113results about How to "Wide application conditions" patented technology

The invention relates to a method and device for estimating the queuing length of an intersection based on low-permeability vehicle track data, wherein the method comprises the following steps of S1:converting the original estimated data into a distance-time diagram, and recording the vehicle state of each track point in the distance-time diagram, wherein the vehicle state comprises a traveling state and a queuing state; S2: identifying queuing key points based on the change of the vehicle state, wherein the queuing key points comprise a queuing joining point and a queuing leaving point; S3:periodically dividing each queuing key point; and S4: estimating a queuing evanescent wave and a queuing formation wave, and obtaining a maximum queuing length. Compared with the prior art, the methodand device for estimating the queuing length of the intersection based on low-permeability vehicle track data has the advantages of wide application range and the like.

The invention belongs to the technical field of degradation of soil organic pollutants, and discloses a composite microbial preparation for degrading quinolones antibiotics and a preparation method and application. The preparation method comprises the steps of mixing quinolones antibiotics degradation bacterial liquid with energy supply bacterium bacterial liquid, magnetic medium bacterium bacterial liquid, a surfactant and a fermentation medium to obtain mixed liquid; and performing fermentation to obtain the composite microbial preparation for degrading the quinolones antibiotics. Energy supply bacteria which are adopted enable the composite microbial preparation to have high colonization and multiplication capacity in in-place edatope. The surfactant and the magnetic medium bacteria, which are adopted, enable the composite microbial preparation to have low moisture tension and antibiotics polarity. The prepared composite microbial preparation is high in activity, and high in environmental suitability. The composite microbial preparation is used for degradation of the quinolones antibiotics in soil, and is broad in scope of application and high in degradation efficiency.

The invention discloses a two-stage ejection refrigeration cycle system with an economizer, and the system provided by the invention comprises the economizer and a first expansion valve, wherein the first outlet of a generator is divided into two paths; one path is connected with a first inlet of a first ejector; the other path is connected with a first inlet of the second ejector; the gas outlet of the second ejector is connected with a condenser; the outlet of the condenser is divided into three paths, wherein the first path is connected with a first inlet of the economizer, and the second path is connected with the inlet of the first expansion valve; after the outlet of the first expansion valve and the gas outlet of the first ejector are connected into one path, the outlet of the first expansion valve is connected with a second outlet of the economizer; the third path is connected with the inlet of the solution pump; the outlet of the solution pump is connected with the first inlet of the generator; the first outlet of the economizer is successively connected with the second expansion valve, the evaporator and a second inlet of the first ejector in series; and the second outlet of the economizer is connected with the second outlet of the second ejector. According to the two-stage ejection refrigeration cycle system, the economizer and the first throttle valve are utilized to achieve higher performance coefficients and refrigerating capacity.

The invention discloses a riverbed non-dam type hydroelectric generation system, and relates to a hydroelectric generation system. The riverbed non-dam type hydroelectric generation system is used for solving the problems that an existing traditional hydropower station is high in manufacturing cost and large in work amount, a floating boat-type non-dam hydropower station can only be implemented in great rivers, the utilization rate of hydropower resources is relatively limited, and a tidal power station is high in construction cost, and cannot be utilized in a large-scale mode. The riverbed non-dam type hydroelectric generation system comprises a water turbine, a flow guiding body, a flow guiding plate, two right-angled-n-shaped frames, two bearing platforms, two power generation platforms, two generators, two increasing gear trains and two lifting mechanisms, wherein one bearing platform, one power generation platform, one generator, one increasing gear train and one lifting mechanism are installed on each right-angled-n-shaped frame, the water turbine comprises a rotary shaft and a plurality of bent blades, each power generation platform which is connected with the corresponding bearing platform is installed above the corresponding bearing platform, each generator is installed on the corresponding power generation platform, motors are connected with worm wheels respectively, and threaded rods are connected with the power generation platforms respectively. The riverbed non-dam type hydroelectric generation system is used for carrying out hydroelectric generation.

The invention provides a preparation method of a keratin heavy metal adsorbent. The preparation method comprises the following steps: step I, cleaning and smashing a keratin raw material; step II, carrying out oxidation reaction on the ready keratin raw material: taking the keratin raw material, and putting the keratin raw material in an oxidant aqueous solution to carry out oxidation reaction, wherein an oxidant is a potassium monopersulfate composite salt or a sodium monopersulfate composite salt; and step III, carrying out reduction reaction on the oxidized keratin material: taking the oxidized keratin material, putting the oxidized keratin material in an aqueous solution containing a reducing agent to carry out reaction, and drying the obtained keratin material to obtain the keratin heavy metal adsorbent, wherein the reducing agent is one of sodium sulfite, sodium metasulfite, sodium bisulfite, potassium sulfite, potassium metasulfite and potassium bisulfate. The prepared heavy metal adsorbent has certain selectivity, is high in adsorption efficiency, low in cost, simple and convenient to operate, mild in required condition and does not generate secondary pollution.

The invention relates to a cable-stayed bridge forming cable force optimization method. The method is a cable-stayed bridge forming cable force optimization method based on a target tracking-iterativeupdating algorithm. According to the method, the midspan deflection of the cable-stayed bridge in the bridging state serves as a tracking target, a cable-stayed bridge model is established through anANSYS parameterized programming language, the bridging cable force of the cable-stayed bridge is optimized through an analysis method of tracking the midspan deflection and iteratively updating a real constant array, and the bridging state design requirement of the cable-stayed bridge is met. The method has the advantages that the requirements of design specifications of the cable-stayed bridge are more visually and specifically reflected, initial cable force is applied in a mode of endowing a unit real constant, bridging cable force is solved through a method of iteratively updating a cableforce real constant array of the inhaul cable, the program design is simple, complex correction calculation is not needed, and the calculation efficiency is improved. Moreover, the mutual influence between the cable forces of the stay cables of the cable-stayed bridge is considered, and the precision of optimizing the cable force of the finished bridge is improved by adopting a method of adjustingthe cables of the whole bridge.

The invention discloses a screen printing plate which comprises a plurality of warps and a plurality of wefts. The warps and the wefts are woven in an up-down staggered manner to form a plurality of openings, and the surfaces of the warps and/or the surfaces of the wefts are uneven. The screen printing plate has the advantages that screen printing application conditions can be expanded, and accordingly screen printing requirements on paste with low viscosity can be met.

The invention discloses an ultrasonic detecting system and method. The ultrasonic detecting system is used for detecting lithium batteries and comprises a detecting portion, a transmitting portion, a sorting mechanism, wherein the detecting portion is used for detecting swelling of the lithium batteries, the transmitting portion is used for bearing and moving the lithium batteries, the transmitting portion is further connected with the detecting portion, and the sorting mechanism is arranged above the transmitting portion, connected with the detecting portion and used for sorting the lithium batteries with the swelling. The ultrasonic detecting system has the advantages and the beneficial effects of achieving a non-contact type ultrasonic detecting effect and having high flexibility, strong penetrating power, good directivity, quick detecting speed, low cost, relatively simple equipment and no harm to a human body. The ultrasonic detecting system also has the advantages of avoiding coupling agent, keeping longer distance with an object to be detected, having a simple and convenient detection process, improving the automation degree of lithium battery detection, greatly saving labor consumption of a battery swelling detecting process, reducing production cost, being beneficial to solving the problem that the efficiency and the accuracy are not high in manual product detection and greatly improving the production efficiency.

The invention provides transparent photocuring ink for 3D ink-jetting printing and a preparation method thereof. The transparent photocuring ink for 3D ink-jetting printing comprises acrylate monomers, sulfhydryl compounds, surfactants, photoinitiators and assistants. The transparent photocuring ink for 3D ink-jetting printing has the advantage of capability of inhibiting proneness to yellowing, muddiness and obscurity of printed products.

The invention discloses a mobile station-type outdoor power distribution cabinet. The mobile station-type outdoor power distribution cabinet comprises a steel shell and a support steel plate, whereinan acrylic acid waterproof coating layer is arranged on an outer surface of the steel shell, a Y-shaped support is arranged on the steel shell, solar cell panels are arranged at two top ends of the Y-shaped support, a first steel rack is arranged in the steel shell, a circuit breaker is arranged on a front end surface of the first steel rack, a second steel rack is arranged below the circuit breaker, a contactor is arranged on a front end surface of the second steel rack, a third steel rack is arranged below the contactor, a cooling fan is arranged below the third steel rack, a storage batteryand an AM2120 temperature/humidity sensor are arranged at an upper end of the steel shell, the steel shell is connected with a cabinet door via a chain, a liquid crystal display is arranged on an inner wall of the cabinet door, and a control button plate is arranged below the liquid crystal display. The mobile station-type outdoor power distribution cabinet can move, can be used for performing power distribution for a certain place at any time and at any place and is high in comprehensiveness and wide in application range.

The invention discloses a prediction and early warning method and system for an overhead transmission line galloping risk. The system can comprise a data acquisition unit, a training sample screeningunit, a prediction model optimization unit, a galloping risk prediction unit and a galloping risk early warning unit. The method includes: on the basis of collecting ontology data and meteorological data of a power transmission line, firstly inputting original sample data into a training sample screening unit, and selecting a historical data sample set similar to a to-be-predicted historical datasample set based on a weighted grey correlation projection method; Secondly, training a dancing risk prediction model through the similar historical data sample set, and selecting the optimal decisiontree number of the model and the feature number of the split feature set to complete the establishment of the dancing risk prediction model; Then, outputting a galloping risk prediction level at a galloping risk prediction unit; And finally, based on the galloping risk prediction level, releasing corresponding galloping risk early warning information in a galloping risk early warning unit.

The invention discloses an asymmetrical vortex control device for an aircraft forebody. The device comprises air blowing ports symmetrically arranged at two sides of a leeward area of the aircraft forebody and an oscillating jet device; the oscillating jet device comprises a wall-attached oscillating jet element, a main jet source and a control device; the wall-attached oscillating jet element comprises a jet inlet, a nozzle, a splitter plate, two jet direction deflection control ports and two jet outlets; the main jet source is connected with the jet inlet of the wall-attached oscillating jet element; the air blowing ports are connected with the two jet outlets of the wall-attached oscillating jet element respectively; and the two jet direction deflection control ports of the wall-attached oscillating jet element are connected with the control device respectively. The invention also discloses an asymmetrical vortex control method for the aircraft forebody. The asymmetrical vortex of the aircraft forebody is disturbed by oscillating jet, so that the strength or the position of the asymmetrical vortex of the aircraft forebody is changed. The device has the advantages of simple structure, good instantaneity, no influence on the shape of an aircraft and the like.

The invention discloses a wave-equation first-arrival travel-time chromatography method taking a reverse-time migration algorithm as an engine. The method comprises the following steps of inputting a seismic wavelet, observing a system, carrying out depth-domain initial speed field and observing a first-arrival travel time of a seismic record and a minimum value of a travel-time residual error norm; using an acoustic wave equation forward modeling method to calculate a forward-modeling simulated seismic record in an initial speed field and solving a wave equation; calculating primary wave arriving time of the simulated seismic record; calculating a primary wave travel time residual and determining whether a norm of the travel time residual is less than a preset precision requirement; calculating a wave equation travel time sensitivity matrix; solving a tomographic linear equation group; updating a speed model; and outputting the speed model obtained through inversion. The method has advantages that the acoustic wave equation is used so that a high inversion resolution is possessed; the method is suitable for describing a forward scattering phenomenon of a wave field; and a wave equation chromatography is used in a primary wave travel time tomography so that a high-precision background speed inversion method is acquired and a large-scale macroscopic background speed field can be inverted.

The invention provides a gob-side entry retaining system for cementing gangue in a gob-side goaf into a wall. A first hydraulic jack is hinged on a hydraulic support tail beam at the end of a workingface; one end, close to the goaf, of the first hydraulic jack is connected with a first gangue baffle; a second hydraulic jack is hinged to the side, close to the goaf, of an entry retaining support;one end, close to the goaf, of the second hydraulic jack is connected with a second gangue baffle; the second gangue baffle is positioned behind the first gangue baffle; the second gangue baffle abutsagainst the first gangue baffle and encloses an entry retaining operation area; and a grouting pump station injects a high-water filling material into the entry retaining operation area through a grouting pipe. According to the gob-side entry retaining system for cementing the gangue in the gob-side goaf into the wall, collapsed gangue in the goaf can be fully utilized, the working face can be immediately followed, the entry retaining by cementing into the wall is finished, the goaf and a gob-side roadway can be isolated all the time, the cost is low, and the adaptability is high. The invention also provides a gob-side entry retaining method for cementing the gangue in the gob-side goaf into the wall.

The invention provides a Bacillus catonella strain DM4-2 with inhibiting effect on plant scab as well as a fungicide and an application thereof, the strain DM4-2 is preserved in China Center for Type Culture Collection on January 7, 2021, and the preservation number is CCTCC M 2021026. According to the invention, an antagonism experiment proves that the strain has a relatively strong inhibition effect on Streptomyces scabies. The invention provides an application of the fermentation liquor of the strain in preventing and treating potato scab. Experiments prove that the strain can significantly improve various physiological indexes such as root activity, antioxidant enzyme system and the like of potato plants, and also significantly improve the activity of soil urease, thereby the nitrogen supply capacity of soil is improved. According to the present invention, the Bacillus catonella DM4-2 has strong inhibition effect on S.scabies, which can be prepared into the biocontrol agent for preventing and treating potato scab, and has important market application prospects.

The catalyst system for catalyzing propylene dimerization to prepare C6 olefin consists of either di(salicylal imine) nickel(II) and organic aluminium compound, or di(salicylal imine) nickel(II), organic aluminium compound and organic phsphine. The catalyst system of di(salicylal imine) nickel(II) and organic aluminium compound has catalytic activity up to 60000-120000 mol C3--/mol Ni. hr, dimerization selectivity of 70-90 %, methyl amylene content in dimerized product up to 80 %. The catalyst system of di(salicylal imine) nickel(II), organic aluminium compound and organic phsphine has catalytic activity up to 240000 mol C3-- /mol Ni. hr, C6 olefin selectivity up to 90 % and 2, 3-dimethyl butene selectivity up to 64 %.