328results about "Climate change adaptation" patented technology

A method for cooling inlet air to a gas turbine is provided. For example, a method is described including passing inlet air through a cooling coil that includes an opening for receiving the inlet air and that is operably connected to a gas turbine power plant. The gas turbine power plant may include at least one gas turbine, and at least one gas turbine inlet which receives the inlet air. The method may further include passing circulating water through a water chiller at a first flow rate to reduce the temperature of the circulating water, the water chiller including a conduit through which the circulating water is capable of passing and passing the circulating water having the first flow rate through the cooling coil in an amount sufficient to lower the temperature of the inlet air. Additionally, the method may include reducing the flow rate of the circulating water passing through the water chiller, passing the circulating water through a water chiller at a second flow rate to reduce the temperature of the circulating water, the second flow rate being lower than the first flow rate, and passing the circulating water having the second flow rate through the cooling coil in an amount sufficient to lower the temperature of the inlet air.

A drip irrigation device for distributing a portion of the water flowing in an irrigation pipe to a plant, the device comprising: a housing formed from a relatively soft plastic; and a connector for coupling the housing to the irrigation pipe comprising a bayonet for puncturing the irrigation pipe formed from a relatively hard material over-molded onto a feature of the housing made from the soft plastic.

The invention relates to the technical field of culture of aquatic products, and more particularly discloses a culture method for crayfish. The culture method is characterized by comprising the following steps: selection of an aquaculture pond, water body treatment, aquatic plant transplanting, release of crayfish fries, bait feeding and water quality management. The culture method for the crayfish, which is provided by the invention, is more pertinent by feeding the crayfish with different proportions of animal baits and vegetable baits in different growth periods, and various ingredients can be combined better by mixing and adding Chinese herbal medicinal ingredients to the baits, such that the bait absorption speed and the growth speed of the crayfish can be effectively improved. A biological inhibitor prepared in the culture method can be used for not only effectively killing fungi and microbes in a water body, but also promoting the disease resistance of the crayfish.

The invention belongs to the technical field of structural engineering, and particularly relates to a heat-preservation wall body for a mixed structure of a wood frame and a wooden shear wall, and assembly technology. The assembled heat-preservation wall body consists of wall studs, a wood base structural slab, a gypsum board, heat-preservation cotton, a wood-frame pillar, a mudsill board and a top beam board, wherein a horizontal interval between every two adjacent wall studs is 400 to 600 millimeters, and the wall studs on both sides are connected with the wood-frame pillar through nails; the wood base structural slab covers the wall body, is connected with the wall studs, the top beam board and the mudsill board through the nails, and is flush with the outer side of the wood-frame pillar; the gypsum board is covered on the inner side of a wallboard and is connected with the wall studs through screws; and the heat-preservation cotton is filled between inner and outer cladding boards. Materials for the assembled wall body provided by the invention can improve the natural environment in the process of growth, have the advantages of low energy consumption in the machining process, regeneration and natural degradation after abandonment, and have the functions of quick construction, vibration prevention, energy conservation, heat preservation, heat insulation and the like; the heat-preservation wall body has the advantages of high industrial production degree, high production efficiency, less on-site wet operation, a plurality of operational surfaces and quick construction; and the materials, such as dimension stocks, connectors, plywood, laminated wood and the like can be localized to reduce the construction cost.

The invention discloses a lightweight porous MXene-based composite film electromagnetic shielding material and a preparation method thereof, and belongs to the technical field of film electromagnetic shielding materials and preparation thereof. Self-assembly of MXene and graphene oxide is realized by taking electrostatic interaction force as driving force on MXene modified by a cationic surface modifier and graphene oxide, and then the lightweight porous MXene-based composite electromagnetic shielding material with ultrahigh specific performance is obtained through film casting and high-temperature annealing. The prepared composite film material has excellent electromagnetic shielding effectiveness and specific effectiveness, and when the thickness is only 15 [mu]m, the porous MXene-based composite film obtained by adding 5 wt% of graphene oxide can keep the electromagnetic shielding effectiveness of 49 dB or above in the whole X wave band. The preparation process is simple and easy to operate, and the material is expected to be applied to the fields of aerospace, military equipment, micro electronic equipment, civil electric appliances and the like.

The invention discloses a light-biological double-degradation agricultural film, which comprises the following ingredients in percentage by weight: 81%-86% of plastic materials, 1%-3% of photosensitizer, 0.1%-0.3% of natto bacillus powder, 11%-13% of ore powder and 1%-3% of additive. The light-biological double-degradation agricultural film has the beneficial effects that: the photosensitizer, the natto bacillus powder and the ore powder are added in a polyethylene raw material for producing the agricultural film, so that the chemical structure of the agricultural film on an agricultural land can be changed (molecular weight is decreased) due to the action of natural daylight on the photosensitizer, the material strength is lowered, the phenomena of breakage and crushing occur, and the agricultural film can be quickly and effectively degraded in soil naturally after the natto bacillus powder and the ore powder are in contact with moisture in the soil.

Provided are an automatic lifting type algae turf system and an artificial algae field establishing method thereof. A plurality of square algae turf frames provided with mesh structures are included, and algae seedlings are arranged at each mesh. Four floaters are connected to the top ends of four right-angle bending heads of each square algae turf frame, and the bottom ends are connected with rope cables and settlers. Each square algae turf frame is fixed between two mooring ropes. The artificial algae field establishing method comprises the steps that before casting, the algae seedlings are clamped in the middle of the four sides of each mesh through algae clamps; and two anchors are cast in an incident-flow direction, after tensioning, a first square algae turf frame is cast in a downstream direction, and repeated operation is carried out in sequence. Large-area artificial algae field establishing can be achieved easily, automatic sinking can be achieved under the sea state of heavy storm wave, the safety of an algae turf and algae is protected, the structure is simple, assembling is easy, operation is convenient, cost is low, the method is suitable for large floating type algae field establishing in most sea areas in China, the application range is wide, and large market potential is achieved.

The invention discloses a seedling culture device with convenience in transplanting for forestry planting, belongs to the technical field of forestry planting equipment and solves the problems that seedling culture positions are fixed, seedling culture is difficult, water and illumination cannot be supplemented timey and transplanting is difficult after seedling culture in conventional forestry planting. The technical scheme is characterized in that the seedling culture device comprises a movable frame, a seedling culture box, a water storage tank and seedling culture plates, wherein the seedling culture box is arranged on the movable frame, the bottom of the seedling culture box is communicated with the water storage tank, a water supplementing pipe and a lamp are mounted in the seedlingculture box, a conveying chain is mounted in the seedling culture box, the seedling culture plates are suspended on the conveying chain, the conveying chain is poked to rotate, positions of the seedling culture plates and seedling culture pots on the seedling culture plates are convenient to adjust and switch, then plants in the seedling culture pots are supplemented with water and illumination, the seedling culture pots are taken out conveniently for transplanting through transplanting box doors on front and rear sides, and the operation is convenient and fast.

The invention provides a control node locating protecting method of undercutting channel segment water level lowering amplitude. The method comprises the steps that a lateral erosion zone and a deep erosion zone are divided; a target channel section is subjected to meshing, a plane two-dimension water flow mathematic model is established, parameter calibration and verification are carried out; a protection project is generalized to the plane two-dimension water flow mathematic model, the arranging zone and the width of the protecting project are determined; local gradient amplification and upstream water level amplification corresponding to each working condition are obtained, mesh sequences are analyzed respectively; key nodes or other nodes which have obvious influence are selected, for lateral erosion nodes, a hidden closure dam and a beach protection part are arranged on a river branch or a bottomland, and for deep erosion nodes, a bottom protecting band or a hidden closure dam are placed in a main groove. According to the method, nodes are divided into the lateral erosion nodes and the deep erosion nodes, protection part difference of the nodes in different types is provided, by comparing the efficiency of a local channel segment arranging protecting project, the positions of the nodes are accurately located, and the optimum efficiency of the protecting project is guaranteed powerfully.