Results 51 to 60 of about 151,142 (279)

Seismic design of Xiluodu ultra-high arch dam

open access: yesWater Science and Engineering, 2018
The 285.5 m-high Xiluodu Arch Dam is located in a seismic region along the Jinsha River in China, where the horizontal components of peak ground accelerations for design and checking earthquakes have been estimated to be 0.355g and 0.423g, respectively ...
Ren-kun Wang, Lin Chen, Chong Zhang
doaj   +1 more source

Effects of outbreeding depression on meristics and bilateral asymmetry in hybrids of spatially separated populations of pink salmon (Oncorhynchus gorbuscha) [PDF]

open access: yes, 2005
Thesis (M.S.) University of Alaska Fairbanks, 2005Different populations of a species distributed over diverse conditions adapt to their local environments to improve their ability to survive or reproduce. Intraspecific hybridization can alter the locally
Hoover, Carrie L.
core  

Effects of Changing Surrounding Conditions on the Thermal Analysis of the Moste Concrete Dam [PDF]

open access: yes, 2015
This paper deals with the heat transfer analysis of the 63 years old and 60 metres high Moste concrete arch-gravity dam, located in NW Slovenia, which was performed after a new sophisticated monitoring system had been established, making it possible to ...
Kryžanowski, Andrej   +2 more
core   +2 more sources

Centring care as part of Indigenous environmental stewardship: Collective learning through cultural plants

open access: yesPeople and Nature, EarlyView.
Abstract Stewardship is broadly defined as ‘universal responsibility of humanity to care for the planet, to ensure that it can continue to provide the essential natural resources for life’. Stewardship practices shape ecosystems, create diverse biocultural landscapes, and can enhance the productivity, availability and health of plants used by ...
Megan Mucioki   +9 more
wiley   +1 more source

A Comparison Method for 3D Laser Point Clouds in Displacement Change Detection for Arch Dams

open access: yesISPRS International Journal of Geo-Information, 2021
Dam deformation monitoring can directly identify the safe operation state of a dam in advance, which plays an important role in dam safety management. Three-dimensional (3D) terrestrial laser scanning technology is widely used in the field of deformation
Yijing Li   +3 more
doaj   +1 more source

Permafrost Terrain Disturbance Susceptibility in the Nacho Nyäk Tagé (Stewart River) Watershed, Yukon, Canada

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT The Nacho Nyäk Tagé (Stewart River) watershed in central Yukon (Canada) is characterized by discontinuous permafrost that is locally highly sensitive to thaw. This study aims to map the spatial distribution of permafrost terrain disturbances (PTDs) in the watershed and model thaw susceptibility to support community‐led land‐use planning by the
Frederic Brieger   +2 more
wiley   +1 more source

Response Analysis of Dam Heel and Gallery Arch before and after Backfilling and Water Filling of High Dam

open access: yesRenmin Zhujiang, 2021
As the key to the construction of high dams,backfilling in front of the dam and filling of the foundation pit have an important impact on the stress state of key parts of the dam body,such as the dam heel and gallery arch.Therefore,this paper studies the
FU Yuchen   +5 more
doaj  

EFFECTIVE SEDIMENT CONTROL IN A RESERVOIR [PDF]

open access: yes, 2014
Sedimentation in a reservoir cannot be avoided. The average rate of sedimentation on the storage volume reduction of a reservoir in the world is about 1 % per year (Yoon,1992), meanwhile, the storage volume reduction in several reservoir in Indonesia ...
Djoko , Legono   +3 more
core  

A Study on Preventing Thermal Runaway of Contaminated Ammonium Nitrate Prill in Bulk Storage

open access: yesPropellants, Explosives, Pyrotechnics, EarlyView.
Schematic illustration of a contaminated region of ammonium nitrate prill undergoing exothermic decomposition, producing gases containing NOx. The interstitial flow of these heated gases rapidly raises the temperature of ammonium nitrate along the flow path.
Pramith Priyananda   +3 more
wiley   +1 more source

Substantiation of chamber parameters under combined open-cast and underground mining of graphite ore deposits [PDF]

open access: yes, 2011
The move from open-cast to combined mining method of developing Zavalyevsky deposit of graphite is considered in the paper. The selection of chamber dimension satisfying conditions of long-term stability is one of the questions for scientific ...
Busylo, V.I.   +3 more
core   +1 more source

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