Article(id=1242117054875107330, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242117052853453824, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1233417600000, receivedDateStr=2009-02-01, revisedDate=1249488000000, revisedDateStr=2009-08-06, acceptedDate=null, acceptedDateStr=null, onlineDate=1251388800000, onlineDateStr=2009-08-28, pubDate=1251388800000, pubDateStr=2009-08-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1251388800000, onlineIssueDateStr=2009-08-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774073383298, creator=sys-migrate, updateTime=1774073383298, updator=sys-migrate, issue=Issue{id=1242117052853453824, tenantId=1146029695717560320, journalId=1146031591421210625, year='2009', volume='27', issue='0916', pageStart='3', pageEnd='140', issueExtLink='null', onlineDate='null', pubDate='1251388800000', pubDateStr='2009-08-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774073382818, creator='sys-migrate', updateTime=1774073382818, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=60, endPage=65, ext={EN=ArticleExt(id=1242117058721284110, articleId=1242117054875107330, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Simulation of Transient Sediment Transport Processes in a River Network with Water Diversions, columnId=1242116080374710456, journalTitle=Science & Technology Review, columnName=Articles, runingTitle=null, highlight=null, articleAbstract=The confluence of streams is a fundamental process in natural river networks, while a diversion is often related to hydraulic projects. Both the confluence and diversion will cause changes of the discharge, and result in variations of the Quantity of Erosion or Sedimentation(QES). The latter is of practical significance. In this paper, a sediment transport dynamic model, based on the consideration of streams confluence and/or diversion, is proposed to investigate the influence of water diversion on the mainstream. The model considers the mechanisms that the sediment-carrying capability of a stream is modified by the QES and driven by the sediment concentration of the injecting streams. This model can be used to numerically simulate the dynamic behavior of real river networks, to show that water diversion can cause sedimentation to increase. The transient dynamics reveals some interesting characteristics. (1) There is a critical value of the so-called diverting ratio of water at which the state of the segments below the diversion mouth will be transformed from increasing sedimentation to decreasing sedimentation. (2) Water diversion will cause the dynamics of sediment transport more complex, lead to an abrupt change of the erosion-sedimentation state. On each of the segments below the diversion mouth, the sedimentation will oscillate between the states of increase and decrease, as a quick response of the channel to the diversion. (3) If the diverting ratio is fixed and after the quick response, the oscillation extent will decay in the downriver direction. The sedimentation on each of the segments will exponentially decrease with time. (4) There is a maximum quantity of sedimentation on each of segments, as is dominated by a scaling law, that is, the quantity of sedimentation depends exponentially on the number of the segments. These may help us to better understand the nature of the sediment transport process in river networks., authors=null, authorsList=null, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=ax0TugiSJAhzWRVFY/1xfA==, pdfFileSize=902855, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1242117056418615630, articleId=1242117054875107330, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=河流网引水分沙的动力学瞬态模拟, columnId=1146540929516700224, journalTitle=科技导报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=汇流是河网上最基本的自然过程，引流则通常与水利工程相关。汇流和引流都会引起水沙变化，进而影响河道冲淤状态的变化。相较而言，对河道冲淤状态的研究更具现实意义。通过建立基于汇流-引流的河流网泥沙动力学模型，分析了在某一河段引流对其下游河段的影响，探讨了水沙变化与河道的冲淤调整。模型的模拟结果能够定性再现黄河上引流与河道冲淤之间的关系，即“引流增淤”。瞬态过程显示了冲淤动力学对分流比的强烈依赖；显示了冲淤动力学对水沙条件的复杂依赖。本研究发现了冲淤量沿程分布的指数标度律，获得了关于河网泥沙输移动力学的一些新理解。, authors=曹世峰,王旭明,霍杰,郝睿, authorsList=曹世峰;王旭明;霍杰;郝睿, authorCompany=宁夏大学物理电气信息学院, correspAuthors=null, authorNote=null, correspAuthorsNote=王旭明, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=9+cs+XuZ5n25cIxL2pfZ4Q==, pdfFileSize=902855, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null)}, authors=null, keywords=[Keyword(id=1242117056003379529, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242117054875107330, language=CN, orderNo=1, 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