Ning Li

An Efficient Pyramid Transformer for Remote Sensing Image Object Detection

Zheng Wu, Qixuan Wang, Haochen Shi, Ning Li

cn (code pays fourni par la source)

A cross-view contrastive learning-based spammer group detection algorithm for heterogeneous networks

Qi Zhang, Shujuan Ji, Dickson K.W. Chiu, Ning Li et autres

Abstract Malicious sellers frequently collaborate with spammers to fabricate reviews for promoting their products. These spammers act strategically in groups and have even formed black-and-gray industry chains. Researchers have proposed Frequent Item Mining-based, review burst-based, and graph-based schemes for spammer group detection. …

cn, hk (code pays fourni par la source)

Pore-scale modeling of complex reacting flow by cross-linked polymers in porous media

Yang Xu, Weijun Shen, Jianchun Xu, Zhongcheng Li et autres

Cross-linked polymer gels are widely employed as deep profile control agents to enhance oil recovery, effectively mitigating channeling and improving sweep efficiency in heterogeneous reservoirs. However, the underlying mechanisms coupling cross-linking reactions, transport processes, and subsequent water flooding—particularly at the pore scale—remain …

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Flow induced acoustic characteristics analysis of propulsion pump by indirect acoustic variable method and FEM

Zhengchuan Zhang, Bo Gong, Tao Chen, Ning Li et autres

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Numerical simulation study of acoustic source characteristics of liquid level monitor based on infrasound waves

Xinyuan Wu, Jiaoyun Xu, Ning Li

Abstract To investigate the sound source characteristics of infrasound waves generated during the operation of the gas explosion liquid level monitoring instrument, with a focus on the aerodynamic noise produced by the monitoring device, a mixed numerical method was used to simulate …

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Influence of cavitation on vortical structures and energy loss in a waterjet pump

Bo Gong, Chao Feng, Ning Li, Xiaoping Ouyang et autres

Cavitation-induced vortex and energy loss are critical topics in the field of hydraulic machinery. Through a combination of experimental and numerical analysis, this paper investigates how blade loading affects vortical structures and energy loss during cavitation in a waterjet pump. The flow …

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Numerical investigation of the effect of blade tip loading distribution on tip leakage vortex characteristics in a waterjet pump

Bo Gong, Huailun Zhu, Xiaohang Chen, Ning Li et autres

Abstract The blade tip leakage vortex (TLV) is a common concern for waterjet pump. The TLV are closely related to the load distribution at the blade tip. This paper aims at to investigate the relationship between blade tip load distribution and TLV …

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High Efficiency Inference Accelerating Algorithm for NOMA-based Mobile Edge Computing

Xin Yuan, Ning Li, Tuo Zhang, Mu‐Qing Li et autres

Splitting the inference model between device, edge server, and cloud can improve the performance of EI greatly. Additionally, the non-orthogonal multiple access (NOMA), which is the key supporting technologies of B5G/6G, can achieve massive connections and high spectrum efficiency. Motivated by the …

A Novel Fault Diagnosis Based on FFT-1DCNN

Zhengran Zhang, Ning Li, Chaoping Zang, Ning Yuan et autres

Intelligent fault diagnosis of rotating machinery has been an important topic in mechanical fault research. Due to the difficulty of manual diagnosis in providing timely and accurate results, convolutional neural networks (CNNs) have been widely used for fault diagnosis. However, some existing …

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Parallel Personal Protective Equipment Recognition Network Based On Multimodal Fusion

Ning Yuan, Ning Li, Haiyang Qian, Zhengran Zhang et autres

The emergence of the Omicron variant in February 2022 resulted in widespread challenges in Shanghai, necessitating proper monitoring of Personal Protective Equipment (PPE) in mobile cabin hospitals for staff and patient safety. Camera-based PPE approaches offer effective monitoring for compliance and safety …

cn, gb (code pays fourni par la source)

MonoDet-K: A Monocular 3D Object Detector on BEV with Keypoint Regression

Haiyang Qian, Ning Li, Huiyu Zhou, Ning Yuan et autres

Autonomous driving necessitates solving the challenging task of monocular 3D object detection, where the goal is to infer accurate 3D predictions solely from a single 2D image. Existing approaches typically rely on conventional 2D object detectors to localize objects based on their …

cn, gb (code pays fourni par la source)

Experimental investigation of characteristics of tip leakage vortex cavitation-induced vibration of a pump

Bo Gong, Zhengchuan Zhang, Chao Feng, Junlian Yin et autres

cn (code pays fourni par la source)