APPARATUS FOR CONTINUOUS PURIFICATION OF LIQUIDS The apparatus for the continuous clarifying of liquids containing suspended solid substances comprises a flotation cell with a liquid head height of less than 1 meter, with a ratio between the liquid head and the cell diameter comprised between 0.25 and 0.05. The cell has a bottom axial inlet for liquid to be clarified, supersaturated with gas, so a...

An automatic structure analyzing/processing apparatus for surface structure of material includes a structure observing device (7) for observing structure of a surface of material to produce an electrical image signal thereof, a sample stage (4) disposed opposite to the observing means, an image processing device (8) for converting the image signal from the structure observing device to digital sig...

A process of producing a thermoplastic polyester series resin foamed material is disclosed, which comprises heating and further foaming a thermoplastic polyester resin foamed material having a crystallinity of not higher than 30% by bringing into contact with water or steam of at least 60 DEG C and then heating the foamed material by bringing into contact with a heating medium other than water of ...

The invention relates to a process for the preparation of polyorganosiloxane-containing emulsions having a mean particle size of less than 0.3 mu m, where, in a first step, A) a concentrate is prepared from polyorganosiloxane, water and polyorganosiloxane-soluble emulsifier, and, in a second step, B) the concentrate obtained in this way is diluted with water to the desired polyorganosiloxane co...

A mesh type vent for use in molds which is made from polyphenylene sulfide resin composition containing polyphenylene sulfide resin and at least one member selected from the group consisting of inorganic fibers, inorganic fillers and organic high molecular compounds.

Detection of variable nucleotide(s) is based on primer extension and incorporation of detectable nucleoside triphosphates. By selecting the detection step primers from the region immediately adjacent to the variable nucleotide, this variation can be de- tected after incorporation of as few as one nucleoside triphosphate. Labelle d nucleoside triphosphates matching the variable nu- cleotide are ad...

Improvements to the polymerase chain reaction (PCR), a process for in vitro enzymatic amplification of specific nucleic acid sequences, can be achieved by changing the way that PCR reagents are mixed and the enzymatic reaction is started and by the replacement of mineral oil, commonly used as a vapor barrier to minimize solvent evaporation, by a grease or wax. The use of such mixtures allows for t...

Disclosed are methods of reducing water penetration through civil engineering structures which comprise applying to the structures a waterproofing agent pretreatment composition including acrylic or vinyl acrylic latices and various freezing point depressing agents. Also disclosed are packages including these pretreatment compositions and methods for using these pretreatment compositions to waterp...

Control unit for the transmission of control data especially in the control/monitoring system of a building, said control unit being provided with a rotatable control knob (2) for the adjustment of the control data and with a scale around the control knob. The control unit has a set of push-buttons (4, 5) for the selection of the quantity controlled by the control knob and/or for the transmission ...

The present invention relates to 3 min -fluoro nucleoside analogues and their use in medical therapy, particularly for the treatment or prophylaxis of human immunodeficiency virus and hepatitis B virus infections, to methods for their preparation and to formulations containing them.

O.Z. 0050/41406 Bisglycosides I Gly-O-CHR2-(CH2)p-(XR1)n-(CH2)q-(CHR3)m-O-Gly I where X is C-R4 or N, R1 is C1-C30-alkyl, C2-C30-alkenyl, O-C1-C30 alkyl or O-C2-C30-alkenyl when X is C-R4, and is CO-C1-C30-alkyl or COC2-C30-alkenyl when X is N, R2 to R4 are each hydrogen, C1-C30-alkyl or C2-C30-alkenyl, n is from 1 to 3, m is 0 or 1, p and q are each from 0 to 2 and Gly is a mono- or disaccharide ...

2075927 9112023 PCTABS00006 Hybrid reagents comprising a first portion having an affinity for a cellular target and a second portion having an affinity for a bioactive molecule are described, said hybrid reagents being capable of selectively releasing the bioactive molecule in response to a change in pH. The hybrid reagents of the present invention can be used diagnostically or therapeutically.

Membrane device comprising a monoporous block made of sintered material whose ends have their porosity filled with a porous sintered material, characterised in that this porous sintered material comprises at least two types of grains, the grains of the first type, known as "skeleton grains" (5), having a diameter of between approximately 1 % and 20 % of the diameter of the pores of the said block,...

A spiral conveyor system utilizing an endless flat belt (12) is disclosed. The belt (12) travels in an endless path which includes a spiral portion. The belt is primarily driven in the spiral portion by a frictional engagement between the belt (12) and a rotating driving element (14). The frictional engagement results from a combination of a tension induced in the belt (12) by a secondary drive an...

The present invention pertains to a composition based on refractory oxides, such as sintered magnesia, chrome magnesia, sintered dolomite, chromium ore, and/or zirconium dioxide, for coating a lining of a metallurgical melting vessel.

A switch is mounted in a housing (1) of a high-intensity static magnetic field generator and the housing (1) includes a rotation shaft (10) supported on the housing, a coil mounted relative to rotation shaft (10), arms (80, 90) energized by coil (20), a rod (70) energized by the arms (80, 90) latching/snapping elements (91, 92) energized by the arms (80, 90), a rod (70) moved by the elements (91, ...

The transistor comprises an emitter (29), a base (27) and a collector (31) has at least one quantum well (32) in the base region. The width of the well is determined so that the energy difference between one of the quantum levels in the quantum well and the barrier layer (33) is smaller than kT/2, where k is Boltzmann constant and T is the absolute temperature. Since holes (28) are confined in the...

In prodn. of pearl pigments based on metal oxide-coated mica flakes, in which rutile TiO2 and SnO2 are ppted. from aq. metal salt solns. onto the mica flakes in aq. suspension, followed by washing, drying and firing the pigment, the novelty is that SnO2 pption is completed before addn. of the Ti salt soln..