Abstract: The invention relates to a rear panel bus, with a number of plugs which may be plugged into the modules and a fibre optic cable, for guiding light signals, whereby the fibre optic cable has a number of interruptions in the propagation direction of the light signals, into which means, for injection and decoupling of light signals running in the fibre optic cable may be inserted. The interruptions in the fibre optic cable are arranged such that a plug may be allocated to an interruption. The invention further comprises a module which may be plugged into an optical rear panel bus and means for injection and decoupling of light signals running in an optical fibre cable whereby the means for injecting and decoupling are arranged such as to be able to be inserted in interruptions in the fibre optic cable, to decouple light signals from the fibre optic cable and to inject light signals into the fibre optic cable in the propagation direction.

Abstract: The invention relates to a method for the spectral evaluation of an object to be tested. The inventive method enables an evaluation to be carried out independently of the respective operating state of the object to be tested, said operating state being influenced by operating parameters. A first operating parameter is an actual rotational speed value. According to the inventive method, a frequency spectrum (22, 23) of the object to be tested is automatically recorded by measuring means. Said frequency spectrum (22, 23) has first amplitude values which depend on first frequency values, the first frequency values of the frequency spectrum (22, 23) being used for normalisation in relation to the actual rotational speed value. An alarm curve (2) is formed with second amplitude values which depend on second frequency values, the second frequency values of the alarm curve (2) being used for normalisation in relation to the actual rotational speed value.

Abstract: The invention relates to a method for monitoring at least one measuring signal, in particular for use in automation technology, production automation and process automation. Said method automatically determines and establishes an optimal time interval between measuring periods, by means of the course of a measuring signal. According to the invention, a computer system cyclically determines a characteristic value of the measuring signal in measuring periods (8), which are separated by a time interval (9), whereby a priority (P1 . . . P15) is automatically defined, said priority (P1 . . . P15) is assigned to the measuring signal and the time interval (9) between the measuring periods (8) is defined in accordance with the priority (P1 . . . P15).

Abstract: The invention relates to iminooxadiazine dione derivatives with the formula (I) 1

Abstract: Methylene dithiepane silanes according to Formula I 1

Abstract: Dental material containing a cluster according to the general formula [(M1)a(M2)bOc(OH)d(OR)e(L—Sp—Z)f] (I) in which M1, M2, independently of each other, stand in each case for a metal atom of the IIIrd or Vth main groups or the Ist to VIIIth sub-groups of the periodic table; R is an alkyl group with 1 to 6 carbon atoms; L is a co-ordinating group with 2 to 6 complexing centres; Sp is a spacer group or is absent; Z is a polymerizable group; c is a number from 1 to 30; d, e, independently of each other, are in each case a number from 1 to 30; f is a number from 2 to 30, any charge of the cluster (I) present being equalized by counterions.

Abstract: Dental material containing an amide of the general formula BXn in which B stands for a hydrocarbon radical with 1 to 5 carbon atoms, which can contain one or more of the groups O, S, NH, CO—NH, O—CO—NH and/or NH—CO—NH, and which is substituted n times with the group X, X stands for the group 1

Abstract: The invention relates to urethane di(meth)acrylate derivatives of 1-3-bis(1-isocyanato-1-methylethyl)benzene according to Formula (I) 1

Abstract: The invention relates to dental materials based on wax-like polymerizable substances. The dental materials contain (a) 0 to 70 wt. % of at least one polymerizable monomer and/or oligomer; (b) 0.1 to 5 wt. % of at least one polymerization initiator; (c) 0 to 60 wt. % of one or more fillers, (d) at least 20 wt. % of the wax-like polymerizable substance. They can be kneaded at room temperature and can be modelled in non-polymerized state without additional heating, like conventional waxes. On polymerization, the wax component is covalently incorporated into the polymer. The dental materials are suitable for producing temporary and permanent dental prostheses.