中国含油气盆地砂泥岩黏土矿物的组合类型

通过对国内15个含油气盆地10余万块砂，泥岩样品黏土X射线衍射分析资料和地质特征的分析，将我国含油气盆地的黏土矿物组合划分为两大类共12种，分别代表不同的沉积和成岩环境，常见黏土矿物组合类型中，组合1～5分别代表早成岩A、B及晚成岩A、B、C等5种不同的成岩环境，组合6常见于高渗透储集层或煤系地层，组合7多见于生油凹陷中的低渗透储集层；特殊黏土矿物组合类型中，组合8反映膨润土夹层，组合9层映造山带深部地层不断剥蚀的快速堆积环境，组合10反映基性火山岩物源，组合11反映快速剥蚀堆积或富钾的沉积环境，组合12反映于旱富镁的沉积环境。     

Familiarity and plausibility in conceptual combination: Reply to Gagné and Spalding (2006).

E. J. Wisniewski and G. L. Murphy (see record 2004-22496-015) suggested that the apparent effects of relation frequency in C. L. Gagné and E. J. Shoben's (1997; see record 1997-02349-004) conceptual combination experiments could be explained by differences between the familiarity and plausibility of their stimuli (noun-noun phrases). However, C. L. Gagné and T. L. Spalding (see record 2006-20573-017) argued that Wisniewski and Murphy's measures of plausibility and frequency are both sensitive to relation frequency. They also suggested that the stimuli were mostly novel, such that differences in familiarity could not explain Gagné and Shoben's findings. The current authors focus on the theoretical rationale for the plausibility and familiarity variables, arguing that the original interpretation of their findings is correct. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Series resonant ZCS‐PFM DC‐DC power converter with high‐frequency high‐voltage transformer link for high‐power magnetron drive

This paper presents a single lossless inductive snubber‐assisted ZCS‐PFM series resonant DC‐DC power converter with a high‐frequency high‐voltage transformer link for industrial‐use high‐power magnetron drive. The current flowing through the active power switches rises gradually at a turned‐on transient state with the aid of a single lossless snubber inductor, and ZCS turn‐on commutation based on overlapping current can be achieved via the wide range pulse frequency modulation control scheme. The high‐frequency high‐voltage transformer primary side resonant current always becomes continuous operation mode, by electromagnetic loose coupling design of the high‐frequency high‐voltage transformer and the magnetizing inductance of the high‐frequency high‐voltage transformer. As a result, this high‐voltage power converter circuit for the magnetron can achieve a complete zero current soft switching under the condition of broad width gate voltage signals. Furthermore, this high‐voltage DC‐DC power converter circuit can regulate the output power from zero to full over audible frequency range via the two resonant frequency circuit design. Its operating performances are evaluated and discussed on the basis of the power loss analysis simulation and the experimental results from a practical point of view. © 2005 Wiley Periodicals, Inc. Electr Eng Jpn, 153(3): 79–87, 2005; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.20126     

重积分计算方法的一个注记

三重积分与三次积分的意义是不相同的。但是在一定条件下三重积分可以转化为三次累次积分来计算,其公式为:■     

核磁共振仪受环境随机激励的非线性隔离

本文针对核磁共振仪的隔离问题，采用非线性随机振动模型及非线性减振器的串联隔振，对隔振装置进行了理论计算，其结果与实测结果较一致。     

碟形托板拉深冲孔复合模具的设计与应用

通过煤矿用托板加工工艺的分析,确定了冲压工艺流程。设计、试制复合模,通过联动,使传统的分模合二为一,使拉深、冲孔、整形一道工序完成,提高了生产效率,降低了生产成本。     

一种基于串联混合型有源滤波器的仿真新方法

分析了串联混合型有源滤波器(SHAPF)的拓扑结构及其复合检测控制方法,基于瞬时无功功率理论,利用仿真软件MATLAB构建了一种新的三相系统模型。仿真的结果验证该新方法可以有效的对串联混合型有源滤波器的工作情况进行分析和参数设计,具有仿真精度高、速度快的特点。     

无记忆弱非线性系统的时域建模方法─Volterra级数的应用

提出了一种应用Ｖｏｌｔｅｒｒａ级数给一类无记忆弱非线系统的时域建模的方法．为系统Ｖｏｌｔｅｒｒａ核的辨识奠定了理论基础．     

非线性时间序列数据中的关联维提取

本文将混沌方法引入具有非线性时间序列的降雨量分析。首先对有关混沌及关联维的概念作简单介绍,在确定降雨量数据具有混沌特征后,对其进行关联维提取,得到颇具意义的结果。     

Time series analysis of wind speed using VAR and the generalized impulse response technique

This research examines the interdependence in time series wind speed data measured in the same location at four different heights. A multiple-equation system known as a vector autoregression is proposed for characterizing the time series dynamics of wind. Additionally, the recently developed method of generalized impulse response analysis provides insight into the cross-effects of the wind series and their responses to shocks. Findings are based on analysis of contemporaneous wind speed time histories taken at 13, 33, 70 and 160 ft above ground level with a sampling rate of 10 Hz. The results indicate that wind speeds measured at 70 ft was the most variable. Further, the turbulence persisted longer at the 70-ft measurement than at the other heights. The greatest interdependence is observed at 13 ft. Gusts at 160 ft led to the greatest persistence to an “own” shock and led to greatest persistence in the responses of the other wind series.