调节系统动态响应的灰色关联评判

本文根据灰色系统中关联分析原理对调节系统动态响应品质进行评判,提出了两种不同因素的评判算法,并通过水轮机调节系统的实例加以说明。     

基于ADAMS曲线同源机构运动特性仿真分析

根据罗培兹定理所提出的同源机构的概念和作法,作出了具体四杆杆机构及其同源机构。应用机构动力学仿真软件ADAMS,在保证原动件初始相位角一定的情况下,对原始机构及其同源机构连杆上轨迹相同点的运动特性进行仿真和分析,验证了原始机构和同源机构的传动角相同。     

同源连杆机构构成特性和传动角的研究

从理论上揭示了原始机构及其同源机构在尺寸型上的内在联系,即它们的确生成了同一条轨迹.还提出,同源机构与原始机构的对应构件有相同的角速度;在通常使用情况下,同源四杆机构与原始四杆机构具有相同的传动角.     

Answering quasi-randomized reading items without the passages on the SAT—I.

Examinees can correctly answer many Scholastic Assessment Test (SAT) reading items when the passages accompanying the items are missing. According to one hypothesis, examinees use information from other reading items (cognates) belonging to the same passage. The purpose of this study was to test that hypothesis for the revised SAT (SAT-I) reading task. Cognate information was diminished by dispersing cognates among other reading items from 4 parallel forms of the SAT-I. Examinee performance in this condition was inferior to performance in a control, where cognate information was readily available. Nonetheless, the correlation between performance and verbal SAT score in the experimental condition remained high and equivalent to the control. Examinees do seem to use cognate information when passages are missing on the SAT-I reading task, but such information is not among the no-passage factors that systematically affect reading performance. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

四杆曲线同源机构的构成特性和传动角的研究

四杆曲线同源机构与原始机构的对应杆长具有比例和对调关系，且同源机构要由反装构形得到，从而揭示出同源机构与原始机构在尺寸型上的内在联系；本文还提出：在大多数使用情况下，四杆曲线同源机构与原始机构具有相同的传动角     

The relationship between psychology and cognate fields.

"The listing in the university catalogues which were examined indicated that psychology was most often listed as a social science and next most frequently listed as a biological science. In several universities the psychology department was classified as both a biological and social science. In terms of specific departmental recommendations of courses, it was indicated that there was an interdependence between psychology and the various social sciences. Psychology was found to depend much more heavily on the biological sciences, physical sciences, and mathematics than those areas depended upon psychology. On the other hand, the social sciences, humanities, and service areas were found to depend much more heavily on psychology than the psychology departments depended upon them." (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

小曲柄齿轮五杆轨迹同源机构的尺度综合研究

讨论了小曲柄齿轮五杆机构的尺寸约束条件,根据复矢量理论和Fourier级数理论,分析了小曲柄齿轮五杆机构连杆轨迹谐波特征参数的特性,为数值图谱库中数据的压缩奠定了理论基础,建立了较为完善的小曲柄齿轮五杆机构连杆转角算子谐波特征参数的数值图谱,并对双曲柄齿轮五杆轨迹同源机构的几何关系进行了分析,实现了利用数值图谱法进行小曲柄齿轮五杆轨迹同源机构的尺度综合.综合算例表明该方法实用方便.     

四杆机构的同源齿轮五杆机构特性分析

从理论上揭示了原始机构及其同源机构在尺寸型上的内在联系,即它们的确生成了同一条轨迹。还提出:同源机构中的对应构件与原始机构有相同的角速度,采用同源机构可以改善原始机构的空间装配状况、运动性能,所以可为机构轨迹综合问题提供多解方案。     

Relationship between coupler curve properties of a 4-bar linkage and its dimensional types

Thatthesamecouplercurvecanbetracedbydifferentcognatemechanismsenrichesthedimensionalsynthesisofmechanismandcanresultinmorecandidatemechanismsforourdesign.AccordingtotheRoberts-Chebyshevlaw,thatisthecognatemechanismlaw,onecouplercurvecanbegeneratedbythreemechanismswithdifferentdimensions.Manypublicationsaboutcognatemechanismshavebecomeclassics.Ref.[1]gavethebackgroundofthecognatemechanismlawandhowtogetthecognatemechanismdimensionsbyCayleyDrawingMethod;inref.[2],adifferentmethodwasproposedford…     

四杆同源机构的构成特性和传动角特性

四杆曲线同源机构与原始机构的对应杆长具有比例和对调关系,且同源机构要由反装构形得到,从而揭示出同源机构与原始机构在尺寸型上的内在联系;在大多数的使用情况下,四杆曲线同源机构与原始机构具有相同的传动角.