Results 71 to 80 of about 1,764 (244)
Land Degradation &Development, EarlyView.ABSTRACT Subalpine meadows play important roles in biodiversity conservation and soil carbon sequestration, but gully erosion poses a serious threat to their ecological stability. Soil shear strength (τ) is a key mechanical parameter for evaluating gully stability and soil resistance to failure. However, the spatial variation in soil shear strength and
Xiaofeng Yang +9 more
wiley +1 more source
Safety Analysis of the Earth-rock Fill Dam with Built-in Longitudinal Reinforced Wall
工程科学与技术, 2020 The longitudinal reinforced earth-rock dam was a new type of dam. The dam structure was formed by setting the rigid impermeable core wall in earth-rock dam, that the rigid core-wall played an important role in anti-seepage water and soil pressure and ...
Jun LIANG, Yanwei YANG
doaj
Limnology and Oceanography: Methods, EarlyView.Abstract Tailwaters are ubiquitous and highly managed ecosystems whose food webs often rely disproportionately on autochthonous energy. In situ continuous dissolved oxygen data are increasingly being used to estimate gross primary productivity and ecosystem respiration in rivers, but this approach is complicated in tailwaters, where upriver ...
Ian W. Bishop +5 more
wiley +1 more source
Renmin Zhujiang, 2020 In order to study the influence mechanism and law of seepage-stress coupling and thefluctuation of reservoir level on slope stability of small and medium homogeneous earth-rock dams,according to the principle of unsaturated seepage and the simplified ...
SU Zhengyang, ZHANG Zhitao, LI Hanzhang
doaj
Applied Sciences, 2019 The real-time compaction quality evaluation of earth-rock dam plays a pivotal role in ensuring dam safety. However, the current real-time compaction quality evaluation only takes the physical properties of compacted dam materials into account, which ...
Minghui Liu +5 more
doaj +1 more source
Manufacturing Nostalgia in the Digital Age: A Foreverism Perspective
Psychology &Marketing, EarlyView.ABSTRACT Many scholars argue that we are experiencing the era of “retro”—nostalgia‐driven marketing and consumption phenomena reinforced by digital technologies. However, existing research lacks a critical analysis of nostalgia in contemporary markets and of how digital content, tools, and environments transform retro consumption experiences and alter ...
Dinara Davlembayeva +4 more
wiley +1 more source
Numerical modeling of breach process of landslide dams due to overtopping and its application
Yantu gongcheng xuebao, 2018 As a production of natural process, the landslide dam has poor structural stability, and most of which will finally fail due to overtopping, which will pose tremendous risks to the people and property in the inundated area.
SHEN Guang-ze 1, SHENG Jin-bao 1,2, XIANG Yan 1,2, ZHONG Qi-ming 1,2
doaj +1 more source
Assessment and Feedback Control of Paving Quality of Earth-Rock Dam Based on OODA Loop. [PDF]
Sensors (Basel), 2021 Wang C +5 more
europepmc +1 more source
Two new endemic species of Portulaca (Portulacaceae) from the Brazilian Pampa grasslands
Nordic Journal of Botany, EarlyView.Portulaca L. is a monophyletic, cosmopolitan genus of succulent plants comprising ca 153 species, with particularly high diversity in xerophytic ecosystems in tropical and subtropical regions. Based on morphological evidence, we describe and illustrate two new species from the Brazilian Pampa, Portulaca guaritensis and Portulaca guenoa.
José Roberto Ferraz +3 more
wiley +1 more source
A simplified physically-based breach model for a high concrete-faced rockfill dam: A case study
Water Science and Engineering, 2018 A simplified physically-based model was developed to simulate the breaching process of the Gouhou concrete-faced rockfill dam (CFRD), which is the only breach case of a high CFRD in the world.
Qi-ming Zhong +2 more
doaj +1 more source