Abstract: A battery positioning element and a battery pack to which it is applied. The battery positioning element is fixed in a group to a busbar plate of the battery pack, and a region for battery positioning is formed along the outer side of the pole lugs of the busbar plate. The battery positioning element includes a base plate and a clamping portion connected to the base plate, and the clamping portion has a clamping groove corresponding to the batteries formed on the outer side of the clamping portion. The battery positioning element locates and fixes the battery to the busbar plate of the battery pack, which is convenient for welding, and in addition, avoids shaking between the batteries during the use of the battery pack, and prolongs the service life of the battery pack.

Abstract: A connector which comprises a first circuit board and a connecting piece detachably connected to the first circuit board, the connecting piece comprises a second circuit board and a third circuit board, one end of the second circuit board is detachably connected to the first circuit board through a plug connector, and the other end of the second circuit board is detachably connected to the third circuit board through a plug connector. One end of the second circuit board is electrically connected with the first circuit board, the other end of the second circuit board is electrically connected with one end of the third circuit board, and the third circuit board is a flexible circuit board and is electrically connected to the first circuit board through the second circuit board. The connector disclosed by the invention is simple in structure, and convenient to disassemble and assemble the circuit boards.

Abstract: A large-format laser processing module, comprising galvanometer cutting modules arranged above a stand through a gantry; the gantry comprises two support frames fixed to the stand and a crossbeam fixed to the top of the two support frames; a mounting plate for mounting the galvanometer cutting modules is arranged on the same side or both sides of the crossbeam; and one or more galvanometer cutting modules are arranged within the mounting plate. The large-format laser processing the number of the galvanometer cutting modules is at least two and the galvanometer cutting modules are arranged on the same side or both sides of the crossbeam; module disclosed in the present invention is characterized by a simple structure and simultaneous processing by a plurality of galvanometer cutting modules, which improves production efficiency.

Abstract: A breakpoint insulating film includes an insulating film body laminated on the surface of the flexible circuit. The insulating film has a main body that includes a battery connection area, and the battery connection area is provided with several electrode holes. The battery connection area is along the insulating film body. Several positioning hole groups are provided in the length direction, and the adjacent positioning holes include several breakpoint tearing line groups between the positioning hole groups. A split line group runs through the battery connection along the width direction of the insulating film body. The film has a simple structure and can be adjusted to a certain position through a tearing line group. The position of the positioning hole group improves the positioning between the insulating film and the flexible circuit.

Abstract: A current collector includes successive layers, which includes a first insulating layer, a reinforcement layer, a bus layer and a second insulating layer that are stacked. Several electrode connection parts are provided in the bus layer. The reinforcing layer includes a first reinforcing plate and a second reinforcing plate arranged at intervals. Each layer is provided with a first hole corresponding to an electrode connection part. The current collector has a simple structure, and includes reinforcing layers that are formed mutually independent of each other, and includes a first reinforcing plate and a second reinforcing plate. The gap between the first reinforcing plate and the second reinforcing plate can be bent arbitrarily.

Abstract: An electromagnetic bed for a workpiece includes an electromagnetic bed body having a top surface that includes magnetic blocks arranged in a rectangular array, at least one of the magnetic blocks has a positioning pin protruding from the second top surface, the at least one of the magnetic blocks being fixed in the electromagnetic bed body by a bolt, a bottom plate placed proximate to the second top surfaces, and a cover plate is arranged correspondingly with the electromagnetic bed body, the cover plate being made of a magnetic material, with the workpiece placed between the bottom plate and the cover plate.

Abstract: A connector comprising a first circuit board and a second circuit board disassembled on the first circuit board through a connecting piece, the connecting piece slides through the first circuit board and the second circuit board, and the first circuit board and the second circuit board are fixed to each other, the first circuit board is provided with a conductive part, the second circuit board is provided with a contact part, and the second circuit board is provided with a contact part. When the second circuit board is installed on the first line circuit board, the conductive part and the contact part are electrically connected. The connector of the invention is simple in structure and convenient for disassembly and assembly between the first line circuit board and the second circuit board.

Abstract: A process for producing mesophase pitch, the process including: providing a feedstock having a T5?400° F. (204° C.) and a T95?1,400° F. (760° C.); heating the feedstock at a temperature of at least 450° C. to produce a heat treated product including mesophase pitch, wherein the heating is conducted under reaction conditions sufficient to have an equivalent reaction time greater than or equal to 1,000 seconds; and recovering the mesophase pitch.

Abstract: A connector comprising a first circuit board and a second circuit board disassembled on the first circuit board through a connecting piece, the connecting piece slides through the first circuit board and the second circuit board, and the first circuit board and the second circuit board are fixed to each other, the first circuit board is provided with a conductive part, the second circuit board is provided with a contact part, and the second circuit board is provided with a contact part. When the second circuit board is installed on the first line circuit board, the conductive part and the contact part are electrically connected. The connector of the invention is simple in structure and convenient for disassembly and assembly between the first line circuit board and the second circuit board.

Abstract: The invention relates to the field of oilfield development engineering, and discloses a self-growing gel dispersion active fluidity control system and a fluid channeling control method for a low-permeability-tight reservoir. The system contains 100 parts by weight of a self-growing gel dispersion and 0.15-0.6 part by weight of a surfactant, the self-growing gel dispersion is prepared by shearing and grinding nano-reinforced chromium-aldehyde double-group cross-linked integral gel, and the preparation method of the nano-reinforced chromium-aldehyde double-group cross-linked integral gel comprises the following steps: adding a functional polymer, a phenolic resin cross-linking agent, are organic chromium cross-linking agent and a nano-reinforcer into water, mixing, and curing.

Abstract: A process for producing mesophase pitch, the process including: contacting an isotropic pitch with a solvent under conditions sufficient to produce a solvent fraction comprising the solvent and an insoluble fraction comprising mesophase pitch; and recovering the mesophase pitch, wherein the contacting includes the solvent having a Solubility Blending number (SBN) that causes the mesophase pitch to have a softening point ranging from 270° C. to 350° C., as measured in accordance with ASTM D3104-14.

Abstract: Mesophase pitch compositions may be obtained by subjecting isotropic pitch compositions to heat-treatment. Methods for producing mesophase pitch compositions may comprise heat treating an isotropic pitch composition comprising two or more aromatic classes linked with at least one methylene bridge between each aromatic classes, at a temperature of about 300° C. to about 500° C. to produce a mesophase pitch composition having a weight average molecular weight of about 300 g/mol to about 2,000 g/mol, a softening point of about 100° C. or greater, a mesophase content of about 0.01 vol % to 100 vol %, based on the total volume of the mesophase pitch composition, and a micro carbon residue of about 25 wt % or greater, based on the total weight of the mesophase pitch composition; wherein heat treating induces cyclization between at least two of the two or more aromatic classes to form one or more 5-membered rings and/or 6-membered rings.

Abstract: A method for assessing test adequacy of deep neural networks based on element decomposition is provided. The network testing is divided into black box testing and white box testing, of which key elements are decomposed and defined. Network parameters including a weight matrix and a bias vector are extracted. Importance values of neurons in individual layers of the deep neural network are calculated and clustered, and an importance value hot map of neurons in each layer is generated based on clustering results. Mutation testing, and index calculation and evaluation are performed.

Abstract: Processes are described for producing mesophase pitch. The processes generally comprise providing a feedstock having a T5 ?400° F. (204° C.) and a T95 ?1,400° F. (760° C.) and heating the feedstock at a temperature ranging from about 420° C. to about 520° C. to produce a heat treated product including isotropic pitch. Generally, the heating is conducted under conditions sufficient to satisfy the relationship [X*Y]?20,000 seconds, wherein X is the equivalent reaction time of the heating, and wherein Y is the bromine number of the feedstock as measured in accordance with ASTM D1159. The processes generally further comprise contacting the isotropic pitch with a solvent having a Solubility Blending number (SBN) of at least about 10 SU under conditions sufficient to produce a solvent fraction comprising the solvent and an insoluble fraction comprising mesophase pitch, and recovering the mesophase pitch.

Abstract: The present application provides a display device includes: a display panel; at least one function film disposed on at least one side of a display panel, wherein each of the function film includes a first magnetic unit; wherein display device further includes a second magnetic unit located between the display panel and each function film. The second magnetic unit is securely connected to the display panel and has a magnetic attraction force between the second magnetic unit and the first magnetic unit. The display panel is slidably connected to the function film through the second magnetic unit.

Abstract: The present invention is a pet cage having an upper cage member and a lower base member. The lower base member has a bottom that is partially cut out. An exchangeable plate or tray is provided and adapted to engage with the opening in the bottom of the lower base member. When an exchangeable plate or tray with access points, such as through-holes, are used, the pet can graze on fresh grass in a safe environment. When an exchangeable plate or tray without access points are used, the cage is restored to a conventional cage with closed bottom surface.

Abstract: The invention relates to the field of oilfield development engineering, and discloses a self-growing gel dispersion active fluidity control system and a fluid channeling control method for a low-permeability-tight reservoir. The system contains 100 parts by weight of a self-growing gel dispersion and 0.15-0.6 part by weight of a surfactant, the self-growing gel dispersion is prepared by shearing and grinding nano-reinforced chromium-aldehyde double-group cross-linked integral gel, and the preparation method of the nano-reinforced chromium-aldehyde double-group cross-linked integral gel comprises the following steps: adding a functional polymer, a phenolic resin cross-linking agent, are organic chromium cross-linking agent and a nano-reinforcer into water, mixing, and curing.

Abstract: Methods and systems to preserve, prepare, extract, and/or analyze hydrocarbons in the pore spaces of or adsorbed in organic-rich rock samples, such as, but not limited to, drill cuttings and drill cores, using one or more combinations of physical energy sources, including, but not limited to, thermal, vapor pressure, and mechanical stress. The collected samples are transported and prepared in low temperature conditions, with parts of subsequent processing at very low temperatures, thereby allowing a fuller measurement of geochemical fingerprints for the extracted hydrocarbons using various analysis tools. More particularly, the treatment and process allows geochemical fingerprinting to very low carbon number ranges.

Abstract: Methods and systems to monitor and analysis unconventional reservoirs with wellbores with a substantially horizontal section. Monitoring and analysis is conducted in three dimensions using high-resolution geochemical fingerprinting analyses of rock samples and produced oil samples. The invention uses methods to preserve, prepare, extract, and/or analyze hydrocarbons in the pore spaces of or adsorbed in organic-rich rock samples, such as, but not limited to, drill cuttings and drill cores, using one or more combinations of physical energy sources, including, but not limited to, thermal, vapor pressure, and mechanical stress. The collected samples are transported and prepared in low temperature conditions, with parts of subsequent processing at very low temperatures, thereby allowing a fuller measurement of geochemical fingerprints for the extracted hydrocarbons using various analysis tools. More particularly, the treatment and process allows geochemical fingerprinting to very low carbon number ranges.

Abstract: The present disclosure belongs to the technical field of medicine preparation, and particularly relates to a nasal spray for preventing influenza based on a red pepper extract and heparin and a preparation method thereof. A nasal spray consists of the following raw materials in parts by weight: 10% ?-PGA-CS, 5-10% glycerol, 2% red pepper extract, 5-10% heparin solution, 2-2.4% ethanol and balance of purified water. The present disclosure can not only inhibit germs and diminish inflammation, and has a better therapeutic effect on rhinitis, but also can keep the inner surface of a nasal cavity moist for a long time. Moreover, the present disclosure can reduce side effects on a human body by changing the type of bactericides in the nasal spray, thus keeping the nasal cavity clean and moist for a long time.