Results 111 to 120 of about 3,088,125 (319)

On geometry of numbers. [PDF]

Journal of the Mathematical Society of Japan, 1955
In a recent paper Tsuji [1952] has given some theorems which may be considered as a generalization to Fuchsian groups of the classical theorems of Blichfeldt [1914] and Minkowski in the geometry of numbers. In both cases, however, the generalization is restricted to circular domains.
openaire   +5 more sources

X‐Ray Computed Tomography Quantifies Primary Phases and Reveals Crack Morphology in High‐Cycle Fatigue of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
Primary phases and a fatigue crack are studied in a forged blank of an aluminum alloy using synchrotron and laboratory X‐ray computed tomography. To image the crack, the fatigue test is interrupted, and a static tensile load is applied to open the crack.
Jakob Schröder, Ying Han, Tobias Fritsch, Bardia Hejazi, Alexander Ulbricht, Birgit Skrotzki, Giovanni Bruno   +6 more
wiley   +1 more source

Monopoles, scattering, and generalized symmetries

Journal of High Energy Physics
We reconsider the problem of electrically charged, massless fermions scattering off magnetic monopoles. The interpretation of the outgoing states has long been a puzzle as, in certain circumstances, they necessarily carry fractional quantum numbers.
Marieke van Beest, Philip Boyle Smith, Diego Delmastro, Zohar Komargodski, David Tong   +4 more
doaj   +1 more source

Sets of metrical hypotheses for geometry [PDF]

, 1908
Robert L. Moore
openalex   +1 more source

Tribology of ZrC Coatings and Spherical Tips Acquired with Extraordinarily Stiff, Metal Atomic Force Microscopy Probes

Advanced Engineering Materials, EarlyView.
In this research, ZrC coatings are evaluated against various counterprobes at the microscale using novel super‐stiff atomic force microscopy cantilevers. The chemical composition of the coating is shown to be an important factor influencing coating hardness and Young's modulus, while surface roughness, counterprobe hardness, and surface energy are the ...
Piotr Jenczyk, Marcin Michałowski, Bogdan Warcholiński, Michał Milczarek, Adam Gilewicz   +4 more
wiley   +1 more source

CONSIDERATIONS REGARDING THE EMOTIONAL FACTOR IN ERGONOMICS AND DESIGN

Journal of Industrial Design and Engineering Graphics, 2015
Considering the quick development in technology, it is more and more necessary to place the problem of studying the effects of the emotions created, both in terms of design and ergonomics.
DUCA Mioara, VALTER Narcisa, DOBRE Cătălina   +2 more
doaj  

An Elementary Course in Synthetic Projective Geometry. [PDF]

, 1917
W. H. Bussey, D. N. Lehmer
openalex   +1 more source

Semiquantum geometry

Journal of Mathematical Sciences, 1996
In this paper we study associative algebras with a Poisson algebra structure on the center acting by derivations on the rest of the algebra. These structures, which we call Poisson fibred algebras, appear in the study of quantum groups at roots of 1 and related algebras, as well as in the representation theory of affine Lie algebras at the critical ...
Reshetikhin, N, Voronov, A, Weinstein, A
openaire   +4 more sources

Geometry and categorification

, 2016
We describe a number of geometric contexts where categorification appears naturally: coherent sheaves, constructible sheaves and sheaves of modules over quantizations.
Webster, Ben
core  

Subgrain and Cavity Development during Creep of Al‐3.85%Mg

Advanced Engineering Materials, EarlyView.
Al‐3.85%Mg does form subgrains if crept at very high strains. This fact allows the unification of the creep description in two different alloys such as pure Al and Al–Mg alloys. It is classically considered that the creep mechanisms for type M (e.g., pure Al) and type A alloys (e.g., Al–Mg alloys) are different.
Augusta Isaac, Itziar Serrano‐Munoz, Aleksander Kostka, Martinus Putra Widjaja, Gaspar González‐Doncel, Giovanni Bruno, Ricardo Fernández   +6 more
wiley   +1 more source