4071results about How to "Easy to get materials" patented technology

The invention provides a cement-based composite material used for a 3D printing technology as well as a preparation method and application thereof. The cement-based composite material is prepared from the following raw materials based on the total weight of the composite material: 33%-40% of cement, 0%-8% of inorganic powder, 32%-38% of tailing machine-made sand, 2.5%-3% of a high-molecular polymer, 0.1%-0.5% of a water reducing agent and 16.7%-20% of mixing water; a composite thickening time control agent, a thixotropic agent, a volume stabilizer and the like are added into a mixture to prepare an inorganic composite material; and then the inorganic composite material can be directly pumped into a 3D printer for building to be applied to construction. The cement-based composite material is an inorganic material and the materials are easily available; a lot of industrial waste materials can be used; therefore, the cement-based composite material is low in cost, energy-saving and environment-friendly; the condensation time can be flexibly controlled, and the material has super early strength, good caking property and strong stability; the requirements of 3D printing construction continuity of the building and the building strength are met so that the house building has good global stability and use safety; and the application and popularization of 3D printing technology can be greatly promoted.

The invention discloses micro ribonucleic acids (microRNA, miRNA) carried by cell microparticles (Microparticle, MP), a method for preparing the same, and application thereof in the technical field of biotechnological pharmacy. The invention provides a combination of the micro ribonucleic acids for evaluating the physiological and / or pathological states of a participant, and the combination contains all the micro ribonucleic acids which exist stably in serum / plasma particles of the participant and are detectable. At the same time, the invention provides an experimental method for preparing the cell microparticles containing specific micro ribonucleic acids and using the cell microparticles to perform gene-level regulation and control as well as modification on other cells and tissues. The combination and the method can be used for detecting and treating various diseases, including the aspects of the diagnosis and the differential diagnosis of various tumors, various acute and chronic infectious diseases and other acute and chronic diseases, the prediction and the curative effect evaluation of the occurrences of disease complications and the recurrences of malignant diseases, as well as the active ingredient screening, the efficacy evaluation and the judicial authentication of drugs, the detection of prohibited drugs and the like; besides, the combination and the method have the advantages of wide detection pedigree, high sensitivity, low detection cost, convenient available material, easy storage of samples and the like.

The invention discloses a bi-component cement based composite material for 3D (three dimensional) printing as well as a preparation method and application thereof. The bi-component cement based composite material for 3D printing comprises a component A and a component B, wherein the component A is prepared from 34 to 40 percent of sulphate aluminium cement, 0 to 6 percent of inorganic powder, 40 to 44 percent of tailing machine-made sand, 2.5 to 3 percent of high-molecular polymer and the balance of a retarder, a water reducer, a size stabilizer, a defoaming agent and water, the pumping performance can be well kept for a long time, an industrialized process of pre-stirring production in a mixing plant, transportation, and using in a construction site can be realized; the B component is prepared from a coagulate promoting agent, a thixotropic agent, a defoaming agent and water, the component is stable in form and can be stored for a long time or produced in a concentrated manner. After A and B are respectively pumped in a 3D printer, through high-speed stirring and being mixed by an extrusion head, the composite printing material can be extruded out, the time of coagulation is short, the strength is high, the adhesion is good, the stability is strong, the constructive continuity and building strength requirements of building 3D printing can be met, the industrial production and promotion of the cement based 3D printing material are facilitated, and the application of a 3D printing technology in buildings can be effectively promoted.

The invention relates to a deformable plugging and anti-sloughing agent for drilling fluid, and the deformable plugging and anti-sloughing agent comprises 10-90 parts by weight of non-deformable material, 20-80 parts by weight of nano-scale deformable redispersible polymer and 10-60 parts by weight of natural polymer modified material. The invention further relates to a preparation method of the deformable plugging and anti-sloughing agent for the drilling fluid. The preparation method comprises the following steps: mixing all the components according to the corresponding mixture ratio, mixing by virtue of a mixing and stirring machine for 80-120 minutes and screening by virtue of a 100-300 mesh screen, thus obtaining the deformable plugging and anti-sloughing agent.

invention discloses a kit for a serum micro-ribonucleic acid and the application in the early diagnosing of hepatitis B thereof which belong to the technical field of biotechnological pharmaceutics. The invention provides the combination of the micro-ribonucleic acid used for estimating the physiological and / or pathological states of a normal person, a HBVer and a patient with hepatitis B; the combination comprises all the micro-ribonucleic acids which have differential expression in the serum / plasm of the normal person, the HBVer and the patient with hepatitis B and prepares a diagnosing kit which can be used for the early diagnosing of hepatitis B. The combination and the method can be used for the early detection and nondirective therapy of hepatitis B; besides, the combination and the method have the advantages of high specificity, high efficiency, high sensitivity, low detection cost, convenient material obtaining, and the like. Besides, the samples are easily stored.

The invention discloses a culture base material for cultivating shiitake by using chrysanthemum straws. Chrysanthemum straw chips which are subjected to fermentation treatment are taken as a raw material, and auxiliary materials which have the effect of adjusting nutrition balance are added. The culture base material comprises the following components in percentage by weight: 77 percent of chrysanthemum straw chips, 15 percent of wheat bran, 5 percent of corn meal and 3 percent of bean cake. The chrysanthemum straw chips are treated by a fermentation treatment method and can be taken as a raw material of a culture medium when snowflake-shaped substances overgrow on the chrysanthemum straw chips. The pH value of the culture base material is kept at 6.5+ / -0.1. The invention also discloses a method for cultivating the shiitake by using the culture base material for cultivating the shiitake by using the chrysanthemum straws. The method comprises the steps of mixing materials, bagging, sterilizing, inoculating, growing mycelia, culturing, performing shiitake fruiting management, harvesting and the like. The problems about the improvement of the nutrient of the culture base material by treating the chrysanthemum straws, high-yield cultivation and management are solved.

The invention provides a pancreatic cancer marker, and a detection method, a kit and a biochip thereof. The pancreatic cancer marker provided by the invention contains 36 kinds of micro ribonucleic acids which stably exist in the serum / plasma of a person receiving the test and can be detected. The invention also provides a kit and a biochip of tools or elements for detecting the pancreatic cancer marker. The combination, the method, the kit and the biochip provided by the invention can be used for auxiliary diagnosis and differential diagnosis of pancreatic cancers, predication of occurrence and recrudescence of disease complications, evaluation of the curative effect, screening of active ingredients of medicaments, evaluation of pesticide effectiveness and the like, and has the advantages of wide detection range, high sensitivity, low detection cost, readily available raw materials, easy storage of samples and the like; and the method is widely applied to work related to the general survey of pancreatic cancers, improves the specificity and sensitivity which are low in the single marker due to individual difference, obviously increases clinical detection rate of pancreatic cancers and becomes an effective method for early diagnosis of pancreatic cancers.

The invention relates to a marker for detecting colon and rectum cancer by utilizing 86 specific ribonucleic acids stably existing in the serum / plasma of a human body, as well as a method, a relevant kit and a biological chip for detecting the marker. The method can be used in the aspects of diagnosing and differentially diagnosing the colon and rectum cancer and predicting the generation and the recurrence of the complications of diseases, evaluating the curative effect, screening the active ingredients in drugs, evaluating the drug effect and the like, and has the advantages of wide detection pedigree, high sensitivity and low detection cost, material is convenient for obtainment, samples are easy to store and the like. The method can be widely used for generally surveying the colon and rectum cancer and relevant work and improving low specificity and low sensitivity which are brought by the individual difference difficultly and are difficult to overcome by the single marker, thereby obviously enhancing the clinical detection rate of the colon and rectum cancer and becoming an effective means for early diagnosing the colon and rectum cancer.

The invention discloses a compound microbial fertilizer, comprising the following raw materials in parts by weight: 40-50 parts of crop straws, 50-60 parts of swine wastes, 20-24 parts of bean pulp, 12-16 parts of egg shells, 10-15 parts of vinasse, 20-25 parts of attapulgite, 18-22 parts of medical stones, 6-8 parts of schaumgyps, 10-12 parts of humus, 4-5 parts of lupulus, 5-6 parts of sophora alopecuroide, 3-4 parts of radix isatidis, 4-6 parts of sweet wormwood, 1-2 parts of EM fungicide and a proper amount of water. According to the compound microbial fertilizer disclosed by the invention, agricultural and sideline products such as the crop straws, the swine wastes, the bean pulp and the like are taken as main raw materials, so that the compound microbial fertilizer not only is available in materials, low in price and cost, and abundant in nutrient, but also can improve the soil structure; the added vinasse contains a plurality of organic compounds, vitamins B and cellulose, also contains abundant crude proteins and crude fat, can be used as an energy source fertilizer, and assisted with multifunctional natural raw materials with abundant nutrients, such as the attapulgite, the medical stones and the like, so that the compound microbial fertilizer has the advantages that the water-retaining property, the adsorbability and the like of the soil are increased. By adopting the fertilizer disclosed by the invention, resources are fully utilized, productive investment is reduced, the pollution caused by a chemical fertilizer is reduced, and the compound microbial fertilizer has certain environmental and economic benefits.

The invention provides a tissue engineering nerve graft based on a biological printing technology and a preparation method thereof. The tissue engineering nerve graft comprises an outer tube and a tube inside scaffolds, wherein trophic factors and / or cells can cover the inner surface and the outer surface. A high-fidelity printing operation is performed according to the actual nerve shape demand by utilizing the biological printing technology, a polymer solution is printed into the specified nerve graft in a three-dimensional way by using an ink-jet printer by adjusting the sizes and the quantity of the jet nozzles of the ink-jet printer, the distances from the jet nozzles to a bottom layer and the pulse frequency of a supercharger and writing a control program of specific printing, and the specified nerve graft is applied to treatment of peripheral nerve defect and spinal cord injury.

Belonging to the field of the production techniques of composite artificial boards, the present invention relates to a production method of an oriented structural bamboo or bamboo-wood flakeboard, in particular to a production method of an oriented structural flakeboard using bamboo and bamboo wood as materials. The method includes processes, such as cutting off, flaking, drying, sizing, assembly and hot-pressing formation, cutting, etc. The production technique is simple, the production cost is low, the product is high-quality and cheap, the choosing of materials is convenient, and mass production can be realized. The physical property of the product measures up to the standard of an oriented structural flakeboard, and the board surface is dense and even, thus achieving waterproof, dampproof and antifouling properties. After being cut and grooved, the product can be directly used for containers, carriage bottom boards, furnitures, packing boards, etc., and moreover, the product does not need surface processing or does not need to be added with a wood veneer and be processed in order to be directly covered with a film or veneered with other panels.

The invention provides modified biomass charcoal for treating arsenic pollution as well as a preparation method and an application of the modified biomass charcoal. The preparation method of the modified biomass charcoal comprises steps as follows: (1) biomass raw materials are charred, and the biomass charcoal is obtained; (2) the biomass charcoal is subjected to a reaction with a hydrochloric acid solution, solid-liquid separation is performed, a solid substance is obtained, is washed till the pH is neutral and then is dried, and the pretreated biomass charcoal is obtained; (3) the pretreated biomass charcoal and a FeCl3 solution are subjected to a reaction under the condition that the solution pH is neutral, solid-liquid separation is performed after the reaction, and mud cake is obtained; (4) the mud cake is dried and then washed till the pH is neutral, solid-liquid separation is performed, an obtained solid is dried for a second time, and the modified biomass charcoal is obtained. The modified biomass charcoal has large specific surface area and high iron content; the preparation method is simple and easy to operate; the modified biomass charcoal can be applied to treatment of arsenic waste and passivation of arsenic in farmland soil, and food safety is guaranteed.

The invention relates to a synergistic fertilizer, in particular to a green and environmental protection synergistic slow-releasing nitrogen fertilizer which is mixed in ammonium nitrogen fertilizers or urea, and a preparation method thereof. The fertilizer constituents are as follows: nitrogen fertilizer, a biochemical inhibitor and a synergist, wherein, the weight portion ratio of the nitrogen fertilizer to the biochemical inhibitor to the synergist is equal to 1:0.005 to 0.1:0.0005 to 1; the biochemical inhibitor is a nitrification inhibitor, and the synergist is poly (aspartic acid). The preparation method is as follows: during the operation process of the nitrogen fertilizer, the biochemical inhibitor and the synergist are added into the fertilizer under the molten state of the fertilizer. The synergistic nitrogen fertilizer of the invention is suitable for various plants and soils. The fertilizer has notable disease-resistant, drought-resistant and lodging resistant effects on crops after being applied in soils, can effectively improve nutrients reserving power of soils and has certain effect on succession crops. Gain production can be increased by 8% to 30%, vegetable production can be increased by 14% to 60% and cash crop production can be increased by more than 30% by using the synergistic slow-releasing nitrogen fertilizer.

The invention provides a pressure-balanced type portable device for soil gas collection. The pressure-balanced type portable device comprises a gas collection box and a gas extraction device, wherein the gas collection box mainly comprises a top cover, a collection box and a base; a first piston is arranged in the top cover; and the base comprises an upper part and a lower part which are provided with an adjustable included angle. During a gas collection process, the internal pressure and the external pressure of the collection box are balanced via the up-and-down movement of the first piston, thus reducing the influence of the pressure change in the collection box on the emission of soil gas, ensuring observation accuracy, and shortening observation time; and particularly, the pressure-balanced type portable device is small in sampling area and good in sealing performance. The pressure-balanced type portable device disclosed by the invention can also be applied to a slope environment with a certain angle by designing the base to be an upper base and a lower base which have an adjustable angle. Additionally, the pressure-balanced type portable device disclosed by the invention also has the advantages of being convenient in getting materials, easy to detach and carry, simple to operate, etc.

The invention discloses a method for culturing pleurotus eryngii. The method comprises the following steps of: selecting saw powder of alfalfa growing in organic soil, wild nuts in mountain and wild trees in mountain, mixing, fermenting, sterilizing, and inoculating the sterilized fermentation product to pleurotus eryngii hypha to culture to obtain mature pleurotus eryngii. By adopting the alfalfa growing in the organic soil, the problem that the alfalfa growing in common soil contains chemical fertilizer, pesticide residue and the like is solved, and harm of chemicals to a human body is solved; meanwhile, because the alfalfa is selected as one of the culture medium materials for culturing the pleurotus eryngii, the germination rate of the pleurotus eryngii can be increased by using the alfalfa to culture the pleurotus eryngii; and because the alfalfa is used as one of the culture medium materials, the growth speed of hypha can be increased, so that the production efficiency of the pleurotus eryngii is increased, and the economic benefit of the pleurotus eryngii is increased. The method has the advantages of achieving the best sterilization effect, saving the sterilization time, being simple and easy in material selection, saving a large amount of labor, reducing the production cost and increasing the economic benefit.

The invention provides a collection device of greenhouse gases at different depths of a soil section. The collection device comprises a top gas collection barrel, at least one middle gas collection barrel, a bottom cover and connection devices, wherein the connection devices are arranged between the top gas collection barrel and the middle gas collection barrel, and between the middle gas collection barrel and the bottom cover, and are used for connecting the top gas collection barrel, the middle gas collection barrel and the bottom cover to form a detachable whole body. According to the collection device disclosed by the invention, the greenhouse gases at the different depths of soil can be accurately and continuously collected; and the collection device is simple in structure and easy to operate.

The invention discloses a green health-preservation sweet-scented osmanthus tea beverage. The green health-preservation sweet-scented osmanthus tea beverage comprises the following raw materials in parts by weight: 30-40 parts of sweet-scented osmanthus, 1-2 parts of honey, 3-5 parts of Chinese wolfberry fruits, 7-11 parts of fresh tea leaves, 2-3 parts of haws, 3-5 parts of sugarcane, 2-4 parts of cucumbers,3-5 parts of aloe, 0.08-0.14 part of a thickening agent, 0.01-0.03 part of an antioxidant stabilizing agent, 0.1-0.3 part of a vitamin additive and 12-16 parts of distilled water. The sweet-scented osmanthus tea beverage disclosed by the invention has the functions of clearing heat, removing toxicity, moisturizing the intestines, regulating the function of the stomach, regulating vital energy and nourishing the lungs, and is mellow in mouth feel, moderate in sour and sweet degrees, delicious, pleasant in delicate fragrance, high in nutrient value; in addition, the beverage does not precipitate and is good in color singleness; and besides, through the preparation method of the green health-preservation sweet-scented osmanthus tea beverage disclosed by the invention, sweet-scented osmanthus blooming seasonal restrictions are avoided, the green health-preservation sweet-scented osmanthus tea beverage can be processed in an all-weather manner, the raw materials are non-toxic, harmless and convenient to obtain, and the green health-preservation sweet-scented osmanthus tea beverage is low in cost and simple in technology and has higher use value and favorable application prospects.

The invention discloses an existing line reinforcing method in under-crossing railway frame bridge small-included angle large-height inclined jacking construction. The method comprises the following steps of: reinforcing an existing line by using an overhead rail (9) along the line, and supporting the existing line by using a plurality of horizontal lifting beams (5) which are vertical to the line direction at certain intervals below the existing line, and using manual hold digging piles (1) on the lower left and right of the horizontal lifting beams (5) as support points of the horizontal lifting beams on two sides of the line; laying a steel slideway (6) between a frame top (8) and the horizontal lifting beams (5) along the jacking direction; meeting the requirements of a longitudinal slope and a cross slope of the line by using wedge-shaped wood (12) between a sleeper (20) and the horizontal lifting beams (5); and before the hole digging piles are broken, transferring the load of the pile top to the frame top (8) through the steel slideway (6), and circularly breaking the piles and jacking. By the method, the vertical and horizontal rigidity of the line are enhanced, the stability of the line during jacking is ensured, the workload for manually maintaining the line is reduced, and the driving safety is ensured.

The invention discloses an accelerant for producing biogas by straw anaerobic digestion as well as a preparation method and application of the accelerant. The accelerant is prepared from microelements, phosphate, pyruvate, fly ash and bentonite, wherein the microelements include iron, cobalt, nickel and the like. The specific using method is as follows: during straw type anaerobic digestion, the addition amount of the biogas accelerant is 10-50% of the total amount of an accelerant liquid, the biogas accelerant is directly fed in a biogas fermentation tank in a loading process and stirred uniformly; during straw high-concentration or dry-type anaerobic digestion, the addition amount of the biogas accelerant is 10-30% of the total amount of the accelerant liquid, the biogas accelerant is dissolved in an inoculum firstly, mixed uniformly together with the inoculums and the straw, and then fed in the biogas fermentation tank, and finally the accelerant is obtained. With the adoption of the accelerant, because the biogas accelerant contains composite materials which are beneficial for hydrolysis acid production microorganisms as well as biogas bacteria activities, the biogas yield of straw dry materials can be increased by15-25%.

The invention provides human umbilical cord mesenchymal stem cell exosome type external cream and a preparation method thereof, and aims at the solving the problem in effectively inducing human umbilical cord mesenchymal stem cells to massively synthesize and secrete mesenchymal stem cell exosome capable of specifically promoting epidermis cell and hypodermal cell to proliferate, divide and differentiate, promoting the formation of collagenous fibers, reticular fibers and elastic fibers, and adjusting the secreting functions of collagen and mucopolysaccharide. The cream comprises human umbilical cord mesenchymal stem cell exosome extracting liquid and a base cream formula based on the mass ratio ranging from (1:20) to (3:10), wherein the human umbilical cord mesenchymal stem cell exosome extracting liquid is prepared by performing hungry culture on P2-P5 generations of human umbilical cord mesenchymal stem cells and stimulating through epidermal growth factors. The prepared cream has the effects of improving the skin quality, resisting the aging of skin cells, recovering the normal structure and physiological function of the skin, reducing the skin atrophy exsiccosis, and moisturizing the skin tissue.

The invention relates to a method of improving the bacterinertness of a silk fibroin solution. Silk fibroin material has favorable prospects when applied in biomedicine aspect, and thus the search of a method of improving the bacterinertness of silk material is meaningful. The invention comprises a silk fibroin solution preparing working procedure which adopts silk fibroin to prepare the silk fibroin solution and is characterized by also comprising a nanometer noble metal feeding working procedure by selecting nanometer noble metal with the grain diameter between 5 nanometers to 100 nanometers. When a temperature is between 0 DEG C to 50 DEG C, the nanometer noble metal is fed to a stand-by silk fibroin solution and is stirred at a rotating speed of 100-400 round / min to obtain the silk fibroin solution comprising the nanometer noble metal; the concentration of the silk fibroin is 0.5-15w / v percent, and the concentration of the nanometer noble metal is 0.005-0.2w / v percent. The invention can favorably improve the antibiotic performance of the silk fibroin solution so that the silk fibroin can be more widely applied to biological material.

The invention relates to a kit for auxiliary diagnosis of multiple tumors by taking a micro ribonucleic acid (RNA) combination as a tumor marker, and a detection method of the kit. The invention belongs to the fields of genetic engineering and oncology. The detection method comprises the steps of (1) extracting RNA from serum; (2) carrying out polyadenylation on the 3' end of micro RNA; (3) purifying and recovering a tailing product; (4) carrying out an inverse transcription reaction on the tailing product; (5) testing the relative expression of the micro RNA by means of a fluorescent quantitative PCR (polymerase chain reaction); (6) analyzing the result of the fluorescent quantitative PCR. The kit has the characteristics of high conservative property, space-time specificity, stability, tissue specificity and the like, and plays an important role in the aspects such as disease pathogenesis research, early diagnosis, individualized treatment and prognosis; furthermore, the kit is simple to operate, convenient in material obtaining, safe and noninvasive, and is conveniently used for screening of a great deal of diseases.

The invention belongs to the technical field of in-situ repair of soil polluted by heavy metals, in particular to a method for controlling and repairing soil polluted by a heavy metal of cadmium in situ. The method is characterized in that wheat straws with water content of 5 percent are crushed to straws less than or equal to 2 cm; the straws and 0-20cm of soil polluted by the heavy metals on the surface layer are mixed and treated for 90 days; and according to the standard that the content of cadmium in the polluted soil is 4.55mg / kg, the consumption of land blocks for planting Chinese cabbages is 15.4 ton / hectare and the consumption of land blocks for planting wheat is 23.2 ton / hectare. Farmland treated by the technology can be used for agriculture planting. The invention provides energy-saving, rapid and environment-friendly method for repairing farmland polluted by the heavy metal of cadmium in-situ.

The invention discloses a directional rock blasting crack propagation method and a directional rock blasting crack propagation device. The directional rock blasting crack propagation device consists of kerf pipes and explosive, wherein each kerf pipe is symmetrically provided with double kerfs along the longitudinal wall. During directional blasting of peripheral blast holes of a roadway or presplit blasting of an open pit slope, the kerf pipes and the explosive are filled in the blast holes to finish directional crack blasting, wherein an included angle of the kerf direction and the presplit blasting outline direction is less than 150 degrees. The energy of the explosive is preferably released along the kerf direction in a centralized way, so that a blasting fracture surface is accurately controlled, the number of blasting cracks in other directions such as a surrounding rock, a slope and the like is greatly reduced, the length for the blasting crack propagation in the direction to be protected is limited, the production efficiency is high, and the construction cost is low; the device has a simple overall structure and is convenient to use, and is particularly suitable for directional controlled blasting of a rock gangway, a tunnel and the slope.

The invention discloses a hystrix hodgsoni formula feed, and provides a nutritive health care daily feed for hystrix hodgsoni, which is prepared by adopting the steps of optimally selecting excellent-quality high-yield plants jerusalem artichoke and pumpkin which are convenient to take and low in production cost and are nutritive and healthy, stripping and slicing, steaming, pulping with fresh water spinach and bidentate achyranthes roots and stems, adding fried and crushed dried sweet potato and soybean meal, adding corn flour, bone meal and the like as auxiliaries, and then carrying out burdening, mixing, pelleting, drying and the like. The hystrix hodgsoni formula feed is a nutrient and health-care feed which is rich in proteins, crude cellulose, pectin, multiple vitamins, trace elements and the like, has the characteristics of being sweet in palatability and full in nutriments, promoting the growth, and preventing and treating diseases such as enterogastritis, diarrhea, rheumatism and erysipelas which are prone to the hystrix hodgsoni. The hystrix hodgsoni formula feed is low in cost, and convenient to process, store and feed.

The invention relates to a temperature control pile-soil interface direct shear test device which comprises a portal frame, a lateral constant stiffness loading system, a pile-soil interface simulation system, a water circulation temperature control system, a normal loading system and a data collection system. The portal frame mainly provides a counter-force supporting point for the other systems. The lateral constant stiffness loading system comprises a counter-force frame, a spring fixing plate, a spring, a spring guide rod and a loading plate; the pile-soil interface simulation system comprises a pile lateral soil body box and a pile body box; the water circulation temperature control system comprises a constant temperature water tank, a heater, a refrigerator, a circulating water pump, a water guiding pipe, a valve, a flow meter and a temperature sensor; the normal loading system mainly refers to server hydraulic loading. According to the device, pile-soil interface addition temperature stress monitoring testing, hot and cold cycle after-construction pile-soil interface shear-resistance change rule testing and other testing during temperature field changing can be performed, and then energy pile load-carrying performance impact factors are analyzed.

The hair washing and protecting composition of natural plant components is compounded with tea seed oil or tea cake powder in 75-96 weight portions and ginger powder in 1-30 weight portions as main components, as well as natural vegetable oil in 2-8 weight portions and yolk powder in 1-2 weight portions, with the natural vegetable oil being mint oil, lavender oil, olive oil or sesame oil. It may have different compounding ratio for fitting different hairs. The hair washing and protecting composition of the present invention has functions of eliminating oil and grease, eliminating scurf, stopping itching, improving blood circulation, protecting hair, restoring hair, and improving sleep quality.

The invention discloses a method for manufacturing large cake forgings of high-carbon and high-chromium cold working die steel. The method is characterized by comprising the following steps of: obtaining Cr12MoV or Cr12Mo1V1 steel by adopting primary smelting with an electric furnace, ladle refining and vacuum degassing process smelting; pouring the tapped steel to form a 6 to 9t octangular ingot; conveying the octangular ingot to a press at the temperature of more than or equal to 300 DEG C, forging the octangular ingot to a blank with the diameter of 300 to 700 millimeters, removing surface defects by annealing, polishing or turning and local grinding, performing cold saw cutting on the end face and blanking to form a cake blank; and heating the cake blank to the temperature of between 1,150 and 1,190 DEG C, upsetting and forging the cake blank by using the press, annealing and turning, and thus obtaining the large cake forgings of the high-carbon and high-chromium cold working die steel. By adopting the method, the yield is improved to 40 to 60 percent; and the manufactured large cake forgings of the high-carbon and high-chromium cold working die steel can comprehensively meet the requirements of hardness, impact toughness and the like and ultrasonic flaw detection quality.

The invention relates to the tunnel construction field, in particular to a construction method for dealing with tunnel collapses to solve the existing problems such as high security risks, construction difficulty and failures to guarantee the construction quality. To achieve such purposes, the construction method comprises the following steps: solidifying the preliminary bracing of the adjourning landslides with temporary umbrella arches, and sealing off the collapse surface with spraying concrete after the collapsed cave is stabilized. The method also requires building of a working platform with ruins in the cave, and laying of sand bags on the platform to form an arch-shaped solid membrane. A concrete solidified ring is built by infusing concrete through the reserved pipeline. On top of the concrete solidified ring, a buffer ring is formed by infusing the solidified ring with sands and fly ash mixture, then the supporting system of the cave is constructed when the required strength of the concrete solidified ring is met. With the construction method, the security of the construction can be guaranteed with no quality or security risk to the collapsed section. The materials required in the method are easily available and cheap. Compared with the traditional construction methods, the new construction method can save up to 30 percent of material cost, 50 percent of risk charges, and 20 percent of labor expense for each linear meter of similar collapsed tunnels. The method of invention is efficient, safe, economical and risk-free.

The invention provides a preparation method of microbial agent-containing red-layer sandstone and mudstone interbedding side slope wound surface artificial soil. The microbial agent-containing red-layer sandstone and mudstone interbedding side slope wound surface artificial soil is prepared by effectively mixing the raw material ingredients of the microbial agent, red-layer sandstone or / and red-layer mudstone, farmland soil or / and natural soil, straw, livestock and poultry excrement, high-water-absorbility resin, cement, attapulgite powder and fertilizer under a certain condition. The preparation method has obvious effects of accelerating circulation of soil nutrient elements, increasing supply of soil available nutrients, improving soil physical and chemical characteristics and contributing to recovery of vegetation.