161results about How to "Solve the problem of failure" patented technology

The invention relates to an active vibration reduction boring rod based on an electromagnetic damper, and belongs to the field of machining. The active vibration reduction boring rod based on the electromagnetic damper solves that problem that an existing active vibration reduction boring rod based on a damper is prone to failure, complex in structure and large in manufacturing difficulty. The active vibration reduction boring rod based on the electromagnetic damper comprises a rod body, the electromagnetic damper, a three-axis acceleration sensor and a control system, wherein a tool bit is arranged at the front end of the rod body, and the tool bit is used for clamping a blade; the electromagnetic damper is arranged inside the rod body. When the vibration reduction boring rod is used forboring, the three-axis acceleration sensor is used for measuring acceleration data of the rod body and sending the acceleration data to the control system, and the control system is used for adjustingthe damping coefficient of the electromagnetic damper until the acceleration data that the control system receives reaches the minimum. The active vibration reduction boring rod based on the electromagnetic damper is suitable for fine boring.

The invention discloses a pre-tightening force dynamic monitoring system for a pre-stressed anchor bar strengthening project. The system comprises a deformed steel bar, a retainer plate and nuts, wherein one end of the deformed steel bar is provided with an anchorage; the anchorage is combined with soil mass to anchor the deformed steel bar in the soil mass and stretch the deformed steel bar into a pre-stressed deformed steel bar anchor bar; the outer end of the pre-stressed deformed steel bar anchor bar is provided with an exposed section; the top end of the exposed section is provided with an acceleration transducer and a vibrator; the acceleration transducer is connected with a tensile force detector of the pre-stressed deformed steel bar anchor bar; and a signal acquisition device, a signal analyzing device, a calculating procedure chip, a rechargeable battery and a control main board are built in the detector; the technical scheme overcomes the defects of high use cost, inconvenient operation and maintenance, low testing accuracy, narrow application range, failure of the anchor bar and the like existing in a conventional detection method; and the pre-tightening force dynamic monitoring system is suitable for instantaneous detection and whole-process monitoring of the tensile force of the pres-stressed deformed steel bar anchor bar in the large-area projects of instable soil mass slope, retaining wall, deep foundation pit and the like strengthened by the pres-stressed deformed steel bar anchor bar.

The invention discloses an abnormal account detection method and device. The method comprises the steps of obtaining a to-be-analyzed sample data set; obtaining associated account information and equipment information from the sample data set; obtaining identification information of equipment from the equipment information, and establishing a complex network between the identification informationof the equipment and accounts associated with the identification information according to the equipment information; carrying out community mining on the complex network according to a preset community mining algorithm, thereby obtaining a plurality of community clusters, wherein each community cluster comprises a plurality of associated account nodes; and extracting target community clusters of which number of account nodes is greater than a preset threshold from all community clusters, and determining accounts contained in the target community clusters as abnormal accounts. The problem thatin the prior art, a conventional abnormal account identification method is liable to lose efficacy is solved, and the purpose of relatively comprehensively and deeply identifying the abnormal accountsare realized.

The invention discloses rubber with a self-lubricating effect for a lining. The rubber is prepared from the following components in percentage by weight: 55 to 59 percent of natural rubber, 7 to 14 percent of butadiene rubber, 0.7 to 2 percent of refined vegetable oil oleamide, 0.7 to 2 percent of molybdenum disulfide, 0.7 to 2 percent of carbon nano tubes, 3.5 to 4.1 percent of graphite, 3.2 to 3.5 percent of zinc oxide, 1 percent of stearic acid, 1 to 1.7 percent of antioxidant 6PPD, 1 percent of antioxidant TMQ, 2 percent of microcrystalline wax, 13.1 to 13.8 percent of carbon black N 330, 1.3 to 1.4 percent of sulfur grundum and 1.0 to 1.3 percent of accelerant CZ. The rubber for the lining, disclosed by the invention, has quadruple sustained releasing functions and is suitable for the lining of a self-lubricating high-end car; the problem that common self-lubricating rubber easily fails in lubricating can be solved, and the abrasion resistance of the rubber is increased; by combining specific situations of rubber abrasion at different stages, the service life of rubber and lining products can be prolonged. Meanwhile, the invention provides a preparation method of the rubber with the self-lubricating effect for the lining.

Provided is a nanometer material modified polyethylene agricultural film in the polyethylene technical field. which comprises following components in mass ratio: 91.5-99.3 parts of polyethylene resin,0.2-1.5 parts of inorganic nanocomposite, 0.1-1 part of antioxidant, 0.1-1 part of light stabilizing agent and 0.3-5 parts of processing auxiliary agent. The provided agricultural film has excellentphysical and mechanical performance and weatherability and can be produced into high quality agricultural warmhouse booth film.

The present invention relates to a solar heat-absorbing plate core coated with selective absorption composite film and its preparation method. The basic structure composition of solar heat-absorbing plate core is characterized by that the selective absorption coating-heat-absorbing film coated on the heat-absorbing surface of heat-absorbing metal plate by adopting magnetic control sputtering process is aluminum-nitrogen aluminum (Al-N / Al) composite coating or aluminum-stainless steel-copper (A-ss / Cu) composite coating; and on the heat-absorbing film an optical protective film is coated, said optical protective film has high light transmittance and high weatherability.

Disclosed are a nm compound functional agglomerate for sunshine plate and its preparing method, made of organic nm compound material having been processed on the surface and compounded, copolymer of polycarbonate, antioxidant, light stabilizer and elasticizer and other raw materials, through steps of mixing with super high speed, cooling, particle forming and so on. The invention has outstanding resistance to impact and weather, with impact strength being increased by 20-100%, that its compounded kept being higher than 80%, color change degree being 0-1 degree and resistance to impact being higher than 80% after 1500h artificial accelerated aging experiment by 9 weather experimental equipment, so it is suitable for manufacture of fal low, solid and wave-shaped outside sunshine plate with higher requirement for work condition and weather resistance.

The invention discloses an adjustable type electromagnetic damping vibration absorption boring bar, and belongs to the field of mechanical machining. The problems that an existing vibration absorptionboring bar based on a damping device is prone to failing, or complex in structure and large in manufacturing difficulty are solved. The vibration absorption boring bar is characterized in that corresponding relation tables of process parameter combinations and optimal exciting current are preset in a master controller, each process parameter combination comprises rotating speed, the feeding amount, the back cutting depth amount, the workpiece material and boring cutter geometric parameters, the electromagnetic damping device is motivated by the optimal exciting current to enable the radial vibration of a bar body under the corresponding process parameter combination to be minimum, and the master controller searches the process parameter combination closest to the input actual process parameter combination and the corresponding optimal exciting current from the corresponding relation table before the vibration absorption boring bar is used for boring and machining, the master controller is further used for controlling an excitation current source to carry out excitation on an electromagnetic damping device when the vibration absorption boring bar is used for boring, and the electromagnetic damping device is motivated by the optimal exciting current to carry out vibration absorption on the bar body.

The invention discloses a numerically-controlled modular microcomputer power supply overvoltage-undervoltage protection circuit, which comprises a detection part and a transmission part, wherein the detection part comprises at least one detection module; each detection module comprises an undervoltage comparison circuit, an overvoltage comparison circuit and an alarming circuit, each of the undervoltage comparison circuit and the overvoltage comparison circuit is a hysteresis comparator, test voltages are input into the two comparison circuits simultaneously to be compared with a reference voltage, and output of each comparison circuit is connected with the alarm circuit; and a transmission circuit comprises a microcontroller and an LAN bus module, the output of each comparison circuit is connected with the microcontroller, and the microcontroller is connected with an upper computer through the LAN bus module. The numerically-controlled modular microcomputer power supply overvoltage-undervoltage protection circuit can protect a microcomputer power supply module against overvoltage and undervoltage simultaneously, and has the advantages of being small in size, high in precision, safe and reliable, convenient and universal, and more intelligent in transmission.

The invention provides a long-service-life reference electrode applicable to the high-temperature and high-voltage corrosive environment. A core of the electrode is formed by hot pressed sintering, a shell of the electrode is composed of an upper end body, a middle end body and a lower end body, the middle end body is connected with the lower end body into a whole, an upper end cover is connected with the upper end body through threads, an isolation external member composed of a first fluororubber pad and first microporous ceramic is arranged between the upper end body and the middle end body, an anti-explosion pad is arranged between the upper end body and the upper end cover, one end of a high-temperature-resisting lead of the electrode penetrates through the upper end cover of the electrode and the anti-explosion pad to be connected with the core of the electrode, the core of the electrode is fixed in the upper end body by utilizing a positioning pad, the positioning pad and the anti-explosion pad are sealed by solid powder epoxy resin, a second fluororubber pad and a second microporous ceramic core are arranged between a lower end cover and the lower end body. The reference electrode can be used under the high-temperature and high-voltage environment, and the use effects of high-temperature resistance, high-voltage resistance, no need of maintenance and long service life are achieved.

The invention discloses an extended target stable tracking point extraction method based on local and global coupling. According to the method, preprocessing such as denoising and enhancement is performed on an image to be processed; a GMS (Grid-based motion statistics) algorithm is used to perform feature point matching on two adjacent frames of images; generalized Hough transformation is performed on matched feature points, and features that contribute to the peak points of an accumulator are obtained and are adopted as basic feature points; the homography mapping matrix of the feature points of the two adjacent frames of images is obtained by using the basic feature points; and a feature point of sub-pixel precision of a current frame of image which is obtained by means of mapping on the basis of a tracking point of a previous frame of image is calculated through using the homography mapping matrix, and the feature point is adopted as the tracking point of the current frame of image. The tracking point obtained by using the method of the invention is a virtual global feature point which is obtained by means of mapping on the basis of a plurality of local matched feature points on a target; and a condition that the target always has stable and obvious features is not required. The method has high robustness to the translation, scale, illumination, blur, attitude and self-occlusion of the target, and even changes such as the escape of a part of the region of the target from a field of view.

The invention discloses a power module, which comprises an IGBT module group, IGBT driving boards, a radiator of the IGBT module group, DC busbars connected with IGBT modules, AC copper bars connected with the IGBT modules in parallel, a capacitor group, positive and negative bus copper bars and an intermediate insulating layer, and is characterized in that the IGBT modules, the IGBT driving boards, the DC busbars and the AC copper bars are symmetrically arranged at two sides of the radiator, and the DC busbars, the positive and negative bus copper bars and the intermediate insulating layer are connected into an integral whole together through an output terminal of the capacitor group. The power module disclosed by the invention can reduce stray inductance of the IGBT modules and can reduce turn-off overvoltage of the IGBT modules; the IGBT modules can be arranged at two sides of the radiator, thereby being more compact in structure, and improving the power density; and the AC copper bars are identical in path, so that IGBT current sharing is more excellent, and the reliability is higher.

The invention relates to the field of straight well and horizontal well multi-stage hydraulic ejecting fracture process tube columns, in particular to an Archimedes double-spiral division type hydraulic ejector. The ejector comprises an ejector body and nozzles, and is characterized in that two passageways distributed in an Archimedes double-spiral mode are distributed on the inner wall of an ejector inner cavity in the ejector body, and the nozzles are arranged on the two passageways and communicated with the outer surface of the ejector body. The passageways distributed in the Archimedes double-spiral mode are designed on the inner cavity of a conventional hydraulic ejector, the parameters of the double-spiral structure are optimized, the nozzles are distributed on the double-spiral passageways of the ejector inner cavity, and therefore sand carrying fluid flows to the nozzles along the spiral passageways in the Archimedes double-spiral body, the concentration, flow and pressure of particle sand among single-stage hydraulic ejector nozzles or double-cluster hydraulic ejectors are balanced, the problem that a double-cluster hydraulic ejector fails is effectively solved, practicability is high, and the effect is obvious.

The invention provides an Archimedean-double-helix flow split type double-cluster hydraulic ejection and fracturing integrated tubular column. Two Archimedean-double-helix flow split nipples and inner cavities of two Archimedean-double-helix flow split hydraulic ejector bodies are specially machined to form an Archimedean-double-helix trapezoid structure, and the surface of a double-helix trapezoid groove is plated with a nickel-based alloy material so as to prevent erosion of the local part of the helix trapezoid groove by fluid due to changes of the rotation direction (rotation angle). The tubular column enables the rotational-flow sand-carried fluid to flow into each nozzle along the helix groove, accordingly, the balance among the particle sand concentration, the flow and the pressure between the Archimedean-double-helix flow split hydraulic ejector in the upstream and the Archimedean-double-helix flow split hydraulic ejector in the downstream of the double-cluster hydraulic ejection and fracturing tubular column is achieved, the objective of simultaneous ejection opening of strata and bushings by the two Archimedean-double-helix flow split hydraulic ejectors is reached, the problem such as the failure in pulling the double-cluster hydraulic ejection and fracturing tubular column by an arranged bottom seal is effectively solved, the practicality is high, the effect is apparent, and the tubular column is applicable to a bottom seal pulled multi-stage hydraulic ejection and fracturing process in horizontal wells.

The invention provides a heat superconductive panel fin radiator with fins on the surface thereof. The radiator herein includes: a radiator substrate; a plurality of heat superconductive heating panels which are parallelly disposed at intervals on the surface of the radiator substrate; each heat superconductive heating panel is provided with a heat superconductive pipeline which is formed therein, and the heat superconductive pipeline is a closed pipeline which is filled with a heat conductive working medium; a radiating fin structure which is disposed on at least one surface of each heat superconductive heating panel; the radiating fin structure includes at least one radiating fin which extends in wave form along the direction in parallel to the surface of the heat superconductive heating panel. According to the invention, the heat superconductive panel fin radiator herein has the characteristics of high fin efficiency, large heat exchange area per unit volume, strong radiating capability, small size, light weight, flexible and various appearance and structure, low cost and small radiator substrate. The heat superconductive panel fin radiator herein can deploy devices with large power, is suitable to lower temperature environment of alpine regions in winter, and addresses the anti-freezing problem of heat pipes and water-cooled radiators.

The invention discloses a sulfonated polyaniline modified sodium bentonite resistance-reducing agent, which is mainly formed by mixing sodium bentonite, carbon fiber, graphene, carbon black, zinc powder, nickel powder, aniline, ammonium persulfate, metanilic acid, ammonium chloride, calcium oxide, sodium polyphosphate, sodium benzoate, cement and a retarder. By preparation at normal temperatures and pressures, dust is not easy to generate, and the product is soluble in water, contains no toxic or harmful substances. Environmental influence is little, construction is simple and convenient, and cost is low. The prepared resistance-reducing agent has low electrical resistivity, good corrosion resistance, good stability and good water-retaining property, is suitable for acidic and alkaline soil, sand, mountainous areas, rocky areas and the like where electrical resistivity is high and water content is easy to change, especially for soil with high electrical resistivity and acidic areas.

The invention discloses an environment-friendly microemulsion capable of being dispersed into nano liquid drops in situ, and a preparation method and application thereof. The microemulsion comprises the following components in parts by weight: 18.5-45 parts of emulsifier, 5-10 parts of water, 0-3 parts of assistant and the balance of biodiesel, totaling 100 parts. The microemulsion has favorable high-temperature stability, solves the problem that the existing nano emulsion treating agent can easily fail in a severe environment, does not generate environmental pollution by using green degradable biodiesel as the raw material, and has favorable lubricating effect. Besides, the microemulsion can be dispersed into nano liquid drops in water in situ, and can perform favorable lubricating and plugging effects on micro / nano cracks in well drilling when being used as a treating agent of the water-base drilling fluid.

The invention discloses a foam type low-temperature flue gas denitration catalyst and a preparation method thereof. The flue gas denitration catalyst consists of the following components in percentage by weight: 60-80% of titanium dioxide, 1-5% of ammonium metavanadate, 1-5% of ammonium paratungstate, 0.1-1.0% of boric acid and 20-35% of aluminum oxide. The denitration catalyst is foamed and can be used for performing denitration reaction at a temperature of 120-400 DEG C. The foam type low-temperature flue gas denitration catalyst is simple in formula, simple in manufacturing process, capable of greatly lowering the construction cost and the energy consumption, great in surface area, high in catalytic activity, stable in chemical property, good in sulfur resistance and long in service life, can be used for successfully realizing effectively removing a nitric oxide component contained in the flue gas at a relatively low temperature to overcome the defect that the conventional high-temperature catalyst has to be used for further heating the tail gas or has to be adjacent to the position of the flue gas vent hole so as to remove a nitric oxide component. Moreover, a measured light-off temperature is lower than 140 DEG C.

The invention discloses a preparation method of a cationic polyamino acid magnetic adsorbent. The preparation method comprises the steps of preparing composite nanoparticles of silica-coated ferroferric oxide of a core-shell structure by using the conventional co-precipitation method and hydrolysis method, then hydrolyzing a compound carrying a cationic polyamino acid group with a hydrobromic acid / acetic acid solution, dialyzing and freeze-drying to obtain a polyamino acid solid powder, reacting the composite nanoparticles, the polyamino acid solid powder, dimethacrylate and an initiator, separating, washing and drying to obtain the cationic polyamino acid magnetic adsorbent. The method is simple, mild in condition, strong in controllability and easy to operate; the prepared adsorbent hasgood structural stability, is not affected by the factors such as temperature and ion concentration and has high adsorption efficiency, and the polyamino acid macromolecules therein are biodegradableto reduce secondary pollution to water bodies.

The invention relates to the technical field of the composite coating, and specifically relates to a composite coating on an aluminum workpiece surface and an application thereof. An Al2O3-based ceramic hard wearing layer is arranged on the surface of the aluminum workpiece, and a tungsten disulfide layer is arranged thereon. By arranging the composite coating disclosed by the invention, the aluminum oxide-based ceramic hard wearing layer of the compositing coating is high in hardness and small in roughness, the wear resistance of the workpiece is improved; a tungsten disulfide monomer lubricating layer fills microproes of the aluminum oxide-based ceramic hard wearing layer, reduces the roughness of the aluminum oxide-based ceramic hard wearing layer and a friction coefficient is small; the film layer of the composite coating is good in uniformity, strong in binding force, and solves the problem that the monomer lubricating layer in the composite coating under a high-pressure heavy-load working condition is prone to failure; the tungsten disulfide monomer lubricating layer is thin in film layer, the leakage amount caused by the monomer lubricating layer wearing of the composite coating in the work process of a movable scroll plate and a stationary scroll plate of a scroll compressor is reduced, the cooling capacity is greatly improved, and the compression performance of the compressor is improved.

The invention discloses a high-performance road multiphalte filling glue, which is prepared by doping an SBS modified asphalt filling glue with modified nano-silica, wherein the doping amount of the modified nano-silica is 5-10% of the total mass of the multiphalte filling glue. According to the present invention, nano-silica is modified with the amino functional silane coupling agent (KH550), andthe temperature adaptation range and the durability of the filling glue are improved by determining the mixing ratio of the nano-silica filling glue, such that the product is suitable for areas withlarge annual temperature difference; and the obtained high-performance road multiphalte filling glue solves the problems of poor durability and easy failure of the filling glue in areas with large temperature difference.

The invention provides a high-power thermally superconducting plate-fin combined radiator for rail transit, comprising: a thermally superconducting plate; a plurality of first bottom substrate spacers, the first bottom substrate spacers being positioned between partially adjacent thermal superconducting plates; a surface contacting with that thermal superconducting plate on both side of the spacerstrip of the first bottom substrate is provided with a first channel, and a plurality of through holes are arrange on the spacer strip of the first bottom substrate; a second bottom substrate spacerstrip positioned between adjacent bottom substrate spacer strip groups; at least one side of that space strip of the second bottom substrate is provided with a second channel on the surface contactingwith the thermal superconducting plate; the surface of the thermally superconducting plate contacting with the spacer strip of the first bottom substrate and the surface of the thermally superconducting plate contacting with the spacer strip of the second bottom substrate are provided with connecting through holes. A heat dissipation fin located on at least one surface of the thermally superconducting plate; The flange is located at the periphery of the thermal superconducting plate, the first bottom substrate spacer, the second bottom substrate spacer and the heat dissipation fin. The invention can effectively solve the problem that the temperature of the power device is not uniform.

The invention relates to the technical field of fireproof coatings, in particular to a hydrophobic efficient fireproof coating and a preparation method thereof. The preparation method of the fireproofcoating comprises the following steps: adding a film forming matter, a modifier and aerogel powder into dispersion equipment, carrying out uniform mixing under stirring, performing heating to 80-100DEG C in a stirring state, and keeping the temperature for 2-3 hours; transferring dispersed slurry into a grinding device, performing cooling to 5-10 DEG C, and performing grinding until the finenessof the slurry reaches 35-45 microns; adding pigments and fillers into the ground slurry, and carrying out grinding and dispersing uniformly; transferring the slurry into the dispersion equipment again, performing cooling to 5-10 DEG C, sequentially adding water, a flame retardant and an assistant, and carrying out dispersion; and stopping dispersing, and carrying out sieving and packaging. According to the invention, the film forming matter, the modifier and the aerogel powder are mixed, then heated and dispersed, and then cooled and ground, so the surface of the aerogel powder is coated andmoisture or other small molecular substances are prevented from entering holes of the aerogel powder; and thus, the problems that the aerogel powder is poor in dispersity and prone to losing efficacywhen applied in coatings are solved, the heat conductivity coefficient of the fireproof coating in an earlier stage of heating is obviously reduced, and fireproof time is prolonged.

The invention belongs to the technical field of electrical materials, and particularly relates to a preparation method of a medium-high temperature self-repairing insulating material. At present, mostof extrinsic self-repairing systems are double-component microcapsule systems, the systems are complex in structure, it is difficult to ensure that a repairing agent can make contact with a catalystand complete self-repairing before failure when a micro-discharge defect occurs, and common single-component system repairing liquid contains unsaturated double bonds and is prone to failure in advance at the medium-high temperature. The preparation method comprises the steps: firstly, synthesizing an imidazole-added epoxy resin matrix with anion catalytic capability, and introducing microcapsulescoated with stable repair liquid into the matrix to endow the insulating material with the capability of repairing micro-discharge defects. When electric branches caused by micro-discharge defects are developed into microcapsules, the microcapsules can be broken, electric branch channels are filled with the repairing liquid, and then the repairing liquid is cured under the catalysis of oxygen anion groups in the channel walls under the medium-high temperature condition, so that the defects of the electric branches are repaired, and meanwhile, the electrical performance is completely recovered.

The invention provides a thermal superconducting fin radiator with a phase change heat storage function. The thermal superconducting fin radiator comprises a substrate, a cover plate, a phase change heat storage structure and thermal superconducting plate fins, wherein the substrate comprises a main body part; the main body part is provided with opposite first surface and second surface; a grooveis formed in the first surface of the main body part; the cover plate covers the groove and seals the groove; the groove is filled with the phase change heat storage structure; and one end of each thermal superconducting plate fin is inserted into the substrate at the bottom of the groove and the other end passes through the cover plate and extends to the upper part of the cover plate. The phase change heat storage structure is capable of absorbing and storing a large amount of transient heat caused by short-term overload or fluctuations of power devices and keeping the temperature of the radiator and the power devices stable. The thermal superconducting plate fins have the advantages of high cooling efficiency and small thermal resistance, and are not limited by low temperature.

The invention relates to a method and device for precisely and controllably cutting graphene bands through a photo-catalytic oxidation function. The method is characterized by comprising the steps that firstly, graphene with a substrate is fixed to a two-dimensional micromotion platform driven by piezoelectric ceramic; secondly, Z-direction locating of a semiconductor probe is achieved through a magnetostriction mechanism with the help of a power controller; thirdly, an atomizer is used for atomizing auxiliary liquid, and the atomized auxiliary liquid is adsorbed to the surface of the semiconductor probe; and fourthly, an ultraviolet source emits ultraviolet light, the ultraviolet light irradiates the semiconductor probe through a light source transmission device after being focused through a collecting lens, and meanwhile through combination of ultraprecise motion of the two-dimensional micromotion platform in the direction X and the direction Y, the graphene bands with different two-dimensional patterns are cut. By means of the method and device, the problems of equipment corrosion, environment pollution, human body hurt and easy failing caused by using a traditional enhancement reagent and the problems of expensive equipment, complex operation conditions, control difficulty and the like caused by plasma and transition metal are solved.

The invention provides an air-cooled liquid-cooled combined thermally superconducting plate type heat sink, comprising a thermally superconducting plate, a sealing passage formed in the thermally superconducting plate and communicated with each other, and a heat transfer working medium filled in the sealing passage; a liquid-cooled radiator located on the surface of the thermal superconducting plate, wherein a liquid passage is formed in the liquid-cooled radiator, and a liquid inlet port and a liquid outlet port communicated with the liquid passage are arranged on the liquid-cooled radiator;a first heat dissipation fin located on at least one surface of the thermal superconducting plate, wherein a plurality of first heat dissipation channels arranged in parallel spaces are formed in thefirst heat dissipation fin; at least one fan is position at one end of that first heat dissipation fin, and the air outlet surface of the fan faces the first heat dissipation fin and is perpendicularto the extending direction of the first heat dissipation passage. The invention has the following beneficial effects: the forced heat dissipation mode is flexible, the heat dissipation ability is remarkably enhanced, and another device can be used for forced heat dissipation when any device of air cooling or liquid cooling fails, which does not affect the heat dissipation effect, and has high reliability.

The invention discloses a bore meal detecting light hydrocarbon analysis method. It manages and controls through computer, and runs degassing system program (vacuumizing, forming degassing space, degassing, collecting gas process, and degases from bore meal) and detecting analysis system program ( detecting gas groups, A / D transferring, data collecting, and data dealing, displaying and printing gas groups). The invention applies the logging light hydrocarbon group method in earth logging. The invention solves the difficult problem of evaluating hydrocarbon reservoir method, because of using PDC aiguille, in traditional earth logging detecting method; and achieves the interlocking logical controlling of complex controlling loop and optimum controlling in program step control by the usage of computer, makes the whole process, including degassing, collecting gas, sending gas and measure, be full automatic, conquers all kinds of faults of traditional manual operation, completely removes man made factor and air influnces.

The invention provides an interception method and an interception device of spam messages and relates to the short message business in mobile communication field. The method comprises steps of obtaining history receiving short message samples including spam messages and non-spam messages and extracting particles from the history receiving short message samples, wherein each of the history receiving short message samples forms a particle characteristic vector comprising multiple particles; calculating weighed values belonging to the spam messages of the particles in the particle characteristic vectors, and when the weighted values are arranged from a big one to a small one, extracting corresponding particles of the Nth weighted value in each of the history receiving short message samples so as to form alternative participle characteristic vectors; and generating rules to intercept the spam messages to intercept the spam messages according to the alternative participle characteristic vectors. In this way, rules to intercept the spam messages can be automatically generated and synchronized to a spam message real-time interception system to intercept the spam messages.