Wyniki wyszukiwania dla: STRUCTURAL ANALYSIS OF COLUMNS

• Interface analysis of compatibilized polymer blends

  Publikacja

  • F. Mostafapoor
  • A. Khosravi
  • A. Fereidoon
  • R. Khalili
  • S. H. Jafari
  • V. Henri
  • K. Formela
  • M. Saeb

  - Rok 2020

  This chapter seeks to address the interface location in the compatibilized polymer blends and paves the way for quantitative analysis of interface in terms of interfacial tension and interfacial adhesion to provide support for understanding the relationship between morphology and ultimate properties in the compatibilized polymer blends through the lens of interface. Since understanding and analysis of interfacial phenomena in the...

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• Local structural and chemical ordering of nanosized Pt(3±δ)Co probed by multiple-scattering x-ray absorption spectroscopy

  Publikacja

  • G. Greco
  • A. Witkowska
  • E. Principi
  • M. Minicucci
  • A. Di Cicco

  - PHYSICAL REVIEW B - Rok 2011

  This work reports a detailed investigation of the local structure and chemical disorder of a Pt(3±δ)Co thin film and Pt(3±δ)Co nanoparticles. We have used a combination of techniques including x-ray absorption spectroscopy (XAS), x-ray diffraction (XRD), and high-resolution transmission electron microscopy (TEM). The important effect of chemical ordering on pair and three-atom configurations has been studied using computer simulations...

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• On analysis of nanocomposite conical structures

  Publikacja

  • S. Dastjerdi
  • Ö. Civalek
  • M. Malikan
  • B. Akgöz

  - INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE - Rok 2023

  This research examines the analysis of rotating truncated conical baskets reinforced by carbon nanotubes around the two independent axes. A time-dependent analysis is considered, and the nonlinear dynamic governing equations are extracted using the energy method. Carbon nanotubes (CNTs) reinforced the conical basket, and the structure's mechanical properties are determined based on the several distributions of carbon nanotubes....

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• Lead(II) coordination polymers with imidazole-4- and pyrazole-3-carboxylate isomeric linkers: Structural diversity and luminescence properties

  Publikacja

  • M. Kowalik
  • J. Masternak
  • K. Kazimierczuk
  • O. Khavryuchenko
  • B. Kupcewicz
  • B. Barszcz

  - JOURNAL OF SOLID STATE CHEMISTRY - Rok 2018

  Using 1H-imidazole-4-carboxylic acid (4imCOOH) and 1H-pyrazole-3-carboxylic acid (3pyrCOOH) coordination polymers [Pb(4imCOO)2(H2O)]n (1) and [Pb2(3pyrCOO)4]n (2) were constructed. Obtained polymers were characterized via FT-IR, X-ray, PL and TG methods. The coordination polyhedron around Pb(II) in 1 is described as distorted pentagonal pyramid with hemidirected coordination sphere (based on DFT calculations). Compound 2 consists...

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• The Effects of Silver Ion Implantation on Structural and Morphological Performance of Hydroxyapatite Coatings

  Publikacja

  • K. Suchanek
  • D. Sobol
  • M. Mitura-Nowak
  • M. Perzanowski
  • M. Marszałek

  - Acta Physica Polonica A - Rok 2020

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• Structural Model of the Bilitranslocase Transmembrane Domain Supported by NMR and FRET Data

  Publikacja

  • A. Choudhury
  • E. Sikorska
  • J. van
  • P. Bayer
  • Ł. Popenda
  • K. Szutkowski
  • S. Jurga
  • M. Bonomi
  • A. Sali
  • I. Zhukov... i 2 innych

  - PLOS ONE - Rok 2015

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• Structural, thermal and photocatalytic properties of composite materials SiO2/TiO2/C

  Publikacja

  • K. Kucio
  • B. Charmas
  • S. Pasieczna-Patkowska

  - ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY - Rok 2019

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• Elastic wave propagation in frame structure in the context of structural health monitoring

  Publikacja

  • J. Chróścielewski
  • M. Rucka
  • K. Wilde
  • W. Witkowski

  - Rok 2008

  Praca dotyczy propagacji fal sprężystych r konstrukcji ramowej w ośrodku typu belka Timoszenki. Do obliczeń numerycznych wykorzystano wielowęzłowe spektralne elementy skończone klasy C0. Omówiono algorytm całkowania po czasie i sformułowano wnioski dotyczące liczby węzłów na długość fali.

• Propagation of elastic waves in structural elements by spectral finite element methods

  Publikacja

  • A. Żak
  • W. Ostachowicz
  • M. Krawczuk

  - Rok 2009

  W pracy przedstawiono metodę elementów spektralnych w zastosowaniu do analizy propagacji fal sprężystych w elementach konstrukcyjnych.

• Hydrogen induced degradation of structural steel exposed to the technical liquid hydrocarbons

  Publikacja

  • B. Świeczko-Żurek
  • A. Zieliński
  • E. Łunarska

  - Physico-Chemical Mechanics of Materials - Rok 2006

  Badano degradacje stali 26H2MF w mieszaninach węglowodorów. Badania były prowadzone pod stałym obciążeniem i przy małej prędkości 10-6s-1

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• Structural waveguide co-doped with Yb3+/Tm3+for measurement of chlorophyll concentration

  Publikacja

  • K. Czajkowski
  • M. Kochanowicz
  • J. Zmojda
  • J. Szczykowska
  • D. Dorosz

  - Rok 2014

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• Structural and optical study on antimony-silicate glasses doped with thulium ions

  Publikacja

  • D. Dorosz
  • J. Zmojda
  • M. Kochanowicz
  • P. Miluski
  • P. Jelen
  • M. Sitarz
  • M. Kochanowicz

  - SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY - Rok 2015

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• Lamb Wave Based Structural Damage Detection Using Stationarity Tests

  Publikacja

  • P. Dao
  • W. Staszewski
  • P. B. Dao

  - Materials - Rok 2021

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• Synthesis and comprehensive structural and physicochemical characterization of dutasteride hydrochloride hydrate solvates

  Publikacja

  • M. Górecki
  • A. Dziedzic
  • R. Luboradzki
  • A. Ostaszewska
  • J. Frelek
  • W. Szczepek

  - STEROIDS - Rok 2017

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• Structural properties and adsorption of uranyl ions on the nanocomposite hydroxyapatite/white clay

  Publikacja

  • E. Broda
  • A. Gładysz-Płaska
  • E. Skwarek
  • V. Payentko

  - Applied Nanoscience - Rok 2022

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• Impact force spectrum for damage assessment of earthquake-induced structural pounding

  Publikacja

  • R. Jankowski

  - Rok 2005

  Celem artykułu jest zastosowanie spektrum siły zderzenia do szacowania zniszczeń powstałych na skutek zderzeń pomiędzy konstrukcjami budowlanymi, do których dochodzi podczas trzęsień ziemi. Wyniki analizy wskazują, iż spektrum takie może być przydatnym narzędziem przy projektowaniu konstrukcji podatnych na zderzenia. Przykłady spektrów odpowiedzi pokazują, iż zapewnienie odpowiedniej przerwy dylatacyjnej lub zgranie parametrów...

• Hydrogen induced degradation of structural steel exposed to the technical liquid hydrocarbons

  Publikacja

  • B. Świeczko-Żurek
  • A. Zieliński
  • E. Łunarska

  - Rok 2006

  Susceptibility of the differently heat treated 26H2MF steel to stress corrosion cracking has been evaluated in the constant strain rate tension tests done at the strain rate 10-6s-1 and in the constant load tests done at the 0,98 of fracture load. The boiler fuel and the aged mineral oil at 135C and 80C respectively, have been used as the aggressive environments.

• Structural and electronic properties of some intriguing (rare-earth)Ba2Cu3O7 compounds.

  Publikacja

  • M. Łuszczek

  - Rok 2004

  W rozdziale przedstawiono przegląd wyników eksperymentalnych i teoretycznych dotyczących wybranych związków o wzorze (lantanowiec)Ba2Cu3O7 wykazujących całkowicie odmienne właściwości w porównaniu z całą klasą nadprzewodzących związków tlenkowych o stechiometrii 1:2:3. Szczególny nacisk położono na analizę procesu wzrostu kryształów i powstawania defektów punktowych determinujących późniejsze własności fizyczne tych materiałów....

• Influence of deformation velocity on mechanical properties of high strength structural steels.

  Publikacja

  • H. Bugłacki
  • M. Smajdor

  - Rok 2004

  W referacie przedstawiono wyniki badań własności mechanicznych stali wysokiej wytrzymałości przeznaczonych na spawane konstrukcje okrętowe w zależności od prędkości odkształcenia. Badania były prowadzone w Akademii Marynarki Wojennej oraz w Politechnice Gdańskiej przy współudziale Uniwersytetu Technicznego w Rostocku podczas opracowywania charakterystyk tych stali dla potrzeb polskiego przemysłu okrętowego. Uwzględnienie obciążeń...

• Urban Development Strategies in Times of Structural Changes - Lessons from Poland

  Publikacja

  • P. Lorens

  - Rok 2011

  Praca obejmuje skrótowa prezentację współczesnych procesów rozwoju i transformacji polskich miast ze szczególnym uwzględnieniem zmian wynikających z transformacji ustrojowej.

• Structural Determinants of Substrate Specificity of SplF Protease from Staphylococcus aureus

  Publikacja

  • N. Stach
  • A. Karim
  • P. Golik
  • R. Kitel
  • K. Pustelny
  • N. Gruba
  • K. Groborz
  • U. Jankowska
  • S. Kedracka-Krok
  • B. Wladyka... i 3 innych

  - International Journal of Molecular Sciences - Rok 2021

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• Propagation of guided elastic waves in shell-type aircraft structural elements

  Publikacja

  • A. Żak
  • M. Krawczuk
  • W. Ostachowicz

  - Rok 2010

  W pracy przedstawiony powłokowy spektralny element skończony do analizy zjawiska propagacji fal sprężystych w elementach konstrukcyjnych typu powłokowego.

• Structural properties of hypothetical CeBa2Cu3O7 compound from LSDA+DMFT calculations

  Publikacja

  • M. Łuszczek

  - MATERIALS SCIENCE-POLAND - Rok 2016

  The hypothetical stoichiometric CeBa2Cu3O7 (Ce123) compound, which has not been synthesized as a single phase yet, was studied by the density functional theory (DFT). We utilized a method which merges the local spin density approximation (LSDA) with the dynamical mean-field theory (DMFT) to account for the electronic correlations. The LSDA+DMFT calculations were performed in the high-temperature range. The particular emphasis was...

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• Pincer Complexes Based on Phosphinoaminopyridines: Synthesis, Structural Characterization and Catalytic Applications

  Publikacja

  • J. Kisala
  • T. Ruman

  - CURRENT ORGANIC CHEMISTRY - Rok 2011

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• Structural Assessment of Reinforced Concrete Beams Incorporating Waste Plastic Straws

  Publikacja

  • J. M. Khatib
  • A. Jahami
  • A. Elkordi
  • H. Abdelgader
  • M. Sanebi

  - Environments - Rok 2020

  The behavior of reinforced concrete beams containing fibers made of waste plastic straws (WPSs) under the three point bending test is examined. The effect of WPS fiber addition on the compressive and split tensile strength is reported. Four concrete mixes were prepared. The control mix PS-0 had a proportion of 1 cement: 1 sand: 2 coarse aggregate and a water cement ratio of 0.4. In the other three mixes PS-0.5, PS-1.5 and PS-3,...

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• Structural properties of mixed conductor Ba1−xGd1−yLax+yCo2O6−δ

  Publikacja

  • R. Strandbakke
  • D. S. Wragg
  • M. H. Sørby
  • M. N. Guzik
  • A. E. Gunnæs
  • I. Szpunar
  • S. L. Wachowski
  • M. Balaguer
  • P. A. Carvalho
  • A. D. Mielewczyk-Gryń... i 2 innych

  - DALTON TRANSACTIONS - Rok 2022

  Ba1−xGd1−yLax+yCo2O6−δ (BGLC) compositions with large compositional ranges of Ba, Gd, and La have been characterised with respect to phase compositions, structure, and thermal and chemical expansion. The results show a system with large compositional flexibility, enabling tuning of functional properties and thermal and chemical expansion. We show anisotropic chemical expansion and detailed refinements of emerging phases as La is...

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• Evaluation of strength, deformability and failure mode of composite structural insulated panels

  Publikacja

  • Ł. Smakosz
  • J. Tejchman

  - MATERIALS & DESIGN - Rok 2014

  W pracy przedstawiono wyniki badań wytrzymałościowych na zginanie i ściskanie paneli kompozytowych CSIP. Panele składają się z 2 sztywnych okładzin cementowo-magnezjowych zbrojonych włóknem szklanym oraz miękkiego rdzenia ze styropianu. Panele charakteryzują się m.in. niskim ciężarem, szybkim i łatwym montażem oraz wysoką wytrzymałością, ognioodpornością, odpornością na korozję i izolacyjnością cieplną.

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• On FEM analysis of Cosserat-type stiffened shells. Static and stability linear analysis

  Publikacja

  • S. Burzyński

  - CONTINUUM MECHANICS AND THERMODYNAMICS - Rok 2021

  The present research investigates the theory and numerical analysis of shells stiffened with beams in the framework based on the geometrically exact theories of shells and beams. Shell’s and beam’s kinematics are described by the Cosserat surface and the Cosserat rod respectively, which are consistent including deformation and strain measures. A FEM approximation of the virtual work principle leads to the conforming shell and beam...

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• Microbiological analysis of sea water and bottom sediments in Kosakowo – Gdańsk profile

  Dane Badawcze

  open access

  • M. Bartoszewicz

  This dataset contains the results of microbiological analysis of sea water and bottom sediments in Kosakowo – Gdańsk profile in 2013 - 2014 . The tested material consisted of water samples (surface water and bottom water) and bottom sediment samples. Water and sediment samples were analysed for the following: number of Enterobacteriaceae genus bacteria,...

• Analysis of aircraft magnetic interference

  Publikacja

  • M. Wołoszyn

  - Rok 2011

  The magnetometric method is used among other things on mobile platforms (planes, helicopters) in military systems and in geological research. Optically-pumped and SQUID magnetometers are used in magnetic systems on airplanes. To be able to attain the sensitivity of modern magnetometers in flight, it is important that maneuver-related magnetic interference effects be minimized. The mathematical model of an aircraft as a source of...

• Analysis of aircraft magnetic interference

  Publikacja

  • M. Wołoszyn

  - INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS - Rok 2012

  The magnetometric method is used among other things on mobile platforms (planes, helicopters) in military systems and in geological research. Optically-pumped and SQUID magnetometers are used in magnetic systems on airplanes. To be able to attain the sensitivity of modern magnetometers in flight, it is important that maneuver-related magnetic interference effects be minimized. The mathematical model of an aircraft as a source of...

• Particulate Material Analysis in Air

  Publikacja

  • W. Wardencki
  • M. Bielawska

  - Rok 2016

  The chapter presents the methods and techniques used to asses the PM10 in air and different instruments typically used in analysis of PM, including sampling of particle by using filters and other systems. Besides the methods recommended by different national standards the other methods, especially electronic microscopy are also described.

• Structural and dynamic changes adopted by EmrE, multidrug transporter protein—Studies by molecular dynamics simulation

  Publikacja

  • M. Padariya
  • U. Kalathiya
  • M. Bagiński

  - BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES - Rok 2015

  EmrE protein transports positively charged aromatic drugs (xenobiotics) in exchange for two protons and thus provides bacteria resistance to variety of drugs. In order to understand how this protein may recognize ligands, the monomer and asymmetric apo-form of the EmrE dimer embedded in a heterogeneous phospholipid (POPE + POPG) membrane were studied by molecular dynamics simulations. Dimer is regarded as a functional form of the...

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• Structural and physico-mechanical properties of natural rubber/GTR composites devulcanized by microwaves: Influence of GTR source and irradiation time

  Publikacja

  • X. Colom
  • M. Marín-Genescà
  • R. Mujal
  • K. Formela
  • J. Cañavate

  - JOURNAL OF COMPOSITE MATERIALS - Rok 2018

  Ground tire rubber from car and truck was modified using microwave irradiation at variable time. The irradiated ground tire rubber was used as filler in composites based on natural rubber. The composites, with high content of ground tire rubber, were prepared using an internal batch mixer and subsequently cross-linked at 160℃. The influence of the ground tire rubber source (car/truck) and irradiation time on structure, physico-mechanical...

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• Analysis of leakage flux in deenergized transformer

  Publikacja

  • J. Horiszny

  - Rok 2017

  The article presents the numerical analysis of the magnetic field that occurs around the transformer after it has been switched off. The purpose of this analysis was to determine if it is possible to define the residual fluxes in the legs of transformer based on the measurements of this field. These studies have allowed us to determine the quantity and location of the sensors. The influence of the Earth's magnetic field has also...

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• Harmonic Analysis

  Dane Badawcze

  open access

  • K. Dziedziul

  We construct a decomposition of the identity operator on a Riemannian manifold M as   a sum of smooth orthogonal projections subordinate to an open cover of M. This extends a decomposition on the real line by smooth orthogonal projection due to Coifman and Meyer (C. R. Acad. Sci. Paris, Sér. I Math., 312(3), 259–261 1991) and Auscher, Weiss, Wickerhauser...

• Green adsorbents and solvents in food analysis

  Publikacja

  • H. Haq
  • M. S. Khan
  • M. J. Khan
  • M. B. Arain

  - Rok 2024

  Green analytical chemistry aims to minimize the negative impact of analytical procedures on the environment and human health. This can be achieved through the use of non-toxic and environmentally friendly reagents. Classical green solvents include water, ethanol, acetone, and supercritical fluids. Water has been used for the extraction of water-soluble compounds (sugars, amino acids). Ethanol and acetone have been used for the...

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• Molecular and structural basis of inner core lipopolysaccharide alterations in Escherichia coli: incorporation of glucuronic acid and phosphoethanolamine in the heptose region.

  Publikacja

  • G. Klein-Raina
  • S. Muller-Loennies
  • B. Lindner
  • N. Kobylak
  • H. Brade
  • S. Raina

  - JOURNAL OF BIOLOGICAL CHEMISTRY - Rok 2013

  It is well established that lipopolysaccharide (LPS) often carries nonstoichiometric substitutions in lipid A and in the inner core. In this work, the molecular basis of inner core alterations and their physiological significance are addressed. A new inner core modification of LPS is described, which arises due to the addition of glucuronic acid on the third heptose with a concomitant loss of phosphate on the second heptose. This...

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• The Mott-Schottky characteristics of microwave pulsed-plasma polymerized allylamine by DEIS analysis

  Dane Badawcze

  open access

  • J. Ryl

  The dataset contains the results obtained for the Mott-Schottky analysis of the microwave pulsed-plasma polymerized allylamine using the multifrequency perturbation signal with Dynamic Electrochemical Impedance Spectroscopy (DEIS) technique. The results were obtained using the perturbation composed of the elementary signals with a frequency range between...

• Numerical analysis of a temporary steel grandstand

  Publikacja

  • N. Lasowicz
  • R. Jankowski

  - Rok 2014

  The purpose of this paper is to present the results of the numerical analysis focused on the response of the temporary steel scaffolding grandstand subjected to human-induced vibrations due to jumping. Shell as well as beam elements have been used in the numerical model. Its first stage has involved conducting modal analysis in order to determine the modes of free vibrations and the corresponding natural frequencies for the empty...

• Fractal analysis of the bending-torsion fatigue fracture of aluminium alloy

  Publikacja

  • W. Macek

  - Engineering Failure Analysis - Rok 2019

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• Krystian Zawadzki dr hab. inż.

  Osoby

  Katedra Finansów

  Krystian Zawadzki jest pracownikiem Katedry Finansów na Wydziale Zarządzania i Ekonomii Politechniki Gdańskiej; członkiem Polskiej Akademii Olimpijskiej przy PKOl; koordynatorem Szkoły Giełdowej (GPW) w Gdańsku; kierownikiem studiów podyplomowych "Inwestycje kapitałowe i zarządzanie finansami osobistymi"; członkiem komisji rewizyjnej klubu sportowego "Sportowa Politechnika". Założyciel kanału o tematyce naukowo-finansowo-sportowej...

• Multimodal Genetic Algorithm with Phase Analysis to Solve Complex Equations of Electromagnetic Analysis

  Publikacja

  • D. Trofimowicz
  • T. Stefański

  - Rok 2020

  In this contribution, a new genetic-algorithm-based method of finding roots and poles of a complex function of a complex variable is presented. The algorithm employs the phase analysis of the function to explore the complex plane with the use of the genetic algorithm. Hence, the candidate regions of root and pole occurrences are selected and verified with the use of discrete Cauchy's argument principle. The algorithm is evaluated...

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• The Analysis of Vodka: A Review Paper

  Publikacja

  • P. Wiśniewska
  • M. Śliwińska
  • T. Dymerski
  • W. Wardencki
  • J. Namieśnik

  - Food Analytical Methods - Rok 2015

  Vodka is the most popular alcoholic beverage in Poland, Russia and other Eastern European countries, made from ethyl alcohol of agricultural origin that has been produced via fermentation of potatoes, grains or other agricultural products. Despite distillation and multiple filtering, it is not possible to produce 100 % ethanol. The solution with a minimum ethanol content of 96 %, which is used to produce vodkas, also contains trace amounts...

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• Molecular dynamics simulations reveal the balance of forces governing the formation of a guanine tetrad—a common structural unit of G-quadruplex DNA

  Publikacja

  • M. Kogut
  • C. Kleist
  • J. Czub

  - NUCLEIC ACIDS RESEARCH - Rok 2016

  G-quadruplexes (G4) are nucleic acid conformations of guanine-rich sequences, in which guanines are arranged in the square-planar G-tetrads, stacked on one another. G4 motifs form in vivo and are implicated in regulation of such processes as gene expression and chromosome maintenance. The structure and stability of various G4 topologies were determined experimentally; however, the driving forces for their formation are not fully...

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• Improving automatic surveillance by sound analysis

  Publikacja

  • K. Łopatka
  • J. Kotus
  • A. Czyżewski

  - Rok 2010

  An automatic surveillance system, based on event detection in the video image can be improved by implementing algorithms for audio analysis. Dangerous or illegal actions are often connected with distinctive sound events like screams or sudden bursts of energy. A method for detection and classification of alarming sound events is presented. Detection is based on the observation of sudden changes in sound level in distinctive sub-bands...

• Case Study NEB Atlas / part II - Autodesk Forma analysis / BedZED, London

  Dane Badawcze

  embargo

  • J. Martyniuk-Pęczek
  • M. Kamal
  • I. Sujatmiko

  The data presents the results of work on the analysis of contemporary neighbourhoods. The aim of this part of the research was to analysis housing estates already existed in various cities in Europe. The analyses ware done in real time with AI and powered for key factors such as sun hours, daylight potential, noise, wind, and microclimate. These data...

• Numerical analysis of elastic wave propagation in unbounded structures

  Publikacja

  • A. Żak
  • M. Krawczuk
  • Ł. Skarbek
  • M. Palacz

  - FINITE ELEMENTS IN ANALYSIS AND DESIGN - Rok 2014

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• Water uptake analysis of acceptor-doped lanthanum orthoniobates

  Publikacja

  • A. D. Mielewczyk-Gryń
  • S. L. Wachowski
  • M. Prześniak-Welenc
  • K. Dzierzgowski
  • A. Regoutz
  • D. J. Payne
  • M. Gazda

  - JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY - Rok 2019

  In this work, lanthanum orthoniobates doped with either antimony, calcium, or both have been synthesized and studied. The water uptake of the investigated materials has been analyzed by means of thermogravimetric studies. The results show the difference between the thermodynamics of hydration between the lanthanum orthoniobate system and other proton conducting ceramics. The relation between the water uptake and effective acceptor...

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• Matrix solid-phase dispersion with sand in chromatographic analysis of essential oils in herbs

  Publikacja

  • A. Dawidowicz
  • D. WIANOWSKA
  • E. Rado

  - PHYTOCHEMICAL ANALYSIS - Rok 2011

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