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Wyniki wyszukiwania dla: KABLE ŚWIATŁOWODOWE

Wyniki wyszukiwania dla: KABLE ŚWIATŁOWODOWE

  • The experience of movement in the built form and space: A framework for movement evaluation in architecture

    Publikacja

    “Movement in architecture” is an organized system of various types of movements stimulated by specific architectural elements. This research was conducted through a qualitative-analytical method and empirical and bibliographical research methods with the aim to categorize different types of movements based on the explorer and observer relationships with the built space and form. So far, most of the related studies have focused...

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  • Subjective Quality Evaluation of Speech Signals Transmitted via BPL-PLC Wired System

    Publikacja
    • P. Falkowski-Gilski
    • G. Debita
    • M. Habrych
    • B. Miedziński
    • P. Jedlikowski
    • B. Polnik
    • J. Wandzio
    • X. Wang

    - Rok 2020

    The broadband over power line – power line communication (BPL-PLC) cable is resistant to electricity stoppage and partial damage of phase conductors. It maintains continuity of transmission in case of an emergency. These features make it an ideal solution for delivering data, e.g. in an underground mine environment, especially clear and easily understandable voice messages. This paper describes a subjective quality evaluation of...

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  • Modeling of a Quasi-Resonant DC Link Inverter Dedicated to Common-Mode Voltage and Ground Current Reduction

    Publikacja

    - ENERGIES - Rok 2020

    In this paper, the modeling methodology of the AC drive system with a Parallel Quasi-Resonant DC Link Inverter (PQRDCLI) is described. A presented modeling approach is an attractive tool used for the effective evaluation of a common-mode (CM) voltage and grounds current reduction methods. Designed models of inverter, induction machine (IM), and cable are simple, thus the methods for parameter extraction are not complicated. Verification...

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  • Analysis of Roughness, the Material Removal Rate, and the Acoustic Emission Signal Obtained in Flat Grinding Processes

    Publikacja
    • P. Sender
    • I. Buj - Corral
    • J. Álvarez-Flórez

    - Machines - Rok 2024

    In this work, the analysis of the acoustic emission (AE) signal in grinding processes is addressed. The proposed analysis method decomposes the acoustic signal into three frequency ranges. The total energy of each range is determined, as well as the highest frequency. Different grinding experiments were carried out, according to a full factorial design of experiments (DOE), in which feed speed, depth of cut, and transversal step...

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  • Effect of excitation intensity on slope stability assessed by a simplified approach

    Publikacja

    - Earthquakes and Structures - Rok 2021

    The paper concerns the selection of a design accelerograms used for the slope stability assessment under earthquake excitation. The aim is to experimentally verify the Arias Intensity as an indicator of the excitation threat to the slope stability. A simple dynamic system consisting of a rigid block on a rigid inclined plane subjected to horizontal excitation is adopted as a slope model. Strong ground motions recorded during earthquakes...

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  • JamesBot - an intelligent agent playing StarCraft II

    Publikacja

    The most popular method for optimizing a certain strategy based on a reward is Reinforcement Learning (RL). Lately, a big challenge for this technique are computer games such as StarCraft II which is a real-time strategy game, created by Blizzard. The main idea of this game is to fight between agents and control objects on the battlefield in order to defeat the enemy. This work concerns creating an autonomous bot using reinforced...

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  • Assessing vehicle restraint systems on horizontal curves

    Horizontal curves, an element of road infrastructure, have a statistically high number of accidents. Considering that horizontal curves in the last ten years have had app. 10% of all road accidents representing app. 14% of all fatalities on Polish roads, the issue is serious and requires more research and proper road safety treatments. Data for 2007 - 2016 show that in the case of accidents on horizontal curves app. 45% of the...

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  • Pełnienie nadzoru naukowego nad naprawą po awarii i dalszą budową konstrukcji mostu M-78. Ekspertyza techniczna

    Celem opracowania jest szczegółowa analiza mostu M-78 wykonywanego w ramach zadania „Projekt i budowa drogi ekspresowej S-6 na odcinku od węzła „Kołobrzeg Zachód" /bez węzła/ węzeł „Ustronie Morskie" /z węzłem/ oraz „Budowa obwodnicy m. Kołobrzeg w ciągu drogi krajowej nr 11” ”. Opracowanie w sposób szczegółowy przedstawia prace zrealizowane na potrzeby wydanych opinii technicznych w trakcie realizacji mostu. Zakres opracowania...

  • Reduction of vibrations of steel structure models with Polymeric Bearings - experimental study

    Publikacja

    Earthquake-induced ground motions are the most severe and unpredictable threats to the structures all around the world. Therefore, designing earthquake protective systems has become an extremely challenging problem in civil engineering. Base isolation is one of the most popular and widely adopted methods of protecting structures against earthquake forces. The present paper reports the results obtained from the shaking table experimental...

  • Data on LEGO sets release dates and retail prices combined with aftermarket transaction prices between June 2018 and June 2023.

    Dane Badawcze
    open access - seria: LEGO

    The dataset contains LEGO bricks sets item count and pricing history for AI-based set pricing prediction.

  • Wirusologia molekularna - wykład WCh 2022/23, Biotechnologia II stopień - new

    Kursy Online
    • B. Zalewska-Piątek

    Celem kursu jest zapoznanie się z podstawowymi zagadnieniami, dotyczącymi wirusologii molekularnej, takimi jaka ochronne szczepionki przeciwwirusowe w kontekście nowo wyłaniających się chorób wirusowych, mechanizmy patogenności wirusów roślinnych i zwierzęcych, nietypowe czynniki subwirusowe (satelity, wiroidy i priony) oraz wykorzystanie bakteriofagów w medycynie (terapia fagowa) i biotechnologii (enzymy i wektory fagowe, szczepionki). Dane...

  • Biologia ekosystemów wykład - nowy - 2023/24

    Kursy Online
    • B. Zalewska-Piątek

    Celem kursu Biologia środowiska jest poszerzenie wiedzy z dziedziny biologii ogólnej z elementami molekularnymi, ekotoksykologii oraz ochrony środowiska poprzez przybliżenie wybranych zagadnień (t.j. charakterystyka wybranych grup organizmów zasiedlających biosferę, genom jako całkowita informacja genetyczna komórki, mutacje i typy mutagenów środowiskowych, odpowiedzi biologiczne na poziomie organizmu lub niższym jako efekt działania...

  • Wirusologia molekularna - wykład WCh 2023/24, Biotechnologia II stopień

    Kursy Online
    • B. Zalewska-Piątek

    Celem kursu jest zapoznanie się z podstawowymi zagadnieniami, dotyczącymi wirusologii molekularnej, takimi jaka ochronne szczepionki przeciwwirusowe w kontekście nowo wyłaniających się chorób wirusowych, mechanizmy patogenności wirusów roślinnych i zwierzęcych, nietypowe czynniki subwirusowe (satelity, wiroidy i priony) oraz wykorzystanie bakteriofagów w medycynie (terapia fagowa) i biotechnologii (enzymy i wektory fagowe, szczepionki). Dane...

  • Wirusologia molekularna - wykład WCh 2024/25, Biotechnologia II stopień

    Kursy Online
    • B. Zalewska-Piątek

    Celem kursu jest zapoznanie się z podstawowymi zagadnieniami, dotyczącymi wirusologii molekularnej, takimi jaka ochronne szczepionki przeciwwirusowe w kontekście nowo wyłaniających się chorób wirusowych, mechanizmy patogenności wirusów roślinnych i zwierzęcych, nietypowe czynniki subwirusowe (satelity, wiroidy i priony) oraz wykorzystanie bakteriofagów w medycynie (terapia fagowa) i biotechnologii (enzymy i wektory fagowe, szczepionki). Dane...

  • The health impact of urban parks along waterways

    Publikacja

    - Rok 2014

    Well designed parks along waterways could promote health and well-being of local inhabitants. The way the human settlements meet water bodies can influence the habits of local population. How people spend their time have significant impact on their health. For example, a team of Japanese scientists has proven that a well designed walk-able green spaces are crucial for the longevity of elderly citizens (Takano T. et al, 2002). Nature...

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  • Finite Element Method

    Kursy Online
    • B. Sobczyk
    • M. Malikan

    Item Name : Finite Element Method- Abaqus learning Field of study : Civil Engineering Faculty : Faculty of Civil and Environmental Engineering Education level : Second degree studies Form of studies : Full-time studies Year of studies : 1 Study semester : 2 Start of the semester : November 2021 Academic year of the course : 2021/2022 Form of classes : Lecture, Laboratory

  • Ocena wpływu pokarmowych kwasów nukleinowych i ich komponentów na replikacyjną i naprawczą syntezę DNA w modelach komórek ludzkiego układu pokarmowego

    Publikacja

    - Rok 2023

    Kwasy nukleinowe, do których należą DNA i RNA, są podstawowymi elementami każdej komórki niezbędnymi do prawidłowego funkcjonowania organizmu. Pomimo, że cząsteczki te stanowią również nieodłączne składniki produktów żywnościowych spożywanych przez człowieka, to badania na temat ich zawartości w żywności oraz wartości odżywczej są ograniczone. Wyniki uzyskane w niniejszej pracy doktorskiej pokazały istotne różnice w ilości, wielkości...

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  • Badanie i porównanie zdolności wybranych leków i związków przeciwnowotworowych do międzyłańcuchowego sieciowania DNA mitochondrialnego i jądrowego w komórkach nowotworowych

    Publikacja

    - Rok 2010

    Celem pracy było zbadanie zdolności przeciwnowotworowych związków do indukowania międzyłańcuchowych wiązań sieciujących DNA mitochondrialne w ludzkich komórkach nowotworowych oraz porównanie ze zdolnością do sieciowania DNA jądrowego. Pochodna 4-metylo-1-nitroakrydyny C-1748, Ledakrin i mitomycyna C wykazują zdolność do sieciowania mtDNA i jDNA w komórkach raka okrężnicy HCT-8 w sposób zależny od dawki; C-1748 w komórkach raka...

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  • Artificial intelligence models in prediction of response to cardiac resynchronization therapy: a systematic review

    Publikacja
    • W. Nazar
    • S. Szymanowicz
    • K. Nazar
    • D. Kaufmann
    • E. Wabich
    • R. Braun‑Dullaeus
    • L. Daniłowicz‑Szymanowicz

    - HEART FAILURE REVIEWS - Rok 2023

    The aim of the presented review is to summarize the literature data on the accuracy and clinical applicability of artificial intelligence (AI) models as a valuable alternative to the current guidelines in predicting cardiac resynchronization therapy (CRT) response and phenotyping of patients eligible for CRT implantation. This systematic review was performed...

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  • Adaptive traffic optimization using Variable Speed Limits; Adaptacyjna optymalizacja ruchu drogowego przy pomocy zmiennych ograniczeń prędkości

    Publikacja

    - Rok 2020

    Variable speed limits (VSL) is an intelligent transportation system (ITS) solution for traffic management. The speed limits can be changed dynamically in order to adapt to traffic, weather, or road surface conditions. This paper presents an approach for such an adaptive traffic control where the primary goal is to ensure traffic safety and efficiency of the traffic control system (fast response to dynamically changing traffic,...

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  • The role of sport in the Smart City concept

    Sport brings to cities innovative solutions that influence urban life, yet considerations about sport still rarely contribute to the development of the very popular smart city concept. This raises the question: what is the perception of sport in the city from the perspective of the smart city concept? One of the challenges of future urban policy is to provide initiatives that ensure the wellbeing and promote the model of a healthy...

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  • Position and Orientation Estimation in Radio Network With Groups of Locally Synchronized Nodes

    Publikacja

    This article presents a positioning system with groups of locally synchronized nodes. A mobile object is equipped with a group of several synchronized receivers that are able to measure the difference in the time of arrival of signals from reference transmitters. The reference transmitters are synchronized only in local groups, with no global synchronization between groups. It is assumed that the synchronous operation of transmitters...

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  • Stress Monitoring System for Individuals with Autism Spectrum Disorders

    Publikacja

    - IEEE Access - Rok 2020

    In this article, a stress monitoring system tailored for individuals with Autism Spectrum Disorders (ASD) and developed for the educational institution is presented. People with ASD face problems with effective stress management due to their high self-perceived levels of stress, poor ability to cope with it, and dificulties with the accurate detection of the source of stress. Consistently, being able to measure stress appears to...

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  • HISTORY OF INITIAL ENERGY AND WATER NETWORK DEVELOPMENT IN QATAR

    Qatar: A country which had to be associated with neighboring countries like UAE or Saudi Arabia for people to know about it, stands proud today due to the ample production and exporting of Black Gold. A country with almost no vegetation or suitable weather to harvest crops, turned from being heavily dependent on trading Pearls to exporting natural oil and gas to all over the globe. The paper outlines in details the history of the...

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  • Threshold Attendance under Soft-Crash Model: TAG Protocol and Markovian Analysis

    Publikacja

    - Rok 2018

    A realistic and systematic network evaluation should subsume an availability model and a failure model. We combine a "hard availability" model we call threshold attendance, whereby a certain minimum number of network elements must be present at any time, with a soft-crash failure model, whereby after experiencing a failure, a network element is still able to function correctly for a while in an emergency mode at a risk of a major...

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  • Meconium analysis as a promising diagnostic tool for monitoring fetal exposure to toxic substances: Recent trends and perspectives

    Prenatal exposure to toxic substances is an important public health problem. Many biological specimens obtained from the fetus or mother are used for biomonitoring. Each material reflects exposure in a specific time period and has different advantages and disadvantages in terms of accuracy, time window of detection and cost/benefit ratio. Recently, meconium has become the matrix of choice in toxicology screening for detecting exposure...

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  • Fast-response optoelectronic detection of explosives’ residues from the nitroaromatic compounds detonation: field studies approach

    Publikacja

    - MEASUREMENT - Rok 2020

    We are presenting an application of optoelectronic nitrogen dioxide (NO2) analyzer based on cavity enhanced absorption spectroscopy in the detection of traces of explosives after detonation. It has been shown that the analyzer using blue-violet laser is able to detect explosive residues after the detonation of various amounts of nitroaromatic compounds (75g-1kg) with higher efficiency than the HPLC soil sample testing equipment,...

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  • Theoretical investigation of the structural insights of the interactions of γ-Fe2O3 nanoparticle with (EMIM TFSI) ionic liquid

    Publikacja
    • A. Sieradzan
    • C. Czaplewski
    • A. Bielicka-Gieldon
    • M. Bobrowski
    • A. Gieldon

    - JOURNAL OF MOLECULAR LIQUIDS - Rok 2021

    One of the possible applications of ionic liquids is to produce electricity from heat. The iron oxide nanoparticle is a potent electrical particle, which is expected to improve the heat’s efficiency to electricity conversion, however, it is prone to aggregation and sedimentation, which hamper its application. One of the methods to enhance the nanoparticle’s solubility and electrical properties is the use of a stabilizing component...

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  • Influence of Holes Manufacture Technology on Perforated Plate Aerodynamics

    Publikacja

    Transpiration flow is a very important and still open subject in many technical applications. Perforated walls are useful for the purpose of “flow control”, as well as for the cooling of walls and blades (effusive cooling) in gas turbines. We are still not able to include large numbers of holes in the numerical calculations and therefore we need physical models. Problems are related also to the quality of the holes in perforated...

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  • A novel methodology for the enantiomeric resolution of methamphetamine, its precursors and intermediates by GC-MS

    Publikacja

    - Rok 2013

    Impurity profiling and classification of abused drugs using chiral analytical techniques is of particular interest and importance because of the additional information obtained from this approach. When these methods are applied to the synthesis of illicitly used substances, they can supply valuable information about the conditions/chemicals used in the synthesis. In this study, simultaneous chiral separation of methylamphetamine,...

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  • Antimicrobial molecular nanocarrier–drug conjugates

    Many antimicrobial drugs are poorly active against pathogenic microbes causing intracellular infections, such as Mycobacterium tuberculosis or Plasmodium falciparum. On the other hand, several known antimicrobial agents are not effective enough because of their limited cellular penetration. A common feature of both challenges is the inability of an active agent to cross the biological membrane(s). One of the possible approaches...

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  • Modeling Object Oriented Systems via Controlled English Verbalization of Description Logic

    Publikacja

    - Rok 2010

    The need for formal methods for Object Oriented (OO) systems resulted in methods like UML and Lepus3 that are de-facto graphical languages equipped with formal tools that are able to handle the design of OO systems. However, they lack precise semantics which might lead to problems, such as inconsistencies or redundancies. On the other hand, to our knowledge, there is no approach that allows one to understand and follow the requirements...

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  • Quality Evaluation of Agricultural Distillates Using an Electronic Nose

    The paper presents the application of an electronic nose instrument to fast evaluation of agricultural distillates differing in quality. The investigations were carried out using a prototype of electronic nose equipped with a set of six semiconductor sensors by FIGARO Co., an electronic circuit converting signal into digital form and a set of thermostats able to provide gradient temperature characteristics to a gas mixture. A volatile fraction...

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  • In-service measurement of the small wind turbine test stand for structural health monitoring

    Publikacja

    - Rok 2013

    This paper presents the research activity performed on a Small Wind Turbine (SWT) test stand. Commercially available turbine was modified towards incorporation of the sensors system for condition monitoring. Installed sensors measure angular shaft position, torque applied from the wind loads, vibration accelerations and last but not least rotational speed. All gathered data are then transferred and processed in Test.Lab by means...

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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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  • Network society: a concept of smart information management

    Publikacja

    Automatic enhancement of Internet broadcasted news has been recently gaining increasing importance and interest. Existing applications and models of textual Event Detection in online media are based on the analysis of news distributed via RSS (Rich Site Summary called also Really Simple Syndication) channels or available at news websites. It assumes that each piece of news is equally available to the reader and, therefore, describes...

  • The Factors Affecting Group Identity of Cluster Structures

    Publikacja

    The paper provides a new approach to cluster analysis, basing on a sociologically rooted concept of identity. The authors state that identity in cluster structures is formed by two main groups of factors – uncontrollable or slightly controllable factors (identity mix) and factors that can be fully controlled by a cluster initiative (corporate identity mix). It means that the cluster coordinator is able to consciously build the...

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  • Appendix E

    Publikacja

    - Rok 2015

    The advance of variable speed drives systems (VSDs) engineering highlights the need of specific technical guidance provision by electrical machines and drives manufacturers, so that such applications can be properly designed to present advantages in terms of both energy efficiency and expenditure. This book presents problems and solutions related to inverter-fed electrical motors. Practically orientated, the book describes the...

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  • Hydroperoxyl radical and formic acid formation from common DNA stabilizers upon low energy electron attachment

    Publikacja
    • A. Ribar
    • S. Huber
    • M. Śmiałek-Telega
    • K. Tanzer
    • M. Neustetter
    • R. Schürmann
    • I. Bald
    • S. Denifl

    - PHYSICAL CHEMISTRY CHEMICAL PHYSICS - Rok 2018

    2-Amino-2-(hydroxymethyl)-1,3-propanediol (TRIS) and ethylenediaminetetraacetic acid (EDTA) are key components of biological buffers and are frequently used as DNA stabilizers in irradiation studies. Such surface or liquid phase studies are done with the aim to understand the fundamental mechanisms of DNA radiation damage and to improve cancer radiotherapy. When ionizing radiation is used, abundant secondary electrons are formed...

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  • Properties and Formation of Mineralized Veins in an Organic-Rich Shale Formation

    Publikacja

    - Rok 2017

    An earlier paper defined mineral and organic matter constituents in weak interfaces in shale formations (Ptaszynska, et. al., 2016). The formation studied in the earlier work and here is the Jurassic, early-Cretaceous Vaca Muerta formation in the Neuquen basin in Argentina. In this earlier work, mineralized "veins" were noted to be prevalent and complicated, sometimes being shear weak interfaces while in other cases they were not....

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  • Analysis of an Attenuator Artifact in an Experimental Attack by Gunn–Allison–Abbott Against the Kirchhoff-Law–Johnson-Noise (KLJN) Secure Key Exchange System

    Publikacja

    - FLUCTUATION AND NOISE LETTERS - Rok 2015

    A recent paper by Gunn–Allison–Abbott (GAA) [L. J. Gunn et al., Scientific Reports 4 (2014) 6461] argued that the Kirchhoff-law–Johnson-noise (KLJN) secure key exchange system could experience a severe information leak. Here we refute their results and demonstrate that GAA’s arguments ensue from a serious design flaw in their system. Specifically, an attenuator broke the single Kirchhoff-loop into two coupled loops, which is an...

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  • TIME-AND-SPACE STRUCTURE OF FORCE-DRIVEN RIGID SPHEREWAVEFIELD

    Publikacja

    - Rok 2015

    This paper introduces a time-domain, causality-inspired description of a vector-source acoustic wavefield of arbitrary time evolution, where a sphere is a practical realisation of quasi-point contact surface without which a point force would not be able to exert an impact onto non-viscous fluid. At every space location, the resulting acoustic field is described by a pair of physical variables characterising the time evolution of...

  • Variable Speed AC Drives with Inverter Output Filters

    Publikacja

    - Rok 2015

    The advance of variable speed drives systems (VSDs) engineering highlights the need of specific technical guidance provision by electrical machines and drives manufacturers, so that such applications can be properly designed to present advantages in terms of both energy efficiency and expenditure. This book presents problems and solutions related to inverter-fed electrical motors. Practically orientated, the book describes the...

  • Revisiting Toroidal Dipolar Moment in Planar Metamaterial

    This article revisits the electric, magnetic, and toroidal dipolar moments in the metamaterial structure and presents the flatland design for generating a toroidal dipolar response for the electromagnetic plane wave at normal incidence. Based on the numerical analysis of the surface current, the electric field, the magnetic field, and the quantitative analysis of scattered power supported by the electromagnetic multipole theory,...

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  • BE OPEN European forum and oBsErvatory for OPEN science in transport

    Projekty

    Kierownik projektu: dr Anna Wałek   Program finansujący: HORYZONT 2020

    Projekt realizowany w Biuro Biblioteki Głównej zgodnie z porozumieniem 824323 — BE OPEN — H2020-MG-2018-2019-2020/H2020-MG-2018-SingleStage-INEA z dnia 2018-12-03

  • NONSTRUCTURAL STIFFNESS ASSESSMENT IN INSTRUMENTED STEEL BUILDINGS

    Publikacja

    - Rok 2024

    Lateral stiffness of nonstructural components may significantly influence the initial stiffness of the entire structure and consequently alter its dynamic characteristics. While methods for simulating structural members are well-established, approaches for modeling nonstructural components that also participate in seismic response are notably less developed. In this paper a simplified, physically-intuitive approach for estimating...

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  • Modeling of the Two-Dimensional Flow Caused by Sea Conditions and Wind Stresses on the Example of Dead Vistula

    Publikacja

    The article presents the results of two-dimensional modeling of flows caused by the sea conditions and wind stresses on the example of Dead Vistula. Based on the available bathymetric data, a numerical model of the river section was created, which was supplemented with data on the position of the water table depending on hydrometeorological conditions. To describe the flow field in steady conditions, a simplified model of two-dimensional...

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  • The In-Depth Studies of Pulsed UV Laser-Modified TiO2 Nanotubes: The Influence of Geometry, Crystallinity, and Processing Parameters

    Publikacja

    - Nanomaterials - Rok 2020

    The laser processing of the titania nanotubes has been investigated in terms of morphology, structure, and optical properties of the obtained material. The length of the nanotubes and crystallinity, as well as the atmosphere of the laser treatment, were taken into account. The degree of changes of the initial geometry of nanotubes were checked by means of scanning electron microscopy, which visualizes both the surface and the cross-section....

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  • Numerical evaluation of dynamic response of an experimentally tested base-isolated and fixed-base steel structure model

    Publikacja

    Seismic isolation is recognized as one of the most popular and effective methods of protecting structures during earthquake. The present paper is focused on the comparison be-tween the dynamic responses of buildings with fixed and isolated bases exposed to seismic exci-tations. The aim of the study is to investigate the effectiveness of a simplified base isolation numerical modelling technique using the linear springs. One-storey...

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  • Investigation on Damage-Involved Structural Response of Colliding Steel Structures during Ground Motions

    Earthquakes are the most unpredictable damaging loads which can affect civil engineering structures. Due to insufficient separation distance between adjacent structures with different dynamic properties, structural collisions may occur during ground motions. Although the research on structural pounding has recently been much advanced, the studies have mainly been conducted for concrete structures. The aim of this paper is to show...

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