaldehyde group. Formaldehyde groups can be linked to polymers such as polydienes through an oxo or hydroformylation reaction.
Abstract:
The invention greatly reduces the amount of ammonia in sewage plant effluent. The process of the invention has three main steps. The first step is dewatering without first digesting, thereby producing a first ammonia-containing stream having a low concentration of ammonia, and a second solids-containing stream. The second step is sending the second solids-containing stream through a means for separating the solids from the liquid and producing an aqueous stream containing a high concentration of ammonia. The third step is removal of ammonia from the aqueous stream using a hydrothermal process.
Abstract:
A method of recovering catalyst material from latent catalyst material solids includes: a) combining latent catalyst material solids with a liquid acid anolyte solution and a redox material which is soluble in the acid anolyte solution to form a mixture; b) electrochemically oxidizing the redox material within the mixture into a dissolved oxidant, the oxidant having a potential for oxidation which is effectively higher than that of the latent catalyst material; c) reacting the oxidant with the latent catalyst material to oxidize the latent catalyst material into at least one oxidized catalyst species which is soluble within the mixture and to reduce the oxidant back into dissolved redox material; and d) recovering catalyst material from the oxidized catalyst species of the mixture. The invention is expected to be particularly useful in recovering spent catalyst material from petroleum hydroprocessing reaction waste products having adhered sulfides, carbon, hydrocarbons, and undesired metals, and as well as in other industrial applications.
Abstract:
The present invention relates to new glass/polymer composites and methods for making them. More specifically, the invention is glass/polymer composites having phases that are at the molecular level and thereby practicably indistinguishable. The invention further discloses making molecular phase glass/polymer composites by mixing a glass and a polymer in a compatible solvent.
Abstract:
The corrosion monitor system facilitates the detection and monitoring of material corrosion in remote areas. Sensors, which react to a corrosive environment similar to the material to be monitored, are placed in isolated areas and connected to a central control system via shielded cables. The system consists of a controller board, multiple dual preamp boards, a battery pack, sensors, and corresponding cables. The controller board consists of a microcontroller, memory, data conversion, and other control circuits. The dual preamp boards contain multiple precision instrumentation amplifiers, filtering, and voltage conversion circuits. The system operates on the principal that corrosion of a metallic conductor will cause a corresponding increase in the cross-sectional electrical resistance of that conductor. This change in resistance can be detected and monitored by passing a known constant current through the conductor and comparing the voltage across the conductor with that of a controlled reference conductor. The reference conductor is not exposed to the corrosive environment. As the sample conductor corrodes, small increases in the voltage across the element are measured with respect to the reference material. The resultant signals are multiplied and filtered to a detectable level and processed by the controller as data points stored in memory.
Abstract:
A method for converting organic material into a product gas includes: a) providing a liquid reactant mixture containing liquid water and liquid organic material within a pressure reactor; b) providing an effective amount of a reduced metal catalyst selected from the group consisting of ruthenium, rhodium, osmium and iridium or mixtures thereof within the pressure reactor; and c) maintaining the liquid reactant mixture and effective amount of reduced metal catalyst in the pressure reactor at temperature and pressure conditions of from about 300 DEG C to about 450 DEG C and at least 130 atmospheres for a period of time, the temperature and pressure conditions being effective to maintain the reactant mixture substantially as liquid, the effective amount of reduced metal catalyst and the period of time being sufficient to catalyze a reaction of the liquid organic material to produce a product gas composed primarily of methane, carbon dioxide and hydrogen.