Results 51 to 60 of about 12,679 (203)

Construction of minimal non-invertible skew-product maps on 2-manifolds

, 2014
Applying the Hric-J\"ager blow up technique, we give an affirmative answer to the question about the existence of non-invertible minimal circle-fibered self-maps of the Klein bottle.
Trofimchuk, Sergei, Šotola, Jakub
core   +1 more source

Leveraging Generative Artificial Intelligence to Enhance Carbon Performance in Supply Chains Through Green Product Innovation and End‐of‐Life Product Management: AI‐Driven Carbon Performance

Business Strategy and the Environment, Volume 35, Issue 4, Page 5268-5284, May 2026.
ABSTRACT This study illustrates how organizations reconcile their information processing capabilities with uncertainty within the supply chain (SC) through generative artificial intelligence (GAI) to achieve carbon performance (CP). A quantitative research methodology is applied, and 155 responses from manufacturing firms are analyzed through ...
Syed Muhammad Shariq, Roman Sperka, Saqib Shamim, Hassan Ali   +3 more
wiley   +1 more source

DISTINGUISHING BETWEEN SPOT AND TORUS MODELS OF HIGH-FREQUENCY QUASIPERIODIC OSCILLATIONS

Acta Polytechnica, 2014
In the context of high-frequency quasi-periodic oscillation (HF QPOs) we further explore the appearance of an observable signal generated by hot spots moving along quasi-elliptic trajectories close to the innermost stable circular orbit in the ...
Vladimír Karas, Pavel Bakala, Gabriel Török, Michal Dovčiak, Martin Wildner, Dalibor Wzientek, Eva Šrámková, Marek Abramowicz, Kateřina Goluchová, Grzegorz P. Mazur, Frédéric H. Vincent   +10 more
doaj   +1 more source

Is the Region of Visegrad Countries on the Track to the Euro Area? Recent Evidence from the Real Convergence Perspective [PDF]

Экономика региона, 2014
After enlargement of the European Union and subsequently joining of a new member states to the euro area, the question of economic convergence attracted considerable research interest.
Daniel Stavárek, Lucie Tomanova
doaj   +1 more source

Unconstrained Lagrangian Variational Principles for the Einstein Field Equations

Entropy, 2023
This paper deals with the problem of establishing a systematic theoretical formulation of variational principles for the continuum gravitational field dynamics of classical General Relativity (GR).
Claudio Cremaschini, Massimo Tessarotto
doaj   +1 more source

Disc-oscillation resonance and neutron star QPOs: 3:2 epicyclic orbital model

, 2010
The high-frequency quasi-periodic oscillations (HF QPOs) that appear in the X-ray fluxes of low-mass X-ray binaries remain an unexplained phenomenon. Among other ideas, it has been suggested that a non-linear resonance between two oscillation modes in an
Abramowicz, Abramowicz, Abramowicz, Abramowicz, Abramowicz, Abramowicz, Abramowicz, Akmal, Aliev, Baldo, Barret, Barret, Barret, Belloni, Belloni, Berti, Bhattacharyya, Blaes, Blaes, Blaes, Boutelier, Bursa, Bursa, Chandrasekhar, Chodos, De Villiers, E. Šrámková, G. Török, Glendenning, Hartle, Hawley, Horák, Horák, Horák, Horák, Horák, Kluźniak, Kluźniak, Kluźniak, Kluźniak, Kluźniak, Kotrlová, Kotulič Bunta, Kozlowski, KStuchlík otrlová, Lattimer, Lattimer, M. Urbanec, McClintock, Miller, Miller, Montero, Méndez, Okazaki, Ortega-Rodríguez, P. Bakala, P. Čech, Paczyński, Psaltis, Rebusco, Rebusco, Reynolds, Rezzolla, Rezzolla, Rubio-Herrera, Schnittman, Silbergleit, Straub, Stuchlík, Török, Török, Török, Török, Török, Török, Török, Török, Török, Török, Urbanec, van der Klis, Vio, Wagoner, Wagoner, Wagoner, Z. Stuchlík, Zanotti, Zanotti, Říkovská Stone, Šrámková, Šrámková   +90 more
core   +1 more source

Characterization of the Stability and Reuse Potential of Aged Epoxy Materials for Sustainable Management of Insulation Waste

Advances in Polymer Technology, Volume 2026, Issue 1, 2026.
This study examines the feasibility of mechanical recycling of epoxy resins exhibiting different levels of degradation (new, thermally aged, and UV‐exposed) and their subsequent incorporation into a virgin cold‐curing epoxy matrix based on bisphenol A.
Jaroslav Hornak, Ondrej Michal, Pavel Rous, Jan Frank, Pavel Trnka, Srijoni Sengupta   +5 more
wiley   +1 more source

Pre‐industrial Use of Bauxite by Late Gothic Goldsmith Masters: Analytical Evidence and Experimental Study

ChemPlusChem, Volume 90, Issue 6, June 2025.
First analytical evidence and replication of yet undescribed substantial change in gilding technology in the early modern period ‐ the replacement of imported red clay (bole) with locally available bauxite. Proof of its source ‐ Croatian Minjera, according to a unique find of mineral diaspore.
David Hradil, Janka Hradilová, Petr Bezdička, Ivan Razum   +3 more
wiley   +1 more source

BOOK REVIEW: Marshall S.A. 2012: Flies: The Natural History and Diversity of Diptera.

European Journal of Entomology, 2013
Marshall S.A. 2012: Flies: The Natural History and Diversity of Diptera. Firefly Books, New York (U.S.A.) and Richmont Hill (Canada), hardcover, 616 pp., more than 2,000 colour photographs, pictorial key to fly families, glossary, bibliography, index ...
J. ROHÁČEK, J. ŠEVČÍK
doaj   +1 more source

Bibliography and checklist of foliicolous lichenized fungi up to 1992 [PDF]

, 1993
Bibliographic records are presented of 324 scientific papers on foliicolous lichenized fungi published subsequent to Santesson’s survey of 1952. The 482 species presently known are listed in an alphabetical checklist, with references to important ...
Farkas, Edit E., Sipman, Harrie J. M.
core