Abstract: An electrical brake energy feedback system, including a rectifier and inverter circuit, an intermediate DC circuit, a first voltage detection circuit configured to detect voltages of positive and negative terminals of the intermediate DC circuit to obtain a first voltage signal, a bidirectional DC/DC conversion circuit and/or a regeneration control circuit, and an electrical energy flow control circuit for controlling operating states of the bidirectional DC/DC conversion circuit and/or the regeneration control circuit according to the first voltage signal. With this system, the electrical brake energy can be recovered to the greatest extent when the vehicle is running in different zones, and the electrical brake energy consumed by the brake resistor is as little as possible. Accordingly, the vehicle and the entire transportation system can be more energy-saving and environmentally friendly.

Abstract: A method for genetic transformation of edible mushrooms is provided relating to the technical field of genetic transformation of Agaricus bisporus, enoki mushroom and shiitake. The disclosed method for genetic transformation of Agaricus bisporus includes: inoculating Agaricus bisporus liquid mycelia into a foxtail-millet-grain culture medium, and pre-culturing them at 20-25° C. until Agaricus bisporus mycelia grow on surfaces of foxtail millet grains. This method uses the foxtail millet grains as an attachment matrix, and during the pre-culturing and co-culturing, the culture substrate is shaken up every day. The method for genetic transformation of enoki mushroom or shiitake includes: inoculation of enoki mushroom mycelia or shiitake mycelia, activated culturing of agrobacterium, and agrobacterium infecting a foxtail millet grain-enoki mushroom mycelium matrix or a foxtail millet grain-shiitake mycelium matrix.

Abstract: An electrical brake energy feedback system, including a rectifier and inverter circuit, an intermediate DC circuit, a first voltage detection circuit configured to detect voltages of positive and negative terminals of the intermediate DC circuit to obtain a first voltage signal, a bidirectional DC/DC conversion circuit and/or a regeneration control circuit, and an electrical energy flow control circuit for controlling operating states of the bidirectional DC/DC conversion circuit and/or the regeneration control circuit according to the first voltage signal. With this system, the electrical brake energy can be recovered to the greatest extent when the vehicle is running in different zones, and the electrical brake energy consumed by the brake resistor is as little as possible. Accordingly, the vehicle and the entire transportation system can be more energy-saving and environmentally friendly.

Abstract: A photoelectric hybrid connection system includes a photoelectric hybrid distribution box, an photoelectric hybrid main feeder assembly and a fan-out assembly; The photoelectric hybrid main feeder assembly is terminated with a photoelectric hybrid main feeder connector, and the photoelectric hybrid main feeder connector is matched with the photoelectric hybrid input end connector of the photoelectric hybrid distribution box. The fan-out assembly comprises corrugated tubes, a plurality of fan-out structures connected to corrugated tubes, and a hybrid photoelectric jumper connector; The photoelectric hybrid jumper connector is matched with the photoelectric hybrid output end connector of the photoelectric hybrid distribution box. Some advantages of certain embodiments of the invention are that it can reduces field connections and fixation work which fan-out requires, and can reduces the number of lines to be manipulated.

Abstract: A method for genetic transformation of edible mushrooms is provided relating to the technical field of genetic transformation of Agaricus bisporus, enoki mushroom and shiitake. The disclosed method for genetic transformation of Agaricus bisporus includes: inoculating Agaricus bisporus liquid mycelia into a foxtail-millet-grain culture medium, and pre-culturing them at 20-25° C. until Agaricus bisporus mycelia grow on surfaces of foxtail millet grains. This method uses the foxtail millet grains as an attachment matrix, and during the pre-culturing and co-culturing, the culture substrate is shaken up every day. The method for genetic transformation of enoki mushroom or shiitake includes: inoculation of enoki mushroom mycelia or shiitake mycelia, activated culturing of agrobacterium, and agrobacterium infecting a foxtail millet grain-enoki mushroom mycelium matrix or a foxtail millet grain-shiitake mycelium matrix.

Abstract: The present invention discloses to a faceplate with a dust-proof shutter (10). In one embodiment, the faceplate includes: a faceplate body (1); a connection port (4) provided in the faceplate body and adapted for plugging and unplugging; a dust-proof shutter for covering the connection port. The dust-proof shutter can move between a closed position and an opened position so that the connection port is switched between a closed state and an opened state; and a dust-proof shutter locating unit (30, 21, 22) is able to locate the dust-proof shutter in the closed position and the opened position respectively, in response to the action of the dust-proof shutter. Particularly, the dust-proof shutter can be held in an opened position where the connection port is in an opened state, and also the dust-proof shutter is capable of being timely returned to a closed position once the connection port needs to be closed.

Abstract: The present invention discloses to a faceplate with a dust-proof shutter (10). In one embodiment, the faceplate includes: a faceplate body (1); a connection port (4) provided in the faceplate body and adapted for plugging and unplugging; a dust-proof shutter for covering the connection port. The dust-proof shutter can move between a closed position and an opened position so that the connection port is switched between a closed state and an opened state; and a dust-proof shutter locating unit (30, 21, 22) is able to locate the dust-proof shutter in the closed position and the opened position respectively, in response to the action of the dust-proof shutter. Particularly, the dust-proof shutter can be held in an opened position where the connection port is in an opened state, and also the dust-proof shutter is capable of being timely returned to a closed position once the connection port needs to be closed.