Abstract:
Corneal epithelial pocket formation systems include a cutting head and a blade coupled to the cutting head. The blade is coupled to the cutting head at an orientation that is effective in maintaining a viable separated pocket defining portion of corneal epithelium of an eye of a patient during formation of a corneal epithelial pocket of the eye. The blade includes a cutting edge surface at its distal end. The cutting edge surface is effective in separating the corneal epithelium from the underlying Bowman's membrane of the eye without leaving residual corneal epithelial cells in contact with Bowman's membrane that may result in corneal epithelial cell growth between a corneal implant located in the corneal epithelial pocket and the underlying Bowman's membrane. Versions of the present systems include spring loaded blade holders, which may be removable from the cutting head. Versions also can include applanators. Packages containing spring loaded blade holders and blades, and disposable blades useful with the present systems are also described. The components, including disposable components, can be used to produce the present systems, and the present systems and components can be used in methods of enhancing or correcting a patient's vision.
Abstract:
There is proposed a method for producing a plastics component, preferably a fibre-reinforced component, an injection device (1) for carrying out the method and a manufacturing system which comprises the injection device (1) and a tool (5), wherein the method comprises the following method steps: A) injecting at least one liquid material by means of at least the injection device (1) into a cavity (5a), which cavity is formed by the tool (5); B) ejecting the produced component from the tool (5) by means of at least one ejection element (2, 9, 11); wherein the method is characterized in that in method step B at least a part-element of the injection device (1) is used as the ejection element (2, 9, 11) and is moved in relation to the tool (5).
Abstract:
The invention relates to a method and a device for converting thermal energy into electric energy. An electrochemical concentration cell is operated at a high temperature while supplying heat. Using a mechanical compressor, hydrogen or oxygen is compressed at a low temperature and subsequently supplied to the concentration cell by way of a heat exchanger. The partial pressure difference present produces a flow of ions, which generates an electrical current that can be tapped at the electrodes. The mechanical compressor is operated with a portion of the electric energy. The benefits of fuel cells and Stirling engines are merged in said new cycle.
Abstract:
The invention relates to a method and a device for converting thermal energy into electric energy. An electrochemical concentration cell is operated at a high temperature while supplying heat. Using a mechanical compressor, hydrogen or oxygen is compressed at a low temperature and subsequently supplied to the concentration cell by way of a heat exchanger. The partial pressure difference present produces a flow of ions, which generates an electrical current that can be tapped at the electrodes. The mechanical compressor is operated with a portion of the electric energy. The benefits of fuel cells and Stirling engines are merged in said new cycle.
Abstract:
This invention relates to histone methylation, in particular to the characterisation of a human polypeptide which is found to be responsible for the methylation of lysine 9 of histone H3. Various methods and means related to the methylation of this residue and its effect on transcriptional activation are provided.
Abstract:
The invention relates to a drive unit (1) for an electric vehicle having an electric machine (4) for driving an axle of the electric vehicle, which is arranged in a housing (Ia), and having a drive axle (13) for transmitting a torque from the electric machine to the axle of the electric vehicle, and having at least one bearing device for supporting the drive unit on a bodywork of the electric vehicle, and is characterized in that the housing (Ia) of the drive unit (I) is embodied as a bearing device for the drive unit on a bodywork of the electric vehicle. The invention likewise relates to a method for defining a drive unit in an electric vehicle and to a drive system for an electric vehicle having a drive unit.
Abstract:
The invention relates to a method and device for the coordinate operation of vehicle doors of railborne or guided vehicles and corresponding platform guiding systems, especially platform doors, which are controlled by at least one central control device for one vehicle each and at least one central control device for one platform each. The invention is characterized in that the door availability of the vehicle detected by the respective control devices and the availability of elements of the corresponding platform guiding system are bidirectionally transmitted via a radio-controlled transmission channel between the vehicle and the platform prior to the arrival of the vehicle at the respective next platform, these data are edited in the control devices and are transmitted to the passenger information system in the vehicle and at the platform. The inventive device is characterized by control devices (TDC; PSDC) which are adapted to process data on the condition of the doors or the elements of the platform guiding system and to exchange these data bidirectionally via a radio-controlled transmission channel over long distances between the vehicle and the respective next platform.