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268 results on '"Liu, Yu-Tao"'

3. NeUDF: Leaning Neural Unsigned Distance Fields with Volume Rendering

Author

Liu, Yu-Tao, Wang, Li, yang, Jie, Chen, Weikai, Meng, Xiaoxu, Yang, Bo, and Gao, Lin

Subjects
Computer Science - Computer Vision and Pattern Recognition, Computer Science - Graphics
Abstract

Multi-view shape reconstruction has achieved impressive progresses thanks to the latest advances in neural implicit surface rendering. However, existing methods based on signed distance function (SDF) are limited to closed surfaces, failing to reconstruct a wide range of real-world objects that contain open-surface structures. In this work, we introduce a new neural rendering framework, coded NeUDF, that can reconstruct surfaces with arbitrary topologies solely from multi-view supervision. To gain the flexibility of representing arbitrary surfaces, NeUDF leverages the unsigned distance function (UDF) as surface representation. While a naive extension of an SDF-based neural renderer cannot scale to UDF, we propose two new formulations of weight function specially tailored for UDF-based volume rendering. Furthermore, to cope with open surface rendering, where the in/out test is no longer valid, we present a dedicated normal regularization strategy to resolve the surface orientation ambiguity. We extensively evaluate our method over a number of challenging datasets, including DTU}, MGN, and Deep Fashion 3D. Experimental results demonstrate that nEudf can significantly outperform the state-of-the-art method in the task of multi-view surface reconstruction, especially for complex shapes with open boundaries., Comment: Accepted by CVPR 2023, 24 pages, project: http://geometrylearning.com/neudf/

Published
2023

8. Allelic Context of EGFR C797X–Mutant Lung Cancer Defines Four Subtypes With Heterogeneous Genomic Landscape and Distinct Clinical Outcomes

Author

Lu, Chang, Wei, Xue-Wu, Wang, Zhen, Zhou, Zhen, Liu, Yu-Tao, Zheng, Di, He, Yong, Xie, Zhan-Hong, Li, Yong, Zhang, Yan, Zhang, Yi-Chen, Huang, Zi-Jian, Mei, Shi-Qi, Liu, Jia-Qi, Guan, Xu-Hui, Deng, Yu, Chen, Zhi-Hong, Tu, Hai-Yan, Xu, Chong-Rui, Chen, Hua-Jun, Zhong, Wen-Zhao, Yang, Jin-Ji, Zhang, Xu-Chao, Mok, Tony S.K., Wu, Yi-Long, and Zhou, Qing

Published
2024
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15. Study on Durability and Compression Behaviors of BFRP Bars under Seawater Deterioration and Constraint Condition.

Author

Chen, Shuang, Guan, Ji-Wen, Chen, Hong-Mei, and Liu, Yu-Tao

Subjects
SEAWATER, ARTIFICIAL seawater, SEAWATER corrosion, SCANNING electron microscopy, DURABILITY, FAILURE mode & effects analysis
Abstract

The microstructural characterization of Basalt Fiber Reinforced Polymer (BFRP) bars under seawater deterioration (dry–wet cycles modes and immersion modes) was performed by scanning electron microscopy (SEM) and X-ray energy spectrum analyzer (EDS). Then, uniaxial compressive tests were carried out on the corroded BFRP bars to explore the effects of different corrosion periods, diameters, and slenderness ratios on the degradation of compressive performance and durability in seawater corrosion and constraint condition. The results showed that dry–wet cycles of seawater caused patchy pitting on the surfaces of BFRP bar, and white granular foams adhered to the bar surface after seawater immersion. The internal microstructure of BFRP bar was deteriorated, and the bonding force between the fiber and resin was reduced with the increase of dry–wet cycles. Five failure modes of BFRP bars occurred in uniaxial compressive tests, namely crushing failure, transverse cracking failure, shearing failure, splitting failure, and buckling failure. The increase of corrosion cycles significantly decreased the bearing capacity and compressive strength, but had little effect on the compressive elastic modulus of BFRP bars. The dry–wet cycles of seawater was more harmful to the mechanical properties of BFRP bars than immersion corrosion. Meanwhile, the mechanical properties of BFRP bars were affected by their diameters and slenderness ratios to some extent. [ABSTRACT FROM AUTHOR]

Published
2024
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16. Allelic Context of EGFR C797X–Mutant Lung Cancer Defines Four Subtypes With Heterogeneous Genomic Landscape and Distinct Clinical Outcomes

Author

Lu, Chang, primary, Wei, Xue-Wu, additional, Wang, Zhen, additional, Zhou, Zhen, additional, Liu, Yu-Tao, additional, Zheng, Di, additional, He, Yong, additional, Xie, Zhan-Hong, additional, Li, Yong, additional, Zhang, Yan, additional, Zhang, Yi-Chen, additional, Huang, Zi-Jian, additional, Mei, Shi-Qi, additional, Liu, Jia-Qi, additional, Guan, Xu-Hui, additional, Deng, Yu, additional, Chen, Zhi-Hong, additional, Tu, Hai-Yan, additional, Xu, Chong-Rui, additional, Chen, Hua-Jun, additional, Zhong, Wen-Zhao, additional, Yang, Jin-Ji, additional, Zhang, Xu-Chao, additional, Mok, Tony S.K., additional, Wu, Yi-Long, additional, and Zhou, Qing, additional

Published
2023
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20. Allelic Context of EGFRC797X–Mutant Lung Cancer Defines Four Subtypes With Heterogeneous Genomic Landscape and Distinct Clinical Outcomes

Author

Lu, Chang, Wei, Xue-Wu, Wang, Zhen, Zhou, Zhen, Liu, Yu-Tao, Zheng, Di, He, Yong, Xie, Zhan-Hong, Li, Yong, Zhang, Yan, Zhang, Yi-Chen, Huang, Zi-Jian, Mei, Shi-Qi, Liu, Jia-Qi, Guan, Xu-Hui, Deng, Yu, Chen, Zhi-Hong, Tu, Hai-Yan, Xu, Chong-Rui, Chen, Hua-Jun, Zhong, Wen-Zhao, Yang, Jin-Ji, Zhang, Xu-Chao, Mok, Tony S.K., Wu, Yi-Long, and Zhou, Qing

Abstract

EGFRC797X (C797S or C797G) mutation is the most frequent on-target mechanism of resistance to osimertinib. The hypothesis that the allelic context of C797X/T790M has implications for treatment is on the basis of sporadic reports and needs validation with larger cohorts.

Published
2024
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22. Large Area High-Resolution 3D Mapping of the Von Kármán Crater: Landing Site for the Chang’E-4 Lander and Yutu-2 Rover

Author

Liu, Yu Tao, Jan-Peter Muller, Susan J. Conway, Siting Xiong, Sebastian H. G. Walter, and Bin

Subjects
3D mapping, topography, deep learning, digital terrain model, Moon, lunar landing site, LRO, NAC, Chang’E-2, Chang’E-4, MADNet
Abstract

We demonstrate the creation of a large area of high-resolution (260 × 209 km2 at 1 m/pixel) DTM mosaic from the Lunar Reconnaissance Orbiter Camera (LROC) Narrow Angle Camera (NAC) images over the Chang’E-4 landing site at Von Kármán crater using an in-house deep learning-based 3D modelling system developed at University College London, called MADNet, trained with lunar orthorectified images and digital terrain models (DTMs). The resultant 1 m DTM mosaic is co-aligned with the Chang’E-2 (CE-2) and the Lunar Orbiter Laser Altimeter (LOLA)—SELenological and Engineering Explorer (SELENE) blended DTM product (SLDEM), providing high spatial and vertical congruence. In this paper, technical details are briefly discussed, along with visual and quantitative assessments of the resultant DTM mosaic product. The LROC NAC MADNet DTM mosaic was compared with three independent DTM datasets, and the mean differences and standard deviations are as follows: PDS photogrammetric DTM at 5 m grid-spacing had a mean difference of −0.019 ± 1.09 m, CE-2 DTM at 20 m had a mean difference of −0.048 ± 1.791 m, and SLDEM at 69 m had a mean difference of 0.577 ± 94.940 m. The resultant LROC NAC MADNet DTM mosaic, alongside a blended LROC NAC and CE-2 MADNet DTM mosaic and a separate LROC NAC, orthorectified image mosaic, are made publicly available via the ESA planetary science archive’s guest storage facility.

Published
2023
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23. NeUDF: Learning Neural Unsigned Distance Fields With Volume Rendering

Author

Liu, Yu-Tao, Wang, Li, Yang, Jie, Chen, Weikai, Meng, Xiaoxu, Yang, Bo, and Gao, Lin

Abstract

Multi-view shape reconstruction has achieved impressive progresses thanks to the latest advances in the neural implicit rendering. However, existing methods based on signed distance function (SDF) are limited to closed surfaces, failing to reconstruct a wide range of real-world objects that contain open-surface structures. In this work, we introduce a new neural rendering framework, coded NeUDF, that can reconstruct surfaces with arbitrary topologies solely from multi-view supervision. To gain the flexibility of representing arbitrary surfaces, NeUDF leverages the unsigned distance function (UDF) as surface representation. While a naive extension of SDF-based neural renderer cannot scale to UDF, we formalize the rules of neural volume rendering for open surface reconstruction (e.g., self-consistent, unbiased, occlusion-aware), and derive a dedicated rendering weight function specially tailored for UDF. Furthermore, to cope with open surface rendering, where the in/out test is no longer valid, we present a dedicated normal regularization strategy to resolve the surface orientation ambiguity. We extensively evaluate our method over a number of challenging datasets, including two typical open surface datasets MGN (Bhatnagar et al., 2019) and Deep Fashion 3D (Zhu et al., 2020). Experimental results demonstrate that NeUDF can significantly outperform the state-of-the-art methods in the task of multi-view surface reconstruction, especially for the complex shapes with open boundaries.

Published
2024
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25. Silencing of V‐ATPase‐E gene causes midgut apoptosis of Diaphorina citri and affects its acquisition of Huanglongbing pathogen.

Author

Guo, Chang‐Fei, Qiu, Jun‐Hong, Hu, Yu‐Wei, Xu, Pei‐Ping, Deng, Ying‐Qi, Tian, Ling, Wei, Yi‐Yun, Sang, Wen, Liu, Yu‐Tao, and Qiu, Bao‐Li

Subjects
GENE silencing, RNA interference, CITRUS greening disease, CANDIDATUS liberibacter asiaticus, AMINO acid sequence, PARASITIC wasps
Abstract

The Asian citrus psyllid, Diaphorina citri Kuwayama, is among the most important pests of citrus. It is the main vector of the Huanglongbing (HLB) pathogen Candidatus Liberibacter asiaticus (CLas), which causes severe losses in citrus crops. Control of D. citri is therefore of paramount importance to reduce the spread of HLB. In this regard, using RNA interference (RNAi) to silence target genes is a useful strategy to control psyllids. In this study, using RNAi, we examined the biological functions of the V‐ATPase subunit E (V‐ATP‐E) gene of D. citri, including its effect on acquisition of CLas. The amino acid sequence of V‐ATP‐E from D. citri had high homology with proteins from other insects. V‐ATP‐E was expressed at all D. citri life stages analyzed, and the expression level in mature adults was higher than that of teneral adults. Silencing of V‐ATP‐E resulted in a significant increase in mortality, reduced body weight, and induced cell apoptosis of the D. citri midgut. The reduced expression of V‐ATP‐E was indicated to inhibit CLas passing through the midgut and into the hemolymph, leading to a majority of CLas being confined to the midgut. In addition, double‐stranded RNA of D. citri V‐ATP‐E was safe to non‐target parasitic wasps. These results suggest that V‐ATP‐E is an effective RNAi target that can be used in D. citri control to block CLas infection. [ABSTRACT FROM AUTHOR]

Published
2023
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38. Survival and pretreatment prognostic factors for extensive‐stage small cell lung cancer: A comprehensive analysis of 358 patients

Author

Huang, Li‐Ling, primary, Hu, Xing‐Sheng, additional, Wang, Yan, additional, Li, Jun‐Ling, additional, Wang, Hong‐Yu, additional, Liu, Peng, additional, Xu, Jian‐Ping, additional, He, Xiao‐Hui, additional, Hao, Xue‐Zhi, additional, Jiang, Pei‐Di, additional, Liu, Yu‐Tao, additional, Luo, Jian, additional, Zhou, Sheng‐Yu, additional, Wang, Jin‐Wan, additional, Yang, Jian‐Liang, additional, Qin, Yan, additional, Yuan, Peng, additional, Lin, Lin, additional, and Shi, Yuan‐Kai, additional

Published
2021
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39. Generation of an induced pluripotent stem cell line (ZZUi020-A) from a patient with Parkinson’s disease harboring the intermediate-length GGC repeat expansions in the NOTCH2NLC gene

Author

Fan, Yu, primary, Liu, Fen, additional, Fan, Li-yuan, additional, Mao, Cheng-yuan, additional, Liu, Han, additional, Zhang, Chan, additional, Yuan, Yan-peng, additional, Yang, Jing, additional, Wang, Yan-lin, additional, Liu, Yu-tao, additional, Shi, Chang-he, additional, and Xu, Yu-ming, additional

Published
2021
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42. Design and process of ultra-precision drum roll lathe

Author

乔 政 Qiao Zheng, 刘玉涛 Liu Yu-tao, 吴言功 Wu Yan-gong, 王 波 Wang Bo, and 张 鹏 Zhang Peng

Subjects
Materials science, Process (computing), Mechanical engineering, Drum, Ultra precision, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2018

46. Icotinib as Adjuvant Treatment for Stage II-IIIA Lung Adenocarcinoma Patients with EGFR Mutation (ICWIP Study): Study Protocol for a Randomised Controlled Trial

Author

Liu, Yu-Tao, primary, Hao, Xue-Zhi, additional, Liu, De-Ruo, additional, Cheng, Gang, additional, Zhang, Shu-Cai, additional, Xiao, Wen-Hua, additional, Hu, Yi, additional, Liu, Jun-Feng, additional, He, Ming, additional, Ding, Cui-Min, additional, Zhang, Li, additional, Wang, Jun, additional, Li, Hui, additional, Dong, Gui-Lan, additional, Zhi, Xiu-Yi, additional, Li, Jian, additional, and Shi, Yuan-Kai, additional

Published
2020
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47. ARSA gene variants and Parkinson’s disease

Author

Fan, Yu, primary, Mao, Cheng-yuan, primary, Dong, Ya-li, primary, Shen, Si, primary, Zhang, Qi-meng, primary, Yao, Da-bao, primary, Liu, Fen, primary, Li, Meng-jie, primary, Hu, Xin-chao, primary, Wang, Tai, primary, Liu, Yu-tao, primary, Liu, Han, primary, Wang, Yan-lin, primary, Yuan, Yan-peng, primary, Zhang, Chan, primary, Yang, Jing, primary, Shi, Chang-he, primary, and Xu, Yu-ming, primary

Published
2020
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50. Transition‐Metal‐Free Intermolecular Chlorodifluoromethylthiolation of Alkenes and Alkynes.

Author

Yuan, Wan‐Qiang, Guo, Li‐Yun, Liu, Yu‐Tao, Li, Qing, Shi, Jie, and Pan, Fei

Subjects
ALKYNES, ELECTROPHILES, SUSTAINABLE chemistry, FUNCTIONAL groups, ALKENES
Abstract

A general and convenient method for the direct transition‐metal‐free intermolecular chlorodifluoromethylthiolation of a variety of unactivated alkenes and alkynes has been described. This methodology exhibits good functional group tolerance and is operationally simple. Mechanistic studies indicated an electrophilic substitution mechanism, and the strong electrophilic difluoromethylthiolating reagent HCF2SCl was generated in situ under standard reaction conditions. The developed protocol fulfils the requirements of sustainable and green chemistry. [ABSTRACT FROM AUTHOR]

Published
2021
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