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56results about How to "Good suppression effect" patented technology

Six-degree-of-freedom quasi-zero-rigidity vibration isolation system based on Stewart platform

The invention provides a six-degree-of-freedom quasi-zero-rigidity vibration isolation system based on a Stewart platform. The system comprises an upper platform, a lower platform and six same landing legs fixed between the upper platform and the lower platform through hinge blocks. The three hinge blocks are distributed in an equilateral triangle mode, two corresponding landing legs are fixed to each hinge block, the adjacent landing legs are perpendicular, and the upper platform has six degrees of freedom relative to the lower platform. The six landing legs have the quasi-zero-rigidity characteristic, so that the vibration isolation system has the quasi-zero-rigidity characteristic on the six degrees of freedom, the all-order resonant frequency of the vibration isolation system is small, and the wide vibration isolation frequency range is achieved. The system has the advantages of being high in bearing capacity and low in resonant frequency, has the good restraint effect on low-frequency vibration, and is suitable for vibration isolation of flywheel systems and optical cameras in the spaceflight field and vibration isolation of equipment such as precision machine tools and precision measuring systems in the civil field.
Owner:XI AN JIAOTONG UNIV

Mineral processing method for talc-containing copper-nickel sulphide

InactiveCN105214850AGood suppression effectWeaken inhibitionFlotationNickel sulphideTalc
The invention relates to a mineral processing method for talc-containing copper-nickel sulphide. The method comprises the following steps: grinding raw ore; adding a regulator into ore pulp obtained through grinding, and after stirring for regulating the ore pulp, adding a foaming agent so as to remove partial easy-floating slime through floating; after adding a copper-nickel sulphide collecting agent xanthate into ore pulp subjected to desliming for regulating the ore pulp, adding a talc inhibitor hydroxyethyl cellulose and salinized water glass for inhibiting easy-floating talc, so as to realize separation of talc and sulphide copper-nickel minerals. The inhibitor hydroxyethyl cellulose and salinized water glass have a relatively high inhibiting effect on gangue, and the collecting agent added in advance selectively adsorbs on the surface of sulfide minerals and nickel / copper minerals, so that the inhibition of the inhibitor on sulfide minerals is reduced, and the concentrate recovery rate is increased greatly while gangue minerals are effectively inhibited. The used flotation reagents are low-toxic or non-toxic and have the characteristic of less dosage and excellent effects; and the mineral processing method is an efficient mineral processing method for talc-containing copper-nickel sulphide.
Owner:JIANGXI UNIV OF SCI & TECH

Sulfur-containing natural gas hydrate inhibitor

The invention relates to a sulfur-containing natural gas hydrate inhibitor, which comprises the following ingredients in percentage by weight through being metered by the total weight percentage of 100 percent: 10 to 30 percent of dynamic hydrate inhibitors, 10 to 30 percent of surfactants, 2 to 5 percent of defoaming agents, 2 to 5 percent of corrosion inhibitors and 50 to 70 percent of organic solvents, wherein the dynamic hydrate inhibitors are N-vinylcaprolactam and 2-allylformamide-2-methyl sulfonate bipolymers with the weight-average molecular weight being 5000 to 20000 or N-vinyl pyrrolidone, N-vinylcaprolactam and 2-allylformamide-2-methyl sulfonate terpolymers with the weight-average molecular weight being 6000 to 30000. The hydrate inhibitor has a better inhibition effect on hydrates formed by high-content hydrogen sulfide natural gas and is applicable to the prevention of hydrate formation in a high-temperature and high-salt sulfur-containing natural gas integral conveying system, the blockage formation of the hydrates is prevented, and a good anti-corrosion effect is realized on the integral conveying pipeline and the ground equipment.
Owner:PETROCHINA CO LTD

Neural network howling suppression method and system for digital hearing aid and storage medium

The invention provides a neural network howling suppression method for a digital hearing aid, and the method sequentially comprises the following steps: a preprocessing step: receiving a voice signal,carrying out the sampling and framing of the voice signal, and transmitting the voice signal to a howling detection module; A howling detection step: receiving the voice frame by a howling detectionmodule, detecting whether the voice frame is the howling frame by the howling detection module, if the voice frame is not the howling frame, enabling the voice signal to directly pass through, and continuing the subsequent processing; If the frame is the howling frame, entering a buffer inhibition module; And a buffer suppression step: suppressing the howling frame by a buffer suppression module.The method has the beneficial effects that 1, howling frames can be tracked and suppressed in real time, the suppression effect is better, and the algorithm operation complexity is not high; 2, the neural network is adopted for howling detection, so that the accuracy is higher, and the loss of normal voice is smaller; And 3, a buffer inhibition strategy can prevent howling from recurring in a short time, so that the howling recurrence probability is reduced.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL

Device and method for inhibiting vortex-induced vibration of spiral strake with rotating blade

The invention relates to a device and a method for inhibiting vortex-induced vibration of a spiral strake with rotating blades. The device for inhibiting vortex-induced vibration of the spiral strake with the rotating blades is characterized by being combined by multiple basic units, and each basic unit is composed of a sleeve, spiral strakes and blades; three spiral strakes are arranged on the outer surface of the sleeve and are uniformly distributed in 120 degrees, each spiral strake rotates around the sleeve for one circle, and six blades which can rotate freely are mounted on three vertical lines in the circumferential direction of the outer side of the sleeve; under the action of ocean current, the blades are driven to rotate, and a streaming boundary layer of a vertical pipe is destroyed; under the combined action of the spiral strakes and the blades, a streaming flow field of the vertical pipe is fundamentally destroyed, so that a vortex-induced vibration inhibiting effect is improved. The device for inhibiting vortex-induced vibration of the spiral strake with the rotating blades is processed by plastic, low in cost and resistant to corrosion and can be repeatedly used.
Owner:SOUTHWEST PETROLEUM UNIV

No-load magnetizing inrush current suppression method of YNd11 type three-phase transformer

The invention discloses a no-load magnetizing inrush current suppression method of a YNd11 type three-phase transformer. The method comprises the steps that: a protection device samples and records voltage current of a transformer in a transformer steady-state operation process; after a switch-off signal is received, a switch-off time is determined according to three-phase voltage and current information obtained through sampling, and arc extinguishment of B phase current is achieved; an arc extinguishing voltage phase angle is determined according to B phase current arc extinguishing time; and finally a transformer switch-on sequence and a switch-on phase angle are determined according to the above information. According to the method, only the sampling of three-phase voltage and current waveform in the operation of the YNd11 type three-phase transformer to control the final arc extinguishment of the B phase current is needed, at the same time voltage arc extinguishment phase angle information is obtained, thus the switch-on sequence and the switch-on voltage phase angle are determined, thus no-load switch-on magnetizing inrush current can be suppressed, related parameters are easy to obtain, and the method can be conveniently used in practical engineering.
Owner:XI AN JIAOTONG UNIV +1

Intelligent electrical valve locator main board hardware circuit

The invention relates to an intelligent electrical valve locator main board hardware circuit. A single chip microcomputer circuit is connected with a signal control circuit, a sensor switching circuit, a piezoelectric valve control circuit, a liquid crystal display circuit, an operation keying circuit, an alarm circuit and a valve location drive circuit, and a supply voltage circuit provides working voltages for the signal control circuit, the sensor switching circuit, the single chip microcomputer circuit, the piezoelectric valve control circuit, the liquid crystal display circuit, the operation keying circuit, the alarm circuit and the valve location drive circuit respectively. The intelligent electrical valve locator main board hardware circuit has the advantages that by collecting a two-wire system 4-20mA signal of set valve opening and a fed-back practical valve opening signal of the set valve opening from a regulator, the circuit outputs corresponding control signals to control opening and closing of a piezoelectric valve through blurring operation and decision making after the deviation and the deviation change rate of the two signals are calculated through a single chip microcomputer, therefore, the amount of air entering an adjusting valve air chamber is controlled, a valve element is pushed to move and accurately located, and the aim of automatically adjusting an adjusting valve is achieved.
Owner:TIANJIN JINGTONG CONTROL INSTR TECH

Bacillus subtilis for preventing and treating phytophthora blight of pepper

The invention relates to bacillus subtilis BS04 for preventing and treating phytophthora blight of pepper, belonging to the technical field of biological prevention and treatment on agricultural diseases. The bacillus subtilis BS04 is characterized by being separated from rhizosphere soil of pepper, and being preserved in the China Center for Type Culture Collection (CCTCC) with the preservation number of CCTCC NO: M2014294. The bacillus subtilis BS04 has a bacteriostasis for pathogenic fungi such as pepper phytophthora blight, phytophthora nicotiana, cotton verticillium wilt virus, fusarium oxysporum vasinfectum, sclerotinia sclerotiorum and lettuce botrytis cirerea, the antibacterial rate for original bacteria is within 40-80%, and the antibacterial rate for pepper phytophthora blight is greater than 80%. The bacillus subtilis BS04 provided by the invention is obtained by being separated from soil of healthy plant roots, is free of ecotoxicity, high in security, wide in antimicrobial spectrum, simple to culture and short in period, and has very wide application prospect in biological prevention and control of plant diseases.
Owner:YANGTZE UNIVERSITY

Forming device of full-automatic radiation ring floating type magnetic field forming press

The invention discloses a forming device of a full-automatic radiation ring floating type magnetic field forming press. The forming device comprises a forming device body which comprises a guide column, a middle guide plate, forming molds, a mold frame, an upper punch, a lower punch and a magnetic field coil, wherein the middle guide plate is arranged on the guide column, and the mold frame is rotationally arranged on the middle guide plate; the forming molds are installed on the mold frame, a core rod is arranged in the forming molds, and the core rod is installed on the mold frame; the upperpunch and the lower punch are located at the upper ends and the lower ends of the forming molds respectively, and the magnetic field coil is located beside the forming molds; the upper punch comprises an upper cylinder, a top plate, an upper guide plate and an upper mold; the lower punch comprises a lower cylinder, a bottom plate, a lower guide plate, a lower mold connecting base and a lower moldfixing base. By improving the structure of the forming device, neodymium iron boron powder is subjected to compression molding, and the forming molds can move relative to each other, so that densitydistribution of the neodymium iron boron powder in mold cavities of the forming molds is uniform, the pressing effect is good, and the rejection rate is low.
Owner:BAIQIDA INTELLIGENT TECH NINGBO CO LTD

Brevibacillus laterosporus and application thereof

The invention provides Brevibacillus laterosporus and application thereof. The strain is called after Brevibacillus laterosporus HY30 and has an accession number of CCTCC No: M20191101. The strain provided by the invention can be used for degrading ammonia nitrogen and nitrite nitrogen in water and has a relatively high inhibitory effect on freshwater aquaculture pathogens such as vibrio parahaemolyticus, Pseudomonas hydrophila, Pseudomonas dermoalba and Escherichia coli, so that the strain provided by the invention can be developed and applied to microbial agents for water purification and bacteriostasis of freshwater aquaculture, the occurrence of diseases of fish-shrimp culture is effectively prevented, and the quality and yield of fish-shrimp products are increased.
Owner:武汉合缘绿色生物股份有限公司

Pesticide composition for effectively preventing cucumber downy mildew

The invention discloses a pesticide composition for effectively preventing cucumber downy mildew and belongs to the technical field of pesticide processing. The pesticide composition is characterized by containing 2.7-4.6 percent of alkaloid, 0.5-2.1 percent of a synergist and 92-97 percent of a solvent. According to the pesticide composition for effectively preventing the cucumber downy mildew, the alkaloid serves as an active ingredient, and a certain synergistic ingredient is added; prepared drugs can be used for efficiently preventing the incidence of the cucumber downy mildew disease and has a good inhibition effect on the incident disease; alkaloid ingredients can be automatically degraded in the environment, environment residues are eliminated, and the drug resistance of a crop is avoided. A pesticide preparation is easy to manufacture, safe, effective, convenient to use, low in production cost and good in environment compatibility.
Owner:TIANMU COLLEGE OF ZHEJIANG A&F UNIV

Method for restraining aspergillus fumigates-pseudomonas aeruginosa mixed biological film

The invention discloses a method for restraining an aspergillus fumigates-pseudomonas aeruginosa mixed biological film. According to the method, isochlorogenic acid is utilized for restraining formingof the mixed biological film. According to the method, the application dosage of antibiotic can be effectively reduced, and the aspergillus fumigates-pseudomonas aeruginosa mixed biological film canbe effectively restrained. The medical cost is expected to be reduced, and pain of a patient is expected to be relieved. By means of the experimental method, it is clear that isochlorogenic acid combined antifungal and antibacterial drugs have an obvious restraining effect on the mixed biological film formed by aspergillus fumigates-pseudomonas aeruginosa, and the restraining effect is obviously larger than the effect generated when pure antifungal drugs and antibacterial drug are combined for use.
Owner:GUANGXI MEDICAL UNIVERSITY

Children shoe material with nano antibacterial function and preparation method thereof

The invention discloses a children shoe material with a nano antibacterial function. The children shoe material is characterized by having an antibacterial rate of 96.12%-99.93% on staphylococcus aureus, bacillus subtilis, candida albicans, novel cryptococcus, hair mould, blue mould and aspergillus niger, wherein an inhibition zone diameter is 38.38mm-56.28mm. The invention further discloses a preparation method of the children shoe material. A nano sliver-organic antibacterial agent mixture which is efficient, low in toxicity and broad in spectrum is selected to carry out antibacterial treatment on the children shoe material, and therefore, the children shoe material is highly targeted and has better inhibitory effect on bacteria and funguses in the children shoes. The children shoe material with the nano antibacterial function disclosed by the invention is delicate in conception of the preparation method, only antibacterial treatment needs to be carried out on a finished shoe material and a shoe-making technical process is not added, and therefore, the children shoe material is strong in practicability and suitable for industrial production.
Owner:SICHUAN UNIV

Achieving method for quasi-proportion resonant type electrical power system stabilizer

The invention discloses an achieving method for a quasi-proportion resonant type electrical power system stabilizer. The achieving method includes the following steps that oscillation signals are collected through a measurement link, deviation signals are obtained through a blocking link, the deviation signals are adjusted through a quasi-proportion resonant control link, and then the deviation signals are output to a lead lag link to be compensated. Finally, output signals are obtained after amplitude limiting is conducted through an amplitude limiting link, the output signals are overlapped to the reference voltage of a generator excitation regulator, and the reference voltage is adjusted. According to the achieving method for the quasi-proportion resonant type electrical power system stabilizer, the defect that a traditional electrical power system stabilizer cannot greatly increase damping at resonance frequency points to restrain resonance mechanism low-frequency oscillation is overcome through quasi-proportion resonant control, so that great gain is provided for a resonance oscillation mode only at the resonance frequency points, damping of the resonance oscillation mode is greatly improved, and the resonance mechanism low-frequency oscillation can be effectively restrained without affecting other oscillation modes. The method is simple in stabilizer parameter design and convenient to implement and has great practical value.
Owner:SOUTHEAST UNIV

Improved non-classical receptive field-based bionic contour detection method

The invention aims to provide an improved non-classical receptive field-based bionic contour detection method. The method comprises the following steps of A, inputting a to-be-detected image subjectedto grayscale processing; B, presetting a Gabor filtering function containing multiple direction parameters, performing classical receptive field stimulus response on each pixel point in the to-be-detected image, wherein a corresponding direction serves as an optimal direction of the pixel point; C, building an inhibitory kernel function by utilizing a log function, building a distance weight function through the inhibitory kernel function, and performing convolution on the classical receptive field stimulus response of the pixel point and the distance weight function of the pixel point to obtain inhibitory response of the pixel point; and D, subtracting a product of the inhibitory response of the pixel point and preset inhibitory intensity from the classical receptive field stimulus response of each pixel point, and performing calculation to obtain a final contour value of the pixel point. The detection method overcomes the defects of the prior art and has the characteristics of meeting spatial characteristics of visual receptive field and having a better detection effect.
Owner:GUANGXI UNIVERSITY OF TECHNOLOGY

Cable pressing apparatus

The invention provides a cable pressing apparatus. The cable pressing apparatus comprises a machine body, and an upper pressing wheel and a lower pressing wheel are rotatably arranged on the machine body; the upper pressing wheel and the lower pressing wheel are oppositely arranged in an up-down manner, and a pressing channel used for pressing a cable is formed between the upper pressing wheel and the lower pressing wheel; the upper pressing wheel and / or the lower pressing wheel is rotatably arranged on a mounting seat; the mounting seat is arranged on the machine body in a manner of moving up and down; and a telescopic mechanism used for adjusting the distance between the upper pressing wheel and the lower pressing wheel is arranged between the machine body and the mounting seat. The cable pressing apparatus provided by the invention is simple in structure and more convenient to use, is capable of automatically adjusting the distance between the upper and lower pressing wheels according to monitoring data at any time, and meets the requirements of keeping consistent cable thickness and always keeping a set cable pressure, thereby always keeping an ideal pressing effect of the cable.
Owner:国昌线缆有限责任公司

PE pipe pressing tooling

The invention discloses a PE pipe pressing tooling and relates to the technical field of PE pipe machining. The PE pipe pressing tooling comprises a working table, a hydraulic cylinder, an upper pressing die and a lower pressing die. Guide supports are disposed on the two sides of the working table vertically and upwards; a fixing rack is disposed at the upper ends of the guide supports; the hydraulic cylinder is mounted on the fixing rack; the upper pressing die comprises a movable rod; the movable rod is connected with a piston rod of the hydraulic cylinder; the two ends of the movable rod are in sliding joint with the guide supports; a plurality of connecting rods are disposed at the lower end of the movable rod; the heights of the connecting rods are increased gradually from the connecting rods in the middle to the connecting rods on the two sides; rolling wheels are disposed at the lower ends of all the connecting rods; the lower pressing die comprises a fixing plate and a plurality of support frames arranged on the fixing plate; the heights of the support frames are reduced gradually from the support frames in the middle to the support frames on the two sides; the fixing plate is disposed on the working table; and PE pipes are mounted on the support frames. By means of the design, the structure is simple and reasonable, abrasion and scratches to the surfaces of the PE pipes are not prone to occur, the pipe bending efficiency is improved, and the quality of the PE pipes is guaranteed.
Owner:WUHU NEW UNIVERSAL ENVIRONMENTAL SCI TECH

Peak noise suppression method of variable-window weighted seismic data

The invention relates to a peak noise suppression method of variable-window weighted seismic data and aims at solving various problems that peak noise has characteristics of high energy, occurrence time randomness and wide frequency band, a noise source is complicated and variable to cause that a plurality of peak noises have different continuous time and frequency band widths, the peak noise cannot be favorably suppressed by a fixed-window peak noise suppression method and the applicability is poor. Through experiment, the method has a favorable suppression effect on seismic data disturbed bystrong peak noise with different continuous time, the peak noise is effectively suppressed, and the characteristic of a signal can be maintained according to a detected peak noise changing window length autonomous estimation weight. Compared with an existing mid-value substitution method, the peak noise suppression method has the advantages that the resolution of identifying the peak noise is higher, and the signal energy is fully maintained; and meanwhile, the peak noise suppression method is applicable to different environmental situations, the characteristic of the peak noise is analyzed in real time, the peak noise is suppressed, and the quality of acquired data is effectively ensured.
Owner:JILIN UNIV

Full servo automatic press

The invention discloses a full servo automatic press. The full servo automatic press comprises a rack, wherein a charging bucket, a powder weighing device, a feeding device and a molding device are hermetically arranged on the rack, the charging bucket is arranged above the powder weighing device, the molding device comprises a molding die, a guide pillar, a top plate, a base plate, an upper punch, a lower punch and a magnetic field coil, the top plate and the base plate are fixedly arranged at the upper end and the lower end of the guide pillar, the die is arranged on the base plate by virtueof a die set, the upper punch and the lower punch are respectively located at the upper end and the lower end of the molding die, the magnetic field coil is located beside the molding die, the upperpunch comprises an upper electric cylinder and an upper die, the upper electric cylinder is fixedly arranged on the top plate, the output end of the upper electric cylinder is connected with the upperdie, the upper die is located above the molding die, the lower punch comprises a lower electric cylinder and a lower die, the lower electric cylinder is fixedly arranged on the base plate, the outputend of the lower electric cylinder is connected with the lower die, and the lower die is located below the molding die. The full servo automatic press disclosed by the invention has the advantages that hydraulic oil cylinders are replaced by virtue of the electric cylinders, using effect is good, control accuracy is high, pressing effect is good, defects are hardly produced, and rejection rate islow.
Owner:BAIQIDA INTELLIGENT TECH NINGBO CO LTD

Full-automatic floating type magnetic field forming press for radiation rings

The invention discloses a full-automatic floating type magnetic field forming press for radiation rings. The full-automatic floating type magnetic field forming press comprises a framework. A bucket,a powder weighing device, a conveying device and a forming device are hermetically arranged on the framework, the bucket is positioned above the powder weighing device, the powder weighing device, theconveying device and the forming device are transversely sequentially arranged, the forming device comprises a forming die, an upper punch, a lower punch and a magnetic field coil, the upper punch and the lower punch are positioned at the upper end and the lower end of the forming die, the magnetic field coil is positioned beside the forming die, a balance system is arranged below the conveying device, a precision control box for controlling the balance system is arranged beside the balance system, and the forming die is connected with the conveying device. The full-automatic floating type magnetic field forming press has the advantages that neodymium, iron and boron powder in a cavity of the forming die is uniform in density distribution, defects of products can be prevented during forming pressing, excellent pressing effects can be realized, and the full-automatic floating type magnetic field forming press is low in rejection rate.
Owner:BAIQIDA INTELLIGENT TECH NINGBO CO LTD

Small part X ray image background suppression method and device thereof

ActiveCN105096258AGood suppression effectReduced projection requirementsImage enhancementX ray imageBackground information
The invention discloses a small part X ray image background suppression method and a device thereof. The method comprises steps: rough background information is extracted from an original image; according to the rough background information, fine background information is acquired; according to the fine background information, a background image is synthesized; and a full background image is removed from the original image. The device comprises a rough background extraction module, a fine background extraction module, a background image synthesis module and a background removal module. The invention adopts an X ray image background extraction method for small parts, background information in an effective image region can be effectively removed, a display proportion of soft tissues and detail information in the image is enhanced, and the image quality is enhanced.
Owner:LIAONING KAMPO MEDICAL SYST

Synchronous rotation pressure-bearing type forming mold structure of magnetic field forming press

The invention discloses a synchronous rotation pressure-bearing type forming mold structure of a magnetic field forming press. A forming device comprises guide columns, a middle guide plate, a formingmold, a mold frame, an upper punch, a lower punch and a magnetic field coil; a core rod is arranged in the forming mold, the upper punch and the lower punch are located at the upper end and the lowerend of the forming mold respectively, and the magnetic field coil is located beside the forming mold; the upper punch comprises an upper cylinder, a top plate, an upper guide plate and an upper mold;and the lower punch comprises a lower cylinder, a lower guide plate, a lower mold continuous base and a lower mold fixing base. According to the synchronous rotation pressure-bearing type forming mold structure, a rotating mechanism is further arranged on the bottom plate, and the rotating mechanism is additionally arranged, so that when the neodymium iron boron powder is added into the forming mold, the lower mold, the forming mold and the core rod can rotate, the density distribution of the neodymium-iron-boron powder in the mold cavity of the forming mold is uniform, and a product is not prone to generating defects when being formed and pressed.
Owner:BAIQIDA INTELLIGENT TECH NINGBO CO LTD

Direction-of-arrival estimation method based on deep learning

ActiveCN111446998ARobust direction of arrival estimation functionGood suppression effectSpatial transmit diversityAnalytic signalSignal
The invention discloses a direction-of-arrival estimation method based on deep learning. The method comprises the steps of: discretizing and numbering the range of the direction of arrival, arrangingnarrow-band signals received by each array element of the antenna array in sequence to obtain an array signal vector, and taking Hilbert transform of the array signal vector as an imaginary part and an original narrow-band signal as a real part to obtain the analytic signal vector of the array signal vector; regarding the real part and the imaginary part of each element of the analytic signal vector as a signal channel; and inputting a signal to a pre-trained one-dimensional deep convolutional neural network to extract signal features, inputting the signal features to a full-connection neuralnetwork, taking a softmax function for output, and normalizing the softmax function to obtain a probability that an expected signal arrival direction is a direction corresponding to a serial number. The method can be suitable for the situation that the arrival directions and the intensity of the expected signal and the interference signal are completely unknown, can search the arrival direction ofthe expected signal in a self-adaptive mode, and has very high accuracy, rapidity, credibility and robustness.
Owner:TSINGHUA UNIV

Suspension type self-adaptive hot pressing system of full-automatic floating type hot-pressing molding press

The invention discloses a suspension type self-adaptive hot pressing system of a full-automatic floating type hot-pressing molding press. The suspension type self-adaptive hot pressing system comprises a sealing protection cover, wherein the sealing protection cover is internally provided with a rack; the rack is provided with a feeding device, a heating device and a molding device; the feeding device and the heating device are transversely arranged in sequence; the molding device is arranged at the upper and lower ends of the heating device; a balance system is arranged below the feeding device; a precision control box for controlling the balance system is arranged beside the balance system; a middle guide plate is connected with the feeding device through a connecting plate. The suspension type self-adaptive hot pressing system has the advantages that firstly, the structure of the molding device is changed so that a blank can be pressed and molded up and down at the same time; the pressing effect is good and the rejection rate is low; the automation degree and the working efficiency are improved; the feeding device can float along the molding device so that the feeding device canbe used for continuously and stably feeding the blank into a mold.
Owner:BAIQIDA INTELLIGENT TECH NINGBO CO LTD

Method for mixing wood fibers and adhesive

The invention discloses a method for mixing wood fibers and an adhesive, which mainly comprises that: the wood fibers in a delivery pipe are pushed to advance through impulsion of steam, the adhesive is mixed with the wood fibers in a mixing pipe, the delivery pipe is communicated with the mixing pipe, the mixing pipe is a drying pipe, and the steam forming an inclination angle with the delivery pipe is sprayed to the wood fibers; and the wood fibers are advanced spirally, and are dried in the drying pipe, and the adhesive is more evenly mixed with the wood fibers when the wood fibers are advanced in the form. In the method for mixing the wood fibers and the adhesive, when the wood fibers and the adhesive are mixed, the wood fibers and the adhesive are dried, so the water content of the wood fibers is reduced; and the steam is sprayed into the delivery pipe by forming an angle, and the wood fibers in the delivery pipe are constantly rolled and stirred, so the mixing of the wood fibers and the adhesive is strengthened; and the obtained wood fibers have good suppression effect and the quality is improved obviously.
Owner:桐乡市大华人造板有限公司

Application of phenazine-1-formamide modified compound 15-1 in inhibiting Sclerotinia sclerotiorum

The invention discloses application of a phenazine-1-formamide modified compound 15-1 in inhibiting Sclerotinia sclerotiorum. The phenazine-1-formamide modified compound 15-1 is obtained with phenazine-1-formamide as a mother substance by structural modification. According to the invention, a growth rate method is adopted to measure the inhibiting effect of the phenazine-1-formamide modified compound 15-1 on Sclerotinia sclerotiorum. The results indicate that the modified compound 15-1 has good inhibitory effect on Sclerotinia sclerotiorum, and the inhibitory effect is better than that of the mother substance phenazine-1-formamide, which indicates that the modified compound 15-1 can be used as a lead compound of new pesticides for controlling Sclerotinia rot of rape.
Owner:HUNAN AGRICULTURAL UNIV

Inversion anti-integral saturation method for precision motion control

PendingCN111624870AGood suppression effectReduce positioning motion and constant scan settling timeControllers with particular characteristicsSaturation phenomenonEngineering
The invention discloses an inversion anti-integral saturation method for precision motion control, and the method comprises the steps: obtaining the control quantity of a mechanical platform body of aprecision motion platform through the position deviation between the reference position and the actual position of the mechanical platform body of the precision motion platform; enabling the controlquantity to pass through a preset saturation link and an advanced saturation link, and judging whether the control quantity is in a state about integral saturation or not; if the control quantity is in a state of being about to be subjected to integral saturation, obtaining a corrected control quantity according to the control quantity obtained by utilizing a preset saturation link and the controlquantity obtained by utilizing an advanced saturation link; and sending the corrected control quantity to a preset driver so as to drive the mechanical platform body of the precision motion platformto carry out positioning motion and uniform-speed scanning motion by utilizing the driver according to the corrected control quantity. The integral saturation phenomenon can be inhibited, and the positioning motion of a precision motion platform and the establishment time of constant-speed scanning are reduced.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI

Metal rhodium compound as well as preparation method and application thereof

The invention discloses a metal rhodium compound as well as a preparation method and application thereof. The rhodium compound is monochloro-(1E,6E)-1,7-bis(3-methoxy-4-hydroxyphenyl)-4-(p-ethyl phenyl vinyl)-1,6-heptadiene-2,5-dione-pentamethyl cyclopentadienyl rhodium (III), and the rhodium compound can be used for preparing anticancer and antiparasite medicines. The rhodium compound has a structural formula as shown in the specification.
Owner:陕西专壹知识产权运营有限公司

Pulse interference suppression method and device, equipment and storage medium

The invention provides a pulse interference suppression method and device, equipment and a storage medium. The pulse interference suppression method comprises the following steps: S1, acquiring communication data; s2, control parameters of the communication data are calculated, and the control parameters comprise average power and position parameters; s3, performing gain judgment and sample point number estimation according to the control parameters; and S4, if the gain judgment result is yes, performing analog AGC gain adjustment on the communication data according to the difference value between the average power and the saturation target gain, and performing digital DGC gain adjustment on the signal after analog AGC gain adjustment according to the sampling point number estimated by the sampling point number so as to suppress the pulse interference signal. One technical effect of the embodiment of the invention is that the design is reasonable, the rapid saturation of pulse interference can be realized, the signal is prevented from being saturated, and the purpose of pulse suppression is achieved.
Owner:大唐国投信息科技有限公司
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