摘要:
A pressure equalization element for a housing includes a water-impermeable membrane. The membrane is combined with either a pressure relief valve acting in two directions or with a corresponding combination of two pressure relief valves such that a volume of air exchange is reduced. An amount of moisture transported into the housing is thus also reduced.
摘要:
A battery includes a housing in which at least one battery cell and a device configured to dry air present in a housing inner chamber are arranged. The battery also includes a molded body made of a porous, moisture-absorbing material that is arranged such that it extends both into the housing inner chamber and into an outer chamber of the housing and connects said chambers to each other such that moisture is conducted there between. The part of the molded body present in the housing inner chamber is connected to the device configured to dry the air present in the housing inner chamber such that collected water is transferred out of the device to the molded body for air drying.
摘要:
A device for producing a crosslinked substance, e.g., of crosslinked microcapsules (1) of a crosslinkable capsule substance, in particular crosslinked alginates, is described, having a first dispensing device (2) for dispensing a jet of the crosslinkable capsule substance and a crosslinking device for applying a crosslinking agent to the capsule substance, whereby the crosslinking device has a second dispensing device (5) which directs a jet (9, 13) of the crosslinking agent at the jet or at a layer of the capsule substance.
摘要:
Described are methods for electrical treatment of biological cells, in particular using electrical field pulses, involving the steps: arrangement of the cells (1) on apertures (2) of a solid planar carrier element (3) which divides a measuring chamber (10) into two compartments (11, 12); and temporary formation of an electrical treatment field which permeates the cells, wherein an alternating-current impedance measurement takes place on the carrier element (3), and from the result of the alternating-current impedance measurement, a degree of coverage of the carrier element and/or healing of the cells after electrical treatment are/is acquired. Also described are devices for implementing the methods.
摘要:
A method for fabricating a semiconductor memory device is described. An insulating layer is disposed on a semiconductor substrate. A matrix of semiconductor memory elements is disposed in the substrate. The semiconductor memory elements include a plurality of contact holes formed in the insulating layer. One contact hole is formed in the insulating layer for each of the semiconductor memory elements. A bit definition region is disposed in the semiconductor substrate underneath each of the contact holes. A contact plug is disposed in each of the contact holes and is in electrical contact with the bit definition region. The bit definition region is configured such that a contact resistance between the semiconductor substrate and the contact plug defines a bit to be stored in the semiconductor memory elements, An evaluation circuit is connected to and evaluates the contact resistance of the semiconductor memory elements.
摘要:
A device for producing a crosslinked substance, e.g., of crosslinked microcapsules (1) of a crosslinkable capsule substance, in particular crosslinked alginates, is described, having a first dispensing device (2) for dispensing a jet of the crosslinkable capsule substance and a crosslinking device for applying a crosslinking agent to the capsule substance, whereby the crosslinking device has a second dispensing device (5) which directs a jet (9, 13) of the crosslinking agent at the jet or at a layer of the capsule substance.
摘要:
A stable cross-linked alginate gel such as in the form of alginate gel beads encapsulating transplant materials is produced by binding surplus multivalent cations remaining after cross-linking alginate with the cations. A cross-linked alginate gel containing the surplus cations is contacted with a solution of multivalent anions such as sodium sulfate solution to bind the surplus cations. Preferably, a dehydration preventing agent such as protein, bone powder or implant substances is present during cross-linking. A hydrophobic substance such as a perfluoro hydrocarbon or an emulsion may be present during cross-linking to fill spaces between alginate chains. Alginate gel beads produced by the process have long term stability after transplanting.
摘要:
The memory cell configuration has a large number of memory cells provided in a semiconductor substrate and having bit-line trenches which extend in parallel in the longitudinal direction in the main face of the semiconductor substrate, at the bottoms of which in each case a first conductive region is provided, at the peaks of which in each case a second conductive region of the same conduction type as the first conductive region is provided, and in the walls of which in each case an intermediately located channel region is 0 provided; and having word lines which extend in the transverse direction along the main face of the semiconductor substrate, through specific bit-line trenches, to activate transistors provided there. An additional dopant is introduced into the trench walls of the bit-line trenches which are located between the word lines, in order to increase the corresponding transistor turn-on voltage there to suppress leakage currents.
摘要:
A semiconductor read-only memory (ROM) has trenches and vertical transistors. The trenches are filled with insulator material during the manufacturing process. Holes, which are as wide as the trenches are etched into the insulator at regions where word lines and decoder lines are to be provided over the trenches in a later manufacturing step. In a subsequent masking process for changing the conductivity characteristic of channel regions of transistors, channel regions selected according to programming requirements, are doped. The insulator remaining in the trenches prevents that regions under the insulator material are affected by the masking method.
摘要:
A semiconductor device includes a plurality of bitlines arranged in an array, the plurality of bitlines being grouped in pairs and at least some of the bitlines include a twist. A twist region is disposed along the plurality of bitlines wherein the twist region occupies layout area designated for the twists. An equalizer element is disposed in the twist region for equalizing a pair of bitlines.