Year 2019

• Dynamic tests of composite footbridge segment – experimental and numerical studies

  Publication

  • T. Wiczenbach
  • T. Ferenc
  • Ł. Pyrzowski
  • J. Chróścielewski

  - MATEC Web of Conferences - Year 2019

  Experimental dynamic tests and numerical simulations of a 3 meters long segment of a footbridge made of polymer composites are presented in the paper. The span-length is reduced, however dimensions of cross-section are the same as the target footbridge. The segment structure is made of sandwich panels, which consist of fibre reinforced polymer (GFRP) laminates (skins) and a PET foam (core). The first part of the paper contains...

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• Dynamic modeling of non-cylindrical curved viscoelastic single-walled carbon nanotubes based on the second gradient theory

  Publication

  • M. Malikan
  • V. B. Nguyen
  • R. Dimitri
  • F. Tornabene

  - Materials Research Express - Year 2019

  This paper is devoted to the theoretical study of the dynamic response of non-cylindrical curved viscoelastic single-walled carbon nanotubes (SWCNTs). The curved nanotubes are largely used in many engineering applications, but it is challenging in understanding mechanically the dynamic response of these curved SWCNTs when considering the influences of the material viscosity. The viscoelastic damping effect on the dynamic response...

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• Dynamic deformations tests of Ni3Al based intermetallic alloy by using the split Hopkinson pressure bar technique

  Publication

  • P. Jozwik
  • M. Kopec
  • W. Polkowski
  • Z. Bojar
  • M. Kopec

  - Journal of Mining and Metallurgy Section B-Metallurgy - Year 2019

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• Dynamic Bankruptcy Prediction Models for European Enterprises

  Publication

  • T. Korol

  - Journal of Risk and Financial Management - Year 2019

  This manuscript is devoted to the issue of forecasting corporate bankruptcy. Determining a firm’s bankruptcy risk is one of the most interesting topics for investors and decision-makers. The aim of the paper is to develop and to evaluate dynamic bankruptcy prediction models for European enterprises. To conduct this objective, four forecasting models are developed with the use of four different methods—fuzzy sets, recurrent and...

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Year 2020

• Dynamic Tests and Technical Monitoring of a Novel Sandwich Footbridge

  Publication

  • J. Chróścielewski
  • M. Miśkiewicz
  • Ł. Pyrzowski
  • M. Rucka
  • B. Sobczyk
  • K. Wilde
  • B. Meronk

  - Year 2020

  A novel sandwich composite footbridge is described in this paper, for the first time after it has been put into operation over the Radunia River in the Pruszcz Gdański municipality. This paper presents results of dynamic tests and describes technical monitoring of the footbridge. The dynamic tests were conducted to estimate pedestrian comfort and were compared with the ones from numerical simulations made in the environment of...

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• Dynamic Response of the Suspended on a Single Cable Footbridge

  Publication

  • M. Miśkiewicz
  • Ł. Pyrzowski
  • K. Wilde

  - Year 2020

  The article presents numerical simulations, dynamic in situ load tests and a structural health monitoring (SHM) system installed in a suspended on a single cable footbridge. Numerical simulations performed prior to construction indicated the possibility of structural dynamics problems, finally confirmed in the course of dynamic test loading. In the dynamic load course the bridge deck developed vibrations displaying accelerations...

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• Dynamic Charging of Electric Buses as a Way to Reduce Investment Risks of Urban Transport System Electrification

  Publication

  • M. Bartłomiejczyk
  • M. Połom

  - Year 2020

  Night charging and fast charging are currently the two most common systems for charging electric buses. Despite the fact that numerous trial installations were started, neither of these two systems has obtained unqualified approval of the users. The alternative is to charge vehicles in motion - dynamic charging which combines the advantages of trolleybus transport and of electric buses. One of the advantages is the reduction of...

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• Dynamic Behavior of Aluminum Alloy Aw 5005 Undergoing Interfacial Friction and Specimen Configuration in Split Hopkinson Pressure Bar System at High Strain Rates and Temperatures

  Publication

  • A. Bendarma
  • T. Jankowiak
  • A. Rusinek
  • T. Lodygowski
  • B. Jia
  • M. Miguélez
  • M. Klosak

  - Materials - Year 2020

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• Dynamic analysis of temporary steel grandstand subjected to human-induced excitations due to jumping

  Publication

  • N. Lasowicz
  • R. Jankowski

  - AIP Conference Proceedings - Year 2020

  Steel grandstands are structures that are frequently used during sport games and many other non-sporting events, such as festivals, music concerts, or even politicians rallies, with participation of a large number of attendees. Unfortunately, the presence of unexpected excessive dynamic loads due to unpredictable behaviour of spectators (e.g. synchronized harmonic jumping or swaying) may lead to...

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• Dylematy sakramentu pokuty i pojednania w kontekście nadużyć seksualnych wobec nieletnich w świetle nauczania papieża Franciszka

  Publication

  • W. Kućko

  - Teologia i Moralność - Year 2020

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Year 2003

• Dynamic systems with liquid membrane and cationic surfactant (benzyldimethyltetradecylammonium Chlioride)

  Publication

  • M. Szpakowska
  • E. Płocharska-Jankowska

  - Year 2003

  Zbadano oscylacje różnicy potencjałów elektrochemicznych między fazami wodnymi oscylatora zawierającego kationowy surfaktant i chlorek sodu jako substancja odpowiedzialna za smak słony w zależności od rodzaju materiału membrany ciekłej. Na podstawie transformacji Gabora wykazano, że badane układy mają elementy chaosu deterministycznego.

• Dynamic range comparison of voltage-mode and current-mode state-space Gm-Cbiquad filters in reciprocal structures

  Publication

  • S. Kozieł
  • S. Szczepański

  - IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS - Year 2003

  W pracy dokonano porównania zakresu dynamicznego bikwadratowych filtrówGm-C zmiennych stanu, których struktury układowe oparte są na zasadzie tran-sformacji układu dołączonego. Przeprowadzono rozważania teoretyczne w wynikuktórych określono ogóne formuły zakresu dynamicznego dla klasy filtrów Gm-Ctrybu napięciowego i prądowego. Weryfikacja rezultatów teoretycznych byłazrealizowana za pomocą symulatora SPICE.

• Dynamic load balancing with data partitioning for efficient paralel compu-ting.**2003, 227 s. 214 rys. 9 tab. bibliogr. 160 poz. maszyn. Rozprawa doktorska /14.01.2003/ Wydz. ETI Promotor: prof. dr hab. inż. H. Krawczyk. Dynamiczne równoważenie obciążenia z podziałem danych dla efektywnego prze-twarzania równoległego.

  Publication

  • P. Czarnul

  - Year 2003

  ...

• Dynamic elektrochemical impedance spectroscopy measurements of passive layer cracking under static tensile stresses.

  Publication

  • K. Darowicki
  • J. Orlikowski
  • A. Arutunow

  - JOURNAL OF SOLID STATE ELECTROCHEMISTRY - Year 2003

  Dynamiczna elektrochemiczna spektroskopia impedancyjna umożliwia badanie podatności i odporności korozyjnej różnych materiałów konstrukcyjnych, a w szczególności określenie właściwości elektrochemicznych warstw pasywnych występujących na ich powierzchni. W wielu przypadkach pęknięcie warstwy pasywnej pod wpływem działania naprężeń rozciągających prowadzi do korozji naprężeniowej. Z tego względu badania pękania warstw pasywnych...

• Dynamic electrochemical impedance spectroscopy of the first order electrode reaction

  Publication

  • K. Darowicki
  • P. Ślepski

  - JOURNAL OF ELECTROANALYTICAL CHEMISTRY - Year 2003

  Ciągłe transformaty STFT sinusoidalnego sygnału pobudzenia i odpowiedzi prądowej zostały wyznaczone dla reakcji elektrodowej pierwszego rzędu. Wyznaczono impedancję elektrody w łącznej dziedzinie czasu i częstotliwości. Wykonano pomiary dla reakcji redukcji Cd(II) na rtęciowej elektrodzie kroplowej w funkcji potencjału. Przedstawiono możliwość wyznaczenia chwilowych widm impedancyjnych. Opisano zależność rezystancji przeniesienia...

• Dynamic current-voltage characteristics of dielectrics with extremely low heat conductivity

  Publication

  • W. Tomaszewicz
  • P. J. Grygiel
  • H. Sodolski

  - Visnyk Lviv Univ. s.Physics - Year 2003

  Zaprezentowano teoretyczny opis metody dynamicznych charakterystyk prądowo-napięciowych w przypadku znacznego gradientu temperatury w ciałach stałych o przewodności jonowej. Otrzymano rozwiązania równania transportu oraz równania charakterystyk, odnoszące się do ruchu cienkiej warstwy nośników ostałej grubości oraz warstwy rozszerzającej się. Podano także przybliżone wyrażenia opisujące czas przelotu nośników. Wyniki zweryfikowano...

• Dynamic characteristics of interaperitoneal perfusion.

  Publication

  • J. Sawicki
  • S. Sawicki
  • D. Wydra
  • K. Ciach
  • J. Emerich

  - Acta of Bioengineering and Biomechanics - Year 2003

  Przedstawiono wyniki badań laboratoryjnych perfuzyjnego przepływu przez model jamy brzusznej człowieka. Szczególną uwagę zwrócono na techniczne aspekty modelu oraz wyników badań. Omówiono technikę pomiarową oraz przeanalizowano rezultaty pod kątem teorii przepływów przez zbiorniki i reaktory.

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• Dylematy rozwoju rynków energii odnawialnej

  Publication

  • P. Bućko

  - Rynek Energii - Year 2003

  W artykule przedstawiono mechanizmy wsparcia rozwoju źródeł energii wykorzystujących zasady energii odnawialnej. Przedstawiono stosowane w Unii Europejskiej zasady obrotu energią elektryczną ze źródeł odnawialnych.

Year 2011

• Dynamic Study of Dual High-Power Impulse Magnetron Sputtering Discharge by Optical Emission Imaging

  Publication

  • V. Stranak
  • R. Bogdanowicz
  • S. Drache
  • M. Cada
  • Z. Hubicka
  • R. Hippler
  • R. Bogdanowicz

  - IEEE TRANSACTIONS ON PLASMA SCIENCE - Year 2011

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• Dynamic Compatibility Matching of Services for Distributed Workflow Execution

  Publication

  • P. Czarnul
  • M. Wójcik

  - Year 2011

  The paper presents a concept and an implementation of dynamic learn-ing of compatibilities of services used in a workflow application. While services may have the same functionality, they may accept input and produce output in different formats. The proposed solution learns matching of outputs and inputs at runtime and uses this knowledge in subsequent runs of workflow applications. The presented solution was implemented in an...

• Dynamic analysis of the first stage compressor bladed disc of an aircraft engine

  Publication

  • R. Rządkowski
  • M. Drewczyński
  • M. Soliński
  • A. Maurin
  • A. Maciejewska
  • R. Szczepanik

  - Journal of Machine Construction and Maintenance - Year 2011

• Dynamic Analysis of Enterprise Business Scenarios

  Publication

  • Ł. Budnik
  • H. Krawczyk

  - Year 2011

  W artykule przedstawiono system wspomagający projektowanie i poprawęscenariuszy procesów biznesowych. Scenariusze są wykonywane oraz monitorowane w środowisku SOA. Zaproponowany system oferuje dynamiczne gromadzenie i ocenianie metryk scenariuszy. Na podstawie wyników analizy wydajność, jakość oraz użyteczność scenariuszy są ulepszane. Dzięki elastycznemu API, system obsługuje dowolną rozszerzalną technologię wykonania scenariuszy...

Year 2013

• Dynamic state assessment of the water turbine with the power of 600 kW

  Publication

  • G. Żywica
  • P. Bagiński
  • Ł. Breńkacz

  - Diagnostyka - Year 2013

  The article discusses the results of experimental studies to assess the dynamic state of the turbine set with the Kaplan turbine. The dynamic assessment was made on the basis of appropriate standards, based on the measurement results of selected parameters of vibration, which have been measured for several states of the machine load. In addition, we attempted to identify the causes of the increased vibration levels based on the...

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• Dynamic Positioning System with Vectorial Backstepping Controller

  Publication

  • A. Witkowska

  - Year 2013

  The problem of synthesis a dynamic positioning system for low frequency model of surface vessel was considered in this paper. The recursive vectorial backstepping control design was used to keep a fixed position and heading in presence of wave disturbances. The passive observer was introduced to smooth the measurements and to estimate the velocities needed for the control algorithm. Some parameters of observer were optimized off-line...

• DYNAMIC MECHANICAL BEHAVIOUR OF GFRP COMPOSITES WITH SiO2 NANO PARTICLES REINFORCED EPOXY MATRIX

  Publication

  • M. Landowski
  • M. Budzik
  • K. Imielińska

  - Advances in Materials Science - Year 2013

  Dynamic mechanic (DMA) tests were performed to compare the mechanical behaviour of glass fibre reinforced epoxy laminate composites with SiO2 nanoparticle reinforced matrix. The selection of the most promising nanoparticle concentrations was considered in terms of elastic modulus and glass transition temperature. The reference specimens (0% nanoparticles) did not contain diluent accordingly the results do not allow the exact comparison...

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• Dynamic host configuration protocol for IPv6 improvements for mobile nodes

  Publication

  • T. Mrugalski
  • J. Woźniak
  • K. Nowicki

  - TELECOMMUNICATION SYSTEMS - Year 2013

  In wireless networks mobile clients change their physical location, which results in changing point of attachment to the network. Such handovers introduce unwanted periods, when node does not have communication capabilities. Depending on many conditions, such events may require reconfiguration of layer 2 (e.g. IEEE 802.16) or both 2 and 3 layers (IPv6). This paper investigates delays introduced in the latter type of handover. IPv6...

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• Dynamic Content Internationalization in Web Applications

  Publication

  • M. Wójcik
  • W. Korłub

  - Year 2013

  This paper shows a concept for providing dynamic internationalization to web applications. Presented work is based on the Java Web Platform but described concepts can be successfully implemented on other platforms. It shows how textual data being part of web pages static and dynamic content can be localized dynamically during application runtime. All concepts presented were or are still being developed in an existing conference...

• Dynamic Bayesian Networks for Symbolic Polyphonic Pitch Modeling

  Publication

  • S. Raczyński
  • E. Vincent
  • S. Sagayama

  - IEEE Transactions on Audio Speech and Language Processing - Year 2013

  Symbolic pitch modeling is a way of incorporating knowledge about relations between pitches into the process of an- alyzing musical information or signals. In this paper, we propose a family of probabilistic symbolic polyphonic pitch models, which account for both the “horizontal” and the “vertical” pitch struc- ture. These models are formulated as linear or log-linear interpo- lations of up to fi ve sub-models, each of which is...

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• Dynamic analysis of the impact of the wind spectrum according to the theory of Davenport for lightweight structures of the roof in sports hall Czyzyna in Cracow.

  Publication

  • K. Grębowski

  - Year 2013

  The main aim of this analysis is to characterize numerical simulations connected with modeling dynamic influence of wind on the lightweight structures of the roof in sports hall – “Czyżyna”. This hall is built in Cracow. The article also involves the proposals of the solutions connected with dynamic influence of the wind – Davenport’s method has been used. These proposals have not been taken into consideration at the detailed engineering...

Year 2004

• Dynamic stability and spatial heterogeneity in the indyvidual-based modelling of a Lotka-Volterra gas.

  Publication

  • W. Jędruch
  • J. Waniewski
  • N. S. Żołek

  - Year 2004

  Przedstawiono wyniki symulacji systemu drapieżnik-ofiara. Dynamika populacji jest opisana oddziaływaniami typu Lotki Volterry ala uzyskane efekty przestrzenne różnia się od rozwiązań równań Lotki Voltery. Do analizy wyników symulacji uzyto miary entropii i korelacji. Entropia oscyluje w rytmie zgodnym z całą populacją, zaś średnie wartości korelacji skrosnej są zależne od rozmiarów okna obserwacji.

• Dynamic electrochemical impedance spectroscopy measurements of passive layer cracking under static tensile stresses

  Publication

  • K. Darowicki
  • J. Orlikowski
  • A. Arutunow

  - JOURNAL OF SOLID STATE ELECTROCHEMISTRY - Year 2004

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• Dynamic electrochemical impedance spectroscopy measurements of passive layer cracking under static tensile stresses.

  Publication

  • K. Darowicki
  • J. Orlikowski
  • A. Arutunow

  - Year 2004

  Dynamiczna Elektrochemiczna Spektroskopia Impedancyjna umożliwia badanie podatności i odporności korozyjnej różnych materiałów konstrukcyjnych, a w szczególności określenie właściwości elektrochemicznych warstw pasywnych występujących na ich powierzchni. W wielu przypadkach pęknięcie warstwy pasywnej pod wpływem działania naprężeń rozciągających prowadzi do korozji naprężeniowej. Z tego względu badania pękania warstw pasywnych...

• Dynamic effects during emptying of large silos.

  Publication

  • M. Niedostatkiewicz

  - Year 2004

  Publikacja obejmuje zagadnienie rezonansowych efektów dynamicznych występujących podczas opróżniania silosów zawierających materiały sypkie

• Dynamic effect of the vehicle passing under lightweight footbridge.

  Publication

  • K. Żółtowski
  • J. Piechna
  • P. Żółtowski

  - Year 2004

  The paper describes a numerical study of dynamic response of cable-stayed steel footbridge for a big lorry passing underneath. The footbridge is an existing object crossing Wolska street in Warsaw. The structural model of footbridge was verified by dynamic test loading. A numerical study of a vehicle passing under footbridge is presented. 2D and 3D incompressible flow fields are modeled using sliding mesh in transient CFD computation....

• Dynamic analysis including special constitutive model for PVC-coated fabrics.

  Publication

  • A. Ambroziak
  • P. Kłosowski

  - Year 2004

  W pracy przestawiono dynamiczne obliczenia membranowego przekrycia wiszącego w kształcie paraboloidy hiperbolicznej poddanej impulsowemu działaniu wiatru. Do opisu zachowania się powleczonej polichlorkiem winylu tkaniny technicznej zastosowano równania konstytutywne modelu sieci gęstej z uwzględnieniem sprężystych i sprężysto-lepkoplastycznych właściwości wątku i osnowy.

Year 2015

• Dynamic soil improvement by hybrid technologies

  Publication

  • M. Wyroślak

  - Year 2015

  Hybrid method of subsoil improvement for road embankment foundation is described. This method is composed of two wellknown methods: dynamic replacement (DR) and microblasting (DDC) one (Deep Dynamic Compaction). The method was used for both the strengthening of the fully saturated organic subsoil as well as for acceleration of the consolidation of the organic layers. The practice ensures the expected results. A proper example on...

• Dynamic Re-Clustering Leach-Based (Dr-Leach) Protocol for Wireless Sensor Networks

  Publication

  • A. Ijjeh
  • A. Ijjeh
  • H. Al-Issa
  • S. Thuneibat

  - International Journal of Computer Networks & Communications (IJCNC) - Year 2015

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• Dynamic model of nuclear power plant turbine

  Publication

  • K. Kulkowski
  • A. Kobylarz
  • M. Grochowski
  • K. Duzinkiewicz

  - Archives of Control Sciences - Year 2015

  The paper presents the dynamic multivariable model of Nuclear Power Plant steam turbine. Nature of the processes occurring in a steam turbine causes a task of modeling it very difficult, especially when this model is intended to be used for on-line optimal process control (model based) over wide range of operating conditions caused by changing power demand. Particular property of developed model is that it enables calculations...

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• Dynamic model of nuclear power plant steam turbine

  Publication

  • K. Kulkowski
  • A. Kobylarz
  • M. Grochowski
  • K. Duzinkiewicz

  - Archives of Control Sciences - Year 2015

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• DYNAMIC ANALYSIS OF THE IMPACT OF VIBRATION ON HISTORICAL BUILDINGS - AN OWN PROJECT OF EXTERNAL STAIRCASE

  Publication

  • M. Zielińska
  • M. Wojtkiewicz (formerly: M. Golińska)

  - Year 2015

  This article presents numerical simulations that concern modeling of interaction of the external staircase’s construction with the observation deck on historic water tower located at Gdansk University of Technology. The interaction occurring according to various methods of the staircase's construction support on the wall of the historic tower was compared. The external staircase that allows for entering onto the monument was subjected...

• DYNAMIC ANALYSIS OF HISTORIC RAILWAY BRIDGES IN POLAND IN THE CONTEXT OF ADJUSTING THEM TO PENDOLINO TRAINS

  Publication

  • K. Grębowski
  • M. Zielińska

  - International Journal of Applied Mechanics and Engineering - Year 2015

  The article presents the dynamic analysis of the historic railway bridge in Tczew as an example of the usefulness of such type of bridge for high-speed trains. The model of the bridge and the simulation of rolling stock passage was performed in SOFISTIK program. The scope of work includes experimental studies, the solution of the problem concerning the correct solution features dynamic model takes into account the dependencies...

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• Dylematy wyboru geosyntetyków w konstrukcjach

  Publication

  • A. Bolt

  - Magazyn Autostrady - Year 2015

  Przedstawiono problemy wyborudylematy związane z wyborem rodzaju konstrukcji oraz rodzaju Przedstawiono problemy związane z wyborem wyrobu geosyntetycznego z uwzględnieniem kryteriów technicznych i ekoniomicznych możliwych rozwiązań.

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Year 2005

• Dynamic simulation as a tool for evaluation of the nitrogen removal capabilities at the "Gdańsk-Wschód" WWTP

  Publication

  • J. Mąkinia
  • M. Swinarski
  • K. Rosenwinkel

  - Year 2005

  Celem badań było przedstawienie możliwości zastosowania złożonego modelu biokinetycznych ASM2d do symulacji procesu usuwania azotu w oczyszczalni ścieków ''Wschód'' w Gdańsku. Szybkość procesów nitryfikacji i denitryfikacji została wyznaczona w warunkach laboratoryjnych za pomocą tzw. testów zlewkowych. Wyniki tych badań zostały wykorzystane do kalibracji modelu, w trakcie której zmieniano wartości tylko 5 parametrów kinetycznych....

• Dynamic Perfect hashing with finite-state automata

  Publication

  • J. Daciuk
  • D. Maurel
  • A. Savary

  - Year 2005

  Minimalna doskonała funkcja mieszająca dostarcza odwzorowania zbioru n niepowtarzalnych słów w zwarty zakres n liczb całkowitych. Gdy jest realizowane za pomocą automatów skończonych, odwzorowanie wynika z porządku słów (zwykle alfabetycznego) w zbiorze. Dodanie nowych słów zmieniłoby porządek słów rozpoznawanych przez automat, zmieniając całe odwzorowanie i czyniąc je bezużytecznym w wielu dziedzinach. Dlatego nazywamy je statycznym....

• Dynamic hand-written signature verification using a matched filter

  Publication

  • E. Hermanowicz
  • M. Papaj
  • A. Paruzel
  • M. Rojewski

  - Year 2005

  W pracy zaproponowano nowe podejście do weryfikacji dynamicznego podpisu odręcznego. Podpis jest traktowany jako sygnał telekomunikacyjny, który można wykryć i zwerfikować za pomocą odbiornika optymalnego z filtrem dopasowanym. Wymaga to uprzedniej unifikacji i normalizacji parametrów biernych podpisu aktualnego, jak również podpisów zgromadzonych w bazie, celem ułatwienia podejmowania decyzji. Normalizację długości podpisu uzyskano...

• Dynamic control of the receiving beam horizontal cross-section in the side scan sonar

  Publication

  • A. Jedel
  • L. Kilian
  • J. Marszal
  • Z. Ostrowski
  • R. Salamon

  - Year 2005

  W skonstruowanych przed kilkunastu laty a obecnie modernizowanych sonarach bocznych jako jeden z zabiegów modernizacyjnych wprowadzono dynamiczną regulację kąta rozwarcia odbiorczej charakterystyki kierunkowej w przekroju horyzontalnym. Regulacja taka zapewnia quasi-stałą rozdzielczość liniową sonaru (zamiast stałej rozdzielczości kątowej) przy odbiorze sygnałów echa ze wzrastających odległości od wykrywanych celów. W efekcie tego...

Year 2021

• Dynamic Signature Vertical Partitioning Using Selected Population-Based Algorithms

  Publication

  • M. Zalasiński
  • T. Niksa-Rynkiewicz
  • K. Cpałka

  - LECTURE NOTES IN COMPUTER SCIENCE - Year 2021

  The dynamic signature is a biometric attribute used for identity verification. It contains information on dynamics of the signing process. There are many approaches to the dynamic signature verification, including the one based on signature partitioning. Partitions are the regions created on the basis of signals describing the dynamics of the signature. They contain information on the shape of the signature characteristic of a...

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• Dynamic Route Discovery Using Modified Grasshopper Optimization Algorithm in Wireless Ad-Hoc Visible Light Communication Network

  Publication

  • S. Vadivel
  • S. Konda
  • K. R. Balmuri
  • A. Stateczny
  • B. D. Parameshachari

  - Electronics - Year 2021

  In recent times, visible light communication is an emerging technology that supports high speed data communication for wireless communication systems. However, the performance of the visible light communication system is impaired by inter symbol interference, the time dispersive nature of the channel, and nonlinear features of the light emitting diode that significantly reduces the bit error rate performance. To address these problems,...

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• Dynamic Modeling of COVID-19 Disease with Impact of Lockdown in Pakistan and Malaysia

  Publication

  • V. K. Oad

  - Year 2021

  Being researchers, it is an utmost responsibility to provide insight on social issues thus, this work addresses the dynamic modeling of first and most contagious disease named as COVID-19 caused by coronavirus. The first case of COVID-19 appeared in Pakistan was on 26th February 2020 and in Malaysia on 27th February 2020; both patients had foreign travel history. In the paper, the number of total affected cases and total deaths...

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• Dynamic mechanical properties and flexing fatigue resistance of tire sidewall rubber as function of waste tire rubber reclaiming degree

  Publication

  • Z. Zhang
  • Z. Peng
  • K. Formela
  • S. Wang

  - JOURNAL OF APPLIED POLYMER SCIENCE - Year 2021

  A stepwise downsizing method of gel particles in reclaimed rubber to a micro-nano scale and its excellent dynamic performance in tire sidewall were introduced by this work. The results showed that the size of gel particles decreased from several micrometers to micro-nanometers with the increase of reclaiming degree, accompanied by reduced molecular weight and widened molecular weight distribution of sol fraction. The addition of...

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Year 2017

• Dynamic Signal Strength Mapping and Analysis by Means of Mobile Geographic Information System

  Publication

  • M. Kulawiak
  • W. Wycinka

  - Metrology and Measurement Systems - Year 2017

  Bluetooth beacons are becoming increasingly popular for various applications such as marketing or indoor navigation. However, designing a proper beacon installation requires knowledge of the possible sources of interference in the target environment. While theoretically beacon signal strength should decay linearly with log distance, on-site measurements usually reveal that noise from objects such as Wi-Fi networks operating in...

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• DYNAMIC RESPONSE OF FORUM GDANSK STRUCTURE DUE TO RAIL TRAFFIC

  Publication

  • M. Miśkiewicz
  • Ł. Pyrzowski
  • M. Rucka
  • K. Wilde
  • J. Chróścielewski

  - Archives of Civil Engineering - Year 2017

  The paper presents the study of the impact of vibration induced by the movement of the railway rolling stock on the Forum Gdańsk structure. This object is currently under construction and is located over the railway tracks in the vicinity of the Gdańsk Główny and Gdańsk Śródmieście railway stations. The analysis covers the influence of vibrations on the structure itself and on the people within. The in situ measurements on existing...

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• Dynamic Research of Masonry Vault in a Technical Scale

  Publication

  • M. Gołębiewski
  • I. Lubowiecka
  • M. Kujawa

  - Year 2017

  The paper presents preliminary results of dynamic tests of the masonry barrel vault in a technical scale. Experimental studies are intended to identify material properties of homogenized masonry vaults under dynamic loads. The aim of the work is to create numerical models to analyse vault’s dynamic response to dynamic loads in a simplest and accurate way. The process of building the vault in a technical scale is presented in the...

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• Dynamic Headspace Sampling as an Initial Step for Sample Preparation in Chromatographic Analysis

  Publication

  • W. Wojnowski
  • T. Majchrzak
  • T. Dymerski
  • J. Gębicki
  • J. Namieśnik

  - JOURNAL OF AOAC INTERNATIONAL - Year 2017

  This work represents a brief summary of the use of dynamic headspace (DHS) as a technique for sample preparation in chromatographic analysis. Despite numerous developments in the area of analyte isolation and enrichment, DHS remains one of the fundamental methods used with GC. In our opinion, interest in this technique will not diminish significantly because it conforms to stipulations of green analytical chemistry. Moreover, DHS...

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• Dynamic GNSS Mission Planning Using DTM for Precise Navigation of Autonomous Vehicles

  Publication

  • A. Nowak

  - JOURNAL OF NAVIGATION - Year 2017

  Nowadays, the most widely used method for estimating location of autonomous vehicles in real time is the use of Global Navigation Satellite Systems (GNSS). However, positioning in urban environments using GNSS is hampered by poor satellite geometry due to signal obstruction created by both man-made and natural features of the urban environment. The presence of obstacles is the reason for the decreased number of observed satellites...

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• Dynamic Analysis of the Turnout Diverging Track for HSR with Variable Curvature Sections

  Publication

  • W. Koc
  • K. Palikowska

  - World Journal of Engineering and Technology - Year 2017

  The paper presents an analytical method of identifying the curvature of the turnout diverging track consisting of sections of varying curvature. Both linear and nonlinear (polynomial) curvatures of the turnout diverging track are identified and evaluated in the paper. The presented method is a universal one, it enables to assume curvature values at the beginning and end point of the geometrical layout of the turnout. The results...

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Year 2010

• Dynamic Semantic Visual Information Management

  Publication

  • J. Szymański
  • W. Duch

  - Year 2010

  Dominant Internet search engines use keywords and therefore are not suited for exploration of new domains of knowledge, when the user does not know specific vocabulary. Browsing through articles in a large encyclopedia, each presenting a small fragment of knowledge, it is hard to map the whole domain, see relevant concepts and their relations. In Wikipedia for example some highly relevant articles are not linked with each other....

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• Dynamic response of the PEM fuel cell to variable load conditions

  Publication

  • J. Cieśliński
  • T. Kaczmarczyk
  • B. Dawidowicz
  • S. Smoleń

  - Year 2010

  Opisano układ zasilania oparty na 2 ogniwach paliwowych typu PEM o mocy 1.2 kW każde. Omówiono problem ograniczenie ogniwa paliwowego przez drugą zasadę termodynamiki. Przedstawiono charakterystyki układu w zależności od sygnału obciążenia typu: skok jednostkowy, półsinusoidalny, trójkątny, prostokątny i trapezowy.

• Dynamic and tomography analysis of granular flow in cylindrical shell

  Publication

  • K. Wilde
  • J. Tejchman
  • M. Rucka
  • M. Niedostatkiewicz

  - Year 2010

  W pracy przedstawiono wyniki badań ekperymentalnych dotyczących efektów dynamicznych występujących podczas przepływu materiałów sypkich w silosie cylindrycznym.

Year 2008

• Dynamic risk assessment in autonomous vehicles motion planning

  Publication

  • A. Wardziński

  - Year 2008

  Arguing that an autonomous mobile system is sufficiently safe to operate in presence of other vehicles and objects is an important element in development of such systems. Traditional approach to assure safety is to distinguish between safe and unsafe area and prevent the autonomous vehicle from entering the unsafe area. The paper presents a model of autonomous vehicle control system which uses risk assessment...

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• Dynamic mechanical properties and thermal degradation process of the compositions obtainedfrom unsaturated poly(ester urethanes) cross-linked with styrene

  Publication

  • L. Jasińska
  • J. Haponiuk
  • A. Balas
  • J. Haponiuk

  - JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY - Year 2008

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• Dynamic mechanical properties and thermal degradation process of the compositions obtained from unsaturated poly(ester urethanes) cross-linked with styrene

  Publication

  • L. Jasińska-Walc
  • J. Haponiuk
  • A. Balas

  - JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY - Year 2008

  W pracy przedstawiono właściwości dynamiczno-mechaniczne oraz stabilność termiczną poli(estro uretanów) sieciowanych styrenem. Badane poli(estro uretany) syntetyzowano z nienasyconych oligomeroli opartych na cis-2-buten-1,4-diolu oraz 4,4`-diizocyjanianie difenylometanu. Wyniki badań dynamicznych właściwości mechanicznych otrzymanych poliuretanów potwierdziły separację fazową uzyskanych kompozycji. W pracy przedstawiono również...

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Year 2009

• Dynamic response of the PEM fuel cell to step change load

  Publication

  • J. Cieśliński
  • T. Kaczmarczyk
  • B. Dawidowicz
  • S. Smoleń

  - Year 2009

  Przedstawiono charakterystyki dynamiczne ogniwa paliwowego typu PEM o mocy 2.5 kW obciążanego sygnałem skokowym o wartościach od 1 A do 50 A.

• Dynamic load tests of piles in non-cohesive soils.

  Publication

  • T. Brzozowski
  • K. Gwizdała
  • Z. Sikora

  - Year 2009

  The results of investigations of various types of piles, the analysis of dynamic tests carried out recently in Poland and the correlations between the results of dynamic and static tests of piles are presented. Przedstawiono wyniki badań nośności różnych rodzajów pali, analizę badań dynamicznych wykonanych w Polsce w ostatnich latach oraz korelacje pomiędzy wynikami badań statycznych i dynamicznych.

• Dynamic inequalities and equations of Volterra type on time scales

  Publication

  • R. Agarwal
  • T. Jankowski
  • D. O'Regan

  - Dynamics of Continuous, Discrete and Impulsive Systems Series A: Mathematical Analysis - Year 2009

  Praca dotyczy całkowo-różniczkowych równań dynamicznych typu Volterry z warunkami początkowymi. Stosując twierdzenie Banacha o punkcie stałym pokazano istnienie jedynego rozwiązania liniowego równania dynamicznego. Stosując metodę iteracji monotonicznych pokazano istnienie rozwiązań ekstremalnych dla problemów nieliniowych. Badano też nierówności dynamiczne. Praca zawiera również uwagi dotyczące zagadnień różniczkowych i różnicowych.

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• Dynamic computation of acoustic field distribution in the city area employing a supercomputer

  Publication

  • M. Szczodrak

  - Year 2009

• Dynamic analysis of a satellite with feexible link

  Publication

  • K. Augustynek
  • E. Wittbrodt
  • I. Adamiec-Wójcik

  - Archive of Mechanical Engineering - Year 2009

  W artykule przedstawiono model przestrzenny satelity złożonego z dowolnej liczby podatnych ramion. Układ taki jest przykładem otwartego łańcucha kinematycznego o strukturze drzewa. Do dyskretyzacji członków podatnych zastosowano modyfikację metody sztywnych elementów skończonych. Równania ruchu wyprowadzono z równań Lagrange'a II rodzaju, stosując do opisu ruchu ciał współrzędne złączowe oraz przekształcenia jednorodne. W symulacjach...

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Year 2012

• Dynamic ranking of cloud providers

  Publication

  • P. Czarnul

  - Year 2012

  The paper focuses on how to create an effective dynamic ranking service for IaaS,PaaS and SaaS cloud providers. It considers building of a quality model for thispurpose along with definition of quality measurement procedures. The paper discussesseveral techniques known from already existing price comparison engines that couldbe modified and adopted for comparison of cloud providers. Furthermore, a tech-nique for filtering measured...

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• Dynamic OWL Ontology matching Using Lexical Wordnet-based Measures

  Publication

  • T. M. Boiński
  • H. Krawczyk

  - Studies & Proceedings of Polish Association for Knowledge Management - Year 2012

  Ontologies are often used as a means of describing knowledge and the domain of operation of modern applications. S need arises for the ability to quickly match those ontologies to enable interoperability of such systems. This paper presents an extension to Noy and McGuiness ontology construction methodology which should improve ontology interoperability and a lexicon-based algorithm for merging and aligning of such ontologies stored...

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• Dynamic electrochemical impedance spectroscopy and polarization studies to evaluate the inhibition effect of benzotriazole on copper-manganese-aluminium alloy in artificial seawater

  Publication

  • H. Gerengi
  • P. Ślepski
  • G. Bereket

  - MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION - Year 2012

  Przeprowadzono badania wpływu benzotriazolu (BTA) na korozję nowego typ mosiądzu (CMA) w środowisku syntetycznej wody morskiej przy użyciu dynamicznej elektrochemicznej spektroskopii impedancyjnej (DEIS), techniki polaryzacji rezystancyjnej i ekstrapolacji krzywych Tafela. Wyniki pomiarowe otrzymane przy użyciu tych metod wskazują spadek szybkości korozji wraz ze wzrostem stężenia BTA. Wskazuje to na inhibicyjne własności BTA w...

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• Dynamic coloring of graphs

  Publication

  • P. Borowiecki
  • E. Sidorowicz

  - FUNDAMENTA INFORMATICAE - Year 2012

  Dynamics is an inherent feature of many real life systems so it is natural to define and investigate the properties of models that reflect their dynamic nature. Dynamic graph colorings can be naturally applied in system modeling, e.g. for scheduling threads of parallel programs, time sharing in wireless networks, session scheduling in high-speed LAN's, channel assignment in WDM optical networks as well as traffic scheduling. In...

Year 2014

• Dynamic Properties of Two-Axle Freight Wagon with UIC Double-Link Suspension as a Non-smooth System with Dry Friction

  Publication

  • J. Matej
  • J. Seńko
  • J. Awrejcewicz

  - Year 2014

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• Dynamic Nanoimpedance Characterization of the Atomic Force Microscope Tip-Surface Contact

  Publication

  • M. Tobiszewski
  • A. Zieliński
  • K. Darowicki

  - MICROSCOPY AND MICROANALYSIS - Year 2014

  Nanoimpedance measurements, using the dynamic impedance spectroscopy technique, were carried out during loading and unloading force of a probe on three kinds of materials of different resistivity. These materials were: gold, boron-doped diamond, and AISI 304 stainless steel. Changes of impedance spectra versus applied force were registered and differences in the tip-to-sample contact character on each material were revealed. To...

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• Dynamic mass measurement in checkweighers using a discrete time-variant low-pass filter

  Publication

  • P. Pietrzak
  • M. Meller
  • M. Niedźwiecki

  - MECHANICAL SYSTEMS AND SIGNAL PROCESSING - Year 2014

  Conveyor belt type checkweighers are complex mechanical systems consisting of a weighing sensor (strain gauge load cell, electrodynamically compensated load cell), packages (of different shapes, made of different materials) and a transport system (motors, gears, rollers). Disturbances generated by the vibrating parts of such a system are reflected in the signal power spectra in a form of strong spectral peaks, located usually in...

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• Dynamic FE simulations of buckling process in thin-walled cylindrical metal silos

  Publication

  • P. Iwicki
  • J. Tejchman
  • J. Chróścielewski

  - THIN-WALLED STRUCTURES - Year 2014

  W artykule przedstawiono wyniki dynamicznej analizy wyboczeniowej cienkościennych silosów metalowych o przekroju kołowym. Analizy MES wykonano dla wstępnych imperfekcji geometrycznych o różnym kształcie i amplitudzie. Wyniki analizy dynamicznej porównano z analizami statycznymi.

• Dynamic Electrochemical Impedance Spectroscopy (DEIS) as a Tool for Analyzing Surface Oxidation Processes on Boron-Doped Diamond Electrodes

  Publication

  • J. Ryl
  • R. Bogdanowicz
  • P. Slepski
  • M. Sobaszek
  • K. Darowicki

  - JOURNAL OF THE ELECTROCHEMICAL SOCIETY - Year 2014

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• Dynamic Electrochemical Impedance Spectroscopy (DEIS) as a Tool for Analyzing Surface Oxidation Processes on Boron-Doped Diamond Electrodes

  Publication

  • J. Ryl
  • R. Bogdanowicz
  • P. Ślepski
  • M. Sobaszek
  • K. Darowicki

  - JOURNAL OF THE ELECTROCHEMICAL SOCIETY - Year 2014

  Surface oxidation processes play a key role in understanding electrochemical properties of boron-doped diamond (BDD) electrodes. The type of surface termination groups, which create the potential window of electrolytic water stability or hydrophobicity, influences such properties. In this study the kinetics of oxidation process under anodic polarization were studied in situ by means of Dynamic Electrochemical Impedance Spectroscopy...

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• Dynamic Data Management Among Multiple Databases for Optimization of Parallel Computations in Heterogeneous HPC Systems

  Publication

  • P. Rościszewski

  - Year 2014

  Rapid development of diverse computer architectures and hardware accelerators caused that designing parallel systems faces new problems resulting from their heterogeneity. Our implementation of a parallel system called KernelHive allows to efficiently run applications in a heterogeneous environment consisting of multiple collections of nodes with different types of computing devices. The execution engine of the system is open for...

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• Dynamic analysis of lightweight structure of the Viaduct Millau in France subjected to the wind fluctuations described by Karman’s and Davenport’s spectrum

  Publication

  • M. Zielińska
  • K. Grębowski

  - Year 2014

  The article presents numerical simulations for wind impact modelling on the Millau Viaduct structure in France performed with two independent spectrum generation methods. The viaduct's construction in affected by strong forces, as it is situated in the Tarn river's valley. Thus, the loading coming from the wind cannot be modelled, the way it is in case of simple structures as static loading, but as a loading in a form of a spectrum...

Year 2022

• Dynamic Positioning Capability Assessment for Ship Design Purposes

  Publication

  • A. Piekło
  • A. Witkowska
  • T. Zubowicz

  - Year 2022

  The article focuses on solving a problem of optimal thrust distribution over the actuators in a ship Dynamic Positioning, according to DNV-ST-0111 standard, Level 1. The classic Quadratic Programming approach is combined with the numerical solusion used to handle the propeller with the rudder constraints in the optimization task and the influence between thrusters and skeg. It is presented as an efficient method of minimizing the...

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• Dynamic fracture of brittle shells in a space-time adaptive isogeometric phase field framework

  Publication

  • K. Paul
  • T. Hughes
  • C. Landis
  • R. Sauer

  - Year 2022

  Phase field models for fracture prediction gained popularity as the formulation does not require the specification of ad-hoc criteria and no discontinuities are inserted in the body. This work focuses on dynamic crack evolution of brittle shell structures considering large deformations. The energy contributions from in-plane and out-of-plane deformations are separately split into tensile and compressive components and the resulting...

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• Dynamic Analysis of an Enhanced Multi-Frequency Inertial Exciter for Industrial Vibrating Machines

  Publication

  • V. Gursky
  • P. Krot
  • V. Korendiy
  • R. Zimroz

  - Machines - Year 2022

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• Dylematy zarządzania adaptacyjnego projektem w przedsiębiorstwie mediowym

  Publication

  • A. Pegani, MBA

  - Year 2022

  Artykuł dotyczy zarządzania mediami, dlatego odpowiednio zaprezentowano próbę możliwego podejścia opartego na zwinnych metodologiach zarządzania projektami. Artykuł przedstawia kolejno media i zarządzanie nimi (przegląd literatury), charakterystykę projektów mediowych, zwinne zarządzanie projektami, analizę zwinnego podejścia i zarządzania mediami wraz z propozycją nowego pomysłu,...

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Year 2023

• DYNAMIC POSITIONING CAPABILITY ASSESSMENT BASED ON OPTIMAL THRUST ALLOCATION

  Publication

  • A. Piekło
  • A. Witkowska
  • T. Zubowicz

  - Polish Maritime Research - Year 2023

  The article presents an efficient method of optimal thrust allocation over the actuators in a dynamically positioned ship, according to the DNV-ST-0111 standard, Level 1. The optimisation task is approximated to a convex problem with linear constraints and mathematically formulated as quadratic programming. The case study is being used to illustrate the use of the proposed approach in assessing the DP capability of a rescue ship....

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• Dynamic GPU power capping with online performance tracing for energy efficient GPU computing using DEPO tool

  Publication

  • A. Krzywaniak
  • P. Czarnul
  • J. Proficz

  - Future Generation Computer Systems-The International Journal of Grid Computing-Theory Methods and Applications - Year 2023

  GPU accelerators have become essential to the recent advance in computational power of high- performance computing (HPC) systems. Current HPC systems’ reaching an approximately 20–30 mega-watt power demand has resulted in increasing CO2 emissions, energy costs and necessitate increasingly complex cooling systems. This is a very real challenge. To address this, new mechanisms of software power control could be employed. In this...

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Year 2002

• Dynamic polarizability of the relativistic hydrogenlike atom: Application of the Sturmian expansion of the Dirac-Coulomb Green function

  Publication

  • R. Szmytkowski

  - PHYSICAL REVIEW A - Year 2002

  We utilize the Sturmian expansion of the Dirac-Coulomb Green function [R. Szmytkowski, J. Phys. B 30, 825 (1997)] to obtain components of the dynamic dipole polarizability tensor of the relativistic hydrogenlike atom in the ground state. It is found that the tensor may be expressed in terms of two independent quantities: a scalar polarizability and a vector polarizability, the latter being of the relativistic origin. In the static...

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Year 1995

• Dynamic mechanical thermal analysis of polyamide 6/thermoplastic polyurethane blends

  Publication

  • J. Haponiuk
  • J. Haponiuk

  - Journal of Thermal Analysis - Year 1995

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Year 2007

• Dynamic interaction of the cavitating propeller tip vortex with the rudder

  Publication

  • J. Szantyr

  - Polish Maritime Research - Year 2007

  Praca przedstawia model teoretyczny i obliczeniowy dynamicznego oddziaływania kawitującego wiru wierzchołkowego śruby okrętowej z płetwą sterową. W wyniku oddziaływania zmienia się geometria wiru, powodując generowanie wysokich pulsacji ciśnienia w otaczającej wodzie i na kadłubie okrętu. Wyniki obliczeń skonfrontowano z rezultatami pomiarów laboratoryjnych na modelach. Pokazano praktyczną przydatność modelu obliczeniowego do projektowania...

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• Dynamic Formation and Breaking of Disulfide Bonds in Molecular Dynamics Simulations with the UNRES Force Field

  Publication

  • M. Chinchio
  • C. Czaplewski
  • A. Liwo
  • S. Ołdziej
  • H. Scheraga
  • C. Czaplewski

  - Journal of Chemical Theory and Computation - Year 2007

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• Dynamic electrochemical impedance spectroscopy of the adsorption and relaxation of polyaniline chains during potentiodynamic redox transformations

  Publication

  • K. Darowicki
  • J. Kawula
  • K. Darowicki

  - RUSSIAN JOURNAL OF ELECTROCHEMISTRY - Year 2007

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• Dynamic electrochemical impedance spectroscopy of the adsorption and relaxation of polianiline chains during potentiodynamic redox transformations

  Publication

  • K. Darowicki
  • J. Kawula

  - RUSSIAN JOURNAL OF ELECTROCHEMISTRY - Year 2007

  Zaprezentowano nowe podejście do analizy widm impedancyjnych uzyskanych dla warstwy przewodzącej polianiliny (PAni). Właściwości powyższej warstwy są często modelowane przy użyciu elementu stałofazowego (CPE), który w sposób dokładniejszy odzwierciedla wyniki eksperymentalne niż klasyczny element pojemnościowy (kondensator). W pracy zaproponowano nowy elektryczny obwód zastępczy oparty na modelu adsorpcyjnym Frumkin-Melik-Gaikazyan,...

Year 2024

• Dynamic impedance measurements of the Direct Methanol Fuel Cell cathode at various operating temperatures

  Publication

  • Ł. Gaweł
  • D. Parasińska

  - INTERNATIONAL JOURNAL OF HYDROGEN ENERGY - Year 2024

  This article discusses the application of impedance analysis for diagnosing the cathode of a direct methanol fuel cell at various operating temperatures. The Dynamic Electrochemical Impedance Spectroscopy technique coupled with a linear current scan was applied for this purpose. This technique allowed the observation of changes in the cathode's properties in the fuel cell operating under real working conditions. An equivalent model...

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• Dynamic Execution of Engineering Processes in Cyber-Physical Systems of Systems Toolchains

  Publication

  • F. Montori
  • M. S. Tatara
  • P. Varga

  - IEEE Transactions on Automation Science and Engineering - Year 2024

  Engineering tools support the process of creating, operating, maintaining, and evolving systems throughout their lifecycle. Toolchains are sequences of tools that build on each others' output during this procedure. The complete chain of tools itself may not even be recognized by the humans who utilize them, people may just recognize the right tool being used at the right place in time. Modern engineering processes, however, do...

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Year 2018

• Dynamic F-free Coloring of Graphs

  Publication

  • P. Borowiecki
  • E. Sidorowicz

  - GRAPHS AND COMBINATORICS - Year 2018

  A problem of graph F-free coloring consists in partitioning the vertex set of a graph such that none of the resulting sets induces a graph containing a fixed graph F as an induced subgraph. In this paper we consider dynamic F-free coloring in which, similarly as in online coloring, the graph to be colored is not known in advance; it is gradually revealed to the coloring algorithm that has to color each vertex upon request as well...

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• Dynamic charging of electric buses

  Publication

  • M. Bartłomiejczyk

  - Year 2018

  Despite the continuous development of electrochemical battery technology and the multitude of electric buses on offer, it is still not possible to exploit electric buses in urban transport on an all-day basis without the necessity of charging them. It is therefore necessary to build point-to-point contact charging stations or induction charging stations at the terminals. This results in substantial financial outlays connected with...

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• Dynamic characteristics of the proton exchange membrane fuel cell module

  Publication

  • J. Cieśliński
  • T. Kaczmarczyk
  • B. Dawidowicz

  - Archives of Thermodynamics - Year 2018

  The paper describes a fuel cell based system and its performance. The system is based on two fuel cell units, DC/DC converter, DC/AC inverter, microprocessor control unit, load unit, bottled hydrogen supply system and a set of measurement instruments. In the study presented in the paper a dynamic response of the proton exchange membrane (PEM) fuel cell system to unit step change load as well as to periodical load changing cycles...

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• DYNAMIC ANALYSIS OF THE RAILWAY BRIDGES IN POLAND WITH REGARDS TO HIGH-SPEED TRAINS PASSAGE ADJUSTMENT

  Publication

  • K. Grębowski
  • M. Zielińska

  - Year 2018

  The dynamic analysis of the railway bridge in Tczew was carried out in the article as an example of such bridges adaptation suitability to handle high-speed trains. Calculations of railway bridges are greatly complicated and labor-consuming. The bridge model and a rolling stock passage simulation were developed in the SOFISTIK software. Three types of elements were used for the correct mapping of the structure in the calculation...

• Dynamic analysis of the railway bridge span under moving loads

  Publication

  • M. Szafrański

  - Roads and Bridges - Drogi i Mosty - Year 2018

  The first part of this paper provides a review of the state of knowledge of the dynamic behaviour of railway bridges under moving loads. Particular attention is paid to developments in modelling railway bridge loading and dynamic vehicle-span (structure) interaction. The most important aspects determining the advancements in this area of knowledge are identified. The contemporary techniques for defining bridge span finite element...

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• Dynamic analysis of temporary steel grandstand equipped with different types of bracing system

  Publication

  • N. Lasowicz
  • T. Falborski

  - MATEC Web of Conferences - Year 2018

  In the paper, behaviour of a temporary steel grandstand equipped with two different types of bracing system has been analysed through the numerical study. A typical solution concerning application of a diagonal tubular members has been compared with elements proposed by authors and called polymer dampers. A polymer element consists of two L-shape steel members bonded with polymer mass. The aim of the paper is to verify the effectiveness...

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• Dylematy rozwoju sektora energii-wspólne cele z Europą/polska droga

  Publication

  • W. Kamrat

  - Przegląd Gazowniczy - Year 2018

  Przedstawiono dylematy rozwoju krajowego sektora energii na tle uwarunkowań Unii Europejskiej. Określono możliwą polską drogę do osiagnięcia celów klimatyczno-energetycznych

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