Abstract: A method of fabricating a device includes providing a substrate of the device, forming a structure of the device, the structure being supported by the substrate, having a semiconductor composition, and including a surface, where nitrogen is present at the surface, and incorporating oxygen into the surface to form a stabilizing layer on the surface.

Abstract: Disclosed are a self-assembled nanoparticle containing a gB protein of an EB virus and a preparation method and use thereof The self-assembled nanoparticle comprises a first polypeptide and a second polypeptide; the first polypeptide comprises the gB protein and a first vector subunit, the second polypeptide comprises a second vector subunit; the first vector subunit is I53-50A1, and the second vector subunit is I53-50B.4PT1. In the self-assembled nanoparticle provided herein, the gB protein of the EB virus is displayed on the surface of the nanoparticle for the first time. The particle size of the self-assembled nanoparticle is larger than that of the antigen gB, and the chemical stability of the self-assembled nanoparticle is higher than that of the antigen gB, and the binding capacity with the neutralizing antibody of the self-assembled nanoparticle are higher than that of the antigen gB.

Abstract: A fuel cell system capable of appropriately regenerating a catalyst on a cathode side or an anode side is provided. A fuel cell system (1) includes regeneration processing means (21, 24, 33, 35) for performing a regeneration process that revives the catalyst in a fuel cell (2) from a state of lowered activity by controlling supply flow rates of fuel gas and oxidant gas supplied to the fuel cell (2), wherein the regeneration process for the catalyst on the cathode (12) side in the fuel cell (2) is performed by the regeneration processing means that decreases the flow rate of the oxidant gas to less than a steady-state requested rate in the relationship with the fuel gas to lower the cell voltage of the fuel cell (2) to a predetermined voltage. The regeneration process for the catalyst on the anode (13) side is similarly performed by the regeneration processing means that decreases the flow rate of the fuel gas to less than a steady-state requested rate in the relationship with the oxidant gas.

Abstract: To provide a fuel cell and an oxidant distributing plate for the fuel cell. A water created in the fuel cell is used to humidify an oxidant gas and/or a fuel flowing in an opposite passage opposite to a MEA. The fuel cell includes a MEA 1, an oxidant distributing plate 3 disposed facing to an oxidant pole for supplying an oxidant gas thereto, and a fuel distributing plate 4 disposed facing to an fuel pole for supplying the fuel thereto. At least one of the oxidant distributing plate 3 and the fuel distributing plate 4 is provided with an opposite passage 31, 41 formed on an opposite surface opposite to the MEA, and a reaction passage 32, 42 formed on a facing surface facing to the MEA, and communicated with the opposite passage 31, 41.

Abstract: A fuel cell (10) includes a lamination (11) of a plurality of unit cells (30), current collector plates (12, 12) arranged at both ends of the lamination (11), end plates 16, 16 respectively provided outside the current collector plates (12, 12) with 5 insulating plates (14, 14) interposed therebetween, and fastening members (18) for fastening the end plates (16, 16) in the laminating direction to apply desired pressing force to the lamination (11). A barcode (41) corresponding to particular information relating to a unit cell (30) is provided on the exposed side surface of a separator (38) of the unit cell (30). According to this fuel cell (10), the barcode 41 can be easily read requiring no disassembly of the fuel cell (10). Moreover, as the information relating to the fuel cell can be obtained from the barcode (41), the information that cannot be determined from outer appearance can be obtained, resulting in improved service operations.

Abstract: A fuel cell humidifier for performing humidification via a water exchange film by bringing together supplied gas to be supplied to a fuel cell, and off-gas discharged from the fuel cell. The fuel cell humidifier includes: a humidification cell having a supplied gas passage for allowing the supplied gas to flow through, an off-gas passage for allowing the off-gas to flow through, and the water exchange film; and a gas flow cell for allowing either the fuel gas or the off-gas to flow through. The invention provides a fuel cell humidifier, and a fuel cell system equipped with the fuel cell humidifier, that can appropriately adjust the humidification value and the heat exchange amount, prevent humidification characteristics from being influenced by ambient temperature changes, and exhibit enhanced reliability, stability and control.

Abstract: The present invention relates to the field of biological engineering technology, specifically, to a SARS virus vaccine with adenovirus carrier, preparation method thereof and use of SARS virus S gene for preparation of severe acute respiratory syndrome (SARS) virus vaccine.

Abstract: A fuel cell system capable of appropriately regenerating a catalyst on a cathode side or an anode side is provided. A fuel cell system (1) includes regeneration processing means (21, 24, 33, 35) for performing a regeneration process that revives the catalyst in a fuel cell (2) from a state of lowered activity by controlling supply flow rates of fuel gas and oxidant gas supplied to the fuel cell (2), wherein the regeneration process for the catalyst on the cathode (12) side in the fuel cell (2) is performed by the regeneration processing means that decreases the flow rate of the oxidant gas to less than a steady-state requested rate in the relationship with the fuel gas to lower the cell voltage of the fuel cell (2) to a predetermined voltage. The regeneration process for the catalyst on the anode (13) side is similarly performed by the regeneration processing means that decreases the flow rate of the fuel gas to less than a steady-state requested rate in the relationship with the oxidant gas.

Abstract: In a fuel cell separator, reaction gas fluid grooves form a serpentine fuel gas flow path wherein a plurality of parallel flow paths reverse directions at multiple stages, and the ratio of a fluid groove width to a ridge width downstream along the fluid path is larger than the ratio upstream along the path. Furthermore, the ridge area per unit area is larger upstream than downstream along the fluid path. Uniformity inside a fuel cell is as a result enhance, to enable more efficient and stable operation.

Abstract: To provide a fuel cell and an oxidant distributing plate for the fuel cell. A water created in the fuel cell is used to humidify an oxidant gas and/or a fuel flowing in an opposite passage opposite to a MEA. The fuel cell includes a MEA 1, an oxidant distributing plate 3 disposed facing to an oxidant pole for supplying an oxidant gas thereto, and a fuel distributing plate 4 disposed facing to an fuel pole for supplying the fuel thereto. At least one of the oxidant distributing plate 3 and the fuel distributing plate 4 is provided with an opposite passage 31, 41 formed on an opposite surface opposite to the MEA, and a reaction passage 32, 42 formed on a facing surface facing to the MEA, and communicated with the opposite passage 31, 41.

Abstract: A fatty acid such as an acetic acid or a butyric acid is added to a fuel gas for a fuel cell as an odorant. This makes it possible to add an odor to the fuel gas without poisoning an electrode catalyst and an electrolyte, and to prevent the odor from remaining in an exhaust gas emitted from the fuel cell.

Abstract: A fuel cell separator is pressed so that one side thereof defines a gas flow channel and that the other side thereof defines a coolant flow channel. A width dG and a cross-sectional area SG of the gas flow channel and a width dW and a cross-sectional area Sw of the coolant flow channel satisfy a relationship: dG?dW or a relationship: SG?SW.

Abstract: A fuel cell (10) includes a lamination (11) of a plurality of unit cells (30), current collector plates (12, 12) arranged at both ends of the lamination (11), end plates 16, 16 respectively provided outside the current collector plates (12, 12) with 5 insulating plates (14, 14) interposed therebetween, and fastening members (18) for fastening the end plates (16, 16) in the laminating direction to apply desired pressing force to the lamination (11). A barcode (41) corresponding to particular information relating to a unit cell (30) is provided on the exposed side surface of a separator (38) of the unit cell (30). According to this fuel cell (10), the barcode 41 can be easily read requiring no disassembly of the fuel cell (10). Moreover, as the information relating to the fuel cell can be obtained from the barcode (41), the information that cannot be determined from outer appearance can be obtained, resulting in improved service operations.

Abstract: A fatty acid such as an acetic acid or a butyric acid is added to a fuel gas for a fuel cell as an odorant. This makes it possible to add an odor to the fuel gas without poisoning an electrode catalyst and an electrolyte, and to prevent the odor from remaining in an exhaust gas emitted from the fuel cell.

Abstract: A fuel cell separator is pressed so that one side thereof defines a gas flow channel and that the other side thereof defines a coolant flow channel. A width dG and a cross-sectional area SG of the gas flow channel and a width dW and a cross-sectional area Sw of the coolant flow channel satisfy a relationship: dG≧dW or a relationship: SG≧SW.

Abstract: A solid polymer electrolyte fuel cell having a coolant circulation circuit is made up of a coolant flow field plate having a surface opposed to a cell surface, an open faced coolant flow channel formed in a major region of the surface of the coolant flow field plate, the open-faced coolant flow channel being divided into a plurality of divisional passages in regional fashion, a coolant inlet port at one end of each of the divisional passages, and a coolant outlet port at the other end of each of the divisional passages. Thus, the major region is divided into the corresponding plurality of divisional regions which can be differentiated in temperature gradient, with the result that the coolant temperature gradient may be made non-linear, excessive local wetting and/or drying at electrodes can be restricted, and the inner resistance of the cell and the current density at the cell surface can be made uniform.

Abstract: A fuel cell wherein (a) an MEA and a separator are layered in a direction perpendicular to gravity, and (b) a fuel gas inlet, a fuel gas outlet and a fuel gas passage, and an oxidant gas inlet, an oxidant gas outlet and an oxidant gas passage are arranged such that a humidity distribution of fuel gas at an anode and a humidity distribution of oxidant gas at a cathode are counter to each other. The fuel cell has a coolant passage, and the humidity distribution and a temperature distribution at the cathode correspond to each other. Each gas passage has a concave portion at a lower wall thereof.

Abstract: A fuel cell has a plurality of unit cells each including electrodes sandwiching an electrolyte membrane in-between, and a plurality of separators (3) each arranged between the unit cells. Each separator (3) has a plurality of contact lugs (65, 75) facing the electrodes and contacting the electrodes at pre-set contact widths and a plurality of fluid ducts (6a, 7a) each having a space between neighboring ones of the contact lugs (65, 75) as a duct width. The contact width of the contact lugs 65 (75) on a side closer to a fluid outlet is set smaller than that of the contact lugs 65 (75) on a side closer to a fluid inlet. Diffusion of an active material in an active material containing fluid into the inside of electrodes on a downstream side of a fluid duct, that is on a side closer to a fluid outlet, is facilitated.