Results 81 to 90 of about 985,374 (254)

Photochemical effects of Mars‐like UV irradiation on carboxylic acids in carbonaceous chondrites and expectations for abiotic background organics on Mars

Meteoritics &Planetary Science, EarlyView.
Abstract In the search for life on Mars, understanding the origin of preserved organics is critical. Expected sources include exogenous delivery, endogenous synthesis, and potentially life. Environmental processing by ultraviolet (UV) irradiation can alter these organics, obscuring hallmarks of their origin. To deconvolve these effects, we conducted an
D. K. Buckner, J. C. Aponte, A. C. Schuerger, D. I. Foustoukos, F. Seguin, M. B. Wilhelm, G. Cooper, A. J. Williams   +7 more
wiley   +1 more source

High‐Dimensional Cumulative Sum Control Charts for Industrial Measurement Systems

Quality and Reliability Engineering International, Volume 42, Issue 7, Page 4342-4361, November 2026.
ABSTRACT High dimensional sensing in modern factories and energy assets produces thousands of correlated signals. Detecting small process shifts is challenging because many classical multivariate charts lose power or become unstable. We present two cumulative sum procedures for two sample monitoring that remain effective when the number of variables is
Osama Alhadi, Tahir Mahmood, Muhammad Riaz, Nasir Abbas   +3 more
wiley   +1 more source

X-ray quasi-periodic pulsations in solar flares as magnetohydrodynamic oscillations [PDF]

, 2005
We report the first observation at high spatial resolution of long-period quasi-periodic pulsations (QPP) of X-ray radiation during solar flares, made possible with the Reuven Ramaty High Energy Solar Spectroscopic Imager(RHESSI), supported by ...
Foullon, Claire, Fletcher, L. (Lyndsay), Fletcher, L., L. Fletcher, Verwichte, E. (Erwin), V. M. Nakariakov, Verwichte, E., Nakariakov, V.M., Foullon, C. (Claire), C. Foullon, E. Verwichte, Foullon, C., Nakariakov, V. M. (Valery M.)   +12 more
core   +1 more source

Distribution of low-power solar flares by brightness rise time

Solar-Terrestrial Physics, 2018
Using data from the international flare patrol for 1972–2010, we have formed an electronic database for more than 123 thousand solar flares. We determined the mean brightness rise time (flash phase) for flare area classes and importance. We show that the
Borovik A.V., Zhdanov A.A.
doaj   +1 more source

Decarbonization and the Rescaling of Water–Energy Bargaining: How Renewable Expansion Is Reshaping Iran–Iraq–Türkiye Transboundary Water Politics

World Water Policy, Volume 12, Issue 4, November 2026.
ABSTRACT This article examines how renewable‐energy expansion is changing water–energy bargaining among Iran, Iraq, and Türkiye in the Tigris–Euphrates basin. Much of the existing literature on transboundary water politics focuses on territorial control, upstream–downstream power asymmetries, legal rules, and hydro‐hegemony but gives less attention to ...
Umud Shokri
wiley   +1 more source

Mapping Oil Spills and Offshore Industrial Activities in the Northwest Atlantic for Marine Conservation and Management

Geoscience Data Journal, Volume 13, Issue 4, October 2026.
An integrated, high‐resolution map of cumulative anthropogenic pressures in the Northwest Atlantic, combining oil pollution, offshore infrastructure, vessel traffic and artificial light. This harmonized dataset supports reproducible assessments of cumulative risk and informs marine spatial planning, conservation and management across Canada's EEZ and ...
David Beauchesne, Kevin Cazelles, Stephanie Avery‐Gomm, April Hedd, Philippe Muise, Robert A. Ronconi, Katharine R. Studholme, Sarah N. P. Wong   +7 more
wiley   +1 more source

Patterns of X-Ray and γ-Ray Flares: From Blazar to Magnetar and Sun

The Astrophysical Journal
Using Gaussian process methods, we analyzed the light curves of three extreme solar X-ray flares observed by the RHESSI satellite. Their variability characteristics were then compared with those of HXMT-HE X-ray burst (XRB; in SGR 1935+2154) associated ...
Haiyun Zhang, Dahai Yan, Lijuan Dong, Ping Zhang, Ruijing Tang, Jianeng Zhou, Lian Tao, Li Zhang, Niansheng Tang   +8 more
doaj   +1 more source

Unmanned Aerial Systems for Corrosion Detection: Multi‐Sensor Technologies, Challenges, and Opportunities for Next‐Generation Inspection

Quality and Reliability Engineering International, Volume 42, Issue 6, Page 3565-3583, October 2026.
ABSTRACT Corrosion remains a critical threat to the integrity and service life of infrastructure in industries such as oil, gas, construction, renewable energy, and transportation. Traditional inspection methods, being labor‐intensive, hazardous, and often subjective, fall short in addressing modern inspection demands.
Alhossein Alharbi, Yunes Alqudsi, Alhasan Ali Alharbi, Mohammed Basheer Mohiuddin   +3 more
wiley   +1 more source

Solar Fuels Via Methane Valorization: Thermochemical Pathways, Unified Metrics, and Techno‐Economic Perspectives

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
A first‐of‐its‐kind review benchmarks three solar methane valorization pathways with unified performance metrics for clean fuel production. Meeting global climate targets and sustainable energy demands requires carbon‐neutral fuels and innovative conversion pathways.
Muhammad Abdulmoez, Amjad Othman, Majid Linjawi, Amro Al‐Qutub   +3 more
wiley   +1 more source

Fine structure events in microwave emission during solar minimum

Solar-Terrestrial Physics, 2019
The solar minimum is a period with a relatively smaller number of sunspots and solar eruptions, and has been less studied before. Since the radio signal rapidly responds to the change of solar plasma and magnetic field, we perform a comprehensive ...
Chengming Tan, Baolin Tan, Yihua Yan, Wei Wang, Linjie Chen, Fei Liu, Yujiang Dou   +6 more
doaj   +1 more source