188 results about "Transportation distance" patented technology

The present invention discloses a logistics distribution path optimization method, apparatus and device, and relates to the technical field of logistics distribution. The logistics distribution path optimization method, apparatus and device consider time window factors of a distribution center and distribution points to obtain vehicle scheduling information which better meets actual logistics demands. The method comprises the steps of: obtaining user information of users to be distributed; according to the user information, determining receiving time, receiving addresses and cargo demand amounts corresponding to the users to be distributed; according to the receiving addresses, calculating transportation distances and transportation time between the users to be identified; and according tothe transportation distances and the transportation time, combining the receiving time, the cargo demand amounts and one predetermined truck cargo capacity of each truck, employing a preset vehicle scheduling algorithm, and calculating and obtaining vehicle scheduling information comprising logistics distribution paths. The logistics distribution path optimization method, apparatus and device aresuitable for optimization of the logistics distribution paths.

The invention discloses a positive pressure bundle pipe monitoring system for mine underground fire and toxic and harmful gas, belonging to the technical field of mine safety monitoring. The positive pressure bundle pipe monitoring system comprises a gas positive-pressure transportation system, a gas analysis system, a control system, a data acquisition system and a workstation. The system transports gas in a monitored area in a centralized positive pressure transportation manner to certain underground or ground sites to perform centralized detection on the components and the concentrations of the gas. Because the gas is transported in the positive pressure manner, the components and the concentrations of the gas in the gas transportation process are not distorted at all, the pipe is not easy to block, the transportation distance is long, no external water enters, whether the pipeline is damaged to leak gas is easy to detect, the gas can automatically enter the analysis detection device, and the detection result is accurate and reliable. The positive pressure bundle pipe monitoring system is applicable to the analysis and monitoring of coal spontaneous combustion in coal mines, exogenous mine fire and toxic and harmful gas in coal mines, and is also applicable to the analysis and monitoring of metal mine fire and toxic and harmful gas.

The invention discloses a run-through inner dumping method between mining areas for an opencast coal mine during the period of diversion. The method comprises the following steps: a mining area I extends to the terminal, a trapezoidal mining empty trench is reserved in the overlapped range of the mining area I and a mining area II during the transition period that the mining area I is turned to the mining area II; the working pit edge of the mining area I extends forwards, while the length of the trapezoidal mining empty trench in the moving direction is increased gradually; a middle bridge I is put up on the trapezoidal mining empty trench and used for connecting an inner waste dump and the working pit edge of the mining area II; the inner waste dump extends forwards to one third of the length of the working pit edge of the mining area II, and then a middle bridge II is put up; when the inner waste dump extends forwards to two third of the length of the working pit edge of the mining area II, a middle bridge III is put up; after diversion is completed, the working pit edge of the mining area II extends forwards continuously, the mining area II extends downwards, the middle bridge I, the middle bridge II and the middle bridge III are alternately communicated in a stepped-forwards manner, so that the tasks of stripping and mining in the mining area II are completed. The run-through inner dumping method disclosed by the invention has the advantages that secondary stripping amount between adjacent strip-shaped areas is avoided or eliminated, the inner dumping transportation distance of the stripped materials is shortened, and the costs of transportation and stripping are reduced.

When a label printer detects the paper width, the paper width detection operation scans the transportation path in the paper width direction by the paper width detector not once but twice, and conveys the recording medium transportation distance L, which is longer than the gap length of the gap between labels and is shorter than the label length of each label, between the first and second paper width detection operations. Of the two positions detected as the left edge of the recording medium in the first and second detection operations, the position that is farthest left is used. Likewise, of the two positions detected as the right edge of the recording medium in the first and second detection operations, the position that is farthest right is used.

A printer driver conserves recording paper by removing blank space formed at the top and bottom of each page when printing. The printer driver 9 acquires the coordinates of the top and bottom of the part of the print image that is not blank space from the print image B of the print data for one page, and calculates the page length L required to print the middle area H between the top and bottom blank space areas based on these coordinates. The area print data for printing this middle area H is then extracted and printed. When printing is completed, the recording paper 11 is conveyed only the difference N between the page length L and the transportation distance M of the recording paper 11 to set the print head 10 to a position separated only the page length L from the printing start position of the area print data, that is, to a position touching the middle area H. As a result, only the middle area H for each page is printed to the recording paper 11. Blank space between the middle areas H of consecutively printed pages is also eliminated.

The invention discloses a large slope lifting device for a strip mine dump truck. The large slope lifting device comprises a power lifting device, a guiding device, a limiting and positioning device, a monitoring and controlling device and a safety protection device. A motor and a drum hoist are arranged on the ground. U-steel tracks are laid on the slope of a mountain through sleepers. The U-steel tracks are divided into an upper part and a lower part, and the upper U-steel tracks and the lower U-steel tracks are provided with a first wheel-type trolley and a second wheel-type trolley respectively. A wire rope winds across guide wheels and fixed pulleys located on the first wheel-type trolley and the second wheel-type trolley to be connected with the drum hoist. According to the large slope lifting device for the strip mine dump truck, the lifting angle is large, the side slope of a mine field can be fully utilized, and thus the excavation amount of infrastructure is reduced. The limiting and positioning device can contribute to stability of mine cars in the lifting process. By means of large slope lifting, the transportation distance and time are greatly shortened, transportation efficiency is improved, and tail gas pollution is reduced. The monitoring and controlling device can control the safety protection device to act in the derailing process, and therefore safety during transportation is improved.

The invention discloses a multi-tug cooperative open caisson floating transportation manipulation simulation control method. The method is in allusion to that scale parameters of a pipe section are very special, the floating transportation process is affected by multiple factors such as channel conditions, the floating transportation distance, the hydrology, the meteorology and the like, and difficulties of heavy water transportation and cooperative towing of multiple tugs are required to be overcome at the same time. According to the invention, the whole process of immersed pipe floating transportation manipulated and towed in a cooperative mode by six tugs under different wind, wave and flow sea conditions is simulated through continuously changing the towing power and the position of the tugs, stress analysis is carried out on the towing force for the immersed pipe every time when the position of the immersed pipe is changed, the manipulating modes of different tugs are adjusted, the single and total tug stresses and a resultant force received by the immersed pipe are calculated, moving postures of the immersed pipe are displayed in an immersed pipe floating transportation towing system, and curves of the cycle time, the track belt width, the tug service power and the like are acquired. The method disclosed by the invention can realize selection and tests for channels, steering areas, foundation trench towing modes and turning modes of each tug, evaluates the controllability, gives an advice on the size of a steering water area and the towing cable length, and judges whether configuration of the tugs is reasonable or not.

The invention provides a high-slump-resistance polycarboxylate water reducer. The high-slump-resistance polycarboxylate water reducer is composed of, by weight percentage, 10-25% of polycarboxylate slump-resistant mother liquor, 28-35% of polycarboxylate water reducing mother liquor, 4% of setting retarding components and water as balance. By adding in hydrophobic slow release ester groups, the high-slump-resistance polycarboxylate water reducer can avoid being adsorbed by cement particles during the early stage of cement hydration and meanwhile can be slowly released inside alkaline solutioninto water reducer molecules with water reducing effects to achieve water-reduced dispersion; the release speed can be adjusted according to requirements on environment, alkalinity and construction and by changing the number of slow release groups and the molar mass ratio of acid esters. By compounding the polycarboxylate slump-resistant mother liquor and the polycarboxylate water reducing motherliquor, the high-slump-resistance polycarboxylate water reducer is low in mixing amount and high in water-reducing and slump-resistant performance; the slump-resistant time can be flexibly adjusted according to the requirements on construction concrete transportation distance and time, the concrete slump-resistant time can be prolonged by 1-4 hours, so that high cement adaptability can be achieved.

The invention discloses an automatic container wharf handling system for right-angled shoreline multi-berth arrangement. The system is composed of a shore bridge, a straddle carrier, an ARMG and an overhead travelling crane subsystem. The overhead travelling crane subsystem is composed of a viaduct and an overhead travelling crane. The shore bridge is arranged on the front edge of a front face berth and the front edge of a side face berth. The shore bridge is used for perpendicularly and horizontally transporting containers from a container ship to a shoreside working area. An ARMG track of a container yard is arranged perpendicular to the front berth shoreline. The area, closely adjacent to the front face berth end, of the container yard is the front face berth end of the yard. The area, closely adjacent to a rear collecting and distributing channel, of the container yard is a yard land side end. The area, closely adjacent to the side face berth end of the yard, of the container yard is the side face berth end of the yard. According to the automatic container wharf handling system, cross operation possibly caused during joint operation of the front face berth and the side face berth can be reduced to a larger extent, meanwhile, the transportation distance of horizontal transportation equipment inside a side face berth port is decreased, and therefore the handling efficiency and the energy-saving level of the whole system are improved.

The invention discloses normal-temperature and low-temperature preservation diluents of milk goat seminal fluid. Each normal-temperature and low-temperature preservation diluent comprises the following main ingredients: tris(hydroxymethyl)aminomethane, citric acid, fructose, mycose, vitamin C, bovine serum albumin, reduced glutathione, triphosadenine and compound antibiotics, and specifically, the low-temperature preservation diluent contains yolk. The normal-temperature and low-temperature preservation diluents provided by the invention can store the seminal fluid in a liquid state effectively for a short time so as to meet the artificial insemination requirement, solve the problems of short storage time limit after semen collection in a male animal station and long transportation distance between semen collection points and semen transportation points, and improve the storage quality and time effectiveness of fresh semen, thereby improving the excellent breeding animal utilization ratio and acquiring a high conception rate; meanwhile, preparation methods of the diluents are simple, the operation is simple, and the diluents are low in production cost and convenient for popularization and application on a large scale.

The invention provides a concrete prefabricated component production line, including a conveying track and a die table moving on the conveying track. The concrete prefabricated component production line further comprises a marking station, a die filling station, a first reinforced bar arrangement station, a pre-buried station, a first pouring and vibrating station, a second reinforced bar arrangement station, a second pouring and vibrating station, a first surface flattening station, a first pre-maintaining station, a first surface troweling station, a first maintaining station, a die removingstation and a rollover hoisting station that are arranged on the conveying track and capable of enabling the die table to transfer. The die filling station and the die removing station are arranged on the same side of the maintaining station. The first pouring and vibrating station and the second pouring and vibrating station are arranged opposite to each other. The concrete prefabricated component production line does not hinder the transportation of dies due to too great height of equipment placed in the maintaining station, thereby shortening the transportation distance of the dies, shortening the transportation distance of the concrete slurry, and effectively reducing the production cost. In addition, the production line enables the production of a variety of different prefabricated components.

The invention discloses a logistics freight rate automatic calculation system. The system comprises a terminal all-in-one machine and a central processing system; the terminal all-in-one machine comprises a weighing module, a volume measurement module, a printing module, a computer host, an input display module, a power source and a data transmission module. According to cargo measurement and input volume, weight and transportation distance, the working method of the logistics freight rate automatic calculation system performs pricing with four pricing modes of bulky cargo drayage fixed price, linear accumulation between the bulky cargo volume and the distance, heavy cargo drayage fixed price and linear accumulation between the heavy cargo weight and the distance. According to the logistics freight rate automatic calculation system, cargo consignment links are greatly simplified, and human resources and time of logistics companies and clients are saved. Use of paper receipts is reduced, and environmental protection is achieved. Real-time data of a booking note are uploaded, and processing delay caused by procedure running of the logistics companies is reduced. The cargo weight is read by a machine, and reading is objective and accurate. The data of the booking note are stored in a mass mode, and the trouble for managing the paper receipts is saved. The cargo freight is calculated automatically, quickly and accurately.

The invention relates to a logistics distribution vehicle scheduling method based on an improved A* algorithm, and proposes a plan for vehicle scheduling, route selection and route planning in logistics distribution including two parts: an improved A* algorithm and a logistics distribution algorithm. The improved A* algorithm is used to quickly search for the optimal path between two points, including: meshing the distribution area, preferably selecting the appropriate evaluation distance, and recursively searching for the shortest distance. The logistics distribution algorithm is used to generate vehicle information sent from the distribution center to each customer node, the vehicle information includes vehicle numbers, passing customer nodes, vehicle routes, load capacities, and total distances of the routes, and the logistics distribution algorithm includes two parts of calculating distances and routes from the customer nodes to the logistics center, and generating the distributionplane with the improved weighted graph algorithm. This scheduling method considers the constraints in the vehicle path, reduces the total transportation distance, enhances the overall control and management of the logistics distribution process, and achieves a more economical distribution line.

The invention discloses a method for transporting and domesticating plateau fish seedlings. The method comprises the following steps of A, seedling selecting: selecting plateau fish seedlings obtained from fish production in plateau sections and artificial incubation by research and development institution or wild plateau fish seedlings caught in the field; B, long-distance transporting, wherein the transportation time is selected in spring or autumn; C, recovering after transporting: after arriving at the destination, putting fish seedling bags into a temperature control aquaculture barrel to balance water temperature, fishing out the fish seedlings after finishing disinfection, and transferring to the temperature control aquaculture barrel to be domesticated temporarily; D, daily domesticating: temporarily domesticating the fish seedlings in a closed recirculation water system, adopting ultraviolet light to disinfect circulating water, illuminating for 12L:12D, feeding for two times every day, cleaning residual feeds and faeces after feeding, and keeping the aquaculture water quality to be clean. The method is easy to be implemented, and is simple and convenient to be operated, high in fish seedling survival rate, stable in growth, and solves the difficult problem that the domesticating survival rate of the fish seedlings in the inland is low caused by the factors such as large altitude difference and temperature difference and long transportation distance when the plateau fish seedlings are transported to the inland regions and being domesticated.

The invention provides a macadam slope vegetation recovery structure and a construction method, and relates to the technical field of slope restoration. According to the macadam slope vegetation recovery structure, by means of matched arrangement of a covering soil layer, a first protection layer, a base layer, a planting layer and other specific structures, the slope stability can be effectivelyenhanced, ecological restoration on a macadam slope is achieved, the needed covering soil is greatly reduced, and the technical problem that the covering soil layer is large in thickness, the soil volume is large, and a soil source cannot be guaranteed due to the fact that direct soil covering is adopted for plant cultivation in the prior art is relieved. In addition, the macadam slope vegetationrecovery structure can control the macadam slope locally, macadam clearing and carrying expenses are saved, the cost is greatly reduced, and the technical problem that due to the fact that in the prior art, a machine is adopted for clearing and carrying the macadam slope in the prior art, the stacking place is limited, the transportation distance is long, and the clearing and carrying cost is highis relieved. The construction method of the macadam slope vegetation recovery structure is further provided.

The invention is feed suitable for supplementary feeding of tibetan sheep ewe in pregnancy in alpine pastoral areas of tibetan plateau and a preparation method thereof, and is characterized in that corn, highland barley, table salt, a composite premix, and a rape cake are scientifically blended according to the nutritional requirement characteristics of tibetan sheep in pregnancy, and are processed into particle feed which is suitable for feeding and transportation and is used for correct supplementary feeding of tibetan sheep ewe in pregnancy. According to the invention, a supplementary feeding formula which is determined to be suitable for local agricultural and sideline product resource conditions and the nutritional requirement characteristics of tibetan sheep is adopted; by supplementary feeding of ewe in late pregnancy, the nutritional requirements of a fetus for rapid growth are met, and thus the survival rate of lambs is effectively increased. Meanwhile, an important local agricultural and sideline product of a rape cake is made full use of to reduce production cost, and particles are prepared which can overcome practical difficulties of far transportation distances and dispersed feeding sites, and are suitable for popularization and application in alpine pastoral areas of tibetan plateau.

An agricultural machine comprising a seed metering device to meter seeds for the distribution to the ground across which the agricultural machine moves. The seed metering device embraces a wall that is arranged to rotate. The seed metering device is furthermore arranged to communicate with a pressure actuating appliance for providing a wall pressure difference between a seed reception side, high-pressure side, of the wall and a side, low-pressure side, of the wall that is opposite the seed reception side. The wall is provided with a plurality of through retention openings for the reception on the seed reception side of the wall, by means of the wall pressure difference, of seeds at the retention openings. Then, the seeds are transported, by means of the rotation of the wall, through a wall transportation distance whereupon they are released from the wall. The pressure actuating appliance comprises a pneumatic device connected to an air line, which device provides a main air current through the air line toward the seed reception side of the wall. A return line is connected between the side of the wall that is opposite the seed reception side and the pneumatic device, in which return line a part of the main air current is arranged to be brought back to the air line and / or to an inlet side of the pneumatic device, while a part of the main air current is arranged to be directed down into the ground through a dump line.

The invention relates to a motorcycle water-cooling heat dissipating device, comprising a water tank, a water filter, an engine, a tee joint thermostat, a rubber hose and a radiator; the technical proposal is detailed as follows: the water tank, the water filter, the engine, the tee joint thermostat and the radiator are connected with each other by the rubber hose to form a circulation loop, that is, the heat dissipating device of the invention; the motorcycle water-cooling heat dissipating device can be applied to a motorcycle, has compact structure and convenient maintenance and can meet the heat dissipating requirements of a motor tricycle when the load is comparatively large, road condition is complex and transportation distance is long in virtue of the radiator with large area and timely water supply of the water tank; due to low cost and good heat dissipating effect, the motorcycle water-cooling heat dissipating device can lead to more convenient maintenance of the motorcycle, greatly lower fault rate, reduce the use of electrical energy and better maintain a battery.

The present invention provides a storage position distribution method and device. The method comprises the steps of obtaining the historical transaction information of a target user; according to thehistorical transaction information of the target user, assessing the transaction volume rank of the target user in the same day; according to the transaction volume rank of the target user in the sameday, distributing a storage position for the target user. According to the method of the present invention, the transaction volume rank of the target user in the same day is assessed according to theobtained historical transaction information of the target user, and the storage position is distributed to the target user according to the transaction volume rank of the target user in the same day,so that the storage positions having the shorter transportation distances can be distributed to the users having the top transaction volume ranks in the same day during the cargo sorting and selection processes and when the cargos are delivered from storage, the transportation distances during the cargo sorting and selection processes and when the cargos are delivered from storage can be shortened substantially, the delivery time of the cargos from storage is shortened, and the delivery efficiency of the cargos from storage is improved.

The invention discloses a sample scheduling method and device, terminal equipment and a medium, and belongs to the technical field of detection. The method comprises the steps of identifying an item to be detected of a sample in a sample frame; determining at least one piece of matched analysis equipment of the item to be detected according to the acquired detection items supported by each analysis equipment; determining target analysis equipment according to a preset matching rule, wherein the matching rule is set according to any one or any combination of the quantity of cache area sample frames, waiting time and transportation distance of the matched analysis equipment, and the waiting time is the time difference between current time and the receiving time when the matched analysis equipment receives the latest sample frame; and controlling the sample frame to be transmitted to the target analysis equipment. Therefore, the scheduling strategy of the sample frame is optimized, the largest work efficiency can be achieved by using the limited system resources, and the utilization rate of the system resources is improved.

The invention belongs to the technical field of building materials, and specifically relates to an underwater concrete. The underwater concrete is prepared from cement, sulphate aluminium cement, a concrete modifier, slag, silica fume, fly ash, aggregate and mixing water according to a certain ratio. The underwater concrete, which is prepared from a modified cement-based gelling composite material, is not easily dispersed under water; moreover, the fluidity of the underwater concrete is good, the coagulation is quick, the structure of the concrete is compact, the one-day compressive strength is 5 to 40 MPa, and the 28-day compressive strength is 20 to 90 MPa. The high performance underwater concrete is suitable for the mechanical operation mode comprising steps of strong stirring and large-powder pumping, the work efficiency can be improved, a novel building material is provided for the building of large area underwater concrete in a short time, the underwater concrete is especially suitable for the construction and repairing of underwater projects, and at the same time the provided underwater concrete is also suitable for the engineering projects in islands, which are lack of construction sands and fresh water, have a long transportation distance, and are far from the mainland coastline. The preparation method is simple, and can be widely used.

The invention discloses a system for fast mounting a steel pull rod in ultra-long and large-dip-angle tunnel anchorage by means of a transverse gallery of a tunnel and an operation method. The operation method is characterized by comprising the following steps: (1) building of a platform; (2) arrangement of a traction system; (3) hoisting and transportation of the steel pull rod; (4) mounting of the steel pull rod. Due to large length, narrow space and a large dip angle in ultra-long and large-dip-angle tunnel anchorage, the steel pull rod is difficult to mount. With the adoption of the system and the operation method, the steel pull rod can be mounted in site smoothly and fast in the ultra-long and large-dip-angle tunnel anchorage by means of the transverse gallery of the tunnel; fewer materials are required, the structure is not complicated, the transportation distance is shortened, and the mounting efficiency is improved; the system is stable on the whole, and safety accidents are not prone to occur.

The invention discloses a belt conveyor with a large inclined angle for upward transporting of a regular belt, comprising a belt conveyor consisting of a driving roller of the conveyor (10), a direction changing roller (11), a flute profile roller of the conveyor (8), a flat profile roller of the conveyor (9) and a material loading belt of inclined angle arrangement of upward transporting on the conveyor (6); a pressure belt mechanism which is parallel with the material loading belt of inclined angle arrangement of upward transporting on the conveyor (6) and of the same belt speed and the same running direction is arranged above the belt conveyor; the pressure belt mechanism comprises a driving roller (4) and a directional changing roller (5) of pressure belts, a roller (3) supporting the pressure belts, and pressure belts (1 and 2). The invention has the advantages of that the flute profile angle (generally 30 to 45 degrees) of the former belt conveyor is kept unchanged; retaining-side belts with clapboards are not required; the transportation capacity is not reduced; the belt speed is not decreased, and the upward transporting of large inclined angle is reached. In addition, the invention can greatly reduce the transportation distance, shorten the project construction period, reduce the area occupation, effectively decrease project and device cost, guarantee the transportation efficiency, and present significant effects of energy conservation and consumption reduction.

The invention discloses a transportation mode determination method based on triangulation location data of a mobile phone. A mobile phone user transportation chain is constructed based on mobile phonetriangulation location data; on the basis of a penalty factor, the obtained mobile phone user transportation chain data are cleaned to remove noise data, and an all-day mobile phone user transportation chain is reconstructed; according to the all-day mobile phone user transportation chain, time-dimension fine granularity division is carried out to form a plurality of sub transportation periods, total transportation distances and straight transportation distances of all sub transportation periods are calculated respectively, and non-linear coefficients of all sub transportation periods are obtained; multi-mode transportation modes of the sub transportation period of the mobile phone user are identified; and on the basis of the identified multi-mode transportation mode proportion of the subtransportation period of the mobile phone user, a main transportation mode of the all-day transportation period is identified. According to the invention, the transportation mode of the individual user can be obtained based on the on-aggregation level, so that the complexity of the model is reduced and the prediction accuracy is improved.

The present invention proposes an Internet of things technology-based container logistics tracking global network exchange service platform. The platform is established based on the Internet of things technology and the wireless network positioning technology, uses a distributed computing mode of a B / S three-layer system structure, and specifically comprises a layer of business process and application, a layer of technology implementation and support, and a layer of comprehensive processing and decision support. The layer of business process and application comprises a container logistics data automatic collection and application system, a container information exchange management system, and a customer account management application system. The layer of technology implementation and support comprises a data transmission management system, a GPS tracking system, and a CTS logistics monitoring system. The layer of comprehensive processing and decision support comprises an ECT logistics comprehensive processing and analyzing system. According to the platform provided by the present invention, transportation companies can take required containers from a nearest place according to requirements, so that a quantity of returned empty containers and a transportation distance are minimized, and strong support is offered to the companies for reducing costs, saving energy, and reducing emission to the utmost extent.

The invention discloses an automatic large-scale vegetable planting enterprise planting plan generation method. The method includes the steps that data are input and data initialization is conducted; preprocessing and validity verification are conducted on the input data; according to customer order requirements, planting places and planting time are arranged for all orders through an intelligent heuristic algorithm, and an enterprise planting plan scheduling result is generated; the enterprise planting plan scheduling result is visually displayed. According to the method, satisfaction of the customer order requirements of a vegetable planting enterprise serves as a purpose, factors such as expected prices, production periods, labor and material cost, land crop rotation and transportation distance of various vegetable varieties are fully considered, it is guaranteed that the customer order requirements are satisfied, and meanwhile, a worked-out planting plan can make enterprise economic benefits maximum. By the adoption of the method, large-scale vegetable planting enterprise vegetable planting plan arrangement efficiency can be effectively improved, and the automation level and the intelligence level of arrangement work are improved.

A gas injection type of slurry pipeline transportation method relates to a novel method which injects the gas into the sediment fluid to reduce the transportation resistance of the slurry and the sedimentation of the sediment and improve the transportation efficiency of the slurry. The transportation method comprises that the transportation pipelines which contain the gas injection channels are prepared; the gas injection type of transportation pipelines are connected according to the traditional pipeline connection method; a gas supply device is connected with the gas injection channels; during the transportation process of the slurry, the gas is injected into the sediment fluid continuously; the gas supply pressure is adjusted until the best sediment transportation efficiency is attained; after the transportation of the sediment, the gas continues to be injected into the transportation pipeline until the cleaning of the pipeline is completed. The invention has simple implementation technology and low sediment transportation cost. The invention can not only reduce the sedimentation of coarse sediment in the transportation pipeline, improve the transportation efficiency of the sediment and produce great transportation effect under the working conditions of wide sediment gradation and coarse grain size, but also improve the transportation distance and slurry concentration, reduce the post-processing dehydration working load of the dredging and reclamation and decrease the environmental pollution.

The invention discloses a vehicle GPS data processing method used for the index statistics of highway passenger and freight transportation. The method includes the following steps: 1) collecting coach-van GPS trajectory data by a set statistics period, and building a historical database used for the index statistics of highway passenger and freight transportation; 2) performing pre-processing on the collected coach-van GPS trajectory data; 3) performing relational matching on the pre-processed coach-van GPS trajectory data and electronic map road network information of a highway network so that the accurate position of driving vehicles can be determined; 4) determining the starting point and ending point of each travel section of coaches and vans so that the dividing of the coach-van GPS trajectory data can be achieved; and 5) performing transport distance calculating on the coach-van GPS trajectory division data so that three key indexes, which is the ratio of taking expressways, theratio of taking ordinary highways and average transport distances, of the coaches and vans can be obtained. The method has important meanings for building complete automatic statistics of highway network passenger and freight transportation in the case of fully utilizing existing data resources and without increasing software and hardware input.

The invention discloses a method for anhydrously surviving freshwater fish through repeated dormancy, at least comprising two times of dormancy. The times of the repeated dormancy are selected according to the practical needs of transportation distance and time. The method comprises the following steps of: temporary culture, first dormancy, recovery convalesce, second dormancy and convalesce. During the transportation of marine products, repeated dormancy survival is carried out on the same batch of live fishes to prolong the anhydrous survival time and be beneficial to the living body transportation of the live fishes.