Results 21 to 30 of about 2,873,200 (314)

隐伏正断层错动引发上覆土体破裂过程的三维数值模拟

open access: yesDizhen xuebao, 2019
通过建立三维数值模型,对隐伏正断层在均匀错动和倾斜错动方式下土体的破裂过程进行研究。利用应力罗德参数和等效塑性应变分别对断层错动过程中上覆土体的应力状态和破坏形式进行分析,并提出土体破裂的判别方法。通过对数值模拟结果的分析得到以下结论:① 在断层错动过程中,下盘一侧受断层错动影响的上覆土体的应力状态经压剪→纯剪→拉剪逐渐变化,而上盘一侧上覆土体的应力状态变化较为复杂,经压剪→纯剪→拉剪→纯剪→压剪重复变化;② 在断层均匀错动过程中,断层下盘一侧土体的破裂率先出现在地表拉剪区内,随错动量的增大 ...
Jianfeng Qi   +3 more
doaj   +1 more source

The application of backpropagation neural network method to estimate the sediment loads

open access: yesMATEC Web of Conferences, 2017
Nearly all formulations of conventional sediment load estimation method were developed based on a review of laboratory data or data field. This approach is generally limited by local so it is only suitable for a particular river typology.
Ari Gunawan Taufik   +3 more
doaj   +1 more source

Revisiting dominant practices in floodwater harvesting systems: making flood events worth their occurrence in flood-prone areas

open access: yesApplied Water Science, 2019
The lower Shire valley region in Malawi has long been characterized by floods which have accounted for many fatalities and disaster-related economic losses in the region.
Mphatso Malota, Joshua Mchenga
doaj   +1 more source

Hydrochemical Characteristics and Formation Mechanism of Strontium-Rich Groundwater in Shijiazhuang, North China Plain

open access: yesJournal of Chemistry, 2021
Strontium is a kind of trace element. Groundwater containing strontium is called mineral water when its content reaches a level that is beneficial for human physiology. Some groundwater resources in Shijiazhuang are rich in strontium.
Duo Li   +7 more
doaj   +1 more source

Flooding Analysis for Alluvial River Based on the Balance between Flood Control and Floodplain Development

open access: yesGuan'gai paishui xuebao, 2022
【Background】 Floodplain is the ecological cradle of alluvial rive to provide a buffer to flooding. Rivers naturally function to transport runoff and sediment, making the river have the double section characteristics of river trough and beach to meet the ...
XUE Hai   +5 more
doaj   +1 more source

Assessment of regional trade and virtual water flows in China [PDF]

open access: yes, 2006
The success of China's economic development has left deep marks on resource availability and quality. Some regions in China are relatively poor with regards to water resources. This problem is exacerbated by economic growth.
Dabo, G., Hubacek, K.
core   +1 more source

Water resources management in a homogenizing world: Averting the Growth and Underinvestment trajectory [PDF]

open access: yes, 2014
Biotic homogenization, a de facto symptom of a global biodiversity crisis, underscores the urgency of reforming water resources management to focus on the health and viability of ecosystems.
Hjorth, P   +4 more
core   +1 more source

Development of limited water resources : historical and technological aspects [PDF]

open access: yes, 2000
This review describes how the constraints of limited water resources and an arid and semi-arid environment were overcome by a leadership capable of defining future needs and identifying and implementing appropriate solutions. Advanced technologies proved
Sitton, Dov
core  

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

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