Abstract: A method for producing high-molecular poly-L lactic acid by directly polycondensating L-lactic acid using a melt-phase condensation and a subsequent solid-phase condensation using acidic and supported solid catalysts. A method of using an acidic and supported solid catalyst for producing high-molecular poly-L lactic acid by directly polycondensating L-lactic acid, preferably supported and calcined zirconium sulfate is also disclosed.

Abstract: Tube-like device (100) for transferring ions generated by means of ion generation source (4) comprising a cylindrical middle portion (104) and an inlet portion (102) for introduction of the ions in at least one ion cloud into the cylindrical middle portion (104), wherein a flow direction of the ions is along a longitudinal axis (L) of the tube-like device (100), wherein the inlet portion (102) is formed tapering funnel-like towards the cylindrical middle portion (104).

Abstract: The invention relates, inter alia, to a method for producing an electro-optical component (10, 200) suitable for emitting electromagnetic radiation (120), wherein in the method a first intermediate layer (60) is applied on a carrier, a second intermediate layer (70) is applied on the first intermediate layer, and after the second intermediate layer has been applied, the buried first intermediate layer is locally modified, wherein as a result of the local modification of the buried first intermediate layer in a lateral direction a refractive index jump is produced which brings about a lateral wave guiding of the electromagnetic radiation (120) in the unmodified region of the first intermediate layer.

Abstract: An electro-optic modulator for the modulation of optical radiation of a predetermined wavelength, the electro-optic modulator having at least one optical resonator in which a standing optical wave can be formed for the predetermined wavelength. In the resonator, at least two doped semiconductor sections—as seen in the longitudinal direction of the resonator —are arranged at a distance from one another, and the at least two doped semiconductor sections respectively lie locally at an intensity minimum of the standing optical wave.

Abstract: In a clarification method for a beverage liquid, in particular for producing beer, the beverage liquid, after it passes through a fermentation stage, is subjected to a clarification which serves for removing active haze components from the beverage liquid, and fed to a maturation vessel in which the beverage liquid is stored for a maturation time. In a further method step, the beverage liquid is charged with at least one pectin-containing clarification agent for increasing a filtration performance. In this case it is provided that the pectin-containing clarification agent is introduced into the beverage liquid on the path from the fermentation stage to the maturation vessel and the pectin present therein, before the feed to the maturation vessel, is at least for the most part removed again from the beverage liquid.

Abstract: Device comprising a high brightness broad-area edge-emitting semiconductor laser and method of making the same. The device includes an edge-emitting semiconductor laser, said laser having a multi-layered waveguide, and said waveguide comprising at least one layer with an active region that emits light under electrical injection, and at least one aperiodic layer stack.

Abstract: An electronic unit is produced including at least one electronic component at least partially embedded in an insulating material. A film assembly is provided with at least one conductive layer and a carrier layer. The conductive layer includes openings in the form of holes for receiving bumps, which are connected to contact surfaces of the at least one electronic component. The at least one component is placed on the film assembly such that the bumps engage with the openings of the conductive layer. The at least one component is partially embedded from the side opposite of the bumps into a dielectric layer. The carrier layer of the film assembly is removed such that the surface of the bumps is exposed. A metallization layer is then deposited on the side of the remaining conductive layer having the exposed bumps and so as to produce conductor tracks that overlap with the bumps.

Abstract: Method and device for processing pixels contained in a video sequence including processing the pixel amplitude of at least one Image pixel contained in a current frame of a video sequence. The method includes the steps of constructing an individual motion trajectory including motion-shifted versions of the image pixel over a plurality of neighboring frames, and processing the pixel amplitude based on the individual motion trajectory. The step of the constructing the individual motion trajectory includes the steps of choosing at least one image pixel of the current frame as a start pixel of the individual motion trajectory, and adding motion-shifted versions of the image pixel of preceding find/or subsequent frames to the individual motion trajectory.

Abstract: The invention relates to an apparatus for picking up particles from the surface of a water system, in particular particles of dirt, with a float (1), in which a particle separation chamber (8) is formed, into which particle-containing water can flow via an inflow opening (7), and out of which water at least partially freed from the particles can flow via an outflow opening (9), wherein the inflow opening (7) is provided with an inflow flap means and the outflow opening (9) is provided with an outflow flap means for opening and closing of the opening (9).

Abstract: The invention relates to a method for operating a cooling system, in which a cooling agent is prepared in a reservoir of an evaporator device (1) of a single- or multi-stage sorption cooling system, a fluid to be cooled is cooled by having a heat exchanger of the evaporator device (1) effect a cooling heat transfer from the fluid to be cooled to the cooling agent for cooling purposes, and the cooling heat transfer causes the cooling agent to at least partially evaporate on the heat exchanger, and the evaporated cooling agent is relayed to a liquefier device (2), wherein the cooling heat transfer is improved by conveying external thermal energy provided by an external heat source (10) to the cooling agent, specifically in addition to and separately from the cooling heat transfer, and thereby initiating bubble formation that supports cooling heat transfer in the cooling agent in the reservoir, specifically by inducing bubble formation in conjunction with supplying the external thermal energy or intensifying bub

Abstract: Resource management such as network radio resource management in wireless networks, is described in connection with different aspects.

Abstract: The invention relates to a valve for controlling a flow of a fluid through a fluid channel, comprising a tube of flexible material in which a section of a fluid channel is formed, a valve component assigned to the tube, a squeeze element, which is formed and configured on the valve component by pressing against an outside surface of the tube to control a flow of a fluid through the fluid channel, optionally up to the closing of the fluid channel, a guide section, which is formed on the valve component, and a guide assigned to the valve component, which cooperates with the guide section in a relative movement of the guide and valve components relative to one another in the longitudinal direction of the tube, such that the squeeze element is displaced in the relative movement, changing the pressure on the outside surface of the tube and thus changing the flow through the fluid channel.

Abstract: An embodiment of the invention relates to a method for providing a compressed video bitstream related to consecutive pictures of a video sequence, wherein the pictures are defined by pixels, said method comprising the steps of: (a) applying at least one higher-order motion model to a motion vector field and generating at least one higher-order motion parameter set for said motion vector field, wherein said motion vector field comprises a plurality of first motion vectors, each first motion vector being assigned to a pixel block and describing the local displacement of the pixel block from the preceding picture to the consecutive picture, and wherein each pixel block comprises a plurality of pixels; (b) calculating a second motion vector for each pixel block based on the higher-order motion parameter set; (c) calculating the deviation between the first motion vector and the second motion vector for each pixel block; and (d) generating a video bitstream comprising the higher-order motion parameter set, and f

Abstract: An optical pulse delay generator is provided. The optical pulse delay generator includes a first optical converter which is dispersive and separates the spectral components of the incoming optical pulse in a time domain. The first optical converter generating a converted optical signal. The optical pulse delay generator also includes a modulator to modulate the converted optical signal and to generate a modulated optical signal and a second optical converter connected to the modulator. The second optical converter being dispersive for overlaying the previously separated spectral components in the time domain and generating the delayed optical output pulse. The dispersion imposed by the second optical converter has the same amount of dispersion, but the opposite sign, as the first optical converter. At least one of the first and second optical converter includes at least two waveguide resonator rings which differ in their optical length.

Abstract: The invention relates to an apparatus for picking up particles from the surface of a water system, in particular oil, algae or dirt particles, comprising a particle separation space, which is connected to an inflow opening through which water that contains particles can enter the particle separation space, a particle-collecting space into which particles that have been separated from the water that contains particles reach from the particle separation space via a separation mechanism and an adjustment mechanism, which is configured to regulate a filling level of the water that contains particles in the particle separation space. In addition, the invention relates to a method for picking up particles, in particular oil, algae or dirt particles, from the surface of a water system.

Abstract: The invention relates to a method for influencing the selection of a type and form of a circuit implementation in at least one layer in a given integration task for at least one integrated circuit in a wafer composite, a module on a 2-dimensional carrier substrate, or a compact module. In one embodiment, a plurality of electric or electronic components are spatially arranged and to be electrically connected. Completed solutions x are stored in a database, and each of the completed solutions includes properties for the given integration task. The completed solutions define a destination space from which a solution is selectable by operating elements and determines a type and form of circuit implementation as a result of the given integration task, and aggregates the plurality of electric and electronic components in one of a plurality of integration technologies.

Abstract: A self-contained circulation system, which supports the formation of capillaries in capillary growth sections and allows the formation of micro organoids and/or micro tissue sections for monitoring the effect of one or more test compounds and determining efficacy, side-effects, biosafety, metabolites, mode of action or organ regeneration as well as methods of establishing such micro organoids and/or micro tissue in the self-contained circulation system.

Abstract: An ultraviolet (UV) light emitting structure, a UV light emitting device, and a method of making a UV light emitting structure or device, wherein the UV light emitting structure or device has an AlN or AlGaN injection layer with high aluminum content between the light emitting active region and the p-doped layers and wherein the injection layer has a thickness such that holes can tunnel from the p-side of the semiconductor-based ultraviolet light emitting diode structure through the injection layer in the active zone and also reducing leakage electrons out of the active zone.

Abstract: The invention relates to a heavy-wire bond arrangement, having a substrate (2), a heavy wire (1) and a high-voltage heavy-wire bond connection, in which an end bond section (4) of the heavy wire (1), which extends towards the end (7) of the heavy wire (1), is bonded to the substrate (2), such that in the area of the bond section (4) a bond contact (5) between the heavy wire (1) and the substrate (2) is formed, the heavy wire (1) having a tapering section (6) which adjoins the end of the wire (7) and in which the wire cross-section tapers towards the end of the wire (7). The application additionally relates to a method for producing a heavy-wire bond arrangement.

Abstract: A method for controlling data communication within a network with multiple interconnected network elements includes: generating a representation of the network; detecting changes in the network and updating the representation of the network; receiving a request from a client network element, wherein the request comprises information which identifies a source network element and at least two destination network elements; determining for each identified destination network element, a ranking value for the communication path between the source network element and the respective identified destination network element based on the representation of the network; generating an ordered list of the identified destination network elements based on the respective ranking values; transmitting the ordered list to the client network element from the central network element; and selecting, based on the ordered list, at least one of the identified destination network elements for data communication with the source network el