Surface Calculations from Size Distribution Functions.

Sample size and power calculations using the noncentral t-distribution

Abstract. The standard formulas for sample size and power calculation, as implemented in the command sampsi, make use of a normal approximation to the t-distribution. When the sample sizes are small, this approximation is poor, resulting in overestimating power (or underestimating sample size). One particular situation in which this is likely to be important is the field of cluster randomized t...

Size Distribution Particle Modes Surface approximation Geometric Mode

Surfaces of polycarbonate Selective Laser Sintering parts are investigated to determine the characteristics aaecting part quality. Surfaces are obtained from experiments by varying four factors, namely, layer thickness, laser power, part orientation, and build angle. First, spatial modes on SLS surfaces are decomposed using a qualitative spectral analysis in an attempt to nd their origins. Ther...

Inferring Trading Strategies from Probability Distribution Functions Inferring Trading Strategies from Probability Distribution Functions

14.5 Estimators for Parameters of Drop-size Distribution Functions: Sampling from Gamma Distributions

This work represents a continuation in the investigation of techniques to estimate the parameters for raindrop-size-distribution (DSD) functions. Although moment estimators are often used to estimate these parameters, our previous work (Smith and Kliche, 2005; Smith et al., 2005) showed that the method of moments produces biased results that can lead to misleading extrapolations, and that the r...

Mono-Size Distribution Index (MSDI): A new criterion for the quantitative description of size distribution

Graphical size distribution is widely used in different fields of science and studies related to powders, droplets, bubbles, and pores. However, in some condition it may also be necessary to express the size distribution quantitatively. In spite of there being several suggested ways to quantify size distribution in the literature, some of these approaches are not applicable for many methods and...