Results 141 to 150 of about 6,936,990 (282)

Exponentially‐constrained Gaussian mixture model for quantifying vertical development of water‐conducting fracture zones in lithologically stratified mining roofs

Deep Underground Science and Engineering, EarlyView.
This study proposes an exponentially‐constrained Gaussian mixture model (EcGMM) to quantify vertical fracture heterogeneity in stratified roof strata. The model integrates a piecewise exponential decay term capturing global stress dissipation with Gaussian components representing localized fracture intensification at lithological interfaces.
Huiqing Yuan, Zhimin Xu, Weixiao Chen, Chenghang Zhang, Shijie Xiong, Yajun Sun   +5 more
wiley   +1 more source

Probabilistic characterization of seepage‐induced tunnel face failure via a two‐phase double‐point material point method

Deep Underground Science and Engineering, EarlyView.
To address seepage‐induced tunnel face collapse, this study develops a two‐phase double‐point MPM framework to capture large‐deformation hydro‐mechanical interactions. Incorporating a cementation‐based constitutive model with dynamic permeability updates, the model is successfully validated against saturated granular‐column collapse experiments ...
Yue Tong, Mingliang Zhou, Jie Xu, Zeyu Li, Yisheng Zhao, Jin An, Hongwei Huang   +6 more
wiley   +1 more source

Asymmetric species turnover underpins the latitudinal diversity gradient in the Western Ghats biodiversity hotspot of India

Ecography, EarlyView.
Latitudinal diversity gradients (LDGs), namely an increase in species richness from higher to lower latitudes, are one of ecology's best documented patterns, yet how the fundamental components of compositional mismatches (i.e. species gains and losses along a gradient) explain these patterns remains poorly understood.
Rohitashva Shukla, Vidyadhar Atkore, Anuradha Bhat, Neelesh Dahanukar, Jeyaraj Antony Johnson, Rajeev Raghavan, Maria Dornelas, Kartik Shanker, Anne E. Magurran   +8 more
wiley   +1 more source

Hydrological Systems PowerPoint Presentation

, 2010
Hydrological Systems - PowerPoint Presentation - Part Three of human Pressures on the ...
Stephen Whitfield, Keele University, Dr Stefan Krause   +2 more
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Rising, falling, stalling: complex biodiversity trajectories in English rivers

Ecography, EarlyView.
Freshwater ecosystems face intense anthropogenic pressures. Yet in parts of Europe, including the UK, studies have documented widespread increases in macroinvertebrate diversity following investments to improve water quality. More recent analyses, however, suggest that these gains have slowed, plateaued, or even reversed. Despite increasing recognition
Mansi Mungee, Martin Wilkes, Vicky A. Bell, William E. Kunin, Christopher Hassall, Lee E. Brown   +5 more
wiley   +1 more source

Thermal niche breadth shapes regional elevational range sizes of tropical‐like mountain stream insects: evidence for Janzen's tropical mountain passes hypothesis

Ecography, EarlyView.
The core of Janzen's tropical mountain passes hypothesis is that relatively stable annual temperature variation limits species' thermal tolerances breadth, which, in combination with steep elevational temperature gradients, constrains the elevational distributions of these species. In addition to thermal niche breadth, elevational ranges were shaped by
Tingting Zhou, Ramiro Martín‐ Devasa, Xiaodan Chen, Haojie Wang, Yuxin Tan, Zhifa Liu, Bo‐Ping Han, Lu Wang, Zhenyuan Liu, Janne Soininen   +9 more
wiley   +1 more source

Geomorphological theory of the hydrological response

The geomorphological theory of the hydrological response, originated by Rodriguez-Iturbe and Valdes is renewed with reference to the general framework of the formulation of transport processes by travel time distributions.
Rodriguez-Iturbe, I., Rinaldo, A.
core   +1 more source

Modeling climate adaptive habitat connectivity for conservation planning in Colombia

Ecography, EarlyView.
To remain effective under global change, conservation decisions must anticipate shifting climates, species responses to climate change and the dispersal pathways needed to track suitable climate. Yet most assessments of ecological connectivity do not consider how the landscape will change, or, if they do, they only consider a single future time point ...
Lei Song, Amy E. Frazier, Patrick R. Roehrdanz, Wenxin Yang, Joana M. Krieger, Nickolas McManus, Elkin A. Noguera‐ Urbano, Susana Rodriguez‐ Buritica, Dan Willett   +8 more
wiley   +1 more source

Long-Term Changes in Planktonic Ciliate Beta Diversity Under Contrasting Hydrological Regulation in A River-Floodplain System. [PDF]

Environ Microbiol
de Souza YR, de Oliveira de Matos MH, Monti Areco FM, Progênio M, de Meira BR, Souza-Silva AC, de Oliveira FR, Velho LFM.   +7 more
europepmc   +1 more source

The International Hydrological Programme: water science and capacity development for water security.

, 2017
Brochure presenting the activities of The International Hydrological Programme (IHP). The International Hydrological Programme (IHP) is UNESCO’s Intergovernmental Programme on water. It currently runs its eighth phase (IHP-VIII), from 2014 to 2021, which

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