Chemnitz University of Technology is located in the town of Chemnitz in Germany. With over 10000 students it is the third largest university in Saxony and around 750 international students from 100 universities all over the world are enrolled each year. It was founded in 1836 as Royal Mercantile College and became a technical university in 1986. Wikipedia.
Schreiber M.,TU Chemnitz
Journal of Informetrics
The h-index has been shown to have predictive power. Here I report results of an empirical study showing that the increase of the h-index with time often depends for a long time on citations to rather old publications. This inert behavior of the h-index means that it is difficult to use it as a measure for predicting future scientific output. © 2013 Elsevier Ltd. Source
Friedrich J.,TU Chemnitz
Journal of Chemical Theory and Computation
In this work, we introduce a method to automatically compute the basis set superposition error (BSSE) for large clusters and introduce a correction scheme to improve the accuracy of incrementally expanded coupled cluster energies (CCSD(T)) using the domain-specific basis set approach. The key step for the automatic BSSE computation is the automated partitioning of the system. With the proposed scheme, one can compute the BSSE of large clusters or complexes with different fragments and different charges fully automatic. The second proposal is to use the error from an incrementally expanded MP2 calculation to reduce the error in the corresponding incremental CCSD(T) calculation (CCSD(T)|MP2). This scheme improves the accuracy of incremental CCSD(T) expansions using the domain-specific basis set significantly. The performance of the method is analyzed for intermolecular interactions of H 2 and H 2O clusters and for the adiabatic interaction energy of Zn(H 2O) 6 2+. The errors of the expansion are compared to basis set errors and errors introduced by a cheap lower level method, MP2. Using the proposed CCSD(T)|MP2 scheme, the largest error to the exact CCSD(T) calculation is found to be 0.14 kcal/mol for Zn(H 2O) 6 2+. With the incremental scheme, it was possible to increase the basis set of the CCSD(T) calculation for (H 2O) 10 to quintuple-ζ level with 2370 basis functions. © 2012 American Chemical Society. Source
Fraunhofer Gesellschaft Zur Foerderung Der Angewan and TU Chemnitz | Date: 2010-01-26
A microstructure has at least one bonding substrate and a reactive multilayer system. The reactive multilayer system has at least one surface layer of the bonding substrate with vertically oriented nanostructures spaced apart from one another. Regions between the nanostructures are filled with at least one material constituting a reaction partner with respect to the material of the nanostructures. A method for producing at least one bonding substrate and a reactive multilayer system, includes, for forming the reactive multilayer system, at least one surface layer of the bonding substrate is patterned or deposited in patterned fashion with the formation of vertically oriented nanostructures spaced apart from one another, and regions between the nanostructures are filled with at least one material constituting a reaction partner with respect to the material of the nanostructures. A device for bonding a microstructure, which has at least one bonding substrate and a reactive multilayer system, to a further structure, which has a bonding substrate. The device has a bonding chamber, which can be opened and closed and evacuated and in which the microstructure and the further structure can be introduced and aligned with one another, and also an activation mechanism, which is coupled to the bonding chamber and by means of which the reactive multilayer system of the microstructure, said reactive multilayer system being formed from reactive nanostructures withsituated therebetweena material constituting a reaction partner with respect to the material of the nanostructures, can be activated mechanically, electrically, electromagnetically, optically and/or thermally in such a way that a self-propagating, exothermic reaction takes place between the nanostructures and the material constituting a reaction partner with respect to the material of the nanostructures. A microsystem is formed from two bonding substrates and a construction lying between the bonding substrates, the construction having a reacted reactive layer system, wherein the reacted reactive layer system is a reacted structure sequence composed of at least one surface layerprovided on the bonding substratewith vertically oriented nanostructures spaced apart from one another, and regions filled between the nanostructures with at least one material constituting a reaction partner with respect to the material of the nanostructures. The microsystem is a sensor coated with biomaterial and/or has elements composed of polymeric material and/or at least one magnetic and/or piezoelectric and/or piezoresistive component.
TU Chemnitz | Date: 2013-09-16
A winding is provided for electric energy converters, such as electric machines, like electric motors, generators or transformers, and a respective machine. The winding has conductor paths applied to a flexible carrier material by means of a printing process, in particular screen printing process. The conductor path preferably includes an electrically conductive paste. The conductor paths are printed one above the other in layers, and an insulating layer is applied between individual layers of the conductor paths. The conductor paths are arranged such that the conductor paths of superimposed winding layers preferably are transversely shifted against each other in a pre-finished, rolled up state.
TU Chemnitz | Date: 2011-08-25
The invention relates to a micromechanical sensor having at least two spring-mass damper oscillators. The micromechanical sensor has a first spring-mass-damper oscillating system with a first resonant frequency and a second spring-mass-damper oscillating system with a second resonant frequency which is lower than the first resonant frequency. The invention also relates to a method for detection and/or measurement of oscillations by means of a sensor such as this, and to a method for production of a micromechanical sensor such as this. The first and the second spring-mass-damper oscillating systems have electrodes which oscillate in a measurement direction about electrode rest positions with electrode deflections which are equal to or proportional to deflections of the spring-mass-damper oscillators. The systems are coupled to one another by means of at least one electrostatic field, which acts on the electrodes, forming at least one capacitance with the capacitance being governed by at least one electrode area and by at least one electrode separation and/or an electrode coverage.