197results about How to "Solve the cost problem" patented technology

The invention relates to a field crop phenotypic information high-pass peer monitoring device. An electric mobile trolley (4) carrying a sensor / camera / measurer moves on a test area (3) for testing, and test data is processed and analyzed. The invention further relates to a monitoring method for the field crop phenotypic information high-pass peer monitoring device. Phenotypic information of field crops can be quickly acquired, and tested crops do not need to be moved during testing, so that the natural growth state of the crops is kept, and the influence on the crops in the test process is greatly reduced. Thus, on the one hand, the designed field crop phenotypic information high-pass peer monitoring device can remarkably promote molecular breeding of crops and development of plant functional genomics; and on the other hand, the device can guide people to optimize field management measures and crop planting structures.

The invention discloses a multifunctional detachable yacht of diving and sightseeing. A lower part of the yacht on water is provided with a rise-and-fall underwater sightseeing cabin; both ends of the underwater sightseeing cabin are provided with air circulation tubes; the middle of the air circulation tubes are provided with a rise-and-fall elevator; the circumference of the underwater sightseeing cabin is provided with a meshy diving chamber which is integrated into a whole with the underwater sightseeing cabin via a rise-and-fall positioning rod; a center on the bottom of the yacht on water is provided with a flute; the underwater sightseeing cabin is hung on a yacht lifting device; when a preset limitation is reached, the underwater sightseeing cabin and the meshy diving chamber are reset synchronously inside the flute. The invention solves the complication of the underwater sightseeing facility and the uncertainty of the safety terminal technique and gets rid of the dependency on high required technical facilities. The simple and scientific structure design guarantees safety and is easy for management and control. The multifunctional detachable yacht of diving and sightseeing has the advantages of low manufacture and operating cost and safe and comfortable riding.

The invention provides a real-time correlator based on an FPGA, GPU and CPU mixed architecture. The real-time correlator comprises a signal sampling module which is provided with N channels used for sampling N channels of signals; an FPGA-based signal preprocessing module which is arranged to carry out frequency mixing, low-pass filtering and packing sequentially on the signals sampled by the channels, a CPU-based unpacking module which is arranged to unpack the signals packed by the signal preprocessing module, a GPU-based signal processing and correlation operation module which is arranged to carry out multi-phase filtering, Fourier transform, correlation operation and integration sequentially on the N channels of unpacked signals, and a CPU-based control module which is arranged to control corresponding processing by the signal preprocessing module and the signal processing and correlation operation module on one hand and is arranged to store and display the signals after integration on the other hand. The barrier that large-scale capacity expansion cannot be carried out due to limited FPGA logic resources is overcome, and the problem that the computing ability of a CPU is limited is solved.

The invention discloses a visual intelligent numerical control system and a visual measuring method thereof. The system comprises a numerical control subsystem and a visual subsystem, wherein the numerical control subsystem and the visual subsystem are connected by a communication circuit, and realize the exchange of first primary data through configuration of transmission parameters and variable addresses; the visual subsystem is mounted on a robot movable part or in a fixed position of a working environment; data acquired by the visual subsystem is converted and conveyed to the numerical control subsystem through calibrating and configuring the specific parameters and quoting the first original data to realize the data conversion; and the numerical control subsystem automatically processes the same object data returned by multiple intelligent cameras to realize the data fusion. The system can be arranged on an industrial robot to form a visual intelligent robot; and an application control program of the robot can directly use original first state data and second conversion or fusion data to reduce the development workload needed to integrate the system.

The invention discloses a non-contact connecting device for transmitting underwater electric energy, which is composed of a socket and a plug, wherein electromagnetic induction coils are arranged in the socket and the plug, can be provided with a standard PM type magnetic core or a standard P type magnetic core and also can be provided with no magnetic cores; an inverter circuit in the socket converts direct current provided by an underwater base station into high-frequency alternating current to produce an alternating magnetic field with the same frequency; and a secondary coil in the socketproduces induced voltage which drives a load after passing through a received switching circuit in the plug. Compared with the traditional connector, the invention transmits electric energy between magnetic fields without direct contact between the plug and the socket, thus avoiding contact wear and greatly improving the reliability and the service life of equipment; in addition, the invention canalso avoid high expense caused by the fact that an underwater robot is used for plugging during underwater moist plugging of connectors.

The invention discloses a water / gas chamber energy storage system and relates to a physical electric energy storage system. The system comprises an air compressor pump group, a high-pressure gas chamber, a high-pressure water chamber, power generation / energy storage devices and a water storage chamber, wherein the high-pressure gas chamber and the high-pressure water chamber are independently arranged; the water storage chamber is communicated with atmosphere; the air compressor pump group is communicated with the high-pressure gas chamber through a first pipeline; a first valve is arranged on the first pipeline; the high-pressure gas chamber is communicated with the high-pressure water chamber through a second pipeline; a second valve is arranged on the second pipeline; and at least one power generation / energy storage device is arranged between the high-pressure water chamber and the water storage chamber. By the simple structure, the energy is converted, the construction cost of the system is reduced, and the problems that the traditional compressed air energy storage system is high in construction cost of equipment and complex in heat exchange systems are solved. In addition, due to the high-pressure gas chamber and the high-pressure water chamber which are independently arranged and communicated with each other, the output of gas pressure is controllable, the output of water pressure is controllable, and the output power of generators / motors is controllable.

The invention provides a coastal engineering silt physical model test bottom bed dynamic and comprehensive observation method. The method is characterized in that the method is involved in a total station, high-speed cameras, a mini-type soil pressure sensor and pore water pressure sensors, wherein the total station and the high-speed cameras are arranged on the outer side of a silt physical model test water tank and the mini-type soil pressure sensor and the pore water pressure sensors are arranged in a bottom bed in the silt physical model test water tank; the observation method includes a high-speed photographing method, a double-sensor synchronous point detection method and a total station section measurement method, the high-speed photographing method is used for photographing the bottom bed dynamic evolution and the wave time interval change from the glass side wall of the silt physical model test water tank, the double-sensor synchronous point detection method is used for separating dynamic pressure generated from waves through the pore water pressure sensors so as to acquire the actual change of the elevation of the bottom bed, the total station section measurement method includes the steps that after waves are generated and water is drained out slowly, the section is scanned in a scattered mode through the total station, so that final terrain is acquired and corrected. The method is suitable for being used in a water tank test and the dynamic evolution of the whole physical model test bottom bed is synchronously observed in real time.

The invention discloses an intelligent street lamp control system. The intelligent street lamp control system includes street lamp control terminals, street lamp monitoring sub-stations and a street lamp management center; the street lamp control terminals acquire the voltage, current and power information of street lamp nodes and upload the data to the street lamp monitoring sub-stations; the street lamp control terminals receive commands issued from the street lamp monitoring sub-stations and execute operation so as to realize switching control and brightness adjustment of street lamps; the street lamp control terminals analyze and process received data packets, and send and receive data through radio frequency transmission modules; and the street lamp monitoring sub-stations maintain the node information of all street lamp control terminals on roads where the street lamp monitoring sub-stations are located, and transmit corresponding data to the street lamp management center. According to the intelligent street lamp control system of the invention, a GPRS public wireless communication technology and short-distance wireless communication technology-combined scheme is adopted, and the advantages of the GPRS public wireless communication technology and the short-distance wireless communication technology can be combined, and therefore, the problem of high cost can be solved, the complexity of the system is reduced, and the intelligent street lamp control system is practical, is convenient to manage, assist in saving energy and can realize intelligent control.

The invention discloses a preparation method of multiple super-hydrophobic composite film layers on an aluminium alloy surface. According to the method, firstly, micro-arc oxidation treatment is performed on a pretreated aluminium alloy sample, and a porous micro-arc oxidation ceramic layer with the micron-scale surface roughness is obtained; the obtained ceramic layer is arranged in a mixed solution to have a hydrothermal reaction, hydrotalcite films are generated on the surface and inner walls of holes of the ceramic layer, and composite film layers adopting micron / nano binary coarse structures are constructed; low-surface-energy modification is performed on the composite film layers with stearic acid, and the multiple super-hydrophobic composite film layers are formed on the aluminium alloy surface finally. With the preparation method, the problems that the construction cost of the micron / nano binary coarse structures is high and the environment is polluted can be solved, and a novel technical means for constructing the micron / nano binary coarse structures on the aluminium alloy surface is provided, so that the multiple super-hydrophobic composite film layers are prepared.

The invention discloses an assembled type shear wall upper-layer and lower-layer combined connection structure which comprises an upper-layer prefabricated wall and a lower-layer prefabricated wall which are connected in a butted mode. When the upper-layer prefabricated wall and the lower-layer prefabricated wall are connected in the butted mode, a downward-protruding supporting structure of the upper-layer prefabricated wall is supported on the lower-layer prefabricated wall, structural longitudinal ribs of an embedded column of the upper-layer prefabricated wall and structural longitudinal ribs of an embedded column of the lower-layer prefabricated wall are opposite in a one-to-one mode and are connected mechanically, the structural longitudinal ribs I of the upper-layer prefabricated wall and the structural longitudinal ribs II of the lower-layer prefabricated wall are connected in an overlapped mode, and the upper-layer prefabricated wall and the lower-layer prefabricated wall are connected at the joint through a cast-in-place concrete structure. The combined connection way combined with the cast-in-place concrete structure is formed through mechanical connection, steel bar splicing and concrete spraying, the wall prefabrication technology is simpler, on-site construction is more convenient and rapider, and the workpiece manufacturing cost and the construction cost can be reduced.

The invention discloses a bus voltage measuring device based on a closed end of a single phase GIS tank. The bus voltage measuring device comprises a metal sensing wafer, a gas insulated combined electrical apparatus, a resistor, a cable, a voltage detector, and a voltage display. The gas insulated combined electrical apparatus comprises a high-voltage conductor with a cylindrical structure and an outer tank body. A part of the closed end of the outer tank body is cut to form the metal sensing wafer, before measuring the voltage, the metal sensing wafer is pasted to the incision of the closed end. One end of the resistor is connected to the metal sensing wafer, and the other end is connected to the closed end. One end of the cable is connected to the resistor, and the other end is connected to the voltage detector. The voltage display is connected to the voltage detector and is used for calculating and displaying the voltage value of the high-voltage conductor to the outer tank body. Therefore, by using the bus voltage measuring device provided by the invention, by measuring the voltage value of the resistor, the voltage value of the high-voltage conductor in the gas insulated combined electrical apparatus to the outer tank body can be calculated, and the purpose of monitoring the running state of a high voltage transmission line is achieved.

The invention discloses a supported bimetallic reforming catalyst and a preparation method and an application thereof. The catalyst is characterized in that active components metallic nickel and metallic cobalt are supported on an oxide carrier, wherein the mass ratio of the oxide carrier to metallic nickel to metallic cobalt is 1: 0.01-0.1: 0.01-0.1; and the oxide carrier is one of magnesium oxide, alumina, silica, cerium oxide and zirconia. The preparation method is characterized in that a deposition-precipitation method is employed, a precipitating agent is slowly added in a solution of the oxide carrier, metallic nickel and metallic cobalt, a reaction is carried out, and steps of pumping filtration, washing, drying and calcining are carried out to obtain the catalyst. The catalyst solves the problems of poor anti-carbon formation capability, complex preparation method and high catalyst cost in the prior art. The whole preparation has the advantages of simple process, convenient operation, and easy control of the synthesis condition, and the prepared catalyst has high catalytic activity and anti-carbon formation performance.

The invention discloses a reinforcement type prefabricated assembly type shear wall structure. Pre-stressed steel strands penetrate into an upper layer prefabricated wall and a lower layer prefabricated wall connected with the upper layer prefabricated wall adjacently. The invention further discloses a construction method of the reinforcement type prefabricated assembly type shear wall structure. According to the special construction process of a tooth space type connection structure of the assembly type shear wall, in the construction process of the upper layer prefabricated wall, the pre-stressed steel strands are adopted for connecting the adjacent upper layer prefabricated wall and the lower layer prefabricated wall, so that the upper layer prefabricated wall is stabilized on the lower layer prefabricated wall in the period that a concrete structure is cast, temporary supports do not need to be arranged any more, construction is convenient, performance is reliable, and the problems that the assembly type shear wall is difficult in connection construction on site and expensive in manufacturing cost are solved. Meanwhile, an existing connection structure is strengthened.

The invention relates to a fixed-point reflective sunlight-tracking system and belongs to the technical field of environment protection and energy saving. A plurality of plane mirrors are laid on a support frame of the plane mirrors. A heating film is arranged at the back part of each plane mirror so that each mirror can be heated independently. The small plane mirrors are combined to form a matrix. A mechanical device, which is driven by a motor and connected with a one-chip-microcomputer controller, is arranged on each plane mirror. The small plane mirrors in each line and each row of the matrix can be adjusted upwards and downwards and left wards and rightwards independently. Positioning sensors are installed in places in which projection is needed. The device enables a place in which sunlight is unavailable for a long time to obtain sufficient sunlight irradiation in sunny days and has the characteristics of being high in reflectivity, low-carbon and environment-friendly and convenient to maintain and use. The device is applicable to occasions such as family houses, factories, office buildings and agricultural sheds and the like so that the device is an energy-saving and safe and health product.

The invention discloses a device and method for preparing oxygen through three-tower low pressure adsorption and vacuum desorption. The device comprises a blast blower, a vacuum pump, a first adsorption tower, a second adsorption tower, a third adsorption tower, a first equalizer tank, a second equalizer tank and an oxygen buffer tank, wherein an inlet of the first adsorption tower is connected with the inlets of the second adsorption tower and the third adsorption tower and is connected to the blast blower and the vacuum pump; an outlet of the first adsorption tower is connected to the outlets of the second adsorption tower and the third adsorption tower and is connected to the oxygen buffer tank; and the first adsorption tower, the second adsorption tower and the third adsorption tower are connected with the first equalizer tank and the second equalizer tank through pipes. By adopting the device and the method, the output and the yield of the oxygen can be improved, and the problems that an existing VPSA oxygen production process is low in oxygen utilization rate, low in adsorbent utilization rate and high in equipment cost are solved.

The invention relates to an integrated water purification device and a water purification method. The device comprises a flocculation basin, an inclined plate sedimentation basin and a non-overflowing double-layered filter material filtering tank which are sequentially connected in series, wherein the filtering tank comprises a filter material layer, a supporting layer, a water distribution and gas distribution assembly and a water distribution water channel which is vertically arranged along the middle part of the filtering tank; the water distribution and gas distribution assembly comprises a water collection pipe row which is horizontally arranged, and a vertical pipe row which is vertically arranged; the upper ends of all vertical pipes are communicated with water collection pipes in the water collection pipe row and the lower ends of all the vertical pipes are communicated with the water distribution water channel; a water discharging hole is formed in the bottom of each water collection pipe, and an air exhausting hole and a washing air hole are sequentially formed in the middle part and the top of each water collection pipe; and an air inlet small hole is formed in the lower middle part of each vertical pope. According to the integrated water purification device and the water purification method, the problems that a filtering head of a double-layered filter material filtering tank is easy to block, a filter material cannot be washed, a mud ball is deposited, the filtering material is lost, the construction cost is high, the maintenance is complicated ant the like can be solved; the construction period is short, a land is saved and the construction cost is low; and the water supply requirements of countryside villages and towns, and industrial and mining enterprises, and beauty spots, which are far away from cities can be met.

The invention discloses a combined modular circulating water cultivating system, which comprises a belt type mechanical filter, a protein separator, a dripping box, a bio-filter, an ultraviolet disinfector and a central electronic controller, wherein the protein separator is connected with the belt type mechanical filter; the dripping box is connected with the protein separator; the bio-filter is connected with the dripping box; the ultraviolet disinfector is connected with the bio-filter; the belt type mechanical filter is used for pumping water into the protein separator through a water pump; the dripping box is arranged above the bio-filter; the highest water level of the protein separator is higher than the highest water level of the dripping box; the highest water level of the bio-filter is higher than the highest water level of the ultraviolet disinfector; and both the ultraviolet disinfector and the water pump are connected with the central electronic controller. According to the combined modular circulating water cultivating system, the defects of high manufacturing cost, large occupied space, complex pipeline connection, difficulty in maintaining, high running cost, poor treatment effect and the like caused by the complex and single equipment system design of the conventional circulating water cultivating system are overcome completely; and the combined modular circulating water cultivating system is more convenient and practicable.

The invention discloses a PCR-RFLP method for quickly detecting the single nucleotide polymorphism (SNP) of a goat Lhx3 gene. The genetic polymorphism is base polymorphism of T or C at a position-5557 of the goat Lhx3 gene. The method for detecting the SNP of the goat Lhx3 gene comprises the following steps of: performing PRC amplification on the goat Lhx3 gene by using the DNA of a goat genome to be detected which comprises the Lhx3 gene as a template and using a primer pair P as primers; and digesting a PCR amplification product by using a restriction enzyme, performing agarose gel electrophoresis on digested segments, and determining the SNP on the position-5557 of a goat according to the result of the agarose gel electrophoresis. The method is easy to operate, quick, low in cost, high in detection precision and convenient to popularize and use.

The invention provides a power transmission and transformation project cost calculation system and a cost calculation method based on a three-dimensional model. The method comprises the following steps of 1, acquiring power transmission and transformation project three-dimensional design result data from a three-dimensional design platform and converting the data into cost project data; 2, carrying out engineering project division on the cost engineering data; 3, calculating the engineering quantity through the construction cost engineering data; 4, calculating engineering cost according to the engineering quantity through a preset quota mode, and achieving engineering general budget compilation; and 5, compiling an engineering quantity list, a bidding limit price and a bidding quotation according to engineering quantity pricing specifications through a list mode. Through standardized management of quota and inventory valuation data, the problems that in the traditional cost compilation process, the engineering quantity is difficult to calculate, errors are prone to occurring in manual price assembly and adjustment, cost data cannot be traced back, and compilation results are difficult to share and apply are solved.

The invention relates to a method for producing foam glass mosaic based on boron sludge and pertains to the technical field of functional inorganic material. The invention is characterized in that the invention comprises the steps: waste glass is crushed, mixed with de-magging boron sludge according to ratio and grinded into green stock; the green stock is heated, quenched, dried and grinded into glass powder; certain amount of glass powder is mixed with vesicant, latent solvent and foam stabilizer to form foam glass layer material; certain amount of glass powder, pigment and complete fusion are mixed to form mosaic layer material; the mosaic layer material and the foam glass layer material are put into a die sequentially, pressed and molded and the foam glass mosaic is obtained after heating, foaming, foam stabilizing and annealing. The product of the invention is a bifunctional compound material, one layer of which is foam glass phase and other layer of which is mosaic phase, thus solving the problem that the foam glass can not be directly used as building material due to porosity and uneven color, moreover, the invention can reduce the cost of foam glass mosaic without wastes being discharged during the whole process, has greening and environment protective functions and pertains to environmental friendly technology.

The invention relates to a filling box with a bottom ventilation net and upper part exhaust holes and a manufacturing method of the filling box, and belongs to the field of building construction. The filling box (1) comprises side frame plates (2), stiffening inner plates (3), a top cover plate (4) and the ventilation net (5), wherein the four side frame plates (2) in end-to-end connection define a rectangular plane; more than one stiffening inner plate is at least arranged in each direction; the stiffening inner plates in different directions are in mutual orthogonality; at least one exhaust hole (6) is formed in the top cover plate; an exhaust net (7) is arranged in each exhaust hole; the top cover plate, the stiffening inner plates and the side plate plates made of nonmetallic materials form a box-shaped structure (8) with an open bottom surface together; the ventilation net is fixed on the bottom of the box-shaped structure in various connecting modes; and the ventilation net and the exhaust nets are made of metal or plastic materials. The filling box provided by the invention has the advantages that the production, the transportation and the installation are very convenient; the mechanical property is good; and a hollow floor slab formed by the product has high reliability, good earthquake-resistant performance and good anti-crack performance.

Intelligent control system is a distributed control system composed of one main controller and multiple branch controllers. Through comm. interface, the main controller is connected to each branch controller. In the system, reproducible energy is connected to storage battery. Through auxiliary charge power supply, storage battery is charged. Monitoring and sampling parameters such as each load, reproducible energy, current, voltage of storage battery, as well as through analyzing and processing, main controller outputs control signal to control charging and discharging storage battery. Through comm. interface, main controller controls branch controller so as to select electric supply or battery to supply power for loads automatically. Being connected to electric supply, the system reduces designed capacity of storage battery, uses reproducible energy farthest so as to raise service life of battery. The system is applicable to consumers and illumination system in DC low voltage.

The invention discloses a prestressed steel sheet strip and cable net structure. The prestressed steel sheet strip and cable net structure comprises steel sheet strips, bearing cables and a stressed ring beam. With the stressed ring beam as a frame, the steel sheet strips and the bearing cables form crossed longitude lines and latitude lines in the frame. The steel sheet strips and the bearing cables are connected through three-ply type joints, the steel sheet strips and the stressed ring beam are connected through fork lug type joints at supports, and the bearing cables and the stressed ring beam are connected through fork lug type joints at supports. Purlin braces are installed on the steel sheet strips in a bolting or welding mode so as to connect purlins, and a rigid roof can be conveniently installed on the purlins directly. According to the prestressed steel sheet strip and cable net structure, the use quantity of the cables and cable clamps is reduced, and the structure construction cost is effectively lowered; torsion or deflection is not likely to occur, and construction is convenient; besides, the upper rigid roof material can be easily installed after forming.

The invention relates to water permeable brick. The water permeable brick is prepared from the following components in parts by weight: 230 to 337 parts of quartz sand, 100 parts of iron tailings super-fine sand, 73 to 94 parts of silicate cement, 4 to 6 parts of epoxy resin GCCI35, 32 to 36 parts of water, 1.20 to 1.92 parts of curing agent GCCI37, 6 to 14 parts of mortar coagulating agent, 0.08 to 0.18 part of silane coupling agent KH550, 55 to 70 parts of air entraining agent, 11 to 13 parts of cementing agent, 1.5 to 2.1 parts of admixture, 340 to 531 parts of fine store aggregates, 1 to 4 parts of pigments, 9 to 13 parts of cement reinforcing agent and 12 to 14 parts of accelerating agent. The water permeable brick has the advantages that by using waste residue iron tailings as aggregates, the aggregates are different from common water-permeability concrete, and therefore, the aggregates are novel building materials; the water permeable brick is manufactured by developing and utilizing the iron tailings, so that the cost of the concrete can be greatly reduced, the problems of construction cost, and compressive strength, water permeability and surface blocking of the water permeable brick can be solved, and sustainable development is achieved.

The invention discloses an MATLAB-STM32 hybrid power test system which comprises an MATLAB numerical calculation unit, a data communication module, an STM32 embedded control module, a data acquisition module and a test unit, wherein the STM32 embedded control module comprises an STM32 embedded controller and a servo motor. The invention further discloses a test method of the MATLAB-STM32 hybrid power test system. An MATLAB (matrix laboratory) is creatively combined with the STM32 embedded controller, and the advantages of rich and flexible configuration, low power consumption, easiness in control and high control precision of the STM32 embedded controller are taken. Real-time bidirectional communication between the MATLAB and the STM32 embedded controller is realized, a numerical simulation test of an engineering structure MATLAB numerical calculation unit and a real object test of a test unit are cooperatively performed, and the problems of singleness, high cost, too high hybrid power test system manufacturing cost and application field limitation of an electro-hydraulic servo actuator of a traditional hybrid test system are solved.

The invention provides a saline-soil light curing agent. The total weight of the curing agent serves as a standard; the curing agent is prepared from 31.8%-35.3% of cement, 18.2%-25.6% of lime, 41.0%-45.6% of coal ash and 0.9%-1.6% of aluminum powder; the cement is portland cement; the coal ash is primary coal ash; the aluminum powder is aerated aluminum powder with the standard number of JC / T 407-2000. Meanwhile, the invention provides a method for treating saline soil with the saline-soil light curing agent. The saline-soil light curing agent and the method for treating the saline soil with the saline-soil light curing agent have the advantages that by means of the curing agent prepared with the two materials of the lime and the coal ash, the curing effect is more obvious, the effect is more stable, and the cost is low; the aluminum-powder adding aim is that a soil body is expanded, and the foaming effect is achieved; the strength is guaranteed; meanwhile, the volume is increased, and the cost is saved.

The invention discloses impermeable concrete and a proportioning method thereof. The impermeable concrete comprises cement; PII type Portland cement with strength of not lower than 42.5 grade; coarseaggregate containing 5-25 mm continuous graded broken stone; fine aggregate containing natural river sand; an admixture containing fly ash and mineral powder; and an additive, which comprises a waterreducing agent with a water reducing rate of not lower than 25% and a solid content of not lower than 20%; wherein the cement, the coarse aggregate, the fine aggregate, the admixture and the additiveare mixed and stirred under the action of water to form the impermeable concrete. The technical problems that a conventional impermeable concrete is large in gap, high in manufacturing cost and long in maintenance period due to the material ratio and is not suitable for the secondary lining waterproof requirement in tunnel engineering are solved.

The invention relates to a navigation method in the technical field of navigation, comprising the following steps of: A: judging whether a navigation device can apply GPS (Global Position System) satellite signal navigation or not; if so, executing a step B, and if not, executing a step C; B: applying a GPS satellite signal to navigate a user; and C: entering an inertial navigation state, calculating one inertial navigation speed of the user, and navigating the user at the inertial navigation speed according to a pre-mapped navigation path. The embodiment of the invention further provides a corresponding navigation device. The technical scheme of the invention can be used for navigation service when the GPS satellite signal cannot be used for navigation, and solve the problems of high manufacture cost, large size and inconvenient carrying of the traditional navigation device formed by special mechanical or electronic devices, such as an accelerometer, a gyroscope, and the like.

The invention relates to a stationary reflecting surface concentrating solar boiler which comprises a stationary reflecting curved surface (10) and a movable solar heat collector (30), wherein the stationary reflecting curved surface (10) can form a light spot (20) which can move along with the radiation angle of sunrays; the movable solar heat collector (30) is arranged in the light spot (20) and can move along with the light spot (20). The reflecting curved surface (10) is the curved surface formed by leading part of elliptic line of an oval to rotate around a short shaft. The movable solar heat collector (30) consists of at least one solar vacuum heat collecting pipe (31) and a light spot tracking motion mechanism (32). The stationary reflecting surface concentrating solar boiler does not need to track the sunrays through the motion of the reflecting surface and can realize the concentration of the sunrays by tracking the light spot formed by being reflected via the stationary special reflecting surface and concentrating the sunrays, thereby having high light-heat conversion efficiency, easy installation, use and maintenance, low manufacturing cost and a wide range of uses.

Disclosed is an interferon-α (IFN-α) fused protein having IFN-α fused to a cytoplasmic transduction peptide (CTP). The disclosure relates to a fused protein wherein a CTP, which binds well to cell-membrane barriers and enables translocation into the liver, is genetically fused to a human IFN-α, thereby enhancing the conjugation capacity of cell membranes and antiviral activity, inhibiting CTP transport into the cell nucleus, and enhancing the translocation and settlement of the fused protein into the liver and of transduction to the liver tissue. Accordingly, it is possible to develop protein-based medicines effective for preventing or treating various liver diseases associated with viral infection at low doses.