Results 171 to 180 of about 212,947 (357)

The effects of single versus successive warm summers on an intertidal community

Oikos, EarlyView.
To accurately predict how organisms and ecological communities will respond to future conditions caused by climate change, we must consider the temporal dynamics of environmental stressors, including the effects of repeated exposures to stress. We performed a two‐year passive thermal manipulation in coastal British Columbia, Canada to determine how ...
Amelia V. Hesketh, Cassandra A. Konecny, Sandra M. Emry, Christopher D. G. Harley   +3 more
wiley   +1 more source

Synthetic capillary pressure modeling with dipole sonic waves for enhanced reservoir characterization. [PDF]

Sci Rep
Galarza-Alava J, Mendoza-Sanz J.
europepmc   +1 more source

Experimental Investigation of Moisture Movement During Freeze–Thaw Cycles and Its Effect on Physical Rock Weathering in Low‐Porosity Alpine Limestone

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The progressive weakening of alpine rockwalls through subcritical cracking, driven by repeated low‐magnitude stress processes, plays a key role in alpine rock weathering. Laboratory studies using acoustic emission (AE) monitoring have shown that thermal stresses from freeze–thaw cycling induce crack propagation, with recent work highlighting ...
Andrew Mitchell, Oliver Sass
wiley   +1 more source

Predicting drainage capillary pressure curves in natural porous media by NMR-T₂ relaxometry: implications for CO₂ storage. [PDF]

Sci Rep
Markovic S, Kurochkin A, Efara M, Ahmed S, Al-Shalabi EW, AlAmeri W.   +5 more
europepmc   +1 more source

Deciphering Freeze–Thaw Dynamics In Rockwalls: A Novel Approach for High Accuracy Regional‐Scale Modeling

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Using a large and novel array of instruments on five rockwalls in northern Gaspesia, their respective surface energy balances were calculated and their thermal regimes were measured and modeled to depths exceeding the seasonal frost penetration.
Tom Birien, Francis Gauthier
wiley   +1 more source

Study on the mechanical and fracturing characteristics of parallel slit groove sandstone at different angles under cyclic loading and unloading. [PDF]

Sci Rep
Enbing Y.
europepmc   +1 more source

Critical Review of Brazil Disk Techniques for Tensile Strength Characterization With an Emphasis on High Explosive Materials

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Mechanical properties are a critical performance metric for many high explosive (HE) materials and tensile strength properties are particularly important. Direct tensile measurements using dogbone shaped samples are the gold standard but they have the disadvantage that they are fairly large and require samples machined from billets.
Paul B. Mirkarimi
wiley   +1 more source

Study on characterization of sandstone pore structure and seepage mechanism based on NMR and CT technology. [PDF]

PLoS One
Zhao S, Liu K, Sun C, Yue W, Wang Q, Xia Y, Wang X.   +6 more
europepmc   +1 more source

Spatiotemporal Assessment of Groundwater Interactions With a Regulated River: A Case Study of the Nechako River, Canada

River Research and Applications, EarlyView.
ABSTRACT Regulated rivers represent complex hydrological systems where groundwater–surface water interactions are governed by natural conditions and human interventions. This study investigates the spatiotemporal dynamics of groundwater–surface water exchanges in the Nechako River, British Columbia (Canada), using numerical simulations.
Milad Fakhari, John Gray, Avery Dextrase, Andre St‐Hilaire, Richard Martel   +4 more
wiley   +1 more source

A highly diverse Pennsylvanian tetrapod ichnoassemblage from the Semily Formation (Krkonoše Piedmont Basin, Czechia). [PDF]

PeerJ
Calábková G, Březina J, Nádaskay R.
europepmc   +1 more source