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| 1 | Spatial correlation-based characterization of acoustic emission signal-cloud in a granite sample by a cube clustering approach显示文摘To extract more in-depth information of acoustic emission(AE)signal-cloud in rock failure under triaxial compression,the spatial correlation of scattering AE events in a granite sample is effectively described by the cube-cluster model.First,the complete connection of the fracture network is regarded as a critical state.Then,according to the Hoshen-Kopelman(HK)algorithm,the real-time estimation of fracture con-nection is effectively made and a dichotomy between cube size and pore fraction is suggested to solve such a challenge of the one-to-one match between complete connection and cluster size.After,the 3D cube clusters are decomposed into orthogonal layer clusters,which are then transformed into the ellip-soid models.Correspondingly,the anisotropy evolution of fracture network could be visualized by three orthogonal ellipsoids and quantitatively described by aspect ratio.Besides,the other three quantities of centroid axis length,porosity,and fracture angle are analyzed to evaluate the evolution of cube cluster.The result shows the sample dilatancy is strongly correlated to four quantities of aspect ratio,centroid axis length,and porosity as well as fracture angle.Besides,the cube cluster model shows a potential pos-sibility to predict the evolution of fracture angle.So,the cube cluster model provides an in-depth view of spatial correlation to describe the AE signal-cloud. | Dongjie Xue Zepeng Zhang Cheng Chen Jie Zhou Lan Lu Xiaotong Sun Yintong Liu | 2021 | International Journal of Mining Science and Technology2021，31，4： | 5 |
| 2 | Instability characteristics of a co-rotating wingtip vortex pair based on bi-global linear stability analysis显示文摘The Stereo Particle Image Velocimetry(SPIV)technology is applied to measure the wingtip vortices generated by the up-down symmetrical split winglet.Then,the temporal biglobal Linear Stability Analysis(bi-global LSA)is performed on this nearly equal-strength corotating vortex pair,which is composed of an upper vortex(vortex-u)and a down vortex(vortex-d).The results show that the instability eigenvalue spectrum illustrated by(ωr,ω_(i))contains two types of branches:discrete branch and continuous branch.The discrete branch contains the primary branches of vortex-u and vortex-d,the secondary branch of vortex-d and coupled branch,of which all of the eigenvalues are located in the unstable half-plane ofω_(i)>0,indicating that the wingtip vortex pair is temporally unstable.By contrast,the eigenvalues of the continuous branch are concentrated on the half-plane ofω_(i)<0 and the perturbation modes correspond to the freestream perturbation.In the primary branches of vortex-u and vortex-d,Mode P_(u) and Mode Pd are the primary perturbation modes,which exhibit the structures enclosed with azimuthal wavenumber m and radial wavenumber n,respectively.Besides,the results of stability curves for vortex-u and vortex-d demonstrate that the instability growth rates of vortex-u are larger than those of vortex-d,and the perturbation energy of Mode P_(u) is also larger than that of Mode Pd.Moreover,the perturbation energy of Mode P_(u) is up to 0.02650 and accounts for 33.56%percent in the corresponding branch,thereby indicating that the instability development of wingtip vortex is dominated by Mode P_(u).By further investigating the topological structures of Mode P_(u) and Mode Pd with streamwise wavenumbers,the most unstable perturbation mode with a large azimuthal wavenumber of m=5-6 is identified,which imposes on the entire core region of vortex-u.This large azimuthal wavenumber perturbation mode can suggest the potential physical-based flow control strategy by manipulating it. | Zepeng CHENG Siyi QIU Yang XIANG Chun SHAO Miao ZHANG Hong LIU | 2021 | Chinese Journal of Aeronautics2021，34，5： | 4 |
| 3 | Ultracompact dual-mode waveguide crossing based on subwavelength multimode-interference couplers显示文摘We propose and experimentally demonstrate a novel ultracompact dual-mode waveguide crossing based on subwavelength multimode-interference couplers for a densely integrated on-chip mode-division multiplexing system.By engineering the lateral-cladding material index and manipulating phase profiles of light at the nanoscale using an improved inverse design method, a subwavelength structure could theoretically realize the identical beat length for both TE_0 and TE1, which can reduce the scale of the device greatly. The fabricated device occupied a footprint of only 4.8 μm× 4.8 μm. The measured insertion losses and crosstalks were less than 0.6 d B and-24 d B from 1530 nm to 1590 nm for both TE0 and TE1 modes, respectively. Furthermore, our scheme could also be expandedto design waveguide crossings that support more modes. | WEIJIE CHANG LULUZI LU XINSHU REN DONGYU LI ZEPENG PAN MENGFAN CHENG DEMING LIU MINMING ZHANG | 2018 | Photonics Research2018，6，7： | 4 |
| 4 | Effect of microbial fermentation on the sensory characteristics and chemical compositions of Chinese sweet tea(Lithocarpus litseifolius(Hance)Chun)显示文摘Sweet tea,which has hundreds of years of use among in Chinese folk,is a traditional herbal tea with pleasant sweetness,bitterness and astringency.In the current study,we used traditional microbial fermentation to improve sensory characteristics of sweet tea,especially for the reduction of bitterness and astringency.The dynamic changes of non-volatile,volatile compounds and microbial community were investigated during microbial fermentation.The contents of polyphenols,flavonoids,soluble sugar,soluble protein,catechins and dihydrochalcones decreased significantly while the tea pigments,free amino acids and gallic acid content inversely increased during microbial fermentation.A total of 61 volatile compounds were identified and quantified in sweet tea,of which 20 key compounds were identified as odor active compounds(OAV),including 3 aldehydes,1 ketone,4 alcohols,9 esters,4 alkenes and 3 other compounds.In addition,eight fungi and four bacteria were considered as core microorganisms,such as Aspergillus,Alternaria,Cladosporium,Epicoccum,Itersonilia,Penicillium,Periconia,Wallemia,Aureimonas,Enterobacter,Klebsiella and Stenotrophomonas,which were significantly correlated with non-volatile compounds and flavor compounds.These results provided theoretical guidance for processing of fermented sweet tea. | Weimin Huang Changyi Zhang Zepeng Gu Cheng Li Zhengfeng Fang Zhen Zeng Zhiqing Zhang Bin Hu Hong Chen Wenjuan Wu Tiqiang Wang Xiguo Lan Yuntao Liu | 2022 | Food Bioscience2022，46，2： | 1 |
| 5 | A genetically engineered Escherichia coli that senses and degrades tetracycline antibiotic residue显示文摘Due to the abuse of antibiotics,antibiotic residues can be detected in both natural environment and various industrial products,posing threat to the environment and human health.Here we describe the design and implementation of an engineered Escherichia coli capable of degrading tetracycline(Tc)-one of the commonly used antibiotics once on humans and now on poultry,cattle and fisheries.A Tcdegrading enzyme,TetX,from the obligate anaerobe Bacteroides fragilis was cloned and recombinantly expressed in E.coli and fully characterized,including its Km and kcat value.We quantitatively evaluated its activity both in vitro and in vivo by UVeVis spectrometer and LC-MS.Moreover,we used a tetracycline inducible amplification circuit including T7 RNA polymerase and its specific promoter PT7 to enhance the expression level of TetX,and studied the dose-response of TetX under different inducer concentrations.Since the deployment of genetically modified organisms(GMOs)outside laboratory brings about safety concerns,it is necessary to explore the possibility of integrating a kill-switch.Toxin-Antitoxin(TA)systems were used to construct a mutually dependent host-plasmid platform and biocontainment systems in various academic and industrious situations.We selected nine TA systems from various bacteria strains and measured the toxicity of toxins(T)and the detoxifying activity of cognate antitoxins(A)to validate their potential to be used to build a kill-switch.These results prove the possibility of using engineered microorganisms to tackle antibiotic residues in environment efficiently and safely. | Zepeng Mu Zhuoning Zou Ye Yang Wenbo Wang Yue Xu Jianyi Huang Ruiling Cai Ye Liu Yajin Mo Boyi Wang Yiqun Dang Yongming Li Yushan Liu Yueren Jiang Qingyang Tan Xiaohong Liu Cheng Hu Hua Li Sha Wei Chunbo Lou Yang Yu Jiangyun Wang | 2018 | Synthetic and Systems Biotechnology2018，3，3： | 0 |
| 6 | Recent Advances in Organic Room-Temperature Phosphorescence of Heteroatom(B/S/P)-Containing Chromophores显示文摘Purely organic room-temperature phosphors,which have received extensive attention as emerging stateof-the-art luminescent materials in various fields,have a longer lifetime than fluorophores.The energy gap law and El-Sayed’s rule provide clear design principles for the development of organic room-temperature phosphorescence.Therefore,the incorporation of heteroatoms(such as sulfur and phosphorus)usually promotes the intersystem crossing rate and increases the 3(π,π*)configuration to realize long lifetimes.Furthermore,boron-containing phosphors not only display excellent phosphorescence properties but also expand El-Sayed’s rule without(n,π*)transitions.This review summarizes recent work on organic phosphorescence of heterocycles with boron,sulfur,and phosphorus heteroatoms and highlights the significance of the guidelines for constructing efficient phosphorescence molecules.This work is instrumental in further diversifying the pool of phosphorescent molecules and developing new and effective design strategies. | Zepeng Wang Xiaojie Cheng Yingjie Xie Shulin Liu Mengjiao Dong Jianfeng Zhao Fushun Liang Zhongfu An Wei Huang | 2023 | CCS Chemistry2023，5，2： | 0 |
| 7 | Effect of vortex dynamics and instability characteristics on the induced drag of trailing vortices显示文摘In this paper, trailing vortices generated by three wingtip configurations, namely the M6wing and the M6 wing with a blended or split winglet, are experimentally investigated using the Stereo Particle Image Velocimetry(SPIV) technology. Then, linear stability analysis is performed to investigate instability characteristics. Three corresponding trailing vortex patterns, including the isolated trailing vortex without wake(pattern v) and with wake(pattern v-w), co-rotating vortex pair(pattern v-v), are observed in experiments. The strength of trailing vortices, characterized by circulation, is reduced after installing winglets as expected, and the strength of pattern v-v can be further suppressed compared with pattern v-w. Moreover, instability characteristics, such as the eigenvalue spectrum and perturbation mode, are distinctive among these three vortex patterns.The distribution of eigenvalue spectrums indicates that pattern v and pattern v-w are temporally“marginally stable”, while pattern v-v is temporally “unstable.” The primary perturbation mode of pattern v and pattern v-w is the m =-1 helical mode, while |m|>1 for the case of pattern v-v.The effect of vortex dynamics and instability characteristics can be concluded in two aspects.Firstly, the value of induced drag is polluted by about 3% from vortex wandering since vortex wandering affects the tangential velocity and streamwise vorticity of trailing vortices. Secondly, the growth rate and penetration depth perturbation mode affect trailing vortex evolution and further affect induced drag. Specifically, the larger the growth rate and penetration depth are, the more turbulence injects inside the vortex core, thus leading to a quicker and more intense attenuation of trailing vortex, as well as a smaller induced drag. This finding can guide us to manipulate the induced drag in flow control. | Zepeng CHENG Shiyan ZHANG Yang XIANG Chun SHAO Miao ZHANG Hong LIU Yingchun CHEN | 2022 | Chinese Journal of Aeronautics2022，35，9： | 0 |
| 8 | Sub-percent precision measurement of neutrino oscillation parameters with JUNO显示文摘JUNO is a multi-purpose neutrino observatory under construction in the south of China.This publication presents new sensitivity estimates for the measurement of the △m_(31)^(2),△m_(21)^(2),sin^(2)θ_(12),and sin^(2)θ_(13) oscillation parameters using reactor antineutrinos,which is one of the primary physics goals of the experiment.The sensitivities are obtained using the best knowledge available to date on the location and overburden of the experimental site,the nuclear reactors in the surrounding area and beyond,the detector response uncertainties,and the reactor antineutrino spectral shape constraints expected from the TAO satellite detector.It is found that the △m_(21)^(2) and sin^(2)θ_(12) oscillation parameters will be determined to 0.5%precision or better in six years of data collection.In the same period,the △m_(31)^(2) parameter will be determined to about 0.2%precision for each mass ordering hypothesis.The new precision represents approximately an order of magnitude improvement over existing constraints for these three parameters. | Angel Abusleme Thomas Adam Shakeel Ahmad Rizwan Ahmed Sebastiano Aiello Muhammad Akram Abid Aleem 安丰鹏 安琪 Giuseppe Andronico Nikolay Anfimov Vito Antonelli Tatiana Antoshkina Burin Asavapibhop João Pedro Athayde Marcondes de André Didier Auguste 白伟东 Nikita Balashov Wander Baldini Andrea Barresi Davide Basilico Eric Baussan Marco Bellato Antonio Bergnoli Thilo Birkenfeld Sylvie Blin David Blum Simon Blyth Anastasia Bolshakova Mathieu Bongrand Clément Bordereau Dominique Breton Augusto Brigatti Riccardo Brugnera Riccardo Bruno Antonio Budano Jose Busto Ilya Butorov Anatael Cabrera Barbara Caccianiga 蔡浩 蔡啸 蔡严克 蔡志岩 Riccardo Callegari Antonio Cammi Agustin Campeny 曹传亚 曹国富 曹俊 Rossella Caruso Cédric Cerna Chi Chan 常劲帆 Yun Chang 陈国明 陈平平 Po-An Chen 陈少敏 Xurong Chen 陈义学 陈羽 陈志源 陈梓康 程捷 程雅苹 Yu Chin Cheng Alexey Chetverikov Davide Chiesa Pietro Chimenti Artem Chukanov Gérard Claverie Catia Clementi Barbara Clerbaux Selma Conforti Di Lorenzo Daniele Corti Flavio Dal Corso Olivia Dalager Christophe De La Taille 邓智 邓子艳 Wilfried Depnering Marco Diaz Xuefeng Ding 丁雅韵 Bayu Dirgantara Sergey Dmitrievsky Tadeas Dohnal Dmitry Dolzhikov Georgy Donchenko 董建蒙 Evgeny Doroshkevich Marcos Dracos Frédéric Druillole 杜然 杜书先 Stefano Dusini Martin Dvorak Timo Enqvist Heike Enzmann Andrea Fabbri Donghua Fan 樊磊 方建 方文兴 Marco Fargetta Dmitry Fedoseev 费政勇 Li-Cheng Feng 冯启春 Richard Ford Amélie Fournier 甘浩男 高峰 Alberto Garfagnini Arsenii Gavrikov Marco Giammarchi Nunzio Giudice Maxim Gonchar 龚光华 宫辉 Yuri Gornushkin Alexandre Göttel Marco Grassi Vasily Gromov 顾旻皓 谷肖飞 古宇 关梦云 管宇铎 Nunzio Guardone 郭聪 郭竞渊 郭万磊 Xinheng Guo 郭宇航 Paul Hackspacher Caren Hagner 韩然 Yang Han 何苗 Wei He Tobias Heinz Patrick Hellmuth 衡月昆 Rafael Herrera 贺远强 侯少静 Yee Hsiung Bei-Zhen Hu 胡航 Jianrun Hu 胡俊 胡守扬 胡涛 胡宇翔 胡焯钧 黄桂鸿 黄翰雄 黄凯旋 黄文昊 Xin Huang 黄性涛 黄永波 惠加琪 霍雷 霍文驹 Cédric Huss Safeer Hussain Ara Ioannisian Roberto Isocrate Beatrice Jelmini Ignacio Jeria 季筱璐 贾慧慧 贾俊基 蹇司玉 蒋荻 蒋炜 江晓山 荆小平 Cécile Jollet Jari Joutsenvaara Leonidas Kalousis Philipp Kampmann 康丽 Rebin Karaparambil Narine Kazarian Amina Khatun Khanchai Khosonthongkee Denis Korablev Konstantin Kouzakov Alexey Krasnoperov Nikolay Kutovskiy Pasi Kuusiniemi Tobias Lachenmaier Cecilia Landini Sébastien Leblanc Victor Lebrin Frederic Lefevre 雷瑞庭 Rupert Leitner Jason Leung Daozheng Li 李德民 李飞 李福乐 李高嵩 Huiling Li 李梦朝 李民 李楠 Nan Li 李清江 李茹慧 李瑞 黎山峰 李涛 李腾 李卫东 李卫国 李笑梅 李小男 李兴隆 李仪 李依宸 李玉峰 Zepeng Li 李兆涵 李志兵 李紫源 李宗海 梁浩 梁昊 廖佳军 Ayut Limphirat Guey-Lin Lin 林盛鑫 林韬 凌家杰 Ivano Lippi 刘芳 刘海东 刘昊天 刘宏邦 刘红娟 刘洪涛 Hui Liu 刘江来 刘金昌 刘敏 刘倩 刘钦 Runxuan Liu 刘树彬 刘术林 刘小伟 刘熙文 Yan Liu Yunzhe Liu Alexey Lokhov Paolo Lombardi Claudio Lombardo Kai Loo 陆川 路浩奇 陆景彬 吕军光 路书祥 Bayarto Lubsandorzhiev Sultim Lubsandorzhiev Livia Ludhova Arslan Lukanov Daibin Luo Fengjiao Luo 罗光 罗舒 罗武鸣 罗晓杰 Vladimir Lyashuk 马帮争 马冰 马秋梅 马斯 马骁妍 马续波 Jihane Maalmi 麦景宇 Yury Malyshkin Roberto Carlos Mandujano Fabio Mantovani Francesco Manzali 冒鑫 冒亚军 Stefano M.Mari Filippo Marini Cristina Martellini Gisele Martin-Chassard Agnese Martini Matthias Mayer Davit Mayilyan Ints Mednieks Artur Meinusch 孟月 Anselmo Meregaglia Emanuela Meroni David Meyhö Mauro Mezzetto Jonathan Miller Lino Miramonti Marta Colomer Molla Paolo Montini Michele Montuschi Axel Müller Massimiliano Nastasi Dmitry V.Naumov Elena Naumova Diana Navas-Nicolas Igor Nemchenok Minh Thuan Nguyen Thi 宁飞鹏 宁哲 Hiroshi Nunokawa Lothar Oberauer Juan Pedro Ochoa-Ricoux Alexander Olshevskiy Domizia Orestano Fausto Ortica Rainer Othegraven Alessandro Paoloni Sergio Parmeggiano 裴亚田 Luca Pelicci Nicomede Pelliccia 彭安国 彭海平 彭宇 彭昭缘 Frédéric Perrot Pierre-Alexandre Petitjean Fabrizio Petrucci Oliver Pilarczyk Luis Felipe Piñeres Artyom Popov Pascal Poussot Ezio Previtali 齐法制 祁鸣 钱森 钱小辉 钱圳 乔浩 秦中华 丘寿康 Gioacchino Ranucci Neill Raper Reem Rasheed Alessandra Re Henning Rebber Abdel Rebii Mariia Redchuk 任斌 任杰 Barbara Ricci Mariam Rifai Mathieu Roche Narongkiat Rodphai Aldo Romani Bedřich Roskovec 阮锡超 Arseniy Rybnikov Andrey Sadovsky Paolo Saggese Simone Sanfilippo Anut Sangka Utane Sawangwit Julia Sawatzki Michaela Schever Cédric Schwab Konstantin Schweizer Alexandr Selyunin Andrea Serafini Giulio Settanta Mariangela Settimo Zhuang Shao Vladislav Sharov Arina Shaydurova 石京燕 史娅楠 Vitaly Shutov Andrey Sidorenkov FedorŠimkovic Chiara Sirignano Jaruchit Siripak Monica Sisti Maciej Slupecki Mikhail Smirnov Oleg Smirnov Thiago Sogo-Bezerra Sergey Sokolov Julanan Songwadhana Boonrucksar Soonthornthum Albert Sotnikov OndřejŠrámek Warintorn Sreethawong Achim Stahl Luca Stanco Konstantin Stankevich DušanŠtefánik Hans Steiger Jochen Steinmann Tobias Sterr Matthias Raphael Stock Virginia Strati Alexander Studenikin 苏俊 孙世峰 孙希磊 孙勇杰 孙永昭 孙正阳 Narumon Suwonjandee Michal Szelezniak 唐健 唐强 唐泉 唐晓 Vidhya Thara Hariharan Eric Theisen Alexander Tietzsch Igor Tkachev Tomas Tmej Marco Danilo Claudio Torri Konstantin Treskov Andrea Triossi Giancarlo Troni Wladyslaw Trzaska Alexandros Tsagkarakis Cristina Tuve Nikita Ushakov Vadim Vedin Giuseppe Verde Maxim Vialkov Benoit Viaud Cornelius Moritz Vollbrecht Cristina Volpe Katharina Von Sturm Vit Vorobel Dmitriy Voronin Lucia Votano Pablo Walker 王彩申 Chung-Hsiang Wang 王恩 王国利 王坚 王俊 汪璐 Meifen Wang 王孟 Meng Wang 王瑞光 王思广 王维 王为 王文帅 王玺 王湘粤 王仰夫 王耀光 王毅 王义 王贻芳 王元清 Yuman Wang 王喆 王铮 王志民 Zongyi Wang Apimook Watcharangkool 魏微 魏巍 韦雯露 魏亚东 温凯乐 温良剑 Christopher Wiebusch 黄振辉 Bjoern Wonsak 吴帝儒 吴群 吴智 Michael Wurm Jacques Wurtz Christian Wysotzki 习宇飞 夏冬梅 Xiang Xiao 谢小川 谢宇广 Zhangquan Xie 辛钊 邢志忠 续本达 徐程 徐东莲 徐繁荣 许杭锟 徐吉磊 徐晶 徐美杭 徐音 闫保军 Taylor Yan Wenqi Yan 严雄波 Yupeng Yan 杨长根 杨成峰 Huan Yang 杨洁 杨雷 杨晓宇 Yifan Yang 姚海峰 叶佳璇 叶梅 叶子平 Frédéric Yermia Na Yin 尤郑昀 俞伯祥 余炽业 喻纯旭 余泓钊 于淼 于向辉 于泽源 于泽众 袁岑溪 袁成卓 袁影 袁振雄 岳保彪 Noman Zafar Vitalii Zavadskyi 曾珊 曾婷轩 曾裕达 占亮 张爱强 张斌 张斌婷 张飞洋 Guoqing Zhang 张宏浩 张家梁 张家文 张杰 Jin Zhang 张景波 张金楠 Mohan Zhang 张鹏 张清民 张石其 张澍 张涛 张晓梅 张鑫 张玄同 Xueyao Zhang 张银鸿 张易于 张永鹏 张宇 张圆圆 张玉美 张振宇 张志坚 Fengyi Zhao 赵洁 赵荣 赵润泽 赵书俊 Dongqin Zheng 郑华 郑阳恒 Weirong Zhong 周静 周莉 周楠 周顺 周彤 周详 朱江 朱景森 朱康甫 朱科军 朱志航 庄博 庄红林 宗亮 邹佳恒 | 2022 | Chinese Physics C2022，46，12： | 0 |
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