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Variation analyses of controlled pollinated families and parental combining ability of Pinus koraiensis

Journal of Forestry Research 2021年第3期32卷 1005-1011页

作者： Shuchun li Jiaqi li Yanyan Pan Xiange Hu Xuesong Nan Dan liu Yue li Beijing Forestry University Beijing 100083People’s Republic of China Tree Seedling Management Station Forestry Department of Jilin ProvinceChangchun 130000People’s Republic of China State Key Laboratory of Tree Genetics and Breeding School of ForestryNortheast Forestry UniversityHarbin 150040People’s Republic of China Jilin Provincial Academy of Forestry Sciences Changchun 130000People’s Republic of China Jilin Forestry Investigation and Planning Institute Changchun 130000People’s Republic of China Forest Germplasm Resource Center of Shandong Province Jinan 250000People’s Republic of China

To evaluate and select elite Pinus koraiensis parent combinations and offspring families,34 full-sib families were *** analysis of tree height,diameter at breast height and volume showed no significant differences among each block,the interaction of block,male and *** family heritability of all traits were high(>0.9).Phenotypic and genotypic coefficients of variance of height,diameter at breast height,and volume showed that the phenotypic coefficient of variation of volume in the same combination was higher than height and diameter at breast height,indicating that volume was the main factor determining excellent single plant *** female and male trees with the best general combining ability indicated that the optimal parental hybridization was not necessarily the optimal *** addition,the least parents of hybrid offspring performance were always relatively poor and should not be selected as hybrid ***,we found there was no significant difference among the effects of female and male parents by random modelling,but there were significant differences by fixed *** most significant effect of female-and male interaction,and the selection of better female or male parents in the test parent group should be efficient as well as the results of significant variation among them by fixed *** the evaluated breeding population of ***,the backward selection of excellent parent combinations or forward selection of excellent individuals as progeny should be the major breeding strategies.

关键词： Controlled pollination Progeny testing Pinus koraiensis Parental combining ability

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Nanophotonics in China： Overviews and highlights

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Frontiers of physics 2012年第6期7卷 601-631页

作者： Zhi-Yuan li Laboratory of Optical Physics Institute of PhysicsChinese Academy of SciencesP.O.Box 603Beijing 100190China

The major purpose of this paper is to present a brief overview of the history and the current status of nanophotonics research in China, and to highlight some research results in the past years made by the Chinese nanophotonics communities. I will first briefly introduce the principles of nanophotonics and several of its major disciplines including photonic crystals, plasmonics and metamaterials, and related artificial acoustic structures. Then I will highlight some major progresses made by Chinese research groups in these areas with the selection made merely based on my personal taste. The aim is to let these results better known and appreciated by researchers in the Chinese communities of nanophotonics and related areas, and provide better opportunities of researchers in different areas to have more communications. I also hope that this brief introduction will help to make a better bridge to connect Chinese nanophotonics communities with the broader communities in the world.

关键词： nanophotonics photonic crystals plasmonics metamaterials phononic crystals

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On Schwarzian Triangle Functions, Automorphic Forms and a Generalization of Ramanujan’s Triple Differential Equations

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Acta Mathematica Sinica,English Series 2018年第11期34卷 1648-1662页

作者： li Chien SHEN Department of Mathematics University of Florida

Let G be the group of the fractional linear transformations generated by T（τ）=τ ＋ λ, S（τ）=（τ cos π/n ＋ sin π/n）/（-τ sin π/n ＋ cos π/n）;where λ=2（cos π/m ＋ cos π/n）/sin π/n;m, n is a pair of integers with either n ≥ 2, m ≥ 3 or n ≥ 3, m ≥ 2; τ lies in the upper half plane H.A fundamental set of functions f0, fi and f∞ automorphic with respect to G will be constructed from the conformal mapping of the fundamental domain of G. We derive an analogue of Ramanujan＇s triple differential equations associated with the group G and establish the connection of f0, fi and f∞ with a family of hypergeometric functions.

关键词： Hypergeometric function Schwarzian triangle function Jacobi theta functions Ramanu-jan's triple differential equations

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Metal–Organic Frameworks-Mediated Assembly of Gold Nanoclusters for Sensing Applications

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Journal of Analysis and Testing 2022年第2期6卷 163-177页

作者： Zi-Jian Wang Qiang li li-li Tan Chun-Guo liu li Shang Roll-Forging Research Institute College of Materials Science and EngineeringJilin UniversityChangchun 130025China State Key Laboratory of Solidifi cation Processing School of Materials Science and EngineeringChongqing Science and Technology Innovation CenterNorthwestern Polytechnical UniversityXi’an 710072China

Gold nanoclusters(AuNCs)are an emerging type of ultrasmall nanomaterials possessing unique physicochemical ***–organic frameworks(MOFs),a singular kind of porous solid and crystalline material,have attracted tremendous attention in recent *** combination of AuNCs and MOFs can integrate and improve the prominent properties of both components,such as high catalytic activities,tunable optical properties,good biocompatibility,surface functionality and stability,which make the composites of MOFs and AuNCs promising for sensing *** review systematically summarizes the recent progress on the sensing of various analytes via MOFs-mediated AuNCs assemblies based on strategies of luminescence sensing,colorimetric sensing,electrochemiluminescence sensing,and electrochemical and photoelectrochemical sensing.A brief outlook regarding the future development of MOFs-mediated AuNCs assemblies for sensing application is presented as well.

关键词： Gold nanoclusters Metal-organic frameworks Luminescence Sensing

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Characterization of the protein expression and localization of hnRNP family members during murine spermatogenesis

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Asian Journal of Andrology 2023年第3期25卷 314-321页

作者： Xiao-li Wang Jin-Mei li Shui-Qiao Yuan Institute of Reproductive Health Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Laboratory of Animal Center Huazhong University of Science and TechnologyWuhan 430030China Shenzhen Huazhong University of Science and Technology Research Institute Shenzhen 518057China

Mammalian testis exhibits remarkably high transcriptome complexity,and spermatogenesis undergoes two periods of transcriptional *** make the RNA-binding proteins(RBPs)the utmost importance during male germ cell *** nuclear ribonucleoproteins(hnRNPs)are a large family of RBPs implicated in many steps of RNA processing;however,their roles in spermatogenesis are largely ***,we investigated the expression pattern of 12 hnRNP family members in mouse testes and found that most detected members are highly expressed in the ***,we found that most of the detected hnRNP proteins(hnRNPD,hnRNPK,hnRNPQ,hnRNPU,and hnRNPUL1)display the highest signals in the nuclei of pachytene spermatocytes,round spermatids,and Sertoli cells,whereas hnRNPE1 exclusively concentrates in the manchette of elongating *** expression of these hnRNP proteins showed both similarities and specificity,suggesting their diverse roles in spermatogenesis.

关键词： gene expression heterogeneous nuclear ribonucleoproteins mice Sertoli cells spermatogenesis

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Petroleum Science 2024年第4期21卷 2383-2392页

作者： li-Ming Zhao Cai-Ping Lu Yang liu Chao-Chao li School of Mines China University of Mining and TechnologyXuzhou221116JiangsuChina Henan Institute of Geophysical Space Information Zhengzhou450009HenanChina

The similarities and differences in inherent mechanism and characteristic frequency between the onedimensional(1D)poroelastic model and the layered White model were *** investigation was conducted under the assumption that the rock was homogenous and isotropic at the mesoscopic *** the inherent mechanism,both models resulted from quasi-static flow in a slow P-wave diffusion mode,and the differences between them originated from saturated fluids and boundary *** the other hand,for the characteristic frequencies of the models,the characteristic frequency of the 1D poroelastic model was first modified because the elastic constant and formula for calculating it were misused and then compared to that of the layered White *** of them moved towards higher frequencies with increasing permeability and decreasing viscosity and diffusion *** differences between them were due to the diffusion *** diffusion length for the 1D poroelastic model was determined by the sample length,whereas that for the layered White model was determined by the length of the representative elementary volume(REV).Subsequently,a numerical example was presented to demonstrate the similarities and differences between the ***,published experimental data were interpreted using the 1D poroelastic model combined with the Cole-Cole *** prediction of the combined model was in good agreement with the experimental data,thereby validating the effectiveness of the 1D poroelastic ***,the modified characteristic frequency in our study was much closer to the experimental data than the previous prediction,validating the effectiveness of our modification of the characteristic frequency of the 1D poroelastic *** investigation provided insight into the internal relationship between wave-induced fluid flow(WIFF)models at macroscopic and mesoscopic scales and can aid in a better understanding of the elastic modulus dispersion and attenua

关键词： 1D poroelastic model Layered White model Quasi-static flow Slow P-wave diffusion Characteristic frequency Diffusion length

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On Identifying and Explaining Similarities in Android Apps

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Journal of Computer Science & Technology 2019年第2期34卷 437-455页

作者： li li Tegawende F.Bissyande Hao-Yu Wang Jacques Klein Faculty of Information Technology Monash University Melbourne 3168 Australia Interdisciplinary Centre for Security Reliability and Trust University of Luxembourg Luxembourg 2721 Luxembourg School of Computer Science Beijing University of Posts and Telecommunications Beijing 100876 China

App updates and repackaging are recurrent in the Android ecosystem,filling markets with similar apps that must be *** the existence of several approaches to improving the scalability of detecting repackaged/cloned apps,researchers and practitioners are eventually faced with the need for a comprehensive pairwise comparison(or simultaneously multiple app comparisons)to understand and validate the similarities among *** this work,we present the design and implementation of our research-based prototype tool called SimiDroid for multi-level similarity comparison of Android *** is built with the aim to support the comprehension of similarities/changes among app versions and among repackaged *** particular,we demonstrate the need and usefulness of such a framework based on different case studies implementing different dissection scenarios for revealing various insights on how repackaged apps are *** further show that the similarity comparison plugins implemented in SimiDroid yield more accurate results than the state of the art.

关键词： Android similarity analysis app clone

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Effect of Support on Catalytic Performance of Photothermal Fischer-Tropsch Synthesis to Produce Lower Olefins over FesC2-based Catalysts

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Chemical Research in Chinese Universities 2020年第6期36卷 1006-1012页

作者： li Yuan li Ruizhe li Zhenhua WEI Weiqin OUYANG Shuxin YUAN Hong ZHANG Tierui College o f Chemistry Central China Normal UniversityWuhan 430079P.R.China

Photothermal Fischer-Tropsch synthesis(FTS)has been extensively studied,but few reports were focused on systematically exploring the influence of support on catalytic ***,a series of Fe5C2-based catalysts with different supports was fabricated via a one-step wet-chemical method for photothermal conversion of syngas to lower *** light irradiation,the optimized FesC2/a-Al2O3 catalyst demonstrated remarkable photothermal FTS activity,delivering selectivity to lower olefins of 50.3%with a CO conversion rate of 52.5%.Characterization studies using X-ray diffraction and Mossbauer spectroscopy analysis revealed that the active catalyst mainly contained FesC2 nanoparticles on a-AbO3 *** was found that the weak interaction between active phase and a-AhO3 could promote the formation of FesC2,which contributed to the high selectivity to lower olefins.

关键词： x-FesC2 catalyst Fischer-Tropsch synthesis Metal-support interaction Photothermal catalysis

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Unicyclic graphs with extremal Lanzhou index

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Applied Mathematics(A Journal of Chinese Universities) 2022年第3期37卷 350-365页

作者： liU Qian-qian li Qiu-li ZHANG He-ping School of Mathematics and Statistics Lanzhou UniversityLanzhou 730000China

Very recently *** et al.[8]introduced a new topological index for a molecular graph G named Lanzhou index as∑_(u∈V(G))d_(u)d^(2)_(u),where d_(u)and d_(u)denote the degree of vertex u in G and in its complement *** index Lz(G)can be expressed as(n-1)M_(1)(G)-F(G),where M_(1)(G)and F(G)denote the first Zagreb index and the forgotten index of G respectively,and n is the number of vertices in *** turns out that Lanzhou index outperforms M_(1)(G)and F(G)in predicting the logarithm of the octanol-water partition coefficient for octane and nonane *** was shown that stars and balanced double stars are the minimal and maximal trees for Lanzhou index *** this paper,we determine the unicyclic graphs and the unicyclic chemical graphs with the minimum and maximum Lanzhou indices separately.

关键词： Lanzhou index unicyclic graph extremal graph Zagreb index forgotten index

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The Exceptional Set for Sums of Unlike Powers of Primes

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Acta Mathematica Sinica,English Series 2014年第11期30卷 1897-1904页

作者： li Lu ZHAO School of Mathematics Hefei University of Technology

It is established that all even positive integers up to N but at most O（N15/16＋ε） exceptions can be expressed in the form p1^2＋ p2^3＋ p3^4＋ p4^5,where p1,p2,p3 and p4 are prime numbers.

关键词： Circle method Waring–Goldbach problem exceptional set

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