480results about How to "Payload" patented technology

The invention relates to a method and its system which is utilized the automobile vibration energy to piezoelectric generate electricity. The piezoelectric device is set in the automobile suspension system, utilized the vibration energy to generate electric energy, and used as an electric supply to store and utilize. The system includes that no less than one piezoelectric device set in the automobile suspension system and used to transform the vibration energy to electric energy; an electric power exchange system, used to adjust and transform the electric energy produced by the piezoelectric device, and used the electric energy to the energy storage device or final power utilization load; no less than one energy storage device or final power utilization load. The piezoelectric device is connected to the electric power exchange device, and it is respectively connected to the energy storage device or final power utilization load. The invention supplies new energy source for the vehicle, especially for the electric automobile or mixing dynamic automobile. The gained electric energy can be directly used for the dynamic electric source, so that effectively increase the continuous driving mileage of the vehicle. Proper control strategy is adopted. And the invention also possesses the function of semi-active vibration reduction.

The invention relates to a sandwich structure wave-absorbing composite material and a preparation method thereof, an integrated sandwich structure comprises an intermediate layer, an upper skin and alower skin, the intermediate layer is a honeycomb material filled with carbon nanotube/cellulose wave-absorbing foam, the upper skin is a quartz fiber cloth reinforced resin material having electromagnetic wave transmission characteristics, and the lower skin is a carbon fiber cloth-reinforced resin material having electromagnetic wave reflection characteristics. Specifically, the preparation method is carried out according to the following steps: 1. the intermediate layer, namely the honeycomb material filled with the carbon nanotube/cellulose wave-absorbing foam is prepared by a freeze-drying method; 2. the upper kin and the lower skin are prepared by impregnating resin with quartz fiber cloth/carbon fiber cloth; and 3. the intermediate wave-absorbing layer is compounded with the upper kin and the lower skin. The sandwich structure wave-absorbing composite material prepared by the method can replace existing wave-absorbing materials, and is widely used in aircrafts, ground weapon equipment, surface ships and other parts that have stealth requirements for electromagnetic waves.

The invention discloses a testing machine for testing a crane scale and a method for disassembling and assembling a weight thereof. The testing machine for testing a crane scale comprises a position adjustment control device, a rack, a weight, a weight drive mechanism, a weight swing mechanism, a suspender and an anti-swing mechanism, wherein the weight swing mechanism comprises a weight swing mechanism shell, a motor No.3, a stop dog, a worm, a worm gear and a weight swing mechanism driving part, the worm and the weight swing mechanism driving part are installed in the weight swing mechanismshell and are in rotating connection, the worm gear is sleeved on the weight swing mechanism driving part and is fixedly connected with the weight swing mechanism driving part, and the worm and the worm gear are engaged with each other, the output shaft of the motor No.3 fixed on the weight swing mechanism shell is fixedly connected with the worm, the stop dog is installed in a through groove of the weight swing mechanism driving part, the weight swing mechanism is installed at the center of a middle cross beam of the rack, the weight swing mechanism driving part is sleeved on the suspender, and a through hole on the weight swing mechanism driving part is in clearance fit with the suspender. The invention also provides a method for disassembling and assembling the weight in the testing machine.

The invention discloses a method for preparing a nanometer photocatalyst material supported embedded composite film. The method comprises the following steps: dissolving an organic polymer base film material, a pore-forming agent and a nanometer catalyst in a solvent, stirring and standing to prepare a casting film solution; dispersing the nanometer photocatalyst in the solvent to obtain dispersion liquid, spreading the dispersion liquid on a plate to prepare a spreading solution, and drying the spreading solution to obtain a spreading film; and covering the spreading film with the casting film solution, scraping a liquid film by utilizing a film scraper, immersing the scraped liquid film in a constant temperature gel bath, and curing the liquid film to prepare the nanometer photocatalyst material supported embedded composite film. The invention also provides the nanometer photocatalyst material supported embedded composite film and application thereof. According to the method, a nanometer photocatalyst coating is uniformly, effectively, stably and firmly supported on the surface of the embedded composite film. Moreover, according to the composite film, the removal rate of pollutants is effectively improved, and film pollution is reduced.

The invention relates to a hyaluronic acid-modified amphipathic chitosan derivative carrier with tumor microenvironment specificity drug release effect. The hyaluronic acid-modified amphipathic chitosan derivative carrier is characterized in that firstly, a hydrophilic group is introduced into a chitosan skeleton; then, a hydrophobic group is introduced into a specifically degradable link arm containing disulfide bonds, so as to realize the amphipathic function; the amphipathic derivative is assembled into nanomicelle by self in a waterborne medium, and is further modified by a charge adsorbing principle to target the molecular hyaluronic acid; the nanomicelle can effectively load an anti-tumor drug, and the hyaluronic acid is targeted to the tumor microstructure and then is degraded by hyaluronic acid enzyme in focus cells, so that the drug can be quickly released from the nanomicelle to act on the focal part, thereby obviously improving the concentration, therapy effect and biological utilization degree of free drug on the focal part. The hyaluronic acid-modified amphipathic chitosan derivative carrier has the advantages that the carrier which carries pharmaceutical activity or pharmacological activity molecules can be applied to internal injection of blood vessels or muscles or oral administration, so as to obviously improve the anti-tumor activity of drug; the preparation method is simple, the technology is matured, and the preparation method is suitable for large-scale production.

The invention relates to a dual-sensitivity amphiphilic polysaccharide-doxorubicin conjugate.According to the conjugate, hydrophobic antitumor drug doxorubicin is introduced in a polysaccharide framework through a connecting arm containing a disulfide bond and a hydrazone bond, so that the polysaccharide-doxorubicin conjugate has an amphiphilic property, can be self-assembled into a nano-micelle in water and directly used for tumor treatment, and can also be physically loaded with an antitumor drug to be used for antitumor treatment.The conjugate is mainly characterized in that after the nano-micelle reaches a focus, the disulfide bond in the connecting arm can be degraded specifically by high-concentration reduction substances in focus cells, and meanwhile the hydrazone bond in the connecting arm can be degraded in a special pH environment of the focus, so that the micelle is degraded, the drug is quickly released, and the treatment effect is improved; the antitumor drug is loaded in two modes of chemical conjugation and physical package, and therefore the joint treatment effect is achieved.The polysaccharide conjugate and a pharmaceutical composition can be used for injection or oral administration or external administration, can remarkably improve antitumor activity, and provides a new thought for development of the antitumor drug.

The invention discloses a distributed generation-based grid connection transition operation mode coordination comprehensive protection method. When the DG capacity is continuously increased, the short-circuit current level is improved, the DG is changed from a "pure load" into a "small power supply", and a problem that conventional protection and switching breakpoints cannot meet the transition condition is solved. Based on the conventional protection and the switching breakpoints, the scheme provided by the invention performs continuous matching with a primary operation model and is continuously optimized, and the information and the state quantity are continuously exchanged to form a protection control interface adapted to a primary system, so that dual purposes of safe operation of a system and continuous power supplying are achieved. The fault isolation range is determined by collecting a new boundary which is determined by the switching breakpoints, and that whether the system sectionalizing and the island operation mode generated as a boundary point is determined is stable or not is comprehensively considered.

The invention provides hydrotalcite-loaded nanometer platinum catalyst as well as a preparation method and application thereof. The preparation method of the hydrotalcite-loaded nanometer platinum catalyst comprises the following steps of: preparing magnesium-aluminum hydrotalcite crystal nucleus by utilizing an all-return liquid mixing membrane reactor, dispersing the crystal nucleus in an aqueous solution; adding an chloroplatinic acid aqueous solution and tetradecyl trimethyl ammonium bromide (TTAB) as well as a proper proportion reducing agent of NaBH4; controlling the reducing velocity and the growth of Pt nanometer particles by utilizing the protecting and stabilizing effect of the TTAB to the Pt<4+> ion; and gradually crystallizing the hydrotalcite while reducing the Pt<4+> ion to obtain the hydrotalcite-loaded nanometer platinum catalyst. The catalyst is obtained by loading nanometer particles on a hydrotalcite carrier, wherein the chemical formula of the hydrotalcite is as follows: MgxAly(OH)16CO3 nH2O; the platinum nanometer particle dimension is 2 nm-8nm; the nanometer particles are polyhedral or ellipsoidal in appearance; the loading capacity of the platinum is 0.5%-3%; and the dispersion degree on the carrier is 20%-50%. The hydrotalcite-loaded nanometer platinum catalyst can be used for catalytic hydrogenation reaction of unsaturated aldehyde (cinnamyl aldehyde), wherein water is used as solvent, the conversation rate of the reactant cinnamyl aldehyde is 75%-95% and the selectivity of the product cinnamyl alcohol is 75%-95%.

The invention provides a preparation method of a nano-composite fiber material. The preparation method includes the steps of (1), dispersing multiple functional nanoparticles into an organic solvent so as to form functional nanoparticle suspension; (2), providing a fusion-state organic polymer carrier material; (3), spraying the functional nanoparticle suspension on the fusion-state organic polymer carrier material so as to enable the functional nanoparticles to be attached to the surface of the fusion-state organic polymer carrier material; (4), curing a fusion-state organic polymer carrier material obtained from the step (3) so as to obtain the nano-composite fiber material. The invention further provides the nano-composite fiber material prepared by the preparation method. The nano-composite fiber material has the advantages that the functional nanoparticles can be effectively loaded on the organic polymer carrier material, so that high-capacity functional nanoparticle load can be achieved; the nano-composite fiber material can be applied to the environment-friendly fields of wastewater purification, air purification, bacterium resistance, disinfection and the like.

The invention provides a preparation method of a sulfur positive material of a lithium sulfur battery. The preparation method comprises the following steps: (a) washing lychee exocarp, drying the lychee exocarp, pulverizing the lychee exocarp into blocks, annealing the lychee exocarp blocks for 2+/-0.5 hours at the temperature of 500+/-50 DEG C under the protection of inert gases to obtain pyrolytic lychee exocarp; (b) activating the pyrolytic lychee exocarp obtained in the step (a) by utilizing KOH, and completely carbonizing the pyrolytic lychee exocarp to obtain biomass active carbon with a large specific surface area; (e) washing the carbonized powder after being cooled in step (d) by utilizing HCl solution and water until the pH value reaches 7; (f) placing the powder obtained in the step (e) into a blowing drying oven to be dried at the temperature of 80+/-10 DEG C to obtain biomass active carbon powder; and (g) mixing the biomass active carbon powder obtained in the step (f) with sulfur powder according to a mass ratio of 0.3 to 1, and grinding the mixture to obtain black mixed powder. The prepared sulfur positive composite material for the lithium sulfur battery is high in specific capacity and long in cycle life, and 51 percent of initial capacity still can be maintained after the lithium sulfur battery is circulated for 800 times.

The invention discloses a regeneration method of a denitration catalyst. The method is characterized by comprising the following steps: (1) carrying out negative pressure dust sucking on the surface and the pore canals of a deactivated denitration catalyst at the negative pressure of 0.05-0.07 MPa, while cleaning the pore canals of the catalyst with a fur brush; (2) using a prepared cleaning solution to clean the surface and the pore canals of the catalyst with ultrasonic wave and drying the catalyst; (3) steeping the catalyst in 0.1 mole of a prepared saltpeter solution containing rare earth elements La and Ce and aluminium dihydrogen phosphate and calcining the catalyst to increase the specific surface area of the catalyst and enhance the mechanical strength of the catalyst at the same time; (4) steeping the calcined catalyst in an active-ingredients steeping solution; (5) calcining. By implementing the method, the denitration efficiency of the catalyst after deactivated catalyst generation can reach 82%-87%, and the catalyst strength can be increased by 40%; the method is easy to operate and has prominent economic and social benefits.

The invention provides gel-in-oil-in-water emulsion as well as a preparation method and an application thereof. The gel-in-oil-in-water emulsion comprises an internal gel phase, an oil phase and an external water phase, wherein the internal gel phase is coated with the oil phase which is coated with the external water phase. The gel-in-oil-in-water emulsion can be used as a delivery carrier for human or animals, the internal gel phase has good biocompatibility, can be prepared under mild conditions and has environmental stimulus response, a multiple emulsion structure is prepared under mild conditions, and poor stability of multiple emulsion is improved greatly; efficient loading and activity retention of hydrophilic and hydrophobic substances especially bioactive substances can be realized, the condition that in-situ gel can only realize local drug delivery is improved, and the gel-in-oil-in-water emulsion can realize targeted delivery and intelligent controllable release on human andanimals and has extensive application prospects in the fields of vaccine adjuvant preparation, sustained and controlled drug release, targeted drug delivery, disease diagnosis and daily chemical products.

The invention discloses a hidden frame glass curtain wall installation structure which comprises a building main body and a glass curtain wall installed on the building main body, wherein the installation structure further comprises an installation chassis, the glass curtain wall is regulated through the installation chassis to a set position and is fastened, and the position of the glass curtain wall is unchanged in the fastening process. Due to the adoption of the hidden frame glass curtain wall installation structure, the hidden frame glass curtain wall installation structure exciting and controlling the dynamic production process of prestress of an elastic material to form a stable prestress structure and conducting three-dimensional regulation in the installation process to substantially improve the installation accuracy is provided, and the hidden frame glass curtain wall installation structure has the characteristics of excellent firmness, accuracy, safety, convenience and replacement.

The invention discloses a rail type rope traction aerial passenger device. A rail which is parallel to a traction steel wire rope is arranged above the traction steel wire rope; the traction steel wire rope is used for pulling a passenger device to run on the rail; the middle section of the traction steel wire rope is stabilized and guided by a rope pressing wheel supporting device; and a tail wheel is mounted on a tensioning device. The rail type rope traction aerial passenger device has the following technical effects: 1. the middle section of the traction steel wire rope is clamped into the rope pressing wheel supporting device so that the rail type rope traction aerial passenger device can change the slope and make a turn, and the passing of a rope clip is not influenced; the structure is simple, few consumable materials are used, the cost is low and the safety is high; 2. the vertical rope clip is adopted, can effectively run while bearing a passenger, also can guarantee that the passenger distance can be randomly adjusted, and can conveniently pass through the rope pressing wheel supporting device, a driving wheel and the tail wheel; the vertical state can be automatically adjusted at uphill and downhill parts and the device is comfort to take; and 3. the retractable rail is arranged in the tensioning device so that the traction steel wire rope and the rail are tensioned simultaneously and the stability is good.

The invention discloses an alginate-based composite photo-catalytic aerogel material and a preparation method thereof. The preparation method comprises the steps: ultrasonically and uniformly dispersing a nanometer photocatalytic material into water to prepare a suspension liquid; then, adding soluble alginate, pouring a mixed solution obtained after carrying out vigorous stir into a die, and carrying out freeze-drying; and placing the freeze-dried block material into a curing agent solution for curing, and then, further carrying out freeze-drying to obtain the alginate-based composite photo-catalytic aerogel material. The alginate-based composite photo-catalytic aerogel material prepared by using the preparation method has the characteristics such as high strength, low density, large specific surface area, high water resistance and simplicity in recycle, is simple in preparation process and has a great potential application value on the aspect of advanced treatment of a polluted waterbody.

The invention discloses an electrode plate as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing an electrode material plate: stirring an electrode material, a conductive agent, an adhesive, a dispersing agent and a pore-forming agent to obtain slurry, coating the surface of a current collector with the slurry, and conducting drying to obtain the electrode material plate; preparing an electrolyte solution: performing mechanical ball milling on the solid electrolyte to obtain electrolyte powder, and dissolving the electrolyte powder in an organic solvent to obtain the electrolyte solution; preparing the electrode plate:soaking the electrode material plate in the electrolyte solution, then conducting heating, drying and tabletting under the vacuum condition to obtain the electrode plate. The electrode plate of the solid-state lithium ion battery is prepared through the preparation method. The prepared electrode plate is applied to any one of a traditional liquid lithium battery, a polymer lithium battery, a mixed solid-liquid electrolyte lithium storage battery and a solid-state battery. The preparation method has theadvantages that the preparation process is low in cost, large-scale production is easy, and the prepared electrode plate has excellent electrochemical performance.

The invention provides a novel HBB overexpression vector and a design method and application thereof. The HBB overexpression vector comprises an HBB expression module; the HBB expression module comprises a DNase I core high-sensitivity site, a promoter, an HBB expression frame and a downstream high-sensitivity site which are arranged in series; the DNase I high-sensitivity site comprises HS4, HS3,HS2, 3'E and the like which are expressed in series. The total length of the HBB expression module is smaller than 4 kb. By simplifying and optimizing a cis-acting element and the HBB expression frame, not only is the length of the HBB expression module obviously shortened, but also the transcriptive activation strength of the HBB expression module is improved, and efficient, stable and specificactivation of the HBB globin gene is realized.

A method and apparatus for an adaptive, multi-axis suspension support system providing both coarse and fine suspension to a payload. Coarse suspension control is provided to maintain the payload within a coarse range of position. Fine suspension control is provided by monitoring and analyzing vibration characteristics in both time and frequency domains to determine the required amount of damper resistance to be exerted by a magnetorheological (MR) device.

The invention provides a comprehensive system of a horizontal two-way earthquake simulation shaking table. The comprehensive system consists of a table surface unit of the well-shaped rail beam-stiffened horizontal two-way earthquake simulation shaking table, a support operation mechanism unit of the horizontal two-way earthquake simulation shaking table and a vibration exciter connecting device of the horizontal two-way earthquake simulation shaking table; the table surface unit has light self-weight and large effective load, the large internal damping causes small local vibration and low noise; the vibration exciter connecting device of the shaking table has no geometric coupling, easy ensured rigidness of a connector and small extra work of the vibration exciter; the support operation mechanism unit carries a heavy model test piece, the table surface of the table surface of the shaking table can slide in any direction on the horizontal plane, the operation friction is small and the horizontal displacement ability of the shaking table is not constrained by overturning moment. The maximum displacement which can be achieved by the horizontal two-way earthquake simulation shaking table is that X is equal to plus or minus 300mm and Y is equal to plus or minus 300mm, and the horizontal two-way earthquake simulation shaking table has simple structure, low cost, small energy consumption, high energy efficiency, easy upgrade and ability of realizing the further development of loading and displacement abilities.

The invention discloses nanogel modified by ionic liquid and loaded with a chiral catalyst and a preparing method and application thereof. The nanogel is characterized in that polymerization of functional monomers, a crosslinking agent, sodium dodecyl sulfate, chiral monomers and the imidazolium ionic liquid is initiated by initiator ammonium persulfate in solvent water to form a crosslinking copolymer, and the nanogel modified by the ionic liquid and loaded with the chiral catalyst is obtained through dialysis. The invention further discloses the preparing method of the nanogel modified by the ionic liquid and loaded with the chiral catalyst and application of the nanogel to an asymmetric Aldol reaction. The ionic liquid is introduced into preparation of chiral nanometer hydrogel, and a simple and effective path is provided for preparing a novel chiral catalyst which is high in catalytic activity and selectiveness, easy to separate, capable of being used repeatedly in an aqueous solution.

The invention discloses a protein-polymer composite nano-carrier and a preparation method thereof and relates to the field of nano preparations of antitumor medicines. The protein-polymer composite nano-carrier is designed and developed on the basis of the characteristics of a lipoprotein structure of a human body and comprises a polymer core and a hydrophilic protein shell; a targeting ligand can be flexibly modified according to the treatment requirement, so as to construct the protein-polymer composite nano-carrier with active targeting property; the in vivo stability of the medicine is improved; the tumor targeting property is increased. In order to increase the load rate of the protein on the polymer kernel, a cationic additive is added to the formula to prepare a cationic polymer nanoparticle; nano suspension is milk white liquid; spherical particles with relatively uniform distribution can be seen by scanning through a transmission electron microscope. A freeze-drying protective additive is added for freeze-drying the nano suspension to form powder, so that the protein-polymer composite nano-carrier is relatively easy to store and the stability is improved. The protein-polymer composite nano-carrier prepared by the method is uniform in particle size and good in stability; and a fat-soluble antitumor medicine can be effectively encapsulated.