摘要:
A membrane filtration module having a plurality of permeable, hollow membranes is disclosed. In use, a pressure differential is applied across the walls of the permeable, hollow membranes when immersed in a liquid suspension containing suspended solids. Some of the liquid suspension passes through the walls of the membranes to be drawn off as clarified liquid or permeate, and at least some of the solids are retained on or in the permeable, hollow membranes or otherwise as suspended solids within the liquid suspension. The module has a shell or similar structure that at least partially surrounds the membrane module and substantially effects retaining at least portion of fluid flowed into the membrane module.
摘要:
A method and apparatus for reducing the effect of integrity loss in a hollow fibre membrane module, said module including a plurality of hollow fibre membranes (5), at least one end of the fibre membranes (5) being supported in a pot (6), the method including the step of increasing flow resistance of the liquid through the lumen (8) of the fibre membrane (5) in the region of the pot (6).
摘要:
A method and apparatus for removing fouling materials from the surface of a plurality of porous membranes (9) arranged in a membrane module (4) by providing, from within the module, by means (10) other than gas passing through the pores of said membranes, gas bubbles in a uniform distribution relative to the porous membrane array such that the bubbles move past the surfaces of the membranes (9) to dislodge fouling materials therefrom. The membranes (9) are arranged in close proximity to one another and mounted to prevent excessive movement therebetween. The bubbles also produce vibration and rubbing together of the membranes to further assist removal of fouling materials.
摘要:
A method is used for laser welding a workpiece along a welding line. At least two laser beams, which are offset in relation to one another, are guided along the welding line by moving an optical deflector unit. The method may be used for welding closure pins and casting induced openings of gas turbine blades.
摘要:
The present invention relates to an air-gap-insulated exhaust manifold (1) of an internal combustion engine, in particular in a motor vehicle, having a collecting line (2) that extends in a longitudinal direction (3), an outlet opening (4) oriented in the longitudinal direction (3), multiple inlet openings (5) oriented across the longitudinal direction (3) and a flange (6) that extends in the longitudinal direction (3) and includes the inlet openings (5), wherein an inside pipe (11) is situated in an outside pipe (10), forming an air-gap insulation, and whereby a gas-carrying outside pipe section (13) is provided in the area of at least one of the inlet openings (5) and leads from the respective inlet opening (5) to an assigned inside pipe inlet (14) which is at a distance from the flange (6). The inside pipe (11) is attached to the outside pipe (10) only in an attachment area (15).
摘要:
When changing a dopant species in an implantation tool, typically a clean process is performed to reduce cross-contamination, which is considered a major issue in implant cycles applied in advanced CMOS processes. Especially, the employment of an implanter previously used for heavy ions may generate increased cross-contamination when subsequently used for boron or phosphorus implants at moderate energies. A clean implant process using xenon gas may effectively reduce this cross-contamination at shorter process times compared to a conventional argon clean step.
摘要:
A method and device for sterilizing containers in which a plasma treatment is executed through excitation of an electromagnetic oscillation so that the plasma is excited in a vacuum in the vicinity of the container regions to be sterilized. Between arrival and discharge, the container regions to be sterilized are moved closer to the oscillation-generating device in the chamber, with continuous movement of the container and/or of the oscillation-generating device for one or more predetermined time intervals in such a way that a plasma is excited in these regions inside and/or outside the container. The chamber is provided with a transport apparatus inside it, which produces an essentially rotating motion of the container during the transport from the arrival to the discharge in the chamber.
摘要:
The present invention relates to a device and method for measuring hemoglobin in a fluid sample. The device comprises a disposable electrochemical cell, such as a thin layer electrochemical cell, containing a reagent capable of being reduced by hemoglobin. A suitable fluid sample that may be analyzed according the present invention is whole blood. If the hemoglobin to be analyzed is present in red blood cells, a lysing agent may be added to the sample to release the hemoglobin prior to analysis.
摘要:
There are described water-soluble phthalocyanine dyes, in particular copper phthalocyanine and nickel phthalocyanine dyes, which have the formula (1) defined hereinafter and can be used for the dyeing and printing of hydroxy and/or carboxyamido-containing fiber material, such as cotton, wool and synthetic polyamide, by the techniques customary in the art for fiber-reactive dyes. ##STR1## in which Pc is a phthalocyanine radical, R.sup.1 and R.sup.2 are both hydrogen or alkyl, A is an aromatic carboxylic or heterocyclic radical, which may be substituted by substituents customary in dyes, or is an alkylene radical, which may be substituted by 1 or 2 hetero groups, X is a direct bond or a divalent organic binding link, such as an alkylene radical or an alkyleneamino group, Y is a direct bond or a group of the formula --CO--NH--alkylene-- or a methylamino or .beta.-cyanoethylamino group, Z is a fiber-reactive radical from the vinylsulfonyl series or is .beta.-hydroxyethylsulfonyl, m is the number 1 or 2, W is halogen, sulfo, phenylsulfonyl, alkylsulfonyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms or substituted or unsubstituted aryloxy or W is an amino group of the formula (2) or (3) ##STR2## in which R.sup.2, X, A, Y, Z and m have one of the above-mentioned meanings, and R.sup.3 is hydrogen or substituted or unsubstituted alkyl or cycloalkyl and R.sup.4 is hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted phenyl or cyano, or R.sup.3 and R.sup.4, together with the nitrogen atom, form a heterocyclic ring, a is a number from 1 to 4 and b is a number from zero to 3, and the sum of (a+b) is a number from 1 to 4, and M is a hydrogen atom or an alkali metal or another salt-forming metal.
摘要:
Water-soluble phthalocyanine dyestuffs, processes for their preparation and their use Phthalocyanine dyestuffs, in particular copper phthalocyanine and nickel phthalocyanine dyestuffs, which contain one or more groups of the formula define below ##STR1## or one or more carboxy groups, or both groups, and which furthermore can have one or more sulfo groups, customary sulfonamide groups and/or groups of the general formula defined below ##STR2## dye materials containing hydroxy and/or carboxamide groups, in particular fiber materials, such as, for example, cellulose fiber materials, wool and polyamide fibers, in deep-colored, fast, mainly green shades. In the formulae:R.sup.1 and R.sup.2 are both, independently of one another, hydrogen or a lower optionally substituted aliphatic radical, G is lower alkylene, or is phenylene, which can be substituted by lower alkyl, lower alkoxy, halogen, sulfo, carboxy and/or nitro, or the grouping --N(R.sup.1)--G--N(R.sup.2)-- forms the bivalent radical of a saturated heterocyclic ring, W is halogen, lower alkoxy, aryloxy, sulfo, phenylsulfonyl, lower alkylsulfonyl or an optionally substituted amino group, or is a radical of the formula --N(R.sup.3)--A--(Y--Z).sub.m, where R.sup.3, A, Y, Z and m have the meaning given below, A is an aromatic carbocyclic or aromatic heterocyclic radical or an alkylene radical, which can be interrupted by 1 or 2 hetero groups, or is an alkylenephenylene radical or the bivalent radical of a saturated heterocyclic ring containing two N atoms, Y, in the case where A is an aromatic radical, is a direct bond or a carbamoyl-alkylene group or a methylene, ethylene, methylamino or .beta.-cyanoethyl-amino group, or Y is lower alkylene, and in this case A necessarily is a direct bond and m is 2, Z is a fiber-reactive group of the vinylsulfone series, m is the number 1 or 2 and R.sup.3 is hydrogen or lower alkyl.