Abstract: A system for multi-channel data acquisition and precision irrigation and fertilizer application control of crops involving the following steps: obtaining a soil moisture content and a plant status parameter for plants within each homogeneous area; calculating a required soil moisture content for plants within the homogeneous area based on a difference between the required soil moisture content for plants within the planting area and the soil moisture content for plants within the homogeneous area; obtaining types and quality of required fertilizers for plants within the homogeneous area based on the plant status parameter for plants within the homogeneous area; blending an irrigation water and fertilizer solution required by plants within the homogeneous area; and irrigating plants within each homogeneous area according to the irrigation water and fertilizer solution required by plants within the homogeneous area.

Abstract: Disclosed is a straw crushing device capable of driving a sharpening structure, relating to the field of straw crushing. The straw crushing device includes a main housing, the main housing is internally provided with a crushing chamber and a suction chamber, a feeding nozzle is installed outside the main housing, and the feeding nozzle communicates with a feeding end of the crushing chamber. A spline transmission shaft is installed inside the main housing, and penetrates through the crushing chamber and the suction chamber. A driving motor is installed outside the main housing, and the driving motor is connected to the spline transmission shaft. A Y-shaped tool rest is installed on the spline transmission shaft, and the Y-shaped tool rest is located in the crushing chamber.

Abstract: A model box for leakage and collapse of a buried pipeline capable of switching internal and external seepage working conditions includes a steel structure box body, an organic glass observation window, a stainless steel pipeline, an organic glass pipeline and a sand discharging pipeline; a top portion of the box body is opened and provided with a rainfall structure bracket; two sides of an interior of the box body are divided into water tanks on two sides and a sand tank in a middle portion through steel plate barriers, and the steel plate barrier is provided with a water permeable hole.

Abstract: A method for culturing ginseng cell with high content of ginsenoside, including inducing ginseng cell line: after disinfected and sliced, ultrasonically treating old mountain ginseng, and culturing the old mountain ginseng in a culture medium; screening the ginseng cell line: choosing a variety of culture mediums and using hormones for cell separation and culture, selecting cell lines with better growth morphology and faster growth, and performing solid subculture and liquid suspension culture; optimizing conversion conditions: using acids to treat the chosen cell lines, and controlling the treatment temperature and treatment time, detecting ginsenosides Rg3 and Rh2 in the dried products, determining an optimal treatment condition according to the highest total amount; large-scale industrial production: according to the optimal treatment condition, performing the liquid suspension culture of the selected cell lines and scaling up the scale of culture to obtain large-scale industrial production of ginseng cell

Abstract: A method for culturing ginseng cell with high content of ginsenoside, including inducing ginseng cell line: after disinfected and sliced, ultrasonically treating old mountain ginseng, and culturing the old mountain ginseng in a culture medium; screening the ginseng cell line: choosing a variety of culture mediums and using hormones for cell separation and culture, selecting cell lines with better growth morphology and faster growth, and performing solid subculture and liquid suspension culture; optimizing conversion conditions: using acids to treat the chosen cell lines, and controlling the transformation temperature and transformation time, detecting ginsenosides Rg3 and Rh2 in the dried products, determining an optimal transformation condition according to the highest total amount; large-scale industrial production: according to the optimal transformation condition, performing the liquid suspension culture of the selected cell lines and scaling up the scale of culture to obtain large-scale industrial produc

Abstract: A method for isolating and/or culturing cambium stem cells of panax ginseng is disclosed. The method comprises a step of treating tissues containing panax ginseng cambium with a compound of formula I. The present application further relates to cambium stem cells of panax ginseng obtained according to the method and use of such cambium stem cells in preparing a product for a suspension culture of panax ginseng. The method for isolating and/or culturing cambium stem cells of panax ginseng according to the present application can effectively separate the cambium stem cells of the panax ginseng which have unlimited cytodieresis ability and strong anti-adversity ability, can provide a basis for ultra-large volume liquid culture, which can significantly reduce production costs.

Abstract: A humidifying device comprising: a water tank (202) for storing water; a water pump (205), which is connected to the water tank (202) via an upper water pipe (251); and a water channel (241), which is connected to the water pump (205) via a lower water pipe (252), wherein the water pump (205) is configured to pump the water from the water tank (202) to the water channel (241). Further disclosed is an air handling system.

Abstract: An artificial knee joint includes a femoral component (1) and a tibial component (2). The femoral component (1) includes an intercondylar box (11). A cam (12) is provided on posterior of the intercondylar box (11). The tibial component (2) includes a medial condyle bearing surface (21) and a lateral condyle bearing surface (22) arranged on right and left side respectively. A post (23) is provided between the medial condyle bearing surface (21) and the lateral condyle bearing surface (22). The post (23) is adapted to the intercondylar box (11). The post (23) has a first arc surface (231) on the lateral side of posterior surface. The post (23) has a second arc surface (232) on the posterior surface and on the medial side of the first arc surface (231). A third arc surface (121) and a forth surface (122), cooperating with the first arc surface (231) and the second arc surface (232), are provided on the cam (12) accordingly.

Abstract: An artificial knee joint includes a femoral component (1) and a tibial component (2). The femoral component (1) includes an intercondylar box (11). A cam (12) is provided on posterior of the intercondylar box (11). The tibial component (2) includes a medial condyle bearing surface (21) and a lateral condyle bearing surface (22) arranged on right and left side respectively. A post (23) is provided between the medial condyle bearing surface (21) and the lateral condyle bearing surface (22). The post (23) is adapted to the intercondylar box (11). The post (23) has a first arc surface (231) on the lateral side of posterior surface. The post (23) has a second arc surface (232) on the posterior surface and on the medial side of the first arc surface (231). A third arc surface (121) and a forth surface (122), cooperating with the first arc surface (231) and the second arc surface (232), are provided on the cam (12) accordingly.

Abstract: An artificial knee joint includes a femoral component (1) and a tibial component (2). The femoral component (1) includes an intercondylar box (11). A cam (12) is provided on posterior of the intercondylar box (11). The tibial component (2) includes a medial condyle bearing surface (21) and a lateral condyle bearing surface (22) arranged on right and left side respectively. A post (23) is provided between the medial condyle bearing surface (21) and the lateral condyle bearing surface (22). The post (23) is adapted to the intercondylar box (11). The post (23) has a first arc surface (231) on the lateral side of posterior surface. The post (23) has a second arc surface (232) on the posterior surface and on the medial side of the first arc surface (231). A third arc surface (121) and a forth surface (122), cooperating with the first arc surface (231) and the second arc surface (232), are provided on the cam (12) accordingly.