Results 21 to 30 of about 187,991 (285)

Electrodynamics of the equatorial F-region ionosphere during pre-sunrise period [PDF]

open access: yesAnnales Geophysicae, 2009
The electrodynamics of the pre-sunrise equatorial F-region is investigated using HF Doppler radar and digital ionosonde. The observations are limited to those days for which the radar probing frequency is below the foF2 value.
S. R. Prabhakaran Nayar   +8 more
doaj   +1 more source

A multi-optimization model for the design of hydrogen supply chains [PDF]

open access: yesE3S Web of Conferences, 2020
This paper presents a multi-objective optimization models which operating as time processes (2025-2035) for the design of hydrogen supply chain. The feasibility of the models are illustrated through a detail case study of Dalian, China.
Li Miao   +4 more
doaj   +1 more source

Detection of vortex tubes in solar granulation from observations with Sunrise [PDF]

open access: yes, 2010
We have investigated a time series of continuum intensity maps and corresponding Dopplergrams of granulation in a very quiet solar region at the disk center, recorded with the Imaging Magnetograph eXperiment (IMaX) on board the balloon-borne solar ...
Barthol, P.   +13 more
core   +1 more source

Spontaneous Coronary Artery Dissection (SCAD) in a Turner Syndrome Patient: The Abstract

open access: yesGraduate Medical Education Research Journal, 2022
Mentor: Jeffery Levisman Program: Cardiology Type: Case Report Background: Turner Syndrome (TS) is a rare genetic condition in females which causes numerous phenotypic cardiovascular manifestations.
Mina Bhatnagar   +3 more
doaj   +1 more source

Solar tracking control system Sun Chaser [PDF]

open access: yes, 1978
The solar tracking control system, Sun Chaser, a method of tracking the Sun in all types of weather conditions is described. The Sun Chaser follows the Sun from east to west in clear or cloudy weather, and resets itself to the east position after sundown
Scott, D. R., White, P. R.
core   +2 more sources

SCIENCE PREDICTION ON THE HADITH ABOUT THE SUN RISING FROM THE WEST

open access: yesAl-Hilal
There are a lot of holy texts in Islam, like Al-Qur'an and Hadith, discussing the Sun that will rise in the West. However, a study has yet to be conducted to explain this phenomenon from a scientific point of view.
Muhammad Fajri Kholili Zain   +1 more
doaj   +1 more source

Total endoscopic excision of branchial cyst in a child aged 3 years

open access: yesJournal of Pediatric Surgery Case Reports, 2017
This is the case report of a three-year-old female Arab child who presented with a neck swelling since one year of age. Physical examination was suggestive of a 6 × 4 cm swelling in the right lateral neck, which was dumbbell shaped, deep to ...
Ramakrishnapillai Padmakumar   +5 more
doaj   +1 more source

Detection and Monitoring of Small-Scale Diamond and Gold Mining Dredges Using Synthetic Aperture Radar on the Kadéï (Sangha) River, Central African Republic

open access: yesRemote Sensing, 2023
Diamond and gold mining has been practiced by artisanal miners in the Central African Republic (CAR) for decades. The recent introduction of riverine dredges indicates a transition from artisanal/manual digging and sorting techniques to small-scale ...
Marissa A. Alessi   +3 more
doaj   +1 more source

Sunrise in Gagliato

open access: yesCurrent Oncology, 2016
Sunrise in Gagliato, [...]
openaire   +2 more sources

On the evaluation of a certain class of Feynman diagrams in x-space: Sunrise-type topologies at any loop order

open access: yes, 2005
We review recently developed new powerful techniques to compute a class of Feynman diagrams at any loop order, known as sunrise-type diagrams. These sunrise-type topologies have many important applications in many different fields of physics and we ...
A.A. Pivovarov   +128 more
core   +1 more source

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