Wyniki wyszukiwania dla: COMPACT POWER DIVIDER, E-PLANE GROOVE GAP WAVEGUIDE, MMWAVE, RIDGE GAP WAVEGUIDE, WIDEBAND DESIGN.

• Efficient Surrogate Modeling and Design Optimization of Compact Integrated On-Chip Inductors Based on Multi-Fidelity EM Simulation Models

  Publikacja

  • P. Kurgan

  - Micromachines - Rok 2021

  High-performance and small-size on-chip inductors play a critical role in contemporary radio-frequency integrated circuits. This work presents a reliable surrogate modeling technique combining low-fidelity EM simulation models, response surface approximations based on kriging interpolation, and space mapping technology. The reported method is useful for the development of broadband and highly accurate data-driven models of integrated...

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• Nuclear Power

  Kursy Online

  • A. Kaczmarek-Kacprzak

  Nuclear Power is a course for student II degree in full-time studies at Chemistry Faculty, majoring in Green Technology and Monitoring.

• Side Effects of National Immunization Program: E-Governance Support Toward Elders' Digital Inclusion

  Publikacja

  • M. Ciesielska
  • N. Rizun
  • A. Baj-Rogowska

  - Rok 2022

  In response to the coronavirus pandemic, the European Union (EU) governments develop policies to regulate exclusive health protection actions that consider societal needs with the emphasis on elders. Given that the EU vaccination strategy uses a centralized ICT-based approach, there is little guidance on how seniors are included in national immunization programs (NIP). In this paper, we addressed a knowledge gap of the side effects...

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• Design analysis of combined gas-vapour micro power plant with 30 kW air turbine

  Publikacja

  • M. Piwowarski
  • K. Kosowski

  - POLISH JOURNAL OF ENVIRONMENTAL STUDIES - Rok 2014

  The article presents basic results of the design analysis of a combined gas-vapour micro power plant with a waste-heat boiler without exhaust reheat, working in the vapour section in the Organic Rankine Cycle (ORC) system. The analysis concerned working media most frequently used in those types of power plants and planned to be used in future. The object of the analysis was a micro power plant with a 30 kW gas (air) turbine for...

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• Design analysis of combined gas-vapour micro power plant with 30 kW air turbine

  Publikacja

  • M. Piwowarski
  • K. Kosowski

  - Rok 2013

  The article presents basic results of the design analysis of a combined gas-vapour micro power plant with a waste-heat boiler without exhaust reheat, working in the vapour section in the Organic Rankine Cycle (ORC) system. The analysis concerned working media most frequently used in those types of power plants and planned to be used in future. The object of the analysis was a micro power plant with a 30 kW gas (air) turbine for...

• The influence of rotor-stator axial gap on the aerodynamic forces generatedin the shroud clearance of a turbine stage. Part I: Pressure field

  Publikacja

  • M. Piwowarski
  • K. Kosowski

  - Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka - Rok 2002

  Przedstawiono wyniki badań doświadczalnych wpływu zmiany luzu osiowego na rozkład ciśnienia w uszczelnieniu nadbandażowym stopnia powietrznej turbiny modelowej. Wykazano, że w przypadku uszczelnienia promieniowego zmiana luzu osiowego nieznacznie zmienia rozkład ciśnienia w szczelinie nadbandażowej w porównaniu ze zmianą mimośrodowości czy skośnego ustawienia osi wirnika względem osi korpusu.

• The influence of rotor-stator axial gap on the aerodynamic forces generatedin the shroud clearance of a turbine stage. Part II: Forces and moments

  Publikacja

  • M. Piwowarski
  • K. Kosowski

  - Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka - Rok 2002

  Przedstawiono wyniki badań doświadczalnych wpływu zmiany luzu osiowego na wymuszenia aerodynamiczne powstające w uszczelnieniu nadbandażowym stopnia powietrznej turbiny modelowej. Wykazano, że w przypadku uszczelnienia promieniowego zmiana luzu osiowego odgrywa niewielką rolę w generowaniu sił i momentów aerodynamicznych w szczelinie nadbandażowej w porównaniu ze zmianą mimośrodowości czy skośnego ustawienia osi wirnika względem...

• Wideband Modeling of DC-DC Buck Converter with GaN Transistors

  Publikacja

  • P. Musznicki
  • P. Derkacz
  • P. Chrzan

  - ENERGIES - Rok 2021

  The general wideband modeling method of the power converter is presented on the example of DC-DC buck converter with GaN High Electron Mobility Transistors (HEMT). The models of all basic and parasitic components are briefly described. The two methods of Printed Circuit Board (PCB) layout parameter extraction are presented. The results of simulation in Saber@Sketch simulation software and measurements are compared. Next, the model...

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• Design and optimization of a novel miniaturized low-profile circularly polarized wide-slot antenna

  Publikacja

  • U. Ullah
  • S. Kozieł

  - JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS - Rok 2018

  This paper presents a novel structure of a compact circularly polarized (CP) antenna. CP is obtained using a parasitic quasi-rectangular strip placed coplanar to the feedline. A ground plane perturbation combined with the asymmetric geometry of the coplanar waveguide ground planes is utilized to excite additional CP modes. All antenna dimensions are rigorously optimized to achieve the best possible performance in terms of the impedance...

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

  Publikacja

  • S. Kozieł
  • A. Bekasiewicz

  - Rok 2016

  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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• Novel Versatile Topologies and Design Optimization of Wide-Bandstop Frequency Selective Surfaces for X-Band, Ku-Band and Millimeter-Wave Applications

  Publikacja

  • R. Aziz
  • S. Kozieł
  • L. Leifsson
  • S. Szczepański

  - Scientific Reports - Rok 2023

  Novel designs of frequency selective surface (FSS) are presented for wideband applications in X, Ku and mmWave (millimeter Wave) bands. Two identical metallic layers of FSS are imprinted on both sides of the RO4003 substrate. The geometry parameters are optimized to maximize the bandstop at the specified in-band maximum transmission level of –10 dB; satisfaction of the latter condition is enforced through appropriate formulation...

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• Implicit Space Mapping for Variable-Fidelity EM-Driven Design of Compact Circuits

  Publikacja

  • S. Kozieł
  • A. Bekasiewicz

  - IEEE Antennas and Wireless Propagation Letters - Rok 2018

  Space mapping (SM) belongs to the most successful surrogate-based optimization (SBO) methods in microwave engineering. Among available SM variations, implicit SM (ISM) is particularly attractive due to its simplicity and separation of extractable surrogate model parameters and design variables of the circuit/system at hand. Unlike other SM approaches, ISM exploits a set of preassigned parameters to align the surrogate with the...

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• Compact High Efficiency and Zero-Emission Gas-Fired Power Plant with Oxy-Combustion and Carbon Capture

  Publikacja

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

  - ENERGIES - Rok 2022

  Reduction of greenhouse gases emissions is a key challenge for the power generation industry, requiring the implementation of new designs and methods of electricity generation. This article presents a design solution for a novel thermodynamic cycle with two new devices—namely, a wet combustion chamber and a spray-ejector condenser. In the proposed cycle, high temperature occurs in the combustion chamber because of fuel combustion...

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• Explicit Size-Reduction-Oriented Design of a Compact Microstrip Rat-Race Coupler Using Surrogate-Based Optimization Methods

  Publikacja

  • S. Kozieł
  • A. Bekasiewicz
  • L. Leifsson
  • X. Du
  • Y. Tesfahunegn

  - Rok 2018

  In this paper, an explicit size reduction of a compact rat-race coupler implemented in a microstrip technology is considered. The coupler circuit features a simple topology with a densely arranged layout that exploits a combination of high- and low-impedance transmission line sections. All relevant dimensions of the structure are simultaneously optimized in order to explicitly reduce the coupler size while maintaining equal power...

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• The realization of ASON/GMPLS control plane

  Publikacja

  • S. Kaczmarek
  • M. Młynarczuk
  • M. Waldman

  - Rok 2010

  ASON (Automatic Switched Optical Network) is a concept of optical network recommended in G.8080/Y.1304 by ITU-T. Control Plane of this network could be based on GMPLS (Generalized Multi-Protocol Label Switching) protocols like RSVP-TE, OSPF-TE, LMP. This solution is named ASON/GMPLS. In this chapter we present the control plane problems and proposes ASON/GMPLS network realization that are tested on testbed consists of three and...

• Roland Ryndzionek dr inż.

  Osoby

  Katedra Energoelektroniki i Maszyn Elektrycznych

  I received the M.Sc. degree in Electrical Engineering from Gdańsk University of Technology (Gdańsk Tech), Gdańsk, Poland, in 2010, the M.Sc. degree in Electrical Engineering from INP ENSEEIHT, Toulouse, France, in 2012, and the Ph.D. degree in Electrical Engineering from Gdańsk Tech and INP, in 2015. From 2015 to 2017. I was a postdoctoral research engineer at the SuperGrid Institute Lyon, France. Since 2017, I have been working...

• Inverse and forward surrogate models for expedited design optimization of unequal-power-split patch couplers

  Publikacja

  • S. Kozieł
  • A. Bekasiewicz

  - Metrology and Measurement Systems - Rok 2019

  In the paper, a procedure for precise and expedited design optimization of unequal power split patchcouplers is proposed. Our methodology aims at identifying the coupler dimensions that correspond to thecircuit operating at the requested frequency and featuring a required power split. At the same time, thedesign process is supposed to be computationally efficient. The proposed methodology involves two typesof auxiliary models (surrogates):...

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• Accurate design of pseudoelliptic inline SIW filters with frequency-dependent couplings

  Publikacja

  • A. Jędrzejewski
  • Ł. Szydłowski
  • M. Mrozowski

  - Rok 2014

  This paper presents an accurate synthesis method for inline SIW (Substrate Integrated Waveguide) generalized Chebyshev bandpass filters with frequency-dependent couplings. The technique is based on the synthesis of a coupling matrix that takes into account the impedance of the frequency-dependent stub. Thus, a loading effect compensation in adjacent resonators (via resonant frequency adjustment) and coupling elements (via coupling-value...

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• Michał Michna dr hab. inż.

  Osoby

  Katedra Energoelektroniki i Maszyn Elektrycznych

  Jest absolwentem Wydziału Elektrycznego Politechniki Gdańskiej (1998). W 2004 r. uzyskał stopień doktora. Od 2004 r. zatrudniony w Katedrze Energoelektroniki i Maszyn Elektrycznych Politechniki Gdańskiej (asystent, adiunkt, starszy wykładowca). W latach 2010-2015 zastępca kierownik katedry. Jego zainteresowania naukowe i dydaktyczne obejmują szerokie spektrum zagadnień związanych z projektowanie, modelowanie i diagnostyką maszyn...

• Efficient Multi-Fidelity Design Optimization of Microwave Filters Using Adjoint Sensitivity

  Publikacja

  • A. Bekasiewicz
  • S. Kozieł

  - INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING - Rok 2015

  A simple and robust algorithm for computationally efficient design optimiza-tion of microwave filters is presented. Our approach exploits a trust-region (TR)-based algorithm that utilizes linear approximation of the filter response obtained using adjoint sensitivity. The algorithm is sequentially executed on a family of electromagnetic (EM)-simulated models of different fidelities, starting from a coarse-discretization one, and...

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• Design and evaluation of a base module of active power electronic transformer

  Publikacja

  • I. Roasto
  • V. Minambres-Marcos
  • E. Romero-Cadaval
  • R. Strzelecki

  - Rok 2015

  This paper presents an active power electronic transformer (APET) based on modular structure. The proposed three phase APET consists of at least three base modules (BM). The input/output stage of the BM is based on half-bridge sub modules. The isolation stage includes a medium frequency transformer and is realized as a dual half-bridge. The paper describes construction process and explains the control strategy. The theoretical...

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• A general theory for anisotropic Kirchhoff–Love shells with in-plane bending of embedded fibers

  Publikacja

  • T. X. Duong
  • V. N. Khiêm
  • M. Itskov
  • R. Sauer

  - MATHEMATICS AND MECHANICS OF SOLIDS - Rok 2022

  This work presents a generalized Kirchhoff–Love shell theory that can explicitly capture fiber-induced anisotropy not only in stretching and out-of-plane bending, but also in in-plane bending. This setup is particularly suitable for heterogeneous and fibrous materials such as textiles, biomaterials, composites and pantographic structures. The presented theory is a direct extension of classical Kirchhoff–Love shell theory to incorporate...

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• Computationally efficient two-objective optimization of compact microwave couplers through corrected domain patching

  Publikacja

  • S. Kozieł
  • A. Bekasiewicz

  - Metrology and Measurement Systems - Rok 2018

  Finding an acceptable compromise between various objectives is a necessity in the design of contemporary microwave components and circuits. A primary reason is that most objectives are at least partially conflicting. For compact microwave structures, the design trade-offs are normally related to the circuit size and its electrical performance. In order to obtain comprehensive information about the best possible trade-offs, multi-objective...

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• Model of control plane of ASON/GMPLS network

  Publikacja

  • S. Kaczmarek
  • M. Młynarczuk

  - Zeszyty Naukowe Wydziału ETI Politechniki Gdańskiej. Technologie Informacyjne - Rok 2010

  ASON (Automatic Switched Optical Network) is a concept of optical network recommended in G.8080/Y.1304 by ITU-T. Control Plane of this network could be based on GMPLS (Generalized Multi-Protocol Label Switching) protocols. This solution, an ASON control plane built on GMPLS protocols is named ASON/GMPLS. In the paper, we decompose the control plane problem and show the main concepts of ASON network. We propose a hierarchical architecture...

• Modelling and analysis of medium frequency transformers for power converters

  Publikacja

  • P. Dworakowski

  - Rok 2020

  The evolutions in power systems and electric vehicles, related to the economic opportunities and the environmental issues, bring the need of high power galvanically isolated DC-DC converter. The medium frequency transformer (MFT) is one of its key components, enabled by the increasing switching frequency of modern power semiconductors like silicon carbide transistors or diodes. The increased operating frequency offers small...

  Pełny tekst do pobrania w portalu

• Expedited two-objective dimension scaling of compact microwave passives using surrogate models

  Publikacja

  • S. Kozieł
  • A. Bekasiewicz
  • Q. S. Cheng

  - Rok 2016

  Geometry scaling of compact microwave structures is a challenging problem because of complex relationships between the physical dimensions and electrical characteristics, mostly caused by considerable cross-couplings in densely arranged layouts. Here, a procedure for expedited dimension scaling of compact microwave couplers with respect to two independent criteria has been presented. Our approach involves inverse surrogate models...

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• On the Matano Plane Position in Multicomponent Diffusion Couples

  Publikacja

  • K. Lademann
  • H. Leszczyński
  • K. Tkacz-Śmiech
  • B. Bożek
  • M. Zajusz
  • M. Danielewski

  - Nano Hybrids and Composites - Rok 2019

  Even though several methods of diffusion analysis avoid a necessity for the Matano plane determination, the Matano plane locations are of interest in the multicomponent couples and when tracer experiments are performed. The positions of the Matano plane calculated from the concentration profiles should be exactly the same. However, due to experimental errors, the results can differ significantly. In the paper we consider Matano...

• On the Matano Plane Position in Multicomponent Diffusion Couples

  Publikacja

  • K. Lademann
  • H. Leszczyński
  • K. Tkacz-Śmiech
  • B. Bożek
  • M. Zajusz
  • M. Danielewski

  - Nano Hybrids and Composites - Rok 2019

  Even though several methods of diffusion analysis avoid a necessity for the Matano plane determination, the Matano plane locations are of interest in the multicomponent couples and when tracer experiments are performed. The positions of the Matano plane calculated from the concentration profiles should be exactly the same. However, due to experimental errors, the results can differ significantly. In the paper we consider Matano...

• Double-ridged horn antenna with sinusoidal ridge profile

  Publikacja

  • M. Kujałowicz
  • W. Zieniutycz
  • M. Mazur

  - Rok 2006

  Przedstawiono wyniki symulacji numerycznej oraz pomiarów parametrów anteny tubowej z podwójnym grzbietem. Badania numeryczne dotyczyły zarówno samego układu zasilania falowodu grzbietowego jak i całej anteny z uwzględnieniem sinusoidalnego profilu impedancji grzbietu. Wyniki obliczeń dopasowania oraz charakterystyk promieniowania, wykonanych przy użyciu symulatora QW-3D, porównano z wynikami pomiarów, stwierdzając dobrą zgodność...

• E-MEDIACJE JAKO PRZEDSIĘBIORCZA STRATEGIA ROZWIĄZYWANIA KONFLIKTÓW = E-mediation – the entrepreneurial strategy of conflict resolution

  Publikacja

  • B. Krawczyk-Bryłka
  • I. Flis

  - Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska - Rok 2015

  Artykuł dotyczy tematu e-mediacji, które są nowoczesną metodą rozwiązywania konfliktów gospodarczych, zakładającą zastosowanie innowacyjnych rozwiązań informatycznych w procesie zarzadzania konfliktem. Zaprezentowano wyniki badań, które przeprowadzono na grupie polskich przedsiębiorców, by zweryfikować postawy wobec e-mediacji i gotowość korzystania z tego rozwiązania w sytuacjach konfliktowych.

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• Influence analysis of selected parameters on the ASON/GMPLS control plane performance

  Publikacja

  • S. Kaczmarek
  • M. Młynarczuk
  • P. Zieńko

  - Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne - Rok 2013

  The paper regards the problem of ASON/GMPLS performance. The authors present influence analysis of selected parameters on the ASON/GMPLS control plane performance represented in mean Connection Set-up Time E(CST) and mean Connection Release Time E(CRT). The selected parameters are: offered traffic, request intensity and proportion of requests class. The influence analysis is performed with simulation method by using OMNeT++ discrete-event...

• Compact Dual-Polarized Corrugated Horn Antenna for Satellite Communications

  Publikacja

  • M. Saeed
  • S. Kozieł
  • L. Leifsson

  - IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION - Rok 2020

  In this paper, a structure and design procedure of a novel compact dual-polarized corrugated horn antenna with high gain and a stable phase center for satellite communication is presented. The antenna incorporates an Ortho-Mode Transducer (OMT), a mode converter, and a corrugated structure. The compact OMT section is designed to be fed by standard WR-75 waveguides. The proposed compact design utilizes only ten corrugated slots...

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• Compact, Order Extensible and Wide-Stopband Bandpass Filter Based on SIW Cavity with Rectangular Ring Slot

  Publikacja

  • R. K. Barik
  • S. Kozieł

  - IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS - Rok 2022

  This article introduces novel architectures of bandpass filters (BPFs) using a substrate integrated waveguide (SIW) cavity with a rectangular ring slot (RRS) for compact size, extensible order, and broad stopband responses. Two bandpass filters, which demonstrate a second-and a fourth-order Chebyshev response, respectively, are realized by employing identical cavities with RRS, without increasing the physical size of the circuit....

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• ANTIOXIDANT POWER SERIES (APS) AS A TOOL FOR RATIONAL DESIGN AND ASSESSMENT OF HEALTH PROMOTING PROPERTIES OF FUNCTONAL FOODS BASED ON ANTIOXIDANT PHYTOCHEMICALS

  Publikacja

  • A. Bartoszek-Pączkowska
  • M. Baranowska
  • K. Suliborska
  • W. Chrzanowski
  • B. Kusznierewicz
  • A. Kot-Wasik

  - Rok 2019

  Over past decades, plantborne antioxidants dominated so called "translational research" in the area of food, nutrition, and disease prevention. Among consumers and producers, such phytochemicals are synonyms of nutriceuticals. Popularity and commercial success of antioxidants stems from mechanistic studies suggesting the involvement of reactive oxygen species in etiology of chronic diseases. However, epidemiology failed to provide...

• Towards Compact City – Gdańsk-Osowa district case study, proposal no 1, January 2021

  Dane Badawcze

  open access

  • J. Borucka
  • J. Martyniuk-Pęczek
  • K. Russek
  • K. Nowak
  • B. Krzemiński
  • Rada Dzielnicy Gdańsk-Osowa / Gdańsk-Osowa District Council

  - seria: Theory application in contemporary urban design, Gdańsk-Osowa dirstrict

  The data presents results of work within the participatory planning process: Towards Compact City – Gdańsk-Osowa district case study, proposal no 1, from January 2021. The goal of the process was to present the new, innovative design visions for the area located in Gdańsk-Osowa district in the context of “Compact city” and “Walkable city” ideas. The...

• Towards Compact City – Gdańsk-Osowa district case study, proposal no 2, January 2021

  Dane Badawcze

  open access

  • J. Borucka
  • J. Martyniuk-Pęczek
  • K. Russek
  • L. Matsisovich
  • J. Kreft
  • Rada Dzielnicy Gdańsk-Osowa / Gdańsk-Osowa District Council

  - seria: Theory application in contemporary urban design, Gdańsk-Osowa dirstrict

  The data presents results of work within the participatory planning process: Towards Compact City – Gdańsk-Osowa district case study, proposal no 2, from January 2021. The goal of the process was to present the new, innovative design visions for the area located in Gdańsk-Osowa district in the context of “Compact city” and “Walkable city” ideas. The...

• Towards Compact City – Gdańsk-Osowa district case study, proposal no 3, January 2021

  Dane Badawcze

  open access

  • J. Borucka
  • J. Martyniuk-Pęczek
  • K. Russek
  • M. Źrubek
  • E. Wojtysiak
  • Rada Dzielnicy Gdańsk-Osowa / Gdańsk-Osowa District Council

  - seria: Theory application in contemporary urban design, Gdańsk-Osowa dirstrict

  The data presents results of work within the participatory planning process: Towards Compact City – Gdańsk-Osowa district case study, proposal no 3, from January 2021. The goal of the process was to present the new, innovative design visions for the area located in Gdańsk-Osowa district in the context of “Compact city” and “Walkable city” ideas. The...

• Towards Compact City – Gdańsk-Osowa district case study, proposal no 7, January 2021

  Dane Badawcze

  open access

  • J. Borucka
  • J. Martyniuk-Pęczek
  • K. Russek
  • I. Czaja
  • N. Kalińska
  • J. Ciechanowski
  • Rada Dzielnicy Gdańsk-Osowa / Gdańsk-Osowa District Council

  - seria: Theory application in contemporary urban design, Gdańsk-Osowa dirstrict

  The data presents results of work within the participatory planning process: Towards Compact City – Gdańsk-Osowa district case study, proposal no 7, from January 2021. The goal of the process was to present the new, innovative design visions for the area located in Gdańsk-Osowa district in the context of “Compact city” and “Walkable city” ideas. The...

• Towards Compact City – Gdańsk-Osowa district case study, proposal no 6, January 2021

  Dane Badawcze

  open access

  • J. Borucka
  • J. Martyniuk-Pęczek
  • K. Russek
  • B. Kulis
  • E. Przybysz
  • Rada Dzielnicy Gdańsk-Osowa / Gdańsk-Osowa District Council

  - seria: Theory application in contemporary urban design, Gdańsk-Osowa dirstrict

  The data presents results of work within the participatory planning process: Towards Compact City – Gdańsk-Osowa district case study, proposal no 6, from January 2021. The goal of the process was to present the new, innovative design visions for the area located in Gdańsk-Osowa district in the context of “Compact city” and “Walkable city” ideas. The...

• Towards Compact City – Gdańsk-Osowa district case study, proposal no 5, January 2021

  Dane Badawcze

  open access

  • J. Borucka
  • J. Martyniuk-Pęczek
  • K. Russek
  • W. Glanc
  • M. Pieńkoś
  • Rada Dzielnicy Gdańsk-Osowa / Gdańsk-Osowa District Council

  - seria: Theory application in contemporary urban design, Gdańsk-Osowa dirstrict

  The data presents results of work within the participatory planning process: Towards Compact City – Gdańsk-Osowa district case study, proposal no 5, from January 2021. The goal of the process was to present the new, innovative design visions for the area located in Gdańsk-Osowa district in the context of “Compact city” and “Walkable city” ideas. The...

• Towards Compact City – Gdańsk-Osowa district case study, proposal no 4, January 2021

  Dane Badawcze

  open access

  • J. Borucka
  • J. Martyniuk-Pęczek
  • K. Russek
  • N. Fronczek
  • N. Janusch
  • Rada Dzielnicy Gdańsk-Osowa / Gdańsk-Osowa District Council

  - seria: Theory application in contemporary urban design, Gdańsk-Osowa dirstrict

  The data presents results of work within the participatory planning process: Towards Compact City – Gdańsk-Osowa district case study, proposal no 4, from January 2021. The goal of the process was to present the new, innovative design visions for the area located in Gdańsk-Osowa district in the context of “Compact city” and “Walkable city” ideas. The...

• Towards Compact City – Gdańsk-Osowa district case study, proposal no 8, January 2021

  Dane Badawcze

  open access

  • J. Borucka
  • J. Martyniuk-Pęczek
  • K. Russek
  • M. Woronecka
  • A. Miotk
  • M. Olszewska
  • Rada Dzielnicy Gdańsk-Osowa / Gdańsk-Osowa District Council

  - seria: Theory application in contemporary urban design, Gdańsk-Osowa dirstrict

  The data presents results of work within the participatory planning process: Towards Compact City – Gdańsk-Osowa district case study, proposal no 8, from January 2021. The goal of the process was to present the new, innovative design visions for the area located in Gdańsk-Osowa district in the context of “Compact city” and “Walkable city” ideas. The...

• Towards Compact City – Gdańsk-Osowa district case study, proposal no 9, January 2021

  Dane Badawcze

  open access

  • J. Borucka
  • J. Martyniuk-Pęczek
  • K. Russek
  • K. Balcerak
  • S. Bartosiak
  • N. Buć
  • Rada Dzielnicy Gdańsk-Osowa / Gdańsk-Osowa District Council

  - seria: Theory application in contemporary urban design, Gdańsk-Osowa dirstrict

  The data presents results of work within the participatory planning process: Towards Compact City – Gdańsk-Osowa district case study, proposal no 9, from January 2021. The goal of the process was to present the new, innovative design visions for the area located in Gdańsk-Osowa district in the context of “Compact city” and “Walkable city” ideas. The...

• 3D Metamaterial Ultra-Wideband Absorber for curved surface

  Publikacja

  • M. Norouzi
  • S. Jarchi
  • M. Miab
  • M. Esfandiari
  • A. Lalbakhsh
  • S. Kozieł
  • S. Reisenfeld
  • G. Moloudian

  - Scientific Reports - Rok 2023

  This paper proposes a three-dimensional metamaterial absorber based on a resistive film patch array to develop a low-cost, lightweight absorber for curved surfaces. An excellent absorption over a large frequency band is achieved through two different yet controllable mechanisms; In the first mechanism, a considerable attenuation in the wave power is achieved via graphite resistive films. The absorption is then intensified through...

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• Zero-pole approach to computer aided design of in-line siw filters with transmission zeros

  Publikacja

  • A. Jędrzejewski
  • N. Leszczynska
  • Ł. Szydłowski
  • M. Mrozowski

  - Progress in Electromagnetics Research-PIER - Rok 2012

  This paper presents a design of a new type of in-line pseudo-elliptic filters implemented in substrate integrated waveguide(SIW) technology. To realize transmission zeros in in-line topology,frequency-dependent couplings were used. Such dispersive couplingswere implemented as shorted stubs. The design process startswith the generation of a suitable starting point. To this end, anapproximation of SIW as a rectangular waveguide is...

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• Circular polarization diversity implementation for correlation reduction in wideband low-cost multiple-input-multiple-output antenna

  Publikacja

  • U. Ullah
  • M. Al-hasan
  • S. Kozieł
  • I. Mabrouk

  - IEEE Access - Rok 2020

  In this paper, a multiple-input-multiple-output (MIMO) antenna featuring circular polarization diversity, and designed on a common coplanar ground is presented. The proposed antenna design utilizes a coplanar waveguide (CPW) feeding technique with three parallel coplanar ground planes, and two feedlines in-between. For circular polarization (CP), quasi-loops are created by etching slots on the outermost ground planes. With this...

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• Design of a test bench for determining the general characteristics of an internal combustion engine using a hydraulic power take-off system

  Publikacja

  • O. Wysocki
  • J. Czyżewicz
  • J. Kropiwnicki

  - Rok 2017

  The paper presents a design of an engine test bench, which is used to determine the general characteristics of a truck engine using a power take-off (PTO). PTO drives a hydraulic system that generates a load on the engine at various points in its operation in the power range specified by the hydraulic system. The design allows for stationary and mobile tests with the test bench mounted on the truck, without any modification of...

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• Oczekiwania stron konfliktu i mediatorów wobec e-mediacji. Czy e-mediacja ma przyszłość?

  Publikacja

  • B. Krawczyk-Bryłka
  • M. Bellwon

  - Rok 2014

  Artykuł prezentuje możliwości prowadzenia mediacji – skutecznej i korzystnej, ale rzadko wykorzystywanej w Polsce metody pozasądowego rozstrzygania sporów - z wykorzystaniem profesjonalnej platformy internetowej. Na podstawie badań przeprowadzonych na grupie mediatorów oraz stron konfliktów określono oczekiwania dotyczące prowadzenia e-mediacji i wyzwania, jakie stawia przed mediatorami mediacja on-line.

• Towards Compact City – Gdańsk-Matarnia district case study, proposal for Klukowo area, January 2021

  Dane Badawcze

  open access

  • J. Borucka
  • J. Martyniuk-Pęczek
  • K. Russek
  • K. Streich
  • N. Szerszeń

  - seria: Theory application in contemporary urban design, Gdańsk-Matarnia dirstrict

  The data presents results of work within the participatory planning process: Towards Compact City – Gdańsk-Matarnia district case study, proposal for Klukowo area, from January 2021. The goal of the process was to present the new, innovative design visions for the area located in Gdańsk-Matarnia district in the context of “Compact city” and “Walkable...

• Design and Optimization of Metamaterial-based Highly-isolated MIMO Antenna with High Gain and Beam Tilting Ability for 5G Millimeter Wave Applications

  Publikacja

  • B. Esmail
  • S. Kozieł

  - Scientific Reports - Rok 2024

  This paper presents a wideband multiple-input multiple-output (MIMO) antenna with high gain and isolation, as well as beam tilting capability, for 5G millimeter wave (MMW) applications. A single bow-tie antenna fed by a substrate-integrated waveguide (SIW) is proposed to cover the 28 GHz band (26.5–29.5 GHz) with a maximum gain of 6.35 dB. To enhance the gain, H-shaped metamaterial (MM)-based components are incorporated into the...

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