Results 61 to 70 of about 7,797 (174)

Multiscale structural analysis inspired by exceptional load cases concerning the immersed tunnel of the Hong Kong-Zhuhai-Macao Bridge

open access: yesUnderground Space, 2018
This paper contains an assessment of the added value of multiscale material models for concrete in the context of macroscopic structural analysis of (steel-reinforced) concrete structures. Two examples are discussed.
Hui Wang   +4 more
doaj   +1 more source

Anti‐Globalization Dynamics and Africa's Structural Transformation: Identifying Avoidable Environmental Degradation Thresholds

open access: yesSustainable Development, EarlyView.
ABSTRACT This study pursues a dual objective. First, it investigates the unconditional impact of anti‐globalization on structural transformation in Africa. Second, it explores how environmental degradation interacts with anti‐globalization to influence structural transformation. The analysis focuses on 52 African countries over the period 2005–2023. To
Simplice A. Asongu, Ekene ThankGod Emeka
wiley   +1 more source

Dynamic Initiation and Propagation of Multiple Cracks in Brittle Materials [PDF]

open access: yes, 2013
Brittle materials such as rock and ceramic usually exhibit apparent increases of strength and toughness when subjected to dynamic loading. The reasons for this phenomenon are not yet well understood, although a number of hypotheses have been proposed ...
Qiaoping Huang, Jie Li, Xiaodan Ren
core   +1 more source

The influences of cooling regimes on fire resistance of ultra-high performance concrete under static-dynamic coupled loads [PDF]

open access: yes, 2022
Cooling regimes have a significant effect on the mechanical properties of ultra-high performance concrete (UHPC) after exposure to elevated temperatures.
Liu, K   +6 more
core   +1 more source

Implementing Argument‐Based Validity in Second Language Research on Individual Differences

open access: yesTESOL Quarterly, EarlyView.
Abstract Quantitative meta‐syntheses focusing on the psychometric properties of measurement tools in second and foreign language (L2) individual differences (ID) research have drawn scholars' attention to the quality of data collection instruments (Plonsky & Derrick, 2016; Sudina, 2023).
Katalin Piniel, Ekaterina Sudina
wiley   +1 more source

Dynamic Mechanical Behavior and DIF-Based Capacity Prediction of Steel–CA–UHPC Composite Beams Under Impact Loading

open access: yesBuildings
Steel–concrete composite beams are widely used in building and bridge engineering; however, the impact response of Steel–Coarse Aggregate–Ultra-High Performance Concrete (Steel–CA–UHPC) composite beams remains insufficiently quantified, and no beam ...
Hao Hu   +3 more
doaj   +1 more source

Current‐Carrying Characteristics of High‐Voltage Land Cables With Different Grounding Methods for Low‐Frequency AC Transmission

open access: yesHigh Voltage, EarlyView.
ABSTRACT Low‐frequency AC transmission holds promise for high‐voltage land cables, but its ampacity is significantly influenced by cable grounding methods and other structural factors. To explore the specific low‐frequency current‐carrying characteristics of high‐voltage land cables, this paper conducts a thorough theoretical analysis of the coupling ...
Yongpei Li   +4 more
wiley   +1 more source

Degradation Law of Dynamic Mechanical Properties of Coral Concrete Under Marine Environment

open access: yesBuildings
The impact mechanical properties of coral aggregate seawater concrete (CASC) are crucial for its application in island construction. This study examines how the dynamic compressive mechanical properties of CASC degrade in a marine setting.
Yi Zhong   +5 more
doaj   +1 more source

Policy Evaluation for Climate Mitigations in the European Agricultural Sector—A Comparison of Policy Options at Micro and Macro Level

open access: yesAustralian Journal of Agricultural and Resource Economics, EarlyView.
ABSTRACT The purpose of this paper is to discuss the micro‐ and macro‐outcomes for the standard neoclassical carbon tax (whose burden falls on the producers) versus the implication of a budget neutral, performance‐based EU Common Agricultural Policy (CAP) focusing on non‐CO2 emission (N2O and CH4, measured in CO2eq) reduction, especially in the ...
John Helming   +4 more
wiley   +1 more source

Effect of End Friction on the Dynamic Compressive Mechanical Behavior of Concrete under Medium and Low Strain Rates

open access: yesShock and Vibration, 2016
The objective of the study is to examine the quantitative influence of end friction on the dynamic mechanical behavior of concrete under medium and low strain rates.
Liu Jin   +3 more
doaj   +1 more source

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