Institution
Munich University of Applied Sciences
Education•Munich, Germany•
About: Munich University of Applied Sciences is a education organization based out in Munich, Germany. It is known for research contribution in the topics: Laser & Fiber Bragg grating. The organization has 3935 authors who have published 4819 publications receiving 71528 citations.
Papers published on a yearly basis
Papers
More filters
••
TL;DR: The decomposition of A is called the singular value decomposition (SVD) and the diagonal elements of ∑ are the non-negative square roots of the eigenvalues of A T A; they are called singular values.
Abstract: Let A be a real m×n matrix with m≧n. It is well known (cf. [4]) that
$$A = U\sum {V^T}$$
(1)
where
$${U^T}U = {V^T}V = V{V^T} = {I_n}{\text{ and }}\sum {\text{ = diag(}}{\sigma _{\text{1}}}{\text{,}} \ldots {\text{,}}{\sigma _n}{\text{)}}{\text{.}}$$
The matrix U consists of n orthonormalized eigenvectors associated with the n largest eigenvalues of AA T , and the matrix V consists of the orthonormalized eigenvectors of A T A. The diagonal elements of ∑ are the non-negative square roots of the eigenvalues of A T A; they are called singular values. We shall assume that
$${\sigma _1} \geqq {\sigma _2} \geqq \cdots \geqq {\sigma _n} \geqq 0.$$
Thus if rank(A)=r, σ r+1 = σ r+2=⋯=σ n = 0. The decomposition (1) is called the singular value decomposition (SVD).
3,036 citations
••
TL;DR: In this paper, the authors generalize the results of [4] and modify the algorithm presented there to obtain a better rate of convergence, which is the same as in this paper.
Abstract: In this paper we generalize the results of [4] and modify the algorithm presented there to obtain a better rate of convergence.
2,225 citations
••
TL;DR: A survey of the classical works in mechanochemistry is given and the key mechanochemical phenomena into perspective with recent results from atomic force microscopy and quantum molecular dynamics simulations are put into perspective.
Abstract: Regarding the activation of chemical reactions, today’s chemist is used to thinking in terms of thermochemistry, electrochemistry, and photochemistry, which is reflected in the organization and content of the standard physical chemistry textbooks. The fourth way of chemical activation, mechanochemistry, is usually less well-known. The purpose of the present review is to give a survey of the classical works in mechanochemistry and put the key mechanochemical phenomena into perspective with recent results from atomic force microscopy and quantum molecular dynamics simulations. A detailed historical account on the development of mechanochemistry, with an emphasis on the mechanochemistry of solids, was recently given by Boldyrev and Tkáčová.1 The first written document of a mechanochemical reaction is found in a book by Theophrastus of Ephesus (371-286 B.C.), a student of Aristotle, “De Lapidibus” or “On stones”. If native cinnabar is rubbed in a brass mortar with a brass pestle in the presence of vinegar, metallic mercury is obtained. The mechanochemical reduction probably follows the reaction:1-3 * To whom correspondence should be addressed. Telephone: ++49-89-289-13417. Fax: ++49-89-289-13416. E-mail: martin.beyer@ch.tum.de (M.K.B.); Telephone: ++49-89-12651417. Fax: ++49-89-1265-1480. E-mail: clausen-schaumann@ fhm.edu (H.C.-S.). † Technische Universität München. ‡ Institut für Strahlenschutz. § Current address: Munich University of Applied Sciences. HgS + Cu f Hg + CuS (1) Volume 105, Number 8
1,062 citations
••
747 citations
••
TL;DR: Di- and Tripyrrylmethen bilden mit Bortrifluorid in Gegenwart von tert. B. as discussed by the authors. Butt et al.
644 citations
Authors
Showing all 3965 results
Name | H-index | Papers | Citations |
---|---|---|---|
Robert Huber | 139 | 671 | 73557 |
Gerhard Ertl | 120 | 720 | 57560 |
Kurt Binder | 114 | 1248 | 65308 |
Joachim Frank | 103 | 473 | 39475 |
Robert Huber | 78 | 311 | 25131 |
Alarcos Cieza | 76 | 370 | 19755 |
Notker Rösch | 72 | 487 | 17842 |
Richard B. Frankel | 71 | 256 | 15896 |
Fritz H. Frimmel | 65 | 358 | 14045 |
Heinz Gerischer | 59 | 256 | 12609 |
Helmut Werner | 57 | 868 | 18391 |
Michael Schmitt | 57 | 434 | 11488 |
Michael Schneider | 56 | 462 | 15518 |
Gerhard Höfle | 55 | 258 | 11792 |
Ivar Ugi | 52 | 466 | 15463 |