Results 141 to 150 of about 97,480 (346)

In situ loading of a pore network model for quantitative characterization and visualization of gas seepage in coal rocks

Deep Underground Science and Engineering
The flow characteristics of coalbed methane (CBM) are influenced by the coal rock fracture network, which serves as the primary gas transport channel. This has a significant effect on the permeability performance of coal reservoirs.
Huazhe Jiao, Xi Chen, Tiegang Zhang, Quilligan Michael, Yixuan Yang, Xiaolin Yang, Tongyi Yang   +6 more
doaj   +1 more source

The German Soil Systematics and the Rationale Behind Its Revision

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background The German Soil Systematics is a pedogenetic classification based on the morphological expressions of pedogenic processes and has been developed over several stages since 1952. The system has successfully been in use for soil classification and soil survey for almost 70 years.
Einar Eberhardt, Karl Stahr, Peter Schad, Alexander Gröngröft   +3 more
wiley   +1 more source

Seepage analysis of the headwork of Chanda Mohana irrigation scheme, Nepal

, 2011
Most of the irrigation schemes in Nepal are in the Terai (plain) Region. Most of the weir type irrigation headworks built in alluvial rivers in Terai fail due to seepage before the end of their economic life period.
Kaini, S.
core  

Food Security Versus Environmental Health: The Nitrogen Dilemma

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Nitrogen is an essential element for plant growth and, consequently, crop production. However, the cycling of nitrogen in the environment can have negative effects. Here, we review the historical development of scientific and public awareness of these effects and the influence this has had on political action to control them.
Henrike Mielenz, Norbert Bischoff, Klaus Butterbach‐Bahl, Uwe Häußermann, Kurt‐Christian Kersebaum, Karin Rather, Burkhard Stever‐Schoo, Reinhard Well, Claas Nendel   +8 more
wiley   +1 more source

Development of a watercourse-based model to assess the canal water supply at the farm level [PDF]

Irrigation systems / Irrigation canals / Water supply / Watercourses / Water allocation / Irrigation scheduling / Hydraulics / Models / Seepage loss / Flumes / Calibrations / Discharges / Performance indexes / Pakistan / Indus ...
Barral, J.
core  

Climate Change and Reduction of Soil Organic Layer Thickness Increases Drought Risk in Mountain Forests of the Northern Alps

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background On ca. 10% of the forested sites in the Bavarian Alps (Germany) mountain, forest soils (so‐called folic histosols) are characterized by thick organic layers overlying poorly weathered calcareous parent material. Aim These organic layers play a critical role in releasing water and nutrients for vegetation, yet they are also sensitive
Marc Kühnbach, Axel Wellpott, Rupert Seidl, Hans‐Joachim Klemmt, Klaas Wellhausen, Jörg Ewald   +5 more
wiley   +1 more source

Effects of wave-induced two-dimensional seepage flow on sediment incipient motion

, 2020
Sediment incipient motion is the first stage of the whole process of local scour around a marine infrastructure. Most previous investigations ignored seepage flow on the mobility of bed particles except a recent study including the effects of vertical ...
Jeng, Dong-Sheng, Liu, Junwei, Zhai, Hualing   +2 more
core  

Ngarrawa (mound spring) sediments as archives of Holocene environmental change in arid central Australia: Insights from Itrax XRF scanning

Journal of Quaternary Science, EarlyView.
ABSTRACT Central Australia's ngarrawa, or ‘mound springs’, are unique hydrological systems that serve as some of the only near‐permanent sources of water and continuous sediment deposition in Australia's arid interior. As such, they hold significant potential as palaeo‐climate and ‐environmental archives in a region where many aspects of past climate ...
Fletcher C. Nixon, Jonathan J. Tyler, Patricia S. Gadd, Quan Hua   +3 more
wiley   +1 more source

Bevacizumab‐Associated Eczema Herpeticum in Metastatic Ovarian Carcinoma: A Case Report

JEADV Clinical Practice, EarlyView.
ABSTRACT Eczema herpeticum (EH) is a rare but potentially life‐threatening cutaneous infection caused by herpes simplex virus (HSV), classically associated with atopic dermatitis. Its occurrence in oncology patients receiving anti‐angiogenic targeted therapy and cytotoxic chemotherapy is exceedingly uncommon.
Mandeep Dutta Joshi, Nishant Pandey, Sushan Ghimire, Avilasha Shah, Anurag Tiwari, Salina Subedi, Deepika Neupane   +6 more
wiley   +1 more source

An Elasto–Plastic Hydro–Mechanical Model for Analyzing the Swelling Behavior of Heterogeneous Clay–Sulfate Rocks

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Swelling of clay‐sulfate rocks is a concern in geotechnical engineering that can damage infrastructure. In the historic town of Staufen in southwest Germany, geothermal drilling into a swellable anhydrite‐bearing clay formation resulted in water inflow and subsequent swelling, triggering ground heave and damage to more than 250 houses.
Reza Mahmoudi Kouhi, Reza Taherdangkoo, Thomas Nagel, Faramarz Doulati Ardejani, Christoph Butscher   +4 more
wiley   +1 more source