Wyszukiwarka
Filtry
wszystkich: 1652
wyświetlamy 1000 najlepszych wyników Pomoc
Wyniki wyszukiwania dla: GAMMA-RAY ABSORPTION
-
Determination of total mercury in fish and cormorant using cold vapour atomic absorption spectrometry
PublikacjaW pracy opisano technikę CV-AAS do oznaczania zawartości rtęci całkowitej w tkankach ryb i kormorana. Przedstawiono proces walidacji zastosowanej procedury analitycznej, w ramach którego wyznaczono takie parametry walidacyjne jak:- selektywność,- liniowość (r>0,993),- zakres pomiarowy (0,29-100 ng),- poprawność (odzysk 98%),- powtarzalność (CV <10%).Wartość rozszerzonej niepewności <13%.Przedstawiono wyniki pomiarów dla 8 gatunków...
-
Single‐walled carbon nanotubes modified by PFO: An optical absorption and Raman spectroscopic investigation
Publikacja -
Microwave absorption study on (Bi, Pb)-Sr-Ca-Cu-O granular superconductors
PublikacjaNadprzewodniki granulaste są bardzo ciekawymi materiałami dzięki temu, że zawierają dużą ilość złącz Josephsona. W pracy przedstawiono absorpcję mikrofalową w granulastych nadprzewodnikach (Bi, Pb)-Sr-Ca-Cu-O zawierających granule 2201, 2212 i 2223 umieszczone w matrycy dielektrycznej. Obserwowano dwustopniowe przejście do stanu nadprzewodzącego. Sygnał MMMA obserwowano poniżej temperatury T1.
-
Different Aspects of the Elemental Analysis of Honey by Flame Atomic Absorption and Emission Spectrometry: A Review
Publikacja -
Photoacoustic and optical absorption spectroscopy studies of luminescentCr3+andCr4+centers in yttrium aluminum garnet
Publikacja -
CMS data processing workflows during an extended cosmic ray run
Publikacja -
Alignment of the CMS muon system with cosmic-ray and beam-halo muons
Publikacja -
Commissioning and performance of the CMS silicon strip tracker with cosmic ray muons
Publikacja -
European X-Ray Free Electron Laser (EXFEL): local implications
Publikacja -
Comparison of LaCl3:Ce and NaI(Tl) scintillators in γ-ray spectrometry
Publikacja -
K X-ray line energies as diagnostics of warm dense plasma
Publikacja -
Relativistic calculations of X-ray photoelectron spectra and the accuracy of the IOTC method*
Publikacja -
The K X-ray line structures for a warm dense copper plasma
Publikacja -
Data obtained by computation for X-ray focusing using oriented Gaussian beams
Dane BadawczeThe propagation of X-ray waves through an optical system consisting of several X-ray refractive lenses is considered. Gaussian beams are exact solutions of the paraxial equation. The Helmholtz equation describes the propagation of a monochromatic electromagnetic wave. Since the widths of the beams are much larger than the wavelength of X-rays, Gaussian...
-
Proton transfer and hydrogen bonds in supramolecular, self-assembled structures of imidazolium silanethiolates. X-ray, spectroscopic and theoretical studies
PublikacjaThe reaction of 1-methylimidazole, 2-ethyl-4-methylimidazole and 2-ethylimidazole with tris(2,6- diisopropylphenoxy)silanethiol (TDST) leads to the formation of three new salts, which have been characterized by elemental analyses, thermogravimetric analyses, FTIR spectroscopy, and their structures were determined by single-crystal X-ray diffraction. Structural analyses indicate that in all three compounds a proton transfer has...
-
Application of vibrational spectroscopy, thermal analyses and X-Ray diffraction in the rapid evaluation of the stability in solid-state of ranitidine, famotidine and cimetidine
PublikacjaThis paper reports the study on applicability of Fourier transform infrared (FTIR), near-infrared (NIR) and Raman spectroscopy, differential scanning calorimetry (DSC) and X-ray diffraction (XRD) for the estimation of the chemical stability and photostability of histamine H2-receptor antagonist substances. Ranitidine hydrochloride (RAN), famotidine (FAM) and cimetidine (CIM) were tested and differences in sensitivity were measured...
-
Ray Cao master
Osoby -
Determination of butyltin stabilizers in PVC using Liquid-Phase microextraction with electrothermal atomic absorption spectrometry
Publikacja -
Water absorption and blistering of glass fibre-reinforced polymer marine laminates with nanoparticle-modified coatings
PublikacjaMacro and microstructural damage was studied in typical glass fibre-reinforced polymer laminates with two types of coating systems – (a) isophtalic gel coat: pure or mixed with SiO2 nanoparticles 5 wt% (5%N) or 10 wt% (10%N) and (b) a two-layer coating system: urethane-modified vinyl ester-based gel coat and additional polyester barrier coat layer. Accelerated tests were performed at 50C for 50 days for specimens with nanoparticle-modified...
-
Anomalous diffraction approach to the visible spectra of absorption by marine particles with power-law size distributions
Publikacja -
Highly efficient absorption of THz radiation using waveguide-integrated carbon nanotube/cellulose aerogels
Publikacja -
Periodicity-induced effects in the scattering and absorption of light by infinite and finite gratings of circular silver nanowires
Publikacja -
XRD (X-ray diffraction) spectra of bulk boron and obtained borophene
Dane BadawczeThis dataset includes XRD (X-ray diffraction) spectra of bulk boron and borophene obtained during sonication process, giving the information on the phase composition and crystallinity of materials.
-
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...
-
Study of microstress state of P91 steel using complementary mechanical Barkhausen, magnetoacoustic emission, and X-ray diffraction techniques
PublikacjaThe paper deals with assessment of microstress state of martensite P91 steel using three complementary techniques: mechanical Barkhausen emission, magnetoacoustic emission (MAE), and X-ray diffraction (XRD) profile analysis. Magnetic coercivity Hc and microstructure were investigated with inductive magnetometry and magnetic force microscopy (MFM), respectively. Internal stress level of P91 steel was modified by heat treatment....
-
Data obtained by numerical simulation for X-ray focusing using a finite difference method
Dane BadawczeThe propagation of X-ray waves through an optical system consisting of many X-ray refractive lenses is considered. For solving the problem for an electromagnetic wave, a finite-difference method is applied.
-
Mechanical and fracture properties of concrete reinforced with recycled and industrial steel fibers using Digital Image Correlation technique and X-ray micro computed tomography
PublikacjaPaper presents investigation of fracture phenomenon in plain concrete and in concrete reinforced with both recycled steel fibers (RSF) and industrial steel fibers (ISF). The wedge splitting test (WST), which enables stable crack propagation for quasi-brittle materials, was carried out on 75 75 75 mm cube samples. Initially, fracture process zone development was investigated only on the surface of samples using Digital Image Correlation...
-
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...
-
Performance of the CMS hadron calorimeter with cosmic ray muons and LHC beam data
Publikacja -
Use of X-Ray Computed Tomography for Ice Detection Applied to Organ Cryopreservation
Publikacja -
Ovarian tissue cryopreservation by stepped vitrification and monitored by X-ray computed tomography
Publikacja -
X-ray and NMR structural studies of the series of porphyrazines with peripheral pyrrolyl groups
Publikacja -
Structure of Kα1,2 - and Kβ1,3 -emission x-ray spectra for Se, Y, and Zr
Publikacja -
Precise x-ray energies of gadolinium determined by a combined experimental and theoretical approach
Publikacja -
Detection of Chest X-ray Abnormalities Using CNN Based on Hyperparameter Optimization
Publikacja -
BIOLOGICAL AGE ASSESSMENT ALGORITHMS BASED ON X-RAY IMAGES OF BONE TISSUE
Publikacja-
-
Journal of Surface Investigation-X-Ray Synchrotron and Neutron Techniques
Czasopisma -
Influence of Polymorphisms in DNA Repair GenesXPD, XRCC1andMGMTon DNA Damage Induced by Gamma Radiation and its Repair in LymphocytesIn Vitro
Publikacja -
Solid-state fermentation for enhanced production of selenium nanoparticles by gamma-irradiated Monascus purpureus and their biological evaluation and photocatalytic activities
Publikacja -
New and potent production platform of the acetylcholinesterase inhibitor huperzine A by gamma-irradiated Alternaria brassicae under solid-state fermentation
Publikacja -
Extracellular biosynthesis of cobalt ferrite nanoparticles by Monascus purpureus and their antioxidant, anticancer and antimicrobial activities: Yield enhancement by gamma irradiation
Publikacja -
Gamma rays-assisted bacterial synthesis of bimetallic silver-selenium nanoparticles: powerful antimicrobial, antibiofilm, antioxidant, and photocatalytic activities
Publikacja -
Mechanical and radiation shielding properties of concrete reinforced with boron--basalt fibers using Digital Image Correlation and X--ray micro--computed tomography
PublikacjaThe paper presents experimental investigations of the radiation shielding, mechanical and fracture properties of concrete reinforced with 5 kg/m3 of novel basalt fibers infused with boron oxide (BBF). However, further studies concerning other dosages i.e. 1 kg/m3, 10 kg/m3, 15 kg/m3 and 20 kg/m3 are currently carried out. Experiments with neutron source revealed that addition of BBF as a dispersed concrete reinforcement could improve...
-
A study of optical properties and annealing effect on the absorption edge of pristine- and iodine-doped polyazomethine thin films
Publikacja -
Oral antibiotic therapy improves fat absorption in cystic fibrosis patients with small intestine bacterial overgrowth
Publikacja -
The effect of alcohols as vehicles on the percutaneous absorption and skin retention of ibuprofen modified with l-valine alkyl esters
Publikacja -
Inulin and fructooligosaccharide affect in vitro calcium uptake and absorption from calcium-enriched gluten-free bread
Publikacja -
Hydraulic Conductivity Estimation Test Impact on Long-Term Acceptance Rate and Soil Absorption System Design
Publikacja -
Improvement of CO2 absorption and inhibition of NH3 escape during CaCO3 precipitation in the presence of selected alcohols and polyols
PublikacjaThis research aims to investigate the effect of selected organic substances containing hydroxyl groups on the reduction of NH3 escape and the improvement of CO2 capture during the precipitation of calcium carbonate by carbonation method using post-distillation liquid from the Solvay process and gas stream containing CO2 in the amount corresponding to the exhausted gases produced by the combustion of fossil fuels. Glycerol, ethylene...
-
Marta Kuc-Czarnecka dr
OsobyMarta Kuc-Czarnecka jest zastępczynią kierownika Katedry Statystyki i Ekonomii na Wydziale Zarządzania i Ekonomii Politechniki Gdańskiej. Pełni również funkcję pełnomocniczki Dziekana ds. akredytacji AMBA. Jest współzałożycielką Rethinking Economics Gdańsk oraz członkinią Fundacji im. Edwarda Lipińskiego na rzecz promocji pluralizmu w naukach ekonomicznych. W latach 2018-2022 była ekspertką Europejskiej Fundacji na Rzecz Poprawy...