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Stacking control in graphene-based materials: A promising method for fascinating physical properties

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Frontiers of physics 2019年第2期14卷 45-46页

作者： Ji-liang Zhang Guang-Cun Shan Department of Energy and Materials Engineering Dongguk UniversitySeoul 04620Republic of Korea Department of Materials Science and Engineering City University of Hong KongKowloonHong Kong SARChina Institute of Quantum Sensing School of Instrumentation Science and Opto-Electronic EngineeringBeihang UniversityBeijing 100191China

Graphene, defined as a single atomic plane of graphite, is a semimetal with a small overlap between the valence and conduction bands. The stacking of graphene up to several atomic layers can lead to diverse physical properties, depending on the stacking method. Bi layer graphene is also a semimetal, adopting the AB-stacked (or Bernal-stacked) structure or the rare AA-stacked structure . Trilayer or few-layer graphene (FLG) can be semimetals or semiconductors, depending on whether they adopt Bernal (ABA) stacking or rhoinbohedral (ABC) stacking.

关键词： graphene-based materials few-layer graphene (FLG) adopt Bernal (ABA)

ANALYSIS AND MODELING ON CULTIVATED LAND CONVERSION——Case Study of Hebei Province

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Chinese Geographical Science 2006年第1期16卷 18-23页

作者： liang Shuang JIANG Nan GU Shu-zhong Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 P. R. China Development Research Centre of the Ministry of Water Resources Beijing 100038 P. R. China

： With the acceleration of thc urbanization and industrialization of China, it is inevitable that cultivated land convcrts to built-up land for industrial, commercial and residential uses, which would impose pressure both on food security and on the sustainability of urbanization itself tbr such a country with large population and few cultivated land. Based on thc three-time Landsat Thematic Mapper （TM） digital imagcs and statistic data of Hebei Province, the general facts of cultivated land conversion and its driving forces were analyzcd by establishing econometric model in this papcr. Some conclusions werc drawn as the following： during 1985 2000, the rate of cultivated land converting to built-up arca in Hebei was 4.01% or 0.27% pcr year. Of all the converted cultivated land, 20.96% was converted to built-up area and of all the new built-up areas, 83.4% was converted from cultivated land; meanwhile the conversion is uneven not only in time but also in space; factors such as edgc length shared by cultivated land and built-up land, agricultural value per hectare, non-agriculture value per hectarc, GDP, total population, farmer＇s net income per capita and time had significant effects on this conversion.

关键词： cultivated land conversion driving forces economctric model Hebei Province

Mean square consensus of uncertain discrete-time stochastic multi-agent systems with x-dependent noise

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Journal of Control and Decision 2020年第2期7卷 196-213页

作者： Shuang liang Zhongxin Liu zengqiang Chen College of Artificial Intelligence Nankai UniversityTianjin 300353People’s Republic of China Tianjin Key Laboratory of Intelligent Robotics Nankai UniversityTianjin 300353People’s Republic of China

In this paper, the mean square consensus control problem is investigated for linear uncertain discrete-time multi-agent systems withx-dependent noise and time-varying delays. Under undirected connected topology, the robust consensus problem of multi-agent systems is converted into the robust stabilisation problem for thediscrete-time stochastic systems. By utilising Lyapunov functionaland the linear matrix inequality method, some new sufficient conditions are derived to guarantee the consensus of uncertain discretetime stochastic multi-agent systems. Based on the state feedbackcontroller protocol with time-varying delays, a new consensus criterion is established for the discrete-time stochastic multi-agent systems with parameter uncertainties. Finally, numerical examples areprovided to illustrate the effectiveness of the proposed results.

关键词： Discrete multi-agent systems mean square consensus parameter uncertainties time-varying delays linear matrix inequalities

DIRECT　CONVERSION　OF　3-ACETOXYBENZOFURANS　TO　3-METHOXYBENZOFURANS

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Chinese Chemical Letters 1996年第5期7卷 419-422页

作者： Wang, ZM liang, XT Chen, SF CHINESE ACAD MED SCI INST MAT MEDBEIJING 100050PEOPLES R CHINA CHINESE ACAD MED SCI PEKING UNION MED COLLBEIJING 100050PEOPLES R CHINA CHINESE ACAD TRADIT CHINESE MED INST CHINESE MAT MEDBEIJING 100700PEOPLES R CHINA

Abstract: A direct conversion of 3-acetoxybenzofurans to 3-methoxybenzofurans was realized by refluxing in anhydrous methanolic solution containing hydrogen chloride.

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An Image Encryption Approach Using a Shuffling Map

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Communications in Theoretical Physics 2009年第11期52卷 876-880页

作者： XIAO Yong-liang XIA Li-Min School of Information Science and Engineering Central South University Changsha 410083 China Department of Information Management Hunan College of Finance and Economics Changsha 410205 China

A new image encryption approach is ***,a sort transformation based on nonlinear chaoticalgorithm is used to shuffle the positions of image *** the states of hyper-chaos are used to change the greyvalues of the shuffled image according to the changed chaotic values of the same position between the above nonlinearchaotic sequence and the sorted chaotic *** experimental results demonstrate that the image encryptionscheme based on a shuffling map shows advantages of large key space and high-level *** with someencryption algorithms,the suggested encryption scheme is more secure.

关键词： image encryption hyper-chaotic shuffling sort

Network Pharmacology-Based Study of the Anti-Oxidative Mechanism of San Miao Wan in Treatment of Arthritis

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World Journal of Traditional Chinese Medicine 2022年第1期8卷 100-109页

作者： Xue-Qin Hao Yan-Qi Kou Xiao-Juan Xie Jiao Wang Jing-Bo Lv Jie Su Ke-xin Liu Gao-Feng liang Department of Anatomy and Histoembryology School of Basic Medical SciencesHenan University of Science and Technology Department of Anesthesiology The First Affiliated Hospital of Henan University of Science and Technology Department of Veterinary Medicine College of Animal Science and TechnologyHenan University of Science and TechnologyLuoyang Department of Pathology School of Basic Medical SciencesHenan University of Science and TechnologyHenan ProvinceChina

San Miao Wan(SMW) is a traditional Chinese medicine(composed of Cortex phellodendri, Rhizoma atractylodes, and Radix cyathulae) widely used in China to treat arthritis;however, its underlying mechanism remains unknown. We established the target gene library of SMW and performed gene ontology enrichment analysis of related target genes. The component-target protein-protein interaction(PPI) network of SMW and the disease-target PPI network of arthritis were merged to form a core PPI network. Finally, the anti-oxidative effect of SMW for treating arthritis was evaluated in a rat arthritis model induced by sodium urate. The results showed that R. atractylodes contained four active components with 68 target proteins, R. cyathulae contained two active components and 139 target proteins, and C. phellodendri contained eight active components and 275 target proteins. The target genes of R. cyathulae were highly related to the synthesis and metabolism of reactive oxygen species, while target genes of R. atractylodes and C. phellodendri were highly related to the circulatory system. The component-target PPI network of SMW and the disease-target PPI network of arthritis predominantly overlapped. In vivo, SMW effectively reduced knee swelling induced by sodium urate, decreased serum malondialdehyde levels, and increased serum superoxide dismutase levels. In conclusion, the therapeutic effects of SMW in arthritis are associated with its anti-oxidative properties.

关键词： Anti-oxidation arthritis network pharmacology San Miao Wan

Colorimetric characterization of imaging device by total color difference minimization

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第6期7卷 1041-1045页

作者： MOU Tong-sheng SHEN Hui-liang State Key Laboratory of Modern Optical Instrumentation Zhejiang University Hangzhou 310027 China Department of lnformation and Electronic Engineering Zhejiang University Hangzhou 310027 China

Colorimetric characterization is to transform the device-dependent responses to device-independent colorimetric values, and is usually conducted in CIEXYZ space. However, the optimal solution in CIEXYZ space does not mean the mini-mization of perceptual error. A novel method for colorimetric characterization of imaging device based on the minimization of total color difference is proposed. The method builds the transform between RGB space and CIELAB space directly using the downhill simplex algorithm. Experimental results showed that the proposed method performs better than traditional least-square (LS) and total-least-square (TLS) methods, especially for colors with low luminance values.

关键词： Colorimetric characterization Color difference Imaging device

Large Number,Dark Matter,Dark Energy,and Superstructures in the Universe

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Communications in Theoretical Physics 2009年第3期51卷 575-576页

作者： HUANG Wu-liang HUANG Xiao-Dong Institute of High Energy Physics Chinese Academy of Sciences P.O. Box 918（3） Beijing 100049 China Department of Mathematics University of California Los Angeles Los Angeles CA 90095 U.S.A.

Since there may exist dark matter particles ν and δ with mass - 10^-1 e V in the universe, the superstructures with a scale of 10^19 solar masses （large number A - 10^19） appeared during the era near and before the hydrogen recombination. Since there are superstructures in the universe, there may be no necessity for the existence of dark energy. For checking the superstructure in the universe by CMB anisotropy, we need to measure CMB angular power spectrum especially around ten degrees across the sky- in more details, While neutrino u is related to electroweak unification, the fourth stable elementary particle 6 may be related to strong-gravity unification, which suggests p ＋ p^- → n ＋ δ^- and that some new baryons appeared in the TeV region.

关键词： large number dark matter dark energy stable elementary particle superstructure

Present Situation and Benefit Analysis of the Straw Recycling in Southwest China

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Asian Agricultural Research 2010年第2期2卷 40-44页

作者： GAO Xue-song zeng Min DENG liang-ji ZHONG Chang-biao Resources and Environment Institute Sichuan Agricultural UniversityYaan 625014China Key Laboratory of Land Information in Sichuan Province Yaan 625014China Faculty of Business Ningbo UniversityNingbo 315211China

Currently,sustainable agricultural development in China is facing some big challenges of how to promote the present developing pattern,to lengthen material transformation chain,to increase the utilization rate of material and energy in agricultural system and to form a healthy agricultural ecological circulation *** is a major country producing crops and *** high-efficient utilizing pattern of straw and technological system are needed *** to the field survey,we point out the status of straw utilization and the main recycling pattern in typical farming areas in Sichuan,China through the literature review and data *** on the statistical analysis,the economic,environmental and social benefits of each utilization way are analyzed,and the methods and measures are proposed in order to promote recycling utilization of the straw in Sichuan farming area,and to offer theoretical guidance for energy saving,food safety,and pollution control.

关键词： Straw utilization Present situation Benefit Sichuan China