Search results for "eclipse"

Critical proofreading of the book "Les derniers jours du siège d'Alésia"

2023

Was there a lunar eclipse that could have influenced the outcome of the Battle of Alesia? This is the argument developed in the book by Alain Deyber and David Romeuf, «Les Derniers Jours du Siège d'Alésia». Having verified the existence of an eclipse on the date given by the authors and based on the latest publications as well as on the scientific consensus, we conduct a critical study on the chronology of the siege and on the ethnological arguments, even ethno-astronomical of the authors.

Eclipse un Android Studio kvalitatīvs salīdzinājums Android lietotņu izstrādāšanai

2018

Bakalaura darbā ir izpētīta Android lietotņu izstrāde no kvalitatīvā viedokļa. Izmantojot autora izveidoto kvalitātes modeli integrētajai izstrādes videi, tiek salīdzinātas Android Studio un Eclipse, kas ir divas integrētās izstrādes vides, ko izmanto Android lietojumprogrammu izstrādē. Kaut gan Eclipse agrāk bija plašāk izmantojama, mūsdienās Android Studio ir daudz vairāk iespēju. Bakalaura darba ietvaros tiek aprakstīta Android platforma un tās attīstības vēsture. Praktiskajā daļā tiek izveidotas divas lietotnes – katra savā izstrādes vidē, lai salīdzinātu tās. Darbā tiek aprakstīti aspekti, kas ietekmē lietotnes, piemēram, ekrāna izmēri, atmiņa, utt. Darbā tiek apskatīti dažādie ekrāna …

The OpenUp Process

2014

The Open Unified Process (OpenUp) is an iterative design process that structures the project lifecycle into four phases: Inception, Elaboration, Construction, and Transition. It is part of the Eclipse Process Framework and embraces a pragmatic, agile philosophy that focuses on the collaborative nature of software development. It is a tools-agnostic, low-ceremony process that can be extended to address a broad variety of project types. The project lifecycle provides stakeholders and team members with visibility and decision points throughout the project and makes them able to manage their work through micro-increments.

Verification of a commercial implementation of the Macro-Monte-Carlo electron dose calculation algorithm using the virtual accelerator approach.

2009

Abstract In this work, the accuracy of the implementation of the Macro Monte Carlo electron dose calculation algorithm into the radiation therapy treatment planning system Eclipse is evaluated. This implementation – called eMC – uses a particle source based on the Rotterdam Initial Phase-Space model. A three-dimensional comparison of eMC calculated dose to dose distributions resulting from full treatment head simulations with the Monte Carlo code package EGSnrc is performed using the ‘virtual accelerator’ approach. Calculated dose distributions are compared for a homogeneous tissue equivalent phantom and a water phantom with air and bone inhomogeneities. The performance of the eMC algorithm…

Eclipsed X-ray flares in binary stars: geometrical constraints on the flare's location and size

2007

The observation of eclipses during X-rays flares taking place in active cool stars binaries allows us to calculate the position and size of the flares. This information cannot be derived by analyzing the decay of the flares, a frequently used approach in the literature that requires the assumption of a physical model. We make use of the eclipsing light curve to constrain the set of possible solutions, from the geometrical point of view, in two flares of Algol, and one flare in VW Cep. We make use of a technique developed with the system SV Cam (i~90 deg) and generalize it to binary systems with arbitrary inclination. The method simulates all possible geometrical situations that can produce …

Die totale Sonnenfinsternis vom 8./21. August 1914 im Baltikum mit populären Erläuterungen dieses Phänomens [Die totale Sonnenfinsternis...im Baltiku…

1914

Two atropisomers of tricarbonyl[η6-7-chloro-3-(3-chloro-2-methylphenyl)-2,4,8-trimethyl-1,2,3,4-tetrahydro-2,4-dibora-1,3-diazanaphthalene]chromium(0)

2001

The structures of two atropisomers of the title compound, [Cr(C16H18B2Cl2N2)(CO)3], are reported. For both compounds, the Cr(CO)3 moiety is bound to the C6 aromatic ring of the mol­ecule; the existence of atropisomers resulting from the non-equivalence of both faces of the C6 aromatic ring is a consequence of the 3-chloro-2-methylphenyl ring being nearly perpendicular to the mean plane of the 2,4-dibora-1,3-di­aza­naphthalene ring. The orientation of the Cr(CO)3 tripod relative to the C6 aromatic ring is such that it is nearly eclipsed in one isomer (2.4° rotation from being eclipsed with C—N, C—Cl and C—H) and slightly twisted (16.2°) from an eclipsed conformation in the other.

Seamless integration of MetaEdit+ and eclipse to combine modeling and coding

2012

Tool integration tries to help users by automating processes in software development. In literature integration is mostly shown from technical point of view leaving user related issues outside. In this paper tool integration is looked also from the perspective of software engineering process and the user involved in the process. Another aspect will be integrating design models and code. A case of tool integration will be presented. The first tool is MetaEdit+ which is a Domain-Specific Modeling environment. The other tool is Eclipse which is used for traditional software engineering. The integration aims to combine the modeling and coding activities which together support metamodelers and m…

The Crystal Structure of the THF Adduct of Monolithioferrocene

2015

Single crystals of [Fe(η5-C5H4)(η5-C5H5)]2Li2(thf)4 (1) were obtained from a tetrahydrofuran solution containing monolithioferrocene. The title compound crystallizes in the monoclinic space group P21 with a = 9.6589(5) A, b = 17.4285(9) A, c = 30.3116(15) A, β = 91.911(2)° and V = 5099.8(5) A3 with three independent molecules of 1. All individual molecules feature a non- symmetric almost planar Li2C2 four-membered ring with two shorter (2.118–2.215 A) and two longer Li–C distances (2.257–2.309 A). The lithium cations are each coordinated by two carbanionic atoms of two ferrocenyl substituents and two tetrahydrofuran molecules in a distorted tetrahedral fashion. All ferrocenyl moieties displ…

Accurate Period Determination of an Eclipsing Binary X-Ray Source in M33

1993

We have analyzed the time variability of one of the X-ray sources in M33 observed by both the ROSAT and Einstein Observatory telescopes. The light curve of M33 X-7 exhibits a variability pattern of high and low states, suggesting an eclipsing binary X-ray source. The data suggest a binary period P=1.78572 days (very close to that of Her X-1) and an eclipse duration of ∼0.4 days. The low phase lasts about one-fourth of the period as in Cen X-3