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Actual field corrosion rate of offshore structures in the Baltic Sea along depth profile from water surface to sea bed
PublikacjaThe paper presents the results of field electrochemical investigations on the corrosion rate of carbon steel in seawater of the Baltic Sea at the location of the Baltic Beta production rig. The measurements were conducted throughout the year in seawater at different depths from the sea surface to the sea bed (about 75 m). The results revealed corrosion aggressiveness of the seawater along the entire depth profile. There was...
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About definition of modes and magnetosonic heating in a plasma’s flow: Especial cases of perpendicular and nearly perpendicular wave vector and magnetic field
PublikacjaDynamics of hydrodynamic perturbations in a plasma depend strongly on an angle between the wave vector and equilibrium straight magnetic field. The case of perpendicular propagation is especial. There are only two (fast) magnetosonic modes since two (slow) ones degenerate into the stationary one with zero speed of propagation. This demands individual definition of wave modes by the links of hydrodynamic relations. These links are...
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Maskowanie obiektu w kształcie elipsoidy w ziemskim polu magnetycznym = Masking ellipsoid-shaped object in the Earth's magnetic field
PublikacjaW pracy wyznaczono metodą analityczną rozkład okładu prądowego uzwojeń wewnątrz obiektu o powłoce ferromagnetycznej w kształcie wydłużonej elipsoidy, który redukuje zaburzenie rozkładu pola magnetycznego na zewnątrz obiektu.
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Fragility analysis of structural pounding between adjacent structures arranged in series with various alignment configurations under near‑field earthquakes
PublikacjaA major cause of local to total damages is related to structural pounding in a large number of past earthquakes. In general, these collisions take place as a result of differences in the dynamic characteristics of the colliding structures. To acquire a better perception of the behavior of structures, in this paper, three structures featuring different heights are modeled in series and with various configurations next to each other...
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Stability analysis of nanobeams in hygrothermal environment based on a nonlocal strain gradient Timoshenko beam model under nonlinear thermal field
PublikacjaThis article is dedicated to analyzing the buckling behavior of nanobeam subjected to hygrothermal environments based on the principle of the Timoshenko beam theory. The hygroscopic environment has been considered as a linear stress field model, while the thermal environment is assumed to be a nonlinear stress field based on the Murnaghan model. The size-dependent effect of the nanobeam is captured by the nonlocal strain gradient...
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Increased water content in bacterial cellulose synthesized under rotating magnetic fields
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Bacterial cellulose yield increased over 500% by supplementation of medium with vegetable oil
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Influence of the extraction mode on the yield of some furanocoumarins from Pastinaca sativa fruits
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Effect of extraction method on the yield of furanocoumarins from fruits ofArchangelica of?cinalis Hoffm.
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Comparison of EFD and CFD investigation of velocity fields for selected body-propeller configurations
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Comparison of EFD and CFD investigation of velocity fields for selected body-propeller configurations
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Two-photon double ionization of atoms in attosecond x-ray radiation fields
PublikacjaWe consider two-photon double ionization of helium with 100, 200, and 400 eV excess energy for the two ejected electrons, corresponding to photon energies of 89.5, 139.5, and 239.5 eV, respectively. We focus on the case of ultrashort pulses (two oscillations of the field) and develop an approach to calculate the two-photon transition matrix elements within the lowest order of the time-dependent perturbation theory. One of the...
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Phenotypic yield and its structure variability of moderately late and late potato cultivars
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Effect of the Climatic Conditions in Central Europe on the Growth and Yield of Cornelian Cherry Cultivars
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Propagation in a ferrite cylindrical waveguide magnetized by a two four-pole magnetic fields.
PublikacjaUżywając metody rodzajów sprzężonych rozwiązano zagadnienie ferrytowego falowodu cylindrycznego magnesowanego poprzecznie w układzie elektronicznie obracanego czterobiegunowego pola magnetycznego. W falowodzie występuje zjawisko dwójłomności i przesunięcia fazy. Badano zmiany stanu polaryzacji fali elektromagnetycznej na wyjściu falowodu o różnej długości. Wyniki wykorzystano do zaprojektowania sekcji półfalowej falowodu, w której...
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Machine learning for the management of biochar yield and properties of biomass sources for sustainable energy
PublikacjaBiochar is emerging as a potential solution for biomass conversion to meet the ever increasing demand for sustainable energy. Efficient management systems are needed in order to exploit fully the potential of biochar. Modern machine learning (ML) techniques, and in particular ensemble approaches and explainable AI methods, are valuable for forecasting the properties and efficiency of biochar properly. Machine-learning-based forecasts,...
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Influence of electric, magnetic and electromagnetic fields on the circadian system – current stage of knowledge
PublikacjaOne of the side effects of each electrical device work is the electromagnetic field generated near its workplace. All organisms, including humans, are exposed daily to the influence of different types of this field, characterized by various physical parameters. Therefore, it is important to accurately determine the effects of an electromagnetic field on the physiological and pathological processes occurring in cells, tissues and...
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Sawing Processes as a Way of Determining Fracture Toughness and Shear Yield Stresses of Wood
PublikacjaA new computational model, based on fracture mechanics, was used to determine cutting forces. Unlike traditional computing methods, which depend on many coefficients reflecting the machining of solid wood, the new model uses two main parameters: fracture toughness and shear yield stresses. The aim of this study was to apply this new method to determine these parameters for the tooth cutting edge principal positions and longitudinal...
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IEEE Symposium on Field Programmable Custom Computing Machines
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Workshop on the Arithmetic of Finite Fields
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Tribologie fur instabil belastete menschliche gelenke im magnetischen feld.
PublikacjaPrzedstawiono mechanizm funkcjonowania, smarowania oraz zużycia stawów człowieka. Wykazano konieczność regeneracji ubytków głów kostnych stawu. Zilustrowano możliwości hodowli tkanek do celów transplantacji w bioreaktorach. W wybranych stawach wyznaczono wartości rozkładów ciśnienia hydrodynamicznego z jednoczesnym obliczeniem wartości sił nośnych.
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Piotr Jasiński prof. dr hab. inż.
OsobyPiotr Jasinski obtained MSc in electronics in 1992 from the Gdansk University of Technology (GUT), Poland. Working at GUT, he received PhD in 2000 and DSc in 2009. Between 2001 and 2004 Post Doctoral Fellow at Missouri University of Science and Technology, while between 2008 and 2010 an Assistant Research Professor. Currently is an Associate Professor at Gdansk University of Technology working in the field of electronics, biomedical...
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First Measurements of the Earth’s Electric Field at the Arctowski Antarctic Station, King George Island, by the New Polish Atmospheric Electricity Observation Network
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Interactions between Marek’s disease virus Rispens/CVI988 vaccine strain and adenovirus field strain in chicken embryo fibroblast (CEF) cultures
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Optimization of the UNRES Force Field by Hierarchical Design of the Potential-Energy Landscape. 1. Tests of the Approach Using Simple Lattice Protein Models
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Prediction of protein structure with the coarse-grained UNRES force field assisted by small X-ray scattering data and knowledge-based information
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Farmyard manure alone and combined with immobilizing amendments reduced cadmium accumulation in wheat and rice grains grown in field irrigated with raw effluents
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Torsional stability capacity of a nano-composite shell based on a nonlocal strain gradient shell model under a three-dimensional magnetic field
PublikacjaThis paper considers a single-walled composite nano-shell (SWCNS) exposed in a torsional critical stability situation. As the magnetic field affects remarkably nanostructures in the small size, a three-dimensional magnetic field is assessed which contains magnetic effects along the circumferential, radial and axial coordinates system. Based on the results of the nonlocal model of strain gradient small-scale approach and the first-order...
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Magnetic-field-induced electric quadrupole moments for relativistic hydrogenlike atoms: Application of the Sturmian expansion of the generalized Dirac-Coulomb Green function
PublikacjaWe consider a Dirac one-electron atom placed in a weak, static, uniform magnetic field. We show that, to the first order in the strength of the external field, the only electric multipole moments, which are induced by the perturbation in the atom, are those of an even order. Using the Sturmian expansion of the generalized Dirac-Coulomb Green function we derive a closed-form expression for the electric quadrupole moment induced...
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Stable Field Electron Emission and Plasma Illumination from Boron and Nitrogen Co‐Doped Edge‐Rich Diamond‐Enhanced Carbon Nanowalls
PublikacjaSuperior field electron emission (FEE) characteristics are achieved in edge-rich diamond-enhanced carbon nanowalls (D-ECNWs) grown in a single-step chemical vapor deposition process co-doped with boron and nitrogen. The structure consists of sharp, highly conductive graphene edges supplied by a solid, diamond-rich bottom. The Raman and transmission electron microscopy studies reveal a hybrid nature of sp3-diamond and sp2-graphene...
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Inner-shell fragmentation of molecules into neutral fragments in high-Rydberg states induced by soft X-ray excitation with pulsed-field ionization
PublikacjaIn the present communication, we will show the results of measurements probing the production of neutral high-Rydberg fragments at the K edges of the molecules containing oxygen and nitrogen atoms. The experiments were performed at the Gas Phase beamline of the Elettra synchrotron radiation laboratory (Trieste, Italy), exploiting a combined soft X-ray excitation with pulsed-field ionization and ion time-of-flight (TOF) spectrometry...
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AN OVERVIEW OF HEAT TRANSFER ENHANCEMENT BASED UPON NANOPARTICLES INFLUENCED BY INDUCED MAGNETIC FIELD WITH SLIP CONDITION VIA FINITE ELEMENT STRATEGY
PublikacjaThe mathematical model of heat generation and dissipation during thermal energy transmission employing nanoparticles in a Newtonian medium is investigated. Dimensionless boundary layer equations with correlations for titanium dioxide, copper oxide, and aluminium oxide are solved by the finite element method. Parameters are varied to analyze their impact on the flow fields. Various numerical experiments are performed consecutively...
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UAV Survey Images - orthophotomap- Gdansk University of Technology campus photogrametry test field- MP1
Dane BadawczeDataset description: Raw images from photogrammetric survey. Object: The photogrametry test field within Gdansk University Of Technology CampusLocation: Gdansk, Pomerania, PolandDrone type: DJI Mavic Pro 1Flight plan: Single GridTarget Product: 3D ModelDate: 17.05.2022Direct georeferencing: yesMetadata data: yes/GPSGCP: YESGCP Quality: RTKCamera Name:...
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UAV Survey Images - orthophotomap- Gdansk University of Technology campus photogrametry test field- MP2
Dane BadawczeDataset description: Raw images from photogrammetric survey. Object: The photogrametry test field within Gdansk University Of Technology CampusLocation: Gdansk, Pomerania, PolandDrone type: DJI Mavic Pro 2Flight plan: Single GridTarget Product: 3D ModelDate: 17.05.2022Direct georeferencing: yesMetadata data: yes/GPSGCP: YESGCP Quality: RTKCamera Name:...
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The compliance of work with the chosen field of studies by Gdańsk University of Technology graduates – years 2010-2012
Dane BadawczeThe dataset includes data from the survey on the Gdańsk University of Technology graduates from years 2010-2012 on the compliance of their work with the chosen field of studies. The survey was conducted in the period from 2012 to 2014, two years after the respondents obtained graduate status. The research sample included 1586 respondents. Summarizing,...
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The compliance of work with the chosen field of studies of the Gdańsk University of Technology graduates – years 2013-2018
Dane BadawczeThe dataset includes data from the survey on the Gdańsk University of Technology graduates from years 2013-2018 on the compliance of their work with the chosen field of studies. The survey was conducted in the period from 2015 to 2020, two years after the respondents obtained graduate status. The research sample included 11190 respondents. Summarizing,...
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“Electromagnetic ULF/ELF Fields on Earth and in Space” Conference, Warsaw, Poland, 2019. Preface
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Phytotechnology applied to municipal wastewater treatment on irrigated fields of Gdansk (Poland) (1872-1992)
PublikacjaPola nawadniane ściekami w Gdańsku zbudowane zostały w roku 1872 i pracowały do roku 1992. Obejmowały one 320 ha piasków nadmorskich w miejscowości Gdansk Sianki, między Wisloujściem a Stogami. Obciążenie hydrauliczne pól wynosiło początkowqo 3000 mm rocznie, ale stopniowo wzrastało aż do poziomu 8000 mm rocznie. Pola pokryte były monokulturą trawiasta złożoną głównie z perzu, a zagłębieniach terenowych występowała głównie pokrzywa....
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Ab initio and experimental studies of polarization and polarization related fields in nitrides and nitride structures
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Application of Rotating Magnetic Fields Increase the Activity of Antimicrobials Against Wound Biofilm Pathogens
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Identification of Markers Associated with Yield Traits and Morphological Features in Maize (Zea mays L.)
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Stimulated by cyclodextrins high yield synthesis of azocrown analogues comprising pyrrole or imidazole residues
PublikacjaThe influence of cyclodextrins (CDs) on the formation of azocrown ethers comprising pyrrole, imidazole and substituted imidazole has been studied. Pyrrole, imidazole, 2-methyl-, 4-methyl- and 4-phenylimidazole were coupled with bisdiazonium salts derived from bis-1,5-(2-aminophenoxy)-3-oxapentane or bis-1,8-(2-aminophenoxy)-3,6-dioxaoctane to form macrocyclic compounds with two azo units. The syntheses were performed under standard...
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Estimation of nitrogen leaching load from agricultural fields in the Puck Commune with an interactive calculator
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THE EFFECT OF DIFFERENT MOLECULAR WEIGHTS OF CHITOSAN ON THE YIELD, QUALITY, AND HEALTH-PROMOTING PROPERTIES OF STRAWBERRIES
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The effect of application of biopreparations and fungicides on the yield and selected parameters of seed value of seed potatoes
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The influence of methods of potato weed control and meteorological conditions on shaping the tuber yield structure
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Energy resolution and non-proportionality of the light yield of pure CsI at liquid nitrogen temperatures
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Variability of Hordeum vulgare L. Cultivars in Yield, Antioxidant Potential, and Cholinesterase Inhibitory Activity
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The interaction of different abiotic conditions on the value of the component traits of the technological yield of sugar beet
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Stimulated by cyclodextrins high yield synthesis of azocrown analogues comprising pyrrole or imidazole residues
PublikacjaBadano wpływ cyklodekstryn na reakcję syntezy aza-eterów zawierających w strukturze pirol lub imidazol. Stosowano alfa-, beta- i gamma-cyklodekstryny. Uzyskane wyniki analizowano pod kątem sposobu umieszczenia cząsteczki azolu we wnęce cyklodekstryny.