Results 71 to 80 of about 20,018 (249)

Numerical research on anti‐dislocation measures design of deep‐buried tunnels in an anisotropic rock mass area

Deep Underground Science and Engineering, EarlyView.
This paper conducts a numerical simulation study on the construction of a deep‐buried tunnel in an anisotropic stratum area. A statistical analysis of the effects of two anti‐faulting design measures, namely, a conventional design and an articulated design, is carried out, and the results demonstrate the effectiveness of the anti‐faulting structures ...
Shiqi Liu, Huanling Wang, Yong Zhou, Zhen Wang   +3 more
wiley   +1 more source

Coordination of Hydropower Generation and Export Considering River Flow Evolution Process of Cascade Hydropower Systems

Energies
Focusing the over simplification of existing models in simulating river flow evolution process and lack of coordination of hydropower generation and export, this paper proposes a hydropower generation and export coordinated optimal operation model that ...
Pai Li, Hui Lu, Lu Nan, Jiayi Liu
doaj   +1 more source

Developing a universal tunnel span classification from global tunnel databases

Deep Underground Science and Engineering, EarlyView.
A universal tunnel span classification system is introduced that incorporates tunnel span, cross‐sectional area, typical tunnel types, and intended uses. Representative flatness ratio values are also provided for each span class. The classification is derived from a comprehensive database of 450 tunnel profiles from 47 countries.
Simon Heru Prassetyo, Inzagi Suhendar, Semmy Andrew Anugerah Djawa Tagi, Bonifacio Bondan Satryojati, Dzakwan Naufal Pratama, Yeremia Sintong Damero, Yudhidya Wicaksana, Erwin Lim, Ridho Kresna Wattimena   +8 more
wiley   +1 more source

Impacts of recent drought and warm years on water resources and electricity supply worldwide

Environmental Research Letters, 2016
Recent droughts and heatwaves showed the vulnerability of the electricity sector to surface water constraints with reduced potentials for thermoelectric power and hydropower generation in different regions.
Michelle T H van Vliet, Justin Sheffield, David Wiberg, Eric F Wood   +3 more
doaj   +1 more source

Nanocubes and Cuboctahedra: Entropic Stabilization Versus Thermal Segregation in Rock Salt‐ and Spinel‐Type Multinary Oxides from Spray‐Flame Synthesis

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Spray‐flame synthesis enables highly flexible and scalable production of multinary and high‐entropy oxide nanoparticles due to high synthesis temperatures with subsequent quenching. Temperature‐dependent in situ diffraction of as‐synthesized materials clearly reveals entropy stabilization in rock salt lattices, while spinels—featuring tetrahedral and ...
Mohammed‐Ali Sheikh, Steven Angel, Sabrina Schleich, Leon Müller, Jan Ternieden, Hatem M. A. Amin, Christof Schulz, Hartmut Wiggers   +7 more
wiley   +1 more source

Advances in Sulfur Cathodes for High‐Energy All‐Solid‐State Lithium Batteries With Sulfide Solid Electrolytes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review summarizes the key optimization strategies and challenges for all‐solid‐state lithium–sulfur batteries based on sulfide solid‐state electrolytes, covering electrolyte synthesis, cathode design, interface engineering, and industrialization considerations.
Yongsheng Gao, Hui Shao, Yuan Li, Baojuan Xi, Shenglin Xiong, Jinkui Feng   +5 more
wiley   +1 more source

Short-Term Optimal Scheduling Method of Cascade Hydropower Stations Based on Segmented Load Construction Strategy

Renmin Zhujiang, 2023
With the rapid development of China's economy,electricity demand has increased.As the largest clean energy in China,hydropower has been put into large-scale and centralized production,and the most complex large-scale hydropower system in the world is ...
LI Chonghao, LI Shushan, TANG Hongbing, LIU Huan, MA Xiangyu, LIAO Shengli   +5 more
doaj  

Civil Society Advocacy and Climate Change in Kenya: The Question of “Local Voices” and Their “Amplification”

Environmental Policy and Governance, EarlyView.
ABSTRACT The role of civil society organizations (CSOs) in addressing climate change is acknowledged, but engagement with questions of voice remains limited, especially in the Global South. Addressing this, this paper zooms in on (International) nongovernmental organizations ((I)NGOs) and their collaborations with domestic CSOs in the Global South on ...
Margit van Wessel, Precious Akampurira
wiley   +1 more source

Global dataset combining open-source hydropower plant and reservoir data

Scientific Data
Hydropower is a crucial renewable source that depends heavily on water availability. Analyzing drought and climate change impacts on hydropower potential requires detailed data on both hydropower plant attributes (e.g.
Jignesh Shah, Jing Hu, Oreane Y. Edelenbosch, Michelle T. H. van Vliet   +3 more
doaj   +1 more source

Impact Analysis of Climate Change on Hydropower Resource Development in the Vakhsh River Basin of Tajikistan

Hydrology
With increasing energy demands and environmental pressures, hydropower, as a clean and renewable energy source, has attracted widespread attention for its development and utilization.
Hailong Liu, Aminjon Gulakhmadov, Firdavs Shaimuradov   +2 more
doaj   +1 more source