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390results about How to "Release stress" patented technology

Method and system for analyzing fault root cause

The invention provides a method and a system for analyzing a fault root cause. The method comprises the following steps that: according to the time attribute of each piece of data in a dataset, carrying out sorting, and segmenting the dataset according to a preset time window to obtain multiple groups of sub-datasets; according to an Apriori algorithm, obtaining a frequent item set and an association rule in the dataset, wherein the frequent item set contains a certain quantity of data with a strong association relationship; and according to the time attributes of the data in the frequent itemset, carrying out sorting, matching the data which ranks higher with adjoint warning cause data pre-stored in a warning cause database in sequence, if the data which ranks higher is successfully matched with the adjoint warning cause data pre-stored in the warning cause database, removing the data which ranks higher from the dataset, and continuously carrying out comparison from a next data itemuntil the data which fails to be matched and ranks higher is taken as the root cause of the data of which the time sequence ranks at the bottom in the frequent item set. The method is suitable for thefull-dimension monitoring scene of an IT (Information Technology) system, the pressure of operation and maintenance personnel is released, and the quality requirements of the operation and maintenance personnel are lowered.
Owner:BEIJING TIANYUAN INNOVATION TECH CO LTD

Machining method of perpendicularly intersected hole system of speed reducer body

The invention discloses a machining method of a perpendicularly intersected hole system of a speed reducer body. Holes A-B on the vertical axis are machined by a vertical numerical control machining center so as to meet the concentric requirement of the holes on the axis, and simultaneously, a section of horizontal hole is bored based on the vertical axis; the horizontal hole is long in length, only a section of horizontal hole is bored to be used as an aligning basis in order to ensure the machining precision so as to avoid a mark error, so that the section of horizontal hole is used as an aligning basis for machining a horizontal hole V. In the same way, a hole V on the horizontal axis is machined by a high-precision numerical control boring and milling machine by not using a mark as an aligning basis but on the aligning basis on which the vertical holes are machined, and the aligning precision is high; and meanwhile, the space laser detection technology and the numerical control machining technology are matched to ensure the form-position precision of the perpendicularly intersected hole system of the body. The fine surface finishing technology and the numerical control simulation technology of a high-precision numerical control machine are applied to select reasonable cutting amount to meet the low roughness requirement of the surface of the perpendicularly intersected hole system of the body. Through the machining method, the amount of adjustment of assembly is greatly reduced, and the assembly precision is improved.
Owner:CITIC HEAVY INDUSTRIES CO LTD +1

Tungsten target diffusion welding method and target assembly

The invention relates to the technical field of semiconductor targets, in particular to a tungsten target diffusion welding method and a target assembly. The technical problems that a crack is prone to occurring when a tungsten target is directly welded to a copper alloy backing plate, and diffusion welding is not prone to being conducted between the tungsten target and an aluminum intermediate layer as well as between the aluminum intermediate layer and the copper alloy existing in the prior art are solved. The tungsten target diffusion welding method comprises the steps that firstly a weld face of the tungsten target is plated with a layer of titanium metal film to form a titanium-plated tungsten target, each of an upper weld face and a lower weld face of the aluminum intermediate layeris plated with a layer of titanium metal film to form a titanium-plated aluminum intermediate layer, and a weld face of the copper alloy backing plate is plated with a layer of titanium metal film toform a titanium-plated copper alloy backing plate; and then the titanium-plated tungsten target, the titanium-plated aluminum intermediate layer and the titanium-plated copper alloy backing plate areassembled to form an assembly body, wherein the titanium-plated aluminum intermediate layer is located between the titanium-plated tungsten target and the titanium-plated copper alloy backing plate. According to the technical scheme provided by the tungsten target diffusion welding method, occurring of the crack can be avoided, and diffusion welding is easy.
Owner:KONFOONG MATERIALS INTERNATIONAL CO LTD

Supporting structure for composite anchor mesh steel bar support of deep well high-stress soft rock roadway and construction method thereof

The invention provides a supporting structure for a composite anchor mesh steel bar support of a deep well high-stress soft rock roadway and a construction method thereof. Firstly, anchor rods and anchor ropes are stroke into the interior of surrounding rock, and the set length is exposed; then, steel bar meshes and polyester fiber meshes are laid and hung through the outward-exposing portion of the anchor rods and the anchor ropes, the steel bar meshes are closely attached to the surrounding rock to be laid, and the polyester fiber meshes are closely attached to the steel bar meshes to be laid; a steel bar mesh shell support is erected; the anchor rods and the anchor ropes pass through the steel bar meshes, the polyester fiber meshes and the steel bar mesh shell support in sequence and are fixed on the steel bar mesh shell support through trays and nuts; a first concrete shotcrete layer is poured to close the whole supporting structure, and initial supporting is finished; and finally, a second concrete shotcrete layer is poured, and second supporting is finished. Through initial supporting, the whole structure and the surrounding rock deforms jointly, the yielding effect is given play, and surrounding rock pressure is released, and then second supporting is conducted. Meanwhile, the flexibility and pressure releasing effects of the polyester fiber meshes are utilized, so that the surrounding rock pressure is evenly distributed in the whole supporting system.
Owner:ANHUI UNIV OF SCI & TECH

New energy battery explosion-proof valve

The invention discloses a new energy battery explosion-proof valve, which comprises a main valve body, a seal ring, a piece of explosion-proof membrane paper, a membrane paper protection plate and a protective cover, wherein a membrane paper mounting platform is arranged at one side of the main valve body; the explosion-proof membrane paper is welded on the membrane paper mounting platform in a hot melting manner; an annular bump is arranged on the outer circumference of the membrane paper mounting platform; the membrane paper protection plate is arranged in the annular bump; a protective bottom plate is arranged at the lower part of the membrane paper mounting platform; the protective bottom plate is provided with an explosion-proof pointed cone toward the explosion-proof membrane paper; the protective cover is arranged out of the protective bottom plate; the seal ring is arranged between the outer surface of the annular bump and the main valve body; the main valve body is movably connected with a battery shell through the annular bump; and the main valve body and a battery shell are sealed through the seal ring. The new energy battery explosion-proof valve has the advantages of being simple in structure, low in cost, dustproof, waterproof, explosion-proof and breathable, and can balance internal pressure and external pressure of a sealed accommodating cavity of a battery.
Owner:惠州市沃瑞科技有限公司

Display panel and display device

The present invention discloses a display panel. The display panel comprises a bending region and a non-bending region connected with the bending region, and the display panel further comprises an array substrate. The array substrate comprises: a plurality of first pixel regions which are mutually arranged in parallel in multiple lines and arranged in the bending region; a plurality of second pixel regions which are mutually arranged in parallel in multiple lines and arranged in the non-bending region; and a plurality of flexible connection regions configured to connect with adjacent first pixel regions and connect with the first pixel regions and the second pixel regions, wherein each flexible connection region is internally provided with a slot, and each slot is filled with an organic photoresist layer. According to the invention, the slots are arranged in the flexible connection regions of the bending region to form an inorganic layer slot between two adjacent lines of pixel regionsin the bending region to separate from each two lines of pixel regions, and the slots are filled with the organic photoresist layers so as to effectively relieve the stress of each inorganic layer ormetal wiring corresponding in the display panel, especially in the array substrate.
Owner:WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

Lithium-rich cathode material doped with lithium manganate at Mn site, and preparation method of lithium-rich cathode material

The invention provides a lithium-rich cathode material doped with lithium manganate at a Mn site, and a preparation method of the lithium-rich cathode material. The preparation method of the lithium-rich cathode material doped with the lithium manganate at the Mn site comprises the following steps: evenly mixing a lithium source, a manganese source, doped metal salt and a metal complexing agent, carrying out ultrasonic gas atomization on the obtained mixture, and calcining to obtain spherical lithium manganate powder; mixing the obtained spherical lithium manganate powder with a spherical cathode material, coating and calcining. The lithium-rich cathode material provided by the invention is prepared by doping the lithium manganate at the Mn site, thus effectively inhibiting oxygen evolution and solving the problem of voltage drop in a circulating process; the tap density of powder can be improved by mixing, so that the energy density of the material is further improved; due to the stepof coating, the loss of oxygen vacancies and the migration of transition metal ions are reduced; after the lithium-rich cathode material is adopted, the first time efficiency is increased, the safetyperformance of batteries is improved, and the energy density of the material is improved.
Owner:桑顿新能源科技(长沙)有限公司
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