http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
미래전장환경에 필요한 유도무기 추진기술 고찰 및 산업체의 역할
문순일(Soonil Moon) 한국추진공학회 2010 한국추진공학회 학술대회논문집 Vol.2010 No.11
본 기술 논문은 일반적으로 공개된 미국의 자료를 중심으로 향후 유도무기의 발전 방향을 고찰하면서 이때에 요구되는 추진기술을 조사하였다. 미국의 각 군별 유도무기 및 추진체계의 개발내용을 조사 함으로써 향후 국내의 기술적 대비에 대하여 서술하였다. 세계적으로 정치적 경제적 환경이 변화하고 있으며 국방이 경제성장 동력의 역할을 하기 위해서는 산업체의 역할이 더욱 요구되고 있다. 이를 위하여 산업체는 중, 장기적으로 세계적 경쟁력을 갖는 부품개발 전략을 구축해야 할 것이다. This technical paper presents future missile trends and propulsion technologies necessary for the missiles. The views are based on open literature briefings of the United States and internet informations. These informations let domestic incorporations prepare technologies for the future. Political and economical environment has been changing worldwidely. More extensive role is required for the incorporations to increase the economic growth of our country. The incorporations should establish the long term product development strategy of their own to compete with foreign countries.
Mahalingam, T,Lee, Kyung Moon,Park, Kyung Ho,Lee, Soonil,Ahn, Yeonghwan,Park, Ji-Yong,Koh, Ken Ha IOP Pub 2007 Nanotechnology Vol.18 No.3
<P>The growth of ZnO nanorods on Au-coated ITO substrates using a low temperature wet chemical process is presented. Electron microscopy and x-ray diffraction observations reveal that the crystalline ZnO nanorods are preferentially oriented along the <I>c</I> axis. Room temperature photoluminescence (PL) measurements reveal a strong band edge emission at 382?nm, a signature of good crystallinity, with a weak and broad orange–red emission, which is typically attributed to the oxygen interstitials, in the range between 520 and 720?nm. Other than the second order feature of the band edge emission at 760?nm, no red or near-infrared bands are observed. The effect of precursor concentration on the morphological, structural and PL properties are studied, and the results are discussed. </P>
Kim, Sang Yong,Kim, Yesel,Lee, Kyung Moon,Yoon, Woo Sug,Lee, Ho Seok,Lee, Jong Tae,Kim, Seung-Joo,Ahn, Yeong Hwan,Park, Ji-Yong,Lee, Tai Kyu,Lee, Soonil American Chemical Society 2014 ACS APPLIED MATERIALS & INTERFACES Vol.6 No.16
<P>We report fully solution-processed fabrication of transparent conducting oxide-free counter electrodes (CEs) for dye-sensitized solar cells (DSSCs) by combining spray-coating of single-wall carbon nanotubes (SWCNTs) and chemical reduction of chloroplatinic acid precursor to platinum nanoparticles (Pt NPs) with formic acid. The power conversion efficiency of a semitransparent DSSC with such SWCNT-based CE loaded with Pt NPs is comparable to that of a control device with a conventional CE. Quantification of Pt loading shows that network morphology of entangled SWCNTs is efficient in forming and retaining chemically reduced Pt NPs. Moreover, electron microscopy and electrochemical impedance spectroscopy results show that mainly Pt NPs, which are tens of nanometers in diameter and reside at the surface of SWCNT CEs, contribute to electrocatalytic activity for triiodide reduction, to which we attribute strong correlation between power conversion efficiency of DSSCs and time constant deduced from equivalent-circuit analysis of impedance spectra.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/aamick/2014/aamick.2014.6.issue-16/am5019447/production/images/medium/am-2014-019447_0008.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/am5019447'>ACS Electronic Supporting Info</A></P>
Yim, Jong Hyuk,Joe, Sung-yoon,Pang, Christina,Lee, Kyung Moon,Jeong, Huiseong,Park, Ji-Yong,Ahn, Yeong Hwan,de Mello, John C.,Lee, Soonil American Chemical Society 2014 ACS NANO Vol.8 No.3
<P>We report the fabrication of efficient indium–tin–oxide-free organic solar cells based on poly(3-hexylthiophene-2,5-diyl):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM). All layers of the devices from the lowermost silver nanowire cathode to the uppermost conducting polymer anode are deposited from solution and processed at plastic-compatible temperatures <200 °C. Owing to the absence of an opaque metal electrode, the devices are semitransparent with potential applications in power-generating windows and tandem-cells. The measured power conversion efficiencies (PCEs) of 2.3 and 2.0% under cathode- and anode-side illumination, respectively, match previously reported PCE values for equivalent semitransparent organic solar cells using indium tin oxide.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/ancac3/2014/ancac3.2014.8.issue-3/nn406672n/production/images/medium/nn-2013-06672n_0007.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/nn406672n'>ACS Electronic Supporting Info</A></P>
초고온 동압을 밭는 제트 베인의 구조 안전성 평가에 대한 연구
박성한,이상연,박종규,김원훈,문순일,Park Sunghan,Lee Sangyeon,Park Jongkyoo,Kim Wonhoon,Moon Soonil 한국추진공학회 2005 한국추진공학회지 Vol.9 No.3
초고온(2700$^{\circ}C$ ) 연소가스에 직접 노출된 상태에서 가스유동에 의한 동압을 받는 추력편향장치용 제트 베인의 열구조 안전성을 평가하기 위하여 내열합금의 초고온 인장시험 및 3차원 비선형 수치해석을 수행하였다. 고온 구조거동을 분석하여 제트 베인의 구조안전성을 평가하였으며 구조해석결과를 지상 연소시험결과와 비교하였다. 구조 및 열 하중의 대부분은 제트 베인 축에 집중되었으며, 축은 1400$^{\circ}C$ 이하에서 구조적으로 안전한 것으로 밝혀졌다. 지상연소시험결과와 구조해석결과의 비교를 통하여 베인 하중과 축의 변위를 기준으로 구조안전계수를 평가하는 것이 등가응력에 의한 평가기준보다 더 유용한 기준으로 판단되었다. To evaluate structural safety factor of the jet vane for the thrust deflection system under the dynamic pressure and very high temperature(2700$^{\circ}C$ ) of the combustion gas flow, the high temperature tension tests of refractory metals and 3-D nonlinear numerical simulations are performed. Through the analysis of high temperature structure behavior for jet vane, the structure safety of jet vane is evaluated, and numerical results are compared with static ground tests of jet vanes. It has been found that most of structural and thermal loading is concentrated on the vane shaft which worked as safe under 1400$^{\circ}C$. From the comparison of static ground tests and numerical results, the evaluation criterion using the vane load and shaft displacement is more useful to estimate the structural safety than using the equivalent stress.