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109 results on '"Mickevicius, S."'

1. Ptychography imaging of the phase vortices in the x-ray beam formed by nanofocusing lenses

Author

Dzhigaev, D., Lorenz, U., Kurta, R., Seiboth, F., Stankevic, T., Mickevicius, S., Singer, A., Shabalin, A., Yefanov, O., Strikhanov, M. N., Falkenberg, G., Schroer, C. G., Feidenhans`l, R., and Vartanyants, I. A.

Subjects
Physics - Optics
Abstract

We present the ptychography reconstruction of the x-ray beam formed by nanofocusing lenses (NFLs) containing a number of phase singularities (vortices) in the vicinity of the focal plane. As a test object Siemens star pattern was used with the finest features of 50 nm for ptychography measurements. The extended ptychography iterative engine (ePIE) algorithm was applied to retrieve both complex illumination and object functions from the set of diffraction patterns. The reconstruction revealed the focus size of 91.4$\pm$1.1 nm in horizontal and 70$\pm$0.3 nm in vertical direction at full width at half maximum (FWHM). The complex probe function was propagated along the optical axis of the beam revealing the evolution of the phase singularities., Comment: 5 pages, 3 figures, Proceedings of ICXOM22 Conference, 2-6 September 2013, Hamburg, Germany

Published
2013
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2. Correlations in self-bound systems of identical fermions

Author

Kamuntavicius, G., Masalaite, A., Mickevicius, S., Germanas, D., Kalinauskas, R., and Zemaiciuniene, R.

Subjects
Nuclear Theory
Abstract

A method for the calculation of translationally invariant wave functions for systems of identical fermions with arbitrary potential of pair interaction is developed. It is based on the well-known result that the essential dynamic part of the Hamiltonian for the system of identical particles is the Reduced Hamiltonian operator describing relative movement of two particles inside the system. The eigenfunctions of this operator take into account all correlations caused by interaction. These eigenfunctions are basic for the construction of the components (i.e. the functions with a lower degree of antisymmetry) of the system wave functions. The main problem of this approach appears to be antisymmetrization of the components. The developed universal algorithm for antisymmetrization gives a possibility to perform this operation in a simple way and keep numerical approximations under control., Comment: 20 pages REVTeX, submitted to Lithuanian J. Phys

Published
2006
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3. Toy model of the Nucleon - Nucleon potential

Author

Kamuntavicius, G. P., Masalaite, A., and Mickevicius, S.

Subjects
Nuclear Theory
Abstract

We start from a system of six interacting constituent quarks and examine how the picture of two nucleons can change when substructure of the nucleons are taken into account., Comment: 9 pages, 6 figures, proceedings of the international conference "Nuclear Structure and Related Topics"

Published
2006
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4. Colour-singlet clusters in systems composed of six quarks

Author

Mickevicius, S. and Kamuntavicius, G. P.

Subjects
Nuclear Theory
Abstract

We present an investigation of six quarks system kinematics, independent on quark-quark interactions. There has been created and investigated basis of six quarks antisymmetrical and translationally invariant functions, applying formalism with spin, isospin, and color degrees of freedom and many-particle harmonic oscillator (HO) functions, dependent on Jacobian variables. We have also investigated expansions of realistic wave-functions in this basis. There are given analytical expressions for matrix elements of three and six particle antisymmetrizers and probability to find two colorless hadrons in six quarks system., Comment: 5 pages, 1 table

Published
2003

5. The general harmonic-oscillator brackets: compact expression, symmetries, sums and Fortran code

Author

Kamuntavicius, G. P., Kalinauskas, R. K., Barrett, B. R., Mickevicius, S., and Germanas, D.

Subjects
Nuclear Theory
Abstract

We present a very simple expression and a Fortran code for the fast and precise calculation of three-dimensional harmonic-oscillator transformation brackets. The complete system of symmetries for the brackets along with analytical expressions for sums, containing products of two and three brackets, is given., Comment: 13 pages, accepted for publication in Nuclear Physics A

Published
2001
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11. ESUO - The European Synchrotron and FEL User Organisation: Aims and activities

Author

Arčon, I., Arikan, P., Bittencourt, C., Boscherini, F., Braz Fernandes, F. M., Brooks, N., Casu, B., D'Astuto, M., Feiters, M., Froideval, A., Granroth, S., Gross, S., Gutt, C., Hase, T., Jablonska, K., Jergel, M., Khan, A., Kirm, M., Kokkinidis, M., Kövér, L., Lamba, D., Larsen, H. B., Lechner, R. T., Le Hir, R., Logan, D. T., López, O., Lorentz, K., Mariani, C., Marinkovic, B., Mcguinness, C., Meedom Nielsen, M., Micetic, M., Mickevicius, S., Mikulík, P., Petukhov, A., Pietsch, U., Pokroy, B., Purans, J., Renault, L., Santoro, G., Shivachev, B., Stangl, J., Tromp, M., Vankó, G., Blasetti, C., Freire Anselmo, A. S., Grobosch, M., Helm, M., Schramm, B., Vollmer, A., Arčon, I., Arikan, P., Bittencourt, C., Boscherini, F., Braz Fernandes, F. M., Brooks, N., Casu, B., D'Astuto, M., Feiters, M., Froideval, A., Granroth, S., Gross, S., Gutt, C., Hase, T., Jablonska, K., Jergel, M., Khan, A., Kirm, M., Kokkinidis, M., Kövér, L., Lamba, D., Larsen, H. B., Lechner, R. T., Le Hir, R., Logan, D. T., López, O., Lorentz, K., Mariani, C., Marinkovic, B., Mcguinness, C., Meedom Nielsen, M., Micetic, M., Mickevicius, S., Mikulík, P., Petukhov, A., Pietsch, U., Pokroy, B., Purans, J., Renault, L., Santoro, G., Shivachev, B., Stangl, J., Tromp, M., Vankó, G., Blasetti, C., Freire Anselmo, A. S., Grobosch, M., Helm, M., Schramm, B., and Vollmer, A.

Abstract

The European Synchrotron and free-electron laser User Organisation (ESUO) established in 2010 represents about 22.000 users. It is composed of 30 member countries. Our vision is to support a thriving (European) synchrotron and FEL user community with equal opportunities of access and participation for all scientists, based solely on the scientific merit of their ideas.

Published
2019

12. ESUO - The European Synchrotron and FEL User Organisation

Author

Arčon, I., Arikan, P., Bittencourt, C., Boscherini, F., Braz Fernandes, F. M., Brooks, N., Casu, B., D'Astuto, M., Feiters, M., Froideval, A., Granroth, S., Gross, S., Gutt, C., Hase, T., Jablonska, K., Jergel, M., Khan, A., Kirm, M., Kokkinidis, M., Kövér, L., Lamba, D., Larsen, H. B., Lechner, R. T., Le Hir, R., Logan, D., López, O., Lorentz, K., Mariani, C., Marinkovic, B., Mcguinness, C., Meedom Nielsen, M., Micetic, M., Mickevicius, S., Mikulík, P., Petukhov, A., Pietsch, U., Pokroy, B., Purans, J., Renault, L., Santoro, G., Shivachev, B., Stangl, J., Tromp, M., Vankó, G., Freire Anselmo, A. S., Blasetti, C., Grobosch, M., Helm, M., Schramm, B., Vollmer, A., Arčon, I., Arikan, P., Bittencourt, C., Boscherini, F., Braz Fernandes, F. M., Brooks, N., Casu, B., D'Astuto, M., Feiters, M., Froideval, A., Granroth, S., Gross, S., Gutt, C., Hase, T., Jablonska, K., Jergel, M., Khan, A., Kirm, M., Kokkinidis, M., Kövér, L., Lamba, D., Larsen, H. B., Lechner, R. T., Le Hir, R., Logan, D., López, O., Lorentz, K., Mariani, C., Marinkovic, B., Mcguinness, C., Meedom Nielsen, M., Micetic, M., Mickevicius, S., Mikulík, P., Petukhov, A., Pietsch, U., Pokroy, B., Purans, J., Renault, L., Santoro, G., Shivachev, B., Stangl, J., Tromp, M., Vankó, G., Freire Anselmo, A. S., Blasetti, C., Grobosch, M., Helm, M., Schramm, B., and Vollmer, A.

Abstract

The European Synchrotron and free-electron laser User Organisation (ESUO) established in 2010 represents about 22.000 users. It is composed of 30 member countries. Our vision is to support a thriving (European) synchrotron and FEL user community with equal opportunities of access and participation for all scientists, based solely on the scientific merit of their ideas.

Published
2019

13. The activities of the European Synchrotron and FEL User Organisation for even brighter European Photon Science

Author

Pietsch, U., Arčon, I., Arikan, P., Bittencourt, C., Boscherini, F., Braz Fernandes, F. M., Brooks, N., Casu, B., D'Astuto, M., Feiters, M., Froideval, A., Granroth, S., Gross, S., Gutt, C., Hase, T., Jablonska, K., Jergel, M., Khan, A., Kirm, M., Kokkinidis, M., Kövér, L., Lamba, D., Larsen, H. B., Lechner, R. T., Le Hir, R., Logan, D. T., López, O., Lorentz, K., Mariani, C., Marinkovic, B., Mcguinness, C., Meedom Nielsen, M., Micetic, M., Mickevicius, S., Mikulík, P., Petukhov, A., Pokroy, B., Purans, J., Renault, L., Santoro, G., Shivachev, B., Stangl, J., Tromp, M., Vankó, G., Blasetti, C., Freire Anselmo, A. S., Grobosch, M., Helm, M., Schramm, B., Vollmer, A., Pietsch, U., Arčon, I., Arikan, P., Bittencourt, C., Boscherini, F., Braz Fernandes, F. M., Brooks, N., Casu, B., D'Astuto, M., Feiters, M., Froideval, A., Granroth, S., Gross, S., Gutt, C., Hase, T., Jablonska, K., Jergel, M., Khan, A., Kirm, M., Kokkinidis, M., Kövér, L., Lamba, D., Larsen, H. B., Lechner, R. T., Le Hir, R., Logan, D. T., López, O., Lorentz, K., Mariani, C., Marinkovic, B., Mcguinness, C., Meedom Nielsen, M., Micetic, M., Mickevicius, S., Mikulík, P., Petukhov, A., Pokroy, B., Purans, J., Renault, L., Santoro, G., Shivachev, B., Stangl, J., Tromp, M., Vankó, G., Blasetti, C., Freire Anselmo, A. S., Grobosch, M., Helm, M., Schramm, B., and Vollmer, A.

Abstract

The European Synchrotron and FEL User Organisation (ESUO) represents about 22 000 users of the European synchrotron radiation (SR) and Free-Electron Laser (FEL) facilities, which offer various kinds of experiments ranging from physics over life sciences up to cultural heritage. Established in 2010, ESUO is composed of national delegates from 30 European member states and associated countries and is headed by an executive board of eight members. Our vision is to support a thriving (European) synchrotron and FEL user community with equal opportunities of access and participation for all scientists, based solely on the scientific merit of their ideas.

Published
2019

25. Implementation trajectories of environmental education for sustainable development in formal, non-formal and informal education based on eduScrum project management methodology.

Author

Redina, M., Ledashcheva, T., Nikol'skii, A., Chernykh, N., Nesterov, E., Khaustov, A., Lamarton, S., Myaskov, A., Bica, I., Stom, D., Mickevicius, S., Lebedev, K., Jashchenko, R., Cherchesova, S., Jang, Y., Li, X., Ryazanova, Natalya, Naumov, Vladimir, and Kamennykh, Natalia

Published
2020
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29. Environmentally-induced alternative oncogenesis: EROS arrows.

Author

Redina, M., Ledashcheva, T., Nikol'skii, A., Chernykh, N., Nesterov, E., Khaustov, A., Lamarton, S., Myaskov, A., Bica, I., Stom, D., Mickevicius, S., Lebedev, K., Jashchenko, R., Cherchesova, S., Jang, Y., Li, X., Pinaev, Sergey K., Pinaeva, Olga G., and Chizhov, Alexey Ya.

Published
2020
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32. About the role of environmental factors in carcinogenesis.

Author

Redina, M., Ledashcheva, T., Nikol'skii, A., Chernykh, N., Nesterov, E., Khaustov, A., Lamarton, S., Myaskov, A., Bica, I., Stom, D., Mickevicius, S., Lebedev, K., Jashchenko, R., Cherchesova, S., Jang, Y., Li, X., Pinaev, Sergey K., Pinaeva, Olga G., and Chizhov, Alexey Ya.

Published
2020
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