Results 51 to 60 of about 861 (180)
Improved Constraints on Andean Glaciations From the Lake Titicaca Continental Drilling Record
Paleoceanography 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
Dynamic Seal Test of Deepwater Drilling Riser Telescopic Joint
Shiyou jixie, 2018 According to the main function and working conditions of the deepwater drilling riser telescopic joint, the dynamic sealing test was conducted using the 1:3 drilling riser telescopic joint prototype.
Zhang Caiying +5 more
doaj
The Impact of Acquisition Intensity on ESG Performance
Business Strategy and the Environment, Volume 35, Issue 4, Page 4861-4875, May 2026.ABSTRACT This study investigates the impact of Acquisition Intensity on ESG performance using a panel of 1,736 US‐listed companies from 2002 to 2023. Employing a robust OLS framework, we assess both Value‐Based and Volume‐Based Acquisition Intensity against overall ESG scores and their environmental, social, and governance pillars, controlling for firm
Ugbede Amedu +2 more
wiley +1 more source
Element concentrations in tissues reveal spatial structure of Atlantic walrus management stocks
The Journal of Wildlife Management, Volume 90, Issue 4, May 2026.Differences in tissue element concentrations confirm geographic differentiation between 2 of Canada's walrus management stocks but reveal additional spatial structure within the largest stock that may have management implications. Abstract Ensuring harvested animal populations are managed at appropriate scales requires an understanding of underlying ...
Alexander M. Jardine +3 more
wiley +1 more source
Air Contamination and Mass Fractionation Correction in Groundwater From a Hydrocarbon System
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.Abstract Noble gases are valuable geochemical tracers for investigating subsurface fluid origins and migration because of their chemical inertness and source‐specific isotopic ratios. However, subsurface water samples often show noble gas patterns that differ from air‐saturated water references, with excesses or depletions that complicate ...
S. Diniz +5 more
wiley +1 more source
Development and Application of the Modularized Ground Test Equipment System for Deep Water Test
Shiyou jixie, 2016 The ground test processes of deepwater testing operation have the issues like high cost,large space needed on drilling platform,lowering the drilling efficiency.Through deepwater testing process modularization design and independent research and ...
Jin Shukai +5 more
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Animal Genetics, Volume 57, Issue 2, April 2026.ABSTRACT Assessing genetic structure across ocean basins is essential to understand connectivity and guide conservation in data‐deficient open‐water sharks. In this study, we examined the population genomics of Squalus cf. mitsukurii by analyzing tissue samples collected from two distant regions: California, USA (Pacific Ocean) and Pernambuco, Brazil ...
Aisni Mayumi Corrêa de Lima Adachi +11 more
wiley +1 more source
Location selection of deepwater relief wells in South China Sea
Petroleum Exploration and Development, 2016 By analyzing affecting factors on deepwater relief well location selection, and focusing on the regional deepwater operating environment in South China Sea and different rig positioning types, a calculation method for minimum safety distance between ...
Weiqing ZHAO +3 more
doaj +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.Abstract The late Eocene to early Oligocene is an intriguing Paleogene period in which the Earth climate state changed from Warmhouse to Coolhouse. Accurate age models are essential for investigating these climate transitions. The southwestern Pacific International Ocean Discovery Program (IODP) Site U1553, with its almost complete succession of the ...
Yang Zhang +5 more
wiley +1 more source
Analysis of Fatigue Monitoring of Deepwater Drilling Riser
Shiyou jixie, 2017 The riser is the key equipment for deepwater drilling, which is prone to fatigue damage in harsh deepwater environment, so it is very important to monitor the fatigue of deepwater riser.
Li Qingpei +5 more
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