Results 11 to 20 of about 24,415 (312)

Ecological vulnerability assessment based on remote sensing ecological index (RSEI): A case of Zhongxian County, Chongqing

open access: yesFrontiers in Environmental Science, 2023
The ecological vulnerability evaluation index was established through Normalized Difference Vegetation Index (NDVI), Wetness (WET), Normalized Difference Build-up and Soil Index (NDBSI) and Land Surface Temperature (LST) indicators, comprehensively ...
Guoxin Lan   +12 more
doaj   +1 more source

Study on mechanical properties and fracture surface characteristics of argillaceous sandstone under different stress paths

open access: yesScientific Reports, 2022
To study the differences in mechanical properties and failure characteristics of underground chambers surrounding rock under different stress conditions, triaxial loading and unloading tests were carried out on argillaceous sandstone.
Tianzhu Huang   +5 more
doaj   +1 more source

Exploring the Importance and Social Status of "laoshi" as a Greeting Used by Chinese Students to Address Their Teachers [PDF]

open access: yesInternational Journal of Chinese Language Teaching, 2021
In China, “teacher”, as an honorific, represents a paragon of knowledge and virtue, a parent, as well as a symbol of great importance and high status, standing alongside Heaven, Earth, Monarch and Parent.
Xiaoqiong Hu, Mingzhu Qin, Pan Qi
doaj   +1 more source

Identification of potential genes correlated with breast cancer metastasis and prognosis

open access: yesAll Life, 2022
We aimed to screen, via bioinformatics analyses, potential gene markers related to BC metastasis and prognosis. A gene expression dataset (GSE102818) and relevant clinical information were downloaded from the GEO database and TCGA, respectively.
Chao Tan   +5 more
doaj   +1 more source

Global exponential convergence of delayed inertial Cohen–Grossberg neural networks

open access: yesNonlinear Analysis, 2023
In this paper, the exponential convergence of delayed inertial Cohen–Grossberg neural networks (CGNNs) is studied. Two methods are adopted to discuss the inertial CGNNs, one is expressed as two first-order differential equations by selecting a variable ...
Yanqiu Wu   +4 more
doaj   +1 more source

Study on the mechanical properties of unloading damaged sandstone under cyclic loading and unloading

open access: yesScientific Reports, 2023
To reveal the mechanical properties of rocks under stress disturbance and unloading confining pressure, conventional triaxial compression tests, triaxial compression tests on unloading damaged sandstone, and cyclic loading and unloading tests on ...
Hengbin Zhang   +4 more
doaj   +1 more source

The complete mitochondrial genome of the hybrid sturgeon of Huso dauricus (♀) × Acipenser schrenckii (♂)

open access: yesMitochondrial DNA. Part B. Resources, 2017
The complete mitochondrial genome sequence of the hybrid of Huso dauricus (♀) × Acipenser schrenckii (♂) is described in this study. The 16,693bp long circular molecule consisted of 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and a control ...
Xueqing Liu   +5 more
doaj   +1 more source

A full duplex FSO transmission system using RZ-4PAM downlink signals with 67% duty cycle and AMI uplink signals [PDF]

open access: yesITM Web of Conferences, 2022
To improve the transceiver quality of Free Space Optical (FSO) system and ensure that user access is feasible the network, a high-speed full-duplex 100 meters FSO transmission scheme using 67% duty cycle RZ-4PAM downlink and alternative mark inversion ...
Yu Ni   +13 more
doaj   +1 more source

An optical access scheme with 1.25Gbit/s NRZ downstream signals over 6GHz subcarrier for next generation mobile systems application [PDF]

open access: yesITM Web of Conferences, 2022
In order to solve the problem of network frequency resource congestion from the central office (CS) to the base station (BS) in sixth generation (6G) mobile communication systems, we design a passive optical network (PON) access scheme.
Yang Qiming   +13 more
doaj   +1 more source

Rural imaginaries in China's Three Gorges region

open access: yesJournal of Rural Studies, 2023
In China, “rural” can signal backwardness, poverty, remoteness, and inferiority or, alternatively, a kind of utopia or idyll – an escape from urban pressures. Representations on screen can contribute to shaping an expectation of what the rural should be and thus play a role in facilitating interventionist policies and marginalising certain groups of ...
Zhen, N, Rogers, S, Wilmsen, B
openaire   +2 more sources

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