Results 31 to 40 of about 3,378,493 (310)

Research on the Regional Environmental Impact and Risk Assessment Affected by Mineral Resource Development: A Case Study of the Taojia River Watershed in Hunan

open access: yesFrontiers in Ecology and Evolution, 2022
The mining and production of mineral resources can directly lead to soil and water pollution, posing a serious threat to human health. In this study, the Taojia River basin, a tributary of the Xiangjiang River, was selected as the study area.
Hongying Cao   +9 more
doaj   +1 more source

Numerical Simulation on Aftershock Fragility of Low-Ductility RC Frames under Different Mainshock-Induced Damage Conditions

open access: yesBuildings
Aftershocks typically occur multiple times following major earthquakes, potentially inflicting enhanced damage. It is crucial to quantify the impact of aftershocks on the seismic performance of low-ductility reinforced concrete (RC) frames with different
Bomin Qiu, Jianping Han, Jun Li
doaj   +1 more source

Changes in CYP3A4 Enzyme Expression and Biochemical Markers Under Acute Hypoxia Affect the Pharmacokinetics of Sildenafil

open access: yesFrontiers in Physiology, 2022
To investigate the effects of pathological, physiological, biochemical and metabolic enzymes CYP3A4 on the pharmacokinetics of sildenafil under acute hypoxia, rats were randomly divided into the plain group (50 m above sea level), acute plateau group 1 ...
Juanhong Zhang   +5 more
doaj   +1 more source

A method for vibration-based structural interrogation and health monitoring based on signal cross-correlation [PDF]

open access: yes, 2011
Vibration-based structural interrogation and health monitoring is a field which is concerned with the estimation of the current state of a structure or a component from its vibration response with regards to its ability to perform its intended function ...
Bendat JS   +4 more
core   +1 more source

Damage localisation using disparate damage states via domain adaptation

open access: yesData-Centric Engineering
Abstract A significant challenge of structural health monitoring (SHM) is the lack of labeled data collected from damage states. Consequently, the collected data can be incomplete, making it difficult to undertake machine learning tasks, to detect or predict the full range of damage states a structure may experience.
Wickramarachchi, C.T.   +5 more
openaire   +3 more sources

Investigating rock mutation characteristics and damage state warning model based on energy conversion

open access: yesEnergy Science & Engineering
Rock engineering achieves the secondary stress balance through rock mass structure adjustment, where energy conversion is throughout and associated closely with rock deformation and damage.
Hongming Cheng   +2 more
doaj   +1 more source

Termite Distribution in Michigan [PDF]

open access: yes, 2017
Subterranean termites have been present in Michigan for a long time. They were reported as being destructive to buildings in 1920 (Anonymous, 1961), and apparently damage done at that time was increasing over what had occurred earlier.
Behr, Etdon A.
core   +3 more sources

Psychosocial Outcomes in Patients With Endocrine Tumor Syndromes: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction The combination of disease manifestations, the familial burden, and varying penetrance of endocrine tumor syndromes (ETSs) is unique. This review aimed to portray and summarize available data on psychosocial outcomes in patients with ETSs and explore gaps and opportunities for future research and care.
Daniël Zwerus   +6 more
wiley   +1 more source

Research on the influence of site characteristic period on engineering material usage and damage states of high rise buildings

open access: yes地震科学进展
Two typical analysis models for high rise building structures (the shear wall structure and the frame shear wall structure) were established in this paper.
Xiangxiu Li   +3 more
doaj   +1 more source

Adaptive microwave impedance memory effect in a ferromagnetic insulator

open access: yesNature Communications, 2016
Dissipative systems may provide another platform towards adaptive electronics beyond adaptive biological systems. Here, Leeet al. report a non-volatile memristive microwave device based on adaptive tuning of the dissipative magnetic domains of a driven ...
Hanju Lee, Barry Friedman, Kiejin Lee
doaj   +1 more source

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