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 guiding method of a robot bird, which adopts a proper micro-stimulation signal to timely stimulate an abdominal dorsal median nucleus and a robustus archistriatalis of a thalamencephalon of the bird to lead an active escaping behavior of the bird; thereby guiding the flying behavior of the bird. The invention utilizes the active escaping behavior of the bird resulted from using a micro-electricity to simulate a specific nerve nuclei of the bird, namely using a principle of using the micro-electricity to simulate the nerve nuclei to image 'hurt' to guide the behavior of the bird. The method used for guiding the robot bird of the invention has the advantages that as the principle utilizes the appetence of the bird to avoid hurt, the invention has a powerful guiding function; thereby needing not to train the bird in advance; the robot bird has a huge using value; compared with the ground animal, the bird has a larger active space and fast moving speed, thus having a larger application advantage obviously; the realistic and potential application is very wide.

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 integral prefabricated cross-laminated timber (CLT) wooden plate girder bridge based on steel side stiffening, which comprises a bridge superstructure and a bridge substructure, wherein the bridge superstructure is spliced from a plurality of CLT wooden girder plates, and the upper part is provided with girder bridge spandrel girders of a girder bridge deck; each CLT wooden girder plate comprises a girder body structure and corner armor steel sides, the girder body structure is glued from at least three layers of wooden veneer sheets, and the corner armor steel sides are buckled on the upper and lower edges on the front and back ends of the girder body structure and used for stiffening the integral body; and the upper and lower edges on the front and back ends of the girder body structure are correspondingly provided with mounting notches of which the structures and dimensions correspond to those of the corner armor steel sides. The invention has the advantages of light weight, environment friendliness, simple structure, reasonable stressing and good compatibility with surrounding environment, is simple to construct, and can solve the problems of poor compatibility with surrounding environment, easy corrosion from moisture and other natural factors, on-site construction difficulty and the like in the existing bridge.

The invention discloses a conductive carbon substrate loaded graphene aerogel composite electrode and a preparation method thereof. One part of graphene aerogel of the composite electrode permeates into pores of a conductive carbon substrate, and the rest part of graphene aerogel is loaded on the surface of the conductive carbon substrate. The preparation method comprises the steps of 1, adding transition metal salt or active substance powder into a graphene oxide dispersion liquid; 2, dropwise adding a mixed solution A prepared in the step 1 onto a conductive carbon substrate, and carrying out freeze drying; and 3, putting the precursor aerogel loaded on the conductive carbon substrate into a heating furnace, and carrying out heat treatment under protective gas. The graphene aerogel composite electrode has the technical effects that grinding of the graphene aerogel is avoided, a conductive agent and a binder are not used, meshes of a graphene aerogel conductive network are not blocked, the electrical performance of the composite electrode is improved, and the composite electrode is compact in structure and does not fall off.

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 novel hollow composite slab, which comprises a flat steel plate, a plurality of holed steel plates, and a plurality of steel pipes, the holed steel plates are parallel and are vertically welded on one plane of the flat steel plate, the plurality of steel pipes respectively pass through corresponding round holes of the holed steel plate and are welded with the round holes, the flat steel plate, the plurality of holed steel plate, and the plurality of steel pipes combine into a hollow slab support, and the hollow slab support is poured with light aggregate concrete to finally form the steel plate-light aggregate concrete hollow composite slab. The novel hollow composite slab of the invention has light weight, convenient construction, higher strength and rigidity, and better bearing performance, can be widely applied to the bridge slabs of new bridges and house buildings, the basement top board or room floor, and can be also applied to the bridge slab replace and maintenance engineering.

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 provides a hard surface cleaning composition containing a waterborne polyurethane dispersion and a preparation method. The hard surface cleaning composition comprises the following components: (a) 1-30 weight parts of a waterborne polyurethane dispersion; (b) 0.1-15 weight parts of a surfactant; (c) 0-3 weight parts of a chelating agent; (d) 0-30 weight parts of a solvent; and (e) anaqueous carrier. The hard surface cleaning agent composition provided by the invention has excellent decontamination, anti-fogging, anti-scaling, dapple reduction and other properties, cationic groups are introduced into the polyurethane dispersion, after use, the effects of bacteriostasis, static electricity resistance and the like can be achieved, meanwhile, the castor oil modified polyurethanecan also form a layer of durable transparent protective film with toughness and glossiness on the hard surface, the film can be easily peeled off from the surface and take off dirt staying on the film in a next cleaning process, the surface material is not damaged, a new protective film can be formed again after the composition is used for cleaning, and the cleaned surface is further protected.

The invention provides a wide band environment air infrared telemetering and monitoring system and method, wherein the system is mainly composed of an infrared monitor, a cloud head and an upper computer; the infrared monitor comprises an infrared window, a visible light window, a blackbody radiation calibration device, a front telescope, an interferometer, an infrared detector, a signal control and communication interface, an intelligent discriminator and a CCD camera. According to the invention, the system has the advantages of high spectral resolution and high luminous flux, can achieve theidentification and alarm of multi-component air, can fully utilize the built-in blackbody to carry out high-precision calibration, and can achieve on-line spectral calibration and radiation calibration requirements, the application advantage is obvious, particularly, a high level can be achieved in the aspect of spectral signal-to-noise ratio.

The invention provides a liquid rocket electric pump engine ground test system. The system comprises a fuel supply system, an oxidizing agent supply system, an electric pump pressure type engine system, a power supply and a control system. The fuel supply system and the oxidizing agent supply system are connected with the electric pump pressure type engine system through a first pipeline and a second pipeline respectively, and pressurization and supply of fuel and an oxidizing agent are achieved through a fuel pump and an oxidizing agent pump. Start and stop of the fuel pump and the oxidizingagent pump are controlled through a motor driver in the power supply and the control system to achieve start and stop performance of the electric pump pressure type engine system. The system is suitable for an electric pump pressure type liquid rocket engine, and particularly has remarkable application advantages in the aspect of testing of a variable-thrust and multi-start liquid rocket engine.

The invention relates to a foam nickel supported single crystal trinickel diselenide nanowire array and a preparation method thereof, and belongs to the technical field of nano material preparation. Foam nickel is used as a nickel source, selenium powder is used as a selenium source, and an ethylene diamine solvothermal method is adopted for preparing the foam nickel supported single crystal trinickel diselenide nanowire array. The method is simple and low in cost, can well control crystal growth, the prepared trinickel diselenide is of a one-dimensional single crystal linear structure, the nanowire has a diameter of 30-50 nm and a length of up to 4-6 microns. The foam nickel supported single crystal trinickel diselenide nanowire array structure has obvious application advantages in electrochemical fields such as lithium ion batteries, supercapacitors, and electrolyzed water hydrogen production.

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 a data encryption transmission method based on a virtual private network. The data encryption transmission method comprises the following steps: generating a random output signal by using a superlattice cipher device; and encrypting and decrypting the data transmitted in the virtual private network according to the random output signal. The invention further discloses a server and a system for data encryption transmission in the virtual private network. The invention further discloses an application of the superlattice cipher device in a data encryption transmission process in a virtual private network. According to the invention, paired superlattice cipher devices are deployed at two ends of a virtual private network; a physical random signal can be generated in real time at a high speed and is used as a secret key for data encryption and decryption; moreover, the high rate of secret key distribution is enough to be matched with a one-time pad data encryption method, thereby avoiding the achievement of a public key and the high consumption, high delay and the like of a block encryption algorithm, guaranteeing the unconditional safety of data in a virtual private network, and guaranteeing the high efficiency and low delay of an encryption and decryption process.

The invention belongs to the technical field of concrete admixtures, and discloses a concrete admixture capable of improving workability and a preparation method thereof. The concrete admixture comprises the following components in parts by weight: 22%-45% of a modified polycarboxylate superplasticizer, 2%-8% of sodium gluconate, 0.1%-0.5% of sodium dodecyl benzene sulfonate, 0.05%-0.12% of polyvinyl alcohol and the balance of water. The modified polycarboxylic acid water reducing agent adopted by the concrete admixture can achieve good water reducing performance and slump retaining performance at the same time, the water reducing performance and the slump retaining performance can be adjusted by adjusting the structural proportion of the modified polycarboxylic acid water reducing agent, compounding of two substances is not needed, and the concrete admixture has remarkable application 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 live line proximity monitoring alarm device based on a MEMS electric field sensor. A MEMS electric field sensor probe detects an electric field. A central processor drives an alarm device to give an alarm according to electric field data. The monitoring alarm device uses the MEMS electric field sensor probe, achieves low power consumption, a small size and high spatial resolution, can simultaneously measure a DC electric field and an AC electric field, can be used for a DC live line and a power-frequency live line, and has obvious application advantages over a conventional early-warning equipment. The monitoring alarm device uses positioning technology and far and near distance wireless transmission technology, can wirelessly send alarm data and location information to a local monitoring device and a remote data center simultaneously, achieve multi-level monitoring, ensure the construction safety of large mechanical equipment such as cranes, construction vehicles and workers, and avoids accidents.

The invention relates to a cooling and heating system for a double-deck residence. The cooling and heating system comprises a boiler heating unit, a solar heat collecting unit, a wind power supplying unit and a cooling and heating heat-exchanging unit. According to the cooling and heating system, traditional fossil fuel or straw or fuel wood can serve as an energy source, and auxiliary power supplying by combining solar energy and wind power is achieved to provide cold and heat for the double-deck residence. According to the cooling and heating system, unified cooling or unified heating of the double-deck residence can be achieved, and the energy supplying mode can be flexibly adjusted according to the different energy demands of different storeys, so that the cooling and heating system is efficient and flexible.

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.