107results about How to "Application advantages are obvious" patented technology

The invention discloses an orbit and attitude control integrated space marching system based on an electric pump. The orbit and attitude control integrated space marching system comprises a high-pressure air bottle, an oxidizing agent storage tank, a fuel storage tank, an electric pump system, an oxidizing agent pressure accumulator, a fuel pressure accumulator, an orbit-control engine and attitude-control engines; the high-pressure air bottle is connected with the oxidizing agent storage tank and the fuel storage tank through a pipeline I, the oxidizing agent storage tank and the fuel storagetank are connected with the electric pump system through a pipeline II and a pipeline III correspondingly, the electric pump system is connected with the orbit-control engine and the oxidizing agentpressure accumulator and the fuel pressure accumulator through a pipeline V and a pipeline VI correspondingly, and the oxidizing agent pressure accumulator and the fuel pressure accumulator are connected with the attitude-control engines through a pipeline VII and a pipeline VIII correspondingly. The electric pump system controls the rotating speed and the lift of a motor pump through an actuator,the pressure and flow of an oxidizing agent and fuel supplied for the engines are controlled, the adjustment is convenient, and the supplying requirements for a propellant of large-range thrust adjustment and multi-time starting and stopping of the orbit-control engine can be met.

The invention provides an electric pump pressure type liquid oxygen methane space propelling system. The electric pump pressure type liquid oxygen methane space propelling system comprises a high-pressure gas cylinder, a liquid oxygen storage tank, a methane storage tank, an electric pump system, an oxygen heat exchange injection rod, a methane heat exchange injection rod and a track control engine; the high-pressure gas cylinder is connected with the liquid oxygen storage tank and the methane storage tank through a first pipeline; the liquid oxygen storage tank and the methane storage tank are connected with an electric pump system through a second pipeline and a third pipeline; the oxygen heat exchange injection rod is arranged in the liquid oxygen storage tank; the methane heat exchangeinjection rod is arranged in the methane storage tank; the electric pump system is connected with the oxygen heat exchange injection rod and the track control engine through a fourth pipeline; and the electric pump system is connected with the methane heat exchange injection rod and the track control engine through a fifth pipeline. The electric pump pressure type liquid oxygen methane space propelling system is suitable for a space aircraft propulsion system, and particularly has obvious application advantages on a space propelling system which has large propellant filling amount and whose track control engine needs to be started for a plurality of times..

The invention relates to a heat management device with heat leading and directional heat aggregation functions. The heat management device comprises a cylindrical base body, a heat source and a heat aggregation part; the heat source is of a columnar body structure arranged at the center of the cylindrical base body and with the height being equal to that of the cylindrical base body; the heat aggregation part is a plurality of fan-shaped structures arranged in the cylindrical base body and circumferentially arranged around the heat source; and the heat aggregation part and the cylindrical basebody have the same height, the short arc surface side of the heat aggregation part is away from the heat source, and the heat aggregation part is formed by arranging of two materials with different heat conductivity in the circular arc directions of the fan-shaped structures in a staggered mode. According to the heat management device, heat flow leading and directional aggregation of the heat source can be achieved, the range of material selection is enlarged, and the heat management device is suitable for the wide temperature range and the wide heat flow range.

The invention relates to an aqueous adjuvant composition containing: a) one or more alkyl glucamides of formula (I) wherein R1 is a linear or branched alkyl group with five to nine carbon atoms and R2 is an alkyl group with one to three carbon atoms; b) water; c) optionally a co-solvent. The invention further relates to the use of such compositions to increase the biological activity of pesticides, preferably of herbicides, and to produce an aqueous pesticide composition.

The invention relates to a hydraulic expansion type tail pipe hanger, which comprises that: a drill stem thread at the upper end of a release sub is in threaded connection with a drill string; an internal thread at the lower end of the release sub is in threaded connection with a central pipe; an expansion cone is sleeved outside the central pipe, connected with a shear pin B and a float valve sleeve and freely slides on the central pipe; and the expansion cone and an expansion pipe realize motive seal fitting with the central pipe by a plurality of sealing rubber rings. The hanger is characterized in that a thread at the lower end of the central pipe is in threaded connection with the float valve sleeve; and the float valve sleeve is provided with a hinge mount, a hinge, a shifting fork, a valve cap and a spring. The hanger has the advantages of simple structure, convenient operation, high hanging success rate and good sealing quality. After a tail pipe is hung, the inner drift diameter of a pipe column is large, which is convenient for later drilling work. The hanger has obvious application advantages in ultra deep wells and horizontal wells with large displacement.

The invention belongs to the field of soft ferrite, and discloses nickel-zinc soft ferrite for wireless charging and a preparation method and application thereof. The ferrite comprises a main component and a doping component, wherein the main component comprises Fe2O3, NiO, ZnO and CuO; the doping component at least comprises one of Nd2O3, Pr6O11, Gd2O3, Dy2O3, Tb2O3, Ho2O3 and Sm2O3; in terms ofthe weight of the main component, the Fe2O3 content of the main component is 64-67wt%, the NiO content thereof is 4-10wt%, the ZnO content thereof is 18-24wt% and the CuO content thereof is 3-9wt%; interms of the weight of the main component, the content of each doping component is 0.02-0.2wt%, and the total addition amount is smaller than or equal to 0.5wt%. Through improvement on the doping component of the nickel-zinc soft ferrite, a thin ferrite magnetic sheet product is sintered densely when T is equal to 0.05-0.2mm, the sintering temperature width is increased, the shrinkage rate is slow during sintering temperature rise, and the appearance is smooth; meanwhile, the power loss per unit volume of the magnetic sheet (power consumption) can be also effectively reduced, the working temperature rise of a wireless charging component can be reduced, and the transmission efficiency can be improved.

The invention discloses a magnetic suspension type bridge main tower pylon top displacement measurement device, which is mainly formed by a magnetic suspension rail, a shielding sleeve and an adjustable horizontal installation base. According to the device, based on a magnetic suspension principle, the magnetic suspension rail is utilized for providing a constant vertical force for a suspension mass block, so that the suspension mass block is suspended above the rail, a fixed point in a main tower pylon top displacement test is formed, the magnetic suspension rail, the shielding sleeve and the base are horizontally move along with bridge pylon top displacement, and the bridge pylon top displacement can be obtained through measuring the change of a relative horizontal distance between the suspension mass block and the shielding sleeve. The magnetic suspension type bridge main tower pylon top displacement measurement device provided by the invention is applied in the bridge main tower pylon top displacement test, so that an external fixed point has no need to be set, and the absolute displacement of a bridge main tower pylon top can be accurately measured; the dynamic measurement of the pylon top displacement can be realized, and the device can be widely applicable to the technical fields of bridge load tests, health monitoring and the like. Accordingly, the inventor also builds a corresponding measurement method.

The invention discloses a self-adhesion modularized crystalline silicon solar cell component, which is formed by laminating toughened glass, thermosol, a crystalline silicon cell sheet, thermosol, TPT (Tedlar/Polyethylene Terephthalate/Tedlar) and a self-adhesion adhesive layer in sequence. The self-adhesion modularized crystalline silicon solar cell component provided by the invention can be mounted on a roof of light steel structure; the irradiation of sunlight can be received to the greatest extent to generate power by combining the crystalline silicon solar cell component and the roof of light steel structure for use; the heat load of the roof in summer can be reduced by considering the roof bearing load and the wind load of the roof of light steel structure and storage of the original water proofing function; and the combination of the solar power generation function and the building water proofing function is realized.

The invention provides an insulating heat-conducting polymer composite material with frequency selective electromagnetic shielding, the material comprises an insulating heat-conducting layer and two conductive heat-conducting layers, and the two conductive heat-conducting layers are respectively located at two sides of the insulating heat-conducting layer to form an integrated sandwich structure;the insulating heat-conducting layer comprises a polymer matrix and an insulating heat-conducting filler, the insulating heat-conducting filler is selectively distributed at the interface of polymer particles to form an insulating heat-conducting network, each conductive heat-conducting layer comprises a polymer matrix and conductive heat-conducting filler, the conductive heat-conducting filler isdistributed in the polymer matrix to form a conductive heat-conducting network, and the polymer matrix of the insulating heat-conducting layer and the polymer matrix of the conductive heat-conductinglayers have the same composition; the material has frequency selective electromagnetic shielding performance and is insulated in the electromagnetic shielding direction. The frequency selective electromagnetic shielding function is given to an existing heat conduction electromagnetic shielding material, and the new requirements for selective electromagnetic shielding, heat conduction, insulationand the like of the heat conduction electromagnetic shielding material at present can be better met.

The invention discloses an aerobic denitrifying pseudomonas which is pseudomonas XD9 (Pseudomonas alcaliphila XD9) and is preserved in the Guangdong Microbial Culture Collection Center (GDMCC) for thepreservation time of December 25, 2018, and the preservation number is GDMCCNo:60534. The pseudomonas has strong heterotrophic nitrification and aerobic denitrification characteristics, and also hasthe capability of tolerating high-concentration organic matters, NH4<+>-N, NO3<->-N and NO2<->-N. Therefore, the pseudomonas has obvious application advantages in the aspect of treating NH4<+>-N wastewater with high organic matter content, and has application potential in the aspect of treating actual high-concentration NO3<->-N and NO2<->-N wastewater.

The invention discloses a high-performance pin fastener surface modification treatment technology. At first, nitrogen, sulfur and chromium multi-elements penetration is conducted on a pin fastener part taking alloy structural steel as a matrix material, so that a compact alloying layer of a nitrogen-sulfur-chromium and ferrum compound which has the thickness of 20 to 50 micrometers and the hardness being not less than 0.1700 and is subjected to the neutral salt spray (NSS) test for at least 120 hours is formed on the surface of the pin fastener part; then, the surface of the pin fastener part is polished; and finally, the pin fastener part is subjected to low temperature oxidation to form a compact oxidation layer. In the invention, since the alloying layer of the compound adopts the structure in which the nitrogen, sulfur, chromium and ferrum multi-elements compound covers the compact metallurgical bonding layer, the pin fastener part has the excellent performances of low cost, high strength and toughness and corrosion resistance, and remarkably prolongs the service life under the harsh service work conditions such as heavy loads and outdoor corrosion.

The invention discloses a tunnel lighting regulation and control system and method. The system comprises a plurality of sets of sensing devices, a monitoring device, a main control device and a control device. The sensing devices are matched with the monitoring device for use, so that the control device conducts bright and dark classified regulation and control on lighting lamps of different regions in a tunnel according to the actual vehicle passing information, that is, the brightness of the lighting lamps in the region where a vehicle is located and in the next adjacent region where the vehicle is going to enter is brightened, enough illumination in the running region of the vehicle is guaranteed, and the driving safety is guaranteed; meanwhile, the brightness of the lighting lamps in the regions where the vehicle has passed is darkened, so that the lighting lamps can take a rest appropriately when no vehicle passes through, long-time ongoing high-power illumination is avoided, the service life of the lighting lamps can be prolonged, the replacement frequency is reduced, and the replacement cost and maintenance time cost are saved; the operation energy consumption and maintenance cost of the tunnel are lowered in whole; the regulation and control method is easy to operate, flexible and precise to control and obvious in practical application advantage.

The present invention provides a precursor polypeptide or a pharmaceutically acceptable salt of a glucagon-like peptide-1 analogue, wherein the precursor polypeptide has an amino acid sequence represented by the following general formula I HX1X2GTFTSDVSSYLEEX3AAX4EFIX5WLVKX6X7X8X9, and X1, X2, X3, X4, X5, X6, X7, X8 and X9 represent arbitrary amino acids. The present invention further provides a glucagon-like peptide-1 analog or a pharmaceutically acceptable salt thereof. According to the present invention, the glucagon-like peptide-1 analog is obtained by conjugating a polypeptide optimized based on an endogenous GLP-1 (7-36/37) sequence and polyethylene glycol having a specific structure, has strong blood glucose lowering activity so as to reduce the dosage, and has significantly-prolonged half-life in vivo so as to be expected to improve clinical compliance; and the precursor polypeptide and the endogenous GLP-1 (7-36/37) are highly homologous in the sequence so as to reduce the immunogenicity, such that the precursor polypeptide has good potential in the drug development application.

The invention discloses a method for directly chemically synthesizing a rare-earth vanadium-doped yttrium phosphate nanocrystalline material, which comprises the following steps: dissolving rare-earth inorganic salts and yttric inorganic salts in an alcohol-deionized water solution to obtain a mixed solution A; dissolving vanadates, phosphates, ammonia water or caustic soda in an alcohol-deionized water solution to obtain a mixed solution B; dissolving caustic soda in alcohol or dissolving ammonia water in deionized water to obtain a solution C; and dropwise adding the mixed solution B and the solution C into the mixed solution A, regulating the pH value of the solution in a return passage at 5-7 all the time, keeping the temperature for 2-6 hours to obtain a precipitate, washing, separating, precipitating, drying and grinding to obtain the rare-earth vanadium-doped yttrium phosphate nanocrystalline material. The method of the invention can directly synthesize the rare-earth vanadium-doped yttrium phosphate nanocrystalline material approximately at room temperature without high-heat treatment; the invention can control the appearance of the nanocrystalline conveniently and stably; and the invention has the advantages of low cost, low energy consumption and no pollution, belongs to green chemical synthesis technique and has favorable application advantages and competitive advantages.

The invention discloses an electrochromic fiber and a preparation method thereof. The electrochromic fiber comprises an electrode and a substrate. The electrode comprises at least one pair of electrode wires arranged in parallel. The electrodes are arranged in the substrate. The electrochromic fiber further comprises a liquid crystal material. The substrate comprises at least one pore-like structure parallel to the electrode wires. The liquid crystal material is filled in the pore-like structure of the substrate. According to the invention, the electrochromic fiber based on the electric fieldexcited liquid crystal material is obviously superior to light and temperature in regulation; the good controllability thereof and flexibility have great application advantages in flexible display such as flexible sensing and smart wear; the electrochromic fiber based on the liquid crystal material is prepared by a hot drawing process; and the electrochromic fiber has the advantages of high production efficiency and mass production.

The invention discloses an electrochromic fiber device based on multistable cholesteric liquid crystal and a preparation method thereof. The device comprises an array combination of a plurality of liquid crystal fibers, wherein each liquid crystal fiber comprises an outer cladding layer, a spacer, an inner electrode and a cholesteric liquid crystal material, wherein the spacer, the inner electrodeand the cholesteric liquid crystal material are positioned in the outer cladding layer, and the outer cladding layer and the inner electrode are concentric cylinders; the spacer is arranged between the outer cladding layer and the inner electrode and is respectively adjacent to the inner side surface of the outer cladding layer and the outer side surface of the inner electrode; the region betweenthe outer cladding layer and the inner electrode except for the spacer is filled with the cholesteric liquid crystal material. According to the method, the electrochromic fiber based on the cholesteric liquid crystal material is adopted, so that the driving voltage is stable, and the treatment is convenient. The electrochromic fiber is obviously superior to the thermochromic and photochromic liquid crystal fibers in the aspects of controllability, stability, environmental adaptation and the like; and the electrochromic fiber based on the cholesteric liquid crystal material has good controllability and multistability, and has great application advantages in the aspect of liquid crystal color change.

The invention discloses a carbon monofluoride enhanced aluminum magnesium alloy material for automobile electronic packaging. The alloy material is prepared from, by weight, 5-6% of magnesium, 3-4% of lithium, 2-3% of copper, 1-1.5% of zirconium, 0.5-1% of titanium, 20-30% of carbon monofluoride sol, 1-2% of pore-forming agent, 0.5-1% of absolute ethyl alcohol and the balance aluminum.