摘要:
The invention relates to a cryopreservation device and to a method for supplying a sample chamber (10) with a suspension sample (20), especially for the cryopreservation of biological samples. According to the invention, partial samples (21, 22, 23, ) are positioned in the sample chamber (10) in such a way that they are separated by gas-filled free spaces (30).
摘要:
The invention relates to a projection screen for representing static or animated images with the aid of one or several monochromatic laser light sources. Said projection screen is provided with a coating that reflects in a spectrally selective manner and a structured lacquer layer made of a hardened lacquer or a structured film made from a holographic master as a layer reflecting in a spatially selective manner in order to increase spatial selectivity.
摘要:
The invention relates to a composite security system against unauthorised access by damaging the object or objects to be secured, and to a method for the production thereof. The invention is based on a multi-layered system which is connected to the object or objects to be secured or which is integrated therein. The inventive composite security systems can be used in a variety of ways to protect mobile or immobile objects from unauthorised access.
摘要:
The invention relates to highly dense transparent aluminum oxide (alumina) and structures thereof for applications where, e.g. in the lighting industry, a fine crystal size has to be obtained and stabilized for use at temperatures of 800°C or more. The invention also relates to an electric lamp having a discharge tube with a wall of such a ceramic. The alumina according to the invention is provided with an additive and has an average crystal size = 2µm, and a relative density higher than 99.95% with a real in-line transmission RIT = 30%, preferably > 40% and more preferably > 50%, measured over an angular aperture of at most 0.50 at a sample thickness of 0.8 mm and with a single wave-length of light λ of preferably 645nm, and the additive comprises at least one of the substances from the group consisting of oxides of Mg, Y, Er and La.
摘要:
Disclosed is a pipetting device comprising a micropump (200) which is provided with a pump chamber (216) having a first port (222) and a second port (224). Said micropump is also provided with a device (246, 250) for modifying the volume of the pump chamber (216). A first active valve (226) is provided for opening and closing the first port (222) while a second active valve (236) is used for opening and closing the second port (224). The inventive pipetting device further comprises a pipette tip (258) which is connected to the first (222) or second (224) port via a pipette duct.
摘要:
The invention relates to a method for transferring a molecule, molecule complex or microparticle located in a first flow into a second flow, which is flowing adjacent to the first flow and is in contact therewith at least in areas along an interface. The at least two laminar flows have different chemical compositions and, in particular, provoke reactions (e.g. catalysts, buffer solutions) that are incompatible with one another on the molecule, molecule complex or microparticle to the transferred. Due to the laminar flow, the chemical composition in both flows are preserved despite the existence of contact surfaces. In order to transfer the molecule, molecule complex or microparticle, an electric field is applied at least in the contact area of the interface of the at least two flows. This electric field is oriented essentially perpendicular to the direction of flow or to the directions of flow of the at least two flows.
摘要:
The invention relates to a method and a device for identifying a virtual product when said product is distributed to third persons. The virtual product is presented in a digital form and the identification indicates which rights a third party has acquired with respect to the virtual product received. According to the invention, the virtual product is initially made available (S100) in the form of a file by a distributor. Subsequently, an electronic document is made available (S106) for the virtual product thus provided, said document containing information referring to the distribution of the virtual product. Then, the thus produced electronic proof is allocated (S108) to the file which is subsequently distributed (S110) to third persons. If the third party wishes to aquire rights to the received file, the necessary transactions are carried out (S120) using the information associated with the electronic document, so that the distributor of the virtual product can provide the third party with a predetermined right. At the end of said transaction, an electronic receipt is produced (S120) containing information relating to the rights aquired by the third party in the transaction and subsequently, the electronic receipt is allocated to the associated file with the associated document, received by the third party.
摘要:
The invention relates to an input device, a system and a method especially for controlling an object that can be displayed on a display. According to the invention, a center section and associated actuating members have a substantially similar cross-section or diameter and are disposed one behind the other and/or the actuating members can be additionally elastically deformed, thereby allowing for an easy handling of the device and system even in complicated control situations.
摘要:
The invention relates to a solar cell and to a method for the production thereof, said solar cell having at photovoltaic layer (A) made of an organic material, especially a polymer material, which absorbs light and in which electron-hole pairs can be produced. The solar cell also comprises two opposite layer surfaces, one of which is connected to at least one layer (p) receiving the holes made in the photovoltaic layer (A) while the other layer surface is connected to at least one layer (n) receiving the electrons produced in the photovoltaic layer (A). The solar cell further comprises electrode areas En and Ep. The electrode area (Ep) electrically contacts the layer (p) receiving the holes while the other electrode area (En) electrically contacts the layer (n) receiving the electrons. The invention is particularly characterized in that the surface substrate (S) has opening structures (O) that project through laterally from the front side to the rear side.
摘要:
The invention concerns a profiled part and aggregates for making same. The aggregates contain a material for plastic matrix technique and an adherence promoter. Regenerated cellulose fiber elements are incorporated in the matrix material. The characteristic profile of a profiled part made from such aggregates corresponds substantially to that of profiled PC/ABS parts, the profiled part of the invention being, however, capable of being produced at a more advantageous cost, being more recyclable and being, moreover, capable of being shaped at lower temperatures.