37results about How to "Improve the ability of material exchange" patented technology

The invention provides a molecular sieve / fiber composite material. The molecular sieve / fiber composite material comprises molecular sieves and fibers, wherein the molecular sieves are distributed on surfaces of the fibers and are in contact with the surfaces of the fibers directly, the particle size D90 of the molecular sieves is 0.01 to 50 microns, and the particle size D50 of the molecular sieves is 0.005 to 30 microns; and the molecular sieves are uniformly distributed on the surfaces of the fibers. The invention further provides a preparation method for the molecular sieve / fiber compositematerial and various uses of the molecular sieve / fiber composite material. According to the molecular sieve / fiber composite material, the preparation method therefor and various uses of the molecularsieve / fiber composite material, the problem of molecular sieve / fiber composite materials that molecular sieves are gathered on surfaces of fibers is solved for the first time, the molecular sieve / fiber composite material prepared is bran-new and has relatively high strength, elasticity restorability and dimensional stability, and thus, the composite material is firm and durable. The molecular sieve / fiber composite material provided by the invention is simple in structure, low in cost, high in stability, high in performance repeatability and high in practical efficiency and can be applied to the fields of arresting bleeding, facial beautification, deodorization, sterilization, water purification, air purification and antiradiation.

The invention discloses bitter almond oil and an extraction method thereof. Bitter almonds are taken as raw materials, a low-temperature and biological processing technique is adopted in the whole process, loss of thermal-sensitive nutritional substances such as protein, higher fatty acid, vitamins and the like in the bitter almonds is effectively avoided, free oil, an emulsion, hydrolysate and almond dregs are obtained after microwave radiation sterilization, frozen-breaking, enzymolysis and vacuum centrifugation, free oil is obtained after the emulsion is subjected to biological demulsification and vacuum centrifugation, all the free oil is combined, and the bitter almond oil is obtained, wherein the bitter almond oil has a high oil extraction rate being 93%-97%, the content of nutritional and active substances is high, the food safety is high, the residual amount of cyanide is under 0.08 mg / kg, and the guarantee period of the bitter almond oil is long and can reach 5-6 years. With the adoption of the extraction method, the quality and the yield of products are improved, meanwhile, the variety, the yield and the additional value of byproducts obtained after the oil is extracted are increased, the extraction cost of the oil is further reduced, discharging of three wastes is avoided, environment protection is realized, and low-carbon production is truly realized.

The invention relates to a flow field structure for improving an effective area of a bipolar plate waveform flow channel flow filed of a fuel cell. A half-moon-like lug boss similar to the shape of awaveform flow channel and flow channels around the half-moon-like lug boss are arranged on electrochemical reaction weakening regions distributed at two sides of the waveform flow channel flow filed,so that each electrochemical reaction weakening region is provided with an electrochemical reaction with the same degree as a fuel cell main body flow field. The effective area of the bipolar plate waveform flow channel flow filed can be improved through the flow field structure, and the effective electrochemical reaction area is improved through reducing the electrochemical reaction weakening regions of each fuel cell. Although the ratio of the electrochemical reaction weakening regions in the flow field of the fuel cell is relatively low, since the fuel cell galvanic pile is formed by stacking dozens even hundreds of fuel cells, for one fuel cell galvanic pile, the increase in the effective area of electrochemical reaction of the fuel cell is considerable.

The invention provides a novel ecotype riverway retaining wall system. The novel ecotype riverway retaining wall system comprises an original soil layer, a basement, a retaining wall, a coping, an impermeable geomembrane and an anti-filtering geotechnical cloth, a plurality of containing space are formed by enclosing the anti-filtering geotechnical cloth, the impermeable geomembrane, a soil engineering grid, the retaining wall and the basement, and the multiple containing space are filled with graded broken stones. The retaining wall is formed by piling up first building blocks and second building blocks and is provided with hole and slot structures extending in all directions, the connection in the left and right directions of the retaining wall is realized by arranging interlocking structures on the first building blocks and the second building blocks. The novel ecotype riverway retaining wall system improves flood-fighting and flood prevention capacities and material exchange capacity between a soil body and a water body, the problem of water and soil loss is avoided, the connection through mediums, such as rubber rods, pins and the like, is avoided, and the damage to the soil body caused by shrimp and crab punching can be effectively prevented.

The invention provides a hemostatic compound. The hemostatic compound comprises molecule sieves and fibers, the molecule sieves are distributed on the surfaces of the fibers and make direct contact with the surfaces of the fibers, the particle size D90 of the molecule sieves is 0.01-50 [mu]m, the particle size D50 of the molecule sieves is 0.005-30 [mu]m, the content of a binder on the contact surface of the molecule sieves and the fibers is 0, the contact surface of the molecule sieves and the fibers is an inner surface which is a rough plane, growth matched coupling is formed between the molecule sieves and the fibers on the inner surface, a non-contact surface of the molecule sieves and the fibers is an outer surface which is a non-plane, and the inner surface and the outer surface areboth composed of molecule sieve nanoparticles. The invention also provides a preparation method and an application of the hemostatic compound. The hemostatic compound requires no binder, increases theblood clotting response speed and plays a rapid blood clotting role, so that the problem that the hemostatic compound loses the hemostatic effect easily due to the fact that molecule sieves fall fromthe surface of the fibers easily is solved, the problem that easily falling molecule sieves can stick to wound parts to cause thrombus is solved, and the performance and safety of the hemostatic compound are improved.

The invention discloses oxidization-resistant bitter almond oil and an extraction method thereof. Bitter almonds serve as a raw material, a low-temperature biological processing technology is adopted in the whole process, the loss of thermosensitive nutrient substances such as protein, higher fatty acid and vitamins in the bitter almonds is effectively avoided, free oil, emulsion, hydrolysate and almond residue are obtained through microwave irradiation enzyme deactivation, refrigeration crushing, enzymolysis and vacuum centrifugation, the emulsion undergoes biological demulsification and then undergoes vacuum centrifugation again to obtain free oil, and the free oil is merged to obtain the bitter almond oil which is high in grease extraction rate (93-97%), nutrition and active material content and food safety (the cyanide residue is 0.08 mg / kg or below) and long in guarantee period (5-6 years). According to the extraction method, the variety, yield and added value of by-products after grease extraction are increased while the product quality and yield are improved, the grease extraction cost is further reduced, the emission of three wastes is avoided, and the environment is protected.

The invention discloses low-yanide semen armeniacae amarum and a preparation method thereof and belongs to the technical field of primary processing of semen armeniacae amarum. The preparation method comprises the following steps: semen armeniacae amarum is adopted as the raw material and subjected to peeling, debittering and detoxification to obtain almond carpel; the almond carpel is subjected to microwave drying to obtain dry almond carpel; semen armeniacae amarum skin is collected, frozen and crushed, and the crushed semen armeniacae amarum skin is uniformly mixed with a debittering liquid; the mixture is subjected to enzymolysis and twice distillation to obtain a semen armeniacae amarum skin extract; the semen armeniacae amarum skin extract is decolored and then mixed with the dry almond carpel at a certain proportion; the obtained mixture is stir-fried to obtain the semen armeniacae amarum which has the natural flavor of semen armeniacae amarum, is smooth and tidy, high in debittering ratio (98.5-99.8 percent), remarkable in detoxification effect (the cyanide residual quantity is 0.04-0.06 mg / kg) and long in guarantee period (24-36 months). The preparation method is simple in process, short in period, high in efficiency and energy-saving, can realize mass production, achieves the purpose of zero emission of toxic substances in the technical field of primary processing of semen armeniacae amarum, is environmental-friendly and explores a novel shortcut for deep processing of semen armeniacae amarum.

The invention discloses a nitrogen and phosphorus removal ecological permeable material and a preparation method thereof, and belongs to the fields of environmental functional materials and water purification. The ecological permeable material comprises a slow-release skeleton structure and permeable holes; the slow-release skeleton structure a skeleton is formed by pyrite particles of which the surfaces are coated with a mixture of a binding material and fiber reinforced ribs and aggregate particles of which the surfaces are coated with a mixture of the binding material and fiber reinforced ribs, the permeable holes are uniformly distributed in the slow-release skeleton structure, and the channels of the holes enable the water permeability coefficient of the ecological permeable materialto be not less than 10 mm / s. The nitrogen and phosphorus removal ecological permeable material has the characteristics of good water permeability, high molding degree, high specific surface area, highstrength, easiness in microbial biofilm formation and the like, can slowly release calcium ions and iron ions to remove phosphorus, realizes autotrophic nitrogen removal, and has a good purificationeffect on pollutants in water, especially total nitrogen and total phosphorus.

The invention provides novel environment-friendly packing for a mobile bed biofilm method. The novel environment-friendly packing for the mobile bed biofilm method is characterized by comprising an external-layer mesh bag and inner-layer filling microspheres; the inner-layer filling microspheres comprise, by mass, 5-10 parts of carbonized rice husk powder, 5-10 parts of diatomite, 5-10 parts of hydroxy calcium phosphate, 40-60 parts of PVC elastomer, 20-40 parts of polyvinyl alcohol resin, 2-6 parts of stearic acid, 1-5 parts of polyacrylamide and 10-20 parts of foaming agent; the external-layer mesh bag is thermoplastic resin and adheres to the surfaces of the inner-layer filling microspheres through thermal treatment. The novel environment-friendly packing for the mobile bed biofilm method is simple in structure, can lower the production cost, and is environmentally friendly, easy to degrade, large in hanging film amount, and high in sewage treatment efficiency.

The invention provides a novel ecological retaining wall. The novel ecological retaining wall is formed through piling first building blocks and second building blocks, and besides, the first buildingblocks and the second building blocks can be piled into retaining walls which meet different slopes and requirements; and through hole and groove structures and interlock structures are arranged on the first building blocks and the second building blocks. When the novel ecological retaining wall is adopted in conditions like a waterway, flood fighting capacity and material exchange capacity of asoil body and a water body are improved, connection is achieved without media like rubber rods and dowels, a constructed wall body structure is compact, and safety and durability of the retaining wallare improved.

The invention discloses a method for producing the packed liver project bracket. First according to the inner micro-structure of natural liver, processing the bionic design of liver project bracket blood vessel system and the liver hole; using the fast molding micro-complex technique to produce the silicon rubber mould of bionic liver project bracket; plating the biological material with better bioavailability and biodegradability on the silicon rubber mould; packing the liver project bracket mould after removing mould to realize the spatial structure of liver project bracket; and wetting, sopping, cooling and drying the liver project bracket to attain the spatial liver project bracket with high porous property. When in the external culture, the endothelial cell of blood vessel is planted on the blood vessel network system, and the liver cell is planted on the liver cell hole; then, with the degradation of spatial liver project bracket, the endothelial cell can form the blood vessel, and the liver cell can increase and reunite to grow into the liver organization, to supply the base of transforming the artificial liver into natural liver.

The invention discloses bright bitter apricot seeds and a preparation method thereof, and belongs to the technical field of primary processing of bitter apricot seeds. The preparation method comprises the following steps of peeling, debitterizing and detoxifying the bitter apricot seeds serving as raw materials so as to obtain apricot seed cloves; then performing microwave drying so as to obtain dried apricot seed cloves; collecting bitter apricot seed peel, refrigerating the collected bitter apricot seed peel, crushing the refrigerated bitter apricot seed peel, uniformly mixing the crushed bitter apricot seed peel with debitterizing liquid, and performing enzymolysis and distillation twice so as to obtain an apricot seed peel extract; and then performing decoloration, mixing the apricot seed peel extract after the decoloration with the dried apricot seed cloves according to a certain proportion so as to obtain a mixture, and then stir-frying the mixture so as to obtain the bitter apricot seeds with natural flavor of the bitter apricot seeds, high smoothness and tidiness, high debitterizing rate (98.5-99.8%), significant detoxifying effects (the quantity of cyanide residues is 0.04-0.06mg / kg), long quality guarantee period (24-36 months) and low cost. The preparation method disclosed by the invention is simple in technology, short in cycle and high in efficiency, energy resources are saved, the large-scale production can be realized, zero discharge of toxic substances in the technical field of the primary processing of the bitter apricot seeds is realized, the preparation method is environment-friendly, and a new shortcut is explored for the deep processing of the bitter apricot seeds.

The invention discloses flavored bitter almond oil and an extraction method thereof. The flavoured bitter almond oil uses bitter almonds as raw materials, uses low temperature and biological processing filed, effectively prevents heat-sensitive nutrients in the bitter almonds such as proteins, higher aliphatic acids and vitamins and the like from losing, and prepares free oil, emulsions, hydrolysate and almond cakes after microwave irradiation enzyme, frozen-breaking, enzymatic hydrolysis and traditional vacuum, the emulsion is centrifuged in vacuum to obtain the free oil after being biologically broken, and the free oil is combined to prepare a bitter almond oil which is high in extraction yield of oil (93%-97%), high in nutrition and active material content, strong in food safety (cyanide residue is below 0.08mg / kg ) and long in shelf life (5-6 years). The method for extracting the flavored bitter almond oil improves quality and yield, improves kinds, yield and additional value of by-products after greases are extracted, further reduces extraction cost of greases, puts an end to emission of three wastes, and protects environment.

The invention provides a cosmetic. The cosmetic is mainly prepared from an epidermal stem cell extract and aloe micromolecular bioactive peptide. The provided human epidermal stem cell extract contains various kinds of life active matter, can revitalize skin cells, activate the self-healing function of human body, supplement and condition aged cells, activate cell functions, increase the number ofcells, improve the cell viability, improve the cell quality, improve the material transportation function of cytomembrane and material interchange capability, recover the normal physiological function of cells, and promote corium layer cells to secrete and synthesize functional molecules such as collagenous fiber, polysaccharide and glycoprotein. The provided aloe micromolecular polypeptide can obviously improve the recovery function of the human epidermal stem cell extract on damaged skin, and the function of delaying cell ageing.

The invention discloses semen armeniacae amarum with a long quality guarantee period and a preparation method of the semen armeniacae amarum, and belongs to the technical field of primary processing of semen armeniacae amarum. The preparation method comprises the following steps of using the semen armeniacae amarum as raw materials, and peeling, debitterizing and detoxifying the semen armeniacae amarum so as to obtain the embryo of semen armeniacae amarum; then performing microwave drying so as to obtain the dried embryo of semen armeniacae amarum; collecting the seedcoat of semen armeniacae amarum, refrigerating the collected seedcoat of semen armeniacae amarum, crushing the refrigerated seedcoat of semen armeniacae amarum, uniformly mixing the crushed seedcoat of semen armeniacae amarum and debitterizing liquid, and performing enzymolysis and two times of distillation so as to obtain an extract of the seedcoat of semen armeniacae amarum; and then performing decoloration, mixing the extract after the decoloration with the dried embryo of semen armeniacae amarum according to a certain proportion so as to obtain a mixture, and then stir-frying the mixture so as to obtain the semen armeniacae amarum with a natural flavor of the semen armeniacae amarum, high smoothness and tidiness, a high debitterizing rate (98.5-99.8%), significant detoxifying effects (the quantity of cyanide residues is 0.04-0.06mg / kg), a long quality guarantee period (24-36months) and a low cost. The preparation method disclosed by the invention is simple in technology, short in cycle, and high in efficiency, saves energy resources, can realize large-scale production, can realize zero discharge of toxic substances in the technical field of the primary processing of the semen armeniacae amarum, is environment-friendly, and provides a new shortcut for the deeply processing of the semen armeniacae amarum.

The invention relates to a pseudo random pulse sequence electric simulation therapeutic instrument and a working method thereof. A single-chip microcomputer endows a pseudo random encoding program; and an electrode A and an electrode B outputs an electric simulation pulse sequence, wherein the polarity and amplitude of the sequence can be changed and the pulse amplitude, pulse width and pulse period of the sequence are modulated by a pseudo random code. The electric simulation pulse sequence is used for simulating an acupuncture point to eliminate accumulation of free radicals of a corresponding organ part; and the histocyte can be protected from being damaged and correct transmission, transcription, and copying of DNA information of stem cells can be guaranteed based on dynamic balancing of the free radical level enables. According to the invention, the shortest period of the generated electric simulation pulse changing randomly is 333ms (3Hz) and matching with physiological parameters of muscle contraction of the human body is realized, so that the electric simulation effect is good; the width of the electric simulation pulse changing randomly is (5-20) ms and time occupied by each electric simulation pulse is larger than ascending branch time of cell excitation, so that each pulse can stimulate excitation of the cell once.

The invention provides a hemostatic fabric containing trypsin. The hemostatic fabric contains a molecular sieve fiber compound and the trypsin, wherein the molecular sieve fiber compound contains molecular sieves and fibers, and the molecular sieves are distributed on the surfaces of the fibers and are in direct contact with the surfaces of the fibers; contact surfaces between the molecular sievesand the fibers do not contain binder and are inner surfaces, and the inner surfaces are rough planes, and growth matching coupling is formed between the molecular sieves and the fibers on the inner surfaces. By specifically combining the trypsin with the molecular sieve fiber compound and maintaining relatively high procoagulant activity, the hemostatic fabric with an excellent blood coagulationeffect is obtained. The preparation method of the hemostatic fabric is simple and low in cost, and the hemostatic fabric is convenient to use and can be widely applied to surgical hemostasis.

The invention discloses bitter apricot kernel oil with high extraction rate and an extraction method thereof. The bitter apricot kernel oil and the extraction method have the beneficial effects that bitter apricot kernels are taken as the raw materials, and the low temperature biological processing technology is adopted in the whole course, thus effectively avoiding losses of thermosensitive nutrients in the bitter apricot kernels, such as proteins, higher fatty acids and vitamins; free oil, emulsion, hydrolysate and apricot kernel residues are obtained after enzyme deactivation by microwave irradiation, freezing and breaking, enzymolysis and vacuum centrifuging; the emulsion undergoes vacuum centrifuging after undergoing biological demulsification to obtain free oil; the free oil is mixed to prepare the bitter apricot kernel oil with high oil extraction rate (93-97%), high nutrient and active substance content, strong food safety (the residual quantity of cyanides is below 0.08mg / kg) and long shelf life (5-6 years); the extraction method has the effects of increasing the variety, yield and added value of the byproducts after oil extraction while increasing the product quality and yield, further reducing the oil extraction cost, completely eradicating discharge of the three wastes and protecting the environment.

The invention discloses a debitterized and detoxified bitter apricot kernel and a production method thereof, and belongs to the technical field of primary processing of bitter apricot kernels. The method comprises the following steps: peeling bitter apricot kernels used as a raw materials, debitterizing the peeled bitter apricot kernels, detoxifying the debitterized bitter apricot kernels to obtain apricot kernel sections, carrying out microwave drying to obtain dry apricot kernel sections, collecting bitter apricot kernel skins, refrigerating the skins, crushing the refrigerated skins, uniformly mixing the crushed skins with a debitterizing liquid, carrying out enzymatic hydrolysis, distilling the obtained material twice to obtain an apricot kernel skin extract, decolorizing the extract, mixing the decolorized extract with the dry apricot kernel sections according to a certain ratio, and stir-frying the obtained mixture to obtain the bitter apricot kernel with the characteristics of bitter apricot kernel natural flavor, brightness, cleanness and regularity, high debitterizing rate (98.5-99.8%), substantial debitterizing effect (the cyanide residual quantity is 0.04-0.06mg / kg), long shelf life (24-36 months) and low cost. The preparation method has the advantages of simple process, short period, high efficiency, energy saving, large scale production, realization of zero discharge of toxic substances in the technical field of primary processing of the bitter apricot kernels, environmental protection, and exploration of a new way for depth processing of the bitter apricot kernels.

The invention discloses a biological stuffing for wastewater treatment. The biological stuffing is shaped like a honeycomb-like sphere, is formed by using a selective laser sintering method and has the specific surface area of larger than or equal to 3000, the porosity of larger than or equal to 90%, the surface roughness Ra of larger than or equal to 60mum, the tensile strength of larger than or equal to 30MPa, the bending strength of larger than or equal to 20MPa and the impact strength of larger than or equal to 3KJ / m<2>. The honeycomb-like spherical biological stuffing is of a three-dimensional hollow honeycomb-like spherical structure formed by a pentagonal or / and hexagonal honeycomb through mapping towards a spherical surface by taking a dodecahedron, hexakaidecahedron or triacontadihedron as a basic topology, wherein the honeycomb is of a structure obtained through mapping single face of the dodecahedron, hexakaidecahedron or triacontadihedron; all parts except for the edges of the dodecahedron, hexakaidecahedron or triacontadihedron are of hollow structures during mapping. The biological stuffing disclosed by the invention has extremely high specific surface area and favorable surface roughness under the condition that the mechanical property of wastewater treatment is met, so that the biofilm formation can be favorably realized, and the wastewater treatment efficiency is increased.

The invention relates to a magnetic rhinitis plug adopting 50 to 2000 gauss magnetic substance to make into magnetic block, which is divided into an N and an S blocks. By using magnetic substance to plug into nasal cavity and meanwhile applying infrared materials on the surface of the magnetic substance, so as to improve the microcirculation effect inside nasal cavity and smoothening the breath at the afflicted part. Soft material can be attached on the external of magnetic substance to strengthen the comfortableness, therapeutic medicine or personally favored vanilla flavor also can be enclosed, and the carbon fiber material is preferred, as the carbon fiber material has abundant specific for medicine to slowly release effects while purifying the inhaled air. The magnetic rhinitis plug has the advantages of thoroughly eliminating the defects of medicine and surgeries, curing rhinitis for patients easily without causing any side effects.

The invention relates to a flow field structure for improving an effective area of a bipolar plate waveform flow channel flow filed of a fuel cell. A half-moon-like lug boss similar to the shape of awaveform flow channel and flow channels around the half-moon-like lug boss are arranged on electrochemical reaction weakening regions distributed at two sides of the waveform flow channel flow filed,so that each electrochemical reaction weakening region is provided with an electrochemical reaction with the same degree as a fuel cell main body flow field. The effective area of the bipolar plate waveform flow channel flow filed can be improved through the flow field structure, and the effective electrochemical reaction area is improved through reducing the electrochemical reaction weakening regions of each fuel cell. Although the ratio of the electrochemical reaction weakening regions in the flow field of the fuel cell is relatively low, since the fuel cell galvanic pile is formed by stacking dozens even hundreds of fuel cells, for one fuel cell galvanic pile, the increase in the effective area of electrochemical reaction of the fuel cell is considerable.

The invention discloses an orthogonal flow and sandwich hepatic cell bioreactor which comprises a culturing barrel, an upper cover, a lower cover and a plurality of culturing units. Each culturing unit comprises a silica gel seal, a runner piece and a hepatic cell culture slice from bottom to top, wherein the hepatic cell culture slice comprises a round slice frame and two semi-transparent films attached to the upper surface and the lower surface of the round slice frame respectively; a plurality of first liquid passing holes are formed in the circumference of the round slice frame; the silica gel seal and the runner piece are of ring shapes with the outer diameters equal to that of the round slice frame; the two opposite sides of the circumferences of the silica gel seal and the runner piece are each provided with a protruding piece protruding in the inner diameter direction; a plurality of second liquid passing holes are formed in the circumferences of the corresponding protruding pieces. Blood passes through the first liquid passing holes in one sides of the hepatic cell culture slices, the silica gel seals and the runner pieces to form blood channels connected in series. Hepatic cell culture media pass the first liquid passing holes in the other two sides of the hepatic cell culture slices and the second liquid passing holes in the two opposite sides of the silica gel seals and the runner pieces to form hepatic cell culture medium channels.

The invention discloses a low-temperature preservation method of a multifunctional 3D recombinant skin model. According to the invention, cytochalasin B is applied to solid preservation of a skin model for the first time, a three-step method is adopted for treatment, and the treatment method can maintain the cell activity of the model in a transportation process and reduce cell hypoxic injury, sothat the test accuracy and the cell activity of the 3D heavy skin group model are guaranteed, and the preservation time is prolonged to a great extent.

The invention discloses environment-friendly semen armeniacae amarae oil and a method for extracting the same. The environment-friendly semen armeniacae amarae oil and the method have the advantages that the semen armeniacae amarae oil is made of semen armeniacae amarae which is a raw material, low-temperature biological processing technologies are adopted in whole procedures, accordingly, loss of thermo-sensitive nutrient substances such as protein, higher fatty acid and vitamins in the semen armeniacae amarae can be effectively prevented, first free oil, emulsion, hydrolysate and semen armeniacae amarae residues can be obtained by means of microwave irradiation enzyme deactivation, frozen-breaking, enzymatic hydrolysis and vacuum centrifugation, the emulsion is subjected to biological demulsification and then is subjected to vacuum centrifugation again to obtain second free oil, and the first free oil and the second free oil are combined with each other to obtain the semen armeniacae amarae oil which is high in oil extraction rate (93-97%), nutrient and active substance content and food safety (cyanide residual quantities are lower than 0.08 mg / kg) and long in shelf life; by the aid of the method, the quality of products can be improved, the yield of the products can be increased, the varieties, the yields and added value of byproducts obtained after the oil is extracted can be increased, the oil extraction cost further can be reduced, emission of 'waste gas, waste water and industrial residues' can be completely eradicated, and accordingly environments can be protected.

The invention discloses edible bitter apricot kernels and a preparation method thereof, belonging to the technical field of bitter apricot kernel primary processing. The preparation method has the beneficial effects that bitter apricot kernels are taken as raw materials and are peeled, debitterized and detoxified to obtain apricot kernel segments, then the apricot kernel segments are subjected to microwave drying to obtain dry apricot kernel segments, bitter apricot kernel skins are collected, frozen and broken, are uniformly mixed with a debitterizing liquid and are subjected to enzymolysis and two-time distillation to obtain an apricot kernel skin extract, the apricot kernel skin extract is mixed with the dry apricot kernel segments according to a certain proportion after being decolorized, and the mixture is stir-fried, thus obtaining the bright, clean and tidy low-cost bitter apricot kernels with natural flavors of bitter apricot kernels, high debitterizing rate (98.5-99.8%), obvious detoxification effects (the residual quantity of cyanides is 0.04-0.06mg / kg) and long shelf life (24-36 months); the preparation method is simple in process, short in cycle and high in efficiency, has the effect of saving energy, can be used for large-scale production, achieves zero discharge of toxic substances in the technical field of bitter apricot kernel primary processing, is environment-friendly and has the effect of exploring a new shortcut for deep processing of bitter apricot kernels.

The invention provides novel environment-friendly packing for a mobile bed biofilm method. The novel environment-friendly packing for the mobile bed biofilm method is characterized by comprising an external-layer mesh bag and inner-layer filling microspheres; the inner-layer filling microspheres comprise, by mass, 5-10 parts of carbonized rice husk powder, 5-10 parts of diatomite, 5-10 parts of hydroxy calcium phosphate, 40-60 parts of PVC elastomer, 20-40 parts of polyvinyl alcohol resin, 2-6 parts of stearic acid, 1-5 parts of polyacrylamide and 10-20 parts of foaming agent; the external-layer mesh bag is thermoplastic resin and adheres to the surfaces of the inner-layer filling microspheres through thermal treatment. The novel environment-friendly packing for the mobile bed biofilm method is simple in structure, can lower the production cost, and is environmentally friendly, easy to degrade, large in hanging film amount, and high in sewage treatment efficiency.

The invention discloses bitter apricot kernel oil with low cyanide residual quantity and an extraction method thereof. The extraction method utilizes bitter apricot kernel as a raw material and a low temperature bio-processing technology so that a loss of heat-sensitive nutrients such as proteins, higher fatty acid and vitamins in bitter apricot kernel is effectively avoided. Through microwave irradiation enzyme deactivation, refrigeration and fragmentation, enzymolysis and vacuum centrifugation, free oil, emulsion, hydrolysate and bitter apricot kernel slag are obtained. The emulsion is subjected to biological demulsification and then is subjected to vacuum centrifugation so that free oil is obtained. The free oil is merged to form the bitter apricot kernel oil with a high oil extraction ratio of 93-97%, high nutrient and active substance content, strong food safety (wherein cyanide residual quantity is 0.08mg / kg or less) and a long quality guarantee period of 5-6 years. The extraction method improves product quality and a yield, increases grease extraction by-product kinds, yield and added values, further reduces a grease extraction cost, prevents discharge of three wastes and protects the environment.

The invention discloses a low-temperature preservation method of a multifunctional 3D recombined skin model. The invention applies cytochalasin B to the solid preservation of the skin model for the first time, and adopts a three-step method for processing. The treatment method can maintain the model during transportation The cell activity in the skin can reduce the hypoxic damage of the cells, so as to ensure the accuracy of the 3D re-skin group model test and the vitality of the cells, and greatly extend the storage time.

The invention relates to a soft foundation riverway retaining wall, and belongs to the technical field of riverway protection construction. The soft foundation riverway retaining wall comprises original soil layers, bases, the retaining walls and pressing tops, wherein the bases are arranged at the bottom of a riverbed, and the bottom surfaces of the bases are fixed to the original soil layer at the bottom of the riverbed; the retaining walls are arranged on the bases and located on the original soil layer on the two sides of the riverway; and the pressing tops are arranged at the top of the retaining walls and fixed to the original soil layer on the two sides of the riverway. The retaining wall comprises a plurality of supporting columns vertically arranged on the two sides of the bases,a plurality of supporting tables horizontally connected between the supporting columns and a plurality of retaining bricks arranged between the two supporting columns and located between the two supporting columns, wherein the plurality of retaining bricks are fixed through connecting pieces. According to the soft foundation riverway retaining wall, floods can be effectively fought, meanwhile, thesubstance exchange capacity between a soil body and a water body can be improved, and the problem of water and soil loss is avoided.