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10篇 您的检索式:作者名="Yunqi Tang"
    题名 作者 年代 出处 被引量
1Construction of highly-stable graphene hollow nanospheres and their application in supporting Pt as effective catalysts for oxygen reduction reaction显示文摘The construction and surface modification of three-dimensional(3D) graphene structures have been recognized as effective ways to prepare high-performance graphene-based composites in energy-related applications. Herein, on the basis of well-defined morphology and efficient electron conduction, the 3D highly-stable graphene hollow nanospheres have been synthesized by using sacrificial template method. The asprepared 3D graphene nanospheres exhibit superior mechanical stability, electrochemical stability, and strong hydrophobicity, which may accelerate the emission of H2O in acidic medium-based ORR. Accordingly, the 3D highly-stable graphene nanospheres are used to confine tiny Pt nanoparticles(3Dr-GO@Pt HNSs) for ORR in acidic medium, exhibiting superior activity with 4-electron-transfered pathway. Meanwhile,dramatically improved durability are achieved in terms of both ORR mass activity and electrochemically surface area compared to those of commercial Pt/C.Huaifang Zhang Jubing Zhang Kunhao Liu Yunqi Zhu Xiaoyu Qiu Dongmei Sun Yawen Tang 2019Green Energy & Environment2019,4,3:1
2Effects of rehydration of alumina on its structural properties, surface acidity, and HDN activity o显示文摘Li Guangci Liu Yunqi Tang Zhe 2012Applied Catalysis A:General2012,,:1
3Fabrication of high-surface-area 7-alumina by thermal decomposition of AACH precursor using low-temperature solid-state reaction 显示文摘HU Xiaofu LIU Yunqi TANG Zhe 2012Material Research Bulletin2012,47,12:1
4Fabrication of high-surface-areaγ-alumina by thermal decomposition of AACH precursor using low-temperature solid-state reaction显示文摘Hu Xiaofu Liu Yunqi Tang Zhe 2012Mater Res Bull2012,47,12:1
5An Error-Correcting Code-Based Robust Watermarking Scheme for Stereolithographic Files显示文摘Stereolithographic(STL)files have been extensively used in rapid prototyping industries as well as many other fields as watermarking algorithms to secure intellectual property and protect three-dimensional models from theft.However,to the best of our knowledge,few studies have looked at how watermarking can resist attacks that involve vertex-reordering.Here,we present a lossless and robust watermarking scheme for STL files to protect against vertexreordering attacks.Specifically,we designed a novel error-correcting code(ECC)that can correct the error of any one-bit in a bitstream by inserting several check digits.In addition,ECC is designed to make use of redundant information according to the characteristics of STL files,which introduces further robustness for defense against attacks.No modifications are made to the geometric information of the three-dimensional model,which respects the requirements of a highprecision model.The experimental results show that the proposed watermarking scheme can survive numerous kinds of attack,including rotation,scaling and translation(RST),facet reordering,and vertex-reordering attacks.Zhuorong Li Huawei Tian Yanhui Xiao Yunqi Tang Anhong Wang 2021Computer Systems Science & Engineering2021,37,5:0
6Space-time evolution rules study on acoustic emission location in rock under cyclic loading显示文摘An acoustic emission(AE)location experiment was performed on sandstone using an advanced AE test system.The space-time evolution rule regarding damage was analyzed under cyclic loading as well as AE.The results show that AE on static loading process is consistent with the damage evolution rule of compression and the elastic-plastic deformation phase;at the beginning of cyclic loading with low duration time and energy,AE events came from a small crack.The location result showed that most events occurred in the core zone forming at the static loading process,and the location points changed slowly.AE energy changed little during the metaphase of cyclic process.There was a modest increase of location points in every cycle.The tendency of steady development could be predicted from the AE location events.At the end of each cyclic loading,the quantity of AE events and energy increased quite rapidly,reaching a maximum at the last cycle.AE events had high energy and duration time.Location events changed quite rapidly and assembled and linked continuously in the core zone.At the same time,they expanded to the top of specimen.A macroscopic crack finally formed.In the postfailure process,some AE events still existed due to fracturing of gliding friction.Owing to the inner stress balance of rock even after loading stopped,minor AE events still occurred.Jiang XU Xiaojun TANG Shuchun LI Yunqi TAO Yongdong JIANG 2009Frontiers of Structural and Civil Engineering2009,3,4:0
7Multimodal Biometric Fusion Algorithm Based on Ranking Partition Collision Theory显示文摘Score-based multimodal biometric fusion has been shown to be successful in addressing the problem of unimodal techniques’vulnerability to attack and poor performance in low-quality data.However,difficulties still exist in how to unify the meaning of heterogeneous scores more effectively.Aside from the matching scores themselves,the importance of the ranking information they include has been undervalued in previous studies.This study concentrates on matching scores and their ranking information and suggests the ranking partition collision(RPC)theory from the standpoint of the worth of scores.To meet both forensic and judicial needs,this paper proposes a method that employs a neural network to fuse biometrics at the score level.In addition,this paper constructs a virtual homologous dataset and conducts experiments on it.Experimental results demonstrate that the proposed method achieves an accuracy of 100%in both mAP and Rank1.To show the efficiency of the proposed method in practical applications,this work carries out more experiments utilizing real-world data.The results show that the proposed approach maintains a Rank1 accuracy of 99.2%on the million-scale database.It offers a novel approach to fusion at the score level.Zhuorong Li Yunqi Tang 2023Machine Intelligence Research2023,20,6:0
8Synthesis of Two-Dimensional C–C Bonded Truxene-Based Covalent Organic Frameworks by Irreversible Brønsted Acid-Catalyzed Aldol Cyclotrimerization显示文摘The synthesis of new C–C bonded two-dimensional(2D)covalent organic frameworks(COFs)is highly desirable.Here,a simple but effective synthetic strategy has been developed using an irreversible Brønsted acid-catalyzed aldol cyclotrimerization reaction by virtue of truxene as a linkage.Nonolefin C–C bonded 2D truxene-based covalent organic frameworks(Tru-COFs)were constructed by polymerization of 1,3,5-triindanonebenzene(TDB).The structure formation was confirmed by wide-angle X-ray scattering,Fourier-transform infrared spectroscopy,and solid-state ^(13)C CP/MAS NMR.The results showed that the Tru-COFs were porous(645 m^(2)/g)and chemically stable.Benzyl methylene in conjugated Tru-COFs more effectively produced photoinduced radicals than the model truxene compound.Due to the radical photoresponsiveness,Tru-COFs were efficient catalysts for photocatalytic oxidation of sulfides.We expect that this will provide a new synthetic methodology to obtain C–C bonded functional 2D COFs.Qingsong Zhang Yunlong Sun Haijing Li Kun Tang Yu-Wu Zhong Dong Wang Yunlong Guo Yunqi Liu 2022Research2022,,1:0
9Recent progress on rapid diagnosis of COVID-19 by point-of-care testing platforms显示文摘The outbreak of COVID-19 has drawn great attention around the world.SARS-CoV-2 is a highly infectious virus with occult transmission by many mutations and a long incubation period.In particular,the emergence of asymptomatic infections has made the epidemic even more severe.Therefore,early diagnosis and timely management of suspected cases are essential measures to control the spread of the virus.Developing simple,portable,and accurate diagnostic techniques for SARS-CoV-2 is the key to epidemic prevention.The advantages of point-of-care testing technology make it play an increasingly important role in viral detection and screening.This review summarizes the point-of-care testing platforms developed by nucleic acid detection,immunological detection,and nanomaterial-based biosensors detection.Furthermore,this paper provides a prospect for designing future highly accurate,cheap,and convenient SARS-CoV-2 diagnostic technology.Ya-Nan Tang Dingding Jiang Xuejun Wang Yunqi Liu Dacheng Wei 2024Chinese Chemical Letters2024,35,3:0
10Synthesis of Two-Dimensional C–C Bonded Truxene-Based Covalent Organic Frameworks by Irreversible Brønsted Acid-Catalyzed Aldol Cyclotrimerization显示文摘The synthesis of new C–C bonded two-dimensional(2D)covalent organic frameworks(COFs)is highly desirable.Here,a simple but effective synthetic strategy has been developed using an irreversible Brønsted acid-catalyzed aldol cyclotrimerization reaction by virtue of truxene as a linkage.Nonolefin C–C bonded 2D truxene-based covalent organic frameworks(Tru-COFs)were constructed by polymerization of 1,3,5-triindanonebenzene(TDB).The structure formation was confirmed by wide-angle X-ray scattering,Fourier-transform infrared spectroscopy,and solid-state^(13)C CP/MAS NMR.The results showed that the Tru-COFs were porous(645 m^(2)/g)and chemically stable.Benzyl methylene in conjugated Tru-COFs more effectively produced photoinduced radicals than the model truxene compound.Due to the radical photoresponsiveness,Tru-COFs were efficient catalysts for photocatalytic oxidation of sulfides.We expect that this will provide a new synthetic methodology to obtain C–C bonded functional 2D COFs.Qingsong Zhang Yunlong Sun Haijing Li Kun Tang Yu-Wu Zhong Dong Wang Yunlong Guo Yunqi Liu 2021Research2021,,1:0
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