Ditemukan 55 dokumen yang sesuai dengan query
Alexander A. Ivanov, author
ABSTRAK
We discuss the side resonances of the optically detected magnetic resonance in a diamond crystal and propose a new approach to the calculation of the hyperfine interaction in a composed system consisting of a negatively charged nitrogen vacancy NV center and a nearby 13C nuclear spin. The energy levels, rule...
TASK, 2017
600 SBAG 21:2 (2017)
Artikel Jurnal Universitas Indonesia Library
Sergey Kshevetsky, author
ABSTRAK
In this paper we show a simple and effective method for regularizing the Coulomb potential for numerical calculations of quantum mechanical problems, such as, for example, the solution of the Schrodinger equation, the expansion of charge density and others. The introduction explains why the regularization of the Coulomb potential is...
TASK, 2017
600 SBAG 21:2 (2017)
Artikel Jurnal Universitas Indonesia Library
Stepan Botman, author
ABSTRAK
In this paper we present a numerical procedure for calculation of electrical conductivity in a periodic lattice of one dimensional zero range potentials with a case of dominant impurity scattering. The conductivity was previously obtained in an integral form via an approximate solution of the kinetic Kolmogorov equation. The proposed...
TASK, 2017
600 SBAG 21:2 (2017)
Artikel Jurnal Universitas Indonesia Library
Katarzyna Kaczorowska,author
The aim of this paper it to review various scale approaches to the blood flow modelling. Blood motion may be described by three types of mathematical models according to the observed scales or resolutions,namely microscopic,mesoscopic and macroscopic descriptions. The above approaches are discussed together with their advantages and disadvantages. Several...
TASK, 2017
600 SBAG 21:1 (2017)
Artikel Jurnal Universitas Indonesia Library
Pawel Syty, author
ABSTRAK
We present a software package JMATRIX1,consisting of two computer codes written in FORTRAN 95 and parallelized with OpenMP, implementing the so called J matrix method, applied to elastic scattering of electrons on the radial potential, vanishing faster than the Coulomb potential. In the J matrix method, the physical scattering problem...
TASK, 2017
600 SBAG 21:1 (2017)
Artikel Jurnal Universitas Indonesia Library
Slawomir Gulkowski, author
ABSTRAK
The electrical current voltage I until V characteristic a of photovoltaic PV module depends on the environmental conditions under which it operates. The shape of the I until V curve depends on the solar cell technology and changes dynamically in time with irradiance and temperature. A simulation model of the...
TASK, 2017
600 SBAG 21:1 (2017)
Artikel Jurnal Universitas Indonesia Library
Anna Perelomova, author
ABSTRAK
Variations in the thermodynamic state of a dispersive medium, caused by sound, are studied. A bubbly liquid and a Maxwell fluid are considered as examples. Curves in the plane of thermodynamic states are plotted. They are in fact pictorial images of linear relations of excess pressure and excess density in...
TASK, 2017
600 SBAG 21:1 (2017)
Artikel Jurnal Universitas Indonesia Library
Mykhailo Lytvyn, author
ABSTRAK
The sessile drop method was implemented to calculate the values of the surface tension coefficient of liquid metals. Appropriate software was developed to increase the data processing efficiency and the accuracy of the obtained results. This paper provides information on the structure and applications of the designed programs as well...
TASK, 2017
600 SBAG 21:1 (2017)
Artikel Jurnal Universitas Indonesia Library
Leonardo Pasini, author
ABSTRAK
The aim of this work is to define a procedure for the modelling of a computer network for the simulation of the network traffic induced by the execution of web applications. The work consists in describing the objects of a library defined for modelling both the hardware and the software...
TASK, 2017
600 SBAG 21:3 (2017)
Artikel Jurnal Universitas Indonesia Library
Tomasz Dziubich, author
ABSTRAK
In this paper, five contemporary scalable systems to support medical research teams are presented. Their functionalities extend from heterogeneous unstructured data acquisition through large scale data storing, to on the fly analyzing by using robust methods. Such kinds of systems can be useful in the development of new medical procedures...
TASK, 2017
600 SBAG 21:3 (2017)
Artikel Jurnal Universitas Indonesia Library
