Search results for: design of pavement structure

• 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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• Resonance microstrip structure with patch of arbitrary convex geometry with the use of field matching technique

  Publication

  • R. Lech

  - JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS - Year 2018

  An analysis of the resonance frequency problem of planar microstrip structure with patch of arbitrary convex geometry is presented. A full-wave analysis is employed utilizing a combination of Galerkin’s moment method and field matching technique. In this approach, a field matching technique is adopted to calculate the patch surface current densities, and next the method of moments is utilized to calculate resonance frequencies...

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• On Nature-Inspired Design Optimization of Antenna Structures Using Variable-Resolution EM Models

  Publication

  • S. Kozieł
  • A. Pietrenko-Dąbrowska

  - Scientific Reports - Year 2023

  Numerical optimization has been ubiquitous in antenna design for over a decade or so. It is indispensable in handling of multiple geometry/material parameters, performance goals, and constraints. It is also challenging as it incurs significant CPU expenses, especially when the underlying computational model involves full-wave electromagnetic (EM) analysis. In most practical cases, the latter is imperative to ensure evaluation reliability....

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• Jarosław Przewłócki prof. dr hab. inż.

  People

  Department of Technical Fundamentals of Architectural 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...

• Synthesis, crystal structure and cytotoxic activity of ruthenium(II) piano-stool complex with N,N-chelating ligand

  Publication

  • P. Rogala
  • A. Jabłońska-Wawrzycka
  • K. Kazimierczuk
  • A. Borek
  • A. Błażejczyk
  • J. Wietrzyk
  • B. Barszcz

  - JOURNAL OF MOLECULAR STRUCTURE - Year 2016

  A mononuclear compound of the general formula [(η6-p-cymene)RuIICl(2,2′-PyBIm)]PF6 has been synthesized from a bidentate N,N-donor ligand, viz. 2,-(2′-pyridyl)benzimidazole (2,2′-PyBIm) and the corresponding chloro-complex [(η6-p-cymene)Ru(μ-Cl)Cl]2 (precursor). The isolated coordination compound was characterized by IR, UV–vis and 1H, 13C NMR spectroscopies. The single crystal X-ray analysis of the complex reveals that the asymmetric...

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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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• 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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• Exploring the factor structure and the validity of the abbreviated Basic and Earning Self-Esteem Scales

  Publication

  • A. M. Dåderman
  • B. Basińska

  - Nordic Psychology - Year 2013

  The original longer versions (Forsman & Johnson, 1996) and abbreviated versions of the Basic and Earning Self-Esteem Scales have been used in clinical and non-clinical settings, but little is known about the factor structure and the validity of these scales in their abbreviated forms. The original longer versions of the scales comprise several dimensions, but both abbreviated versions of the scales have been interpreted as if they...

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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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• Optimization of Nuclear Power Share in the Structure of Electricity Production in Poland in Time Perspective by 2060

  Publication

  • M. Jaskólski

  - Acta Energetica - Year 2014

  The author of this paper presented the results of a system analysis using MARKAL model, aiming at the optimization of nuclear power share in power generation structure in Poland in time perspective by 2060. Optimization criterion is the minimization of the objective function, i.e. the total cost of energy system, taking into account constraints related to CO2, SOx and NOx emissions and obligatory shares of electricity from renewable...

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• Fabrication and Crystal Structure of Sol-Gel Deposited BST Thin Films with Compositional Gradient

  Publication

  • D. Czekaj
  • A. Lisińska-Czekaj
  • J. Plewa

  - ARCHIVES OF METALLURGY AND MATERIALS - Year 2017

  In the present research technology of compositionally graded barium strontium titanate Ba1-xSrxTiO3 thin films deposited on stainless steel substrates by sol-gel spin coating followed with thermal annealing at T = 650°C is reported. Results of thermal behavior of the sol-gel derived powders with compositions used for fabrication of graded structure (i.e. with Sr mole fraction x = 0.5, 0.4 and 0.3) are described. X-ray diffraction...

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• NUMERICAL MODEL QUALITY ASSESSMENT OF OFFSHORE WIND TURBINE SUPPORTING STRUCTURE BASED ON EXPERIMENTAL DATA

  Publication

  • M. Kahsin
  • M. Łuczak

  - Year 2015

  As a structure degrades some changes in its dynamical behavior can be observed, and inversely, observation and evaluation of these dynamical changes of the structure can provide information of structural state of the object. Testing of the real structure, besides of being costly, can cover only limited working states. It is particularly considerable in case of hardly accessible, and randomly/severely dynamically loaded offshore...

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• The influence of Be addition on the structure and thermal properties of alkali-silicate glasses

  Publication

  • N. A. Wójcik
  • S. Ali
  • D. Möncke
  • N. Tagiara
  • E. Kamitsos
  • H. Segawa
  • M. Eriksson
  • B. Jonson

  - JOURNAL OF NON-CRYSTALLINE SOLIDS - Year 2019

  Be-Na-(Li)-Si oxide glasses containing up to 15 mol% of BeO were prepared. Their structure was characterized by X-ray powder diffraction and Raman as well as infrared spectroscopic techniques, while their chemical compositions were examined by Inductively Coupled Plasma Optical Emission Spectrometry. All materials were found to be amorphous and contain Al contaminations from minor dissolution of the alumina crucibles. The results...

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• A review of design approaches for the implementation of low-frequency noise measurement systems

  Publication

  • G. Scandurra
  • C. Ciofi
  • J. Smulko
  • H. Wen

  - REVIEW OF SCIENTIFIC INSTRUMENTS - Year 2022

  Electronic noise has its roots in the fundamental physical interactions between matter and charged particles, carrying information about the phenomena that occur at the microscopic level. Therefore, Low-Frequency Noise Measurements (LFNM) are a well-established technique for the characterization of electron devices and materials and, compared to other techniques, they offer the advantage of being non-destructive and of providing...

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• Design thinking qualifications framework – standardizing the innovative approach to entrepreneurial education delivery to engineering students

  Publication

  • J. Szustakiewicz

  - Year 2014

  Highly competitive labor market stimulates increasing expectations towards fresh university alumni. It is not enough to be an expert - well educated and often experienced - in chosen discipline. High variability of the business environment, continuous change, number of risks, together with higher work demand than supply, shape clear employers’ expectations: entrepreneurial employees are wanted. On this ground a need for entrepreneurial...

• Design of a compact planar transmission line for miniaturized rat-race coupler with harmonics suppression

  Publication

  • A. Lalbakhsh
  • G. Mohamadpour
  • S. Roshani
  • M. Ami
  • S. Roshani
  • A. S. Sayem
  • M. Alibakhshikenari
  • S. Kozieł

  - IEEE Access - Year 2021

  This paper presents an elegant yet straightforward design procedure for a compact rat-race coupler (RRC) with an extended harmonic suppression. The coupler’s conventional λ/4 transmission lines (TLs) are replaced by a specialized TL that offers significant size reduction and harmonic elimination capabilities in the proposed approach. The design procedure is verified through the theoretical, circuit, and electromagnetic (EM) analyses,...

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• Minimization of vibrations during milling of flexible structures using mechatronic design techniques

  Publication

  • K. J. Kaliński
  • M. Galewski
  • M. Mazur
  • N. Stawicka-Morawska

  - Year 2019

  The paper presents an innovative effective method of minimizing vibrations during milling of flexible structures, using a new vibration suppression method based on a workpiece holder with adjustable support stiffness. The proposed method is rooted in mechatronic design techniques, which can become a standard procedure for optimizing the milling process.

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• COMPUTER AIDED GEOMETRIC DESIGN

  Journals

  ISSN: 0167-8396 , eISSN: 1879-2332

• DESIGN AUTOMATION FOR EMBEDDED SYSTEMS

  Journals

  ISSN: 0929-5585 , eISSN: 1572-8080

• Scandinavian Journal of Design History

  Journals

  ISSN: 0906-3447

• Interiors-Design Architecture Culture

  Journals

  ISSN: 2041-9112 , eISSN: 2041-9120

• FORMAL METHODS IN SYSTEM DESIGN

  Journals

  ISSN: 0925-9856 , eISSN: 1572-8102

• Journal of Visual Art and Design

  Journals

  ISSN: 2337-5795 , eISSN: 2338-5480

• Journal of Computational Design and Engineering

  Journals

  ISSN: 2288-4300 , eISSN: 2288-5048

• 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

• Computer-Aided Design and Applications

  Journals

  ISSN: 1686-4360

• Journal of Graphic Engineering and Design

  Journals

  ISSN: 2217-379X

• AIJ Journal of Technology and Design

  Journals

  ISSN: 1341-9463

• Molecular Systems Design & Engineering

  Journals

  ISSN: 2058-9689

• Printed Circuit Design and Fab

  Journals

  ISSN: 1939-5442

• International Journal of Design Education

  Journals

  ISSN: 2325-128X

• Journal of Design and Built Environment

  Journals

  eISSN: 2232-1500

• Journal of Accessibility and Design for All

  Journals

  ISSN: 2013-7087

• International Journal of Visual Design

  Journals

  eISSN: 2325-1581

• Engineering Design Graphics Journal

  Journals

  ISSN: 0046-2012

• International Journal of Design in Society

  Journals

  ISSN: 2325-1328

• IEEE DESIGN & TEST OF COMPUTERS

  Journals

  ISSN: 0740-7475

• Journal of Hygienic Engineering and Design

  Journals

  eISSN: 1857-8489

• Chinese Journal of Engineering Design

  Journals

  ISSN: 1006-754X

• Journal of Formative Design in Learning

  Journals

  eISSN: 2509-8039

• Material Design and Processing Communications

  Journals

  eISSN: 2577-6576

• International Journal of Food Design

  Journals

  ISSN: 2056-6522 , eISSN: 2056-6530

• Journal of Design, Business and Society

  Journals

  ISSN: 2055-2106 , eISSN: 2055-2114

• Strategic Design Research Journal

  Journals

  eISSN: 1984-2988

• INTERNATIONAL JOURNAL OF VEHICLE DESIGN

  Journals

  ISSN: 0143-3369 , eISSN: 1741-5314

• PROTEIN ENGINEERING DESIGN & SELECTION

  Journals

  ISSN: 1741-0126 , eISSN: 1741-0134

• Global Design Optimization of Microwave Circuits Using Response Feature Inverse Surrogates

  Publication

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

  - Year 2022

  Modern microwave design has become heavily reliant on full-wave electromagnetic (EM) simulation tools, which are necessary for accurate evaluation of microwave components. Consequently, it is also indispensable for their development, especially the adjustment of geometry parameters, oriented towards performance improvement. However, EM-driven optimization procedures incur considerable computational expenses, which may become impractical...

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• Chromium Cluster Luminescence: Advancing Near‐Infrared Light‐Emitting Diode Design for Next‐Generation Broadband Compact Light Sources

  Open Research Data

  open access

  • M. Kamiński
  • S. Mahlik
  • T. Leśniewski

  In modern technology devices, an energy-saving miniature near-infrared (NIR) light source plays a critical role in non-destructive, non-invasive sensing applications and further advancement of technology. This dataset reports the broadband NIR luminescence of Cr3+ clusters for designing phosphor-converted NIR light-emitting diodes as an alternative...