@article{oai:muroran-it.repo.nii.ac.jp:00008087,
 author = {渡辺, 治夫 and WATANABE, Haruo},
 journal = {室蘭工業大学研究報告. 理工編, Memoirs of the Muroran Institute of Technology. Science and engineering},
 month = {Nov},
 note = {application/pdf, In evaluating the quality of a binary particle-mixture various mixedness indices including the theoretical variance of samples are widely employed. The theoretical variance can be easily obtained when the number-proportion of particles to be mixed is previously given. However, the theoretical variance based on the particle mass-concentration in samples is difficult to obtain and it cannot be treated in the same manner as the number proportion, especially when the particles are composed with different size or weight each other. In this paper, the relations of the theoretical variances between number-proportion and mass-concentration are investigated in order to evaluate the randomness of particle-distribution in a mixture by comparing the observed variance with the theoretical variance. In addition, the method for estimating the theoretical variance of samples by a stratified sampling and the mixedness by the analysis of variance ratio are given in case that the theoretical variance is not known beforehand.},
 pages = {319--342},
 title = {混合度評価と質量基準粒子濃度},
 volume = {37},
 year = {1987},
 yomi = {ワタナベ, ハルオ}
}