38 research outputs found
Database Version Management for Application Development in Eclipse
Tato práce se zabývá verzováním databáze při vývoji aplikací v Eclipse. V teoretické části jsou obsaženy informace o samotném prostředí aplikace Eclipse a také o rozšířujících modulech (pluginech), které jsou nedílnou součástí Eclipse. Dále je zde popis systémů pro správu verzí s podrobnějším zaměřením na systém Subversion a popis aplikačního rozhraní JDBC, které se používá pro připojení k databázi u Java aplikací. Další část práce se zabývá návrhem nástroje pro verzování databáze, který je implementován jako plugin pro Eclipse. V této části je popis implementace i instalace a použití tohoto nástroje. V závěru práce jsou popsány provedené testy a jejich výsledky.This thesis deals with database version control for application development in Eclipse. In the theoretical part, it provides information about the Eclipse environment and its extension modules (plugins) that are an inseparable part of Eclipse. There is also a description of version control systems with a detailed focus on the Subversion system and a description of the JDBC application interface that is used for connecting the database in Java applications. The next part deals with the design of a tool for database version control, which is implemented as a plugin for Eclipse. In this section, there is a description of the implementation and a description of the installation and use of this tool. In the final part, there is a description of the performed tests and their results.
Correlations of projectile like fragments in heavy ion reactions at Fermi energy
Correlations between pairs of projectile-like fragments, emitted by the
system at the laboratory bombarding energy of 515 MeV,
have been studied under two stipulated conditions: (1) at least one member of
the pair is emitted at an angle less than the grazing angle for the system, (2)
both the members of the pair are emitted at angles larger than the grazing
angle. A surprisingly large difference, by more than an order of magnitude, is
found between the correlations for the two cases. This observation could be
explained on the basis of a simple semi-classical break up model. Further
analysis of the variation of the charge correlation function with the
difference in the nuclear charges of the correlated pair showed trends which
are consistent with an "inelastic break up process", in which the projectile
breaks up at the radius of contact, in such a way that, one fragment
(preferably the lighter) is emitted to one side within the grazing angle, while
the other orbits around the target nucleus for a while and emerges on the other
side, at a negative scattering angle, much like in a deep inelastic scattering.Comment: 19 pages, 12 figures accepted by Eurp. Physics Journal
Maximal solution to the solar neutrino problem: just-so, MSW or energy independent?
We examine the maximal solution to the solar neutrino
problem. This solution can be motivated by the exact parity model and other
theories. The survival probability exhibits one of three qualitatively
different behaviours depending on the value of , viz. approximately
energy independent, just-so or MSW. By the last of these we mean an enhanced
night-time event rate due to regeneration in the Earth. We study all of these
possibilities in the context of the recent SuperKamiokande data.Comment: minor changes to text and fig.
The Implementation of ISMS in Small Company
Tato diplomová práce je zaměřena na návrh implementace systému řízení bezpečnosti informací (ISMS) do konkrétní společnosti. V teoretické části jsou uvedeny základní pojmy a také podrobný popis ISMS. Dále je zde popsána analýza současného stavu bezpečnosti informací v dané společnosti. V praktické částí práce je provedena analýza rizik a výběr opatření pro minimalizaci nalezených rizik. Na závěr je navržen postup a časový plán zavedení vybraných opatření.This master's thesis is focused on the design of the implementation of information security management system (ISMS) into a specific business. In the theoretical part, it provides basic concepts and detailed description of ISMS. There is also described the analysis of a current information security state of the company. In the practical part, it provides a risk analysis and selection of measures to minimize found risks. In the final part is designed a process and a schedule of an implementation of the selected measures.
Performance of the neutron polarimeter NPOL3 for high resolution measurements
We describe the neutron polarimeter NPOL3 for the measurement of polarization
transfer observables with a typical high resolution of 300 keV
at 200 MeV.
The NPOL3 system consists of three planes of neutron detectors.
The first two planes for neutron polarization analysis are made of 20 sets of
one-dimensional position-sensitive plastic scintillation counters with a size
of 100 cm 10 cm 5 cm, and they cover the area of 100
100 .
The last plane for detecting doubly scattered neutrons or recoiled protons is
made of the two-dimensional position-sensitive liquid scintillation counter
with a size of 100 cm 100 cm 10 cm.
The effective analyzing powers and double scattering
efficiencies were measured by using the three kinds
of polarized neutrons from the , , and reactions at = 198 MeV.
The performance of NPOL3 defined as
are similar to that of the
Indiana Neutron POLarimeter (INPOL) by taking into account for the counter
configuration difference between these two neutron polarimeters.Comment: 28 pages, 18 figures, submitted to Nucl. Instrum. Methods Phys. Res.
Gamow-Teller Strengths for Neutrino Detectors
This research was sponsored by the National Science Foundation Grant NSF PHY-931478
Renormalization of the weak hadronic current in the nuclear medium
The renormalization of the weak charge-changing hadronic current as a
function of the reaction energy release is studied at the nucleonic level. We
have calculated the average quenching factors for each type of current (vector,
axial vector and induced pseudoscalar). The obtained quenching in the axial
vector part is, at zero momentum transfer, 19% for the sd shell and 23% in the
fp shell. We have extended the calculations also to heavier systems such as
Ni and Sn, where we obtain stronger quenchings, 44% and 59%,
respectively. Gamow--Teller type transitions are discussed, along with the
higher order matrix elements. The quenching factors are constant up to roughly
60 MeV momentum transfer. Therefore the use of energy-independent quenching
factors in beta decay is justified. We also found that going beyond the zeroth
and first order operators (in inverse nucleon mass) does not give any
substantial contribution. The extracted renormalization to the ratio
at q=100 MeV is -3.5%, -7.1$%, -28.6%, and +8.7% for mass 16, 40, 56, and 100,
respectively.Comment: 28 pages, 6 figure
The Indiana University Neutron Polarization Facility (INPOL)
This research was sponsored by the National Science Foundation Grant NSF PHY-931478
LENDA, a Low Energy Neutron Detector Array for experiments with radioactive beams in inverse kinematics
The Low Energy Neutron Detector Array (LENDA) is a neutron time-of-flight
(TOF) spectrometer developed at the National Superconducting Cyclotron Lab-
oratory (NSCL) for use in inverse kinematics experiments with rare isotope
beams. Its design has been motivated by the need to study the spin-isospin
response of unstable nuclei using (p, n) charge-exchange reactions at
intermediate energies (> 100 MeV/u). It can be used, however, for any reaction
study that involves emission of low energy neutrons (150 keV - 10 MeV). The
array consists of 24 plastic scintillator bars and is capable of registering
the recoiling neutron energy and angle with high detection efficiency. The
neutron energy is determined by the time-of-flight technique, while the
position of interaction is deduced using the timing and energy information from
the two photomultipliers of each bar. A simple test setup utilizing radioactive
sources has been used to characterize the array. Results of test measurements
are compared with simulations. A neutron energy threshold of < 150 keV, an
intrinsic time (position) resolution of \sim 400 ps (\sim 6 cm) and an
efficiency > 20 % for neutrons below 4 MeV have been obtained.Comment: Version accepted for publication in Nucl. Instr. Methods A. Revised
text, 2 new figures added (one in section 4 and one in section 7
A Measurement of Gamow-Teller Strength for 176Yb -> 176Lu and the Efficiency of a Solar Neutrino Detector
We report a 0-degree 176Yb(p,n)176Lu measurement at IUCF where we used 120
and 160 MeV protons and the energy dependence method to determine GT matrix
elements relative to the Fermi matrix element which can be calculated model
independently. The data show that there is an isolated concentration of GT
strength in the low lying 1+ states making the proposed Low Energy Neutrino
Spectroscopy (LENS) detector (based on neutrino captures on 176Yb) sensitive to
7Be and pp neutrinos and a promising detector to resolve the solar neutrino
problem.Comment: 11 pages, LATEX, 4 eps figure