Results 51 to 60 of about 46,780 (128)

Predicting intermediate wavelength depth using a deep neural network combined with gravity data in the Sea of Japan

International Journal of Digital Earth
Influenced by various geophysical factors, gravity and bathymetry exhibit significant correlations only at certain intermediate wavelengths. In this study, a deep neural network (DNN) combined with multi-source gravity data was used to recovery the ...
Dechao An, Wei Feng, Xiaodong Chen, Mingzhi Sun, Zeyuan Zhang, Meng Yang, Min Zhong   +6 more
doaj   +1 more source

An object detection method for bayberry trees based on an improved YOLO algorithm

International Journal of Digital Earth, 2023
To quickly detect and count the number of bayberry trees, this paper improves the YOLO-v4 model and proposes an optimal YOLO-v4 method for detecting bayberry trees based on UAV images.
Youliang Chen, Hanli Xu, Xiangjun Zhang, Peng Gao, Zhigang Xu, Xiaobin Huang   +5 more
doaj   +1 more source

AAMS-YOLO: enhanced farmland parcel detection for high-resolution remote sensing images

International Journal of Digital Earth
Detecting farmland parcels in high-resolution remote sensing images is challenging in smallholder farming systems in China, characterized by fragmented plots, irregular shapes, and varying scales.
Binyao Wang, Ya’nan Zhou, Weiwei Zhu, Li Feng, Jinke He, Tianjun Wu, Jiancheng Luo, Xin Zhang   +7 more
doaj   +1 more source

LOW FREQUENCY RAMAN SCATTERING IN MIXED Ga1-xAlxAs AND Ga1-xInxAs ALLOYS

, 1981
We report Raman studies of disorder induced scattering in the Ga1-xAlxAs and Ga1-xInxAs alloys. Previous results [1] are confirmed for the Ga1-xAlxAs system for a wider range of concentration. The role of the substituant is discussed through the analysis
R. Carles, J.B. Renucci, A. Zwick, M.A. Renucci, N. Saint-Cricq   +4 more
core   +1 more source

Mn diffusion in Ga1-xMnxAs/GaAs superlattices

, 2004
Ga1-xMnxAs/GaAs superlattices with Mn concentrations of 1% and 5% in the Ga1-xMnxAs layers and a GaAs spacer thickness of 4 and 60 GaAs monolayers have been studied by cross-sectional scanning tunneling microscopy.
Davidsson, Henrik,, Lundgren, Edvin,, Sadowski, Janusz,, Ouattara, Lassana,, Pacherova, O, Mikkelsen, Anders,, Lund University.   +6 more
core   +2 more sources

Decoupling characteristics of county-level land use carbon emissions and ecological environment quality at spatiotemporal scales: a case study of Shaanxi Province, China

International Journal of Digital Earth
A critical approach to achieving dual carbon targets is to maintain strong decoupling (SD) between land use carbon emissions (LUCE) and ecological environment quality (EEQ).
Jianfeng Li, Jichang Han, Yang Zhang, Siqi Liu, Huping Ye, Zhuoying Zhang   +5 more
doaj   +1 more source

Satellite and AI monitoring humanitarian crises in the Gaza Strip during the early stage of Israeli–Palestinian conflict

International Journal of Digital Earth
Extensive power shortages and airstrikes have plunged Gaza into a severe humanitarian crisis. Here, we introduce a rapid and efficient framework to evaluate the impacts of armed conflict and monitor potential humanitarian crises in the Gaza Strip based ...
Qikang Zhao, Xin Tan, Qingyan Meng, Liang Gao, Linlin Zhang, Xuewen Lei, Wenxu Shi, Mingming Zhu   +7 more
doaj   +1 more source

Magneto-transport and optical properties of diluted magnetic semiconductor Ga1-xMnxSb

, 2007
We have studied magneto-transport and optical properties of Ga1-xMnxSb crystals (x = 0.01, 0.02, 0.03 and 0.04) grown by horizontal Bridgman method. Negative magnetoresistance and anomalous Hall effect have been observed below 10K. Temperature dependence
Bhat, HL, Ganesan, K
core  

A novel remote sensing method to estimate pixel-wise lake water depth using dynamic water-land boundary and lakebed topography

International Journal of Digital Earth
Water depth, a fundamental characteristic of a lake, is important for understanding climatic, ecological, and hydrological processes. However, lake water depth data are still scarce due to the high cost of in-situ measurements and the limitations of ...
Yunzhe Lv, Li Jia, Massimo Menenti, Chaolei Zheng, Min Jiang, Jing Lu, Yelong Zeng, Qiting Chen, Ali Bennour   +8 more
doaj   +1 more source

Evaluation of remote sensing soil moisture data products with a new approach to analyse footprint mismatch with in-situ measurements

International Journal of Digital Earth
Global-scale surface soil moisture (SSM) products (e.g. SMAP L3.0, ASCAT V3.0, ESA/CCI V7.1 and GLDAS V2.2) are vital for applications in hydrology, climate variability, and agriculture. This study uses a new SSM evaluation approach by combining temporal
Qiuxia Xie, Li Jia, Massimo Menenti, Qiting Chen, Jingxue Bi, Yonghui Chen, Chunmei Wang, Xinju Yu   +7 more
doaj   +1 more source