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| 1 | The Global Boundary Stratotype Section and Point (GSSP) for the base of the Hirnantian Stage (the uppermost of the Ordovician System)显示文摘 | Xu Chen Jiayu Rong Junxuan Fan Renbin Zhan Charles E. Mitchell David A. T. Harper Michael J. Melchin Ping'an Peng Stan C. Finney Xiaofeng Wang | 2006 | Episodes2006，29，3： | 61 |
| 2 | Expansion of the Cathaysian Oldland through the Ordovician-Silurian transition:Emerging evidence and possible dynamics显示文摘Located northwest of the Jiangshan-Shaoxing Fault Zone,western and northwestern Zhejiang and northeastern Jiangxi provinces experienced major changes in bio-and litho-facies and paleogeography through the Ordovician-Silurian transition (late Katian,Hirnantian,and early Rhuddanian),as manifested by stratigraphic,paleontologic and synecologic records.Three geographic units under consideration are South,Central,and North areas.The western margin of the South area was occupied by the Huaiyu Mountains,whereas the other two parts were covered by the Zhe-Gan Sea during late Katian (Late Ordovician) time.In the early stage of the Changwu Formation deposition (late Katian),the sea was deepening northeastward,but with shallower conditions in the southwest and deeper conditions in the northeast.During mid to late stages of Changwu Formation deposition (latest Katian),the sea became much shallower and the sea bottom was uplifted substantially,which occurred somewhat prior to the global trend.During the Hirnantian (latest Ordovician) and early Rhuddanian (earliest Silurian),the study region became a shallow bay under expansion of the Cathaysian Oldland.There occurred a major drop of sea level and great changes in benthic biota with the occurrence of many new immigrants through the Ordovician-Silurian transition,which are closely related to a unique regional orogeny.The Yangtze and Cathaysian blocks may have amalgamated within the South China Paleoplate during this interval to cause the continuous uplifting and northwestward expansion of the Cathaysian Oldland. | RONG JiaYu ZHAN RenBin XU HongGen HUANG Bing YU GuoHua | 2010 | Science China Earth Sciences2010，53，1： | 37 |
| 3 | The Central Guizhou and Yi-chang uplifts, Upper Yangtze region,between Ordovician and Silurian显示文摘The Central Guizhou and Yichang Uplifts are present in central Guizhou to western Hubei. Biostrati-graphic evidences from more than 20 sections in 14 counties of this region provide the data about the duration of these uplifts. Although this duration differs from locality to locality, it is mainly from Ashgillian to Rhuddanian. The uplifts result from a horizontally driven movement to the South China Paleoplate from an uncertain block in southeast. Global sea-level drop during the end of the Ordovician made the uplifts obvious, particularly the Central Guizhou Uplift.It might have emerged above sea level in the short interval between the Ordovician and Silurian. | CHEN Xu RONG Jiayu ZHOU Zhiyi ZHANG Yuandong ZHAN Renbin LIU Jianbo FAN Junxuan | 2001 | Chinese Science Bulletin2001，46，18： | 17 |
| 4 | Early-Mid Ordovician brachiopod diversification in South China显示文摘Affected by paleogeographic position, paleoclimatic condition and depositional environments, the increase of the Early-Mid Ordovician brachiopod diversity of South China commenced at the beginning of the Ordovician (early Tremadoc), accelerated from the Tetra- graptus approximatus Biozone (base of Arenig), and reached its first acme in the Didymograptus eobifidus Biozone (mid early Arenig) when the number of brachiopod genera was over 7 times as great as that at the start of the Ordovician. This was the first radiation in the history of brachiopod macroevolution in South China, which occurred nearly 5 graptolitic biozones earlier than the global trend of the great Ordovician biodiversification (in the lower part of the Undulograptus austrodentatus Biozone). It is also characterized by (1) the origination or first occurrences of some major groups, such as the punctate dalmanelloids and the pseudopunctate stro- phomenoids including Plectambonitoidea (cardinal process simple or absent) and Stro- phomenoidea (cardinal process bilobed) in South China; (2) niche expansion, particularly in the first occupation of deeper water benthic regimes by the Euorthisina-Nocturnellia Association developed at Houping, Chengkou, northern Chongqing; and (3) the differentiation of brachiopod faunas under different environmental conditions. The gradual and increasing separation from Gondwana may have been one of the factors responsible for the radiation in South China. | ZHAN Renbin, RONG Jiayu, CHENG Jinhui & CHEN Pengfei Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing 210008, China | 2005 | Science China Earth Sciences2005，48，5： | 14 |
| 5 | Principal aspects of the Ordovician biotic radiation显示文摘The Ordovician radiation is among the major bioevents in earth history that have drawn great attention from geologists all over the world, and there have been hundreds of publications treating various aspects of this radiation. The study of the event involves a broad spectrum of research fields and concerns many scientific questions. Many opinions and hypotheses have been proposed on the triggering and controlling factors of the radiation. Herein the authors critically review the study of the Ordovician radiation and dissect four principal aspects by synthesizing the studies over the past years: (1) relationships of the radiation to fossil clades, ecotypes, and environments, such as water depth, latitude, and climate; (2) the ecological structure and food webs of Ordovician marine organisms; (3) fossil records and true biodiversities; and (4) likely triggering and controlling factors of the Ordovician radiation. The authors also recommend approaches to furthering studies of these aspects. | ZHANG YuanDong,ZHAN RenBin,FAN JunXuan,CHENG JunFeng & LIU Xiao LPS, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China | 2010 | Science China Earth Sciences2010，53，3： | 13 |
| 6 | Particle swarm optimization algorithm for partner selection in virtual enterprise显示文摘搭挡选择是在一家虚拟企业的形成和成功的一个基本问题。有领先和到期的日期限制的搭挡选择问题是各种各样的延期的基础并且在这篇论文被学习。为搭挡选择问题的一个非线性的整数节目模型被建立。这个问题被显示由到背囊问题的减小 NP 完全,因此,没有多项式时间算法存在。高效地解决它,一个粒子群优化(PSO ) 算法被采用,并且包括寻找机制的初始化扩大机制,变化机制和本地人的几机制被开发了改进建议 PSO 算法的表演。一套实验用真实例子和数字模拟被进行了,并且证明了 PSO 算法是与领先和到期的日期限制解决搭挡选择问题的一个有效、有效的方法。 | Qiang Zhao Xinhui Zhang Renbin Xiao | 2008 | Progress in Natural Science:Materials International2008，18，11： | 12 |
| 7 | Temporal Distribution of Diagnostic Biofabrics in the Lower and Middle Ordovician in North China:Clues to the Geobiology of the Great Ordovician Biodiversification Event显示文摘在在诺思中国的更低、中间的奥陶纪的诊断简历织物的时间的分发清楚地说明 paleoplate 上的沉积系统作为大奥陶纪 Biodiversification 事件(护镜) 的后果显著地被改变了。沉积系统在 Tremadoc 显示扔了的护镜前普遍 microbialite 和扁平卵石的集团企业,和更少 bioturbation 的程度。通过早 Floian 的过渡时期,在其余部分的沉积系统早、中间 -- 护镜的奥陶纪变化由集中的 bioturbation 打字并且被描绘并且消失扁平卵石的集团企业和代用品潮汐的微生物引起的沉积。在在诺思中国的沉积系统的不可逆的变化被连接到 GOBE,它导致了的增加在动物区系的 tiering,扩大在与古生代的进化动物志的开发有关的新洞穴 ers 的动物区系的 ecospace,和外观在奥陶纪简历多样化期间。因此,在沉积系统的变化在 GOBE 的枢轴的时期期间是 benthic 动物志而非护镜的环境背景的陡峭的多样化的后果。 | LIU Jianbo ZHAN Renbin | 2009 | Acta Geologica Sinica(English Edition)2009，83，3： | 12 |
| 8 | Atmospheric nitrous oxide observations above the oceanic surface during CHINARE-18显示文摘The gas samples in the marine boundary layer were collected from the track for research ship Xuelong during the 18th Chinese Antarctic Research Expedition (CHINARE-18) and nitrous oxide measurements were made by HP5890ECD-GC in the laboratory. The results represent the shipboard N2O data set obtained within the lower troposphere with the average concentration of (313.5±2.6)nL*L-1 from 31°N to 69°S. The results showed a latitudinally weighted, mean interhemispheric difference of 0.61 nL*L-1. The latitudinal distribution of atmospheric N2O concentration was analyzed from northern midlatitudes to Southern Ocean around the Antarctic continent and it was showed that N2O concentration in the current confluences was higher than that in other oceanic areas. This indicated that strong N2O emissions occurred there. The longitudinal distribution of N2O concentrations in the Southern Ocean also showed similar situation. According to the interhemispheric difference of atmospheric N2O concentrations and the two-box model, we estimated that 2/5 of the global flux of N2O into the atmosphere is derived from the sources in the southern hemisphere. | ZHU Renbin, SUN Liguang and LIU Xiaodong(Institute of Polar Environment, University of Science and Technology of China, Hefei 230026, China) | 2003 | Progress in Natural Science:Materials International2003，13，8： | 9 |
| 9 | TRANSIENT SOLUTION FOR QUEUE-LENGTH DISTRIBUTION OF Geometry/G/1 QUEUEING MODEL显示文摘在这份报纸,有内部到达的时间的排队模型产生了由的 Geometry/G/1 一几何(参数 p ) 分发独立地与分发根据有推迟的存取和服务时间的一个迟到系统散布了 { g j } , j 鈮 ? 1 被学习。由一个简单方法(概率分解的技术,更新过程理论) 那与亨特(1983 ) 使用的技术不同,与起始的州的 i 一起的队列的短暂性质(i 鈮 ? 0 ) 被讨论。为在任何时间点 n + 的短暂队列长度分发的 u 变换的递归表示被获得,并且限制队列长度分发的递归表示也被获得。 | Luo Chuanyi Tang Yinghui Liu Renbin | 2007 | Applied Mathematics(A Journal of Chinese Universities)2007，22，1： | 8 |
| 10 | Nuclear phylotranscriptomics and phylogenomics support numerous polyploidization events and hypotheses for the evolution of rhizobial nitrogenfixing symbiosis in Fabaceae显示文摘Fabaceae are the third largest angiosperm family,with 765 genera and~19500 species.They are important both economically and ecologically,and global Fabaceae crops are intensively studied in part for their nitrogen-fixing ability.However,resolution of the intrasubfamilial Fabaceae phylogeny and divergence times has remained elusive,precluding a reconstruction of the evolutionary history of symbiotic nitrogen fixation in Fabaceae.Here,we report a highly resolved phylogeny using>1500 nuclear genes from newly sequenced transcriptomes and genomes of 391 species,along with other datasets,for a total of 463 legumes spanning all 6 subfamilies and 333 of 765 genera.The subfamilies are maximally supported as mono-phyletic.The clade comprising subfamilies Cercidoideae and Detarioideae is sister to the remaining legumes,and Duparquetioideae and Dialioideae are successive sisters to the clade of Papilionoideae and Caesalpinioideae.Molecular clock estimation revealed an early radiation of subfamilies near the K/Pg boundary,marked by mass extinction,and subsequent divergence of most tribe-level clades within~15 million years.Phylogenomic analyses of thousands of gene families support 28 proposed putative whole-genome duplication/whole-genome triplication events across Fabaceae,including those at the ancestors of Fabaceae and five of the subfamilies,and further analyses supported the Fabaceae ancestral polyploidy.The evolution of rhizobial nitrogen-fixing nodulation in Fabaceae was probed by ancestral character reconstruction and phylogenetic analyses of related gene families and the results support the hypotheses of one or two switches)to rhizobial nodulation followed by multiple losses.Collectively,these results provide a foundation for further morphological and functional evolutionary analyses across Fabaceae. | Yiyong Zhao Rong Zhang Kai-Wen Jiang Ji Qi Yi Hu Jing Guo Renbin Zhu Taikui Zhang Ashley N.Egan Ting-Shuang Yi Chien-Hsun Huang Hong Ma | 2021 | Molecular Plant2021，14，5： | 8 |
| 11 | Ordovician integrative stratigraphy and timescale of China显示文摘In this chapter, starting with a brief review of the research history and current status in the studies of the Ordovician chronostratigraphy in China, the subdivision of the Ordovician System, definition and recognition of its series and stage boundaries, and possible stratigraphic gaps are discussed in details in order to establish a multidisciplinary stratigraphic correlation through an integrated approach including lithostratigraphy, biostratigraphy, radiometric dating, chemostratigraphy and magnetostratigraphy. Being internationally accepted, the Ordovician System is now subdivided into three series and seven stages, in ascending order, Lower(Tremadocian, Floian), Middle(Dapingian, Darriwilian) and Upper series(Sandbian, Katian,Hirnantian). Three of the seven 'Golden Spikes' defining the bases of the Ordovician stages, which were established in 1997–2007, are located in China. As a regionally applied chronostratigraphy, the Ordovician System was subdivided in China into Lower(Xinchangian, Yiyangian), Middle(Dapingian, Darriwilian) and Upper series(Neichiashanian, Chientangkiangian,Hirnantian). This scheme agrees largely with the standard international classification, which can actually be directly applied to China, except for some special circumstances where the Neichiashanian and Chientangkiangian stages of the Upper Ordovician are used. Based on the new studies in recent years and distinctions and differences recognized in the development of the Ordovician System in the constituent terranes of China, a new framework for correlation among the major Chinese palaeoplates or terranes, e.g. South China, North China(including Tarim and Qaidam) and Xizang(Tibet)-western Yunnan, has been established. However, it has been recognized herein that uncertainties still remain on defining the base of the Tremadocian,Dapingian and Katian, and on the correlation between different mega-facies. More specifically, for the Tremadocian, the precise correlation of its base will depend on the better-defined conodont taxonomy, while for the Dapingian and Katian, on the correlation between different mega-facies. It is worthwhile to note that the chemostratigraphic studies of the Ordovician System in China produced the carbonate δ13 C curves for the Darriwilian(Middle Ordovician) and Katian(Upper Ordovician), which show significant differences from the composite global curve. Record of the Ordovician isotopic dating is relatively rare in China, with only three reliable ages from zircons that are all from the upper Katian to Hirnantian of the Upper Ordovician.Abundant bentonite beds in the Upper Ordovician of South China will also provide unique opportunities to advance the isotopic dating and related researches. Studies on the Ordovician magnetostratigraphy need to be significantly enhanced in China, as currently all the available results are restricted to the Lower Ordovician of North China, although they can be correlated with those known from other parts of the world. The analysis of the durational unevenness of the seven stages in the Ordovician supports the possibility to further subdivide the long-durational Tremadocian, Darriwilian and Katian stages, each into two substages. | Yuandong ZHANG Renbin ZHAN Yongyi ZHEN Zhihao WANG Wenwei YUAN Xiang FANG Xuan MA Junpeng ZHANG | 2019 | Science China Earth Sciences2019，62，1： | 6 |
| 12 | A deep water shelly fauna from the uppermost Ordovician in northwestern Hunan, South China and its paleoecological implications显示文摘It is the first time to document the trilobite Mucronaspis(Songxites) wuningensis and the brachiopod ParomalomenaAegiromenella Assemblage from the Xinkailing Bed(Hirnantian, uppermost Ordovician) in Taoyuan and Cili counties,northwestern Hunan Province. Synecological analysis shows that this is a deep water shelly fauna of South China during the Hirnantian. It lived on the upper Jiangnan Slope in northwestern Hunan, adjacent to the southeast margin of the Upper Yangtze Region, and belongs to the Hirnantia fauna with cool and deep water, and low diversity affinity, similar to its contemporary shelly faunas from the southern Shaanxi Slope adjacent to the north margin of the Upper Yangtze Region, the northern Chongqing depression(new name), and the Jiangxi-Anhui-Jiangsu gentle slope of the Lower Yangtze Region. Paleoecologically,it could be attributed to the BA 4–5 benthic regime(about 60–150 m deep, and deepest to 200 m), and was significantly different from the trilobite M.(S.) mucronata and the typical Hirnantia fauna while the latters may have habited in BA 2–3 benthic regimes(about 5–60 m deep). A new paleogeographic distribution pattern of the Hirnantian shallow and deep water shelly faunas of South China is herein proposed for the first time. Assuming that the depositional rate was constant in northwestern Hunan during the end Ordovician, the duration of the Xinkailing Bed might be only 12 thousand years according to the thickness of the Wufeng Formation and the absolute age values of those relevant graptolitic biozones. Such a short time interval may indicate that the global environmental change during the crisis was much shorter than previously thought, and its influence on the deep water regime was significantly shorter than that on the shallow water regime. | Jiayu RONG Xin WEI Renbin ZHAN Yi WANG | 2018 | Science China Earth Sciences2018，61，6： | 5 |
| 13 | α-and β-diversity Change of Late Ordovician Hirnantia Fauna of Changning,Sichuan,Southwest China显示文摘从通过到更低的 Lungmachi 形成的 Kuanyinchiao 形成的上面的 Wufeng 形成的连续奥陶纪志留纪边界节小心地在 Changning 的 Shuanghe 被测量了并且收集,南部的四川省。第一次,时间的变化 - 并且 Hirnantia 动物志的差异详细地被讨论了。腕足类动物的一种差异变化的一般趋势,向上增加,与 Yangtze 站台的地区性的趋势一致,它被内在、外来的因素控制了。然而,为在上面的 Kuanyinchiao 形成的一个短时期的差异的突然的落下可能被环境因素而非正常动物区系的周转控制了。用数字方法的 Synecological 分析认出 Hirnantia 动物志, Dalmanella-Kinnella 协会和 Mirorthis 协会的二个腕足类动物的一种主导的协会,两个都住在相应于 BA3 上面的 BA4 的近海的、更深的水环境,特别地更低的 BA3。 | ZHAN Renbin LIU Jianbo LIANG Yan LI Guipeng | 2011 | Acta Geologica Sinica(English Edition)2011，85，2： | 5 |
| 14 | Valuable Data Extraction for Resistivity Imaging Logging Interpretation显示文摘Imaging logging has become a popular means of well logging because it can visually represent the lithologic and structural characteristics of strata.The manual interpretation of imaging logging is affected by the limitations of the naked eye and experiential factors.As a result,manual interpretation accuracy is low.Therefore,it is highly useful to develop effective automatic imaging logging interpretation by machine learning.Resistivity imaging logging is the most widely used technology for imaging logging.In this paper,we propose an automatic extraction procedure for the geological features in resistivity imaging logging images.This procedure is based on machine learning and achieves good results in practical applications.Acknowledging that the existence of valueless data significantly affects the recognition effect,we propose three strategies for the identification of valueless data based on binary classification.We compare the effect of the three strategies both on an experimental dataset and in a production environment,and find that the merging method is the best performing of the three strategies.It effectively identifies the valueless data in the well logging images,thus significantly improving the automatic recognition effect of geological features in resistivity logging images. | Yili Ren Renbin Gong Zhou Feng Meichao Li | 2020 | Tsinghua Science and Technology2020，25，2： | 5 |
| 15 | Effects of Yulangsan polysaccharide on monoamine neurotransmitters, adenylate cyclase activity and brain-derived neurotrophic factor expression in a mouse model of depression induced by unpredictable chronic mild stress显示文摘The present study established a mouse model of depression induced by unpredictable chronic mild stress. The model mice were treated with Yulangsan polysaccharide (YLSPS; 150, 300 and 600 mg/kg) for 21 days, and compared with fluoxetine-treated and normal control groups. Enzyme-linked immunosorbent assay, radioimmunity and immunohistochemical staining showed that following treatment with YLSPS (300 and 600 mg/kg), monoamine neurotransmitter levels, prefrontal cortex adenylate cyclase activity and hippocampal brain-derived neurotrophic factor expression were significantly elevated, and depression-like behaviors were improved. Open-field and novelty-suppressed feeding tests showed that mouse activity levels were increased and feeding latency was shortened following treatment. Our results indicate that YLSPS inhibits depression by upregulating monoamine neurotransmitters, prefrontal cortex adenylate cyclase activity and hippocampal brain-derived neurotrophic factor expression. | Shuang Liang Renbin Huang Xing Lin Jianchun Huang ZhongshiHuang Huagang Liu | 2012 | Neural Regeneration Research2012，7，3： | 4 |
| 16 | Key gene and protein changes in the beta-amyloid pathway following Longyanshen polysaccharides treatment in a mouse model of Alzheimer's disease显示文摘BACKGROUND:During onset and development of Alzheimer's disease,β-amyloid(Aβ) precursor protein(APP),β-site amyloid precursor protein cleaving enzyme(BACE),andβ-amyloid are key genes and proteins in the Aβpathway,and over-expression of these genes can lead to Aβdeposition in the brain. OBJECTIVE:To observe the influence of Longyanshen polysaccharides on expression of BACE, APP,and Aβin the senescence-accelerated mouse prone/8(SAMP8) brain,and to compare these effects with huperzine A treatment. DESIGN,TIME AND SETTING:A randomized,controlled,neurobiochemical experiment was performed at the Department of Pharmacology and Scientific Experimental Center of Guangxi Medical University from September 2005 to January 2008. MATERIALS:Longyanshen polysaccharides powder was extracted from the dried slices of the medicinal plant Longyanshen.The active component,Longyanshen polysaccharides,was provided by the Department of Pharmacology,Guangxi Medical University;huperzine A was purchased from Yuzhong Drug Manufactory,China. METHODS:Healthy SAMP8 mice were used to establish a model of Alzheimer's disease.A total of 50 SAMP8 mice were randomly assigned to 5 groups(n = 10):SAMP8,huperzine A,low-,middle-, and high-dose polysaccharides.In addition,10 senescence-accelerated mouse resistant 1(SAMR1) mice were selected as normal controls.SAMP8 and SAMR1 mice were administered 30 mL/kg normal saline;the huperzine A group was administered 0.02 mg/kg huperzine A;the low-,middle-, and high-dose polysaccharides groups were respectively administered 45,90,and 180 mg/kg Longyanshen polysaccharides.Each group was treated by intragastric administration,once per day, for 50 consecutive days. MAIN OUTCOME MEASURES:One hour after the final administration,immunohistochemical analysis was used to determine Aβexpression in the cortex and hippocampus of SAMP8 mice. Reverse-transcription polymerase chain reaction was used to determine mRNA levels of BACE and APP in SAMP8 brain tissue. RESULTS:Compared with the SAMR1 group,Aβexpression in the cerebral cortex and hippocampus,as well as expression of BACE,APP mRNA in the brain was significantly increased in the SAMP8 group(P<0.05-0.01).Compared with the SAMP8 group,Aβexpression,as well as BACE and APP mRNA expression,were significantly decreased in the cerebral cortex and hippocampus of huperzine A and low-,middle-,and high-dose polysaccharides groups(P<0.05-0.01).In particular,the effect of high-dose polysaccharides was the most significant(P<0.05-0.01). CONCLUSION:Longyanshen polysaccharides reduced or inhibited over-expression of BACE,APP, and Aβin SAMP8 mice in a dose-dependent manner,and the effect was not worse than huperzine A. | Zhongshi Huang Shijun Zhang Haiyuan Xie Xing Lin Weizhe Jiang Renbin Huang | 2009 | Neural Regeneration Research2009，4，10： | 4 |
| 17 | Theoretical investigation of a terahertz transmission line in bipolar coordinate system显示文摘It has been demonstrated that the dual-wire waveguide(DWW)can be used in terahertz(THz) frequency regime with many advantages.However,the existent research approaches for the DWW are based on the electrostatic theory.In this paper,making use of the bipolar coordinate system(BCS),a rigorous analytical theory of DWW is worked out,and some important physical and optical characters of DWW including the rotating behavior etc.are revealed,the equivalent impendence and the ohmic loss for the gold DWW are calculated.An eigenvalue problem is presented from the point of view of Mathematical-Physics for TE and TM modes.The obtained results will help get a deep-going understanding of DWW and explore its application in high frequency range including THz. | ZHONG RenBin ZHOU Jun LIU WeiHao LIU ShengGang | 2012 | Science China(Information Sciences)2012，55，1： | 4 |
| 18 | Stimulation of gaseous phosphine production from Antarctic seabird guanos and ornithogenic soils显示文摘Matrix-bound phosphine(MBP) is a general term used to indicate non-gaseous reduced phosphorus compounds that are transformed into phosphine gas upon reaction with bases or acids.Antarctic seabird guanos and ornithogenic soils were used as materials to compare the different digestion methods for transforming matrix-bound phosphine into phosphine gas.The results demonstrated that more phosphine gas in most of Antarctic environmental materials was formed of matrix-bound phosphine by caustic digestion than by acidic digestion.The comparative study on different digestion methods also revealed that the fraction of MBP converted to gaseous phosphine during the digestion depended on the temperature.The optimal digestion temperature was close to 70℃ and the optimal digestion time was about 20 min.Acidic conditions were more favorable for the release of matrix-bound phosphine compared to the neutral conditions.A proper water dilution can increase the production and emission of phosphine from the Antarctic penguin guanos. | ZHU Renbin LIU Yashu SUN Jianjun SUN Liguang GENG Jinju | 2009 | Journal of Environmental Sciences2009，21，2： | 3 |
| 19 | Paleoecological associations of middle Llandovery (Silurian) corals from Huaying Mountain, eastern Sichuan Province显示文摘Corals are comparatively abundant in the upper member of the Baiyun'an Formation (upper Aeronian to lowerest Telychian, Llandovery, Silurian) of Huaying, eastern Sichuan Province, Southwest China. Three coral associations have been recognized, i.e., in ascending order, the Mesofavosites Association, the Dentilasma Association, and the Paraceriaster Association. The Mesofavosites Association occurs at horizons indicating a shallow and high-energy environment. It is dominated by large favositids accompanied by a few broken pieces of halysitids and small solitary rugose corals. The Dentilasma Association has a pretty high coral diversity, dominated by the solitary rugose coral Dentilasma meitanense, together with some subordinative heliolitids and favositids. The sedimentary evidence shows that this association might live in a quiet and nutritive shallow water environment. The Paraceriaster Association yields in the grayish green calcareous mudstone indicating a comparatively deep water environment. Systematically it contains abundant fasciculate Paraceriaster micropora and a few favositids. The distinction among these three coral associations shows that corals could adopt different adaptive strategies under different environments, which provide some new data for the investigation on the ecology of Silurian corals and further study on the 'Lower Red Beds'. | WANG GuangXu ZHAN RenBin DENG ZhanQiu LIU JianBo | 2013 | Science China Earth Sciences2013，56，4： | 3 |
| 20 | A blockchain bee colony double inhibition labor division algorithm for spatio-temporal coupling task with application to UAV swarm task allocation显示文摘It is difficult for the double suppression division algorithm of bee colony to solve the spatio-temporal coupling or have higher dimensional attributes and undertake sudden tasks.Using the idea of clustering,after clustering tasks according to spatio-temporal attributes,the clustered groups are linked into task sub-chains according to similarity.Then,based on the correlation between clusters,the child chains are connected to form a task chain.Therefore,the limitation is solved that the task chain in the bee colony algorithm can only be connected according to one dimension.When a sudden task occurs,a method of inserting a small number of tasks into the original task chain and a task chain reconstruction method are designed according to the relative relationship between the number of sudden tasks and the number of remaining tasks.Through the above improvements,the algorithm can be used to process tasks with spatio-temporal coupling and burst tasks.In order to reflect the efficiency and applicability of the algorithm,a task allocation model for the unmanned aerial vehicle(UAV)group is constructed,and a one-to-one correspondence between the improved bee colony double suppression division algorithm and each attribute in the UAV group is proposed.Task assignment has been constructed.The study uses the self-adjusting characteristics of the bee colony to achieve task allocation.Simulation verification and algorithm comparison show that the algorithm has stronger planning advantages and algorithm performance. | WU Husheng LI Hao XIAO Renbin | 2021 | Journal of Systems Engineering and Electronics2021，32，5： | 3 |
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