34results about How to "Improve poor stability" patented technology

The invention discloses an inner ring grinding device and grinding method for rotating disc type bearing machining. The inner ring grinding device comprises a base, wherein a motor frame is welded toone side of the upper surface of the base, and the upper portion of the motor frame is connected with a speed reducer through bolts; a first motor which is in transmission connection with an input shaft is fixed to the side wall where the input shaft of the speed reducer is located through bolts, and a rotating seat is fixed on the other side of the upper surface of the base through bolts; and a supporting rod is movably connected with the interior of the rotating seat through a bearing, and a rotating disc is welded to the top of the supporting rod. According to the inner ring grinding deviceand grinding method, four bearing brackets can be controlled to move oppositely by only rotating a central rod, and the height and speed can be adjusted; the bearing brackets can clamp the outer wall, the upper surface and the lower surface of the bearing, and the fixing strength of the bearing is improved; and an upper movable frame is slidably connected in a lower supporting frame, and a movable block with the bottom provided with four pulleys is slidably connected inside a sliding frame, so that the stability of a milling cutter control structure is improved, and the machining precision ofan inner ring of the bearing is guaranteed.

The invention relates to a stable white-light LED based on silicon dioxide coated perovskite quantum dots, and a preparation method of the stable white-light LED. According to the stable white-light LED based on the silicon dioxide coated perovskite quantum dots, perovskite quantum dots are embedded in a silicon dioxide substrate and combined with a blue-light LED chip to emit white light, 3-aminopropyltriethoxysilane (APTES) is subjected to hydrolysis to form the silicon dioxide substrate, then the perovskite quantum dots are coated by silicon dioxide, stable perovskite quantum dots in the air are obtained, the prepared silicon dioxide coated perovskite red-light and green-light quantum dot fluorescent powder serves as a light emitting layer, the blue-light LED chip serves as an excitation light source, the white light is emitted by utilizing the three-primary-color matching of blue light, red light and green light, and the stable white-light LED based on the silicon dioxide coated perovskite quantum dots is obtained. The stable white-light LED proposes the idea of embedding the perovskite quantum dots into the silicon dioxide substrate formed by hydrolyzing the APTES, so that the obtained silicon dioxide coated perovskite quantum dots can maintain long-term stability in the air and have high fluorescent quantum yield.

The invention discloses a preparation method of an environment-friendly type composite modified asphalt. The preparation method comprises three steps including quick dissolving rubber master batch preparation, quick dissolving rubber mother liquor preparation, and co-crosslinking growth with SBS. The preparation method comprises following specific steps: 1, quick dissolving rubber master batch preparation, wherein tyre rubber powder is subjected to multi-stage screw continuous desulphurization technology for desulphurization, and is subjected to screw extrusion and granulation so as to obtainthe quick dissolving rubber master batch; 2, quick dissolving rubber mother liquor preparation, wherein the quick dissolving rubber master batch and matrix asphalt are mixed at a mass ratio of 32 / 68-65 / 35, immersion growth is carried out, and shearing using a high speed shearing equipment is carried out so as to obtain the quick dissolving rubber mother liquor; and 3, co-crosslinking growth, wherein the quick dissolving rubber mother liquor and SBS modifying agent are mixed, a co-crosslinking stabilizing agent is added into an obtained mixed product, and stirring growth is carried out so as toobtain the environment-friendly type composite modified asphalt finished product. The preparation method is capable of realizing recycling of a large amount of waste tyre, and is excellent in environment protection performance; the produced finished product possesses both high and low temperature performance, is excellent in middle temperature antifatigue performance, and noise reduction performance, and high in ultraviolet ray resistant intensity; deformation degree is low; and the hardness is larger.

The invention provides a traditional Chinese medicine composition for treating lumbar spondylosis, cervical spondylosis and pain from rheumatism and a preparation and preparation method thereof. The traditional Chinese medicine composition is mainly prepared from rhizoma polygoni cuspidati, caulis spatholobi, radix clematidis, radix dipsaci, radix stephaniae tetrandrae, kadsura pepper stems, paniculate swallowwort roots, notopterygium roots, radix angelicae pubescentis, datura seeds, isatis roots, raw radix et rhizoma rhei, angelica sinensis, rhizoma gastrodiae, scolopendra, camphor, radix astragali, licorice roots, three-nerved spicebush roots, cassia twigs, radix saposhnikoviae, radix angelicae, frankincense, myrrh, rhizoma dioscoreae nipponicae, squama manis, dragon's blood, mentholum, borneol, flos carthami, red sage roots, szechuan lovage rhizomes, radix aucklandiae, rhizoma cyperi, rhizoma atractylodis, wooly datchmanspipe herbs, garden balsam stems, dried ginger, alpinia officinarum hance, fructus piperis, rhizoma kaempferiae, beautiful sweetgum fruits and rhizoma corydalis. The traditional Chinese medicine composition has the effect of invigorating blood circulation, removing stasis, dredging collaterals, muscles and bones and remarkably relieving pain and can be used for treating limb pain caused by cervical spondylosis, lumbar spondylosis, rheumatism and rheumatoid arthritis, periarthritis, hyperosteogeny, sciatica and limb numbness and the like, and great practical application value is achieved.

The invention provides a shift register unit, which comprises an input module, an output module, a first storage module, a first reset module, a second reset module, a pull-down module and an interval module, wherein the input module is connected with an input end, a first voltage end and a pull-up node; the output module is connected with the pull-up node and a first clock end; both ends of the first storage module are connected with the pull-up node and the output end separately; the first reset module is connected with a reset end, a second voltage end and the pull-up node; the second reset module is connected with a second clock end and a pull-down node; the pull-down module is connected with the pull-down node, the second voltage end and the output end; and the interval module is connected with the pull-up node, the pull-down node and the second voltage end. The invention further provides a driving method of the shift register unit, a gate driving circuit and a display device. The shift register unit, the driving method thereof, the gate driving circuit and the display device can avoid competition between the pull-up node and the pull-down node, thereby being capable of improving the stability of a GOA, and being conductive to increasing the yield rate of display panels.

The invention discloses an automatic test data processing method, device and equipment and a readable storage medium, and relates to the blockchain technology, the method comprises the following steps: when an automatic test instruction is detected, receiving a demand document of an automatic test, and extracting modification parameters from the demand document; acquiring the type of each modification parameter, determining the data hierarchy of each modification parameter according to the type of the modification parameter, and determining each piece of to-be-modified automatic test data associated with the modification parameter according to the data hierarchy of each modification parameter; and modifying the to-be-modified automatic test data to obtain to-be-combined target test data ofthe automatic test instruction, and combining the to-be-combined target test data to obtain a target automatic test case. The technical problems that in the prior art, the automatic test developmentefficiency is low, and the code maintenance cost is too high are solved.

The invention discloses a preparation method of a stable and white-light LED. The preparation method comprises the following steps of selecting an ultraviolet LED chip, and carrying out ultrasonic andultraviolet ozone cleaning treatment; preparing perovskite quantum dots wrapped by the mesoporous silica, and then preparing a quantum dot mixture; placing a light-taking lens on the ultraviolet chip, and filling a silica gel pouring sealant; connecting the prepared LED with an external driving circuit to complete the preparation of the high-stability and white-light LED. According to the invention, the perovskite quantum dots are embedded into the mesoporous silica, so that the quantum dots can be protected against the erosion of water and oxygen. The poor stability problem of the quantum dots is solved. Meanwhile, the influence of the anion exchange reaction on the mixed quantum dots can be avoided, so that obtained mesoporous silica-coated perovskite quantum dots have long-term stability in the air. At the same time, the agglomeration between the quantum dots is avoided. The quantum yield of the quantum yield is improved. The prepared white-light LED has very high luminous efficiency and good stability.

The invention discloses a construction method of a porous pavement. The problems that in the flood season, a basic pavement layer of a porous pavement in the prior art is likely to be soaked softly byaccumulated water, strength is reduced, and an upper porous brick layer settles are solved. The method is technically characterized in that the method includes the steps that a roadside ditch is excavated, wherein an excavator is used for excavating the roadside ditch for containing a pavement layer; a leveling basic layer is built, the bottom face of the roadside ditch is trimmed, so that the bottom face is level, the bottom face of the roadside ditch is compacted through a road roller and paved with graded broken stone, and the upper surface of the graded broken stone is level; a basic pavement layer is built on the leveling basic layer, supporting bodies are arranged at intervals, and filling spaces used for filling porous base bodies are formed between the supporting bodies; the filling spaces are filled with the porous base bodies, and a supporting face used for supporting a porous face layer is formed by the porous base bodies and the upper ends of the supporting bodies; the porous face layer is built on the basic pavement layer; and a road is maintained. The method has the beneficial effects that the strength of the pavement is improved, and a pavement settlement phenomenonis reduced.

The invention discloses a bakuchiol-containing liposome and a preparation method thereof. The bakuchiol-containing liposome is prepared from, by weight, 3 to 8 parts of bakuchiol, 3 to 8 parts of lecithin, 0.5 to 1.5 parts of cholesterol, 5 to 15 parts of caprylic / capric triglyceride, 15 to 30 parts of 1, 3-propylene glycol, 1 to 3 parts of acetylated sodium hyaluronate and 50 to 65 parts of water. The preparation method comprises the following steps: adding bakuchiol, lecithin and cholesterol into caprylic / capric triglyceride and 1, 3-propylene glycol, and melting to obtain an oil phase; adding acetylated sodium hyaluronate into water, and dissolving to obtain a water phase; and adding the oil phase into the water phase, and homogenizing at high pressure to obtain the psoralen-containing liposome. The bakuchiol-containing liposome has the characteristics of small skin irritation and good transdermal absorption effect.

The invention relates to the field of high-polymer materials, in particular to a superfine plant powder high-polymer foaming material and a preparation method and application thereof. The high-polymerfoaming material is prepared from, by weight, 90-110 parts of plastics, 20-40 parts of superfine plant powder, 0.5-2 parts of stearic acid, 2-8 parts of foaming agents, 0.5-2 parts of foaming additives, 0.3-1.5 parts of vulcanizing agents and 10-20 parts of superfine plant powder foaming stabilizers. The preparation method includes subjecting a mixture of the raw materials to vulcanized foaming at the temperature 160-170 DEG C. The superfine plant powder and other components are subjected to vulcanized foaming proportionally to obtain high-polymer foaming material; with adding of the superfine plant powder foaming stabilizer, the high-polymer foaming material is stabilized, and thus, high-polymer foaming material with high performance is obtained while special functions of the superfine plant powder play roles and biodegradablity of the high-polymer foaming material is reduced.

The invention provides a SiC / C homogenized material, stemming and a preparation method thereof, and belongs to the technical field of stemming. Raw materials of the stemming comprise a SiC / C homogenized material. The SiC / C homogenized material is formed by roasting raw materials at the temperature of 600-1500 DEG C, the raw materials comprise aluminum oxide, silicon dioxide, silicon carbide, coke,silicon powder and iron powder, and the SiC / C homogenized material comprises a mullite phase, graphite, silicon carbide whiskers and part of coke. Silicon powder and coke are roasted under the catalytic action of iron powder, silicon carbide whiskers can be easily obtained, the SiC / C homogenized material is more stable in structure, and meanwhile, the erosion resistance and the strength of the homogenized material are improved. After part of coke is graphitized, the oxidation resistance, erosion resistance and mud beating performance of the SiC / C homogenized material are improved. The coke which is not graphitized can keep good air permeability of the stemming.

The invention provides an unmanned aerial vehicle control method and device, an electronic device and a computer readable medium. The unmanned aerial vehicle control method comprises the steps of receiving an instruction of switching an unmanned aerial vehicle from a manual flight mode to an automatic flight mode; adjusting the real-time flight speed of the unmanned aerial vehicle to be within a preset flight speed threshold; determining a route of the unmanned aerial vehicle; and the unmanned aerial vehicle automatically flies according to the adjusted real-time flight speed and the air route. According to the unmanned aerial vehicle control method and device, the electronic device and the computer readable medium, the problem of poor stability caused by attitude angle abrupt change and speed expectation abrupt change when the manual mode of the unmanned aerial vehicle is switched to the automatic mode can be solved, and the flexibility of the air route is improved.

The invention provides a chargeable cell energy feedback detection device being capable of series connection and parallel connection, and aims to provide a voltage and current detection circuit used for an energy feedback chargeable cell being capable of series connection and parallel connection. The technical scheme is as follows: the detection device comprises a monitoring host, a one-chip microcomputer, a PWM rectification / inversion circuit and a series-parallel control module. The monitoring host is connected with the one-chip microcomputer through an RS485 communication module. The series-parallel control module is connected with the one-chip microcomputer through a D / A conversion module and a series-parallel controller. Current and voltage signals collected by the series-parallel control module are sent to the one-chip microcomputer via an A / D conversion module. The series-parallel control module is connected with the power grid through the PWM rectification / inversion circuit. The device has beneficial effects that a chargeable cell detection circuit system can be simplified, the system stability is raised, an impact current to charging and discharging of the chargeable cell is eliminated, and the system is controlled by an upper host and the one-chip microcomputer.

The invention discloses a novel double-color injection molding device. The device comprises an injection molding device main body, a cooling device auxiliary water tank, a double-color injection molding transmission box and an injection molding cooling transmission box; the double-color injection molding transmission box is provided with a color mixing device, a color master batch raw material heating device, a color mixing device control gear set and a color mixing device support mechanism; a circulating water cooling device is provided with a first cooling water condensation pipe, a second cooling water condensation pipe, a first transmission traction wire, a first reverse water baffle plate, a reverse water outlet, a first transmission small pulley, a third cooling water condensation pipe, a second transmission traction wire, a first water inlet baffle plate and a second transmission small pulley; when equipment is used, a motor and a water pump of double-color injection molding equipment can be enlarged, and the ejecting and cooling speed is accelerated; meanwhile, the feeding speed can be accelerated through a large-diameter mixing spiral rod; and a series of work is synchronized for compound actions, so that the molding time is shortened, and the problem of easy generating weak stability of a rotating structure is improved.

The invention relates to the field of high-polymer materials, in particular to a superfine plant powder high-polymer foaming material and a preparation method and application thereof. The high-polymerfoaming material is prepared from, by weight, 90-110 parts of plastics, 20-40 parts of superfine plant powder, 0.5-2 parts of stearic acid, 2-8 parts of foaming agents, 0.5-2 parts of foaming additives, 0.3-1.5 parts of vulcanizing agents and 10-20 parts of superfine plant powder foaming stabilizers. The preparation method includes subjecting a mixture of the raw materials to vulcanized foaming at the temperature 160-170 DEG C. The superfine plant powder and other components are subjected to vulcanized foaming proportionally to obtain high-polymer foaming material; with adding of the superfine plant powder foaming stabilizer, the high-polymer foaming material is stabilized, and thus, high-polymer foaming material with high performance is obtained while special functions of the superfine plant powder play roles and biodegradablity of the high-polymer foaming material is reduced.

The invention provides a remote control system for a transformer, and belongs to the technical field of jack control. Comprising a controller, a communication module, a wireless receiver, a direct-current stabilized power supply, a driver, an electromagnetic pilot valve, a main valve group, a plurality of groups of jacks, a plurality of groups of mounting hook heads, a hook head limiting assembly and a relay box body, the wireless receiver is connected with one end of the controller through the communication module, and the direct-current stabilized power supply is connected with the other end of the controller through the communication module. The control system is convenient to assemble and disassemble, an assembling person and an operating person can be combined into a whole, the assembling person and the disassembling person can control the transformer nearby, the procedure of operation instruction transmission is reduced, various misoperation conditions caused by instruction transmission and unclear understanding are avoided, the efficiency of operation actions of the transformer is greatly improved, and the operation efficiency of the transformer is improved. Therefore, the assembling and disassembling efficiency and the working safety are improved.

The invention discloses a preparation method of a black waxy corn beverage, which comprises the following steps: (1) powdering and sieving dry black waxy corn granules, weighing black waxy corn flour, adding purified water and alpha-amylase, adjusting the pH value, and liquefying in a water bath kettle; (2) carrying out enzyme deactivation treatment after liquefaction is finished; (3) adding saccharifying enzyme into the enzymatic hydrolysate obtained in the step (2), adjusting the pH value, and saccharifying in a water bath kettle; (4) performing enzyme deactivation treatment after saccharification is finished; and (5) centrifuging, taking supernate, seasoning, filling and sterilizing to obtain the black waxy corn beverage. According to the preparation method, the dry black waxy corn granules are directly ground into powder to serve as a raw material, operation is simple, the specific fragrance of corn is reserved to the maximum extent, and the prepared black waxy corn beverage is rich in nutrition, attractive in color, uniform in tissue and good in taste; the black waxy corn seed coats are black purple and rich in anthocyanin bioactive components, so that the obtained black waxy corn beverage has the effects of resisting oxidation, reducing blood pressure, reducing blood fat and the like.

The invention discloses a method for lowering internal stress of a corrugated pipe. The method comprises the following steps of 1, fixing the corrugated pipe into a vibrating clamp assembly, and fixing a vibrating clamp to a vibrating device; and making the vibrating device vibrate for a preset period of time at the preset frequency, so that the corrugated pipe with the internal stress lowered is obtained. By means of the method, the internal stress of the corrugated pipe can be remarkably lowered; meanwhile, other properties, such as rigidity and hardness, of a material are not affected; the defect that internal stress of a refrigerator corrugated pipe used in the infrared detection field is released only through natural aging, namely long-time storage, can be effectively overcome; the problem that corrugated-pipe type self-adjustment refrigerators are generally poor in stability can be well solved; and the method is low in process difficulty and easy to operate.

The invention discloses a double-stator excitation full-degree-of-freedom bearingless motor and an active control method thereof and belongs to the field of motor design and control. The two stators are arranged along the rotating shaft; each stator comprises a stator iron core and a stator winding arranged on the stator iron core; the stator winding is of a suspension winding and torque winding separation structure or a suspension and torque integrated winding structure; the rotor disc is located between the two stators and comprises a rotor iron core and a permanent magnet module which is attached to the rotor iron core in a surface-mounted mode, and the permanent magnet module generates a rotor permanent magnetic field; during working, the stator winding generates a first armature magnetic field and a second armature magnetic field; the difference between the first armature magnetic field and the rotor permanent magnetic field is a pair of poles for realizing radial four-degree-of-freedom active control; and the second armature magnetic field and the rotor permanent magnet magnetic field have the same number of pole pairs and are used for realizing axial two-degree-of-freedom active control. According to the motor, full-degree-of-freedom active control of the bearingless motor can be realized, system stability is improved, and the system structure is simplified.

The invention relates to a super junction semiconductor device and a forming method thereof. The forming method comprises the following steps of: performing an epitaxial growth process on a substrate with a first doping type for multiple times to form a plurality of sub epitaxial layers which are arranged in an overlapped manner; first doping type ion implantation is executed to form an interface compensation region located on the upper portion of a top sub-epitaxial layer in the top sub-epitaxial layer, the interface compensation region is close to an interface between the multiple sub-epitaxial layers, and the problems that the impedance between layers in the multiple sub-epitaxial layers is higher than a target value and the stability is poor can be solved; the charge balance of the N column and the P column is facilitated, and the voltage resistance and the yield of the device are improved. The super-junction semiconductor device provided by the invention is formed by adopting the forming method, the impedance between layers in the plurality of sub epitaxial layers is reduced, and the stability is improved, so that the voltage resistance and the yield of the super-junction semiconductor device are improved.

The invention relates to the technical field of edible and medicinal fungus strain preparation, and discloses an excellent tremella sanguinea strain cultivation method. The method comprises the following steps of 1, obtaining a mother strain; 2, preparing a second-generation mother strain; 3, preparing an original strain; and 4, producing a cultivated strain. The method has the following advantages and effects that a complex of tremella sanguinea hyphae and stereum rugosum is originally adopted as a tremella sanguinea strain, the cultivated strain is obtained through the original cultivation method, the inoculated tremella sanguinea output rate during tremella sanguinea cultivation is remarkably improved, tremella sanguinea grows well, the tremella sanguinea yield is remarkably increased,and the method is of great significance to large-scale cultivation and industrialization of the tremella sanguinea.

The present invention relates to a kind of poly 4-methylpentene and SiO 2 A microsphere composite film and a preparation method thereof, the preparation method comprising: (1) heating and stirring poly-4-methylpentene (TPX) and a solvent at 0-90° C. to dissolve to obtain a poly-4-methylpentene solution; (2) Add SiO to the resulting poly-4-methylpentene solution 2 Microspheres, get TPX‑SiO 2 Microsphere composite solution; (3) dripping the obtained TPX‑SiO on the substrate 2 After the microsphere composite solution is placed in a sealed container, after the solvent evaporates, the poly-4-methylpentene and SiO 2 Microsphere composite film.

The invention discloses an accurate positioning repositioning and fixing forceps for trauma orthopedics, which comprises a fixing block and inlay one and inlay two which are symmetrically hinged and arranged on one side of the fixing block, and the first inlay and the second inlay are arranged through respectively. There are a fixed column one and a fixed column two, the fixed column one and the fixed column two are fixedly connected with the inlay one and the inlay two respectively, and the one ends of the fixed column one and the fixed column two are arranged in parallel on the fixed block one through bearings On the other side, the other ends of the fixed column 1 and the fixed column 2 are respectively provided with a gear 1 and a gear 2, and the gear 1 and the gear 2 mesh with each other; the front ends of the inlay 1 and the inlay 2 are hingedly provided with clamping chain. In the present invention, when the inlay 1 and the inlay 2 are opened, and when the front ends of the inlay 1 and the inlay 2 are opened too much due to an operation error by the medical staff, the multi-rectangular fixed block of the clamping chain will stretch the elastic band 2 and the elastic Turn the belt one to the inside to avoid damage to other soft tissues and cause injury to the patient.

The invention discloses an epoxy modified polyurethane emulsion and a preparation method thereof. The epoxy modified polyurethane emulsion comprises a prepolymer and deionized water, wherein the prepolymer comprises the following substances in parts by weight; the parts by weight of the deionized water is 3-5 times more than the total weight of the prepolymer. The preparation method comprises the following steps of: (1) firstly adding polypropylene glycol, isophorone diisocyanate and tin catalysts to a reaction kettle; (2) adding epoxide resin and a trace amount of the tin catalysts, and then continuously reacting till NCO% achieves a theoretical value; (3) adding dimethylolpropionic acid, and reacting till NCO% achieves the theoretical value; (4) adding acetone to regulate viscosity, and then adding triethylamine to obtain an epoxy modified polyurethane prepolymer; (5) slowly adding deionized water for emulsification to obtain the epoxy modified polyurethane emulsion. The emulsion prepared through the method disclosed by the invention has the advantages of smaller granule, uniformity in granule size distribution, good film-forming property and better high-low temperature stability and mechanical stability.

The invention discloses a high-beta-cyfluthrin water-emulsion composition for preventing and treating peach borer worm and a preparation method thereof. The composition is prepared from the following components in parts by weight: 2.5-2.8 parts of beta-cyfluthrin, 2.0-2.5 parts of three-carbon alcohol ethoxylate, 6.0-6.5 parts of phenylethylphenol polyoxyethylene ether, 10.0-11.0 parts of ethanol, 0.2-0.3 parts of xanthan gum, 5.0-6.0 parts of ethylene glycol and deionized water 74.3‑70.9 parts. The present invention reduces the amount of organic solvent in the pesticide preparation by 70%, and improves the problem of poor stability of beta-cyfluthrin water-emulsion. The diameter range is 1.5‑3.5um). At the same time, the surface tension of the composition diluted 3000 times is 53.40mN / m, which is significantly lower than that of similar products, which is beneficial to the adhesion on the target surface and improves the utilization rate of pesticides.

The invention belongs to the technical field of energy routers, and discloses a multi-port energy storage energy router, which comprises a multi-port energy router topology circuit, a control unit and an energy storage unit. The energy router topology circuit is provided with double direct current buses and an alternating current bus group, and is electrically connected with the energy storage unit; and the energy router topology circuit is electrically connected with a load and a power generation system through a plurality of access ports, the control unit is in communication connection with the energy router topology circuit, the energy storage unit and the power generation system, and the control unit is in communication connection with a dispatching center. The problems that in the prior art, current loss is large, heating is serious, the manufacturing cost is high, the port type is too single, functionality is poor, the energy supply type is single, stability is poor, and safety is low are solved.