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| 1 | Investigating spatial distribution of tourist attractions’inlinks: A case study of three mountains显示文摘In hyperlink analysis,most researchers focus on interpreting hyperlink counts,they seldom concern themselves enough about the significance of spatial distribution of hyperlinks.In this paper,we argue that not only can the inlink count to a tourist attraction’s official website reflect its attractiveness,but also the spatial distribution of its inlinks can reflect the distribution of its tourist source markets.Three mountains in Anhui Province,China,are chosen for the case study.Firstly,the correlation between the spatial distributions of an attraction’s tourist source markets and its official website’s inlinks is investigated.Secondly,the tourism indexes such as the spatial concentration index(SCI)and the attraction radius(AR),which are calculated by inlinks,are compared to the real indexes based on tourist sources.Last,the detailed discussion and analysis are presented and an improved model,which is used to calculate the distribution of inlinks,is proposed. | ZHANG Yi 1,QI LiNa 2,YANG AnRan 1,SHI Lei 1 & XU Li 1 1 Institute of RS and GIS,Peking University,Beijing 100871,China 2 Center for Recreation and Tourism Research,Peking University,Beijing 100871,China | 2010 | Science China(Technological Sciences)2010，53，S1： | 5 |
| 2 | Ab initio theory of the negatively charged boron vacancy qubit in hexagonal boron nitride显示文摘Highly correlated orbitals coupled with phonons in two-dimension are identified for paramagnetic and optically active boron vacancy in hexagonal boron nitride by first principles methods which are responsible for recently observed optically detected magnetic resonance signal.Here,we report ab initio analysis of the correlated electronic structure of this center by density matrix renormalization group and Kohn-Sham density functional theory methods.By establishing the nature of the bright and dark states as well as the position of the energy levels,we provide a complete description of the magneto-optical properties and corresponding radiative and non-radiative routes which are responsible for the optical spin polarization and spin dependent luminescence of the defect.Our findings pave the way toward advancing the identification and characterization of room temperature quantum bits in two-dimensional solids. | Viktor Ivády Gergely Barcza GergőThiering Song Li Hanen Hamdi Jyh-Pin Chou Örs Legeza Adam Gali | 2020 | npj Computational Materials2020，，1： | 4 |
| 3 | Application of ensemble kalman filter to geophysical parameters retrieval in remote sensing:A case study of kernel-driven BRDF model inversion显示文摘The use of a priori knowledge in remote sensing inversion has great implications for ensuring the stability of inversion process and reducing uncertainties in retrieved results, especially under the condition of insufficient observations. Common optimization algorithms have difficulties in providing posterior distribution and thus cannot directly acquire uncertainties in inversion results, which is of no benefit to remote sensing application. In this article, ensemble Kalman filter (EnKF) has been introduced to retrieve surface geophysical parameters from remote sensing observations, which has the capability of not merely obtaining inversion results but also giving its posterior distribution. To show the advantage of EnKF, it is compared to standard MODIS AMBRALS algorithm and highly effi-cient global optimization method SCE-UA. The inversion abilities of kernel-driven BRDF models with different kernel combinations at several main cover types are emphatically discussed when observa-tions are deficient and a priori knowledge is introduced into inversion. | QIN Jun1, YAN Guangjian1, LIU Shaomin1, LIANG Shunlin2, ZHANG Hao1, WANG Jindi1 & LI Xiaowen1 1. State Key Laboratory of Remote Sensing Science, School of Geography and Remote Sensing, Research Center for RS&GIS, Beijing Normal University, Beijing 100875, China 2. Department of Geography, 2181 Lefrak Hall, University of Maryland, College Park, MD20742, USA | 2006 | Science China Earth Sciences2006，49，6： | 4 |
| 4 | Goodness-of-fit Tests of a Pa rameric Density Functions:Monte Carlo Simulation Studies显示文摘 | Li Y Singii RS Sun YG | 2005 | Journal of Statistical Research2005，39，2： | 1 |
| 5 | Prevention of osteocyte and osteoblast apoptosis by bisphosphonates and calcitonin显示文摘 | Plotkin LI Weinstein RS Parfitt AM | 1999 | J Clin Invest1999，104，10： | 1 |
| 6 | Prevention of osteocyte and osteoblast apoptosis by bisphosphonates and calcitonin显示文摘 | Plotkin LI Weinstein RS Parfitt AM | 1999 | J Clin Invest1999，104，： | 1 |
| 7 | Dha does not protect elovl4transgenic mice from retinal degeneration显示文摘 | Li F Marchette LD Brush RS | 2009 | Mol Vis2009，15，： | 1 |
| 8 | DHA does not protect ELOVL4 transgenic mice from retinal degeneration显示文摘 | Li F Marchette LD Brush RS | 2009 | Mol Vis2009，15，： | 1 |
| 9 | Current state of cartilage tissue engineering显示文摘 | Tuli R Li WJ Tuan RS | | 0，，05： | 1 |
| 10 | Correlates of delayed neuronal damage and neuroprotection in a rat model of cardiac-arrest-induced cerebral ischemia显示文摘 | Li MM Payne RS Reid KH | 1999 | Brain Res1999，826，1： | 1 |
| 11 | Ligation of the CD44 adhesion molecule reverse blockage of differentiation in human acute myeloid leukemia 显示文摘 | Charrad RS Li Y Smadja-Joffe F | 1999 | Nat Med1999，5，6： | 1 |
| 12 | Whisker - related neuronal patterns fail to develop in the trigeminal brainstem nuclei of NMDAR1 knockout mice显示文摘 | Li Y Erzurumlu RS Chen C | 1994 | Cell1994，76，： | 1 |
| 13 | PTPHI cooperates with vitamin D receptor to stimulate breast cancer growth through their mutual sta- bilization显示文摘 | Zhi HY Hou SW Li RS | 2011 | Oncogene2011，30，14： | 1 |
| 14 | Role of osteopontin in induction of monocyte chemoattractant protein 1 and macrophage inflammatory protein 1 through the NF-k 1 B and MAPK pathways in rheumatoid arthritis 显示文摘 | Zheng WX Li RS Pan H | 2009 | Arthritis Rheum2009，60，7： | 1 |
| 15 | Effects of genistein on cell proliferation and cell cycle arrest in nonneoplastic human mammary epithelial cells:involvement of Cdc2,P21waf/cipl and Cdc25C expression显示文摘 | Frey RS Li J Singletary KW | 2001 | Biochemi Pharmacol2001，61，8： | 1 |
| 16 | Increased cerebral blood flow in MELAS shown by Tc-99m HMPAO brain SPECT 显示文摘 | Peng N J Lin RS Li JY | 2000 | Neuroradiology2000，42，1： | 1 |
| 17 | Typing of the acute hypergranular promyelocytic leukemia显示文摘 | Wang KQ Li Y Liu RS | 1995 | Journal of Taishan Medical College1995，16，4： | 1 |
| 18 | TYRP2-mediated resistance t cis-diamminedichloroplatiaum (11) in haman melanoma cells is independent of tyrosinase and TYRPlexpression and melanin content 显示文摘 | Pak BJ Li Q Kerbel RS | 2000 | Melanoma Res2000，10，5： | 1 |
| 19 | Brain-derived neurotrophic factor Val66Met allele impairs basal and ketamine-stimulated synaptogenesis in prefrontal cortex显示文摘 | Liu RJ Lee FS Li XY Bambico F Duman RS Aghajanian GK | 2012 | Biol Psychiatry2012，71，11： | 1 |
| 20 | The induction of taxol production in the endophytic fungus-Periconia sp from Torreya gran-difolia显示文摘 | Li JY Sidhu RS Ford EJ Long DM Hess WM Strobel GA | 1998 | Journal of Industrial Microbiology and Biotechnology1998，20，： | 1 |
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