Abstract: The present application relates to the field of drug carriers, and specifically discloses a cationic lipid compound, and a preparation method therefor and a use thereof. The cationic lipid compound comprises a compound represented by formula I; in the formula I, n is equal to 1, 2, 3 or 4; R1 and R2 are each independently selected from secondary long-chain alkyl esters represented by formula II; in the formula II, n1=2, 4 or 6, n2=5, 7, 9 or 11, and n3=5, 7, 9 or 11. The cationic lipid compound is combined with phospholipids, cholesterol and polyethylene glycol lipids, such that an LNP carrier may be prepared, and then nucleic acid molecules are wrapped to prepare a corresponding drug.

Abstract: A busbar assembly used with batteries is provided. The busbar includes multiple battery connecting sheets. Each connecting sheet is able to connect, in series, cells in adjacent rows. The multiple battery connecting sheets are able to connect, in parallel, multiple cells in the same row, thereby adapting to connection requirements of various cell arrangement manners. A positive connecting region has a similar contour as a positive electrode post of each cell, so that the connection is more stable and convenient. Since a width of a negative connecting region is greater than a width of the positive connecting region, the negative connecting region is configured for connecting a negative electrode in a circumferential direction of the positive electrode post.

Abstract: A diagnostic method and system for measuring potential and electric field of plasma are provided. According to operation parameters of a magnetic confinement fusion device and relevant parameter data of a plurality of candidate particle elements, signal-noise ratios are calculated. to select a neutral beam particle element. Beam trajectories varying in incident velocity, incident angle and sampling area are obtained by iterative calculation, and a preset parameter which enables the beam trajectories to pass through an entrance slit of an analyzer is obtained. A neutral beam that meets the preset parameter is injected into the plasma. An energy of the primary beam generated by collision ionization in a sampling area is measured, and potential of the sampling area is obtained according to law of conservation of energy. Sampling areas are detected to obtain potential spatial distribution of the plasma and a radial electric field, and the diagnostic is finished.

Abstract: A method includes: detecting initial capacities of multiple to-be-grouped battery cells, and grouping, among the to-be-grouped battery cells, battery cells to obtain a first battery pack; detecting an initial SOC of each battery cell in the first battery pack, and grouping the battery cells in the first battery pack to obtain a second battery pack; simulating a charging and discharging process of the second battery pack to obtain charging data and discharging data corresponding to the battery cell; and determining a grouping efficiency of the second battery pack based on the charging data, the discharging data, and a nominal capacity.

Abstract: The disclosure relates to a reflection unit applied to an ultrasonic anemometer and used to reflect ultrasonic waves from a transmitter, wherein the reflected ultrasonic waves are received by a receiver. The reflection unit comprises a reflection plate and further comprises a mesh cover layer structure covering on the upper surface of the reflection plate. In an embodiment of the present disclosure, the mesh cover layer is provided on the reflection plate, so that the raindrops/water droplets falling on the reflection unit can be quickly scattered on the surface of the reflection unit, thereby eliminating the irregular shape and high liquid accumulation formed on the surface of the reflection unit, ensuring the accuracy of ultrasonic anemometer measurements in wind and rain conditions.

Abstract: A battery pack includes: a case body including an accommodation trough and a pressure relief member; battery modules; and trays each corresponding to corresponding one of the battery modules and including a tray body and supports; where each of the battery modules is bonded to an upper side of the tray body by an adhesive, a first end of each of the supports is connected to the tray body, a second end of the support is in contact with a bottom portion of the accommodation trough, the tray body and the bottom portion of the accommodation trough are spaced apart to form a pressure relief cavity communicating with the pressure relief member, each of the supports is provided with a first through hole, and the adhesive is bonded to the bottom portion of the accommodation trough through the first through hole from the upper side.

Abstract: A diagnostic method and system for measuring potential and electric field of plasma are provided. According to operation parameters of a magnetic confinement fusion device and relevant parameter data of a plurality of candidate particle elements, signal-noise ratios are calculated. to select a neutral beam particle element. Beam trajectories varying in incident velocity, incident angle and sampling area are obtained by iterative calculation, and a preset parameter which enables the beam trajectories to pass through an entrance slit of an analyzer is obtained. A neutral beam that meets the preset parameter is injected into the plasma. An energy of the primary beam generated by collision ionization in a sampling area is measured, and potential of the sampling area is obtained according to law of conservation of energy. Sampling areas are detected to obtain potential spatial distribution of the plasma and a radial electric field, and the diagnostic is finished.

Abstract: The present application discloses a battery module, including: a mounting bracket including a first mounting surface and a second mounting surface disposed opposite to each other, where the first mounting surface is provided with a plurality of fixing plates; a busbar assembly detachably connected to the mounting bracket and disposed on the second mounting surface; a plurality of cells arranged on the first mounting surface and connected to the bus bar assembly; an FPC board assembly including a plurality of FPC boards and a plurality of connectors, where the FPC boards are vertically disposed on the first mounting surface, a connection end of each of the FPC boards is fixedly connected to respective one of the connectors and riveted to respective one of the fixing boards.

Abstract: A rail vehicle includes a bogie, multiple wheels, a chassis, and a carriage. The wheels are disposed on the bogie. The chassis is disposed on the bogie and connected to the bogie through a first suspension. The carriage is disposed on the chassis and connected to the chassis through a second suspension.

Abstract: An antitumor chemotherapeutic drug liposome having a low drug-to-lipid ratio and an application thereof. The antitumor chemotherapeutic drug liposome comprises an antitumor drug and a liposome as a carrier, wherein the drug-to-lipid ratio of the antitumor drug to the lipid carrier is between 0.01 and 0.15.

Abstract: The present disclosure provides a chassis assembly and a vehicle. The chassis component includes: a chassis provided with a plurality of mounting positions and configured to install a battery module; a quick-release device through which the battery module is installed on the mounting positions, wherein the quick-release device is controlled by a control system; and a voltage electrical connecting assembly electrically connected to the battery module, wherein the voltage electrical connecting assembly is controlled by the control system. The vehicle includes the chassis assembly.

Abstract: The present disclosure provides a chassis assembly and a vehicle. The chassis component includes: a chassis provided with a plurality of mounting positions and configured to install a battery module; a quick-release device through which the battery module is installed on the mounting positions, wherein the quick-release device is controlled by a control system; and a voltage electrical connecting assembly electrically connected to the battery module, wherein the voltage electrical connecting assembly is controlled by the control system. The vehicle includes the chassis assembly.

Abstract: The present disclosure provides a chassis assembly and a vehicle. The chassis component includes: a chassis provided with a plurality of mounting positions and configured to install a battery module; a quick-release device through which the battery module is installed on the mounting positions, wherein the quick-release device is controlled by a control system; and a voltage electrical connecting assembly electrically connected to the battery module, wherein the voltage electrical connecting assembly is controlled by the control system. The vehicle includes the chassis assembly.

Abstract: The present disclosure belongs to the field of the use of liposome preparations in the preparation of tumor drugs, and in particular, relates to the construction and use of a multicellular targeting liposome. Due to that a single liposome includes multiple antibodies against different cells, and a liposome with a stable structure and long circulation characteristics in vivo is constituted by molecular self-assembly, the multicellular targeting liposome can sequentially or simultaneously bind to multiple different cells by means of the action of antibodies to promote the identification of, communication between, the cytotoxicity of, the pro-apoptosis or clearance of different cells, etc.

Abstract: The disclosure relates to a reflection unit applied to an ultrasonic anemometer and used to reflect ultrasonic waves from a transmitter, wherein the reflected ultrasonic waves are received by a receiver. The reflection unit comprises a reflection plate and further comprises a mesh cover layer structure covering on the upper surface of the reflection plate. In an embodiment of the present disclosure, the mesh cover layer is provided on the reflection plate, so that the raindrops/water droplets falling on the reflection unit can be quickly scattered on the surface of the reflection unit, thereby eliminating the irregular shape and high liquid accumulation formed on the surface of the reflection unit, ensuring the accuracy of ultrasonic anemometer measurements in wind and rain conditions.

Abstract: The present disclosure relates to an all-trans retinoic acid liposome formulation and a preparation method thereof. The all-trans retinoic acid liposome formulation includes all-trans retinoic acid and a liposome vector. The disclosure adopts an active drug loading method, including a calcium acetate gradient method or a sodium acetate gradient method. The prepared all-trans retinoic acid formulation has high drug loading and high stability in vivo, thereby increasing the blood concentration and prolonging the half-life of the all-trans retinoic acid.