Search results for: STRUCTURAL PHASE TRANSITION

• The influence of strain on the Verwey transition as a function of dopant concentration: towards a geobarometer for magnetite-bearing rocks

  Publication

  • I. Biało
  • A. Kozłowski
  • M. Wack
  • A. Włodek
  • Ł. Gondek
  • Z. Kąkol
  • R. Hochleitner
  • A. Żywczak
  • V. Chlan
  • S. Gilder
  • Ż. Antoni

  - GEOPHYSICAL JOURNAL INTERNATIONAL - Year 2019

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• Mixed electronic-ionic conductivity in transition metal oxide glasses con-taining alkaline ions

  Publication

  • L. Murawski
  • R. J. Barczyński

  - JOURNAL OF NON-CRYSTALLINE SOLIDS - Year 2002

  Opisano właściwości elektryczne szkieł z tlenkami metali przejściowych zawierających jony metali alkalicznych. Szczególną uwagę zwrócono na typowe zmiany przewodnictwa występujące przy domieszkowaniu tego typu szkieł jonami metali alkalicznych. Porównano przewodnictwo elektryczne szkieł fosforanowo-żelazowych zawierających jony sodu z przewodnictwem szkieł bizmutowo-miedziowych.

• First-order magnetic transition in single-crystalline CaFe2As2 detected by 75As nuclear magnetic resonance

  Publication

  • S. Baek
  • N. Curro
  • T. Klimczuk
  • E. Bauer
  • F. Ronning
  • J. D. Thompson

  - PHYSICAL REVIEW B - Year 2009

  Przedstawione są wyniki badań jądrowego rezonansu magnetycznego na 75As dla kryształów CaFe2As2. Wyniki wskazują, że strukturalne i magnetyczne przejścia w CaFe2As2 są silnie skorelowane i są pierwszego rodzaju.

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• Overview of the Synthesis and Catalytic Reactivity of Transition Metal Complexes Based on C═P Bond Systems

  Publication

  • A. Ziółkowska
  • D. Justyna
  • Ł. Ponikiewski

  - ORGANOMETALLICS - Year 2023

  This report provides an overview of the use of phosphaalkenes (C=P) in syntheses of various complexes. Going through successive complexes containing the d-block metals, we sought how this area of chemistry was formed over the years. Additionally, this work contains information on the possible coordination types and means of constructing the complexes. In addition, this review reveals the reactivities of phosphaalkene complexes...

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• The analysis of firms’ involvement in internationalisation and determinants of its intensity – an analysis for developing and post-transition economies

  Publication

  • J. Wolszczak-Derlacz

  - Economics and Business Review - Year 2018

  The study presents the empirical analysis of firms’ involvement in different forms of internationalisation: export, indirect export, import, indirect import and finally simultaneous exporting and importing. The analysis is based on firm-level data from the World Bank Enterprise Survey (March 2017 release). The empirical part is divided into two stages. Firstly account is taken of firms’ heterogeneity and then a Melitz type analysis...

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• An adaptive-noise Augmented Kalman Filter approach for input-state estimation in structural dynamics

  Publication

  • S. Vettori
  • E. Di Lorenzo
  • B. Peeters
  • M. Łuczak
  • E. Chatzi

  - MECHANICAL SYSTEMS AND SIGNAL PROCESSING - Year 2023

  The establishment of a Digital Twin of an operating engineered system can increase the potency of Structural Health Monitoring (SHM) tools, which are then bestowed with enhanced predictive capabilities. This is particularly relevant for wind energy infrastructures, where the definition of remaining useful life is a main driver for assessing the efficacy of these systems. In order to ensure a proper representation of the physical...

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• The use of a two-phase Monte Carlo material model to reflect the dispersion of asphalt concrete fracture parameters

  Publication

  • C. Szydłowski
  • Ł. Smakosz
  • M. Stienss
  • J. Górski

  - THEORETICAL AND APPLIED FRACTURE MECHANICS - Year 2022

  The work covers comprehensive laboratory tests of semi-circular bending (SCB) of asphalt concrete samples. The results of two test series, including four and 32 SCB specimens, indicate a substantial scatter of force–deflection (F-d) histories. The numerical analysis is aimed to reflect the maximum breaking load and fracture energy of the samples, pointing out their random character. The original simulation-based fictitious Monte...

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• Analysis of IMS/NGN call processing performance using phase-type distributions

  Publication

  • S. Kaczmarek
  • M. Sac

  - Year 2013

  This work is a continuation of our research on the traffic model dedicated for design and analysis of the Next Generation Network (NGN), which is standardized for distribution of current and future multimedia services based on the IP Multimedia Subsystem (IMS). Our analytical and simulation models allow evaluation of mean Call Set-up Delay E(CSD) as well as mean Call Disengagement Delay E(CDD) in a single domain of IMS/NGN. Ensuring...

• The dispersive micro-solid phase extraction method for MS-based lipidomics of human breast milk*

  Publication

  • I. Bakhytkyzy
  • W. Hewelt-Belka
  • A. Kot-Wasik

  - MICROCHEMICAL JOURNAL - Year 2020

  A simple and rapid microextraction method ensuring high lipidome coverage was developed for liquid chromatography mass spectrometry (LC-MS)-based lipidomics of human breast milk. The dispersive microsolid phase extraction (D-µ-SPE) technique, coupled with the design of experiment (DoE) method, enabled the study of the influence of several conditions (desorption solvent, stationary phase ratio, and sorption and desorption time)...

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• Transesterification of postfrying oils and utilization of the glycerol phase

  Publication

  • M. Perkowska
  • J. Łuczak
  • J. Sawicki
  • J. Hupka

  - Polish Journal of Chemical Technology - Year 2006

  Przedstawiono metodę wytwarzania biodiesla z oleju posmażalniczego oraz zaproponowano sposób zagospodarowania gliceryny, powstającej jako produkt uboczny tego procesu. Wykazano, że odpadowy olej jadalny może stanowić substrat reakcji transestryfikacji prowadzącej do otrzymania EMKT. Przeprowadzono proces transestryfikacji zasadowej I i II- stopniowej oraz estryfikację kwaśną. Właściwości fizykochemiczne otrzymanego paliwa porównano...

• Thermodynamic properties and phase stability of wadsleyite II

  Publication

  • K. Tokár
  • P. Jochym
  • P. Piekarz
  • J. Łażewski
  • M. Sternik
  • K. Parlinski

  - PHYSICS AND CHEMISTRY OF MINERALS - Year 2013

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• Phase investigations of copper based CuZn38Al2MnFe alloy

  Publication

  • M. Szkodo
  • M. Głowacka
  • M. Smajdor
  • H. Bugłacki

  - Solid State Phenomena - Year 2006

  W pracy przedstawiono analizę fazową mosiądzu CuZn38Al2MnFe. Wykazano, że obecność fazy Fe4Mn77Si19 powoduje kruchość stopu w teście zginania próbek.

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• Detoxification of the tricyclic antidepressant opipramol and its analog – IS-noh by UGT enzymes before and after activation by phase I enzymes in rat liver microsomes

  Publication

  • A. Mieszkowska
  • K. Hemine
  • A. Skwierawska
  • E. Augustin
  • Z. Mazerska

  - CHEMICAL PAPERS - Year 2021

  The present studies were carried out to evaluate the simultaneous one-pot metabolism of opipramol (IS-opi) and analog (IS-noh) by phase I and phase II enzymes present in rat liver microsomes (RLM) as an alternative to separate testing with recombinant enzymes. This approach allows for more time-saving and cost-effective screening of the metabolism of newly discovered drugs. We also considered that the lack of results for phase...

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• Optimum shapes and dimensions of rubber bumpers in order to reduce structural pounding during seismic excitations

  Publication

  • S. M. Khatami
  • H. Naderpour
  • A. Mortezaei
  • M. Maddah
  • N. Lasowicz
  • R. Jankowski

  - Structures - Year 2023

  Large displacement of structures observed during seismic excitations may lead to collisions between two adjacent, insufficiently-separated buildings and may result in major damages of both of them. In many building codes, appropriate equations or approximately recommended distances between structures in order to avoid pounding hazard have been introduced. Unfortunately, further, more detailed considerations show that safety situation...

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• Improving the procedure of probabilistic load testing design of typical bridges based on structural response similarities

  Publication

  • P. Owerko
  • K. Winkelmann

  - Archives of Civil Engineering - Year 2020

  This paper concerns load testing of typical bridge structures performed prior to operation. In-situ tests of a two-span post-tensioned bridge loaded with three vehicles of 38-ton mass each formed the input of this study. On the basis of the results of these measurements, an advanced FEM model of the structure was developed for which the sensitivity analysis was performed for chosen uncertainty sources. Three uncorrelated random...

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• A Wideband Corrugated Ridged Horn Antenna with Enhanced Gain and Stable Phase Center for X- and Ku-Band Applications

  Publication

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

  - IEEE Antennas and Wireless Propagation Letters - Year 2019

  In this letter, a structure and design procedure of a novel double-flared conical horn antenna with an improved gain and a stable phase center is presented. The antenna incorporates a hybrid ridged and corrugated structure. A double-ridged section is responsible for ensuring a wideband operation, whereas the corrugated section supports the hybrid mode. The antenna impedance bandwidth (VSWR < 2) is 6 GHz to 20 GHz. Excellent performance...

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• Exploring the potential of green chemistry in reversed-phase liquid chromatography: A review of sustainable solvents

  Publication

  • O. Kalisz
  • M. Tobiszewski
  • A. Nowaczyk
  • S. Bocian

  - TRAC-TRENDS IN ANALYTICAL CHEMISTRY - Year 2024

  This article delves into the growing field of green analytical chemistry, focusing on sustainable solvents for reversed-phase liquid chromatography (RP LC). RP LC is a widely applied technique in the pharmaceutical, food, and environmental analysis industries, consuming vast quantities of toxic and non-renewable solvents that pose serious environmental and health risks. In response to the urgent need for greener alternatives, this...

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• “Shadow” vs. “Phase 3D” method within endoscopic examinations of marine engines

  Publication

  • Z. Korczewski
  • J. Rudnicki

  - Combustion Engines - Year 2013

  A visual investigation of surfaces creating internal, working spaces of marine combustion engines by means of specialized view-finders so called endoscopes is at present almost a basic method of technical diag-nostics. The surface structure of constructional material is visible during investigations like through the magnifying glass (usually with a precisely determined magnification), which makes possible a detection, recognition...

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• Global Complex Roots and Poles Finding Algorithm Based on Phase Analysis for Propagation and Radiation Problems

  Publication

  • P. Kowalczyk

  - IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION - Year 2018

  A flexible and effective algorithm for complex roots and poles finding is presented. A wide class of analytic functions can be analyzed, and any arbitrarily shaped search region can be considered. The method is very simple and intuitive. It is based on sampling a function at the nodes of a regular mesh, and on the analysis of the function phase. As a result, a set of candidate regions is created and then the roots/poles are verified...

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• Computational and Structural Biotechnology Journal

  Journals

  ISSN: 2001-0370

• Journal of Structural Learning and Intelligent Systems

  Journals

  ISSN: 1027-1015

• Journal of Civil Structural Health Monitoring

  Journals

  ISSN: 2190-5452 , eISSN: 2190-5479

• Advances in Protein Chemistry and Structural Biology

  Journals

  ISSN: 1876-1623

• INTERNATIONAL JOURNAL MATERIALS &STRUCTURAL RELIABILITY

  Journals

  ISSN: 1685-6368

• Practice Periodical on Structural Design and Construction

  Journals

  ISSN: 1084-0680 , eISSN: 1943-5576

• International Journal of Advanced Structural Engineering

  Journals

  ISSN: 2008-3556

• International Journal of Materials and Structural Integrity

  Journals

  ISSN: 1745-0055

• SDHM Structural Durability and Health Monitoring

  Journals

  ISSN: 1930-2983

• Proceedings of International Structural Engineering and Construction

  Journals

  eISSN: 2644-108X

• Journal of Applied Structural Equation Modeling

  Journals

  eISSN: 2590-4221

• Structural Heart-The Journal of the Heart Team

  Journals

  ISSN: 2474-8706 , eISSN: 2474-8714

• STRUCTURAL DESIGN OF TALL AND SPECIAL BUILDINGS

  Journals

  ISSN: 1541-7794 , eISSN: 1541-7808

• Structural Equation Modeling: A Multidisciplinary Journal

  Journals

  ISSN: 1070-5511 , eISSN: 1532-8007

• STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL

  Journals

  ISSN: 1475-9217 , eISSN: 1741-3168

• Electronic transition dipole moment functions of the first singlet Sigma gerade plus state of the Lithium dimer

  Open Research Data

  open access

  • P. Jasik
  • J. Sienkiewicz

  - series: Electronic transition dipole moment functions of the Lithium dimer

  Electronic transition dipole moment functions (ETDMF) of the first singlet Sigma gerade plus (1sSg+) state have been calculated for the Lithium dimer. ETDMFs are needed in understanding processes like photodissociation, photoassociation, cooling, and trapping of molecules. The results of the five ETDMFs have been obtained by the nonrelativistic multireference...

• Electronic transition dipole moment functions of the first triplet Sigma ungerade plus state of the Lithium dimer

  Open Research Data

  open access

  • P. Jasik
  • J. Sienkiewicz

  - series: Electronic transition dipole moment functions of the Lithium dimer

  Electronic transition dipole moment functions (ETDMF) of the first triplet Sigma ungerade plus (1tSu+) state have been calculated for the Lithium dimer. ETDMFs are needed in understanding processes like photodissociation, photoassociation, cooling, and trapping of molecules. The results of the five ETDMFs have been obtained by the nonrelativistic multireference...

• Electronic transition dipole moment functions of the second triplet Sigma ungerade plus state of the Lithium dimer

  Open Research Data

  open access

  • P. Jasik
  • J. Sienkiewicz

  - series: Electronic transition dipole moment functions of the Lithium dimer

  Electronic transition dipole moment functions (ETDMF) of the second triplet Sigma ungerade plus (2tSu+) state have been calculated for the Lithium dimer. ETDMFs are needed in understanding processes like photodissociation, photoassociation, cooling, and trapping of molecules. The results of the five ETDMFs have been obtained by the nonrelativistic multireference...

• Electronic transition dipole moment functions of the third singlet Sigma gerade plus state of the Lithium dimer

  Open Research Data

  open access

  • P. Jasik
  • J. Sienkiewicz

  - series: Electronic transition dipole moment functions of the Lithium dimer

  Electronic transition dipole moment functions (ETDMF) of the third singlet Sigma gerade plus (3sSg+) state have been calculated for the Lithium dimer. ETDMFs are needed in understanding processes like photodissociation, photoassociation, cooling, and trapping of molecules. The results of the five ETDMFs have been obtained by the nonrelativistic multireference...

• Electronic transition dipole moment functions of the third triplet Sigma ungerade plus state of the Lithium dimer

  Open Research Data

  open access

  • P. Jasik
  • J. Sienkiewicz

  - series: Electronic transition dipole moment functions of the Lithium dimer

  Electronic transition dipole moment functions (ETDMF) of the third triplet Sigma ungerade plus (3tSu+) state have been calculated for the Lithium dimer. ETDMFs are needed in understanding processes like photodissociation, photoassociation, cooling, and trapping of molecules. The results of the five ETDMFs have been obtained by the nonrelativistic multireference...

• Electronic transition dipole moment functions of the fourth triplet Sigma ungerade plus state of the Lithium dimer

  Open Research Data

  open access

  • P. Jasik
  • J. Sienkiewicz

  - series: Electronic transition dipole moment functions of the Lithium dimer

  Electronic transition dipole moment functions (ETDMF) of the fourth triplet Sigma ungerade plus (4tSu+) state have been calculated for the Lithium dimer. ETDMFs are needed in understanding processes like photodissociation, photoassociation, cooling, and trapping of molecules. The results of the five ETDMFs have been obtained by the nonrelativistic multireference...

• Electronic transition dipole moment functions of the fourth singlet Sigma gerade plus state of the Lithium dimer

  Open Research Data

  open access

  • P. Jasik
  • J. Sienkiewicz

  - series: Electronic transition dipole moment functions of the Lithium dimer

  Electronic transition dipole moment functions (ETDMF) of the fourth singlet Sigma gerade plus (4sSg+) state have been calculated for the Lithium dimer. ETDMFs are needed in understanding processes like photodissociation, photoassociation, cooling, and trapping of molecules. The results of the five ETDMFs have been obtained by the nonrelativistic multireference...

• Electronic transition dipole moment functions of the second singlet Sigma gerade plus state of the Lithium dimer

  Open Research Data

  open access

  • P. Jasik
  • J. Sienkiewicz

  - series: Electronic transition dipole moment functions of the Lithium dimer

  Electronic transition dipole moment functions (ETDMF) of the second singlet Sigma gerade plus (2sSg+) state have been calculated for the Lithium dimer. ETDMFs are needed in understanding processes like photodissociation, photoassociation, cooling, and trapping of molecules. The results of the five ETDMFs have been obtained by the nonrelativistic multireference...

• Electronic transition dipole moment functions of the fifth singlet Sigma gerade plus state of the Lithium dimer

  Open Research Data

  open access

  • P. Jasik
  • J. Sienkiewicz

  - series: Electronic transition dipole moment functions of the Lithium dimer

  Electronic transition dipole moment functions (ETDMF) of the fifth singlet Sigma gerade plus (5sSg+) state have been calculated for the Lithium dimer. ETDMFs are needed in understanding processes like photodissociation, photoassociation, cooling, and trapping of molecules. The results of the five ETDMFs have been obtained by the nonrelativistic multireference...

• Electronic transition dipole moment functions of the fifth triplet Sigma ungerade plus state of the Lithium dimer

  Open Research Data

  open access

  • P. Jasik
  • J. Sienkiewicz

  - series: Electronic transition dipole moment functions of the Lithium dimer

  Electronic transition dipole moment functions (ETDMF) of the fifth triplet Sigma ungerade plus (5tSu+) state have been calculated for the Lithium dimer. ETDMFs are needed in understanding processes like photodissociation, photoassociation, cooling, and trapping of molecules. The results of the five ETDMFs have been obtained by the nonrelativistic multireference...

• Structural, mechanical and thermal behavior assessments of PCL/PHB blends reactively compatibilized with organic peroxides

  Publication

  • M. Przybysz-Romatowska
  • M. Marć
  • M. Klein
  • M. Saeb
  • K. Formela

  - POLYMER TESTING - Year 2018

  The efficiency of two commercially available organic peroxides, dicumyl peroxide (DCP) and di-(2-tert-butyl-peroxyisopropyl)-benzene (BIB), during reactive processing of poly (ε-caprolactone)/poly (3-hydroxybutyrate) (PCL/PHB) blends was investigated. The changes in chemical structure of PCL/PHB blends, as a function of organic peroxide type (DCP/BIB) and content (in range: 0–1.0 parts by weight - pbw), were characterized by Fourier...

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• Lagrangian model of an isolated dc-dc converter with a 3-phase medium frequency transformer accounting magnetic cross saturation

  Publication

  • P. Dworakowski
  • A. Wilk
  • M. Michna
  • A. Fouineau
  • M. Guillet

  - IEEE TRANSACTIONS ON POWER DELIVERY - Year 2021

  This article presents a nonlinear equivalent circuit model of an isolated dc-dc converter with a 3-phase medium frequency transformer. The model takes into account the magnetic cross saturation of the 3-phase core-type magnetic circuit. The model is suitable in detailed electromagnetic transient simulations of power systems involving isolated dc-dc converters. The model is developed using the Lagrange energy method. It involves...

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• Determination of Butyltin Species in Sea Water Samples Using Solid Phase Extraction Followed by Liquid Chromatography - Tandem Mass Spectrometry

  Publication

  • A. Wasik
  • K. Rogawski
  • A. Kot-Wasik

  - Year 2010

  Reverse phase liquid chromatography (RP-HPLC)-electrospray ionization-tandem mass spectrometry (ESI-MS-MS) was evaluated for the analysis of TBT using solid phase extraction as sample preparation method. TBT was extracted from acidified water samples (spiked with tripropyltin as internal standard) using reversed phase polymeric Strata-X cartridges. Analytes were eluted from cartridges using acetonitrile-water mixture and the volume...

• Simulation of the Remanence Influence on the Transient States of the Single-Phase Transformer Including Feedback Preisach Model

  Publication

  • A. Wilk
  • M. Michna
  • A. Cichowski

  - Year 2014

  This paper presents the results of the experimental and simulation investigation concerning the influence of remanence in the core of a single-phase transformer at the no-load transient state. Experimental studies consisted of the discharge of the capacitor through the primary winding at several different values of the residual magnetic flux. The paper presents a model of the transformer test system, taking into account the magnetic...

• Effect of irradiation intensity and initial pollutant concentration on gas phase photocatalytic activity of TiO2 nanotube arrays

  Publication

  • P. Mazierski
  • J. Nadolna
  • W. Lisowski
  • M. J. Winiarski
  • M. Gazda
  • T. Klimczuk
  • A. Zaleska-Medynska

  - CATALYSIS TODAY - Year 2017

  Well-organized TiO2 nanotube arrays were fabricated via one-step anodization process. The as-prepared TiO2 nanotubes were characterized by X-ray powder diffractometry (XRD), X-ray photoelectron spectroscopy (XPS), diffuse reflectance spectroscopy (DRS) and scanning electron microscopy (SEM). Photocatalytic activity of obtained photocatalyst was studied in reaction of toluene degradation in the gas phase using low powered and low...

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• Single-Phase 15-Level Switched-Capacitor Boost Multilevel Inverter Topology for Renewable Energy Applications

  Publication

  • A. Awadelseed
  • A. Lewicki
  • A. Iqbal

  - IEEE Access - Year 2024

  Galvanic isolation is a vital part of a grid-connected solar PV system. With the growth of multilevel inverters for grid-connected applications, the multilevel inverters having isolation are not sufficiently discussed in the literature. In this paper, a 15-level isolated multilevel inverter topology requiring only thirteen switches is proposed. The envisaged configuration includes two cells, designated as upper and lower cells....

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