Wyniki wyszukiwania dla: structural%20changes

• STRUCTURAL CHEMISTRY

  Czasopisma

  ISSN: 1040-0400 , eISSN: 1572-9001

• ENGINEERING STRUCTURES

  Czasopisma

  ISSN: 0141-0296 , eISSN: 1873-7323

• COMPOSITE STRUCTURES

  Czasopisma

  ISSN: 0263-8223 , eISSN: 1879-1085

• Structural Dynamics and Stability of Composite Structures

  Publikacja

  • S. Han
  • I. Kreja
  • G. Rus
  • G. Lomboy

  - Advances in Materials Science and Engineering - Rok 2016

  This an editorial for a special Issue devoted to the application of dynamic and stability analysis of composite structures. In structural applications, past few decades have seen outstanding advances in the use of composite materials including Functionally Graded Materials (FGM). Most structures, whether they are used in civil, marine, or aerospace engineering, are subjected to dynamic loads during their operation.Therefore, dynamic...

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• Structural Dynamics and Stability of Composite Structures

  Publikacja

  • S. Han
  • I. Kreja
  • G. Rus
  • G. Lomboy

  - Advances in Materials Science and Engineering - Rok 2016

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• JOURNAL OF MOLECULAR STRUCTURE

  Czasopisma

  ISSN: 0022-2860 , eISSN: 1872-8014

• THIN-WALLED STRUCTURES

  Czasopisma

  ISSN: 0263-8231 , eISSN: 1879-3223

• GROWTH AND STRUCTURAL CHANGES IN TRANSITION COUNTRIES: THE CHICKEN OR THE EGG?

  Publikacja

  • M. Olczyk
  • A. Kordalska

  - Journal of Business Economics and Management - Rok 2018

  The objective of this study is to test empirically the relationship between structural changes (changes in gross value added and employment) and economic growth. We used a panel Granger-causality analysis based on annual data for eight transition countries, covering the period 1995–2011. The main finding is that the causality relations analysed are heterogeneous processes and are identified more often...

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• Structural changes in the polish economy- the analysis of input-output

  Publikacja

  • M. Olczyk

  - Rok 2011

  this paper analyses the structure of polish economy using three input-output tables for years 1995, 2000 and 2004. applying the traditional methods proposed by rasmussen the sector's backward and forward linkages are identified. industries with large backward and forward linkages are named "key sectors" and play an important role in the development strategy of a country, so the outcome of the paper may be used for the development...

• Assessment of structural changes in IN-519 cast steel reformer tubes.

  Publikacja

  • J. Łabanowski

  - Rok 2005

  Przedstawiono zmiany struktury rur katalitycznych ze staliwa austenitycznego IN-519 po długotrwałej eksploatacji w reformerze metanu.

• Structures

  Czasopisma

  ISSN: 2352-0124

• 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.

• The impact of technological and structural changes in the national economy on the labour-capital relations

  Publikacja

  • M. Gawrycka
  • A. Sobiechowska-Ziegert
  • A. Szymczak

  - Contemporary Economics - Rok 2012

  The aim of the research presented in this paper is to present the relations between labour and capital in the national economy, resulting from technological and structural changes taking place in the years 1991 to 2008. The structure of the paper is as follows. It first presents the functional determinants for the Polish economy in 1991-2008 affecting the phenomenon subject to study. Then it presents the preliminary analysis of...

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• SI Gecom Exchanges

  Czasopisma

  ISSN: 1551-9031

• COMPUTERS & STRUCTURES

  Czasopisma

  ISSN: 0045-7949 , eISSN: 1879-2243

• Uncertainty Quantification in Experimental Structural Dynamics Identification of Composite Material Structures

  Publikacja

  • M. Łuczak
  • B. Peeters
  • M. Kahsin
  • S. Manzato
  • K. Branner

  - Rok 2014

  Composite materials are widely used in manufacture of aerospace and wind energy structural components. These load carrying structures are subjected to dynamic time-varying loading conditions. Robust structural dynamics identification procedure impose tight constraints on the quality of modal models estimates obtained from vibration experiments. Modal testing results are influenced by numerous factors introducing uncertainty to...

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• A Generalized Framework Towards Structural Mechanics of Three-layered Composite Structures

  Publikacja

  • M. Aßmus
  • K. Naumenko
  • A. Öchsner
  • V. Eremeev
  • H. Altenbach

  - Technische Mechanik - Rok 2019

  Three-layered composite structures find a broad application. Increasingly, composites are being used whose layer thicknesses and material properties diverge strongly. In the perspective of structural mechanics, classical approaches to analysis fail at such extraordinary composites. Therefore, emphasis of the present approach is on arbitrary transverse shear rigidities and structural thicknesses of the individual layers. Therewith...

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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.

• Reshaping of Coastlines as the Beginning of Urban Structures Changes in North Poland

  Publikacja

  • I. Burda
  • L. Nyka
  • A. Borodziuk

  - IOP Conference Series: Materials Science and Engineering - Rok 2017

  This article discusses the problem of strategies concerning the processes of re-shaping the Baltic Sea southern coastline applied recently in North Poland. The undertaken research is an attempt to identify the relationship between the modifications of coastline forms and the positive changes of urban structures. It can be seen that these modifications are needed because of the problems of existing shoreline erosion. It can be also...

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• Structural Dynamics

  Czasopisma

  ISSN: 2329-7778

• Structural Engineer

  Czasopisma

  ISSN: 1466-5123

• STRUCTURAL SAFETY

  Czasopisma

  ISSN: 0167-4730 , eISSN: 1879-3355

• Influence of separation gap on the structural response of colliding structures under earthquake excitation

  Publikacja

  • B. Sołtysik
  • R. Jankowski

  - Rok 2015

  The high level of urbanization in the XXIst century forces the designers to design closely-separated structures and to take into account many factors influencing their response during seismic excitation, which are the most unpredictable loads which can affect civil engineering structures. Interactions between insufficiently adjacent buildings, known as the earthquake-induced structural pounding, may cause serious damage to the structures,...

• Temperature and potential-dependent structural changes in Pt cathode electrocatalyst viewed by in situ XAFS

  Publikacja

  • A. Witkowska
  • E. Principi
  • A. Di Cicco
  • S. Dsoke
  • R. Marassi
  • L. Olivi
  • M. Centazzo
  • V. Rossi Albertini

  - JOURNAL OF NON-CRYSTALLINE SOLIDS - Rok 2008

  W pracy przedstawiono wyniki badań widm absorpcji promieniowania rentgenowskiego nano-platyny używanej jako katalizator w katodach polimerowych ogniw paliwowych (PEM FC). Badania XAFS realizowane były w warunkach pracy ogniwa paliwowego. Wysokiej jakości widma, uzyskane za pomocą specjalnie przygotowanej do pomiarów XAFS in situ komórki FC, umożliwiły przeprowadzenie zaawansowanej analizy obrazującej zmiany w lokalnej strukturze...

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• Force-induced structural changes in non-sulfated carrageenan based oligosaccharides – a theoretical study

  Publikacja

  • A. Brzyska
  • W. Płaziński
  • K. Woliński
  • A. Brzyska

  - SOFT MATTER - Rok 2018

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• Enforced conformational changes in the structural units of glycosaminoglycan (non-sulfated heparin-based oligosaccharides)

  Publikacja

  • A. Brzyska
  • K. Woliński
  • A. Brzyska

  - RSC Advances - Rok 2014

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• Cadmium inhibitory action leads to changes in structure of ferredoxin:NADP+ oxidoreductase

  Publikacja

  • J. Grzyb
  • M. Gagoś
  • B. Myśliwa-Kurdziel
  • M. Bojko
  • W. Gruszecki
  • A. Waloszek
  • K. Strzałka

  - JOURNAL OF BIOLOGICAL PHYSICS - Rok 2012

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• Temperature-induced changes of HtrA2(Omi) protease activity and structure

  Publikacja

  • D. Zurawa-Janicka
  • M. Jarzab
  • A. Polit
  • J. Skorko-Glonek
  • A. Lesner
  • A. Gitlin
  • A. Gieldon
  • J. Ciarkowski
  • P. Glaza
  • A. Lubomska
  • B. Lipinska

  - CELL STRESS & CHAPERONES - Rok 2013

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• Changes in the structure of Armenia’s labour resources between 1993 and 2020

  Publikacja

  • K. Gomółka
  • K. Flisikowski

  - Economic Annals-XXI - Rok 2020

  The article characterises the structure of Armenia’s labour resources in the period between1993 and 2020. It aims to assess the changes on the Armenian labour market by means of a deductive analysis of historical data and observation of changes in the structure of resources based on generally available macroeconomic data. The authors evaluate these processes against the background of demographic and economic changes, by presenting...

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

  Publikacja

  • B. Sołtysik
  • T. Falborski
  • R. Jankowski

  - Key Engineering Materials - Rok 2016

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

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• Crystal structures of aminotransferases Aro8 and Aro9 from Candida albicans and structural insights into their properties

  Publikacja

  • A. Kiliszek
  • W. Rypniewski
  • K. Rząd
  • S. Milewski
  • I. Gabriel

  - JOURNAL OF STRUCTURAL BIOLOGY - Rok 2019

  Aminotransferases catalyze reversibly the transamination reaction by a ping-pong bi-bi mechanism with pyridoxal 5′-phosphate (PLP) as a cofactor. Various aminotransferases acting on a range of substrates have been reported. Aromatic transaminases are able to catalyze the transamination reaction with both aromatic and acidic substrates. Two aminotransferases from C. albicans, Aro8p and Aro9p, have been identified recently, exhibiting...

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• Structural changes of water caused by non-electrolytes: Volumetric and compressibility approach for urea-like analogues

  Publikacja

  • J. Wawer
  • J. Krakowiak

  - JOURNAL OF MOLECULAR LIQUIDS - Rok 2018

  Hydration of thiourea (TU), hydroxyurea (HU, hydroxycarbamide), acetone (AC, 2-propanone) and dimethyl sulfoxide (DMSO) has been investigated with the help of the volumetric and compression measurement. The apparent molar volumes and the apparent molar isentropic (adiabatic) compression have been calculated from the density and speed of sound data at temperatures ranging from 288.15 to 308.15 K at atmospheric pressure (0.1 MPa)....

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• 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 Microhardness Changes After Turning of the AISI 1045 Steel for Minimum Quantity Cooling Lubrication

  Publikacja

  • R. Maruda
  • G. Krolczyk
  • M. Michalski
  • P. Nieslony
  • S. Wojciechowski

  - JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE - Rok 2017

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• Probing Local Structural Changes by Sharp Luminescent Infrared Nanophosphor for Application in Light-Emitting Diodes

  Publikacja

  • D. Kreft
  • S. Mahlik
  • N. Majewska
  • M. Fang
  • H. Jia-yu
  • R. Chung
  • S. Hwo-shuenn
  • L. Jyh-fu

  - CHEMISTRY OF MATERIALS - Rok 2022

  Cr3+-doped infrared phosphors are promising candidates for next-generation phosphor-converted infrared light-emitting diodes (LEDs) because they can, in principle, tune and convert the luminescence spectra from an LED chip. However, most studies focus on broad-band Cr3+-doped phosphors, and the control mechanism of Cr3+-doped phosphors with sharp line emissions remains ambiguous. Here, we report LiGa5(1–x)Al5xO8:Cr3+ phosphors...

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• SMART MATERIALS & STRUCTURES

  Czasopisma

  ISSN: 0964-1726 , eISSN: 1361-665X

• Structural Change and Economic Dynamics

  Czasopisma

  ISSN: 0954-349X

• The Revitalization Processes of the Port Structures in Gdynia and Gdansk on the Background of Contemporary Port Changes

  Publikacja

  • T. Szymański

  - Rok 2016

  Transformations of the port facilities against the modernization of the port structures are present in many city-port centers since more than 50 years. The modernization taking place in the ports located in Gdynia-Gdansk mainly concerns communication availability and adapted to the multimodal technology of transport and transshipment. Developing specialized tech-terminals serving a specific type of load, causes development of the...

• Efficiency of optical-electronic systems: methods application for the analysis of structural changes in the process of eye grounds diagnosis

  Publikacja

  • Y. Saldan
  • S. Pavlov
  • D. Vovkotrub
  • Y. Saldan
  • V. Vassilenko
  • N. Mazur
  • D. Nikolaichuk
  • W. Wójcik
  • R. Romaniuk
  • B. Suleimenov... i 2 innych

  - Rok 2017

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• Structural changes of bacterial cellulose due to incubation in conditions simulating human plasma in the presence of selected pathogens

  Publikacja

  • P. Dederko-Kantowicz
  • A. Sommer
  • H. Staroszczyk

  - CARBOHYDRATE POLYMERS - Rok 2021

  Bacterial nanocellulose (BNC) is a natural biomaterial with a wide range of medical applications. However, it cannot be used as a biological implant of the circulatory system without checking whether it is biodegradable under human plasma conditions. This work aimed to investigate the BNC biodegradation by selected pathogens under conditions simulating human plasma. The BNC was incubated in simulated biological fluids with or...

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• Synthesis, Structure, and Spectroscopic Properties of Calcium Thiophenecarboxylate Polymers. Structural Comparison with Analogous Lead Complexes

  Publikacja

  • J. Masternak
  • K. Kazimierczuk
  • B. Kupcewicz
  • J. Brzeski
  • M. Kowalik

  - EUROPEAN JOURNAL OF INORGANIC CHEMISTRY - Rok 2022

  Three novel calcium coordination polymers [Ca(2tpCOO)2(2mpa)(H2O)]n (1), [Ca(3tpCOO)2(2mpa)(H2O)]n (2), and {[Ca(3tpacCOO)2(H2O)2]⋅⋅⋅H2O}n (3) (2tpCOO− or 3tpCOO− – thiophene-2- or thiophene-3-carboxylate, 3tpacCOO− – thiophene-3-acetate, 2mpa – 2-methylpropanal), were synthesised using a self-assembly method. The obtained polymers were characterised using SC-XRD, FTIR, UV-Vis DRS, thermogravimetric and luminescence analyses. The...

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• Structural Integrity

  Czasopisma

  ISSN: 2522-560X , eISSN: 2522-5618

• Desmuramylopeptydy - struktura i aktywność biologiczna = Desmuramylpeptide - structure and biological activity

  Publikacja

  • K. Dzierzbicka
  • K. Sągol
  • A. Wardowska
  • P. Trzonkowski

  - Wiadomości Chemiczne - Rok 2009

  Wśród fragmentów bakteryjnych ścian komórkowych, ktore wzbudzają duże zainteresowanie, są tak zwane desmuramylopeptydy. Są to cząsteczki nie zawierające reszty kwasu muraminowego. W niniejszym artykule opisano desmuramylopeptydy, które z uwagi na swoje właściwości farmakologiczne, takie jak stymulowanie niespecyficznej odporności przeciwbakteryjnej, aktywność przeciwwirusową i przeciwnowotworową oraz synergistyczne oddziaływanie...

• Syntheses, spectroscopic and structural properties of phenoxysilyl compounds: X-ray structures, FT-IR and DFT calculations

  Publikacja

  • A. Jabłońska
  • Ł. Ponikiewski
  • K. Ejsmont
  • A. Herman
  • A. Dołęga

  - JOURNAL OF MOLECULAR STRUCTURE - Rok 2013

  The reaction of silicon disulfide with alkylphenols leads to tetraphenoxysilane, cyclodisilthiane and silanethiol. The products of the reaction of silicon disulfide with phenols are characterized by FT-IR, NMR, X-ray diffraction and DFT calculations. The intramolecular interactions in the compounds are mainly XH---π (X = C, S) whereas the intermolecular interactions are either very weak CH---π/CH---O contacts found in aryloxysilane...

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• Structural Changes and Their Implications in Foamed Flexible Polyurethane Composites Filled with Rapeseed Oil-Treated Ground Tire Rubber

  Publikacja

  • P. Kosmela
  • A. Olszewski
  • Ł. Zedler
  • P. Wiśniewska
  • K. Formela
  • A. Hejna

  - Journal of Composites Science - Rok 2021

  The utilization of post-consumer car tires is an essential issue from an ecological andeconomic point of view. One of the simplest and the least harmful methods is their material recyclingresulting in ground tire rubber (GTR), which can be further applied as fillers for polymer-basedcomposites. Nevertheless, insufficient interfacial interactions implicate the necessity of GTR modi-fication before introduction into polymer matrices....

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• Structural changes of a simple peptide—Trpzip-1—in aqueous solutions and the corresponding hydration phenomena under the influence of temperature

  Publikacja

  • P. Bruździak
  • A. Panuszko
  • B. Piotrowski
  • J. Stangret

  - JOURNAL OF MOLECULAR LIQUIDS - Rok 2019

  Trpzip-1, a simple β-hairpin, is a rare example of peptide with stable secondary structure and can be a convenient model to study temperature-related processes that potential prion or amyloid proteins undergo. Although its sequence is simple, the exact processes which the peptide undergoes in aqueous solutions are quite complex and not well understood. The selection of well-established experimental (DSC, FTIR) and theoretical methods...

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• BMC STRUCTURAL BIOLOGY

  Czasopisma

  ISSN: 1472-6807

• ADVANCES IN STRUCTURAL ENGINEERING

  Czasopisma

  ISSN: 1369-4332 , eISSN: 2048-4011

• Structural Monitoring and Maintenance

  Czasopisma

  ISSN: 2288-6605 , eISSN: 2288-6613

• JOURNAL OF STRUCTURAL GEOLOGY

  Czasopisma

  ISSN: 0191-8141