44results about How to "Good market application prospect" patented technology

The invention relates to a fire-retardant ACS / PVC plastic alloy and a manufacturing method thereof. The alloy uses ACS resin and PVC resin as base materials; and compound fire retardant, stabilizer, compatilizer, processing aid, antioxidant and lubricant are added into the base materials in proportion by weight, then the materials are mixed at high speed, and the mixture is blended, extruded and granulated in a double-screw extruder to form the alloy. The prepared fire-retardant ACS / PVC plastic alloy has the advantages of good fire-retardant property, weather resisting property, electrostatic resistance, mechanical property and processing property, can be widely applied in the fields of electron, electrical appliances, communication, instruments, building materials, automobile parts and the like, and is an engineering plastic alloy with good development prospect.

The present invention discloses a salvaging head for a petroleum instrument salvaging system, which comprises: a lifting part, for connecting a lifting rope; an insertion rod, which is located under the lifting part and used for protruding into a stair-shaped salvaging hole, and is set with a notch on both sides of the free end thereof; two clamping pieces, which are respectively hinged in two notches, and the clamping face thereof can be in hooking fit with a hooking face in the horizontal plane, wherein the hinge part of the two clamping pieces is located on one end thereof, and the other end is set with a pulling rope, wherein the pulling rope is strained gradually as the clamping face rotates to the horizontal plane, and the orientations of the other ends, which are connected with the pulling rope, of the two clamping pieces are opposite to each other; a compression spring, which is set between the other end of each clamping piece and the sidewall of the corresponding notch, for applying a restoring force that makes the clamping face of the clamping piece in the horizontal plane. The invention further discloses a petroleum instrument salvaging system. By the above solutions, the current problems of large labor intensity, low efficiency, high cost and large economic loss caused by salvaging a petroleum instrument via pulling drill rods out of the drilling well can be solved.

The present invention relates to a microencapsulation red phosphorus fire retardation antistatic polyethylene pipe composition, and belongs to the technical field of plastic processing. The composition comprises the following raw materials, by weight, 45-60 parts of a polyethylene resin, 30 parts of an electric conduction carbon black master batch, 6-10 parts of microencapsulation red phosphorus, 6-10 parts of a melamine isocyanurate, 1.0-3.0 parts of a coupling agent, 0.1-0.3 part of an antioxidant, and 1.0-3.0 parts of a dispersing agent. With the present invention, the problem of not good fire retardation effect during fire retardation of polyethylene through single microencapsulation red phosphorus is solved; a synergetic fire retardation agent MCA is added so as to reduce the amount of the red phosphorus and improve a fire retardation effect of the composition; the microencapsulation red phosphorus fire retardation antistatic polyethylene pipe composition is an environmental protection type material, and has characteristics of good extrusion processability and good mechanical property; and compared with the bromine-antimony fire retardation system, the composition has characteristics of low raw material cost, low density, good economic benefits, and good market application prospects.

A multi-bacterium composition for regulating immunity by activating, repairing and reconfiguring immune system and preparing immunoregulator, anticancer medicine and health-care food is prepared from two or more lacticacid bacteria through culture. Its preparing process is also disclosed.

The invention relates to a method for restoring a eutrophic tidal flat sediment habitat. The method comprises the following steps of: preparing bacteria solution; preparing stationary liquid; uniformly mixing and gelling the bacteria solution and the stationary liquid; preparing CaC12 solution; fixedly granulating the gelled bacteria solution; collecting and preserving; carrying out combined operation of plowing and environmental restoration bacteria immobilized particles; arranging shellfishes and clam worms; and regularly monitoring. The method disclosed by the invention is capable of effectively protecting bacterial strains and has the buffer function in an environment that physical and chemical factors are more severe; an effective vector can be provided for the bacterial strains, so that the bacterial strains have the bacteria restoration function effectively for a long time; by means of bioturbation of the shellfishes and the clam worms, the nitration and denitrification effects of sediments can also be effectively increased; and in addition, by means of combined use of the above methods, the method has good environment-friendly value and market application prospect to environmental restoration.

The invention relates to the field of new-type flexible electrode materials and in particular to a two-dimensional nitrogen-doped porous carbon nanosheet and a preparation method thereof. The preparation method comprises the following steps: (1) preparing a carbon nanosheet: performing first calcining on a carbon material in protection of an inert gas, cooling, and preparing the carbon nanosheet;(2) preparing a porous carbon nanosheet: adding the carbon nanosheet to oxidized acidic solution and performing an oxidation reaction, preparing the porous carbon nanosheet; and (3) preparing the two-dimensional nitrogen-doped porous carbon nanosheet: adding the porous carbon nanosheet and a surfactant to water, uniformly dispersing, adding a nitrogen-doped material, dissolving, uniformly mixing,after drying, grinding to obtain mixture powder, and performing second calcining on the mixture powder in the protection of the inert gas, cooling, and preparing the two-dimensional nitrogen-doped porous carbon nanosheet. The prepared two-dimensional nitrogen-doped porous carbon nanosheet has uniform porosity, good energy storage performance and circulation stability.

The invention provides a preparation method of high-performance edible fungus slag activated carbon. The preparation method comprises (1) drying edible fungus slag and then crushing the dried edible fungus slag, (2) uniformly mixing the dried edible fungus slag powder and 25 to 30 g / 100 ml of an activator aqueous solution according to a mass ratio of 1: 5-6, carrying out impregnation at a temperature of 30-40 DEG C for more than or equal to 20h, carrying out filtration, drying the filter cake and carrying out activation at a temperature of 750 DEG C in a nitrogen atmosphere for 4.5h, (3) cooling the product to the room temperature, carrying out pickling, then carrying out washing until pH of 7 and carrying out drying. The activator comprises sodium hydroxide, potassium hydroxide and potassium carbonate according to a weight ratio of 2: 1: 5. The activated carbon has very excellent adsorption effects on methylene blue and heavy metal copper. Aiming to methylene blue, the adsorption capacity is 600 mg / g. Aiming a heavy metal copper, the adsorption capacity is 222 mg / g. An iodine adsorption value is 2300 mg / g.

The invention discloses a toll road green channel vehicle inspection system which comprises a green channel tablet personal computer, a monitoring center computer, a green channel server, a charging server, a video server and a wireless network communication module. The green channel server, the charging server and the video server are connected with the monitoring center computer. The video server is connected with a lane camera. The charging server is connected with a lane charging computer. The lane charging computer is connected with a lane controller. NFC chips are arranged in the lane controller and the green channel server respectively. The green channel tablet personal computer is in wireless connection with the green channel server and the lane server through the wireless network communication module. The green channel tablet personal computer comprises a camera, an IC card reader and an infrared probe. According to the toll road green channel vehicle inspection system, the mobility, the camera, high-performance handling operational capability and the wireless network function of the green channel tablet personal computer are utilized, and green channel vehicles are managed in an overall process and delicacy mode through combination between the green channel tablet personal computer and the IC card reader.

The invention discloses a bacillus vallismortis strain SJ and an application of the strain in preparation of a tobacco antiviral preparation and a promoter. The preservation number of the bacillus vallismortis strain SJ is CGMCC No.7571 (China General Microbiological Culture Collection Center). The invention also provides an SJ strain preparation with certain viable count, and the SJ strain preparation can be used for preparing a biological preparation capable of resisting a tobacco viral disease and a promoter for promoting the growth of the tobacco. By adopting the technical scheme, not only the utilization rates of a fertilizer and a pesticide capable of resisting the tobacco virus can be reduced, but also the environment pollution caused by the pesticide is reduced; the application of the SJ strain preparation disclosed by the invention not only can reach good antiviral effect, but also can effectively promote the growth of the tobacco; and the SJ strain preparation is low in production cost, simple and convenient to operate, long in storage time, easy to store and transport, conductive to factory expanded production, capable of achieving industrialization, and good in technical effect and market application prospect.

The invention provides a medicinal modified starch type blank pellet, which is prepared from modified starch, saccharose and the like. The starch modification material serves as a main material. The medicinal modified starch type blank pellet is characterized by comprising the main material, an adhesive and solvent, wherein the main material is pregelatinized hydroxypropylated starch. The roundness of the prepared blank pellet is enhanced, and the friability of the blank pellet can be improved.

The invention discloses a metal / sulfur-containing nickel composite material as well as a preparation method and application thereof. The preparation method comprises the steps that at least an anode,a cathode and an electroplating solution jointly construct an electrochemical reaction system, the cathode adopts a metal wire and / or a metal sheet, and the electroplating solution is a mixed solutionat least containing nickel salt, a sulfur-carrying agent, a buffering agent and water; and the electrochemical reaction system is electrified for electroplating to obtain the metal / sulfur-containingnickel composite material of which the inner layer is metal and the outer layer is a sulfur-containing nickel material. The metal wire or the metal sheet is adopted as the cathode, the labor cost is reduced, meanwhile, the product is a sulfur-containing nickel short rod or block product, and due to the potential difference between the metal wire or the metal sheet and the sulfur-containing nickelouter layer, the metal wire or the metal sheet has better solubility and can serve as a high-solubility nickel anode; and the method is used in the fields of diamond wire electroplating, nickel aminosulfonate electroplating, electronic product electroplating and the like, and improves the limited current density and the production efficiency.

The invention discloses flame-retardant antistatic blended yarn and production method thereof, and the blended yarn has a good antistatic effect, durable functions, good wearability and low production cost. The blended yarn is manufactured by blending the following materials in mass percent: 20% to 70% of flame-retardant viscose, 20% to 70% of flame-retardant acrylic fiber and 5% to 10% of stainless steel fiber. The production method includes raw material pretreatment, an opening picking process, a cotton carding process, a drawing process, a roving process and a spinning process. The flame-retardant antistatic blended yarn produced by the production method is light grey, and a test shows that the quality indexes of the blended yarn reach the first-class yarn level. A flame-retardant antistatic effect is good, and the blended yarn is suitable for industry requirements having special flame-retardant antistatic requirements, and has good economic benefits and market application prospects.

Disclosed is a cascara glycan sulfate, which is characterized in that the cascara glycan sulfate is a long chain sulfate polysaccharide which is composed of a rhamnose and whose molecular formula is (C6H7O4R2) n. When in preparation, seaweed is soaked with water in homogenate and is extracted in room temperature so that precipitate is separated, and then the water is added into the precipitate which is extracted by heating to separate out clear liquid which is then concentrated and desalted. Desalted solution is concentrated and is separated by an ion exchange chromatographic column and a gel chromatographic column sequentially; at last, polysaccharide solution obtained from the above process is concentrated and dried. The invention is a sulfate polysaccharide compound with strong polyanion property, can be used for preparation of a novel anticoagulant drug or anti-thrombosis drug, and has a good market application prospect.

The invention discloses a novel high-efficiency low-energy consumption boil off gas (BOG) recovery process with cold storage function, and a device thereof. The device comprises a LNG storage tank, a nitrogen storage tank, a compressor, a first cold storage tank, an expansion machine, a BOG condensation recovery device, and a second cold storage tank. According to the device, nitrogen from the nitrogen storage tank is subjected to compression so as to obtain compressed nitrogen; and the compressed nitrogen is delivered through one of the cold storage tanks (which is processed via cold storage at a precooling preparing stage) for cooling, is delivered into the expansion machine after temperature reducing, is delivered into the BOG condensation recovery device for heat exchange with BOG gas after further temperature reducing so as to liquify BOG gas, and then is delivered through the other cold storage tank, and at last is delivered into the nitrogen storage tank after temperature increasing. The novel high-efficiency low-energy consumption boil off gas (BOG) recovery process is simple in process flow; some professional devices are not necessary; automatic controlling is realized; nitrogen can be recycled; waste caused by nitrogen discharging is reduced; investment is reduced; and industrial popularization and market application prospect is promising.

The invention discloses a hydro-static pressure experiment teaching device and a measuring method. The device comprises a bottom bracket and a device fixing plate, wherein an organic glass web is arranged in the device fixing plate, and airtight water tanks in symmetric distribution, movable water tanks and a pressure measuring pipe fixing system which are connected with each other are mounted onthe organic glass web; the movable water tanks are mounted on upper and lower sliding rails on the device fixing plate in a sliding manner, and a water inlet, an air vent valve and a water drain outlet valve are arranged on each closed water tank; by adjusting the movable water tanks to slide along the upper and lower sliding rails, the positive pressure or negative pressure condition between thesurface pressure P0 of the liquid of the closed water tanks and the atmospheric pressure Pa is realized; by observing the pressure measuring pipe fixing system, two methods are adopted for verifying the hydrostatics basic equation and measuring the pressure or vacuum value of any point in static water; and through the pressure measuring pipe fixing system, the weight gain or density of unknown liquid is measured, and thus the type of the unknown liquid is judged. The experiment device is diversified in function, diversified in testing method, and low in cost, and has a certain promotion value.

The invention relates to a giant electric furnace for zinc pyrometallurgy, in particular to an electric furnace using columned straight graphite electrodes with diameter range 200mm to 800mm, belonging to the electric furnace equipment field. The giant electric furnace for zinc pyrometallurgy is characterized in that: the hearth of the furnace body of the electric furnace is a quadrate sealed chamber, the upper side of which is side by side provided with at least two graphite electrode access sockets, each graphite electrode access socket is provided with a graphite electrode, and a feeding tube is connected with the upper side of the hearth of the furnace body of the electric furnace. The graphite electrodes are clipped by two arc connecting clamps connected with a connecting lead, and each graphite electrode can move from top to bottom along with the arc connecting clamps. The periphery of each arc connecting clamp is provided with a cooling jacket. The graphite electrodes have straight columned shapes, the diameters of which are 200mm to 800mm. The giant electric furnace for zinc pyrometallurgy using columned graphite electrodes with large diameters has the advantages of simple structure, safe and convenient use, operation and maintenance. The giant electric furnace for zinc pyrometallurgy effectively improves the output of the zinc pyrometallurgy for a single electric furnace, allowing the annual production capacity of the single electric furnace above ten thousand tons, thus the giant electric furnace for zinc pyrometallurgy establishes the foundation for the development of the large scale electric furnace industrialization, and also has excellent socioeconomic performance and application prospects in the market.

The invention discloses a salt-tolerant, heterotrophic and aerobic nitrifying bacterium strain, and provides a culture method of the strain, a bacterial liquid containing the strain as well as an application mode of the strain in removal of ammonia nitrogen in wastewater. The strain is separated from activated sludge. Through identification, the strain is Pseudomonas sp. In a liquid culture mediumtaking glucose as a carbon source and ammonium chloride as a unique nitrogen source, the strain has a removal rate of ammonia nitrogen up to 85% or above and a removal rate of total nitrogen up to 70%, and has an efficient nitrogen removal function. The strain provides a good microbial material for biological nitrogen removal and treatment of polluted water with high salt and high ammonia nitrogen, and has better market application prospects.

The invention discloses an automatic back rubbing device. The automatic back rubbing device comprises two height adjusting guide rods, an upper support plate, a lower support plate, a drive motor, a guide pipe and a reversing groove; a drive screw is arranged in the guide pipe; a T-shaped drive block is arranged on the drive screw; the T-shaped drive block is connected with a reversing gear arranged inside the reversing groove; two reversing toothed plates are arranged on the two sides of the reversing gear; the reversing gear is further connected with a rubbing head assembly through a spherical cardan joint; a waterproof cover is arranged outside the drive motor; and an infrared proximity switch and a control circuit board for controlling the drive motor to run forwards and backwards are arranged inside the waterproof cover. When the automatic back rubbing device is used, the height of the back rubbing device is adjusted according to the personal height, then a power source is switched on, the back is leaned on a rubbing head, the automatic back rubbing device will run automatically, automatic rubbing on the back of the human body is carried out, the rubbing head rotates left and right whole moving up and down, and the effect of manual rubbing is simulated. As a height adjusting device is arranged on the automatic back rubbing device, the automatic back rubbing device can be suitable for people with different heights.

The invention discloses a method for preparing a hollow antimony-based binary alloy composite nanofiber material based on electrostatic spinning and potassium storage application of the hollow antimony-based binary alloy composite nanofiber material. According to the method, PAN and PMMA are taken as precursors, after antimony trichloride, CNT, nickel acetate, stannous chloride and cobalt chlorideare dissolved into DMF according to a certain proportion to form a spinning solution, the spinning solution is transferred into a disposable injector, electrostatic spinning is carried out in electrostatic spinning equipment, and a nanofiber membrane is obtained. After vacuum drying, the fiber membrane is put into a tubular furnace, the temperature is increased to 230-300 DEG C at a low temperature increase rate, heat preservation is carried out for a certain time, pre-carbonization is carried out, then the temperature is increased to 600-800 DEG C at a large temperature increase rate, carbonization is carried out, and a sample obtained after carbonization is marked as XSb (X = Ni, Sn, Co) / CNT / PC. A carbon framework provides a three-dimensional conductive network, the PMMA is pyrolyzed togenerate a hollow channel, alloy particles are embedded in the inner and outer surfaces of carbon fibers, by means of the CNT, the overall conductivity of the material is improved in the carbon fibers, and therefore the material shows excellent comprehensive electrochemical performance when used as a potassium ion battery electrode material.

The invention discloses a cultivation method for repeated oyster mushroom fruiting. After fruiting of the oyster mushroom, a fungus sack with the white-skinned hyphae and without infectious microbe contamination is selected as raw materials for repeated fruiting. In summer at the high temperature, the opening of the selected oyster mushroom waste fungus sack is bundled, and the selected oyster mushroom waste fungus sack is transferred to be stored in a room which is low in temperature, small in day and night temperature difference, shady, cool, close, dry, dark, not breathable and not diaphanous. In oyster mushroom fruiting facilitating seasons, such as spring or autumn, the fungus sack is peeled and transferred into a fruiting chamber, the fungus sack is placed on a fruiting rack and irrigated through clean water till the fruiting fungus sack is in a saturation condition, the temperature in the fruiting chamber is kept above 5 DEG C, the condition that the relative humidity in the range of 80%-90% is formed, the mushroom bud can be formed in 3-5 days, and if the daily management in the repeated fruiting period is good, the repeated fruiting can be achieved 2-3 times. By means of the waste oyster mushroom fungus sack and the repeated fruiting method, the contamination of agricultural waste and waste of organic matter are reduced.

The invention provides a Chinese herbal medicine feed additive for middle and later egg laying periods of ostriches as well as a preparation method and application of the Chinese herbal medicine feed additive. The additive is prepared into a finished product through smashing and uniformly mixing the following raw materials in parts by weight: 5-15 parts of herba epimedii, 5-15 parts of fructus forsythiae, 4-12 parts of actinolite, 4-12 parts of ocimum gratissimum, 3-9 parts of Chinese yam, 3-9 parts of semen cuscutae, 3-9 parts of pine needle meal, 2-8 parts of glossy privet fruits, 2-8 parts of medicated leaven, 2-8 parts of cowherb seeds, 2-8 parts of astragalus, 2-8 parts of angelica sinensis, 2-6 parts of radix codonopsis, 2-6 parts of leonurus, 2-6 parts of sanguisorba officinalis, 1-5 parts of radix rehmanniae preparata, 1-5 parts of hawthorns and 1-5 parts of malt. The additive simultaneously has a nutritive value and the effects of resisting to stress and viruses, enhancing the immunity of an organism and the like; when the additive is added into a feed to feed ostriches, the egg yield and fertilization rate of ostriches in middle and later egg laying periods can be effectively increased; and the Chinese herbal medicine feed additive is free of residues and toxic or side effects, capable of reducing the usage amount of hormone drugs and favorable in economic benefit and market application prospect.

The invention relates to a heat insulation sleeve for a battery and a preparation method thereof, and belongs to the technical field of battery protection. The heat insulation sleeve is of a three-layer structure and comprises a hydrophobic material layer on the surface, a fiber layer or a foaming layer in the middle and an aerogel layer on the inner layer. The aerogel layer of the inner layer iscomposed of aerogel powder and a water-based binder. The thickness of the surface hydrophobic material layer is 0.1-100 [mu] m. The aerogel layer is combined with the middle fiber layer or the foaminglayer so that high specific surface area, high void ratio, low density, low heat conductivity coefficient and high electrical insulating property can be achieved. The hydrophobic layer prevents external moisture from entering the middle layer and the aerogel layer, and heat conductivity coefficient increase caused by moisture is avoided. The heat insulation sleeve material has excellent heat preservation and heat insulation performance, waterproofness, insulativity, elasticity and strength and has huge market application prospects.

The invention relates to a scallop cage allowing quick sewing and belongs to the technical field of fishery engineering equipment. The scallop cage comprises a scallop cage body, a sewing zipper and a single-page closing surface, wherein the scallop cage body is a soft cylinder defined by plastic netting, and a plurality of compartments for accommodating cultured objects are isolated in the middle by hard plastic isolation pieces with meshes. The sewing zipper is mounted at the opening of the scallop cage body. The single-page closing surface covers the sewing zipper and is divided into a fixed side and a free side, the fixed side of the single-page closing surface and one side of the sewing zipper are fixed together in a sewing or thermal bonding manner, and the free side of the single-page closing surface is combined with the other side of the sewing zipper through a Velcro tape and a magnetic-attracting concealed button. A traditional manual needle and thread sewing procedure for scallop cage production can be replaced, manpower and material resources are saved, the production efficiency and benefit of raft culture production seedling sub-packaging can be improved substantially, and the scallop cage has bright practical application and marketing prospect.

The invention provides a compound regeneration repairing agent for skin damage and a preparation method thereof. The repairing agent is characterized in that: the repairing agent is prepared from plasma macromolecule protein extract, tea root extract and ceramide as main materials, and borneol, polyethylene glycol (4000-8000), glycerin, epsilon-polylysine and carbomer as auxiliary materials. The compound regeneration repairing agent for skin damage is prepared by subjecting a plurality of active ingredients such as the macromolecule protein extract in plasma, the tea root extract and the ceramide to scientific compounding. The repairing agent has the effects of improving skin immunity, improving wound microcirculation, promoting angiogenesis and granulation tissue growth, significantly accelerating wound repairing and healing speed, and achieving perfect wound-free healing of wounds. The repairing agent belongs to a pure natural biological product, and is easy to absorb by the body. Compared with existing products in the market, the product of the invention has the advantages of fast curative effect, low price, convenient use, no toxic or side effect, and has good medical development value and market application prospect.

The invention provides a turnover nursing assistive device. The turnover nursing assistive device is applied to a nursing bed provided with a turnable bed plate. The turnover nursing assistive devicecomprises a partial load part, and the partial load part is used for being arranged on the bed plate at the inner sides of the limbs of the human body; at least two partial load parts are arranged onthe bed plate at the inner sides of the limbs at the two sides; the partial load parts are in a limb full-covering shape or a limb semi-covering shape as a whole. When the turnover operation is needed, with turning of the bed plate at one side, the weight of the affected limb part of a patient acts on the partial load part at the inner side of the affected limb, and therefore the pressing strengthof the body at the other side of the patient is greatly lowered. Compared with the prior art, the possibility that bedsore occurs on the apophysis part can be lowered to the greatest extent; meanwhile, the partial load parts can lower the pressure feeling of the body at the side where the patient is in contact with the bed plate, and the comfort when the patient is in the side lying posture is effectively improved. Besides, on the basis of the supporting effect of the limbs on the patient by the partial load parts, the side lying posture can be achieved simply without the assistance of many nursing personnel. On this basis, the invention further provides the nursing bed provided with the assistive device.

The invention discloses a method for measuring the secondary electron emission yield of a medium. The method comprises the following steps: covering the surface of a medium to be measured with a metalconductive grid mesh; irradiating incident electrons into the range of the metal conductive grid mesh, and carrying out measurement to obtain incident current and sample current; according to the incident current and the sample current, obtaining the total secondary electron yield obtained through measurement by calculation; obtaining the coverage ratio of the metal conductive grid mesh on the surface of the to-be-measured medium, the shielding coefficient of the metal conductive grid mesh on emergent electrons on the surface of the to-be-measured medium at the lower layer, and the secondaryelectron yield of the metal conductive grid mesh; resolving to obtain the yield of secondary electrons emitted from the surface of the medium to be measured; and calculating to obtain the intrinsic secondary electron yield of the to-be-measured medium. The method does not need a high-precision neutralizing means, can be universally used for common metal secondary electron yield testing equipment,is accurate in measurement result, is not limited by the thickness of the sample, and can better adapt to a low-energy end.

The invention discloses a back technique for a semiconductor ultrathin device. The technique comprises the main steps of (1) bonding a wafer of which the surface is coated with a high-temperature bonding agent and a first carrier coated with a low-temperature bonding agent; (2) thinning the wafer into an ultrathin wafer and then sequentially completing conventional back processes of a back through hole, back metallization and the like; (3) separating the ultrathin wafer from the first carrier; (4) attaching the ultrathin wafer to a second carrier and then cleaning and removing the high-temperature bonding agent and the low-temperature bonding agent; (5) separating the ultrathin wafer from the second carrier; (6) carrying out an electric performance test on the ultrathin wafer on a third carrier; and (7) attaching the ultrathin wafer to the second carrier and carrying out wafer cutting. The technique has the advantages that (1) the ultrathin wafer is supported by the carriers in the back process, reduction of the split ratio of the ultrathin wafer in the back process is facilitated and the yield of the process is improved; and (2) the used carriers all are regular-size carriers of a semiconductor, the process is suitable for massive production of the device and the technique maturity is high. The technique has a good market application prospect.

A method for producing ectoine by fermenting recombinant Corynebacterium glutamicum. The recombinant Corynebacterium glutamicum is obtained by overexpressing, in Corynebacterium glutamicum, an aspartokinase gene lysC of which feedback inhibition is relieved, then replacing the promoter of the dihydrodipicolinate synthase in the recombinant bacterium to attenuate the activity of the dihydropyrimidine dicarboxylic acid synthase, and then transforming the recombinant bacterium with the ectoine synthetic path related gene ectABC. The recombinant Corynebacterium glutamicum can be fermented using different cheap raw materials under a low salt condition to produce ectoine, and use cheap corn slurry instead of expensive yeast powder as a nutritional component, so as to further reduce the costs of the raw materials. In addition, the recombinant Corynebacterium glutamicum solves the biosafety problem, simplifies the post-extraction process, and has a good market application prospect.

The invention provides a preparation method of an alkaline earth metal salt / g-C3N4 composite adsorbing material, a composite adsorbing material for treating triphenylmethane substances in waste water and a treating method. The composite adsorbing material takes BaCO3 and C3H6N6 as mixed raw materials, and is prepared through the following steps: mixing the raw materials to prepare a water solution, drying for 1-2 h at 60-80 DEG C, calcining at 400-700 DEG C for 4-6 h, cooling, grinding and the like. During specific treatment, the composite adsorbing material for treating the triphenylmethane substances in the waste water is added into the waste water for treatment. The preparation process involved in the invention has the advantages that the process is simple and easy to control, the operation is convenient, the cost is low, the raw materials are rich and easy to get and the like. The composite adsorbing material provided by the invention has excellent adsorbing performance to the triphenylmethane substances in the waste water and high adsorbing efficiency, and the degradation rate of crystal violet is as high as 92.26%. The composite adsorbing material has important application prospect in treating the organic waste water.

The invention provides a preparation method of a Z-type zinc sulfide (ZnS) / polyimide (PI) composite material, a composite material for treating tetracycline substances in wastewater and a treatment method. The composite material is prepared by taking melamine, pyromellitic dianhydride, zinc acetate dehydrate and thiourea as raw materials through the steps of solid-phase polymerization reaction, hydrothermal reaction, centrifugal collection and washing, drying and the like. During specific treatment, the composite material for treating the tetracycline substances in the wastewater is added into the wastewater for treatment. The preparation process is simple and easy to control, the operation is convenient, the cost is low, the raw materials are rich and easy to obtain, and the degradation performance of the composite material is good. The composite material disclosed by the invention has excellent degradation performance on tetracycline antibiotics in wastewater, and the degradation rate of tetracycline is up to 80% or above. The composite material has an important application prospect in the aspect of antibiotic wastewater treatment.