131results about How to "Give full play to efficiency" patented technology

The invention relates to multilayer honey-net data transmission method and system, and the gateway of honey-net receives the data flow of external network; the gateway of honey-net detects the network intrusion for the received data flow; the normal data flow can pass, which is sent to the target host computer; and the informal data flow is divide into high, middle and low according to dangerous level; and the data flow with high level is sent to physical honey-tank system, the data flow with middle level is sent to virtual machine honey-tank system, and the data floe with low level is sent to virtual honey-tank system. The invention can utilize the advantages of low interactive honey-tank system and high interactive honey-tank system, save system source, and improve the covering area of honey-tank system and the ability of obtaining the movable information of network attack and capturing the malice code; it can defeat the anti-honey tank technique. And it can be used in security field of computer network.

The invention discloses a dual heat-source heat-pump hot water device with an extremely simple refrigerating loop. The device is characterized by mainly comprising a compressor, a hot water condenser, a wind heat exchanger, a water heat exchanger, a four-way valve, a bidirectional throttle and the like, wherein a high pressure inlet of the four-way valve is connected with the outlet of the hot water condenser, and the other three ports thereof are connected with air inlets of the wind heat exchanger, the water heat exchanger and the compressor respectively; other ports of the wind heat exchanger and the water heat exchanger are connected with the bidirectional throttle; the exhaust port of the compressor is connected with the inlet of the hot water condenser, and is connected with high pressure air inlet of an electromagnetic pilot valve of the four-way valve; four functions of manufacturing hot water by utilizing water source or air energy and providing air-conditioning cool water by utilizing air-cooling or heating water can be realized by only switching the four-way valve, defrosting can be performed completely and quickly; and a water pre-heater is added to the device to reclaim the heat of waste hot water. The heat pump has the advantages of dual heat sources compensation and wide application range, has multiple functions, extremely simple structure, extremely convenient switching and over 5 of annual comprehensive energy efficiency ratio, and has great popularization value.

The invention relates to a high-security desensitization method based on a big data information system. The method is characterized by comprising the first step of conducting preprocessing before conducting desensitization use on sensitive data; the second steps of using a compound layering type desensitization algorithm model to conduct encryption on the sensitive data; the third step of conducting source tracing and auditing after conducting desensitization use on the sensitive data. According to the high-security desensitization method based on the big data information system, the compound layering type desensitization algorithm is adopted as a core, and the method is used for realizing protection of the visited sensitive information under the situation that an information system is invaded illegally and authority is utilized to break loopholes of a traditional desensitization algorithm. The high-security desensitization method based on the big data information system has the advantages that on the one hand, the danger coefficient of the sensitive data is effectively reduced, the security of the sensitive data is sharply improved, the breaking difficulty coefficient is sharply increased, and desensitization protection of the sensitive data is realized; on the other hand, efficiency characteristics of each arithmetic unit in the desensitization model can be given full play through the model algorithm.

The invention relates to the field of household appliances, in particular to a washing machine provided with an ultra-fine bubble generating device. The washing machine comprises a case body and an outer tub installed in the case body, wherein an inner tub is rotatably arranged in the outer tub, at least one ultra-fine bubble generating device is arranged between the case body and the outer tub, a gas-liquid mixing outlet of each ultra-fine bubble generating device is communicated with the outer tub, ultra-fine bubbles produced by the ultra-fine bubble generating device enter washing body through the gas-liquid mixing outlet to make a washing agent fully dissolved. The washing ratio of clothes is improved, meanwhile pollutant discharge is reduced, and environmental pollution is reduced.

The invention relates to a bus signal priority control method based on an RFID vehicle-mounted electronic label. The RFID electronic label is a taken as an information intermediary, and a bidirectional communication between public transport vehicles and a crossing control layer can be established; through guiding the public transport vehicles to reach and pass across a crossing appropriately, the road section travel speed of the bus is changed from priority model input to model output, and a signal control system is converted from adapting to the arrival of a traffic flow passively to guiding the traffic flow to arrive at and pass across the crossing, thereby giving full play to the efficiency of a control model and realizing maximization of system benefit; considering from the aspect of controlling the crossing control layer of the system, signal timing plan, suggested speed, station lingering time and other control parameters and the like core jobs are calculated, and a priority control scheme can be carried out through the communication with the RFID electronic labels, so that efficiency of processing priority algorithm of the crossing control layer can be improved, average vehicle delay and average parking frequency of the public transport vehicles are reduced to the maximum degree, and green time utilization rate is improved.

The invention provides a shift controlling method for a purely electric vehicle, and the method includes: a. the position of an accelerator pedal and the speed are detected; b. when the position of the accelerator pedal and the speed arrive at a shifting point, the rotate speed of a drive motor is regulated to an expected rotate speed and the position is selected while regulating the speed; c. after reaching the expected rotate speed, shift is carried out. The invention also provides a shift controlling system for a purely electric vehicle, and the system comprises: a pedal position detecting unit, a central controlling unit, a motor speed regulating unit, a position selecting device and a shifting device. The shift controlling method and system for purely electric vehicles can shift under the condition that the speed is not reduced, thus greatly improving the maneuverability of the vehicles and fully playing the efficiency of the electric motor.

The invention discloses an efficient space-use type damper of an end portion straight brace secondary displacement amplification device. The efficient space-use type damper of the end portion straightbrace secondary displacement amplification device comprises a vertical type moving displacement support, a T-shaped overhanging positioning bracket, a T-shaped connecting plate, a displacement amplification rod, an input rod with a rack, a duplicate gear, an output rod with a rack, a damper connecting piece, an input end guide gear, a damper device, a damper fixing support and the like. The efficient space-use type damper of the end portion straight brace secondary displacement amplification device performs first amplification on the relative displacement between layers of a building throughthe displacement amplification rod when the deformation of the building structure is small or slow, then the displacement of the first amplification is subjected to second amplification through the duplicate gear, two-time amplification is performed, so that the damper generates greater relative displacement, the damper generates greater damping force, and the better shock absorption effect is achieved. At the same time, the efficient space-use type damper has the characteristics of simple structure, considerable cost, convenient installation, convenient operation, flexible layout, firm and durable and the like, and has broad prospects of development and application.

A self-soldering solder for soldering PTC ceramics with Al alloy is proportionally prepared from Zn, Al, Ag, Ti, Sn, Bi, Ga and RE.

The invention relates to a lever-type gain device for a damper, which comprises an upright post, a cord clip, a lever mechanism and the damper, wherein the lever mechanism mainly comprises a main connecting rod and a cord clip connecting rod, the supporting point of the lever mechanism is fixed at top end of the upright post, and one end of each of two force arm points is connected with the cord clip, while the other end is connected with the damper. Compared with the prior art, the lever-type gain device amplifies the damper deflection caused by the deformation of guy cable vibration to give full play to the deformation efficiency of the damper so that the usage of the damper is greatly reduced, the mounting position of the damper is lowered, and the overall aesthetic degree of a bridge is improved.

The invention discloses a method for displaying a fuel economy state of a car engine, comprising the steps of calibrating a fuel economy state MAP by an engine universal characteristic test, putting the map to an ECU (electronic control unit) in advance; obtaining present rotation speed and torque of an engine by the ECU, and finding the fuel economy state obtained by the MAP in a present state; generating a fuel economy state message and transmitting the message through a CAN (controller area network) bus; capturing the fuel economy state message from the CAN bus by a motormeter; analyzing and displaying the fuel economy state in the present state. The method can output the fuel economy state of the car engine in the present state in real time, enable a driver to know the state immediately to do purposeful operation, enable the car engine to work in an economical fuel consumption area, fully play the engine efficiency, reduce oil consumption and reduce environment pollution. On the basis, the invention also provides a device for displaying a fuel economy state of a car engine.

The invention discloses an air and water two-source waste heat recovery type heat pump multi-function machine. The two-source heat pump multi-function machine mainly comprises a compressor, a four-way valve, an air heat exchanger, a water heat exchanger, a liquid storage device, a restrictor and a gas-liquid separator. The two-source heat pump multi-function machine is characterized by further comprising a three-way valve, a hot water heat exchanger and a rectifying mechanism comprising first, second, third and fourth check valves or a second four-way valve, wherein the gas inlet, the first and second gas outlets of the three-way valve are respectively connected with the gas outlet of the compressor, the gas inlet of the hot water heat exchanger and the gas inlet of the four-way valve; the second, third and fourth interfaces of the four-way valve are respectively connected with gas inlets of the water heat exchanger, the air heat exchanger and the gas-liquid separator; the refrigerant outlet of the hot water exchanger is connected with the inlet of the liquid storage device; the first, second, third and fourth interfaces of the rectifying mechanism or the second four-way valve are respectively connected with the outlet of the restrictor, the lower port of the air heat exchanger, the lower port of the water heat exchanger and the inlet of the liquid storage device; and the outlet of the liquid storage device is connected with the inlet of the restrictor to form a refrigerant loop. According to the invention, four functions of refrigerating and water heating, water heating, refrigerating, and warming are achieved by four separate circulations, and are automatically shifted; and water inlet amount is controlled by a variable frequency pump, so as to discharge water at a constant temperature of 55 DEG C in a directly-heated manner.

The invention discloses a higher order variation testing method based on a statement dominance relation and a two-stage genetic algorithm, and aims to improve effectiveness and quality of higher order variation tests. The method includes firstly, on the basis of a dominance relation tree of a program, determining the statement selecting problem of higher order variation, and accordingly guaranteeing all mutated statements in a same higher order variant being executed; secondly, establishing required target function, and measuring merits and demerits of the higher order variants; finally, designing the genetic algorithm including two alternating evolution processes to generate high-quality higher order variants, and accordingly disclosing complex defects contained by the program. The method has the advantages that the number of the higher order variants can be decreased, good performances of the higher order variants can be guaranteed, and significances is provided for improving effectiveness and feasibility of the higher order variation tests.

The invention discloses a domain self-adaptive deep learning method, which comprises the following steps of: carrying out rotation transformation on a target domain image to obtain a self-supervised learning training sample set; And carrying out joint training on the converted self-supervised learning training sample set and the source domain training sample set to obtain a domain adaptive deep learning model used for a visual task on a target domain. According to the method, a target domain sample does not need to be labeled, the feature representation of the target domain can be effectivelylearned, and the performance of a computer vision task on the target domain is improved. The invention further discloses a domain self-adaptive deep learning readable storage medium which also has theabove beneficial effects.

The invention provides a double heating, refrigerating, water heating and dehumidifying system. The system is characterized by comprising a multifunctional air conditioning unit and a hot-water heat exchange system with a hot-water radiator, wherein the multifunctional air conditioning unit with a five-cycle hot-water air conditioner has the functions of hot wind making, water heating, air cooling and dehumidifying; the multifunctional air conditioning unit consists of a compressor, two four-way valves, three heat exchangers and a rectification three-way throttle; and a refrigerating agent loop connection is formed in a way that first, second, third and fourth ports of the first four-way valve are connected with the compressor, the first port of the second four-way valve, an indoor air heat exchanger and a gas-liquid separator respectively; second, third and fourth ports of the second four-way valve are connected with an outdoor air heat exchanger, a hot water heat exchanger and the gas-liquid separator; the gas-liquid separator is connected with the compressor; the outlet of the hot water heat exchanger is connected with the inlet of a third one-way valve and the outlet of a third solenoid valve; the two ends of a first capillary tube are connected with the parallel connected end of outlets of three one-way valves and the inlet of the third solenoid valve and the parallel connected end of the inlets of the first and second solenoid valves; the two ends of a second capillary tube are connected with the outlet of the first solenoid valve, and the parallel port of the inlet of the first one-way valve and the outdoor air heat exchanger; and the outlet of the second solenoid valve is connected in parallel with the inlet of the second one-way valve and the indoor air heat exchanger.

A method and system for parallel optimal configuration of distributed photovoltaic power supply of a distribution network are disclosed. The method comprise that following steps: acquiring real-time operation state parameter of distributed photovoltaic power source; Substituting the operating state parameters into a pre-established distributed photovoltaic power source optimal configuration model;Multi-scene analysis and multi-objective molecular differential evolution algorithm based on parallel computing are used to solve the optimal placement model. According to the solution results, the optimal configuration of distributed photovoltaic power is carried out. The system includes background server, photovoltaic grid-connected inverter, interruptible load controller, on-load tap changer regulator, data acquisition and monitoring device. The invention takes the active management measures as the decision variables, and introduces the active management measures into the optimal configuration of the distributed power generation to obtain the optimal installation position and capacity of the distributed power generation and the optimal implementation scheme of the active management measures, which can effectively increase the consumption of the distributed power generation and improve the voltage quality.

The invention relates to a double-source heat pump water heater, which is provided with different refrigerant circuit systems with three four-way valves and one four-way valve; the refrigerant circuit system with three four-way valves is characterized in that a first interface, a second interface, a third interface and a fourth interface of a first four-way valve are respectively connected with an exhaust port of a compressor, an inlet of a hot water heat exchanger, a third interface of a third four-way valve and an inlet of an air-liquid separator; an outlet of the hot water heat exchanger is connected with an inlet of a throttling device; a first interface, a second interface, a third interface and a fourth interface of a second four-way valve are respectively connected with an outlet of the throttling device, a lower end port of an air source heat exchanger, a lower end port of a water source heat exchanger and a first interface of the third four-way valve; a second interface and a fourth interface of the third four-way valve are respectively connected with an upper end port of the water source heat exchanger and an inlet of the air-liquid separator; an outlet of the air-liquid separator is connected with an air inlet of the compressor; a unit is provided with an air source, a water source, an air source and water source serial-connection circulation and defrosting plus antifreezing mode; and the heat cascade application double-source heat pump water heater is additionally provided with a heat recovery-clean water preheater, the coefficient of performance (COP) of the unit is higher than 6, and the double-source heat pump water heater is a high-efficient energy-saving product.

The invention discloses a voltage sag comprehensive treatment method based on supply and demand coordination. Considering the investment cost of both supplier and demander and the loss of user, the net present value method is used to establish the objective function of transformation benefit and the optimal allocation model of comprehensive transformation, and the chain agent genetic algorithm isused to solve the problem. The simulation analysis in IEEE30 system shows that the proposed comprehensive control strategy is effective and superior through the comparison of user loss before and after renovation. It not only improves the power quality of consumers, but also improves the reliability and security of power system, which makes up for the simplicity of resource allocation strategy inthe existing voltage sag control.

An apple tree exclusive compound fertilizer which can avoid the deficiency of the fertility or waste by applying the ordinary compound fertilizer and also improve the product and quality of the apple in a large area is provided. It proposes a reasonable proportion of the content of nitrogen, phosphor, kalium and adds the needed organic matter and microelement calcium, zinc and iron in the plant growth based on the need of the cucumber growth for the major element and geography condition.

The invention discloses a dual-heat source heat pump water heating all-in-one machine employing dual four-way valves for switching. Three technical schemes are provided. The all-in-one machine is characterized in that two four-way valves are used for a refrigerant loop according to each technical scheme; and a compressor, a hot water heat exchanger, a water source heat exchanger, a wind source heat exchanger, a throttler and the like are connected into the dual-heat source heat pump water heating all-in-one machine with a wind-source or water-source water heating sub-cycle, a dual-source water heating sub-cycle and a defrosting sub-cycle. Firstly, according to a loop with a wind-source and dual-source serial sub-cycle, first to fourth joints of a first four-way valve are connected with an outlet of the compressor, an inlet of the hot water heat exchanger, an upper opening of the wind source heat exchanger and an inlet of a gas-liquid separator respectively; an outlet of the hot water heat exchanger is connected in series with a liquid storage device and a filter, and then is connected with an inlet of the throttler; first to fourth joints of a second four-way valve are connected with an outlet of the throttler, a lower opening of the wind source heat exchanger, a lower opening of the water source heat exchanger and an upper opening of the water source heat exchanger respectively; and an outlet of the gas-liquid separator is connected with an inlet of the compressor. Secondly, a water-source and dual-source serial sub-cycle is provided. Thirdly, a wind-source and dual-source parallel sub-cycle is provided.

The invention discloses a method for modifying a collagen body of animal skin, which is characterized in that: 100 weight portions of collagen body material is taken and is added into 800 to 2,000 weight portions of 40 to 80v / v percent alcohol solution of 2-N-morpholino ethanesulfonic acid (MES) with a concentration between 20 and 70mmol / L and a pH value between 5.0 and 6.0 or a phosphate buffer solution (PBS) with the pH value between 5.0 and 6.0, the mixture is oscillated for 15 to 60min, then is respectively added with 2 to 30 weight portions of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS), is oscillated for 4 to 24h at room temperature to produce a collagen body modification material; or 100 weight portions of the collagen body material is taken, is added into 800 to 2,000 weight portions of the phosphate buffer solution (PBS) with the pH value between 6.0 and 8.0, is oscillated for 15 to 60min, then is added with 3 to 15 weight portions of genipin, and is oscillated for 10 to 24h at a temperature of between 20 and 40 DEG C to produce the collagen body modification material; then a monobasic sodium phosphate solution with the concentration of 0.1mol / L, the phosphate buffer solution with the pH value between 7.2 and 7.4 and double distilled water are orderly used to repeatedly clean the collagen body modification material, each cleaning time is not less than 60min, the cleaning time of each cleaning solution is not less than 3h, and the total cleaning time reaches more than 24h; and finally a modified collagen body material is produced by freeze drying.

The invention discloses a fertilizer for a grape vine. The fertilizer is prepared from the following raw materials in parts by weight: 45-55 parts of calcium magnesium phosphate, 30-40 parts of a biogas waste fertilizer, 50-60 parts of fermentative manioc waste, 15-20 parts of black soybean straw powder, 4-6 parts of soyabean extraction, 6-10 parts of a soil conditioner, 3-4 parts of monopotassium phosphate, 5-6 parts of ammonium molybdate, 2-4 parts of potassium stearate, 5-6 parts of propylene glycol, 6-8 parts of ascorbic acid, 10-15 parts of talcum powder, 4-6 parts of hawthorn fruit powder, 2-4 parts of tangerine powder, 1-3 parts of sodium borate, 1-2 parts of zinc acetate, 3-4 parts of radix sophorae flavescentis, 6-10 parts of potato powder and 1-2 parts of monoammonium phosphate. The organic fertilizer is comprehensive in nutrients, reasonable in raw material ratio, high in fertilizer utilization rate; nitrogen, phosphorus and potassium in the fertilizer are suitable for growth of the grape vine; the effectiveness of various elements can be fully developed; organic matters and microelements required for plant growth are also added; the yield and the quality of grapes can be improved on a large scale; the fertilizer is low in cost; and the grown grapes are large in size, fresh, sweet and delicious.

The invention discloses a reactive compensation controller which is provided with a plurality of compensation modules. The reactive compensation controller comprises a static reactive compensator and a static synchronous compensator. The reactive compensation controller is further provided with a digital signal processor (DSP) control module. The static reactive compensator and the static synchronous compensator are connected with the DSP control module through a process filed bus (ProfiBus) module. In addition, a control method of the reactive compensation controller is further disclosed. According to the technical scheme, working efficiency of a compensation system is improved, loss is lowered, strong capacity, of dealing with mutation, of the system is ensured, dynamic response speed is higher, reliability is higher, service life is longer, system structure and construction are simple, products are conveniently manufactured in a modularized and standardized mode, dynamic reactive compensation technical level is favorable for being promoted, and construction of an intelligent power grid is promoted.

The invention relates to a snowflake grid type grid construction method suitable for urban medium voltage distribution networks. The method comprises the following steps: selecting equipment of a snowflake grid type grid for constructing the 10kV medium voltage distribution networks; constructing a main gird of the snowflake grid type grid consisting of a feeder line cluster; connecting the equipment on the main grid; and constructing a load transfer passage to form the snowflake grid type grid. The method has the effects that each feeder line in the target grid structure formed by adopting the method is reasonably segmented and contacted, has automatic detection, isolation and network reconstruction for failures and self-healing capacity of power restoration, and can meet the power supply requirement of various types of users, so that the utilization efficiency of power distribution equipment is improved, optimal allocation of resources and optimal capital efficiency are realized, the benefit efficiency of the grid is fully developed, and thus the target grid structure is more scientific and complete. The method is easy to master and operate, simple and clear, and is convenient for actual operators to master skillfully.

The invention discloses polygonatum kingianum paste and a preparation method thereof. The polygonatum kingianum paste contains 100-400g of Jiuhua polygonatum kingianum, 180-300g of donkey-hide gelatin, 600-1000g of black sesame, 100-250g of wolfberry, 400-600g of honey, 180-280g of red dates, 180-300g of walnuts, 600-1200g of yellow rice wine and 160-280g of rock candy. The polygonatum kingianum paste is obtained by eight processing steps in total, namely soaking, alternately steaming and drying in the sun for nine times, frying, smashing, stirring, steaming, cooling and packaging. All the warm food materials and medicinal materials are 'dissolved' into a whole to prepare paste, so that the polygonatum kingianum paste not only has the advantages of being simple and convenient in preparation and medication and maximal in nutritive value but also has the advantages of being warm, appropriate to absorb, safe and effective; and by virtue of alcohol capacity of yellow rice wine, all the medicinal materials and food materials fully take effect, so that an eating curative effect is improved; meanwhile, by soaking in selenium-enriched water, the polygonatum kingianum paste is rich in selenium, and a health effect is improved.

The invention discloses organic fertilizer for agricultural production. The organic fertilizer is prepared from the following raw materials in parts by weight: 50 to 70 parts of soybean straw, 5 to 12 parts of sesame straw, 8 to 15 parts of broad bean shell, 4 to 8 parts of rape straw, 15 to 25 parts of folium mori, 5 to 10 parts of rhizoma dioscoreae, 1 to 5 parts of sodium carbonate, 4 to 10 parts of yellow mealworms, 20 to 35 parts of diatomite, 18 to 25 parts of kaolin, 3 to 10 parts of yellow mealworm dung, 10 to 25 parts of cattle dung, 6 to 12 parts of waste vegetable leaves, 10 to 20 parts of tea stem powder, 0.3 to 0.6 part of a microorganism fermentation agent and 10 to 20 parts of calcium hydrogen carbonate. According to the organic fertilizer disclosed by the invention, rural domestic wastes can be effectively utilized and the aim of effectively utilizing resources is realized; the organic fertilizer has enough fertility and effects of all elements can be sufficiently expressed; the production quality and yield of crops are effectively improved.

The invention discloses a plastic hollow board comprising an upper plastic surface layer and a lower plastic surface layer. The plastic hollow board is characterized in that an intermediate layer is arranged between the upper plastic surface layer and the lower plastic surface layer, and the intermediate layer is a plastic board; forward direction projections are uniformly distributed on the plastic board, and the positive projections are hexagonal prism bodies with regular hexagonal cross sections and formed in a way that the surface of the plastic board downwards deforms and arches; backward direction projections are embedded between the adjacent positive projections on the plastic board, and the negative projections are arranged around the positive projections and are correspondingly arranged on the six regular hexagonal corners of the positive projections; the negative projections are columnar bodies formed in a way that the surface of the plastic board upwards deforms and arches; and the bottom surfaces of the positive projections are fixedly connected with the lower plastic surface layer, and the top surfaces of the negative projections are fixedly connected with the upper plastic surface layer. According to the plastic hollow board, the upward stresses on the sides are uniform, so that the bearing capacity of the periphery of the hollow board in the case of lateral stress achieves a high level.

The invention relates to a special fertilizer for apple trees. The special fertilizer is prepared from the following components in parts by weight: 35-45 parts of dry sheep manure, 25-30 parts of bean cakes, 15-20 parts of rapeseed cakes, 3.7-6.7 parts of ammonium bicarbonate, 3.6-4 parts of urea, 1.2-1.8 parts of potassium dihydrogen phosphate fertilizer, 1.6-2 parts of distiller grain powder, 1.5-2 parts of carbendazim, 0.7-1 part of paclobutrazol, 0.6-1 part of fruit tree spotting agent, 1-2 parts of calcium carbonate, 0.7-1.5 parts of liquid fruit setting agent, 0.5-2.5 parts of calcium sulfate, 0.5-2.0 parts of ferrous sulfate and 0.5-2.4 parts of zinc sulfate. The contents of nitrogen, phosphorus and potassium in the special fertilizer provided by the invention are suitable for the growth of apple trees and apples, and the efficacies of all the elements can be sufficiently exerted; meanwhile, the organic matters and trace elements which are required by the growth of plants are also added into the fertilizer, so that the yield of the apples can be increased on a large area, and the quality of the apples can be improved on a large area; in addition, the raw materials are easily obtained, the preparation method is simple, the cost is low, not only is the yield of the apple trees increased, but also the problem that the applies are small in size, light in weight, slow in growth and easy to induce diseases is solved, and a new though is brought for cultivating the apple trees.

The invention relates to a small-size cutter-suction boat and pump boat two-parallel and one-series blow filing system and a construction method of the small-size cutter-suction boat and pump boat two-parallel and one-series blow filing system, and belongs to the technical field of dredge engineering. The small-size cutter-suction boat and pump boat two-parallel and one-series blow filing system is formed in a way that a main cutter-suction boat is connected in parallel with a sub cutter-suction boat and is connected in series with a relay pump boat, a pump boat mud discharge pipeline is connected to a mud discharge push field, and the mud discharge pipeline is provided with an exhaust valve. According to the construction method of the small-size cutter-suction boat and pump boat two-parallel and one-series blow filing system, the main cutter-suction boat and the sub cutter-suction boat are used for building relationship with the pump boat. The method comprises the following construction steps including (1) engine standby: when the main cutter-suction boat requires engine standby, the sub cutter-suction boat and the relay pump boat carry out engine standby; (2) pump merging: the main cutter-suction boat and the sub cutter-suction boat carry out pump merging, the pump boat carries out pump merging after the mud discharge pipeline discharges out clear water, and the normal blow filling construction is carried out; (3) off-pump: the slurry concentration is reduced through the main cutter-suction boat and the sub cutter-suction boat until the clean water is pumped out, the relay pump boat realizes the pump-off, and the main cutter-suction boat and the sub cutter-suction boat realize the pump-off. The system and the method provided by the invention have the advantages that the boat engine arrangement is reasonable, the operation is convenient, the construction is safe, the integral efficiency is high, and the like.

The invention relates to organic ecological fertilizer for vegetable cultivation and a preparation method of the organic ecological fertilizer. The organic ecological fertilizer is prepared from, by weight, 40-50 parts of vegetable wastes, 35-45 parts of livestock excrement, 25-35 parts of fungi residue powder, 15-25 parts of plant ash, 10-15 parts of tobacco wastes, 8-13 parts of tea tree leaves,6-10 parts of wormcast, 5-8 parts of urea, 3-6 parts of coal ash, 2-5 parts of potassium molybdate, 2-5 parts of sodium selenate and 0.3-0.5 part of a microbial agent. The organic ecological fertilizer prepared can effectively improve the structure of soil, air permeability of the soil is increased, and pests in the soil can be effectively killed; meanwhile, the organic ecological fertilizer is rich in nutrition, easy to absorb, durable in fertilizer efficiency, low in cost, wide in application and capable of meeting vegetable nutrient demands completely, improving quality of vegetables and enhancing stress resistance of the vegetables, and good ecological and economic benefits are achieved.