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4278results about How to "Quality is easy to control" patented technology

Noise reduction device

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.
Owner:PANASONIC CORP

Fully-automatic screw locking machine for radiator

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.
Owner:FOSHAN ZHONGGEWEI ELECTRONICS

Computer method and apparatus for adaptive model predictive control

InactiveUS20070225835A1Automatically efficiently performLow costAdaptive controlControl engineeringModel quality
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.
Owner:ZHU YUCAI

Car heat management system and car

A car heat management system comprises a battery circulating loop, an air conditioner refrigeration loop and a heat management controller, the battery circulating loop comprises a first battery pipeline, a power battery, a battery heat radiator and a heat exchange assembly, and the power battery, the battery heat radiator and the heat exchange assembly are connected to the first battery pipeline. The heat exchange assembly is used for carrying out heat exchange between the battery circulating loop and an external loop. The air conditioner refrigeration loop comprises a first refrigeration pipeline, a second refrigeration pipeline, a fan, a compressor, a condenser and an evaporator, and the compressor, the condenser and the evaporator are connected to the first refrigeration pipeline. The second refrigeration pipeline is connected with the heat exchange assembly, the two ends of the second refrigeration pipeline are connected to the positions, at the two ends of the evaporator, of the first refrigeration pipeline, and the condenser and the battery heat radiator are arranged on the air outlet side of the fan. The heat management controller is used for selectively starting the fan or the compressor to cool the power battery according to the cooling need of the power battery and the environment temperature. The car heat management system is correlated and integrated with a car air conditioning system, the heat load of the air conditioning system can be balanced, and the energy saving effect is good. The invention further relates to a car.
Owner:NINGBO GEELY AUTOMOBILE RES & DEV CO LTD

AV (audio/video) encoding and decoding device and method

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.
Owner:WONDERSHARE TECH CO LTD

Method and device for determining a gradient-limited cumulative setpoint torque from a setpoint torque of a closed-loop speed control

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.
Owner:ROBERT BOSCH GMBH

MMC (modular multiple converter) type multi-port power electronic transformer applied to alternating current/direct current hybrid power distribution network

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.
Owner:SOUTHEAST UNIV

Single crystal silicon texture-making additive and single crystal silicon texture-making technology

The invention relates to a single crystal silicon texture-making additive and a single crystal silicon texture-making technology. The single crystal silicon texture-making additive consists of a wetting agent and a defoaming agent. The additive is characterized in that the wetting agent is a nonionic surfactant. The single crystal silicon texture-making technology comprises the following steps: heating deionized water to 70-80 DEG C, adding sodium hydroxide or potassium hydroxide to obtain a single crystal silicon texture-making corrosive liquid, wherein the mass percentage of sodium hydroxide or potassium hydroxide is 1%-2%; adding the single crystal silicon texture-making additive in the single crystal silicon texture-making corrosive liquid to obtain a mixed solution, wherein the volume percentage of the additive is 0.3%-2%; and placing a precleaned raw silicon chip in the mixed solution for 600-1200s for texture-making. By adopting the additive and technology in the invention, the texture-making quality can be greatly increased, the cost is greatly reduced, the technological operation can be easier and the automatic solution preparation can be realized.
Owner:百力达太阳能股份有限公司

Sulfonated derivative of andrographolide and combination of medication

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.
Owner:JIANGZI QINGFENG PHARMACEUTICALS INC

Caterpillar vending machine and automatic vending method

The invention provides a caterpillar vending machine. The caterpillar vending machine comprises a goods replenishing unit, m transshipment units, n container units, a detection control unit, a cloud side management platform and a payment system; the goods replenishing unit, the transshipment units and the container units are connected in sequence, and the integrated caterpillar vending machine isformed, wherein m and n are both natural numbers except 0, when n=1, m=1, and when n>1, m=n+1; regarding the m transshipment units and the n container units, when n>1 and m=n+1, the transshipment units and the container units are connected in an alternated and arranged mode, and the last unit is the transshipment unit; when n=1 and m=1, the transshipment units and the container units are of an integrated structure. The caterpillar vending machine solves the problem of a traditional vending machine that manual work is relied on to replenish goods, goods replenishing is troublesome, time and labor are wasted, and the adaptability of vended commodities are poor.
Owner:HUNAN SCIENTOP AUTOMATIC EQUIP SHARES +1

Slow-releasing preparation containing metformin hydrochloride and glipizide and its preparation method

The invention discloses a diabecron and glipizide -containing slow-release agent and the method for preparing the same. The glipizide micro-pill takes blank micro-pill as carrier, and combines glipizide and other medical findings with it. The diabecron-containing slow-release micro-pill comprises diabetosan pill, slow-release coating membrane material or other medical findings. The method for preparing diabecron-containing slow-release micro-pill takes extrusion rolling method or blank micro-pill loading method. The product is characterized by safety, high efficient, low toxicity and convenient usage. It can be used to treat non-insulin-dependent diabetes mellitus.
Owner:QIQIHAR MEDICAL UNIVERSITY

Assembly channel steel punching beam column joint connecting device capable of achieving function recovery

InactiveCN106869325AAvoid complex stress fieldsReduce construction difficultyFloorsFloor slabPunching
The invention relates to an assembly channel steel punching beam column joint connecting device capable of achieving function recovery and belongs to the field of structural engineering. The assembly channel steel punching beam column joint connecting device capable of achieving function recovery is composed of a square steel pipe column with a cantilever beam section, a channel steel punching beam section and a connecting device of the cantilever beam section and the channel punch beam section. All welding parts of the joint connection device are all finished in a factory, so that precision and quality of welds are easier to control. Construction speed is greatly increased and construction quality is greatly improved, and a spatial structure of the channel punch beam section of the channel is conducive to pipeline penetration; the channel steel punching beam and a floor can be assembled and molded in the factory to form modular assembly units. Then all the modular assembly unit and the square steel pipe column with the cantilever beam section achieve assembly connection through the channel steel punching beam. Joints of the connection device can be used for both of beam end reinforcing and cover plate connection weakening. A multi-energy dissipation mechanism can be realized, a plastic hinge is transferred to a cover plate and a connecting plate. The function of structures can be recovered only by replacing the connecting plate after an earthquake.
Owner:BEIJING UNIV OF TECH

Prescription and preparation method of rejoicing powder having new dosage form

The invention relates to a prescription and a preparation method of rejoicing powder having a new dosage form and used for preventing or treating the senile dementia, and belongs to the biological medicine field. The rejoicing powder having a new dosage form is based on rejoicing powder having an ancient classic prescription and treats Radix Polygalae, Acorus gramineus and the like as primary medicines, the primary medicines are pretreated, partial or all medicines are extracted with water or an organic solvent in necessity to obtain effective components, the primary medicines or the effective components are mixed with proper medicinal auxiliary materials, and the rejoicing powder having the new dosage form is prepared through a certain preparation technology. The traditional prescription and the traditional technology for preparing the powder through simply crushing all medicines are changed in the invention, a new method and a new technology are applied against modern clinic medicine use characteristics to prepare the novel powder, and technological products have the characteristics of safety, effectiveness, controllable quality, convenient taking and the like of modern medicines, have the advantages of high biological utilization degrees of the effective components, fast effectiveness, substantial improvement of the product quality, and effective guarantee of the basic efficacies comprising qi benefiting, heart nourishing, nerve calming and tranquilizing, and have unique clinic application values in the prevention and the treatment of the senile dementia.
Owner:王登之

Pharmaceutical formulations with the raw material containing panax, ophiopogon root and schisandra fruit, processes for their preparation, the raw material and the quality control method for the prepa

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.
Owner:天津市轩宏医药技术有限公司 +1

Sulphoaluminate maritime work cement and preparation method thereof

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.
Owner:广西云燕特种水泥建材有限公司

Lung-targeted medicine carrying precursor liposome for injection and method of use thereof

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.
Owner:CHONGQING MEDICAL UNIVERSITY +1

Wind farm and method for controlling a wind farm

A wind farm includes a plurality of wind energy installations, a transfer point at which electrical energy produced by the wind energy installations is transferred to a public electricity grid system and for which nominal values are preset, and a measurement sensor configured to measure electrical actual values at the transfer point. The wind farm also includes a master regulator associated with an upper control level and configured to use upper nominal values and upper actual values at the upper control level to determine a preset for a lower control level, and a plurality of submaster regulators associated with the lower control level and configured to use the preset as a lower nominal value and, on the basis of the lower nominal value and a lower actual value, determine presets for the wind energy installations. A high level of control accuracy can thus be achieved even in large wind farms.
Owner:SIEMENS GAMESA RENEWABLE ENERGY SERVICE GMBH

Fungal pharmaceutical mycoplasm with blood sugar lowering efficacy and preparation method thereof

The invention belongs to the field of biofermentation engineering. A pharmaceutical medium and a fungal strain which have blood sugar lowering efficacy are used as bidirectional fermentation raw materials, wherein the pharmaceutical medium is mainly composed of the following raw materials: cornel, gynostemma, momordica grosvenori, winged euony twigs, balsam pear and polyrhachis vicina; the fungalstrain is composed of the following strains: inonotus obliquus, cordyceps, phellinus igniarius, polystictus versicolor, and grifola frondosa; and bi-directional multi-fungi fermentation is carried out between multiple edible and pharmaceutical fungi and Chinese herbal medicines by a bidirectional fermentation process, thus organisms in two kingdoms or three kingdoms are organically combined to obtain an entirely new blood-sugar-lowering pharmaceutical mycoplasm product. The obtained product can generate 1+1>2 physiological function efficiency for hypoimmunity, has the actions of obviously lowering blood sugar but not increasing insulin concentration, has significant positive effects on helping treating and controlling diabetic complications, and can be used as an oral medicament for preventing and treating diabetes or a health-care product for adjusting blood sugar.
Owner:DALIAN BAIXIANGJU BIOLOGICAL TECH

Intelligent assembly testing production line of hydraulic plunger pump

ActiveCN102922282ARealize automatic cycle transportationImprove work efficiencyAssembly machinesAssembly lineManufacturing line
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.
Owner:HANGZHOU GAOPIN AUTOMATION EQUIP

Methylprednisolone sodium succinate lyophilized composition and its preparing method

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.
Owner:国药集团容生制药有限公司

Externally laid masonry composite heat-insulating sintered building block exterior wall heat insulating system

The invention discloses an externally laid masonry composite heat-insulating sintered building block exterior wall heat insulating system, and relates to the technical field of building wall heat insulating and energy saving technology. The system comprises an exterior wall main body structure, a ring beam gutter, a floor gutter, a heat insulating material, I-type main building blocks, II-type main building blocks and the like, wherein the external laid masonry composite heat insulating sintered building blocks are laid and built outside a building exterior wall structure part; the heat insulating material is placed in the sintered building blocks; and an air space is reserved in the building blocks and outside the heat insulating material, and a protective layer is arranged on the outer side. The externally laid masonry composite heat-insulating sintered building blocks consist of main building blocks, corner matching blocks and hole matching blocks, wherein the main building blocks are divided into the I-type main building blocks and II-type main building blocks in category; and the corner matching blocks are divided into external corner matching blocks and internal corner matching blocks. The system has the advantages of easiness, convenience and practicability in building type construction, high construction speed, excellent wall integrity, superior wind resistance to the conventional sandwich heat insulation, factory production of materials and capability of reducing a complex operation process with high probability of causing the quality problem on site.
Owner:SHENYANG JIANZHU UNIVERSITY

Greenhouse environment intelligent control method based on global variable prediction model

The invention belongs to the technical field of facility agriculture environment control, and environment factors such as temperature, humidity, illumination intensity, CO2 concentration and the like in a greenhouse can be intelligently controlled. According to the greenhouse environment intelligent control method, a concept of a global variable is set, internal and external environment parameters in the greenhouse, current operating states of all controllers and local weather forecast for the next eight hours are used as all variables of a system, so as to be called global variables; and on this basis, a greenhouse environment prediction model based on the global variables is provided, and a BP (Back Propagation) artificial neural network is adopted to establish the model. By utilizing the model and combining fuzzy control, the greenhouse environment control method based on the global variables is invented. The greenhouse environment control method comprises the following steps that all of the global variables are used as input values, internal environment states of the greenhouse are predicted, and advanced adjustment is performed by the controllers in accordance with prediction results. By using the greenhouse environment intelligent control method, the problems of response lag, passive adjustment, inconsistent adjustment of the controllers and the like of traditional greenhouse environment control are solved, lag and oscillation in a response process are reduced, and the quality control of the greenhouse is improved.
Owner:HEBEI AGRICULTURAL UNIV.

Extract of mulberry twig and its extracting process and novel usage

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.
Owner:NANJING UNIV +1

External plaster for treating baby heat cough and preparing method

InactiveCN1586552AHave antitussiveNo toxic performanceAnthropod material medical ingredientsAerosol deliveryMedicineForsythia
The external plaster for treating baby's heat cough is developed based on the pathological features and the pathological cause of baby's heat cough. It is prepared with 17 kinds of Chinese medicinal materials including forsythia, sweet wormwood herb, skullcap root, bitter orange, etc. and through decoction, concentration, crushing, mixing and other steps. The external plaster for treating baby's heat cough has the functions of dispelling wind, clearing away heat, promoting lung-Qi flow, eliminating phlegm, etc. and is used mainly for treating baby's heat cough caused by different reasons. The medicine has convenient use and obvious effect, and the preparation process is suitable for industrial production.
Owner:左耀武

Epigallo-catechin gallate (EGCG) with high purity and preparation method thereof

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.
Owner:JIANGSU TIANSHENG PHARMA

Preparing method of oxiracetam injection and products thereof

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.
Owner:诸葛华明 +1

Electromagnetically actuated valve for hydraulic motor vehicle brake systems

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.
Owner:ROBERT BOSCH GMBH

Knowledge base-based three-dimensional X-ray computed tomography (CT) detection system and method

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.
Owner:SOUTH CHINA UNIV OF TECH

Method and system for evaluating quality in process of manufacturing cigarette

The invention discloses a method and system for evaluating quality in the process of manufacturing batch cigarette products. The method and system are characterized in that on the basis of evaluating the process quality of certain procedure single quality characteristic value, process performance indexes of a multivariable procedure are calculated by a principal component analysis method to obtain the weights of all principal components according to the respective characteristics of the procedures of shredding, wrapping, molding and the like, and the process performance indexes of the procedure are acquired through arithmetic weighted average, so that the quality in the process of manufacturing the cigarette is evaluated. Compared with other evaluation methods, the evaluation method disclosed by the invention has the advantages that: the selection of evaluation indexes more conforms to actual production demands, and the actual application range is wider; the establishment of evaluation standards fully refers to the conventional research results and is more scientific and objective; the quality control conditions of all production procedures of the cigarette can be better known through the evaluation; and more adequate data support is provided for continuously improving the quality in the process of manufacturing the cigarette and the final quality.
Owner:CHINA TOBACCO HEBEI INDUSTRIAL CO LTD

Aqueous acrylic acid modified epoxy ester emulsion and its preparation method

The invention relates to a preparation method of an aqueous acrylic acid modified epoxy ester emulsion. The method comprises the following steps: 1, preparing an acrylic resin A containing an aliphatic acid component; 2, preparing an epoxy ester resin B having a low acid value, wherein the acid value of the epoxy ester resin B is 5-10mgKOH / G; and 3, carrying out an esterifying reaction of the acrylic resin A and the epoxy ester resin B with the solid weight ratio of the acrylic resin A to the epoxy ester resin B being 1:3-1:1, neutralizing by amine or ammonia after the acid value is qualified, and diluting by water to obtain the aqueous acrylic acid modified epoxy ester emulsion having a solid content of 35-45wt% and an acid value of 20-50mgKOH / g. According to the invention, the preparation method is simple, and the aqueous acrylic acid modified epoxy ester emulsion has a very good hydrolysis resistance and a very good storage stability; and the dryness and the water resistance of the film of emulsion are improved; and the glossiness of the film is obviously improved.
Owner:上海华谊涂料有限公司
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