Search results for: computer-aided design

• Design centering of compact microwave components using response features and trust regions

  Publication

  • A. Pietrenko-Dąbrowska
  • S. Kozieł

  - ENERGIES - Year 2021

  Fabrication tolerances, as well as uncertainties of other kinds, e.g., concerning material parameters or operating conditions, are detrimental to the performance of microwave circuits. Mitigating their impact requires accounting for possible parameter deviations already at the design stage. This involves optimization of appropriately defined statistical figures of merit such as yield. Alt-hough important, robust (or tolerance-aware)...

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• Fuzzy logic-supported building design for low-energy consumption in urban environments

  Publication

  • M. Arun
  • C. Efremov
  • V. B. Nguyen
  • D. Barik
  • P. Sharma
  • B. J. Bora
  • J. Kowalski
  • H. C. Le
  • T. H. Truong
  • D. N. Cao

  - Case Studies in Thermal Engineering - Year 2024

  Climate, building materials, occupancy patterns, and HVAC (heating, ventilation, and air conditioning) systems all interact in complex ways, making it difficult to design low-energy buildings. Thus, innovative architectural and engineering design strategies are required to meet the worldwide need to decrease building energy usage. To improve the calculation of energy consumption of buildings, this work introduces the FCR-BCS (fuzzy...

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• RNS/TCS CONVERTER DESIGN USING HIGH-LEVEL SYNTHESIS IN FPGA

  Publication

  • R. Smyk
  • M. Czyżak

  - Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej - Year 2017

  An experimental high-level synthesis (HLS) of the residue number system (RNS) to two’s-complement system (TCS) converter in the Vivado Xilinx FPGA environment is shown. The assumed approach makes use of the Chinese Remainder Theorem I (CRT I). The HLS simplifies and accelerates the design and implementation process, moreover the HLS synthesized architecture requires less hardware by about 20% but the operational frequency is smaller...

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• The Use of the Language of Mathematics as an Inspiration for Contemporary Architectural Design

  Publication

  • A. Czech
  • J. Borucka

  - Procedia Engineering - Year 2016

  The purpose of the article is to present the evolution of the use of mathematical language as an inspiration for creating spatial, three-dimensional forms in art and architecture. The article focuses on the possibilities for art and architectural design ideas gained by contemporary mathematics, algorithms and computational parametric approach. The analysis of various examples represents the relationships between the composition...

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• Miniaturization-Oriented Design of Spline-Parameterized UWB Antenna for In-Door Positioning Applications

  Publication

  • A. Bekasiewicz
  • T. Dhaene
  • I. Couckuyt
  • J. A. Litka

  - Year 2024

  Design of ultra-wideband antennas for in-door localization applications is a challenging task. It involves development of geometry that maintains appropriate balance between the size and performance. In this work, a topologically-flexible monopole has been generated using a stratified framework which embeds a gradient-based trust-region (TR) optimization algorithm in a meta-loop that gradually increases the structure dimensionality....

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• The methodology of design of satellite working mechanism of positive displacement machine

  Publication

  • P. Śliwiński

  - Scientific Reports - Year 2022

  In this paper is described a methodology of design of satellite mechanism consisting of two noncircular gears (externally toothed rotor and internally toothed curvature) and circular gears (satellites). In the presented methodology is assumed that the rotor pitch line is known, and the curvature pitch line is necessary to designate. The presented methodology applies to mechanisms for which the number of the curvature humps is at...

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• Impact of rotor geometry optimization on the off-design ORC turbine performance

  Publication

  • Ł. Witanowski
  • P. Klonowicz
  • P. Lampart
  • P. Klimaszewski
  • T. Suchocki
  • Ł. Jędrzejewski
  • D. Zaniewski
  • P. Ziółkowski

  - ENERGY - Year 2023

  The paper describes the method of CFD based Nelder-Mead optimization of a 10 kW single-stage axial turbine operating in an ORC system working on R7100. The total-to-static isentropic efficiency is defined as an objective function. Multi-point linear regression is carried out to determine the significance of the objective function arguments and to pick up the set of particular variables and characteristic quantities (e.g. flow angles)...

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• Expedited Multi-Objective Design Optimization of Miniaturized Microwave Structures Using Physics-Based Surrogates

  Publication

  • S. Kozieł
  • A. Bekasiewicz
  • P. Kurgan
  • J. W. Bandler

  - Year 2015

  In this paper, a methodology for fast multi-objective design optimization of compact microwave circuits is presented. Our approach exploits an equivalent circuit model of the structure under consideration, corrected through implicit and frequency space mapping, then optimized by a multi-objective evolutionary algorithm. The correction/optimization of the surrogate is iterated by design space confinement and segmentation based on...

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• Design and computational fluid dynamics analysis of the last stage of innovative gas-steam turbine

  Publication

  • S. Głuch
  • P. Ziółkowski
  • Ł. Witanowski
  • J. Badur

  - Archives of Thermodynamics - Year 2021

  Research regarding blade design and analysis of flow has been attracting interest for over a century. Meanwhile new concepts and design approaches were created and improved. Advancements in information technologies allowed to introduce computational fluid dynamics and computational flow mechanics. Currently a combination of mentioned methods is used for the design of turbine blades. These methods enabled us to improve flow efficiency...

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• Greenhouse control system design

  Publication

  • K. Napierski

  - Year 2022

  Coraz większa populacja i zmniejszające się tereny uprawne wymusza efektywniejsze metody uprawy roślin. Zaradzić temu mogą układu hydroponiczne, które dzięki rozwojowi techniki są w stanie osiągać znacznie większe oraz bardziej jednorodne plony. Jest to możliwe dzięki zaawansowanym systemom opartym na dokładnych urządzeniach pomiarowych, sterowaniu w zamkniętej pętli oraz mikrokontrolerom umożliwiającym...

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• Polarization rotaror - analysis and design

  Publication

  • R. Lech
  • J. Mazur

  - Year 2008

  W artykule przedstawiono metodę analizy wielosekcyjnego polaryzatora złożonego z periodycznych szyków obiektów cylindrycznych. W celu analizy badanej struktury zastosowano metodę pełnofalową opartą na metodzie dopasowania rodzajów.

• Design of a smart lock system

  Publication

  • D. Borkowski
  • D. Cholewa
  • N. Radwan-Praglowska
  • J. Tulicki
  • T. Wegiel

  - Year 2019

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• COMPLEX ISSUES IN ARCHITECTURAL DESIGN

  Publication

  • R. Barełkowski

  - Przestrzeń i Forma - Year 2018

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• Design of a modular impedance tomography

  Publication

  • A. Bujnowski
  • J. Wtorek
  • B. Truyen
  • J. Cornelis

  - Year 2005

  W pracy przedstawiono konstrukcję, zasadę działania oraz podstawowe parametry tomografu impedancyjnedo przeznaczonego do pomiarów w gruncie.

• Design and construction of industrial floors

  Publication

  • A. Małasiewicz

  - Year 2003

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• Reliable Networks Design and Modeling

  Publication

  • J. Rak
  • D. Tipper
  • K. Walkowiak

  - TELECOMMUNICATION SYSTEMS - Year 2011

  Słowo wstępne numeru specjalnego czasopisma Telecommunication Systems Journal

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• Recirculative reactors hydraulic design

  Publication

  • J. Sawicki

  - Year 2011

  Zdefiniowano pojęcie efektywnej sprawności reaktora przepływowego na bazie krzywej gestości rozkładu czasu zatrzymania.Przedstawiono charakterystykę funkcjonalną reaktorów rozdzielających i łączących strumienie płynów. Zaproponowano metodykę wyznaczania efektywnej sprawności dla obu typów urzadzeń.

• A fast technique for diplexer design

  Publication

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

  - Year 2009

  w artykule zaprezentowano nową metodę projektowanie mikrofalowych diplekserów. metoda bazuje na dokładnej syntezie filtrów kanałowych wykorzystującej modele zastępcze współczynników sprzężeń w celu uzyskania wstępnych wartości wymiarów układu. następnie dokonywana jest pełnofalowa optymalizacja filtrów kanałowych. ostateczne strojenie numeryczne jest ograniczone do tylko jednego elementu.

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• On the complexity of resilient network design

  Publication

  • A. Tomaszewski
  • M. Pióro
  • M. Żotkiewicz

  - NETWORKS - Year 2010

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• Design and modeling of reliable networks

  Publication

  • J. Rak
  • B. Jaumard
  • R. Wessaely

  - TELECOMMUNICATION SYSTEMS - Year 2014

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• Biophilic Design: A Trend Watch

  Publication

  • K. Zielińska-Dąbkowska

  - ARC Lighting In Architecture - Year 2019

  During the 20th century, many people migrated to cities for employment and economic opportunities, abandoning farming and natural landscapes so their direct connection to the countryside and nature was lost. This process continues to this day with unprecedented urban growth, in fact, it’s estimated 68% of the world population will live in urban areas by 2050. Due to the evolutionary disposition of humans, when people live in an...

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• Multi-Criterial Design of Antennas with Tolerance Analysis Using Response-Feature Predictors

  Publication

  • A. Pietrenko-Dąbrowska
  • S. Kozieł
  • L. Leifsson

  - Year 2022

  Imperfect manufacturing is one of the factors affecting the performance of antenna systems. It is particularly important when design specifications are strict and leave a minimum leeway for a degradation caused by geometry or material parameter deviations from their nominal values. At the same time, conventional antenna design procedures routinely neglect to take the fabrication tolerances into account, which is mainly a result...

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• Surrogate-Assisted Design of Checkerboard Metasurface for Broadband Radar Cross-Section Reduction

  Publication

  • M. Abdullah
  • S. Kozieł

  - IEEE Access - Year 2021

  Metasurfaces have been extensively exploited in stealth applications to reduce radar cross section (RCS). They rely on the manipulation of backward scattering of electromagnetic (EM) waves into various oblique angles. However, arbitrary control of the scattering properties poses a significant challenge as a design task. Yet it is a principal requirement for making RCS reduction possible. This article introduces a surrogate-based...

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• Jarosław Przewłócki prof. dr hab. inż.

  People

  Department of Technical Fundamentals of Architecture Design

  Jarosław Przewłócki jest profesorem na Wydziale Architektury Politechniki Gdańskiej, zastępca kierownika Katedry Technicznych Podstaw Projektowania Architektonicznego. Podstawowym kierunkiem jego działalności naukowej są badania zjawisk losowych i zastosowanie metod probabilistycznych oraz teorii niezawodności w budownictwie, a w szczególności w geotechnice. Autor i współautor około stu publikacji naukowych, w tym szeregu książek...

• Impact of AI-Based Tools and Urban Big Data Analytics on the Design and Planning of Cities

  Publication

  • D. D. Kamrowska-Załuska

  - Land - Year 2021

  Wide access to large volumes of urban big data and artificial intelligence (AI)-based tools allow performing new analyses that were previously impossible due to the lack of data or their high aggregation. This paper aims to assess the possibilities of the use of urban big data analytics based on AI-related tools to support the design and planning of cities. To this end, the author introduces a conceptual framework to assess the...

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• Low-cost multi-objective design of compact microwave structures using domain patching

  Publication

  • A. Bekasiewicz
  • S. Kozieł
  • J. W. Bandler

  - Year 2016

  A good compromise between size and electrical performance is an important design consideration for compact microwave structures. Comprehensive information about size/performance trade-offs can be obtained through multi-objective optimization. Due to considerable electromagnetic (EM) cross-couplings in highly compressed layouts, the design process has to be conducted at the level of high-fidelity EM analysis which is computationally...

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• Efficient Multi-Objective Simulation-Driven Antenna Design Using Co-Kriging

  Publication

  • S. Kozieł
  • A. Bekasiewicz
  • I. Couckuyt
  • T. Dhaene

  - IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION - Year 2014

  A methodology for fast multi-objective antenna optimization is presented. Our approach is based on response surface approximation (RSA) modeling and variable-fidelity electromagnetic (EM) simulations. In the design process, a computationally cheap RSA surrogate model constructed from sampled coarse-discretization EM antenna simulations is optimized using a multi-objective evolutionary algorithm. The initially determined Pareto...

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• Design Methodology for Small Passenger Ships On the Example of the Ferryboat Motława 2 Driven by Hybrid Propulsion System

  Publication

  • P. Gełesz
  • A. Karczewski
  • J. Kozak
  • W. Litwin
  • Ł. Piątek

  - Polish Maritime Research - Year 2017

  Dynamic development in practically all elds of science and engineering has not passed over shipbuilding . In last years , engineers got to their use computer soware 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]....

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• Influence of addition of carbon nanotubes on rheological properties of selected liquid lubricants - a computer simulation study

  Publication

  • A. Chopra
  • S. Winczewski

  - TASK Quarterly - Year 2020

  This work is motivated by the improvement of anti-friction properties of lubricants by addition of CNTs proved experimentally in literature. In particular, a methodology is developed to compute the shear viscosity of liquid lubricants (Propylene Glycol) based on Molecular Dynamics simulation. Non-Equilibrium molecular dynamics (NEMD) approach is used with a reactive force field ReaxFF implemented in LAMMPS. The simulations are...

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• Multi-core processing system for real-time image processing in embedded computer vision applications

  Publication

  • R. Żaglewski
  • M. Wójcikowski

  - Year 2008

  W artykule opisano architekturę wielordzeniowego programowalnego systemu do przetwarzania obrazów w czasie rzeczywistym. Dane obrazu są przetwarzane równocześnie przez wszystkie procesory. System umożliwia niskopoziomowe przetwarzanie obrazów,np. odejmowanie tła, wykrywanie obiektów ruchomych, transformacje geometryczne, indeksowanie wykrytych obiektów, ocena ich kształtu oraz podstawowa analiza trajektorii ruchu. Ang:This paper...

• Usage of a computer based training program for a refrigerating plant, a new tool for marine engineers training.

  Publication

  • T. Hajduk
  • Z. Bonca

  - Zeszyty Naukowe Wyższej Szkoły Morskiej w Szczecinie - Year 2003

  Przedstawiono możliwości szkoleniowe dydaktycznego programu komputerowego typu cbt - chłodnia prowiantowa. Omówiono jego strukturę i zawartość merytoryczną Podano sposób oceny nauczanej wykorzystującej ten program. Wskazano korzyści płynące z zastosowania programów typu cbt w procesie kształcenia mechaników okrętowych.

• THE MANAGEMENT OF DESIGNING PROCESSES IN THE CREATION OF THE KNOWLEDGE BASE SYSTEM : Proceedings of International Computer Science Convention

  Publication

  • C. Orłowski

  - Year 2013

  ...

• Novel Structure and EM-Driven Design of Small UWB Monopole Antenna

  Publication

  • S. Kozieł
  • A. Bekasiewicz

  - Year 2014

  A novel structure of a small UWB monopole antenna is presented. In our approach, a compact size is achieved by means of a meander line for current path enlargement as well as the two parameterized slits that introduce additional degrees of freedom helping to ensure good impedance matching. The antenna design is carried out using surrogate-based optimization involving variable-fidelity EM simulations. This allows us to simultaneously...

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• CHEMICAL ENGINEERING RESEARCH & DESIGN

  Journals

  ISSN: 0263-8762 , eISSN: 1744-3563

• DESIGN AUTOMATION FOR EMBEDDED SYSTEMS

  Journals

  ISSN: 0929-5585 , eISSN: 1572-8080

• Scandinavian Journal of Design History

  Journals

  ISSN: 0906-3447

• Chemical Biology & Drug Design

  Journals

  ISSN: 1747-0277 , eISSN: 1747-0285

• STEEL CONSTRUCTION - DESIGN AND RESEARCH

  Journals

  ISSN: 1867-0520 , eISSN: 1867-0539

• Journal of Ship Production and Design

  Journals

  ISSN: 2158-2866 , eISSN: 2158-2874

• Interiors-Design Architecture Culture

  Journals

  ISSN: 2041-9112 , eISSN: 2041-9120

• FORMAL METHODS IN SYSTEM DESIGN

  Journals

  ISSN: 0925-9856 , eISSN: 1572-8102

• Drug Design Development and Therapy

  Journals

  ISSN: 1177-8881

• Journal of Visual Art and Design

  Journals

  ISSN: 2337-5795 , eISSN: 2338-5480

• Architectural Engineering and Design Management

  Journals

  ISSN: 1745-2007 , eISSN: 1752-7589

• Interaction Design & Architecture(s)

  Journals

  ISSN: 1826-9745 , eISSN: 2283-2998

• Journal of Computational Design and Engineering

  Journals

  ISSN: 2288-4300 , eISSN: 2288-5048

• FINITE ELEMENTS IN ANALYSIS AND DESIGN

  Journals

  ISSN: 0168-874X , eISSN: 1872-6925

• Grafica-Journal of Graphic Design

  Journals

  ISSN: 2014-9298

• Journal of Engineering Design and Technology

  Journals

  ISSN: 1726-0531

• Journal of Facade Design and Engineering

  Journals

  ISSN: 2213-302X