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Integrating Shipborne Images with Multichannel Deep Learning for Landslide Detection

Journal of Earth Science 2024年第1期35卷 296-300页

作者： Pengfei Feng changdong Li Shuang Zhang jie Meng Jingjing Long School of Mechanical Engineering and Electronic Information China University of GeosciencesWuhan 430074China Faculty of Engineering China University of GeosciencesWuhan 430074China department of Civil Badong National Observation and Research Station of Geohazards China University of GeosciencesWuhan 430074China college of Geology Engineering and Geomatics Changan UniversityXi'an 710054China department of Geosciences University of OsloOslo 0316Norway

0 *** disasters in recession zones along riverbanks impose significant global social,economic,and ecological *** areas are particularly susceptible to *** inflict significant harm due to fluctuating water levels(Meng et al.,2023;Dai et al.,2021;Li et al.,2021).This,in turn,endangers the safety and accessibility of roads and waterways adjacent to rivers,and hydropower station and reservoir security(yan et al.,2022;Guo et al.,2020;Tang et al.,2017).

关键词： reservoir Landslide Ship

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Exogenous hydrogen sulfide delays the senescence of human umbilical vein endothelial cells by inhibiting p38 MAPK pathway

Exogenous hydrogen sulfide delays the senescence of human um...

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中国生理学会心血管生理学术研讨会

作者： hongna qi~(1,2),chengjie song~1,jie cui~1,lei liu~1,youjian qi~1,changdong yan~(1*) 1.department of physiology,xuzhou medical college 2.Institute of Cardiovascular Disease, xuzhou medical college,xuzhou Jiangsu 221002,China

Objective:To investigate whether exogenous application of HS would regulate human umbilical vein endothelial cells(HUVECs) senescence via p38 mitogen-activated protein kinase (MAPK) ***:Cultured human umbilical vein endothelial cells(HUVECs) until the tenth passage was considered as old *** hydrosulfide(NaHS)(0.1,1,10μmol/L), was replaced every 48 hours starting at the fourth passage which was considered as young group. The cell senescence was determined by theβ-galactosidase(SAβ-gal) positive rate of the cells. Apoptotic incidences were quantitatively determined by flow *** level of intracelluar HO was assayed according to chemical *** blot analyzed the expression of phospho-extracellular signal-regulated kinase(p-ERKl/2),phospho-c-Jun N-terminal kinase (p-JNKl/2) and *** expression of Bcl-2/Bax,cyt-c and caspase-9/3 was determined by western blot after NaHS(10μmol/L) and SB203580(10μmol/L),a specific p38 MAPK inhibitor,co-incubated every 48 hours starting from the fourth passage to the tenth passage which was considered as SB ***:Compared with young group,the SAβ-gal positive rate of the cells in the old group was significantly *** percentage of SAβ-gal positive cells decreased in NaHS group,reaching its minimum at 10μmol/L NaHS(P10μumol/L NaHS,the rate of apoptosis and the level of HO in the cell culture apparently diminished(P10μmol/L) group(P<0.05),however p-ERKl/2 and p-JNKl/2 protein expression had no significant *** blot analysis showed that the expression of Bcl-2/Bax in SB group was lower than any other groups(P<0.05).Furthermore,cyt-c and caspase-9/3 protein levels were elevated in SB ***:Exogenous H2S delays senescence of HUVECs through decreasing the rate of apoptosis which was involving down-regulation of p38 MAPK and lessening the level of oxidative stress.

关键词： hydrogen sulfide senescence p38MAPK apoptosis oxidative stress

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