Results 31 to 40 of about 44,172 (284)

Die Entwicklung des Konzepts von Hans-Dietrich Genscher in der bundesdeutschen Entspannungspolitik in den Jahren 1974-1989. Herkunft – Instrumente – Auswirkungen

open access: yesPoliteja, 2020
The Evolution of the Concept of Hans-Dietrich Genscher in the German Détente Policy in the Years 1974-1989. Genesis – Instruments – Impact The main aim of this article is to present the genesis, instruments and real influence of the concept of the ...
Janusz Józef Węc
doaj   +1 more source

Stringy black holes and energy conditions [PDF]

open access: yes, 1996
The energy condition inequalities for the matter stress energy comprised out of the dilaton and Maxwell fields in the dilaton-Maxwell gravity theories emerging out of string theory are examined in detail. In the simplistic 1+1 dimensional models, $R\le 0$
A. Borde   +27 more
core   +4 more sources

Fiasko reformy polityki imigracyjnej, kontroli granic zewnętrznych oraz polityki azylowej Unii Europejskiej w latach 2015-2020

open access: yesPoliteja, 2023
THE FAILURE OF THE REFORM OF THE EUROPEAN UNION’S IMMIGRATION POLICY, EXTERNAL BORDER CONTROL, AND ASYLUM POLICY BETWEEN 2015 AND 2020: A CRITICAL ANALYSIS The primary research objective of the article is to evaluate the reform of the immigration ...
Janusz Józef Węc
doaj   +1 more source

Uncertainty analysis of a WEC model test experiment

open access: yes, 2021
Ocean wave energy has significant technical potential but limited full-scale deployments and technology convergence. Consequently, guidelines for developing wave energy converters (WECs) are still developing themselves, especially around experimental ...
J. Orphin, J. Nader, I. Penesis
semanticscholar   +1 more source

Analytical and Numerical Analysis of the Dynamics of a Moonpool Platform–Wave Energy Buoy (MP–WEB)

open access: yesEnergies, 2019
In this work the hydrodynamic performance of a novel wave energy converter configuration was analytically and numerically studied by combining a moonpool and a wave energy buoy, called the moonpool platform−wave energy buoy (MP−WEB).
Fankai Kong   +5 more
doaj   +1 more source

Cable Robot Performance Evaluation by Wrench Exertion Capability [PDF]

open access: yes, 2018
Although cable driven robots are a type of parallel manipulators, the evaluation of their performances cannot be carried out using the performance indices already developed for parallel robots with rigid links.
Boschetti, Giovanni, Trevisani, Alberto
core   +2 more sources

Methods and Trends for Water-Energy-Carbon Emissions Nexus Assessment

open access: yesChemical Engineering Transactions, 2021
The Water-Energy-Carbon Emissions (WEC) nexus has been drawing increasing attention. However, very few studies, to date, were conducted to comprehensively review the assessment approaches, challenges and trends of future works for regional and sectoral ...
Xue-Chao Wang   +2 more
doaj   +1 more source

Reforma wspólnej polityki bezpieczeństwa i obrony Unii Europejskiej w latach 2016-2017

open access: yesPoliteja, 2018
The Reform of the Common Security and Defence Policy of the European Union in 2016‑2017 The subject of the article is the reform of the Common Security and Defence Policy in 2016‑2017 following the adoption of the new EU External Security Strategy by the
Janusz J. Węc
doaj   +1 more source

Real-time wave excitation force estimation for an experimental multi-DOF WEC

open access: yesOcean Engineering, 2020
A wave energy converter (WEC) needs an active control strategy to maximise efficiency in a wide range of operating conditions. Many control strategies require knowledge of the wave excitation force, a quantity which cannot be measured in operation.
A. Hillis, A. Brask, C. Whitlam
semanticscholar   +1 more source

Scale Factor Duality and the Energy Condition Inequalities [PDF]

open access: yes, 1996
We demonstrate, by a simple analysis, that cosmological line elements related by scale factor duality also exhibit a duality with respect to the conservation/violation of the Weak Energy Condition (WEC) by the matter that acts as the source in the one ...
Antoniadis   +35 more
core   +2 more sources

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