181results about How to "Low operating environment requirements" patented technology

The invention discloses a pyrotechnical hot-gas sol fire extinguishing agent and a preparation method thereof, and relates to the field of fire extinguishers. The pyrotechnical hot-gas sol fire extinguishing agent is prepared from 41 to 56 weight percent of first oxidant, 8 to 15 weight percent of second oxidant, 15 to 26 weight percent of burnable agent, 4 to 17 weight percent of adhesive and 2 to 22 weight percent of functional additive. The preparation method comprises the following steps of: mixing the oxidants, the burnable agent and the functional additive, then screening the mixture, stirring the mixture and the adhesive, mixing and stirring the mixture and organic solution, pressing the mixture and drying the mixture. The pyrotechnical hot-gas sol fire extinguishing agent has the characteristics of high fire extinguishing efficiency, simplified fire extinguishing composition, no influence of combustion reaction on external oxygen concentration change, no harm substance production to human bodies, animals and natural environments, safer operating mode, simpler and more convenient preparation method and the like, and is suitable for extinguishing fire of fuel and electrical equipment of automobile engine cabins, airplane fuel cabins, power distribution cabinets and the like.

The invention provides quick battery replacing equipment for a semi-automatic electric vehicle. The equipment is arranged between a battery cache rack and the electric vehicle and comprises an equipment moving mechanism 1, a battery lifting mechanism 2, a battery picking and placing mechanism 3, an automatic battery locking mechanism 4, a battery unlocking mechanism 5 and a battery guiding mechanism 6; the equipment moving mechanism 1 is used for integral movement of the replacing equipment on the ground, and the X direction of the replacing equipment is parallel to the moving direction of the replacing equipment; the battery lifting mechanism 2 is used for allowing a battery box to vertically move relative to the ground; the automatic battery locking mechanism 4 and the battery unlocking mechanism 5 are used for locking and unlocking the battery box; and the battery guiding mechanism 6 is a track when the battery box moves along the X direction. The quick battery replacing equipment is low in requirement for operating environment, short in construction period, economic and effective.

The invention relates to an active suspension system for a hydraulic type vehicle and belongs to the technique of vehicle chassis. The suspension system is mainly composed of a closed loop hydraulic system which is formed by serially connecting a hydraulic pump, a throttle valve, a two-position tee solenoid directional valve, a one-way throttle valve, a two-position two-way electromagnetic ball valve, two-position two-way proportional direction valves, a vibration reducing hydraulic cylinder, an overflow valve and an oil tank in turn, wherein the connecting ends of the two-position tee solenoid directional valve and the one-way throttle valve are simultaneously connected with a system oil-supply pressure detecting line; a control unit is respectively connected with an acceleration sensor, a displacement sensor, the two-position tee solenoid directional valve, the two-position two-way electromagnetic ball valve, a two-position two-way proportional direction valve A and a two-position two-way proportional direction valve B through wires. A corresponding active force is generated by the system, so that the active control and the continuous control are realized; the vibration caused by an uneven pavement and increasing/reducing of vehicle weight is relieved; the structure is simple and reasonable; a control device is low in demand on an operation environment; the reliability is high; the manufacturing cost is low; the use cost is low; the hydraulic oil consumption is reduced; the fuel economy is increased.

The one-dimensional displacement work table in nanometer level positioning precision includes a work table part, a position detecting part, and a driving part. The work table part includes coarse regulating work table, which is set between rolling tracks in vertical direction and has coarse displacement regulating mechanism; and fine regulating work table, which has pedestal set in the inner cavity of the coarse regulating work table via one connecting foldable flexible hinge support mechanism and has piezoelectric micro displacement unit as fine displacement regulating mechanism set between its pedestal and the coarse regulating work table. The driving part for the coarse regulating work table and the fine regulating work table is connected to the signal processing and controlling circuit. diffraction grating fixed on the work table is used as the measurement sensor for the displacement of the work table to form the displacement relevant detection signal.

The invention relates to the fields of photovoltaic or semiconductors, in particular to a method for inhibiting yellow smog during pickling of silicon materials. The main chemical components of the yellow smog are nitrogen oxides, such as nitric oxide, nitrogen monoxide, nitrogen dioxide and nitrogen tetroxide gas. The invention adopts the technical scheme that silicon material to be pickled is put in a mixed solution of mixed acid and strong oxidizer, wherein the mixed acid comprises hydrofluoric acid and nitric acid, or other inorganic acids or organic acids, and the strong oxidizer is a standard oxidant of which the electrode potential is higher than that of the nitric acid and can be hydrogen peroxide, potassium permanganate, manganese dioxide or ozone. By adopting the technical scheme, the quality for cleaning the silicon material cannot be influenced while the yellow smog is inhibited.

The invention relates to an ejection type ductile fiber strengthened cement base composite material and a preparation method thereof, and belongs to the technical field of construction material. The composite material formula comprises the following raw materials in parts by weight: 19 to 36 parts of cement, 1.9 to 5.7 parts of rubber powder, 11 to 40 parts of fly ash, 12 to 35 parts of river sand, 10 to 30 parts of stone, 7 to 18 parts of water, 1 to 2.2 parts of accelerator, 0.1 to 0.8 part of powder water reducer, 1 to 1.8 parts of redispersible latex powder, and 0.8 to 2 parts of PP fiber. The ejection type ductile PP fiber strengthened cement base composite material is prepared through following steps: primary stirring, secondary stirring, and final set. The invention provides a fiber strengthened cement base composited material, which has the advantages of low cost, simple processing, low requirements on processing technology and operation environment, and stable mechanical properties, and a preparation method thereof.

The invention discloses a keyboard-free input method and a device achieving same. According to the keyboard-free input method and the device achieving the same, detection devices wore on fingers of operators are used for detecting motions of corresponding fingers; the motions are keystroke simulated knocking motions; sequences and or assemblies of actions of different fingers are used for standing for different output orders; the output orders are used for simulating different keystroke output on a keyboard; motions of the fingers generate an output signal on a detection device; the output signal is transmitted to a computing unit; output instructions which are analyzed through the computing unit are transmitted to a receiving device. The device achieving the keyboard-free input method has the advantages of being simple in operational mode due to the fact that keyboard input is simulated through detection of motions of different fingers, achieving information input under any environment and any condition, being low in requirement for operative environment, not needing extra integrated projector, and increasing product-self portability and time endurance due to the fact that finger rings are charged through wireless charging technology.

The invention provides a non-radioactivity ionization source. The non-radioactivity ionization source comprises an ultraviolet source, a photoelectric cathode, a heating temperature controlling device and an ionization source cavity body. The photoelectric cathode comprises a substrate and a surface coating layer which is made of Au or Pd. According to the non-radioactivity ionization source, radioactive substances can be prevented from being used; only photoelectrons with low energy can be produced, detection can be well carried out under an anion mode, and detection can be carried out on explosive substances; the stability is high, and the non-radioactivity ionization source can work under the barometric pressure and high-temperature environments; the light receiving area is large, and the concentration of the photoelectrons is high and even; the structure is small and exquisite, manufacturing is easy, and the non-radioactivity ionization source can be well applied to the ionic migration spectrum industry.

The invention discloses a general colorimetric nucleic acid detection method based on a CRISPR/Cas system. The method mainly comprises the steps of (1) designing, transcribing and purifying crRNA; (2)labeling nanoparticles by using a universal probe; (3) preparing a Linker probe; (4) carrying out shearing reaction on the CRISPR/Cas system; and (5) carrying out a chromogenic reaction of the nanoparticles and reading a result. The invention further discloses a kit based on the method and application of the kit. The kit can realize naked eye room-temperature homogeneous detection, has the characteristics of strong specificity, high sensitivity, short detection time and the like, is low in cost and relatively strong in universality, and is beneficial to field inspection and popularization ofa primary medical system.

The invention discloses a comprehensive trough bridge, comprising a trough, grounding holes, bolt installation holes, bolt sleeves, connectors, bolts, cover plates, self-tapping wires and cables, the two ends of the trough The bolt installation holes are installed, the grounding hole is installed on one side of the bolt installation holes, the two trough bridges are connected by the connecting piece, and the connecting piece and the trough bridge Through the fixed connection of the bolts, the bolts are installed in the bolt installation holes, the bolt sleeves are installed on the bolts, the cover plate is installed on the top of the groove bridge, and the cover plate and the The trough bridge is fastened and connected by the self-tapping thread, and the cable is installed inside the trough bridge. The trough bridge has a simple and convenient installation process, and can play a role in both the horizontal bridge and the vertical surface. Very good firming effect.

The invention discloses a Word document image generating method and a system, which is applied for converting specified objects in a source file into images. The method comprises the steps of setting specifying marks in the source file for specifying the specified objects; integrally converting the whole page including the specified objects and the specifying marks in the source file into images and forming a temporary image according to the layout of the source file; and acquiring image data of the specified objects with the pixel points of the visualized specifying marks in the temporary image as the boundaries. The image data form the images of the specified objects. The system comprises a specifying mark generating module, an image generating module and a local image extracting module. The method and the system provided in the invention can convert any specified object in the source file into an image. Meanwhile, the resolution of the image can be set as required. The visual effects of the specified object image content are consistent with those of the specified object displayed in the source file.

The instant application provides a fluidic array device having an elastomeric body that provides easy fluidic control of the device. The elastomeric body may include plurality of intersecting row and column channels. Reactions may occur at the intersection spots formed by the intersecting channels. Pinching applied at suitable locations along the channels enables the channels to be opened or closed, and thus provides control of fluids pumped through the device. The surfaces of the channels and intersection spots may be engineered to have certain properties. In particular, the intersection spots may be nanoengineered to have surface properties differing from those of the channels, and thus reactions may be selectively controlled to occur only, or highly preferentially, in the intersection spots.

The invention discloses an optical wave-based transmission line equivalent salt deposit density sensor which comprises a hollow shell, wherein a monitoring device board is arranged in the hollow shell and comprises a microcontroller; a laser transmitting module, a laser receiving module, a communication module, a data storage module, a power module and a temperature and humidity acquisition module are respectively connected to the microcontroller; the temperature and humidity acquisition module stretches out of the hollow shell. The invention also discloses a method for measuring salt density on line. The wide distribution theory and light energy loss mechanism in dielectric optical waveguide are utilized, the optical power attenuation, environment temperature, relative humidity and other data of the optical sensor are measured, the insulator equivalent salt deposit density with high accuracy is deduced by utilizing an established neural network model, pollution of a field insulator on the transmission line can be accurately monitored in real time or timely on line, the pollution on the transmission line caused by the insulator is globally diagnosed and monitored, and early warning information is provided.

The invention discloses a method for simplifying relative gain matrix (RGA) calculation in a flexible alternating-current/direct-current electricity transmission system. The method comprises the following steps of: linearizing a differential algebra equation set in a flexible alternating-current/direct-current electricity transmission system model, obtaining a transfer function by a simplified matrix operation and performing the RGA calculation on the basis of the transfer function. In the method, although more linearized coefficient matrix elements are formed, the problem of complex matrix element expression caused by multiple times of matrix inversion is solved; and the method can be implemented by programs easily, the operating rate is improved, the technical cost and requirement on operating environment are reduced, and the method is suitable for high-dimension flexible alternating-current/direct-current electricity transmission system.

The invention discloses a high-speed hydraulic drill with two engines. The high-speed hydraulic drill comprises a vehicle body and a drill arm assembly, wherein two engines are installed on the vehicle body, the vehicle body is installed on a chassis, and a left crawler unit and a right crawler unit are arranged on the chassis side by side; and a direct-acting arm assembly is arranged at the front part of the vehicle body, is connected with the drill arm assembly, and can drive the drill arm assembly to swing left and right, swing back and forth or move up and down. According to the drill arm assembly, a plurality of drill rods can be effectively connected through coordination of a drill pipe storage mechanism, a drill rod gripping manipulator and a disconnection rod device, thereby prolonging the total length of the drill rod; and a drill arm assembly feeding mechanism adopts a wire rope structure, and the wire rope is strong in impact resistance, convenient to replace and maintain and low in cost. A drill stand adopts an integral structure and is made of aluminum alloy, so that the weight of the high-speed hydraulic drill can be greatly reduced, the energy consumption of the entire vehicle can be effectively reduced, and the center of gravity of the entire vehicle can be prevented from facing forwards.

The invention discloses a miRNA (micro ribonucleic acid) sequence for regulating and controlling organ development of brassica oleracea and a method for culturing a genetically-modified plant with large plant height and few branches by the aid of the sequence. The method comprises steps as follows: (1), extraction of total DNA (deoxyribonucleic acid) of the brassica oleracea; (2), amplification of a miRNA-1 precursor of the brassica oleracea; (3), construction and identification of miRNA-1 plant overexpression vector of the brassica oleracea; (4), genetic transformation; (5), resistance screening and molecular identification of miRNA-1 transgenic arabidopsis; (6), phenotypic analysis of the miRNA-1 overexpression transgenic arabidopsis. A result shows that the plant height of the genetically-modified plant is remarkably larger than that of a wild type plant; plant stem branches of the genetically-modified plant are remarkably fewer than those of the wild type plant. The miRNA sequence and the method for culturing the genetically-modified plant with large plant height and few branches by the aid of the sequence have great value in the aspects of disclosing a regulating and controlling mechanism of miRNA for organ development of the brassica oleracea and adopting genetic engineering methods to interfere with plant organ development process so as to culture crops or economic plants, meeting a breeding objective, with large plant height and few branches.

Disclosed is a submarine pipeline cutting robot. The submarine pipeline cutting robot is mainly used for cutting treatment of submarine damaged pipelines. The submarine pipeline cutting robot is composed of an operation carrier body, a pushing device, a cutting device and a clamping device. The carrier body comprises a carrier frame, a buoyancy block, a propeller, a five-degree-of-freedom manipulator, a lighting lamp, a camera pan-tilt and a hydraulic device. A pushing mechanism is connected to the carrier frame through a hydraulic cylinder and can slide along a rail on the frame. A set of cutting mechanism is arranged above the pushing device and can slide along a rail on the pushing device, so that the cutting purpose is achieved. The manipulator is located in the center of the pushing device. A manipulator base is connected with the pushing device through the hydraulic device. A manipulator clamp hand is connected with the pushing device through pin nails. The state of the manipulator is controlled through combined action of the hydraulic device, so that the purpose of holding the pipelines is achieved. According to the submarine pipeline cutting robot, the submarine pipelines which are located within 1000 meters of the underwater depth and have the size no more than 500 millimeters can be cut.

The invention discloses a method for identifying kinematic parameters of a SCARA robot, and belongs to the technical field of the SCARA robot. The method aims to solve the problem. The method for identifying the kinematic parameters of the SCARA robot comprises the following steps that a corresponding large arm angle and a corresponding small arm angle are obtained when a tail end calibration needle is aligned with each calibration plate; relational expressions of a coordinate origin to various calibration hole coordinate vectors are established; the relationship expressions of the coordinateorigin to various calibration hole coordinate vectors are converted into expressions of a first calibration hole coordinate to other calibration hole coordinate vectors; coordinate conversion is carried out on the expressions of the first calibration hole coordinate to other calibration hole coordinate vectors to obtain vector expressions after coordinate conversion, and the vector expressions after all coordinate conversion are formed into an equation set; and a coefficient matrix is acquired through the equation set, and SVD decomposition is carried out on the coefficient matrix to obtain alarge arm length, a small arm length and a small arm zero position. The method identifies the kinematic parameters of the SCARA robot, and has the advantages of simple and low-operating environment requirements, and low cost.