Abstract: A vacuum switching valve and a suction system having the same. The vacuum switching valve comprises: a valve body, comprising a first end and a second end, the second end being provided with an air inlet, an air outlet and a through hole; a valve element movably arranged in the valve body; a cylinder, the cylinder being connected to the first end and the valve element, the cylinder drives the valve element to move in the valve body, to close or open the air inlet; a stopper passing through the through hole, the stopper comprising a third end and a fourth end, the third end being connected to the valve element, the fourth end being located on the side of the through hole away from the valve element.

Abstract: A circuit includes a first transistor, a second transistor, a third transistor and a fourth transistor. The first transistor has a first end and a second end. The second transistor has a first end and a second end, wherein the first end of the second transistor is coupled to the first end of the first transistor. The third transistor has a first end and a second end, wherein the second end of the third transistor is coupled to the second end of the second transistor. The fourth transistor has a first end coupled to the second end of the first transistor. The fourth transistor has a bottom gate and an oxide semiconductor layer, and the second transistor has a top gate and a silicon semiconductor layer.

Abstract: An assembly structure for an open-type tablet computer is disclosed. The open-type tablet computer comprises a computer main body which comprises base, a host system device, and a screen module exposed out of a front opening of the base. The assembly structure comprises locking members formed on a connection part around the base. When the computer main body is mounted on a fastening structure, the base can be embedded into a mounting hole of a body from the front of the fastening structure, and the connection part is stopped by the surface of a fastening part. The locking members can be inserted into a through hole of the body, respectively, and multiple jointing members can be locked, from a rear of the fastening structure, with the locking members, respectively. Therefore, the computer main body can be quickly aligned and assembled on with the fastening structure without extra mounting accessory.

Abstract: A method for adhesion of wound electrodes or electrode lamination for use in a lithium-ion secondary battery, comprising acts of dissolving a polymer applied on electrode sheets in a selected solvent; applying the solvent containing polymer on surfaces of the electrode sheets; and vaporizing the solvent by heating to laminate electrode sheets together is disclosed.

Abstract: The present invention discloses a method for preparing a lithium battery with self-adhesive polymer electrolyte. The characteristic of the method is to pour a polyacrylonitrile-based solution into a battery with electrode plates and separators. An organic solvent is then poured into the battery, during which time the polyacrylonitrile-based solution is phase-separated, resulting in the adhesion of the electrode plates and separators.

Abstract: A method for adhesion of wound electrodes or electrode lamination for use in a lithium-ion secondary battery, comprising acts of dissolving a polymer applied on electrode sheets in a selected solvent; applying the solvent containing polymer on surfaces of the electrode sheets; and vaporizing the solvent by heating to laminate electrode sheets together is disclosed.

Abstract: The present invention discloses a method for preparing a lithium battery with self-adhesive polymer electrolyte. The characteristic of the method is to pour a polyacrylonitrile-based solution into a battery with electrode plates and separators. An organic solvent is then poured into the battery, during which time the polyacrylonitrile-based solution is phase-separated, resulting in the adhesion of the electrode plates and separators.

Abstract: A polycarbonate electrolyte comprising a polycarbonate membrane matrix and a lithium salt-containing electrolytic solution impregnated into the polycarbonate membrane matrix.

Abstract: A process for fabricating Thallium-based superconducting tapes comprising the steps of: (1) preparing a powder mixture having a nominal composition of (Tl.sub.1-x-y Bi.sub.y Pb.sub.z)(Ba.sub.2-z Sr.sub.z)Ca.sub.2 Cu.sub.3 O.sub.9 ; (2) placing the powder mixture into a silver tube and drawing and/or swaging the silver tube containing the powder mixture into a wire having a pre-determined diameter, wherein x and y are real numbers between 0.2 and 0.4, and z is a real number between 0 and 2; (3) rolling the wire into a tape having a pre-determined thickness; and (4) subjecting the tape to a two-stage single-sintering process at two respective sintering temperatures. The two-stage single-sintering process of the present invention allows Thallium-based superconducting tapes to be fabricated which exhibit substantially increased critical current density, without causing a substantially increased cost and complexity, as do other prior art processes, such as the double-sintering process.

Abstract: Unexpected results were obtained when Tl-1223 and Tl=-2223 superconductive materials were annealed at respectively pre-determined annealing temperatures. The optimum annealing temperatures for Tl-1223 and Tl-2223 superconductive materials are found to be 860.degree. C. and 820.degree. C., respectively. By incorporating the optimum annealing temperature and an optimum annealing envirenment, which is expressed in terms of oxygen partial pressure, into the manufacturing process, the present invention presents a method which can substantially increase the critical temperature of thallium based superconductive materials with greatly reduced annealing time and with improved reproducibility, and is thus superior to any method disclosed in the prior art.