非平衡定态系统空时相关函数在相变临界点的表现

从规格化模型出发，考虑空间因素和时间因素，定义相关函数并考察相关函数在临界点的表现及其与“巨涨落”形成的关系。     

数字信号处理中的一种可调系数滤波方法

本文引用了偏差函数、直接计算转移函数,实现了不同要求数字信号的滤波。     

Bathynotus: A key trilobite taxon for global stratigraphic boundary correlation between Cambrian Series 2 and Cambrian Series 3

The Cambrian trilobite Bathynotus is a special morphology of Redlichiid,which is characterized by a wider thorax axis and an 11th macropleural segment bearing a long,backwardly directed spine.Additionally,its 12th and 13th pleural segments are narrow and they terminate at a fulcrum where they fuse together and to the posterior edge of the long macropleural spine.The genus is widely distributed,occurring in North America,Siberia,the Altay-Sayan fold belt of Russia,South China,the Tarim Basin of China,and Australia.It occurs primarily in deposits of the upper part of the continental slope,at the transition between stable platform settings and subsiding margins of the late Early Cambrian.Here,we recognize three species of Bathynotus from China,including B.holopygus which is widespread around the world.Although six species of Bathynotus have been reported from Siberia and the Altay-Sayan fold belt area of Russia,data presented here suggest that only three of these species are valid.Bathynotus exhibits a short geological range,with its first occurrence late in the unnamed Cambrian Series 2 and the last appearance datum of Bathynotus at the boundary of Cambrian Series 2 and Cambrian Series 3.The late appearance datum (LAD) of Bathynotus provides an important global stratigraphic marker of the boundary between Cambrian Series 2 and Cambrian Series 3.     

旋转圆筒型平衡过滤中过滤助剂的促进作用机理

通过在难过生微晶土科液（ＭｉｃｒｏｃｙｓｔｉＳｌｕｒｒｙ）中添加适量的过滤助剂高岭土（ＫｏｒｅａｎＫａｏｌｉｎ），硅藻土（Ｄｉａｔｏｍｉｔｅ）和高分子凝集剂（Ｐｏｌｙａｃｒｙｔａｔｅ Ｓｏｄｌｉｕｍ）聚丙烯酸钠，在不同的操作条件下对精密平衡过滤的促进作用进行了探讨，研究结果表明添加过滤助剂和凝聚剂可以明显提高难过滤性料液的过滤速度。     

Sensor Fault Tolerant Generic Model Control for Nonlinear Systems

Introduction　　Conventionalfeedbackcontrolforacomplexprocessmayresultinunsatisfactoryperformance,oreveninstability,intheeventofmalfunctionsinactuators,sensorsorothersystemcomponents.Aclosed-loopcontrolsystemwhichtoleratesmalfunctions,whilestillmaintainingdesirableperformanceandstabilityproperties,canbesaidtobefaulttolerant[1].Faulttolerantcontrolenablesincreasedavailabilitybyavoidinginadvertentprocessshutdownsfromsimplefaults,e.g.,ininstrumentationandcontrolloops,thatcouldresultinproductionst…     

判定数据对延迟模型影响的度量

从距离角度讨论数据对延迟模型的影响，建立了延迟模型中的Ｃｏｏｋ距离，并研究了Ｃｏｏｋ距离与相关系数之间的关系。     

数学系若干课程的相关分析及条件相关分析

利用数理统计的相关分析及其独立图模型对数学系若干课程的相关性及条件独立性进行了定量分析.为数学系的课程设置及改革提供了依据,为教师及学生如何进行相关课程的教和学指出了探讨的方向.     

滤光镜的因数与应用

本文对滤光镜的因数与影响滤光镜因的三个因素，以及滤光镜曝光僧数的计算方法；滤光镜的缺陷及检验方法等方面进行了分析，对在摄影创作中正确的了解和应用滤光镜的因数，提供十分必要和有益的帮助。     

基于PSRT的大连豆粕期货价格的混沌判据

通过相空间重构技术,对大连豆粕期货价格增长率的时间序列分别进行相空间重构,应用Wolf方法得出最大的Lyapunov指数,从而给出系统混沌存在的证据;利用关联函数求出关联维度和Kolmogorov熵,从而给出对系统的混沌程度的估计和对大连豆粕期货价格进行有效性预测的时间尺度.     

黑龙江垦区粮食产量影响因素研究

利用2003—2012年黑龙江垦区统计年鉴的粮食生产统计数据,选取9个对粮食生产影响比较密切的指标进行实证分析,运用灰色关联法对影响粮食生产因素进行关联度大小计算,研究了影响黑龙江垦区粮食生产的关键因素并进行了关联分析,为政府部门提供政策参考.