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82results about How to "Improve aggregation efficiency" patented technology

Information recommendation method, information recommendation system and server

The invention discloses an information recommendation system which comprises a business processing unit, a relation database and a KV database, wherein the business processing unit is used for sending history operation data of ht information to the relation database and the KV database in real time, reading the state data of the information from the relation database and the history operation data of the information from the KV database while receiving an information recommendation request, calculating a recommendation list of the information according to the history operation data of the information, the state data of the information and the user information, and returning the recommendation list; the relation database is used for calculating the state data according to the history operation data of the information; and the KV database is used for storing the history operation data of the information. The invention also discloses an information recommendation method. According to the scheme adopted by the invention, the information recommendation sensitivity is greatly improved, and the experience of the user is improved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Apparatus for two-way tracing and concentrating sunlight of roof installation type

The invention discloses an apparatus for two-way tracking and condensing sunlight of roof installation type, including a horizontal truss, a roof truss forming a triangular structure inclined to both sides of the horizontal truss, and a hinge formed on a top of the roof truss. Solar module plates are formed on both inclined surfaces of the roof truss to condense sunlight and interoperate with each other in a lateral direction. A driving means supports lower portions of the solar module plates, and moves the lower portions thereof so the solar module plates can pivot in both left and right directions around the hinge. The apparatus tracks sunlight and pivots the solar module plates to maximize condensing efficiency, improves energy production efficiency by using a roof area, and firmly fixes the solar module plate to the roof.
Owner:GREEN PLUS CO LTD +1

Induced charge electrosmosis and dielectrophoresis based microscale particle separation chip as well as preparation method and application thereof

The invention discloses an induced charge electrosmosis and dielectrophoresis based microscale particle separation chip as well as a preparation method and application thereof and aims at solving the problem that the particle aggregation process needs complex fluid control and incompact external equipment, and particles cannot be directly integrated with other micro-fluidic chips in the traditional dielectrophoresis-based continuous particle separation method. As for the chip, the induced charge electrosmosis and dielectrophoresis based microscale particle separation chip is formed by a PDMS cover plate and an ITO glass substrate; the PDMS cover plate is bonded onto the ITO glass substrate; and a passage is printed on the PDMS cover plate. The preparation method comprises the following steps: I, processing an electrode; II, processing a passage model; III processing the PDMS cover plate; and IV, preparing the chip. The induced charge electrosmosis and dielectrophoresis based microscale particle separation chip is used for microscale particle separation.
Owner:HARBIN INST OF TECH

Data collection summary method for customized table

The invention relates to a data collection summary method for a customized table. The method comprises the following steps of obtaining attribution data of a customized table and storing into a data table I of a database by the database; receiving the data filled in a corresponding data filling cell of the customized table by a filling end; recording the filling record of the filling end into a data table II of the database and storing the filling data into a server in mode of text; extracting the related filling record in the data table II of the database; outputting document names of all filling data according to the filling record, extracting the content of the filling data and processing to form a table. The data collection summary method for the customized table can provide the data collection summary service of the customized table for a user, the user only needs to set the table format according to self needs, a filling person fills according to the table set by an initiator, a system can automatically generate a table formed by the data filled by the filling person according to a request, the format of the data filled by the filling person is not limited and the flexibility is high.
Owner:CHANGZHOU EVERESTEC

Nucleic acid extraction kit and nucleic acid extraction method

ActiveCN109055359ARemain superparamagneticLimited adsorption and extraction capacityDNA preparationAgainst vector-borne diseasesPolyethylene glycolClinical disease
The invention discloses a nucleic acid extraction kit comprising a nucleic acid binding solution and a magnetic adsorbent. The nucleic acid binding solution comprises polyethylene glycol and sodium chloride, and the magnetic adsorbent is magnetic Fe3O4 nano particles with the surfaces covered with polydopamine coatings. The magnetic adsorbent provided by the invention has the superparamagetic nanoparticles, the polydopamine coatings on the surfaces of the nano particles are rich in amino groups and hydroxyl groups, under the salt solution environment provided by the nucleic acid binding solution, nucleic acids can be efficiently adsorbed, the nucleic acid adsorbing efficiency and quality of the existing magnetic nano particles are improved, and the nucleic acids can be extracted efficiently and rapidly; and when the nucleic acid extraction kit is applied to extraction of human whole blood, blood treatment is not needed, and the nucleic acid extraction kit is suitable for gene diagnosis and treatment of clinical diseases. The nucleic acid extraction method provided by the invention uses the nucleic acid extraction kit, the quality and efficiency of extracting of the nucleic acids are improved, and the nucleic acid extraction method is suitable for application and promotion of clinical diagnosis and basic scientific research.
Owner:SUZHOU BAIYUAN GENT CO LTD

Auxiliary method and device for service data summarization and electronic equipment

The embodiment of the invention relates to an auxiliary method and device for service data summarization and electronic equipment. The auxiliary method comprises the following steps: determining at least one configuration dimension corresponding to a target service scene, wherein the at least one configuration dimension is used as a summary dimension of the target service scene; Obtaining a fieldof the at least one configuration dimension in a service data table corresponding to a target service scene; And configuring a summary field in the service data table based on the field of at least one configuration dimension in the service data table corresponding to the target service scene. Wherein the summary field value is determined based on the field value corresponding to the at least oneconfiguration dimension in the service data table, and different field values of the at least one configuration dimension in the service data table correspond to different summary field values.
Owner:ADVANCED NEW TECH CO LTD

Composite biological filter material for biological aeration filter tanks

The invention relates to a composite biological filter material for biological aeration filter tanks. The composite biological filter material has the advantages that the nitrifying bacterium aggregation efficiency can be improved, ammonia nitrogen and nitrite in wastewater in the biological aeration filter tanks can be efficiently treated, and other residues in the biological aeration filter tanks can be effectively adsorbed and filtered; contact between filter materials can be improved while the high porosity can be kept in a long-acting manner, fibers can be prevented from being compacted by one another, and accordingly filter effects and the service life of the composite biological filter material with the structure further can be guaranteed; contact between microorganisms in the composite biological filter material can be improved, and accordingly the ammonia hydrogen decomposition efficiency further can be optimized; the composite biological filter material with the structure is favorable for film culturing, and biological films are difficult to fall off during back flushing; the composite biological filter material is low in water flow resistance, difficult to block and uniform in water distribution and gas distribution; the composite biological filter material has rough surfaces and is high in film culturing speed, and microbial films are difficult to fall off during back flushing; as proved by practice, the composite biological filter material can resist shear actions of hydraulic power with different intensities, and the service life of the composite biological filter material is far longer than the service lives of other filter materials; the composite biological filter material has moderate density and is easy to suspend during back flushing, energy can be saved, and consumption can be reduced.
Owner:FUJIAN MINDONG AQUATIC PROD RES INST

Centrifugal screen

The invention discloses a centrifugal screen, which is characterized by comprising a rack and a principal shaft, wherein a screening cabin is arranged on the rack; a scraping plate connected with the principal shaft is arranged in the screening cabin; the two end surfaces of the screening cabin are respectively provided with a material inlet and a material outlet; the material inlet of the screening cabin is connected with a material feeding pipe; the upper part of the material feeding pipe is connected with a material feeding hopper; the principal shaft passes through the material feeding pipe and the screening cabin; two screens are arranged on the lower part of the screening cabin; the screen close to the material inlet is thinner than the screen close to the material outlet; the two screens respectively correspond to material collecting mouths which are respectively connected with an exhaust fan; the shell of the screening cabin is provided with two air inlets; and the air inlet close to the material inlet is larger than the air inlet close to the material outlet. The centrifugal screen enhances the powder screening efficiency through the structure improvement.
Owner:江阴市鑫达药化机械制造有限公司

Multi-data-source structure analysis method and system, terminal equipment and storage medium

The invention provides a multi-data-source structure analysis method and system, terminal equipment and a storage medium, and relates to the technical field of data analysis. The method comprises thesteps of obtaining a target SQL statement, and analyzing the target SQL statement to construct an abstract syntax tree; traversing the abstract syntax tree to construct a first query plan, and replacing a corresponding original two-dimensional table in the first query plan with a preset configuration parameter table to obtain a second query plan; executing the second query plan to query the targetdata from each data source storing the target data, and converting the queried target data in a data warehouse to generate target data in a unified format; and summarizing and analyzing the target data in the unified format. Through the method, unified query analysis of the data source structure is realized, and the development speed of data analysis application is increased; in addition, according to the method, the process of constructing a data aggregation program is omitted, and system resources are saved.
Owner:安徽航天信息有限公司

Carrier system and method for inputting nanoparticles into cell

The invention relates to a carrier system for inputting nanoparticles into a cell. The carrier system is prepared through the following steps: preparing a lipid membrane from one or multiple phospholipids, performing ultrasonic cavitation on the hydrated lipid membrane to obtain a microbubble solution, and finally adding avidin and a cell specific antibody. The invention also relates to a method for inputting nanoparticles into a cell, which comprises the following specific steps: adsorbing nanoparticles on the surface of the microbubble of the carrier system, adding a cultured cell, and finally performing ultrasonic treatment on a microbubble-adsorbed cell solution in an ultrasonic field. According to the invention, nanoparticles are efficiently input into a cell without any loss through the cavitation effect of the microbubble, thus providing a carrier system and method for safely, conveniently, accurately and quantitatively inputting various nanoparticles into a cell for research of nano biomedicine.
Owner:SOUTHEAST UNIV

Reactor for realizing suspension of biofilm carriers under low aeration quantity

The invention relates to a reactor for realizing suspension of biofilm carriers under low aeration quantity. The reactor comprises a vertical cylindrical shell, wherein a vertical hollow cylinder is coaxially arranged in the shell, and a stirring paddle is mounted in the hollow cylinder; a plurality of through holes are formed on the wall of the hollow cylinder; the bottom end of the hollow cylinder is fixedly connected with the bottom end of the shell; and the biofilm carriers are filled in a circular space between the hollow cylinder and the shell. According to the unique structure design of the reactor and the control to the rotating speed of the stirring paddle, the biofilm carriers in the reactor can be ensured always in the suspension state under the low aeration quantity, and excellent fluidization character is maintained, so that the partial nitrification advantages are stably kept, the advantages are created for simultaneous nitrification and denitrification, and the aeration energy consumption and the carbon source material consumption in the denitrification phase are reduced.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

LCD glass cutting system

The invention discloses an LCD glass cutting system. The system comprises a rack, a feeding mechanism, a front-side cutting mechanism, a turnover mechanism, a reverse-side cutting mechanism and a material collection mechanism are arranged at the rack in sequence from the feeding end to the discharging end, and a carrying mechanism used for carrying LCD glass to the front-side cutting mechanism, the turnover mechanism, the reverse-side cutting mechanism and the material collection mechanism from the feeding mechanism in sequence is further arranged on the rack. The LCD glass cutting system effectively solves the problems that in an existing LCD glass cutting process, the automation degree and continuation degree are low, single cutting equipment or two pieces of independent cutting equipment are generally adopted for achieving cutting, feeding, discharging and material collection need to be conducted manually, the work efficiency is low, the precision is low, and the product yield is influenced by errors which are easily caused by manual operation.
Owner:ANHUI GOLDEN VISION OPTOELECTRONICS TECH

Method and apparatus for aggregating links

The embodiment of the invention discloses a method and apparatus for aggregating links. A specific embodiment of the method comprises the following steps: if a link aggregation control protocol message sent by an opposite end that has implemented the link aggregation is detected, parsing the link aggregation control protocol message to generate an analysis result; recording a port identifier of aport receiving the link aggregation control protocol message, and generating an analysis result record comprising the analysis result and the port identifier; selecting a target analysis result recordin a analysis result record set based on the analysis result record and the pre-generated analysis result record set, and executing the following aggregation group creation steps: creating an aggregation group, and adding the port identifier and the port identifier in the target analysis result record to the created aggregation group; and if it is determined that the state of the added aggregation group is a dynamic aggregation state, generating information for characterizing aggregation group creation success. By adoption of the embodiment, errors caused by manual operation are reduced, andthe efficiency of link aggregation is improved.
Owner:BEIJING BAIDU NETCOM SCI & TECH CO LTD

Wireless sensor network data aggregation algorithm

The invention discloses a wireless sensor network data aggregation algorithm, which is characterized in that the algorithm is formed by a space-time clustering algorithm and an adaptive energy-aware neighbor-assisted projection regeneration coding method. The algorithm provided in the invention uses the space-time clustering algorithm to build a clustering-type network structure, and by using theadaptive energy-aware neighbor-assisted projection regeneration coding method based on projection regeneration coding, energy-aware routing metric and an inter-cluster neighbor assistant mechanism, data of each sensor node are compressed, transmitted, merged and aggregated. The algorithm provided in the invention balances data compression gains, aggregation efficiency and energy consumption for compression, aggregation and storage of data in the network, the problem of energy consumption of a large-scale wireless sensor network node is solved, and the network security, the reliability and thestability are ensured.
Owner:HENNAN ELECTRIC POWER SURVEY & DESIGN INST

CO2 gathering agent for soil

PendingCN110041119APhysical influenceActivate physiological structureNitrogenous fertilisersOrganic fertilisersFiberArginine
The invention discloses a CO2 gathering agent for soil. The CO2 gathering agent is prepared from, in parts by weight, 30-40 parts of peat soil, 8-12 parts of L-arginine and 10-30 parts of expanded vermiculite. The CO2 gathering agent for the soil takes the peat soil, L-arginine and the expanded vermiculite as main raw materials, has better gathering performance on CO2 gas and produces no side products during adsorption; 3-butenamine hydrochloride, a zeolite molecular sieve, an imidazole framework material, sodium humate, photosynthetic bacteria, ethylindole-3-carboxylate, cocoanut fiber, 2-aminobenzimidazole and polyethylene polyamine are added to host materials in a corresponding proportion, the gathering efficiency of the CO2 gathering agent is further increased, the CO2 gathering agenthas remarkable effects on the physical property of the soil, the photosynthetic gathering and controlled release capability of plants is notably improved, and the physical structure of the soil is activated.
Owner:河南丰汇农业技术有限公司

Advertisement data aggregation query method and device

The embodiment of the invention provides an advertisement data aggregation query method and device. According to the embodiment of the invention, time information of advertisement data which terminalequipment needs to query is divided according to different time granularities to obtain time periods of the different time granularities; aggregation results of advertisement data in the time periodsof all the time granularities are respectively queried according to the time periods of the different time granularities; and then the aggregation results of the advertisement data in the time periodsof all the time granularities are aggregated into an aggregation result of the advertisement data in a time length on which the terminal equipment needs to carry out a query. Therefore, compared withcarrying out aggregation by the prior art on the basis of daily records of display, clicking and advertiser consumption, the method improves aggregation efficiency, and also improves query efficiencyof the aggregation result at the same time.
Owner:ALIBABA (CHINA) CO LTD

Sewing thread packaging assembly line

The invention relates to the technical field of product packaging, and discloses a sewing thread packaging assembly line which comprises a circulating feeding mechanism, one side of the circulating feeding mechanism is connected with a conveying belt, a material blocking mechanism is installed on the outer wall of one side of the conveying belt, a marking machine is arranged on the outer wall of the other side of the conveying belt, and a feeding mechanism is installed at the top of one side of the conveying belt. According to the sewing machine, the circulating feeding mechanism is arranged at the front end of the assembly line, uniform circulating feeding of the sewing bobbins is achieved, the sewing bobbins are prevented from being stacked on the surface of the conveying belt, and under the action of the material blocking mechanism arranged on the outer side of the conveying belt, the sewing bobbins are conveyed on the surface of the conveying belt at equal intervals; the uniformity and accuracy of follow-up packaging and processing of the sewing bobbins on the surface of the conveying belt are guaranteed, under the action of the feeding mechanism arranged at the tail of the conveying belt, the sewing bobbins on the surface of the conveying belt are placed towards the surface of the conveying plate under the action of the clamping plates, and the sewing bobbins are stably conveyed by the conveying plate through the fixing columns.
Owner:上海沛福包装机械有限公司

Photoelectric diode device

The invention provides a photorectifier device which comprises a first type substrate provided with two first type transistors, a second heavy doping-typed well arranged in the first type substrate and positioned between the two first type transistors, a first doping-typed doping area arranged on a shallow surface in the first type substrate and positioned between the two first type transistors, a second doping-typed doping area arranged on the shallow surface in the first type substrate and positioned between the first doping-typed doping area and the first type transistors, and a contact jaw contacted with the first doping-typed doping area and arranged on the surface of the first type substrate. Therefore, the invention provides the photorectifier device which can lead electronic accumulation to be more effective and has the effect of eliminating saturation diffusion and the advantage of improving the problem of crosstalk.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP

Recirculating aquaculture process suitable for larimichthys crocea

The invention relates to a recirculating aquaculture process suitable for larimichthys crocea. The process comprises the following steps: 1, killing parasites in the waste water where fish is cultured; 2, filtering suspended solids, colloids and large impurities in the water treated in the step 1; 3, pumping the water treated in the step 2 to a settling pond to settle; 4, pumping the water at the upper part of the settling pond to a protein separator, and separating protein substances or organic matters in the water; 5, further filtering residues in the water treated in the step 4 biologically, and carrying out nitration; 6, aerating the water treated in the step 5, and nitrating the residues; 7, sterilizing the water filtered in the step 6, and pumping the water to each culture pond. According to the process, the consumption of water resources is low, the spaced occupied and the environmental pollution are small, a product is high in quality and density and is safe, the utilization ratio of resources is high, the parasites in the recirculating water are killed, and the difficult problem in the prior art that the larimichthys crocea cannot be cultured in the recirculating water is solved.
Owner:FUJIAN MINDONG AQUATIC PROD RES INST

Reaction kettle for processing of chemical raw materials

The invention discloses a reaction kettle for processing of chemical raw materials. The reaction kettle comprises a body provided with a driving motor at the top. An output end of the driving motor isfixedly connected with a revolving shaft; the end, away from the driving motor, of the revolving shaft penetrates the upper surface of the body and extends into the body; a partition plate is arranged in the body, both left and right ends of the partition plate are fixedly connected with the inner side wall of the body; a supporting post is fixedly connected with the upper surface of the partition plate, and a first bearing is fixedly connected to the top of the supporting post; the end, away from the driving motor, of the revolving shaft penetrates the inside of the first bearing; the outersurface of the revolving shaft is fixedly connected with an inner ring of the first bearing, a stirring rod and a connecting ring. The reaction kettle for processing of chemical raw materials has theadvantages of simple structure, high operation efficiency and long service life.
Owner:陈洁

Natural gas wet desulphurization and regeneration integrated apparatus

A natural gas wet desulphurization and regeneration integrated apparatus comprises a regeneration separating reactor and a filter circulating skid, and is designed in a two layer manner, the regeneration separating reactor is at the upper layer, the filter circulating skid is at the lower layer, and the regeneration separating reactor and the filter circulating skid are separated by a skidding rack; the regeneration separating reactor comprises an injection chamber A, a separation chamber B, a sulfur foam chamber C and a lean solution chamber D which are arranged from left to right, the injection chamber A is communicated with the separation chamber B, and the separation chamber B is communicated with the sulfur foam chamber C through an overflow plate, and is communicated with the lean solution chamber D through a flashboard; an injection device is arranged at the central portion of the injection chamber A from top to bottom, and the upper top of the separation chamber B is horizontally provided with a sludge scraper; and the filter circulating skid comprises a blower connected with the separation chamber B through a gas distribution tube, a rotary drum filter connected with the bottom of sulfur foam through a sulfur foam outlet tube, a separator connected with a liquid outlet of the rotary drum filter, a vacuum pump connected with the separator, and a lean solution pump connected with the bottom of the lean solution chamber D.
Owner:CHINA PETROCHEMICAL CORP +2

Transaction data collection method, apparatus and device

The embodiment of the invention discloses a transaction data collection method, apparatus and device. The method comprises the steps of: when a settlement period is reached on that day, if there is nosuspended trade at present and there is no transaction data in collection processing, determining and obtaining the starting time point and the end time point of the transaction data, obtaining transaction data of payment receiving time in the period from the starting time point to the end time point, wherein the transaction data obtained according to the payment receiving time comprises the transaction data of the suspended trade to obtain all the transaction data on that day and perform collection processing of the obtained transaction data to calculate the balance variation condition of accounts through collection processing and perform balance variation operation of the accounts through collection processing.
Owner:ADVANCED NEW TECH CO LTD

Discharging box and drying and classifying equipment

The invention discloses a discharging box and a set of drying and classifying equipment comprising the discharging box. The discharging box (20) comprises a box body (21), a first material stop plate (25) and a second material stop plate (26), wherein the first material stop plate (25) and the second material stop plate (26) are arranged in the box body. A feed port (22), a discharge port (23) and an air outlet (24) are formed in the discharging box and are mutually communicated. The feed port is horizontally arranged, and the discharge port and the air outlet are formed in the bottom and the top of the box body respectively. The first material stop plate is arranged toward the feed port, and the second material stop plate is arranged below the air outlet. Most fine-particle material in material entering the discharging box can be separated from an air stream through collision with the first material stop plate and thus can fall into the discharge port through self weight; a small amount of fine-particle material will flow toward the air outlet under the pumping action of a pumping device and be separated from the air stream through collision with the second material stop plate, and thus can also fall into the discharge port through self weight. Therefore, the discharging box can promote material collecting efficiency and reduce equipment abrasion.
Owner:ZOOMLION HEAVY IND CO LTD

Segmented activator injection mode for generating blocking effect by activating microorganisms in oil reservoir

The invention discloses a segmented activator injection mode for generating the blocking effect by activating microorganisms in an oil reservoir. The segmented activator injection method comprises thefollowing step that a segmented activator composed of following different types activators is injected into a target formation of an oil field in a segmented mode to form a main slug according to thefollowing sequences (1) the phosphorus source activator, (2) the nitrogen source activator, (3) the activator containing inorganic salt and trace elements, and (4) the carbon source activator. The activator with the different components is injected in the segmented mode, thus all ingredients in the activator can reach the predetermined target position to form a complete activator system, the endogenous functional microorganisms of the oil reservoir are successfully activated, the efficiency that the microorganisms are gathered towards the blocking position is improved, thus the effect water blocking effect is exerted, and the crude oil recovery rate is increased.
Owner:北京润世能源技术有限公司

Backlight unit

The present invention relates to a back light unit. Particularly, the present invention relates to a back light unit which can increase the efficiency of light condensation. A back light unit according to the present invention comprises a light source unit; a light guiding plate for changing and emitting the light incident from the light source unit into surface light, and having a means for preventing light loss on an incident surface facing the light source unit; and a prism sheet located on the upper surface of the light guiding plate, each prism facing the light guiding plate. Preferably, the means for preventing light loss is protuberantly formed on the incident surface toward the light source unit, or in the form of prism on the incident surface. And, preferably, the means for preventing light loss is a fresnel lens attached onto the incident surface. Preferably, the means for preventing light loss has an oblique surface which is curved. The back light unit further includes a reflective sheet (130) located on the lower surface of the light guiding plate to reflect the light emitted from the light guiding plate.
Owner:LG ELECTRONICS INC

Data annotation method and device, and electronic equipment

The invention discloses a data annotation method. The method comprises steps of obtaining original data to be annotated; creating a plurality of labeling tasks for labeling the original data, wherein every two labeling tasks have a dependency relationship; outputting a data annotation result after any annotation task is executed, and transmitting the data annotation result to a next annotation task having a dependency relationship with the data annotation result so that the next annotation task depends on the data annotation result to execute data annotation; and according to the dependency relationship between the labeling tasks, sequentially executing each labeling task, receiving a data labeling result of each labeling task, and summarizing the data labeling results according to the dependency relationship to obtain labeled data. The invention further discloses a data annotation device and electronic equipment.
Owner:BEIJING GRIDSUM TECH CO LTD

Concealed pipe salt and alkali removal device

The invention belongs to the related technical field of high-saline-alkali soil and ash modification, and discloses a concealed pipe salt and alkali removal device which comprises a plurality of concealed pipes, outlets of the concealed pipes are connected with a water collecting device, each concealed pipe comprises a water conveying pipe and an exhaust pipe arranged in the water conveying pipe, a plurality of first small holes are formed in the surface of each exhaust pipe, and outlets of the exhaust pipes are connected with exhaust pumps; and a plurality of second small holes are formed in the surface of each water conveying pipe, and first permeable geotextile is arranged on the outer surface of each water conveying pipe. Evaporation is increased by accelerating flowing in the concealed pipes, so that water is timely discharged from the concealed pipes, flowing of the water to underground water is effectively reduced, enrichment of salt and alkali substances is reduced, and simplicity and high efficiency are achieved.
Owner:HUAZHONG UNIV OF SCI & TECH

Marine environment monitoring system based on ship and wireless sensor network

The invention provides a marine environment monitoring system based on a ship and a wireless sensor network, which comprises a ship body, an upper computer, a wireless sensor and a microorganism collection mechanism, and is characterized in that the microorganism collection mechanism is arranged below the ship body and comprises a hydraulic rod, a lifting plate, an electric turntable, a porous elastic rolling plate, a fiber bundle and a flow direction detection mechanism; after the ship body is moved to a to-be-monitored area, the lifting plate, the electric rotary table and the porous elastic rolling plate are lowered into seawater through the hydraulic rod, when the seawater flows through the porous elastic rolling plate, microorganisms can be attached to fiber bundles, collection of the microorganisms is achieved, the flowing direction of the seawater can be detected through the arranged flowing direction detection mechanism, and the orientation of the porous elastic rolling plate is changed through the electric rotary table, so that the flow direction of seawater is always perpendicular to the porous elastic rolling plate, and the collection effect of microorganisms is ensured, so that the marine environment can be monitored according to the variety and number of the collected microorganisms, and resource utilization, disaster prediction, environment investigation and the like are realized.
Owner:HAINAN CHAOCHUAN E-COMMERCE CO LTD

A kind of preparation method of polyaluminum calcium silicate-sodium alginate composite flocculant

The invention discloses a preparation method of a poly-aluminum silicate calcium-sodium alginate composite flocculating agent. The preparation method comprises following steps: a sodium silicate solution with a concentration ranging from 0.15 to 0.20mol / L is prepared, the pH value of the sodium silicate solution is adjusted, and activation is carried out so as to obtain a light blue polysilicic acid solution; 0.3 to 0.8mol / L aluminium salt and 0.6 to 1.0mol / L of calcium salt are added into the light blue polysilicic acid solution, and activation is carried out so as to obtain a poly-aluminum silicate calcium flocculating agent; a sodium alginate solution obtained through pre-treatment is added into the poly-aluminum silicate calcium flocculating agent, water bath stirring is carried out, an obtained product is subjected to standing and aging so as to obtain the poly-aluminum silicate calcium-sodium alginate composite flocculating agent. According to the preparation method, the inorganic-natural organic composite flocculating agent prepared from sodium alginate and poly-aluminum silicate calcium through combination possesses the advantages of inorganic flocculating agent and naturallarge molecules. The preparation method is simple in operation; the raw materials are easily available; the cost is low; the poly-aluminum silicate calcium-sodium alginate composite flocculating agent is nontoxic, is friendly to the environment, is degradable, and can be widely used in the fields of domestic water and industrial wastewater processing.
Owner:JILIN INST OF CHEM TECH
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