AERIAL SEEDING BIOREMEDIATION METHOD FOR COAL MINING SUBSIDENCE AREA

    公开(公告)号:US20220248597A1

    公开(公告)日:2022-08-11

    申请号:US17586056

    申请日:2022-01-27

    Abstract: An aerial seeding bioremediation method for a coal mining subsidence area. The method includes obtaining a topographic map of the coal mining subsidence area; grading the topographic map in terms of ground slopes; determining seeding coefficients of aerial seeding operation according to a grading result of the ground slopes and ground coverage rates of the coal mining subsidence area; determining height adjustment parameters during unmanned aerial vehicle, UAV, aerial seeding; and performing, by a UVA, the aerial seeding operation according the grading result of the ground slopes, the seeding coefficients of the aerial seeding operation, and the height adjustment parameters. A slop grading technical standard of aerial seeding determined by the method of the present disclosure is applicable to complex topography of the coal mining subsidence area and helps with safety of the UVA.

    Forward converter with secondary LCD connected in series to realize excitation energy transfer

    公开(公告)号:US11323037B2

    公开(公告)日:2022-05-03

    申请号:US17022102

    申请日:2020-09-16

    Abstract: The present disclosure provides a forward converter with secondary LCD connected in series to realize excitation energy transfer, comprising a forward converter main circuit and an energy transfer and transmission circuit. The forward converter main circuit includes a high-frequency transformer T, a switching tube S, a diode D1, a diode D2, an inductance L1, and a capacitor C1. The energy transfer and transmission circuit includes a diode D3, a capacitor C2, and an inductance L2. The circuit structure of the present disclosure has simple circuit structure and high reliability. And the reverse recovery problem of the diode could be eliminated by the soft switch-off or soft switch-on of the switching tube, which further reducing the loss of switching tube and diodes and improving the overall efficiency. In addition, the excitation energy could be transferred to the load side to improve the energy transmission efficiency.

    Method for making toothpaste enabling enamel restoration

    公开(公告)号:US11259999B2

    公开(公告)日:2022-03-01

    申请号:US17120862

    申请日:2020-12-14

    Abstract: A method for making a toothpaste enabling enamel restoration proposes to encapsulate soluble calcium and phosphate salts within corresponding internal water phases in respective water-in-oil-in-water emulsions. In this way, the soluble calcium and phosphate salts can be present stably in the toothpaste over a long period of time without causing precipitation of calcium phosphate. When the toothpaste of the present disclosure is used in brushing teeth, the water-in-oil-in-water emulsions are ruptured under the effect of friction and pressing, releasing the soluble calcium and/or phosphate salts encapsulated within the corresponding internal water phases. As a result, the liquid in the user's oral cavity will contain high concentrations of calcium and phosphate ions, which can enhance the rate of remineralization of enamel and/or dentin exposed to the oral cavity.

    METHOD FOR MAKING TOOTHPASTE ENABLING ENAMEL RESTORATION

    公开(公告)号:US20210251858A1

    公开(公告)日:2021-08-19

    申请号:US17120862

    申请日:2020-12-14

    Abstract: A method for making a toothpaste enabling enamel restoration proposes to encapsulate soluble calcium and phosphate salts within corresponding internal water phases in respective water-in-oil-in-water emulsions. In this way, the soluble calcium and phosphate salts can be present stably in the toothpaste over a long period of time without causing precipitation of calcium phosphate. When the toothpaste of the present disclosure is used in brushing teeth, the water-in-oil-in-water emulsions are ruptured under the effect of friction and pressing, releasing the soluble calcium and/or phosphate salts encapsulated within the corresponding internal water phases. As a result, the liquid in the user's oral cavity will contain high concentrations of calcium and phosphate ions, which can enhance the rate of remineralization of enamel and/or dentin exposed to the oral cavity.

    SMALL INTEGRATED GREENING DEVICE AND METHOD FOR RECYCLING WASTEWATER

    公开(公告)号:US20200239345A1

    公开(公告)日:2020-07-30

    申请号:US16747672

    申请日:2020-01-21

    Abstract: The present invention discloses a small integrated greening device and method for recycling wastewater, including a wastewater collection system, a microorganism and plant purification system, and a reclaimed water collection and distribution system. The method includes the following process: greywater or wastewater is collected through a pipeline and enters a water collection tank of a wastewater collection part. Lifting is performed by submersible sewage pumps, such that the lifted water enters a microorganism and plant synergistic purification and greening part. Each submersible pump is controlled by one corresponding automatic water level controller to transport the treated water to the reclaimed water-use sites. The device and method provided by the present invention utilize the physical and chemical action of a filler and the synergistic purification effect of microorganisms and plants to purify the greywater, and the purified reclaimed water is used for flushing toilets, watering trees or other purposes.

    FORWARD CONVERTER WITH SECONDARY LCD CONNECTED IN SERIES TO REALIZE EXCITATION ENERGY TRANSFER

    公开(公告)号:US20210376736A1

    公开(公告)日:2021-12-02

    申请号:US17022102

    申请日:2020-09-16

    Abstract: The present disclosure provides a forward converter with secondary LCD connected in series to realize excitation energy transfer, comprising a forward converter main circuit and an energy transfer and transmission circuit. The forward converter main circuit includes a high-frequency transformer T, a switching tube S, a diode D1, a diode D2, an inductance L1, and a capacitor C1. The energy transfer and transmission circuit includes a diode D3, a capacitor C2, and an inductance L2. The circuit structure of the present disclosure has simple circuit structure and high reliability. And the reverse recovery problem of the diode could be eliminated by the soft switch-off or soft switch-on of the switching tube, which further reducing the loss of switching tube and diodes and improving the overall efficiency. In addition, the excitation energy could be transferred to the load side to improve the energy transmission efficiency.

    ANGLE-ADJUSTABLE THREE-DIMENSIONAL PHYSICAL SIMULATION DEVICE FOR EQUIVALENT COAL SEAM MINING

    公开(公告)号:US20230154357A1

    公开(公告)日:2023-05-18

    申请号:US18098159

    申请日:2023-01-18

    CPC classification number: G09B25/02

    Abstract: Disclosed is an angle-adjustable three-dimensional physical simulation device for equivalent coal seam mining, which comprises a base, a frame, a loading frame, an angle-adjusting device, a limiting plate and a lifting combined module. The top of the base is fixedly connected with the frame; the top of the frame is fixedly connected with the loading frame; the angle-adjusting device is located between the base and the frame; the bottom of the frame is fixedly connected with the limiting plate; the limiting plate is penetrated with a lifting combined module; the lifting combined module comprises a plurality of lifting pieces, and the lifting pieces comprise bolts and cushion blocks; the bolt penetrates through the limiting plate and is in threaded connection with the limiting plate; and one end in the bolt frame is rotatably connected with the cushion block.

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