J. S. Hong1, S. H. Ko2, K. H. Kang2, and I. S. Kang1
1Department of Chemical Engineering, POSTECH, South Korea
2Department of Mechanical Engineering, POSTECH, South Korea
Electrowetting shows some distinctive features when an AC electric field is applied. This includes the delay of the dielectric breakdown of insulating layers and the delay of contact-angle saturation. To enhance our understanding on those phenomena, yet to be fully explained, we investigated the fundamental nature of AC EWOD (electrowetting on dielectrics), both numerically and experimentally.The ...
Korea Atomic Energy Research Institute, Korea
This paper presents the application of the nesting method to wind fields on coarse grid to then produce a fine grid wind fields. This is done using COMSOL Multiphysics. Fine-grid wind fields, which are considered to be an urban structure, were useful in drawing scenarios for counter terrorist attacks.Also, it was confirmed that COMSOL Multiphysics could be easily applicable to multi-nesting to ...
S.-K. Kim1, S.-R. Kim2, and J. Kim1
1Korea Institute of Radiological and Medical Sciences (KIRAMS), Korea
2Hanil Nuclear Co., Ltd., Korea
The large-scale production of various radioisotopes is usually carried out with a disk type target system in which solid target materials are located in a stack and a cooled by forced water-cooling. Although the production yields of radioisotopes can be enhanced by employing high currents of proton beams, the maximum beam powers (beam energy multiplied by beam currents) deposited on targets is ...