摘要:
The invention concerns supports (1200) for receiving a plurality of samples, in particular for preserving biological samples at cryotemperatures, said supports comprising a plurality of stacked support plates (11, 12, 13) and linked by an anchoring axis (20). The invention also concerns methods for preserving biological samples at cryotemperatures.
摘要:
Disclosed are methods and collecting devices for recovering blood from an umbilical cord, in which tissue containing the blood from the umbilical cord is subjected to a pressure, under the effect of which the blood from the umbilical cord flows into at least one receiving device (20), inside a chamber (10), the pressure being effective in a uniform manner on the tissue surface in the chamber.
摘要:
In the method proposed, microparticles suspended in a liquid or droplets suspended in a liquid with which they are immiscible are shaped by high-frequency electric fields in a three-dimensional electrode array (11a, 11b, 11c, 11d, 11e, 11f) of a size in the micrometre or submicrometer range and subsequently consolidated by prior art chemical bonding procedures or by physical methods. The disposition, geometry and control of the electrodes determine the shape of the particles. The particles themselves must have a conductivity and/or relative dielectric constant lower than the solution surrounding them. For some, this can be achieved only at certain frequencies in the kHz and MHz band which are determined by the passive electrical properties of the particles and the surrounding solution. The particles or droplets are repelled by the electrodes so that they are shaped in the free solution without making contact with any surface and can then be consolidated. This makes it possible to shape micrometre- and submicrometre-size particles of the kind required in chromatography, affinity biochemistry and medicine, as well as for filter systems.
摘要:
The invention concerns motors in which the torque is produced not by magnetic fields but by dielectric forces. Fields of application are microelectronics and micromechanics. The rotors consist of several dielectrics (2a, 2b) arranged in sectors or disks or which partly or completely surround each other. These motors can be miniaturized to a few νm in size. They are characterized by slow to medium rotational speeds, short start-up phases (ms range and less), extremely low current consumption, simple construction and high running constancy and require virtually no maintenance. The rotation characteristic curve (rotation as a function of field frequency) can be freely chosen within wide limits by variation of the rotor dielectrics (2a, 2b).
摘要:
Un élément micromécanique diélectrique, dont la partie mobile (2) (appelée ci-dessous rotor) est un diélectrique homogène ou hétérogène, a des applications dans les domaines de la microélectronique, de la micromécanique, etc. Cette partie mobile (2) est entraînée par un ou plusieurs vecteurs de champ électrique générés par des tensions commutées au moyen d'agencements d'électrodes et/ou par excitation des électrodes (4a-h, 5a-h) au moyen de tensions déphasées. Les électrodes (4a-h, 5a-h) forment au moins d'un côté du rotor (2) et/ou à l'intérieur du rotor (2) une rangée linéaire ou courbe d'électrodes. Une ou plusieurs électrodes (4a-h, 5a-h) peuvent former des contre-électrodes communes pour une ou plusieurs électrodes individuelles.
摘要:
Die Erfindung betrifft eine Vorrichtung zum Betreiben eines hardware-basierten künstlichen neuronalen Netzwerks, umfassend mindestens ein hardware-basiertes künstliches neuronales Netzwerk (11, 24, 32, 41, 51, 71, 81, 101, 111, 121, 131, 171) dadurch gekennzeichnet, dass die Vorrichtung mindestens eine Störeinrichtung (12, 22, 35, 42, 52a, 52b, 72, 82, 102, 112, 122, 132, 172) zum Einkoppeln mindestens eines Störsignals in mindestens einem Bereich des hardware-basierten künstlichen neuronalen Netzwerks und mindestens eine Koppeleinrichtung (15, 23, 34, 43, 53a, 53b, 73, 83, 103, 113, 123, 133, 173) aufweist, wobei die Koppeleinrichtung zwischen der Störeinrichtung und dem hardware-basierten künstlichen neuronalen Netzwerk angeordnet ist und zum Übertragen des mindestens einen Störsignals von der Störeinrichtung zu dem mindestens einen Bereich ausgebildet ist. Weiter betrifft die Erfindung ein Verfahren zum Trainieren der Vorrichtung. Mit der Erfindung wird ein verbessertes hardware-basiertes künstliches neuronales Netzwerk bereitgestellt, das eine verbesserte Leistungsfähigkeit aufweist.