Results 41 to 50 of about 251 (167)

Reaction Rate Coefficients and Adduct Formation in the Cl Atom + (E)‐CF3CF2CH=CHCF2CF3 Reaction

International Journal of Chemical Kinetics, Volume 58, Issue 10, Page 871-880, October 2026.
ABSTRACT In this work, rate coefficients for the Cl‐atom + (E)‐CF3CF2CH═CHCF2CF3 (HFO‐153‐10mczz, F22E) gas‐phase reaction were measured as a function of temperature and pressure, k(243–323 K, 50–300 Torr), using a pulsed laser photolysis‐resonance fluorescence (PLP‐RF) technique.
Maria‐Areti I. Spanoudaki, Daniel Van Hoomissen, Vassileios C. Papadimitriou, James B. Burkholder   +3 more
wiley   +1 more source

A Machine Learning‐Based Model of Three‐Dimensional Ion Fluxes in the High‐Altitude Earth's Northern Cusp

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Magnetic reconnection at the dayside magnetopause is the primary pathway for transferring mass, momentum, and energy from the solar wind into the terrestrial magnetosphere. Previous studies have shown that the spatiotemporal dynamics of dayside magnetic reconnection can be inferred remotely from properties of Earth's cusps, specifically their ...
Gonzalo Cucho‐Padin, David Sibeck, Xueyi Wang, Daniel da Silva, Xiaolei Li, Gowtan Valluri, Cristian Ferradas, Hyunju Connor, Yu Lin   +8 more
wiley   +1 more source

A comparative analysis of two Early Palaeozoic marine impact structures in Estonia, Baltic Sea: Neugrund and Kärdla [PDF]

Bulletin of the Geological Society of Finland, 2013
Kärdla and Neugrund are two Early Palaeozoic offshore impact structures located some 50 km apart along the Estonian coast of the Baltic Sea. They share many similarities but differing features are also found. The Kärdla impact structure is located at the
S. Suuroja, K. Suuroja, T. Flodén
doaj   +1 more source

On the Source of the Erratic Boulders in the Valley of River Calder, in Yorkshire [PDF]

Proceedings of the Yorkshire Geological Society, 1879
Four years ago I had the pleasure of reading a paper before this Society on the Erratic Boulders in the Valley of the Calder. Since then, extended observations have led to a confirmation of the views I then laid before the Society. The result of those observations forms the subject of this communication.
openaire   +2 more sources

Invasive mammals disrupt sea–land nutrient inputs over 169 years on subtropical oceanic islands

Ecosphere, Volume 17, Issue 9, September 2026.
Abstract Invasive mammals have severely impacted oceanic islands, reducing or extirpating seabird populations and driving the collapse of nutrient flows with lasting ecosystem effects. We investigated these dynamics on contrasting subtropical oceanic islands in the South Pacific: Rangitāhua, a large island where goats, cats, and rats caused the ...
M. J. Rayner, M. F. de A. Klemm, W. A. Nelson, S. J. Bury, D. J. Hawke, M. A. Sewell, C. J. West, K. E. Morman, L. A. Walker, K. Neill, J. D. Aguirre, Y. Baba, J. R. Beggs, C. A. J. Duffy, J. Galbraith, C. P. Gaskin, T. Hvid, M. Kirk, L. Liggins, E. I. McGuigan, K. Walton, T. Trnski, E. A. Whitehead, P. J. Bellingham   +23 more
wiley   +1 more source

Geophysical Surveys and LiDAR Topographic Analysis of the Vallum and Its Wider Landscape at Milking Gap, Hadrian's Wall

Geoarchaeology, Volume 41, Issue 5, September/October 2026.
ABSTRACT We present the results of geophysical surveys and LiDAR analysis of the Vallum and wider landscape at Milking Gap, on Hadrian's Wall. Magnetic gradiometry and Electrical Resistivity Tomography (ERT) surveys were utilised to investigate the landscape context of the Vallum and provide insight into the stratigraphy of the preserved earthworks ...
Sam Bithell, Stefan Nielsen, Richard Hingley   +2 more
wiley   +1 more source

Narratives of ‘home landscapes’ guide stewardship practices among Swedish forest owners

People and Nature, Volume 8, Issue 9, Page 2968-2985, September 2026.
Abstract Production forests play an important role in addressing many of our current sustainability challenges. Therefore, how these forests are managed and what motivates the people who are managing them are important for sustainability. 47 per cent of forests in Europe are privately owned.
Katja Malmborg, Johan Enqvist, Erik Andersson, Lisen Schultz   +3 more
wiley   +1 more source

Stretched exponential relaxation of viscous remanence and magnetic dating of erratic boulders [PDF]

Journal of Geophysical Research: Solid Earth, 2016
AbstractViscous remanence continuously increases with the duration of reorientation of rocks, and the remanence gets partially overprinted in rocks parallel to the Earth's magnetic field. This overprinted viscous remanence is unblocked at a certain temperature that enables the estimation of the time required for the rock to acquire the magnetism, by ...
T. Sato, N. Nakamura, H. Nagahama, K. Minoura   +3 more
openaire   +1 more source

An Index to Characterize the South Indian Ocean High‐Pressure System and Its Variability

Atmospheric Science Letters, Volume 27, Issue 8, August 2026.
The South Indian Ocean subtropical high steers rainfall and drought across southern Africa, Australia, and the surrounding islands, yet it lacked a consistent measure of its behavior. Using an index built from 84 years of atmospheric pressure data, this study shows the high alternates between two distinct states, a strong southeastern position and a ...
Kwesi Akumenyi Quagraine, Kwesi Twentwewa Quagraine, Francis Nkrumah, Bruce Hewitson, Mark Tadross, Nana Ama Browne Klutse   +5 more
wiley   +1 more source

Shield Equipment Optimization and Construction Control Technology in Water-Rich and Sandy Cobble Stratum: A Case Study of the First Yellow River Metro Tunnel Undercrossing

Advances in Civil Engineering, 2019
The Lanzhou Yellow River Tunnel is the first metro shield tunnel that undercrosses the Yellow River in China. It was completed after successfully overcoming several construction challenges, including strata with a high proportion of large-sized sandy ...
Fei Ye, Nan Qin, Xiang Gao, Xue-yong Quan, Xian-zhuo Qin, Bing Dai   +5 more
doaj   +1 more source