49results about How to "Stable and durable" patented technology

There is provided a framework for a construction enclosure system comprising a plurality of brackets, a plurality of rigid elongated frame members, and a plurality of reinforcement members. The brackets are adapted to be attached to a structure under construction. The frame members are adapted to be retained by the brackets in a desired spatial relationship with an outer face of the structure. The frame members are adapted to retain one or more sheet-like enclosure panels. The reinforcement members are adapted to be secured against respective frame members to increase the rigidity of such frame members. One embodiment of the invention provides a frame member comprising a pair of elongated bodies adapted to be retained in a mated configuration to cooperatively define first and second channels therebetween, wherein each channel is adapted to retain one edge portion of a sheet-like enclosure panel.

The invention provides a method for constructing a super-hydrophilic layer of a polyvinylidene fluoride hollow fiber ultrafiltration membrane and belongs to the technical field of materials. The method comprises the following steps of: generating C-C unsaturated bonds, hydroxyls and carboxyls on the surface of the polyvinylidene fluoride (PVDF) ultrafiltration membrane through pretreatment by using the mixed solution of a strong base and potassium permanganate, respectively grafting hydrophilic acrylic acid and alcohol monomers to the surface of the PVDF ultrafiltration membrane by free radical grafting reaction and esterification reaction under the actions of an inorganic acidic catalyst and an organic peroxide initiator, wherein a stable super-hydrophilic layer is constructued on the surface of the membrane under the synergic action of the two monomers to obstruct the adsorption and deposition of organic matters on the surface of the membrane efficiently. Consequently, the PVDF hollow fiber ultrafiltration membrane is provided with high resistance to organic matter pollution and super hydrophilicity; after super hydrophilic modification treatment, the water flux of the PVDF hollow fiber ultrafiltration membrane is 100-200% higher than before.

A metal oxide thin film structure for a solid oxide fuel cell, prepared by a method comprising dispersing a metal oxide nanopowder in a metal oxide salt solution and subsequent coating of the resulting metal oxide powder dispersed sol and the metal oxide salt solution on a porous substrate, has excellent gas impermeability, excellent phase stability, and is devoid of cracks or pinholes.

The invention relates to the technical field of optical fiber manufacture, in particular to a polyimide coated optical fiber and a machining process thereof. The polyimide coated optical fiber comprises a bare optical fiber and a coating layer, the diameter of the bare optical fiber ranges from 80 micrometers to 660 micrometers, the coating layer externally coats the bare optical fiber, the bare optical fiber comprises a quartz core layer and a quartz cladding layer externally surrounding the quartz core layer, a polyimide coating layer externally coats the quartz cladding layer, and the thickness of a single edge of the polyimide coating layer ranges from 10 micrometers to 25 micrometers. Polyimide materials coat the surface of the bare optical fiber, and compared with a conventional coated optical fiber, the polyimide coated optical fiber has the advantages of high temperature resistance, aging resistance, radiation resistance, stability, durability and the like and can be used for a long time in a high-temperature hostile environment for a long time. The diameter of the coating layer can be accurately controlled, deviation of the diameter is + / -3 micrometers, and the concentricity of the coating layer and the fiber cladding layer is smaller than or equal to 5.

The invention discloses a method for preparing a superhydrophobic-antibacterial-ultraviolet protective polyester fiber cloth through immersion and sedimentation. The method comprises inletting nitrogen into N-hydroxymethyl acrylamide aqueous solution, increasing the temperature, then adding in swelled polyester fiber cloth and benzoyl peroxide benzene solution, stirring and refluxing the mixture for grafting reaction, extracting and washing reaction products, performing methanol extraction, and drying the extracted materials to a constant weight to obtain surface-grafted polymer-modified polyester fiber cloth; fully dissolving chitosan powder in hydrochloric acid solution, dropwise adding in sodium hydroxide solution while stirring until reaching a neutral state, then uniformly blending innanometer compound antibacterial agents, immersing the surface-grafted polymer-modified polyester fiber cloth, then filtering out surface moisture and drying the immersed surface-grafted polymer-modified polyester fiber cloth to obtain a chitosan-nanometer compound antibacterial agent-polyester fiber cloth; mixing tetrahydrofuran with hexadecyltrimethyoxysilane, then magnetically stirring in titanium dioxide nanoparticles, adding in polydimethoxysilane, hardening agent and the chitosan-nanometer compound antibacterial agent-polyester fiber cloth, and performing stirring and then drying to obtain the superhydrophobic-antibacterial-ultraviolet protective polyester fiber cloth.

The invention discloses a plastic shell structure. The plastic shell structure comprises a plastic shell and a PET composite decorative film attached to the inner side surface of the plastic shell. The PET composite decorative film comprises a PET substrate, and the PET substrate comprises a fitting surface and a decoration surface. The decoration surface of the PET substrate is provided with an ink printing layer, a UV grain layer and an optical coating layer in sequence; the optical coating layer of the PET composite decorative film is provided with an LDS antenna. The invention also discloses a manufacturing method of a plastic shell structure. The large-area waterproof and dustproof antenna manufactured in the plastic shell solves the industrial problems that the surface of the fragmented and dispersive electronic component assembly structures in a traditional 3C electronic product plastic shell has no enough space to design a 5G signal antenna, and when the antenna is made at thesurface of the plastic shell, the product appearance decoration effect is influenced, the antenna is easy to be damaged to cause whole damaging of the product and difficult to maintain. The plastic shell structure has glass or ceramic appearance effects, is light and fashion and novel in appearance, and is anti-fall and waterproof.

It is one aspect of the present invention to provide a batting training apparatus for simulation ball trajectory prior to, during, and after the ball is impacted by a piece of sporting equipment such as a baseball bat. In some embodiments, the apparatus comprises a ball connected to a rotating tab wherein the tab is secured to a bearing configured to rotate within a bearing housing. The bearing housing may be mounted to a vertical support structure such as a pole or post.

The invention relates to an industrial gas synergist. The industrial gas synergist is prepared by 80 percent of carbon alkane (C5H12), 4 percent of n-propanol (C3H80), 3.7 percent of hexane (C6H14), 0.8 percent of cyclohexane (C6H12), 8 percent of Mobil (isoparaffin solvent), 3.5 percent of kerosene (CH3(CH2)nCH3) and 0.025 percent of paint. The preparation method of the industrial gas synergist comprises the following steps: taking the carbon alkane (C5H12); adding n-propanol (C3H80) and Mobil (isoparaffin solvent) and stirring for 3 hours; then, adding the hexane (C6H14) and the cyclohexane(C6H12) and suitably sealing for 8 hours; controlling temperature to be about 30 DEG C; adding the kerosene (CH3(CH2)nCH3) and stirring for 1 hour; and finally adding the paint to prepare a finished product. The industrial gas synergist is innoxious and noncorrosive and has special efficacy, such as combustion supporting, polymerization suppression, catalysis, cracking, and the like.

The invention discloses banishing essence, which consists of water, propylene glycol, mineral oil, cetearyl alcohol, arbutin, isopropyl palmitate, polydimethylsiloxane, polysorbate-60, titanium dioxide, sorbitan distearate, xanthan gum, methyl hydroxybenzoate, propylhydroxybenzoate and essence. The banishing essence has an extremely good treatment effect on chloasma, freckles, taches noir, sunburn and pigmentation which is caused by medicinal allergy.

The present invention provides a meningococcal conjugate vaccine for groups A, C, Y and W135, which is a tetravalent conjugate vaccine comprising polysaccharide-protein conjugates obtained by respectively conjugating a capsular polysaccharide of Neisseria meningitides groups A, C, Y and W135 to a outer membrane vesicle protein selected from a group consisting of Neisseria meningitides group B serotypes 4 and 15 outer membrane vesicle proteins. The meningococcal conjugate vaccine provided by the present invention may effectively avoid the risk of affecting the immune response to vaccines resulting from immune tolerance and competition between antigenic sites existing in multivalent conjugate vaccines prepared from a single carrier protein; the meningococcal conjugate vaccine provided by the present invention may avoid the safety risk of allergic reactions, toxicity reversion and the like which exist in conjugate vaccines prepared by using TT and DT as carrier proteins; and the meningococcal conjugate vaccine provided by the present invention may enhance immunity to Neisseria meningitides group A and provide a bactericidal antibody having relatively extensive protective effect against Neisseria meningitides group B. Meanwhile, the present invention provides a complete production process of a meningococcal conjugate vaccine for groups A, C, Y and W135, which is applicable to large-scale production. Studies have demonstrated that the present vaccine has good immunogenicity, reliable safety and stable immunity persistence.

It is one aspect of the present invention to provide a batting training apparatus for simulating ball trajectory prior to, during, and after the ball is impacted by a piece of sporting equipment such as a baseball bat. In some embodiments, the apparatus comprises a ball connected to a rotating tab wherein the tab is secured to a bearing configured to rotate within a bearing housing. The bearing housing may be mounted to a vertical support structure such as a pole or post.

The invention relates to the field of air conditioners and accessories thereof, in particular to a micro-channel pipeline heat exchanger and an electric motor coach heat pump air conditioning system. The micro-channel pipeline heat exchanger is formed by a collecting pipe, micro-channel flat pipes and a fin. The collecting pipe is a hollow circular pipe with two sealed ends; the micro-channel flat pipes are in linear shapes internally provided with micro-channels arrayed and distributed according to a linear array; the fin is in a regular folding line shape; the micro-channel flat pipes are overlapped up and down and welded on the collecting pipe in an equidistant way; each micro-channel flat pipe and a horizontal plane form an angle of 30 to 45 degrees; the fin is welded between the micro-channel flat pipes. The micro-channel pipeline heat exchanger provided by the inventions is designed according to an air outlet way of a coach heat air conditioner and a flow field of air when a centrifugal fan rotates so as to have a function of effectively removing condensed water; besides, the micro-channel pipeline heat exchanger adopts aluminum parts, so that the electrocorrosion phenomenon is avoided after integral welding; after the micro-channel pipeline heat exchanger is installed on the electric motor coach heat pump air conditioning system, the system is ensured to be used stably and durably.

The invention discloses slip-resistant glaze, a preparation method thereof and a preparation method of a slip-resistant glaze brick. The slip-resistant glaze is prepared from, by mass, 40-60% of silica, 8-18% of sodium hydroxide, 10-20% of aluminum oxide, 1-3% of di-iron trioxide, 1-8% of calcium oxide, 1-5% of magnesium oxide, 3-8% of potassium oxide, 1-5% of sodium oxide, 2-8% of zinc oxide and5-15% of barium oxide. The preparation method of the slip-resistant glaze brick comprises the following steps that B001, the slip-resistant glaze is prepared; B002, a ceramic brick green body is prepared, and the surface of the ceramic brick green body is coated and printed with a glaze layer having a decorative effect; B003, the slip-resistant glaze in the step B001 is prepared into gloze slurry,the silk screen plate printing slip-resistant glaze slurry is applied to the surface of the ceramic brick green body in the step B002; B004, the ceramic brick body of step B003 is put into heat in akiln and is heated and burnt, edging is graded after cooling, and the slip-resistant glaze brick is obtained.

The invention relates to a preparation method of a primary-taste modified rice fresh keeping agent material, and belongs to the technical field of food additive materials. The technical scheme adoptedby the invention lies in that the primary-taste modified rice fresh keeping agent material is prepared by using rice husks as raw materials; the rice husks contain rich antioxidation peptide, the rice husks are subjected to enzymolysis and collection, the rice husks are coated with essential oil, and a microcapsule structure is formed; the microcapsule structure can effectively relieve the releasing efficiency of the essential oil, so that the essential oil material has excellent slow release performance; in the storage course, due to massive release of the essential oil at the initial stage,after the essential oil disappears at the later stage, due to the effects of the antioxidation peptide, the fresh keeping agent material continues forming antioxygenic properties, so that the antioxidation durability of the rice fresh keeping agent material can be effectively improved; an adsorbent material is prepared by using the rice husks as raw materials, so that when the adsorbent materialis added to fresh keeping agent microspheres, the adsorbent material can effectively adsorb surplus essential oil smell; and besides, excellent pore canal structure of the fresh keeping agent materialcan be maintained, and the releasing properties and the durability of the fresh keeping agent material can be stable.

The invention discloses a thin-wall type house structure and construction method thereof, and belongs to the field of buildings. An existing house structure is heavy in weight, high in manufacturing cost, high in processing difficulty and complex in installation process. The house structure disclosed by the invention comprises a main frame body and a supporting piece, wherein the main frame body comprises two cross beams and two stand columns, the two cross beams are obliquely arranged in parallel, the high ends of the two cross beams are connected, the lower ends of the two cross beams are correspondingly provided with vertical columns, and each stand column is fixedly connected with the end part of the corresponding cross beam; the cross beams are equal-cross-section bodies, and the stand columns are equal-cross-section bodies; and the supporting piece comprises a beam haunching piece and an end angle haunching piece, the beam haunching piece is arranged at the high ends of the two cross beams, and the end angle haunching piece is arranged between each cross beam and the corresponding stand column.

The inventio discloses a knee arthroscope joint distraction device for orthopedics department. The knee arthroscope joint distraction device includes an extension column in a hollow column shape, a control board capable of swinging up and down is arranged at the front end of the extension column, and distraction heads capable of moving up and down and swing front and back are arranged at the top ends and the bottom ends of the control board correspondingly; a disc-shaped rotating disc is rotatably connected to the outer circumference of the rear end of the extension column, the rear end surface of the extension column is fixedly connected with a pointer plate, the rotating disc is hinged to the inner side of an annular positioning ring, inserting plates which can move back and forth are arranged at the left and right ends of the positioning ring, and clamping plates capable of swing left and right are hinged to the front ends of the inserting plates; the bottom ends of the clamping plates are connected by clamping straps; and the left ends and the right ends of the clamping straps extend out of the clamping plates and connected by velcros. The problems that distraction devices havehigh excessively requirements on incisions and cannot effectively distract a knee joint of a patient for a long time in current knee arthroscopic surgery are effectively solved.

The invention discloses an inner hole pressing and positioning mechanism, and belongs to the technical field of workpiece positioning. The inner hole pressing and positioning mechanism comprises a support leg structure, a workbench structure and a positioning and pressing structure, the support leg structure is arranged on the horizontal plane, the workbench structure is arranged on the support leg structure, and the positioning and pressing structure is arranged at the center of the workbench structure; and the positioning and clamping structure is provided with a telescopic fixing structureand a power structure, and the power structure is installed at the lower end of the telescopic fixing structure. According to the inner hole pressing and positioning mechanism, an inner hole of a workpiece is positioned and pressed through an arranged telescopic fixing structure, pressing and loosening are completed under the action of the power structure, and therefore the inner hole pressing andpositioning mechanism is high in workpiece positioning and pressing stability and convenient to operate, meanwhile, dust and chippings can be prevented from leaking into the inner hole pressing and positioning mechanism in the positioning and pressing process, abrasion is low, and the service life of staff is long.

The invention discloses a high density polyurethane foam. The polyurethane foam is prepared from the following components in parts by weight: 55-65 parts of amino-terminated hyperbranched polyurethane, 8-16 parts of a 2,3-quinolindicarboxylic acid / 2,4-diamino-6-diallylamino-1,3,5-triazine polycondensate, 3-5 parts of 1,2-epoxy-4-vinyl cyclohexane, 0.5-1 part of a foam stabilizer, 5-10 parts of a foaming agent and 1-2 parts of an initiator. The invention also discloses a preparation method of the high-density polyurethane foam. The high-density polyurethane foam disclosed by the invention is high in density, sufficient in rebound resilience and compression resistance, and good in durability, stability, aging resistance and flame retardance.

The present invention relates to a beverage product comprising a container, a liquid and a dairy foam on top of the liquid covering its surface. The dairy foam comprises 9Q to about 100 wt% milk and milk fat, 0-10 wt% sweetener, and from 0.1 to about 1,5 wtl, preferably from 0.1 to about 1,0 wt% of a stabilizer. According to the invention the dairy foam has been applied first to an inner wall of the container along the entire circumference of said container before filling up the complete surface of the liquid so that it sticks to said inner wall. The present invention also relates to a method for manufacturing such a beverage product.

The invention provides a preparation method of red pitaya wine. Fresh red pitayas are selected, and through blanching, mashing, deodorization treatment through alcohol, extraction, rough filtering, clarification, dilution and blending, the red pitaya wine is prepared. The red pitaya wine prepared by adopting the preparation method has bright color and lustre, the fruit aroma coordinates with the wine aroma, the flavor is good, the sweet and sour taste is suitable, and the red pitaya wine has a typical red pitaya style; moreover, according to the prepared red pitaya wine, the betanin content ishigher, much betanin of the red pitayas are preserved, and the red pitaya wine has the efficacy of resisting fatigue, enhancing the immunity and the like, so that the value of the red pitayas is further improved.

The invention relates to a preparation method of a wrinkled fabric. The crescent-shaped composite fiber is used as a crepe raw material, and the crescent-shaped composite fiber and cotton fiber are used as a crepe weft raw material, which is interwoven into a plain weave and then subjected to relaxation heat treatment to obtain a wrinkled fabric; The twist direction of the warp and crepe weft is opposite; the preparation process of the crescent-shaped composite fiber is as follows: in the process of preparing circular side-by-side composite fibers from PET and PTT according to the FDY process, the spinneret holes on the spinneret plate are changed from circular to Crescent shape, cooled by circular air blowing, and controlling the arrangement of spinneret holes to meet certain conditions, to obtain crescent-shaped composite fibers; when preparing side-by-side composite fibers, PET melt and PTT melt are distributed from the same spinneret The spinneret m and the spinneret n are extruded; the spinneret m and the spinneret n are crescent-shaped spinneret holes; the contact surface of PET melt and PTT melt flows in the guide holes of each spinneret hole parallel to each other. The invention adopts a simple method to prepare a wrinkled fabric with stable quality and easy processing.

The invention discloses an enzyme-modified anticoagulant valve and a preparation method thereof. The preparation method is as follows: (1) put the biological valve material in the mixed solution of polyphenol compound and soluble metal salt, react at 20-40°C for 5-60 minutes, take it out and wash it; (2) use the product obtained in step (1) as Substrate, after repeating step (1) 1 to 20 times, take it out, wash it and dry it at room temperature; (3) place the product obtained in step (2) in a glutaraldehyde solution with a concentration of 0.1 to 2.5% and activate it for 2 to 10 hours , placed in an enzyme solution with a concentration of 0.01-10 mg / mL that can use glucose to produce hydrogen peroxide, activated at 1-15°C for 4-12 hours, then taken out and washed. The present invention utilizes the characteristics of the valve itself to modify the polyphenol-metal chelate and glucose oxidase to easily and efficiently meet the requirement of long-acting anticoagulation in the valve body and reduce the failure rate of the valve.

The invention belongs to the field of pharmaceutical analysis, and discloses a method for detecting related substances in 4-oxime methyl-1-naphthoic acid. The method comprises the following steps: preparing a reference substance solution and a test solution, determining chromatograms of the reference substance solution and the test solution by using high performance liquid chromatography, and determining the content of the related substances according to a main component self-contrast method. The detection method has the advantages of high specificity, high separation degree, excellent linear relation, high sensitivity, short analysis time and the like, can meet the detection requirements of related substances in 4-oxime methyl-1-naphthoic acid, and is suitable for popularization and application.

An electrical jack connector and fabrication method thereof. The connector includes an resilient conductive leaf spring roll (1) which mates with a plug, a conductive inner sleeve (2) and a conductive outer sleeve (3) sleeved outside of the roll from inside to outside. Bending and protruding terminals of the resilient conductive leaf spring roll (1), which protrude out of two ends of the conductive inner sleeve (2), are fixedly clamped between a through-hole in the conductive outer sleeve (3) and the outside surface of the conductive inner sleeve (2).

The invention provides a preparation method of red pitaya wine. Fresh pitaya is selected, blanched, beaten, and deodorized with alcohol, and then extracted, coarsely filtered, clarified, diluted, and prepared to prepare the pitaya wine. The red heart dragon fruit wine prepared by the preparation method of the invention has bright color, harmonious fruit aroma and wine aroma, good flavor, suitable sweet and sour, and has a typical dragon fruit style. Moreover, the red pitaya wine prepared by the present invention has a higher betaine content, retains more betaine in the red pitaya, has anti-fatigue, improves immunity and other effects, and further improves the value of the pitaya.

An orthopedic knee arthroscopic joint spreader, comprising a hollow cylindrical extension column, the front end of the extension column is provided with a control panel that can swing up and down, and the top and bottom ends of the control panel are provided with a vertically movable, front and back swing The extension head; the outer circumference of the rear end of the extension column is rotatably connected with a disc-shaped rotating disk, the rear end surface of the extension column is fixedly connected with a pointer plate, and the rotating disk is hinged on the inner side of the ring-shaped positioning ring. The left and right ends of the positioning ring are provided with inserting plates that can move back and forth. The front ends of the inserting plates are hinged with clamping plates that can swing left and right. The bottom ends of the clamping plates are connected by a clamping belt. The left and right ends of the clamping belt The clamping plate protrudes and attaches with Velcro. The invention effectively solves the problem that the spreader has too high requirements on the incision in the current knee arthroscopic operation, and the spreader cannot effectively stretch the patient's knee joint for a long time.

The invention discloses an antitheft fingerprint lock capable of preserving evidences. The antitheft fingerprint lock capable of preserving the evidences is characterized in that a hidden hole is formed in the bottom of a front panel and comprises a mechanical lock, a touch part, a first micro-switch, a first trigger module, a single-chip microcomputer, a miniature camera and a storage module. The mechanical lock is provided with an inner lock cylinder, and an inclined surface is arranged at the axial end of the inner lock cylinder; the touch part is matched with the inclined surface in an abutting mode; the first micro-switch corresponds to the touch part in position and is controlled by the touch part; the first trigger module is electrically connected to the first micro-switch; the single-chip microcomputer generates corresponding photographing signals according to first trigger signals and is electrically connected to a control unit through a data line; the miniature camera is used for receiving the photographing signals and is controlled by the single-chip microcomputer; the storage module is used for storing the picture data of the miniature camera and is connected to the miniature camera through a data line. According to the invention, the evidences can be effectively preserved for thieves damaging fingerprint locks through the high-technology means and committing a burglary.

The invention discloses an integrated desk-chair structure, which can realize stable resetting of a seat plate and folding of a desk plate. A seat plate resetting mechanism comprises a supporting seatarranged on the front side of a support, a mounting seat arranged on the seat plate and hinged to the supporting seat, an air spring with the two ends hinged to the supporting seat and the mounting seat, and a first torsional spring horizontally arranged on the supporting seat and having two ends fixedly arranged on the supporting seat and the mounting seat. A desk plate folding mechanism comprises a fixing base arranged on the rear side of the support, supporting rods arranged on the left side and the right side of the desk plate, a second torsional spring horizontally arranged on the fixingbase, a ratchet wheel with a ratchet wheel tooth, a pawl located below the ratchet wheel and rotationally arranged on the fixing base, an acting wheel with a tooth part, and a fixed shaft horizontally and fixedly arranged on the supporting rods and the ratchet wheel. The front ends of the supporting rods, the ratchet wheel and the acting wheel are coaxially and rotationally arranged at the top end of the fixing seat; the upper and lower ends of the second torsional spring are connected with the front side of the pawl and the fixing seat; the acting wheel is provided with an arc-shaped hole into which the fixed shaft is inserted; the tooth top surface of the tooth part is higher than the ratchet teeth; when the desk plate is placed horizontally, the pawl is clamped in the ratchet wheel andthe tooth groove of the acting wheel.