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Search results for: STRUKTURA DRUGORZEDOWA
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Optimal Shape Refurbishment of Distorted Dome Structure with Safeguarding of Member Stress
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Structural, thermal and photocatalytic properties of composite materials SiO2/TiO2/C
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Lamb Wave Based Structural Damage Detection Using Stationarity Tests
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Structure – chiroptical properties relationship of cisoid enones with an α-methylenecyclopentanone unit
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Synthesis and comprehensive structural and physicochemical characterization of dutasteride hydrochloride hydrate solvates
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Analysis of molecular structure of starch citrate obtained by a well-stablished method
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Structural properties and adsorption of uranyl ions on the nanocomposite hydroxyapatite/white clay
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The role of intermolecular interactions in stabilizing the structure of the nematic twist-bend phase
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Analysis of the amount of retained austenite in the structure of steel rolls for sheet rolling
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Influence of TiO2 structure on its photocatalytic activity towards acetaldehyde decomposition
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Effects of Coulomb interaction on the electronic structure and lattice dynamics of the Mott insulatorFe2SiO4spinel
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Poly(vinyl alcohol)/GO-MMT nanocomposites: Preparation, structure and properties
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Enhancement of the structure stability of MOF‐5 confined to multiwalled carbon nanotubes
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Structural Determinants of Substrate Specificity of SplF Protease from Staphylococcus aureus
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Structure and elastic properties of Mg(OH)2from density functional theory
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Structure and wettability of heterogeneous monomolecular films of phospholipids with cholesterol or lauryl gallate
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Pincer Complexes Based on Phosphinoaminopyridines: Synthesis, Structural Characterization and Catalytic Applications
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Hybrid carbon-TiO2 spheres: Investigation of structure, morphology and spectroscopic studies
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Propagation of guided elastic waves in shell-type aircraft structural elements
PublicationW pracy przedstawiony powłokowy spektralny element skończony do analizy zjawiska propagacji fal sprężystych w elementach konstrukcyjnych typu powłokowego.
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Structural properties of hydration shell around various conformations of simple polypeptides
PublicationIn this paper we investigate structural properties of water within the solvation shell around the peptide core created by a well-defined conformation of polypeptide chain. The following secondary structures are investigated: linear (straight chain), and three helices PII (polyproline-like), 310, and α. We propose using the two-particle contribution to entropy as a rational measure of the water structural ordering within the solvation...
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Processing data on sea bottom structure obtained by means of the parametric sounding
PublicationThe aim of the paper is to analyze data obtain during sounding of the Gdansk Bay by means of the parametric sonar. The accuracy of the sea bottom structure investigation needs the correct configuration of research equipment and the proper calibration of peripheral devices (GPS, heading sensor, motion sensor MRU-Z and navigation units) which provide necessary data to bathymetrical measurement system enabling its work with whole...
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Linear viscoelastic modelling of damage-involved structural pounding during earthquakes
PublicationDamage-involved structural pounding during earthquakes has been recently intensively studied using different impact force models. The results of the previous studies indicate that the linear viscoelastic model is relatively simple yet accurate in modelling pounding-involved behaviour of structures during earthquakes. The only shortcoming of the model is a negative value of the pounding force occurring just before separation, which...
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Hydrogen induced degradation of structural steel exposed to the technical liquid hydrocarbons
PublicationBadano degradacje stali 26H2MF w mieszaninach węglowodorów. Badania były prowadzone pod stałym obciążeniem i przy małej prędkości 10-6s-1
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Propagation of elastic waves in structural elements by spectral finite element methods
PublicationW pracy przedstawiono metodę elementów spektralnych w zastosowaniu do analizy propagacji fal sprężystych w elementach konstrukcyjnych.
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Simulation of damage process of containership's side structure due to collision with a rock
PublicationW artykule przedstawiono wyniki uproszczonego modelowania numerycznego procesu kolizji burty kontenerowca ze skałą. Analiza wyników modelowania pozwala wyciągnąć wnioski o charakterze zjawiska jak również określić obszar i głębokość uszkodzenia wywołanego przez penetrującą skałę w celu doboru wymiarów geometrii i wypełniacza dla drugiej bariery ochronnej.
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Economic growth, structural change and quality upgrading in New Member States
PublicationThe purpose of this research is to present the recent developments concerning structural change and productivity growth in New Member States and the role played in such process by country specific factors. We focus on ten countries (NMS-10) which joined the EU in 2004 and analyze productivity dynamics of their labor structures between the years 1995 and 2005 in a comparative setting versus EU-15 economies. NMS-10 have gone through...
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Committee of Electronics and Telecommunications Polish Academy of Sciences Structure – Activities – Perspectives
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Quantitative structure–retention relationships in affinity high-performance liquid chromatography
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The influence of laser alloying on the structure and mechanical properties of AlMg5Si2Mn surface layers
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Hyperfine Structure Study of Several Lines of207Pb I – Part II
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Influence of chemical composition of amide block on the thermal properties and structure of terpolymers
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Fluorescent Tricyclic Analogues of Acyclovir and Ganciclovir. A Structure−Antiviral Activity Study
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Azomacrocyclic derivatives of imidazole: synthesis, structure, and metal ion complexation properties
PublicationNew azocrown ethers comprising imidazoles in the macrocycle have been synthesized. Imidazole, 2-methyl-, 4-methyl-, and 4-phenylimidazole were incorporated to form macrocyclic units by coupling with the appropriate bis-diazonium salts. The syntheseswere performed under high dilution conditions. The X-ray structure of a water adduct of the 21-membered crown ether derivative of 4-methylimidazole 8 has been solved. Metal...
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Electronic structure of PrBa2Cu3O7 after high-pressure compressionfrom first principles
PublicationW pracy zbadano wpływ ściskania wysokociśnieniowego (P=9GPa) na elektronową strukturę pasmową, rozkład ładunku i momenty magnetyczne w pełni utlenionego stechiometrycznego układu PrBa2Cu3O7. Zaobserwowano następujące zmiany wywołane ściskaniem: (1) zmniejszoną gęstość stanów (DOS) na poziomie Fermiego Ef, (2) zwiększona różnicę pomiędzy wartościami DOS dla stanów "spin-up" i "spin-down" w najbliższym otoczeniu Ef, (3) zmniejszone...
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Minimal parameter implicit solvent model for ab initioelectronic-structure calculations
PublicationAbstract - We present an implicit solvent model for ab initio electronic-structure calculations which is fully self-consistent and is based on direct solution of the nonhomogeneous Poisson equation. The solute cavity is naturally defined in terms of an isosurface of the electronic density according to the formula of Fattebert and Gygi (J. Comput. Chem., 23 (2002) 662). While this model depends on only two parameters, we demonstrate...
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Molecular and structural characteristics of cod gelatin films modifiedwith EDC and TGase
PublicationCod gelatin films before and after cross-linking of gelatin with 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) or transglutaminase (TGase) have been characterized by FT-IR spectroscopy and DSC analysis. For comparison, a film prepared from unmodified pig gelatin has been also analysed. The difference spectra showed that cod gelatin during the film formation involved first of all water-to-amide hydrogen bonds, and the film...
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Structure elucidation of carbamoylo-β-lactam diastereoisomers by ROESY and NOESY experiments
PublicationRecently we have focused in the problem of preparation of carbamoylo-β-lactams as a result of oxidative cyclization of malonyl enamides. In our experiments we obtain mixture of two main β-lactam products: as a result of subsequent elimination and a second as a product of substitution. All of the produced β-lactams have trans configuration what was confirmed by 1H coupling constants. However id should be stressed that in the case...
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Structure of sol-gel derived Nb2O5 films for active coating devices
PublicationW artykule przedstawiono wyniki badań struktury cienkich warstw nb2o5 otrzymywanych metodą zol-żel. wytworzone warstwy charakteryzowano pod kątem zastosowania jako materiałów na aktywne pokrycia fotoniczne.
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Acetylcholinesterase inhibitors: structure-activity relationship and kinetic studies on selected flavonoids
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PbGa2GeS6 crystal as a novel nonlinear optical material: Band structure aspects
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Two-phase flow structure assessment based on dynamic image analysis
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FPGA Implementation of the Gradient Adaptive Lattice Filter Structure for Feature Extraction
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Spillover and risk transmission in the components of the term structure of eurozone yield curve
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Plasmon and structure resonances in the scattering of light by a periodic chain of silver nanocylinders
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Structural Analysis Procedure and Applicability Review of Spudcan Considering Soil Types
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Thresholds of Lasing as Solutions of Characteristic Equation for a VCSEL-type Layered Structure
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Application of the fluid–structure interaction technique for the analysis of hydrodynamic lubrication problems
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FINANCIAL RESILIENCE TO THE COVID-19 PANDEMIC: THE ROLE OF BANKING MARKET STRUCTURE
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Eco-Friendly Ether and Ester-Urethane Prepolymer: Structure, Processing and Properties
PublicationThis study concerns bio-based urethane prepolymers. The relationship between the chemical structure and the thermal and processing parameters of bio-based isocyanate-terminated ether and ester-urethane prepolymers was investigated. Bio-based prepolymers were obtained with the use of bio-monomers such as bio-based diisocyanate, bio-based polyether polyol or polyester polyols. In addition to their composition, the bio-based prepolymers...
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Predicting the peak structural displacement preventing pounding of buildings during earthquakes
PublicationThe aim of the present paper is to verify the effectiveness of the artificial neural network (ANN) in predicting the peak lateral displacement of multi-story building during earthquakes, based on the peak ground acceleration (PGA) and building parameters. For the purpose of the study, the lumped-mass multi-degree-of-freedom structural model and different earthquake records have been considered. Firstly, values of stories mass and...