摘要:
What is described is a microscope comprising at least one rotary knob, which is rotatable about an axis of rotation, for operation of actuating elements and comprising a plurality of buttons for control of electrical components, said buttons being arranged in the region of the rotary knob, wherein the buttons comprise operating surfaces, which are located substantially parallel to the axis of rotation and on the outline of the rotary knob, as viewed along the axis of rotation.
摘要:
An Li/LiMn.sub.2 O.sub.4 secondary cell employing a SWING system (i.e., of the "rocking chair cell" type) includes a positive electrode formed as a metal gauze-reinforced, rolled electrode, and a negative electrode formed by impregnating a nickel foam with a paste of Li-intercalating graphite. Such electrodes are from 3 to 4 times thicker than the thin-film electrodes fabricated with prior, knife-coating techniques and employed in wound cells, and are therefore particularly suitable for constructing prismatic cells. By prerolling the as yet empty nickel foam to specific thicknesses, the capacity per unit area of the negative electrode can be tailored to that of the positive, rolled electrode. By rerolling the impregnated nickel foam, optimal energy density and electrode capacity is achieved, at a porosity of from 50 to 60%.
摘要:
A spiral-wound galvanic cell is based upon a lithium system with a nonaqueous electrolyte, and includes a positive electrode, the carrier of which is clamped within the slit of a simple metal splint which serves as the winding mandrel and current collector. Contact with the metal splint is established by a leaf spring associated with the housing cover, which then serves as the positive terminal post for the cell. A high specific contact pressure is developed at this connection by providing the leaf spring with a punched hole which rests on thicker top portions of the metal splint. A small metal plate pressed through the lithium electrode and its separator establishes electrical contact between the lithium electrode and the interior wall of the housing vessel, which then serves as the negative cell pole.
摘要:
The invention relates to a transmitter (18) for a synchronizing assembly of a manual transmission, having a thrust piece (42), a spring (44; 84) that cooperates with the thrust piece (42), and at least one synchronizer ring (30), the thrust piece (42) being acted upon by the spring (44) such that the transmitter (18) can transmit a pre-synchronizing force to the synchronizer ring (30) in the axial direction.
摘要:
The present invention is directed to a transport package which efficiently maintains payload temperature within a predetermined temperature range during delivery through regions having ambient temperatures outside the desired range. The transport package is used for transporting temperature sensitive materials and thermally protecting the materials from cold and hot ambient temperatures in a manner that does not require a power source or other mechanical devices. Aspects of the invention relate to a temperature maintaining packaging system having an outer container, thermal insulation materials and two or more different phase change materials.
摘要:
The superconducting current-limiting device contains at least one coil (61), the conductive track of which is formed from at least one band-shaped superconductor (17), where a holding element (2, 41, 10 51, 62) is located between adjacent coil windings. The holding element (2, 41, 51, 62) is constructed wider than the superconductor (17) in the axial direction of the coil (61). The holding element (2, 41, 51, 62) further includes a flat strip (11) and an undulating strip (12, 42, 52). The flat strip (11) extends essentially parallel to the band-shaped superconductor (17) at an essentially constant distance (22) therefrom. The undulating strip (12, 42, 52) extends essentially parallel to the flat strip (11), and in the longitudinal direction periodically has regions (15, 43, 53) distant from and regions (13) close to the flat strip (11). The regions (13) of the undulating strip (12, 42, 52) near to the flat strip have a mechanical connection (21) to the flat strip (11). The regions (15, 43, 53) of the undulating strip far from the flat strip have recesses (16) of such a kind that an at least approximately close-fitting mounting of the band-shaped superconductor (17) relative to the flat strip (11) is facilitated.
摘要:
A package and method of use for packaging temperature sensitive payloads during transport through environments having extreme temperatures. The package includes a segmented, flexible panel containing a plurality of phase change material segments. A pair of such panels may be used, with each panel being separately thermally preconditioned as a function of anticipated ambient temperature during transport. The panels may be formed by retaining phase change material segments between a pair of flexible sheets.
摘要:
A superconductor has a conductive path with a metallic substrate strip, a super-conductive layer made of a AB2CU3Ox type high-Tc-super conductive material, at least one insulating buffer layer which is arranged therebetween, and a metallic cover layer which is arranged thereon. At least one contacting element made of a normal conductive contacting material and arranged at least on one longitudinal side of the structure between the cover layer and the substrate strip enables a predetermined normally conductive limitation of the current-limiting device to be obtained.
摘要:
An apparatus for delivering current to a cooled electrical device. The apparatus includes at least one electrical line having a first end at a first temperature and a second end at a second temperature being lower than the first temperature. The second end is provided for connection to the cooled electrical device to deliver current to the cooled electrical device. The cooled electrical device is preferable a superconducting device. At least a portion of the electrical line includes a part of a cold head. The part of the cold head is preferably a regenerator or a pulse tube of a pulse tube cooler.
摘要:
An apparatus for treating uremic patients by means of ultrafiltration, in which the withdrawn blood is separated by means of a hemofilter into plasma water and residual blood and the plasma water is exchanged in an exchange device. The latter comprises two chambers I and II, separated from one another by a flexible or movable partition, of which chamber I is filled with fluid and can additionally receive the plasma water, and chamber II contains substitution solution. By exerting pressure in the partition, a suction is caused in chamber I and a pressure in chamber II, so that chamber I can take up the plasma water, while the same volume of substitution solution is released from chamber II.