Results 51 to 60 of about 3,263,826 (343)

Method for fast determination of the angle of ionizing radiation incidence from data measured by a Timepix3 detector [PDF]

Journal of Sensors and Sensor Systems, 2021
This paper presents a method of how to determine spatial angles of ionizing radiation incidence quickly, using a Timepix3 detector. This work focuses on the dosimetric applications where detectors and measured quantities show significant angle ...
F. Lehner, F. Lehner, J. Roth, O. Hupe, M. Kassubeck, B. Bergmann, P. Mánek, M. Magnor, M. Magnor   +8 more
doaj   +1 more source

Incidences between points and lines in three dimensions [PDF]

, 2015
We give a fairly elementary and simple proof that shows that the number of incidences between $m$ points and $n$ lines in ${\mathbb R}^3$, so that no plane contains more than $s$ lines, is $$ O\left(m^{1/2}n^{3/4}+ m^{2/3}n^{1/3}s^{1/3} + m + n\right) $$
Sharir, Micha, Solomon, Noam
core   +3 more sources

Implicit Characterizations of Smooth Incidence Geometries [PDF]

Geometriae Dedicata, 2000
Erworben im Rahmen der Schweizer Nationallizenzen (http://www.nationallizenzen.ch)
Bödi, Richard, Immervoll, Stefan
openaire   +2 more sources

Double Sided Band-pass Frequency Selective Surface Based on Matryoshka Geometry [PDF]

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
This paper describes the development of a double-sided band-pass frequency selective surface based on Matryoshka geometry, preserving features such as miniaturization, multiband operation and stability of polarization and angle of incidence.
Marina de O. Alencar, Alfredo G. Neto, Marcos T. de Melo, Amanda G. Barboza   +3 more
doaj   +1 more source

Large Incidence-free Sets in Geometries [PDF]

The Electronic Journal of Combinatorics, 2012
Let $\Pi = (P,L,I)$ denote a rank two geometry. In this paper, we are interested in the largest value of $|X||Y|$ where $X \subset P$ and $Y \subset L$ are sets such that $(X \times Y) \cap I = \emptyset$. Let $\alpha(\Pi)$ denote this value. We concentrate on the case where $P$ is the point set of $\mathsf{PG}(n,q)$ and $L$ is the set of $k$-spaces in
De Winter, Stefaan, Schillewaert, Jeroen, Verstraete, Jacques   +2 more
openaire   +2 more sources

Factorizations in Geometric Lattices

Axioms
This article investigates atomic decompositions in geometric lattices isomorphic to the partition lattice Π(X) of finite set X, a fundamental structure in lattice theory and combinatorics.
Alex Aguila, Elvis Cabrera, Jyrko Correa-Morris   +2 more
doaj   +1 more source

Fabrication of Multilayer Cu/Ni Systems with Nanometric Layers by Electrolysis Method [PDF]

Archives of Metallurgy and Materials, 2018
The paper presents research results of multilayer systems composed of alternate Cu/Ni layers. The layers thickness obtained by the galvanic treatment was determined by using the transmission electron microscopy and X-ray diffraction method in the grazing
M. Spilka, R. Babilas, W. Ratuszek, J. Kowalska, K. Matus   +4 more
doaj   +1 more source

Regular Incidence Complexes, Polytopes, and C-Groups

, 2017
Regular incidence complexes are combinatorial incidence structures generalizing regular convex polytopes, regular complex polytopes, various types of incidence geometries, and many other highly symmetric objects.
A Pasini, AC Duke, B Grünbaum, B Monson, B Monson, B Monson, Branko Grünbaum, D Pellicer, D Pellicer, D Pellicer, E Schulte, E Schulte, E Schulte, E Schulte, E Schulte, E Schulte, E. Schulte, F Buekenhout, F Buekenhout, F Buekenhout, G Cunningham, GC Shephard, HSM Coxeter, HSM Coxeter, HSM Coxeter, J. Tits, JE Humphreys, L Danzer, L. Danzer, M Aschbacher, M Aschbacher, MI Hartley, P McMullen, P McMullen, P McMullen, RC Lyndon, Richard P. Stanley, RM Weiss   +37 more
core   +1 more source

FEMORAL NECK FRACTURES – BIOLOGICAL ASPECTS AND RISK FACTORS. [PDF]

Journal of IMAB, 2014
The strength of the bone is a function of its mechanical properties and bone geometry. The probability of the occurrence of femoral neck fracture is associated with both the trauma mechanism and magnitude of the acting forces as well as with the bone ...
Orlin Filipov
doaj   +1 more source

The classification of flag-transitive Steiner 3-designs

, 2004
We solve the long-standing open problem of classifying all 3-(v,k,1) designs with a flag-transitive group of automorphisms (cf. A. Delandtsheer, Geom. Dedicata 41 (1992), p. 147; and in: "Handbook of Incidence Geometry", ed. by F.
Huber, Michael
core   +1 more source