Abstract: A power tool includes a tool body, an electric motor disposed in the tool body, and a battery interface configured to be connected to a battery pack for supplying power to the electric motor. The battery pack includes a housing; and a cell module disposed in the housing. The cell module includes multiple cells; a cell holder configured to support the multiple cells; and a circuit board electrically connected to at least the multiple cells. The battery pack further includes a terminal assembly electrically connected to at least the circuit board or the multiple cells and connecting the cell module to the battery interface for electric power transmission; and a silicone immersion coating applied to at least the cell module.

Abstract: The present invention discloses a storage box cover and a storage box used therewith. The storage box cover is covered on a storage box body which is fixedly connected with a clamping convex ring on a bottom end surface; the top edge of a cover body is annularly provided with a clamping groove; the bottom end surface of the cover body is annularly provided with a buckle; the top circumference of the cover body has a downward turnup; a ring groove for clamping the top of the storage box body is formed between the buckle and the turnup; and the buckle can be adapted and clamped in the clamping groove to complete the stable stacking of a plurality of storage box covers; the top of the cover body is fixedly connected with a limiting flange for limiting the storage box body.

Abstract: A syringe-fixation device includes a cylindrical body, a fixing block, a brake member, a transmission rod, an elastic compression member and a first driving mechanism. The cylindrical body and a pump body are slidable, and the cylindrical body is provided with a limiting portion. The fixing block is connected to a first end of the cylindrical body, and a first accommodating cavity having an opening is provided in the fixing block. The brake member is located in the first accommodating cavity. The transmission rod is slidably arranged in the cylindrical body, and a first end of the transmission rod is connected to the brake member. A first end of the elastic compression member abuts against the limiting portion, and a second end of the elastic compression member abuts against the brake member. The first driving mechanism is connected to a second end of the transmission rod.

Abstract: A syringe positioning assembly includes a housing, a rotating member, a fixing member and a transmission member. The rotating member is connected to the fixing member via the transmission member, and during rotation, the rotating member can, via the transmission member, drive the fixing member to move. When the rotating member rotates in a direction away from a carrying face of the housing, the fixing member can be moved in a direction away from the fixing face. A space between the rotating member and the carrying face of the housing facilitates placement of a barrel of a syringe and a space between the fixing member and the fixing face of the housing can also facilitate placement of a barrel flange. A user can thus move the fixing member just by operating the rotating member, so that the syringe can be easily mounted and properly positioned.

Abstract: The present disclosure provides a culture method of adherent cells generating a tight junction structure and a product thereof. The culture method includes: inoculating adherent cells resuspended in a culture medium onto a bottom support liquid in a culture container for culture to obtain a membranous cell sheet, where the bottom support liquid has higher density than the culture medium, and is not miscible with the culture medium. According to the culture method in the present disclosure, the bottom support liquid is applied to the culture of the adherent cells for the first time, the formation of a tight junction between the adherent cells and the secretion of a large number of extracellular matrices can be promoted so as to form a membranous cell sheet having high cell density, and in vivo tissue structures are well simulated.

Abstract: A hydrogen leakage detecting material, and a preparation method therefor and the use thereof are provided. The hydrogen leakage detecting material has a color-changing substrate and an active component. The color-changing substrate is hexagonal-phase tungsten trioxide having a microstructure of a nanorod bundle formed by multiple nanorods, and the active component is noble metal nanoparticles. A starting reduction temperature of the hydrogen leakage detecting material on hydrogen is less than or equal to 100° C. The hydrogen leakage detecting material has a relatively high sensitivity to hydrogen under different conditions, and has significant color change and a shorter color change response time.

Abstract: The present disclosure discloses an organic silicon nano-precursor medium transmission inhibitor and its preparation method and use. The organic silicon nano-precursor medium transmission inhibitor is composed of an organic silicon and its derivatives, a catalyst, a dispersant, a stabilizer, a surfactant, and water. The organic silicon nano-precursor medium transmission inhibitor in-situ generates nanoparticles during a hydration process. The nanoparticles not only have a hydrophobic function, but also can effectively fill the pores of the concrete, which effectively solves a problem in which a hydrophobic material in a state of full water cannot reduce the diffusion of an erosive medium. The problems such as uneven dispersion and poor stability of nanoparticles added can be effectively solved by in-situ generating the nanoparticles, thereby effectively improving the ion corrosion resistance performance of the concrete.

Abstract: A method for constructing a rockbolt force inversion model based on laser scanning of a bearing plate includes: acquiring a first morphological point cloud of the bearing plate based on a laser scanner; acquiring a second morphological point cloud of the bearing plate based on the laser scanner; and constructing the rockbolt force inversion model based on a preset convolutional neural network, the first morphological point cloud, the second morphological point cloud and a rockbolt force value.

Abstract: Embodiments of the present disclosure provide an information sending method applied to a node. The method includes: sending capability advertisement information, wherein the capability advertisement information is used for indicating a capability of the node to support compressed SRv6 SIDs. Embodiments of the present disclosure further provide an information processing method, a node, a controller, and a non-transitory computer-readable storage medium.

Abstract: Providing a multi-functional group superplasticizer for an ultra-high performance concrete and a method for preparing the same. Its backbone is an alkyl chain, and its side chain are some side chains with carboxylic acid or carboxylate at terminals, some polyether side chains, and some polyol amine side chains substituted with phosphoric acid or phosphite at terminals, the polyol amine side chains substituted with phosphoric acid or phosphite at terminals is connected to the backbone through a phenyl or an alkyl group of 1-9 carbons, and a ratio of a number of the side chains with carboxylic acid or carboxylate at terminals to a total number of side chains is ?0 and ?0.8; and a ratio of a number of the polyether side chains to the total number of side chains is ?0.1 and ?0.9.

Abstract: According to various embodiments of the present disclosure, an electronic device analyzes shared contents of all members in a circle created by a client user and generates feature information of the circle. The electronic device analyzes shared contents of each member in a buddy list created by the client user and generates feature information of each member in the buddy list. The electronic device calculates a similarity between the feature information of each member in the buddy list and the feature information of the circle, generates a similarity set, and generates a recommended buddy of the circle based on the similarity set. The electronic device prompts the recommended buddy of the circle to the client user.

Abstract: According to various embodiments of the present disclosure, an electronic device analyzes shared contents of all members in a circle created by a client user and generates feature information of the circle. The electronic device analyzes shared contents of each member in a buddy list created by the client user and generates feature information of each member in the buddy list. The electronic device calculates a similarity between the feature information of each member in the buddy list and the feature information of the circle, generates a similarity set, and generates a recommended buddy of the circle based on the similarity set. The electronic device prompts the recommended buddy of the circle to the client user.

Abstract: Disclosed is an automatic sunlight tracking device comprising a solar panel holder (1), a mounting (2), a pitching angle tracking member, and a swing angle tracking member. The solar panel holder (1) is coupled with the mounting (2) through a three-dimensional assembly (3), and the pitching tracking member comprises a first transmission part and a first drive device (81) cooperating with the first transmission part. The swing tracking member comprises a second transmission part and a second drive device (82) cooperating with the second transmission part. The three-dimensional assembly (3) includes two rotation supporting shafts arranged in a cross shape. The automatic sunlight tracking device has a high operation accuracy, a reasonable structure, low operation energy consumption. It is easy to be controlled, and installation and maintenance is facilitated.

Abstract: Disclosed is an automatic sunlight tracking device comprising a solar panel holder (1), a mounting (2), a pitching angle tracking member, and a swing angle tracking member. The solar panel holder (1) is coupled with the mounting (2) through a three-dimensional assembly (3), and the pitching tracking member comprises a first transmission part and a first drive device (81) cooperating with the first transmission part. The swing tracking member comprises a second transmission part and a second drive device (82) cooperating with the second transmission part. The three-dimensional assembly (3) includes two rotation supporting shafts arranged in a cross shape. The automatic sunlight tracking device has a high operation accuracy, a reasonable structure, low operation energy consumption. It is easy to be controlled, and installation and maintenance is facilitated.

Abstract: The invention involves a papilloma pseudovirus that can induce immune response after oral intake as well as its preparation. It is characterized in that HPV or BPV pseudovirus are made by disrupting HPV-VLP or BPV-VLP, mixing them with plasmids (plasmids or DNA vaccine), and reassembling them into the pseudoviruses (VLPs with plasmids inside). Oral administration of the pseudoviruses will result in delivery to mucosal and systemic lymphoid tissues and induce immune responses for disease prevention and treatment. The pseudovirus induces stronger immune response than DNA vaccines. Additionally, the pseudovirus can be applied in gene therapy by bringing the therapeutic genes into lymphoid tissues in the human body.

Abstract: The invention involves a papilloma pseudovirus that can induce immune response after oral intake as well as its preparation. It is characterized in that HPV or BPV pseudovirus are made by disrupting HPV-VLP or BPV-VLP, mixing them with plasmids (plasmids or DNA vaccine), and reassembling them into the pseudoviruses (VLPs with plasmids inside). Oral administration of the pseudoviruses will result in delivery to mucosal and systemic lymphoid tissues and induce immune responses for disease prevention and treatment. The pseudovirus induces stronger immune response than DNA vaccines. Additionally, the pseudovirus can be applied in gene therapy by bringing the therapeutic genes into lymphoid tissues in the human body.

Abstract: The invention involves a papilloma pseudovirus that can induce immune response after oral intake as well as its preparation. It is characterized in that HPV or BPV pseudovirus are made by disrupting HPV-VLP or BPV-VLP, mixing them with plasmids (plasmids or DNA vaccine), and reassembling them into the pseudoviruses (VLPs with plasmids inside). Oral administration of the pseudoviruses will result in delivery to mucosal and systemic lymphoid tissues and induce immune responses for disease prevention and treatment. The pseudovirus induces stronger immune response than DNA vaccines. Additionally, the pseudovirus can be applied in gene therapy by bringing the therapeutic genes into lymphoid tissues in the human body.

Abstract: The invention involves a papilloma pseudovirus that can induce immune response after oral intake as well as its preparation. It is characterized in that HPV or BPV pseudovirus are made by disrupting HPV-VLP or BPV-VLP, mixing them with plasmids (plasmids or DNA vaccine), and reassembling them into the pseudoviruses (VLPs with plasmids inside). Oral administration of the pseudoviruses will result in delivery to mucosal and systemic lymphoid tissues and induce immune responses for disease prevention and treatment. The pseudovirus induces stronger immune response than DNA vaccines. Additionally, the pseudovirus can be applied in gene therapy by bringing the therapeutic genes into lymphoid tissues in the human body.

Abstract: The invention involves a papilloma pseudovirus that can induce immune response after oral intake as well as its preparation. It is characterized in that HPV or BPV pseudovirus are made by disrupting HPV-VLP or BPV-VLP, mixing them with plasmids (plasmids or DNA vaccine), and reassembling them into the pseudoviruses (VLPs with plasmids inside). Oral administration of the pseudoviruses will result in delivery to mucosal and systemic lymphoid tissues and induce immune responses for disease prevention and treatment. The pseudovirus induces stronger immune response than DNA vaccines. Additionally, the pseudovirus can be applied in gene therapy by bringing the therapeutic genes into lymphoid tissues in the human body.