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60results about How to "Save money and material resources" patented technology

System and method for carrying out EPON (Ethemet-based passive optical network) performance test based on emulational ONU (optical network unit)

The invention discloses a system and a method for carrying out an EPON (Ethemet-based passive optical network) performance test based on an emulational ONU (optical network unit). The system comprises an Ethemet management system (EMS), an optical line terminal (OLT), an optical splitter, a plurality of real ONUs, a test instrument and an emulational ONU, wherein the OLT is connected with the EMS by adopting an internally-built or externally-built interface, and the OLT is sequentially connected with the optical splitter, the plurality of real ONUs and the test instrument end to end so as to form a ring-shaped test network. The method comprises the following steps: carrying out initialization on the system for carrying out the EPON performance test based on the emulational ONU; carrying out an emulation test by applying the system; and carrying out analysis on test results so as to obtain a test result. In case of carrying out the test on an EPON system by adopting the system and the method disclosed by the invention, the test complexity can be greatly reduced, and the test cycle can be reduced.
Owner:FENGHUO COMM SCI & TECH CO LTD

Frequency chosen of singular-spectrum analysis-based magnetic resonance sounding signal extraction method

The invention relates to a frequency chosen of singular-spectrum analysis-based magnetic resonance sounding signal extraction method. According to the method, a nuclear magnetic resonance sounding water detector is used to collect MRS signals of a Larmor frequency-known region; a broadband band-pass filter is adopted to suppress partial noises, and thereafter, the position of MRS signals corresponding to the Larmor frequency are found on a power spectrum based on power spectrum analysis; and frequency chosen of singular-spectrum analysis is performed, so that the MRS signals are extracted. Thefrequency chosen of singular-spectrum analysis includes the following four steps that: embedding is performed; RSVD (Regularized Singular Value Decomposition) is performed; and corresponding singularvalues are selected according to the amplitudes of the MRS signals so as to perform matrix reconstruction; and diagonal averaging is performed. With the method of the invention adopted, random noises, spike noises and power frequency harmonic interference can be effectively filtered from noise-containing MRS signals; and the effective extraction of the MRS signals under a complex strong noise interference condition can be realized. Compared with a traditional MRS signal de-noising method, the method has the advantages of high operation speed, high signal-to-noise ratio, high practicality andthe like.
Owner:JILIN UNIV

Buried optical cable fault ground locator and localization method

The invention belongs to the optical cable fault point localization technical field and relates to a buried optical cable fault ground locator and a localization method. The locator includes an ultra-narrow linewidth laser, a distributed feedback laser, an adjustable attenuator, an optical switch, an acousto-optic modulator, an erbium-doped optical fiber amplifier, a circulator, a wavelength division multiplexer, a Raman amplifier, an avalanche photodiode, an acquisition card, a driver, and a computer. With the buried optical cable fault ground locator and the localization method of the invention adopted, the fault location of a designated optical cable can be accurately located; financial and material resources required in finding the fault location of the optical cable can be effectivelyreduced; and the optical paths of an OTDR and the phiOTDR are fully integrated, the same devices can be adopted to simultaneously realize two functions on the basis of a fact that the devices apply different parameters under different modes.
Owner:昆仑杰信(北京)科技有限责任公司

Automatic wearing device for protective clothing and method thereof

ActiveCN111713949AQuick and effective to wearImprove sealingApparel holdersSpecial buildingHuman bodyHuman power
The invention discloses an automatic wearing device for protective clothing, the device comprises a disinfection bin for disinfecting and cleaning a user of the protective clothing; a wearing bin usedfor wearing the protective clothing of a protective clothing user; and a central processing unit which is in communication connection with each component and controls the operation of each component.The disinfection bin comprises a body temperature measuring instrument used for measuring the body temperature of the user of the protective clothing; a plurality of disinfectors; and a human body three-dimensional scanner which is in communication connection with the central processing unit and is used for collecting human body data of the protective clothing user and feeding back the human bodydata to the central processing unit, and the central processing unit controls all components in the wearing bin to work according to the human body data so that the protective clothing user can wearprotective clothing of the corresponding size. The device has the advantages that the disinfection bin, the wearing bin and the like are combined, so that the user can more conveniently and quickly wear the protective clothing, the unnecessary assistance of medical care manpower is reduced, time and task load are reduced, and the protective clothing can be effectively prevented from being pollutedby the external environment when being worn in a closed sterile environment.
Owner:SHANGHAI MARITIME UNIVERSITY

AIS signal simulation source

The invention discloses an AIS signal simulation source comprising a power supply, a combiner, a VHF antenna, an AIS signal source, at least one baseband processing unit and at least one radio frequency unit, wherein the AIS signal source is connected with the baseband processing unit, the baseband processing unit is connected with the radio frequency unit, the radio frequency unit is connected with the combiner, the combiner is connected with the VHF antenna, and the AIS signal source, the baseband processing unit and the radio frequency unit are connected with the power supply. The requirements of users on different messages sent by different types of devices in different scenarios can be met, the development time is saved, and financial and material resources are saved.
Owner:CHENGDUSCEON TECH

Flood-fighting special bag

The invention relates to a flood-fighting special bag, able to be used to fill and close up dike breach and piping place and also to be used as temporary reinforcing sub-dike for a weaker dike in flood seasons, and having good filling and closing effect and also able to be used as emergency lifeboat, and comprising a material storage bag in the middle to carry closing fillings and an air bag on two sides of the material storage bag to expand after charged, where the material storage bag and air bag are made of flexible waterproof material, the upper side of the material storage bag is provided with a feed inlet / outlet able to be opened and closed, and the outside of the storage bag is provided with a fixed rope; and the air bag is provided with an air inlet. As the flood falls, it only needs to discharge the air from the air bag and pour out the fillings, so as to be able to be recovered, convenient to recover and save manpower, material resources, and financial resources, especially able to race against the most valuable time for food fighting and relief providing.
Owner:JIANGSU TUCHUANG TECH DEV

Method for quantitatively determining fractured rock mass permeability anisotropy

The invention discloses a method for quantitatively determining fractured rock mass permeability anisotropy. The method comprises the following steps that a practical fractured rock mass is simulated, and similar materials which are different in inclination angle with the horizontal direction are prepared; the permeability rates of the similar materials with different inclination angles are measured, and a function relational expression of the permeability rates and the inclination angles is determined; derivation is conducted on the function relational expression, a derived function of the function relational expression is obtained, and the derived function shows the change rate of the permeability rates to the inclination angles; standardization processing is conducted on the derived function, a relational expression of unit permeability rate change quantity caused by unit inclination angle change to the inclination angles is obtained, and the relational expression is a quantitative expression of the permeability anisotropy of the practical fractured rock mass to be measured. According to the method for quantitatively determining the fractured rock mass permeability anisotropy, a mathematical analysis method is used for determining the change rate of the permeability rates of the fractured rock mass in different directions, standardization processing is conducted on the change rates of the permeability rates and the inclination angles, the unit permeability rate change quantities caused by unit inclination angle change at different inclination angles are obtained, and the permeability anisotropy of the fractured rock mass with larger permeability rate differences can be accurately expressed.
Owner:HOHAI UNIV

Modeling calculation and analysis method of stress field of composite submerged cable

InactiveCN102831290ARealize early detection and alarmMonitor and determine the cause of failureSpecial data processing applicationsFrequency spectrumSimulation
The invention relates to a modeling calculation and analysis method of a stress field of a composite submerged cable. The method comprises the steps of: based on a finite element method, building a stress field model of the composite submerged cable under the action of external force; and obtaining corresponding relation data of stress and strain of an optical fiber in the submerged cable and the actual distance of the submerged cable in the model under different loads and boundary conditions to obtain the frequency shift rule of the optical fiber under the action of the external force, thereby distinguishing the frequency shift of the submerged cable caused by the action of the external force and local heating, so as to achieve early detection alarming of a fault of the submerged cable and immediately prevent the fault from deteriorating. Compared with the strain data obtained by an experiment method, a lot of financial resources and material resources can be saved.
Owner:上海安馨信息科技有限公司

A disease prediction method based on tunnel environmental information

The invention relates to a disease prediction method based on tunnel environmental information, which mainly solves the technical problem that the traditional prediction mode mostly takes a single variable as a parameter and cannot meet the actual disease prediction effect. The technical proposal of the invention comprises the following steps: step 1, building a disease prediction model and training the model based on the historical data: firstly, collecting tunnel environment data, including tunnel environment information and tunnel basic information; Sample marking: the diseased segment is negative sample, and the normal segment is positive sample; Then the machine learning algorithm is selected to iterate and optimize the model until the accuracy of the model meets the requirements. 2,classify that tunnel disease identification level: from the beginning mileage to the end mileage of the tunnel, jud whether the segments of the tunnel position are disease or not one by one, outputting the different diseases by classification through threshold setting, and finally obtaining all the diseases of each grade in the tunnel.
Owner:SHANGHAI TONGYAN CIVIL ENGINEERING TECHNOLOGY CORP LTD

Subgrade construction method for aeolian sand section and structure and device thereof

The invention belongs to a subgrade construction method for an aeolian sand section and a structure and a device thereof; the method comprises the steps of construction preparation, filler sampling inspection, aeolian sand loading and transportation, aeolian sand laying and leveling, water replenishing for aeolian sand, aeolian sand compaction, testing detection of compacted aeolian sand, formation of sand fixing columns by grouting the interior of the upper part of a rolling-compacted molded aeolian sand filling layer by a rapid sand fixing column construction machine, slope stacking with sand bags, road bed acceptance, sand gravel loading and transportation, sand gravel layer laying, sand gravel watering compaction, testing detection of a sand gravel layer and compound slope protection.The device is the rapid sand fixing column construction machine, can form four sand fixing columns distributed at intervals. The method and the device can effectively build a road in the aeolian sandsection, provide the feasible subgrade structure and rapid reinforcement equipment, and have the advantages of simple and practical method, stable subgrade slope, low construction risk, low cost, construction period saving, no pollution, long service life of highways and good use effect.
Owner:CHINA CONSTR MUNICIPAL ENG +1

Novel magnetorheological elastomer normal force test platform

The invention relates to a novel magnetorheological elastomer normal force test platform which comprises a power part, a test part and a control part. The power part comprises a motor and a ball screwmechanism. The test part comprises a magnetic conductive base, a magnetic conductive cross beam, a magnetic core column, a coil, an upper magnetic conductive shell, a lower magnetic conductive column, a pressure sensor and an extrusion rod mechanism, the magnetic conductive base and the magnetic conductive cross beam are oppositely and fixedly arranged, the upper end of the upper magnetic conductive shell is fixedly connected with the magnetic conductive cross beam, the lower end of the lower magnetic conductive column is fixedly connected with the magnetic conductive base, and the upper magnetic conductive shell is connected with the lower magnetic conductive column through a magneto-rheological elastomer. Due to the fact that the magnetic conductive base and the magnetic conductive cross beam are relatively fixed, the gap distance (the gap is filled with the magnetorheological elastomer) between the upper magnetic conductive shell and the lower magnetic conductive column is also fixed, the distance between an upper magnetic pole and a lower magnetic pole of the magnetorheological elastomer is fixed along with compression of the magnetorheological elastomer, and the constancy ofthe magnetic field in the magnetorheological elastomer is guaranteed.
Owner:SHANGHAI INST OF TECH +2

Carbohydrate chip for quickly diagnosing tuberculosis, preparation method thereof and tuberculosis diagnostic kit adopting carbohydrate chip

InactiveCN102707053AIncreased antigen specificityStrong specificityMaterial analysisAntigenLipomannan
The invention relates to a carbohydrate chip for quickly diagnosing tuberculosis, which comprises a solid-phase carrier. The carbohydrate chip is characterized by further comprising a mycobacterium tuberculosis lipopolysaccharides antigen probe which is fixed on the solid-phase carrier through oximation reaction. The invention also relates to a preparation method of the carbohydrate chip and a tuberculosis diagnostic kit adopting the carbohydrate chip. The preparation method comprises the following steps: separating, extracting and purifying lipopolysaccharides in a mycobacterium tuberculosis cell wall; fixing LAM (lipoarabinomannan) and LM (lipomannan) probes in the solid-phase carrier, such as a nitrocellulose membrane or porous plate, and the like, by utilizing a method of oximation reaction, thereby obtaining the carbohydrate chip; and judging if the mycobacterium tuberculosis is infected, by bonding the carbohydrate chip with a corresponding antibody in blood serum and performing enzyme linked color-developing reaction. A cell wall lipopolysaccharides antigen with species specificity adopted by the carbohydrate chip only can be combined with a specific tuberculosis antibody, so that the detecting specificity and sensitivity of the tuberculosis are greatly increased.
Owner:SHANGHAI JIAO TONG UNIV

Thyroid cancer ultrasonic image automatic labeling method and system

The invention discloses a thyroid cancer ultrasonic image automatic labeling method and system. The method includes the following steps that: a cancer image data set to be processed is preprocessed, so that the ROI sub-image data set of each cancer image is extracted; a VGG16 deep learning network model is adopted to perform feature extraction on the ROI sub-image data set; a K-means++ algorithm is used to cluster extracted features; clustering results are compared with the reference clustering results of preset cancer-free images, so that the cancer feature clusters of the cancer images are obtained; and the obtained cancer feature clusters are correspondingly labeled on the original images of the cancer images. The method and system of the invention have the advantages of high work efficiency, high accuracy and low application cost. The method and system can assist in saving a large quantity of financial and material resources and can be widely used in the medical image data processing field.
Owner:SUN YAT SEN UNIV

Gas pipe network leakage detection method and system based on pressure parameter analysis

ActiveCN113685736ASave money and material resourcesCompliance with management system requirementsPipeline systemsSimulationFalse alarm
The invention relates to a gas pipe network leakage detection method and system based on pressure parameter analysis. The method comprises the steps of S1, building a field pipe section model, and setting detection points to obtain a normal point curve; S2, formulating a standard for judging leakage; and S3, performing leakage detection and alarm according to real-time operation data. According to the gas pipe network leakage detection method, the balance between the leakage alarm timeliness and the leakage-free false alarm rate of the model is comprehensively considered, leakage determination is carried out based on scientific quantitative calculation, financial resources and material resources for detecting leakage through physical instruments are omitted, the requirements of a management system adopted by a current actual gas company can be better met, and the processing space and the degree of freedom are high; and by setting an alarm manner corresponding to values of delta% and n, a user can know the current alarm level and possible error conditions thereof, and the user can quickly perform leakage processing.
Owner:上海观燃智能科技有限公司

Method for estimating heavy metal concentration in soil

The embodiment of the invention discloses a method for estimating heavy metal concentration in soil and particularly relates to the technical field of soil heavy metal detection. The specific steps are as follows: S1, a pH value at a soil sampling point, a cation exchange capacity, a content of organic carbon and altitude data of the sampling point are collected; S2, a mathematical model is established by the multiple regression analysis method, and a linear relationship between the heavy metal concentration and soil physicochemical properties is established; S3, the required parameters are input into the formula to obtain the estimated heavy metal concentration at the point; S4, the consistency between the predicted result and the measured value of the heavy metal in soil is checked. By synthesizing the physicochemical properties of the sampling point such as the soil pH, the cation exchange capacity and the organic matter content and the regional altitude as parameters, the correlativity between the heavy metal content and environmental factors is established; the heavy metal concentration around a survey region is predicted; the method is more scientific and effective; the reference is provided for the regional environmental pollution degree; and a scientific basis is provided for environmental control in the future.
Owner:JINAN UNIVERSITY

Electronic report auto-generating land-use planning management system and method

The present invention relates to an electronic report auto-generating land-use planning management system and method. The system comprises a statistical information module, a statistical bookmark module, a report template customization module and an electronic report auto-generation module. The method comprises: step 1, based on background data, implementing customization and combination of a statistic condition; step 2, making a statistic into a bookmark as required; step 3, customizing a report template by an embedded document editing control; and step 4, opening a selected report template, selecting a statistic time interval and a space range of a report, acquiring statistical data in a background database according to a statistic condition and a statistical result format information for reading a statistical bookmark record, inserting a statistical result into the selected report template, and auto-generating an electronic report. By electronic report auto-generation, the method provided by the present invention greatly improves the work efficiency and report material timeliness and scientifically assists decision-making.
Owner:南京市城市规划编制研究中心 +1

Number checking method and device

The invention discloses a number checking method and a device. The method comprises the following steps: the number checking device is used for storing a number information record of a first user, the name, the used number and the current number of the first user are stored in the number information record correspondingly; the number checking device is used for receiving the number tracking request of the current number of the first user inquired by a second user, and the number tracking request comprises the name and the used number of the first user; the number checking device inquires the current number of the first user according to the number tracking request and the name and the used number of the first user in the number information record, and the current number is sent to the second user. According to the number checking method and device, the material resources and financial resources wasted by informing the original contact persons one by one after the user changes the numbers can be reduced greatly.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD

Drinking mineral water quality detection device

The invention discloses a drinking mineral water quality detection device which comprises a conveyor belt I, an LED light source, a conveyor belt II, a slope, a detection tank, a camera, an electric door I, a controller, an electric door II and a movable barrier. The drinking mineral water quality detection device has the advantages that the drinking mineral water quality detection device can be applied to industrial production lines, drinking mineral water can be detected by the aid of hardware platforms such as vision sensors, images of sufficiently uniformly shaken water can be acquired bythe drinking mineral water quality detection device and can be analyzed and processed by the drinking mineral water quality detection device, obtained images of clean water and water mixed with impurities can be compared to one another, accordingly, the granularity of the impurities in the water can be obtained by means of analysis, and a conclusion whether the detected mineral water contains solid floating matters or not and whether standards are met or not further can be drawn; assembly line work can be implemented by the drinking mineral water quality detection device, the drinking mineralwater quality detection device is applicable to detecting whether daily drinking mineral water contains solid floating matters before being delivered or not, is economical and practical and is easy tooperate, financial resources and material resources can be saved, and the work efficiency can be effectively improved.
Owner:KUNMING UNIV OF SCI & TECH

Colloidal-single-crystal-self-assembly computer simulation method based on heat-treatment assistance and preparing method of colloidal single crystals

InactiveCN106521614AImprove self-assembly efficiencyShorten the timeFrom gel stateMicro nanoEvaporation
The invention provides a self-assembly-colloidal-crystal computer simulation method based on heat-treatment assistance and a preparing method of colloidal single crystals. According to the self-assembly-colloidal-crystal computer simulation method based on the heat-treatment assistance, a physical model for optimizing colloidal crystal technological parameters with the Monte Carlo algorithm is built, and technological parameters such as the optimal self-assembly temperature are simulated and predicted through the physical model; meanwhile, the glue evening method is combined, a plurality of other self-assembly parameters of micro-nano ball crystals are controlled and assembled, and large-area colloidal single crystals are obtained. A theoretical model under the condition that liquid evaporation of the colloidal single crystals is considered is built; based on the theoretical model, computer simulation is introduced, and the efficiency of the self-assembly colloidal crystals is greatly improved; the algorithm of the model is efficient and convenient and fast, quite-large computing resources are not required, the obtained result and the experimental result are highly identical, and the quite-good experiment instruction value and market application prospects are achieved. According to the computer simulation method, multiple codes are specifically adopted in the method; the method for preparing the colloidal crystals is suitable for assembling micro-nano balls with the large-range size, and can also be suitable for assembling different kinds of micro-nano balls.
Owner:TIANJIN POLYTECHNIC UNIV

Tire full-automatic code reading machine and code reading method thereof

The invention relates to a tire full-automatic code reading machine. A servo motor is movably connected to a fixed frame body, an output shaft of the servo motor is vertically downward and is connected with the middle of a horizontally-arranged mechanical arm through a speed reducer, one end of the mechanical arm is connected with a lifting rail, the included angle between the axis of the lifting rail and the bottom face of the mechanical arm is 30-90 degrees, the upper end of the lifting rail is driven through a stepping motor, and a vertically-arranged industrial code reading camera is arranged at the lower end of the lifting rail. The servo motor, the stepping motor and the camera are respectively connected with an external PLC. The industrial camera is adopted in the tire full-automatic code reading machine, the effect of multiple original industrial code reading cameras can be achieved, manual code reading is replaced, the cost is 1 / 3 of the cost with the original industrial code reading cameras adopted and is greatly lowered, meanwhile, the errors of the original manual code reading are avoided, and a new step is achieved in product management under the condition that users has less investment.
Owner:阎文

Method for rapidly representing activity of catalytic cracking catalyst

ActiveCN103575859AThe activity is convenient and fastAvoid relative activityPreparing sample for investigationActivity indexPotassium hydroxide
The invention relates to a method for rapidly representing the activity of a catalytic cracking catalyst. The method comprises the following steps: (1) sorting selected catalysts; (2) determining potassium hydroxide index values and micro-activity index values of selected catalyst samples, and drawing a standard curvilinear equation of relationship between the potassium hydroxide index values and the micro-activity index values of the samples; and (3) measuring the potassium hydroxide index values of to-be-measured catalyst samples, substituting a measured result into the standard curvilinear equation so as to obtain the micro-activity index values of the to-be-measured samples, and representing the activity of the catalytic cracking catalyst. The method for representing the activity of the catalytic cracking catalyst is simple and rapid to operate, is low in capital input quantity, is accurate and reliable in result, and has practical significance in evaluating the cracking activity of the cracking catalyst.
Owner:九江惠城环保科技有限公司

Composite submarine cable stress field modeling calculation analysis method

InactiveCN102831290BRealize early detection and alarmMonitor and determine the cause of failureSpecial data processing applicationsFrequency spectrumSimulation
The invention relates to a modeling calculation and analysis method of a stress field of a composite submerged cable. The method comprises the steps of: based on a finite element method, building a stress field model of the composite submerged cable under the action of external force; and obtaining corresponding relation data of stress and strain of an optical fiber in the submerged cable and the actual distance of the submerged cable in the model under different loads and boundary conditions to obtain the frequency shift rule of the optical fiber under the action of the external force, thereby distinguishing the frequency shift of the submerged cable caused by the action of the external force and local heating, so as to achieve early detection alarming of a fault of the submerged cable and immediately prevent the fault from deteriorating. Compared with the strain data obtained by an experiment method, a lot of financial resources and material resources can be saved.
Owner:上海安馨信息科技有限公司

Magnetic Resonance Sounding Signal Extraction Method Based on Frequency Selective Singular Spectrum Analysis

The invention relates to a frequency chosen of singular-spectrum analysis-based magnetic resonance sounding signal extraction method. According to the method, a nuclear magnetic resonance sounding water detector is used to collect MRS signals of a Larmor frequency-known region; a broadband band-pass filter is adopted to suppress partial noises, and thereafter, the position of MRS signals corresponding to the Larmor frequency are found on a power spectrum based on power spectrum analysis; and frequency chosen of singular-spectrum analysis is performed, so that the MRS signals are extracted. Thefrequency chosen of singular-spectrum analysis includes the following four steps that: embedding is performed; RSVD (Regularized Singular Value Decomposition) is performed; and corresponding singularvalues are selected according to the amplitudes of the MRS signals so as to perform matrix reconstruction; and diagonal averaging is performed. With the method of the invention adopted, random noises, spike noises and power frequency harmonic interference can be effectively filtered from noise-containing MRS signals; and the effective extraction of the MRS signals under a complex strong noise interference condition can be realized. Compared with a traditional MRS signal de-noising method, the method has the advantages of high operation speed, high signal-to-noise ratio, high practicality andthe like.
Owner:JILIN UNIV

Pigment granulation product relative hardness detecting instrument

The present invention relates to a hardness detecting device, especially to a paint granulation product relative hardness detecting device, provides a paint granulation product relative harness detecting device which quantizes the product hardness and can scientifically optimize the two indexes of scientifically optimizing the paint particle hardness and the dyeing force when the paint is reducted to power, the device comprises a testing bracket and a switch, one end of the constant-pressure and constant-current tube which is added with compressed air is arranged with a charging opening, the other end is arranged with an impact box, the upper side of the impact box is a pressure-discharging net, the lower side is a material collecting bag, the fluidity of the paint particle product obtained through experiment and the moldability quantizing index parameter value of the particle, the paint particle product is facilitated to represent excellent in the conveying of the system, the quantizing index of the granulation product is settled and the financial resource and physical resource are saved, an equilibrium point is confirmed between the dyeing force of dispersibility and the hardness in order to secure the cost optimum, after a plurality of adjustment a more satisfactory formula can be obtained and the product quantizing index can be provided to the client; and the production equipment technology consultation can be provided to the producing company.
Owner:陶毅

Material returning method and device

The invention provides a material returning method and device, and belongs to the technical field of information. The method comprises the steps of: when a returned material sent by a server is received, storing the returned material in a demilitarized zone; judging whether the returned material is a material to be returned or not in the demilitarized zone, wherein the material to be returned is areturned material, which is failed to be matched with a returned material before and confirmed as the security material; if the material is the material to be returned, sending a pulling message forpulling the material to be returned to a mixed island production domain; and obtaining the material to be returned according to the pulling message by the mixed island production domain. By means of the technical scheme in the invention, real-time and high-efficiency material returning can be realized; furthermore, due to returning of an encrypted material, the material returning security is ensured; and the financial and material costs are reduced.
Owner:CHINA CENTRAL TELEVISION

Control device for solving problem of foam stacking in process of aerobic biological treatment of wastewater

The invention provides a control device which can be used for solving the problem of stacking of plenty of foam in the aerobic biological process. The whole device comprises a force boosting electric stirrer and a group of stirring paddles, wherein the stirring paddles are 5-10cm away from the liquid level of sewage and wastewater in the device so as to be convenient for treating the stacked foam; the stirring paddles are controlled by adjusting the speed of the force boosting electric stirrer, adopt ABS (acrylonitrile butadiene styrene copolymers) resin and have strong impact resistance and good insulating properties; for the paddles in the water environment for a long term, ABS is not affected by water, inorganic salt, alkalis and alcohols and various acids and alkalis, so that the aerobic biological treatment experiment process in the device can not be affected; the stirring paddles are connected on the force boosting electric stirrer; the speeds of the stirring paddles are controlled by the stirrer, can be adjusted according to the degree of foam stacking in the device and can be manually adjusted; the stirring paddles are fixed on the force boosting electric stirrer by adopting a spiral mode, so that the stirring paddles are convenient to dismantle so as to wash suspended substances or viscous substances adhering to the stirring paddles for a long term.
Owner:INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI

Mortise and tenon structure anti-loosening nut assembly with tenon screw

The invention discloses a mortise and tenon structure anti-loosening nut assembly with a tenon screw. The mortise and tenon structure anti-loosening nut assembly is reasonable, rigorous and reliable in structure. The nut can be effectively prevented from loosening, and the problem of loosening of the bolt and the nut is directly and fundamentally solved through the nut anti-loosening structure. The assembly comprises a fastening nut, and two semicircular mortises, namely a semicircular mortise I and a semicircular mortise II, are formed in the lower part of the fastening nut; the upper portion of the double-mortise element is provided with two semicircular mortises which are the semicircular mortise III and the semicircular mortise IV respectively, and the plane, making contact with the double-face anti-skid gasket, of the lower portion of the double-mortise element is provided with concave-convex patterns with the anti-skid function. The assembly also comprises atenon screw, the head of the tenon screw is a cross groove, a threaded rod with threads is matched with a screw mortise formed by the semicircular mortise of the fastening nut and the semicircular mortise of the double-mortise element, and after the fastening nut is fastened, the tenon screw is screwed into the mortise to form a mortise and tenon structure; the upper surface and the lower surface of the double-face anti-skid gasket are provided with concave-convex patterns with an anti-skid function.
Owner:MAINTENANCE COMPANY OF STATE GRID XINJIANG ELECTRIC POWER COMPANY +1

Multi-group tonnage classification control system of hydraulic press

InactiveCN102328455AEasy to achieve compression moldingReduce processing costsPressesControl systemControl engineering
The invention belongs to the technical field of a hydraulic press, and relates to a multi-group tonnage classification control system of a hydraulic press. The system comprises multiple classification tonnage groups, an oil tank and a connection oil pipe; and a proportional overflow valve is also arranged between the oil tank and the classification tonnage groups, wherein one classification tonnage group is directly connected to the proportional overflow valve through the connection oil pipe, and an electromagnetic valve is also arranged between the other classification tonnage groups and the proportional overflow valve. The multi-group tonnage classification control system of the hydraulic press, provided by the invention, can randomly select different tonnage combinations for work according to different lengths and processes of the processed workpieces, greatly lowers the processing cost, saves financial and material resources to some degree, and realizes compression moulding of complicated workpieces easily.
Owner:TIANJIN TIANDUAN PRESS CO LTD

Anti-lateral force adjustment suspension strut assembly

ActiveCN109340300AAbility to resist lateral forcesImprove fatigue lifeSpringsLiquid based dampersCoil springEngineering
The invention discloses an anti-lateral force adjusting suspension strut assembly. The anti-lateral force adjusting suspension strut assembly comprises a piston rod which is arranged inside the working cylinder, an oil storage cylinder which is arranged outside the working cylinder, an upper connecting plate, a lower connecting plate, limiting ribs, a spring support, a supporting plate, an adjustable screw and a spring. One end of the upper connecting plate is connected with an automobile body and the other end of the upper connecting plate is connected with the piston rod. One end of the lower connecting plate is connected with a steering knuckle and the other end of the lower connecting plate is connected with the lower part of the oil storage cylinder. The limiting ribs are symmetrically fixed on both sides of the middle portion of the oil storage cylinder. The spring support is arranged on the outside of the oil storage cylinder in a sleeving mode. An angle is formed between the plane of the spring support and a vertical surface of the axis of the piston rod. The support plate is fixed at the lower portion of the oil storage cylinder and located below the spring support. The adjustable screw is connected between the spring support and the supporting plate. By changing the shape of the damper coil spring and adjusting the inclination of the adjustable spring support and thevertical surface of the central axis of a damper, the damper can generate a pre-bending force to counteract the bending force generated by the vehicle weight after loading.
Owner:LIAONING UNIVERSITY OF TECHNOLOGY

Steel wire mesh frame sandwich concrete load-bearing wall, building and construction method of building

The invention provides a steel wire mesh frame sandwich concrete load-bearing wall, a building and a construction method, and belongs to the technical field of construction. The load-bearing wall comprises a core plate and two layers of steel wire meshes correspondingly arranged on both sides of the core plate, and a plurality of rows of connecting steel wires penetrating through the core plate are arranged between the two layers of steel wire meshes; vertical edge steel members are correspondingly arranged on the left and right ends of the core plate, and horizontal edge steel members are correspondingly arranged on the lower bottom surface and the upper top surface of the core plate; the adjacent ends of the vertical edge steel members and the horizontal edge steel members are welded andfixed at joints to form a frame, and both ends of vertical steel wires are correspondingly welded to the corresponding horizontal edge steel members; and both ends of the horizontal steel wires are correspondingly welded to the corresponding vertical edge steel members. According to the steel wire mesh frame sandwich concrete load-bearing wall, the two steel wire meshes are connected through theconnecting steel wires penetrating through the core plate, the edge steel members are arranged around the core plate to enable a wall body to have good integrity and good seismic performance, the labor intensity is reduced, and the construction period is shortened.
Owner:河北羲杰发建筑工程有限公司
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