Abstract: A device for performing a precision movement comprising a plate composed of piezoelectric material and comprising electrodes which are provided at mutually opposite and preferably parallel planes, are connectable to a controlled voltage source having electrical voltage and in this case bring about a change in the form and/or mass of the plate is characterized in that at least one of the electrodes is designed in an elastic fashion to form a base module.

Abstract: A method for producing nanowires from piezoelectric aluminum nitride is provided. Nanowires formed from cubic AIN having a diameter of 10-20 A and a length of 1000-1500 A are obtained from a batch of AI+2-10% by volume AIH3 at a temperature of 1500-2300 K in a gaseous environment of N2+(3-5% by volume NH3) at a pressure of 200-2000 MPa.

Abstract: A device for performing a precision movement comprising a plate composed of piezoelectric material and comprising electrodes which are provided at mutually opposite and preferably parallel planes, are connectable to a controlled voltage source having electrical voltage and in this case bring about a change in the form and/or mass of the plate is characterized in that at least one of the electrodes is designed in an elastic fashion to form a base module.

Abstract: An optical adapter device is provided to increases the luminous efficiency of a light emitting diode without reducing service life. The optical adapter device includes a transparent material with an increased refractive index, and an additional layer between the emitting surface of the semiconductor and said optical adapter device. The additional layer is formed from a material with a lower modulus of elasticity than the light emitting diode, and has a thickness that allows the tunneling of the light emitted from the light emitting diode.

Abstract: An optical adapter device is provided to increases the luminous efficiency of a light emitting diode without reducing service life. The optical adapter device includes a transparent material with an increased refractive index, and an additional layer between the emitting surface of the semiconductor and said optical adapter device. The additional layer is formed from a material with a lower modulus of elasticity than the light emitting diode, and has a thickness that allows the tunneling of the light emitted from the light emitting diode.

Abstract: A converter reactor is provided. The converter reactor includes a low-pressure housing in which an active zone of the reactor is located. The reactor includes vertical columns of a side reflector and a moderator, channels for heat carrier flow and fuel elements having fuel rods in the central openings of the moderator columns. The low-pressure housing is made of a high-strength titanium alloy with an inner protective boron nitride composite material. The heat carrier in which the active zone is immersed is polysilazane-based. The interior of the fuel rods is filled with a uranium-plutonium melt. Cavities of the upper ends of the fuel rods communicate with fuel element cavities and fission product collectors of the fuel elements at the same pressure.

Abstract: A method for producing nanowires from piezoelectric aluminium nitride is provided. Nanowires formed from cubic AIN having a diameter of 10-20 A and a length of 1000-1500 A are obtained from a batch of AI+2-10% by volume AIH3 at a temperature of 1500-2300 K in a gaseous environment of N2+(3-5% by volume NH3) at a pressure of 200-2000 MPa.

Abstract: An assembly and to a device for obtaining monochromatic neutron radiation is provided. In order to realize a nuclear synthesis reaction, a starting material is introduced into a pressure booster (gas multiplier) and compressed to the pressure at which the synthesis reaction begins. The resulting neutron radiation passes through the seals of the multiplier elements and an outlet channel in the plug of the pressure chamber (gasostat) vessel, then onto a monochromator and further onto the irradiated object.

Abstract: An imaging system is provided, having a housing, an inlet opening receiving radiation from objects and an optical system. The optical system includes a reception channel for visible radiation, an infra-red radiation channel, a channel of the laser range finder having a laser radiation source, a photoreceptor and spectral splitters. All channels are optically coupled to one another. An optical element made from a material that transmits the radiation in the working range of the photoreceptor and is inserted into the inlet opening to hermetically seal the system. The reception channel for the visible radiation and the infra-red radiation channel are constructed as an optoelectronic multichannel system having at least two channels, the optical axes of which coincide and are situated inside the inlet opening.

Abstract: A system and method are provided for marking valuable articles, particularly precious stones and here in particular cut diamonds (brilliants) and uncut diamonds. An identification marking that is invisible to the naked eye is applied to the article, and data associated with the identification marking is stored for subsequent use in determining the authenticity of the marking. The marking is applied by irradiating a surface of the article with laser light having a wavelength of less than 400 nm and applying ultrasonic oscillations during laser irradiation. A further laser light having a wavelength of more than 500 nm may also be applied to the surface. At least two interference images are generated using at least two different sounding radiation wavelengths for storage, along with an incidence angle of the sounding radiation. The stored data may subsequently be compared to authenticity-checking interference images to determine the authenticity of the identification marking.

Abstract: A device for performing a precision movement comprising a plate composed of piezoelectric material and comprising electrodes which are provided at mutually opposite and preferably parallel planes, are connectable to a controlled voltage source having electrical voltage and in this case bring about a change in the form and/or mass of the plate is characterized in that at least one of the electrodes is designed in an elastic fashion to form a base module.