38results about How to "Avoid wind damage" patented technology

The invention discloses a method for cultivating alfalfa in a low- salt and -alkali cultivated land, relates to a method for cultivating the alfalfa and solves the problems of low rate of emergence, low yield and low alfalfa wintering rate in a saline and alkaline land by the conventional alfalfa planting method. The method comprises the following steps of: 1, turning over soil of the low- salt and -alkali land in autumn and forming ridges; 2, softening and air-drying alfalfa seeds before sowing; 3, ditching in spring, watering, sowing and preventing against insects and weeding; 4, mowing in an early flowering season and mowing once every 30 to 40 days until 20 days before frosting; 5, mowing for the last time after frosting; and 6, keeping 16 and 25 percent of the water content (mass) ofthe soil in an alfalfa land after reviving in a second year, performing normal fertilizer and water management and mowing. The rate of emergence of the method is between 80 and 90 percent, grass yield in a first year is 25 to 28 percent higher than that of the conventional method and wintering rate is between 78 and 92 percent. The method is suitable for cultivating the alfalfa in the low- salt and -alkali cultivated land.

The current invention provides apparatuses and methods for protecting buildings / structures from wind damage and simultaneously harvesting energy from wind. The apparatuses of the current invention comprise horizontal axial wind turbines integrated to the roof-edge of the buildings / structures in an aerodynamically conducive and structurally viable configuration to reduce roof suction. The apparatuses of the current invention can further comprise aerodynamic roof gutter and structural supports / connections to alleviate wind-induced suction (negative pressures) on building roofs generated by separated flows and vortices. The apparatuses of the current invention can also comprise vertical axial wind turbines integrated to the wall-edge of the structures / buildings in an aerodynamically conducive and structurally viable configuration to reduce wind induced wall suction generated by separated flows and vortices.

The invention discloses an angle-adjustable monitoring device special for traffic. The angle-adjustable monitoring device comprises a first transmission box. The front end and the rear end of the leftside of the first transmission box communicate with a connecting box. A monitoring device body located on the inner side of the connecting box is arranged on the left side of the first transmission box. The front surface and the back surface of the monitoring device body are fixedly connected with a connecting rod. The end, away from the monitoring device body, of the connecting rod penetrates into the connecting box, and is movably connected with the inner wall of the connecting box by a bearing. A second transmission mechanism drives a fixing rod to rotate, the fixing rod drives the monitoring device body to rotate at a certain degree by the first transmission box and the connecting box to achieve an appropriate angle and then stop a second motor, and therefore the advantage of transversely adjusting the angle of the monitoring device is achieved. The angle-adjustable monitoring device solves the problems of an existing monitoring device for traffic that the angle can only be vertically adjusted and cannot be transversely adjusted, and the monitoring range is small.

The invention discloses a protective film coating device for product packaging, which comprises a conveyor belt for conveying plates, a film supply assembly and a lamination assembly. Both sides of the conveyor belt are symmetrically provided with support seats, and the support seats are provided with There are the film supply assembly and the laminating assembly, and the feature is that the film supply assembly is arranged on the support base with a mounting frame, and the film supply assembly can provide three kinds of membrane bodies of different materials, and the three kinds of membrane bodies are sequentially Go through the guide assembly and cover it on the plate in one of the ways, reducing material replacement and improving work efficiency; the bonding assembly is arranged at the discharge end of the conveyor belt, and the bonding assembly is arranged along Sliding setting in the length direction, and through the front and rear sliding displacement, the membrane body can be closely attached to the board. In addition, this device also provides an oil film for the attached membrane body. When the membrane body is attached to the board, the oil film can further protect The sheet material is reduced, and the static electricity and friction generated between the sheet material and the membrane body are also reduced.

The invention provides an air conditioner, wherein common high-voltage members are utilized to decrease the number of high-voltage members, thereby minimization and low cost can be realized. The first pipeline (10) accommodating a first fan (15) and the second pipeline (20) accommodating a second fan (25) are arranged in parallel. A first active seeds generation device (41) and a second active seeds generation device (42) are arranged at the outside of the first pipeline (10) and the second pipeline (20), and between the first fan (15) and the second fan (25).

Provided is a wind turbine blade for a wind turbine, the wind turbine blade including a support element having first fibers being electrically conductive, and a fiber material having second fibers being electrically conductive, wherein the fiber material has a free portion and an overlapping portion which is at least partially attached and electrically connected to the support element, wherein an extension direction of the second fibers changes along an extension path of the second fibers, wherein a first angle is provided between the second fibers in the overlapping portion and the first fibers, wherein a second angle is provided between the second fibers in the free portion and the first fibers, and wherein the second angle is larger than the first angle.

An electromagnetic actuation device with an actuation element, which can be adjusted relative to a stator on the basis of a magnetic actuation force which can be generated by the stator, wherein the stator has a coil winding, the winding wire of which is guided to a contact element bent at a bending region and is fixedly and electrically conductively connected to the same, wherein the contact element (5) has a depression geometry (9) in a bending region (7), which shortens a bending path of the winding wire (4) and through which the winding wire (4) passes.

The invention discloses a method for cultivating millets in light saline-alkali cultivated land and relates to a method for cultivating the millets. The method solves the problems of low yield and poor benefit of the conventional method for cultivating the millets in the saline-alkali land. The method comprises the following steps of: 1, performing stubble cleaning, autumn ploughing, autumn rigding and organic fertilizer application on the light saline-alkali land sequentially; 2, performing seeding in a mode of ditching on the ridge with water technology and wide lines; and 3, after the seedlings of the millets come up out of the ground, shoveling the land and intertilling, shoveling the land and shallow-ploughing and performing final singling of the seedlings sequentially; shoveling theland and performing deep-ploughing and folding after the completion of tillering of millets; during the jointing period of the millets, performing top application and cultivating the soil by fording deeply; during the grouting period of the millets, irrigating for one time; and harvesting the millets after the millets are ripe. The average yield per hectare of the millets cultivated in the saline-alkali land by the technical scheme reaches 4,500 kg; and compared with those of the conventional production land, the yield is increased by 47.7 to 51.0 percent and the income is increased by 5,820 to 6,220 yuan. The method can be used for cultivating the millets in the light saline-alkali cultivated land.