970 results about "High standard" patented technology

The e-Mirrors system promotes a new standard of driving safety views device, which upgrade regular glass mirrors from optical reflective to optoelectronic. The e-Mirrors system overcomes lots problems of conventional mirrors: blind spots, poor rear view, poor object approaching view etc. Variety new design vehicles made in the century 21 need higher standard safety view devices to drive in more & more crowded traffic system since population is growing rapidly. Time to change! Trend to go optoelectronic safety view. The e-Mirrors system integrates ultra night vision multi micro CCD cameras, high definition low distortion Lens, multiple mini LCD panels, New concept design camera mounts, video processor (or switch) all in 1. Each component apply unique design, each view setting has its technique. Using e-Mirrors to fill the absence of central rear mirror in trucks and buses large vehicles, drivers will be stress free. Driving everyday becomes easy, safely and fun! After tested in many vehicles, this e-Mirrors system proofs the most creative and the state of the art safety device since the invention of airbag. Its application will significantly reduce the traffic accidents causing by driver's “did not see it” error every year. Airbags now are legal mandatory devices for motor vehicles. However, airbags deploy to reduce lost of lives only after the collision, not able to reduce traffic accidents. Wish this handy e-mirrors system, cost less than airbags, be the second mandatory device for all vehicles soon!

The present invention provides a fundus image classification method and device of retinopathy. The method comprises a step of obtaining the fundus image of an eye detection patient, a step of preprocessing the fundus image and obtaining a corresponding grey fundus image, a step of extracting a preset image characteristic in the grey fundus image, a step of analyzing the preset image characteristic according to the diabetic retinopathy classification model of the fundus image, and obtaining the classification result of the corresponding fundus image, a step of extracting the preset image characteristic in the preprocessed grey fundus image, and carrying out prediction classification on the above preset image characteristic through the diabetic retinopathy classification model established according to a support vector machine and a deep neural network so as to obtain a final classification result. The artificial participation is not needed in the whole process, the workload of doctors is reduced, the high standard requirement of the medical qualification level of the doctor is reduced, the accuracy of classification is improved, and the method and the device have great significance for specific applications and medical research.

The invention relates to a vehicle anti-impact alarm method and relative system, for alarming driver to avoid impact and accidence. The output of inverter power and one end of relay is connected with an output signal interface of an intelligent camera, the picture information collecting module, vehicle character extracting module, information analyzing module, vehicle position tracking module, ranging speed measuring module and anti-impact alarm module are embedded in the chip of the camera, while the intelligent camera via a mounting support is fixed in the front windscreen glass of cabin, and said six modules should started in serially to realize the alarm method.

A lens arrangement with an achromatic homogenizer and collimator for multiple LEDs. The lens arrangement combines the hemispherical emittance profiles from one or more LEDS into a collimated beam without chromatic aberration. The lens arrangement has one or more LEDs, a homogenizer, a solid lightpipe, an internal parabolic reflector, a retroreflector, and a refractor. The emittance profiles of the LEDs are distributed evenly over space and angle by multiple reflections inside a diffusely reflecting cavity of the homogenizer. The internal reflector has a numerical aperture of 1.0, which defines a hemispherical solid angle of collection within air. The retroreflector directs rays away from the LEDs. The retroreflection permits space for the electronics of high radiance LEDs. The refractor converts the retroreflector rays in a plurality of shapes. The lens is optimally designed for applications with high standards for color mixing, uniformity, and efficient conversion of electrical power into light.

The invention provides a polymer modified asphalt, and the weight of the components comprising as follows :45-55% matrix asphalt, 4 - 8% blend oil, 12 - 14% of SBS ,5-9 % APAO, 2-7% of High-temperature improvement and 15-20% filler. It also offers polymer modified asphalt, which made of waterproof membrane and the railway bridge, highway bridge deck waterproofing project applications. The invention of these waterproofing membrane have a high standard of waterproof function, it can withstand high intensity of railway bridge and particularly high stress dynamic load .It also have excellent performance on water-resistance, high and low temperature resistance, adhesion, crack resistance, fatigue resistance and other aspects .it can be used for railway bridge and the road deck waterproofing works.

A core-shell catalyst with controllable granularity and thickness of catalyzing layer and high active specific surface area and catalytic efficiency for fuel battery is prepared through preparing the nanoparticles of the metal with low standard electrode potential, and using it to displace out the metal with high standard electrode potential to cover on the surface of said nanoparticle.

A 3D printer device utilizing at least one Quantum Cascade Laser (QCL) image head having at least one beam focused in a focal plane of the device for building on a surface of the device a 3D model of a target object from a digital image. The inventive 3D printer is more compact in size due to the use of QCL image heads, which provides focused wavelengths of QCLs matching the absorption properties in plastics for more efficient absorption of the radiant energy. Each QCL channel power in the inventive 3D printer can be doubled by combining two lasers with a polarization beam splitter. The QCL image head is provided with Pulse Width Modulation (PWM) for compensating for imaging speed. The invention includes a method for scaling up the building speed of 3D printing regardless of detail level. The invention discloses an affordable 3D printer using QCL technology while maintaining high standards of resolution, use of quality materials, and rapid building speeds.

The invention relates to a production process of a high-purity graphite section and a sectorial columnar graphite section prepared by the process. The process comprises the following steps: milling, mixing kneading, rolling, re-milling, compression molding, roasting, dipping, re-roasting and dipping to the selected materials; placing the roasted carbon products in a closed graphite purification furnace; sequentially inletting inert gas, chlorine, Freon and tetrafluoroethane inert gas under corresponding temperature for graphitization purification. The process has the advantages of short roasting and graphitization time, high production efficiency and low energy consumption. The graphite section prepared by the process is characterized by high purity, high density, high intensity, good thermal shock resistance, easy precision finishing and extremely wide application. Moreover, the prepared sectorial columnar graphite section, which is easy to be spliced into cylindrical graphite, can avoid the generation of cracks owing to excessive temperature differentials between the exterior and the core of large-scaled sections, prolongs the service life of the products and meets the needs of the market on large-size and high-standard cylindrical graphite section.

This transformer test control device permits testing of an electrical transformer as installed on a power pole without connecting any high voltage of the power distribution line to the transformer, thereby significantly enhancing the safety of the lineman during the testing procedure. A test control device for controlling the testing of an electrical transformer combines a visual indicator acting as both a power-on indicator and a fuse tester, a voltmeter, a voltage adjustment control, an operator control switch and a fuse as well as terminals for connecting both to an alternating current electrical supply and to the terminals of the primary coil of a transformer to be tested. Additionally, the test control device includes terminals for connecting the device and a secondary circuit to selected output terminals of the secondary coil of the transformer and additional terminals for receiving and retaining the contact portions of voltmeter test probes. The test control device simplifies the transformer testing and aids the lineman in testing while maintaining high standards for safety practices and, especially, during adverse weather conditions. This device may be embodied to include a dedicated second voltmeter. The test control device may be powered by either normal 120 volt line voltage or the output of a power inverter connected to the electrical system of a truck or other motor vehicle in those areas without readily available 120 volt AC power.

The invention relates to a vehicle bias alarm method and relative system, for alarming driver to avoid bias and accidence. The output of inverter power and one end of relay is connected with an output signal interface of an intelligent camera, the picture information collecting module, channel mark line recognizing module, vehicle direction parameter evaluation module, vehicle position parameter evaluation module, channel width evaluation module and channel bias alarm module are embedded in the chip of the camera, while the intelligent camera via a mounting support is fixed in the front windscreen glass of cabin, and said six modules should started in serially to realize the alarm method.

The invention discloses a key distribution system and a key distribution method based on multiuser remote communication. Quantum key synchronization between each user terminal and a central management system is realized in a manner of carrying a key relay server by an aerial vehicle. Then the central management system distributes a session key to a user terminal which requires participation into communication in a quantum key encrypted session key manner. A data packet only requires session key encryption, thereby realizing a purpose of multi-user-terminal communication. The key distribution system and the key distribution method ensure absolute safety in multiple-party communication and prevent a high-standard requirement for a QKD system in a one-packet and one-key manner so that quantum encrypted communication is suitable for a large-scale multiple-party communication occasion. Furthermore, establishing of a quantum channel between each user terminal and the central management system is not required. Not only is a problem of quantum information attenuation in remote channel transmission settled, but also a problem of difficult quantum channel disposition is alleviated.

The invention discloses a construction process for a rock enlarged toe anchor pile foundation of an overhead power transmission line. The construction process comprises the following steps of: (1) measuring and positioning, namely measuring a tower foot position and removing a rock surface to determine a foundation bolt base point; (2) drilling, namely drilling a straight hole at the base point by using a tubular drill until the drilling is finished, and enlarging the bottom of the straight hole by replacing a deviation bit to form a taper hole, wherein the aperture and the depth of the straight hole are determined according to the external diameter and the length of an anchor rod; the taper angle is controlled by controlling the drill bit sinking and the deviation speed; the lower bottom surface of the taper hole is coincided with the bottom of the straight hole; the taper height is determined according to the actual demand; the taper hole is coaxial with the straight hole; the upper bottom of the taper hole is the section of the straight hole; the diameter of the straight hole is 8 to 10cm more than the external diameter of the anchor rod; and the taper angle is 30 to 40 degrees; (3) placing an anchor and grouting, namely placing the anchor rod into the hole to insert a foundation nut and a part of rod body into the taper hole and grouting a CGM30 grout into the hole until the grout reaches the rim of the hole, wherein the anchor rod and the straight hole are coaxial; and (4) pouring a bearing platform, namely pouring the anchor rod which is exposed out of the straight hole into the bearing platform by using high-standard cement, wherein the foundation nut and a foundation bolt are protruded out of the surface of the bearing platform.

The invention relates to a production method for a round steel, and specifically to a preparation method for a sulfur-containing ultra-low titanium high-standard bearing steel. The preparation method comprises a converter smelting procedure, an LF secondary refining procedure, a VD furnace vacuum refining procedure, a bloom continuous casting procedure, and a rolling procedure. Converter smelting is carried out by means of a double-slag process with an endpoint [C] controlled within a range of 0.15% to 0.25%; a double-slag stopping operation with a slag stopping ball and a sliding plate is performed during tapping; a slag skimming treatment is carried out before feeding into the LF; an operation of forming white slag as soon as possible is performed; an appropriate slag layer thickness is ensured before VD; VD vacuum breaking is followed by feeding of a Fe-S wire; an operation of remaining steel and slag is performed at the final stage of steel ladle casting; cold charging is adopted for rolling of a casting blank; and heating time is prolonged appropriately. The sulfur-containing ultra-low titanium high-standard bearing steel produced by means of the preparation method is good in machinability, and extremely high in purity, and has a titanium content controlled within 10 ppm and an oxygen content controlled within 6 ppm; moreover, the steel is good in castability, and has more than 10 continuous casting heats without feeding of a si-ba wire; therefore, high production efficiency is achieved.

The invention discloses a preparation process of low-shrinkage nylon cotton-like fabrics. The preparation process is characterized by comprising the following steps of gray fabric weaving, cold pad-batch process, desizing, dyeing, dehydrating and scutching, and shaping, wherein the cold dome treatment comprises the steps of impregnating gray fabrics in a cold dome padding liquid in a padding groove of a padder for padding, then rolling and sealing the gray fabrics, yarding sealed yardage rolls on a cold pad-batch frame for 20-24 hours, and slowly rotating the yardage rolls at a speed of 16-18m / min at the same time; the padding liquid in the padding groove is aqueous solution which is prepared by mixing H2O2, NaOH and a refining agent in a weight ratio of (9-11):20:2 and then adding deionized water the weight of which is 30-33 times the total weight of H2O2, NaOH and the refining agent into the mixture; and the refining agent is a refining agent TK-1. By virtue of the process, the surfaces of the fabrics are more uniform in coloring and are smoother, and warps and wefts are fully shrunk, so that the quality of the finished fabrics is improved, the warp and weft shrinkage of the fabrics can reach a high standard, and the size stability of the fabrics is good.

The invention relates to a high-polymer modified asphalt waterproof roll for roads and bridges. The high-polymer modified asphalt waterproof roll is manufactured in the way that a bank base layer (1) is used; modified asphalt coating and covering layers (2) and (3) are respectively bonded on the upper and lower surfaces of the bank base layer (1); an isolation layer (4) covers the upper surface of the modified asphalt coating and covering layer (2); an isolation layer (5) covers the lower surface of the modified asphalt coating and covering layer (3); each modified asphalt coating and covering layer is prepared from the following raw materials in percentage by mass: 38 to 44 percent of 90# asphalt, 11 to 17 percent of 200# asphalt, 5 to 8 percent of polypropylene, 1 to 3 percent of SBS, 4 to 6 percent of APAO, 2 to 3 percent of high-temperature modifiers, 15 to 17 percent of modification powder and 10 to 15 percent of filling materials. The product of the high-polymer modified asphalt waterproof roll has the advantages that the high-temperature resistant and low-temperature cracking resistant capability is high; the anti-aging capability is high; the joint deformation capability is high; the high-standard waterproof function is provided; meanwhile, the construction performance of the waterproof roll for roads and bridges is improved; the high-polymer modified asphalt waterproof roll is mainly used for pavement of cast asphalt concrete mixtures.

The invention relates to the field of farmland construction and land consolidation, in particular to a farmland construction area determining method. The method comprises steps of selecting a study area, and performing meshing, mesh unit encoding and data preprocessing on the study area; calculating judgment indexes of comprehensive quality of farmland in a mesh environment; performing normalization processing on the judgment indexes, and calculating and judging weights of the indexes relative to the comprehensive quality of the farmland; evaluating the comprehensive quality of the farmland with a multifactor comprehensive evaluation method, and dividing a high-standard farmland construction area with a natural discontinuity point grading method. Compared with the farmland construction area dividing method based on farmland map spots or administrative regions in the prior art, the farmland construction area determining method evaluates the farmland more scientifically and is more objective and obtains more accurate results through numerical evaluation based on the judgment indexes, high-standard farmland can be obtained through farmland construction, and the construction cost is reduced.

The invention relates the manufacturing technique of all-cotton transfer printing paper. The technology comprises the following steps: treating roller, engraving activation according to image processing system signal, checking image, raw-paper halftone etching basecoat technology, drying with hot wind, starching the halftone etching to catalyze isolated layer, drying with double-layer hot wind, screen printing color register color printing, and all-cotton bat printing. The raw-paper halftone etching basecoat technology, starching the halftone etching to catalyze isolated layer, drying with double-layer hot wind, and screen printing color register color printing are new additional procedure. The all-cotton transfer printing paper made with the method has better bat printing effect. The method has the advantages of easy operation, high standard-piece rate, low cost, environmental protection and saving energy.

The invention relates to a manufacturing method of a crepe paper product. A method for producing a paper towel comprises the following steps of: selecting 70-80 % of bleached softwood pulp and 20-30 % of straw pulp as raw materials; pulping the pulp by using a pulper, after beating the pulp by using a disc mill and adding auxiliary materials of an expanding agent, a softening agent and a wet strength agent to the pulp, molding, dehydrating and squeezing the pulp by using a Harper fourdrinier system; creping a wet paper sheet in a creping cylinder when the dryness of the wet paper sheet is 30-45 %, wherein an angle between a creping knife and the tangential line of a cylinder surface is 20-30 degrees, the cutting edge angle of a scraping knife sticking to the cylinder surface is 60-85 degrees, and the speed ratio of the creping cylinder and a heating cylinder is 1.15-1.18:1; and then drying the wet paper sheet by using the heating cylinder; and winding, rewinding and slicing the paper sheet so as to obtain a finished product. The method for producing the paper towel, provided by the invention, has the advantages as follows: through fiber variety and proportion selection and through the adoption of a wet creping process, the paper towel are produced; and the produced the paper towel has the advantages of tensile strength and proper air permeability; and the strength, wet strength, hydrophobicity, air permeability, flexibility and the like of the paper towel all reach higher standards; therefore, high quality and low cost are achieved.

The invention belongs to the technical fields of metering and measuring an ultramicro force value and relates to a measuring device for an ultramicro force value of micro-Newton / nano-Newton grade which includes a lever; one end of the lever is a bearing disk and a spring is hung at the other end; the other end of the spring is fixedly provided with an inner electrode; the upper part of the inner electrode is provided with a mechanism which limits the inner electrode to move outside the moving freedom of z-axis; the lower part of the inner electrode is a cylinder; an outer electrode is sheathed on the outer surface at the lower part of the inner electrode; the outer electrode is a cylinder which is coaxial with the cylinder at the lower part of the inner electrode; the inner diameter of the outer electrode is larger than the outer diameter of the cylinder at the lower part of the inner electrode; the other end of the outer electrode is provided with a laser interferometer used for measuring the displacement of the inner electrode. The invention simultaneously provides an ultramicro force value tracing method. The precision of the measuring device provided by the invention can meet the demand of the highest standard of the force value; the measuring device can be used for calibrating a probe force measuring sensor, a surface tension sensor and an ultramicro force detector in the manufacture technologies like a micro-electromechanical system, a biochip, etc.

The invention relates to a high standard-definition video-audio IO card with an internal switching function. The high standard-definition video-audio IO card comprises a plurality of video-audio input ports and a plurality of video-audio output ports, wherein each input port is connected with a respective interface conversion chip of SDI input signals, the video-audio output ports are connected with respective SDI output driving chips, and the interface conversion chip of each SDI input signal and the SDI output driving chips are connected with a field programmable logic chip. Through the configuration of an internal switching mode, the high standard-definition video-audio IO card can achieve simultaneous acquisition of various videos with different resolution ratios on the videos input from the outside in one or more forms, achieve simultaneous broadcasting of various videos with different resolution ratios on the videos output by software in one or more forms, achieve aliasing of a plurality of paths of the videos input from the outside and a plurality of paths of the videos broadcast by the software, and achieve the functions of switching the videos and the audios input from the outside and the videos and the audios output by the software and the like. The high standard-definition video-audio IO card can be widely used in various types of devices of broadcasting television high standard-definition production and broadcasting processes.

The invention discloses a manufacturing method of a transparent conducting film and the transparent conducting film. The manufacturing method includes the following steps that (1) a transparent base is selected, and the surface of the transparent base material is washed; (2) nano silver wire dispersion liquid with the concentration being 0.01-10 mg / mL is prepared; (3) the nano silver wire dispersion liquid prepared in the step (2) is sprayed on the surface of the transparent base material; (4) the nano silver wire dispersion liquid is dried to obtain a nano sliver wire material layer overlaid on the surface of the transparent base material; (5) radio-frequency tubes with the power being 10-5000 W are used for generating plasmas, and plasma treatment is conducted on the nano silver wire material layer for 30 seconds to 30 minutes. According to the manufacturing method, a specific plasma treatment mode is used for treating the nano silver wire material layer, and therefore the electrical conductivity of the transparent conducing film can be improved. Meanwhile, according to the manufacturing method, the washing purification process of nano silver wire raw materials is omitted, high-standard transparent base materials are not needed, therefore, the technology is simple, and the cost is lower.

The invention relates to a preparation technology of aluminum-matrix in-situ composites, in particular to a preparation method of light-weight high-strength aluminum-matrix in-situ composites used in cable testing bridges. The method includes the following specific steps: alloy is melted according to requirements of mixture ratios of components of aluminium alloy 6061, 6063 or 6070; mischmetal with the mass of 0.2 to 0.4 percent of that of the aluminium alloy is added and reaction materials of the composites are added through a dusting device for reaction synthesis of particle reinforced aluminum-matrix composites; chemical constituents are adjusted on grounds of demand; Al-5Ti-1B wires with the mass of 0.15 to 0.20 percent of that of the aluminium alloy are added for refining treatment and then semicontinuous casting; ingots are carried out homogenization treatment; and the testing bridges are obtained through the technologies of hot extrusion and hot treatment. The invention is simple and convenient in technology and controllable in constitution of the composites and the combination property of the bridges of the particle reinforced aluminum-matrix composites is obviously improved, thus meeting requirements of more high-standard construction.

The invention provides a construction steel vertical post node structure, belonging to the field of construction structures. The structure comprises an upper vertical post and a lower vertical post which have the same cross section shape, and a plurality of connecting plates which are arranged between inner cavities of the upper vertical post and the lower vertical post, wherein the connecting plates are adhered on walls of the inner cavities of the upper vertical post and the lower vertical post for a circle, and are fixedly connected with the upper vertical post and the lower vertical post through fasteners. In the invention, the structure is screwed and fixed with the upper vertical post and the lower vertical post by an upper connecting flake, a lower connecting flake and the connecting plates, the construction steel vertical post node structure has high standard degree and good interconvertibility, is convenient to transport and assemble, and can improve the construction efficiency.

The invention discloses a high-weatherability water-borne printing ink for PVC wallpaper. The printing ink comprises the following components by mass: 20 to 50% of waterborne color paste, 30 to 60% of waterborne resin emulsion, 1 to 5% of a wear-resistant scraping-resistant agent, 0.5 to 3% of a film-forming aid, 0.2 to 2% of a leveling agent, 0.1 to 0.5% of an antifoaming agent, 0.1% of antiseptic and 5 to 20% of purified water. According to the invention, modified magnesium-aluminum hydrotalcite capable of effectively absorbing ultraviolet light and infrared light in sunlightis introduced, so the ageing speed of the printing ink is decreased, weatherability of a printed pattern of the PVC wallpaper is improved, and the service life of the wallpaper is prolonged; meanwhile, high-weather-resistance-grade pigment capable of tolerating waterborne resin emulsion with a high temperature of more than 200 DEG C is utilized, so the printing ink for the PVC wallpaper has substantially improved temperature resistance and weatherability; and even under the conditions of high temperature and solarization, the printing ink can well maintain original characteristics and perfectly meets high-standard requirements on waterborne printing ink for the PVC wallpaper.

The invention relates to a systematic detection method for an anti-cracking performance of concrete and in particular relates to a systematic detection method for comprehensively judging the anti-cracking performance of the concrete by detecting an anti-cracking safety coefficient, a shrinkage strain amount, a strength and elastic modulus development curve, a strain concentration point and the restriction degree. The detection method comprises the following steps of detecting a temperature strain parameter of the concrete to judge the anti-cracking safety coefficient of the concrete; detecting a shrinkage strain value of the concrete to judge the shrinkage strain amount of the concrete; detecting the maturity of the concrete to construct the strength and the elastic modulus development curve; simulating and calculating the strain concentration point of the concrete through a central processing unit; detecting a friction coefficient of a concrete entity model to judge the restriction degree of the concrete; comprehensively evaluating the anti-cracking performance of the concrete according to the steps. According to the systematic detection method, the anti-cracking performance of the concrete can be effectively detected, and the manufacturing quality of the concrete is improved, so that the concrete can meet a requirement of a high-standard submarine construction environment.

The invention relates to a cast-in-place support platform for bridge cast-in-place construction, and the platform is characterized by consisting of a movable seat, a hydraulic jack, a steel pipe concrete vertical column, stable tie bars on a longitudinal surface, a horizontal surface and a plane, a spherical hinge support, a support primary beam, a support secondary beam, a reinforcing diagonal rod, a distribution rib, a large steel mould at the bottom of the beam, a support and pier top fixed connecting system, a pier top crossbeam, a partial template of a pier tope, a pier top large tonnage hydraulic jack, an undercarriage hoist or a chain block in the beam, an undercarriage steel cable and the like; all the components are spliced detachably and interchangeably; the connection of all the components is mainly realized through bolts; and the cast-in-place construction of a bridge can be carried out after a cast-in-place support is assembled according to the actual situation on the site and the beam body template is arranged on the support. The universal bridge cast-in-place support has the biggest characteristics of good practicality, high standard degree, high load bearing capability of the support system, low requirement on the load bearing capability of a foundation, settlement monitoring and automatic compensation functions; and is applicable to the cast-in-place construction of simple support beams, continuous beams and arch bridges; has few assembled and disassembled parts and no components with large sizes after being disassembled, is convenient to transport, is the support equipment for bridge cast-in-place construction with the highest standardization level and the best universality so far, and can significantly shorten the construction period and save the cost.

The invention provides an interactive television play control platform of a smart power grid. The interactive television play control platform adopts and follows a basic framework and standard of a new generation of video on demand service. The interactive television play control platform comprises a video data service operating server, a video data cloud computing storage server and a service data and user management server, wherein the video data service operating server is used for on-demand service authentication and charging, service management operation, and management of conversations, a video server and network resources in the on-demand service process; the video data cloud computing storage server is connected with the video data service operating server and is used for storing media and service data and realizing virtualization of computing resources; the service data and user management server is respectively connected with the video data service operating server and the video data cloud computing storage server and is used for managing charging, accounting and business at the back stage. According to the interactive television play control platform, power FTTH (Fiber To The Home) of a user side of the smart power grid and organic fusion of the power grid, a telecommunication network and a broadcast network can be realized, and multiple services, such as high-definition, high-standard and multi-format live broadcast and video on demand as well as time shifting and playback of a live program are provided for power consumers.

The invention discloses construction equipment and a construction process for a double block type unballasted track, belonging to the railway track construction field. The construction equipment comprises combined type track panels which are matched to use, a proper motion type paver, a multifunctional electric control lifting device, a movable type mechanical sleeper distribution assembly platform and a shunting swing bridge; under the conditions of meeting the construction quality and the construction efficiency, the construction equipment has the advantages of small number of device categories, simple equipment operation, high construction efficiency and low cost of the outfit. The construction process comprise the following steps: the transverse template mounting, the sleeper distribution and the track panel assembly, the coarse adjustment of track panels, the track bed reinforcing fabric seizing and the grounding welding, the connection and the accurate adjustment of the track panels, the vertical template mounting, the track bed concrete pouring and the surface finishing and forming, the curing and the track panel disassembly, reentering the circle; the process has the advantages of simple process and fast speed; therefore, the invention can completely meet requirements of high standard, high accuracy and high efficiency in the construction of the unballasted track.

The invention relates to a construction method of floating floor. The method is characterized by giving detailed description of room floating floor construction and quality control in rooms of high-level acoustic technology requirements, and controlling room acoustic technology requirements of rooms such as a studio, a recording room, a control room, a dubbing studio and a standard viewing room; for the floating floor, elastic damping cushion blocks are arranged on a structural layer, glass fiber is filled in the cushion blocks to absorb shock waves or sound waves, lumber-core boards is arranged on the elastic damping cushion blocks, a waterproof layer is made, steel bars are banded and concrete is poured and firmed by ramming to form a topping, and space between the two layers of structures is made overhead by the elastic damping cushion blocks, thus noise index requirements of transmitting vibration and sound outside the room to the acoustic technology room by the structures are achieved.

An in-situ self-generated high damping TiB2 / Al composite material and its preparation are disclosed. It consists of Si 4 - 13wt%, Cu 0 - 8wt%, Mg 0 - 1.3wt%, Mn 0 - 0.9wt%, TiB2 0.1 - 20wt%, and balanced of Al. It is prepared by salts reaction, which includes: melting Al ingots, keeping temperature and adding mixture of dry K2TiF6 and KBF4 salts, stirring and taking out mixed salt product when reaction ends up, adding Si, and Cu, Mg, Mn or one or two of them to regulate chemical constituent, settling, and casting into ingots to obtain the high damping TiB2 / Al material. Granules of the said material have clean surface with good binding effect with Al substrate surface. Its damping at normal temperature reaches high standard, so that it can be used in development of structure-functional materials.