Search results for: ANTENNA DESIGN, BAYESIAN OPTIMIZATION, EM-DRIVEN DESIGN, LEARNING BY EXAMPLES, REFLECTARRAY, SURROGATE MODELING, UNIT CELL - Bridge of Knowledge

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Search results for: ANTENNA DESIGN, BAYESIAN OPTIMIZATION, EM-DRIVEN DESIGN, LEARNING BY EXAMPLES, REFLECTARRAY, SURROGATE MODELING, UNIT CELL

Search results for: ANTENNA DESIGN, BAYESIAN OPTIMIZATION, EM-DRIVEN DESIGN, LEARNING BY EXAMPLES, REFLECTARRAY, SURROGATE MODELING, UNIT CELL

  • Policy Design and Practice

    Journals

    eISSN: 2574-1292

  • Journal of Organization Design

    Journals

    eISSN: 2245-408X

  • Theatre and Performance Design

    Journals

    ISSN: 2332-2551 , eISSN: 2332-2578

  • Review of Economic Design

    Journals

    ISSN: 1434-4742 , eISSN: 1434-4750

  • JOURNAL OF ENGINEERING DESIGN

    Journals

    ISSN: 0954-4828 , eISSN: 1466-1837

  • Novel structure and size-reduction-oriented design of microstrip compact rat-race coupler

    Publication

    In this paper, a novel structure of a miniaturized microstrip rat-race coupler has been proposed. Surrogate-based optimization procedures are applied to explicitly reduce the coupler size while maintaining equal power split at the operating frequency of 1 GHz and sufficient bandwidth for return loss and isolation characteristics. The optimization is performed using the objective function with four penalty components. The footprint...

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  • CONCRETE MIX DESIGN USING SIMPLE EQUATIONS

    Publication

    - BAU Journal - Science and Technology - Year 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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  • What defines excellent lighting design for humans and animals?

    Publication
    • K. M. Zielińska

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

    Publication

    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

    e-Learning Courses
    • 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

    e-Learning Courses
    • J. Łubiński

  • Rural Design Lectures

    e-Learning Courses
    • 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

    e-Learning Courses
    • A. Harasimiuk

  • System Software Design

    e-Learning Courses
    • A. Harasimiuk

  • Progress in module design for membrane distillation

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

    - DESALINATION - Year 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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  • Expedited Optimization of Passive Microwave Devices Using Gradient Search and Principal Directions

    Publication

    - Year 2022

    Over the recent years, utilization of numerical optimization techniques has become ubiquitous in the design of high-frequency systems, including microwave passive components. The primary reason is that the circuits become increasingly complex to meet ever growing performance demands concerning their electrical performance, additional functionalities, as well as miniaturization. Nonetheless, as reliable evaluation of microwave device...

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  • Design of septic tanks placed on cohesive soils

    Publication

    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

    Publication

    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...

  • 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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  • Towards Experience-Based Smart Product Design for Industry 4.0

    Publication

    - CYBERNETICS AND SYSTEMS - Year 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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  • Extending transition curve in analytical design method

    Publication

    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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  • 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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  • Reliable Microwave Modeling By Means of Variable-Fidelity Response Features

    In this work, methodologies for low-cost and reliable microwave modeling are presented using variable-fidelity response features. The two key components of our approach are: (i) a realization of the modeling process at the level of suitably selected feature points of the responses (e.g., S-parameters vs. frequency) of the structure at hand, and (ii) the exploitation of variable-fidelity EM simulation data, also for the response...

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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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  • Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures 2019

    Publication

    Designing a concrete mix is a process of synthesizing many components, it is not a simple process and requires extensive technical knowledge. The design process itself focuses on obtaining the required strength of concrete. Very often designing a concrete mix takes into account the need to maintain the proper water-demand and frost-resistance features. The parameters that influence the concrete class most significantly are the...

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  • Millimeter Wave Negative Refractive Index Metamaterial Antenna Array

    Publication

    In this paper, a novel negative refractive index metamaterial (NIM) is developed and characterized. The proposed metamaterial exhibits negative effective permittivity (εeffe) and negative effective permeability (µeffe) at millimeter wave frequency of 28GHz. This attractive feature is utilized to enhance the gain of a microstrip patch antenna (MPA). Two thin layers of 5  5 subwavelength unit cell array of NIM are placed above a...

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

    Publication

    - Year 2014

    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...

  • Stages of project implementation based on design-thinking concept

    Publication

    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.

  • THE ROLE OF INFERENCE IN MOBILE MEDICAL APPLICATION DESIGN

    Publication

    - Year 2021

    In the early 21st century, artificial intelligence began to be used to process medical information. However, before this happened, predictive models used in healthcare could only consider a limited number of variables, and only in properly structured and organised medical data. Today, advanced tools based on machine learning techniques - which, using artificial neural networks, can explore extremely complex relationships - and...

  • Urban Design Project III 2023/24

    e-Learning Courses
    • J. Martyniuk-Pęczek
    • M. Ahmadi
    • 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.

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

    Publication

    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

    Publication

    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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  • Research by design w architekturze

    Publication

    - Year 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,...

  • Expedited constrained multi-objective aerodynamic shape optimization by means of physics-based surrogates

    Publication

    - APPLIED MATHEMATICAL MODELLING - Year 2016

    In the paper, computationally efficient constrained multi-objective design optimization of transonic airfoil profiles is considered. Our methodology focuses on fixed-lift design aimed at finding the best possible trade-offs between the two objectives: minimization of the drag coefficient and maximization of the pitching moment. The algorithm presented here exploits the surrogate-based optimization principle, variable-fidelity computational...

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

    Publication

    - Mechanik - Year 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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  • Structural Design and Mechanics I 2023/2024

    e-Learning Courses
    • T. Zybała

    Learning about the functioning of bar systems and preparing their static schemes, solving statically determinate bar systems (beams, frames, trusses).

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

    Publication

    - Computation - Year 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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  • Simulation of fluid structure interaction in a novel design of high pressure axial piston hydraulic pump

    Publication

    - Archive of Mechanical Engineering - Year 2013

    A novel type of an axial, piston-driven high pressure hydraulic pump with variable capacity marks a significant improvement in the area of the hydraulic machinery design. Total discharge from hydrostatic forces eliminates a need for a servomechanism, thus simplifying operation, reducing weight and introducing the possibility of the pump displacement control by computer. PWK-type pumps, invented in the Gdansk University of Technology,...

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  • On Bayesian Tracking and Prediction of Radar Cross Section

    We consider the problem of Bayesian tracking of radar cross section. The adopted observation model employs the gamma family, which covers all Swerling cases in a unified framework. State dynamics are modeled using a nonstationary autoregressive gamma process. The principal component of the proposed solution is a nontrivial gamma approximation, applied during the time update recursion. The superior performance of the proposed approach...

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  • Design advantages and analysis of a novel five-phase doubly-fed induction generator

    Purpose – The purpose of this paper is to provide an analysis of the performance of a new five-phase doubly fed induction generator (DFIG). Design/methodology/approach – This paper presents the results of a research work related to fivephase DFIG framing, including the development of an analytical model, FEM analysis as well as the results of laboratory tests of the prototype. The proposed behavioral level analytical model is based...

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  • Software-Defined NB-IoT Uplink Framework - The Design, Implementation and Use Cases

    In the radiocommunication area, we may observe a rapid growth of new technology, such as 5G. Moreover, all the newly introduced radio interfaces, e.g., narrowband Internet of Things (NB-IoT), are strongly dependent on the software. Hence, the radiocommunication software development and optimization, as well as the 3GPP technical specification, should be introduced at the academic level of education. In this paper, a software-defined...

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

    Publication

    - Year 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....

  • Compact antenna array comprising fractal-shaped microstripradiators

    A design method of antenna array consisting of eight microstrip patches modified with Sierpinski fractal curves has been presented andexperimentally validated in this paper. Method proposed has enabled the achievement of considerable miniaturization of array length (26%),together with multi-band behavior of the antenna, which proves the attractiveness of presented design methodology and its ability to be implemented in more complex...

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  • Design and implementation of GEPON architecture in laboratory testbed

    Publication

    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...

  • Design and Experiments of a Piezoelectric Motor Using Three Rotating Mode Actuators

    This paper represents a numerical and experimental investigation of the multicell piezoelectric motor. The proposed design consists of three individual cells that are integrated into the stator, double rotor, and a preload system combined into a symmetrical structure of the motor. Each of the cells is characterized by a traveling wave and rotating mode motor. A finite element numerical analysis is carried out to obtain optimal...

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  • 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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  • 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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  • CAE in design calculations

    e-Learning Courses
    • G. Rotta

  • CAE in Design Calculations

    e-Learning Courses
    • G. Rotta

  • Theory of Urban Design

    e-Learning Courses
    • 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...