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From West to East:Professor Pavlos Savvidis’Quest for Light

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Light(Science & Applications) 2024年第11期13卷 2446-2453页

作者： ji Wang Westlake University No.600 Dunyu RoadXihu DistrictHangzhouZhejiang 310030China

Editorial As early as about 2400 years ago,Mozi(original name Mo Di,Latinized as Micius),an ancient Chinese scientist,proposed the theory of pinhole imaging that demonstrates the fundamental principle of light *** 700 years ago,Marco Polo,an Italian explorer,traveled to China along the Silk Road,marveled at the economic prosperity and the advanced technology of Hangzhou City in China,and described Hangzhou as“the most beautiful and splendid city in the world”.About 5 years ago,with the support of the China-proposed Belt-and-Road Initiative,it was in Hangzhou City that Professor Pavlos Savvidis,an Armenian-born Greek physicist,chose to work with more of his Chinese counterparts and took on the challenge of building a new research laboratory on quantum *** used to study and work in the UK,the USA,and Greece,but now in New China’s first new type of research university supported by the society—Westlake *** from West to East,traversing from one civilization to another,Professor Pavlos Savvidis delves into his unwavering quest for light in this issue of“Light People”,and discusses his tireless pursuit of excellence in the field of optoelectronics,which has garnered him widespread citation,recognition,and contribution to the global scientific community.

关键词： Italian travel Hangzhou

Relationship between fracture spacing and bed thickness in sedimentary rocks:Approach by means of Michaelis-Menten equation

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Journal of Rock Mechanics and Geotechnical Engineering 2023年第8期15卷 1924-1930页

作者： Shaocheng ji Département des Génies Civil Géologique et des MinesÉcole Polytechnique de MontréalMontréalQuébecH3C 3A7Canada

Fractures occur in nearly all rocks at the Earth’s surface and exert essential control on the mechanical strengths of rock masses and *** fractures strongly impact the stability of geological or man-made structures and flow of water and hydrocarbons,CO_(2) and storing *** this,the dependence of opening mode fracture spacing(s)on bed thickness(t)in sedimentary basins(reservoirs)is studied in this *** paper shows that the MichaeliseMenten equation can provide an algebraic expression for the nonlinear s-t *** two parameters have clear geological meanings:a is the maximum fracture spacing which can no longer increase with increasing t,and b is the characteristic bed thickness when s=*** tensile fracture strength(C)of the brittle beds during the formation of tensile fractures can be estimated from the two *** sandstones of 16 areas reported in the literature,C ranges from 2.7 MPa to 15.7 MPa with a mean value of 8 MPa,which lies reasonably within the range of tensile strengths determined *** field-based approach by means of MichaeliseMenten equation provides a new method for estimating the tensile fracture strength of rock layers under natural conditions.

关键词： Fracture spacing Sedimentary rocks Michaelisementen equation Tensile fracture strength Rock fracture mechanics

Proton mass decomposition:Naturalness and interpretations

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Frontiers of physics 2021年第6期16卷 83-92页

作者： Xiangdong ji Center for Nuclear Femtography SURA1201 New York Ave.NWWashingtonDC 20005USA Department of Physics University of MarylandCollege ParkMD 20742USA

Idiscuss the scope and naturalness of the proton mass decomposition(or sum rule)published in ***.74,1071(1995)and answer a few criticisms that appeared recently in the literature,focusing particularly on its interpret... 详细信息

关键词： mass decomposition quantum

Light People: Professor Fanglin Bao and his cover story

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Light(Science & Applications) 2024年第6期13卷 1015-1020页

作者： ji Wang School of Science Westlake UniversityHangzhouZhejiangPR China

Qu Yuan,a renowned ancient Chinese poet,once pondered in his work Heavenly Inquiry:“If the sun’s light is absent,from where does the radiance of the Hero Flower emanate?”The ability to see clearly in the darkest of nights has long been a sought-after magical power by *** holds not only immense technological significance for computer vision and remote sensing but also profound implications for transcending the dichotomy between day and night in our daily *** Fanglin Bao from Westlake University has made significant breakthroughs in this field,bringing us closer to a world where we can transform night into *** groundbreaking research on Heat-Assisted Detection and Ranging(HADAR)and night vision was featured as the cover story in Nature on July 26,2023.

关键词： bringing breakthrough holds

An Explosive Organic/Inorganic Hybrid: Synthesis and Thermal Property of Octa(2,4-dinitrophenyl)silsesquioxane

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Chemical Research in Chinese Universities 2004年第1期20卷 42-45页

作者： CHENHong-ji DepartmentofChemistry JinanUniversityGuangzhou510632P.R.China

Octaphenylsilsesquioxane(OPhS) was prepared by a modifying method and a new core-shell nanocomposite, octa(2,4-dinitrophenyl)silsesquioxane, [(R_2PhSiO_ 1.5)_8, R=—NO_2, ODNPhS], was synthesized by nitration of OPhS in a mixed acid solution of nitric and sulfuric acids at about 60 ℃. Their molecular structures were determined by DRIFTS, 1H NMR, 13C NMR spectra analysis. The thermal analysis shows that ODNPhS is an explosive that detonates at about 420 ℃.

关键词： Core-shell nanocomposite Organic/inorganic hybrid Octa(2,4-dinitrophenyl)silsquioxane Thermal property

Orbital Stability of Peakons for the Modified Camassa–Holm Equation

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Acta Mathematica Sinica,English Series 2022年第1期38卷 148-160页

作者： ji LI School of Mathematics and Statistics Huazhong University of Science and TechnologyWuhan 430074P.R.China

In this paper,we investigate the orbital stability of the peaked solitons(peakons)for the modified Camassa–Holm equation with cubic *** consider a minimization problem with an appropriately chosen constraint,from whi... 详细信息

关键词： Stability peaked solitary waves modified Camassa–Holm equation variational problem concentration compactness

Strain and stress analysis on Zn multicrystal film by XRD method

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中国有色金属学会会刊：英文版 2006年第B2期16卷 735-738页

作者： Vincent ji LIM UMR CNRS8006ENSAM 151Boulevard de I'Hopital75013 ParisFrance

A new method was denonstrated to determine stress in a single crystal for multicrystal material and this new method could be specially applied for any symmetric crystalline systems. The strain tensor e was determined by the change of the metric tensor G before the initial state and after the deformed state in the crystal reference system. Then stress tensor at grain scale was calculated by the HOOK's law. The stress evaluations were carried out in coarse grains of a thin galvanized coating on a steel substrate during tensile loading. This makes it possible to link the microstructure evolution to the elastic heterogeneity at grain scale or between the grains.

关键词：锌多晶膜单晶应力应变分析 XRD法锌镀层

Deep learning-based software engineering: progress,challenges, and opportunities

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Science China(Information Sciences) 2025年第1期68卷 57-144页

作者： Xiangping CHEN Xing HU Yuan HUANG He jiANG Weixing ji Yanjie jiANG Yanyan jiANG Bo LIU Hui LIU Xiaochen LI Xiaoli LIAN Guozhu MENG Xin PENG Hailong SUN Lin SHI Bo WANG Chong WANG jiayi WANG Tiantian WANG jifeng XUAN Xin XIA Yibiao YANG Yixin YANG Li ZHANG Yuming ZHOU Lu ZHANG School of Journalism and Communication Sun Yat-sen University School of Software Technology Zhejiang University School of Software Engineering Sun Yat-sen University School of Software Dalian University of Technology School of Computer Science and Technology Beijing Institute of Technology Key Laboratory of High Confidence Software Technologies (Peking University) Ministry of EducationSchool of Computer Science Peking University State Key Laboratory for Novel Software Technology Nanjing University School of Computer Science and Engineering Beihang University Institute of Information Engineering Chinese Academy of Sciences School of Computer Science Fudan University State Key Laboratory of Complex & Critical Software Environment (CCSE) School of Software Beihang University School of Computer and Information Technology Beijing Jiaotong University School of Computer Science and Technology Harbin Institute of Technology School of Computer Science Wuhan University Huawei Technologies

Researchers have recently achieved significant advances in deep learning techniques, which in turn has substantially advanced other research disciplines, such as natural language processing, image processing, speech recognition, and software engineering. Various deep learning techniques have been successfully employed to facilitate software engineering tasks, including code generation, software refactoring, and fault localization. Many studies have also been presented in top conferences and journals, demonstrating the applications of deep learning techniques in resolving various software engineering tasks. However,although several surveys have provided overall pictures of the application of deep learning techniques in software engineering,they focus more on learning techniques, that is, what kind of deep learning techniques are employed and how deep models are trained or fine-tuned for software engineering tasks. We still lack surveys explaining the advances of subareas in software engineering driven by deep learning techniques, as well as challenges and opportunities in each subarea. To this end, in this study, we present the first task-oriented survey on deep learning-based software engineering. It covers twelve major software engineering subareas significantly impacted by deep learning techniques. Such subareas spread out through the whole lifecycle of software development and maintenance, including requirements engineering, software development, testing, maintenance, and developer collaboration. As we believe that deep learning may provide an opportunity to revolutionize the whole discipline of software engineering, providing one survey covering as many subareas as possible in software engineering can help future research push forward the frontier of deep learning-based software engineering more systematically. For each of the selected subareas,we highlight the major advances achieved by applying deep learning techniques with pointers to the available datasets i

关键词： deep learning software engineering software benchmark software artifact representation survey

Challenges and opportunities facing game theory and control: an interview with Tamer Ba?ar

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National Science Review 2020年第7期7卷 1142-1146页

作者： ji-Feng Zhang the Academy of Mathematics and Systems Science of the Chinese Academy of Sciences

The Control community has recently witnessed an almost exponentially growing interest in the application of game-theoretic concepts and tools in research on control, multi-agent systems, and networks. In an interview with NSR, Professor Tamer Ba?ar, a member of the US National Academy of Engineering, Swanlund Endowed Chair and CAS Professor of Electrical and Computer Engineering, and Director of the Center for Advanced Study at the University of Illinois at Urbana-Champaign in the USA, former president of both the IEEE Control

关键词： Game theory