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Wyświetlanie 1-15 z 2376
Tytuł:
Kształtowanie się przepisów dotyczących zapewniania stateczności poprzecznej statków w stanie nieuszkodzonym
Evolution of intact ship stability assurance
Autorzy:
Szozda, Z.
Powiązania:
https://bibliotekanauki.pl/articles/906666.pdf
Data publikacji:
2004
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
stateczność
ocena stateczności
kryteria stateczności
stability
stability assessment
stability criteria
Opis:
W artykule przedstawiono etapy formułowania kryteriów oceny stateczności statków w stanie nieuszkodzonym. Dokonano krytycznej oceny aktualnego podejścia do zapewnienia stateczności statków. Przedstawiono także bieżące zamierzenia Międzynarodowej Organizacji Morskiej w tym zakresie.
The paper presents process of formulation of intact ship stability criteria. The critical assessment of present approach to stability assurance is made. Present intentions of International Maritime Organisation in this aspect are presented.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2004, 3 (75); 129-136
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stabilność systemu finansowego Unii Europejskiej
Stability of the financial system of the European Union
Autorzy:
Mikita, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2197336.pdf
Data publikacji:
2021
Wydawca:
Kancelaria Sejmu. Biuro Analiz Sejmowych
Tematy:
financial system
financial stability
European Union
stability mechanisms
stability indicators
Opis:
The aim of the article is to present activities undertaken at the EU level to ensure financial stability, and to assess the degree of stability of the EU financial system on the basis of selected indicators. The first part of the article introduces the concept of financial system stability and describes its importance in the modern economy and the methods of estimating the stability of the financial system. The second part of the article is devoted to the presentation of activities undertaken by the EU to increase the stability of the financial system, and the assessment of financial stability on the basis of two indicators: the Z-score indicator, used to assess the stability of the banking system, and the Stock Price Volatility index, showing the stability of the capital market.
Źródło:
Studia BAS; 2021, 3(67); 87-116
2080-2404
2082-0658
Pojawia się w:
Studia BAS
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Examples of weaknesses of the 2nd Generation Intact Stability Criteria
Autorzy:
Szozda, Z.
Powiązania:
https://bibliotekanauki.pl/articles/359914.pdf
Data publikacji:
2014
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
ship stability
stability regulations
2nd Generation Intact Stability Criteria
Opis:
One of the main tasks of the Sub-committee on Ship Design and Construction (SDC) of the International Maritime Organization (IMO) is development of the 2nd Generation Intact Stability Criteria. The paper presents the framework and the approach agreed by the Sub-committee. The framework bases on the concept of stability failure and vulnerability assessment. However, the criteria, standards and regulations developed so far have weaknesses that may prevent some IMO Member States from adoption of the regulations on the Maritime Safety Committee (MSC) level. The paper presents some of the weaknesses that are the most important from the Author’s point of view. Awareness of the weaknesses may facilitate the future work of the Sub-committee and its working groups.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2014, 40 (112); 80-87
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Financial stability: problems of inter-level and cross-sectoral equilibrium
Autorzy:
Gospodarchuk, Galina
Suchkova, Ekaterina
Powiązania:
https://bibliotekanauki.pl/articles/22446430.pdf
Data publikacji:
2019
Wydawca:
Instytut Badań Gospodarczych
Tematy:
financial stability
indicators of financial stability
analysis of financial stability
instruments for regulating financial stability
Opis:
Research background: As part of the creation of an effective mechanism for managing financial stability, the tasks of providing an inter-level and cross-sectoral financial equilibrium remain unresolved. So far, clear and unambiguous criteria for financial stability have not been formulated, with which monetary and prudential policies could be related, as well as measures to minimize systemic and individual risks. The problem of creating a system of indicators comes to the fore, allowing the creation of new effective instruments for regulation of financial flows that contribute to the prevention of financial crises. Purpose of the article: The paper proposes a system of indicators of financial stability, which allows for solving the tasks of inter-level and cross-sectoral equilibrium in the selection of regulatory tools for monetary and prudential policy. Methods: We have used real interest rates as a measure of financial stability at the macro level. The real rates have been calculated from time series with nominal interest rate and inflation in the credit market (divided into loans to financial and non-financial organizations and individuals), and in the bond market (divided into corporate, municipal, and federal bonds). The analysis of the market and institutional financial stability of the USA, Russia, Japan, Switzerland, Australia over the period 1984?2014 was done. Then, comprehensive investigation on the financial stability in the Russian Federation in 2014?2017 was conducted. The results have been compared against financial stability of individual banks, which was measured using profit to risk ratio. The latter has been calculated from bank?s financial reports using our method, which had been developed earlier. Findings & Value added: We have developed criteria for qualitative assessment of financial stability and the risk map, which helps to identify the level of accumulated imbalances in the market and institutional environment, as well as in the levels and sectors of the economy. The criteria for selecting monetary and prudential regulatory instruments have been formulated depending on the amount of accumulated risks. The criteria for forming a portfolio of regulatory instruments with regard to their rigidity are proposed.
Źródło:
Equilibrium. Quarterly Journal of Economics and Economic Policy; 2019, 14, 1; 53-79
1689-765X
2353-3293
Pojawia się w:
Equilibrium. Quarterly Journal of Economics and Economic Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New generation stability norms –how to approach the task
Autorzy:
Kobyliński, L.
Powiązania:
https://bibliotekanauki.pl/articles/259826.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship stability
stability standards
risk assessment
Opis:
International stability norms included in the Code of Intact Stability 2008 adopted by IMO on 4 December 2008 constitutes the latest set of international requirements on intact stability of ships. However the requirements included in the Code, part of them compulsory (Included in the Part A of the Code), other only recommended (included in the Part B of the Code) are considered as not totally sufficient to assure safety of ships. Because of that, IMO decided that there would be the necessity to develop so called new generation stability criteria covering certain identified hazards, such as parametric resonance, loss of stability in the wave crest broaching, dead ship condition and excessive accelerations when rolling .Those criteria, or rather stability norms, are under development since 2008.The present approach, the work on which is well advanced, is however, not fully satisfactory and several important problems were discovered. This approach may need to be reconsidered or supplemented. The author in the paper presented discusses the weak points of the current approach and proposes possible different approach in order to make future ships safer from the stability point of view.
Źródło:
Polish Maritime Research; 2018, S 1; 56-62
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polynomial stability of evolution operators in Banach spaces
Autorzy:
Megan, M.
Ceausu, T.
Ramneantu, M. L.
Powiązania:
https://bibliotekanauki.pl/articles/254941.pdf
Data publikacji:
2011
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
evolution operator
polynomial stability
exponential stability
Opis:
The paper considers three concepts of polynomial stability for linear evolution operators which are defined in a general Banach space and whose norms can increase not faster than exponentially. Our approach is based on the extension of techniques for exponential stability to the case of polynomial stability. Some illustrating examples clarify the relations between the stability concepts considered in paper. The obtained results are generalizations of well-known theorems about the uniform and nonuniform exponential stability.
Źródło:
Opuscula Mathematica; 2011, 31, 2; 279-288
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
STABILIZACJA MAKROEKONOMICZNA NA BIAŁORUSI W LATACH 2005-2014
MACRECONOMIC STABILITY IN BELARUS IN THE YEARS 2005-2014
Autorzy:
PILARCZYK, Daria
Powiązania:
https://bibliotekanauki.pl/articles/909433.pdf
Data publikacji:
2019-06-27
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
macroeconomic stability
Belarus
macroeconomic stability pentagon
Opis:
The economic policy of modern countries pays particular attention to the issue of macroeconomic stability which ensure sustainable growth and competitiveness. The article focuses on the situation in Belarusian economy from 2005 to 2014 in the context of macroeconomic stability. For research purposes, the author uses the method of the macroeconomic stability pentagon.
Źródło:
Historia@Teoria; 2018, 1, 7; 175-188
2450-8047
Pojawia się w:
Historia@Teoria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A necessary and sufficient condition for sigma-Hurwitz stability of the convex combination of the polynomials
Autorzy:
Białas, S.
Powiązania:
https://bibliotekanauki.pl/articles/255228.pdf
Data publikacji:
2005
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
convex sets of polynomials
stability of polynomial
Hurwitz stability
sigma-stability
Opis:
In the paper are given a necessary and sufficent condition for sigma-Hurwitz stability of the convex combination of the polynomials.
Źródło:
Opuscula Mathematica; 2005, 25, 2; 165-168
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stability of natural systems - theory and practice
Autorzy:
Gerlée, Alina
Powiązania:
https://bibliotekanauki.pl/articles/1943891.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
stability of geoekosystems
definition of stability
idea of numerous states of stability
Opis:
The article discusses definitions and origin of the term “stability”. A difference is made between the stability of systems and their equilibrium. Practical and theoretical application of the term and limitations of its application are presented. The idea of numerous states of stability and consequences related to its application in nature conservation are discussed.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2008, 13; 11-19
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stability and economic freedom in the countries of Central and Eastern Europe: Quantitative analysis
Autorzy:
Karateev, Artem
Powiązania:
https://bibliotekanauki.pl/articles/1041595.pdf
Data publikacji:
2019-12-30
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
stability
political stability
economic freedom
data analysis
Opis:
Exploring the stability of states and political systems is of interest to scientists and politicians all around the world. One of the most important questions in this field is the question of the relationship between stability and freedom. This paper considers the relationship between economic freedom and stability with regards to the example of countries of Central and Eastern Europe. The study uses quantitative analysis and the operationalisation of economic freedom through the Index of Economic Freedom (IEF); furthermore, stability is studied through the Fragile States Index (FSI), and the Political Stability and Absence of Violence/Terrorism Index (PSI). The analysis reveals a strong correlation between economic freedom and stability. According to linear regression models obtained by the author, economic freedom has a strong impact on stability. Models show that most of the components of IEF increase stability, whilst some components decrease it. This means that the same factors affect economic freedom and stability in different ways. In particular, taxes have a very positive effect on stability. At the same it is obvious that taxes reduce economic freedom. This fact allows us to resolve the existing contradictions among politicians and scientists, who differently assess the impact of economic freedom on stability. It may be stated that whilst economic freedom has in general a strong positive effect on stability, it can also have a negative effect.
Źródło:
Eastern Review; 2019, 8; 149-159
1427-9657
2451-2567
Pojawia się w:
Eastern Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and characterization of epoxy methacrylate of (E)-1,3-bis(4-hydroxyphenyl)prop-2-en-1-one and its jute/glass composites
Autorzy:
Thanki, J. D.
Parsania, P. H.
Powiązania:
https://bibliotekanauki.pl/articles/1190152.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
epoxy methacrylate
thermal stability
composites
hydrolytic stability
Opis:
Epoxy methacrylate of (E)-1,3-bis(4-hydroxyphenyl)prop-2-en-1-one (EMC) has been synthesized by condensing 1 equivi. (318g) epoxy resin of (E)-1,3-bis(4-hydroxyphenyl)prop-2-en-1-one and 2.1 equivi. (181g) methacrylic acid using 10 ml triethyl amine as a catalyst, 2.5 g hydroquinone as an inhibitor and 350 ml tetrahydrofuran as a solvent at reflux temperature for 1-7 h. Styrene was used as a reactive diluent. The structure of EMC was supported by FTIR and 1H NMR techniques. EMC showed endothermic transition at 118 °C and 307 °C, respectively due to melting and crosslinking followed by decomposition reaction and EMCS showed endothermic transitions at 81 °C and 255 °C due to branched and uncrosslinked EMCS and some physical change. EMC and EMCS are thermally stable up to about 265 and 332, respectively. EMC followed two steps degradation kinetics, while EMCS followed single step degradation kinetics. Jute and glass composites of EMCS were fabricated by hand lay-up technique followed by compression molding under 20 bar pressure and at 120 °C for 4 h. J-EMCS and G-EMCS showed 22.7 and 182 MPa tensile strength; 10.9 and 156.5 MPa flexural strength; 3.1 and 1.6 kV mm-1 electric strength; and 2.2 x 1012 and 2.8 x 1011 Ohm cm volume resistivity. Both J-EMCS and G-EMCS showed excellent hydrolytic stability even in harsh acidic and saline environments and also in boiling water. Observed equilibrium water content at 35 °C for J-EMCS and G-EMCS in water, 10% of aq. NaCl, and 10% of aq. HCl are 8.8, 10.8, and 8.7% ; 5.8, 4.6, and 4.7%, respectively. The composites may be useful for low load bearing housing units, and in electrical, electronic and marine fields.
Źródło:
World Scientific News; 2016, 42; 182-196
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exponential stability of nonlinear non-autonomous multivariable systems
Autorzy:
Gil', Michael
Powiązania:
https://bibliotekanauki.pl/articles/729507.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
nonlinear nonautonomous systems
exponential stability
absolute stability
Opis:
We consider nonlinear non-autonomous multivariable systems governed by differential equations with differentiable linear parts. Explicit conditions for the exponential stability are established. These conditions are formulated in terms of the norms of the derivatives and eigenvalues of the variable matrices, and certain scalar functions characterizing the nonlinearity. Moreover, an estimate for the solutions is derived. It gives us a bound for the region of attraction of the steady state. As a particular case we obtain absolute stability conditions.
Our approach is based on a combined usage of the properties of the "frozen" Lyapunov equation, and recent norm estimates for matrix functions. An illustrative example is given.
Źródło:
Discussiones Mathematicae, Differential Inclusions, Control and Optimization; 2015, 35, 1; 89-100
1509-9407
Pojawia się w:
Discussiones Mathematicae, Differential Inclusions, Control and Optimization
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Concept of Ship Stability Criteria Based on Cargo Shift Caused by Rolling Due to Gust
Koncepcja kryterium oceny stateczności na podstawie przesuwania się ładunku spowodowanego kołysaniem się statku pod wpływem szkwału
Autorzy:
Szozda, Z.
Powiązania:
https://bibliotekanauki.pl/articles/359928.pdf
Data publikacji:
2004
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
stateczność
ocena stateczności
kryteria stateczności
EXPLO-SHIP 2004
stability
stability assessment
stability criteria
Opis:
At present, intact ship stability criteria have prescriptive nature. At the 45-th Session of SLF Sub-Committee a decision was made to change IMO attitude concerning intact ship stability from prescriptive rules to performance based rules. This paper aims at providing a basic framework for the development of intact ship stability criteria based on a deterministic scenarios concept. The concept is described in general and one simple scenario is calculated in detail. This scenario concerns shifting of a deck cargo.
Obecnie kryteria oceny stateczności statku nie uszkodzonego oparte są na przepisach wynikających ze statystyki wypadków. Na 45. sesji Podkomitetu ds. Stateczności i Linii Ładunkowych podjęto decyzję o zmianie podejścia IMO do oceny stateczności na podejście uwzględniające zjawiska towarzyszące kołysaniom statków. Niniejszy artykuł przedstawia ideę opracowania kryteriów oceny stateczności na podstawie tzw. "scenariuszy". Opisano ogólne założenia oraz przedstawiono obliczenia dla wybranego scenariusza zakładającego przesunięcie się ładunku na pokładzie.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2004, 2 (74); 347-358
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Need of the Revision of Passenger Ships’ Stability Criterion on Account of Turning
Autorzy:
Szozda, Z.
Powiązania:
https://bibliotekanauki.pl/articles/116177.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Ship Stability
Passanger Ship
Turning of Ship
Passanger Ship's Stability
Stability Criteria
Passanger Ship's Stability Criterion
International Code on Intact Stability
Ship’s Heel
Opis:
The angle of heel on account of turning is one of the mandatory stability criteria for passenger ships. Formula used for calculations of this criterion contained in the International Code on Intact Stability [13] is criticized at present. Agendas of the Sub-committee on Ship Design and Construction (SDC) for the first (2014) and the second (2015) sessions contain the item on revision of this criterion and corresponding regulation. The paper presents some shortcomings of the criterion. Turning tests of a freely maneuvering model of a passenger ship have been executed aiming at gathering data for the future discussion and its facilitation. The paper presents results of the tests together with preliminary conclusions that confirm the need of the revision of the regulation and put forward concerns on application of such values as initial metacentric height (GMo) and righting lever curve (GZ(?)) calculated for a ship laying still for calculation of a ship’s heel caused by turn.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 3; 393-399
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of Thevenins equivalent model at the receiving node
Określanie modelu ekwiwalentu thevenina w węźle odbiorczym
Autorzy:
Brusiłowicz, B.
Szafran, J.
Powiązania:
https://bibliotekanauki.pl/articles/410567.pdf
Data publikacji:
2011
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
Thevenin 's equivalent
stability margin
local voltage stability
Opis:
This paper presents the properties of the equivalent Thevenin's model of a network as seen from a network receiving node. Such a simplified model can be applied in protective and preventive gear installed at the considered receiving node. Thevenin's circuit can be determined either from of the power system configuration diagram or by use of algorithm based on local current and voltage phas or measurements. Local measurements are used to calculate the derivative of apparent power against the voltage dS/dV. Paper describes the dS/dV algorithm accuracy tests according to the approximate angle of the series system impedance. An important problem of the Thevenin's model updating due to the changing configuration of power system is discussed in the paper. The advantages and disadvanges of both described methods are also presented.
Artykuł przedstawia właściwości modelu Thevenina. Uproszczony model reprezentujący aktualną konfigurację systemu może mieć zastosowanie w automatyce zabezpieczeniowej oraz prewencyjnej montowanej w punkcie odbiorczym. Model Thevenina może być tworzony przy użyciu dwóch metod: korzystając z informacji o pełnej konfiguracji systemu oraz z algorytmu wyliczającego parametry modelu na podstawie pomiarów lokalnych fazorów napięć i prądów. Korzystając z pomiarów lokalnych, wyliczana jest pochodna mocy pozornej po napięciu &S/&V. Przeprowadzono testy dokładności algorytmu dS/dV w zależności od założonego kąta impedancji systemowej. Ważnym problemem, jaki jest poruszony w artykule jest aktualizacja modelu zgodnie ze zmieniającą się konfiguracją systemu elektroenergetycznego. Zmiany mogą być wywoływane zarówno stanami normalnej pracy, jak i awariami występującymi w systemie. Przedstawiono wady i zalety stosowania obu metod.
Źródło:
Present Problems of Power System Control; 2011, 1; 5-13
2084-2201
Pojawia się w:
Present Problems of Power System Control
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 2376

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