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Wyświetlanie 1-15 z 675
Tytuł:
Should we grow GM crops in the EU? Let the countries decide for themselves!
Autorzy:
Twardowski, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/703731.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
GMO legislation
opt-out mechanism
opt-in mechanism
Opis:
The cultivation of genetically modified crops has long been a contentious issue in the European Union. Now a group of biotech specialists and legal experts propose a mechanism to take the political edge out of the authorization process.
Źródło:
Nauka; 2018, 1
1231-8515
Pojawia się w:
Nauka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Znaczenie własności prywatnej w gospodarce
THE MEANING OF THE PRIVATE OWNERSHIP IN ECONOMY
Autorzy:
Dobrowolski, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/419083.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Gdański. Wydział Ekonomiczny
Tematy:
market mechanism
competition mechanism
nationalized economy
semi-privatisation
Opis:
The article analyses the possibility of initiating and functioning of market and competition’s mechanisms in a nationalized economy and in a market economy (in which private enterprises dominate).The analysis showed that the market mechanism cannot function in a nationalized economy, whereas the competition mechanism assumes a special, deformed form. The both mechanisms can effectively function only in private market economy. In the last part of the article, the problem of semi-privatisation as a result of choice of different privatisation methods was raised. In this part of the article, the analysis of semi-privatisation impact on functioning of market mechanism and competition mechanism on different types of partial markets was also presented.
Źródło:
Współczesna Gospodarka; 2010, 1, 1; 49-56
2082-677X
Pojawia się w:
Współczesna Gospodarka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Remarks on the Gödelian Anti-Mechanist Arguments
Autorzy:
Raatikainen, Panu
Powiązania:
https://bibliotekanauki.pl/articles/1796974.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Semiotyczne
Tematy:
Gödel
incompleteness
mechanism
Opis:
Certain selected issues around the Gödelian anti-mechanist arguments which have received less attention are discussed.
Źródło:
Studia Semiotyczne; 2020, 34, 1; 267-278
0137-6608
Pojawia się w:
Studia Semiotyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synteza optymalna mechanizmów generujących krzywe otwarte
Optimal synthesis of open paths generators
Autorzy:
Buśkiewicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/386759.pdf
Data publikacji:
2010
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
mechanizmy dźwigniowe
mechanizm korbowo-wodzikowy
crank-slider mechanism
planar mechanism
Opis:
W pracy zaprezentowano metodę syntezy generatorów krzywych otwartych. Przedstawiono ogólne założenia i na tej podstawie wyprowadzono matematyczne formuły umożliwiające rozwiązanie zadań syntezy czworoboku przegubowego oraz mechanizmu korbowo-wodzikowego. Metoda może być rozwinięta na pozostałe płaskie mechanizmy dźwigniowe z trzema ogniwami ruchowymi. Zaprezentowano wyniki testów numerycznych dla wybranych krzywych.
The synthesis method of planar mechanisms generating open paths was presented. On the base of taken assumptions mathematical formulas for the synthesis of four-bar linkage and crank-slider mechanism were derived. The method can be adopted to the other planar mechanisms with three moving links. The results of the numerical experiments for chosen curves were presented and discussed.
Źródło:
Acta Mechanica et Automatica; 2010, 4, 1; 13-19
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Authentication Mechanism Based on Adaptable Context Management Framework for Secure Network Services
Autorzy:
Sepczuk, M.
Powiązania:
https://bibliotekanauki.pl/articles/106295.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
secure authentication mechanism
user-friendly authentication mechanism
contextual data
cloud computing
Opis:
A system, which uses context information is a new trend in IT. A lot of researchers create frameworks, which collect some data and perform actions based on them. Recently, there have been observed more and more different security solutions, in which we can use context. But not each works dynamically and ensures a high level of user's quality of experience (QoE). This paper outlines what the context information is and shows a secure and user-friendly authentication mechanism for a mail box in cloud computing, based on using contextual data.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2014, 14, 2; 31-45
1732-1360
2083-3628
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dimensional synthesis of active suspension cab mechanism links
Autorzy:
Brewczyński, D.
Tora, G.
Powiązania:
https://bibliotekanauki.pl/articles/243397.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
active vibration damping
platform mechanism
synthesis of the mechanism’s dimensions
Opis:
One of the directions of the heavy duty machine is the operator cabin construction, which provides a high level of comfort. Adequate control of active suspension drives can reduce low frequency and large amplitude vibrations occurring in a number of cabin degrees of freedom. The main link of the mechanism is the platform with cab suspended on two rockers and one actuator. Article proposes methods for determining the length of suspension arms, the width of the platform and centres of the joints, which are connected to the suspension. It has been proved for the flat case that if the momentary centre of rotation of the platform relative to the machine frame is located inside the road roughness zone is a single drive can effectively reduce transverse vibration and angle vibration around the longitudinal machine axis. Further conditions that determine links size are to prevent from peculiar positions, to avoid collision between cab wall and suspension joints. Presented relations between the height of the waist rough roads, wheelbase machine, cab mounting height on the machine and the dimensions of the link suspension mechanism. Presented dimensional calculation results cab suspension links dedicated to Caterpillar 924 GZ loader. Assuming the vertical driving cab calculated inaccuracy of its transverse displacements. Presented the results showing influence of the cab assembly height on the cabin mounting links dimensions.
Źródło:
Journal of KONES; 2013, 20, 4; 47-53
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anisotropy of the neutron emission from PF-360 facility operated without and with solid-state targets
Autorzy:
Czaus, K.
Baranowski, J.
Sadowski, M.
Skladnik-Sadowska, E.
Zebrowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/146908.pdf
Data publikacji:
2001
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
anisotropy
beam-target mechanism
dense plasma focus (DPF)
neutron yield
thermal mechanism
Opis:
The paper reports on detailed studies of an anisotropy of the fusion-produced neutrons emitted from the modernized PF-360 facility [10], which has been operated with a pure deuterium-gas filling, without and with some additional solidstate targets containing deuterium atoms. Under standard operational conditions, anisotropy of the neutron yield from the PF-360 facility is similar to that observed in other PF devices. For the first time the neutron emission anisotropy has been measured in the PF experiments performed with a planar cryogenic target covered with a heavy-ice (D2O) layer. Changes in the Yn(Φ)/Yn(90°) ratio, particularly for angles Φ = 0–60°, have been explained by the known features of the angular distribution of fast deuterons.
Źródło:
Nukleonika; 2001, 46, suppl. 1; 77-80
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Europejski model nadzoru finansowego – kierunki rozwoju
The European model of financial supervision. Main developments
Autorzy:
Szpringer, Włodzimierz
Powiązania:
https://bibliotekanauki.pl/articles/2216103.pdf
Data publikacji:
2016
Wydawca:
Kancelaria Sejmu. Biuro Analiz Sejmowych
Tematy:
European Banking Union
European Central Bank
single supervisory mechanism
single resolution mechanism
european stability mechanism
Meroni, Romano and Pringle doctrine
Opis:
The complexity and uncertainty in the application of the European system of financial supervision is due to the fact that its particular concepts were implemented at different times. First, it was the system of European financial supervisors (EBA, EIOPA, ESMA), which was primarily aimed at coordination of national activities. Then, the European Banking Union was established, comprised of the Single Supervisory Mechanism (SSM), and the Single Resolution Mechanism (SRM), as well as the European Stability Mechanism (ESM) which must also be seen in the context of assistance to troubled banks. Difficulties of interpretation are further compounded by a lack of consistency in approach to the institutions subject to examination. Should they include only the euro zone, or the whole EU, only the banks or other institutions as well? If you take into account the SSM, SRM or ESM, it is often not very clear who and when should act what tools should be applied, For example, when the ECB may, and should, correct decisions of national supervisors and what, in the context of increasing involvement of the ECB in the banking union, is the role of the ESRB; whether and when banks can possibly challenge decisions eg. on establishing a capital buffer or inclusion on the SIFI list, etc. Also unclear is the role of the EBA and ESMA in the context of the creation of a banking union, SSM, SRM and ESM and delegation of regulatory powers of ECB and the Commission to regulatory agencies (Meroni doctrine) or creation of regulatory agencies beyond the Treaty (Pringle doctrine).
Źródło:
Zeszyty Prawnicze BAS; 2016, 1(49); 9-43
1896-9852
2082-064X
Pojawia się w:
Zeszyty Prawnicze BAS
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mathematical Modelling and Feasibility Study ofthe Biomimetic Undulating Fin of a Knife Fish Robot
Autorzy:
Meera, A. A.
Sudheer, A. P.
Powiązania:
https://bibliotekanauki.pl/articles/385068.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
biomimetic design
propulsion
fins
mechanism
underwater robotics
five bar mechanism
fish robot
Opis:
Bio-mimetic underwater robotics is an emerging area of research, which has the potential to substitute the conventional energy inefficient mode of underwater propulsion using thrusters. In this paper, the mathematical modelling of the undulating fin is done and the effect of various parameters of the mechanism design on the available workspace is studied. The mathematical beauty is revealed, for the curves representing the mechanical constraint and the family of undulating waves. The feasibility of a wave to be generated by the mechanism was analyzed.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2016, 10, 1; 17-25
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The European system of financial supervision – regulatory impact assessment
Autorzy:
Szpringer, Mariusz
Szpringer, Włodzimierz
Powiązania:
https://bibliotekanauki.pl/articles/565664.pdf
Data publikacji:
2017-10-10
Wydawca:
Uniwersytet Warszawski. Wydawnictwo Naukowe Wydziału Zarządzania
Tematy:
European banking union
European Central Bank
Single Supervisory Mechanism
Single Resolution Mechanism
European Stability Mechanism Meroni, doctrine
regulatory impact assessment
Opis:
Complexity and uncertainty in the application of the regulations of the European system of financial supervision are due to the fact that its particular elements were implemented over a period of time. First, it was a system of European financial supervision authorities i.e. the European Banking Authority (EBA), the European Insurance and the Occupational Pensions Authority (EIOPA) and the European Securities and Markets Authority (ESMA), whose main objective was to coordinate national actions. Then there were established the European Banking Union, including the Single Supervisory Mechanism (SSM), the Single Resolution Mechanism (SRM), as well as the European Stability Mechanism (ESM), which constitutes also a part of the system of support for endangered banks. Legal interpretation problems are a result of differences in the scope of competences of these entities. For example, there is uncertainty whether the regulations refer to the eurozone or the whole European Union and if they refer to banks only or to other financial institutions as well. An analysis of the SSM, the SRM or the ESM does not always offer a clear answer to questions such as: who, when and using what tools should act; when, for example, the ECB may and should correct the decisions of national supervisors; what is the role of the ESRB, if we take account of the enhanced competences of the ECB in the banking union; if and when banks may question supervisory decisions concerning, for example, establishing a buffer or classifying an institution as SIFI, etc. Similarly, the role of the EBA or the ESM is unclear in the context of the establishment of the banking union, the SSM, the SRM, the ESM and the delegation of power of the ECB and the European Commission to regulatory agencies (Meroni doctrine) or the practice of establishing regulatory agencies outside the bounds of the treaty (Pringle doctrine). Therefore the regulatory landscape in this context requires impact assessment.
Źródło:
Journal of Banking and Financial Economics; 2017, 2(8); 84-104
2353-6845
Pojawia się w:
Journal of Banking and Financial Economics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Signalling and multiple regulatory mechanisms for NADPH oxidase-mediated deliberate ROS production in plant cells
Autorzy:
Kuchitsu, K.
Kitahata, N.
Kimura, S.
Kawarazaki, T.
Kaya, H.
Kurusu, T.
Powiązania:
https://bibliotekanauki.pl/articles/80951.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
NADPH oxidase
conference
regulatory mechanism
signalling
reactive oxygen species
plant cell
molecular mechanism
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
AN OVERVIEW OF THE LEGAL FRAMEWORK OF THE BANKING UNION
Autorzy:
Podgórski, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/915895.pdf
Data publikacji:
2018
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II
Tematy:
European Union
Banking Union
European Central Bank
Single Supervisory Mechanism
Single Resolution Mechanism
Opis:
The article provides an overview of the legal structure of the Banking Union consisting of two pillars – the Single Supervisory Mechanism and the Single Resolution Mechanism. As a point of departure, it discusses the reasons for the creation of the Banking Union. Then, it analyses the legal structure of the Single Supervisory Mechanism in order to compare it to the legal framework of the Single Resolution Mechanism and shows that the differences in their design are a corollary of disparate legal bases for both instruments. Finally, it argues that the disputed legal basis for the regulation establishing the Single Resolution Mechanism is sufficient in light of Meroni doctrine as formulated in the Short-selling case.
Źródło:
Review of European and Comparative Law; 2018, 33, 2; 95-118
2545-384X
Pojawia się w:
Review of European and Comparative Law
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New insights into the promotion mechanism of $(NH_4)_2SO_4$ in sulfidization flotation: a combined experimental and computational study
Autorzy:
Chen, Daixiong
Liu, Mengfei
Hu, Bo
Dong, Yanhong
Xue, Wei
He, Peng
Chen, Fang
Zhu, Jianyu
Zhang, Chenyang
Powiązania:
https://bibliotekanauki.pl/articles/1446762.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
malachite
promotion
sulfidization
flotation
mechanism
Opis:
Ammonium sulfate ((NH4)2SO4) exhibits promoting effects in malachite sulfidization flotation. However, the promotion mechanism remains poorly understood. In this study, micro-flotation tests, zeta-potential measurements, scanning electron microscopy coupled with energy-dispersive spectroscopy (SEM-EDS), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS) and materials studio simulation (DFT) were used to investigated the promotion mechanism of $(NH_4)_2SO_4$. Micro-flotation test demonstrates that the recovery of malachite from 73% increased to 83%, when the (NH4)2SO4 was added. Contact angle and zeta potential test results indicate that addition of $Na_2S•9H_2O$ changes the surface properties of malachite and provide the conditions for adsorption of butyl xanthate (BX). After promoting the sulfidization by $(NH_4)_2SO_4$, BX is more effective in improving the hydrophobicity. SEM-EDS and AFM results show that $(NH_4)_2SO_4$ can improve performance and stability of sulfidization. X-ray photoelectron spectroscopy indicates that after sulfidization, polysulfides and cuprous were appeared in malachite surface, infers that a redox reaction occurs between sulfur and copper on the surface of malachite. After addition of $(NH_4)_2SO_4$, the percentage of polysulfides and cuprous were increased, it implies $(NH_4)_2SO_4$ can accelerate the redox reaction. Computational results show that after adding $(NH_4)_2SO_4$, the adsorption energy of HS- on the malachite surface is reduced, implies that $(NH_4)_2SO_4$ can improve the stability of HS-adsorption on the surface of malachite.
Źródło:
Physicochemical Problems of Mineral Processing; 2021, 57, 5; 57-70
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lightweight Security Mechanism to Mitigate Active Attacks in a Mobile Ad-hoc Network
Autorzy:
Ahmed, Uthumansa
Shantha, Fernando
Powiązania:
https://bibliotekanauki.pl/articles/2055257.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Blackhole
lightweight
mechanism
security
simulation
Opis:
Mobile Ad hoc Network (MANET) is a type of Ad hoc network. General properties of MANET open the network to various security threats. Network layer-based Active attacks are widespread and destructive. Available security solutions contain complex calculations. Therefore, the objective of this research is to propose a lightweight security mechanism to enhance the security of data communications between source and destination nodes in a MANET from network layer-based active attack. Blackhole is used as a network layer-based Active attack. The network performance is evaluated using Packet Delivery Ratio (PDR), Average End-to-End Delay (AEED), Throughput, and Simulation Processing Time at Intermediate Nodes (SPTIN). The controller network was used to compare the performance of each network. During the experiment due to the impact of the blackhole attack, compared to the controller network, the PDR was found to be 0.28%, AEED was infinity and Throughput was 0.33%. The performance of the proposed security mechanism was compared with that of the controller network, and the values of PDR, AEED, Throughput, and SPTIN were found to be 98.0825%, 100.9346%, 99.9988%, and 96.5660%, respectively. The data packet delivery ratio was 100.00% compared to that of the controller network. The network that was affected by a blackhole attack showed a higher amount of ADDR than the controller network and the lowest amount of PDR. The network that was affected by the blackhole showed underperformance compared to the controller network. The proposed security mechanism performs well in PDR, AEED, and Throughput compared to the controller network. The AEED and SPTIN values prove that the proposed solution is free from complex calculations. The scope of the solution can be expanded into a lightweight Intruder Detection System to handle different types of security attacks in MANETs.
Źródło:
International Journal of Electronics and Telecommunications; 2022, 68, 1; 145--152
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Designing Auctions: A Historical Perspective
Autorzy:
Karpowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/307899.pdf
Data publikacji:
2011
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
auctions
game theory
mechanism design
Opis:
Auction is a form of organization of competition that leads to the assignment and valuation of resources based on the information obtained from the competing agents. From the perspective of systems science it is a distributed resource allocation algorithm applied in the environment with information asymmetry, i.e., where the interconnected and interacting subsystems have different information about the system as a whole. This paper presents an overview of the historical development of mathematical theory underlying modern approach to auction design. Selected practical applications of the theory are also discussed.
Źródło:
Journal of Telecommunications and Information Technology; 2011, 3; 114-122
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 675

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