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Wyniki wyszukiwania dla: Relativistic atomic physics
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Experimental Investigations On The Momentum Pressure Drop During Flow Boiling Of R134a
PublikacjaThe article presents experimental investigations of the pressure drop during twophase flow. Experiments were performed for both adiabatic and heated flow of R134a. Obtained flow patterns were compared with the literature. Obtained data is used to validate momentum pressure drop predictions, a set of graphs showing comparisons, for a representative set of experimental conditions, of the two-phase frictional pressure gradients for...
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Discrete-continuous optimisation of an axial flow blood pump
PublikacjaThis paper presents results of discrete-continuous optimisation of an axial flow blood pump. Evolution Strategies (ES) are used as a global optimisation method in order to localise the optimal solution in relatively short time. The whole optimisation process is fully automated. This also applies to geometry modelling. Numerical simulations of the flow inside the pump is performed by means of the Reynolds-Average Navier-Stokes...
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Photoinduced electron transfer in 5-bromouracil labeled DNA. A contrathermodynamic mechanism revisited by electron transfer theories
PublikacjaThe understanding of the 5-bromouracil (BrU) based photosensitization mechanism of DNA damage is of large interest due to the potential applications in photodynamic therapy. Photoinduced electron transfer (ET) in BrU labeled duplexes comprising the 50 -GBrU or 50 -ABrU sequence showed that a much lower reactivity was found for the 50 -GBrU pattern. Since the ionization potential of G is lower than that of A, this sequence selectivity...
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On the relationship between the structural and volumetric properties of solvated metal ions in O-donor solvents using new structural data in amide solvents
PublikacjaThe structures of the N,N-dimethylformamide (dmf), N,N-dimethylacetamide (dma), and N,N-dimethylpropionamide (dmp) solvated strontium and barium ions have been determined in solution using large angle X-ray scattering and EXAFS spectroscopy. The strontium ion has a mean coordination number (CN) between 6.2 and 6.8, and the barium ion has a mean CN between 7.1 and 7.8 in these amide solvents. The non-integer numbers indicates that...
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Teleportation of geometric structures in 3D
PublikacjaThe simplest quantum teleportation algorithms can be represented in geometric terms in spaces of dimensions 3 (for real state vectors) and 4 (for complex state vectors). The geometric representation is based on geometric-algebra coding, a geometric alternative to the tensor-product coding typical of quantum mechanics. We discuss all the elementary ingredients of the geometric version of the algorithm: geometric analogs of states...
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Visible-light-induced photocatalysis through surface Plasmon excitation of gold on titania surfaces
PublikacjaPietnascie komercyjnych probek tlenku tytanu(IV) zostalo zmodyfikowanych zlotem za pomoca fotodepozycji oraz scharakteryzowanych. Fotoaktywnosci proszkow Au/TiO2 zostaly przebadane dla fotodegradacji kwasu octowego i 2-propanolu podczas naswietlania promieniowaniem widzialnym oraz ultrafioletowym. Wykazano, ze fotokatalityczne aktywnosci scisle zaleza od wlasciwosci nanoczastek zlota i tlenku tytanu. Analizy spektrum działania...
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Automatic Regularization by Quantization in Reducible Representations of CCR: Point-Form Quantum Optics with Classical Sources
PublikacjaElectromagnetic fields are quantized in a manifestly covariant way by means ofa class of reducible "center-of-mass N-representations" of the algebra of canonical commutationrelations (CCR). The four-potential Aa(x) transforms in these representations as aHermitian four-vector field in Minkowski four-position space (without change of gauge), butin momentum space it splits into spin-1 massless photons and two massless scalars. Whatwe...
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Hydrogen migration in photodissociation of the pyridine molecules
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Preparation, characterization and photocatalytic activity of metal-loaded NaNbO3
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Physico-chemical properties and possible photocatalytic applications of titanate nanotubes synthesized via hydrothermal method
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Impact of yttria stabilization on Tb3+ intra-shell luminescence efficiency in zirconium dioxide nanopowders
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Possible schemes of photoassociation processes in the KLi molecule with newly calculated potential energy curves
PublikacjaWe present four promising schemes for photoassociative formation of KLi molecule in its ground electronic state. Analysis is based on newly calculated adiabatic potentials supported by transition dipole moments and Franck-Condon factors.
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Proposal of edge-area form removal of cylindrical surfaces containing wide dimples by application of various robust processing techniques
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Validation of high-resolution 3D patient QA for proton PBS and IMPT using laser CT of improved polymer gel dosimeters
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Spikes removal in surface measurement
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3D dose verification with polymer gel detectors of brain-spine match line for proton pencil beam cranio-spinal: A preliminary study
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Problem of selection of reference plane with deep and wide valleys analysis
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Reduction of the end-effect in surface texture analysis
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Detection of measurement noise in surface topography analysis
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Problems of surface topography with oil pockets analysis
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The effect of heat exchanger geometry on adsorption chiller performance
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Effective processes of phenol degradation on Fe3O4–TiO2 nanostructured magnetic photocatalyst
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Preliminary Studies on a Lightweight Porous Cement-Based Composite – Gel Concrete
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Defect engineering, microstructural examination and improvement of ultrafast third harmonic generation in GaZnO nanostructures: a study of e-beam irradiation
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Synthesis and properties of CaFe2As2single crystals
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Coupling coefficients for the space group of the hexagonal close-packed structure
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On the dervative of the Legendre function of the first kind with respect to its degree [Corrigendum]
PublikacjaSkorygowano błąd matematyczny w pracy: R. Szmytkowski, On the derivative of the Legendre function of the first kind with respect to its degree, J. Phys. A: Math. Gen. Vol. 39(2006) s. 15147-15172 [744014]
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Closed forms of the Green's function and the generalized Green's function for the Helmholtz operator on the N-dimensional unit sphere
PublikacjaPokazano, że funkcję Greena dla operatora Helmholtza na N-wymiarowej sferze jednostkowej można wyrazić przez funcję Gegenbauera pierwszego rodzaju. W tych przypadkach, w których funkcja Greena nie istnieje, skonstruowano uogólnioną funkcję Greena.
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Adaptive resolution simulation of liquid para-hydrogen: testing the robustness of the quantum-classical adaptive coupling
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Oxidizing CO2 with superhalogens
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The quantum free energy barrier for hydrogen vacancy diffusion in Na3AlH6
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Dissociative electron attachment to HGaF4 Lewis–Brønsted superacid
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Mechanisms of carbon monoxide hydrogenation yielding formaldehyde catalyzed by the representative strong mineral acid, H2SO4, and Lewis–Brønsted superacid, HF/AlF3
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Elastic moduli of biological fibers in a coarse-grained model: crystalline cellulose and β-amyloids
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Superconducting properties of under- and over-doped BaxK1−xBiO3 perovskite oxide
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The thermodynamic critical field and specific heat of superconducting state in phosphorene under strain
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Strong-coupling character of superconducting phase in compressed selenium hydride
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On the critical temperature discontinuity at the theoretical bcc-fcc phase transition in compressed selenium and tellurium superconductors
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Revealing the anisotropy effects on the critical magnetic field in CaC6 superconductor
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Trace analyses of gaseous products formed during heat treatment of high stage H2SO4-GICs and expanded graphite
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The K x-ray line structures of the 3d-transition metals in warm dense plasma
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First-principles calculations of the lattice dynamics of CuInSe2
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Ab initio studies of phonons in MgO by the direct method including LO mode
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K X-ray line energies as diagnostics of warm dense plasma
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Creation of mesopores in carbon nanotubes with improved capacities for lithium ion batteries
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First-principles calculations for phonons in AgGaX2(X = Se,Te) chalcopyrite crystals
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Dynamics and stability of icosahedral Fe–Pt nanoparticles
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Modeling of the M X-ray line structures for tungsten and L X-ray line structures for molybdenum
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Modeling of the K and L x-ray line structures for molybdenum ions in warm dense Z-pinch plasma
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The K X-ray line structures for a warm dense copper plasma
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