62results about How to "Scientific guidance" patented technology

The invention provides a comprehensive evaluation method of a development level of an active power distribution network, which comprises the steps such as that an IDEF0 model of the active power distribution network is established; a comprehensive evaluation index system of the active power distribution network is established; comprehensive evaluation is carried out; and the development of the target power distribution network is analyzed, and improvement methods are put forward. The evaluation of the development level of the active power distribution network provided by the invention is beneficial in that the method can reflect indexes of overall performance, construction progress and a technical supporting level of the active power distribution network, and the established comprehensive evaluation index system of the active power distribution network and the formulated comprehensive evaluation implementation method are applicable to actual situations of power distribution network construction and management in our country, can reflect the overall development level of the active power distribution network, make for excavating weak links in the power distribution network and can provide scientific and effective guidance for comprehensive improvement of the development level of the power distribution network.

The invention relates to a method for honeybee pollination to watermelon in a facility. The method comprises the followings: the propagation time of colonies for pollination is 40 to 50 days before moving to the facility; the breed is western honey bee; 2 to 3 piece of honeycombs and about 5000 bees are included in one beehive; an insect prevention screen is mounted; the application of various farm chemicals inside the facility is prevented, and systemic insecticide is prevented from being applied; the temperature is controlled to be 22 to 28 DEG C, and the relative humidity level is 50 to 80 percent; during early flowering season of watermelon, colonies for pollination are put into the facility; the beehive is placed in the center of the facility, which is 0.5 to 1 meter far from the ground, and a sunshield device is arranged above the beehive; a hive entrance faces to the south or the north; one box of pollination honeybee is arranged inside a 600 to 700.2 meter shed; the bee colonies is in standing for 15 to 30 minutes after moving into the facility, the hive entrance is opened slowly; the pollination time is 6 to 10 days; and after pollination and the honeybees going back to the honeycomb, the hive entrance is closed, and the bee colonies are evacuated. The invention provides standard specification for pollination to watermelon in the facility so as to guide planting personnel.

The invention provides a supplier management model system comprising the following steps of: (1) firstly, carrying out competency assessment on a supplier, and then grading and ranking competency conditions by the system; (2) assessing performances of the supplier according to estimated results of the competency assessment of the supplier, wherein the results comprise assessment grade, cost, manufacture, installation and debugging and an operation and maintenance part; and (3) classifying the supplier according to a performance assessment result of the supplier, so as to realize the management of a supplier relation. According to the invention, by adopting an advanced management analysis model and a scientific mathematic analysis method, a specific analysis and management process on the supplier can be realized, so that the accuracy on analyzing and assessing the supplier is improved. The supplier management model system can be widely applied to various supply chain management systems.

The embodiment of the invention provides an agricultural knowledge intelligent question-answering method and system and electronic equipment. The agricultural knowledge intelligent question-answeringmethod comprises the steps: obtaining a user question, and extracting at least one keyword in the user question; inputting the keywords into an agricultural technology knowledge graph model, and obtaining an output result corresponding to the user question and output by the agricultural technology knowledge graph model, wherein the output result at least comprises question answers; and obtaining the agricultural technology knowledge graph model based on agricultural technology knowledge graph training. The agricultural knowledge intelligent question-answering system comprises a data receivingunit and a data processing unit and is used for executing the agricultural knowledge intelligent question-answering method. The agricultural knowledge intelligent question-answering system and methodcan establish an agricultural technology knowledge graph through deep learning and analysis of massive question and answer data, can establish an agricultural technology knowledge graph model based onthe agricultural technology knowledge graph, can perform keyword extraction on question description input by a user, can realize the functions of intelligently identifying questions and generating solutions, and can provide a convenient, scientific and efficient guidance mode for agricultural production.

The invention discloses a method for carrying out piecewise fitting on the probability distribution of regional lightning current amplitudes based on SPSS (statistic package for social science), which comprises the following steps: S1, recording lightning location data of each lightning in a region, wherein the lightning location data comprises specific lightning sites and lightning current amplitudes I; S2, carrying out statistics on the lightning location data through Excel software so as to obtain a cumulative probability P (>I) of different lightning current amplitudes; S3, screening the lightning location data: only taking negative-polarity lightning currents with a lightning current amplitude of 0-200 kA into consideration; and S4, dividing the lightning current amplitudes into three intervals, namely, (0, 13], (13, 45] and (45, 200], and taking set values with a confidence probability of 95% to carry out fitting. According to the invention, the distribution rule of lightning current amplitudes of a region can be reflected more truly, and more accurate basic data can be provided for calculation of the lightning trip-out rate of lines, so that the lightning protection design and operation maintenance of electric transmission lines can be instructed more scientifically, thereby effectively reducing the lightning trip-out risks of lines, and generating obvious economic benefits and social benefits.

The invention belongs to the technical field of high-voltage transmission line natural disaster prediction, and particularly relates to a high-voltage overhead transmission line typhoon disaster prediction method based on a classification decision tree. In order to overcome the defect that a traditional typhoon disaster prediction method is not high in accuracy is overcome, the invention adopts the following technical scheme: the prediction method comprises the following steps: S1. selecting a typhoon disaster influence factor of the high-voltage overhead transmission line; S2, constructing ahistorical typhoon disaster fault point influence factor database of high-voltage overhead transmission line; s3, performing typhoon disaster prediction model training by adopting a classification decision tree; and S4, performing typhoon disaster prediction by adopting a typhoon disaster prediction model and combining the target high-voltage overhead transmission line and typhoon prediction data.The method has the advantages that the influence of typhoon disasters on the high-voltage overhead transmission line can be accurately predicted, and therefore disaster prevention and reduction workcan be scientifically guided.

The invention discloses a self-adaptive gait planning method, system and device for a hexapod robot and a medium. The method comprises the steps that a simulation model of the hexapod robot is built; establishing a gait generator according to the motion characteristics of the hexapod robot; the simulation model and the gait generator are fused, and a reinforcement learning motion control framework is constructed and obtained; training the reinforcement learning motion control framework to obtain parameters of a control network, so that the framework can control a simulation model of the hexapod robot to move in a simulation scene of an unstructured terrain; and integrating the control network obtained after training into a gait control framework of the hexapod robot for controlling the movement of the hexapod robot. The control framework based on reinforcement learning is used for learning the optimal strategy network to control the input of the gait generator, the problems that manual setting is needed and parameters are not easy to change are avoided, and the method can better adapt to the change of topographic conditions. The method can be widely applied to the field of robot control.

The invention provides a device and application as well as a coal underground gasification leakproofness evaluation system and method. The device comprises an experiment module; the experiment module is provided with an experiment cavity; the experiment cavity comprises an experiment cavity end cover and an experiment cavity barrel body which are detachably connected; the experiment cavity barrel body is composed of a double-layer cylinder body and a barrel bottom; the double-layer cylinder body comprises an inner cylinder and an outer cylinder a cavity is formed between the outer cylinder and the inner cylinder; a confining pressure applying component is arranged in the cavity and is connected with a confining pressure pipeline; a pore pressure injection hole is formed in the cylinder wall of the inner cylinder and is connected with a pore pressure pipeline; an experiment fluid injection channel and an experiment fluid output channel are arranged on the experiment cavity end cover and / or the barrel bottom of the experiment cavity barrel body; and the experiment fluid injection channel and the experiment fluid output channel both communicate with the interior of the inner cylinder of the experiment cavity. The device can simulate real occurrence conditions of coal, and specifically can simulate confining pressure and pore pressure of a deep coal seam. The device is matched with other equipment to realize coal underground gasification leakproofness evaluation considering real occurrence conditions of a coal seam.

The invention discloses an anchoring part length design method based on displacement difference / gradient in underground engineering. The method comprises the steps that surrounding rock parameters ofsurrounding rock at the underground engineering position are obtained; the type of the anchoring part and the diameter and prestress of the anchoring part are selected; a three-dimensional model of the underground engineering is established; numerical simulation software is adopted to simulate underground engineering excavation to obtain displacement of a certain point of any surrounding rock depth in the same radial direction and displacement of a certain point of rock around a hole under any surrounding rock depth after different active supporting forces are applied; a displacement difference / displacement gradient is calculated at any surrounding rock depth; a displacement difference or displacement gradient change curve of rocks around the hole under the same active supporting force isdrawn; the surrounding rock depth with the displacement difference / displacement gradient smaller than and infinitely close to the limit elongation / limit elongation of the anchoring part in each displacement difference / displacement gradient change curve is selected as the length of the anchoring part; and in all the anchoring part lengths, the anchoring part length meeting the minimum cost principle is selected as the design length of the anchoring part.