Abstract: A rollator is disclosed in this invention. The rollator includes: a base frame; front wheel assemblies and rear wheel assemblies respectively mounted on both sides of the base frame; an inverted U-shaped supporting pipe; a H-shaped armrest bracket; connection pieces having block grooves thereon; a slide control lever for cooperating with the block grooves; a seat plate; a spring element; wherein the base frame is provided with unidirectional hinged seats; both bottom ends of the supporting pipe are hinged to the base frame, and both side arms of the supporting pipe are provided with slide holes facing each other; the armrest bracket has bottom portions hinged to the unidirectional hinged seat. The rollator has a simple structure and can be used for various situations in both folded and unfolded state.

Abstract: Power conservation for mobile device displays. An embodiment of a method includes generating display images for a display screen of a mobile device, and transitioning the mobile device to a reduced power consumption state. The reduced power consumption state includes reducing one or more illumination factors for the display screen; and reducing one or more animation factors for the display screen.

Abstract: The present utility model disclosed a main support frame, which has two bushings each set on the right and left side of said main support frame respectively; two supporting pipes, each inserted in one of the bushings of the main support frame; two P-shaped armrests, each connects with one of the supporting pipes; two pairs of front-wheel assembly and rear wheel assembly, each pair of front-wheel assembly and rear wheel assembly is connected with the main support frame; and a seat component comprising a seat body and a folding mechanism, said seat component can be folded in the middle and is set between the left side and right side of main support frame. Said folding mechanism consists of a first branch pipe and a second branch pipe, which hinge joint with each other in the middle, one end of the first branch pipe and the second branch pipe hinge joint with the left side and right side of the main support frame respectively, the other end connect with the two ends of said seat body respectively.

Abstract: The present utility model disclosed a main support frame, which has two bushings each set on the right and left side of said main support frame respectively; two supporting pipes, each inserted in one of the bushings of the main support frame; two P-shaped armrests, each connects with one of the supporting pipes; two pairs of front-wheel assembly and rear wheel assembly, each pair of front-wheel assembly and rear wheel assembly is connected with the main support frame; and a seat component comprising a seat body and a folding mechanism, said seat component can be folded in the middle and is set between the left side and right side of main support frame. Said folding mechanism consists of a first branch pipe and a second branch pipe, which hinge joint with each other in the middle, one end of the first branch pipe and the second branch pipe hinge joint with the left side and right side of the main support frame respectively, the other end connect with the two ends of said seat body respectively.

Abstract: A package for cigarettes, including a sanitary cigarette case which can avoid filter tips from being contacted by fingers, so preventing germs on the fingers from spreading into the mouth via the filter tips. The case can include a case body and a case cover and an opening surface of the case body that is parallel with the longitudinal axis of cigarettes. The opening end of the case body can be covered by the case cover, which has a concavity in its longer face. An advantage of this cigarette case is that it is designed so that person can grasp the middle of a cigarette when they remove the cigarette from the cigarette case, thereby preventing the filter tips from being contacted by the fingers, and preventing germs on the fingers from spreading into the mouth via the filter tips. This cigarette case can have a sanitary, convenient, elegant operation, simple manufacturing process and low cost.

Abstract: A method for preparing polybenzimidazole or polybenzimidazole blend membranes and fabricating gas diffusion electrodes and membrane-electrode assemblies is provided for a high temperature polymer electrolyte membrane fuel cell. Blend polymer electrolyte membranes based on PBI and various thermoplastc polymers for high temperature polymer electrolyte fuel cells have also been developed. Miscible blends are used for solution casting of polymer membranes (solid electrolytes). High conductivity and enhanced mechanical strength were obtained for the blend polymer solid electrolytes. With the thermally resistant polymer, e.g., polybenzimidazole or a mixture of polybenzimidazole and other thermoplastics as binder, the carbon-supported noble metal catalyst is tape-cast onto a hydrophobic supporting substrate. When doped with an acid mixture, electrodes are assembled with an acid doped solid electrolyte membrane by hot-press. The fuel cell can operate at temperatures up to at least 200° C.

Abstract: A package for cigarettes, in particularly, a sanitary cigarette case which can avoid filter tips from being contacted by fingers, so avoiding germs on fingers from spreading into mouth through filter tips, includes a case body and a case cover and is characterized in that the opening surface of the case body is parallel with the longitudinal axis of cigarettes, the opening end of the case body is covered by the case cover, which has a concavity in its longer face. The advantage of this cigarette case is that it is designed in such a configuration so that person can only put the middle of cigarette when they nick cigarette out of cigarette case, thereby avoiding filter tips from being contacted by fingers, so preventing germs on fingers from spreading into mouth through filter tips. Therefore, this cigarette case has sanitary, convenience, elegant operation, simple process and low cost.