78results about How to "Reduce direct sunlight" patented technology

The invention discloses an agricultural planting greenhouse with an automatic cooling function, which comprises a greenhouse body composed of support plates fixedly connected to a ground and a greenhouse framework; the two vertical plates are symmetrically and fixedly connected to the ground, a hollow plate is fixedly connected to the upper ends of the vertical plates, air guide plates are uniformly distributed on and communicated with opposite side walls of the hollow plate, and one end, far away from the side wall of the hollow plate, of each air guide plate is fixedly connected with a sun-shading plate that is of hollow structure. According to the invention, when external sunlight irradiation temperature rises in the noon, a thermal expansion liquid expands rapidly, so that air is introduced into the sun-shading plates that stretch to shield greenhouse protective film, the direct irradiation of sunlight to the greenhouse is reduced, the rise range of the temperature in the greenhouse is narrowed; when the external sunlight irradiation temperature falls, the thermal expansion liquid contracts so that the air in the sun-shading plates contracts less, manually laying and removing sunshade net is prevented, and the workload of people is reduced.

The invention discloses an outdoor LED display module related to engineering components, comprising an LED light board, a light penetration cover and a back shell; wherein the LED light board is additionally provided with a plurality of LED; the facade of the LED light board is attached to the internal face of the light penetration cover; the back shell pushes against the backside of the LED light board; a gap is formed between the sides of the light penetration shell and the sides of the back shell, and waterproof glue is infiltrated into the gap. The outdoor LED display module related to engineering components is characterized in that: a light shield is attached to the outside of the light penetration cover, the positions on the light shield corresponding to the LED are provided with corresponding light transmission holes which are quadrate, rectangular, round or elliptic; a lucifuge margin is additionally arranged at the upper side of each line of the light transmission holes and a vertical slot is arranged between the adjacent light transmission holes in each line of the light transmission holes; the positions inside the light penetration cover corresponding to the LED are additionally provided with corresponding convex bodies which are matched and clamped with the light transmission holes of the light shield; the convex bodies corresponding to light transmission holes on the light shield are in a prismatic shape or a cylindrical shape. The outdoor LED display module related to engineering components has the advantages of high working reliability and strong practicality.

The invention relates to a tree planting method for cultivating fast growing tamarisk by breeding sterility varieties, and utilizing fertilizer and water sprout facilitation and trimming incubation technique, comprising the steps of, selecting dissociation single strain stock plant with no flower, with poor fertility, dense leaves and big leaf area coefficient, carrying out in field small sprout incubation, keeping soil moistening, thinly planting the grown sprouts, enhancing fertilizer and water management so as to accelerate growth, trimming side buds, strengthening top buds and fixing stems. The invention can be applied in heavy saline-alkali land.

The invention discloses a pet feeder. The pet feeder comprises a feeder body, wherein a closing cover plate is fixed to a clamping groove formed in the upper portion of the feeder body, an observing window is inlaid in the left side of the feeder body, an inner bin cover plate is connected to the right side of the feeder body through a thread, a sliding way fixing table is fixed to a clamping groove formed in the bottom of the feeder body, a sliding way is fixed to a clamping groove formed in the central position of the sliding way fixing table, a weight measurer is inlaid in the sliding way fixing table, a Bluetooth transmitter is fixed to the left side of the sliding way fixing table through a thread, a feeder inner bin is formed in the feeder body, a storage battery is inlaid on the right side of the feeder inner bin, a sliding way fixing pipe is fixed to the central position of the feeder inner bin through a thread, and a feed storage box is fixed above the feeder inner bin througha thread. In the pet feeder, the observing window is inlaid in the left side of the feeder body, the feed eating situation of a pet can be more clearly and intuitively observed, meanwhile observationis performed through the window, and feeds are prevented from being exposed in the sun.

The invention relates to an aerogel compound material, and belongs to the technical field of aerospace. The material is prepared by the following steps: preparing mixed sol from Al2O3 sol and SiO2 sol, compounding the mixed sol with a fiber supporting material, and preparing the Al2O3-SiO2 aerogel compound material. In the technical scheme, the Al2O3-SiO2 aerogel compound material has the advantages of high temperature resistance and light weight of aerogel and the advantages of good flexibility of graphene fibers, and can be repeatedly bent for use. The invention further relates to a flexiblestructure containing the aerogel compound structure, which can be extended into a corresponding size according to requirement to meet the requirement of corresponding scientific research and experiments. The invention also relates to application of the aerogel compound material and the flexible structure in the field of climate adjustment, the perpendicular incidence of sunlight on the ground surface can be reduced by blocking and reflecting the sunlight through the extended aerogel, and the aim of improving climate can be achieved.

The invention discloses a method for transplanting deciduous tree seedlings in summer. The method includes the steps that 1, the crowns of the deciduous tree seedlings are closely wrapped with non-woven cloth or color band cloth so that the transpiration of the crowns can be reduced in the transportation process and the situation that the seedlings die of dehydration can be prevented; 2, compound fertilizer with phosphorus as the main ingredient is mixed with soil, and pits are filled with the mixture to 60-70% and then filled with a layer of fine sand, wherein the thickness of the fine sand layer is 5 cm so that smooth water seepage and ventilation of the soil layer can be guaranteed; 3, a three-support type supporting method is adopted, wherein as a triangle is formed through the three-support method, the firmness is ensured to the maximum in the fixing method; 4, the seedlings are shaded in non-rainy seasons, a shade with the size equal to the breadth of the crowns can be used for shading the crowns in summer, and spraying is performed on the crowns once a week so that direct sunlight irradiated on the seedlings can be reduced, the effect of cooling the seedlings can be achieved, the moisturizing effect can be achieved through spraying on the crowns, and the survival rate of the seedlings can be increased.

The invention discloses an ecological protection structure of a rock slope and a construction method of the structure. According to the technical scheme, the structure comprises multiple semi-circulartires, multiple fixing rods and planting soil and green plants located in the semi-circular tires; side walls of one faces of the semi-circular tires are attached to the slope face, openings of the semi-circular tires are upward to form a groove, the planting soil and the green plants are arranged in the groove, one parts of the fixing rods are inserted in the slope face, the other parts of the fixing rods are leaked out of the slope face, fixing holes are formed in the side walls attached to the slope face, the fixing rods penetrate the fixing holes to fix the semi-circular tires to the slope face, waste semi-circular tires are used for forming a platform, for stopping gravels, on the slope face, and the protection effect is achieved; meanwhile, the plants grown in the semi-circular tires and can shelter sunlight, the direct shooting of sunlight to the slope face can be reduced, the air slake speed of the rock on the slope face can be reduced, the main structure of the structure is made of waste tires, the structure is economical and environment-friendly, and in addition, the construction method is easy to operate and efficient in construction.

The embodiment of the invention discloses a method and device for determining the regulation area and a method and device for regulating the light transmissivity, and belongs to the field of electronic equipment. The methods and devices are used for regulating the light transmissivity of only the perpendicular incidence part of strong light but not the non-perpendicular incidence part of the strong light, then perpendicular incidence on the eyes of a user from the strong light can be weakened, the eyes of the user can be protected, meanwhile, the user can see other areas in a view field clearly through the non-perpendicular incidence part of the strong light, and the user experience can be improved. The method for determining the regulation area comprises the specific steps of acquiring light source distance information, and determining the regulation area of a regulation unit according to the light source distance information and first information acquired in advance.

The invention relates to the technical field of construction, in particular to a sun shading, light reflecting and air guiding integrated building structure. The sun shading, light reflecting and air guiding integrated building structure comprises a building outer wall, a window mounted outer wall, an internal rotation high window upper occlusion piece, an internal rotation high window lower occlusion piece, internal rotation high window frames, internal rotation high window sashes, outdoor sun shading, light reflecting and air guiding plate, external rotation low window frames, an external rotation low window upper occlusion piece, an external rotation low window lower occlusion piece, external rotation low window sashes, an inclined ceiling, an internal rotation high window hinge, an external rotation low window hinge and an indoor light reflecting and air guiding plate. By utilizing a combining form of the outdoor sun shading, light reflecting and air guiding plate, the indoor light reflecting and air guiding plate, the inclined ceiling and vertical high and low windows, the effects of reducing indoor direct sunlight in the summer, increasing indoor natural ventilation and improving indoor illumination uniformity are achieved; and energy saving, emission reducing and environmental protection are achieved, the indoor environment comfort degree of a building is improved, and significant improving effects especially on ventilation and daylighting of building space with large depth are achieved.

The invention discloses a mounting bracket for an inverter of a photovoltaic power station, comprising a support plate, a cover bracket, a bracket, a locking bolt, a bracket plate, a heat dissipationmechanism and the like. By providing two H-shaped brackets at the lower end of the support plate, The support rod is inserted and fixed in the slot of the support plate by inserting the locking bolt into different positioning holes, so that the distance between the two supports can be adjusted, the inverter with different lengths can be installed and fixed conveniently, the support plate and the first mounting hole are arranged on the support, and the inverter has good mounting and fixing effect; By arranging a cover frame on the upper end of the support plate, the direct sunlight on the inverter can be reduced, the device life is prevented from being affected by too high an internal temperature of the inverter, and the device can play the role of dust prevention and rain prevention. By providing a heat dissipation mechanism at the lower end of the support plate, the heat dissipation mechanism can dissipate heat of the inverter when the temperature is too high, thereby avoiding the influence of the internal temperature of the inverter on the device life.

The invention discloses a bituminous pavement heating and milling machine. The heating and milling machine comprises a rack, a walking system, a first pavement heating wall, a second pavement heatingwall, a milling device and a secondary temperature rising heating wall, wherein the walking system is fixed to the lower portion of the rack and comprises a front axle and a rear axle, the first pavement heating wall is hinged to the front end of the rack, the second pavement heating wall is fixed to the rear portion of the front axle, and the milling device is fixed between the second pavement heating wall and the rear axle; the secondary temperature-rising heating wall is hinged to the rear portion of the rear axle and comprises a secondary temperature-rising main heating wall and pavement thermal connection auxiliary heating walls arranged on the two sides of the secondary temperature-rising main heating wall, a secondary temperature-rising channel is formed in the middle of the secondary temperature-rising main heating wall, and multiple sets of scarifying devices are fixed to the bottom of the secondary temperature-rising channel of the secondary temperature-rising main heating wall. The heating and milling machine is provided with a secondary temperature raising device, realizes simultaneous temperature raising inside and outside an asphalt mixture, is energy-saving and efficient and achieves good curve construction and climbing operation adaptability. The machine is environment-friendly and efficient; and the working environment is safer and more comfortable.

The invention discloses a dendrobium huoshanense seedling-raising bed. The seedling-raising bed comprises a seedling-raising bed body, and a seedling-raising pond recessed on the upper surface of theseedling-raising bed body, wherein the upper end of the seedling-raising bed body is provided with two sliding grooves arranged in the horizontal direction, and sliding blocks are connected in the sliding grooves in a slide manner. The invention also proposes a seedling-raising method based on the above-mentioned dendrobium huoshanense seedling-raising bed. The seedling-raising method comprises the following steps: S1, placing the seedling-raising bed in a well-ventilated and sunny greenhouse; and S2, laying a culture medium in the seedling-raising bed, wherein the culture medium is prepared by mixing stone, limestone, bark and sawdust in a ratio of 2:1:3:4. According to the dendrobium huoshanense seedling-raising bed, the inclination of strip-shaped shading sheets and the horizontal planecan be automatically adjusted according to strong sunlight, so that dendrobium huoshanense is always in a half-Yin and half-Yang growth environment, a shading net is not needed to manually cover, thelabor cost is reduced, dendrobium huoshanense can be automatically irrigated at night, and the cost of the used seedling-raising culture medium which is helpful to the growth of dendrobium huoshanense is low.

The invention relates to the technical field of construction, in particular to a sun shading, light reflecting and air guiding integrated building structure. The sun shading, light reflecting and air guiding integrated building structure comprises a building outer wall, a window mounted outer wall, an internal rotation high window upper occlusion piece, an internal rotation high window lower occlusion piece, internal rotation high window frames, internal rotation high window sashes, outdoor sun shading, light reflecting and air guiding plate, external rotation low window frames, an external rotation low window upper occlusion piece, an external rotation low window lower occlusion piece, external rotation low window sashes, an inclined ceiling, an internal rotation high window hinge, an external rotation low window hinge and an indoor light reflecting and air guiding plate. By utilizing a combining form of the outdoor sun shading, light reflecting and air guiding plate, the indoor light reflecting and air guiding plate, the inclined ceiling and vertical high and low windows, the effects of reducing indoor direct sunlight in the summer, increasing indoor natural ventilation and improving indoor illumination uniformity are achieved; and energy saving, emission reducing and environmental protection are achieved, the indoor environment comfort degree of a building is improved, and significant improving effects especially on ventilation and daylighting of building space with large depth are achieved.

The invention provides a film mulching cultivation method for potatoes. The film mulching cultivation method is characterized by including the following steps: (1) selecting and fertilizing a field, and performing soil preparation and ridging; (2) performing sowing; (3) simultaneously coating every two adjacent ridges by biodegradable weeding mulching films which are tightly attached to the corresponding ridge surfaces, and performing earthing-up between every two adjacent ridges by an earthing-up machine; (4), performing field management and harvesting. The film mulching cultivation method integrates film mulching with film-surface soil compaction and film-surface earthing-up, the planting process of the potatoes is simplified, and the working efficiency is greatly improved.

The invention discloses a remixer comprising a rack and a material receiving device. The material receiving device is hinged to the front portion of the rack; the material receiving device comprises afixing frame, a lifting frame, a hopper lifting oil cylinder, a hopper variable-amplitude oil cylinder, a hopper, a hopper supporting beam and a hopper steering cylinder. Hopper supporting wheels arefixedly arranged at the two ends of the hopper supporting beam correspondingly and are in transmission connection with the hopper supporting beam through the hopper steering cylinder. The lifting frame is fixedly arranged above the hopper supporting beam, two hoppers are hinged to the horizontal section of the lifting frame, the vertical section of the lifting frame is sleeved in the fixing frame, the hopper lifting oil cylinder is arranged between the vertical section of the lifting frame and the fixing frame, and the fixing frame is hinged to the rack through a hopper variable-amplitude oilcylinder. According to the remixer, pavement grading damage is effectively avoided, the posture can be adjusted in time, and good operation adaptability is achieved; the temperature inside and outside the asphalt mixture is increased simultaneously, and good reclaimed material temperature increasing and pavement thermal connection effects are achieved; centralized treatment of process flue gas isachieved, and environmental protection and high efficiency are achieved.

The invention discloses an external sunshade green planting ecological system with an adjustable angle. The external sunshade green planting ecological system comprises a supporting base, a cultivation box used for planting plants and an adjusting mechanism for adjusting the angle of the cultivation box; the adjusting mechanism is arranged on the supporting base, a steel frame is movably arranged on the supporting base, and connecting rods are arranged between the steel frame and the adjusting mechanism and are movably connected with the steel frame; the cultivation box is arranged on the steel frame, and the adjusting mechanism drives the connecting rods to do reciprocating motion. The angle of the steel frame can be adjusted within a certain range, light is directly irradiated to the cultivation box to achieve the good sunshade and heat insulation effects, heat input into a greenhouse through glass by solar radiation is reduced, the temperature at the top of the greenhouse can be effectively reduced by means of photosynthesis of green plants, indoor heat is reduced more effectively, heat conduction energy consumption is reduced, and the energy saving effect is improved.

The invention discloses a dizzy-proof disposal technique of an HID automobile lamp, which adopts the techniques as follows: surface disposals of the internal surface or external surface of the quartz pipe of a lamp head is carried out, so as to lead the quartz pipe to be half-transparent. The method of surface disposal can be a frosted finish process or a grinding process. Therefore, light beams pass through the half-transparent quartz pipe and are refracted outwards through multi-point along the multi-direction, the perpendicular incidence of light beam and the dizzy light of an HID automobile metal halide lamp are obviously reduced, and the drivers of opposite vehicles feel comfortable, thus having safer driving. Furthermore, after the surface disposal, the color rendering index of the HID automobile lamp is improved to a certain degree.

The invention belongs to the technical field of building automation equipment, and particularly relates to an automatic sunshading device for the top floor of a building. The automatic sunshading device includes a bracket fixedly mounted on a roof, a sunshading mechanism and a circuit control mechanism which are mounted at the top of the bracket, and an inflatable mechanism mounted on a vertical column of the bracket, the circuit control mechanism comprises a sealing box, the sealing box is internally divided into a left chamber and a right chamber by a piston, the left inner side wall of thesealing box is fixedly connected with one end of a telescopic rod, the other end of the telescopic rod is fixedly connected with the left side wall of the piston, a heat collector located outside thesealing box and a heat dissipation layer covering the surface of the inner wall of the left chamber of the sealing box are connected into a whole, the piston is fixedly connected with a moving contactcapable of conducting electricity in an inserted mode, the right inner side wall of the sealing box is fixedly connected with a static contact capable of conducting the electricity in an inserted mode, and the right end of the moving contact is matched with the left end of the static contact. When the direct sunlight temperature is very high in summer, the circuit control mechanism controls an air pump to inflate the sunshading mechanism and prop up a sunshade for sunshading, and the automatic sunshading device does not work when the temperature is low in winter.

The invention relates to the technical field of green buildings, in particular to a roof structure for a green building, which comprises a bottom plate, the top surface of the bottom plate is fixedly connected with a greening module and a shielding module, the shielding module comprises a supporting frame, and the bottom surface of the supporting frame is fixedly connected with four supporting columns fixedly connected with the top surface of the bottom plate. Four shielding mechanisms are arranged on the top face of the supporting frame at equal intervals, and solar cell panels are arranged on the tops of the shielding mechanisms. According to the device, the bottom surface of the collecting frame is fixedly connected with the lifting mechanism, the planting box can be lowered through the lifting mechanism, the solar cell panel is prevented from being shielded by green plants, strong sunlight is prevented from directly irradiating the green plants, use of the solar cell panel and growth of the green plants are facilitated, and the green plants can be moved upwards through the lifting mechanism according to needs; and the solar cell panel is covered by green plants, so that the ornamental value of the building roof can be improved.

The invention provides a combined three-dimensional planting and farming method for an ecological tea garden, which comprises the steps: S1, selecting a garden site; S2, establishing a tea garden; S3,interplanting kiwifruit; S4, interplanting clover; and S5, free-ranging native chicken. Tea leaves produced by the ecological planting-farming three-dimensional tea garden are better in freshness, lower in bitter taste and better in quality; and the total annual input cost per mu of the conventional standardized tea garden is low.

The invention discloses an ecological improving method of a saline-alkali soil vine crown artificial community, relates to an ecological improving method in saline-alkali soil, and aims at solving the problems in the existing saline-alkali soil improving method that the investment is high, the salinization aggravates after vegetation degradation, the soil is low in organic matter content, and the fertility is poor. The method comprises the steps of leveling the saline-alkali soil; 2, digging field planting furrows; 3, stacking up straw salt isolation layers at the bottoms of the field planting furrows; 4, filling nutrient soil; 5, transplanting perennial lianas; 6, building a liana climbing frame. According to the ecological improving method of the saline-alkali soil vine crown artificial community, by the utilization of the unique superiority that the lianas are small in floor area and the characteristic of the root system of the lianas, saline-alkali soil microzone soil is improved, a saline-alkali soil artificial community is built, and after the community is built, the crown closing role is played to reduce soil surface evaporation. Meanwhile, the withered branches and fallen leaves promote the organic matter to return to the field, and thus the saline-alkali soil is gradually improved instead of being directly improved. The ecological improving method of the saline-alkali soil vine crown artificial community is used for improvement of the saline-alkali soil.

The invention discloses a water saving ditch construction method for a sand land, and belongs to the technical field of agriculture. The method comprises the following steps: selecting a land, paying off, digging a water saving ditch, drilling permeation holes in soil on two sides of the water saving ditch, paving an isolation layer in the water saving ditch, digging a collecting gutter and a water storage pool, paving filter plates in the water saving ditch and the collecting gutter, finishing surface soil on two sides of the water saving ditch, and mulching films on the surface soil on two sides of the water saving ditch. According to the water saving ditch construction method, rainwater can be collected, and water permeated from the soil can be still collected; by the horizontal permeation holes, the salt content of the sand land is reduced; the bottom of the water saving ditch is mechanically reinforced, and the top of the water saving ditch adopts a slope, so that the stability of the water saving ditch is guaranteed; the filter plates and a non-woven filter material are paved on the water saving ditch, so that water can be filtered, direct solar radiation can be reduced, and evaporation can be reduced; the filter plates are covered with wheat straws, so that water evaporation is reduced, scouring to the water saving ditch due to the rainwater can be reduced, and the stability of the water saving ditch is guaranteed; and the slope is covered with a film, so that water evaporation can be reduced, and water retention, fertilizer retention and temperature rise are facilitated.

The invention discloses a passive type evaporative cooling air conditioning system for a dormitory apartment building. The air conditioning system comprises window type evaporative cooling air conditioners arranged on each unit window of the dormitory apartment building and an underground water storage tank buried under the ground of the dormitory apartment building, and further comprises a building top water storage pool and a solar power generation system which are arranged on the top of the dormitory apartment building. The underground water storage tank is connected with the building top water storage pool through a water transporting pipe, and a water pump is arranged on the water transporting pipe. Each window type evaporative cooling air conditioner is connected with a municipal tap water pipeline network through a water replenishing pipe, and each window type evaporative cooling air conditioner is connected with the underground water storage tank through a water releasing pipe. The water pump and each window type evaporative cooling air conditioner are connected with the solar power generation system correspondingly. By adoption of the passive type evaporative cooling air conditioning system for the dormitory apartment building, the recycling of natural energy and ladder-form utilization of the energy are achieved, and the air conditioning system has the characteristics of being energy-saving, environmentally friendly, economical, healthy and convenient.

An air suspension type manual meteorological umbrella comprises an inflation unit body. The inflation unit body comprises a bag skin and gas, wherein the bag skin is filled with the gas. At least one face of the inflation unit body is provided with a connector. The inflation unit body is connected through the connector, so that the meteorological umbrella is obtained. The inflation unit body is provided with a power source and a power drive part matched with the power source and used for adjusting the position of the inflation unit body. By the adoption of the meteorological umbrella, global warming can be stopped, and a glacier melting preventing function is achieved; the meteorological umbrella suspended in the stratosphere can effectively shade a thermal light source, and perpendicular incidence of the sunlight to the surface of the earth is reduced, so that solar thermal energy is effectively absorbed, the temperature of the surface of the earth is reduced, a glacier covered with the meteorological umbrella is prevented from melting, and the glacier melting speed is reduced.

The invention relates to a tree planting method for cultivating fast growing tamarisk by breeding sterility varieties, and utilizing fertilizer and water sprout facilitation and trimming incubation technique, comprising the steps of, selecting dissociation single strain stock plant with no flower, with poor fertility, dense leaves and big leaf area coefficient, carrying out in field small sprout incubation, keeping soil moistening, thinly planting the grown sprouts, enhancing fertilizer and water management so as to accelerate growth, trimming side buds, strengthening top buds and fixing stems. The invention can be applied in heavy saline-alkali land.

The invention discloses a crosslinked polyethylene carbon black cable material and a preparation method thereof. The crosslinked polyethylene carbon black cable material is prepared from the followingcomponents in parts by weight: 3 to 7 parts of montmorillonite, 1 to 2 parts of nanometer magnesia, 1 to 2 parts of nano silicon carbide, 1 to 3 parts of carbon black, 15 to 20 parts of a crosslinking agent, 70 to 80 parts of polyethylene and 10 to 20 parts of an antioxidant. Under the action of a direct current electric field, crosslinked polyethylene generates a large number of negative chargeswhich are from electron injection at a cathode, and the carbon black restrains charge particles in a cable to enable charges in the cable to be not accumulated, so that direct current can be prevented from breaking down the cable during transmission in the cable; moreover, the carbon black can be uniformly distributed in the cable; due to the nature, the carbon black can reflect most ultravioletrays to reduce the amount of the ultraviolet rays directly entering the cable. The nanometer magnesia and the nano silicon carbide can effectively improve the capacity of polyethylene of suppressing space charges, reduce the conductivity of the polyethylene and enhance the direct-current breakdown intensity of the polyethylene.

The invention discloses a thermal insulation system in a tunnel portal section using solar photovoltaic technology. The thermal insulation system comprises a pavement heating system and a power supply system, the pavement heating system is laid in the pavement of the tunnel portal section; the power supply system is connected with the pavement heating system, and used for providing electric energy for the pavement heating system; and the pavement heating system comprises heating cables and power cables, the heating cables are laid in pavement concrete, the power cables are laid in tunnel cable grooves, one ends of the power cables are connected with the heating cables, and the other ends of the power cables are connected with the power supply system. According to the thermal insulation system, the pavement heating system is arranged in a concrete pavement in the tunnel portal section, the tunnel portal in a cold area is heated by the heating cables, heat radiated by heating cables is transmitted to the surface of the structure through structure layers, and ice and snow are heated to be melted through sensible and latent heat methods; the thermal insulation system has a good heating effect, no erosion effect on the pavement, and the long service life; and the heating cables are buried under the pavement without occupying inner space of a tunnel.

The invention provides a cultivation method for mid-autumn crisp Chinese dates and relates to the field of fruit tree planting. The cultivation method for mid-autumn crisp Chinese dates comprises thefollowing steps: shielding date trees from April to October, wherein the shielding comprises: shielding rain from April to June, shielding the sun from July to August, and shielding rain from September to October. The cultivation method for mid-autumn crisp Chinese dates solves the problems that it is hard to bear fruits in a flowering phase in a plum rain season and hard to prevent and treat plant diseases and insect pests, the fruits are easily burned by high temperature in summer, the fruits are easy to crack in the ripening stage in case of rain and the like by shielding rain and sun for the data trees in different stages.

The invention provides a large-depth intelligent natural lighting light guide pipe regulating and controlling system suitable for an ice and snow field. The large-depth intelligent natural lighting light guide pipe regulating and controlling system comprises a natural lighting light guide pipe, a ventilating pipe, an LED lamp intelligent regulating and controlling device and a cap intelligent regulating and controlling device; a lamp regulating and controlling assembly is connected with an regulable and controllable LED lamp and a light sensing device, a lamp mounting assembly is used for fixedly arranging the lamp regulating and controlling assembly and the regulable and controllable LED lamp into the natural lighting light guide pipe; the cap intelligent regulating and controlling devicecomprises the ventilating pipe, a temperature sensing device, a cap regulating and controlling assembly and an adjustable and controllable cap; the cap regulating and controlling assembly is connected with the adjustable and controllable cap and the temperature sensing device; a cap mounting assembly is used for mounting and fixing the cap regulating and controlling assembly and the temperature sensing device; the natural lighting light guide pipe comprises a lighting device, a light guiding pipe and a diffuser; and the light guiding pipe is composed of an overreflection layer, a radiation-proof layer, an aluminum physical coating, a bonding layer, an anode alumina layer and an aluminum substrate which are sequentially connected from inside to outside.