Abstract: A linear motor comprises a primary part and a secondary part opposite to each other. An air gap is reserved between the primary and secondary parts. The air gap has first spacing in non-operating state and second spacing in operating state. The side surface of the primary part facing the secondary part is provided with a magnetically conductive film that has elasticity in the thickness direction and a thickness greater than the first spacing and less than the second spacing. The magnetically conductive film comprises magnetically conductive base bodies and non-magnetically conductive base bodies alternately distributed along the surface of the magnetically conductive film, and the magnetically conductive base bodies are filled with magnetically conductive materials. The magnetically conductive base bodies cover magnetic poles on the side surface of the primary part facing the secondary part, and the non-magnetically conductive base bodies shield gaps between the adjacent magnetic poles.

Abstract: The disclosure provides a method for cultivating rice on a Cd-contaminated farmland, belonging to the technical field of agricultural cultivation. The disclosure provides a method for cultivating rice with high-yield and low-Cd on a Cd-contaminated farmland, including applying organic and compound fertilizers to a Cd contaminated farmland, conducting soil preparation, mulching film and conducting punching, transplanting rice seedlings, and performing water management. The method may effectively avoid the activation of Cd caused by the drainage and drying of the paddy field, effectively improve the soil nutrient of the plough layer, increase the root density, the effective ear number and grain number per ear of the rice, and realize double effect of high-yield and low-Cd of the rice.

Abstract: Provided is a cultivation method for increasing yield of ratooning rice and reducing Cd content and use thereof, belonging to the technical field of agricultural planting. The cultivation method for increasing yield of ratooning rice and reducing Cd content comprises sowing seeds of ratooning rice in middle and late March of a year, conducting transplantation in middle April of the year for growth in a Cd-contaminated rice field, performing water and fertilizer management of a first season rice, harvesting the first season rice at a position between 1st and 2nd last nodes thereof and performing water and fertilizer management of a second season rice. The cultivation method provided by the present disclosure may significantly increase the yield of ratooning rice, significantly reduce the content of Cd in brown rice of ratooning rice season, and is of great significance for the safe utilization of contaminated farmland.

Abstract: Embodiments of the present invention disclose a logic intelligent control system of train door based on intelligent control unit. The system comprises: a first intelligent control unit located in a selected vehicle of a train, a second intelligent control unit located in each of the other remaining vehicles of the train, and a door controller located in each vehicle. The first intelligent control unit is configured to output corresponding door control instructions through the corresponding door control instruction output port after acquiring door control operation information; the door control instruction input ports corresponding to the first intelligent control unit and the second intelligent control units are configured to drive corresponding door controller control ports to control the door controllers of a corresponding vehicle to execute the door control instruction after receiving the door control instructions.

Abstract: A seed soaking agent for reducing Cd content of rice and a low-labor intensity and simple method for reducing Cd content of rice are disclosed. The method includes mixing a seed and a seed soaking agent, and soaking the seed, to obtain a soaked seed; sowing the soaked seed, and reaping to obtain rice with a low Cd content, wherein an active ingredient of the seed soaking agent includes a trace element required by plants, the trace element includes selenium element, silicon element, zinc element or iron element, or a mixture of selenium element and iron element, a mixture of selenium element and silicon element, or a mixture of selenium element and zinc element.

Abstract: A power supply battery and a power supply system for high-speed maglev trains are disclosed. The power supply battery comprises: an electrolyte tank, a plurality of liquid flow pumps, and a plurality of aluminum-air battery reactors. The plurality of aluminum-air battery reactors are sequentially connected in series. The electrolyte tank comprises a plurality of elongate electrolyte grooves. One liquid flow pump corresponds to one aluminum-air battery reactor and one electrolyte groove.

Abstract: A rehabilitation material for reducing the bioavailability of Cd in soil and its use in immobilization remediation of weakly alkaline soil are disclosed. The rehabilitation material includes an iron mine tailing and an alkali lignin, wherein the iron mine tailing accounts for 80-90% of the sum of the masses of the iron mine tailing and the alkali lignin, and the iron mine tailing is prepared by mixing an iron tailing, mica, and dolomite in a mass ratio of 1:1.5:2.5, and calcining the resulting mixture at 1100° C. for 1 hour.

Abstract: A device for connecting a cross member for receiving pivot pins on two lower longitudinal members of a car body for a rail vehicle. The cross member has a transversal part that connects the two longitudinal members to each other in the region of the connection, and a longitudinal part that extends to the closest car front. The lower longitudinal members extend over the complete length of the car body and consist of multi-chamber hollow profiles made of a fibre composite material. The number of chambers of the multi-chamber hollow profile of each longitudinal member is reduced in the region of the connection such that the wall material of at least one chamber was removed in such a way that the webs to the adjacent chambers are exposed. At these places, load-introducing elements engage, to which load-introducing elements the cross member is attached.

Abstract: A linear motor comprises a primary part and a secondary part opposite to each other. An air gap is reserved between the primary and secondary parts. The air gap has first spacing in non-operating state and second spacing in operating state. The side surface of the primary part facing the secondary part is provided with a magnetically conductive film that has elasticity in the thickness direction and a thickness greater than the first spacing and less than the second spacing. The magnetically conductive film comprises magnetically conductive base bodies and non-magnetically conductive base bodies alternately distributed along the surface of the magnetically conductive film, and the magnetically conductive base bodies are filled with magnetically conductive materials. The magnetically conductive base bodies cover magnetic poles on the side surface of the primary part facing the secondary part, and the non-magnetically conductive base bodies shield gaps between the adjacent magnetic poles.

Abstract: Embodiments of the present invention disclose a logic intelligent control system of train door based on intelligent control unit. The system comprises: a first intelligent control unit located in a selected vehicle of a train, a second intelligent control unit located in each of the other remaining vehicles of the train, and a door controller located in each vehicle. The first intelligent control unit is configured to output corresponding door control instructions through the corresponding door control instruction output port after acquiring door control operation information; the door control instruction input ports corresponding to the first intelligent control unit and the second intelligent control units are configured to drive corresponding door controller control ports to control the door controllers of a corresponding vehicle to execute the door control instruction after receiving the door control instructions.

Abstract: A power supply battery and a power supply system for high-speed maglev trains are disclosed. The power supply battery comprises: an electrolyte tank, a plurality of liquid flow pumps, and a plurality of aluminum-air battery reactors. The plurality of aluminum-air battery reactors are sequentially connected in series. The electrolyte tank comprises a plurality of elongate electrolyte grooves. One liquid flow pump corresponds to one aluminum-air battery reactor and one electrolyte groove.

Abstract: A phase-change energy storage air duct of an automobile air conditioning system. A phase-change energy storage unit (2) is configured inside an air duct (1) of an air conditioning system. By means of phase-change heat absorption or release, residual heat in the air is absorbed, and the heat is released to air with a lower temperature, so that energy is recycled to achieve energy saving. The temperature of air entering a room or a carriage is kept stable, and thus the user experience is improved. When the air conditioning system fails, the phase-change energy storage unit (2) can still utilize stored cooling capacity or heat to cool down or heat up air in the air duct, so that a supply of air can be kept stable for a period of time, and thus the user experience is improved. The present application also relates to an automobile air conditioning system.

Abstract: Some embodiments of the present disclosure provide a side wall component of a railway vehicle, and a railway vehicle. The side wall component of a railway vehicle includes: a side wall, including a side wall body; and a plurality of side wall upright columns, connected with the side wall body respectively, the plurality of side wall upright columns being provided along a length direction of the side wall body at an interval, wherein an auxiliary air duct of the railway vehicle is formed between at least two side wall upright columns and the side wall body in the length direction of the side wall body. The embodiment of the present disclosure enables the railway vehicle to be compact in structure.

Abstract: A rail transit braking energy recovery system. The rail transit braking energy recovery system comprises a braking motor, a fuel battery, an electrolytic bath, and a hydrogen tank. The braking motor is used for converting braking energy of the rail transit into electric energy. An output end of the braking motor is connected to a power input end of the electrolytic bath. The electrolytic bath comprises a hydrogen output end and an oxygen output end, the hydrogen output end is connected to the hydrogen tank, and the hydrogen tank is connected to the fuel battery and is used for supplying hydrogen to the fuel battery. In the system, only the electrolytic bath is structurally added, and the existing vehicle-mounted hydrogen tank is directly used for storing hydrogen, therefore the structure is simple, the self weight of the vehicle body is reduced, the energy conversion efficiency is high, and at the same time, the injection of hydrogen is reduced and the operation cost is reduced.

Abstract: The present invention provides a microporous layer structure of a fuel cell, comprising: a microporous layer having high water vapor transmission rate and a microporous layer having low water vapor transmission rate that are sequentially stacked. In the direction of an air flow path, the thickness of the microporous layer having high water vapor transmission rate increases progressively, the thickness of the microporous layer having low water vapor transmission rate decreases progressively, and the total thickness of the microporous layer structure keeps consistent. At an air inlet, the thickness of the microporous layer having high water vapor transmission rate is smaller than that of the microporous layer having low water vapor transmission rate. At an air outlet, the thickness of the microporous layer having high water vapor transmission rate is greater than that of the microporous layer having low water vapor transmission rate.

Abstract: Disclosed are an electromagnetic transverse active damping system, and a control method and apparatus therefor. The electromagnetic transverse active damping system comprises an electromagnet controller, wherein the electromagnet controller can determine a value of a damper target gap for an electromagnet active damper according to acquired train transverse acceleration, train position information and train speed, and control the action of the electromagnet active damper according to the determined value of the damper target gap; and electrical control is employed during the control of the electromagnet active damper by the electromagnet controller.

Abstract: Disclosed are an electromagnetic transverse active damping system, and a control method and apparatus therefor. The electromagnetic transverse active damping system comprises an electromagnet controller, wherein the electromagnet controller can determine a value of a damper target gap for an electromagnet active damper according to acquired train transverse acceleration, train position information and train speed, and control the action of the electromagnet active damper according to the determined value of the damper target gap; and electrical control is employed during the control of the electromagnet active damper by the electromagnet controller.