Search Results - Qun Sun
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Incremental Updating of 3D Indoor Data Considering Topological Linkages
Published 2025-07-01Get full textIndoor location-based services and applications are heavily dependent on the currentness of indoor data. Therefore, it is crucial to update indoor spatial information promptly and efficiently to ensure its relevance and reliability. Maintaining the topological consistency of geometric objects presen...
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Short-Term Prediction of Ship Heave Motion Using a PSO-Optimized CNN-LSTM Model
Published 2025-05-01Get full textWhen ships conduct offshore operations in the ocean, they are subject to disturbances from natural factors such as sea breezes and waves. These disturbances lead to movements detrimental to the ship’s stability, especially heave movement in the vertical direction, which profoundly impacts the safety...
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System Design and Experimental Study of a Four-Roll Bending Machine
Published 2025-06-01Get full textThis study addresses the urgent demand for high-precision manufacturing of curved components by developing a fully servo-driven multi-axis controlled four-roll bending machine. By integrating a modular symmetric roller system design with a distributed hierarchical motion control architecture, we ach...
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Selection for high quality pepper seeds by machine vision and classifiers
Published 2018-09-01Get full textThis research aimed to improve selection of pepper seeds for separating high-quality seeds from low-quality seeds. Past research has shown that seed vigor is significantly related to the seed color and size, thus several physical features were identified as candidate predictors of high seed quality....
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Discrimination of individual seed viability by using the oxygen consumption technique and headspace-gas chromatography-ion mobility spectrometry
Published 2023-03-01Get full textIdentifying and selecting high-quality seeds is crucial for improving crop yield. The purpose of this study was to improve the selection of crop seeds based on separating vital seeds from dead seeds, by predicting the potential germination ability of each seed, and thus improving seed quality. The m...
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CrylAb rice does not impact biological characters and functional response of Cyrtorhinus lividipennis preying on Nilaparvata lugens eggs
Published 2015-10-01Get full textOne concern about the use of transgenic plants is their potential risk to natural enemies. In this study, using the eggs of the rice brown planthopper, Nilaparvata lugens, as a food source, we investigated the effects of Cry1Ab rice on the biological characteristics and functional response of an imp...
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Improving the bacillomycin L production in Bacillus amyloliquefaciens by atmospheric and room-temperature plasma combined with Box-Behnken design
Published 2025-06-01Get full textAbstract Bacillomycin L, a cyclic lipopeptide derived from Bacillus amyloliquefaciens, has great potential for developing biochemical phytofungicides. In this study, a mutant M86 with high anti-Botrytis cinerea activity was obtained by atmospheric and room-temperature plasma (ARTP) mutagenesis from...
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Projecting lyme disease risk in the United States: A machine learning approach integrating environmental, socioeconomic and vector factors
Published 2025-12-01Get full textObjective: Lyme disease, caused by Borrelia burgdorferi and transmitted by blacklegged ticks (Ixodes species), is the most common vector-borne disease in the United States. Its spatiotemporal dynamics are influenced by environmental and socioeconomic factors, yet the impacts of the COVID-19 pandemic...
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