Results 1 to 10 of about 10,094,478 (315)

Coseismic Stress Change and Viscoelastic Relaxation after the 2008 Great Sichuan Earthquake

open access: yesApplied Sciences, 2022
Long-term stress accumulation influenced by coseismic stress changes and postseismic viscoelastic relaxation is considered critical to triggering giant earthquakes. Nevertheless, how the stress increase is interrupted by aftershocks and how it influences
Chaodi Xie   +6 more
doaj   +1 more source

Precursory Tidal Triggering of the 2011 Mw 9.0 Tohoku Aftershocks

open access: yesApplied Sciences, 2022
Precursory earth tidal triggering is believed to influence earthquake timing preferentially when a region is critically stressed. However, whether and how the recurrence of aftershocks after a giant earthquake is affected by tidal triggering remains ...
Chaodi Xie   +4 more
doaj   +1 more source

Experimental Study on Overburden Movement and Stress Variation of Coal Seam Mining with Associated Step Faults

open access: yesMeikuang Anquan, 2020
In order to study the special case of down-going coal seam mining accompanied by step faults, the upper and lower working faces and step faults of Chaili Coal Mine are used here as research objects.
SUN Yanan, ZHANG Peisen, YAN Wei, ZHAO Yapeng, YAN Fenqian, WU Junda
doaj   +1 more source

Orphan crops: A genetic treasure trove for hunting stress tolerance genes

open access: yesFood and Energy Security, 2023
Orphan crops, also known as minor crops, smart foods, and superfoods, have attracted great attention recently because of their unique ability to grow in resource‐poor marginal lands, and under harsh environmental conditions without any intensive ...
Brijesh Kumar   +4 more
doaj   +1 more source

Resistance Breeding Increases Winter Wheat Gross Margins–An Economic Assessment for Germany

open access: yesFrontiers in Agronomy, 2021
Improved wheat varieties have ameliorated our food production. Intensive cropping systems, as in Germany, achieve very high grain yields and thus contribute greatly to global food security.
Sophia Lüttringhaus   +6 more
doaj   +1 more source

Population-, sex- and individual level divergence in life-history and activity patterns in an annual killifish [PDF]

open access: yesPeerJ, 2019
Variation in life-history strategies along a slow-fast continuum is largely governed by life-history trade-offs. The pace-of-life syndrome hypothesis (POLS) expands on this idea and suggests coevolution of these traits with personality and physiology at ...
Eli S.J. Thoré   +6 more
doaj   +2 more sources

Diversity of Cowpea [Vigna unguiculata (L.) Walp] Landraces in Mozambique: New Opportunities for Crop Improvement and Future Breeding Programs

open access: yesAgronomy, 2021
Cowpea (Vigna unguiculata) is a neglected crop native to Africa, with an outstanding potential to contribute to the major challenges in food and nutrition security, as well as in agricultural sustainability.
Ana Maria Figueira Gomes   +6 more
doaj   +1 more source

Some results of tectonomagnetic monitoring in the epicentral zone of the M7.5 Altay earthquake, September 27, 2003

open access: yesAnnals of Geophysics, 2007
We report tectonomagnetic results from the epicentral area of the 27 September 2003 Ms=7.5 earthquake in the Altay mountains, southern West Siberia.
O. A. Sobolev   +3 more
doaj   +1 more source

Coulomb stress changes and magnitude-frequency distribution for Lake Van region

open access: yesBulletin of the Mineral Research and Exploration, 2022
The tectonic structure of Türkiye is under the influence of Arabian, Eurasian, African, and Anatolian plates. Lake Van region, located in eastern Türkiye, has been exposed to many devastating earthquakes in historical and instrumental periods.
Hamdi Alkan, Erdem Bayrak
doaj   +1 more source

Safety Factor Calculation and Specification Optimization of Casing with a Missing of Cement Sheath

open access: yesShiyou jixie, 2023
In the Maling Oilfield, Changqing, casing frequently deform during the hydraulic fracturing process.In order to solve this problem, considering the change in mechanical behavior of strata and internal pressure of casing in vertical hole section, a stress
Ding Jianxin   +5 more
doaj  

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