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Optimal Path Embedding in the Exchanged Crossed Cube

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Journal of Computer Science & Technology 2017年第3期32卷 618-629页

作者： dong-Fang Zhou Jian-Xi Fan Cheng-Kuan lin bao-Lei Cheng jing-Ya Zhou zhao Liu School of Computer Science and Technology Soochow University Suzhou 215006 China Collaborative Innovation Center of Novel Software Technology and Industrialization Nanjing University Nanjing 210000 China

The （s＋t＋1）-dimensional exchanged crossed cube, denoted as ECQ（s, t）, combines the strong points of the exchanged hypercube and the crossed cube. It has been proven that ECQ（s, t） has more attractive properties than other variations of the fundamental hypercube in terms of fewer edges, lower cost factor and smaller diameter. In this paper, we study the embedding of paths of distinct lengths between any two different vertices in ECQ（s, t）. We prove the result in ECQ（s, t）： if s≥3, t≥3, for any two different vertices, all paths whose lengths are between max{9,「s＋1/2」＋「t＋1/2＋4}and 2s＋t＋1？1 can be embedded between the two vertices with dilation 1. Note that the diameter of ECQ（s, t） is「s＋1/2 」＋「t＋1/2 」＋2. The obtained result is optimal in the sense that the dilations of path embeddings are all 1. The result reveals the fact that ECQ（s, t） preserves the path embedding capability to a large extent, while it only has about one half edges of CQn.

关键词： interconnection network exchanged crossed cube path embedding parallel computing system

Two new phenolic compounds from Artemisia sphaerocephala

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Chinese Chemical Letters 2007年第5期18卷 551-553页

作者： dong bao zhao lin Xi Li Xiu Hua Liu Ming jing Li Wen ling Wang College of Chemistry and Chemical Engineering Henan University Kaifeng 475001 China Institute of Natural Products ＆ Medicine Chemistry Henan University Kaifeng 475001 China Xuchang General Cigarette Factory Xuchang 461000 China

Two new phenolic compounds were isolated from whole plant ofArtemisia sphaerocephala. The structures were elucidated on the basis of spectroscopic methods as 4-（1-hydroxylethyl）-phenol-l-O-β-D-glucopyranoside and 4... 详细信息

关键词： Artemisia sphaerocephala Phenolic Spectroscopic methods

Modular assembly of Co4-thiacalix[4]arene units and Keggin-type SiW12O40 for visible-light photothermal conversion

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Tungsten 2025年第1期 112-119页

作者： Jia-Hui Li Qing zhao dong-Ao Mao Kun Zhou bao-Kuan Chen Yan-Feng Bi School of Petrochemical Engineering Liaoning Petrochemical University

The construction of metal-organic coordination clusters（MCCs） using modular secondary building units is an important method for preparing functional *** this study,two new MCCs modularly assembled from Keggin-type {SiW12O40}H4TC4A=p-tert-Butylthiacalix[4]arene(SiW12) units and thiacalixarene-supported Co4-thiacalix[4]arene(Co4-TC4A polynuclear second-building units（PSBUs,H4TC4A=p-tert-Butylthiacalix[4]arene） are *** two MCCs,abbreviated as Co4-SiW12and Co8-SiW12,were structurally characterized by single-crystal X-ray *** Co4-SiW12is a supramolecular structure involving cation-anion interactions between Co4-TC4A PSBUs and ***8-SiW12features "barbell-like" shapes with two Co4-TC4A coordinatively linked to a Keggin-type SiW12unit on opposite via W-O_t-Co *** coordination of Co4-TC4A to SiW12in Co8-SiW12resulted in significantly improved photothermal conversion performances compared with Co4-SiW12and pure SiW12or ***-gap determination and photophysical analysis combined with density functional theory calculations indicated the binding mode between Co4-TC4A PSBUs and SiW12,which considerably influences the way of electron transport and the conversion ability of visible light to heat.

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Hepatitis B virus reactivation in rheumatoid arthritis

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World Journal of Clinical Cases 2022年第1期10卷 12-22页

作者： Ya-Li Wu jing Ke bao-Yu Zhang dong zhao Center for Endocrine Metabolism and Immune Diseases Beijing Luhe HospitalCapital Medical UniversityBeijing 101149China

Rheumatoid arthritis(RA)is an autoimmune disease characterized by proliferative synovitis,which can cause cartilage and bone damage as well as functional ***-modifying anti-rheumatic drugs have significantly improved the prognosis of RA ***,people with RA,when combined with hepatitis B virus(HBV)infection,may experience reactivation of HBV during treatment with anti-rheumatic *** outcome of HBV reactivation(HBVr)varies from liver inflammation to liver failure,while insufficient HBV screening in RA patients has been reported in various ***,it is necessary to identify patients at high risk before starting immunosuppressive *** immune response plays an important role in anti-HBV ***,most anti-rheumatic drugs exert an inhibitory effect on the body’s immune system,resulting in ***,it is necessary to conduct a comprehensive evaluation based on host factors,viral factors,and drug *** this paper,we summarize the mechanism of HBVr,the risk of HBVr caused by anti-rheumatic drugs,and the appropriate diagnosis and treatment process for RA patients so that clinicians can have a more comprehensive understanding of HBVr in RA patients.

关键词： Rheumatoid arthritis Hepatitis B virus reactivation Disease-modifying antirheumatic drugs Risk factors

Critical Role of Ethylene-Propylene Block Copolymer in Impact Polypropylene Copolymer

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Chinese Journal of Polymer Science 2024年第3期42卷 344-351,I0007页

作者： Yu-Hui Tang Na Zhang Wei bao Wei jiang Yuan lin zhao-Hui Su State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China

Ethylene-propylene block copolymer(EbP) is a vital component in impact polypropylene copolymer(IPC), yet its distribution in the multiphase composite material and how it influences the phase structure and the mechanical properties are not well understood. In this work,four IPCs were investigated by atomic force microscopy-infrared(AFM-IR) to assess the phase compositions in situ, based on which in conjunction with the chain microstructure information obtained ex situ the distributions of the copolymer components were derived for each alloy. For the IPCs whose EbP comprises long P and long E segments, the EbP fraction was found to phase separate from the rubber and the PP matrix to form the cores of the disperse particles with the E-P segmented copolymer(EsP). In contrast, in the IPC with EbP composed of long P and short E segments, the EbP fraction formed an outer shell for the rubber particles with the cores comprising the EsP alone, and this IPC, containing a lower E comonomer content than its counterpart, exhibited both better impact resistance and higher flexural modulus. These results clarify how the chain structure of EbP governs the phase morphology in IPC, which in turn impacts the properties of the composite material.

关键词： Impact polypropylene copolymers AFM-IR Ethylene-propylene block copolymers Core-shell rubber particles

Physiological response of flag leaf and yield formation of winter wheat under different spring restrictive irrigation regimes in the Haihe Plain,China

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Journal of Integrative Agriculture 2021年第9期20卷 2343-2359页

作者： LIU Xue-jing YIN bao-zhong HU zhao-hui bao Xiao-yuan WANG Yan-dong ZHEN Wen-chao College of Agronomy Hebei Agricultural UniversityBaoding 071001P.R.China State Key Laboratory of North China Crop Improvement and Regulation Baoding 071001P.R.China Key Laboratory of Crop Growth Regulation of Hebei Province Baoding 071001P.R.China College of Life Science Hebei Agricultural UniversityBaoding 071001P.R.China

In order to identify the optimum period of spring water-restrictive irrigation for winter wheat(Triticum aestivum L.)in the Haihe Plain,China and elucidate its effects on flag leaf senescence and yield formation,field experiments were conducted at the Xinji Experimental Station of Hebei Agricultural University from 2016 to 2019 by using different irrigation regimes in spring,including the conventional regime involving two irrigation periods(control(CK),the 3-leaf unfolding stage and the anthesis stage)and a series of single,restrictive irrigation regimes(SRI)comprising irrigation at the 3-leaf unfolding stage(3 LI),4 LI,5 LI,and 6 *** are five major findings:(1)The senescence(determined by the green leaf area,GLA)in the 4 LI treatment occurred moderately earlier than that in CK,showed no significant difference with that in 5 LI and 6 LI,and occurred significantly later than that in 3 LI.(2)Compared with other SRI treatments,the GLA value and photosynthetic rate in 4 LI were 14.82 and 20.1%higher,*** analysis of flag leaf also revealed that the mesophyll cells and chloroplasts were irregularly arranged under drought stress in 3 LI and 6 LI;however,drought stress had minimal negative effects on the microstructure in 4 LI and 5 LI.(3)Postponed irrigation in spring could significantly increase superoxide dismutase(SOD)and catalase(CAT)activities in the early stage of grain filling;however,these activities would subsequently *** the four SRI treatments,the overall enzyme activities were the highest in 4 LI,and the combined malondialdehyde(MDA)content in flag leaves in 4 LI and 5 LI was 14.5%lower on average than that in 3 LI and 6 LI.(4)The soluble sugar(SS)and proline(Pro)contents in 4 LI were the highest among the four SRI treatments;however,they were lower than those in *** abscisic acid(ABA)hormone content in 4 LI and 5 LI was lower than that in 3 LI and 6 LI,respectively,suggesting a smaller drought stress effect in 4 LI a

关键词： winter wheat restrictive irrigation flag leaf physiological response yield formation

Water source identification in mines combining LIF technology and ResNet

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Journal of Mountain Science 2023年第11期20卷 3392-3401页

作者： YAN Peng-cheng zhao Yu-ting LI Guo-dong WANG jing-bao WANG Wen-chang State Key Laboratory of Deep Coal Mine Exploitation Response and Disaster Prevention Anhui University of Science andTechnologyHuainan 232001China School of Electrical and Information Engineering Anhui University of Science and TechnologyHuainan 232001China Collaborative Innovation Center of Mine Intelligent Equipment and Technology Anhui University of Science&TechnologyHuainan 232001China

The problem of mine water source has always been an important hidden danger in mine safety *** water source under the mine working face may lead to geological disasters,such as mine collapse and water *** research background of mine water source identification involves many fields such as mining production,environmental protection,resource utilization and technological *** is a comprehensive and interdisciplinary subject,which helps to improve the safety and sustainability of mine ***,timely and accurate identification and control of mine water source is very important to ensure mine production ***-Induced Fluorescence(LIF)technology,characterized by high sensitivity,specificity,and spatial resolution,overcomes the time-consuming nature of traditional chemical *** this experiment,sandstone water and old air water were collected from the Huainan mining area as original *** types of mixed water samples were prepared by varying their proportions,in addition to the two original water samples,resulting in a total of seven different water samples for *** preprocessing methods,namely,MinMaxScaler,StandardScaler,Standard Normal Variate(SNV)transformation,and Centering Transformation(CT),were applied to preprocess the original spectral data to reduce noise and *** was determined as the optimal preprocessing method based on class discrimination,data distribution,and data *** maintain the original data features while reducing the data dimension,including the original spectral data,five sets of data were subjected to Principal Component Analysis(PCA)and linear Discriminant Analysis(LDA)dimensionality *** comparing the clustering effect and Fisher's ratio of the first three dimensions,PCA was identified as the optimal dimensionality reduction ***,two neural network models,CT+PCA+CNN and CT+PCA+ResNet,were constructed by combining Convolutional Neural Networks(

关键词： Water source identification Mine safety LIF technology CT PCA ResNet

Suppression of Stokes heating processes and improved optomechanical cooling with frequency modulation

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Communications in Theoretical Physics 2022年第4期74卷 42-51页

作者： Yang bao Qinghong Liao Qingmin zhao jing Wu Department of Electronic Information Engineering Nanchang UniversityNanchang 330031China State Key Laboratory of Low-Dimensional Quantum Physics Department of PhysicsFrontier Science Center for Quantum InformationTsinghua UniversityBeijing 100084China

Ground-state cooling of mesoscopic mechanical objects is still a major challenge in the unresolved-sideband *** present a frequency modulation(FM)scheme to achieve cooling of the mechanical resonator to its ground-state in a double-cavity optomechanical system containing a mechanical *** mean phonon number is determined by numerically solving a set of differential equations derived from the quantum master *** to efficient suppression of Stokes heating processes in the presence of FM,the ground-state cooling,indicated by numerical calculations,is significantly achievable,regardless of whether in the resolved-sideband regime or the unresolved-sideband ***,by choosing parameters reasonably,the improvement of the quantum cooling limit is found to be capable of being positively correlated with the modulation *** method provides new insight into quantum manipulation and creates more possibilities for applications of quantum devices.

关键词： ground-state cooling Stokes heating processes frequency modulation unresolved sideband

Intramolecular Charge Transfer Dual Fluorescence pH Sensing using p-Dibutylaminobenzoic Acid-β-cyclodextrin Inclusion Complex

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Chinese Chemical Letters 2003年第5期14卷 495-498页

作者： Li Rong lin zhao LI Wen Liang YANG Hong CHEN Yun bao jiang Department of Chemistry and the MOE Key Laboratory of Analytical Sciences Xiamen UniversityXiamen 361005

The intramolecular charge transfer dual fluorescence of p-dibutylaminobenzoic acid-b-cyclodextrin inclusion complex showed a substantially higher sensitivity toward aqueous solution pH variation when compared with that of p-dibutylaminobenzoic acid alone, which established a new principle for direct CT fluorescence sensing in aqueous solution by using the CT fluorophore-cyclodextrin inclusion complex.

关键词： pH sensing dual fluorescence intramolecular charge transfer cyclodextrin inclusion complex p-dibutylaminobenzoic acid.