Results 221 to 230 of about 5,004,714 (344)

Long‐Term Trends and Variability of Upwelling in the Southern South China Sea

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract Wind‐driven upwelling in the southern South China Sea (SSCS) is a crucial process in pumping nutrients and driving primary productivity. We analysed the long‐term trends of upwelling changes in the southern South China Sea, focusing on the East Coast of Peninsular Malaysia (ECPM) and northwest Sabah for the past decades (1982–2023) by using ...
M. N. Satar   +5 more
wiley   +1 more source

Existing state of art of free-piston engines.

open access: green, 2017
Veljo Raide   +4 more
openalex   +1 more source

Improved Constraints on Andean Glaciations From the Lake Titicaca Continental Drilling Record

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 6, June 2026.
Abstract Long sedimentary records from tropical lakes provide crucial archives for reconstructing the timing and extent of tropical alpine glaciations, yet robust chronologies beyond the radiocarbon limit (ca. 50 ka) remain scarce. Here, we refine the ca. 350 kyr chronology for Lake Titicaca (Peru‐Bolivia) using radiocarbon dating, optically stimulated
Victoria L. Todd   +7 more
wiley   +1 more source

Oil-free piston compressors

open access: yes, 2007
Owczarek, Pawel   +2 more
openaire   +1 more source

Silicon allotropes by large‐volume high‐pressure techniques: crystal growth mechanisms, phase diagrams and hexagonal nanostructured Si‐6H by in situ X‐ray diffraction and computational methods

open access: yesActa Crystallographica Section B, Volume 82, Issue 3, Page 280-298, June 2026.
In situ X‐ray diffraction is used for exploring Si crystallography and for studying phase‐transformation mechanisms in elemental Si and Na–Si systems. We present original results of hexagonal silicon, Si‐6H and a critical analysis of the past‐decade discoveries of silicon Si‐4H and Si24 using large‐volume high‐pressure techniques.Metastable allotropes ...
Alexandre Courac, Yann Le Godec
wiley   +1 more source

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