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58results about How to "Avoid destabilization" patented technology
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Ink jet head
An ink jet head according to the present invention includes multiple discharge ports for discharging ink, multiple ink flow paths for communicating with the discharge ports, and heat generating elements for generating bubbles in ink filling the ink flow paths. For each ink flow path, two heat generating elements are arranged therein, and the discharge port is arranged along a line that is extended, from the center of a pressure generation region formed by the two heat generating elements, in the normal direction relative to the surface of the substrate. The arrangement pitch of the heat generating elements is equal to or greater than 600 dpi, and the interval dhn between a partition wall defining an ink flow path and the heat generating element adjacent to the partition wall is equal to or smaller than 4 μm.
Owner:CANON KK
Watercraft and inflatable flooring therefor
Watercraft flooring including both inflatable and non-inflatable elements is detailed. Such flooring may be designed to support substantial loads while maintaining its lightweight nature and contributing to its longitudinal and lateral rigidity. Some versions of the flooring have an inflatable core with slats positioned both above the upper surface of the core and below the lower surface of the core at regular intervals along its length. The slats extend laterally across substantially the width of the core, effectively sandwiching portions of the core between them.
Owner:ZODIAC INT
Preparation method for electroactive polypyrrole film
ActiveCN102817042AGood reproducibilitySimple preparation processElectrolysis componentsElectrolytic organic productionPolypyrroleAqueous solution
The invention discloses a preparation method for an electroactive polypyrrole film. The preparation method comprises the following steps of: preparing an aqueous solution of single pyrrole, an electrolyte solution and a protonic acid solution; secondly, mixing the three solutions; and obtaining a polypyrrole film electrode material on a conducting substrate by using a unipolar pulse electric polymerization. According to the preparation method disclosed by the invention, the operation is simple; products are easily obtained; no oxidant is needed; and the secondary pollution caused by the oxidant is avoided. The polypyrrole film electrode material prepared by the method in a neural solution has higher discharging stability.
Owner:TAIYUAN UNIV OF TECH
Method for driving liquid ejector
ActiveUS7896456B2Prevent creepReduce displacementPiezoelectric/electrostriction/magnetostriction machinesPiezoelectric/electrostrictive/magnetostrictive devicesPiezoelectric actuatorsEngineering
Owner:KYOCERA CORP
Method of deflavoring whey protein
InactiveUS7094439B2Avoid instabilityEfficient removalFood ingredient as binding agentVitamin food ingredientsProtein materialsFood flavor
Whey protein materials such as whey from cheese making processes, whey protein concentrates, and whey protein isolates, are deflavored by adjusting the pH of an aqueous composition of such whey protein materials to about 8 to about 12 to solubilize the whey proteins and to release the flavoring compounds and thereafter passing the pH-adjusted composition to an ultrafiltration membrane having a molecular weight cutoff up to about 50,000 Daltons under conditions at which the flavoring compounds pass through the membrane, leaving the retained whey protein material with improved flavor.
Owner:INTERCONTINENTAL GREAT BRANDS LLC
Method for preventing power grid equipment from transmitting power with earth point and scheduling system
ActiveCN110297161APrecise positioningAvoid secondary impactFault location by conductor typesAc network circuit arrangementsElectricityElectric power system
The invention discloses a method for preventing power grid equipment from transmitting power with an earth point and a scheduling system, and belongs to the technical field of maintenance of power systems. The method comprises the steps of setting a measurement point with a fixed position at the power grid equipment; acquiring first sensing voltage data of the measurement point when the power gridequipment is in a first electrical connection state without the earth point; when the power grid equipment is in a second electrical connection state before the execution of a first power transmission step, detecting second sensing voltage data of the measurement point; if the second sensing voltage data is the same as the first sensing voltage data, executing the power transmission step, whereinthe second electrical connection state is corresponding to the first electrical connection state. The invention provides the simple and efficient equipment earthing judgement technical means for thescheduling personnel not at the maintenance site, on the one hand, the problem that the scheduling staff grasps the earth wire information by only depending on the report of the maintenance site is solved, and on the other hand, the technical blank of earthing judgment in closed equipment and at line section outside the station is filled.
Owner:STATE GRID HEBEI ELECTRIC POWER CO LTD +1
Dispersible antimicrobial complex and coatings therefrom
InactiveUS20180340046A1Reduce presenceSolve the lack of activityBiocideAnionic surface-active compoundsColloidAntimicrobial compound
Disclosed are latexes, suspensions, and colloids having a cationic antimicrobial compound complexed with an anionic surfactant. The surfactant may have greater affinity for the antimicrobial compound than other anionic surfactants and other anions in the latex, suspension, or colloid that contribute to disperse phase stability to prevent disrupting the dispersions. Dispersions containing the antimicrobial compound may therefore have a shelf life comparable to dispersions that are otherwise identical but lack the cationic antimicrobial compound and its complexed anionic surfactant. Coatings made with the complexes can exhibit essentially undiminished antimicrobial activity.
Owner:POLY GRP LLC
Compositions and methods of purifying myelin-associated glycoprotein (MAG)
InactiveUS20060088912A1Prevent precipitation and/or destabilizationGood stabilityAnimal cellsImmunoglobulin superfamilyMolecular biologyMyelin-associated glycoprotein
The present invention provides compositions and methods useful for purifying recombinant myelin-associated glycoprotein (MAG) and fragments thereof. In particular, the invention provides a one-step purification method for MAG and MAG fragments. Novel forms of human recombinant MAG protein are also disclosed in addition to methods of reliably producing and storing stable recombinant MAG proteins.
Owner:WYETH
Fluorenyl-based conjugated microporous polymer diffusion particle for complexing quantum dots, preparation method thereof, quantum dot diffusion membrane and application thereof
ActiveCN108484906AReduce usagePixel heightNon-macromolecular adhesive additivesFilm/foil adhesivesQuantum dotControllability
The invention relates to the field of quantum dots and diffusion membranes and particularly relates to a fluorenyl-based conjugated microporous polymer diffusion particle for complexing quantum dots,a preparation method thereof, a quantum dot diffusion membrane and an application thereof. In order to solve the problem that inorganic quantum dots are exposed to air and can be easily oxidized to lose effects. The invention provides the fluorenyl-based conjugated microporous polymer diffusion particle for complexing quantum dots, the preparation method thereof, the quantum dot diffusion membraneand the application thereof. The fluorenyl-based conjugated microporous polymer is complexed with the quantum dot and the quantum dot is wrapped by the diffusion particle. Through complexing of the organic fluorene material and wrapping of the inorganic quantum dot, it is avoided that the inorganic quantum dot is exposed to air and can be easily oxidized to lose effects. The preparation method ofthe diffusion particle is simple, has strong controllability, is low in coat and fast realizes large-scale production and custom-level refinement application.
Owner:NINGBO EXCITON TECH
Differential amplifier circuit, display panel driver, and display device
InactiveUS8222957B2Avoid destabilizationIncrease currentDifferential amplifiersNon-linear opticsDisplay deviceEngineering
A differential amplifying circuit includes first and second differential transistor pairs, first and second constant current sources, first and second current mirror circuits and first and second output transistors. The differential amplifying circuit also includes a feedback circuit configured to perform feed-back operations to the first and second current mirror circuits to restrain reduction of gate voltages of the output transistors. The constant current sources are configured to increase bias currents in response to reduction of the gate voltages of the output transistors.
Owner:RENESAS ELECTRONICS CORP
Knee joint rehabilitation physiotherapy device
InactiveCN111228101APromote recoveryReduce supportChiropractic devicesVibration massageMuscle trainingMassage
The invention discloses a knee joint rehabilitation physiotherapy device. The device comprises two knee protecting straps symmetrically arranged up and down, wherein two knee protecting devices are arranged on the knee protecting straps, the two knee protecting devices are symmetrical left and right, the knee protecting devices are used for providing supporting force for knees so as to protect knees, an auxiliary motion device is arranged on the knee protecting device, the auxiliary motion device helps a wearer to perform knee bending motion by providing auxiliary rotating motion, a muscle training device is arranged in a power cavity, the muscle training device is used for providing damping for the wearer to train muscles at a knee joint, a heating massage device used for carrying out vibration massage on the knee joint of the wearer is arranged in the power cavity, and the wearer can adjust supporting force of the auxiliary motion device on the knee joint so as to reduce the supporting force on the knee joint along with recovery of the knee joint of the wearer, thereby effectively reducing atrophy of muscles of the knee joint. Therefore, the device can avoid a problem of reducedstability of the knee joint caused by long-term wearing of a knee pad.
Owner:缙云都画医疗科技有限公司
Method for producing electrophotographic photoreceptor, electrophotographic photoreceptor and image forming apparatus
InactiveUS20070141505A1Increase photosensitivityGood photo-responsivenessRadiation applicationsElectrographic process apparatusAntioxidantChemistry
An method for producing an electrophotographic proreceptor includes a first coating step of applying a coating liquid containing a sublimable antioxidant and a photoconductive substance, onto a conductive substrate to form a first coating film thereon, a first drying step of drying the formed first coating film by heating to form a first photosensitive layer, a second coating step of applying the coating liquid used in the first coating step, onto the first photosensitive layer to form a second coating film, and a second drying step of drying the formed second coating film by heating to form a second photosensitive layer. In the second drying step, the drying condition is made to differ from the drying condition in the first drying step so that a degree of sublimation of the antioxidant in the second drying step is lower than that of sublimation of the antioxidant in the first drying step.
Owner:SHARP KK
Micromotor employing multilayer annular piezoelectric ceramic
ActiveCN107306097AReduce the driving voltageAvoid destabilizationPiezoelectric/electrostriction/magnetostriction machinesLow voltageMicromotor
The invention discloses a micromotor employing multilayer annular piezoelectric ceramic, and belongs to the field of a piezoelectric driver, a small and special electrical machine and a miniature driver. The micromotor comprises a shell, wherein a stator and a rotor are arranged in the shell, the stator comprises a stator round ring, contacts are arranged at one side of the stator round ring, the multilayer annular piezoelectric ceramic is arranged at the other side of the stator round ring, the multilayer annular piezoelectric ceramic is uniformly divided into an even number of partition regions, the polarization directions of two adjacent partition regions are opposite, the energization directions of two adjacent layers of annular piezoelectric ceramic are opposite, a positive electrode and a negative electrode are arranged on an upper surface and a lower surface of the multilayer annular piezoelectric ceramic, the positive electrode is also divided into an even number of partition regions which are in one-to-one correspondence to the partition regions of the multilayer annular piezoelectric ceramic, the number of the partition regions of the multilayer annular piezoelectric ceramic are two times of the number of the contacts, and the positions of the contacts are corresponding to empty regions between the partition regions of two adjacent electrodes. Compared with the prior art, the micromotor has the characteristics of low-voltage driving performance, high stability and large torque output.
Owner:北京派和智能装备技术有限公司
Dispersible antimicrobial complex and coatings therefrom
ActiveUS20200354527A1Reduce presenceSolve the lack of activityBiocideAnionic surface-active compoundsActive agentMicrobiology
Disclosed are latexes, suspensions, and colloids having a cationic antimicrobial compound complexed with an anionic surfactant. The surfactant may have greater affinity for the antimicrobial compound than other anionic surfactants and other anions in the latex, suspension, or colloid that contribute to disperse phase stability to prevent disrupting the dispersions. Dispersions containing the antimicrobial compound may therefore have a shelf life comparable to dispersions that are otherwise identical but lack the cationic antimicrobial compound and its complexed anionic surfactant. Coatings made with the complexes can exhibit essentially undiminished antimicrobial activity.
Owner:POLY GRP LLC
Stability increasing holder, stability increasing holder implementation method and unmanned aerial vehicle system
InactiveCN108491001AImprove stabilization and anti-shake effectAvoid destabilizationTemperatue controlTemperature controlMotor drive
The invention provides a stability increasing holder, a stability increasing holder implementation method and an unmanned aerial vehicle system, and relates to the technical field of the aerial photographic unmanned aerial vehicle. The stability increasing holder comprises a holder controller and a detection module, a constant temperature control module and a motor driving module which are connected with the holder controller. The detection module is used for detecting the attitude information and the temperature parameter of the stability increasing holder and transmitting the attitude information and the temperature parameter to the holder controller. The holder controller is used for controlling the ambient temperature of the detection module through the constant temperature control module according to the temperature parameter. The motor driving module is connected with the motor. The holder controller is also used for driving the motor to rotate through the motor driving module according to the attitude information. According to the stability increasing holder, the stability increasing holder implementation method and the unmanned aerial vehicle system, the problem of stability reduction caused by the influence of the ambient temperature on the detection module because of high temperature difference can be effectively avoided, and the stability increasing and anti-jittering effect of the holder can be enhanced.
Owner:SHENZHEN ZHENDI INFORMATION TECH CO LTD
Magnetic suspension bearing assembly, motor and compressor
PendingCN112160987AAvoid destabilizationReduced stabilityPositive displacement pump componentsShaftsElectric machineryMagnetic field
The invention provides a magnetic suspension bearing assembly, a motor and a compressor. The magnetic suspension bearing assembly comprises a shell; a permanent magnet assembly is arranged in the shell; a first stator assembly is arranged in the shell and located on the first side of the permanent magnet assembly; a second stator assembly is arranged in the shell and located on the second side ofthe permanent magnet assembly, and the second stator assembly and the first stator assembly are oppositely arranged; a rotating shaft is sequentially arranged in the first stator assembly, the permanent magnet assembly and the second stator assembly in a penetrating manner; and the permanent magnet assembly generates a bias magnetic field, a control magnetic field controls the rotating shaft to dotranslational motion along the Y axis, rotate around the Y axis, do translational motion along the X axis, rotate around the X axis and / or do translational motion along the Z axis by adjusting the bias magnetic field, the X axis and the Y axis are in the radial direction of the rotating shaft, and the Z axis is the axis direction of the rotating shaft. The magnetic suspension bearing assembly adopting the structures is compact in structure, capable of effectively shortening the axial length of magnetic suspension, simple in structure and good in stability.
Owner:GREE ELECTRIC APPLIANCES INC
Ecological management method in land renovation engineering of Qinba mountainous regions
InactiveCN110800415AAvoid scourAvoid destabilizationAgriculture gas emission reductionSoil-working methodsEnvironmental resource managementEnvironmental engineering
The invention relates to land ecological management, in particular to an ecological management method in land renovation engineering of Qinba mountainous regions, and aims to solve the technical problems that land in the Qinba mountainous regions is serious in water loss and soil erosion and existing terrace ridge-protection modes are too high in cost. The method includes following steps: 1) digging a counter-slope terrace face; 2), building a drainage channel and an impounding reservoir; 3), building a slope protection wall and arranging a drainage pipe: 3.1), sealing ecological bags after being filled with a matrix material mixed with grass seeds; 3.2), piling up a layer of stone at a slope foot; 3.3), transversely piling up the ecological bags from bottom to top above the stone along the slope surface of a side slope, and arranging a drainage pipe; 3.4), using connecting buckles to connect and fix the ecological bags in up-down adjacency; 3.5), coping to form the slope protection wall; 4), maintaining and growing grass on the slope protection wall. The method effectively solves the problem that the land in the Qinba mountainous regions is serious in water loss and soil erosion,and is low in cost.
Owner:SHAANXI ESTATE DEV SERVICE CORP
Deep sea mounting releasing mechanism
The invention relates to the technical field of release devices, in particular to a deep sea mounting releasing mechanism. The deep sea mounting releasing mechanism comprises a power supply, a centralrod and a bracket seat, wherein the central rod is provided with a magnet seat, a pull rod seat and a bracket seat from top to bottom; an electromagnet is fixed in a first through hole; at least onepull rod is connected to the pull rod seat through a shaft; at least one iron block is fixed to the upper surface of the pull rod seat; at least one bracket is connected to the bracket seat through ashaft; one ends of the pull rods are connected to a non-end point position of a bracket through the shaft; and an arc-shaped clamping groove is formed in the end, away from the central rod, of the bracket. The mechanical movement among the pull rods, the bracket and the arc-shaped clamping groove is controlled by utilizing the attraction effect of the electromagnet and the iron blocks so as to realize the mounting and accurate releasing of the to-be-released substance in the deep sea; the structure is simple and firm, the operation is convenient, the problem of low stability of a traditional release mechanism in the deep sea environment can be solved, and the deep sea mounting releasing mechanism has good practical value.
Owner:ZHONGBEI UNIV
A valve actuator that is easy to install and disassemble
ActiveCN109681649BEasy to disassembleEasy to disassemble and replaceSpindle sealingsLift valveValve actuatorControl engineering
The invention discloses a valve actuator convenient to mount and demount. The valve actuator comprises an actuator body, wherein the bottom end of a base is connected with an actuator-body support frame; two sides of the base are connected with first bolts, which run through the surface of the base and extend into the actuator-body support frame; a valve body is arranged at the bottom end of the actuator-body support frame; second bolts are arranged on two sides of the bottom end of the actuator-body support frame; pipeline connecting mechanisms are arranged at two ends of the valve body; theends, of the pipeline connecting mechanisms, away from the valve body, are connected with guide pipes; second fixed pipes are arranged in first fixed pipes; and fastening bolts run through fixed plates. According to the valve actuator, through the provided first bolts, the actuator body and the actuator-body support frame can be demounted conveniently, and through the provided second bolts, the actuator-body support frame and the valve body can be demounted conveniently, so that the valve actuator is easy to mount and demount and convenient to maintain and replace; through the provided pipeline connecting mechanisms, the valve body and the guide pipes can be demounted conveniently; and therefore, the applicability of the valve actuator is improved.
Owner:兰控阀门执行器江苏有限公司
Magnetic suspension bearing assembly, motor and compressor
PendingCN112615507AAvoid destabilizationReduced stabilityShaftsMechanical energy handlingElectric machineryEngineering
The invention provides a magnetic suspension bearing assembly, a motor and a compressor. The magnetic suspension bearing assembly comprises: a shell iron core provided with a rotating shaft; an axial stator assembly which is arranged in the shell iron core along the peripheral side of the thrust disc of the rotating shaft; a first stator assembly which is arranged on the shell iron core and located on the first side of the axial stator assembly; and a second stator assembly which is arranged in the shell iron core and located on the second side of the axial stator assembly, wherein the second stator assembly and the first stator assembly are oppositely arranged, the first stator assembly and the second stator assembly are used for generating independent radial control magnetic fields, and the axial stator assembly is used for generating a control magnetic field in the axial direction of the rotating shaft. The magnetic suspension bearing assembly adopting the structure is compact in structure, capable of effectively shortening the axial length of magnetic suspension, simple in structure and good in stability.
Owner:GREE ELECTRIC APPLIANCES INC
A kind of polymer dispersion and preparation method thereof
InactiveCN104693345BImprove securityPrevent gelationOther chemical processesBuffering agentPolymer chemistry
The invention discloses a polymer dispersion and a preparation method thereof. The polymer dispersion is obtained through the soap-free emulsion copolymerization technology. The polymer dispersion comprises a negative ion monomer, a non-ionic monomer, a pH buffering agent, an initiator, an antalkali and water, wherein the negative ion monomer accounts for 3-10 parts of the raw materials, the non-ionic monomer accounts for 10-25 parts of the raw materials, the pH buffering agent accounts for 0.3-1.0 part of the raw materials, the initiator accounts for 0.3-2 parts of the raw materials, and the water accounts for 100 parts of the raw materials. A proper amount of the antalkali is used for adjusting the pH value of a reaction system to range from 6.0 to 9.0. The obtained polymer dispersion is used as a dust depressor, an effective shell can be formed on the surface of dust, and the construction safety and application safety of the polymer dispersion are higher. The polymer dispersion is applied as the chemical dust depressor, can be diluted with water to be sprayed for use, and is good in overall performance, safe and environmentally friendly.
Owner:HEBEI UNIV OF TECH
Motor control device, control system, and motor control method
A motor control device is equipped with a command receiving unit adapted to receive a movement command and a first control period of the movement command from a numerical controller, a command generating unit which, on the basis of the first control period and a second control period which is determined in advance, is adapted to generate a movement command of the second control period from the movement command of the first control period, and a motor control unit adapted to control a motor, in accordance with the movement command generated by the command generating unit.
Owner:FANUC LTD
System capable of facilitating illumination and ventilation of door leaf
InactiveCN106761248AImprove stabilityConvenient lightingVentilation arrangementDoor leavesTransmittanceElectrical and Electronics engineering
The invention discloses a system capable of facilitating illumination and ventilation of a door leaf. The system comprises the door leaf, baffles and screws I, and ventilation hole sets are arranged on the door leaf. The door leaf is hollow, an inner cavity formed by the hollow portion communicates with the ventilation hole sets, and the baffles are parallel to the door leaf and located in the inner cavity. Threaded holes I are formed in the ends, close to the ground, of the baffles and matched with the screws I, and one ends of the screws I penetrate through the threaded holes I and then are connected with motors. The screws I are rotated, and the baffles move in the inner cavity so that the ventilation hole sets can be blocked. When ventilation and light transmittance are needed, the screws I are rotated to drive the baffles to move so that air and light rays can pass through the ventilation hole sets; and when ventilation and light transmittance are not needed, the screws I are rotated to drive the baffles to move so as to block the ventilation hole sets through the baffles. In this way, privacy can be protected when ventilation and light transmittance are needed, external sight lines can be completely obstructed when ventilation and light transmittance are not needed, and a whole door does not need to be opened for ventilation and light transmittance.
Owner:DEYANG KAIDA DOORS
A method and system for selecting a protection device
ActiveCN109193556BAvoid destabilizationReduce labor costsParameter calibration/settingArrangements responsive to excess currentHemt circuitsSafety standards
A method and system for selecting protective device is disclosed. By determining the safety standards and circuit parameters of the protected circuit, the circuit parameters of the overcurrent protection device are determined according to the safety standards and circuit parameters of the protected circuit, and the type of the overcurrent protection device required by the protected circuit is determined according to the circuit parameters of the overcurrent protection device by querying the preset device specification table. According to the safety standard of the protected circuit and the circuit parameters as the reference parameters of the overcurrent protection device, It avoids the deviation of the selection parameters caused by the difference of different safety standards, which leads to the problem that the overcurrent protection device can not play a good role in protecting the protected circuit, and the stability of the overcurrent protection device is reduced. Moreover, by automatically calculating the circuit parameters of the overcurrent protection device, the automatic selection of the overcurrent protection device is realized, and the human cost in the parameter calculation process is saved.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
Micromotor Using Multilayer Annular Piezoelectric Ceramics
ActiveCN107306097BReduce the driving voltageAvoid destabilizationPiezoelectric/electrostriction/magnetostriction machinesLow voltageMicromotor
Owner:北京派和智能装备技术有限公司
Communication tower
ActiveCN111425044AExtended service lifeAvoid hidden dangersTowersLaddersGear wheelElectric machinery
The invention discloses a communication tower, and relates to the technical field of communication equipment. The communication tower comprises a communication tower main body, wherein the communication tower main body is provided with an arc-shaped through groove, the arc-shaped through groove is provided with a window, an I-shaped baffle plate and an inverted L-shaped baffle plate are arranged in the window, and a first supporting plate and a second supporting plate are respectively arranged on the left side of the I-shaped baffle plate and the right side of the inverted L-shaped baffle plate; a lifting rod is arranged on the left side of the arc-shaped through groove, a horizontal rod, an arc-shaped rod and an ejector rod are arranged on the lifting rod, a crawling ladder rod is arranged on the right side of the arc-shaped through groove, connecting bases are arranged at an upper end and a lower end of the crawling ladder rod respectively and slidably connected with sliding rails; ahorizontal crawling ladder is arranged on the left side of the crawling ladder rod; a driving motor is arranged in the communication tower main body, an output end of the driving motor is connected with a threaded rod, the threaded rod is sleeved with a threaded block and an adjusting gear, and the adjusting gear is matched with a rack vertically arranged at the bottom of the lifting rod. The crawling ladder is arranged in a tower body, the service life of the crawling ladder is prolonged, firmness reduction is avoided, and safety is improved.
Owner:青岛正为能源科技有限公司
A deep-sea mount release mechanism
ActiveCN110065605BAvoid destabilizationStable structureUnderwater equipmentEngineeringStructural engineering
Owner:ZHONGBEI UNIV
Collagen purification method
ActiveCN113105541AHigh yieldHigh purityConnective tissue peptidesPeptide preparation methodsPurification methodsUltrafiltration
The invention provides a collagen purification method, and relates to the technical field of protein processing. According to the method, components such as insoluble substances and non-acid-soluble proteins in the solution are precipitated by adopting a manner of combining the diatomite and the biological flocculant, and then are removed by plate and frame filtration, so that the operation is simple, the subsequent ultrafiltration time can be saved, and the yield and purity of the collagen are improved; in the salting-out process, a mixture of ammonium chloride with the mass fraction of 15-25% and ammonium sulfate with the mass fraction of 30-40% is used, and the volume ratio of the ammonium chloride to the ammonium sulfate is controlled to be (5-10): 1, so that the precipitation amount of the collagen can be obviously increased, and the yield of the collagen is further increased; and finally, the mixed solution is desalted in a manner of combining an ultrafiltration membrane with a tubular ultrafiltration membrane, so that all salts in the salting-out process can be removed, the purity of the obtained collagen is ensured, and the condition that the stability is reduced due to the fact that the collagen contains the salts is avoided.
Owner:浙江崇山生物制品有限公司
Motor control device, control system, and motor control method
ActiveUS20190137967A1Avoid destabilizationReduce loadProgramme controlComputer controlControl systemEngineering
A motor control device is equipped with a command receiving unit adapted to receive movement commands and first control periods of the movement commands from each of a plurality of numerical controllers, a command generating unit which, on the basis of the plurality of first control periods and a plurality of second control periods in accordance with each of the plurality of first control periods, is adapted to generate movement commands of the plurality of second control periods from the movement commands of the plurality of first control periods, and a motor control unit adapted to control a motor in accordance with the plurality of movement commands generated by the command generating unit.
Owner:FANUC LTD
Device and method for realizing burning of multiple FPGAs based on CPLD chip
The invention discloses a device and method for achieving burning of multiple FPGAs based on a CPLD chip, the device comprises a JTAG connector and the CPLD chip, the JTAG connector is connected with an upper computer, the CPLD chip is connected with the JTAG connector and FPGA chips to be burnt, the CPLD chip is provided with a plurality of selection signal input interfaces, each selection signal input interface corresponds to one FPGA chip, and the selection signal input interfaces are connected with the JTAG connector and the FPGA chips to be burnt. And the CPLD chip controls the corresponding FPGA chip to be communicated with the JTAG connector according to a selection signal input by the selection signal input interface so as to burn the configuration file in the upper computer into the corresponding FPGA chip. The signal integrity can be ensured when the FPGA chip is burnt, meanwhile, damage and misoperation of the FPGA chip are avoided, and the burning stability is improved.
Owner:SUZHOU CENTEC COMM CO LTD
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