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181 results about "Natural factor" patented technology

Real environment-based concrete cracking whole process test apparatus and method

The present invention provides a real environment-based concrete cracking whole process test apparatus and test method, a main testing machine includes an environmental tank and a concrete specimen containing device arranged in the environmental tank, a specimen is placed in the concrete specimen containing device, a load system is connected with a movable clamp head on the concrete specimen containing device, and simulated real environment is provided in the environmental tank. The method comprises restraining stress, free variables, elastic modulus, deformation separation, and creep and other tests. In the whole process from pouring to hardening of test concrete, under a variety of temperature control conditions, the self temperature stress development process includes adiabatic temperature rise, thermal expansion coefficient, elastic modulus and creep and other parameter development process over time, a real meteorological environment can also be simulated, and temperature stress and cracking mechanism affected by natural factors are simulated. The device can set, according to the needs, different temperature and constraint conditions including thermal isolation, constant temperature, setting of the temperature rise and drop processes, and the like. Through the concrete cracking whole process simulation, concrete crack resistance can be evaluated.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Concrete water cooling overall process testing device and method

The invention provides a concrete water cooling overall process testing device and method. A main testing machine comprises a concrete test sample containing device, and a test sample is placed in the concrete test sample containing device; a loading system is connected with a movable clamping chuck arranged on the concrete test sample containing device, a water cooling simulation system is arranged in a concrete test sample containing space and comprises a water pipe, the water pipe is provided with a water inlet and outlet connecting pipe which penetrates through the containing space to be connected with a water supplying device to form a loop, and the loop is provided with two executing mechanisms, that is, the cooling device and the circulating power device; a flowmeter and a water temperature sensor are arranged in the loop. According to the concrete water cooling overall process testing device and method, the self temperature stress developing process including the developing process of parameters such as adiabatic temperature rise, a thermal expansion coefficient, elasticity modulus and creep along with time of concrete in the overall process from pouring to hardening can be tested under the condition of multiple temperature control measures, and a true meteorological environment can be also simulated to simulate the temperature stress and the cracking mechanism which are influenced by natural factors. The device can set different temperature and constraint degree conditions including insulation, constant temperature, temperature rising and lowering process setting and the like as needed. The crack resistance of the concrete is evaluated through a concrete cracking overall process simulation test.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Industrialized production method of pleurotus eryngii

The invention relates to an industrialized production method of pleurotus eryngii. The industrialized production method of the pleurotus eryngii comprises the steps of strain cultivation, compost preparation and fungus bag manufacturing, inoculating, fungus germination management, bud trimming management, harvesting and packaging. The industrialized production method of the pleurotus eryngii has the advantages that bagasse is used as one of the main materials for the cultivation of the pleurotus eryngii, the range of cultivation materials of the pleurotus eryngii is widened, using capacity of agriculture waste is enlarged, environment pollution is reduced, extension of the industrial chain of sugarcane production is promoted, and due to the fact that the industrialized production method of the pleurotus eryngii can not be influenced by natural factors easily, the pleurotus eryngii can be produced all year round, efficiency is increased by more than 60% compared with the efficiency by adopting a traditional cultivation method, biological efficiency can reach to 60-80%, fungus bag inoculating efficiency is improved due to the fact that battens coated with parent fungi are adopted for the inoculating of the fungus bag, the success rate of the fungus bag inoculating reaches to more than 99.9%, contamination rate of the fungus bag inoculating is reduced, fungus germination is fast, time for the fungus germination of the fungus bag is shortened, and production efficiency is improved.
Owner:FUJIAN SHUNWEI FOOD

Clonal tissue culture breeding method for camphor tree

ActiveCN102860258ASolve the problem of long production cycleSolve the problem of breeding applicationsHorticulture methodsPlant tissue cultureAxillary budLand resources
The invention relates to a clonal tissue culture breeding method for a camphor tree and belongs to the technical field of forest tree tissue culture. The clonal tissue culture breeding method comprises the steps of explant material sterilization, bud induction, bud propagation, rooting induction, rooted-seedling hardening, and transplantation and management of tissue-cultured seedling, and particularly comprises the following steps of: removing the leaves of an annual shoot; cutting the shoot into stems which are respectively provided with 1-2 axillary buds; sterilizing the stems; carrying out induced culture by an inducing medium; carrying out enrichment culture and rooting induction on the obtained new bud; hardening and naturalizing the obtained rooted seedling; and finally transplanting the naturalized seedling into a matrix which is sterilized, and managing the transplanted seedling. Seedling raising by the clonal tissue culture breeding method for the camphor tree, disclosed by the invention, is not affected by natural factors such as season and weather, and besides, production cost is low, land resources are saved, and seedling raising efficiency is improved; meanwhile, with adoption of the clonal tissue culture breeding method disclosed by the invention, the phenomenon of browning can be effectively prevented, the effective reproduction rate is high, the rooted seedling is grown regularly, the culture period is short, the survival rate for the transplanting of the tissue-cultured seedling is high, and the seedling stage culture period is short; and the clonal tissue culture breeding method is significant.
Owner:GUANGDONG ACAD OF FORESTRY

Mechanical hand device

ActiveCN105563514AOvercome the problem of crawlingFlexible grabbingGripping headsNatural factorSpins
The invention provides a mechanical hand device which comprises a rack and at least a pair of grabbing mechanisms synchronously opened and closed, wherein two grabbing mechanisms in each pair are symmetrically arranged; each grabbing mechanism comprises a mechanical arm located at the upper side and a mechanical claw located at the lower side, the upper end of the mechanical arm is articulated on the rack, and the mechanical claw is connected with the lower end of the mechanical arm; and a ducted fan is arranged on the mechanical arm. Through arrangement of the two control mechanisms, the maximum value of the diameter of an article grabbed by a traditional standard mechanical hand is changed, and the mechanical hand device can flexibly grab articles; as the ducted fan is arranged, when the article is grabbed, the mechanical hand device can move horizontally for directed grabbing under the control of the ducted fan, so as to avoid the awkward situation that the article can not be grabbed due to natural factors or other factors; an upper supporting plate is used for fixing a bearing, and a rope is fixed on the bearing, so that the rope can not be fractured due to rotation although the mechanical hand spins in the air; and a buffering piece is also arranged on the rope, thereby enhancing the stressed value of the rope.
Owner:ZHUHAI PANSHI ELECTRONICS TECH CO LTD

Rapid breeding method of koelreuteria paniculata

The invention discloses a rapid breeding method of koelreuteria paniculata, and relates to the technical field of seedling culture of koelreuteria paniculata. The rapid breeding method is characterized by comprising the following steps: a, plant inoculation culture: preparing a tender stem with an axillary bud or a semi-lignified stem, disinfecting, cutting into stem segments of 1.0-1.5 centimeters, and inoculating onto a culture medium, wherein the temperature of a culture room is 23-25 DEG C; proliferation culture: when the axillary bud emerges to 1.0-2.0 centimeters in height after inoculation, cutting off a cluster bud block, inoculating into a differential medium to perform proliferation culture; root induction culture: taking a single robust test tube seedling which is 1-3 centimeters in height and preparing a 1/3 MS culture medium serving as a basic culture medium; acclimatization and transplanting: after a developed root system is formed on the test tube seedling, opening a bottle to perform acclimatization for 5-8 days, taking the seedling out, cleaning, disinfecting and transplanting into a culture medium. By using the method disclosed by the invention, excellent properties of koelreuteria paniculata and the consistence of nursery stocks are kept, and dependence on a large number of natural factors is lowered; the method has the advantage of rapid and mass breeding of high-quality varieties; the breeding coefficient is over three times that of the conventional seedling culture.
Owner:郎溪县双明生态农业有限公司

ZigBee network based intelligent substation sensor online detection networking method

The invention relates to a ZigBee network based intelligent substation sensor online detection networking method. According to the method, a ZigBee star-shaped networking topology structure is adopted in a station layer of the substation equipment; in the station layer, a coordinator node in the ZigBee application layer performs initializing, starting and establishing of the network; a dual-star-shaped networking topology structure is adopted in a spacer layer and a process layer, and the spacer layer and the process layer are established into a layer of new sub network; in the newly-established sub network, the coordinator node receives a control instruction from an upper computer end, and sends the control instruction to each sensor detection node through the ZigBee network; the detection node collects working state data information of equipment according to the instruction and uploads the data to ZigBee coordinators; and the sensors and the coordinators are configured in substation equipment clusters in a distributed manner and connected with TCP/IP Ethernet servers through wire/wireless communication modes. The significant impacts caused by manual detection difficulties, and natural factors such as equipment aging, weather and the like are greatly reduced by the ZigBee network based intelligent substation sensor online detection networking method, so that the method is quite brighter in the application prospects.
Owner:STATE GRID CORP OF CHINA +2

Method for achieving anti-snaking broadband energy absorption mechanism and optimal configuration method for parameters of bogie

ActiveCN105109510AOvercome constraintsMeet the technical requirements of cross-line applicationBogiesBogieEnergy absorption
The invention discloses a method for achieving an anti-snaking broadband energy absorption mechanism and an optimal configuration method for the parameters of a bogie. According to the method and the optimal configuration method, a dynamic design method is mainly applied, and lead-lag correction of unstable snaking oscillation phenomena of the bogie is achieved in a self-adaptive control manner; an anti-snaking redundant design form of an ICE3 prototype is borrowed, the anti-snaking broadband energy absorption mechanism is achieved through combination application of novel anti-snaking vibration reducers, and the method and the optimal configuration method are simple and applicable; and an anti-snaking soft constraint or anti-blocking technology is borrowed, the hydraulic rigidity is properly reduced, and rheology nonlinear influences are avoided. By means of the method and the optimal configuration method, the design defects of the ICE3 bogie prototype are overcome, a high-speed-rail passenger-dedicated development manner is gradually changed, and then the rate of return on investment is increased; in addition, the adaptability and the friendliness to track lines are improved, and the railway construction investment cost can be saved; and meanwhile the robustness of perturbation or disturbance of natural factors is improved, and particularly when the method and the optimal configuration method are used for mountain lines, and the structural technical service cost can be obviously reduced.
Owner:DALIAN JIAOTONG UNIVERSITY

Artificial culture method of halophila oralis seedlings for marine ecological restoration

ActiveCN104351034AOvercome growthOvercoming the influence of natural factors on reproductionAnimal corpse fertilisersClimate change adaptationNutrient solutionPlant growth
The invention relates to an artificial culture method of halophila oralis seedlings for marine ecological restoration, and belongs to the technical field of artificial culture of marine plant seedlings. According to the method, halophila oralis is cultured indoors to quickly obtain high-quality seedlings according to the reproduction characteristics that stem nodes on creeping stems of the halophila oralis can meristem and bifurcate and the creeping stems can horizontally extend and grow; the method specifically comprises the step of placing pruned creeping stem sections in seawater in which nutrient solution and a plant growth promotion hormone are added to culture for 25-30 days until the creeping stems extend horizontally to newly increase 2-3 stem nodes. The method has the characteristics of simple required equipment, convenience in material source, low production cost, easiness in mastering of the technology, horizontal extension of the creeping stems and high growth speed of buds on the stem nodes, the defect that the growth and the reproduction of the halophila oralis are affected by natural factors can be overcome, a large number of halophila oralis seedlings can be quickly obtained, the growth speed is high after the seedlings are transplanted to a sea area, and the protection and restoration effects on the halophila oralis are obvious.
Owner:GUANGDONG OCEAN UNIVERSITY

System and method for prebalancing electrical properties to diagnose disease

A system and method for diagnosing the possibility of disease by making electrical measurements in one of a first body part and a second substantially similar body part are described. The present invention balances out differences between homologous body parts that are due to natural factors unrelated to disease, such as differences in size or symmetry between left and right breasts. Once data are prebalanced, statistical analyses can be performed on the data to diagnose disease. The system includes a normalizing module for obtaining a normalizing factors database from a screening population group to account for differences in spatial separation of impedance measurements. Once a set of normalizing factors is obtained, a prebalancing factor can be obtained that can further be used to adjust raw electrical measurements. Normalizing factors are applied to a smaller subset of measurements that are likely to better represent the body part as a whole. This set of measurements is reduced further by eliminating a set of the measurements that can be biased by a presence of a disease in a body part. The remaining measurements for each body part are then averaged to obtain an overall measure of a body part electrical property. The quotient between these measures is then used to adjust raw measurements. The adjusted measurements remove the imbalance that might exist due to natural differences between body parts. Adjusted measurements are then used as an input to other methods to obtain more accurate disease diagnostics.
Owner:Z TECH CANADA

Solar energy light following method and system

The invention provides a solar energy light following method and system. The solar energy light following method comprises the following steps that (1) communication is carried out through a satellite module and a satellite time service positioning system to obtain position coordinates of a solar panel and the time of the current time zone; (2) position coordinate information and the time of the current time zone are transmitted to a microprocessor, and the elevation angle and the azimuth angle of the sun relative to the solar panel at present are calculated through a solar elevation angle and azimuth angle algorithm after the microprocessor reads data; (3) the microprocessor judges whether the elevation angle is larger than zero degree or not, if the elevation angle is no larger than zero degree, any driving signal is not sent, if the elevation angle is larger than zero degree, the microprocessor updates the elevation angle and the azimuth angle of the sun periodically, sends information of the elevation angle and information of the azimuth angle of the sun to a motor driving circuit to drive a motor so as to enable the solar panel to align to the sun. The solar energy light following method and system are high in accuracy and rapid in reaction, cannot be influenced by natural factors such as the weather, and are applicable to focusing of large-sized solar panels, and high in cost performance.
Owner:SHANGHAI DIANJI UNIV

Integral prefabricated cross-laminated timber (CLT) wooden plate girder bridge based on steel side stiffening

The invention discloses an integral prefabricated cross-laminated timber (CLT) wooden plate girder bridge based on steel side stiffening, which comprises a bridge superstructure and a bridge substructure, wherein the bridge superstructure is spliced from a plurality of CLT wooden girder plates, and the upper part is provided with girder bridge spandrel girders of a girder bridge deck; each CLT wooden girder plate comprises a girder body structure and corner armor steel sides, the girder body structure is glued from at least three layers of wooden veneer sheets, and the corner armor steel sides are buckled on the upper and lower edges on the front and back ends of the girder body structure and used for stiffening the integral body; and the upper and lower edges on the front and back ends of the girder body structure are correspondingly provided with mounting notches of which the structures and dimensions correspond to those of the corner armor steel sides. The invention has the advantages of light weight, environment friendliness, simple structure, reasonable stressing and good compatibility with surrounding environment, is simple to construct, and can solve the problems of poor compatibility with surrounding environment, easy corrosion from moisture and other natural factors, on-site construction difficulty and the like in the existing bridge.
Owner:CHANGAN UNIV

Soft rock slaking test system for simulating natural environments

The invention discloses a soft rock disintegration test system for simulating natural environments. The system is provided with a box body, wherein a lighting simulator, a temperature control device, a rainfall simulator, a wind simulator, a soft rock disintegration grain size grading and metering device, a monitoring device and an air humidity and temperature device are installed inside the box body. The system integrates the five natural factors of rainfall, lighting, temperature, humidity and wind, can simulate multiple natural environments required by soft rock disintegration, can provide an indoor site for simulating the natural environments for the research of soft rock disintegration, effectively overcomes the difficulty in outdoor research, has the advantage of cheaper and more economical required equipment, and can effectively reduce the research expenditure. The system has the characteristics of simple structure and reasonable design, can simulate the soft rock disintegration under multiple climatic conditions in the natural environments, can truly and comprehensively reflect the overall soft rock disintegration process, and can quantitatively obtain information in every respect by screening the conditions for reflecting disintegration. The system has the advantages of high practicality and favorable use effects, and is convenient to be popularized and applied.
Owner:HUNAN UNIV

Road construction method

The invention relates to the field of municipal construction and provides a road construction method to solve a problem that a road is easy to crack under an effect of a natural factor. The road construction method comprises the following steps of S1, excavating a subgrade groove; S2, cleaning and flattening the subgrade groove; S3, back-filling a lime-soil cushion in the subgrade groove and compacting the lime-soil cushion to form a subgrade layer; S4, uniformly laying rubber asphalt on the subgrade layer; S5, laying crushed stones in the rubber asphalt and compacting the crushed stones to form a rubber asphalt and crushed stone mixed layer; and S6, pouring concrete to the rubber asphalt and crushed stone mixed layer and curing and molding the concrete to form a concrete pavement layer. By back-filling the subgrade layer in the subgrade groove first and then laying the rubber asphalt and crushed stone mixed layer and the concrete pavement layer, the road construction method is beneficial for enhancing compressive strength, tensile strength and toughness of a pavement; and therefore, the pavement is uneasy to crack when suffering stress; and the road construction method is beneficial for prolonging the service life of the pavement and is also beneficial for enhancing the safety of the pavement.
Owner:广州市诚利建设工程有限公司

Wine brewing cellar building technology

The invention relates to a wine-making bodega-building technology which comprises a brick combination body, a bodega workshop auxiliary facility, bodega workshop venting hole reconstruction, a multilayer bodega structure method, a cultivation way of bodega mud, and a bodega body microcirculation compensating system. On the base of the traditional bodega process, the technology creates the bodega-building process, develops the technical measures of brick mud clamping and building, multilayer bodega body structure, external remote assistance, bodega body internal compensation, venting hole reconstruction, bodega soil adulterating and bacteria grafting, and the like, can effectively release the harmful influence on the bodega wine production by natural factors, has obvious promotion function to achieve the purpose of quick bodega mellowing, easy maintenance, aging resistance, interference resistance and stable wine quality, develops a new way of operability of the bodega wine flavor, accords with the principles of physical science and bodega wine process, develops and creates the bodega-building process, is suitable for bodega wine companies with different processes and flavors in different areas, and plays a positive role in improving the product quality and increasing the economic benefit.
Owner:山东省古窖藏酒与酒文化研究发展中心 +1
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