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No full textPoznańThe paper presents a specific technique to generate the Trefftz functions for the two-dimensional wave equation. The obtained functions are used to determine approximate solutions of some tested problems. The accuracy of the method is discussed
No full textPoznańOn the basis of the mathematical model proposed before, the phase and stress state of the shape memory rod during torsion and following heating has been determined. Non-uniform distribution of residual stresses induced by a change of the phase structure under loading decreases after heating due to material returning to the initial phase state
EuropeanaLocal@PL
Get PDFPrzedstawienie kierunków działań polskiego zespołu EuropeanaLocal, omówienie planowanego sposobu integracji polskich zasobów cyfrowych z zasobami europejskimi
No full textPoznańThe notions of ubiquitous computing and networking, and the increasing availability of compact, low power sensing technologies naturally lead to the idea that we can expect to see large numbers of sensors embedded in the fabric of our everyday lives and that these could form a “Real World Web” of real-time data sources about our world. Implications for e-Research include sharing of real-time data from scientific instruments and aggregation of many types of information to answer complex questions as they arise. The World Wide Web was made possible through a combination of the increasing availability of the Internet, simple network protocols, and open content and delivery standards. The Real World Web can only grow and become self-sustaining if we pay attention to these same core design values of simplicity and openness. Recent developments in cloud computing and in Web 2.0 technologies and design stances provide enablers from which to build the Real World Web, but in addition, require a shift in thinking away from a classical Web services and layered standards model. This paper explores these issues and the role of the Real World Web as a paradigm for sharing instruments, sensors and other real-time data sources in e-Research collaborations
No full textPoznańWe present the results of the numerical experiments in favor of the Baez-Duarte criterion for the Riemann Hypothesis. We give formulae allowing calculation of numerical values of the numbers ck appearing in this criterion for arbitrary large k. We present plots of ck for k E (1, 10 9)
No full textPoznańthe common Instrument Middleware Architecture (CIMA) has been adopted and is being further developed as part of a project that includes the use of virtual instruments in a Web browser driven system for remote access to scientific instruments. Enhancements include distinct separation of concern for the modular components that make up the system, and a flexible message parcel schema
Aktualny stan infrastruktury bibliotek cyfrowych w Polsce
Get PDFPrzedstawienie aktualnego stanu infrastruktury rozproszonych bibliotek cyfrowych w Polsce, omówienie roli i zakresu działania Federacji Bibliotek Cyfrowyc