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Chinese Journal of Chemistry 2020年第10期38卷 1040-1044页

作者： ming-ming gan Ying-Feng Han Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials ScienceNorthwest UniversityXi'anShaanxi 710127China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian 350002Chino

Summary of main observation and conclusion Controlling the regio-and stereochemistry of the photoproducts in solution is far more challenging for polvenes than for ***,a supramolecularly-controlled topochemical reaction of conjugated dienes in homogeneous system is developed,ultimately providing two cyclooctadiene-cored tetraimidazolium molecular receptors *** cyclooctadiene derivatives exhibited highly sensi-tive and selective fluorescence sensing for thymine relative to other biologically relevant species in aqueous solution at physiological *** the cycloo-ctadiene moieties and imidazolium units play important roles in the selective recognition *** presented supramolecularly-controlled method allows the simple yet rare selective photoconversion of flexible cyclooctadiene derivatives in *** study offers a new synthetic strategy for the preparation of functional molecules with potential for use in biological applic ations.

关键词： solution. diene chemical

Trinity： Walking on a User-Object-Tag Heterogeneous Network for Personalised Recommendations

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Journal of Computer Science & Technology 2016年第3期31卷 577-594页

作者： ming-Xin gan Lily Sun Rui Jiang Department of Management Science and Engineering Donlinks School of Economics and Management University of Science and Technology Beijing Beijing 100083 China Department of Statistics University of California Berkeley Berkeley CA 94720 U.S.A. School of Systems Engineering University of Reading Reading RG6 6UR U.K. Department of Automation Tsinghua University Beijing 100084 China

The rapid evolution of the Internet has been appealing for effective recommender systems to pinpoint useful information from online resources. Although historical rating data has been widely used as the most important information in recommendation methods, recent advancements have been demonstrating the improvement in recommendation performance with the incorporation of tag information. Furthermore, the availability of tag annotations has been well addressed by such fruitful online social tagging applications as CiteULike, MovieLens and BibSonomy, which allow users to express their preferences, upload resources and assign their own tags. Nevertheless, most existing tag-aware recommendation approaches model relationships among users, objects and tags using a tripartite graph, and hence overlook relationships within the same types of nodes. To overcome this limitation, we propose a novel approach, Trinity, to integrate historical data and tag information towards personalised recommendation. Trinity constructs a three-layered object-user-tag network that considers not only interconnections between different types of nodes but also relationships within the same types of nodes. Based on this heterogeneous network, Trinity adopts a random walk with restart model to assign the strength of associations to candidate objects, thereby providing a means of prioritizing the objects for a query user. We validate our approach via a series of large-scale 10-fold cross-validation experiments and evaluate its performance using three comprehensive criteria. Results show that our method outperforms several existing methods, including supervised random walk with restart, simulation of resource allocating processes, and traditional collaborative filtering.

关键词： recommender system tag-aware recommendation random walk with restart heterogeneous network socialtag

Transmission congestion tracing technique and its application to recognize weak parts of bulk power systems

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Journal of Modern Power Systems and Clean Energy 2017年第5期5卷 725-734页

作者： ming gan Kaigui XIE Chunyan LI State Key Laboratory of Power Transmission Equipment and System Security Chongqing UniversityChongqingChina Department of Information Engineering Logistical Engineering UniversityChongqingChina

A bulk power system is conventionally characterized by a complex structure with a large number of components. Each component generally has a different contribution to the transmission congestion(TC) of a system. Thus, a TC sharing method that can be used to evaluate the contribution of each component to the system TC and recognize the weak parts from the perspective of TC should be built. This paper presents a transmission congestion tracing(TCT) principle based on the failed component sharing principle and proportional sharing principle and a TCT model using the Monte Carlo simulation method. Case studies on the IEEE Reliability Test System indicate that the proposed method is effective and feasible.

关键词： Transmission congestion Congestion indices Congestion tracing principle Component congestion contribution Recognizing weak parts

Triggering star formation by both radiative and mechanical AGN feedback

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Research in Astronomy and Astrophysics 2013年第8期13卷 899-911页

作者： Chao Liu Zhao-ming gan Fu-Guo Xie Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical Observatory Chinese Academy of Sciences University of Chinese Academy of Sciences

We perform two dimensional hydrodynamic numerical simulations to study the positive active galactic nucleus （AGN） feedback which triggers, rather than suppresses, star formation. Recently, it was shown by Nayakshin et al. and Ishibashi et al. that star formation occurs when the cold interstellar medium （ISM） is squeezed by the impact of mass outflow or radiation pressure, respectively. Mass outflow is ubiquitous in this astrophysical context, and radiation pressure is also important if the AGN is luminous. For the first time in this subject, we incorporate both mass outflow feedback and radiative feedback into our model. Consequently, the ISM is shocked into shells by the AGN feedback, and these shells soon fragment into clumps and filaments because of Rayleigh-Taylor and thermal instabilities. We have two major findings：（1） the star formation rate can indeed be very large in the clumps and filaments. However, the resultant star formation rate density is too large compared with previous works, which is mainly because we ignore the fact that most of the stars that are formed would be disrupted when they move away from the galactic center. （2） Although radiation pressure feedback has a limited effect, when mass outflow feedback is also included, they reinforce each other. Specifically, in the gas-poor case, mass outflow is always the dominant contributor to feedback.

关键词： methods: numerical - accretion - shock waves - galaxies: active - galaxies: starburst

Supramolecular polymer network constructed by a functionalized polyimidazolium salt derived from metal-carbene template approach

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Science China Chemistry 2024年第4期67卷 1224-1228页

作者： ming-ming gan Zi-En Zhang Yi-Fan Zhang Heng Zhang Li-Ying Sun Ying-Feng Han Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education Xi’an Key Laboratory of Functional Supramolecular Structure and MaterialsCollege of Chemistry and Materials ScienceNorthwest UniversityXi’an 710127China

In this study,we present a supramolecular templating approach for constructing polyimidazolium salt containing crown ether and cyclobutane *** strategy involves the formation of metal-carbene templates,photochemical cycloaddition,and subsequent demetallation of metal *** by the host-guest chemistry between crown ether units and ammonium salts,we successfully fabricated a supramolecular polymer SPN1,which features imidazolium receptors and cyclobutane *** obtained SPN1 demonstrates outstanding reversible stimulus-response,antibacterial behavior and conductivity.

关键词： metal-carbene template crown ether polyimidazolium salt host-guest chemistry

Social Engineering Attack Classifications on Social Media Using Deep Learning

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Computers, Materials & Continua 2023年第3期74卷 4917-4931页

作者： Yichiet Aun ming-Lee gan Nur Haliza Binti Abdul Wahab Goh Hock Guan Faculty of Information and Communication Technology Universiti Tunku Abdul RahmanPerakMalaysia Faculty of Engineering Universiti Teknologi MalaysiaJohorMalaysia

In defense-in-depth,humans have always been the weakest link in ***,unlike common threats,social engineering poses vulnerabilities not directly quantifiable in penetration *** skilled social engineers trick users into giving up information voluntarily through attacks like phishing and *** Engineering(SE)in social media is structurally similar to regular posts but contains malicious intrinsic meaning within the sentence *** this paper,a novel SE model is trained using a Recurrent Neural Network Long Short Term Memory(RNN-LSTM)to identify well-disguised SE threats in social media *** use a custom dataset crawled from hundreds of corporate and personal Facebook ***,the social engineering attack detection pipeline(SEAD)is designed to filter out social posts with malicious intents using domain ***,each social media post is tokenized into sentences and then analyzed with a sentiment analyzer before being labelled as an anomaly or normal training ***,we train an RNN-LSTM model to detect five types of social engineering attacks that potentially contain signs of information *** experimental result showed that the Social Engineering Attack(SEA)model achieves 0.84 in classification precision and 0.81 in recall compared to the ground truth labeled by network *** experimental results showed that the semantics and linguistics similarities are an effective indicator for early detection of SEA.

关键词： Social engineering attack cybersecurity machine learning(ML) artificial neural network(ANN) random forest classifier decision tree(DT)classifier

Real-time Energy Management of Low-carbon Ship Microgrid Based on Data-driven Stochastic Model Predictive Control

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CSEE Journal of Power and Energy Systems 2023年第4期9卷 1482-1492页

作者： Hui Hou ming gan Xixiu Wu Kun Xie Zeyang Fan Changjun Xie Ying Shi Liang Huang the School of Automation Wuhan University of TechnologyWuhan 430070China the Shenzhen Research Institute Wuhan University of TechnologyShenzhen 518000China China Ship Development and Design Center Wuhan 430064China. Key Laboratory of Marine Intelligent Equipment and System Shanghai Jiao Tong UniversityShanghai 200240China the China Ship Development and Design Center Wuhan 430064China.

With increasing restrictions on ship carbon emis-sions,it has become a trend for ships to use zero-carbon energy such as solar to replace traditional fossil ***,uncer-tainties of solar energy and load affect safe and stable operation of the ship *** order to deal with uncertainties and real-time requirements and promote application of ship zero-carbon energy,we propose a real-time energy management strategy based on data-driven stochastic model predictive ***,we establish a ship photovoltaic and load scenario set consid-ering time-sequential correlation of prediction error through three *** steps include probability prediction,equal probability inverse transformation scenario set generation,and simultaneous backward method scenario set ***,combined with scenario prediction information and rolling op-timization feedback correction,we propose a stochastic model predictive control energy management *** each scenario,the proposed strategy has the lowest expected operational cost of control ***,we train the random forest machine learn-ing regression algorithm to carry out multivariable regression on samples generated by running the stochastic model predictive ***,a low-carbon ship microgrid with photovoltaic is *** results demonstrate the proposed strategy can achieve both real-time application of the strategy,as well as operational cost and carbon emission optimization performance close to stochastic model predictive *** Terms-Data-driven stochastic model predictive control,low-carbon ship microgrid,machine learning,real-time energy management,time-sequential correlation.

关键词： Data-driven stochastic model predictive control low-carbon ship microgrid machine learning real-time energy management time-sequential correlation.

Identification of Random Amplified Polymorphic DNA Markers Linked to Sex Determination in Calamus simplicifolius C. F. Wci

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Journal of Integrative Plant Biology 2005年第10期47卷 1249-1253页

作者： Hua YANG Si-ming gan Guang-Tian YIN Huang-Can XU Research Institute of Tropical Forestry Chinese Academy of Forestry Longdong Guangzhou 510520 China Zhejiang Academy of Forestry Hangzhou 310023 China

The random amplified polymorphic DNA （RAPD） molecular marker technique was used to determine the sex of Calamus simplicifolius C. F. Wei In the present study, DNA samples were extracted individually from 10 male and 10 female plants. After a total of 1 040 decamer primers had been tested, an approximate 500-bp male-specific DNA fragment was generated with the S 1443 primer. It is feasible to identify sex at the early stages of plant life, which is beneficial for improving breeding programs of this dioecious species. In addition, we have obtained a proper RAPD protocol that is useful for other species of rattan.

关键词： Calamus simplicifolius random amplified polymorphic DNA rattan sex determination.

The first draft genome assembly and data analysis of the Malaysian mahseer (Tor tambroides)

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Aquaculture and Fisheries 2023年第5期8卷 481-491页

作者： Melinda Mei Lin Lau Leonard Whye Kit Lim Hung Hui Chung Han ming gan Faculty of Resource Science and Technology Universiti Malaysia SarawakKota SamarahanSarawak94300Malaysia GeneSEQ Sdn Bhd Bandar Bukit BeruntungRawangSelangor48300Malaysia Centre for Integrative Ecology School of Life and Environmental SciencesDeakin UniversityGeelongVictoriaVIC3220Australia

The Malaysian mahseer(Tor tambroides),one of the most valuable freshwater fish in the world,is mainly targeted for human *** mitogenomic data of this species is available to date,but the genomic information is still *** the first time,we sequenced the whole genome of an adult fish on both Illumina and Nanopore *** hybrid genome assembly had resulted in a sum of 1.23 Gb genomic sequence from the 44,726 contigs found with 44 kb N50 length and BUSCO genome completeness of 87.6%.Four types of SSRs had been detected and identified within the genome with a greater AT abundance than that of *** protein sequences had been functionally annotated to public databases,namely GO,KEGG and COG.A maximum likelihood phylogenomic tree containing 52 Actinopterygii species and one Sarcopterygii species as outgroup was constructed,providing first insights into the genome-based evolutionary relationship of *** with other ray-finned *** data are crucial in facilitating the study of population genomics,species identification,morphological variations,and evolutionary biology,which are helpful in the conservation of this species.

关键词： Genome Gene annotation Tor tambroides Phylogenetic Functional annotation

Two-Colour Effect on the Ionization and Harmonic Generation of One-Dimensional He^(+)

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Chinese Physics Letters 2001年第8期18卷 1047-1049页

作者： QU Wei-Xing gan ming-Long XIA Yu-Xing LI Ru-Xin XU Zhi-Zhan Laboratory for High Intensity Optics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800 Department of Computer Scinece and Technology Shanghai Jiao Tong UniversityShanghai 200030 Department of Applied Physics Shanghai Jiao Tong UniversityShanghai 200030

Using the one-demensional ion mode,We theoretically investigate the dynamics ionization process and the high-order harmonic generation of the He^(+)subject to different kinds of two-colour laser pulse with the same fundamental frequency but various harmonic *** is found that from the results calculated by numerically solving the time-dependent Schrödinger equation,the two-colour laser pulse with the fundamental frequency and harmonic frequency enables the power spectrum of high-order harmonic generation to increase by a few orders of magnitude and the yield of He^(+)to enhance significantly when the harmonic frequency of laser pulse is close to the energy interval between the ground state and the first excited state of He^(+);even the harmonic field added into the pulse is much weaker than the fundamental one.

关键词： harmonic fundamental excited