摘要:
A method of operating a membrane filtration module (5), the module (5) including one or more membranes (7) extending longitudinally between vertically spaced upper and lower headers (8, 9) into which the ends of the membranes (7) are potted. The membranes (7) have a permeable wall which is subjected to a filtration operation wherein feed containing contaminant matter is applied to one side of the membrane wall and filtrate is withdrawn from the other side of the membrane wall. At least one of the upper and/or lower headers (8, 9) has one or more openings (10) therein and the method including flowing the feed, at least in part, through the one or more openings (10) for application to the membrane wall. Apparatus for performing the method is also disclosed.
摘要:
A holder for holding a metal component part, which has at least one internal passage which is accessible by an opening in an external surface of the component part. The holder is equipped with a bearing element, which comprises a bearing surface, which is designed in such a way that it allows a seating of the component part on the bearing element, and in this case serves as a support for at least a part of the external surface of the component part which has the opening, and a flow passage, which leads through the bearing element, with at least one outlet opening located in the bearing surface. The outlet opening is located in the bearing surface in such a way that, with the component part seated, it lies opposite the opening of the internal passage. Furthermore, the outlet opening in shape and flow cross section is adapted to the opening of the internal passage.
摘要:
In internal coating processes there is often the problem that an outer surface of the component to be coated is also coated. The device according to the invention consists in the fact that the outer surface is protected by a robust outer envelope and a filling material between the component to be coated and the outer envelope.
摘要:
A rod pump control system includes a parameter estimator that determines from motor data parameters relating to operation of the rod pump and/or downhole dynamometer card without the need for external instrumentation, such as down hole sensors, echo meters, flow sensors, etc. In one embodiment, instantaneous motor current and voltage together with pump parameters are used in determining rod position and load. The rod position and load are used to control the operation of the rod pump to optimize the operation of the pump. Also disclosed in a pump stroke amplifier that is capable of increasing pump stroke without changing the overall pumping speed, or in the alternative, maintaining the well output with decreased overall pumping speed.
摘要:
The invention relates to a method for the nondestructive testing of a component, in which corrosion regions close to the surface, composed of oxidized carbides or sulfided base material close to the surface, are determined by means of an eddy current measurement. This allows the blades or vanes to be ground down and/or separated out in particular prior to a complex process of cleaning and coating the gas turbine blade or vane.
摘要:
A device and a method capable of being carried out therewith for, preferably, anisotropically etching a substrate (10), in particular, a patterned silicon body, with the assistance of a plasma (14), is proposed. In the process, the plasma (14) is produced by a plasma source (13) to which a high-frequency generator (17) is connected for applying a high-frequency power. Moreover, this high-frequency generator is in communication with a first means which periodically changes the high-frequency power applied to the plasma source (13). Besides, provision is preferably made for a second means which adapts the output impedance of the high-frequency generator (17) to the prevailing impedance of the plasma source (13) which changes as a function of the high-frequency power. The proposed anisotropic etching method is carried out in separate and alternating etching and polymerization steps, a higher high-frequency power of up to 5000 watts being, at least temporarily, applied to the plasma source (13) during the etching steps than during the deposition steps. The proposed device is also suitable for igniting a plasma (14) and for adjusting upward or pulsing a plasma power from a starting value to up to 5000 watts.
摘要:
A method for creating a magnetic resonance (MR) image with prospective motion correction with a recording of navigation signals and navigator reference signals for the determination of motion information is provided. During the determination of the motion information, the partial volumes of the navigator volume are not all treated equally. Different weightings are used.
摘要:
A method for establishing a magnetic resonance system actuation sequence is described. A first number of field distribution maps are acquired for slices of the measurement region, and a radiofrequency pulse train is established on the basis thereof for the magnetic resonance system actuation sequence. This acquisition of the first number of field distribution maps may be brought about on the basis of an acquisition scheme. A reduced number of field distribution representation maps are established on the basis of the acquired field distribution maps, which field distribution representation maps represent the first number of acquired field distribution maps in accordance with a predetermined optimization criterion, and the radiofrequency pulse train is established on the basis of the field distribution representation maps.
摘要:
Methods, kits and compositions are described that include a non-naturally occurring kallikrein inhibitor and an anti-thrombolytic agent, e.g., an anti-fibrinolytic agent, for preventing or reducing blood loss and/or ischemia, e.g., ischemia associated with perioperative blood loss and cerebral ischemia, the onset of systemic inflammatory response, and/or reperfusion injury, e.g., reperfusion injury associated with cerebral ischemia or a focal brain ischemia, e.g., in patients subjected to invasive surgical procedures, especially procedures requiring cardiopulmonary bypass.