نتایج جستجو برای: sun pathdiagram

تعداد نتایج: 34550  

2017
Xiaoyuan Wang Haiying Lv Qiang Sun Peng Gao

Xiaoyuan Wang 1, Haiying Lv 1, Qiang Sun 2,*, Yanqing Mi 1 and Peng Gao 1,* 1 Institute of Electrical Engineering & Automation, Tianjin University, No. 92 Weijin Road, Tianjin 300072, China; [email protected] (X.W.); [email protected] (H.L.); [email protected] (Y.M.) 2 College of Engineering and Technology, Tianjin Agricultural University, Tianjin 300384, China * Correspondence: ...

2003
J. A. Grifols

Lepton number charges might be the source of long range forces. If one accepts that neutrinos produced in the Sun do indeed oscillate while crossing the interior of the Sun, then the shift in the phase of the neutrino wavefunction caused by an hypothetical potential associated to the leptonic charge of the electrons in the Sun could affect the oscillation pattern beyond what is actually observe...

Journal: :هنرهای تجسمی 0
حمید بهداد دانشجوی کارشناسی ارشد نقاشی، دانشگاه آزاد اسلامی، یزد، ایران بهنام جلالی جعفری عضو هیئت علمی دانشکده هنر و معماری، دانشگاه علم و فرهنگ، تهران

abstract sun was always in special place among iran and world myths that can be know as the eldest station for worshiping sun, cross or swastika is the most common face which has been turned to capital for the craftsmen and artists of the various eras in order to decorate handicrafts beside other various images of sun.  this   epidiascope is one of the eldest ancient epidiascope and it can be s...

Journal: :iranian journal of astronomy and astrophysics 2014
nasibe alipour hossein safari

solar mini-dimmings can be detect in the extreme ultra-violet coronal eruptions. here, sequences of 171_a images taken by solar dynamic observatory/atmospheric imaging assembaly on 13 june 2010 are used. in this special day, both of coronal mass ejection and prominence were observed. the average velocities and accelerations of 500 mini-dimmings which were detected using on feature based classif...

In the present work, we introduce and explain a method of solution of the radiative transfer equation based on a thin cloud model. The efficiency of this method to retrieve dynamical chromospheric parameters from Stokes I profiles of Ca II 854.2 nm line showing spectral emission is investigated. The analyzed data were recorded with the Crisp Imaging Spectro-Polarimeter (CRISP) at Swedish 1-m So...

2001
SHULEI SUN Shulei Sun Donald Nute Charles Cross Eileen Kraemer Gordhan L. Patel Eileen T. Kraemer

This thesis describes the development of a knowledge-based system to evaluate forested land for availability of wildlife habitat. NED is an acronym derived from “Northeast Decision Model”. The NED DSS, a collection of software products, was created to help resource managers to build up goals, access current and potential conditions, and create long-term, landscape-level management plans for for...

Journal: :تاریخ علم 0
امیرمحمد گمینی پژوهشکدۀ تاریخ علم

in extant islamic manuscripts we can find some observation reports of a black dot on the surface of the sun. these reports add that this dot should be the planet venus or mercury, transiting over the sun, showing that both of them are below the sphere of the sun. the research made so far on ibn sina’s report shows that it might relate to a really observed venus transit. quṭb al-dīn al-shīrāzī (...

2017
Caradee Y Wright Tarylee Reddy Angela Mathee Renée A Street

Informal workers in African market trade have little formal protection against sun exposure. We aimed to examine sun exposure, sun-related symptoms, and sun protection practices in an informal occupational setting. Trained fieldworkers asked 236 workers in the Warwick Junction market about their workplace, skin and eye sensitivity and skin colour, symptoms faced at work during the summer due to...

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