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| 1 | Spatial-temporal Changes of Vegetation Cover in Guizhou Province, Southern China显示文摘Guizhou Province is an important karst area in the world and a fragile ecological area in China. Ecological risk assessment is very necessary to be conducted in this region. This study investigates different characteristics of the spatial-temporal changes of vegetation cover in Guizhou Province of Southern China using the data set of SPOT VEGETATION(1999–2015) at spatial resolution of 1-km and temporal resolution of 10-day. The coefficient of variation, the Theil-Sen median trend analysis, and the Mann-Kendall test are used to investigate the spatial-temporal change of vegetation cover and its future trend. Results show that: 1) the spatial distribution pattern of vegetation cover in Guizhou Plateau is high in the east whereas low in the west. The average annual normalized difference vegetation index(NDVI) from west to east is higher than that from south to north. 2) Average annual NDVI improved obviously in the past 17 years. The growth rate of average annual NDVI is 0.028/10 yr, which is slower than that of vegetation in the country(0.048/10 yr) from 1998 to 2007. Average annual NDVI in karst area is lower than that in non-karst area. However, the growing rate of average annual NDVI in karst area(0.030/10 yr) is faster than that in non-karst area(0.023/10 yr), indicating that vegetation coverage increases more rapidly in karst area. 3) Vegetation coverage in the study area is stable overall, but fluctuates in the local scales. 4) Vegetation coverage presents a continuous increasing trend. The Hurst exponent of NDVI in different vegetation types has an obvious threshold in various elevations. 5) The proportion of vegetation cover with sustainable increase is higher than that of vegetation cover with sustainable decrease. The improvement in vegetation cover may expand to most parts of the study area. | TIAN Yichao BAI Xiaoyong WANG Shijie QIN Luoyi LI Yue | 2017 | Chinese Geographical Science2017，27，1： | 21 |
| 2 | Overall assessment of antibiotic substitutes for pigs:a set of meta-analyses显示文摘Background:Antibiotic growth promoters are widely used to improve weight gain.However,the abuse of antibiotics can have many negative effects on people.Developing alternatives to antibiotics is an urgent need in livestock production.We aimed to perform a meta-analysis and network meta-analysis(NMA)to investigate the effects of feed additives as potential antibiotic substitutes(ASs)on bacteriostasis,growth performance,intestinal morphology and immunity.Furthermore,the primary,secondary,and tertiary ASs were defined by comparing their results with the results of antibiotics.Results:Among 16,309 identified studies,37 were summarized to study the bacteriostasis effects of feed additives,and 89 were included in the meta-analysis and NMA(10,228 pigs).We summarized 268 associations of 57 interventions with 32 bacteria.The order of bacteriostasis effects was as follows:antimicrobial peptides(AMPs)≈antibiotics>organic acids>plant extracts>oligosaccharides.We detected associations of 11 feed additives and 11 outcomes.Compared with a basal diet,plant extract,AMPs,probiotics,microelements,organic acids,bacteriophages,lysozyme,zymin,and oligosaccharides significantly improved growth performance(P<0.05);organic acids,probiotics,microelements,lysozyme,and AMPs remarkably increased the villus height:crypt depth ratio(V/C)(P<0.05);and plant extracts,zymin,microelements,probiotics,and organic acids notably improved immunity(P<0.05).The optimal AMP,bacteriophage,lysozyme,microelements,oligosaccharides,organic acids,plants,plant extracts,probiotics,and zymin doses were 0.100%,0.150%,0.012%,0.010%,0.050%,0.750%,0.20%,0.040%,0.180%,and 0.100%,respectively.Compared with antibiotics,all investigated feed additives exhibited no significant difference in effects on growth performance,IgG,and diarrhoea index/rate(P>0.05);AMPs and microelements significantly increased V/C(P<0.05);and zymin significantly improved lymphocyte levels(P<0.05).Furthermore,linear weighting sum models were used to comprehensively estimate the overall impact of each feed additive on pig growth and health.Conclusions:Our findings suggest that AMPs and plant extracts can be used as primary ASs for weaned piglets and growing pigs,respectively.Bacteriophages,zymin,plants,probiotics,oligosaccharides,lysozyme,and microelements can be regarded as secondary ASs.Nucleotides and organic acids can be considered as tertiary ASs.Future studies should further assess the alternative effects of combinational feed additives. | Bocheng Xu Jie Fu Luoyi Zhu Zhi Li Mingliang Jin Yizhen Wang | 2021 | Journal of Animal Science and Biotechnology2021，12，2： | 9 |
| 3 | Stability for the equilibrium state manifold of relativistic Birkhoffian systems显示文摘In this paper, the stability of equilibrium state manifold for relativistic Birkhoffian systems in studied. The equilibrium state equations, the disturbance equations and their first approximation are presented. The criteria of stability for the equilibrium state manifold are obtained. The relationship between the stability of the equilibrium-state manifold of relativistic Birkhoffian systems and that of classical Birkhoffian systems is discussed. An example is given to illustrate the results. | FuJing-Li ChenLi-Qun LuoYi LuoShao-Kai | 2003 | Chinese Physics B2003，12，4： | 5 |
| 4 | Construction of hierarchical three-dimensional interspersed flower-like nickel hydroxide for asymmetric supercapacitors显示文摘 | Wutao Wei Weihua Chen Luoyi Ding Shizhong Cui Liwei Mi | 2017 | Nano Research2017，10，11： | 4 |
| 5 | Dietary fatty acids in gut health: Absorption, metabolism and function显示文摘In biological responses,fatty acids(FA)are absorbed and metabolized in the form of substrates for energy production.The molecular structures(number of double bonds and chain length)and composition of dietary FA impact digestion,absorption and metabolism,and the biological roles of FA.Recently,increasing evidence indicates that FA are essentially utilized as an energy source and are signaling molecules that exert physiological activity of gut microbiota and immune responses.In addition,FA could serve as natural ligands for orphan G protein-coupled receptors(GPCR),also called free fatty acid receptors(FFAR),which intertwine metabolic and immune systems via multiple mechanisms.The present review explores the recent findings on FA absorption and its impact on gut health,particularly addressing the mechanism by which dietary FA potentially influences intestinal microbiota and epithelial functions.Also,this work attempts to uncover research ideas for devising future strategies for manipulating the composition of dietary FA to regulate gut health and support a normal immune system for metabolic and immune disorders. | E.Xu Chao Chen Jie Fu Luoyi Zhu Junlan Shu Mingliang Jin Yizhen Wang Xin Zong | 2021 | Animal Nutrition2021，，4： | 4 |
| 6 | Leaf litter ecological fate in the Schelde Estuary in Belgium显示文摘Two dominant species of Willow( Salix triandra )and Reed (Phragmites australis) along the Schelde Estuary(in Belgium)were selected in this research. The pigments of higher plant was used as biomarkers, the decomposition process of the two species were studied after they fall into the Schelde Estuary. After statistical analysis(Spearman rank order correlation, P <0 05), the results has shown the decomposition dynamics pattern of the pigments, and the willow showed different pattern in comparing with the reed, e.g. Chlorophyll a decomposition dynamics for willow is: y 1=12196 x 2 - 175895 x +1E+06+ k , R 2=0 5706 while for reed is: y 2=-37878 x 2+229782 x +734282+ k , R 2=0 9065 The precise time of the leaf litter spent in the water was also calculated as were less than 24 days, 24-37 days, longer than 37 days(willow)and less than 24 days, longer than 24 days(reed), the leaf litter fate of the two dominant species in the Schelde Estuary was also compared. | LUOYi MickyTackx LIFa-yun MAODa-qing ZHOUQi-xing | 2002 | Journal of Environmental Sciences2002，14，4： | 2 |
| 7 | 显示文摘 | FEIXiang OIANKe-yuan LUOYi(费翔 钱可元 罗毅) | | 光电子.激光0，，： | 1 |
| 8 | Impact of traffic influxes:Revealing exponential intercontact time in urban VANETs显示文摘 | ZHU Hongzi Li Minglu FU Luoyi | | 0，，8： | 1 |
| 9 | Theoretical Study on the Structures,Spectral Properties,and Drugability of Xenicane-type Diterpenoids from Dictyota dichotoma显示文摘There are few reports on the relationship between the biological activity and structure of secondary metabolites from Dictyota dichotoma. In this work, the geometric and electronic structures, infrared spectra, ultraviolet spectra, 13C and 1H NMR spectra of 16 xenicane-type diterpenoids extracted from Dictyota dichotoma were studied by the density functional theory ωB97XD/6-311+G(2d,p) method. The analysis of the reactivity indices was carried out via the conceptual density functional theory. Furthermore, a pharmacodynamic evaluation was performed using ADME/Tox. The geometric structure analysis found that all 16 diterpenoids had the same unsaturated, branched chains and could be divided into two categories according to the ring size, including nine-membered and eight-membered rings. A hydroxyl group on the lactone ring reduced the stability of the compound. In contrast, a hydroxyl group on the parent ring had little effect on the compound's stability. The electrostatic potential results preliminarily predicted active sites for nucleophilic/electrophilic reactions. The fitting results of infrared and nuclear magnetic resonance(NMR) data showed that the theoretical values obtained by this method were consistent with the experimental values. The UV-visible absorption spectra showed that the solvent effects caused different redshifts of the absorption peaks. The absorption strength was enhanced. The sixteen diterpenoids displayed a strong absorption peak in the range of 180―200 nm, but the compound containing a carbonyl group presents a weaker absorption peak in the field of 200―240 nm. Compounds 9―11, 14, and 15 have better stability and reactivity with lower chemical potentials and higher electronegativity, electrophilic index, and hardness values. The local reactivity descriptors further identified nucleophilic/electrophilic reaction sites for the sixteen compounds. Finally, the pharmacodynamic evaluation results predicted that compounds 2, 4, 8, 11, and 14―16 have optimal drugability. The theoretical results of this work may provide a rich data information for the other experimental study on the cembrane diterpenoids in medicine. | HUANG Luoyi SUN Xiang CHEN Mengyi YAN Pengcheng WANG Chaojie | 2022 | Chemical Research in Chinese Universities2022，38，2： | 1 |
| 10 | Acoustic wave-equation traveltime and waveform inversion of crosshole seismic data显示文摘 | Zhou Changxi Cai Wenying LuoYi | 1995 | Geophysics1995，60，3： | 1 |
| 11 | Effect of enoxaparin and aspirin on hemodynamic disturbances after global cerebral ischemia in rats显示文摘 | LuoYi Xu JingYe Wang Jie Pan LiNa Sun Qiang Xia BenYan Luo | 2010 | Resuscitation2010，，12： | 1 |
| 12 | Pulsatillachinensis(Bunge)RegelsaponinssuppressestheproliferationoftumorcellsandinducesapoptosisandautophagyviainhibitingPI3k/Aktsignallingpathway显示文摘 | LUOYY CHENLY CUIYR etal | 2013 | 药学学报2013，34，1： | 1 |
| 13 | Analyzing and De-Anonymizing Bitcoin Networks:An IP Matching Method with Clustering and Heuristics显示文摘The anonymity and de-anonymity of blockchain and Bitcoin have always been a hot topic in blockchain related research.Since Bitcoin was created by Nakamoto in 2009,it has,to some extent,deviated from its currency attribute as a trading medium but instead turned into an object for financial investment and operations.In this paper,the power-law distribution that the Bitcoin network obeys is given with mathematical proof,while traditional deanonymous methods such as clustering fail to satisfy it.Therefore,considering the profit-oriented characteristics of Bitcoin traders in such occasion,we put forward a de-anonymous heuristic approach that recognizes and analyzes the behavioral patterns of financial High-Frequency Transactions(HFT),with realtime exchange rate of Bitcoin involved.With heuristic approach used for de-anonymity,algorithm that deals with the adjacency matrix and transition probability matrix are also put forward,which then makes it possible to apply clustering to the IP matching method.Basing on the heuristic approach and additional algorithm for clustering,finally we established the de-anonymous method that matches the activity information of the IP with the transaction records in blockchain.Experiments on IP matching method are applied to the actual data.It turns out that similar behavioral pattern between IP and transaction records are shown,which indicates the superiority of IP matching method. | Teng Long Jiasheng Xu Luoyi Fu Xinbing Wang | 2022 | China Communications2022，19，6： | 1 |
| 14 | Asymptotic Analysis on Secrecy Capacity in Large-Scale Wireless Networks显示文摘 | Jinbei Zhang Luoyi Fu Xinbing Wang | 2014 | IEEE/ACM Transactions on Networking (TON)2014，，： | 1 |
| 15 | Impact of traffic influxes: Revealing exponential intercontact time in urban VANETs显示文摘 | Zhu Hongzi Li Minglu Fu Luoyi | 2011 | IEEE Transactions on Parallel and Distribu- ted Systems2011，22，8： | 1 |
| 16 | Effectsofreforestationonwoodyplantbiodiversityofforestvegeta-tioninBadaling Beijing[J]显示文摘 | WANGSHS(王树森) YUXX(余新晓) LUOYY(罗于洋) etal | | 北京林业大学学报0，，： | 1 |
| 17 | Finite difference solution of the eikonal equation along expanding wavefronts显示文摘 | Qin Fuhao LuoYi Olsen Kim B | 1992 | Geophysics1992，57，3： | 1 |
| 18 | Analysis about the characteristics of MSW leachate[J]显示文摘 | LIUDong(刘东) YUXiao(喻晓) LUOYi(罗毅) etal | 2006 | 环境科学及技术2006，29，6： | 1 |
| 19 | Molecular assembly of a pyridine functionalized janusarene显示文摘We describe a janusarene derivative PyJ,which forms micrometer-scale one-dimensional metallo-supramolecular polymer through coordination driven self-assembly.PyJ is a well-preorganized dodecatopic pyridyl ligand built on a hexaphenylbenzene platform.The two-face structural feature of PyJ allows for a delicate control over multiple Py-Ag^(+)-Py coordination interactions,leading to assembled structure of PyJ-Ag^(+),which was characterized by dynamic light scattering,atomic force microscopy,and transmission electron microscopy. | Zhibo Yin Luoyi Fan Chaojun Lin Haonan Shi Bangyuan Xiong Jiajian Gu Yanpeng Zhu Jiaobing Wang | 2022 | Chinese Chemical Letters2022，33，1： | 0 |
| 20 | Decomposition dynamic of higher plant pigments by HPLC analysis显示文摘The fate of the litter of dominant vegetation(willows and reeds) is one of the aspects studied in the frame of the project “Onderzoek Milieu Effecten Sigmaplan”. One of the questions to be considered is how long the litter stays within the estuary. In this paper, the time the leaf litter(Salix triandra and Phragmites australis) stayed in the Schelde estuary was studied by using plant pigment as biomarkers with HPLC application. After analyzing the original data from the incubation experiment described by Dubuison and Geers(1999), the decomposition dynamics patterns of pigments were analyzed and described, and these decomposition dynamics patterns were used as calibration patterns. By using Spearman Rank Order Correlation, the calibration patterns of the pigments which were significant(p<0.05) were grouped. In this way, several groups of the calibration patterns of pigment decomposition were achieved. The presence or absence of these groups of pigments (whether they can be detected or not from HPLC) was shown to be useful in determining the time the litter has stayed in the water. Combining data of DW and POC, more precise timing can be obtained. | LUOYi ZHANGTing-zhou ZHOUQi-xing MAODa-qing WANDong-mei | 2004 | Journal of Environmental Sciences2004，16，5： | 0 |
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