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Identifying Spatial Heterogeneity in the Effects of High-Tech Firm Density on Housing Prices:Evidence from Guangdong-hong Kong-Macao Greater Bay Area,China

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Chinese Geographical Science 2023年第2期33卷 233-249页

作者： WANG Yang WU Kangmin ZHANG hong’ou LIU Yi YUE Xiaoli Faculty of Geography Yunnan Normal UniversityKunming 650500China Guangzhou Institute of Geography Guangdong Academy of SciencesGuangzhou 510070China Institute of Strategy Research for Guangdong Hong Kong and Macao Greater Bay AreaGuangzhou 510070China Key Laboratory of Regional Sustainable Development Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China School of Architecture and Urban Planning Guangdong University of TechnologyGuangzhou 510090China

Innovation capitalization is a new concept in innovation geography *** research on a city scale has proven that innovation is an important factor affecting housing prices and verified that innovation has a capitalization ***,few studies investigate the spatial heterogeneity of innovation ***,case verification at the urban agglomeration scale is ***,this study proposes a theoretical framework for the spatial heterogeneity of innovation capitalization at the urban agglomeration *** the Guangdong-hong Kong-Macao Greater Bay Area(GHMGBA),China as a case study,the study investigated the spatial heterogeneity of the influence of high-tech firms,representing innovation,on housing *** work verified the spatial heterogeneity of innovation *** study constructed a data set influencing housing prices,comprising 11 factors in 5 categories(high-tech firms,convenience of living facilities,built environment,the natural environment,and the fundamentals of the districts)for 419 subdistricts in the *** the global scale,the study finds that high-tech firms have a significant and positive influence on housing prices,with the housing price increasing by 0.0156%when high-tech firm density increases by 1%.Furthermore,a semi-geographically weighted regression(SGWR)analysis shows that the influence of high-tech firms on housing prices has spatial *** areas where high-tech firms have a significant and positive influence on housing prices are mainly in the GuangzhouFoshan metropolitan area,western Shenzhen-Dongguan,north-central Zhongshan-Nansha district,and Guangzhou—all areas with densely distributed high-tech *** results confirm the spatial heterogeneity of innovation capitalization and the need for further discussion of its scale and spatial *** study offers implications for relevant GHMGBA administrative authorities for spatially differentiated development strateg

关键词： innovation capitalization high-tech firms housing prices spatial heterogeneity semi-geographically weighted regression(SGWR) Guangdong-hong Kong-Macao Greater Bay Area(GHMGBA)

Lattice structure adaptive IIR notch filter based on least square kurtosis

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Journal of Systems Engineering and Electronics 2009年第6期20卷 1188-1192页

作者： Liang hong hong Kang Yang Changsheng Coll. of Marine Northwestern Polytechnical Univ. Xi'an 710072 P. R. China

A new variable step-size algorithm for a second-order lattice form structure adaptive infinite impulse response （IIR） notch filter to detection and estimation frequency of sinusoids in Gaussian noises is proposed. Utilizing least square kurtosis of output signals as a cost function, the new gradient-based algorithm to update frequency of the adaptive IIR notch filter and the new variable step-size algorithm are given. The computer simulation results show that the proposed algorithm has better ability in suppressing colored Gaussian noises and better accuracy in estimating parameters at low SNR than previous algorithms.

关键词： adaptive IIR notch filter least square kurtosis variable step-size colored Gaussian noise.

Deviating from the nanorod shape： Shape-dependent plasmonic properties of silver nanorice and nanocarrot structures

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Frontiers of physics 2016年第2期11卷 45-55页

作者： hong-Yan Liang hong Wei hong-Xing Xu Center for Nanoscience and Nanotechnology School of Physics and Technology and Institute for Advanced Studies Wuhan University Wuhan 430072 China Institute of Physics Chinese Academy of Sciences and Beijing National Laboratory for Condensed Matter Physics Beijing 100190 China

Noble metallic nanostructures exhibit special optical properties resulting from excitation of surface plasmons. Among the various metallic nanostructures, nanorods have attracted particular attention because of their unique and intriguing shape-dependent plasmonic properties. Nanorods can sup- port transverse and longitudinal plasmon modes, the latter ones depending strongly on the aspect ratio of the nanorod. These modes can be routinely tuned from the visible to the near-infrared spectral regions. Although nanorods have been investigated extensively, there are few studies de- voted to nanostructures deviating from the nanorod shape. This review provides an overview of recent progress in the development of two kinds of novel quasi-one-dimensional silver nanostruc- tures, nanorice and nanocarrot, including their syntheses, crystalline characterizations, plasmonic property analyses, and performance in plasmonic sensing applications.

关键词： electron energy loss spectroscopy (EELS) localized surface plasmon resonance (LSPR),multipolar longitudinal plasmon mode nanocarrot nanorice plasmonic sensing

DARBOUX EQUATIONS AND ISOMETRIC EMBEDDING OF RIEMANNIAN MANIFOLDS WITH NONNEGATIVE CURVATURE IN R

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Chinese Annals of Mathematics,Series B 1999年第2期20卷 123-136页

作者： hong JIAXING Fudan univ Inst Math Shanghai 200433 Peoples R China

The present paper is concerned with the existence of golbal smooth solutions for the homogeneous Dirichlet boundary value problem of the Darboux equation and the case degenerate onthe boundary is contained As some app... 详细信息

关键词： Darboux equation Isometric embedding Riemannian manifold Nonnegative curvature

Intercontinental comparison of phylogenetic relatedness in introduced plants at the transition from naturalization to invasion:A case study on the floras of South Africa and China

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Plant Diversity 2023年第4期45卷 363-368页

作者： hong Qian Research and Collections Center Illinois State Museum1011 East Ash StreetSpringfieldIL 62703USA

Invasive species may pose significant threats to biodiversity and ecosystem structure and *** number of introduced species that have become invasive is substantial and is rapidly *** potentially invasive species and preventing their expansion are of critical importance in invasion *** relatedness between invasive and native species has been used in predicting invasion *** studies on the phylogenetic relatedness of plants at the transition from naturalization to invasion have shown mixed results,which may be because different methods were used in different ***,I use the same method to analyze two comprehensive data sets from South Africa and China,using two phylogenetic metrics reflecting deep and shallow evolutionary histories,to address the question whether the probability of becoming invasive is higher for naturalized species distantly related to the native *** study suggests that the probability of becoming invasive is higher for naturalized species closely related to the native *** finding of my study is consistent with Darwin's preadaptation hypothesis.

关键词： Angiosperms Exotic species Introduced species Invasive species Naturalized species Phylogenetic relatedness

Crystal Structures and Antimicrobial Activity of Two Phosphorus Compounds

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Chinese Journal of Structural Chemistry 2005年第10期24卷 1211-1216页

作者： SHEN Xiao-Qing LIU hong-Lei ZHANG hong-Yun ZHANG hong-Quan MAO hong-Yan WU Qing-An ZHU Yu HOU hong-Wei Department of Chemistry Zhengzhou University Zhengzhou 450052 China College of Public Health Zhengzhou University Zhengzhou 450052 China

One phosphorus heterocycle compound 1, C13H13N2OPS, was synthesized by the reaction of Lawesson＇s reagent （LR） with o-phenylene diamine. The crystal belongs to the orthorhombic system, space group P212121 with a = 5.5274（11）, b = 8.1603（16）, c = 28.830（6） A, V = 1300.4（4） A^3, Z = 4, Mr= 276.28, Dc = 1.411 g/cm^3, F（000） = 576,μ = 0.360 mm^-1, R = 0.0259 and wR = 0.0652 for 1414 observed reflections with I 〉 2σ（I）. While compound 2, C14H17N2O2PS, was obtained as a ring-cleavage product of compound 1. This crystal is of monoclinic system, space group P21/c with a = 9.5619（19）, b = 21.879（4）, c = 7.3618（15） A, β= 103.03（3）°, V=1500.4（5） A^3, Z = 4, Mr= 308.33, Dc = 1.365 g/cm^3, F（000） = 648,μ = 0.325 mm^-1, R = 0.0383 and wR =0.0742 for 2283 observed reflections with I 〉 2σ（I）. Phosphorus atom in each compound bonds with sulfur and carbon atoms using sp^3 hybrid orbitals, and crystals of these two compounds are formed and stabilized by intermolecular hydrogen bonds and Van der Waals＇ forces. The special structure of compound 1 leads to its good antimicrobial activity against staphylococcus aureus.

关键词： Lawesson's reagent ring-closure reaction phosphorus crystal structure

Endometrial stem/progenitor cells: Properties, origins, and functions

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Genes & Diseases 2023年第3期10卷 931-947页

作者： In-Sun hong Department of Health Sciences and Technology GAIHSTGachon UniversityIncheon 21999Republic of Korea Department of Molecular Medicine School of MedicineGachon UniversityIncheon 21999Republic of Korea

The endometrium is the inner mucosal lining of the uterus that undergoes extensive cyclic growth, regeneration, differentiation, and shedding throughout the menstrual cycle in response to steroid hormones. It repeatedly undergoes approximately 450 cycles of degeneration and regeneration in a woman's lifetime. Endometrial abnormalities can be associated with repeated embryo implantation failure, recurrent spontaneous abortion, and other physiological features responsible for female infertility. This significant regenerative capacity may occur as a result of tissue-resident stem cell populations within the endometrium. Indeed, the existence of endometrial stem cells was only observed in humans and rodents through several isolation and characterization methods in the last few years. Although endometrial stem cells share various biological characteristics with other types of mesenchymal stem cells, they also show some differences in phenotype, self-renewal, and multilineage differentiation potential. Extensive studies over many years on endometrial stem cells will provide new insights into the physiology and mechanisms underlying various gynaecological diseases related to endometrial abnormalities such as female infertility, endometriosis, and endometrial cancer. Here we summarized recent studies about cellular origins and biological characteristics of endometrial stem cells. We also reviewed various recent studies to improve our understanding of their physiological roles. Many preclinical studies on their potential therapeutic applications to various endometrial diseases that could lead to reproductive dysfunction were also reviewed.

关键词： CD146 LGR5 0CT-4 Side population S0X9 SSEA-1 SUSD2 Wnt/β-catenin

THE EXISTENCE OF GLOBAL SOLUTIONS FOR THE FULL NAVIER-STOKES-KORTEWEG SYSTEM OF VAN DER WAALS GAS

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Acta Mathematica Scientia 2023年第2期43卷 469-491页

作者： Hakho hong Institute of Mathematics State Academy of SciencesPyongyangDemocratic Peoples Republic of Korea

The aim of this work is to prove the existence for the global solution of a nonisothermal or non-isentropic model of capillary compressible fluids derived by *** and ***(1985),in the case of van der Waals *** the small initial perturbation,the proof of the global existence is based on an elementary energy method using the continuation argument of local ***,the uniqueness of global solutions and large time behavior of the density are *** is one of the main difficulties that the pressure p is not the increasing function of the densityρ.

关键词： Navier-Stokes-Korteweg system van der Waals gas existence uniqueness

Patterns of phylogenetic relatedness of non-native plants across the introduction-naturalization-invasion continuum in China

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Plant Diversity 2023年第2期45卷 169-176页

作者： hong Qian CAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China Research and Collections Center Illinois State Museum1011 East Ash StreetSpringfieldIL 62703USA

Human activities have caused the exchange of species among different parts of the *** introduced species become naturalized and invasive,they may cause great negative impacts on the environment and human societies,and pose significant threats to biodiversity and ecosystem *** on phylogenetic relatedness between native and non-native species and among non-native species at different stages of species invasion may help for better understanding the drivers of species ***,I analyze a comprehensive data set including both native and non-native angiosperm species in China to determine phylogenetic relatedness of introduced species across a full invasion continuum(from introduction through naturalization to invasion).This study found that(1) introduced plants are a phylogenetically clustered subset of overall(*** plus non-native) angiosperm flora,(2) naturalized plants are a phylogenetically clustered subset of introduced plants,and(3) invasive plants are a phylogenetically clustered subset of naturalized *** patterns hold regardless of spatial scales examined(*** versus provincial scale) and whether basal-or tip-weighted metric of phylogenetic relatedness is *** findings are consistent with Darwin's preadaptation hypothesis.

关键词： Angiosperm Community assembly Darwin's preadaptation hypothesis Exotic species Introduced species Phylogenetic dispersion