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Wyniki wyszukiwania dla: BOX - BEHNKEN DESIGN

Wyniki wyszukiwania dla: BOX - BEHNKEN DESIGN

  • Experience Based Decisional DNA (DDNA) to Support Sustainable Product Design

    Publikacja

    - Rok 2018

    This paper presents the idea of providing engineering design knowledge to designers working on sustainable product design and development process. The new product development process often requires significant amount of design knowledge which can be saved and recalled by designers during the design process. This knowledge is very important for successful sustainable product development as it can include material selection, product...

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  • Importance of model tests in design and operation of watercraft for example CTO

    Publikacja

    Ship Hydromechanics Division is a specialized research and development department of Ship Design and Research Centre conducting tests and research in the field of hydromechanics, connected with design and operation of ships and other floating structures, in scope of: predictions, numerical analyses, designs of - hull shape optimized with respect to the ship’s functions with the application of modern design tools, screw propellers...

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  • Lighting design for urban revitalization. The case of Poland

    Publikacja

    This paper reflects on the basic research done in the area of public lighting in regard to revitalization processes. The general purpose of this scientific paper is to research a role of an implementation of public lighting design within revitalization frameworks. Referring to a wide spectrum of academic publications, the paper provides an overview of revitalization and public lighting objectives. The emphasize is put on a need...

  • Structural Design and Sensitivity Analysis of Semi-Rigid Pavement of a Motorway

    Publikacja

    - Rok 2012

    This paper presents application of mechanistic-empirical methods in design of semi-rigid pavement for a section of a motorway in Poland. The stage construction was assumed. Three fatigue criteria were applied in the design. For asphalt fatigue cracking and subgrade soil the criteria from the Asphalt Institute (1981) were applied. For fatigue cracking of cement stabilized bases the Dempsey (1984) and De Beer (1992) criteria were...

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  • Design of reverse curves adapted to the satellite measurements

    Publikacja

    The paper presents a new method for designing railway route in the direction change area adapted to the Mobile Satellite Measurements technique. The method may be particularly useful in the situations when both tangents cannot be connected in an elementary way using a circular arc with transition curves. Thus, the only solution would be the application of two circular arcs of opposite curvature signs, that is, the use of an inverse...

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  • Electrical Engineering [Design and Production Engineering][2023/24]

    Kursy Online
    • F. Kutt
    • I. Mosoń

    Additional teaching materials for Electrical Engineering for Design and Production Engineering of the Faculty of Mechanical Engineering and Ship Technology course, conducted at the Faculty of Electrical and Control Engineering - 4'th semester, undergraduate

  • Modernization of tram lines with the use of railway design standards

    Publikacja

    The article presents the main differences between the process of upgrading railway and tram routes. Geometrical layout designing is an issue of the interest. Railway designing rules that may be helpful in the design of the modernization are specified.

  • Future research directions in design of reliable communication systems

    Publikacja
    • J. Rak
    • M. Pickavet
    • K. S. Trivedi
    • J. A. Lopez
    • A. M. C. A. Koster
    • J. P. Sterbenz
    • E. Çetinkaya
    • T. Gomes
    • M. Gunkel
    • K. Walkowiak
    • D. Staessens

    - TELECOMMUNICATION SYSTEMS - Rok 2015

    In this position paper on reliable networks, we discuss new trends in the design of reliable communication systems. We focus on a wide range of research directions including protection against software failures as well as failures of communication systems equipment. In particular, we outline future research trends in software failure mitigation, reliability of wireless communications, robust optimization and network design, multilevel...

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  • Podejście środowiskowe w dydaktyce projektowania Sustainable approach in teaching of design

    Publikacja

    - Rok 2018

    The aim of the paper is to assess the inclusion of academic teaching design to the process of sustainable development and proposals for an integrated approach in training architects. The article presents an original interpretation of environmental design in the field of architecture and urban planning. The significance of the environmental perspective is presented in the context of growing spatial and social fragmentation. The...

  • Design of novel microstrip directional coupler for differential signal decoupling

    This study describes a concept of a novel microstrip directional coupler for differential signal decoupling, which can be used to digital signal overhearing on printed-circuit-boards. The complete design method is proposed with rules given analytically. Considered methodology is suitable for synthesis of couplers with low coupling factors, which have negligible influence on the transmission in main line. Theoretical considerations...

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  • Hybrid Expert System for Computer-Aided Design of Ship Thruster Subsystems

    Publikacja

    The article presents an expert system supporting the design of ship's power subsystems, in particular the thruster subsystem. The proposed hybrid expert system uses the results of simulation tests as the additional source of knowledge. The results of system operation are collated in a report which can be used as part of ship design description. The work oriented on developing the expert system is the continuation of the research...

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  • COMPUTER-AIDED DESIGN OF ORGANOPHOSPHORUS INHIBITORS OF UREASE

    Based on the structure of the most potential inhibitor diamidophosphate, various novel groups of inhibitors were developed by knowledge-based design approach with covalent carbon-phosphorus or carbon-phosphorus-carbon bond to improve hydrolytic stability to inhibit the microbial ureases. Designed compounds were evaluated with 10 (LigScore1, LigScore2, PLP1, PLP2, JAIN, PMF, PMF04, LUDI_1, LUDI_2 and LUDI_3) different scoring functions...

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  • Design of M2M Communications Interfaces in Transport Systems

    Publikacja

    - Rok 2016

    In the paper the principle of M2M communications in transport systems is presented. The concept of M2M system architecture is considered. Characteristics of M2M communications for example data transmission, monitoring and other services for transport applications are presented. The problem of communications interfaces design for M2M applications is analysed. Next, the proposal of M2M communication interface for transport applications...

  • Design Philosophy Papers

    Czasopisma

    ISSN: 1448-7136

  • Journal of Design History

    Czasopisma

    ISSN: 0952-4649 , eISSN: 1741-7279

  • Harvard Design Magazine

    Czasopisma

    ISSN: 1093-4421

  • Design Discourse (The) (Japan)

    Czasopisma

    ISSN: 1349-9947

  • Journal of Urban design

    Czasopisma

    ISSN: 1357-4809 , eISSN: 1469-9664

  • COMPUTER-AIDED DESIGN

    Czasopisma

    ISSN: 0010-4485 , eISSN: 1879-2685

  • International Journal of Design

    Czasopisma

    ISSN: 1991-3761 , eISSN: 1994-036X

  • Journal of Interior Design

    Czasopisma

    ISSN: 1071-7641 , eISSN: 1939-1668

  • Bio-Design and Manufacturing

    Czasopisma

    ISSN: 2096-5524 , eISSN: 2522-8552

  • Advances in Computational Design

    Czasopisma

    ISSN: 2383-8477 , eISSN: 2466-0523

  • Environment Design Guide

    Czasopisma

    ISSN: 1442-5017

  • IEEE Design & Test

    Czasopisma

    ISSN: 2168-2356

  • Journal of Learning Design

    Czasopisma

    ISSN: 1832-8342

  • Information Design Journal

    Czasopisma

    ISSN: 0142-5471

  • Archives of Design Research

    Czasopisma

    ISSN: 1226-8046

  • Journal of Design Research

    Czasopisma

    ISSN: 1748-3050

  • Technology Architecture and Design

    Czasopisma

    ISSN: 2475-1448 , eISSN: 2475-143X

  • RESEARCH IN ENGINEERING DESIGN

    Czasopisma

    ISSN: 0934-9839 , eISSN: 1435-6066

  • New Design Ideas

    Czasopisma

    ISSN: 2522-4875 , eISSN: 2524-2148

  • Policy Design and Practice

    Czasopisma

    eISSN: 2574-1292

  • Journal of Organization Design

    Czasopisma

    eISSN: 2245-408X

  • Theatre and Performance Design

    Czasopisma

    ISSN: 2332-2551 , eISSN: 2332-2578

  • Review of Economic Design

    Czasopisma

    ISSN: 1434-4742 , eISSN: 1434-4750

  • JOURNAL OF ENGINEERING DESIGN

    Czasopisma

    ISSN: 0954-4828 , eISSN: 1466-1837

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

    Publikacja

    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....

  • Interior Design, Erasmus

    Kursy Online
    • K. Ludwiczak

    Celem kursu jest przybliżenie zagadnień związanych z projektowaniem wnętrz.Studenci pracować będą na własnych projektach domów jednorodzinnych, opracowanych w poprzednim semestrze.Zajęcia odbywają się w trybie konsultacji i krótkich wykładów.prowadzący: Kacper Ludwiczak / kacper.ludwiczak@pg.edu.pl  

  • Machine Design PG_00059691

    Kursy Online
    • J. Łubiński

  • Rural Design Lectures

    Kursy Online
    • P. Duch-Żebrowska
    • K. Zielonko-Jung

    The lectures are aiming to provide the students with the general understanding of the vernacular architecture, landscape, future, resilience and history.

  • Systems Software Design

    Kursy Online
    • A. Harasimiuk

  • System Software Design

    Kursy Online
    • A. Harasimiuk

  • What defines excellent lighting design for humans and animals?

    Publikacja
    • K. M. Zielińska

    - Rok 2009

    What defines excellent lighting design for humans and animals? The answer to the above question is more than com­plex. It is not enough nowadays to design a project to make it aesthetically pleasing. Nor is it sufficient to create nicely lit environments, or simply to achieve the light levels required by the lighting norms or stan­dards. With the new scientific research of the last few de­cades that relates directly or indirectly...

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  • CONCRETE MIX DESIGN USING SIMPLE EQUATIONS

    Publikacja

    - BAU Journal - Science and Technology - Rok 2020

    The behaviour of concrete, whether fresh or har dened, depends basically on the beha viour of its components and the r elationship between them, ther efore, obtaining a concr ete with cer tain pr operties depends fundamentally on the concr ete mix design. Concr ete mix design gener ally includes two main steps: 1-Selection of the main components suitable for the concr...

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  • Progress in module design for membrane distillation

    Publikacja
    • A. Ali
    • M. M. Agha Shirazi
    • L. Nthunya
    • R. Castro Munoz
    • N. Ismail
    • N. Tavajohi
    • G. Zaragoza
    • C. A. Quist-Jensen

    - DESALINATION - Rok 2024

    There have been tremendous advances in membrane distillation (MD) since the concept was introduced in 1961: new membrane designs and process configurations have emerged, and its commercial viability has been evaluated in several pilot-scale studies. However, its high energy consumption has hindered its commercialization. One of the most promising ways to overcome this obstacle is to develop more energy-efficient membrane modules....

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  • Relationship between album cover design and music genres.

    Publikacja

    The aim of the study is to find out whether there exists a relationship between typographic, compositional and coloristic elements of the music album cover design and music contained in the album. The research study involves basic statistical analysis of the manually extracted data coming from the worldwide album covers. The samples represent 34 different music genres, coming from nine countries from around the world. There are...

  • Design of septic tanks placed on cohesive soils

    Publikacja

    The paper presents a short review of literature with regard to design and erection of the reinforced concrete and concrete tanks. The authors investigated the underground septic tank with of 10 m3 capacity placed on cohesive soils. The authors compared the values of internal forces for soils in drained and undrained conditions with different geotechnical parameters: loamy sand of liquidity index IL = 0.1 and IL = 0.7 and clay with...

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  • Use of the AHP Method for Preference Determination in Yacht Design

    A sailing yacht is a human-centred product, the design of which revolves primarily around the wants and desires of the future owner. In most cases, these preferences are not measurable, such as a personal aesthetic feeling, or a need for comfort, speed, safety etc. The aims of this paper are to demonstrate that these preferences can be classified and represented numerically, and to show that they are correlated with the type of...

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  • Use of the AHP Method for Preference Determination in Yacht Design

    Publikacja

    A sailing yacht is a human-centred product, the design of which revolves primarily around the wants and desires of the future owner. In most cases, these preferences are not measurable, such as a personal aesthetic feeling, or a need for comfort, speed, safety etc. The aims of this paper are to demonstrate that these preferences can be classified and represented numerically, and to show that they are correlated with the type...

  • Wiktoria Wojnicz dr hab. inż.

    DSc in Mechanics (in the field of Biomechanics)  - Lodz Univeristy of Technology, 2019  PhD in Mechanics (in the field of Biomechanics)  - Lodz Univeristy of Technology, 2009 (with distinction)   Publikacje z listy MNiSW (2009 - ) Wojnicz W., Wittbrodt E., Analysis of muscles' behaviour. Part I. The computational model of muscle. Acta of Bioengineering and Biomechanics, Vol. 11, No.4, 2009, p. 15-21 Wojnicz W., Wittbrodt E., Analysis...

  • Towards Experience-Based Smart Product Design for Industry 4.0

    Publikacja

    - CYBERNETICS AND SYSTEMS - Rok 2019

    This paper presents the concept of smart virtual product development (SVPD) system capable of supporting industrial product development process. It enhances the decision making process during different stages and activities involved in product development i.e. product design, manufacturing, and its inspection planning. The enhancement is achieved by using the explicit knowledge of formal past decision events, which are captured,...

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  • On geometry parameterization for simulation-driven design closure of antenna structures

    Full-wave electromagnetic (EM) simulation tools have become ubiquitous in antenna design, especially final tuning of geometry parameters. From the reliability standpoint, the recommended realization of EM-driven design is through rigorous numerical optimization. It is a challenging endeavor with the major issues related to the high computational cost of the process, but also the necessity of handling several objectives and constraints...

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  • Design of horizontal axis wind and water turbines

    Publikacja

    - Rok 2016

    The basic hydrodynamic principles of horizontal axis turbines are presented. Computational methods based on vortex theory for design of such turbines and for calculation of their hydro or aerodynamic characteristics are described in detail. These methods are applicable both to wind and water turbines. The influence of detailed turbine geometry on its characteristics is presented. Several practical computational examples of different...

  • Extending transition curve in analytical design method

    Publikacja

    The paper presents the problem of extending the transitional curves, using for this purpose an analytical design method. The basis for the analysis of numerical calculations were carried out for a wide set of parameters characterizing the standard geometric system. We considered an importance of the size of radius of the circular arc and return angle of route on the obtained results after the formulation of appropriate theoretical...

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  • The value of less Light – Sustainable architectural lighting design

    Publikacja
    • K. M. Zielińska-Dąbkowska

    - Rok 2013

    Since its beginning, the art of external illumination has substantially influ-enced the creation and the perception of architecture and the night-time urban environment. In her lecture, the author examines and defines the significant interdisciplinary conditions related to architectural lighting design that have evolved over the years, starting from the first simple exterior lighting projects to the more modern, complex concepts...

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  • A structure and simulation-driven design of compact CPW-fed UWB antenna

    In this letter, a structure of a miniaturized ultra-wideband CPW-fed antenna and its design proce-dure are presented. The antenna is a modified version of the design previously proposed in the literature, with additional degrees of freedom introduced in order to improve the structure flexibility. The small size is achieved by executing a rigorous optimization procedure that consists of two stages: (i) smart random search carried...

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  • Fast Design Optimization of Waveguide Filters Applying Shape Deformation Techniques

    Publikacja

    - Rok 2022

    This paper presents an efficient design of microwave filters by means of geometry optimization using shape deformation techniques. This design procedure allows for modelling complex 3D geometries which can be fabricated by additive manufacturing (AM). Shape deforming operations are based on radial basis function (RBF) interpolation and are integrated into an electromagnetic field simulator based on the 3D finiteelement method (FEM)....

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  • Centralized and Distributed Structures of Intelligent Systems for Aided Design of Ship Automation

    A design process and accepted solutions made during this process, often base on non-formalized knowledge, obtained from designer (expert) intuition and practice. There are no formalized rules assuring the correctness of design solutions. The analysis of design process of ship automation, including ship power system, shows that this process can be supported by application of the artificial intelligence elements. The article presents...

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  • Novel structure and design of compact UWB slot antenna

    Publikacja

    In this paper, a novel structure of a compact UWB slot antenna is presented along with a simulation-driven design optimization algorithm for adjusting geometry parameters of the device. Our primary objective is to obtain small footprint of the structure while maintaining its acceptable electrical performance. It is achieved by introducing sufficiently large number of geometry degrees of freedom, including increased number of parameterized...

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  • FIR Filter Design Using Distributed Maximal Flatness Method

    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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  • Accurate simulation-driven modeling and design optimization of compact microwave structures

    Publikacja

    Cost efficient design optimization of microwave structures requires availability of fast yet reliable replacement models so that multiple evaluations of the structure at hand can be executed in reasonable timeframe. Direct utilization of full-wave electromagnetic (EM) simulations is often prohibitive. On the other hand, accurate data-driven modeling normally requires a very large number of training points and it is virtually infeasible...

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  • Design of radio communication systems for unmanned transport applications

    In the paper the principle of OFDMA-based radio communication systems design for unmanned transport applications is presented. The concept of system radio interface is analysed and its basic parameters proposal are considered. In the last part of the paper some air interface characteristics useful for optimization of throughput and system capacity are considered.

  • Equivalent temperature for design of airport pavements using mechanistic-empirical methods

    Publikacja

    The paper presents implementation of equivalent temperature for design of airport asphalt pavements. The calculation methods of equivalent temperature: the Shell method, the French method and method that use the Asphalt Institute fatique criteria were presented. An example of calculations of equivalent temperature for Gdansk Airport was introduced and discussed. It was shown that methods of calculation of equivalent temperature...

  • Novel structure and design of enhanced-bandwidth hybrid quadrature patch coupler

    A novel structure and design optimization procedure of an enhanced-bandwidth hybrid quadrature patch coupler is proposed. Improved performance of the circuit has been obtained by parameterizing the coupler sections using splines, which introduces additional degrees of freedom. Due to computational complexity of the parameter adjustment problem, a sequential design procedure is applied. In each iteration, a selected number of spline...

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  • Urban Design Project III 2023/24

    Kursy Online
    • J. Martyniuk-Pęczek
    • K. van Soelen

    # 15-minute CITY ... Gdynia MaŁy Kack The topic of the course will introduce the issues of building a neighborhood identity in the form of densification development.  The interdisciplinary team of instructors will introduce the issues of shaping urban structures based on contemporary trends in urban design.

  • Stages of project implementation based on design-thinking concept

    Publikacja

    In this chapter there were presented basic aspects of project management focused on an improvement of the final effect. Firstly the project ter was defined including a discusion of its core attributes and determinants of its management procedure. Next design-thinking concept was introduced as an approach to use in project management for achieving maximum consumer satissfaction.

  • Meta-Design and the Triple Learning Organization in Architectural Design Process

    Publikacja

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  • RESIDENTIAL FUNCTION IN MULTI-CRITERIA MULTIFUNCTIONAL BUILDING SYSTEM DESIGN PROCESS

    Publikacja

    The paper presents the multi-criteria approach in the design process of residential structure as a part of a multifunctional building system. The purpose of work was to broaden the field of multifunctional building system design process. Background for the presented work is to define the direction of architectural growth of the modern city center area where actually are built complex and large capacity structures with a great impact...

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  • Smart Cities System Design Method Based on Case Based Reasoning

    Publikacja

    The objective of this paper is to present the results of research carried out to develop a design method for Smart Cities systems. The method is based on the analysis of design cases of Smart Cities systems in cities, the selection of the city appropriate to the requirements for implementation and application. The Case Based Reasoning method was used to develop the proposed design methodology, along with mechanisms of the conversion...

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  • Smart Garden Suburb_Urban design II 2022/23

    Kursy Online
    • G. Rembarz
    • R. Ozdemir
    • B. Bou Kalfouni

    In the twenty-first century the idea of living in a perfect place combines the need for beauty&identity of the place with the ecology. Metropolises around the world are waiting for concepts that will expose the landscape values and give life in the suburbs high quality including energy efficiency and climate neutrality. A new concepts of are being discussed. Join this trend and look for solutions which merge expression of beauty...

  • Analysis of the design development of the sliding table saw spindles

    Publikacja

    - Mechanik - Rok 2017

    Producers of sliding table saws constantly strive for improvement in sawing accuracy. One of the method is an upswing in a spindle behavior, since, it affects to a large degree sawing effects. The design development of sliding table saw spindles during the last quarter-century is presented. The spindle system of the modernized spindle of the sawing machine Fx550 is described.

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  • Research by design w architekturze

    Publikacja

    - Rok 2013

    W książce autor dowodzi, że w twórczym procesie powstawania dzieła architektonicznego, czyli obiektu zaprojektowanego a następnie zbudowanego, oprócz rozważań natury teoretycznej pierwszorzędną rolę odgrywają doświadczenia zdobyte na drodze praktycznego stosowania często na wpół intuicyjnych rozwiązań, mających dopiero w przyszłości stanowić podwalinę architektonicznych teorii. Obserwowana dzisiaj narastająca inwazja intuicji,...

  • Designing of Parking Spaces on Parking Taking into Account the Parameters of Design Vehicles

    Publikacja

    - Computation - Rok 2020

    Nowadays, in all cities, there is an acute problem of a lack of parking spaces. The number of vehicles is constantly increasing not only in big cities and megacities, but also in small towns of the country, and there are not enough parking places—the pace of solving the problem is several times slower than the growth rate of transport among citizens. The paper is dedicated to the determination of an optimal size of a parking place...

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  • A Conformal Circularly Polarized Series-Fed Microstrip Antenna Array Design

    Publikacja

    A conformal circularly polarized series-fed microstrip array design for broadside radiation is presented. The array aperture under design is conformal to a cylindrical surface of a given radius. The approach we present primarily addresses focusing of the circularly polarized major lobe of the conformal array by proper dimensioning of the aperture spacings. The proposed analytical models yield the values of the element spacings...

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  • Bayesian Optimization for solving high-frequency passive component design problems

    In this paper, the performance of the Bayesian Optimization (BO) technique applied to various problems of microwave engineering is studied. Bayesian optimization is a novel, non-deterministic, global optimization scheme that uses machine learning to solve complex optimization problems. However, each new optimization scheme needs to be evaluated to find its best application niche, as there is no universal technique that suits all...

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  • High-Level Model for the Design of KPIs for Smart Cities Systems

    Publikacja

    The main goal of the paper is to build a high-level model for the design of KPIs. Currently, the development and processes of cities have been checked by KPI indicators. The authors realized that there is a limited usability of KPIs for both the users and IT specialists who are preparing them. Another observation was that the process of the implementation of Smart Cities systems is very complicated. Due to this the concept of a...

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  • Rapid antenna design optimization using shape-preserving response prediction

    An approach to rapid optimization of antennas using the shape-preserving response-prediction (SPRP) technique and coarsediscretization electromagnetic (EM) simulations (as a low-fidelity model) is presented. SPRP allows us to estimate the response of the high-fidelity EM antenna model, e.g., its reflection coefficient versus frequency, using the properly selected set of so-called characteristic points of the low-fidelity model...

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  • DESIGNING OF PARKING SPACES TAKING INTO ACCOUNT THE PARAMETERS OF DESIGN VEHICLES IN RUSSIA

    Publikacja

    - Communications - Scientific Letters of the University of Zilina - Rok 2020

    Nowadays, in all the cities, there is an acute problem of a lack of parking spaces. The number of vehicles are becoming more and more larger, not only in megacities, but in small cities of the country, as well and there are no more parking places - the pace of solving the problem is several times slower than the rate of the transport growth among the citizens. The article is dedicated to the determination of the optimum sizes parking...

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  • The Design of Cavity Resonators and Microwave Filters Applying Shape Deformation Techniques

    This article introduces shape deformation as a new approach to the computer-aided design (CAD) of high-frequency components. We show that geometry deformation opens up new design possibilities and offers additional degrees of freedom in the 3-D modeling of microwave structures. Such design flexibility is highly desirable if the full potential of additive manufacturing (AM) is to be exploited in the fabrication of RF and microwave...

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  • CAE in design calculations

    Kursy Online
    • G. Rotta

  • CAE in Design Calculations

    Kursy Online
    • G. Rotta

  • Theory of Urban Design

    Kursy Online
    • M. Delso Páez
    • J. Breś
    • K. Krośnicka

    The aim of the course is to understand the complexity of the process of functioning and development of cities, including: -city hierarchical spatial  models (morphology) and functional structure on models (the hierarchy of services and public spaces) -networks and systems that make up the city (environmental system, technical and social infrastructure) -role and importance of the district/neighbourhood in the structure of the...

  • Design for Six Sigma

    Kursy Online
    • Z. Celmerowski

  • Design and implementation of GEPON architecture in laboratory testbed

    Publikacja

    This paper presents a proposition of GEPON architecture for the didactic purpose. The GEPON architecture is implemented in access networks laboratory testbed. The paper includes a brief description of GEPON standardization, a description of laboratory GEPON equipment architecture and a short presentation of proposed laboratory exercises. The exemplary performance results are included.The proposition of GEPON architecture testbed...

  • Variable Fractional Delay Filter Design Using a Symmetric Window

    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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  • Cost-Efficient Design Methodology for Compact Rat-Race Couplers

    In this article, a reliable and low-cost design methodology for simulation-driven optimization of miniaturized rat-race couplers (RRCs) is presented. We exploit a two-stage design approach, where a composite structure (a basic building block of the RRC structure) is first optimized using a pattern search algorithm, and, subsequently, the entire coupler is tuned by means of surrogate-based optimization (SBO) procedure. SBO is executed...

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

    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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  • Simple design criteria and efficiency of hydrodynamic vortex separators

    Vortex separators are locally applied for waste water treatment in different systems - from storm waste water sewerage to water treatment in fish ponds. However, the methods for separator design presented in the literature are questionable. The paper presents two simple and functional criteria that were employed to construct a laboratory test stand. The test results gave positive feed back on the efficiency of vortex separators.

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  • Response Feature Technology for High-Frequency Electronics. Optimization, Modeling, and Design Automation

    Publikacja

    This book discusses response feature technology and its applications to modeling, optimization, and computer-aided design of high-frequency structures including antenna and microwave components. By exploring the specific structure of the system outputs, feature-based approaches facilitate simulation-driven design procedures, both in terms of improving their computational efficiency and reliability. These benefits are associated...

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  • Cost-efficient design optimization of compact patch antennas with improved bandwidth

    In this letter, a surrogate-assisted optimization procedure for fast design of compact patch antennas with enhanced bandwidth is presented. The procedure aims at addressing a fundamental challenge of the design of antenna structures with complex topologies, which is simultaneous adjustment of numerous geometry parameters. The latter is necessary in order to find a truly optimum design and cannot be executed-at the level of high-fidelity...

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  • Smart experience engineering to support collaborative design problems based on constraints modelling

    Publikacja

    Engineering design is a knowledge intensive process. Experts' experiences from different product life-cycle stages play a key role in problem solving during design decision making by linking up knowledge to find better solutions for a specific design problem. Different approaches have been used to support Collaborative and Concurrent Product Design, such as Constraint Satisfaction Problem (CSP) modelling. Additionally, due to the...

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  • The bridge over Regalia River in Szczecin - design and construction.

    Publikacja

    - Rok 2004

    Nowoclowa Route is the largest projekt in Szczecin, that consists of 11 km of roads 3,3 km bridges and viaducts, including three parallel bridges across Regalica River (the east arm of Odra River), 535 m long, with the spans: 59+90+90+116+116+64m. The bridge structure consist of two steel plate girders composite with reinforced concrete deck slab. The design and the construction of the bridge are described in the paper.

  • Projektowanie usług z wykorzystaniem koncepcji design - thinking

    W niniejszym opracowaniu autorzy zaprezentowali uwarunkowania dotyczące projektowania usług z wykorzystaniem koncepcji design-thinking. W tym celu przybliżono specyficzne cechy działalności usługowej wraz z podstawami realizacji przedsiewzięć opartych na myśleniu projektowym. Wskazano także podstawowe korzyści jakie wynikają z wdrożenia metody, w szczególności aspekt kreatywnego myślenia generującego nowe usługi dla odbiorców.

  • Design and material selection for a patient transport device in field hospitals

    ACKGROUND: A major cause of patient and hospital worker injuries occurs transferring patients between two planes. The main aim of this paper was to propose a design of patient’s lift and transfer apparatus for use in field hospitals. The assumption was to design lightweight, durable and ergonomic device using innovative material. The authors concentrated on partial elimination of manual lifting in order to device could work both...

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  • Design and implementation principles of FIReWORK ONLINE - the VHDL autogenerator for hardware structures

    Publikacja

    - Rok 2013

    The paper presents an aspects of remote autogeneration of hardware structures. The solution is an online application, that is running on the server side and allows to design a particular filters and other selected hardware and generate its structure in the form of VHDL, dedicated to FPGA design environments. The paper also addresses the problem of parameterization of algorithms used to generate the hardware structures and current...

  • Optimal Design of Transmitarray Antennas via Low-Cost Surrogate Modelling

    Publikacja

    - Scientific Reports - Rok 2023

    Over the recent years, reflectarrays and transmitarrays have been drawing a considerable attention due to their attractive features, including a possibility of realizing high gain and pencil-like radiation patterns without the employment of complex feeding networks. Among the two, transmitarrays seem to be superior over reflectarrays in terms of achieving high radiation efficiency without the feed blockage. Notwithstanding, the...

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  • Multi-fidelity robust aerodynamic design optimization under mixed uncertainty

    Publikacja
    • H. Shah
    • S. Hosder
    • S. Kozieł
    • Y. Tesfahunegn
    • L. Leifsson

    - AEROSPACE SCIENCE AND TECHNOLOGY - Rok 2015

    The objective of this paper is to present a robust optimization algorithm for computationally efficient airfoil design under mixed (inherent and epistemic) uncertainty using a multi-fidelity approach. This algorithm exploits stochastic expansions derived from the Non-Intrusive Polynomial Chaos (NIPC) technique to create surrogate models utilized in the optimization process. A combined NIPC expansion approach is used, where both...

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  • Lighting Design for the 21st Century Applied research in lighting practice

    For those who are unfamiliar with research, it’s important to know there are two categories. Fundamental (or basic) research and applied research. Basic research often discusses scientific ideas/theories, whereas, applied research explores testing these ideas in practice to develop technology or techniques. It’s applied research which most interests lighting practitioners. Great lighting design that creates a pleasant and beneficial...

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  • Towards the value-based design of on-line services

    Publikacja

    The paper identifies economic factors shaping customer bahaviour in on-line services in two interrelated dimensions; (1) economic needs and requirements, relevant to expected benefits and values perceived by customers; (2) technical components, allowing technical realization of on-line services. Technical components were cathegorized into four groups, creating so-called VIPR model: Visual, Interactive, Process and Relationship-relevant...