Abstract: A terminal includes: an electrical contact part which is used to make electrical contact with a mating terminal; and an electrical connection part which is used for electrical connection with an aluminum cable. The electrical contact part and the electrical connection part are connected as a whole, the electrical contact part is a copper component or a copper alloy component, and the electrical connection part is an aluminum component or an aluminum alloy component. The electrical contact part may be made of copper or copper alloy and an electrical connection part made of aluminum or aluminum alloy. The copper or copper alloy electrical contact part can reliably and stably make electrical contact with a mating terminal, while the aluminum or aluminum alloy electrical connection part can reliably and stably connect with an aluminum cable, effectively avoiding electrochemical corrosion problem between the copper terminal and the aluminum cable.

Abstract: Disclosed is use of dihydroquercetin in treating ocular surface diseases, pertaining to the technical field of pharmacy. The use of dihydroquercetin in treating ocular surface diseases of the present invention is specifically use of dihydroquercetin in preparing a medicament for preventing, alleviating and/or treating ocular surface diseases. The present invention applies dihydroquercetin to the prevention, alleviation and/or treatment of ocular surface diseases for the first time. The dihydroquercetin serving as an antioxidant has a good protective effect against diseases related to oxidative damage in human corneal epithelial (HCE) cells. Moreover, in a certain concentration range, the dihydroquercetin can promote the proliferation and improve the vitality of the HCE cells, and can also increase the tear secretion amount and tear film stability of the HCE cells, resulting in significant amelioration of the ocular surface diseases.

Abstract: Disclosed herein are an isocyanate composition, and a preparation method therefor and the use thereof. The effective factor of the isocyanate composition is 3.70-4.70. The isocyanate composition has good reaction activity and can be used for preparing a high-performance polyurethane product.

Abstract: A current collector and a battery are provided. The current collector includes a pole post connecting portion, a main body portion and a folded portion. The pole post connecting portion is connected to a pole post. One end of the main body portion is connected to the pole post connecting portion, another end of the main body portion away from the pole post connecting portion is bent to form the folded portion. A tab of a cell pack is welded to one of the folded portion or the main body portion.

Abstract: An anti-sponge tangling massage chair has a motor and one or more massage heads driven by the motor. An output terminal of the motor is connected to the massage head via a rotary shaft. The massage head has a base connected to the rotary shaft and a plurality of massage blocks mounted on the base. An end of each massage block away from the base is constructed as a flat contact surface and a protective cover is installed outside the rotary shaft. One end of the protective cover is connected to a side where the base and the massage block are close to the motor and the other end of the protective cover is connected to an end of the rotary shaft close to the motor.

Abstract: A connection structure, a cover assembly and a battery are provided. The connection structure includes a tab connection portion and a pole connection portion that are bend-connected. One side of the tab connection portion adjacent to the pole connection portion is arranged facing a core pack. One side of the tab connection portion facing away from the pole connection portion is configured to be welded with a tab protruding from the core pack. The pole connection portion is configured to connect a pole of the core pack. A thickness of the tab connection portion is greater than a thickness of the pole connection portion, so that a distance from the tab welded to the tab connection portion to a side surface of the core pack where the tab is located is greater than the thickness of the pole connection portion.

Abstract: The present application relates to the field of battery technology, and discloses a cylindrical battery structure including a cover plate and a housing. The cover plate includes a cover plate main portion and a cover plate connecting portion fixedly connected to each other. One of an edge of the cover plate connecting portion and an edge of the housing is bent to form a bent portion, and another of the edge of the housing and the edge of the cover plate connecting portion is bent to form a hook portion. The hook portion is configured to hang on the bent portion to connect the cover plate and the housing. The cylindrical battery structure disclosed in the application has simpler connection mode, lower connection cost, and faster connection. In addition, the connection mode has lower requirements on assembly accuracy of workpieces in the housing.

Abstract: A viewing angle prediction method, including determining a current predicted viewing angle corresponding to a current to-be-downloaded clip in a panoramic video based on a head movement trajectory of a user viewing the panoramic video (S110); acquiring a target candidate viewing angle set corresponding to said current to-be-downloaded clip in response to detecting that a current head turning action in the head movement trajectory is an invalid action (S120); and performing correction processing on the current predicted viewing angle, and determining a target predicted viewing angle corresponding to said current to-be-downloaded clip, based on the target candidate viewing angle set (S130).

Abstract: The disclosed technology relates to a portable electronic device. The portable electronic device may comprise a battery, a battery controller, and a system controller. The battery controller may be configured to determine real time battery state information associated with the battery, the real time battery state information including a system load current draw, a battery age indicator, and a battery temperature. The system controller may be configured to determine a user initiated current low voltage mode state of the portable electronic device of a plurality of low voltage mode states, receive current battery state information from the battery controller, and adaptively generate a real time shutoff voltage threshold based on the current determined low voltage mode state and the current battery state information.

Abstract: The present application provides a battery pin and a battery. The battery pin includes a top cover connecting portion and a connecting portion. The tab connecting portion includes a main body plate, a connecting plate, and a bending plate. The bending plate is configured to connect with a tab. The top cover connecting portion is bent and connected to an end of the main body plate, the bending plate is bent and connected to a side of the connecting plate, and the main body plate is bendably connected to the other side of the connecting plate.

Abstract: An anti-interference flexible circuit board for an audio apparatus with a camera comprises an integrated ribbon multilayer structure. An outer conductive layer includes a differential signal line group for digital video transmission and a main clock line, covered by an electromagnetic shielding film to form a shielding cavity. The flexible circuit board further integrates an analog audio drive line group and an independent microphone ground line physically isolated from a main ground line network, connecting only at a terminal portion or a pad position. A package body provides outer-layer protection. Through this layered wiring and shielding isolation, common-ground interference in hybrid transmission of high-speed digital and analog signals within narrow spaces is effectively reduced.