background: in this study, an electroscrubber was designed and experimented for e valuation of integrating particle and droplet charging effects separately and jointly on collection efficiency of a spray tower and also to discover the optimal condition. methods: a homogenous concentration of relatively fine particles was introduced to influent air stream and electroscrubber efficiency in purify...

Ionic distributions near charged interfaces control processes from colloidal aggregation to solvent flow in nanodevices. Such are often characterized by a jump the permittivity, which gives rise surface polarization charge. This induced charge may significantly affect ionic so that efficient methods for modeling spatially varying dielectrics needed. We formulate method with O(N?log?N) scaling e...

We study a theory of particles interacting with strings. Considering such a theory for Type IIA superstring will give some clue about M-theory. As a first step toward such a theory, we construct the particle-particle-string interaction vertex generalizing the D-particle boundary state. A talk given at Kashikojima Workshop, August 19September 1, 1996.

We present a new concept for a beam position monitor with the unique ability to map particle beam position to a measurable wavelength. Coupled with an optical spectrograph, this beam position monitor is capable of subnanometer resolution. We describe one possible design, and through finite-element frequency-domain simulations, we show a resolution of 0.7 nm. Because of its high precision and ul...