Showing papers by "Laura Monica Gorghiu published in 2010"
TL;DR: An analysis of the impact produced by the implementation of new virtual experiments designed by 146 teachers who participated to a 40 hours training modules “Virtual Instrumentation in Science Education” organized in the frame of Socrates-Comenius 2.1.
11 citations
TL;DR: The paper aims to identify if web conferencing can be successfully used for educational projects outcomes dissemination and what are the factors that may lead to its success or its failure.
7 citations
TL;DR: In this article, the authors present a web educational video-clips exhibition, composed by 50 representative video-experiments related to the implementation of the virtual experiments in Sciences education, as this was done in the frame of the Socrates-Comenius 2.1 European project: VccSSe - Virtual Community Collaborating Space for Science Education.
4 citations
01 Jan 2010
TL;DR: This paper presents a meta-analyses of the X-ray diffraction-gauging technique and its Applications in Dental Medicine and Radiological Processing.
Abstract: MARIA MARIS1, DAN A. MARIS1, SILVIU JIPA2,3*, TRAIAN ZAHARESCU3, LAURA MONICA GORGHIU2 1„Ovidius” University of Constanþa, Faculty of Dental Medicine, 7 Ilarie Horonca Str., 900684, Constanta, Romania 2 Valahia University of Targoviste, Faculty of Sciences and Arts, 18-24 Unirii Av., 130082, Targoviste, România 3 INCDIE ICPE CA, Department of Radiation Processing, 313 Splaiul Unirii, 030138, Bucharest, România
3 citations
TL;DR: The purpose of the paper is to identify and assess the potential vulnerabilities and threats, by analyzing the use of ICT in multinational educational projects, during the activities that took place in two Socrates-Comenius 2.1.
2 citations
01 Oct 2010
TL;DR: In this article, the same glow curve structure with three prominent peaks located at 100, 180 and 280C at a heating rate of 5C/s was obtained for two batches of fluorite from Romania.
Abstract: . Thermoluminescent dosimetric features of two batches of fluorite from Romania (Cavnic and Tulcea) are presented. An initial thermal treatment at 600C for 60 min. to cleaning of natural dose has been performed. All samples showed the same glow curve structure with three prominent peaks located at 100, 180 and 280C at a heating rate of 5C/s. An attempt was made to determine the kinetic parameters of TL glow curve. The activation energy E ~ 1.31 eV (Tulcea batch) of the dosimetric peak and the kinetic order b=2 were obtained. The dose response of CaF2:nat from Tulcea to gamma-rays is linear in the range 2 Gy to 5·10Gy, where saturation effects became pronounced. A thermal fading of 18% during 30 days was observed.
2 citations
01 Jan 2010
TL;DR: In this paper, the influence of rare earths (La, Ce, Nd, Sm, Eu, Gd, Dy, Ho and Yb) as dopants was investigated.
Abstract: Potassium tetraborate was synthesized by high-temperature solid state reaction. The influence of rare earths (La, Ce, Nd, Sm, Eu, Gd, Dy, Ho and Yb) as dopants was investigated. Relative thermoluminescence (TL) efficiency for the K 2 B 4 O 7 activation is given. The TL kinetic parameters were evaluated by employing the peak shape method and the results suggest that activated tetraborate systems obey the intermediate order kinetic (1 < b < 2). An attempt was made to explain the thermo-luminescence mechanism according to frequency factor magnitude. The TL dose response is linear ranging from 3 Gy to 6 kGy and there is no indication on response saturation.