Wyniki wyszukiwania - BazTech

1

Performance of bias corrected monthly CMIP6 climate projections with diferent reference period data in Turkey

Oruc Sertac

Acta Geophysica

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2022

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Vol. 70, no 2

777--789

EN

Decisions that are based on the future climate data, and its consequences are significantly important for many sectors such as water, agriculture, built environment, however, the performance of model outputs have direct influence on the accuracy of these decisions. This study has focused on the performance of three bias correction methods, Delta, Quantile Mapping (QM) and Empirical Quantile Mapping (EQM) with two reference data sets (ERA and station-based observations) of precipitation for 5 single CMIP6 GCM models (ACCESS-CM2, CNRM-CM6-1-HR, GFDL-ESM4, MIROC6, MRI-ESM2-0) and ensemble mean approach over Turkey. Performance of model-bias correction method-reference data set combinations was assessed on monthly basis for every single station and regionally. It was shown that performance of GCM models mostly affected by the region and the reference data set. Bias correction methods were not detected as effective as the reference data set over the performance. Moreover, Delta method outperformed among the other bias correction techniques for the computation that used observation as reference data while the difference between bias correction methods was not significant for the ERA based computations. Besides ensemble approach, MIROC6 and MRI-ESM2-0 models were selected as the best performing models over the region. In addition, selection of the reference data sets also found to be a dominant factor for the prediction accuracy, 65% of the consistent performance at the stations achieved by the ERA reference used bias correction approaches.

2

Polish Institute of Aviation in the European Research Area

Jeż M.

Prace Instytutu Lotnictwa

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2010

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Nr 1 (203)

1-57

EN

This booklet intends to highlight the issues of better involvement of European Union New Member States, with Poland as an example, into EU reality of aerospace sector progress. Authors try to justify the necessity of paradigm shift in the domain of European Research Area concept realization. The contents are organized in four parts dedicated consecutively to: European Communities, European aeronautics stakeholders, EREA Association conception and development and finally the Polish Institute of Aviation activity in European Research Area.

PL

To opracowanie rozświetla zagadnienia lepszego włączenia nowych członków Unii Euro - pejskiej, na przykładzie Polski, do bieżących procesów i postępu w europejskim sektorze lotniczym. Autorzy starali się uzasadnić konieczność zmian metodycznych w realizacji koncepcji Europejskiej Przestrzeni Badawczej (ERA). Celem jest ukazanie europejskim partnerom naszej orientacji i dążeń oraz pomoc polskim inżynierom w przełamaniu zwątpień i podjęciu zdeterminowanej aktywności dla odzyskania wkładu polskiego podatnika do funduszy Departamentu Badań i Innowacji Komisji Europejskiej. Zawartość tej publikacji została zorganizowana w czterech częściach poświęconych kolejno: wspólnotom europejskim, interesariuszom lotnictwa europejskiego, Stowarzyszeniu Lotniczych Instytutów Europejskich (EREA) oraz wyzwaniom Instytutu Lotnictwa wobec ERA.

3

Development trends and risks of railroad crossings

Janota A., Spalek J., Sebenova J.

Archives of Transport System Telematics

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2009

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Vol. 2, iss. 4

37-40

EN

The application of new technologies on railroad crossings goes along with many questions, which answering should forego the implementation itself. The paper presents basic problems of crossings and the classification of generic railroad crossings according to the European Railway Agency. Therefore the goal of this paper is to present the current state and prospects in the field of railroad crossings in the light of the present-day situation, whereby the major attention is aimed at two fields – new technologies and overview of risk analysis methods applied worldwide on railroad crossings.

4

Zastosowanie algorytmu ERA do przeprowadzenia autonomicznej analizy modalnej

Kurowski P., Lisowski W., Uhl T.

Górnictwo Odkrywkowe

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2003

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R. 45, nr 2-3

78-81

PL

Eksperymentalna analiza modalna jest często stosowana techniką badania zachowań dynamicznych szerokiej klasy obiektów mechanicznych. Dużym problemem szczególnie w trakcie analizy złożonych konstrukcji, jest obiektywizacja uzyskiwanych wyników analiz oraz autonomizacja procesu. W artykule przedstawiono wykorzystanie znanego z klasycznej analizy modalnej algorytmu ERA (ang. Eigensystem Realization Algorithm), który w połączeniu z techniką analizy diagramów stabilizacyjnych zastosowano do automatyzacji estymacji wartości parametrów modelu modalnego. W artykule przedstawiono także przykładową implementację opisywanych narzędzi w pakiecie Matlab oraz analizę danych zebranych w czasie eksperymentu modalnego na obiekcie rzeczywistym.

EN

In-operation modal analysis is a widely used tool that allows for identification of structure dynamic parameters of various objects. The progress in technology and equipment functionality, modal research methodology, efficiency of modal parameters estimation algorithms as well as in methods and means of computer aided research planning, estimation and assessment of modal model quality extended the range of modal analysis application. On the other hand, it contributed to the considerable increase in a size of a set of modal test results, which are frequently incomplete and partially incoherent. As a result of application of advanced methods and technical means to modal analysis, the influence of subjective decision made by engineers during the identification process on the result objectivity has increased. Inevitable, while making use of accessible methods and means, necessity of making subjective decisions during parameter estimation stands for the main problem in automation of parameter estimation procedure but at least at some stages of estimation might be automated, which leads to the formulation of so called autonomous estimation procedure. The usage of an autonomous procedure results from the necessity of taking into account features of various objects, which determinates the necessity of making decisions by engineer at least in the range of result quality assessment, estimation procedure planning as well as in estimation result interpretation and assessment of their reliability.

5

Szósty Program Ramowy Unii Europejskiej

Kołacz I.

Czysta Energia

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2003

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Nr 3

16-17

6

Technologie społeczeństwa informacyjnego w 6. Programie Ramowym Unii Europejskiej. Cz. 3

Bartczak K.

Przegląd Komunikacyjny

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2001

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R. 40, nr 3

13-15