Results 31 to 40 of about 12,996,719 (308)

Non contact inspection of the fatigue damage state of carbon fiber reinforced polymer by optical surface roughness measurements

, 2015
This work presents the evaluation of a new non-contact technique to assess the fatigue damage state of CFRP structures by measuring surface roughness parameters.
P. Zuluaga-Ramírez, M. Frövel, T. Belenguer, F. Salazar   +3 more
semanticscholar   +1 more source

Electrical Defect Imaging of ITO Coated Glass by Optical Microscope With Microwave Heating

IEEE Access, 2019
We present a new optical method for the electrical defect inspection for indium tin oxide (ITO) thin film on a glass substrate. The present method is based on the visualization of the microwave heating distribution around an electrical defect from the ...
Hanju Lee, Zhirayr Baghdasaryan, Barry Friedman, Kiejin Lee   +3 more
doaj   +1 more source

A moderate dosage of prostaglandin E2-mediated annexin A1 upregulation promotes alkali-burned corneal repair

iScience, 2023
Summary: Corneal alkali burn remains a clinical challenge in ocular emergency, necessitating the development of effective therapeutic drugs. Here, we observed the arachidonic acid metabolic disorders of corneas induced by alkali burns and aimed to ...
Hongling Liu, Xue Zhang, Qiang Tan, Lingling Ge, Jia Lu, Chunge Ren, Baishijiao Bian, Yijian Li, Yong Liu   +8 more
doaj   +1 more source

Study on the Damage State and Vulnerability of Twin-Channel Tunnels Under Single-Channel Internal Explosions

Buildings
Tunnels are critical components of transportation networks. Explosions caused by accidents or terrorist attacks can severely damage tunnel linings and even cause structural collapse.
Fengzeng Li, Zhengpeng Li, Liang Li, Li Wang   +3 more
doaj   +1 more source

Detection of a Conductive Object Embedded in an Optically Opaque Dielectric Medium by the Thermo-Elastic Optical Indicator Microscopy

IEEE Access, 2019
We present a new method for the subsurface imaging of a conductive object embedded in a dielectric medium based on microwave imaging by thermo-elastic optical indicator microscopy.
Hanju Lee, Zhirayr Baghdasaryan, Barry Friedman, Kiejin Lee   +3 more
doaj   +1 more source

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

Frontiers 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, Hongying Cao, Ziwei Wang, Ziwei Wang, Ziwei Wang, Xiaoyong Liao, Xiaoyong Liao, You Li, You Li, Yongbing Zhu   +9 more
doaj   +1 more source

Damage localisation using disparate damage states via domain adaptation

Data-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., Gardner, P., Poole, J., Hübler, C., Jonscher, C., Rolfes, R.   +5 more
openaire   +3 more sources

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

Energy 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, Xiaobin Yang, Yongqing Lan   +2 more
doaj   +1 more source

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

Buildings
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

Frontiers 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, Juanhong Zhang, Juanhong Zhang, Rong Wang, Rong Wang, Rong Wang   +5 more
doaj   +1 more source