摘要:
A fuel cell stack is disclosed having a number of stacked fuel cells, each having in series an anode-facing end plate, an anode, an ion-exchanging layer, a cathode and a cathode-facing end plate. The stack includes at least one conductive and flexible intermediate layer between elements of the stack. The intermediate layer is deformable implemented in terms of its thickness. The intermediate layer abuts and interacts, in a fluid-tight manner, with the end plates. The intermediate layer is further disposed between at least one of the anode-facing end plate and the cathode-facing end plate of adjacent fuel cells, an end plate of a stack and a cooling plate attached to said end plate and an end plate of the stack and a cathode-facing end plate.
摘要:
A fuel cell has an electrochemical process area having a cathode area, an anode area and an ion-exchanging membrane that separates these areas. The cathode area has a gas passage way having a gas inlet, a gas channel and a gas outlet, wherein the gas passage way is for an oxygen-containing gas to flow from the gas inlet through the gas channel to the gas outlet. The fuel cell includes further a humidity transfer area having a dehumidifying zone, a humidifying zone and a humidity transfer membrane that separates these zones. An exhaust channel connects the gas outlet to the dehumidifying zone, and an inlet channel connects the gas inlet to the humidifying zone. Humidity is extracted from the oxygen-containing gas in the dehumidifying zone, and added to the oxygen-containing gas in the humidifying zone via the humidity transfer membrane.
摘要:
A fuel cell has an electrochemical process area having a cathode area, an anode area and an ion-exchanging membrane that separates these areas. The cathode area has a gas passage way having a gas inlet, a gas channel and a gas outlet, wherein the gas passage way is for an oxygen-containing gas to flow from the gas inlet through the gas channel to the gas outlet. The fuel cell includes further a humidity transfer area having a dehumidifying zone, a humidifying zone and a humidity transfer membrane that separates these zones. An exhaust channel connects the gas outlet to the dehumidifying zone, and an inlet channel connects the gas inlet to the humidifying zone. Humidity is extracted from the oxygen-containing gas in the dehumidifying zone, and added to the oxygen-containing gas in the humidifying zone via the humidity transfer membrane.
摘要:
Strains of Leuconostoc mesenteroides ssp. cremoris which provide, upon culturing, dextran, and the strains include deposited strains CNCM I-1692 and CNCM I-1693.
摘要:
The present invention relates to the use of dedifferentiated plant cells in cosmetic preparations for protecting of stem cells against intrinsic and extrinsic stress factors, in particular for promoting proliferation of stem cells and for protecting them against apoptosis. In particular, the invention relates to the use of dedifferentiated plant cells from fruits of Malus domestica (Apple) cultivar Uttwiler Spaetlauber. Further, the invention relates to a method for cultivating of dedifferentiated plant cells, as well as to the preparation of extracts of plant cell cultures which are suitable for such applications.
摘要:
The present invention relates to the use of dedifferentiated plant cells in cosmetic preparations for protecting of stem cells against intrinsic and extrinsic stress factors, in particular for promoting proliferation of stem cells and for protecting them against apoptosis. In particular, the invention relates to the use of dedifferentiated plant cells from fruits of Malus domestica (Apple) cultivar Uttwiler Spaetlauber. Further, the invention relates to a method for cultivating of dedifferentiated plant cells, as well as to the preparation of extracts of plant cell cultures which are suitable for such applications.
摘要:
A mixing capsule for a two-component mixture comprises a preferably cylindrical container part. An axially displaceable piston is guided within the container part. An opening is provided on the front face of the piston and leads into a liquid receptacle with a burstable wall or membrane. The membrane closes the opening in the non-activated condition of the capsule. The hollow between the front faces of the container part and the piston constitutes a mixing chamber. The activation part can be displaced by means of activation pin that closes the discharge nozzle in the non-activated condition. In the activated condition of the capsule the activation part is to all intents and purposes completely accommodated within the liquid receptacle.
摘要:
A food or cosmetic composition containing a dextran composition synthesized by a dextran sucrase enzyme produced by a strain of Leuconostoc mesenteroides ssp. crenzoris. The food or cosmetic composition is prepared by fermenting a food or cosmetic composition containing sucrose with the strain, or the strain is cultured in a culture medium containing sucrose and the dextran composition produced is incorporated into a food or cosmetic substance.
摘要:
A modular room divider system has plural upright juxtaposed panels having cylindrical anchor receiving apertures disposed about upright axes in the panels top and bottom surfaces. A coupling assembly has a pair of spaced apart anchors mating with the anchor apertures. Threaded portions having opposingly directed right and left hand threads extend inwardly from the anchors and are centrally engaged by an internally threaded sleeve having adjacent right and left hand threaded portions. The sleeve has a square prismoidal exterior surface and is traverseable by a notched wheel having a mating central aperture. A channel extends from the anchor apertures to the edge of each channel.In use, two panels are assembled by placing them in juxtaposition. The coupling assembly is placed in alignment over the panels, the anchors being lowered into the anchor apertures and the threaded portions over corresponding channels. The wheel is rotated causing opposing axial movement of the threaded portions, thereby moving the anchors and the panels toward each other, the anchors distributing the tensile load upon tightening transversely across the panel. A similar coupling assembly is placed on the bottom of the panels and similarly tighted.