45results about How to "Alleviate social problems" patented technology

The invention relates to a sectional type modularization rapid assembled and spliced bridge which comprises springboard bridge sections (1) and standard bridge sections (2). Each springboard bridge section (1) comprises a top board (11), a web (12), a bottom board (13), a pressure bearing interlocking end board (14) and a negative head and positive head connecting lug board (15). Each standard bridge section (2) comprises a top board (21), a web (22), a bottom board (23), a pressure bearing interlocking end board (24) and a negative head and positive head connecting lug board (25). The springboard bridge sections (1) and the standard bridge sections (2) are fixedly connected through the pressure bearing interlocking end boards (14), the negative head and positive head connecting lug boards (15), the pressure bearing interlocking end boards (24) and the negative head and positive head connecting lug boards (25). Every two standard bridge sections (2) are fixedly connected through the pressure bearing interlocking end boards (24) and the negative head and positive head connecting lug boards (25). Every two assembled and spliced bridges are fixedly connected through a transverse connecting arm (3). The sectional type modularization rapid assembled and spliced bridge has the advantages of being convenient to transport, flexible to assemble and splice, capable of being erected rapidly, and particularly suitable for releasing emergencies and disasters. The webs are made of corrugated steel, and the bottom boards are made of laminated composite materials.

The invention discloses a system for preparing a sulphoaluminate superhigh water filling material by using industrial solid waste and a method thereof, and relates to a method for producing the superhigh water filling material by using a matrix material. According to the invention, ferro-silico-aluminum based solid waste such as gangue and calcium sulfate based solid waste such as desulfurized gypsum are taken as the raw materials, the above raw materials are subjected to grinding, homogenizing, sintering and clinker grinding, and the matrix material is prepared. The matrix material is taken as a core material, a specific additive is taken as an auxiliary material, through a certain construction technology, and the superhigh water filling material with highest water content of 97% can be used for backfill of a goaf such as coal mine. In the invention, complementation and utilization of a plurality of large industrial solid and waste can be realized, the produced superhigh water filling material has high cost performance, can substitute the high-quality mineral product resource, and can greatly increase the added value of the large industrial solid waste regeneration products.

The invention discloses a forced disturbance source location method based on power and frequency fluctuation phase, which includes the following steps: S1: select an area with obvious power oscillation according to the system power data obtained by a wide-area measurement system; S2: select the bus in the area Frequency and branch power data are preprocessed; S3: Extract the dominant frequency of the forced oscillation, and obtain the signal amplitude and initial phase by the least square method to obtain the corresponding initial phase of fluctuation; S4: Calculate the bus frequency fluctuation and the connected The absolute value of the phase difference of the power fluctuation of the branch, formulate the criterion of the oscillation energy flow on the branch; S5: locate the disturbance source according to the criterion. The invention avoids the introduction of the whole network model to increase the analysis error and reduce the reliability, and greatly reduces the complexity of online monitoring and analysis.

The embodiment of the invention provides a method and device for recommendation of shared accommodation information. The method comprises: receiving the shared accommodation information registered by a user; matching the shared accommodation information registered by the user and the shared accommodation information to be shared registered by another user, and obtaining the shared accommodation information matching the shared accommodation information registered by the user in the shared accommodation information to be shared registered by another user; and pushing the shared accommodation information matching the shared accommodation information registered by the user to the user. The method and device for recommendation of shared accommodation information according to the embodiment of the invention can match the shared accommodation information registered by the user and the shared accommodation information to be shared registered by another user to obtain the shared accommodation matching the shared accommodation information registered by the user so as to allow users to share the accommodation with people having the similar tastes and interests and the same background and reduce the occurrence probability of social issues.

The present invention relates to the construction method and application of one kind of human neurenergen-3 receptor gene (human TrkC gene) recombined adenovirus expressing vector. The basic scheme of the present invention includes: designing and synthesizing primer, RT-PCR process, construction and identification of cloned shuttle vector pShuttle-TrkC, construction and identification of recombined adenovirus vector pAdeno-TrkC, 293 cell packaging, identification of recombined adenovirus, bioactivity detection of human neurenergen-3 receptor gene recombined adenovirus expressing vector and other steps. The present invention is superior in that one kind gene recombined adenovirus expressing vector is selected to promote the survival of damaged central neure and the regeneration of axone, to promote nerve stem cell to differentiate into more neures to replace damaged or dead neures.

The invention relates to a preparation method of a multi-effect organic foliage conditioner, which comprises the following steps: mixing biomass charcoal and water in a mass ratio of 1:(20+/-5), stirring uniformly to obtain a mixed solution, leaching the mixed solution at the high temperature of 80-85 DEG C for 3+/-1 hours, oscillating in an oscillating table at the rotation speed of 180+/-30 r/min for 24+/-3 hours to obtain a biomass charcoal extracting solution, and carrying out vacuum filtration on the biomass charcoal to obtain the liquid foliage conditioner of which the pH value is 8-11 and the total organic carbon (TOC) content is 297-566.7 mg/L. On the premise of reducing the input of the inorganic fertilizer, the foliage conditioner can increase the yield by 58.94%, obviously enhances the contents of vitamin C and soluble proteins in pakchoi, lowers the content of nitrates, and improves the grade and safety quality of vegetables.

The invention relates to a system based on WEBGIS (web geographic information system) technology platform for monitoring bridge group health. The system includes a WEBGIS platform and a bridge health monitoring system, wherein the WEBGIS platform is combined with the bridge health monitoring system. The system has the characteristics that: according to requirements of a user, geographic information data of a corresponding area is obtained, a spatial database of the area is built, the three-dimensional map of the area is constructed, an expressway net and nodes of bridges and tunnels are marked, a routine interface and an access interface are built in the spatial database, the routine interface is linked with the bridge health monitoring system, the access interface is provided for a client side, and a client operates the displaying and accesses the bridge health monitoring system; and a health monitoring center is established, a server, a monitoring computer, a network and monitoring personnel with high academic level in the aspect of bridges, which are required by the system, are configured, the WEBGIS platform is established at the health monitoring center, and the monitoring personnel manage the health monitoring system of every bridge, therefore the real-time monitoring and the decision making support can be realized on the summarized information of local bridges.

The invention provides a typhoon near-surface wind eye radius identification method based on measured data of a weather station. Against the problems of large deviation between the traditional typhoonstatic model and dynamic model calculation results and actual changes in a near-surface wind field and the calculation consumes time, the measured extreme wind speed of a ground automatic weather station during a strong typhoon serves as a data source, the weight is designed by depending on the distance between the automatic weather station and the center of the typhoon, and the radius of a windeye is calculated quickly by weighting. According to the typhoon near-surface wind eye radius identification method, dynamic changes of a near-surface typhoon wind eye area during the strong typhoon can be effectively restored, thereby being favorable for quick locking of an electric transmission line in a wind eye coverage area by a power grid dispatching operation department and disaster damageevaluation.

The invention discloses a phasor-based forced disturbance source locating method for generators, comprising the following steps: S1) selecting a power generating set with power oscillation amplitude exceeding a threshold range according to a power system oscillation warning signal; S2) obtaining the real time measured data of the electrical power, the frequency or speed, the machine terminal current and the excitation current outputted from the selected power generating set; S3) preprocessing the real-time measured data and obtaining a dominant forced oscillation mode, and calculating the corresponding electric fluctuation quantity phasors in the dominant forced oscillation mode; and S4) locating the forced disturbance source for the generators according to the relationship between the corresponding electrical fluctuation quantity phasors of the generators and further determining the control system where the forced disturbance source is located. According to the invention, the method analyzes the relationship between the corresponding electrical fluctuation quantity phasors on two control channels, locates precisely the generator set where the forced disturbance source exists and judges whether the forced disturbance comes from a speed regulating system or an excitation system; this is of great significance to cut off a forced disturbance source quickly and effectively suppress forced oscillation.

The invention aims to provide a management system for collecting, managing, inquiring and filing traffic engineering material archives in real time based on the Web geographic information system (GIS) technology to guarantee that sub-part subdivisional project can be intuitively filed, managed and inquired in the process of construction and in the completion acceptance in the field of traffic. The traffic engineering archive management system based on the Web GIS comprises a traffic engineering archive management system external module based on a WebGIS platform and a traffic engineering archive management system terminal WebGIS platform internal module. Due to the fact that the asynchronous JavaScript and XML (Ajax) technology and the JavaScript technology are mutually joined, supervision, management and query of individual item, unit project, sub-part and subdivisional project archives in the existing traffic engineering are achieved. Improvement of management of safety, quality, cost, schedule and information of the traffic engineering is provided with infallible data and corresponding reference due to the fact that the traffic engineering archives are managed.

The invention relates to a neural stem cell derived tissue engineering spinal cord tissue for simulating a spinal cord tissue structure and main cell constituents. The neural stem cell derived tissue engineering spinal cord tissue is obtained by in-vitro culture and construction through a biological tissue engineering technology and a neural stem cell induced differentiation technology, and has a white matter like structure in the peripheral part and a grey matter like structure in the central part. CNTF (ciliary neurotrophic factor) gene modified oligodendrocyte precursor cells (OPCs) are planted in the white matter like structure; and NT-3 gene and receptor thereof TrkC gene modified neural stem cells (NSCs) are planted in the grey matter like structure. When being transplanted to a spinal cord complete transection injury site, the tissue engineering spinal cord tissue has favorable cell activity and can secrete neurotrophic factors to accelerate regeneration of spinal cord injured central neuron axons; and the tissue engineering spinal cord tissue can realize corresponding functions of oligodendrocytes and neurons, and serves as a neural information transfer relay to form a synaptic connection with regenerated nerve fibers so as to repair spinal cord injured neural circuits. The tissue engineering spinal cord tissue can also be used as an in-vitro model for neural pharmacology and neural development researches.

The invention relates to a smart home voice control method based on an android platform, and belongs to the technical fields of an android system, a wireless technology and voice identification. The method comprises the following steps: A, in the Android system, automatically adding a Chinese name to each smart home equipment and additionally adding corresponding ID numbers; B, after the Android system acquires audio according to a specific sampling rate, compressing an audio file, and then sending the compressed audio file to a server voice identification module through a network to perform voice processing; C, returning a result obtained after the voice processing to the Android system by a central server, and matching the result with data stored in a database; and D, after the matching is completed, sending the ID numbers corresponding to the Chinese names to a gateway through the network by the Android system, and achieving operation for smart home through the gateway.

The invention discloses a preparation method of a high-toughness cement-based material, which comprises the following steps of: pretreating straw plant fibers, and doping a cement base with the pretreated straw plant fibers. The modified cement-based material is obtained by mixing straw plant fibers, cement, sand, a polycarboxylic acid water reducing agent and water, wherein relative to 1000 kg of cement, the use amount of the plant fibers is 0-200 kg, the use amount of the sand is 2700-3200 kg, and the use amount of the water is 500-800 kg. According to the invention, the plant fibers are modified, and the composite material of the plant fibers treated by a sodium hydroxide solution has good compressive strength and breaking strength, and also has good plasticity, toughness, crack resistance and tensile resistance. The fiber-reinforced cement-based material is prepared by taking agricultural waste straw plants as a main raw material, and the method is beneficial to reducing the manufacturing cost, saving resources and solving the pollution of waste to the environment, so that the environment is protected.

The invention provides a method for predicting the occurrence risk of extrahepatic adverse outcomes of a thin non-alcoholic fatty liver disease (NAFLD) patient within 5 years, and relates to the field of artificial intelligence and medical application, and the method comprises the steps: collecting clinical baseline data of the thin NAFLD patient, carrying out LASSO regression on the data, and carrying out initial multi-factor cox regression model to obtain a prediction model containing risk factors, after the model distinction degree is verified, each risk factor is assigned to draw a column diagram, the column diagram is converted into an application program, and the risk of an extrahepatic adverse outcome of a patient can be obtained by inputting risk factor data of the patient, so that screening of high-risk groups in thin NAFLD patients is facilitated, early intervention is performed, and social and personal burdens are relieved.

The invention discloses a thin-wall square steel tube-phosphogypsum hollow section composite wall and a manufacturing method. The manufacturing method is characterized in that arranging thin-walled square steel tubes at certain intervals is carried out, then flat steel strips are mounted on the thin-walled square steel tubes by adopting self-tapping screws, the distance between the flat steel strips can be determined by design calculation, after all the flat steel strips are mounted, a steel skeleton of the composite wall is formed; and then, wall panels are installed on the two sides of the steel skeleton by utilizing the self-tapping screws special for the wall panels to serve as a template for pouring phosphogypsum, a built-in core mold for guaranteeing the hollow section of a wall bodyis inserted, then the phosphogypsum is poured, after the phosphogypsum is initially set, the core mold is taken out, and manufacturing of the thin-wall square steel pipe-phosphogypsum hollow sectioncomposite wall is completed. Afterwards, after the strength and the water content required by the design are achieved through maintenance, the thin-wall square steel tube-phosphogypsum hollow sectioncomposite wall can be transported to a construction site and installation is carried out. The thin-wall square steel tube-phosphogypsum hollow section composite wall has high axial compression and lateral bearing capacity and good heat preservation, heat insulation and fire resistance, meanwhile, a new direction can be developed for comprehensive utilization of the phosphogypsum, and the compositewall is a novel composite wall which is excellent in performance, simple in structure and capable of saving cost.

The invention discloses an optimization method of an electric vehicle driving path based on network reconstruction and belongs to the technical field of driving path optimization methods. According to the optimization method, a power distribution network reconstruction method is adopted to cope with network attacks, the mathematical model of the method is a double-layer optimization model, the upper layer is a power distribution network reconstruction model, the model takes node voltage of a power distribution network as a target function and screens charging piles according to per unit values of the node voltage, and provides data support for the target function and constraint conditions of a path optimization model; and the lower layer is a path optimization model, and the model takes minimization of the driving distance and the charging cost of the electric vehicle as a target function to find an optimal driving path for the electric vehicle. According to the optimization method of the invention, the reliability and stability of the power distribution network can be improved to a great extent, and the operation pressure of the power distribution network after being attacked can be relieved; and meanwhile, the cost and time of a user are saved, and social and economic losses caused by traffic jam and traffic accidents can be reduced to a certain extent.