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Chemical Research in Chinese Universities 2014年第4期30卷 593-595页

作者： liu hailing Analytical and Testing Center Beijing Normal University Beijing 100875 P. R. China

JandaJel resin-supported triphenylphosphine（JJ-TPP）,was used as an effective organocatalyst for the [3＋2] annulation reaction of alkyl 2-butynoates with electron-deficient alkenes to afford the corresponding cyclop... 详细信息

关键词： Organocatalysis Polymer-supported tertiaryphosphine [3+2] Annulation reaction

Quantum algorithm for soft margin support vector machine with hinge loss function

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The Journal of China Universities of Posts and Telecommunications 2022年第4期29卷 32-41页

作者： liu hailing Zhang Jie Qin Sujuan Gao Fei State Key Laboratory of Networking and Switching Technology Beijing University of Posts and TelecommunicationsBeijing 100876China State Key Laboratory of Cryptology P.O.Box 5159Beijing 100878China

Soft margin support vector machine(SVM)with hinge loss function is an important classification algorithm,which has been widely used in image recognition,text classification and so ***,solving soft margin SVM with hinge loss function generally entails the sub-gradient projection algorithm,which is very time-consuming when processing big training data *** achieve it,an efficient quantum algorithm is ***,this algorithm implements the key task of the sub-gradient projection algorithm to obtain the classical sub-gradients in each iteration,which is mainly based on quantum amplitude estimation and amplification algorithm and the controlled rotation *** with its classical counterpart,this algorithm has a quadratic speedup on the number of training data *** is worth emphasizing that the optimal model parameters obtained by this algorithm are in the classical form rather than in the quantum state *** enables the algorithm to classify new data at little cost when the optimal model parameters are determined.

关键词： soft margin support vector machine hinge loss function the sub-gradient projection algorithm quantum algorithm quadratic speedup

Mesozoic Deformation and Its Geological Significance in the Southern Margin of the South China Sea

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Journal of Ocean University of China 2018年第4期17卷 835-845页

作者： ZHU Rongwei liu hailing YAO Yongjian WANG Yin CAS Key Laboratory of Ocean and Marginal Sea Geology South China Sea Institute of OceanologyChinese Academy of SciencesCruangzhou 510301China Guangzhou Marine Geological Survey Guangzhou 510760China University of Chinese Academy of Sciences Beijing 100049China

The pre-Eocene history of the region around the present South China Sea is not well known. New multi-channel seismic profiles provide valuable insights into the probable Mesozoic history of this region. Detailed structural and stratigraphic interpretations of the multi-channel seismic profiles, calibrated with relevant drilling and dredging data, show major Mesozoic structural features. A structural restoration was done to remove the Cenozoic tectonic influence and calculate the Mesozoic tectonic compression ratios. The results indicate that two groups of compressive stress with diametrically opposite orientations, S(S)E– N(N)W and N(N)W–S(S)E, were active during the Mesozoic. The compression ratio values gradually decrease from north to south and from west to east in each stress orientation. The phenomena may be related to the opening of the proto-South China Sea(then located in south of the Nansha block) and the rate at which the Nansha block drifted northward in the late Jurassic to late Cretaceous. The Nansha block drifted northward until it collided and sutured with the southern China margin. The opening of the present South China Sea may be related to this suture zone, which was a tectonic zone of weakness.

关键词： southern continental margin of the South China Sea Mesozoic deformation structure structural restoration proto-South China Sea

Existence of Qiongnan suture zone on the north margin of South China Sea

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Chinese Science Bulletin 2006年第B12期51卷 107-120页

作者： liu hailing YAN Pin liu Yingchun DENG Hui Key Laboratory of Marginal Sea Geology South China Sea Institute of Oceanology and Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 501301 China Sinopec International Petroleum Exploration & Production Corporation Beijing 100083 China

This paper aims to explore whether paleo-suture zone exists in the pre-Cenozoic basement of South China Sea (SCS). By taking advantage of integrated geophysical surveying data, including multi-channel reflection seismicity, oceanic bottom seismicity, gravity and magnetic data as well as paleomagnetism and drilling information, a comprehensive analysis on sedimentary stratigraphy, seismic stratigraphy, magmatic and metamorphic petrology, geochemistry, gravity study, magnetics, paleogeomagnetics as well as geotectonics was carried out, and the results clearly indicate that a pre-Cenozoic suture zone, i.e. “Qiongnan (south Hainan Island) suture zone”, does exist on the north margin of SCS. This suture zone starts in the west from the Jiusuo-Lingshui fault zone in the south of Hainan Island, extends eastward across the continental slope to the north of SCS, and links with Shoufeng fault in Taiwan. It is inferred that the Qiongnan suture zone was sutured approximately in Indosinian (Triassic) Epoch and is actually the vestige of “Qiongnan ocean basin”, the extension of the main paleo-Tethys ocean basin in SCS. The formation of Qiongnan suture zone marked the collision-accretion of the Qiongnan Block toward the Qiongzhong Block. The Qiongnan suture zone is linked to the west with the southward extension of the principal suture zone of the Paleo-Tethys at Bitu-Changning-Menglian-Bentong-Raub, across the southern segment of the Red River-East Vietnam-Wanna strike-slip fault zone, and connected to the east with the suture zone emplaced into the south margin of the Oki-Hida Pre-Jurassic terranes in southwest Japan, across the northerni2 e segment of the Manila trench fault zone in the northeast side of Taiwan Island. The discovery of this suture zone is believed to be potentially significant toward study of the pre-Cenozoic geotectonic pattern of SCS, the temporal and spatial distribution of the east paleo-Tethys structural domain in SCS and the relationship of recombination

关键词：海南岛琼南缝合带南海北缘琼南海盆琼南板块地质构造古特提斯

Nanoparticles Study on the Indosinian Xiaomei Shear Zone in the Hainan Island,China:Implication to Developmental Stage and Formation Mechanism of Nanoparticles in a Fault Zone

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Journal of Earth Science 2020年第5期31卷 957-967页

作者： Yang Zhou Baoyun Shen Yi Yan hailing liu Yan Yan Key Laboratory of Ocean and Marginal Sea Geology Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China University of Chinese Academy of Sciences Beijing 100049China Guangdong University of Technology Guangzhou 510006China South China Sea Institute of Oceanology Chinese Academy of SciencesGuangzhou 510301China

Nanoparticles are widely observed in the natural shear zone and experimental slip faults, which can lubricate the fault and significantly reduce the friction coefficient during seismic slip. But it is still not clear how the nanoparticles develop during the process of sliding. Clarifying the development stage of nanoparticles in a fault zone is critical to understanding the formation mechanisms of nanoparticles and the mechanism of fault weakening from a nanoperspective. In this study, four types of nanoparticles were found in the Indosinian Xiaomei shear zone, including spherical nanoparticles, rod-like nanograins and their aggregations. Ultramicroscopic analyses indicate that polished patches are highly smooth and composed of tightly packed spherical nanoparticles and well orientated rod-like nanograins during slip at high velocities. Meanwhile, the dome nanoparticles were formed by the calcite thermal decomposition due to frictional heat during highspeed sliding. The polygonal grooves are possibly related to high temperature(>900℃) grain boundary sliding deformation mechanisms. However, the porous and rough surfaces are accompanied by a series of holes and parallel "scratches" during a subsequent low-velocity stage. To ascertain the chemical composition of these nanoparticles, the energy dispersive spectrometer(EDS) test were conducted. The results suggest that materials rich in Fe, MgO and wollastonite are likely to form the rod-like nanograins, while materials rich in SiO2 are likely to form the spherical nanoparticles.

关键词： nanoparticles slip faults development stage Xiaomei shear zone composition

The Cenozoic activities of Yangjiang-Yitongdong Fault: insights from analysis of the tectonic characteristics and evolution processes in western Zhujiang(Pearl) River Mouth Basin

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Acta Oceanologica Sinica 2019年第9期38卷 87-101页

作者： Yuhan Li Rongwei Zhu hailing liu Xuelin Qiu Haibo Huang Key Laboratory of Ocean and Marginal Sea Geology South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou 510301 China Guangzhou Marine Geological Survey Guangzhou 510760 China University of Chinese Academy of Sciences Beijing 100049 China

The Yangjiang-Yitongdong Fault (YJF) is an important NW-trending regional fault, which divides the Zhujiang (Pearl) River Mouth Basin (ZRMB) into western and eastern segments. In Cenozoic, the northern continental margin of the South China Sea (SCS) underwent continental rifting, breakup, seafloor spreading and thermal subsidence processes, and the Cenozoic activities of YJF is one part of this series of complex processes. Two long NW-trending multichannel seismic profiles located on both sides of the YJF extending from the continental shelf to Continent-Ocean Boundary (COB) were used to study the tectonic and sedimentary characteristics of western ZRMB. Using the 2D-Move software and back-stripping method, we constructed the balance cross-section model and calculated the fault activity rate. Through the comprehensive consideration of tectonic position, tectonic evolution history, featured structure, and stress analysis, we deduced the activity history of the YJF in Cenozoic. The results showed that the YJF can be divided into two segments by the central uplift belt. From 65 Ma to 32 Ma, the YJF was in sinistral motion as a whole, inherited the preexisting sinistral motion of Mesozoic YJF, in which, the southern part of YJF was mainly in extension activity, controlling the formation and evolution of Yunkai Low Uplift, coupled with slight sinistral motion. From 32 Ma to 23.8 Ma, the sinistral motion in northern part of YJF continued, while the sinistral motion in southern part began to stop or shifted to a slightly dextral motion. After 23.8 Ma, the dextral motion in southern part of YJF continued, while the sinistral motion in northern part of YJF gradually stopped, or shifted to the slightly dextral motion. The shift of the YJF strike-slip direction may be related to the magmatic underplating in continent-ocean transition, southeastern ZRMB. According to the analysis of tectonic activity intensity and rift sedimentary structure, the activities of YJF in Cenozoic pl

关键词： Yangjiang-Yitongdong Fault Zhujiang (Pearl) River Mouth Basin tectonic evolution strike slip movement Cenozoic

Stochastic Differential Equations Driven by Multi-fractional Brownian Motion and Poisson Point Process

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Journal of Partial Differential Equations 2019年第4期32卷 352-368页

作者： liu hailing XU Liping LI Zhi School of Information and Mathematics Yangtze UniversityJingzhou 434023China

In this paper,we study a class of stochastic differential equations with additive noise that contains a non-stationary multifractional Brownian motion(mBm)with a Hurst parameter as a function of time and a Poisson point process of class(QL).The differential equation of this kind is motivated by the reserve processes in a general insurance model,in which between the claim payment and the past history of liability present the long term *** using the variable order fractional calculus on the fractional Wiener-Poisson space and a multifractional derivative operator,and employing Girsanov theorem for multifractional Brownian motion,we prove the existence of weak solutions to the SDEs under consideration,As a consequence,we deduce the uniqueness in law and the pathwise uniqueness.

关键词： Stochastic differential equations multifractional Brownian motion fractional Wiener-Poisson space Poisson point process Girsanov theorem

Novel quantum circuit implementation of Advanced Encryption Standard with low costs

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Science China(Physics,Mechanics & Astronomy) 2022年第9期65卷 11-26页

作者： ZhenQiang Li BinBin Cai HongWei Sun hailing liu LinChun Wan SuJuan Qin QiaoYan Wen Fei Gao State Key Laboratory of Networking and Switching Technology Beijing University of Posts and TelecommunicationsBeijing 100876China State Key Laboratory of Cryptology Beijing 100878China

In this study, we examine how the quantum circuit of the Advanced Encryption Standard(AES) can be optimized from two aspects, i.e., number of qubits and T-depth. To reduce the number of qubits, we present three kinds of improved quantum circuits of S-box for different phases in the AES. We found that the number of qubits in the round function can be decreased by introducing the circuit sending |a> to |S(a)>. As a result, compared with the previous quantum circuits where 400/640/768 qubits are required,our circuits of AES-128/-192/-256 only require 270/334/398 qubits. To reduce the T-depth, we propose a new circuit of AES's S-box with a T-depth of 4. Accordingly, the T-depth of our AES-128/-192/-256 quantum circuits become 80/80/84 instead of120/120/126 in a previous study.

关键词： AES S-box quantum circuit composite field arithmetic

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Basement of the South China Sea Area:Tracing the Tethyan Realm

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Acta Geologica Sinica(English Edition) 2011年第3期85卷 637-655页

作者： liu hailing ZHENG Hongbo WANG Yanlin LIN Qiujin WU Chaohua ZHAO Meisong DU Yunkong Key Laboratory of Marginal Sea Geology South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou 510301 China

The basement of the South China Sea（SCS）and adjacent areas can be divided into six divisions（regions）-Paleozoic Erathem graben-faulted basement division in Beibu Gulf,Paleozoic Erathem strike-slip pull-apart in Yinggehai waters,Paleozoic Erathem faulted-depression in eastern Hainan,Paleozoic Erathem rifted in northern Xisha（Paracel）,Paleozoic Erathem strike-slip extending in southern Xisha,and Paleozoic-Mesozoic Erathem extending in Nansha Islands（Spratly）*** Pre-Cenozoic basement in the SCS and Yunkai continental area are coeval within the Tethyan tectonic domain in the Pre-Cenozoic *** are formed on the background of the Paleo-Tethyan tectonic domain,and are important components of the Eastern Tethyan multi-island-ocean *** branches of the Eastern Paleo-Tethys tectonic domain,North Yunkai,North Hainan,and South Hainan sea basins,have evolved into the North Yunkai,North Hainan,and South Hainan suture zones, *** shows a distinctive feature of localization for the Pre-Cenozoic *** Qiongnan（*** Hainan）Suture Zone on the northern margin of the South China Sea can be considered the vestige of the principal ocean basin of Paleo-Tethys,and connected with the suture zone of the Longmucuo-Shuanghu belt-Bitu belt-Changning-Menglian-Bentong-Raub belt,the south extension of Bitu-Changning-Menglian-Ching Mai belt-Chanthaburi-Raub-Bentong belt on the west of South China Sea,and with the Lianhua-Taidong suture zone（a fault along the east side of Longitudinal Valley in Taiwan）-Hida LP/HT（low pressure-high temperature）metamorphic belt-Hida -marginal HP/LT metamorphic belt in southwestern Honshu of Japan,on the east of the South China *** Qiongbei（North Hainan）suture zone may eastwards extended along the Wangwu-Wenjiao fault zone,and connects with the Lufeng-Dapu-Zhenghe-Shangyu（Lianhuashan）deep fault zone through the Pearl River Mouth *** Meso-Tethys developed on the south of the South China *** Nansha Trough may be

关键词： Pre-Cenozoic basement East Tethys tectonic domain Tethyan sutures tectonic framework tectonic evolution South China Sea

U-Pb Isotope Geochronology of Syntectonic Granites from Hainan Island,South China:Constraints on Tectonic Evolution of the Eastern Paleo-Tethys Ocean

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Journal of Ocean University of China 2020年第6期19卷 1315-1330页

作者： ZHOU Yang YAN Yi liu hailing CAI Jianxin ZHOU Mengfei ZHANG Xinchang WANG Yin SHEN Baoyun Key Laboratory of Ocean and Marginal Sea Geology Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China University of Chinese Academy of Sciences Beijing 100049China South China Sea Institute of Oceanology Chinese Academy of SciencesGuangzhou 510301China Institute of Porous Flow and Fluid Mechanics Chinese Academy of SciencesLangfang 065007China SKL Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China School of Electromechanical Engineering Guangdong University of TechnologyGuangzhou 510006China

Since the recognition of the Indosinian orogeny in northern Vietnam,Triassic orogens have been widely identified around the western and southwestern boundaries of the South China *** paleo-Tethys sutures stretch from west to southeast,from Jinshajiang-Ailaoshan via NE Vietnam to Hainan Island;these sutures exhibit and develop voluminous Permian-early Triassic magmatism and numerous high-strain shear *** ophiolites related to the paleo-Tethys are lacking on Hainan Island,the eastward extension of the Indosinian orogeny and subduction and closure time of the paleo-Tethys Ocean on Hainan Island remain ***,an integrated kinematic and geochronological study has been conducted on two shear zones,called the Xiaomei and Mangsan shear zones.U-Pb zircon dating yields an age of early Triassic(252-251 Myr)for Xiaomei syntectonic granites which formed in the same tectonic setting and presented the similar nanoparticles to the Indosinian granites from Ailaoshan ductile shear zone,including the strawberry-like and flower-like *** NE-trending Mangsan shear zone represented by the gneissic granites with middle Permian ages(264-262 Myr)formed in the same tectonic setting as the Wuzhi-shan granites that were proposed as I-type *** middle Permian gneissic granites with arc affinity may represent an arc setting related to the NW subduction of the *** analyses reveal that granites with late Triassic ages(235-232 Myr)in the Xiaomei shear zone have the characteristics of A-type *** late Triassic extensional events on Hainan Island may be related to the subduction of the paleo-Pacific Plate beneath the East Asian continent.

关键词： Indosinian orogeny Hainan Island Xiaomei shear zone Mangsan shear zone syntectonic granites paleo-Tethys