Jian Jun Yan

Multi-Source Land Cover Classification with an Integrated Feature Set in Mekong Basin

Jian Jun Yan, Xiaofei Mi, Zhigao Ma, Hongbo Zhu et autres

Large-area medium-resolution land cover classification is a key information for monitoring land use, human activity influence on ecological environments, etc. However, the existing land cover classification products lack insights of the utilization of multi-source data and regional characteristics, thus facing accuracy shackles. …

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Large-Scale Land Cover Mapping Framework Based on Prior Product Label Generation: A Case Study of Cambodia

Hongbo Zhu, Tao Yu, Xiaofei Mi, Jian Hua Yang et autres

Large-Scale land cover mapping (LLCM) based on deep learning models necessitates a substantial number of high-precision sample datasets. However, the limited availability of such datasets poses challenges in regularly updating land cover products. A commonly referenced method involves utilizing prior products (PPs) …

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Experimental analysis of acidizing in Weizhou X low permeability reservoir

Yi Zhang, Bin Zhang, Wei Feng, Hongjun Lü et autres

Abstract Aiming at the problem of increased water injection pressure and poor water injection effect during the water injection operation of Weizhou X offshore low permeability oil reservoir. The cause of clogging was clarified using cast thin section experiments, water quality compatibility …

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Author response for "Experimental analysis of acidizing in Weizhou X low permeability reservoir"

Yi Zhang, Bin Zhang, Feng Wei, Hongjun Lü et autres

A Multi-constraint and Multi-objective Allocation Model for Emergency Rescue in IoT Environment

Xinrun Xu, Zhanbiao Lian, Yurong Wu, Manying Lv et autres

Emergency relief operations are essential in disaster aftermaths, necessitating effective resource allocation to minimize negative impacts and maximize benefits. In prolonged crises or extensive disasters, a systematic, multi-cycle approach is key for timely and informed decision-making. Leveraging advancements in IoT and spatio-temporal …

Research and Application of Dual-Packer Single-Layer Volume Fracturing String with Pressure Drag

Jian Jun Yan, Wenchao Tian, Jing-bin Li

Cross-Domain Land Cover Classification of Remote Sensing Images Based on Full-Level Domain Adaptation

Yuke Meng, Zhanliang Yuan, Jian Dong Yang, Peizhuo Liu et autres

The use of remote sensing images for land cover classification is an important and challenging pixel-level classification task. However, the different distribution of the same land cover categories across different datasets, the accuracy of the classification is significantly reduced when a classification …

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Objective evaluation-based efficient learning framework for hyperspectral image classification

Xuming Zhang, Jian Jun Yan, Jia Tian, Wei Li et autres

Deep learning techniques with remarkable performance have been successfully applied to hyperspectral image (HSI) classification. Due to the limited availability of training data, earlier studies primarily adopted the patch-based classification framework, which divides images into overlapping patches for training and testing. However, …

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Objective Evaluation-based High-efficiency Learning Framework for Hyperspectral Image Classification

Xuming Zhang, Jian Jun Yan, Jia Tian, Wei Li et autres

Deep learning methods have been successfully applied to hyperspectral image (HSI) classification with remarkable performance. Because of limited labelled HSI data, earlier studies primarily adopted a patch-based classification framework, which divides images into overlapping patches for training and testing. However, this approach …

Seepage Model for Organic Slit Nanopores in Shale Gas Reservoirs Based on Molecular Simulation

Yi Zhang, Bin Zhang, Banghua Liu, Rui Wang et autres

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Pore Throat Distributions and Movable Fluid Occurrences in Different Diagenetic Facies of Tight Sandstone Reservoirs: A Case Study of the Triassic Chang 6 Reservoirs in Wuqi Area, Ordos Basin, China

Pan Li, Zhen Wang, Hui Lin Gao, Qiang Li et autres

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Polyamine pathways interconnect with GABA metabolic processes to mediate the low-temperature response in plants

Mengyun Xu, Qinwen Yang, Genxiang Bai, Ping Li et autres

Low temperatures are among the most commonly encountered environmental conditions that adversely affect plant growth and development, leading to substantial reductions in crop productivity. Plants have accordingly evolved coordinated mechanisms that confer low-temperature adaptation and resistance. The plant metabolic network, including polyamines …

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