摘要:
Apparatus and methods for the determination of moisture content of a sample carried on a conveyor belt. Microwave signals at a number of discrete frequencies within a range are transmitted through the sample and the phase shift of the received signals is averaged and combined with measurement of attenuation or mass per unit area to provide a measure of moisture content of the sample. The invention is applicable to measurement of moisture content of crushed coking and steaming coals.
摘要:
The present invention discloses both methods and apparatus for carrying out proton magnetic resonance thermal analysis (PMRTA) measurements in which the non-equilibrium transient NMR response is measured with acceptable time resolution whilst the sample is subjected to a specified temperature regime. The technique is applicable to many materials including coal and polymers. The automation of a known manually operable limited temperature range NMR spectrometer to provide a PMRTA having a high temperature capability is disclosed. A probe (105) suitable for holding the sample and having an RF coil (109) and heater (107) is also disclosed.
摘要:
An effluent treatment process which comprises the steps of: a) adding a coagulant to the effluent to concentrate the organic material therein; b) treating the thus concentrated organic material with a mixture of a cationic polymer or copolymer in the presence of an anionic surfactant, a monionic surfactant or both; and c) separating the organic material from the effluent by flotation.
摘要:
Production of an electrosuspension of particles (5), comprising an insulating container (3) fitted with two spaced apart electrodes (2, 4) between which a high electrical potential is applied. At least one of the electrodes (2) is mounted for rotation by an associated electric motor (20). The electrode mounted for rotation preferably has a drum like configuration formed by a plurality of circumferentially spaced apart conductors (6). In a second aspect the invention produces an electrosuspension of micronised particles where one of the electrodes is in contact with a bed of particles and a second electrode is spaced above the particles. Field concentrating conductors are connected with the second electrode to generate ions and irradiate the surface of the particulate material with ions of opposite polarity to the first electrode.
摘要:
A tube fitting particularly adapted to inert polymeric tubing, has a polymeric plug (11) with a tapered seat (15) and a relief portion (14) in a bore (16), the plug (11) being received in a case (29) having a threaded port (28) adjacent the plug bore (16). A ferrule (17) and a threaded nut (25) seal the polymeric tube to the plug (11). The ferrule may be extended through the nut bore and be retained in the nut by a flange (32, fig. 2) at the outer end of the nut. The fitting may include further gripping means (64, 71, figures 6, 7) to resist axial pulling of the polymeric tube.
摘要:
The invention provides excretory/secretory antigens derived from parasitic nematode species which are capable of inducing protective immunity against infection by parasitic nematode species, and related antigenic molecules. The invention also provides nucleotide sequences encoding the antigens and related molecules of the invention, recombinant DNA molecules comprising the nucleotide sequences, and transformed hosts carrying the recombinant DNA molecules. The invention further provides antibodies against the antigens and related molecules, and antibody compositions comprising the antibodies, vaccines comprising the antigens and/or related molecules and methods of treating or preventing nematode infections using the antigens and related molecules, vaccines, antibodies and/or antibody compositions of the invention.
摘要:
La présente invention se rapporte à un biocapteur comprenant au moins une membrane lipidique, chaque membrane contenant au moins un canal ionique à porte. Les membranes sont constituées d'un réseau matriciel étroitement serré de molécules amphophiles auto-assemblées et le canal ionique à porte se caractérise par une conductance qui dépend d'un champ électrique appliqué à travers la membrane. Le biocapteur de la présente invention peut se composer de plusieurs membranes séparées contenant chacune au moins un canal ionique à porte. La conductance de chacune de ces membranes peut être mesurée indépendamment de la conductance des autres membranes.
摘要:
A process for the selective removal or chemical modification of minerals contained in carbonaceous materials, comprising treating with an aqueous solution of a compound selected from ammonium salts, polyhydroxy alcohols, organic acids, organic complexing agents and polysaccharides. The process may be used to increase coal recovery, improve coal quality and enhance coal ash fusion characteristics.
摘要:
The invention provides excretory/secretory antigens derived from parasitic nematode species which are capable of inducing protective immunity against infection by parasitic nematode species, and related antigenic molecules. The invention also provides nucleotide sequences encoding the antigens and related molecules of the invention, recombinant DNA molecules comprising the nucleotide sequences, and transformed hosts carrying the recombinant DNA molecules. The invention further provides antibodies against the antigens and related molecules, and antibody compositions comprising the antibodies, vaccines comprising the antigens and/or related molecules and methods of treating or preventing nematode infections using the antigens and related molecules, vaccines, antibodies and/or antibody compositions of the invention.
摘要:
57 A method for the production of low alcohol wine comprising separating a fruit juice into a high sugar fraction and a low sugar fraction, stripping volatile components, such as high-boiling point esters, from the fruit juice or from the high sugar fraction and adding them to the low sugar fraction, and fermenting the low sugar fraction. A preferred method of separating the fruit juice into high and low sugar fractions is by fractional crystallization. A low alcohol wine produced by the method is also claimed.