Abstract: A microfluidic device comprising: a substrate having a microfluidic channel, an electrically conductive feature comprising an electrically conductive layer arranged on a primer layer and positioned with reference to the microfluidic channel, wherein the primer layer comprises: (i) an organic polymer selected from the group consisting of. (a) a homopolymer or copolymer including a vinyl lactam repeating unit, (b) a cellulose ether; (c) polyvinyl alcohol; and (d) unmodified or modified gelatin; and (ii) a porous particulate material, the organic polymer being dispersed in the porous particulate material, is provided. Methods for manufacturing the microfluidic devices and their use in a number of applications are also provided.

Abstract: A method is provided for determining the remaining service life of a rotor of a thermally loaded turboengine. In the method, a temperature on the rotor is determined, the thermal stress on the rotor is derived from the determined temperature, and the remaining service life of the rotor is deduced from the derived thermal stress. A simple, exact and flexible determination of the remaining service life is achieved in that the temperature is measured directly at a predetermined point of the rotor, and in that the thermal stress on the rotor is derived from the measured temperature.

Abstract: The present invention provides a method and an apparatus for assessing a capability, for example, linearity of an amplifier, such as that of a power amplifier including a radio frequency amplifier. In one embodiment, the method comprises defining a first figure of merit for a power amplifier based on a loss of linearity relative to a predefined linearity requirement for the power amplifier and/or defining a second figure of merit based on the first figure of merit and dependent upon a minimum frequency within a predefined frequency band for the power amplifier, characterizing the linearity thereof. In this manner, using a test setup, for digital mobile communication networks deploying one or more higher order modulation schemes with complex wireless transmission that results in non-constant envelope signals, linearity of power amplifiers in transceivers, such as a mobile station or a base station, may be sufficiently described.

Abstract: A combustion device (10) includes at least one combustion chamber (11) with a plurality of burners (B1, . . . , Bn) operating in parallel which produce in each case a flame (F1, . . . , Fn) which reaches into the combustion chamber (11), wherein each of the burners (B1, . . . , Bn), via a fuel distribution system (18), is supplied with a fuel from a fuel supply (16), which fuel distribution system (18) includes control elements (V1, . . . , Vm) for manual or controlled regulating of the fuel supply and/or fuel composition of individual burners (B1, . . . , Bn) and/or groups of burners (B1, . . . , B3; Bn?2, . . . , Bn). In a method of using the combustion device, a quick optimization or homogenization is achieved by a function (F) of the flame temperatures of the burners (B1, . . . , Bn) being provided in dependence upon the positions of the control elements (V1, . . .

Abstract: The present invention provides a method and an apparatus for using power of a pilot channel to control an output power from a transmitter, such as a base station transmitting spread spectrum signals. In one embodiment, a method for controlling an output power from a transmitter associated with a communication node (e.g., Node B) in a wireless network, such as a digital cellular network is provided. The method comprises extracting an indication of a pilot channel power from a portion of an output signal of the transmitter and controlling a control loop having one or more control devices in the transmitter based on the indication of a pilot channel power such that the pilot channel power stays substantially constant over a period of time. In this manner, using a closed power loop controller, a transmitter may overcome the problem of measuring the power of a non-constant spread spectrum signal and a traffic independent measure may control a cell size.

Abstract: The invention relates to a method for separating impurities out of slags, dusts, minerals, preparation residues of minerals or of recyclings or remaining substances, subsequently called feed stock. In order to save energy and reduce costs, the inventive method is characterized by the combination of the following features: melting the feed stock containing the impurities; forming a copper melt; bring the feed stock into contact with the copper melt while adding reducing agents, preferably coke and/or coal; vaporizing, if required, existing volatile compounds such as metal chlorides; reducing metals of the feed stock more noble than copper in the copper melt, and; forming a slag with constituents of the feed stock to be purified that is less noble than copper.

Abstract: The present invention provides a method and an apparatus for controlling a Q-factor for a filter. The method comprises stabilizing an active feedback to provide a variable feedback in a filter, varying the active feedback based on an input signal to the filter, and producing a desired Q-factor for the filter at a first frequency band, in response to the variable feedback. The method further comprises reconfiguring a center frequency and a bandwidth of the filter based on a channel bandwidth of the input signal to the filter to adjust the Q-factor for the filter in response to a second frequency band different than the first frequency band. By reconfiguring a center frequency and a bandwidth of a filter, the Q-factor for the filter, such as a flexible or reconfigurable filter, may be controlled across a multiplicity of frequency band signals.

Abstract: The invention proposes a device for high-frequency and/or radio-frequency tuning comprising within one IC-package a first variable capacitor (C1) and at least one second capacitor (C2), each of the at least one second capacitor (C2) being fixed or variable respectively, at least one signal path connected to the first variable capacitor (C1) and providing at least one input and one output port (rf-port1, rf-port2) and at least one controllable switching means (SC2) for individually connecting and disconnecting at least one of the at least one second capacitor (C2) into the signal path or from the signal path, in particular in parallel to the first variable capacitor (C1).

Abstract: A thermoplastic polymer powder composition containing a thermoplastic polymer or a powder blend of two or more thermoplastic polymers having an average particle diameter of from 40 to 250 ?m, and from 0.01 to 10 parts of a metal powder.

Abstract: The invention proposes a device for providing tunable high-frequency and/or radio-frequency comprising within one IC-package at least four signal paths providing at least two input and at least two output ports (rf-port1, rf-port2, rf-prot3, rf-port4) at least one active component (T) and at least one variable passive component (C1, C2) connected at least with an input port of the active component (T), and at least one control path for controllable tuning the at least one variable passive component (C1, C2).

Abstract: The invention proposes a device for high-frequency and/or radio-frequency tuning comprising within one IC-package a first variable capacitor (C1) and at least one second capacitor (C2), each of the at least one second capacitor (C2) being fixed or variable respectively, at least one signal path connected to the first variable capacitor (C1) and providing at least one input and one output port (rf-port1, rf-port2) and at least one controllable switching means (SC2) for individually connecting and disconnecting at least one of the at least one second capacitor (C2) into the signal path or from the signal path, in particular in parallel to the first variable capacitor (C1).

Abstract: The invention proposes a device for providing tunable high-frequency and/or radio-frequency comprising within one IC-package at least four signal paths providing at least two input and at least two output ports (rf-port1, rf-port2, rf-prot3, rf-port4) at least one active component (T) and at least one variable passive component (C1, C2) connected at least with an input port of the active component (T), and at least one control path for controllable tuning the at least one variable passive component (C1, C2).

Abstract: A universal tuning and matching device for providing increased reconfiguration flexibility for high frequency or radio frequency signal transmission systems and/or applications by simultaneously reducing undesirable parasitic influences. The device for high frequency tuning and/or matching may be incorporated within one IC-package at least two capacitors (C1, C2, C3) and two inductors (L1, L2, L3), at least one signal path with at least one input and one output port (RF-port1, RF-port2, RF-prot3) and controllable switching means (1C1, 1C2, 1C3, 1L1, 1L2, 1L3) for individually connecting and disconnecting at least one of the capacitors (C1, C2, C3) and/or at least of the inductors (L1, L2, L3) into the signal path or from the signal path.

Abstract: A pivotable irradiating device for a person on a lying surface provides extensively uniform continued irradiation of the lying surface without any interruption in time when the irradiating device is pivoted out of the starting position. The irradiating device has at least one radiator in a housing. The housing is connected to a securing element via a rotatable connector (hinge). The axis of rotation of the hinge is located outside a central axis of the irradiating device. The intersection of these two axes is located in the center of the lying surface or in its vicinity.

Abstract: In incubator 1 for tomographic examinations includes a patient section 2 and a supply section 3 which extends from the patient section 2. The patient section includes a cylindrically-shaped double wall section made of transparent plastic. The supply section 3 includes a venturi nozzle 13 which functions to generate a difference pressure and simultaneously supplies air and oxygen. The supply section 3 also includes a heater 14 which is preferably combined with an air humidifier 15 outputting water vapor as well as input and output openings to and from the patient section 2 to ensure a circulating air and oxygen supply in the incubator 1 while at the same time emitting a gas portion to the ambient through openings 20.

Abstract: The invention directed to an incubator for infants and includes an air guidance system which extends about the support surface 7 and effects a uniform temperature distribution. This uniform temperature distribution is achieved in that the heated air is moved via a fan 8 so that it rises between the incubator hood 2 and the inner wall 4 and thereafter descends between the inner wall 4 and the support surface 7.

Abstract: An incubator for maintaining a warm environment for infants includes a substantially elongated resting or bed surface which is surrounded by a hood. At least one side wall of the front side has closable access openings. An air outlet for supplying air into the hood and an air inlet for carrying air away from the hood are provided at the peripheral region of the resting surface. In the incubator, the air is guided to maintain a stable incubator air temperature to reduce heat losses from convection and radiation with the hood closed and, with the front side opened, the buildup of a stable warm-air curtain is promoted. For this purpose, the air outlet is disposed along the front side, and the air inlet is disposed along the rear side opposite this front side.

Abstract: A radiation arrangement provides heat to a bed surface for accommodating a patient thereon. Heat sources are arranged at a spatial distance above the bed surface in such a way that uniform radiant warming of the bed surface is obtained and that sides of the bed surface are maintained clear of radiation to facilitate access by persons attending the patient so that these attending persons are not subjected to the radiant heat especially in the region of the head. The arrangement includes small-surface heat radiators which are located and spaced vertically above the corner points of a polygon border enclosing the bed surface.

Abstract: An incubator has a transparent covering hood having at least one side wall on which two flaps are mounted for closing access openings formed in the side wall. The flaps are each provided with a hinge and closure element. The flaps and access openings are so configured that the maximum possible freedom of movement is provided for the person treating the patient while at the same time the smallest possible outlet area is attained to prevent heat and oxygen losses from within the incubator to the ambient. For this purpose, the access openings are configured to be elongated and so that their respective longitudinal axes conjointly define an upwardly facing obtuse angle. To improve visibility for observing the premature infant and to improve ergonomically correct actuation of the operating elements, both the hinge and the closure element are located together on one side of the flap.

Abstract: A transport container particularly for use as an incubator comprises a housing having an interior substantially vertical wall and a substantially horizontal wall with a support structure mounted in the housing spaced from the vertical wall and the horizontal wall so as to define a convection passage below and on one side of the support. The convection passage contains means for suspending one or more heating elements in the passage. The heating elements may comprise of preheatable plates, water containers, etc. or each storage material, for example salts or other substances which change in structure when passing through a critical point so as to provide a latent heat for aiding and heating the area overlying the support structure.