2 0 0 0 OA 粉体の帯電メカニズム
- 著者
- 松山 達
- 出版者
- 日本エアロゾル学会
- 雑誌
- エアロゾル研究 (ISSN:09122834)
- 巻号頁・発行日
- vol.28, no.4, pp.245-250, 2013-12-15 (Released:2014-01-07)
- 参考文献数
- 22
In this paper the mechanism of contact- or tribo-electrostatic charging of powder was briefly reviewed.Although it is often referred that ‘electrostatics is mysterious’, but the fact should be noted that the entire system of the electromagnetism, such as Coulomb’s law, is ultimately well established. After this, there are parts of knowledge on electrostatics as well understood, miss-understood sometimes, and questions leftover, and these should be separated carefully. The central question to be answered is how much amount of charge is held by each particle. On this topic, two mechanisms of charge generation and of charge fixation were reviewed and discussed in general.
1 0 0 0 OA ミーの散乱理論の導出
- 著者
- 松山 達
- 出版者
- The Society of Powder Technology, Japan
- 雑誌
- 粉体工学会誌 (ISSN:03866157)
- 巻号頁・発行日
- vol.43, no.2, pp.115-124, 2006-02-10 (Released:2010-04-30)
- 参考文献数
- 6
- 被引用文献数
- 2 3
The Mie's theory of light scattering by a small spherical particle was reviewed in details. It is a classic theory in which the light is treated as an electromagnetic wave, and the incident light activates oscillation of polarized charge in a sphere which results in a radiation of electromagnetic wave as the scattered light. The mathematical realization of the theory consists of some steps as: (1) vector wave equation is derived from Maxwell's equations, (2) general solution of the vector wave equation is obtained on spherical coordinates, (3) plane wave as incident light is expanded on the spherical coordinates, (4) scattered wave from the sphere satisfying the boundary conditions is obtained. Each step was explained in details in the review.