Wyniki wyszukiwania dla: DESI

• Multi-objective antenna design by means of sequential domain patching

  Publikacja

  • S. Kozieł
  • A. Bekasiewicz

  - IEEE Antennas and Wireless Propagation Letters - Rok 2016

  A simple yet robust methodology for rapid multiobjective design optimization of antenna structures has been presented. The key component of our approach is sequential domain patching of the design space which is a stencil-based search that aims at creating a path that connects the extreme Pareto-optimal designs, obtained by means of single-objective optimization runs. The patching process yields the initial approximation of the...

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• Application of design-thinking models to improve the quality of tourism services

  Publikacja

  • G. Zieliński
  • M. Studzińska

  - Zarządzanie i Finanse - Rok 2015

  The paper presents basic aspects of improvement activities for the quality of tourism industry service through its specific determinants of quality. The authors suggested an the application of design-thinking concept in the development of the service itself and an attempt to undertake improvement activities.

• On the low-cost design of abbreviated multisection planar matching transformer

  Publikacja

  • P. Kurgan
  • A. Bekasiewicz
  • M. Kitliński

  - MICROWAVE AND OPTICAL TECHNOLOGY LETTERS - Rok 2015

  A numerically demanding wideband matching transformer composed of three nonuniform transmission lines (NUTLs) has been designed and optimized at a low computational cost. The computational feasibility of the design has been acquired through the exploitation of low-fidelity NUTL models in most steps of the design procedure and an implicit space mapping optimization engine, providing high accuracy results with only a handful of EM...

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• New approach to computer aided design of coupled resonator filters

  Publikacja

  • P. Kozakowski
  • M. Mrozowski

  - Journal of Telecommunications and Information Technology - Rok 2003

  W niniejszej pracy zastosowane zostały gradientowa metoda optymalizacji oraz nowa definicja funkcji celu do projektowania filtrów mikrofalowych. Definicja funkcji celu została oparta na badaniu położenia zer i biegunów funkcji przenoszenia optymazlizownanych układów.

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• Analog filter design system for field programmable analog array.

  Publikacja

  • M. Wójcikowski

  - Bulletin of the Polish Academy of Sciences-Technical Sciences - Rok 2003

  Obiektowy system do automatycznego projektowania filtrów kaskadowych i symetrycznych filtrów FLF z wykorzystaniem wzmacniaczy transkonuktancyjnych OTACi bloków bikwadratowych z optymalizacją zakresu dynamiki, zniekształceń i wrażliwości. System umożliwia realizację standardowych aproksymacji charakterystyk amplitudowych oraz dowolnie zdefiniowanych przez użytkownika.

• Hydrodynamic aspects of unconventional propulsor design for small fast ships.

  Publikacja

  • J. Szantyr

  - Rok 2004

  Artykuł przedstawia przegląd niekonwencjonalnych pędników dla małych, szybkich okrętów. Przegląd ten obejmuje pędniki strugowodne, śruby superkawitacyjne, śruby częściowo zanurzone oraz śruby kawitujące. Charakterystyczne cechy hydrodynamiczne tych pędników wymieniono i przedyskutowano, ze wskazaniem wad i zalet. Pokrótce przedstawiono dostępne metody projektowania i przedyskutowano ich oczekiwaną dokładność. Przegląd zilustrowano...

• Design of waveguide filters using multiple irises and folded elements.

  Publikacja

  • M. Mongiardo
  • L. Accatino
  • M. Dionigi
  • P. Kozakowski
  • A. Lamęcki
  • L. Marcaccioli
  • M. Mrozowski
  • R. Sorrentino
  • C. Tomassoni
  • V. R. Gatti

  - Rok 2004

  W pracy został zaprezentowany przegląd metod projektowania filtrów falowodowych w kontekście zarówno klasycznych metod syntezy jak i współczesnych algorytmów. W szczególności rozważonoanalizę filtrów z wieloaperturowymi przegrodami oraz filtrówzbudowanych w wygiętych odcinkach falowodów. Zaprezentowano przykłady w pełni wykorzystujące zalety wygiętych falowodów a także pokazano wydajne metody optymalizacji oparte na badaniu położeń...

• The roadway bridge over Vistula River in Plock - design and construction.

  Publikacja

  • N. Hajdin
  • B. Stipanić
  • J. Krawczyk
  • K. Wąchalski

  - Rok 2004

  The paper presents the design and construction works of the Roadway Bridge over Vistula River in Plock (Poland), designed by first two paper authors as being the winners of international competition for design oraganized by Polish association of the bridge engineers. Total length of the bridge is 1,200 m; 615 m is the length of main bridge part over the Vistula riverbed, and 585 m is the length of access bridge part over river...

• Mechatronic design for improve current performences of machines : Chapter 3

  Publikacja

  • T. Kucharski

  - Rok 2005

  Przedstawiono wybrane zagadnienia z zakresu projektowania mechatronicznego w zastosowaniu do maszyn służących do transpoetu wibracyjnego w procesie suszenia i do przecinarek ściernicowych. Opisano układy sterowania i optymalizację parametrów technologicznych.

• Impact of commutation unit design on hydraulic axial pump performance.

  Publikacja

  • L. Osiecki

  - Rok 2005

  Przedstawiono zależność pomiędzy konstrukcją mechanizmu rozrządu hydraulicznych pomp wielotłoczkowych osiowych a sprawnością i ciśnieniem pracy osiąganą przez te pompy. Zaprezentowano wyniki badań doświadczalnych.

• A design concept of fire protection system for an ecological floating dock

  Publikacja

  • C. Dymarski
  • D. Śledź

  - Rok 2005

  W artykule przedstawiono możliwe do wystąpienia na doku pływającym zagrożenie pożarowe oraz projekt koncepcyjny systemu zabezpieczenia przeciwpożarowego. Projekt ten obejmuje: istalację gaśniczą wodno-hydrantową i pianową do ochrony pokładu głównego oraz instalację CO2 do ochrony siłowni, rozdzielni elektrycznej i tunelu kablowego, a także instalację wykrywania i sygnalizacji pożaru.

• Analytical design of stable delta-domain generalized predictive control

  Publikacja

  • P. Suchomski
  • Z. Kowalczuk

  - OPTIMAL CONTROL APPLICATIONS & METHODS - Rok 2002

  Praca dotyczy analitycznej metody projektowania układów sterowania skalarnymi (SISO) obiektami czasu ciągłego według strategii uogólnionego sterowania predykcyjnego (GPC) w oparciu o dyskretnoczasowe modele takich obiektów. Założono wykorzystanie numeryczne odpornych modeli opartych o tak zwany operator delta. Przyjmując kwadratowy funkcjonał kosztów, w którym prognozowany przebieg przyszłego wyjścia sterowanego obiektu porównywany...

• On application of the Case-Based Reasoning methods in ship automation design

  Publikacja

  • M. Meler-Kapcia
  • S. Zieliński
  • Z. Kowalski

  - Polish Maritime Research - Rok 2003

  W artykule przedstawiono metodę wnioskowania na podstawie przypadków oraz dwa przykłady jej zastosowania w projektowaniu statków. Pierwszy przykład dotyczy systemu projektowania koncepcyjnego statku. Drugi przykład odnosi się do projektowania układów automatyki okrętowej. Omówiono szczegółowo problemy doboru funkcji podobieństwa w metodzie wnioskowania na podstawie przypadków.

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• Multimode, multiparametric surrogate models for fast design of waveguide components.

  Publikacja

  • A. Lamęcki
  • P. Kozakowski
  • M. Mrozowski

  - Rok 2003

  Przedstawiona została efektywna technika tworzenia wieloparametrycznych mo-deli zastępczych na podstawie wyników symulacji pełnofalowej przy wykorzy-staniu metody Cauchy`ego wielu zmiennych. Metoda pozwala na automatyczny wy-bór rzędu modelu i minimalizuje liczbę koniecznych analiz pełnofalowych. Te-chnika ta jest wykorzystana do tworzenia modeli uogólnionej macierzy rozpro-szenia.

• An application of simulation investigations in design procedures of shippower system automation

  Publikacja

  • R. Arendt

  - Rok 2003

  Przedstawiono wyniki prac dotyczące zastosowania badań symulacyjnych systemów energetycznych statków w środowisku programowym systemu ekspertowego. Wyniki badań symulacyjnych są źródłem głębokiej wiedzy dla systemu ekspertowego dotyczącej oceny spełnienia kryteriów towarzystw klasyfikacyjnych statków. Wybrane sesje symulacyjne podsystemu napędu głównego statku zostały przedstawione i omówione.

• Design and numerical testing of 5-box gfrp shell footbridge

  Publikacja

  • M. Klasztorny
  • J. Chróścielewski
  • P. Szurgott
  • R. Romanowski

  - Rok 2014

  The paper formulates new design conditions for composite footbridges, taking into account the material and structural specificity of these objects, i.e. the strength condition, the serviceability condition and the frequency condition. A GFRP composite footbridge labelled with CFB2 code has been designed, with the original superstructure in the form of an opened-closed 5-box girder. The foot and cycle track bridge is simply supported,...

• Variable Fractional Delay Filter Design Using a Symmetric Window

  Publikacja

  • M. Blok
  • M. Sac

  - CIRCUITS SYSTEMS AND SIGNAL PROCESSING - Rok 2014

  In this paper a numerically efficient method for designing a nearly optimal variable fractional delay (VFD) filter based on a simple and well-known window method is presented. In the proposed method a single window extracted from the optimal filter with fixed fractional delay (FD) is divided into even and odd part. Subsequently, the odd part is discarded and symmetric even part of the extracted window is used to design a family...

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• THERMAL ANALYSIS AND DESIGN OF HYBRID MICROCHANNEL-MICROJET TEST PROBE

  Publikacja

  • T. Muszyński
  • R. Andrzejczyk

  - Dokonania Młodych Naukowców - Rok 2014

  The paper presents the numerical investigation of a microjet- microchannel cooling module. In which microjets of water are impinging into the microchannels and forming a liquid film on the impingement surface. Applied technology takes benefits from two very attractive heat removal techniques. When lminar jets are impinging on the surface have a very high kinetic energy at the stagnation point, also in microchannels boundary layer...

• THERMAL ANALYSIS AND DESIGN OF HYBRID MICROCHANNEL -MICROJET TEST PROBE

  Publikacja

  • T. Muszyński
  • R. Andrzejczyk

  - Rok 2014

  Accurate control of cooling parameters is required in ever wider range of technical applications. It is known that reducing the flow hydraulic diameter to an increase in the economy of cooling and improves its quality (Mikielewicz and Muszyński 2009). Present study describes research results related to the design and construction of the test stand for hybrid microjet- microchannel cooling modules study, which may be applied in...

• A Concept and Design Optimization of Compact Planar UWB Monopole Antenna

  Publikacja

  • A. Bekasiewicz
  • S. Kozieł

  - Rok 2014

  A novel structure concept of a compact UWB monopole antenna is introduced together with a low-cost design optimization procedure. Reduced footprint is achieved by introduction of a protruded ground plane for current path increase and a matching transformer to ensure wideband impedance matching. All geometrical parameters of the structure are optimized simultaneously by means of surrogate based optimization involving variable-fidelity...

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• AN INTELLIGENT SYSTEM TO SUPPORT THE DESIGN PROCESS OF HYBRID PHOTOVOLTAIC INSTALLATIONS

  Publikacja

  • W. Grzesiak
  • T. Maj
  • P. Maćków
  • E. Klugmann-Radziemska
  • S. Zawora
  • P. Grzesiak

  - Rok 2014

  The paper presents the final version of intelligent system to support the design process of hybrid photovoltaic systems supported by fuel cells and / or thermoelectric generators developed and constructed at the Institute of Electron Technology, as well as to conduct experiments and research. A block diagram of the system and the selection of its components is described and discussed. The paper considers the availability of the...

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• Adapting the pinch point analysis to improve the ORC design process

  Publikacja

  • M. Ryms
  • T. Pyś
  • E. Klugmann-Radziemska

  - INTERNATIONAL JOURNAL OF ENERGY RESEARCH - Rok 2014

  Pinch point analysis can be adapted so as to assist in the early stages of designing the ORC systems. Typically used in determining the working parameters of heat exchangers, it can be employed to improve the heat fitting between the source of heat and the working fluids of the ORC system. To attain the parametric match, an algorithm was built enabling quick estimation of the possible heat reception by the specific working fluid....

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• FIR Filter Design Using Distributed Maximal Flatness Method

  Publikacja

  • M. Blok

  - International Journal of Electronics and Telecommunications - Rok 2013

  In the paper a novel method for filter design based on the distributed maximal flatness method is presented. The proposed approach is based on the method used to design the most common FIR fractional delay filter - the maximally flat filter. The MF filter demonstrates excellent performance but only in a relatively narrow frequency range around zero frequency but its magnitude response is no greater than one. This ,,passiveness”...

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• Practical aspects of design and operation of amphibious craft for rescue purposes

  Publikacja

  • M. Gerigk
  • T. Abramowicz-Gerigk
  • Z. Burciu

  - Mechines Technologies Materials - Rok 2013

  The paper presents the selected problems of design and operation of amphibious craft for rescue purposes. The result of research on the amphibious rescue units allowed formulating the general conclusions with respect to the proper selection of the main design parameters, program of model tests and full scale trials for the amphibious craft. The most important design problems related to the water characteristics are presents and...

• Specification-Oriented Automatic Design of Topologically Agnostic Antenna Structure

  Publikacja

  • A. Bekasiewicz
  • M. Dzwonkowski
  • T. Dhaene
  • I. Couckuyt

  - Rok 2024

  Design of antennas for modern applications is a challenging task that combines cognition-driven development of topology intertwined with tuning of its parameters using rigorous numerical optimization. However, the process can be streamlined by neglecting the engineering insight in favor of automatic de-termination of structure geometry. In this work, a specification-oriented design of topologically agnostic antenna is considered....

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• Hydraulic valve design methodology for hydro turbine control system

  Publikacja

  • M. Kosek
  • P. Śliwiński
  • D. Downar

  - FLOW MEASUREMENT AND INSTRUMENTATION - Rok 2024

  The control of the turbine and its equipment in a hydroelectric power plant requires the HPU (hydraulic power unit) to deliver large volumes of working fluid in a short time at specific optimum control parameters. The use of typical proportional flow control valves created by manufacturers of hydraulic components in low-pressure control systems is disadvantageous due to high pressure losses in the control chambers. This paper presents...

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• Electromagnetic Simulation with 3D FEM for Design Automation in 5G Era

  Publikacja

  • Ł. Balewski
  • M. Baranowski
  • M. Jasiński
  • A. Lamęcki
  • M. Mrozowski

  - ZTE COMMUNICATIONS - Rok 2020

  Electromagnetic simulation and electronic design automation (EDA) play an important role in the design of 5G antennas and radio chips. The simulation challenges include electromagnetic effects and long simulation time and this paper focuses on simulation software based on finite-element method (FEM). The state-of-the-art EDA software using novel computational techniques based on FEM can not only accelerate numerical analysis, but...

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• OPTIMISING RIG DESIGN FOR SAILING YACHTS WITH EVOLUTIONARY MULTIOBJECTIVE ALGORITHM

  Publikacja

  • M. Pawłusik
  • R. Szłapczyński
  • A. Karczewski

  - Polish Maritime Research - Rok 2020

  The paper presents a framework for optimising a sailing yacht rig using Multi-objective Evolutionary Algorithms and for filtering obtained solutions by means of a Multi-criteria Decision Making method. A Bermuda sloop with discontinuous rig is taken under consideration as a model rig configuration. It has been decomposed into its elements and described by a set of control parameters to form a responsive model which can be used...

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• A framework for risk matrix design: A case of MASS navigation risk

  Publikacja

  • C. Fan
  • J. Montewka
  • D. Zhang
  • Z. Han

  - ACCIDENT ANALYSIS AND PREVENTION - Rok 2024

  Risk matrix, a tool for visualizing risk assessment results, is essential to facilitate the risk communication and risk management in risk-based decision-making processes related to new and unexplored socio-technical systems. The use of an appropriate risk matrix is discussed in the literature, but it is overlooked for emerging technologies such as Maritime Autonomous Surface Ships (MASS). In this study, a comprehensive framework...

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• Human Resource Management Digitalisation in Multidisciplinary Ship Design Companies

  Publikacja

  • P. Bilon
  • W. Litwin

  - Polish Maritime Research - Rok 2023

  The digitalisation in the ship design sector is currently applied to the design process itself and is well defined, partially standardised and practically implemented by both independent design companies and the design departments of shipyards. The situation is similar in other sectors of engineering. However, the requirements for the digitalisation of other processes in design and engineering companies have not previously been...

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• DESIGN ERRORS CAUSE AN EMERGENCY OF THE REINFORCED CONCRETE TANK FOR COKE

  Publikacja

  • T. Majewski
  • M. Niedostatkiewicz

  - Rok 2024

  The quality of the developed design documentation and the maintenance of the technological regime during construction works have a decisive impact on the subsequent safety of the structure, as well as the safety of use of the building. The paper describes the defects and damages of an open, rectangular reinforced concrete tank for hot process water, which failed during a short period of operation. The article also presents the...

• DESIGN AND EXECUTION ERRORS AS A CAUSE OF DAMAGE TO ANTI- ELECTROSTATIC FLOORING

  Publikacja

  • S. Świątek-Żołyńska
  • M. Niedostatkiewicz
  • W. Ryżyński

  - Rok 2024

  Apart from technological lines, industrial floors are a key element in the scope of maintaining the continuity of work of both production plants and logistics centers. The constantly developing industry of industrial flooring includes both classic design and technological flooring solutions, as well as specialist solutions used in facilities where technological processes or storage require system protection against static electricity....

• Conceptual design of shore station for an innovative waste collecting vessel

  Publikacja

  • K. Niklas
  • H. Pruszko
  • M. Reichel
  • J. Jaworska
  • E. Marcinkiewicz

  - Rok 2024

  Marine environment protection legislation in the EU requires ships to return waste they generate on voyages to waste-reception facilities in ports. In many harbors there is a need to expand the port infrastructure to enable the operation of Waste Collecting Vessels (WCVs). In addition, these vessels can perform new functions of cleaning port basins and adjacent waterways. A novelty in the presented research on the conceptual design...

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• Report of Eurocode 7 application for pile foundation design in Poland

  Publikacja

  • K. Gwizdała
  • A. Krasiński

  - Rok 2016

  The EC7 rules of geotechnical design are in use in Poland for several years, even though there is no National annex. With regard to pile foundations, there are valid EC7 recommendations concerning design approaches, load partial coefficients, correlation coefficients and capacity partial coefficients. Polish designers can be quite flexible when it comes to choose a method for static, bearing capacity and settlement calculations....

• Computationally Efficient Design Optimization of Compact Microwave and Antenna Structures

  Publikacja

  • S. Koziel
  • P. Kurgan
  • A. Bekasiewicz

  - Rok 2016

  Miniaturization is one of the important concerns of contemporary wireless communication systems, especially regarding their passive microwave components, such as filters, couplers, power dividers, etc., as well as antennas. It is also very challenging, because adequate performance evaluation of such components requires full-wave electromagnetic (EM) simulation, which is computationally expensive. Although high-fidelity EM analysis...

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• Spinning Fluids Reactor: A new design of a gas – liquid contactor

  Publikacja

  • R. Aranowski
  • P. Wojewódka
  • A. Zielińska-Jurek
  • R. Bokotko
  • C. Jungnickel

  - CHEMICAL ENGINEERING AND PROCESSING - Rok 2017

  Current trends in chemical reactor design are based on adapting these to the requirements of a particular chemical process. Processes involving reactions between the gas and liquid phase in particular require precise adjustment of all parameters. The common denominator for most modern design solutions is enhancement of the mass transfer area and the overall volumetric mass transfer coefficient. Gas – liquid contactors evolved from...

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• Arch footbridge over Warta river in Wronki - design and construction

  Publikacja

  • K. Żółtowski
  • M. Binczyk

  - Rok 2016

  The paper presents the concept of dynamic redesign of lively footbridge. The goal was to reduce probable dynamic excitation and change detailed structural concept. After the complex study the new design was created. In effect completely new static and dynamic properties were reached. Static and dynamic assumptions are explainde. General information, photos and drawings are presented. The final price of the project amounted to 1.25...

• An Automatic Self-Tuning Control System Design for an Inverted Pendulum

  Publikacja

  • M. Waszak
  • R. Łangowski

  - IEEE Access - Rok 2020

  A control problem of an inverted pendulum in the presence of parametric uncertainty has been investigated in this paper. In particular, synthesis and implementation of an automatic self-tuning regulator for a real inverted pendulum have been given. The main cores of the control system are a swing-up control method and a stabilisation regulator. The first one is based on the energy of an inverted pendulum, whereas the second one...

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• Key success factors for small design offices in the bidding process

  Publikacja

  • M. Apollo
  • D. Burkacki

  - Architectural Engineering and Design Management - Rok 2024

  Competition in the design office market is high, therefore it is important to be aware of the conditions determining the competitive advantage, thus increasing the bidding effectiveness. For this reason, the aim of the article is to identify key success factors (KSF) increasing successful bidding of a small design office. The factors were identified and then analysed based on a literature review, expert interviews and using Group...

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• A comprehensive approach to SBR modelling for monitoring and control system design

  Publikacja

  • T. Ujazdowski
  • T. Zubowicz
  • R. Piotrowski

  - Journal of Water Process Engineering - Rok 2023

  The aim of this research is to provide a comprehensive description of the Sequencing Batch Reactor (SBR) modelling for monitoring, control, and plant operational optimisation validation. The paper provides a detailed modelling of the SBR, its components and constituent processes. For this purpose, the mass balance principle and continuity equations were provided with a reactive term implemented using Activated Sludge Model (ASM)....

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• Design framework and simulation investigation of cellular parts manufacturing applications

  Publikacja

  • M. Siemiątkowski

  - Rok 2006

  Przedstawiono koncepcję projektowania przebiegów grupowego wytwarzania asortymentu przedmiotów w systemach typu przepływowego, z wykorzystaniem algorytmu analizy podobieństwa ciągów znakowych, reprezentujących marszruty procesów, i jego oceny wg kryterium odległości Levenshteina, zgodnie z paradygmatem oszczędnej produkcji. Efektywność proponowanej metodyki weryfikowano symulacyjnie wg określonych scenariuszy, opisujących wariantowe...

• CoDesign-International Journal of CoCreation in Design and the Arts

  Czasopisma

  ISSN: 1571-0882 , eISSN: 1745-3755

• International Journal of Online Pedagogy and Course Design

  Czasopisma

  ISSN: 2155-6873 , eISSN: 2155-6881

• International Journal of Information System Modeling and Design

  Czasopisma

  ISSN: 1947-8186 , eISSN: 1947-8194

• International Journal of Interactive Design and Manufacturing - IJIDeM

  Czasopisma

  ISSN: 1955-2513 , eISSN: 1955-2505

• International Journal of Computational Biology and Drug Design

  Czasopisma

  ISSN: 1756-0756

• Turkish Online Journal of Design Art and Communication

  Czasopisma

  ISSN: 2146-5193

• International Journal of Fashion Design, Technology and Education

  Czasopisma

  ISSN: 1754-3266

• IPSJ Transactions on System LSI Design Methodology

  Czasopisma

  ISSN: 1882-6687

• International Journal of Design Management and Professional Practice

  Czasopisma

  ISSN: 2325-162X