摘要:
A microtome system has a cryomicrotome with a sectioning device in which is provided a preparation holder and a knife edge that are guided past one another inside a working space during a sectioning operation, in order to produce thin sections of a preparation retained in the preparation holder. A micromanipulator is operable outside the working space. With the micromanipulator, a tool for retention of a specimen support is positioned proximate the knife edge during a sectioning operation in order to receive the sections that are produced, preferably for substantially stationary retention of the specimen support.
摘要:
A Dewar vessel (1) for automated cryosubstitution or low-temperature substitution is disclosed. The invention further discloses an apparatus (10) for automated liquid transfer for cryosubstitution or low-temperature substitution. The apparatus (10) encompasses a container (50) that encompasses at least one specimen holder (2) and at least one reservoir holder (20); and wherein a movable transfer container (35) for automated exchange of at least one liquid (42) between the at least one specimen holder (2) and the at least one reservoir holder (20) is provided.
摘要:
An apparatus (1) for tissue preparation for the tissue embedding, having a transport plate (15) defining a circumferential edge (15c). At the circumferential edge (15c) several recesses (16) are formed, each of which comprises a plurality of several circular cut outs (16a) being arranged so that it has an opening into the direction of the circumferential edge (15c). The transport plate (15) is surrounded by a housing (5) which defines an inner upper side (8a) on which a heating and cooling device (3) is provided.
摘要:
This invention relates to a cement, which comprises in its main phase of microcrystalline magnesium ammonium phosphate and nanoapatite after hardening and thus at the same time has considerable strength. The material is biologically degradable and is suitable for application in tooth cements, as bone replacement, as bone filler, as bone cement or as bone adhesive.
摘要:
Multimicrocapsules that include encapsulated components of at least one nutritionally, pharmacologically, or medically active functional substance, wherein, within an encapsulation of one or more layers of a first encapsulating material around a common capsule matrix, there are provided a first active functional component in an amount sufficient to provide functional benefits after being ingested by a subject and a component preserving or function enhancing substance present in an amount to preserve and enhance the functional benefits of the active functional component. The encapsulation delays release of the active functional component when the microcapsules are ingested by the subject and provides a synchronous or tuned release of the active functional component and component preserving or function enhancing substance in the intestine of the subject. Also, a process and apparatus for forming such microcapsules.
摘要:
A knife holder (1) for a microtome having a vibrating knife comprises a support element (2) and a clamping element (4) movable relative to the support element (2). The support element (2) is embodied with a support surface (2a) for the knife (3), and the clamping element (4) is embodied with a clamping surface (4a). For clamping the knife (3), the support surface (2a) and clamping surface (4a) are settable at a distance of 0.1 to 1.5 from one another.
摘要:
This invention relates to a cement, which comprises in its main phase of microcrystalline magnesium ammonium phosphate and nanoapatite after hardening and thus at the same time has considerable strength. The material is biologically degradable and is suitable for application in tooth cements, as bone replacement, as bone filler, as bone cement or as bone adhesive.
摘要:
The invention relates to a modular LED lighting unit, comprising a first module (1) to which an AC supply voltage (9) can be supplied and which comprises: a second sub-module (B), at the output of which a DC supply voltage (5) is provided which is galvanically isolated from the AC supply voltage (9), and a control unit (G), further comprising a second module (2) which comprises a further sub-module (C) supplied with the DC supply voltage (5) of the first module (1), in particular a pulsed constant current source, which is controlled by a control unit (E) of the second module (2), an LED module (F) which has at least one LED range (8) and is supplied by the further sub-module (C), inn particular a constant current source, and an emergency light operating circuit which is connected to a rechargeable energy store (ES); and takes over powering the modular LED lighting unit in the event of failure of the AC supply voltage (9).
摘要:
The invention relates to a modular LED-light comprising a first module (1) to which an input voltage (9), preferably an AC-supply voltage, is guided, said first module comprising a second sub-module (B), preferably an insulating unit, a DC voltage separating the supply voltage by a galvanic separation being provided on the outlet of said insulating unit, and a control unit (G). Said LED light also comprises a second module (2), preferably a light management module, comprising an additional sub-module (C) which is fed by the DC-initial voltage of the first module (1), preferably a clocked constant flow source which is controlled by a control unit (E) of the second module (2), and an LED-module (F) which comprises at least one LED path (8) and which is supplied by the additional sub-module (C).
摘要:
A circuit for the power regulation of an LED comprises a converter having a switch. The LED is interconnected in an output circuit, wherein a control unit controls the magnetization of an inductor, in that it actively clocks the switch. A measured actual value representative of the average value of the LED current is returned to the control unit and compared to a reference value.