Results 71 to 80 of about 214,283 (306)

Modelling the cooling of concrete by piped water [PDF]

open access: yes, 2009
Large concrete structures are usually made sequentially in a series of blocks. After each block is poured it must be left to cool and shrink for a period depending on its size, but typically for around 1 week, before the next block is poured.
Ballim, Y., Fowkes, N.D., Myers, T.G.
core  

Experiencing Extreme Hunger in Anorexia Nervosa Recovery: A Qualitative Analysis of Reddit Narratives

open access: yesInternational Journal of Eating Disorders, EarlyView.
ABSTRACT Objective Recovery from anorexia nervosa involves psychological and social adjustments that extend beyond weight restoration. Online forums increasingly serve as spaces where recovery experiences are openly shared, including accounts of “extreme hunger” during refeeding—a phenomenon that has not been reported in the clinical literature.
Léonie Langanay   +6 more
wiley   +1 more source

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

open access: yesInternational 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   +4 more
doaj   +1 more source

Stability Evaluation and Parametric Optimization of Coal‐Concrete Composite Bearing Systems Under Mine‐Water‐Induced Deterioration: Experiments and FEINN Analysis

open access: yesEnergy Science &Engineering, EarlyView.
Mine‐water immersion tests reveal pronounced coal weakening (vs. minor concrete degradation), identifying coal pillars as the stability‐limiting component in composite dams. A coupled FEINN framework quantifies extreme‐pressure stability and ranks multi‐parameter designs via a normalized multi‐indicator scheme, enabling optimized dam configuration for ...
He Wen   +6 more
wiley   +1 more source

Thermal And Structural Analyses Of Roller Compacted Concrete Dams [PDF]

open access: yes, 2007
In the present study, a finite element computer code has been developed and is capable for simulating the sequence of construction of the roller compacted concrete dams taking into account the effects of the reservoir water temperature and climatic ...
Bayagoob, Khaled Hamood
core  

2025, Significant Natural Disasters and Global Carbon Capture, Utilization, and Storage—Annual Progress Report

open access: yesEnergy Science &Engineering, EarlyView.
This work provides a comprehensive annual review of 2025 progress in CCUS, integrating advances across scientific, technological, and policy dimensions. ABSTRACT This annual review summarizes the progress of carbon capture, utilization, and storage (CCUS) technologies in 2025.
Shangli Shi, Yun Hang Hu
wiley   +1 more source

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

open access: yesBuildings
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   +7 more
doaj   +1 more source

Risk Assessment of Aged Concrete Gravity Dam Subjected to Material Deterioration Under Seismic Excitation

open access: yesInternational Journal of Concrete Structures and Materials, 2020
This paper proposes an approach to assess and predict the seismic risk of existing concrete gravity dams (CGDs) considering the ageing effect. The combination of fragility function and cumulative absolute velocity (CAV) depending on two failure states ...
Tahmina Tasnim Nahar   +2 more
doaj   +1 more source

The use of FLAC for the seismic evaluation of a concrete gravity dam including dam-water-sediments-foundation rock interaction [PDF]

open access: yes, 2017
Seismic safety of 65m-high Licodia Eubea gravity dam located in Southeastern Sicily (Italy) has been assessed by means of advanced dynamic analyses of the tallest cross-section of the dam. The analyses were performed with two-dimensional, plane strain,
Lanzo, Giuseppe   +3 more
core  

Advanced Functional Materials for Marine Energy Utilization

open access: yesInterdisciplinary Materials, EarlyView.
Marine renewable energy is an important future clean energy supply. We construct and sort out the material system for marine energy capture and conversion, transmission, storage, and utilization for the first time. ABSTRACT Several features of marine energy, including large reserves, sustainable utilization, environmental friendliness, make it a ...
Qiang Yu   +7 more
wiley   +1 more source

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