Abstract: A method is disclosed for accessing data stored in at least one database, comprising: accessing: model data, representing a model defining the structure of the data, metamodel data, representing a metamodel defining the structure of the model, and rule data, representing at least one rule for accessing the data, said at least one rule specifying at least one constraint in terms of a property of the metamodel; processing the rule data, and accessing the data in said at least one database in dependence on the processed rule data. Related systems, methods and computer systems are also disclosed.

Abstract: A device for guiding a person along a traveled path enables the wearer of the device to be guided back along the traveled path in an electronically supported manner even under conditions under which orientation is difficult. The device has a portable ejection means (2), in which a container (14) for accommodating a plurality of transponders (7) and an ejection mechanism (10), which is actuated by a control device (6) to eject a transponder (7) from the container (14), are present. A control unit (6) is prepared such as to actuate the ejection mechanism (10) at predetermined time intervals or at predetermined distances in space. A portable transmitter/receiver device (8) is designed to detect at least one of the transponders (7) dropped off and to generate a signal representative of the direction in which that transponder (7) is located. A portable display device (4) receives the direction signal of the transmitter/receiver means (8) and offers the wearer a visual and/or acoustic display of the direction.

Abstract: A device for transmitting electric signals detected by contact with the skin surface to an evaluating unit. The device has a stack of at least two layers of clothing (3, 7) with an electric path or electric line connection (4, 8) through each of the layers of clothing (3, 7). The lowermost layer of clothing (3) is provided with an electrode (2) contacting the skin surface of the body (1) of the wearer of the clothing and with an electrically conductive surface (5) on the side facing away from the skin surface. Each additional layer of clothing (7) stacked on the lowermost layer of clothing (3) is provided with an electrically conductive surface (6, 9) each on the underside and the top side. A carrying belt (11) is led over the stack of layers of clothing (3, 7) is provided with an electrically conductive surface (10), which faces the topmost layer of clothing (7) and which is connected to the evaluating unit (14) by means of an electric line (12).

Abstract: A modular system of electronic assembly units worn close to the body can be connected to a central supply module. At least one textile-supported supply line (1) leads to inductive interfaces, with which additional supply lines or electronic assembly units can be coupled, which likewise have at least one inductive interface. At least one portable supply module (6) has a power supply unit (9) and a control unit (10). The control unit (10) is designed such that it can assume a master function in respect to other coupled electronic assembly units, wherein the portable supply module (6) can be coupled via at least one inductive interface with the textile-supported supply line (1) such that it makes possible the power supply of the electronic assembly units (4) by the electronic supply unit (9) contained in the portable supply module (6).

Abstract: A modular system of electronic assembly units worn close to the body has assembly units that can be coupled with a common bus system. The modular system includes at least one control unit, which is designed such that it can assume a master function in respect to additional coupled electronic assembly units. The electronic components coupled with the common bus system are put automatically into operation when a minimum configuration of electronic assembly units is coupled with the common bus system.

Abstract: An occupational safety product and system has at least one contactless, especially capacitive measuring electrode (2) for detecting physiological parameters of the user of the occupational safety product makes possible the rapid and reliable adaptation of the electrodes at a defined distance from the skin surface. The measuring electrodes (2) are integrated for this, for example, directly in the rubber parts of the mask body of the breathing mask (1) or in the strap (3) of the mask. A reference electrode (33) and two contactless measuring electrodes (2) are connected to an evaluating unit (40) for ECG signals via electric lines (50).

Abstract: A device for transmitting electric signals detected by contact with the skin surface to an evaluating unit. The device has a stack of at least two layers of clothing (3, 7) with an electric path or electric line connection (4, 8) through each of the layers of clothing (3, 7). The lowermost layer of clothing (3) is provided with an electrode (2) contacting the skin surface of the body (1) of the wearer of the clothing and with an electrically conductive surface (5) on the side facing away from the skin surface. Each additional layer of clothing (7) stacked on the lowermost layer of clothing (3) is provided with an electrically conductive surface (6, 9) each on the underside and the top side. A carrying belt (11) is led over the stack of layers of clothing (3, 7) is provided with an electrically conductive surface (10), which faces the topmost layer of clothing (7) and which is connected to the evaluating unit (14) by means of an electric line (12).

Abstract: A process and a device for the radio transmission of signals generated near the body via an array of at least two antennas arranged in different positions near the body. At least one antenna, which will act as the transmitting antenna, is selected before or during the transmission.

Abstract: A device for guiding a person along a traveled path enables the wearer of the device to be guided back along the traveled path in an electronically supported manner even under conditions under which orientation is difficult. The device has a portable ejection means (2), in which a container (14) for accommodating a plurality of transponders (7) and an ejection mechanism (10), which is actuated by a control device (6) to eject a transponder (7) from the container (14), are present. A control unit (6) is prepared such as to actuate the ejection mechanism (10) at predetermined time intervals or at predetermined distances in space. A portable transmitter/receiver device (8) is designed to detect at least one of the transponders (7) dropped off and to generate a signal representative of the direction in which that transponder (7) is located. A portable display device (4) receives the direction signal of the transmitter/receiver means (8) and offers the wearer a visual and/or acoustic display of the direction.

Abstract: A method for modulating a basic clock signal for digital circuits, in which distances between adjacent switching edges are altered, the basic clock signal being conducted via a changing number of delay units for altering the distances between the adjacent switching edges, the method comprising the step of calibrating delay times of the delay units (D1-Dn), wherein the delay units (D1-Dn) each have a plurality of delay elements (10) which are controlled to impart zero delay or a non-zero value of delay to a clock signal individually or in groups of the display elements; wherein the respective distance between two adjacent switching edges is derived from numbers of a random number generator; and wherein the distance between two successive switching edges is derived as a function of the random number and a modulation factor.

Abstract: A compact combination sensor is provided for physiological parameters, which can be worn behind the ear. The combination sensor has a heat flux sensor (1) for detecting two temperatures (Th1, Th2) for determining the body core temperature (Tc), an acoustic sensor (2) for measuring the heart rate (HR) and for detecting speech signals, as well as a measured signal evaluating unit (4, 5, 7). A communications interface (8) is provided for transmitting the processed data from the measured signal evaluating unit (4, 5, 7) to a communications unit (9) are located in the sensor carrier (11).

Abstract: In a method for modulation of a basic clock for digital circuits, in which the intervals between adjacent switching edges are varied, with the basic clock being split into equidistant sections, and the intervals between adjacent switching edges being varied as a function of cyclically recurring random numbers, the position of a switching edge (ai+1) following a switching edge (a1) to be calculated as follows: a i + 1 = ( a 1 + p - ( N - 1 2 - Z i + 1 ) ) ⁢   ⁢ m

Abstract: In a clock modulator for modulating a basic clock signal to form a system clock signal for a digital system containing at least one microprocessor and/or other digital module, the system clock signal generating an interference spectrum with interference spikes in the digital system, it is provided that the clock modulator (11) can be adapted as a function of the interference spectrum of the system clock signal (4) in the digital system (5) in such a way that the amplitudes of the interference spikes are reduced.

Abstract: Polymeric amide-imide-ester wire enameling compositions are prepared from (1) a monoanhydride of an aromatic tricarboxylic acid, e.g. trimellitic anhydride, (2) an aromatic primary diamine compound and (3) either polyfunctional acids and polyhydroxy compounds or the polyesters thereof. At least a portion of the polyol or polyhydroxy compound is a tris (hydroxyalkyl) isocyanurate, e.g. tris (hydroxyethyl) isocyanurate. The polyfunctional acids (3) comprise an acid component selected from the group consisting of trimellitic anhydride, isophthalic acid and esters of isophthalic and terephthalic acid. The polymeric amide-imide-ester may be blended with terephthalate or isophthalate polyesters, polyisocyanates and other materials. One particularly suitable polyisocyanate is prepared from dimethylterephthalate, tris (2-hydroxyethyl) isocyanurate and tolylene diisocyanate.

Abstract: Disclosed is a UV-curable coating composition and method of preparing it, a method of coating a conductor with it, and the resulting coated conductor. The composition comprises about 20 to about 40% by weight of an acrylated epoxy which is the reaction product of an epoxy resin and an acrylate adduct. The acrylate adduct is the reaction product of an acrylate which may be either 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxyethyl methacrylate or mixture thereof, and either an anhydride or a diisocyanate. The anhydride may be phthalic anhydride, maleic anhydride, trimellitic anhydride, or mixtures thereof. The diisocyanate can be toluene diisocyanate, 4,4'-diisocyanato diphenyl methane, or mixtures thereof. The composition also includes about 4 to about 15% by weight of an acrylated blocked isocyanate which is the reaction product of caprolactam and an acrylated isocyanate.

Abstract: A tape useful for bonding electrical coils can be made flexible upon cure by using an impregnating varnish composition comprising a blend of (A) an alkyd component reaction mixture containing at least 29 equivalent % of fatty acid, and (B) an alkyl acrylate monomer.

Abstract: Disclosed is a solvent-free wire enamel cement coat which is curable to the B-stage with ultraviolet light. The wire can then be formed into a coil and cured with heat to the C-stage. The cement coat composition comprises a mixture of a UV photosensitizer and a curing agent with either an acrylated epoxy or an amine terminated acrylated epoxy or an acrylated urethane, or mixtures thereof, all dissolved in a monoacrylate. The composition can also include an end-blocked urethane, an acrylated hexamethoxymethyl melamine, or a low molecular weight cresol formaldehyde resin.

Abstract: Disclosed is a wire enamel blend which is curable to the B-stage with UV light then to the C stage with heat. The blend comprises up to about 40% of an acrylated epoxy dissolved in a monoacrylate, about 2 to about 26% of an acrylated polybutadiene, about 3 to about 26% of an acrylated polyester-amide-imide dissolved in a monoacrylate and in an unsatured diester, about 30 to about 65% of an end-blocked urethane dissolved in a monoacrylate and hydroxy terminated unsaturated diesters, up to about 15% of a cresol formaldehyde dissolved in monoacrylates, about 1.5 to about 5% of a UV photoinitiator, up to about 5% of an acrylated methoxymethyl melamine, and up to about 0.1% of a flow control agent.

Abstract: A polyester-amide-imide wire enamel blend is disclosed which is made up of four components--a cross-linkable polyester, a linear polyester, a polyester amide-imide component, and a cresol formaldehyde resin. The cross-linkable polyester is the reaction product of a polyol which is mixture of diol and a triol, a polyfunctional carboxylic compound, and a catalyst. The linear polyester is the reaction product of a diol, a polyfunctional carboxylic compound, and a catalyst. The polyester-amide-imide component is the reaction product of a diamine, trimellitic anhydride, and a polyester which in turn is the reaction product of a polyol, a polyfunctional carboxylic compound, and a catalyst. The cresol formaldehyde resin is the reaction product of a phenol, formaldehyde, and a amine catalyst. All of the four components are in a solution of a carbitol. The polyester-amide-imide wire enamel blend also contains a fatty acid component which may be reacted into any of its polyester components.

Abstract: A photosensitive, solventless, low viscosity, oil free coating composition is made by admixing: (A) about 40 wt.% to about 90 wt.% of an alkyd component, consisting essentially of a polyhydric alcohol and a dibasic aromatic and aliphatic acid mixture with (B) about 10 wt.% to about 60 wt.% of an acrylate monomer and (C) an effective amount of a photoinitiator; the composition characterized by having a viscosity of up to about 2,000 cps. at 25.degree. C., and being capable of forming an ultraviolet radiation cured, hard, pin hole free film, having a thickness of under about 5 mils.