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Year 2022

Year 2019

  • 100-lecie powstania Bauhausu: 1919-2019
    Publication

    Celem artykułu jest przypomnienie setnej rocznicy powstania szkoły wzornictwa i architektury Bauhaus. Uczelnia powstała w Dessau i miała ogromny wpływ na rozwój nowoczesnej sztuki - malarstwa, architektury i wzornictwa. Autorzy artykułu przygotowali wystawę poświęconą 100-leciu Bauhausu, która była prezentowana w murach Politechniki Gdańskiej. W artykule wykorzystano fotografie i materiały z tej wystawy. Wystawa i artykuł powstały...

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  • 2-Coloring number revisited

    2-Coloring number is a parameter, which is often used in the literature to bound the game chromatic number and other related parameters. However, this parameter has not been precisely studied before. In this paper we aim to fill this gap. In particular we show that the approximation of the game chromatic number by the 2-coloring number can be very poor for many graphs. Additionally we prove that the 2-coloring number may grow...

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  • 2-D constitutive equations for orthotropic Cosserat type laminated shells in finite element analysis

    We propose 2-D Cosserat type orthotropic constitutive equations for laminated shells for the purpose of initial failure estimation in a laminate layer. We use nonlinear 6-parameter shell theory with asymmetric membrane strain measures and Cosserat kinematics as the framework. This theory is specially dedicated to the analysis of irregular shells, inter alia, with orthogonal intersections, since it takes into account the drilling...

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  • 3D Hierarchical Boron-Doped Diamond-Multilayered Graphene Nanowalls as an Efficient Supercapacitor Electrode
    Publication

    - Journal of Physical Chemistry C - Year 2019

    Synthesis of stable hybrid carbon nanostructure for high-performance supercapacitor electrode with long life-cycle for electronic and energy storage devices is a real challenge. Here, we present a one-step synthesis method to produce conductive boron-doped hybrid carbon nanowalls (HCNWs), where sp2-bonded graphene has been integrated with and over a three-dimensional curved wall-like network of sp3-bonded diamond. The spectroscopic...

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  • 3-phase medium frequency transformer for a 100kW 1.2kV 20kHz Dual Active Bridge converter
    Publication

    - Year 2019

    The article presents a three-phase Medium Frequency Transformer being a part of a 100kW 1.2kV 20kHz Dual Active Bridge DC-DC converter. The transformer design is detailed focusing on winding and core power loss calculation. The high power three-phase MFT prototype is presented. The experimental results include the transformer impedance characteristics, no load test and three-phase DAB full load test waveforms

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Year 2009

Year 2017

Year 2012

Year 2011

Year 2023

  • 16-kanałowy moduł LED do systemu wspomagającego rozwój roślin sterowany za pomocą Raspberry PI
    Publication

    - Przegląd Elektrotechniczny - Year 2023

    Opracowywane są nowe rozkłady widma światła, które wpływają na poprawę zarówno ilości plonów i jakości dokonywanych zbiorów. W celu uproszczenia wprowadzania zmian widma w procesach badawczych oraz w celu przyspieszenia i zrównoleglenia badań w tym zakresie został opracowany niedrogi programowalny moduł LED pozwalający sterować 16 niezależnymi stałoprądowymi kanałami. Niska cena proponowanego rozwiązania oraz jeden sterownik obsługujący...

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  • 2-Methoxyestradiol and Hydrogen Peroxide as Promising Biomarkers in Parkinson’s Disease
    Publication
    • P. Bastian
    • L. Konieczna
    • J. Dulski
    • A. Daca
    • D. Jacewicz
    • A. Płoska
    • N. Knap
    • J. Sławek
    • T. Baczek
    • L. Kalinowski... and 4 others

    - MOLECULAR NEUROBIOLOGY - Year 2023

    Estrogens function in numerous physiological processes including controlling brain cell growth and differentiation. 2-Meth- oxestradiol (2-ME2), a 17β-estradiol (E2) metabolite, is known for its anticancer effects as observed both in vivo and in vitro. 2-ME2 affects all actively dividing cells, including neurons. The study aimed to determine whether 2-ME2 is a potentially cancer-protective or rather neurodegenerative agent in a...

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  • 3D Metamaterial Ultra-Wideband Absorber for curved surface
    Publication
    • M. Norouzi
    • S. Jarchi
    • M. Miab
    • M. Esfandiari
    • A. Lalbakhsh
    • S. Kozieł
    • S. Reisenfeld
    • G. Moloudian

    - Scientific Reports - Year 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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Year 2010

Year 2018

Year 2016

  • 2015. Motion analysis of a kitesurfer employing a vision-based measurement system
    Publication

    - Journal of Vibroengineering - Year 2016

    Abstract. Kitesurfing is a relatively new phenomenon with rising popularity worldwide – a recently developed extreme watersport considered a high-risk injury sport. It combines elements of several other sports, in particular, sailing, surfing, windsurfing, wakeboarding, and snowboarding. The main purpose of authors’ research in the present paper is to use a vision-based system for measuring a kitesurfer’s body movements in order...

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  • 3D Acoustic Field Intensity Probe Design and Measurements

    The aim of this paper is two-fold. First, some basic notions on acoustic field intensity and its measurement are shortly recalled. Then, the equipment and the measurement procedure used in the sound intensity in the performed research study are described. The second goal is to present details of the design of the engineered 3D intensity probe, as well as the algorithms developed and applied for that purpose. Results of the intensity...

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  • 5-Bromo-2′-deoxycytidine—a potential DNA photosensitizer
    Publication

    - ORGANIC & BIOMOLECULAR CHEMISTRY - Year 2016

    A double-stranded oligonucleotide, 80 base pairs in length, was multiply labeled with 5-bromo-2′-deoxycytidine (BrdC) using polymerase chain reaction (PCR). The modified oligonucleotide was irradiated with 300 nm photons and its damage was assayed by employing DHPLC, LC-MS and denaturing polyacrylamide gel electrophoresis (PAGE). Two types of damage were demonstrated, namely, single strand breaks (SSBs) and intrastrand cross-links...

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Year 2008

Year 2006

Year 2015

  • 2-outer-independent domination in graphs
    Publication

    We initiate the study of 2-outer-independent domination in graphs. A 2-outer-independent dominating set of a graph G is a set D of vertices of G such that every vertex of V(G)\D has at least two neighbors in D, and the set V(G)\D is independent. The 2-outer-independent domination number of a graph G is the minimum cardinality of a 2-outer-independent dominating set of G. We show that if a graph has minimum degree at least two,...

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Year 2014

Year 2013

  • 3D Buckling Analysis of a Truss with Horizontal Braces

    The present research is devoted to the study of out–of–plane buckling of a truss with horizontal braces. The truss is a model of real roof truss scaled by factor 1=4. A linear buckling and a non–linear analysis with geometric and material non–linearity were carried out. The truss buckling and limit load for different stiffnesses and number of braces are found. Numerical analysis are verified by experiment. Threshold bracing stiffness condition...

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  • 3D GIS technology. More accurate GIS-every-day-reality

    Geographical space can be described with the Geographic Information System (GIS). It consists of software, hardware, data, algorithms, procedures for processing information and accessibility, as well as the people who use the system and the legal, technological and organisational procedures. GIS is commonly applied in such studies as “Environmental Protection Programmes”, and in numerous reports and documents regarding spatial...

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Year 2021

Year 2020

  • 3D PCB package for GaN inverter leg with low EMC feature
    Publication

    - Year 2020

    This paper presents the adaptation of a 3D integration concept previously used with vertical devices to lateral GaN devices. This 3D integration allows to reduce loop inductance, to ensure more symmetrical design with especially limited Common Mode emission, thanks to a low middle point stray capacitance. This reduction has been achieved by both working on the power layout and including a specific shield between the devices and...

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  • 3D Vision System for a Robotic Arm Based on Equal Baseline Camera Array

    This paper presents a lightweight 3D vision system called Equal Baseline Camera Array (EBCA). EBCA can work in different light conditions and it can be applied for measuring large range of distances. The system is a useful alternative to other known distance measuring devices such as structured-light 3D scanners, time-of-flight cameras, Light Detection and Ranging (LIDAR) devices and structure from motion techniques. EBCA can be...

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