Results 61 to 70 of about 1,190,930 (264)

Care through cultivation: Indigenous Swidden agriculture as forest care

People and Nature, EarlyView.
Abstract This paper argues that the agricultural practices of Bunong swidden cultivators in northeastern Cambodia constitute relational care for forests that is fundamentally misunderstood, misrecognized, and marginalized by dominant state policies, conservation, and development paradigms. Bringing together care theory, long‐term ethnographic research,
Esther Leemann
wiley   +1 more source

Characteristics of Different Kinds of Concrete Gravity Dam Under Water Contact Explosion

工程科学与技术, 2017
:In the past half century,China has constructed more dams than any other country in the world.The impact of the blast load on the safety of a concrete dam needs to be assessed.The effects of different locations for underwater contact explosion on two ...
XU Qiang, CHEN Jianyun, LIU Jing, LI Jing, CAO Yang   +4 more
doaj  

Strain-Rate Effect on Mechanical Properties of Fully Graded and Wet-Screened Dam Concrete Based on Flexural and Compressive Tests

Buildings
The dynamic mechanical properties of dam concrete play a critical role in the seismic design of dams. Conducting experiments on large-scale fully graded specimens to accurately obtain the mechanical properties of dam concrete is a challenging task.
Kunhang Zhang, Shengshan Guo, Haibo Wang, Deyu Li, Jin Tu, Hong Zhong, Lijun Zhao, Chunlei Li   +7 more
doaj   +1 more source

Stochastic inversion of deformation moduli of concrete dam body and foundation based on Markov chain Monte Carlo method

Shuili Shuiyun Gongcheng Xuebao, 2020
In view of the large number of uncertainties in the inversion of mechanical parameters of concrete dam materials, the Markov chain Monte Carlo (MCMC) stochastic inversion method for elastic modulus of the dam body and deformation modulus of the dam ...
CHENG Jing, LI Peicong, LI Tongchun, YUAN Ping   +3 more
doaj   +1 more source

Theoretical framework for updating cross‐sections in river models using non‐standard information coming from crowdsourced images

River, EarlyView.
Abstract During high rainfall events, one reason for flooding in urban rivers is hydraulic blockages or obstructions in channels. These may cause damming and an immediate increase in upstream water levels, leading to inundation of surroundings. The accuracy of flood models is strongly dependent on the representation of the topography of floodplain and ...
Muhammad Haris Ali, Thaine Herman Assumpção, Andreja Jonoski, Ioana Popescu   +3 more
wiley   +1 more source

Examining the Political Dimensions of Sustainability: The Role of Freedom of Expression in Environmental Outcomes

Sustainable Development, EarlyView.
ABSTRACT Although significant efforts have been made to prevent environmental degradation, the success of these initiatives has remained limited. The primary reason for this is environmental issues' complex and multidimensional nature. Economic, political, and social dynamics play a central role in shaping environmental problems, necessitating a ...
Umut Uzar
wiley   +1 more source

Reservoir water effects on earthquake performance evaluation of Torul Concrete-Faced Rockfill Dam

Water Science and Engineering, 2009
This study presents earthquake performance analysis of the Torul Concrete-Faced Rockfill (CFR) Dam with two-dimensional dam-soil and dam-soil-reservoir finite element models.
Alemdar BAYRAKTAR, Murat Emre KARTAL, Hasan Basri BASAGA   +2 more
doaj   +3 more sources

Dynamic responses of concrete-faced rockfill dam due to different seismic motion input methods

International Journal of Distributed Sensor Networks, 2018
The concrete-faced rockfill dam valley foundation was considered as an open energy system and a reasonable non-uniform seismic motion input method was applied to the dynamic analysis of a concrete-faced rockfill dam based on the generalized plastic model.
Bin Xu, Yang Zhou, Chenguang Zhou, Xianjing Kong, Degao Zou   +4 more
doaj   +1 more source

A Positioning Method of Temperature Sensors for Monitoring Dam Global Thermal Field

Frontiers in Materials, 2020
During the concrete pouring process of a dam construction, timely and accurate temperature monitoring is of great significance to reveal the thermal distribution characteristics and evolution process, and control concrete cracking.
Haoyang Peng, Peng Lin, Yunfei Xiang, WenQi Chen, Shaowu Zhou, Ning Yang, Yu Qiao   +6 more
doaj   +1 more source

Fracture of Rock-Concrete Interfaces: Laboratory Tests and Applications [PDF]

, 2004
The fundamental understanding of the fracture behavior at the rock-concrete interface requires evaluation of the fracture energy, which is an interface material property.
Saouma, Victor E, Kishen, Chandra JM
core