Abstract: A lock, a vehicle parking system, and a vehicle parking method are provided. The lock includes a main body, a lock switch, a lock controller, a lock communication circuit, and a battery. The battery is connected to the lock switch, the lock controller, and the lock communication circuit, and configured to supply electrical energy to the lock switch, the lock controller, and the lock communication circuit. The lock communication circuit is connected to the lock controller, and transmits a locking instruction or an unlocking instruction to the lock controller when receiving the locking instruction or the unlocking instruction from a second device located outside the lock. The lock controller is connected to the lock switch connected to the main body, and the lock controller controls, when receiving the locking instruction or the unlocking instruction, the main body to perform a locking operation or an unlocking operation through the lock switch.

Abstract: A method of using a catheter assembly for inserting in a fluid filled space in a body includes providing a main body having a first end portion and a second end portion. The first end portion is positioned within the fluid filled space. The second end portion is adjusted to extend outwardly from the fluid filled space when the first end portion is positioned within the fluid filled space. A catheter tip is connected to the second end portion of the main body. The catheter tip includes a housing having a cavity defined therein and a rotating element positioned within the fluid filled space. The rotating element is rotated within the cavity of the housing to impart movement of the first end portion of the main body within the fluid filled space.

Abstract: A lock, a vehicle parking system, and a vehicle parking method are provided. The lock includes a main body, a lock switch, a lock controller, a lock communication circuit, and a battery. The battery is connected to the lock switch, the lock controller, and the lock communication circuit, and configured to supply electrical energy to the lock switch, the lock controller, and the lock communication circuit. The lock communication circuit is connected to the lock controller, and transmits a locking instruction or an unlocking instruction to the lock controller when receiving the locking instruction or the unlocking instruction from a second device located outside the lock. The lock controller is connected to the lock switch connected to the main body, and the lock controller controls, when receiving the locking instruction or the unlocking instruction, the main body to perform a locking operation or an unlocking operation through the lock switch.

Abstract: A zinc magnesium oxide material includes at least two composite thin film layers. An atomic ratio of Zn element to Mg element in each of the at least two composite thin film layers is different from an atomic ratio of Zn element to Mg element in each of at least one remaining composite thin film layer of the at least two composite thin film layers.

Abstract: The present disclosure provides a preparation method of a thin film solar battery, including the following steps: a) performing a first etching of the back electrode layer to form a plurality of first grooves; b) forming an insulator in each of the plurality of first grooves, thereby forming a plurality of insulators; c) forming a light absorption layer and a buffer layer sequentially on a surface of the back electrode layer, performing a second etching of the light absorption layer and the buffer layer to form a plurality of second grooves; and d) forming an upper electrode layer on a surface of the buffer layer, the upper electrode layer extending to the plurality of second grooves, and performing a third etching of the upper electrode layer, the buffer layer, and the light absorption layer to form a plurality of third grooves passing through the upper electrode layer, the buffer layer, and the light absorption layer, so as to obtain a plurality of serially connected battery cells.

Abstract: A thin film solar cell, including a substrate and a plurality of cell units disposed on the substrate, each cell unit includes a back electrode layer, a light absorbing layer, a buffer layer, and an upper electrode layer which are sequentially disposed. A first groove throughout the back electrode layer is disposed between the back electrode layers of any two adjacent cell units; the first groove is filled with an insulating portion. A second groove throughout the light absorbing layer and the buffer layer is disposed in each cell unit, the upper electrode layer of this cell unit extends to the second groove of this cell unit to contact the back electrode layer of the other cell unit of the two adjacent cell units. A third groove is disposed between the two adjacent cell units, the third groove insulate the upper electrode layers of the two adjacent cell units.

Abstract: A preparation method of a copper indium gallium selenide (CIGS) absorption layer, including: forming a prefabricated copper indium gallium film on a substrate; placing the prefabricated copper indium gallium film in a reaction chamber having a first temperature threshold; introducing a selenium atmosphere having a first carrier gas flow value into the reaction chamber, such that the prefabricated copper indium gallium film reacts within a first duration to form an unsaturated In—Se binary phase and an unsaturated Cu—Se binary phase on a surface of the prefabricated copper indium gallium film; introducing a selenium atmosphere having a second carrier gas flow value into the reaction chamber, such that the prefabricated copper indium gallium film reacts within a second preset duration to obtain a prefabricated CIGS film; annealing the prefabricated CIGS film within a second preset temperature threshold and a third preset duration to obtain a solar cell absorption layer.

Abstract: A thin-film solar cell is disclosed. The thin-film solar cell comprises a substrate on which a first conductive layer, a first alkaline element layer, a light absorption layer, a second alkaline element layer and a transparent conductive layer are sequentially disposed. According to the thin-film solar cell of the present disclosure, by disposing the second alkaline element layer, an alkali metal element in the second alkaline element layer reacts with elements in the light absorption layer to form a film layer containing the alkali metal element, thereby changing the composition of the surface of the light absorption layer, and further changing the electronic structure of the light absorption layer by ion exchange, reducing the surface recombination of charge carriers between the layers, so that an open-circuit voltage of the cell is increased in the post-preparation processing, thereby improving the photoelectric conversion efficiency of the cell.

Abstract: An antibody or an antigen binding fragment thereof which binds to mammalian ?7 subunit of a nicotinic acetylcholine receptor or its functional variant and which is an agonist of said receptor or variant. Pharmaceutical compositions comprising same. A method of treating a subject suffering from an inflammatory condition comprising administering to said subject an antibody or an antigen-binding fragment as described herein.

Abstract: An antibody or an antigen binding fragment thereof which binds to mammalian ?7 subunit of a nicotinic acetylcholine receptor or its functional variant and which is an agonist of said receptor or variant. Pharmaceutical compositions comprising same. A method of treating a subject suffering from an inflammatory condition comprising administering to said subject an antibody or an antigen-binding fragment as described herein.