与 «SPHERICITY»相关的英语书籍
在以下的参考文献中发现
sphericity的用法。与
sphericity相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
For example, if Mauchly's Test of Sphericity is significant or the Epsilon value is
low. n The most popular test is Wilks' Lambda. From this we can see that there is
a significant main effect for our repeated measures factor 'time', F(2,9) = 135.93; ...
Perry R. Hinton, Isabella McMurray, Charlotte Brownlow, 2014
2
Handbook of Psychology, Research Methods in Psychology
The relevant assumption of sphericity is violated when the variances of difference
scores among pairs of levels of a repeated-measure IV are unequal. That is, the
variance in difference scores between two adjacent levels (e.g., a, and a2) is ...
Irving B. Weiner, John A. Schinka, Wayne F. Velicer, 2003
There are two aspects of shape: sphericity and form. Sphericity is a quantitative
parameter measuring the departure of a body from equidi- mensionality. Sneed
and Folk (1958. pp. 117- 25) review the various measures of sphericity and ...
4
Encyclopedia of Soil Science
Particle shape can be described by parameters such as sphericity and
roundness.'13'14' Sphericity refers to the degree to which particles approach
spherical shape, whereas roundness describes the angularity of particle corners.
Wadell'151 ...
5
Microfacies of Carbonate Rocks: Analysis, Interpretation and ...
The sphericity of grains is described as very elongated, elongated, slightly
elongated, slightly spherical, spherical, very spherical (Shell Standard Legend 1
995). The chart enhances rapid measurement and closely spaced discrimination
of ...
6
Measurement of Blast Fragmentation
1.2 Axis Ratios Studies of fragment shape have been advanced to a
considerable degree in geological applications, where sphericity and roundness
are important measures of sediment abrasion during transportation by rivers or
glacial ice.
John A. Franklin, T. Katsabanis, 1996
7
Experimental Design and Data Analysis for Biologists
Note that compound symmetry is simply one form of sphericity; a vari- ance-
covariance matrix which shows compound symmetry also shows sphericity by
definition. If the sphericity assumption is not met, then the F test for treatments in
RCB ...
Gerald Peter Quinn, Michael J. Keough, 2002
8
Mechanical Operations, 1E
Table 2.2 Sphericity values of some materials Industrial products Sphericity, O
Food Materials Sphericity, O (Size range = 55 - 440 um) Silica sand Concentrates
of rutile Ilmentite Titania slag 0.7 0.8 0.8 0.5 Wheat Bean Intact red lentil ...
9
Foseco Ferrous Foundryman's Handbook
John R. Brown. Grain shape Grain shape is defined in terms of angularity and
sphericity. Sand grains vary from well rounded to rounded, sub-rounded, sub-
angular, angular and very angular. Within each angularity band, grains may have
high ...
10
Handbook of Fluidization and Fluid-Particle Systems
7.5.1 Use of Ergun Equation to Determine Sphericity Factor Subramanian and
Arunachalam (1980) suggested a technique making use of the Ergun equation to
determine the sphericity of irregular particles. For very low flow rates, the viscous
...
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找出国内和国际出版社所讨论的内容，以及词语
sphericity在以下新条目的上下文中是如何使用的。
Canadian companies vying to scoop up bigger share of frack sand …
"Sphericity and roundness are important for strength, as is quartz content." The best sand in the business is known as "Northern White," and many Canadian ... «mysask.com, 七月 15»
Victory Nickel Provides Corporate and Operations Update
Frac sand must have particular characteristics including achieving certain levels of crush resistance, sphericity and roundness, and it is therefore a relatively rare ... «MarketWatch, 六月 15»
NASA's New Horizons Probe Reveals Many "Faces" Of Pluto
LORRI uses a specific technique called deconvolution, which makes the planet look non-spherical. The lack of sphericity is also due to Pluto's big variations in ... «Clapway, 六月 15»
Early Studies Suggest Lasting Benefits From Percutaneous Fix for …
Median MR grade declined from 3.5 to 1 during follow-up (P = .002), regardless of baseline valvular alterations, LV size, or sphericity. There also were ... «TCTMD, 四月 15»
Consistent superiority of selective serotonin reuptake inhibitors over …
For the comparison-level analysis of all different effect parameters, Mauchly's test indicated the assumption of sphericity to be violated (P<0.001); however, the ... «Nature.com, 四月 15»
Modelling the Free-Fall Heating of Particles with a Wide Size …
By definition, the sphericity of a sphere is 1. The shapes such as octahedra, tetrahedral and cubes that one may anticipate to find in a crushed hard material are ... «Azom.com, 四月 15»
Conceptualization and validation of an open-source closed-loop …
Mauchly's test indicated that the assumption of sphericity had not been violated. RM-ANOVA showed that the effect of different interventions on percentage of ... «Nature.com, 四月 15»
Victory Nickel's Bear Coulee Frac Sand Project Exceeds API Specs
The analytical results for roundness, sphericity, turbidity and crush resistance from four samples collected from the first four boreholes drilled on the property are ... «Marketwired, 三月 15»
Select Sands Confirms 69 feet (21 m) of Pure Silica /"API Tier-1 …
Drill hole ST14-03 sample 0-69 feet (0-21 m) was analysed by Stim-Lab for sieve analysis, crush resistance, silica content (SiO2%) sphericity and roundness, ... «MarketWatch, 三月 15»
U of M Professors receive 2014 Cozzarelli Prize
This process of forming low symmetry structures by maximizing what is termed sphericity turns out to also play a role in the atomic structure of certain elemental ... «UMN News, 二月 15»
