Abstract: A lighting apparatus includes a driver, a metal plate, a light source module and a conductor unit. The driver receives an alternating current power source and converts the alternating current power source to a driving current. The metal plate is electrically connected to a ground. The light source module has a substrate and multiple LED modules. The multiple LED modules are mounted on the substrate. The substrate is disposed upon the metal plate. The conductor unit has a first end connected to the substrate of the light source module and a second end connected to the metal plate for removing a parasitic capacitance between the substrate of the light source and the metal plate for preventing a noise occurred when the LED module is turned on and the metal plate is connected to the ground.

Abstract: The present invention provides a membrane electrode assembly of a fuel cell, comprising a gas diffusion layer, a microporous layer, a catalytic layer, and an electrolyte membrane that are sequentially stacked. In the direction of an air flow path, the thickness of the microporous layer decreases progressively, the thickness of the catalytic layer increases progressively, and the total thickness of the microporous layer and the catalytic layer keeps consistent. The present application also provides a preparation method for the membrane electrode assembly of a fuel cell. The membrane electrode assembly of a fuel cell provided in the present application can balance water content of a gas inlet area and a gas outlet area of the fuel cell, and finally improves the stability of the fuel cell at different temperatures and humidity levels, thereby implementing functions such as improving the durability and decreasing a catalyst load.

Abstract: An information processing apparatus includes a presentation unit that gives an importance level to shared information, which is information shared in a group including plural users, and presents the shared information, the importance level becoming higher as an access frequency of the shared information becomes higher a correction unit that, when the plural users in the group are changed and the presentation unit gives the importance level to the shared information, determines a user who has left or joined the group as a reserved user and corrects an access frequency of the shared information by the reserved user to a value calculated using a method different from a method used for the other users.

Abstract: A lighting apparatus includes a first light source, a second light source, a current controller, a current source and a signal converter. The first light source and the second light source are two light sources of a light source set. The light source set may further include more light source of same type of different type. The current source is controlled by the current controller for generating a first driving current to the first light source and for generating a second driving current to the second light source. The signal converter converts a first type control signal to a second type control signal. The first type control signal indicates a light parameter to be produced by the light source set and the second light source. The second type control signal is supplied to the current controller to determine the first driving current and the second driving current.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A communication method and a terminal in a communication system are provided. The terminal determines multiple quasi co-location (QCL) information and information indicating a transmission state corresponding to a same downlink signal. The terminal measures and estimates a downlink channel state according to the determined multiple QCL information. The terminal demodulates the same downlink signal according to the information of multiple QCL, the information indicating the transmission state, and the downlink channel state.

Abstract: A lighting apparatus includes a driver, a metal plate, a light source module and a conductor unit. The driver receives an alternating current power source and converts the alternating current power source to a driving current. The metal plate is electrically connected to a ground. The light source module has a substrate and multiple LED modules. The multiple LED modules are mounted on the substrate. The substrate is disposed upon the metal plate. The conductor unit has a first end connected to the substrate of the light source module and a second end connected to the metal plate for removing a parasitic capacitance between the substrate of the light source and the metal plate for preventing a noise occurred when the LED module is turned on and the metal plate is connected to the ground.

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 membrane electrode assembly of a fuel cell, comprising a gas diffusion layer, a microporous layer, a catalytic layer, and an electrolyte membrane that are sequentially stacked. In the direction of an air flow path, the thickness of the microporous layer decreases progressively, the thickness of the catalytic layer increases progressively, and the total thickness of the microporous layer and the catalytic layer keeps consistent. The present application also provides a preparation method for the membrane electrode assembly of a fuel cell. The membrane electrode assembly of a fuel cell provided in the present application can balance water content of a gas inlet area and a gas outlet area of the fuel cell, and finally improves the stability of the fuel cell at different temperatures and humidity levels, thereby implementing functions such as improving the durability and decreasing a catalyst load.

Abstract: A method for preparing a boron-containing low-carbon steel oxide film includes performing micro-arc oxidation on boron-containing low-carbon steel in an electrolyte by using the boron-containing low-carbon steel as an anode, to obtain a boron-containing low-carbon steel oxide film. The electrolyte contains sodium meta aluminate of 5 g/L to 25 g/L, sodium dihydrogen phosphate of 2 g/L to 10 g/L, sodium carbonate of 2 g/L to 15 g/L, and glycerol of 2 g/L to 8 g/L. The preparation method provided by the present invention has a simple and controllable process, and the obtained boron-containing low-carbon steel oxide film has a secure bond with the substrate, thus effectively avoiding occurrence of galvanic corrosion.

Abstract: An information processing apparatus includes a presentation unit that gives an importance level to shared information, which is information shared in a group including plural users, and presents the shared information, the importance level becoming higher as an access frequency of the shared information becomes higher a correction unit that, when the plural users in the group are changed and the presentation unit gives the importance level to the shared information, determines a user who has left or joined the group as a reserved user and corrects an access frequency of the shared information by the reserved user to a value calculated using a method different from a method used for the other users.

Abstract: A method for preparing a boron-containing low-carbon steel oxide film includes performing micro-arc oxidation on boron-containing low-carbon steel in an electrolyte by using the boron-containing low-carbon steel as an anode, to obtain a boron-containing low-carbon steel oxide film. The electrolyte contains sodium meta aluminate of 5 g/L to 25 g/L, sodium dihydrogen phosphate of 2 g/L to 10 g/L, sodium carbonate of 2 g/L to 15 g/L, and glycerol of 2 g/L to 8 g/L. The preparation method provided by the present invention has a simple and controllable process, and the obtained boron-containing low-carbon steel oxide film has a secure bond with the substrate, thus effectively avoiding occurrence of galvanic corrosion.

Abstract: A method, device and system for controlling a fuel cell and a rail vehicle are provided. The method includes: an operating power of a target object is detected, wherein the target object is powered by at least two fuel cells (S102); when it is detected that the operating power of the target object is lower than a predetermined power, at least one fuel cell is turned off or a cell component in any one or more fuel cells is turned off according to a gas conversion range corresponding to the fuel cell (S104), wherein the gas conversion range is an output power range value, of the fuel cell, corresponding to a preset range value of a hydrogen conversion rate of the fuel cell.

Abstract: An electromagnetic vibration energy harvester for urban rail transit bridge health monitoring includes a housing, and a spring component, a mass block, a coils and two permanent magnets arranged in the housing. The spring component, two permanent magnets are provided with opposite poles facing each other. The spring component is provided between the two permanent magnets. The coils are provided in the upper end of the spring component; the mass block is provided in the coils. The mass block, coils, the total stiffness of the spring component and the natural frequency of the energy harvester satisfy the equation: ƒ=(k/4m?2)1/2 where m is the mass of the mass block (unit: kg); k is the total stiffness of the spring component (unit: kN/m); ƒ is the natural frequency of the energy harvester with the value ranging from 5-6 Hz.

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 invention is directed to methods for treating, inhibiting or prevent the incidence of vascular disease in a subject or in a non-human animal by administering visfatin. Particularly, the invention provides for methods to prevent phagocyte cell death due to ER-stress by the administration of visfatin. The invention also encompasses methods for identifying a visfatin polypeptide or a visfatin nucleic acid capable of treating a vascular disease as well as pharmaceutical compositions comprising visfatin.