Wyniki wyszukiwania dla: CIRCULAR POLARIZATION , ANTENNA DESIGN , SIMULATION-DRIVEN DESIGN , WIDE-ANGLE BEAM , BROADBAND ANTENNA

• Biophilic Design: A Trend Watch

  Publikacja

  • K. Zielińska-Dąbkowska

  - ARC Lighting In Architecture - Rok 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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• Expedited Multi-Objective Design Optimization of Miniaturized Microwave Structures Using Physics-Based Surrogates

  Publikacja

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

  - Rok 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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• Audit of the existing surfaces /pavements of sidewalks and roads in the Gdańsk-Oliwa district, with particular emphasis on the location of the "Polanki" market and its direct neighbourhood in the contexts of pavement design of the "Polanki"market; stage from 2019 year.

  Dane Badawcze

  open access

  • J. Borucka
  • W. Mazurkiewicz

  The document presents a valorization of paved surfaces (sidewalks and roads) in the Gdańsk-Oliwa district, prapared on the basis of an preliminary inventory work – 21 tables (one table for each street ) with a description of the street and materials used, mostly supplemented with photographic material. The valorization, after the initial inventory,...

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

  Publikacja

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

  - Archives of Thermodynamics - Rok 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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• A multiparameter simulation-driven analysis of ship turning trajectory concerning a required number of irregular wave realizations

  Publikacja

  • M. Gil
  • P. Krata
  • P. Kozioł
  • T. Hinz

  - OCEAN ENGINEERING - Rok 2024

  In times of progressive automation of the marine industry, accurate modeling of ship maneuvers is of utmost importance to all parties involved in maritime transportation. Despite the existence of modern collisionavoidance algorithms using 6DOF motion models to predict ship trajectories in waves, the impact of stochastic realization of irregular waves is usually neglected and remains under-investigated. Therefore, herein, this phenomenon...

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

  Publikacja

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

  - Rok 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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• Chemically Selective Alternatives to Photoferroelectrics for Polarization-Enhanced Photocatalysis: The Untapped Potential of Hybrid Inorganic Nanotubes

  Publikacja

  • J. Elliott
  • E. Poli
  • I. Scivetti
  • L. Ratcliff
  • L. Andrinopoulos
  • J. Dziedzic
  • N. Hine
  • A. Mostofi
  • C. Skylaris
  • P. Haynes
  • G. Teobaldi

  - Advanced Science - Rok 2016

  Linear-scaling density functional theory simulation of methylated imogolite nanotubes (NTs) elucidates the interplay between wall-polarization, bands separation, charge-transfer excitation, and tunable electrostatics inside and outside the NT-cavity. The results suggest that integration of polarization-enhanced selective photocatalysis and chemical separation into one overall dipole-free material should be possible.

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• Detection of defects in PMMA beam using shear waves - numerical simulation and experiment

  Publikacja

  • P. Żółtowski
  • K. Wilde

  - Rok 2005

  Test doświadczalny falami sprężystymi jest częścią systemu diagnostycznego belek. Autorzy badają pole przyspieszeń wywołane przepływem fal ultradźwiękowych i jego modyfikacje wynikające z wprowadzonych uszkodzeń belki. Artykuł porównuje wyniki eksperymentalne z symulacjami numerycznymi MES. The experimental test introduced in the paper is the part of the diagnostic system utilizing the elastic waves. The authors investigate the...

• 3D Form analysis of rope deformation with long towed underwater hydroacoustic antenna

  Publikacja

  • J. Bielański

  - Archives of Civil and Mechanical Engineering - Rok 2007

  Artykuł opisuje rozwiązanie zagadnienia brzegowego dla zestawu długiej liny holującej i podwodnej anteny hydroakustycznej o gęstości, tej ostatniej, nieznacznie większej od gęstości wody i małej sztywności. Znane jest tylko położenie punktu zamocowania liny do okrętu (p-kt początkowy holowanego zestawu) oraz głębokość, na której znajduje się koniec anteny. Przedstawiono analizę sił działających na holowany zestaw, ich równania...

• Improved compact low-profile quadband planar monopole antenna for mobile handsets

  Publikacja

  • M. Kitliński
  • T. Borodo

  - Rok 2006

  Przedstawiono konstrukcję wewnętrznej monopolowej anteny planarnej przystosowanej do pracy wielozakresowej telefonu przenośnego. Antena zapewnia poprawną pracę w systemach GSM1900, DCS1800, PCS1900, UMTS2050. Wykorzystano strukturę zawierającą dwie konfiguracje monopolowe (długi i krótki monopol). Radiator zanurzono w materiale dielektrycznym, co poprawiło jego charakterystyki promieniowania.

• Substrate optimization for a planar antenna of terahertz Si field effect transistor detectors

  Publikacja

  • D. But
  • D. Coquillat
  • N. Dyakonova
  • F. Teppe
  • S. Ruffenach
  • W. Knap
  • P. Kopyt
  • J. Marczewski

  - Rok 2016

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• Coupled dual-layer antenna for optimized 250 GHz silicon CMOS detector

  Publikacja

  • K. Ikamas
  • D. But
  • E. Javadi
  • C. Kolacinski
  • A. Lisauskas

  - Rok 2022

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• COMPUTER AIDED GEOMETRIC DESIGN

  Czasopisma

  ISSN: 0167-8396 , eISSN: 1879-2332

• DESIGN AUTOMATION FOR EMBEDDED SYSTEMS

  Czasopisma

  ISSN: 0929-5585 , eISSN: 1572-8080

• Scandinavian Journal of Design History

  Czasopisma

  ISSN: 0906-3447

• Interiors-Design Architecture Culture

  Czasopisma

  ISSN: 2041-9112 , eISSN: 2041-9120

• FORMAL METHODS IN SYSTEM DESIGN

  Czasopisma

  ISSN: 0925-9856 , eISSN: 1572-8102

• Journal of Visual Art and Design

  Czasopisma

  ISSN: 2337-5795 , eISSN: 2338-5480

• Journal of Computational Design and Engineering

  Czasopisma

  ISSN: 2288-4300 , eISSN: 2288-5048

• Grafica-Journal of Graphic Design

  Czasopisma

  ISSN: 2014-9298

• Journal of Engineering Design and Technology

  Czasopisma

  ISSN: 1726-0531

• Journal of Facade Design and Engineering

  Czasopisma

  ISSN: 2213-302X

• Computer-Aided Design and Applications

  Czasopisma

  ISSN: 1686-4360

• Journal of Graphic Engineering and Design

  Czasopisma

  ISSN: 2217-379X

• AIJ Journal of Technology and Design

  Czasopisma

  ISSN: 1341-9463

• Molecular Systems Design & Engineering

  Czasopisma

  ISSN: 2058-9689

• Printed Circuit Design and Fab

  Czasopisma

  ISSN: 1939-5442

• International Journal of Design Education

  Czasopisma

  ISSN: 2325-128X

• Journal of Design and Built Environment

  Czasopisma

  eISSN: 2232-1500

• Journal of Accessibility and Design for All

  Czasopisma

  ISSN: 2013-7087

• International Journal of Visual Design

  Czasopisma

  eISSN: 2325-1581

• Engineering Design Graphics Journal

  Czasopisma

  ISSN: 0046-2012

• International Journal of Design in Society

  Czasopisma

  ISSN: 2325-1328

• IEEE DESIGN & TEST OF COMPUTERS

  Czasopisma

  ISSN: 0740-7475

• Journal of Hygienic Engineering and Design

  Czasopisma

  eISSN: 1857-8489

• Chinese Journal of Engineering Design

  Czasopisma

  ISSN: 1006-754X

• Journal of Formative Design in Learning

  Czasopisma

  eISSN: 2509-8039

• Material Design and Processing Communications

  Czasopisma

  eISSN: 2577-6576

• International Journal of Food Design

  Czasopisma

  ISSN: 2056-6522 , eISSN: 2056-6530

• Journal of Design, Business and Society

  Czasopisma

  ISSN: 2055-2106 , eISSN: 2055-2114

• Strategic Design Research Journal

  Czasopisma

  eISSN: 1984-2988

• INTERNATIONAL JOURNAL OF VEHICLE DESIGN

  Czasopisma

  ISSN: 0143-3369 , eISSN: 1741-5314

• Low-cost multiband compact branch-line coupler design using response features and automated EM model fidelity adjustment

  Publikacja

  • S. Kozieł
  • A. Bekasiewicz

  - INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING - Rok 2018

  Design closure of compact microwave components is a challenging problem because of significant electromagnetic (EM) cross-couplings in densely arranged layouts. A separate issue is a large number of designable parameters resulting from replacement of conventional transmission line sections by compact microstrip resonant cells. This increases complexity of the design optimization problem and requires employment of expensive high-fidelity...

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

  Publikacja

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

  - REVIEW OF SCIENTIFIC INSTRUMENTS - Rok 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

  Publikacja

  • J. Szustakiewicz

  - Rok 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

  Publikacja

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

  - IEEE Access - Rok 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

  Publikacja

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

  - Rok 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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• Design of modified PID controllers for 3D crane control

  Publikacja

  • A. Cellmer
  • B. Banach
  • R. Piotrowski

  - Rok 2017

  From the control viewpoint, 3D crane is a dynamic, nonlinear and multidimensional electromechanical system. In this paper, five control systems using a set-point weighted PID controllers (modified controllers) are designed. These structures and properties are presented. Optimization process of controllers settings based on integral performance indices is made. Simulation tests of control systems are presented. Comparison of integral...

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• Protection System Design of Induction Motor for Industries

  Publikacja

  • A. M. Soomar

  - Rok 2022

  The fundamental and durable structures of induction motor, as well as their low manufacturing cost, make them popular components in a wide range of current applications. Providing a safety net for employees is a must-have for businesses. This project’s motivation for improvement is to provide industrial motors, lift motors, pumps, and so on with safety. An induction motor’s primary goal is to protect it from problems, such as...

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• Analyses of Shear Angle in Orthogonal Cutting of Pine Wood

  Publikacja

  • K. Orłowski
  • D. Chuchała
  • G. Sinn

  - Drvna Industrija - Rok 2022

  The determination of energy effects for wood machining processes, such as cutting power and cutting forces, is very useful in designing of manufacture process of wooden products. A more accurate prediction of cutting forces requires a correct determination of the shear angle value, which can be determined using various models. In this article, shear angle values for an orthogonal linear cutting process of pine wood are determined. The...

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