4271results about How to "Quality is easy to control" patented technology

A noise reduction device of the present invention comprises a control filter unit for generating a control sound signal to cancel out a noise, a control speaker for outputting a control sound according to the control sound signal from the control filter unit, an error microphone for detecting a residual sound by superimposing the noise upon the control sound output from the control speaker, and an obstacle detector for detecting an obstacle around the error microphone, wherein the control filter unit generates the control sound signal according to data from the error microphone and the obstacle detector.

The invention provides a fully-automatic screw locking machine for a radiator. The fully-automatic screw locking machine comprises a rack, as well as a radiating fin loading mechanism, a triode loading mechanism, a screw loading mechanism, a screw locking mechanism, a screw detection mechanism for detecting installation missing of screws, a forming mechanism, a forming and foot-cutting mechanism, an unloading mechanism and a multi-station rotary disc mechanism which are installed on the rack respectively, wherein the radiating fin loading mechanism, the triode loading mechanism, the screw locking mechanism, the screw detection mechanism, the forming and foot-cutting mechanism and the unloading mechanism are sequentially distributed at the periphery of the rotary disc of the multi-station rotary disc mechanism along the rotation direction of the rotary disc, and are orderly and respectively matched with corresponding station clamps on the rotary disc; and the screw loading mechanism is arranged at one side of the screw locking mechanism, and matched with the screw locking mechanism. The fully-automatic locking screw machine provided by the invention can be used for automatically sequencing, assembling, screw locking, forming and discharging after radiating fins are placed in a radiating fin vibration disc in batches, whole triodes are placed in a triode feeding slide way, and screws are placed in a screw vibration disc in batches.

A computer method and apparatus for adaptive model predictive control (MPC) of multivariable processes is disclosed. The adaptive MPC system can perform automatic implementation for a new MPC controller, and, for an existing MPC controller, it can perform automatic maintenance when necessary. The adaptive MPC system consists of three modules: an MPC control module, an online identification module and a control monitor module. In MPC implementation, the online identification module and the MPC control module work together and perform various steps in MPC implementation automatically and efficiently. When the MPC controller is online, the control monitor module continuously monitors the MPC performance and model quality. When control performance becomes poor and considerable model degradation is detected, monitor module will start the maintenance by activating the online identification module. The identification module will re-identify the model and replace the old model. For strongly nonlinear process units, multiple models are identified and used in control.

The invention provides an AV (audio/video) encoding and decoding device, comprising a decoding module, a playing module, a conversion control module and an encoding module. The decoding module is used for importing a media file and calling a corresponding decoder to decode the media file, and the playing module is used for playing decoded AV data. The conversion control module is used for carrying out relevant processing on the decoded AV data, including the processing of scaling and effect adding on video resolution ratio according to encoding parameters, the processing of frame repeating and losing according to the frame rate and the time stamp, the processing of sampling rate conversion on audio data, the processing of discarding or silencing data filling on the audio data according to the data volume and the time stamp, and the processing of connecting a plurality of media files into one. The encoding module is used for calling a corresponding encoder and a media file synthesizer to generate a multimedia file in the specified format and with relevant parameters. The invention lowers the dependence of a user system environment, and leads software to be controllable in quality and have strong maintainability.

In a method for determining a gradient-limited setpoint torque from a requested setpoint drive torque and a controller setpoint torque of a closed-loop speed control, the gradient of an unlimited cumulative setpoint torque, which is a function of the requested setpoint drive torque and the controller setpoint torque of the closed-loop speed control, is limited in a region of the zero crossing of the gradient-limited setpoint torque by a rate-of-change limitation to a maximally permitted or a minimally permitted value. The maximally permitted or the minimally permitted value of the rate-of-change limitation is a function of the controller setpoint torque of the closed-loop speed control.

The invention discloses an MMC (modular multiple converter) type multi-port power electronic transformer applied to an alternating current/direct current hybrid power distribution network. The multi-port power electronic transformer comprises an input level, a middle level and an output level, and are equipped with four kinds of universal interfaces: a high-voltage alternating current interface, a high-voltage direct current interface, a low-voltage alternating current interface and a low-voltage direct current interface; the input level refers to the MMC; the middle level refers to an isolating dual active full-bridge DC/DC converter; and the output level refers to a three-phase four-wire-system full-bridge inverter. Except the basic functions of voltage transformation, isolation, energy transfer and the like as a common transformer, the transformer provided by the invention can realize access of voltages of various forms with the multiple working modes, can perform functions of power flow control, electric quality adjustment and the like; and therefore, an intelligent power distribution network interface with higher applicability is configured.

The present invention discloses II kinds of andrographolide sulfonated derivatives with the actions of resisting bacteria, relieving inflammation and reducing fever and medicine composition containing them. They can be used for preparing freeze-dried powder, injection or oral preparation, and can be used for curing the diseases of pneumonia, bronchitis, tonsillitis and bacillary dysentery, etc.

The present invention relates to a medicine preparation with raw material comprising gen-seng, RADIX OPHIOPOGONIS and schizan drin and relates to the methods of preparing and quality control of the invention as well as relates to the quality control method of the raw material comprising gen-seng, radix ophiopogonis and schizan drin. The present invention comprises saponins content of gen-seng, amylase content of gen-seng, saponins content of radix ophiopogonis and neolignan content of schizan drin. Each unit dosage of preparation comprises Rg1 and Re for 0.08 mg-12 mg, polysaccharide of gen-seng for 1mg-460mg, general saponins for 5 mg-800 mg and Schisandrin for 0.036mg-6mg. a medicine functioning as cooperation can be or can not be added in the present invention which can be any acceptable medicine preparation type comprising oral taking solid preparation, oral taking semi-solid preparation, oral taking liquid preparation and injection. The present invention also provides the quality control method of gen-seng, RADIX OPHIOPOGONIS and schizan drin as well as the quality control method of the present invention.

The invention discloses sulphoaluminate maritime work cement and a preparation method thereof. The sulphoaluminate maritime work cement comprises the following main raw materials in parts by weight: 50-80 parts of cement clinker, 8.0-20 parts of anhydrite, 0-30 parts of limestone, 0-30 parts of slag, 0.1-0.5 part of water reducing agent, 0.001-0.005 part of air entraining agent, 0.1-0.5 part of retarder and 2-5 parts of silicon powder. The preparation method comprises the following steps of: respectively smashing, grinding and homogenizing the sulphoaluminate cement clinker, the anhydrite, the limestone and the slag; then, burdening at a ratio, and evenly mixing; adding the water reducing agent, the air entraining agent, the retarder and the silicon powder; and mixing and homogenizing to obtain the product. The concrete mixed by the sulphoaluminate maritime work cement has the advantages of small bleeding rate and high slurry viscidity. The slurry has strong covering and supporting action on aggregate. The concrete keeps good homogeneity and has the advantages of hard and quick early strength, continuously-increased later strength, good slurry structure compactness and high volume stability and is convenient to use and operate for constructing.

The invention relates to the technical field of medicament delivery by a carrier, in particular to a lung targeting medicament carried proliposome used for injection and an application method thereof. Solid dispersion technology is adopted to obtain solution A by dissolving active medicament, phospholipid liposome, cholesterol liposome, surface active agent and acid type carrier in absolute ethyl alcohol or the mixed solvent of absolute ethyl alcohol and absolute ether; active carbon which is used for injection and has the volume being 0.1-1% of the volume of the solution A is added into the solution A; stirring, standing and filtering of the solution by a millipore filter are carried; therefore, aseptic solution B free of pyrogen is obtained; aseptic additives are added into the solution B under an aseptic condition; organic solvent is removed; and solid granular medicament carried proliposome or powdered medicament carried proliposome are obtained. The invention has the advantages that the preparation process is simple; the cost is low; the quality is controllable; the stability is good; and the invention is suitable for industrial production. The medicament carried proliposome prepared by effervescency dispersion technology has small and uniform particle diameter, the electric charge ranges from -10mv to -30mv, the proliposome can deliver over 90% medicament to a lung, and remarkable lung targeting effect is achieved, and thus being the best preparation delivering medicament by a carrier for treating lung diseases.

The invention discloses an intelligent assembly testing production line of a hydraulic plunger pump. The intelligent assembly testing production line of the hydraulic plunger pump is characterized by comprising a branch line assembly line and a main line assembly line, wherein the branch line assembly line comprises a branch line conveyer line and assembly tables which are orderly arranged on the branch line conveyer line, and the main line assembly line comprises a main line conveyer line and assembly tables which are orderly arranged on the main line conveyer line. Compared with the prior art, the intelligent assembly testing production line of the hydraulic plunger pump has the following advantages and effects that the structure design is more reasonable; automatic transportation of a workpiece is achieved; automatic detection and automatic assembly are achieved; a computer is adopted to measure and control; the systematization and the datamation of the assembly lines are achieved; the data of an accepted product and an rejected product can be traced; the production efficiency is improved; the labor intensity is reduced; the labor cost is reduced; the production efficiency is improved, and assembly and production of 2-3 similar standardized products can be achieved.

The present invention provides a freeze-dried medicine composition containing methylprednisolone sodium succinate and its preparation method. Said medicine composition includes 1-3000 mg of methylprednisolone sodium succinate as main component and auxiliary component including 1-1000 mg of sodium hydrogen carbonate or other alkaline medicinal auxiliary material 1-500 mg of lactose or other stabilizing agent. 1-50 mg of sodium dihydrogen phosphate or acid component of other pH buffering agent, 1-500 mg of disodium hydrogen phosphate or alkaline component of other pH buffering agent and 1-50 ml of injection water.

An extract of mulberry twigs is dislcosed, which can be used to prepare the food or the medicine to cure hyperuricemia and gout diseases. The said extract is prepared from mulberry twigs through extracting in solvent (aqueous solution of alcohol, chloroform, acetone, etc) at 10-100 deg.C more than one time, mergint the liquid extracts, recovering solvent, regulating pH value to 7.5-9.5, centrifugal separation to obtain supernatant, regulating pH value to 4-6, deposition, water washing wand drying. Several other approaches for purifying it are also disclosed.

The invention provides an epigallo-catechin gallate (EGCG) with high purity and a preparation method thereof. The EGCG content is 98.0 percent to 99.9 percent. The preparation method mainly comprisesthe working procedures of extracting, separating by a chromatography and crystallizing. The invention has favorable reproducibility of preparation process, high acquired EGCG content, low cost and stable and controllable quality and is suitable for industrialized production.

An oxiracetam injection is prepared from oxiracetam, gluclose (or sodium chloride) for injection and water for injection through proportioning, dissolving the glucose or sodium chloride for injection in the water for injection, adding activated carbon, heating, holding the temp. filtering, adding oxiracetam to the filtrate, stirring for dissolving, adding the water for injection, regulating pH value, fine filtering, bottling and sterilizing at 105-126.5 deg.C.

PCT No. PCT/DE96/02160 Sec. 371 Date Aug. 7, 1998 Sec. 102(e) Date Aug. 7, 1998 PCT Filed Nov. 13, 1996 PCT Pub. No. WO97/28998 PCT Pub. Date Aug. 14, 1997The valve has a seat valve with a hollow-conical valve seat and a closing member in the form of a spherical layer on a longitudinally drilled tappet. An inflow bore communicating with a pressure medium inlet discharges centrally into the valve seat. The largely pressure-equalized tappet is engaged by a magnet armature acting on the seat valve in a closing manner and by a restoring spring acting in the opening direction. The valve embodied in principle as a switching valve is controllable into stable intermediate positions on the basis of the following provisions: the cone angle of the valve seat is at most 90 DEG ; the force at the closing member, originating in the restoring spring, is adapted such that it has a course that decreases monotonously with an increasing valve opening stroke (h); the magnet circuit of the valve is embodied such that the magnetic force (FM) exerted on the magnet armature and transmitted to the closing member is variable in infinitely graduated fashion and has a course that decreases monotonously with increasing valve opening stroke (h), the negative slope of which course is less quantitatively than that of the course of spring force.

The invention discloses a knowledge base-based three-dimensional X-ray computed tomography (CT) detection system. The system comprises a data acquisition module, a slice reconstruction module, an image segmentation module, an image registration module, a defect detection module and a knowledge base management module, wherein the data acquisition module is used for acquiring CT projection data; the slice reconstruction module is used for reconstructing a two-dimensional slice according to the acquired CT projection data and recovering a slice CT image; the image segmentation module is used for segmenting the CT image information of an important part of the chip for the slice CT image; the image registration module is used for performing registration on the CT image to be detected and the standard CT image and finding out the correspondence between the two to realize comparability of the corresponding parts; the defect detection module is used for extracting CT image characteristic of a chip to be detected, comparing with corresponding characteristic of the standard CT image of the chip in a knowledge base and judging whether the chip to be detected is defective and judging the type of the defect. The system and the method are accurate in defect positioning and high in quality detection accuracy.