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1233results about How to "Achieve balance" patented technology

Process for internally heated continuous preparing biomass pyrolysis gasification gas and rotary furnace utilized by same

The invention discloses a process for integrally heated continuous preparing biomass pyrolysis gasification gas and a rotary furnace utilized by the same. At a furnace tail cooling section, red charcoal at a temperature of 600-800 DEG C after pyrolyzing and destructive distilling reacts with steam generated by cooling spray water on the lower portion in the furnace so as to absorb large quantities of heat and simultaneously generate water gas and semi-water gas. Heat generated by burning recycled gas and air is used for maintaining pyrolysis temperature of biomass material layers and providesenough heat for further, pyrolysis, destructive distillation and steam decomposition reaction. By aid of the heat, biomass inside the furnace is pyrolyzed and destructively distilled to generate large quantities of volatile matters, and the biomass is gradually heated to decompose destructive gas with high heat value. The rotary furnace utilizes a three-section design: a first section is a furnace head preheating section, which is mainly used for preheating and drying raw materials, a second section is a rotary furnace body pyrolysis section, which is mainly used for pyrolysis and destructivedistillation and is a core operation portion of the furnace, and a third section is a furnace tail cooling section, which is mainly used for cooling charcoal. Prepared gas is high in heat value, and devices occupy small space.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY +1

Wireless sensor network multi-source data fusion method based on queries

The invention relates to a wireless sensor network multi-source data fusion method based on queries. The wireless sensor network multi-source data fusion method based on the queries comprises clustering, interest spreading and data transmission. In the clustering process, node residual energy to cluster, density of a node placed area and the distance from cluster heads to a base station are utilized. In the interest spreading process, a sink node firstly spread interest news to all cluster heads which then determine whether interest is spread inside clusters according to actual conditions. In the data transmission process, a neighbor node large in priority is chosen as a next jumping node. A priority function enables query data to be transmitted to the sink node along the route which is small in energy consumption, large in residual energy and short in distance according to introducing of neighbor node positions, the fact that whether introduced nodes are source nodes or the cluster heads, residual energy, communication cost of two nodes and the like, and data fusion is performed on the data intersecting position. The wireless sensor network multi-source data fusion method based on the queries can effectively balance node energy consumption in networks, improve energy using efficiency and prolong a network life cycle.
Owner:JIANGNAN UNIV

Method for enabling macro base station UE to access home base station and method for controlling interference of home base station

The invention discloses a method for enabling a macro base station UE to access a home base station. In the method, all home base stations in the coverage area of a macro base station perform uplink network access to the macro base station, inform of the macro base station that the accessed base stations are home base stations and transmit own identification information to the macro base station;the macro base station estimates the geographic positions of the home base stations in the coverage area and UE in the activated state, determines the home base stations adjacent to the geographic position of the UE based on the estimation and transmits a neighboring area list containing information of the home base stations to the UE. The invention also discloses a method for controlling interference of a home base station. By using the invention, UE can acquire a neighboring area list containing relevant information of home base stations near the UE, so that the UE can be switched to the home base station from the macro base station. Besides, by using the invention, the interference of the home base station on the macro base station can be effectively controlled, thereby balancing the coverage area of the home base station and the interference on the macro base station.
Owner:TD TECH COMM TECH LTD

Distributed type power supply zone branch circuit three-phase load current balance monitoring method and device

The invention discloses a distributed type power supply zone branch circuit three-phase load current balance monitoring method and device and belongs to the field of power supply and distribution devices. At least one three-phase load current balance main controller is arranged, load current signals of each phase circuit in each branch loop are collected, according to the obtained load current signals of each phase circuit, the three-phase current unbalance rate or the mean value of the three-phase current unbalance rate of each branch loop is computed, and the unbalance situation of three-phase load current of each branch loop is judged. The magnitude of load current in each unit meter box of each branch loop is collected, and the phase of unit meter box load which needs to be adjusted is determined. According to the three-phase load current unbalance situation of a certain branch, a control instruction is issued to an automatic phase-changing switch in a unit meter box corresponding to the branch loop, converting of load phases is carried out, adjusting of three-phase load current balance of each branch loop on the low-voltage side of a distribution transformer is achieved, and the real balance of distribution transformer low-voltage side main loop three-phase load current is guaranteed.
Owner:宿迁卡诗博工贸有限公司

Weeding robot with adjustable center of gravity for paddy fields

InactiveCN102696294ALower center of gravityReal-time monitoring of distributionSoil-working equipmentsWhole bodyPaddy field
The invention relates to a weeding robot with the adjustable center of gravity for paddy fields. The weeding robot comprises a hub driving type caterpillar track device, a caterpillar track lifting device, an extension movement device and a slider balance device. The hub driving type caterpillar track device is used for driving a hub through a hub motor, thereby driving caterpillar tracks to run, enabling the robot to walk between rice seedling lines, pressing weeds into mud and even cutting off or pulling out weeds; the caterpillar track lifting device and the extension movement device are used for realizing the lifting and extension of the caterpillar track device so that line changing walking and field ridge crossing walking can be carried out; the slider balance device is matched with the caterpillar track lifting device and the extension movement device and is used for adjusting the center of gravity of the robot and realizing the self balance of the whole body of the robot in the line changing process and the field ridge crossing process and the self-restoring function after the robot sinks into a pit in a paddy field environment with pits; and the weeding robot has the advantages of simple structure, small volume, light weight, convenience in carrying and high universality.
Owner:SOUTH CHINA UNIV OF TECH

Method for pollution-free production of sodium chromate by pressure leaching of chromite

The invention belongs to the field of chromite hydrometallurgy and chromium chemical industry, and in particular relates to a method for the pollution-free production of sodium chromate by pressure leaching of chromite. The method comprises the following steps of: 1) reacting the chromite with oxidizing gas in solution of NaOH; 2) diluting the product obtained by the step 1) and making subcrystalline sodium chromate to fully enter a liquid phase; 3) performing solid-liquid separation on the solid-liquid mixed slurry obtained by the step 2); 4) adding calcium oxide into the obtained diluent for removing impurities; and 5) evaporating and crystallizing the obtained solution without the impurities to obtain a sodium chromate crystal and crystallization mother solution; after the solid-liquid separation, rinsing the sodium chromate crystal by using saturated solution of sodium chromate; and drying to obtain a qualified sodium chromate product. The method has the advantages of simple reaction system component, no difficultly separated phase introduced in the system, contribution to high-efficiency separation of the sodium chromate, great reduction in reaction temperature, low energy consumption, effective reduction in production cost of the sodium chromate, and high chromium leaching yield.
Owner:HUBEI ZHENHUA CHEMICAL CO LTD

Upper limb rehabilitation exoskeleton based on space gravity balance

The invention discloses an upper limb rehabilitation exoskeleton based on space gravity balance, and relates to an upper limb rehabilitation exoskeleton. The upper limb rehabilitation exoskeleton solves the problem that the existing exoskeleton adopting gravity balance principle is complex in structure or cannot completely realize gravity balance. One end of a shoulder joint connecting frame is connected with a shoulder joint upper skeleton; the other end of the shoulder joint upper skeleton is connected with one end of an exoskeleton big arm; a big arm adjusting nut is connected with a big arm adjusting motor; an adjusting component is mounted on the exoskeleton big arm; a small arm motor base is mounted on a shoulder joint lower skeleton; a small arm adjusting nut is mounted at the output end of a small arm adjusting motor; a balance connecting rod is parallel with the exoskeleton big arm; another adjusting component is mounted on the balance connecting rod; an exoskeleton rotating big arm is connected with the exoskeleton big arm through a big arm axial rotating piece; a plurality of binding mechanisms are respectively and fixedly mounted on the exoskeleton big arm and an exoskeleton small arm. The upper limb rehabilitation exoskeleton is applied to upper limb rehabilitation.
Owner:HARBIN INST OF TECH

Genetically engineered bacterium for high-yielding L-valine and method for producing L-valine by fermentation

The invention provides a genetically engineered bacterium for high-yielding L-valine. A construction method of the genetically engineered bacterium comprises the steps that starting from an escherichia coli W3110, an acetolactate synthase gene alsS of a bacillus subtilis is integrated on a genome of the escherichia coli W3110 and subjected to high expression; an escherichia coli ppGpp 3'-pyrophosphoric acid hydrolytic enzyme mutant R290E/K292D gene spoT is integrated on the genome of the escherichia coli W3110 and subjected to high expression; genes of frdA, frdB, frdC and frdD of four subunits of a lactic dehydrogenase gene ldhA, a pyruvate formate lyase I gene pflB and fumaric reductase on the genome of the escherichia coli W3110 are knocked out; a branched chain amino acid transaminasegene ilvE of the escherichia coli is replaced with leucine dehydrogenase gene bcd of the bacillus subtilis; and an acetyl-hydroxyl acid isomerized reductase gene ilvC of the escherichia coli is replaced with an encoding gene of a mutant L67E/R68F/K75E. According to the genetically engineered bacterium for the high-yielding L-valine, an L-valine fermentation method is further modified. Double-phasedissolved oxygen control is adopted, and the L-valine yield and the saccharic acid conversion rate are improved.
Owner:TIANJIN UNIV OF SCI & TECH

Fruit-and-vegetable intelligent irrigation system based on internet of things

The invention discloses a fruit-and-vegetable intelligent irrigation system based on the internet of things. The fruit-and-vegetable intelligent irrigation system comprises an environment detection module, a data collection terminal, an intelligent irrigation decision-making server and an irrigation control terminal, and the environment detection module, the data collection terminal, the intelligent irrigation decision-making server, and the irrigation control terminal are connected in sequence; the environment detection module comprises a soil temperature-and-humidity sensor, a light intensity detector and a rainfall detector; the data collection terminal comprises a first CPU (central processing unit), a first communication module, an AD module, a solar power source and a storage module, and the first communication module, the AD module, the solar power source and the storage module are connected with the first CPU separately; the intelligent irrigation decision-making server comprises an irrigation decision-making inference engine, a storage module, and a computing module, and the storage module and the computing module are connected with the irrigation decision-making inference engine; the irrigation control terminal comprises a second CPU, a control module, a second communication module and an AD module, and the control module, the second communication module and the AD module are connected with the second CPU through a PCI bus.
Owner:苟瀚文

Training method and system of commodity personalized ranking model

The invention relates to a training method and system of a commodity personalized ranking model. The training method comprises the following steps: according to long-term interest characteristics in historical commodity data, carrying out off-line training on the commodity personalized ranking model, obtaining a parameter corresponding to each long-term interest characteristic, i.e. obtaining the commodity personalized ranking model with high precision, and eliminating short-term characteristics in the historical commodity data to reduce time consumption; and at a unit time interval, obtaining real-time commodity data, expanding the commodity personalized ranking model subjected to the off-line training, and carrying out on-line training on the expanded commodity personalized ranking model according to the long-term interest characteristics and the short-term characteristics in the real-time commodity data to obtain an updated parameter corresponding to each long-term interest characteristic and an updated parameter corresponding to each short-term interest characteristic. Therefore the expanded commodity personalized ranking model is updated for one time at the unit time interval to obtain the model with higher timeliness and realize the balance of the precision and the timeliness of the model so as to obtain a better prediction result.
Owner:唯品会(广州)软件有限公司

Fracture-cavity type oil deposit analyzing method for water-flooding development and application thereof

ActiveCN104747180AImprove accuracyFully reflect the impact of development lawsFluid removalDecision takingEngineering
The invention relates to a fracture-cavity type oil deposit analyzing method for water-flooding development and application thereof. According to the method, history matching is conducted on a first geologic feature parameter of multiscale reservoir bodies constructing a multiscale reservoir body distribution conceptual model to obtain a second geologic feature parameter of the multiscale reservoir bodies constructing the finely drawn multiscale reservoir body distribution geologic model. In history matching, the independent representation multi-sided conductivity is adopted for dealing with the influence caused by connection position differences of different side fractures and caves on the oil water flowing rule; the virtual time step is adopted for reflecting the oil water replacement momentary balancing effect caused by oil water density difference; for anisotropy characters of the fractures, the tensor permeability of an arbitrarily fracture of the space is obtained by the adoption of conversion of a geodetic coordinate system and a space coordinates system. The fracture-cavity type oil deposit analyzing method for the water-flooding development is used for conducting fracture-cavity type oil deposit water-flooding development and decisions, the geologic model is more accurate, the flowing rule and the oil-displacement mechanism are more complete, and optimized decision through technologies and development effect predication are more accurate and reliable.
Owner:CHINA PETROLEUM & CHEM CORP +1

Test case generation method and deice, equipment and storage medium

Embodiments of the invention disclose a test case generation method and device, equipment and a storage medium. The method comprises the following steps of: obtaining user behavior data on a terminaland denoising the user behavior data; carrying out training according to the denoised user behavior data so as to obtain a page prediction model, and generating a corresponding relationship between page skipping and user operation; and generating a test case on the basis of the page prediction model and the corresponding relationship between page skipping and user operation. According to the method, the user behavior data is denoised so as to improve the test case generation correctness, the page prediction model and the corresponding relationship between page skipping and user operation are obtained on the basis of the user history behavior data, so that possible operations of users can be predicted, automatic cases can be executed, case quantity can be decreased and feasibility of the cases can be ensured. Moreover, through importing an extension page and a loop occurrence number threshold value, a balance point between prediction and real user operation is realized, case generationfailures caused by incorrect prediction are decreased, and a case set is supplemented at the same time.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD

Loess landslide control system based on ecological remediation

The invention discloses a loess landslide control system based on ecological remediation. After substep square cutting of a loess landslide mass, the side slope of the loess landslide mass is of a multistep structure, a square-cut side slope is formed, single-row slide-resistant piles are arranged on a slide-resistant section on the front portion of the landslide mass, a retaining wall is constructed at the front edge of the landslide mass, a drainage project is constructed on the slope face and periphery of the landslide mass, and a three-dimensional soil engineering grid grass planting protection slope is laid on the slope face of the square-cut side slope. Cutting, retaining, protection and drainage in landslide treatment are combined, the landslide slide force is reduced to the maximum extent, the landslide skid resisting force is increased to the maximum extent, the influence of rainfall on the slope is eliminated, a slope protection system with an ecological function is constructed through a three-dimensional soil engineering grid, the functions of self washout resistance, slide force resisting reinforcement, ecological restoration and the like of the landslide mass are improved, the overall stability of landslide is effectively improved, and therefore the aim of permanently controlling loess landslide is achieved.
Owner:NORTHWEST UNIV(CN)
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