Abstract: The description relates to a joining head for fastening a fastening element by a die to the surface of a component with a gripper that can be linearly displaced in a first displacement direction RG and a magazine that can be linearly displaced in a second displacement direction RM. The magazine contains a plurality of fastening elements, with the first displacement direction RG running transversely to the second displacement direction RM.

Abstract: A molding tool for the production of plastics moldings by the reaction injection molding process is described. These plastics moldings are preferably prepared from a reaction mixture comprising a polyurethane molding composition. The molding tool comprises at least two molding tool halves, i.e. an upper mold half and a lower mold half, which together form a mold cavity when in the closed position, a supply pipe for transporting the reaction mixture via an external mixing head connector which connects the supply pipe to an external mixing head, a storage chamber which receives the reaction mixture from the supply pipe, and a plunger which is movably arranged in the storage chamber, characterised in that the end face of the plunger forms part of the inside wall of the mold cavity formed by the two mold halves when the plunger is in the extended state.

Abstract: The invention concerns a method and an apparatus for investigating layers (1) of tissues in living animals using a microscope (2). The microscope (2) is focused onto a layer (1), and images of the layer (1) are acquired or optical measurements are performed on it. Positional changes of the layer (1) are brought about by movements of the animal or of its organs. The positional changes are sensed, and corresponding signals are generated. The signals are stored, together with the corresponding images or measurement results, for later evaluation; or they are processed in such a way that the positional changes are compensated for in order to investigate the layer (1). As a result, the layer (1) can be qualitatively or quantitatively investigated microscopically, irrespective of the movement of the animal or its organs.

Abstract: A method and system for transmitting data between two communication devices via a packet-oriented communication network, wherein the communication devices are, in each case, connected to the packet-oriented communication network via a conversion device. Time-slot-oriented signaling and user information allocated to a connection between the communication devices are separated at the transmitter end by the conversion devices. The signaling information is then transmitted transparently via a first link via the packet-oriented communication network. The user information is converted into a data format supported by the packet-oriented communication network for transmission via the packet-oriented communication network and is then transmitted via a second connection. Finally, the user information is converted back at the receiver end and joined together with the signaling information.

Abstract: The invention concerns a method and an apparatus for investigating layers (1) of tissues in living animals using a microscope (2). The microscope (2) is focused onto a layer (1), and images of the layer (1) are acquired or optical measurements are performed on it. Positional changes of the layer (1) are brought about by movements of the animal or of its organs. The positional changes are sensed, and corresponding signals are generated. The signals are stored, together with the corresponding images or measurement results, for later evaluation; or they are processed in such a way that the positional changes are compensated for in order to investigate the layer (1). As a result, the layer (1) can be qualitatively or quantitatively investigated microscopically, irrespective of the movement of the animal or its organs.

Abstract: Derived timber products are produced by hot pressing lignocellulose-containing materials bonded with a polyisocyanate binder. In this process, a mixture of organosilicon compounds satisfying specified compositional requirements is applied to the surfaces of the pressing tool facing the lignocellulose-containing material to be pressed.

Abstract: The present invention relates to a process for the production of derived timber products by applying a storage-stable binder to materials containing lignocellulose and heating this mixture under pressure. These storage-stable binders comprise a polyisocyanate and an amine catalysts. The invention also relates to these storage-stable binders.

Abstract: The present invention relates to a process for the production of derived timber products by applying a storage-stable binder to materials containing lignocellulose and heating this mixture under pressure. These storage-stable binders comprise a polyisocyanate and an amine catalysts. The invention also relates to these storage-stable binders.

Abstract: Multi-ply laminated materials based on wood veneer are produced by pressing veneer woods glued with a specified binder which enhances the cold bond strength of the laminate.

Abstract: Derived timber products are produced by hot pressing lignocellulose-containing materials bonded with a polyisocyanate binder. In this process, a mixture of organosilicon compounds satisfying specified compositional requirements is applied to the surfaces of the pressing tool facing the lignocellulose-containing material to be pressed.

Abstract: The present invention relates to a process for the production of derived timber products by applying a storage-stable binder to materials containing lignocellulose and heating this mixture under pressure. These storage-stable binders comprise a polyisocyanate and an amine catalysts. The invention also relates to these storage-stable binders.

Abstract: The present invention relates to a process for the production of derived timber products by applying a storage-stable binder to materials containing lignocellulose and heating this mixture under pressure. These storage-stable binders comprise a polyisocyanate and an amine catalysts. The invention also relates to these storage-stable binders.

Abstract: A TV camera for microscopic or macroscopic imaging is characterized by a confocal lens with a laser light source (1), a scanner (2), a detector (3) and an electronic control unit (4), for using confocal characteristics in the most compact possible format.

Abstract: A method and system for transmitting data between two communication devices via a packet-oriented communication network, wherein the communication devices are, in each case, connected to the packet-oriented communication network via a conversion device. Time-slot-oriented signaling and user information allocated to a connection between the communication devices are separated at the transmitter end by the conversion devices. The signaling information is then transmitted transparently via a first link via the packet-oriented communication network. The user information is converted into a data format supported by the packet-oriented communication network for transmission via the packet-oriented communication network and is then transmitted via a second connection. Finally, the user information is converted back at the receiver end and joined together with the signaling information.

Abstract: High functionality, low viscosity, light colored sucrose-based polyethers are prepared by reacting a starter mixture containing i) approximately 100 parts by weight of sucrose, ii) from about 30 to about 1000 parts by weight of a low molecular weight, relatively high valency alcohol and/or an alkoxylation product of such an alcohol and iii) an alkali metal hydroxide which has been prepared at a temperature of from about 20.degree. to about 110.degree. C. with an alkylene oxide at a temperature of from about 90.degree. to about 130.degree. C. and at a pressure of from about 0.3 to about 4 bar excess nitrogen pressure. These polyether polyols are particularly useful for the production of polyurethanes, particularly rigid polyurethane foams.

Abstract: ISDN basic interface S.sub.o of an ISDN communication system that can be connected to an S.sub.o interface of an ISDN communication terminal equipment or of an ISDN terminal of a public communication network (ISDN-PSTN) is provided. For automatic recognition and commissioning of such an ISDN terminal, this is first initialized as one of the possible connection modes and the processes of layer 1 and layer 2 are activated in interaction with the administration and maintenance and dependability processes. When it occurs from the message traffic of the individual components that a commissioning is not possible, then the appertaining S.sub.o terminal is initiated with the next connection mode and the commissioning is restarted. The controller previously made the corresponding, new configuring data available. After a successful commissioning, the S.sub.

Abstract: An isocyanate terminated prepolymer based upon diphenylmethane isocyanates. This prepolymer is the reaction product of a diphenylmethane isocyanate mixture having from about 75 to about 95 wt % binuclear isomers and from about 5 to about 25 wt % polymeric isocyanate with a polyether polyol. The binuclear isomer content is generally from about 15 to about 40 wt % 2,4'-isomer and from about 2 to about 10 wt % 2,2'-isomer. The polyether polyol has a functionality of from about 3 to about 8, an OH number of from about 350 to about 1000 mg KOH/g and a molecular weight of from about 150 to about 1000. These prepolymers are particularly useful as starting materials for the production of light-colored, dimensionally stable rigid polyurethane foams.

Abstract: A process for modifying structural profiles produced by polymerization or depolymerization in resist layers. As a function of the acoustic impedance of the substrate carrying the resist layer, the structures are irradiated with an ultrasonic beam. An ultrasonic beam for which the substrate represents a high impedance is used in order to enhance the contrast of the structures. An ultrasonic beam for which the substrate represents a low impedance is used to weaken the contrast. An acoustic microscope is especially suitable for carrying out the process.

Abstract: A process for the production of structures by the polymerization, or fragmentation of resist layers comprising the steps of effecting an incomplete exposure of the resist layer corresponding to the pattern of the structures, and of fully developing the structure in the resist layer by ultrasonic irradiation.An acoustic microscope is preferably used for the ultrasonic irradiation, whereby the formation of the structure in the resist layer may also be observed.