100results about How to "reduce shipping costs" patented technology

The invention discloses a preparation method of a polyester type pure solid polycarboxylic acid high-performance water reducing agent, belonging to the field of water reducing agents. According to the invention, by taking a (methyl) acrylic acid monomer and a polyethylene glycol compound as reactants, a polymerizable macromonomer is prepared through esterification reaction under the effect of a catalyst, and the polymerizable macromonomer conducts a free radical bulk polymerization reaction with an unsaturated carboxylic acid monomer and a chain transfer agent under the effect of an initiator in an environment without any solvent to obtain the polyester type pure solid polycarboxylic acid high-performance water reducing agent. The method disclosed by the invention has strong process controllability, high degree of polymerization and low cost and prevents environmental pollution; a completely anhydrous polyester type pure solid polycarboxylic acid high-performance water reducing agent is prepared through esterification reaction and bulk polymerization, which has neat cement paste liquidity and holding ability, cement adaptability and concrete application performance similar to a traditional solution method; meanwhile, since the polymer product is an anhydrous pure solid, a solution with any concentration can be prepared according to actual needs; and without the after-treatment processes such as heating and drying, solvent separation and the like, the transportation is more convenient, and good market competitiveness and application prospects are realized.

The present invention provides a low-temperature transportation technology without water of live sturgeon; the transported live sturgeons are not fed for 2 to 3 days and put into water with a temperature of 1 to 2 Celsius degrees for precooling for 10 to 15 minutes; and then the sturgeons are put into an insulation box in which a seal bag is laid; the air in the seal bag is extruded and the seal bag is tied tightly after oxygen is infused; after the insulation box is sealed, the sturgeons can be transported and the transportation time is less than or equal to 18 hours. Compared with the prior art, sturgeon is a sub-cold water fish which has a low temperature resistant nature and the method makes use of the nature to freeze the sturgeons for transportation without water; in this way, the volume and weight of fish transportation tools are greatly reduced and at the same time the transportation cost is reduced which is convenient for vehicle or aviation transportation. The transportation time can reach 18 to 20 hours and the survival rate in transportation can reach more than 99 percent.

The invention belongs to the field of biochar adsorbing materials, and relates to a method for preparing modified biochar with aquatic plant waste and hematite. The method includes the following steps: (1) naturally drying aquatic plants prior to crushing to obtain aquatic plant powder; (2) crushing the hematite to obtain hematite powder; (3) weighing the hematite powder prior to putting the hematite powder into deionized water, and performing ultrasonic treatment to obtain suspension; (4) weighing the aquatic plant powder, soaking the aquatic plant powder in the suspension, and stirring and drying to obtain fully mixed aquatic plant and hematite mixture; (5) weighing the fully mixed aquatic plant and hematite mixture, putting the mixture in a batch-type atmosphere furnace, and feeding nitrogen into the furnace; performing temperature programming to the target temperature, and maintaining final-temperature pyrolysis; after the pyrolysis process is finished, obtaining the target product, namely the modified biochar. The modified biochar has strong adsorbability in nitrate and phosphate, high in stability and reusable.

The invention discloses a submerged plant underwater turf cultivation structure and a submerged plant underwater turf planting method. The submerged plant underwater turf cultivation structure comprises a lower clay layer laid in a hard seedling growing water pool with the flat bottom surface or a water tank, a seedling growing net frame made of degradable natural materials is laid above the lower clay layer, an upper clay layer is laid on the seedling growing net frame, the seedling growing net frame and the upper clay layer are bonded together to form a seedling growing base material, and the submerged plants are arranged on the seedling growing base material. The submerged plant underwater turf cultivation structure has the following advantages that the seedling growing base material is made of natural materials so as to be capable of degrading gradually after being planted underwater; the whole turf is flexible and cable be packed into a roll to be transported conveniently to greatly save transportation cost; due to large flexibility, the turf can be directly spread in planting and can be also cut into modules to plant in a scatter mode; and labor is saved, simultaneously operation in water in planting is reduced, and labor intensity is greatly reduced.

The invention relates to a raising method of endangered mangrove plant sonneratia paracaseolaris seedlings. The raising method comprises the following steps that (1) seeds are put in a 100-200 mg/L gibberellin solution to be soaked for 1.5-2 hours; (2) the soaked seeds are put in a seeding raising block; the seeding raising block is put in a greenhouse of 25-30 DEG C, and illumination is supplemented (the strength is 6,000-10,000 lux); a bactericide is sprayed; (3) seedlings with 3-4 main leaves are selected and transplanted into a seeding raising bag containing nutrient soil (sphagnum moss, sea mud and sea sand) together with the seeding raising block, and the seeding raising bag is placed on the hard cement floor; the seeding raising bag is watered with diluted sea salt water every day,and sun-shading is carried out; (4) sterilization, insect killing and topdressing are carried out; (5) after the stems of the seedlings are lignified, a sunshade net is removed, and the seedlings arewatered with the diluted sea salt water every day; (6) the sonneratia paracaseolaris seedlings are transplanted to the wild for planting after growing to more than 40 centimeters. The raising method of the sonneratia paracaseolaris seedlings which has the advantages that the seed germination rate reaches 82-95%, and the seedling rate reaches 73-94% is provided by reasonably preparing the nutrientsoil and reasonably regulating and controlling operating parameters of seed treatment, germination, transplanting and the like.

The invention provides a corrugated steel plate city underground comprehensive pipe gallery with an arch-shaped cross section. The corrugated steel plate city underground comprehensive pipe gallery with the arch-shaped cross section comprises a pipe gallery base structure which is arranged at the bottom. A pipe gallery main body which is composed by corrugated steel plates in an enclosed way is fixed above the pipe gallery base structure. The cross section of the pipe gallery main body is in an arch shape. An internal separating wall structure is arranged in the pipe gallery main body along the longitudinal direction of the pipe gallery main body. The interior of the pipe gallery main body is separated into a plurality of chambers which are separated from each other in a sealed way by the internal separating wall structure and a supporting frame structure used for erecting underground pipelines is arranged in each chamber. According to the city underground comprehensive pipe gallery, the problems that the prior art is heavy in weight, slow in construction speed, high in cost and the like can be overcome and the objective of light weight, fast construction speed and low cost can be realized; moreover, the inner space of the pipe gallery is separated into a plurality of chambers which are separated from each other in a sealed way by the internal separating wall structure which arranged in the pipe gallery main body and pipelines of water, heat and electric are laid in a partition way, so that laying and management of the pipelines are convenient and the safety can be improved at the same time.

The invention discloses a multifunctional digital X-ray image shelter. The shelter can provide a traditional X-ray perspective image and conventional radiography, and can also provide CT (Computerized Tomography) image information; rapid three-dimensional structure imaging can be carried out on any part of a whole body and 3D printing can also be provided; and requirements on sending or storage of a lot of surgical instruments and customized prosthesis are replaced. Therefore, the cost of transporting the instruments to a surgery field can be reduced, and the time of establishing prosthesis implants or tools for surgeries is shortened. The multifunctional digital X-ray image shelter can be used for various positions and the mobility conveniently provides all useful application to medical and/or laboratory services. For example, the multifunctional digital X-ray image shelter is applicable to natural disaster regions in which electric power infrastructures and entering equipment are possibly interrupted, and medical centers of the regions are endangered; or the multifunctional digital X-ray image shelter is applicable to other remote regions which do not need to be located in war zones of wars.

The invention discloses a red mud mesh gel foam mud fire prevention and extinguishing agent. The key point of the technical scheme adopted by the invention lies in that the red mud mesh gel foam mud fire prevention and extinguishing agent is composed of a red mud composite flame retardant foaming agent, attapulgite pottery clay powder with an air purifying function, inorganic fiber spray coating cotton, acidified red mud powder, coal gangue powder, expanded perlite powder, sodium alginate and water. The ingredients of the red mud mesh gel foam mud fire prevention and extinguishing agent are input into a rake type mixing machine to undergo high-speed stirring, thus obtaining the red mud mesh gel foam mud fire prevention and extinguishing agent. The mesh gel foam mud is sprayed to a burning coal layer by an inorganic fiber spray coating machine, thus facilitating generating an integral mesh gel foam mud film in a fire prevention and extinguishing process. The film can always cover and adhere to an ore bed surface to rapidly isolate the burning coal layer from air, prevent coal mine from keeping burning and avoid reburning of the coal layer, thus reaching the purposes of flame retardance and fire prevention and extinguishing. The red mud mesh gel foam mud fire prevention and extinguishing agent is suitable for fire prevention and extinguishing of coal mines, mine operation areas and forests.

The invention discloses a container type photovoltaic power generation system, and belongs to the photovoltaic power generation technology field. The system comprises a container, a first photovoltaicmodule, a second photovoltaic module, a solar tracking sensor and a controller. First sealing cover mechanisms used for closing or opening a left side and a right side of the container are arranged on the left side and the right side of the container. A second sealing cover mechanism used for closing or opening a top end of the container is arranged at the top end of the container, a partition plate is fixedly installed in the container and divides a space in the container into an upper-layer accommodating cavity and a lower-layer accommodating cavity, the first photovoltaic module is locatedin the upper-layer accommodating cavity, and the second photovoltaic module is located in the left side and the right side of the lower-layer accommodating cavity. In the invention, the first photovoltaic module and the second photovoltaic module are accommodated in the container so as to achieve overall transportation of a power generation device, improve maneuverability and reduce transportation cost, and a defect that an existing photovoltaic power station cannot be moved and must be installed at an installation site is overcome.

The invention discloses a small rotor flying robot for medical assistance and belongs to the technical field of robots. The small rotor flying robot for medical assistance is used for transportation of medical assistance medicine and medical instruments in heavy-traffic cities or remote mountainous areas. The small rotor flying robot for medical assistance comprises a machine body, an autopilot system and a medical assistance system, wherein the autopilot system comprises a sensor subsystem, a flight control computer and a servo power system, the flight control computer is connected with the sensor subsystem and is used for processing data obtained by the sensor subsystem, and the flight control computer is connected with the servo power system and is used for controlling work of the servo power system and adjusting the flight speed and flight attitude. The small rotor flying robot for medical assistance has the advantages of being low in cost, fast and accurate in positioning.

The invention relates to a connecting joint for a beam, a column and an inclined strut of a box section of a boiler steel frame and a construction method of the connecting joint. The connecting joint comprises a joint plate, a column end plate, a beam end plate and a connecting end plate, wherein the joint plate is fixed with the inclined strut by welding; the column end plate is fixed on the joint plate by welding, and is connected with a column bolt; the beam end plate is fixed on the joint plate by welding, and is connected with a beam bolt; and the connecting end plate is fixed on the beam by welding, and is connected with the column bolt. The construction method comprises the following steps of: welding the joint plate, the column end plate and the beam end plate, and connecting the column end plate and the beam end plate with bolts; and performing welding and bolt connection on the connecting end plate. According to the invention, the joint size is reduced greatly, the requirements of other transportation tools are met, and the transportation cost is reduced.

The invention relates to a spring clamp that comprises the base and compression part that can be installed together in motion, with the compression part lean against the base tightly under the action of the spring, with the suspension spring clamp hanger being able to be installed to the base of the said base. It can select whether to expose the hanger from the body of the spring clamp or hide it.

The invention discloses a reinforcement cage manufacturing device. The reinforcement cage manufacturing device comprises a box body and a reinforcement cage manufacturing mechanism, wherein the box body comprises a framework, a bottom plate arranged at the bottom of the framework, a top cover arranged at the top of the framework, a left side door leaf, a right side door leaf, a rear end door leafpivoted to the top of the rear end of the framework, a front end door leaf pivoted to the top of the front end of the framework and a supporting door leaf pivoted to the bottom of the front end of theframework, wherein the left side door leaf and the right side door leaf are pivoted to the top of the left side and the top of the right side of the framework respectively, the bottom plate can be used for placing the reinforcement cage manufacturing mechanism, the reinforcement cage manufacturing mechanism comprises a guide rail which is detachably arranged on the bottom plate, a rotary disc mechanism matched with the guide rail in a sliding mode and a moving mechanism, and the supporting door leaf can be opened to enable the top surface of the supporting door leaf and the top surface of thebottom plate to be in the same horizontal direction so that the guide rail can extend to the top surface of the supporting door leaf. According to the device, the automatic on-site production of a reinforcement cage can be realized, the transportation cost is reduced, the occupied space of the site is reduced by means of the modular design, and whole hoisting is facilitated.

The invention discloses an intelligent holographic targeted public transportation system and an achieving method thereof. The system and the method mainly solve the problem that the traffic burden is increased due to the low punctuality rate, the low comfort level, the low convenience and the long driving time of buses caused by the lack of a complete vehicle scheduling system in the prior art. The intelligent holographic targeted public transportation system comprises an information collection platform, a data processing center, a vehicle scheduling platform and a user terminal, wherein the information collection platform is used for collecting user riding information, vehicle driving line information is stored inside the data processing center, the data processing center is connected with information collection platform through a network and processes the collected information, the vehicle scheduling platform exchanges information with the data processing center through the network, and the user terminal exchanges information with the vehicle scheduling platform and the data processing center through communication or the network. According to the scheme, by the aid of the system and the method, the utilization ratio of public transportation vehicles is fully guaranteed, so that the traffic burden and operating costs of vehicles are effectively reduced, and the system and the method is high in practical value and popularization value.

The invention discloses an underground mine and ore lifting method. The underground mine and ore lifting method comprises the following steps: step (1) crushing mined ores underground; step (2) grinding the ores crushed in the step (1) underground; step (3) preparing the ores ground in the step (2) underground into slurry; and step (4) pumping the ore slurry in the step (3) to the ground by a slurry conveying pipeline. Compared with a traditional lifting method, the underground mine and ore lifting method has the advantages of transportation cost conservation, zero pollution to the environment, high transportation efficiency, great conveying capability and the like.

The invention discloses a simple spread cultivation method for photosynthetic bacteria for treating landscape water, belonging to the technical field of biology and being used for solving the problem of overhigh use cost of the traditional photosynthetic bacteria for treating landscape water. The method comprises the following steps of firstly, providing a photosynthetic bacterium strain; secondly, preparing a bacterium culture medium; next, inoculating photosynthetic bacterium strains to the bacterium culture medium according to a reserved number to obtain a photosynthetic bacterium inoculation solution; finally, placing the photosynthetic bacterium inoculation solution under the sun to culture for reserved days to obtain a photosynthetic bacterium fermentation solution, wherein 20-25% of photosynthetic bacterium fermentation solution can be retained for the photosynthetic bacterium strain, the rest of the photosynthetic bacterium fermentation solution can be directly used for treating landscape water on site, and the original photosynthetic bacterium strain can be repeatedly cultured 2-3 times. By using the method, not only is the transportation cost of a photosynthetic bacterium solution reduced, but also the quality stability of the photosynthetic bacterium solution for treating the landscape water is ensured.

The invention provides a delivery device and delivery method for open-cast mining, which can solve the problems in the prior art that the transportation cost is high and the efficiency is low due to adoption of a single-bucket truck for transportation. The delivery device for the open-cast mining comprises a pit material conveyor, a crusher, a material output machine, a material hoister and a ground material conveyor, wherein the pit material conveyor is parallel to the mining surface of a pit, and is connected to the material delivery inlet of the crusher, and the material delivery outlet of the crusher is connected to the material conveyor; the material hoister comprises a lower part horizontal section, a middle inclined hoisting section and an upper part horizontal section, and the lower part horizontal section is connected with the material output machine. Through the adoption of the delivery device, the transportation for an open pit mine is facilitated greatly, the transportation cost is reduced, and the transportation efficiency is improved; the conveyor belt of the material hoister is a steel wire rope composite elastomer high tenacity hoisting conveyor belt, the tenacity is high, the stiffness is large, and the connection strength of a diaphragm plate and a base band as well as the diaphragm plate and the flange is high, so that large dip angle and long distance hoisting can be realized, and vertical hoisting can be also realized.

The invention discloses a vehicle-mounted CT (computed tomography) with three-dimensional printing. A cabin can not only provide traditional X-ray fluoroscopy images and conventional radiographs, but also provide CT image information, can carry out fast three-dimensional structure imaging on any part of the body and provide 3D printing, and can replace the need to send or store a large number of surgical instruments and customized restorations. The cost of transportation to surgical sites can be reduced, and the time required to create a surgical repair implant or tool can be shortened. The vehicle-mounted CT can be used in any application that the mobility at various locations is useful for providing convenient medical and/or laboratory services. For example, the vehicle-mounted CT can be used in a natural disaster area where the electricity infrastructure and equipment may be interrupted, and the medical centers in the area are damaged, or other remote areas in war zones that are not necessarily in war.

The invention provides an optimal-friction-resistance cast-in-place pile type and a construction method therefor. The pile type comprises an engineering truck having an autocrane and a hydraulic pile expander, as well as a hydraulic pile-expander digital display system, and is characterized in that the hydraulic pile expander of the engineering truck is horizontally arranged and fixed between a cab and a crane-operating room, and pile-expanding cones of the on-vehicle pile expander are in hydraulic multi-cylinder synchronization. The optimal-friction-resistance cast-in-place pile type manufactured by the pile expander is characterized in that a plurality of groups of convex rectangular force-bearing cones in radial symmetry are arranged on a cylindrical pile body, perpendicularly intersect at an axis, and are staggered and distributed in the axial direction of the pile body. The construction method for cast-in-place piles comprises the following steps that: a plurality of pile-expanding cones in the pile expander simultaneously start to apply transverse extrusion force to a soil layer around a borehole; the previous operation is repeated till all force-bearing cone holes of borehole-extruding pile expansion are finished; and the engineering truck retracts and places the pile expander horizontally in a truck body and carries the pile expander to next hole position. The invention has the advantages that the invention increases the surface area of the pile body with the same specifications by 45 to 50 percent, and can obtain the economic benefit of saving 40 to 45 percent of materials and saving 30 percent of investment on the premise of guaranteeing the same degree of single-pile bearing capacity.

The invention relates to an on-line test method for rock mixing rate of iron ore, which is characterized by comprising the following steps of: combining an ore transport vehicle GPS positioning system with an ore GIS system having independent characteristics; automatically tracking the source of the ore by transport vehicle automatic identification devices which are arranged at each ore discharge port of a stope and along iron ore transport lines; transmitting identification signals sent by the automatic identification devices to a computer; arranging a dry separation weight tester under an ore feeding belt conveyer of a dry-type magnetic separator to test a throughput of the ore discharged by a crusher, and arranging a tailings weight tester under a tailings belt conveyer of the dry-type magnetic separator to test the throughput of the ejected rocks; converting an ore throughput signal and a rock throughput signal of the two weight testers by an A/D converter, and transmitting the converted data into the computer; automatically calculating the rock mixing rate of the extracted ore of the stope through a rock mixing rate calculation formula by the computer, and transmitting the calculated rock mixing rate to a display device in a production scheduling system for display. The on-line test method for the rock mixing rate of the iron ore is helpful for production schedulers and stope cammanders to know well the rock mixing rate of the ore of each stope, and can provide a significant basis for guiding production.

The invention provides a water-soluble setting accelerator, which is prepared from the following production raw materials in parts by mass: 174 to 212 parts of sodium hydroxide, 226 to 188 parts of aluminum hydroxide, 1 to 8 parts of potassium sulphate and 1 to 8 parts of sodium carbonate. According to a preparation method, firstly, 100 parts of water is contained in a reaction kettle; the sodiumhydroxide is added; heating and stirring dissolution are performed; then, the aluminum hydroxide is added; the continuous stirring and heating are performed to 100 DEG C to 130 DEG C; after the aluminum hydroxide is completely dissolved; the potassium sulphate and the sodium carbonate are added; the stirring is continuously performed; after the complete dissolution, the materials are pumped into aspraying tower by a pump; drying dewatering is performed; the water-soluble setting accelerator is obtained. The water-soluble setting accelerator has the beneficial effects that the materials are solids in the transportation process; the transportation cost is low; the transportation cost is reduced; the defects of easy leakage, too high packaging cost and great storage occupied area in the liquid setting accelerator transportation process are overcome; the preparation process is simple; the production cost is low; no pollution is caused.

The invention provides a high-toughness resin coating internal crosslinking type dispersing agent and a preparation method thereof. The dispersing agent is mainly prepared from the following components: 36.70 to 38.63 parts of polyether alcohol, 257.74 to 271.67 parts of a cyclic monomer, 0.5 to 1.2 parts of a catalyst, 76.56 to 80.70 parts of a cationic monomer, 1.5 to 3.9 parts of a reducing agent, 2.4 to 5.8 parts of an initiator, 2.2 to 6.1 parts of a neutralizing agent, 0.5 to 2.7 parts of a chain transfer agent and the balance of deionized water. According to the invention, polyether is used as a branch chain of the dispersant to prepare a short-side-chain high-toughness resin internal crosslinking dispersant, the adsorption performance of the dispersant is improved by using the short side chain, and the steric hindrance effect of the dispersant is improved by reducing the acid-ether ratio and improving the spatial density of the short side chain.

The invention discloses a cast-in-place externally prestressed concrete-filled steel pipe pile, which comprises a steel pipe, a concrete layer cast-in-place in the steel pipe and multiple prestressed tendons arranged on the steel pipe, wherein the prestressed tendons are arranged along the direction of the axis of the steel pipe, and comprise top sections, middle sections and bottom sections; the middle sections are positioned outside the steel pipe; the top sections and the bottom sections penetrate through the wall of the steel pipe and enter into the steel pipe; the upper end of the steel pipe is opened, and the bottom end of the steel pipe is provided with a sealed structure. The invention also provides a construction method of the concrete-filled steel pipe pile and a support pile wall with the concrete-filled steel pipe pile. In the way, the external prestressing technology is adopted by the cast-in-place externally prestressed concrete-filled steel pipe pile, a pile body can be restrained better, the tensile resistance is provided, and deformation of the support pile wall in the excavation process of a foundation pit is effectively limited; in addition, field fabrication can be performed, transport costs are reduced, on the premise of guaranteeing safety and reliability of a foundation pit support, the cost is reduced, the construction period is shortened, and construction is convenient.

The invention discloses an industrial 3D simulation machine tool structure that is easy to disassemble and adjust. A fixing groove is provided, and limit grooves are arranged on both sides of the fixing groove, threaded sockets are arranged on the surface of the mounting plate, fixed slide rails are arranged on both sides inside the machine tool body, and the load-bearing rod passes through the connecting slide The block is connected with the fixed slide rail, and the lifting sleeve is connected with the connecting plate through the supporting rod connected above. The industrial 3D simulation machine tool structure is easy to disassemble and adjust. There are two kinds of threaded sockets on the mounting plate, so that different processing machines can be installed on the mounting plate, so that in actual use, the machine tool can realize a variety of industrial production. Function, the machine tool body and the support rod can be disassembled and installed conveniently, which is conducive to disassembly and transportation and reduces transportation costs.

The invention relates to a continuous mixing device and a continuous mixing method of a fracturing fluid. The continuous mixing device comprises a first mixing unit, a second mixing unit, a third compounding unit and a detecting unit which are connected in sequence. The continuous mixing method comprise the following steps: preparing a first mixed solution, adding an additive, preparing a second mixed solution, detecting, and discharging. The continuous mixing device and method provided by the invention can be used for mixing fracturing fluid rapidly and efficiently on site, thus the transportation cost can be lowered, the work efficiency can be improved, and the investment of labor force can be reduced. The continuous mixing device and method can be particularly popularized and applied to large-scale fracturing during shale gas development.

The invention discloses a wet tissue substitute convenient for a baby to use. The wet tissue substitute comprises a packaging bag and a dry wet tissue contained in the packaging bag. The dry wet tissue is formed by a non-woven fabric layer and auxiliaries added on the non-woven fabric layer, and the auxiliaries can be arranged on the non-woven fabric layer and can also be arranged inside the non-woven fabric cloth. Non-woven fabric is formed by processing bamboo fibers, and the residual space, except the dry wet tissue, in the packaging bag contains plain boiled water, wherein the weight of the plain boiled water is 3.5 times that of the non-woven fabric layer. Compared with the prior art, due to the fact that a preservative does not need to be added for mold prevention, use is more healthy and safer, and the wet tissue substitute is especially suitable for the baby. Furthermore, due to the fact that the whole wet tissue substitute is dry, the weight of the wet tissue substitute can be lowered to one fifth of the original weight under the same sheet number and the same size, the transportation cost is greatly lowered, and better energy conservation and better environmental friendliness are achieved.

The invention discloses a method and device for optimizing a carpool route, a storage medium and a computing device. The method includes determining a path distance from a departure place to each target distribution point and determining a path distance between each target distribution point; determining the cost of order delivery from the point of departure to each target distribution point and the cost of order delivery between target distribution points; the multiple carpooling routes randomly generated from the point of departure through each target distribution point being taken as a population, using carpool routes randomly generated from the point of departure through the target distribution points as individuals of the population, based on population, the route distance from the departure point to each target distribution point, the route distance between each target distribution point, the order delivery cost from the departure point to each target distribution point, the order delivery cost between each target distribution point, and the carpooling order of the carpooling routes generated from the departure point through each target distribution point being determined byusing the genetic algorithm. Through the scheme of the invention, the transportation cost can be reduced and the logistics service quality can be improved.

Provided is a highly reliable packaging element and also attain cost reduction in transportation when a wafer is transported. A fixation is carried out with rubber or tape 10 by sticking a protecting sheet 5 on the whole surface of the top face of the wafer 1, on the other hand, after sticking a dicing tape 6 on the whole surface of the undersurface of the wafer 1, by piling up the wafer 1 by inserting the first shock absorbing material 7 of the dimensions being fit to the size of the wafer 1 among these two or more wafers 1, finally, by disposing the second shock absorbing material 8 to both ends, and by wrapping the whole in a plastic bag 9. In accordance with this invention, since the protecting sheet 5 and the dicing tape 6 are stuck to both the ends of the wafer 1 and the whole surface is covered, the first shock absorbing material 7 which will be inserted between the wafers 1 is not needed to work into a frame shape, thus, the working costs of the first shock absorbing material 7 can be reduced sharply.

The invention discloses a preparation method of a nisin aqueous solution with high clarity and high potency. The preparation method comprises the following steps: (1), taking nisin powder of which the potency is larger than 35000 IU/mg, and adding into distilled water to prepare an aqueous solution of which the potency is 50000 IU/mg; (2), carrying out ultrafiltration treatment on the aqueous solution through a 2000 D ultrafiltration membrane, so as to obtain a clear aqueous solution; (3), filtering the clear aqueous solution through 0.2 mu m microporous filtering membrane after sterilizing for 10 min under the temperature of 80 DEG C, so as to obtain the nisin aqueous solution. The nisin aqueous solution is prepared by taking high-purity nisin as a raw material, filtering through the ultrafiltration membrane, desalting and condensing by a reverse osmose membrane, the potency of the nisin aqueous solution is higher than 1000000 IU/mL, can be placed for one year without turbidity, and can be widely used in preservation of beverages, healthcare products, green products and the like.

The invention discloses an organochlorine pesticide polluted site soil remediation pretreatment device and a method, and relates to the technical field of soil pollution treatment.The device comprises a soil turning device, a vehicle head, a carriage, a cab, a screening device, a conveying device, a high-temperature drying device, a plasma cracking reactor, a fungicide bin and a mixing bin; the soil turning device is rotatably installed at the front end of the vehicle head, the cab is fixedly installed above the vehicle head, and the carriage is fixedly installed behind the vehicle head. According to the device, a movable vehicle is taken as a carrier, soil containing organochlorine is treated. Compare with a conventional soil treatment method, according to the device, soil does not need to be transferred, the transportation cost is saved, the treatment cost of organochlorine pesticide soil is greatly reduced, and the device has a large popularization space.