摘要:
The invention is directed to an apparatus for finding a functional tissue area in a tissue region. The apparatus has a measurement illuminating device suitable for emitting measurement illumination to the tissue region and a camera which can capture light reflected by the tissue region. The camera has a green channel and/or a blue channel wherein there is a change in an optical property of the light reflected by the tissue region during the stimulation thereof which is undertaken at least intermittently. An evaluation unit captures the change in the optical property only by a signal of the green channel and/or of the blue channel of the camera. A display unit can display an output signal of the evaluation unit for the functional tissue area in the tissue region.
摘要:
An arrangement for adjusting a powder flow in relation to the central longitudinal axis of an energy beam for a working head which is formed for powder application welding. There is a device for the two-dimensional or three-dimensional alignment of the powder supply in relation to the central longitudinal axis of the energy beam in a plane oriented at right angles to the central longitudinal axis of the energy beam. From one side, a linear beam is directed to the region in which the particles of the powdery material meet one another. At right angles thereto, there is arranged an optical detector array for locally resolved detection of intensities connected to an electronic evaluation unit designed to determine the shape, size and/or length of an irradiated region in which locally resolved intensities which exceed a predefinable threshold have been detected with the optical detector array. The irradiated region reaches from the surfaces of particles which the laser beam strikes with reduced power during the adjustment as far as a sub-region of the irradiated region which is arranged in the direction of a workpiece surface of accelerated powdery particles, in which the particles heated by the laser beam move divergently.
摘要:
A method for producing bipolar plates for fuel cells, one metal strip or two metal strips is/are guided through a second or third device. The second device is designed to carry out fine cleaning and/or nitriding of the metal strip, and the third device carries out surface coating on one side of a surface with a metal layer that improves adhesion. Applying a carbon layer in a fourth device. The metal strips are then shaped, during which process channels are formed. The shaped metal strips are moved and positioned such that surface regions come into contact with one another. Joining is performed with a laser beam, which is directed into a gap between the shaped metal strips moved towards one another. The individual steps in the devices, like shaping and joining, are carried out in a continuous process.
摘要:
The invention relates to a method for forming and detecting security elements on the surface of a component and/or in a component, in which at least one layer or at least one region that is preferably formed of a magnetic material or of a material different from the component material is formed on the surface of the component and/or in the component that is formed of a magnetic or of a nonmagnetic material in a locally and geometrically defined manner. At least one ablated track, at least one heat-affected region and/or at least one remelted treatment track are/is formed by a locally and geometrically defined ablation of material or input of energy on/at the surface of a component along a predefined contour corresponding to the respective security feature. In the manufacture of the component, a magnetic material different from the material of the component is introduced into the component at at least one predefined position in a locally and geometrically defined manner by way of a generative production process. To detect the security element, a magnetization unit is used to generate at least one magnetic field penetrating into the component or a magnetic flux is produced inside the magnetization unit that penetrates into the component. To check a security element formed in this way, a detection unit is used to detect the magnetic stray fields occurring on the security element as a result of the at least one magnetic field, and the measurement signals captured by the detection unit are transferred to an evaluation unit having an image-processing or pattern-recognition system. Using the evaluation unit having an image-processing or pattern-recognition system, it is checked, by way of the detected magnetic stray fields, whether or not the detected security element corresponds to a specification.
摘要:
To determine the sex of a bird egg, a hole is produced at the blunt end of the bird egg, wherein the hole affects the calcareous shell and the outer shell membrane, whereas the inner shell membrane remains intact. In the region of the hole at the blunt end, beneath the intact inner shell membrane, at least one blood vessel is registered and the blood therein is excited by means of a preset incident radiation, the back-scattered radiation of which blood is measured, detected and evaluated for the sex determination.
摘要:
The present invention relates to novel HSP27 inhibitors, in particular thymine derivatives according to general formula (VI), (VII) or (VII) and phenothiazine derivatives according to formula (V), and to their use as drugs for the selective inhibition of the heat shock protein HSP27 (HSPB1), in particular for use in the treatment of carcinomas or cystic fibrosis, said inhibitors having a particularly advantageous activity in the lower micromolar or sub-micromolar active ingredient concentration range with respect to HSP27.
摘要:
The invention relates to a method for the Raman spectroscopic, in ovo sex determination of fertilised and hatched birds' eggs (1), wherein the embryo, including the extra-embryonic structures, can move in the egg, and is not yet attached to the shell at the time of measuring. In addition, the following steps are carried out: monitoring the time course of the hatched egg until forming at least one recognisable blood vessel (21); creating a hole (2) in the shell in the region near to the attached bloody vessel, using a hole-generating unit; finding the blood vessel forming in the egg, using a vision system (19, 13) and a coaxial or lateral illumination with light (10a) in the visible wavelength range; positioning at least one blood vessel in the laser focus of a laser source (3), either by moving the egg or moving a lens (6) of a device (5) for introducing the laser light (3a), and detecting the Raman scattered radiation (7); registering the Raman scattered radiation of the irradiated blood vessel using the device for introducing the laser light, and for detecting the Raman scattered radiation, wherein, during the measuring process, a movement of the blood vessel out of the focus can be avoided by tracking using the vision system; evaluating the Raman scattered radiation in an evaluation unit; determining and displaying the sex of the embryo in the bird's egg.
摘要:
The invention relates to an array of several semiconductor components (20, 30), comprising a layer array (40) having a first and a second semiconductor component (20, 30), each being formed in an electrode layer (34) having a drain and a source electrode (22, 23, 32, 33), a gate electrode (21, 31) in a further electrode layer, and a layer stack between the electrode layer (34) and the further electrode layer (21, 31). The invention further relates to a method for producing an array having a first and a second semiconductor component (20, 30) in a layer array (40) and to the application thereof.
摘要:
The invention relates to a method for producing an organic component having a layered arrangement, wherein the method includes the following steps: Preparing a substrate and producing a layer stack having an electrode, a counter electrode and organic layers with a light-emitting zone on the substrate, wherein the organic layers are produced between the electrode and the counter electrode, and in electrical contact with the electrode and the counter electrode, wherein the layer arrangement is produced with a light scattering functional layer containing metal oxide particles distributed randomly in two dimensions. The invention further relates to an organic light-emitting component having a layer arrangement.
摘要:
The invention relates to a bevel gear wheel (1) of a bevel gear unit, each tooth (2) of which comprises a load flank (3) and a non-working flank (4), wherein the teeth (2) have a helical or spiral tooth trace, in particular a curved tooth longitudinal line, and the teeth (2), in particular the upper meshing region of the teeth, have an octoid tooth shape or a spherical involute tooth shape, and the teeth have an excess material quantity (11) on the load flanks (4) in order to reinforce the load flanks (4), in particular such that the axis (9) that runs through the tooth tip-bisecting point A1 of the tooth tip transverse line (23) and through the midpoint of the gear wheel exhibits asymmetry of the teeth (2). The invention further relates to a method for producing a bevel gear wheel (1) according to one of the preceding claims, in which the tooth geometry is produced by a four-axis or multi-axis method, in particular a five-axis method.