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Strong Edge Coloring of Outerplane Graphs with Independent Crossings

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Acta Mathematicae Applicatae Sinica 2024年第2期40卷 467-477页

作者： ke-jie LI Xin ZHANG School of Mathematics and Statistics Xidian UniversityXi’an 710071China

The strong chromatic index of a graph is the minimum number of colors needed in a proper edge coloring so that no edge is adjacent to two edges of the same *** outerplane graph with independent crossings is a graph embedded in the plane in such a way that all vertices are on the outer face and two pairs of crossing edges share no common end *** is proved that every outerplane graph with independent crossings and maximum degreeΔhas strong chromatic index at most 4Δ-6 if Δ≥4,and at most 8 ifΔ≤*** bounds are sharp.

关键词： outer-1-planar graph IC-planar graph strong edge coloring crossing

Polyoxometalates based nanocomposites for bioapplications

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Rare Metals 2023年第11期42卷 3570-3600页

作者： Yao Cheng ke-jie Qin De-Jin Zang School of Pharmacy and Pharmaceutical Sciences&Institute of Materia Medica National Key Laboratory of Advanced Drug Delivery and SystemShandong First Medical University&Shandong Academy of Medical SciencesNHC Key Laboratory of Biotechnology Drugs(Shandong Academy of Medical Sciences)Key Lab for Rare&Uncommon Diseases of Shandong ProvinceJinan250117China

Health care and medical care have always been dominant topics in human *** field of precision medicine,iatrotechnics revolution and timely on-demand detection have continued to evolve in response to increasing demands from the ***,the emergence of innovative materials and their applications offer promising prospects for advancing global ***(POMs)are negatively-charged molecular metal oxides with well-defined structures,beautiful geometries and nanoscale *** to their vast diversity in composition,structure,nuclearity and charge,they constitute a significant subcategory of inorganic clusters that contain bridging oxygen atoms between two or more metal ***,POMs based nanocomposites have been widely applied in the field of disease diagnosis,anticancer therapy and antibacterial therapy as new generation bioactive *** this review,the recent advances of POMs based nanocomposites in bioapplications are summarized and the future perspectives are discussed.

关键词： Polyoxometalates(POMs) Disease diagnosis Anticancer therapy Antibacterial therapy Biological imaging

PBWA:A Provenance-Based What-If Analysis Approach for Data Mining Processes

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Chinese Journal of Electronics 2017年第5期26卷 986-992页

作者： ke jie DONG Hongbin TAN Chengyu LIANG Yiwen Computer School Wuhan University International School of Software Wuhan University

This paper presents a Provenance-based what-if analysis approach(PBWA) for data mining processes,so decision makers can examine the latest mining result under hypothetical business *** fills the gap that data mining only reveals past status of enterprises with historical *** information is a kind of metadata of data mining *** uses it to identify relevant operation path and intermediate results that is affected by hypothetical business *** refreshes the mining result by partially rerunning the affected *** from previous studies only for relational operations,PBWA can take more general operations into ***,it focuses on the whole mining *** demonstrate that when the affected ratio is less than 74% and 87% in different contexts,PBWA can achieve better time performance.

关键词： Data mining What-if analysis Data provenance Provenance(PROV)

Blackboard Mechanism Based Ant Colony Theory for Dynamic Deployment of Mobile Sensor Networks

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Journal of Bionic Engineering 2008年第3期5卷 197-203页

作者： Guang-ping Qi Ping Song ke-jie Li School of Aerospace Science and Engineering Beij＇ing Institute of Technology Beo＇ing 100081 P. R. China

A novel bionic swarm intelligence algorithm, called ant colony algorithm based on a blackboard mechanism, is proposed to solve the autonomy and dynamic deployment of mobiles sensor networks effectively. A blackboard mechanism is introduced into the system for making pheromone and completing the algorithm. Every node, which can be looked as an ant, makes one information zone in its memory for communicating with other nodes and leaves pheromone, which is created by ant itself in naalre. Then ant colony theory is used to find the optimization scheme for path planning and deployment of mobile Wireless Sensor Network （WSN）. We test the algorithm in a dynamic and unconfigurable environment. The results indicate that the algorithm can reduce the power consumption by 13% averagely, enhance the efficiency of path planning and deployment of mobile WSN by 15% averagely.

关键词： ant colony algorithm wireless sensor network blackboard mechanism bionic swarm intelligence algorithm

Pressure-sensitive plasticity of lithiated silicon in Li-ion batteries

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Acta Mechanica Sinica 2013年第3期29卷 379-387页

作者： ke-jie Zhao Yong-Gang Li Laurence Brassart Department of Nuclear Science and Engineering and Materials Science and Engineering Massachusetts Institute of Technology key Laboratory for Materials Physics Institute of Solid State Physics Chinese Academy of Sciences Institute of Mechanics Materials and Civil Engineering Université catholique de Louvain

Lithiation-induced plasticity is a key factor that enables Si electrodes to maintain long cycle life in Li-ion batteries. We study the plasticity of various lithiated sili-con phases based on first-principles calculations and iden-tify the linear dependence of the equivalent yield stress on the hydrostatic pressure. Such dependence may cause the compression-tension asymmetry in an amorphous Si thin film electrode from a lithiation to delithiation cycle, and leads to subsequent ratcheting of the electrode after cyclic lithiation. We propose a yield criterion of amorphous lithi-ated silicon that includes the effects of the hydrostatic stress and the lithiation reaction. We further examine the micro-scopic mechanism of deformation in lithiated silicon under mechanical load, which is attributed to the flow-defects mediated local bond switching and cavitation. Hydrostatic compression confines the flow defects thus effectively strength-ens the amorphous structure, and vice versa.

关键词： Li-ion batteries · Si · Pressure-sensitive plasticity · Ratcheting.

Synthesis of Diverse Aryliodine(Ⅲ)Reagents by Anodic Oxidationt

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Chinese Journal of Chemistry 2021年第3期39卷 627-632页

作者： Bing Zu jie ke Yonghong Guo Chuan He School of Chemistry and Chemical Engineering Harbin Institute of TechnologyHarbinHeilongiang 150080China Shenzhen Grubbs Institute and Department of Chemistry Guangdong Provincial Key Laboratory of CatalysisSouthern University of Science and TechnologyShenzhenGuangdong 518055China

Main observation and conclusion An anodic oxidation enabled synthesis of hypervalent iodinel(Ⅲ)reagents from aryl iodides is *** mild electrochem-ical conditions,a range of arylidine(Ⅲ)reagents including iodosylarenes,(difunctionaliodo)arenes,benziodoxoles and diaryliodoni-um salts can be efficiently synthesized and derivatized in good to excellent yields with high *** only electrons serve as the oxidation reagents,this method offers a more straightforward and sustainable manner avoiding the use of expensive or hazardous chemical oxidants.

关键词： Electrochemistry Oxidation Synthetic methods lodine Hypervalent compounds

Fluorescent Supramolecular Polymersomes Based on Pillararene/Paraquat Molecular Recognition for pH-controlled Drug Release

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Chinese Journal of Polymer Science 2020年第1期38卷 1-8,I0004页

作者： Run Zhao Yu-Juan Zhou ke-Cheng jie jie Yang Sebastien Perrier Fei-He Huang State key Laboratory of Chemical Engineering Center for Chemistry of High-Performance&Novel MaterialsDepartment of ChemistryZhejiang UniversityHangzhou 310027China Department of Chemistry The University of WarwickCoventry CV47ALUK Faculty of Pharmacy and Pharmaceutical Sciences Monash University381 Royal ParadeParkvilleVIC3052Australia Warwick Medical School The University of WarwickCoventry GV47ALUK

Researchers have put significant efforts on developing versatile fluorescent polymeric systems due to their promising biological/biomedical labelling, tracking, monitoring, imaging, and diagnostic applications. However, complicated organic/polymeric synthesis or post-modification of these functionalized platforms is still a big obstacle for their further application and thereby provides clear motivation for exploring alternative strategies for the design and fabrication of easily available fluorescent systems. The marriage of supramolecular polymers and fluorescent imaging can provide a facile and dynamic manner instead of tedious and time-consuming synthesis due to the dynamic and reversible nature of noncovalent interactions. Herein, based on water-soluble pillararene/paraquat molecular recognition, we successfully prepare two amphiphilic polypseudorotaxanes which can self-assemble into supramolecular polymersomes in water. These polymersomes can be reversibly destroyed and reformed by tuning the solution p H. Attributed to the aggregation-induced emission of tetraphenylethylene groups,intense fluorescence can be introduced into the obtained supramolecular polymersomes. Furthermore, p H-triggered release of an encapsulated water-insoluble drug(doxorubicin) from the self-assembled fluorescent supramolecular polymersomes is also investigated.

关键词： Fluorescent polymers Aggregation-induced emission Host-guest interactions Responsiveness

Quasiclassical Trajectory Study of the Reaction of CD4 with O(1D)

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Chinese Journal of Chemical Physics 2015年第4期28卷 -页

作者： ke-jie Shao Bi-na Fu Dong H.Zhang State key Laboratory of Molecular Reaction Dynamics and Center for Theoretical and Computational Chemistry Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China

Extensive quasiclassical trajectory calculations for the O(1D)+CD4 multichannel reaction were carried out on a new global potential energy surface fit by permutationally invariant polynomials. The product branching ratios, translational energy distributions, and angular distributions of OD+CD3, D+CD2OD/CD3O, and D2+DCOD/D2CO product channels were calculated and compared with the available experimental results. Good agreement between theory and experiment has been achieved, indicating small isotope effects for the title reaction. The O(1D)+CD4reaction mainly proceeds through the CD3OD intermediate via the trapped abstraction mechanism, with initial abstraction of the D atom rather than the direct insertion, followed by decomposition of CD3OD into various products.

关键词： Multichannel reaction Reaction dynamics Quasiclassical trajectory Potential energy surface

Numerical simulation on fluid flow behavior during 3-dimensional dendrite growth with random preference angle

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China Foundry 2022年第5期19卷 387-394页

作者： Qi Wang ke-jie Feng Shi-jie Zhang Chen-yu Li Ri Li School of Materials Science and Engineering Hebei University of TechnologyTianjin 300401China

The flow behavior of three-dimensional(3D)dendrite growth with random preferred angle under natural convection was studied by using the Lattice Boltzmann-Cellular Automata(LB-CA)method with dynamic and static *** this model,the temperature field,flow field and solute field calculated by Lattice Boltzmann method(LBM)and dendrite growth calculated by CA method were carried out in static and dynamic grids respectively,and the coupling between LBM and CA was performed by interpolation of calculation parameters between dynamic and static *** show that the asymmetry of solid phase distribution makes the streamline distribution more *** the initial stage of multiple dendrites growth,the fluid flow is relatively *** dendrites grow close to each other,the fluid flow is blocked and can only flow along the gap between *** the wall equiaxed-columnar-central equiaxed crystals transformation(ECET)process,dense eddy current is formed at the wall equiaxed crystals at ***,when the wall equiaxed crystals gradually develop into columnar crystals,the eddy current moves with the solid-liquid *** the central equiaxed crystals are formed,the eddy current at the front of the columnar crystals gradually *** eddies appear as the central equiaxed crystal grows.

关键词： two sets of grids randomly select preference angle three dimensional LB-CA model fluid flow