Results 201 to 210 of about 235,371 (297)

Damage evolution and wellbore stability model of coal seams under the coupled effects of fluctuating pressure and hydration. [PDF]

Sci Rep
Zhai W, Fang C, Guo Q, Zhao Q, Yang Z, Wang Q, Zhang H, An J, Lv K.   +8 more
europepmc   +1 more source

Temperature‐Controlled Diene Cyclization Toward Trifluoromethyl Biphenyl Derivatives: Synthetic and Computational Study

ChemCatChem, Volume 18, Issue 18, 28 September 2026.
Synthesis of functionalized polyfluorinated biphenyl moieties via one‐pot Heck coupling followed by temperature‐controlled cyclization reaction of polyfluoro diene intermediate. The cyclization reaction proceeds via a palladium‐catalyzed β‐fluoro elimination step.
Bálint Varga, Khaled T. Jaradat, Martin Polyák, János Kele‐Jókuthy, Attila Herczegh, András Kotschy, Zoltán Novák, János Daru   +7 more
wiley   +1 more source

An equivalent circulating density prediction model for extended-reach horizontal wells considering drill strings sinusoidal buckling. [PDF]

Sci Rep
Huang Z, Li Y, Jiang K, Ge J, Gu Y, Hu Z.   +5 more
europepmc   +1 more source

Sedimentology and geochemistry of the recent sediments of the river system on Hurd Peninsula, Livingston Island, Antarctica

The Depositional Record, Volume 12, Issue 4, September 2026.
This study investigates the sedimentology and geochemistry of recent sediments from ephemeral river systems on Hurd Peninsula, Livingston Island, Antarctica. These systems are important for understanding sedimentary and geochemical processes in unique polar environments.
Yakup Çelik, Merve Özyurt, Raif Kandemir   +2 more
wiley   +1 more source

Analysis of performance and optimization of Iron Roughneck Tong Dies parameters. [PDF]

Sci Rep
Han D, Sha Y, Zhao X, Liu C, Yang K, Su B.   +5 more
europepmc   +1 more source

Temporal dynamics of insect herbivory in understory trees across temperate and tropical forests

Ecosphere, Volume 17, Issue 9, September 2026.
Abstract Insect herbivory shapes forest ecosystems by affecting plant growth, nutrient cycling, and regeneration. It is commonly believed that tropical forest understories face greater insect herbivory pressure than their temperate counterparts. Yet, the magnitude of this tropical–temperate contrast remains debated. To address this gap, we examined how
Heveakore Maraia, Jan Kollross, Tomokazu Abe, Sam Finnie, Inga Freiberga, Marketa Tahadlova, Jitka Jancuchova‐Laskova, Krystof Korejs, Vinod Kumar, Jan Lenc, Martin Libra, Craig McNamara, Ondřej Mottl, Masashi Murakami, Tatsuro Nakaji, Masahiro Nakamura, Jakub Pawlik, Leonardo Re Jorge, Legi Sam, Elise Sivault, Tereza Vlasata, Matthias Weiss, Xue Xiao, Katerina Sam   +23 more
wiley   +1 more source

Allograft Reconstruction Technique for Chronic Pectoralis Major Tears. [PDF]

JBJS Essent Surg Tech
Mora SA, Stokes D, Frank RM, Ahmed AF.
europepmc   +1 more source

Predicting drought‐induced tree mortality in Swiss beech forests hinges upon predisposing and inciting factors

Ecosphere, Volume 17, Issue 9, September 2026.
Abstract The recent increase in the frequency and severity of drought‐induced tree mortality events in low‐elevation, mesic European forests poses considerable challenges to forest management and requires an understanding of its causes. Here, we propose a novel, parsimonious framework for integrating the factors underlying drought‐induced tree ...
Gina Marano, Ulrike Hiltner, Katrin Meusburger, Thomas Oliver Hands, Harald Bugmann   +4 more
wiley   +1 more source

Deep drilling on Mars: pneumatic chip clearing model for the RedWater mining system. [PDF]

Space Planet Resour
Stolov L, Palmowski J, Zacny K, Yen B, Mellerowicz B, Mank Z, Sanasarian L, Schultz J.   +7 more
europepmc   +1 more source

Flow Characteristics and Response Surface Methodology‐Based Pressure‐Loss Prediction Models for the Reverse Circulation Converter in Double‐Wall Drill Pipes

Energy Science &Engineering, Volume 14, Issue 9, Page 4282-4299, September 2026.
Flow characteristics and pressure loss mechanisms of a reverse circulation converter in dual‐wall drill pipes are systematically investigated using CFD and response surface methodology. The results reveal the dominant role of inertial dissipation and provide a predictive framework for optimizing converter design and operational parameters. ABSTRACT The
Mingming Geng, Hui Zhang, Junpeng Li, Baokang Wu, Geng Zhang, Xinrui Wang, Jintao An, Long Chen, Yiming Ma   +8 more
wiley   +1 more source