Results 71 to 80 of about 57,483 (260)

A new mass-ratio for the X-ray Binary X2127+119 in M15?

open access: yes, 2004
The luminous low-mass X-ray binary X2127+119 in the core of the globular cluster M15 (NGC 7078), which has an orbital period of 17 hours, has long been assumed to contain a donor star evolving off the main sequence, with a mass of 0.8 solar masses (the ...
Bailyn   +25 more
core   +1 more source

Strategy for One‐Step Optimization of Metal Oxide Passivating Contact Materials for Si Heterojunction Solar Cells through Growth Angle Variation

open access: yesSmall, EarlyView.
A one‐step oblique angle reactive sputtering approach enables simultaneous tuning of bulk and interfacial stoichiometry in a metal oxide/ silicon heterojunction. In case of vanadium oxides, growth angle variation controls the formation of stoichiometric SiO2, ternary SiOx(V) interlayer, and phase purity of vanadium oxide, considerably simplifying the ...
Aparajita Mandal   +3 more
wiley   +1 more source

The solar eclipse and its relation with higree months

open access: yesIraqi Journal of Physics, 2019
The solar eclipse occurs at short time before the crescent birth moment when the moon near any one of moon orbit nodes It is important to determine the synchronic month which is used to find Higree date.
Abdul Rahman H. S.
doaj   +1 more source

The application of a Trous wave filtering and Monte Carlo analysis on SECIS 2001 solar eclipse observations

open access: yes, 2005
8000 images of the Solar corona were captured during the June 2001 total Solar eclipse. New software for the alignment of the images and an automated technique for detecting intensity oscillations using multi scale wavelet analysis were developed.
A. C. Katsiyannis   +16 more
core   +1 more source

Temporal Responses to Warming: Do Wild Herbivores Trade Off Heat, Predators, and Humans?

open access: yesIntegrative Zoology, EarlyView.
We untangled how summer temperature, predators, and humans influenced behavioral responses in two deer species. Both reduced their daily activity level in response to warming, yet only roe deer increased nocturnality to avoid heat. Conversely, fallow deer traded off heat avoidance with predator avoidance.
Noemi Pallari   +6 more
wiley   +1 more source

Multi-instrument observations of the solar eclipse on 20 March 2015 and its effects on the ionosphere over Belgium and Europe

open access: yesJournal of Space Weather and Space Climate, 2017
A total solar eclipse occurred on 20 March 2015, with a totality path passing mostly above the North Atlantic Ocean, which resulted in a partial solar eclipse over Belgium and large parts of Europe.
Stankov Stanimir M.   +21 more
doaj   +1 more source

Structure in the Disk of epsilon Aurigae: Analysis of the ARCES and TripleSpec data obtained during the 2010 eclipse

open access: yes, 2018
Context: Worldwide interest in the recent eclipse of epsilon Aurigae resulted in the generation of several extensive data sets, including those related to high resolution spectroscopic monitoring.
Barentine, John   +6 more
core   +1 more source

Corporate Sponsoring of the Council Presidency: A Research Agenda

open access: yesJCMS: Journal of Common Market Studies, EarlyView.
Abstract Member states holding the Council Presidency routinely seek corporate sponsors. Typically, these sponsors offer free or discounted goods and services, such as food, beverages, cell phones, software or a car fleet in exchange for being labelled an official partner or sponsor of the Presidency.
Gijs Jan Brandsma, Reinout van der Veer
wiley   +1 more source

Spectral irradiance curve calculations for any type of solar eclipse [PDF]

open access: yes
A simple procedure is described for calculating the eclipse function (EF), alpha, and hence the spectral irradiance curve (SIC), (1-alpha), for any type of solar eclipse: namely, the occultation (partial/total) eclipse and the transit (partial/annular ...
Deepak, A., Merrill, J. E.
core   +1 more source

Measurement and modeling of diffuse ultraviolet radiation: A review

open access: yesPhotochemistry and Photobiology, EarlyView.
Solar UV radiation consists of direct and diffuse UV components. The diffuse component contributes to the exposure received by humans and to the risk of skin cancer and sun‐related eye disorders. This review aims to determine future research directions for the measurement and modeling of diffuse solar UV radiation.
Alfio V. Parisi   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy