Results 91 to 100 of about 12,496 (186)

Magnetized Black Holes: Ionized Keplerian Disks and Acceleration of Ultra-High Energy Particles

open access: yesProceedings, 2019
Properties of charged particle motion in the field of magnetized black holes (BHs) imply four possible regimes of behavior of ionized Keplerian disks: survival in regular epicyclic motion, transformation into chaotic toroidal state, destruction due to ...
Zdeněk Stuchlík   +2 more
doaj   +1 more source

Atmospheric deposition of nitrogen and sulphur in relation to critical loads of nitrogen and acidity in the Czech Republic

open access: yesJournal of Forest Science, 2006
Estimates of dry and wet deposition of sulphur and nitrogen were compared with critical loads of sulphur and nitrogen in the Czech Republic on 1 ×1 km grid.
M. Zapletal
doaj   +1 more source

Ansichtskarten von Troppau vor 1945, betrachtet in Opava 2018

open access: yes, 2020
Am Beispiel von zwei Ausstellungskatalogen historischer Ansichtskarten aus Troppau (Opava) vor 1945 geht der Aufsatz der Frage nach, wie in diesen beiden Medien regionale Kontinuitäten repräsentiert werden können. Die Verwendung deutscher neben tschechischen Ortsbezeichnungen sowohl auf den Karten selbst wie in den Kataloglegenden erweist sich dabei ...
openaire   +2 more sources

The Cost-Based Lean Approach to the Information Logistics Business System Modelling

open access: yesJournal of Computing and Information Technology, 2019
The paper highlights the problems of modelling the complex logistics manufacturing system which is to meet the needs of the contemporary lean approach to manufacturing.
Robert Bucki, Petr Suchanek
doaj   +1 more source

Breeding avifauna of Opava Mountains and their foothills, Opole Silesia [PDF]

open access: yesActa Musei Silesiae, Scientiae Naturales, 2019
Abstract In 2010, an attempt was made to quantify bird species breeding in the Opava Mts. and their foothill (c. 135 km 2 , including c. 40 km 2 [31%] of forests). The area is situated in the extreme south of Opole Silesia, SSW Poland.
openaire   +1 more source

Production of Cardenolides in Galena Opava

open access: yesChemické listy
Procedures for manufacture of cardenolides were developed in VÚPL Prague after the World War II and in the end of fifties their manufacture started in Galena Opava. lanatoside ABC was produced first, followed by pure lanatoside C and digoxine. The technique of countercurrent partitioning (the Craig partitioning) was utilized for the separation of ...
openaire   +1 more source

The Laws of Natural Deduction in Inference by DNA Computer

open access: yesThe Scientific World Journal, 2014
We present a DNA-based implementation of reaction system with molecules encoding elements of the propositional logic, that is, propositions and formulas.
Łukasz Rogowski, Petr Sosík
doaj   +1 more source

On the Role of the Tail Term in Electromagnetic Radiation Reaction

open access: yesUniverse
In a recent study devoted to the influence of electromagnetic radiation reaction on the motion of radiating charged particles in magnetized black hole spacetimes the authors claim that the tail term cannot be neglected in the complete DeWitt–Brehme ...
Zdeněk Stuchlík   +3 more
doaj   +1 more source

Ideal marker for targeted axillary dissection (IMTAD): a prospective multicentre trial. [PDF]

open access: yesWorld J Surg Oncol, 2023
Žatecký J   +9 more
europepmc   +1 more source

WHOO! -- White Hole Observatory Opava. [PDF]

open access: yesContributions of the Astronomical Observatory Skalnaté Pleso, 2020
openaire   +1 more source

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