http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김지엽 ( Jiyeop Kim ),홍정구 ( Jung Goo Hong ) 한국분무공학회지 2020 한국액체미립화학회지 Vol.25 No.2
Electrospray is used in various industries because it can produce continuous and uniform droplets. However, it is difficult to find optimal spraying condition due to lack of data in various conditions. In this study, various conditions were divided into electric parameters and fluid property. The electric parameters set Nozzle to Substrate(NTS), nozzle diameters and the fluid property set viscosity and conductivity as conditions. In this study, it observes spray patterns, Sauter Mean Diameter( SMD) according to conditions. As a result, fluid properties had a greater effect on the cone-Jet mode than on the nozzle diameter, NTS, and flowrate. All of solutions have Stable cone-jet mode at voltage of 8.5 kV, NTS of 20 mm and nozzle diameter of 0.2 mm. SMD has 27% different depending on viscosity and conductivity. The increased flowrate and viscosity are rising break-up length and thickening jet also jet is thinned by increased conductivity. Experiments have confirmed that the jet is thickened by increased flowrate and viscosity, and that the jet is thinned by conductivity.
단순직선 모서리형 툴의 수평 이송 기판 상 고주기 진동압입 기반 연속적 나노패턴 생산 시스템 개발
김지엽(Jiyeop Kim),이윤규(Youn Kyu Lee),지강민(Kang Min Jee),이승조(Seungjo Lee),문승규(Seung Kyu Moon),옥종걸(Jong G. Ok) 한국생산제조학회 2018 한국생산제조학회지 Vol.27 No.3
We developed a continuous nanopattern manufacturing system that realizes a high-frequency vibrational indentation of a simple flat-edge rigid tool onto a horizontal-feeding polymer substrate with computer-based control. We first designed a process principle and its implementation modules, and subsequently constructed a system prototype. By controlling the tool vibration frequency and indenting force as well as the substrate feeding speed and stroke direction, we can create diverse nanopatterns with various periods and shapes including periodtunable nanogratings and multidimensional nanostructures. Such manufactured nanopatterns may be utilized in many potential applications involving precision machinery components, displays and light sources, sensors and actuators, and flexible electronics and photonics, all of which require tunable periods and shapes.