Abstract: A processing head for guiding a laser beam for processing a workpiece includes a housing main body configured to accommodate a beam guiding element. The housing main body has a first main surface section and a second main surface section. The processing head further includes a functional module configured to connect to the housing main body or to be inserted into the housing main body. The first main surface section and the second main surface section of the housing main body are aligned with one another, at least partly surround a free internal volume of the housing main body, and are configured differently from one another for receiving and/or for inserting the functional module and/or a functional component.

Abstract: Under one aspect of the present invention, a system for processing a group of signals and interference includes (a) an analog-to-digital (A/D) converter for digitizing the group of signals and the interference; (b) a Fourier transform circuit for obtaining a Fourier transform of the digitized group of signals and the interference and to provide as output spectral bins, at least one of which contains the interference; (c) a power analysis circuit for comparing the collective power level of the spectral bins to a predetermined threshold, and if the collective power level exceeds the predetermined threshold, and for excising at least one bin that contains the interference; and (d) an inverse Fourier transform circuit for obtaining an inverse Fourier transform of the remaining spectral bins and outputting a digitized group of signals less the interference in any excised spectral bin.

Abstract: Under one aspect of the present invention, a system for processing a group of signals and interference includes (a) an analog-to-digital (A/D) converter for digitizing the group of signals and the interference; (b) a Fourier transform circuit for obtaining a Fourier transform of the digitized group of signals and the interference and to provide as output spectral bins, at least one of which contains the interference; (c) a power analysis circuit for comparing the collective power level of the spectral bins to a predetermined threshold, and if the collective power level exceeds the predetermined threshold, and for excising at least one bin that contains the interference; and (d) an inverse Fourier transform circuit for obtaining an inverse Fourier transform of the remaining spectral bins and outputting a digitized group of signals less the interference in any excised spectral bin.

Abstract: A dermatological treatment method includes directing laser energy having a wavelength of 2.79 ?m onto skin. According to disclosed methods, the energy can function to ablate a first portion of epidermal tissue, coagulate an underlying second portion of epidermal tissue, and promote collagen formation in tissue of the underlying dermis. In an exemplary treatment apparatus, a laser using a YSGG gain medium is mounted in a handpiece. The handpiece may include a two-axis scanner to allow for uniform scanning of the energy over the tissue surface.

Abstract: Under one aspect of the present invention, a system for processing a group of signals and interference includes (a) an analog-to-digital (A/D) converter for digitizing the group of signals and the interference; (b) a Fourier transform circuit for obtaining a Fourier transform of the digitized group of signals and the interference and to provide as output spectral bins, at least one of which contains the interference; (c) a power analysis circuit for comparing the collective power level of the spectral bins to a predetermined threshold, and if the collective power level exceeds the predetermined threshold, and for excising at least one bin that contains the interference; and (d) an inverse Fourier transform circuit for obtaining an inverse Fourier transform of the remaining spectral bins and outputting a digitized group of signals less the interference in any excised spectral bin.

Abstract: A position measuring device including a code having a sequence of code elements of equal width B that is disposed in a measurement direction and includes a first property and a second property. The sequence of codes elements includes a first set of code elements having the first property and a second set of code elements having the second property, wherein the first and second sets of code elements are each being disposed aperiodically. The position measuring device further including a scanning unit having a plurality of detectors for scanning the code and obtaining scanning signals, wherein a code word defining an absolute position is defined from the scanning signals.

Abstract: A dermatological treatment method includes directing laser energy having a wavelength of 2.79 ?m onto skin. According to disclosed methods, the energy can function to ablate a first portion of epidermal tissue, coagulate an underlying second portion of epidermal tissue, and promote collagen formation in tissue of the underlying dermis. In an exemplary treatment apparatus, a laser using a YSGG gain medium is mounted in a handpiece. The handpiece may include a two-axis scanner to allow for uniform scanning of the energy over the tissue surface.

Abstract: A dermatological treatment method includes directing laser energy having a wavelength of 2.79 ?m onto skin. According to disclosed methods, the energy can function to ablate a first portion of epidermal tissue, coagulate an underlying second portion of epidermal tissue, and promote collagen formation in tissue of the underlying dermis. In an exemplary treatment apparatus, a laser using a YSGG gain medium is mounted in a handpiece. The handpiece may include a two-axis scanner to allow for uniform scanning of the energy over the tissue surface.

Abstract: A position measuring device including a code having a sequence of code elements of equal width B that is disposed in a measurement direction and includes a first property and a second property. The sequence of codes elements includes a first set of code elements having the first property and a second set of code elements having the second property, wherein the first and second sets of code elements are each being disposed aperiodically. The position measuring device further including a scanning unit having a plurality of detectors for scanning the code and obtaining scanning signals, wherein a code word defining an absolute position is defined from the scanning signals.

Abstract: Composite concrete/bamboo structural members and process of manufacture therefor. The bamboo material includes layers formed of bamboo segments which have been dried and glue coated. The segments are substantially free of outer nodes and husk and inner membrane material prior to application of glue. The longitudinal axes of the segments in each layer are generally parallel to one another and are arranged in a mold to surround the surface of a cured concrete core. The layers of segments are heated, compressed and bonded together until the glue cures around the concrete core into a single integral structure. The concrete core is preferably reinforced with steel REBAR rods.

Abstract: A dermatological treatment method includes directing laser energy having a wavelength of 2.79 ?m onto skin. According to disclosed methods, the energy can function to ablate a first portion of epidermal tissue, coagulate an underlying second portion of epidermal tissue, and promote collagen formation in tissue of the underlying dermis. In an exemplary treatment apparatus, a laser using a YSGG gain medium is mounted in a handpiece. The handpiece may include a two-axis scanner to allow for uniform scanning of the energy over the tissue surface.

Abstract: The present invention is related to an electrode and a method for preparing the same, and is particularly related to an electrode that has an intricate structure of active material layer, conductive material layer, or mixture layer of active material and conductive material that displays superior electrochemical properties despite being thin, and a method for preparing an electrode using the coating method of SIC.

Abstract: A dermatological treatment method includes directing laser energy having a wavelength of 2.79 ?m onto skin. According to disclosed methods, the energy can function to ablate a first portion of epidermal tissue, coagulate an underlying second portion of epidermal tissue, and promote collagen formation in tissue of the underlying dermis. In an exemplary treatment apparatus, a laser using a YSGG gain medium is mounted in a handpiece. The handpiece may include a two-axis scanner to allow for uniform scanning of the energy over the tissue surface.

Abstract: In a circuit configuration for ascertaining tilt errors in connection with a position-measuring device, the position-measuring device includes at least one incremental track on a measuring graduation that is able to be read by a scanner, which is movable relative to the measuring graduation in a measuring direction, and the scanner is guided along the measuring graduation and the scanner is rotated with respect to the measuring graduation by an angle of misalignment that is changeable during the relative movement. Perpendicular to the measuring direction, the scanner has a first scanning region and a second scanning region, whereby upon reading the at least one incremental track, at least one first position signal is able to be generated by the first scanning region and at least one second position signal is able to be generated by the second scanning region.

Abstract: In a circuit configuration for ascertaining tilt errors in connection with a position-measuring device, the position-measuring device includes at least one incremental track on a measuring graduation that is able to be read by a scanner, which is movable relative to the measuring graduation in a measuring direction, and the scanner is guided along the measuring graduation and the scanner is rotated with respect to the measuring graduation by an angle of misalignment that is changeable during the relative movement. Perpendicular to the measuring direction, the scanner has a first scanning region and a second scanning region, whereby upon reading the at least one incremental track, at least one first position signal is able to be generated by the first scanning region and at least one second position signal is able to be generated by the second scanning region.

Abstract: An integrated device for detecting a desired level of water in a tub, hot tub, sink or the like. The device incorporates a water sensor, sound processor and speaker into a housing that has the outward appearance of a whistle. The device mounts to a vertical side of the tub or other water container by a swiveling suction cup which allows the water sensor incorporated in the bottom of the device to remain level with respect to a rising surface of water. Upon the detection of the water level by the water sensors, the sound processor generates a varying series of sounds to alert a user. The varying sounds provide the user with information concerning the time that has passed since the initial detection of the water level.

Abstract: A method for resolving interferometric ambiguities for an interferometer system with antenna elements employs multiple interferometric elements within the baseline. The overall accuracy of the interferometer system results from the interferometric elements with the longest baseline dimension; the remaining interferometric elements provide a means to correctly resolve ambiguities. According to the method, the baseline locations of additional elements are determined by using an integer fractional location. By so doing, the ambiguities of the overall baseline correspond to a limited number of ambiguities of the fractional baseline so that many of the ambiguities of the overall baseline can be eliminated. According to a preferred method, baseline values are selected to obtain a high probability of correct ambiguity resolution with a minimum number of additional interferometric elements. In this way, the design complexity is reduced.

Abstract: A tool holder attachable to a spindle of a hammer and which can receive a bit, the bit having a shank with at least one retaining groove extending along part of the shank, the retaining groove having a defined length, a front end and a rear end that limit axial movement of the bit in the tool holder, which tool holder comprises a hollow cylinder having an axis, an axial bore, a rear end that can be attached to the spindle of the hammer, and a front end that can receive the shank of the bit so that the bit is slidable within the cylinder in an axial direction, at least one retaining element that is located so that it can extend radially into the bore of the cylinder and into the at least one retaining groove of the bit so that the retaining element can be hit by the rear end of the retaining groove during the transition to idling and limit the extent of axial movement of the bit within the cylinder, at least one radial restraining element limiting movement of the retaining element in the radial direction, at l

Abstract: A rotary hammer is provided which comprises a tool holder (2) and an air cushion hammering mechanism which comprises a cylinder (8′) having one end (8) that is connected to the tool holder, a piston (9), a ram (10) and a beat piece (21) slidably located in the cylinder so that reciprocation of the piston in the cylinder will cause the ram to reciprocate in the cylinder and thus cause the beat piece to hit a bit located in the tool holder. The ram (10) has an annular recess (31) in its peripheral surface at the end thereof nearest the piston (9), in which recess is located an annular seal (30). The annular seal has an annular seating flap (36) lying on the radially outwardly directed surface of the recess and an annular sealing flap (38) that is joined to the seating flap and extends between the radially outwardly directed surface of the recess and the inner wall of the cylinder (8′).

Abstract: In the installation of a scanner of a position measuring apparatus, it is required that parameters such as amplitude and phase position of analog signals generated by a scanner be tested so that the scanner can be correctly installed. For this purpose, a control device with a display field is provided. In the display field, a bar is displayed whose width represents a measure for the range of variation of the radius and whose position represents a measure for the average radius of a Lissajous figure. In addition, a marking is displayed for the admissible range of variation of this radius.