38results about How to "Change the passive situation" patented technology

The invention relates to a method for processing a metal pipe, in particular to a bulging method for a titanium T-shaped pipe. The method comprises the following steps of: blanking and preparing a copper alloy coating layer with the thickness of 2-10 mum and a molybdenum sulfide coating layer with the thickness of 50-200 mum on the surface of a blank, wherein the unit bulging force C of the pipe in the hydraulic molding is equal to 1.35-1.6; bulging many times, annealing, machining and carrying out surface treatment and then obtaining a product. The invention adopts a composite lubricating agent, reduces the friction between the pipe blank and a die during bulging, solves the molding problem of a high-quality thin wall titanium pipe for warship and aviation industries, protects the die and prolongs the service life of the die, and allows industrial bulk production of the high-quality thin wall titanium T-shaped pipe for industries, such as warships, aviation, and the like, to be realized. The quality of the product reaches the advanced level of international congeneric products, which changes the passive situation that the product relies on foreign import for a long time.

In order to achieve the information coordination and the relative vitrification of calling information of a calling party and a response party in speech communication, enable any user to have a right to correspondingly set the speech communication beforehand by the content of the calling information according to the personal fancy and requirement, take people as a basis, enable a user to participate in the communication process in a limited way and change the situation that the user only can act as driven receiving in the prior communication mode, the invention discloses methods and a system thereof for managing speech calling information, comprising the following technical scheme: a speech communication method of a user information server; a method for establishing calling; a method for customizing the information of a called user; a method for customizing the information of a calling user; a method for setting different calling information according to different called users; a method for separating a communication number and user information; a calling method of speech terminal based on user ID; a method for updating a user information server at real time; and a system for managing the speech calling information.

The invention relates to a non-pillar deep-hole backing-type mining method. The method is suitable for that: the digging height is between 10 and 50 m; the length of a stope is between 40 and 80 m; the width of the stope is between 7 and 9 m; the dip angle of an ore body is between 68 and 90 degrees; the height of a bottom ore removal chamber is between 2.5 and 3.5 m; the height of an upper part rock drilling chamber is between 3.4 and 3.8 m; meanwhile, an explosive charge structure, an explosion initiating sequence, stope side lacing and top plate control are determined according to the conditions of the stope, and a remote-control scraper and a remote-control crushing trolley are jointly used to treat large ore materials for ore removal. The mining method has the advantages of small mining-cutting engineering quantity, simple mining-cutting process, high rock drilling efficiency, good blasting effect, safe and efficient ore removal process, can effectively improve the wide-spacing stoping safety for underground metal mines nationwide, can upgrade the mining technical level for the underground metal mines in China, can promote the development of nationwide underground metal mine mining technology, and can reduce the dilution rate and loss rate of nationwide underground metal mine spacing stoping stopes, so as to promote the maximal recycling of metal resources.

The present invention provides a road underground hidden danger detection method and system based on radar images and artificial intelligence. The road underground hidden danger detection method includes: step S1, screening B-SCAN sample pictures containing underground hidden danger targets from a three-dimensional ground penetrating radar database ; Step S2, carry out target detection labeling to each target of the sample picture, and form the underground hidden danger target detection data set after performing data enhancement processing; Step S3, train two R-CNN target detection neural networks respectively, obtain two , empty, pipeline and manhole object detection capabilities of the target detection model; step S4, read the three-dimensional ground-penetrating radar to be detected in each channel B-SCAN picture, with two target detection models for multi-GPU parallel target detection, generate Two sets of reasoning results; step S5, through model integration, the two sets of reasoning results are fused and output. The invention has strong anti-interference ability, abundant target information and high accuracy.

The present invention provides the principle of hydraulic energy dissipation by combining force potential energy, gravity potential energy and water flow cutting potential energy for silt beach dam engineering, and builds a hydraulic horizontal weir physical and chemical composite with large cross-section full-elevation water discharge and diversion flood control performance. The method is to raise the outer edge of step-shaped discharge sills such as stones with single-surface heightening by 1:0.15 of its own width, shrink by 1 / 4 of its own width, and lie on its side on the ground bed (including horizontal weir nipples). Lun cloth apron and shark's fin barbed wire wrapped stone or cement pre-manufactured between the apron) and the sand weir (including interlayer nylon cloth). Rolling dam equipment consists of wooden pole triangle brake frame, wooden pole parallel brake pads and plastic sheet parallel series apron. The Shunshui weir is a sandy soil structure, and the flood diversion outlet is a physical and chemical combination structure of a sill apron. The invention integrates farmland water conservancy, water and soil conservation, soil improvement engineering and sustainable development and utilization of dynamic water resources, with low cost and high economic, ecological and social benefits.

The invention discloses a mechanical stopping process for hard-to-mine ore bodies. The mechanical stopping process comprises the following steps: firstly, designing a rock drilling ore removal underground chamber with the height of 2.8 m-3 m and the width of 3 m at the bottom of a stope; then upwardly drilling blast holes with the diameter of 51 mm in the rock drilling ore removal underground chamber to the boundary of the stope, with the minimum resistance line of 1.3 m, the hole mouth distance of 0.5 m-0.9 m and the hole bottom distance of 1.4 m; after drilling all blast holes, performing fractionated powder-loading of all rows of deep holes in the rock drilling ore removal underground chamber by adopting a small-sized powder-loading trolley, as well as fractionated backing ore caving. By the adoption of the mechanical stopping process for hard-to-mine ore bodies, the stope preparation requirement of the whole sill pillar stope can be satisfied through one-step excavation, so that the stope preparation efficiency is improved; after excavation of drilling laneways, a set of novel efficient rock drilling equipment is adopted to replace hand drilling excavation, and all blast holes are constructed in one step, so that the drilling efficiency is improved; the backing lateral ore caving is adopted, and a remote-control carry scraper and a remote-control crushing trolley are used together for ore removal, the safety and the production efficiency are greatly improved, and the production capacity of the stope can reach more than 150 t / d.

The invention relates to the field of electric power systems, in particular to a method for control over power grid time-space characteristics through coordination of alternating currents and direct currents. According to the method, time and space characteristics of a power grid are taken into consideration, direct current modulator parameters are optimized by means of a particle swarm algorithm according to the disturbance amplitude of a power grid monitoring data recognition system, direct current transmitting power is adjusted in an self-adaptive mode, therefore, coordination control over a multi-loop alternating and direct current system is realized, and the level of transient stability is improved. The method for control over the power grid time-space characteristics through the coordination of the alternating currents and the direct currents reasonably utilizes resources in the power grid, is an effective way of improving the safety and economic benefit of the power grid, and has great significance in guaranteeing the economic efficiency, the safety and the reliability of normal operation of the power grid.