http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
초소형 광디스크 드라이브를 위한 스윙암 타입 액추에이터 설계
오제승(Oh, Jeseung),박세준(Park, Se-June),이동주(Lee, Dong-Ju),정호섭(Jung, Ho-Seop),박노철(Park, No-Cheol),박영필(Park, Young-Pil) 한국소음진동공학회 2005 한국소음진동공학회 논문집 Vol.15 No.6
Recently, the need for subminiature storage systems has increased with the diversification of portable devices. An actuator for small optical disk drives has to satisfy performance requirements such as higher access speed, lower power consumption, and smaller size. In this paper, we proposed the miniaturized rotary type VCM actuator that had an effective focusing mechanism and secured sufficient bandwidth for small form factor (SFF) optical disk drive (ODD). Initial model was designed by electromagnetic (EM) and structural analyses. Such a model was improved using design of experiments (DOE) procedure based on a Blu-ray disk (BD) 1x specifications.
황제승(Jeseung Hwang),이홍래(Hongrae Lee),문미경(Mikyeong Moon) 한국컴퓨터정보학회 2013 한국컴퓨터정보학회 학술발표논문집 Vol.21 No.2
스마트 모바일 기기는 PC에 접속하여 PC 원격제어가 가능하다. 본 논문에서는 스마트 모바일 기기의 원격제어 기능을 이용하는 블루마블 게임의 개발 내용에 대하여 기술한다. 이는 하나의 PC에 다수의 클라이언트가 한 자리에서 모여, 자신의 스마트 모바일 기기를 원격 접속시킨 후, 블루마블 게임을 할 수 있도록 한다.
정혜원,이제승,송강훈,박민서,안준모,Hyewon Jung,Jeseung Lee,Ganghoon Song,Minseo Park,Junmo Ahn The Korean Institute of Resources Recycling 2024 資源 리싸이클링 Vol.33 No.1
Critical minerals such as nickel, cobalt and lithium, are known as materials for cathodic active materials of lithium ion batteries. The consumption of the minerals is expected to grow with increasing the demands of electric vehicles, resulting from carbon neutrality. Especially, the demand for LIB (lithium ion battery) recycling is expected to increase to meet the supply of nickel, cobalt and lithium for LIB. The recycling of EOL (end-of-life) LIB can be achieved by leaching EOL LIB using inorganic acid such as HCl, HNO<sub>3</sub> and H<sub>2</sub>SO<sub>4</sub>, which are regarded as hazardous materials. In the present study, the potential use of MSA (Methanesulfonic acid), as an alternative lixiviant replacing sulfuric acid was investigated. In addition, leaching behaviors of NCM black mass leaching with MSA was also investigated by studying various leaching factors such as chemical concentration, leaching time, pulp density (P/D) and temperatures. The leaching efficiency of nickel (Ni), cobalt (Co), lithium (Li), and manganese (Mn) from LIB was enhanced by increasing concentration of lixiviant and reductant, leaching time and temperature. The maximum leaching of the metals was above 99% at 80℃. In addition, MSA can replace sulfuric acid to recover Ni, Co, Li, Mn from NCM black mass.