269results about How to "Solve the protection problem" patented technology

The invention discloses a movable treatment device for radioactive waste water, which comprises a protecting vehicle, a heat preservation cabin, a treatment system of waste water, a PLC controlling system and an external connecting pipeline, wherein, the treatment system of waste waster consists of a liquid and solid separator, a pre-filter, an ultra-filter, a security filter, a reverse osmosis filter of two levels and a combined adsorption device; the PLC system consists of a PLC, a flow meter, a conductivity meter, a radioactivity detector and a pressure controlling device. The invention solves the contradiction between the low interception and adsorption efficiency of nuclide and small size under the condition of large flow, meanwhile, which solves the problems of integration of a plurality of techniques and protection of the movable treatment device of radioactive waste water and realizes automatic operation, safety and reliability in the overall process.

The invention provides a resin matrix composite with a super-hydrophobic bionic surface and a preparation method of the resin matrix composite. The method comprises steps as follows: the surface of a matrix of the resin matrix composite is polished until the surface turns white; the matrix of the resin matrix composite is processed through ultrafast laser, and a microstructure is formed on the surface; a first coating is sprayed on the microstructure surface of the matrix of the resin matrix composite through a pneumatic type paint spray gun to form a bonding layer, a second coating containing nanosilicon dioxide particles is sprayed to form a surface hydrophobic function layer, and the resin matrix composite with the super-hydrophobic bionic surface is obtained. The preparation method is simple to operate and facilitates production, the prepared resin matrix composite with the super-hydrophobic bionic surface can allow water drops to freely slip off, and the real self-cleaning super-hydrophobic function is realized.

Disclosed a water-proof dust-proof power distribution cabinet comprises a cabinet, and an axial axialflown fan. Wherein, the two sides of cabinet both utilize the upper-lower division interlayer structure; the air inlet is arranged on the inner wall of lower separated layer and the air outlet is arranged on the inner wall of upper separated layer while the upper and lower separated layers are both covered water-proof clapboard with Persian blinds; and the position of air outlet and air inlet are individually relative to its Persian blinds to form upper-lower differential height. And an intelligent temperature-humidity controller and a heater are arranged in the cabinet while a replace slot of dust filtration net is arranged over the air outlet and the air inlet for replacing the dust filtration net more easily. The invention also arranges a internal air channel on the two sides of power distribution cabinet while the air inlet and the air outlet both have the dual-water-proof measure and the dust filtration net is arranged to solve the problem of aeration and protection. In addition, the intelligent temperature-humidity controller can detect and control the temperature and humidity to prevent the effect on the appliance elements caused by the dew generated by over lower temperature and the higher temperature.

The invention discloses a method for measuring the micro deformation of structures under thermal vacuum high-and-low-temperature environments. According to the method, a measuring subsystem, a temperature control subsystem and a structural support subsystem are adopted; a tested structure is subjected to speckle spraying, and then, the tested structure is installed on the supporting device of a vacuum tank, and corresponding target points and temperature sensors are attached onto the tested structure; after preparation work is completed, the vacuum tank is sealed and vacuumized; liquid nitrogen supply and a heater are adjusted, so that internal ambient temperature can be adjusted; after a target temperature condition appears, a motor is adopted to control and adjust the positions of cameras, so that images can be obtained; after experimental data acquisition is completed, software is utilized to perform correlation calculation and rigid displacement removal; and the deformation of the tested structure is finally obtained. The method of the invention provides good hardware and software system support for the high-precision measurement of the thermal deformation of the structure and can carry out in-situ high-precision thermal deformation measurement under wide-temperature range vacuum conditions.

The invention relates to a tunnel protection structure crossing a high-top and deep-bottom karst cave, which is arranged in the high-top and deep-bottom karst cave and comprises a main body structure of a tunnel, a protective cover, a foundation protective cover, a foundation arc structure of the protective cover and a supporting arch bridge of the tunnel. The tunnel protection structure crossing a high-top and deep-bottom karst cave is characterized in that the protective cover is arranged above the main body structure of the tunnel; the foundation arc structure of the protective cover is arranged at the foundation root of the protective cover; and the foundation arc structure of the protective cover spans over the karst cave; a tunnel bottom arc structure spanning over the karst cave is arranged below the main body structure of the tunnel; and the tunnel bottom arc structure supports the main body structure of the tunnel. , by the tunnel protection structure crossing a high-top and deep-bottom karst cave, a high-top and deep-bottom semi-filling karst cave with short longitudinal distance can be protected, the purpose of minimizing serious damage of dangerous falling rocks to projects is realized, and the safety and the reliability of the construction and the long-term operation of the main body structure of the tunnel can be ensured.

The invention relates to a WEB backdoor detection method and system based on a relevance tree. The WEB backdoor detection system comprises a link relevance tree generation module and an attack real-time detection module. The detection system does not depend on antivirus software or file feature detection software, instead, initiative crawling and access record collecting are conducted on WEB links first, a link set of all URLs of a WEB is established through analysis and process, and the link and skip relation of the URLs is marked in a computerized algorithm in a tree mode, so that a link relevance tree is formed. If a backdoor URL request does not exist in the link relevance tree, a security monitoring module of the system gives an alarm, and the attack request is stopped. By means of the detection method, the safety of WEB application is improved, the problem of WEB backdoor attack which can not be detected and prevented by security products such as the antivirus software and a firewall is solved, the university is good, there is no need to mount software programs on a WEB server, and the type of the WEB server, WEB programming languages, customer usage and the like are all made to be transparent.

The invention discloses an independent digital flame following and heating device of a hot spinning machine and relates to a hot spinning workpiece heating device, aiming to solve the problems that a workpiece is manually held or fixed on a spinning seat for flame heating in the traditional hot spinning production, so that the temperature of the workpiece cannot be accurately controlled, the tolerance requirement cannot be met, a heating area of the flame cannot be flexibly controlled, the temperature field of the workpiece is not uniform, and equipment is easy to be damaged by the flame crossing the border. In the invention, a shell on a longitudinal slide mechanism is connected with a permanent seat through a connecting element, and a slide frame on a vertical slide mechanism is connected with a longitudinal screw nut on the longitudinal slide mechanism through a connecting element; a connecting plate is connected with a vertical screw nut through a connecting element; each adjustment mechanism consists of a supporting post and an adjustment frame, and the adjustment frame is fixed on the supporting post; the two adjustment mechanism are longitudinally arranged along the permanent seat, and the supporting posts on the adjustment mechanisms are fixedly arranged on an adjustment flat panel; and each adjustment frame is provided with a heating torch. The invention is used for a device for accurately heating during workpiece hot spinning.

The invention discloses an omnidirectional cataclastic rock mass deep hole installation and recovery device of a microseismic unidirectional sensor. The omnidirectional cataclastic rock mass deep hole installation and recovery device comprises a sleeve which is embedded in a rock mass drilling hole, wherein a unidirectional sensor fixing device is installed at each part with a preset depth and direction in the sleeve and comprises an intermediate joint which is connected with the sleeve by inner threads, a wedge body combining body which is connected with the intermediate joint and is provided with a wedge body combining body female groove, a wedge body which is adapted to the wedge body combining body female groove, another unidirectional sensor which is connected with the wedge body, a tensile-resisting cable which is connected with the another unidirectional sensor, an elastic pressing device which is fixed on the wedge body combining body, and a pulling type lifting device which is connected with a second leading-out terminal of a cylindrical helical torsional spring of the elastic pressing device and is used for releasing the wedge body, wherein one end of the elastic pressing device tightly presses the wedge body in the wedge body combining body female groove. With the adoption of the omnidirectional cataclastic rock mass deep hole installation and recovery device, the installation is not limited by severe geological conditions and drilling inclined angles, the installation of a vertical hole and an inclined hole in a cataclastic rock mass can be realized, and the unidirectional sensors are easy to recover.

The invention discloses a fluorescent inflaming-retarding multifunctional double-layer fabric. The surface layer of the fabric is woven from inflaming-retarding yarn capable of being dyed with fluorescence color, and the inner layer of the fabric is woven from non-melting inflaming-retarding yarn incapable of being dyed with fluorescence color. The warps of the inner layer are lifted to be interwoven with the wefts of the surface layer to form a binding texture so that the two layers can be connected. The fabric is prepared in the way that the warps of the inner layer are lifted to be interwoven with the wefts of the surface layer to form the binding texture so that the two layers can be connected, and then dyeing treatment is conducted to generate the fluorescent inflaming-retarding multifunctional double-layer fabric. Specifically, the two layers of the fabric are connected in the way that when surface wefts are put in for surface layer weaving, all inner warps must sink to the space below a shed and can not be interwoven with surface wefts; when inner wefts are put in for inner layer weaving, all surface warps must be lifted and can not be interwoven with inner wefts. The double-layer fabric can have different spaces and can be used for making protection garments in a plurality of fields.

The invention discloses sunscreen cream capable of repairing skin damage, and belongs to the field of cosmetics. The sunscreen cream is prepared from, by mass, 1-30 parts of an industrial cannabis leaf extract, 60-90 parts of a solvent, 20-35 parts of additives, 0-10 parts of a physical sunscreen agent, 3-25 parts of a UVA chemical sunscreen agent and 3-20 parts of a UVB chemical sunscreen agent.The additives include the emollient, the preservative, the emulsifier, the film forming agent, the thickener, the humectant, the antioxidant, the pH adjusting agent and the natural additives. By meansof the sunscreen cream, the purpose of UVA and UVB protection on the skin can be effectively achieved, and the sunscreen cream has no irritation to the skin; meanwhile, the sunscreen cream is suitable for light indoor ultraviolet ray exposure and strong outdoor ultraviolet ray exposure, more importantly, the photochemical damage to the skin by ultraviolet rays can be timely repaired, and skin aging is slowed down.

The invention relates to a network security traffic platform based on software definition. The platform is characterized by including an application layer, a management layer and a data layer; the application layer comprises a network application, network services and a custom application interface; the application layer can directly provide an application process with services and is used for allowing mutual communication of multiple system application processes and finishing services required by processing of a series of services; the management layer comprises an SDN (software defined network) controller; the SDN controller separates control rights from network equipment and centrally manage the control rights; the data layer comprises a fire wall, a web application protective system WAF, and an IDS (intrusion detection system); the data layer is available for detecting and controlling access data. The platform has the advantages that the defects in resource management and security protection in the SDN environment can be solved and the security protection need of the environment with high network traffic, diversified security needs and high requirement on security trust degree is met.

The invention discloses a powder cored wire for an aluminum-based amorphous anti-corrosion coating. The powder cored wire is characterized in that an aluminum strip serves as wire skin, and the wire filling rate is 40%-48%; the powder cored wire is prepared from, by atom, 18%-25% of Ti, 8%-12% of Ni, 1%-3% of Re, and the balance Al. According to a preparation method of the powder cored wire, weighing and burdening are conducted according to the powder cored wire element composition percentage, the components are put into a powder mixing machine to be mixed; the aluminum strip is tied to be in a U shape, and the mixed powder with the powder coefficient being 40%-48% is added into a U-shaped tank; an opening of the U-shaped groove is closed, and the powder is wrapped in the U-shaped tank; and the wire is gradually drawn, the diameter of the wire is gradually reduced through a wire-drawing die, and the final wire diameter is 2.0 mm. The powder cored wire has high amorphous forming capacity; the aluminum-based amorphous coating prepared through a high-speed electric arc spraying technology is good in corrosion resistance, the long-term anticorrosion function of key components of ocean engineering equipment can be remarkably improved, and the service life of the key components of the ocean engineering equipment can be remarkably prolonged.

The invention discloses a construction method for modifying the conventional structural slab into subway bed foundation, which comprises the following steps of: A) performing daubing treatment on the upper surface of the conventional structural slab; B) pouring a reinforced concrete surface layer on the upper surface of the conventional structural slab; and C) arranging a drain device. The construction method can radically solve the problem of stray current protection under the condition of not changing reinforcing bars of the conventional structure at all, risks in the operation process are effectively controlled, the maintenance cost in the later period is greatly reduced, and the construction method has wide application prospect in the field of underground-ground space integrated comprehensive development.

The invention discloses a method for preparing a carbon-based thin film material with a light soft metal surface. Compound carbon thin film material prepared by the invention not only has excellent combination strength with a light soft metal substrate, but also expresses extremely excellent bearing ability and frictional property; the excellent performances can effectively solve the problems in function protection, friction, abrasion and corrosion of the surface of a light alloy movement member; and the method disclosed by the invention is simple in preparation progress of the thin film, and each in operation and control of operation parameters.

The invention provides a preparation method of a chiral isoxadifen-ethyl compound. The compound prepared by the method is a single enantiomer. The preparation method is simple, few in byproduct, highin product yield and wide in application prospect. In addition, the invention further provides a herbicide safener. The herbicide safener contains the chiral isoxadifen-ethyl compound serving as an active ingredient, so that application range of herbicide can be expanded effectively.

The invention discloses a piston-cylinder-fixed type air pressure multi-disc friction clutch. The air pressure multi-disc friction clutch is connected between a first transmission device and a second transmission device and comprises a front-segment structure, a rear-segment structure and a connecting shaft, the connecting shaft penetrates through the front-segment structure and the rear-segment structure, and the front-segment structure comprises a piston cylinder, a piston, a pressure disc and a return spring; the rear-segment structure comprises an inner friction disc base, multiple inner friction discs, multiple outer friction discs and an outer friction disc connecting sleeve; the piston cylinder is installed on the first transmission device, the piston cylinder, the piston, the pressure disc, the return spring, the inner friction disc base and the outer friction disc connecting sleeve are sequentially connected in a matched mode, the multiple inner friction discs and the multiple outer friction discs are alternately arranged, and the second transmission device is fixedly connected on the outer friction disc connecting sleeve. The air pressure multi-disc friction clutch is compact in structure, good in protection and heat dissipation performance and convenient to maintain.

The invention discloses a wind tunnel test putting device and a put object model design method thereof. The device comprises a putting hanging frame, which is fixedly provided with a spring, wherein one end of the spring is connected with a model hook, a hook rotating shaft is fixedly arranged on the putting hanging frame, and the model hook is rotationally connected with the hook rotating shaft; a T-shaped inclined joint, which is provided with a T-shaped inclined joint rotating shaft, wherein the T-shaped inclined joint is connected with the model hook through the T-shaped inclined joint rotating shaft; a connector lug I, which is connected to the end part of the T-shaped inclined joint, wherein the end part of the connector lug I is connected with a constantan wire; a connector lug II, wherein the constantan wire is connected between the connector lug I and the connector lug II, and the connector lug II is connected with a cross-shaped connecting block; a sliding block, which is arranged on the putting hanging frame in a sliding manner; a distance adjusting screw, which is connected with the sliding block, wherein the connector lug I and the connector lug II are connected with a power lead; and a putting object model, which is hung on the model hook. According to the invention, the putting of an external store model in a wind tunnel putting test is rapidly, efficiently and stably realized, and the efficiency of the wind tunnel test is improved.

The invention discloses a new frost resistant vegetation concrete using gangue as crude aggregate to replace part of stones, and the new frost resistant vegetation concrete can be used in northern region road, river and reservoir slope protection and mountain repair and other projects, and belongs to the field of building engineering materials. Under the condition of no affect on the strength and porosity, optimum added quantity of the gangue for replacing the stones can be determined, corresponding measures are taken to enable the northern region requirements on concrete frost resistance to be met, optimum ratio and optimum admixture mixing amount and the like can be determined. The new frost resistant vegetation concrete can effectively solve the disadvantages of traditional slope protection and the difficult problems of slope protection of north cold regions in winter in China, can achieve the purpose of plant growth and greening, at the same time, can make full use of waste gangue to solve the problem of occupation of land resources and pollution of the environment due to large-amount accumulation of the waste gangue, can reduce the use of the stones, reduce the cost and protect the resources, and has more broad application prospects in the background of vigorously promoting energy conservation and environmental protection in China.

The invention relates to a wearable TD-LTE (Time Division-Long Term Evolution) terminal device and belongs to the technical field of wireless communication. The terminal device comprises a helmet video acquisition module, a wrist type display control module, a TD-LTE transmission module and a wearable interconnection module, wherein the helmet video acquisition module, the wrist type display control module and the TD-LTE transmission module are connected through a USB (Universal Serial Bus) interface and a Bluetooth interface of the wearable interconnection module. The wearable TD-LTE terminal device can access a TD-LTE network or a TD-LTE emergency communication system through the TD-LTE transmission module, so that the broadband multimedia information interaction between terminals and between the terminals and a remote command center is realized. By virtue of the device, the defects that tool application by site disposers for natural disasters, large accident rescue and the like is influenced due to the fact that a common TD-LTE terminal needs to be handheld are overcome, and meanwhile, the problems about use convenience and safety protection of the TD-LTE terminal in a complicated environment are solved.

The invention relates to a power interface circuit with high-level surge protection and high EMI performance. The input end of the circuit is connected with a power supply, the output end of the circuit is connected with a load, and the circuit comprises a protection circuit module, a first filter circuit module and a second filter circuit module which are electrically connected in sequence; the protection circuit module comprises a first piezoresistor, a second piezoresistor, a third piezoresistor and a gas discharge tube; the first filter circuit module comprises more than one first-stage filter circuit, and each first-stage filter circuit comprises a first-stage differential mode filter capacitor, a first-stage first common mode filter capacitor, a first-stage second common mode filtercapacitor and a common mode filter inductor; and the second filter circuit module comprises a second-stage filter circuit, and the second-stage filter circuit comprises a first differential mode filter inductor, a second differential mode filter inductor, a second-stage differential mode filter capacitor, a second-stage first common mode filter capacitor and a second-stage second common mode filter capacitor. Three functions of electromagnetic safety, surge protection and electromagnetic interference resistance are taken into consideration, and in the aspect of surge protection design, common-mode protection and differential-mode protection are achieved.