32results about How to "Reduce serious damage" patented technology

The invention discloses a method for preparing electrolytic manganese slag ecological cement, and belongs to the field of building materials and environment protection. The cement is characterized by consisting of calcined electrolytic manganese slag, blast furnace slag, a clinker, gypsum and an additive. The method comprises the following steps of: crushing the electrolytic manganese slag and then calcining the crushed slag at the temperature of between 500 and 900 DEG C, wherein the activity of the slag is increased to be close to that of fly ash from zero activity of volcanic ash; and grinding the blast furnace slag, the clinker, the fly ash or steel slag, the gypsum and the additive together or respectively according to a certain proportion and uniformly mixing the materials to prepare the electrolytic manganese slag ecological cement, wherein the amount of the calcined electrolytic manganese slag in the mixture is 10 to 50 percent. The method has the advantages of circularly utilizing a great amount of accumulated electrolytic manganese slag on a large scale and relieving serious damage of the electrolytic manganese slag to the environment, along with simple process, high product quality, low production cost and high economic, environmental and social benefit.

The invention discloses a method for making Tibetan paper by hand, relates to a papermaking technique, and in particular relates to the method for making the Tibetan paper by hand. The method provided by the invention is used for solving the problems that in the existing method for making the Tibetan paper by hand, the output is limited, the vegetation ecology is damaged, the quality of paper is low, the environment is polluted, and the like. The method comprises the following steps: cooking endothelium of thymelaeaceae wikstroemia stem and endothelium of stellera chamaejasme L. as raw materials; adding in a defined amount of potassium hydroxide in the cooking process; adding a defined amount of cactus juice as a dispersing intensifier into paper pulp; eliminating whiteness of the paper pulp with a defined amount of Coptis chinensis extract liquid according to the dyeing requirement; and discharging the waste liquid generated in the processes of raw material cooking and rinsing after being subject to flue gas treatment. The method provided by the invention retains the characteristics of the raw materials and processes of traditional Tibetan paper. The method for making Tibetan paper by hand is environment-friendly. The acquired Tibetan paper is excellent in uniformity, is mothproof and mildew-proof, can be stored for a long term and is flexible and folding-resisting. The appearance of the acquired Tibetan paper is laden with history. The Tibetan paper acquired by using the method can be used as a high-rank material for government document making, various classic Confucian texts, literature masterpiece printing, and Tibetan cultural handwriting.

The invention provides C30 concrete. One cubic meter of C30 concrete is prepared from the following raw materials: 304 to 315kg of P.O42.5R cement, 400 to 410kg of river sand, 400 to 410kg of machine-made sand, 200 to 210kg of recycled aggregate with the particle diameter being 5 to 10mm, 785 to 805kg of recycled aggregate with the particle diameter being 10 to 25mm, 82 to 88kg of tap water, 82 to 88kg of concrete stirring station recovery water, 51 to 57kg of S75 stage ore powder, 6.9 to 7.7kg of additives and 1.9 to 2.3kg of retarders; the fall highness of the C30 concrete is 200+/-20mm. The invention also provides a preparation method of the C30 concrete. In the C30 concrete provided by the invention, the content of the tap water and recovery water is respectively 50 percent; for the mixed recovery water, the ingredients of additives are regulated, so that the fall highness of the C30 concrete is 200+/-20mm; the quality effect identical to that of the concrete mixed by using pure tap water can be achieved; in addition, 50-percent recovery water is mixed in the C30 concrete; the C30 concrete workability is greatly changed; the use of the tap water is reduced; in addition, the recycled aggregate is obtained through crushing, processing and screening building garbage; the material cost is reduced; meanwhile, the ecological environment is effectively protected.

The invention discloses a system and method for detecting a dynamic detonation temperature of combustible dust cloud cluster diffusion. The system disclosed by the invention adopts a dust detonation temperature sensor, a temperature conduction sensitive element, a sensor supporting component, an integrated processing circuit and a computer; the detonation temperature of combustible dust can be accurately measured in real time, the reconstruction of a temperature field is realized, and the occurrence of accidental explosion of combustible dust is reduced and prevented, thereby reducing the serious damage to the surrounding environment, casualties and economic losses; the nature determination and damage consequence assessment of dust explosion incidents are realized, and the difficulties inengineering measurement are solved; and according to the temperature conduction sensitive element and the propagation speed change of pulse ultrasonic waves therein, a relationship expression betweenthe ultrasonic velocity and the detonation temperature is established, real-time dynamic measurement of the dust diffusion detonation temperature is realized, and the system has an objective application value and research value.

The present invention discloses a thermal insulation energy-saving environmentally friendly plant fiber cement composite plate and a producing method thereof, the thermal insulation energy-saving environmentally friendly plant fiber cement composite plate comprises the following raw materials by weight: 27-37 parts of vegetable fibers, 28-35 parts of Portland cement, 45-50 parts of fly ash, 10-20 parts of abandoned concrete, 1.3-2.7 parts of nano-titanium dioxide, 0.2-0.4 part of calcium fluoride, 0.3-0.6 part of calcium chloride, 0.6-0.9 part of magnesium oxide, 4-7 parts of hollow fiber, 12-15 parts of styrene-acrylic emulsion, 4-7 parts of linseed oil, 9-11 parts of rosin acid polyoxyethylene ester, and proper amount of water; the thermal insulation energy-saving environmentally friendly plant fiber cement composite plate has the advantages of thermal insulation, fire-retardance and the like, the comprehensive utilization level of plant fiber can be improved, and serious damage caused by improper handling of waste resources can be reduced.

Systems and methods are disclosed for detecting and mitigating temporary high-level impairments, in a communications channel, and subsequently, mitigating the deleterious effects of the dynamic impairments. The system includes a transmitter and a receiver. The transmitter is adapted to transmit at least one set of modulated signals. The receiver is adapted to receive the at least one set of modulated signals and mitigate temporary high-level impairment in the at least one set of modulated signals using at least one error vector received during the temporary high-level impairment.

The invention discloses a thermal-insulation sound-insulation type plant fiber cement composite ribbon board. According to the invention, a teflon emulsion dipping treatment process is employed to pretreat the surfaces of plant fiber so as to allow the internal and external surfaces of the plant fiber to be coated with a polymer film, the polymer is cured after drying, then mist-like waste engine oil is sprinkled, so the entire fiber is compact, obtains certain rigidity and has improved water resistance; and then fly ash is added to modify and replace a part of cement, so the generation amount of hydrated calcium hydrate is decreased, and corrosion resistance of the plant fiber is improved. Thus, the prepared plant fiber cement composite ribbon board has the advantages of thermal insulation, sound insulation, high compactness, good permeability, low cost, etc.; the level of comprehensive utilization of plate fiber is increased; and severe damage caused by improper disposal of waste resources is reduced.

The invention relates to the technical field of biology, in particular to elytrigia elongata external rectification potassium channel protein and a coding gene and application thereof. The elytrigia elongata external rectification potassium channel protein EeSKOR is cloned, and the amino acid sequence of the elytrigia elongata external rectification potassium channel protein EeSKOR is shown as SEQID NO. 1. It is found that the biomass and height of plants in a high-salt environment can be increased through EeSKOR, the content of H2O2 and MDA of transgenic tobacco plants is remarkably reducedthrough the overexpression EeSKOR gene under salt treatment, the SOD activity and chlorophyll content are increased, the Na + concentration of the transgenic plants is remarkably reduced, and the in-vivo K+ concentration of the transgenic plants is increased. EeSKOR can be used for improving the growth performance of the plants under high-salt stress, the salt tolerance of the plants is improved,and the elytrigia elongata external rectification potassium channel protein and the coding gene and application thereof have great significance in cultivating new salt-resistant plant varieties.

The invention provides an automobile load controller. The automobile load controller is divided into an input part and an output part, wherein the input part is machined with an internal spline by a jointing sleeve and directly connected with a one-shaft spline by the internal spline; the output torque of an engine is transmitted to the jointing sleeve (1) by a spline and transmitted to the output part by the jointing sleeve; when the torsion force required by a transmission is smaller than or equal to that required by the designed load, a shaft is normally engaged with the automobile load controller, so that the transmission operates normally; and when the torsion force required by the transmission is larger than that required by the designed load, the shaft is separated from the automobile load controller as an engaged single tooth (2) is stressed and a compression spring (4) retracts due to axial pressure, the transmission stops operating and produces hammering sounds, and then an automobile stops advancing.

The invention relates to the field of car washers. The invention discloses a vertical brush of a car washer. The vertical brush comprises a rotating roller, a cleaning brush assembly and a servo motordriving the rotating roller to rotate. The rotating roller comprises a roller body and a rotating shaft; a plurality of guide through grooves extending in the axial direction of the roller body are distributed in the outer ring wall of the roller body around the axial direction of the roller body at intervals. The cleaning brush assembly comprises a plurality of lifting blocks longitudinally distributed in the roller body at intervals, guide blocks integrally extending from the lifting blocks to the exteriors of the guide through grooves, and cleaning brush bodies located outside the roller body and fixed to the ends, away from the lifting blocks, of the guide blocks. The lifting block located at the lowermost end is a solid active lifting block. The other lifting blocks are driven lifting blocks with center holes, the upper end and the lower end of the roller body are provided with driving structures which drive the cleaning brush body to do lifting motion while rotating along with forward and reverse rotation of the servo motor, the vertical brush of the car washer can improve the overall running process, the cleaning performance is effectively improved, and great increase of the manufacturing cost is avoided.

The invention discloses a protection system for improving the safety of a physical layer of an unmanned aerial vehicle. The unmanned aerial vehicle is provided with a supporting frame and rotary wings. The supporting frame comprises supporting legs, and a cross beam is connected between every two adjacent supporting legs. Buffer layers are arranged at the bottoms of the supporting legs; the buffer layers comprise a first buffer layer, a second buffer layer and a wear-resistant layer; the first buffer layer is a rubber layer, the second buffer layer is a polyurethane foam layer, and the wear-resistant layer is a melamine resin layer; the polyurethane layer is arranged at the bottom of the rubber layer; the melamine resin is sprayed at the bottom of the polyurethane foam layer; by setting physical protection measures, when the unmanned aerial vehicle is accidentally influenced and falls, the unmanned aerial vehicle is protected and prevented from the physical level, serious damage to the unmanned aerial vehicle during accidental falling is relieved, and the safety performance of the unmanned aerial vehicle is improved.

The invention discloses a multifunctional oil discharge tank for a gas station. The multifunctional oil discharge tank comprises a support frame, wherein a tank body is fixedly connected to the top ofthe support frame, the tank body is composed of a movable cover and a bottom shell, and the movable cover is hinged to the top of the bottom shell; an alarm is fixedly installed at the bottom of themovable cover; buffer mechanisms are fixedly connected to the corners of the bottom of the support frame; and a controller and a temperature sensor are fixedly arranged at one end of an inner wall ofthe bottom shell. According to the multifunctional oil discharge tank for the gas station, the buffer mechanisms can greatly reduce severe damage to the oil discharge tank caused by accidental impactin the external environment, so that the oil discharge tank is not easily damaged, and the service life of the oil discharge tank is prolonged; a fire-resistant layer can greatly improve the fire-resistant performance of the oil discharge tank, the oil discharge tank is not easily burnt out when a fire occurs, and the service life is prolonged; and the alarm can give an alarm when the fire occursto timely inform a worker of coming to maintain and extinguish the fire, so that the safety performance is greatly improved, and a serious safety accident is avoided.

The invention discloses an axial magnetic and gaseous combination bearing device and belongs to the technical field of high-speed rotary machinery. The axial magnetic and gaseous combination bearing device comprises a rotor spindle, a casing, a magnetic bearing thrust disc, an axial electromagnetic bearing, a first thrust disc and a dynamic pressure gas thrust bearing; the casing is used for mounting the rotor spindle; the magnetic bearing thrust disc is used for supporting the middle of the rotor spindle; the axial electromagnetic bearing is used for controlling the magnetic bearing thrust disc to be kept in the suspension state; the first thrust disc is used for supporting the end part of the rotor spindle; the dynamic pressure gas thrust bearing is used for controlling the first thrustdisc to be kept in the suspension state; permanent magnets are fixedly connected with the dynamic pressure gas thrust bearing and the first thrust disc and are spiral; and the dynamic pressure gas thrust bearing and the first thrust disc repel mutually. The axial magnetic and gaseous combination bearing device can provide auxiliary support, also has a bearing protection function and can effectively improve the working performance of a magnetic bearing.