3 0 0 0 粉体層に及ぼす球の衝撃作用:ボールミルの粉碎機構について
- 著者
- 森 芳郎 古城 健志
- 出版者
- The Society of Chemical Engineers, Japan
- 雑誌
- 化学工学 (ISSN:03759253)
- 巻号頁・発行日
- vol.18, no.4, pp.172-179, 1954
- 被引用文献数
- 1
球を粉体層へ落下させて貫入率を測定し,高速度写真を用いてその貫入率と衝撃力との関係を求め,更に球の下面の応力集中係数を理論的に解析して,最大衝撃応力を表わす式を次の如く決定した。<BR>この式によれば,従来ボールミル粉砕に関して得られている経験的事実がよく説明される.
1 0 0 0 OA スギ花粉症に対するアイピーディ®の効果
- 著者
- 水田 啓介 伊藤 八次 西田 基 秋田 茂樹 加藤 雅也 小塩 勝博 海田 健宏 古田 充哉 宮田 英雄 柳田 正巳 柴田 康成 横山 壽一 松原 茂規 小泉 光 森 芳郎 大野 通敏 近藤 由香 藤宮 大 山田 匡彦 渡辺 英彦 加藤 洋治
- 出版者
- 耳鼻咽喉科臨床学会
- 雑誌
- 耳鼻咽喉科臨床 (ISSN:00326313)
- 巻号頁・発行日
- vol.90, no.12, pp.1399-1407, 1997-12-01 (Released:2011-11-04)
- 参考文献数
- 14
IPD® (supratast tosilate) was investigated for its prophylactic efficacy and therapeutic efficacy in the treatment of cedar pollinosis during the 1996 cedar pollen season. The subjects investigated were patients at the Gifu University School of Medicine and its affiliated hospitals, who had a history of cedar pollinosis. The patients were classified into two treatment groups: the prophylaxis group (70 patients), in whom IPD® administration began before the start of cedar pollen dispersion, and the treatment group (49 patients), who underwent IPD® treatment only after cedar pollen dispersion had begun and symptoms of pollinosis had manifested.Results were as follows: (1) The nasal symptoms (sneezing, runny nose, nasal congestion) were milder in the prophylaxis group than in the treatment group throughout the cedar pollen season, with the difference being significant during the season's first 2 weeks. (2) In the prophylaxis group, IPD®'s inhibitory effect was rated as excellent in 18.6% of the patients, good in 45.7% and fair in 20.0%. In the treatment group, the improvement in the symptoms was rated as disappearance in 4.2%, excellent in 20.8% and good in 43.8%. (3) When symptom inhibition in the prophylaxis group was investigated as a function of the duration of IPD® administration prior to the start of pollen dispersion, the good + excellent inhibition rate was 57.7% in the subpopulation pretreated for <2 weeks (26 cases), 64.9% with 2 to <4 weeks' pretreatment (37 cases) and 85.7% with 4 to <6 weeks' pretreatment (7 cases). Thus, IPD®'s prophylactic inhibitory rate increased with the length of the pretreatment period. (4) In the prophylaxis groups, the CAP-RAST value was significantly reduced at the time of peak pollen level and at the end of the pollen season compared with the value before IPD® administration.
1 0 0 0 OA Hatch-Choateの公式を用いて計算される平均粒度標本値に関する統計学的検討
- 著者
- 森 芳郎 菅沼 彰
- 出版者
- 公益社団法人 化学工学会
- 雑誌
- 化学工学論文集 (ISSN:0386216X)
- 巻号頁・発行日
- vol.1, no.2, pp.197-201, 1975-03-10 (Released:2009-10-21)
- 参考文献数
- 6
Under an assumption that particle size x follows log-normal distribution in its parent population, any population mean particle size defined byΓ= {∫∞0xa+bƒ(x)dx/∫∞0xbdx} 1/cor Γ=exp {∫∞0 (lnxe)ƒ(x)dx} can be estimated by the following Hatch-Choate formula.gH=exp (Aμ+Bô2) μ=n∑i=1yi/n, ô2n∑i=1 (yi-μ) 2/ (n-1) yi=lnxi(A, B) = {a/c, a2+2ab/2c} or {e, 0} This estimate gH, which may be called sample mean particle size by Hatch-Choate, follows asymptotically log-normal distribution, that is, h=ln gH follows asymptotically normal distribution N {Ω, D2 (h)}.Ω=lnΓD2 (h) = (A2/n) σ2+ {2B2/ (n-1)} σ4So far as sample size n is larger than about 100, the distribution of h= ln gH can be approximately expressed by N {Ω, D2 (h)}. Owing to this conclusion, some of statistical tests and inference about population mean particle sizes become possible with a numerical table of t-distribution.