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Obituary: Alexandra Diez de Oliveira
<p>Obituary for Alexandra Diez de Oliveira (1965-2023).</p>
Rare Important Astronomical Events during the Isia Feast correlated to the Starting Date of the Antikythēra Mechanism, The Helleno–Roman Isis and her Relation to Solar Eclipses
<p>The initial pointers’ position of the Antikythēra Mechanism (calibration) was based on a specific date, related to a unique coincidence of very important astronomical and religious events. During 22/23 December 178 BC (= 17/18 Hathyr) the four Lunar Cycles were at their beginning position, the Moon and the Sun crossed the zodiac sign of Capricorn signifying the Winter Solstice, the annular solar eclipse with the largest duration occurred and the Isia feast started. The Isia feast is related to the myth of Osiris’s death and its return to life via the help of Isis. In the Helleno–Roman Era, this myth is engaged to the Moon and the Sun. A further analysis of the eclipses’ probability of observation/visibility in the vicinity of Egypt and Middle East, explains why these areas exhibit a high probability for the solar eclipses’ visibility, detectability and therefore, their recording. This advantage led to the development of the ancient Babylonian Solar Astronomy and the Saros Period discovery. The missing Sun and the solar corona appearance during a total solar eclipse could be adopted and worshipped as deities by the authorities and priesthoods at these areas, creating magnificent religious stories and symbols. </p>
Survivability as an Organizational Goal
<p>This paper explores why survivability is an appropriate normative goal for organizations.</p>
Book Review: The Ancient Egyptian Kyphi and the Orthodox Holy Chrism: New Perspectives of Research
<p>Book Review: Maravelia, Alicia, Faviou, Elsa & Filianos, Markos: The Ancient Egyptian Kyphi and the Orthodox Holy Chrism: New Perspectives of Research, Athens (Hellenic Institute of Egyptology / Occasional Publications – 4) 2023, 60 + xviii pages, ISSN 2241–0597.</p>
Analytical model for computationally efficient prediction of plain weave fabric composite shear moduli and strengths
<p>This model is based on the minimum total complementary potential energy principle for a micromechanical unit cell of a plain weave fabric composite to predict both shear modulus and strength. The new model is validated with the experimental data from seven cases based on four different types of materials. The result is a mean prediction error of 15.24% in shear modulus and a mean error of 8.51% in shear strength predictions when compared to the experiments from the literature and with better predictions for carbon weave fabrics than the current literature. The new model also shows better robustness over the range of materials with a prediction error standard deviation of 4.10 over the seven cases.</p>
sandTES Engineering Manual Software
Software repository for the sandTES Engineering Manual.If you use this software, please cite it using the metadata from this file
Calibration of material models applied to impact mechanics using a new statistical approach.
Calibration of material models applied to impact mechanics using a new statistical approach. Congresso de Metodos Numericos em Engenharia. 1-3 July 2019. Guimaraes, Portuga
Book Review: The Red Monastery Church: Beauty and Asceticism in Upper Egypt
<p>Book Review: Bolman, Elizabeth S.: The Red Monastery Church: Beauty and Asceticism in Upper Egypt, New Haven and London (Yale University Press) 2016, 390 + xxxix pages, ISBN 978–0–3002–1230–3.</p>