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2010
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tom Vol. 1, no. 1
67--85
EN
The design of Software Defined Radio (SDR) equipments (terminals, base stations, etc.) is still very challenging. We propose here a design methodology for ultra-fast prototyping on heterogeneous platforms made of GPPs (General Purpose Processors), DSPs (Digital Signal Processors) and FPGAs (Field Programmable Gate Array). Lying on a component-based approach, the methodology mainly aims at automating as much as possible the design from an algorithmic validation to a multi-processing heterogeneous implementation. The proposed methodology is based on the SynDEx CAD design approach, which was originally dedicated to multi-GPPs networks. We show how this was changed so that it is made appropriate with an embedded context of DSP. The implication of FPGAs is then addressed and integrated in the design approach with very little restrictions. Apart from a manual HW/SW partitioning, all other operations may be kept automatic in a heterogeneous processing context. The targeted granularity of the components, which are to be assembled in the design flow, is roughly the same size asthat of a FFT, a filter or a Viterbi decoder for instance. The reuse of third party or predeveloped IPs is a basis for this design approach. Thanks to the proposed design methodology it is possible to port “ultra” fast a radio application over several platforms. In addition, the proposed design methodology is not restricted to SDR equipment design, and can be useful for any real-time embedded heterogeneous design in a prototyping context.
EN
Dynamic development in practically all fields of science and engineering has not passed over shipbuilding . In last years, engineers got to their use computer software which makes it possible to perform strength and hydrodynamic calculations as well as to visualize design projects in 3 D space [1-4]. At their disposal they have full spectrum of modern solutions associated with the use of advanced materials and technologies [5-7]. More and more attention is also paid to impact onto the natural environment [8,9]. Every new object must influence the environment as low as possible, beginning from building phase through its service life up to final utilization – such approach is called „green-shipping”. However , not only practical reasons are important . Clients , i.e. ship owners and passengers of ships paid more and more attention to image of floating units. During decision taking on that from whom a transport service has to be ordered , the most modern ships of an attractive image matching with place and time, are often taken into consideration. Such situation has become a basis for an idea of working out a concept of a new ferryboat for National Maritime Museum. As the ferry has to navigate in „the heart of the town”, then , apart from strictly marine and engineering aspects , an important factor of its designing is its expected image - a set of significant meanings and emotions written in architecture language. The new ferryboat , like its historical predecessors , will never leave urban water routes.
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Content available The act of design : beyond the digital?
75%
EN
The aim of this paper is to discuss a very initial stage of architectural design. To achieve that, the way architects work at the early phase of design task is taken into consideration. For the purpose of analysing the process, two groups of designers are distinguished, viz.: novice and familiar with digital media. A few experiments are described in order to reveal a process of creative thinking and, what is more, to point out a hybrid analogue-digital environment as a preferred setting to study and deal with a design problem. However, it is difficult to assign the act of creation itself to certain rules and methodologies since it seems to exist somewhere beyond – elusive and unpredictable.
4
Content available remote State of the art of the passive pedestrian safety simulation
75%
EN
Purpose: In this paper we want to describe the work of Design Method's research group of Dept. of Mechanical Engineering of Salerno University, in the research sector concerning passive pedestrian safety for vehicles, taking into account models FEM used and developed for vehicle design and optimization. Design/methodology/approach: Our carried out models show a very good degree of Numeric/Experimental correlation, and also we've numerically certified our virtual impactors, designed following EEVC-WG17 requirements. These impactors have been tested at higher speed and we have had a good correlation, even if some difficulties there was, regarding the critical behaviour of the foam that covers some impactors, solved following different model-design optimization methods. Findings: Best results obtained and described in this paper are relating to impactors modelling and certification, and Experimental/Numerical correlation of crash tests. Research limitations/implications: The reaching of the elevated pedestrian safety performance, compatibly with the others, sometimes conflicting, performances, is one of the main targets to reach for the automotive industry by now and, above all, for the future. Practical implications: Statistic studies carried out during last decades have underlined as pedestrians-with a prevalence of children and elderly-are a category with great risk of die in car accidents, especially during the collision with the front part of motor vehicles, particularly in the urban areas: according to recent investigations of a research committee of the European Community (CEC 2001), the risk of death in case of accident is, for pedestrians and cyclists, equal respectively to 9 and 8 times vehicle occupants one. Originality/value: In such a context, this paper is intended to study the pedestrian injury at the impact with vehicles and methods of designing and constructing vehicles in order to reduce the damage itself.
5
Content available remote system informacji zarządczej - efektywna integracja i analiza danych
63%
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tom Vol. 10, nr 1
37-48
EN
Today's fast-paced, competitive marketplace means increasing pressure to raise profits, do more with less and operates more efficiently. Achieving these goals requires faster and improved decision-making ability across organizations. Unfortunately in many situations, departments continue to operate in information silos. Existing enterprise systems often are not linked and software packages are not integrated. Decision makers have difficulty getting the accurate information they need and IT professionals spend more time responding to ad-hoc report requests than focusing on strategic initiatives. Business intelligence integrates data from across your enterprise, and provides self-service reporting and analysis at everyone's "fingertips". Decision makers spend less time looking for answers and more time driving strategic decisions. BI decision-support initiatives are also very expensive endeavors. Disparate business data must be extracted and merged from online transaction processing (OLTP) systems, from batch systems, and from externally syndicated data sources. BI decision-support initiatives also call for new technology to be considered, additional tasks to be performed, roles and responsibilities to be shifted, and analysis and decision-support applications to be delivered quickly while maintaining acceptable quality. A staggering 60 percent of BI projects end in abandonment or failure because of inadequate planning, missed tasks, missed deadlines, poor project management, undelivered business requirements, or poor quality deliverables. An effective methodology of introducing the BI decision-support initiatives can lower this high investment risk. BI projects can be organized according to the six stages and 16 development steps within these stages as outlined in this article.
EN
Research was undertaken in order to examine the ways colour has been coordinated in urban design in Poland and Slovakia – especially reasons and conditions under which colour planning started and thereafter operated. The methodology employed included an analysis of archival materials, interviews with designers and public officials as well as field studies. Five colour plans were analysed from the following points of view: the circumstances of their initiation, the methodology and process of their elaboration, the method and degree of implementation and their ‘life’ over the following years. The aim of this study is to compare and analyse the impact of individual colour plans in order to get an input for strengthening the professional and scientific approach to colour planning through lessons learnt from these examples.
PL
Artykuł przedstawia wyniki analizy sposobów koordynowania koloru w architekturze i urbanistyce w Polsce i na Słowacji, w tym badania powodów i warunków, w jakich podjęto się planowania koloru w architekturze w tych krajach. Metodologia badań objęła szczegółowe zapoznanie się z materiałami źródłowymi i wywiadami z projektantami i urzędnikami oraz badania terenowe. Pięć przykładów planowania koloru przeanalizowano pod kątem okoliczności ich powstania, metod projektowania, sposobu i stopnia zastosowania. Porównanie i analiza wpływu poszczególnych planów kolorystycznych pomogły wyciągnąć wnioski, które powinny przyczynić się do rozwoju planowania i koordynowania koloru w przestrzeni publicznej.
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nr 1
EN
The article is arguing that town planning requires a new restructure of design methodologies. It is stating that the complex aspects of planning require division of the whole process and should concentrate not only on the physical development phase but on all the complex growth procedures and tendencies. It should start from visionary socio-economic ideas and restrictions which would lead to futuristic interpretations of human needs and environmental aspects. Because of the complex aspects, the approach should be divided into three tears. The complexity of urban procedures should be robust in the upper tears but flexible in detailed interpretations. This only will provide the opportunity to respond adequately to the changing circumstances in urban development tendencies. The attached maps and graphs provide clear indication of the required activities, topics and procedures for a modern approach to urban planning.
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tom T. 49
283--290
PL
Architektura zmienia środowisko życia. Proces ten generuje trwałe, oddalone w czasie skutki i wpływa na zagrożenia rozwoju. W artykule przedstawiono analizę wpływu metodyki modelowej na zdolność przewidywania konsekwencji związanych z projektami i realizacjami architektonicznymi. Uporządkowano kategorie zagrożeń i strategie symulacji modelowych. Na tle doświadczeń historycznych zarysowano znaczenie przełomu cyfrowego w modelowaniu oraz scharakteryzowano szanse, jakie ten przełom tworzy.
EN
Architecture changes the environment. This process generates permanent, long-term effects and limits future development. The paper presents the impact of model methodology on the ability to predict the consequences of architectural designs and realizations. The categories of threats and model simulation strategies were ordered. The significance of the digital breakthrough in modeling is outlined in historical perspective and opportunities the paradigm shift creates are characterized.
EN
This paper presents an originally-developed system for design and optimization of AC-DC converters dedicated in particular to operation in distributed generation systems. The proposed procedure is based on a multi-objective discrete optimization and expert knowledge of electrical engineering, especially power electronics. The required accuracy of calculations is obtained by using the database with real components, while the parameters applied in calculations are based on parameters provided by the manufacturer. The paper presents the foundations and basic system properties, the design and optimization process, and selected optimization results, obtained with a fully functional prototype of the design and optimization system (DaOS).
PL
Architektura i budownictwo długo pozostawały poza obszarem ścisłej, naukowej analizy. Teoria dyscypliny rozwijała się przede wszystkim w obszarze historii oraz krytyki. Metodykę projektowania kształtowano na bazie praktycznych doświadczeń: obserwacji, śledzenia procesów użytkowych, sukcesów konstrukcyjnych i katastrof. Ewolucja technik architektonicznych wiąże się ściśle z rozwojem konstruowanych modeli. Dzięki nim sztuka kształtowania przestrzeni zyskała szansę prowadzenia badań empirycznych. Początkowo modele odzwierciedlały wąski wycinek rzeczywistości, głównie jej formę geometryczną. Wraz z rozwojem nauk przyrodniczych stawały się w coraz większym stopniu reprezentatywne. W artykule przedstawiono główne etapy rozwoju modeli architektoniczno-budowlanych. Na tym tle zarysowano zmiany w metodyce prowadzące ku coraz ściślejszym formom rozumowania. Dokładnie przeanalizowano znaczenie cyfryzacji warsztatu dla poprawy jakości modeli. Ten ostatni etap ewolucji zinterpretowano w świetle funkcji cyfrowego medium, nowego elastycznego nośnika informacji o budynku.
EN
Architecture and civil engineering have long remained outside the scope of strict, scientific analysis. The theory of discipline developed primarily in the area of history and criticism. The design methodology was established on the base of practical experience: observation, tracking processes of use, construction successes and disasters. The evolution of architectural techniques is closely related to the development of constructed models. Thanks to them, the art of shaping space gained a chance to conduct empirical research. Initially, models reflected a narrow scope of reality, mainly its geometric form. With the development of natural sciences, models became increasingly representative. The paper presents the timeline of development of architectural and engineering models. On that ground, changes in methodology have been outlined, leading to strict forms of reasoning. The significance of workshop digitization for improving the quality of models was thoroughly analyzed. This last stage of evolution has been interpreted considering the function of the digital medium, a new flexible form of information about the building.
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tom Vol. 7, nr 4
123--132
EN
The paper describes a new methodology that allows to design scalable complex control and data acquisition systems taking into consideration the additional, non-functional requirements of High-Energy Physics (HEP). Electronic systems applied in HEP often operate in difficult conditions. Access to such devices is difficult or even impossible. The HEP systems require high availability, serviceability and upgradeability. The operating conditions of these systems are even more difficult than for telecommunication devices. Therefore, a different methodology should be applied than for classical telecommunication systems, when designing electronics used in high-energy physics applications. Electronic systems also need a suitable hardware platform that not only assures high availability, simplifies maintenance and servicing but also allows to use mixed analogue-digital signals. The author made an attempt to develop a new methodology suitable for designing of complex data acquisition and control systems of HEP. The Low Level RF (LLRF) system of European Free Electron Laser (EXFEL) and Image Acquisition System (IAS) prototype developed for International Thermonuclear Experimental Reactor (ITER) tokamak are presented as examples of complex electronic systems that were designed according to the proposed methodology.
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