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| 1 | Fingerprint segmentation based on an AdaBoost classifier显示文摘指纹分割是在一个自动指纹鉴定系统(AFIS ) 的最重要的预处理步之一。一条指纹的精确分割将极大地重要地减少下列处理的步,和大多数的计算时间,排除在前景的边界定位的许多假琐事。在这份报纸,一个新指纹分割算法被介绍。首先,二个新特征,块熵和块坡度熵,被建议。然后,一个 AdaBoost 分类器被设计基于这二个特征在前景和背景块之间区别,五其它通常使用了特征。分类错误率(犯错) 并且 McNemars 测试被用来评估我们的方法的表演。FVC2000, FVC2002 和 FVC2004 上的试验性的结果证明我们的方法超过在精确性和稳定性两个都在文学建议的另外的方法。 | Eryun LIU Heng ZHAO Fangfei GUO Jimin LIANG Jie TIAN | 2011 | Frontiers of Computer Science2011，5，2： | 4 |
| 2 | Clinical translation and challenges of biodegradable magnesium-based interference screws in ACL reconstruction显示文摘As one of the most promising fixators developed for anterior cruciate ligament(ACL)reconstruction,biodegradable magnesium(Mg)-based interference screws have gained increasing attention attributed to their appropriate modulus and favorable biological properties during degradation after surgical insertion.However,its fast degradation and insufficient mechanical strength have also been recognized as one of the major causes to limit their further application clinically.This review focused on the following four parts.Firstly,the advantages of Mg or its alloys over their counterparts as orthopaedic implants in the fixation of tendon grafts in ACL reconstruction were discussed.Subsequently,the underlying mechanisms behind the contributions of Mg ions to the tendon-bone healing were introduced.Thirdly,the technical challenges of Mg-based interference screws towards clinical trials were discussed,which was followed by the introduction of currently used modification methods for gaining improved corrosion resistance and mechanical properties.Finally,novel strategies including development of Mg/Titanium(Ti)hybrid fixators and Mg-based screws with innovative structure for achieving clinically customized therapies were proposed.Collectively,the advancements in the basic and translational research on the Mg-based interference screws may lay the foundation for exploring a new era in the treatment of the tendon-bone insertion(TBI)and related disorders. | Ying Luo Chao Zhang Jue Wang Fangfei Liu Kelvin Wingho Chau Ling Qin Jiali Wang | 2021 | Bioactive Materials2021，6，10： | 4 |
| 3 | High-temperature superconductivity in sulfur hydride evidenced by alternating-current magnetic susceptibility显示文摘The search for high-temperature superconductivity is one of the research frontiers in physics. In the sulfur hydride system, an extremely high T_c(~200 K) has been recently developed at pressure. However, the Meissner effect measurement above megabar pressures is still a great challenge. Here, we report the superconductivity identification of sulfur hydride at pressure, employing an in situ alternating-current magnetic susceptibility technique. We determine the superconducting phase diagram, finding that superconductivity suddenly appears at 117 GPa and Tcreaches 183 K at 149 GPa before decreasing monotonically with increasing pressure. By means of theoretical calculations, we elucidate the variation of T_c in the low-pressure region in terms of the changing stoichiometry of sulfur hydride and the further decrease in Tcowing to a drop in the electron–phonon interaction parameter λ. This work provides a new insight into clarifying superconducting phenomena and anchoring the superconducting phase diagram in the hydrides. | Xiaoli Huang Xin Wang Defang Duan Bertil Sundqvist Xin Li Yanping Huang Hongyu Yu Fangfei Li Qiang Zhou Bingbing Liu Tian Cui | 2019 | National Science Review2019，6，4： | 2 |
| 4 | Effect of calcium on the microstructure and mechanical properties of brazed joint using Ag–Cu–Zn brazing filler metal显示文摘 | Fangfei Sui Weimin Long Shengxin Liu Guanxing Zhang Li Bao Hao Li Yong Chen | 2013 | Materials and Design2013，，： | 2 |
| 5 | Existence and u- niqueness of solutions of second-order three-point boundary value problems with upper and lower solutions in the reversed order显示文摘 | LI Fangfei JIA Mei LIU Xiping | 2008 | Nonlinear Anal2008，68，8： | 1 |
| 6 | Modeling of quasi-grating sidewall corrugation in SOI microring add-drop filters显示文摘 | Tao Wang Ziyang Zhang Fangfei Liu Ye Tong Jing Wang Yue Tian Min Qiu Yikai Su | 2009 | Optics Communications2009，，17： | 1 |
| 7 | Existence and u- niqueness of solutions of second-order three-point boundary value problems with upper and lower solutions in the reversed order显示文摘 | LI Fangfei JIA Mei LIU Xiping | 2008 | Nonlinear Analysis2008，68，： | 1 |
| 8 | DPSK/FSK hybrid modulation format and analysis of its nonlinear performance显示文摘 | LIU Fangfei SU Yikai | 2008 | Journal of Lightwave Technology2008，26，3： | 1 |
| 9 | Factors influencing myogenic differentiation of adipose-derived stem cells and their application in muscle regeneration显示文摘Skeletal muscle regeneration mainly depends on muscle satellite cells;however,these cells are not sufficient for supporting repair and regeneration in volumetric muscle loss(VML),Duchenne muscular dystrophy,and other muscle injuries or muscle diseases.As such,much work has been conducted in recent years to search for myogenic stem cells.Adipose-derived stem cells(ADSCs)have a wide range of sources,rapid growth,and multi-directional differentiation potential,and have become vital candidates for muscle regeneration.Multiple factors influence the myogenic differentiation capacity of ADSCs.This paper reviews the regulatory aspects and possible factors that have been identified in recent years to affect myogenic differentiation of ADSCs.Based on these factors,gene editing,and perfusion concepts,a method was proposed to achieve maximal differentiation efficiency of ADSCs.This study focused on the application of ADSCs in muscle regeneration and disease.Based on the importance of myogenic differentiation of ADSCs for the repair and regeneration of muscle damage,this study provides a basis for future research surrounding the efficient induction of myogenic differentiation of ADSCs in vitro. | Na Liu Guanhuier Wang Yonghuan Zhen Yujia Shang Fangfei Nie Lingjuan Zhu Zhenmin Zhao Yang An | 2022 | Chinese Journal Of Plastic and Reconstructive Surgery2022，4，3： | 1 |
| 10 | EyeHealer:A large-scale anterior eye segment dataset with eye structure and lesion annotations显示文摘Anterior segment eye diseases account for a significant proportion of presentations to eye clinics worldwide,including diseases associated with corneal pathologies,anterior chamber abnormalities(e.g.blood or inflammation),and lens diseases.The construction of an automatic tool for segmentation of anterior segment eye lesions would greatly improve the efficiency of clinical care.With research on artificial intelligence progressing in recent years,deep learning models have shown their superiority in image classification and segmentation.The training and evaluation of deep learning models should be based on a large amount of data annotated with expertise;however,such data are relatively scarce in the domain of medicine.Herein,the authors developed a new medical image annotation system,called EyeHealer.It is a large-scale anterior eye segment dataset with both eye structures and lesions annotated at the pixel level.Comprehensive experiments were conducted to verify its performance in disease classification and eye lesion segmentation.The results showed that semantic segmentation models outperformed medical segmentation models.This paper describes the establishment of the system for automated classification and segmentation tasks.The dataset will be made publicly available to encourage future research in this area. | Wenjia Cai Jie Xu Ke Wang Xiaohong Liu Wenqin Xu Huimin Cai Yuanxu Gao Yuandong Su Meixia Zhang Jie Zhu Charlotte L.Zhang Edward E.Zhang Fangfei Wang Yun Yin Iat Fan Lai Guangyu Wang Kang Zhang Yingfeng Zheng | 2021 | Precision Clinical Medicine2021，4，2： | 0 |
| 11 | Regional Tourism Resilience under Crisis Impacts:The Cases of Yangtze River Delta and Pearl River Delta显示文摘Since the beginning of the 21st century,various crisis events have occurred frequently,inflicting substantial impacts on the tourism sector,which has garnered considerable scholarly and policy attention.Nevertheless,limited research has systematically explored tourism resilience at the urban scale,and there is a paucity of studies comparing regional differences in tourism resilience under distinct crisis scenarios and their underlying causes.Thus,this study focuses on the Yangtze River Delta and the Pearl River Delta,employing Martin’s regional economic resilience measurement method.It assesses the tourism resilience of the two regions under the impact of the 2008 financial crisis and the COVID-19 pandemic,subsequently visualizing the data results using ArcGIS software.The study also endeavors to unveil potential causes for disparities in urban tourism resilience.The main conclusions are as follows:Firstly,regions with higher economic development exhibit relatively weaker tourism resilience during economic crises,yet demonstrate comparatively stronger resilience during public crises.Secondly,distinct differentiations exist both between and within the Yangtze River Delta and the Pearl River Delta,primarily stemming from variations such as geographical positioning,tourism resource endowments,and industrial and economic structures,both regionally and within individual cities.Thirdly,the determination of regional tourism resilience is intricate and cannot be restricted to a single dimension;multidimensional indicators better encapsulate the essence of regional tourism resilience. | Yi Liu Liaofan Chen Fangfei Han Tong Zhang | 2023 | Journal of Geographical Research2023，6，4： | 0 |
| 12 | Synthesis and Electrochemical Properties of a Novel Poly(ether sulfone) with Oligoaniline Pendants显示文摘 | LI Fangfei WANG Jiayu ZHOU Mingjuan LIU Xincai WANG Ce CHAO Danming | 2015 | Chemical Research in Chinese Universities2015，31，6： | 0 |
| 13 | Ultrafast investigation of room temperature valley polarization in“optical bilayer”WS_(2)显示文摘Monolayer transition metal dichalcogenides(TMDCs)have become a promising platform in valleytronics due to possessing the regulatable valley degrees of freedom.While,as a result of the rapid intervalley scattering,it is difficult to measure the PL valley polarization of monolayer TMDCs at room temperature,which limits their application in valleytronics devices.Here,we report a room temperature photoluminescence(PL)valley polarization up to 3.73%in an“optical bilayer”WS_(2)formed by transferring monolayer WS_(2)onto flat Ag film.Furthermore,in the transient absorption(TA)measurements,a remarkably long valley depolarization lifetime is found.Thus,we demonstrate the valley properties of such“optical bilayer”WS_(2)resemble actual bilayer WS_(2),in which the robust valley polarization can be attributed to the phonons depletion effect and the blocked interlayer hopping processes.These peculiar valley features in“optical bilayer”WS_(2)provide a particularly simple method to enhance valley control at room temperature. | ZHAO LeYi WANG Hai LIU TianYu LI FangFei ZHOU Qiang WANG HaiYu | 2024 | Science China(Technological Sciences)2024，67，1： | 0 |
| 14 | Functional Recovery with Electro-Acupuncture Stimulation in an Mecp2-Knockout Rat Model of Rett Syndrome显示文摘Rett syndrome is a progressive neurodevelopmental disorder that lacks effective treatments.Although deep-brain stimulation can alleviate some symptoms in Rett model mice,this interventional manipula-tion requires deliberate surgical operations.Here,we report that electro-acupuncture stimulation(EAS)can ameliorate symptoms of an Mecp2-knockout rat model of Rett syndrome from the remote acupoints Baihui(GV 20),Yongquan(KI 1),and Shenmen(HT 7).We find that EAS not only prolongs the survival time of Rett rats,but also improves their behavior ability,including locomotion,motor coordination,and social interaction.Neural activation was observed in the substantia nigra of the midbrain,corpus striatum,and cerebral cortex of wild-type and Rett model rats,as reflected by the increased expression of the c-Fos protein.Hence,EAS provides a potential promising therapeutic tool for treating neurodevel-opmental diseases. | Yanhong Sun Zhifang Chen Yi Xu Yuefang Zhang Zhilei Ge Chenglie Lin Yi Zhou Fangfei Zhao Meiling Yan Xinyi Liu Ying Zhu Jimin Gao Hongyi Li Lihua Wang Jun Hu Zilong Qiu Chunhai Fan | 2022 | Engineering2022，8，5： | 0 |
| 15 | Detecting gravitational wave with an interferometric seismometer array on lunar nearside显示文摘Our Moon is by far the easiest natural, extraterrestrial celestial object for us to reach, and many space agencies, in particular the China National Space Administration, have publicized plans for manned missions there. Such high-profile projects must yield commensurate scientific outputs to justify their cost to the taxpayers. An important criterion for the selection of candidate experiments is the extent to which the Moon plays an integral and irreplaceable role, as opposed to offering only marginal advantages over Earth-orbit, space-based alternatives. In this study, we propose an experiment that excels in this regard, which considers the Moon as part of the experimental apparatus. Specifically, the Moon acts as a Weber bar-style resonant mass that responds to deci-Hertz gravitational waves(GWs). GW-excited lunar vibrations can be picked up by an array of(prefabricated on Earth and easy to transport to the Moon) small laser interferometric seismometers yielding GW detection. Such a setup would plug a gap in the GW frequency range already covered by the existing or underdevelopment detectors, and it can inform us on important astrophysics topics, such as the progenitors of Type Ia supernovae(SNe Ia) or intermediate mass black holes. We provide the instrument design as well as its deployment strategy, and we also summarize relevant science cases according to the estimated viable sensitivity. | Junlang Li Fangfei Liu Yuan Pan Zijian Wang Mengdi Cao Mengyao Wang Fan Zhang Jinhai Zhang Zong-Hong Zhu | 2023 | Science China(Physics,Mechanics & Astronomy)2023，66，10： | 0 |
| 16 | Erratum to:Detecting gravitational wave with an interferometric seismometer array on lunar nearside[Sci.China-Phys.Mech.Astron.66,109513(2023)]显示文摘This paper'Detecting gravitational wave with an interferometric seismometer array on lunar nearside'[1]was published in SCIENCE CHINA Physics,Mechanics&Astronomy(66,109513(2023),doi:10.1007/s11433-023-2179-9).Due to an oversight on our part,some errors were made in the originally published paper.We apologize for these errors and offer the corresponding explanations and corrections for the readers. | Junlang Li Fangfei Liu Yuan Pan Zijian Wang Mengdi Cao Mengyao Wang Fan Zhang Jinhai Zhang Zong-Hong Zhu | 2024 | Science China(Physics,Mechanics & Astronomy)2024，67，1： | 0 |
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