17 results about "Warm season" patented technology

Methods for controlling and / or suppressing Poa annua (annual bluegrass) in a stand of warm season turfgrass are provided. In certain aspects, the methods may include contacting a stand of warm season turfgrass comprising Poa annua with an herbicidally effective amount of thiencarbazone-methyl when the Poa annua is in an early post-emergence growth state or during an early post-emergence period of time.

The invention provides a breeding house automatic control ventilation system and a breeding house, the breeding house automatic control ventilation system comprises an air bellow and a control module, the air bellow is arranged in the upper space of the breeding house and is provided with a first air port and a second air port, the first air port is arranged in the side wall of the air bellow and is used for blowing air in the direction away from animals, and the second air port is arranged in the side wall of the air bellow; the second air opening is formed in the bottom wall of the air bellow and can blow air towards the animal body surfaces in the breeding house; the control module is in communication connection with the air bellow and can control opening or closing of the first air opening and the second air opening based on the current season. Therefore, the second air port can be closed to avoid formation of body surface wind and animal cold stress in the season with low air temperature, and the second air port can be opened to provide body surface wind and avoid animal heat stress in the season with high air temperature, so that the body surface comfort of the animal is further improved, the possibility that the animal gets ill is reduced, and the animal quality is improved. And large-scale economic loss of the farm is also avoided.

Methods for controlling and / or suppressing Poa annua (annual bluegrass) in a stand of warm season turfgrass are provided. In certain aspects, the methods may include contacting a stand of warm season turfgrass comprising Poa annua with an herbicidally effective amount of thiencarbazone-methyl when the Poa annua is in an early post-emergence growth state or during an early post-emergence period of time.

The invention discloses an intelligent ventilation and temperature control system and method for a driven-type pipe pile in a permafrost region, the intelligent ventilation and temperature control system comprises a low-temperature air conveying unit, an exhaust unit and an automatic intelligent control unit, and the automatic intelligent control unit controls the low-temperature air conveying unit to convey cold air into the pipe pile; the exhaust unit exhausts hot air in the pipe pile, and cold and hot alternate circulation of outside air and air in the pipe pile is achieved. According to the system, through an intelligent cold / warm season regulation and control mechanism, the thermal erosion process of a pile-soil interface is blocked in a low-energy-consumption, high-efficiency and high-environment-friendly mode, the thermal stability of a permafrost foundation around the pile is maintained, the bearing performance of a foundation structure is enhanced, and therefore long-term safe and stable operation of foundation engineering in the cold region is guaranteed.

The invention discloses a construction method for planting a sports lawn in the southern region in winter, and belongs to the technical field of sports lawns.The construction method comprises the following steps that S1, warm-season grass is laid and planted in winter, specifically, after a root system layer is finely leveled, grass skins or grass stems of the warm-season grass are laid and planted, and sand with the thickness of 5-6 mm is covered; s2, warm-season grass maintenance management: according to the survival condition of the warm-season grass, gradually widening the watering interval time, prolonging the watering duration of each group each time, and carrying out the next process after the warm-season grass turns green; s3, the warm-season grass is trimmed by a hob grass mower until the height of the grass is not more than 15 mm; s4, sowing cold-season grass; s5, covering non-woven fabric; s6, performing maintenance management on the cold-season grass; and S7, carrying out grass conversion in cold and warm seasons. The problem that a lawn is large in color difference is solved, and the landscape effect of a sports field is improved. The effect of converting cold-season and warm-season mixed grass into warm-season grass is guaranteed, the bald phenomenon is avoided, large-area reseeding or re-grass planting is not needed, and the engineering risk is reduced.

The application discloses a plateau permafrost area controllable cold region maintaining device, relates to the roadbed maintenance technical field of plateau permafrost area, and comprises a hot rod body, a protection structure is installed at the top of the hot rod body, a transmission mechanism is installed at the top of the protection structure, an environment sensing machine is installed at the top of the transmission mechanism, and a damping mechanism is installed at the top of the transmission mechanism and at the side of the environment sensing machine, the cooperation of the environment sensing machine, the protection structure and the transmission mechanism realizes the full-season self-adaptive regulation and control of automatic covering in the warm season and automatic opening in the cold season, manual intervention and external power driving are not needed, the hot rod body working mode can be automatically switched according to the change of the environment temperature, the technical defects that heat backflow and permafrost warming and thawing are prone to occurring in the summer of the traditional hot rod are solved, and the permafrost temperature control stability and the roadbed safety are remarkably improved.

The invention relates to the technical field of road engineering, and discloses a dehumidification and heat exchange method and system for a permafrost region roadbed and electronic equipment.The dehumidification and heat exchange method comprises the steps that a ventilation pipe is arranged in a roadbed structure, the porosity of the ventilation pipe is not smaller than 90%, the water permeation rate is larger than 1.0 L / (s.m), and the ventilation pipe is connected with a driving device; arranging a temperature and humidity monitoring unit in the roadbed; collecting temperature and humidity data of the roadbed and the environment, and calculating to obtain a temperature difference delta T and a water potential difference delta psi of the roadbed and the environment; judging whether in a warm season, if in the warm season, judging whether a warm season starting condition delta T is greater than or equal to 3 DEG C or delta psi is greater than or equal to 30kPa is met, and if in a non-warm season, judging whether a non-warm season starting condition delta T is greater than or equal to 2 DEG C or delta psi is greater than or equal to 50kPa is met; and when the warm season starting condition or the non-warm season starting condition is met, the driving device is controlled to be started, and the ventilation pipe is made to operate. Uniform heat dissipation and dynamic ventilation are achieved through the ventilation pipes, the uniformity of a roadbed temperature field is remarkably improved, the active drainage function of the ventilation pipes is combined, local water accumulation is effectively eliminated, and the hidden danger of frost heaving and thaw collapse is avoided.

The invention relates to the technical field of frozen soil slope prevention and control, in particular to a frozen soil slope cooling structure which is characterized in that a sunshade assembly which shields the slope of a slope is slidably arranged on the slope, the sunshade assembly is hollow, a ventilation area is formed between the sunshade assembly and the slope, a water collection covered channel is formed in one side of the sunshade assembly and extends into the slope, and the water collection covered channel is communicated with the slope. Water collecting pipes parallel to the side slope are arranged on the inner edges of the water collecting covered channels, water on the surface of the side slope flows into the water collecting covered channels, water on the shallow layer of the side slope flows into the water collecting covered channels along the water collecting pipes, the water collecting covered channels prevent water from permeating downwards, and meanwhile accumulated water can serve as a heat insulation layer in summer to reduce heat transfer of a side slope soil layer. The heat conductivity coefficient is increased after water is frozen in the cold season, so that the slope cooling can be accelerated, the slope cooling structure can cool the slope by utilizing air cold energy during ventilation in the cold season, and the side plate and the sun shield are erected to shield the large area of the slope in the warm season, so that the situation that the frozen soil melts due to temperature rise and then collapses is prevented.

The present invention discloses a fully automatic device for pumping cold air into block-stone subgrade and includes an outer cylinder, an inner cylinder, a power system and an air pumping system; and utilizes natural wind to drive the air pumping system to operate for the purpose of pumping cold air into a block-stone subgrade, and achieves the effect of pumping cold air into the block-stone subgrade in cold seasons and keeping warm air out of the block-stone subgrade in warm seasons by disposing a temperature-sensitive clutch. The present invention may effectively improve the engineering applicability of the block-stone subgrade construction technology in the areas with heavy snowfall; the present invention effectively improves the performance of the block-stone subgrade as a thermal semiconductor on an inter-annual scale and further protects the permafrost underlying the subgrade.

A photothermal adsorption refrigeration device and its application method for railway subgrades in permafrost regions are disclosed, comprising an above-ground photothermal drive and control unit and an underground phase change heat transfer unit. The device utilizes a metal halide-ammonia chemisorption cycle, using solar photothermal drive to generate a pressure potential difference through desorption / adsorption to replace a mechanical compressor, achieving a system with no moving parts and zero carbon emissions. The method includes geological survey and cooling capacity assessment, selection of device parameters and working fluid, subgrade cross-section layout based on deformation control, construction and commissioning, day / night / seasonal multi-field coupled adaptive operation, and closed-loop feedback. This invention overcomes the limitations of traditional heat pipes that remain dormant in warm seasons. It forcibly extracts heat from the permafrost during the warm season and enhances refrigeration using extremely low temperatures during the cold season, forming a synergistic dual-effect refrigeration of "active in summer and enhanced in winter." This can raise the upper limit of permafrost and control subgrade settlement to the millimeter level, making it suitable for plateau railway engineering, significantly improving the long-term stability of the subgrade and reducing operation and maintenance costs.

1. Name of the design product: Pillow blanket (Warm throughout the four seasons - Facing the sun). 2. Use of the design product: For household items, can be used as a pillow when folded and as a quilt when unfolded. 3. Design key points of the design product: The combination of shape and pattern. 4. Picture or photo that best shows the design key points: Front view.

The utility model relates to the field of pile foundation engineering in permafrost regions, and particularly discloses an assembly type anti-freezing pile pulling foundation for overhead transmission lines in permafrost regions, which comprises a strip-shaped base, a regular conical upright post, a heat insulation plate and a bearing platform which are sequentially arranged from bottom to top, the upper part of the regular conical upright post is a hollow circular truncated cone, and the lower part of the regular conical upright post is a hollow cylinder; the top end of the regular-cone-shaped stand column is sequentially connected with a heat insulation plate and a bearing platform through bolts, the pile bottom is connected with a strip-shaped base through a flange, the bearing platform and the strip-shaped base are each of a prefabricated assembly type structure, and the heat insulation plate is an asbestos plate. The pile foundation is a hollow body and is light in weight, the regular-cone-shaped stand columns can fundamentally reduce tangential frost heaving force, so that upward pulling displacement of the pile body is reduced, the heat insulation plates can effectively prevent radiation heat from being transmitted to soil around the pile in warm seasons, the frozen soil upper limit of the soil around the pile is improved, the stability of the soil around the pile is enhanced, meanwhile, all the components can be flexibly disassembled and assembled, and construction is convenient. Construction is fast and convenient, and application and popularization are facilitated.

Methods for controlling and / or suppressing Poa annua (annual bluegrass) in a stand of warm season turfgrass are provided. In certain aspects, the methods may include contacting a stand of warm season turfgrass comprising Poa annua with an herbicidally effective amount of thiencarbazone-methyl when the Poa annua is in an early post-emergence growth state or during an early post-emergence period of time.

Techniques are disclosed for modular outdoor umbrella systems comprising an umbrella frame, a substantially transparent canopy and a substantially opaque canopy. Initially, the substantially transparent canopy is removably installed on the umbrella frame by a user. This first canopy provides warmth and visibility during the colder seasons while providing protection from the ultraviolet rays of the sun. During the warmer seasons, the user interchanges the canopy with a substantially opaque canopy. This second canopy provides shade and cooling effect. The decision to interchange is based on a number of factors. These include performance attributes of the canopies, the prevailing environmental conditions and personal preference(s) of the user. In embodiments, a multiplicity of canopies are provided that can be modularly and removably installed by the user as needed based on the above factors. In other variations, a heatshield cover is provided that can be removably deployed over an underlying transparent canopy based on the above factors.

The invention relates to the technical field of crossing of cold region road engineering and new energy, and discloses a permafrost region road foundation melting interlayer heat balance regulation and control system which comprises a hot rod, a ventilation pipe module and a control module. A first semiconductor chilling plate is connected to the inner wall of the condensation section, a hot rod closer is arranged at the junction of the condensation section and the heat insulation section, a first temperature sensor for detecting air temperature is arranged on the outer side of the lower portion of the condensation section, and a second temperature sensor and a pressure sensor are arranged at the tail end of the evaporation section and used for measuring foundation temperature and stress respectively; the ventilation pipe module comprises a ventilation pipe and a semiconductor fan arranged at an air inlet of the ventilation pipe. A pipe opening of the ventilation pipe is provided with a wind pressure sensor and a ventilation pipe closer. The control module controls starting and stopping of the hot rod closer, the first semiconductor chilling plate, the ventilation pipe closer and the semiconductor fan, and the problems that a foundation is melted and sunk due to low working efficiency of the hot rod and the ventilation pipe in warm seasons and the foundation is frozen to heave due to excessive freezing in cold seasons are solved.

The invention relates to the technical field of frozen soil slope maintenance, in particular to a frozen soil slope protection structure which comprises a temperature control assembly, an upper layer supporting structure arranged at the upper end of a slope surface and a lower layer supporting structure arranged at the lower end of the slope surface, and the temperature control assembly is arranged between the upper layer supporting structure and the lower layer supporting structure. The temperature control assembly is connected with the slope, a ventilation pipe used for adjusting the temperature of the slope is arranged in the temperature control assembly, the lower layer supporting structure comprises a supporting piece and a heat exchange pipe inserted into the slope, and a drainage ditch used for drainage is formed in one end of the lower layer supporting structure. According to the permafrost slope, in the cold season, the slope keeps low-temperature freezing through convection ventilation of the ventilation pipes, in the warm season, the ventilation pipes are closed to form an air heat insulation layer, frozen soil is prevented from being melted, and then the stability of the permafrost slope is improved.

The invention relates to the technical field of frozen soil engineering disease treatment and prevention and control, in particular to a combined vegetation hydrothermal prevention and control tower footing stability enhancing device which comprises a composite filling unit, a one-way heat conduction unit, a vegetation unit and a sunshade heat preservation unit. The composite filling unit is used for filling and repairing the low-concave terrain around the prevention and control tower footing to enable the low-concave terrain to be consistent with the ground surface in height, and is used for isolating external heat transfer in warm seasons; the one-way heat conduction unit is combined with the composite filling unit for one-way heat conduction and is used for cooling the frozen soil at the lower part in winter; the device is an organic whole, all the constituent units are organically matched and cooperatively linked, on the basis that water and heat effects and influences of original parts are effectively removed, a sunshade cooling, one-way heat conduction cooling and multi-stage cooling synergistic effect mechanism is innovatively adopted, and the good protection effect on the frozen soil on the lower portion is achieved; and finally, the dual goals of excellent cooling effect and frozen soil foundation stability improvement are achieved.