20(1)-12[PM리뷰].fm

Size: px
Start display at page:

Download "20(1)-12[PM리뷰].fm"

Transcription

1 J Kor Powd Met Inst Vol 0 No DOI: /KPMI PM Review s l ƒ z w Á yá aá bá vc w aw» pk bw»» c w œw Trend in Research and Development of Recovery of Valuable Metallic Powder from Wasted Batteries Shun-Myung Shin Sung-Ho Joo Dong-Won Lee a Jung-Yeul Yun b and Jei-Pil Wang c Extractive Metallurgy Group Korea Institute of Geoscience & Mineral Resources (KIGAM Daejeon Korea a Titanium Department Korea Institute of Materials Science (KIMS Changwon Kyungnam Korea b Powder Technology Research Group Korea Institute of Materials Science (KIMS Changwon Kyungnam Korea c Department of Metallurgical Engineering Pukyong National University Busan Korea 1 s ƒ w w s p e p ƒ»» ƒ w w y f 30 m 1 s³ 40 w 1 75 ƒ q ƒ 1 1 wš w [1] w wš 80% wš w 00~400z ¾ ƒ w û ƒ 10% f -e p ù 10% wš [] y š 1 y w ùkü y w ƒ w yw m ew»yw mw yw» y j yw + w w ƒ 1 ù 1 ƒ y š e l y p œ» ƒ w p û fe f s y w t 1 z ƒ w t ùkü e y y š w p 1 w l p y l w ƒ Lead Acid Pb Ni-Cd f e sw p ã ƒwš p p g pƒ w Fig 1 Classification of commercial battery [3] *Corresponding Author : Jei-Pil Wang TEL: FAX: jpwang@pknuackr 60

2 s l ƒ z w 61 Table 1 Types of battery and chemical compositions [5] Battery ( Electrolyte (+ Fe Zn Mn Ag Hg Li Pb Ni Cd Co Valuable Metals Alkaline Manganese Zn KOH(NaOH MnO Zn Mn CF Li Primary Li LiBF 4 (LiClO Mn Li (MnO Silver Oxide Zn KOH(NaOH Ag O Zn Lead Acid Pb H SO 4 PbO 65 Pb Ni-Cd Cd KOH NiOOH Ni Cd Co Li-ion C6 LiPF 6 (LiBF 4 LiCoO 31 1 Li Co s w û e sw š w KOH NH 4 Cl p H SO 4» w y e w w w g p f p ƒ w y yw š ww z w» w s y š [4] s y» px w 1 w s y» px ùkü 197 s y» pxƒ 1994 ¾ ƒw z 000 ¾ wš ù ƒwš w š px y» w 1990 Recytec s y» w px 8 w ùkû 009 z px ƒ w w œ l w q w ƒ 1985 tƒ z t ƒ ƒw w y ùkû w ƒ» w 001 l 008 ¾ w Sao Paulo w 14 tw ùkû [6] ƒ w 3 px px ùkü v y ywš ww z w» w s y w œ» w 9 px 564% ƒ ùküš 18 63% š w «ùkù px ƒƒ w px ƒ j ùkû t px ƒƒ w w w ü pxy tw k 0 ü p x w [6] 3» w 4 s y px» Fig U Trend of the applied patent and paper by the year[6] Fig 3 The number of patent and paper by the country [6] Vol 0 No 1 013

3 신선명 주성호 이동원 윤중열 왕제필 6 Table Trend in technology and patent of domestic companies Company Fig 4 The number of patent and paper for detailed technologies [6] 건수를 나타낸 그래프이다 특허 및 논문의 기술별 건수를 살펴보면 금속회수 기술이 건으로 가장 많았으며 전처 리 기술은 건으로 나타났다 특허의 경우 금속회수 기 술이 건 전처리기술이 건 순으로 나 타났으며 논문은 금속회수 기술이 건 전처리 기술이 건 의 점유율을 차지하고 있다 %( %(61 93%(60 68%(19 3 [6] 폐전지 재활용 국내외 기술 동향 국내 시장 및 기술개발 동향 그림 는 국내 이차전지 제조 업체 현황 및 국내 전지 수요를 나타내고 있으며 표 에는 국내업체별 기술 및 특 허 현황을 나타내었다 현재 년 일차적으로 삼성 에서 개 월의 휴대폰용 온도퓨즈를 일본 사로부터 수입 사용이 시작 되었으며 온도퓨즈의 국산화 가 시급히 요청되고 있다 현재 국내상황에 비추어 볼 때 년 기준 년간 약 억개의 이차전지가 생산되고 있고 (010 SDI / panasonic 010 차적으로 백만개 원 천만개 년 의 온도퓨즈가 삼성 에서 사용되기 시작하였고 향 후 년 내에 온도퓨 즈 국산화에 다라 국내 생산 전량에 온도퓨즈가 사용 될 예정에 있어 년 후 부터는 생산량 만큼의 폐 온도퓨즈 가 발생될 것으로 예측이 된다 이차전지 시장의 확대 추 세에 따라 그 발생량은 더욱 증가될 것으로 예상되며 코 발트의 경우 금속 및 화합물 형태로 사용되고 있는데 코 발트 원소재별 국내 사용분야 및 사용량은 표와 같다 이 차전지업계는 현재 산화리튬코발트 형태로 사용하고 있고 초경합금 및 절삭공구 촉매 분야는 코발트 금속 및 분말 형태로 그리고 산화코발트 등의 화합물 형태로 수입 사용 하고 있다 1 5 / (6 SDI / 1~ ~3 31 Patent Method of recovery of high purity indium from indium liquid waste TSM Recovery of high purity indium oxide from wasted ITO scrap Method for recovery of indium Toricom Method for recovery of indium GMS Method for recovery of indium metal 9 digit Method for recovery of high purity indium Method for recovery of purity from wasted ITO scrap CSENG using nitirc acid Method of recovery of indium from wasted ITO target 5 Fig 5 Trend in domestic companies manufacturing secondary battery 해외 시장 및 기술개발 동향 그림 는 일 이차전지 연도별 시장가격 변화 추이를 나 타내고 있다 년 세계 전지시장 연료전지 태양전지 제외 규모는 억 달러로 연 평균 의 증가세를 보 ( 14% Fig 6 The change of market value of primary and secondary battery by year Journal of Korean Powder Metallurgy Institute (J Kor Powd Met Inst

4 s l ƒ z w 63 ƒƒ x w û SLI x 11 wš ù 5 5% NiCd NiMH t œ w 0 x wš š p 47 NiCd NiMH w ùƒš» ƒ x t 68 x wš 7% ƒ wš» IIT p ³ ƒ w wš 70% ƒ { s p» q w wš eù EU ƒ s l ƒ z w» w ƒ w š x y» ƒ z wš TMC ( AEA Technology( Bartec( Toxco( Recupyl(v z s w wš ƒ z wš s p y s š w w w w y»w q ƒ š z e w w wš s w z œ v w w š š ƒƒe z ƒ ƒ w Sony-Sumitomo( Inco Process( Recytec( Snam-Savam(v Accurec( z s y wš yws e š w w» p p y s x w w œ q y» š ƒ v p w ƒ ƒ w œ w w z ƒ û š ƒƒe z w w ƒ ƒ ƒ v w z w š š ƒ z q wš w» w z w š 41 z w y» ü wš s 80% w š e œ mw ƒ swwš k y e e e ƒ e k»yw mw y z wš s ƒ ƒƒ 0% 15%ƒ sw z w y w x ü Ÿ ƒ 7% w z» w š s y mw y wš»» w s q l ƒ k w» wš e w» w e s e w q z 8 mesh» e 8 mesh under ƒ š e x w s 7 ƒƒ ƒ yw k k x q» w q w q» j» 0 mm w e q œ s q» š q 4» w s l z w j / yw ù e œ e w Fig 7 Process diagram of physical treatment [7] Vol 0 No 1 013

5 신선명 주성호 이동원 윤중열 왕제필 64 Fig 8 (a Zn powder by electrowinning in NaOH solution (04A/cm (b SEM analysis of Mn Zn Ferrite [8] Fig 9 Flowsheet for treatment of waste Ni-Cd battery by wet process [5] 하면 최종배출물은 자성체 비자성체 8 mesh over 비자성 체 8 mesh under의 3가지로 분류되어서 배출되어진다 그 리고 침출에 사용되어지는 시약은 NH 의 함량이 30%인 (NH CO 와 NH 의 함량이 8%인 NH OH을 사용하여 침출용액을 제조하였다[7] 그림 8은 전류밀도 04A/cm 에서 석출된 아연을 나타낸 것으로 알카리용액에서의 아연 전해 채취 시 음극판에 분 말상(a으로 전착됨을 확일 할 수 있었다 또한 침출공정 에서 발생하는 폐수를 효율적으로 처리하고 고부가가치 제품을 제조하기 위하여 페라이트를 제조하였으며 SEM 을 이용하여 관찰해 본 결과 (b와 같이 약 0 nm 정도의 입자가 생성된 것을 확인 할 수 있었다 습식법으로 폐니켈-카드늄 전지를 처리하는 경우에는 우선 원료를 파쇄한 다음 적정 농도의 황산용액에 투입하 여 금속성분인 니켈과 카드늄을 용해시키고 그림 9에 도 시한 바와 같이 니켈과 카드늄의 수용액에 H S 혹은 Na S 를 첨가하게 된다 이때 카드뮴은 cadmium sulfide의 침전 으로 회수하며 잔류하는 황산니켈은 용액중의 철분을 제 거한 다음 농축하여 nickel carbonate와 nickel sulfate 결정 으로 제품화 한다 이 과정에서 니켈을 금속으로 회수하고 자 하는 경우에는 PC88A 혹은 DEHPA둥의 유기추출 제를 사용한 용매추출법과 전해채취법을 이용하여 금속 니켈을 얻을 수도 있으나 이때에는 적정 처리물량이 확 보되어야 경제성이 있으며 초기 설비비를 감안하여야 한다[5] 폐니켈-카드늄 전지를 처리하는데 있어 건식법 과 습식법을 병행한 처리공정에 관한 연구가 진행 중이 며 지속적인 처리 물량이 확보 될 경우에는 1차로 건식 법에서 카드늄을 분리하고 차 습식법을 통하여 고부가 가치의 니켈 제품을 회수하는 기술 개발이 계속 되어야 할 것이다 리튬일차전지는 음극활물질로서 금속 리튬을 사용하고 전해액으로 비수용매를 사용하는 전지의 총칭으로 전지 내부에 리튬금속이 포함되어 있어 다음과 같은 반응이 진 행되면서 격렬하게 수소를 발생시켜 리튬수화물을 형성 한다 Li + HO = LiOH + H 리튬일차전지의 해체시에 화재 및 폭발 위험이 있기 때 문에 방전을 시킨 후에 유압프레스를 물속에 위치시키고 전지를 물 속에서 해체되도록 실험을 수행하였다 군용으 로 사용이 되는 염화티오닐 리튬전지의 경우 전지내 리튬 금속이 반응하여 LiCl상태로 존재하고 물과 반응시 격렬 한 발열반응과 함께 이산화황 가스와 염산이생성되는데 이때 온도가 상승하게 되면 급격한 폭발과 화재가 발생 할 수 있다 SOCl + HO = SO + HCl 물리적 해체-파쇄-자력선별-분급 등의 과정을 거쳐 철 성분 플라스틱 성분 등을 분리하여 각각 판매하고 리튬과 탄소 니켈합급 등이 농축된 분말은 습식처리하여 각각을 Journal of Korean Powder Metallurgy Institute (J Kor Powd Met Inst

6 s l ƒ z w 65 Fig 10 Flowsheet for treatment of spent Li-ion battery by wet processes [8] p f yw œ x w mw z p q œ y ù s ù w» e m w [8] s p y œ 10 œ yw œ q œ g pƒ 600% sw g p 880% z w w yw œ y w e œ w y š 1/ 0 y 10 vol% 75 C g p p e ƒƒ 970% 990% ùkû y e g p 1:4 ƒw 7 g g p g p 950% z w [8] Fig 11 The ovreal process for recovery of valuable materials by heat-treatment 4 z w y» w w y ƒ j ƒ wš s y ƒ š y k y» w w s l ƒ z w wwš 11 s y œ yws š w w z ƒ wš y w» w œ w s ƒ ƒƒ œ mw t ƒ w z ƒ ƒ w yws š ü e 10 C/ w x (100~500 C 3 w z 10 C/ w w š w š e ü s w wƒ Ball-milling» w e ball WC 0 mm milling time 30 ü t t e mw ü yw ü / t ƒ t metal case top and bottom t case k t ƒ e ù v p s» w y q w y w ƒƒ t y ü yw ƒ ƒeƒ s ü w KOH NH 4 Cl p H SO 4»» s»w wz ƒw m»w ƒ œ v w œ y» wš š 00 C¾ z w ü»» s w» ƒ œ w (Zn e (Cd xk z ü 400 C torr š» y graphite condenser xk z e 300 C Vol 0 No 1 013

7 66 Á yá Á Á v w 500 C y ƒ»w x ww 1 ùkü œ e ü s w Ì metal top bottom š jacket w x š v ƒw w w xk q/ e t ü t k / q ( jacket Sieving e ü 75 µm ƒ t w» w s š w v ƒ xk w x ww x t 3 w t ùkù w z z w š x s w s x y w w 5 Fig 1 Battery component and powder collected from each wasted battery after heat-treatment process torr z œ e yw œ Co Ni Mn Mg ƒ w š x w» { t ƒ w ƒ w ã ƒw w ƒ ƒvw s j p s w ƒ ( f g p p f z w ƒ ã w w p ƒwš š p t ƒ šƒ w y» ƒw w Table 3 Chemical compostion of collected powder of each battery after heat-treatment process (Analyzer: AA Temperature: 500 o C [unit:wt%] Mn Ni Fe Zn Al Co Cd Li Manganese Alkaline Ni-Cd NiMH Li Primary Li ion Journal of Korean Powder Metallurgy Institute (J Kor Powd Met Inst

8 s l ƒ z w 67 y k y» s y w ( y: 11-A06-MR š x [1] JG P Wiaux and JG P Waefler: J Power Sources 57 ( [] T White: Status of Consumer Battery Recycling in Singapore ITE Lett Batter New Technol MedU 1(5 ( [3] y» w (006 [4] : p y» w w wz 13(5 ( [5] HGY Lee and BGW Cho: Prospective of Indus Chem 3( (000 3 [6] SG M Shin SG H Joo SG K Kim YG J Cho and BG G Cho: J Kor Int of Resources Recycling 1(4 (01 16 [7] SGM Shin JGG Kang JGS Shon DGH Yang and SGK Kim: JGKor Soc for Geosystem Eng 4( ( [8] z ½kx: y» p r 18(4 (005 1 Vol 0 No 1 013

12.077~081(A12_이종국).fm

12.077~081(A12_이종국).fm J. of Advanced Engineering and Technology Vol. 1, No. 1 (2008) pp. 77-81 y w» e wx Á w œw Fabrication of Ceramic Batch Composition for Porcelain by Using Recycled Waste Ceramic Powder Hyun Guen Han, and

More information

< DC1A4C3A5B5BFC7E22E666D>

< DC1A4C3A5B5BFC7E22E666D> ¼ (Jeong, Jung Chae)*, ý (Kim, Yoon Soo), (Shin, Woo Young), Þ Ñ (Park, Jong Man) ò ý ƒ Ð (Korea Evaluation Institute of Industrial Technology) (Shin, Jae-Heyg) Š æ (Ministry of Knowledge Economy) 1. :

More information

untitled

untitled [ ] œwz, 21«6y(2008) J. of the Korean Society for Heat Treatment, Vol. 21, No. 6, (2008) pp. 300~306 š y w p x*, **Á **Áy y* * ** w œ w œw, w» gœ Solid State Diffusion Brazing of the Aluminum Alloy Castings

More information

304.fm

304.fm Journal of the Korean Housing Association Vol. 20, No. 3, 2009 yw s w - û - A Study on the Planning of Improved-Hanok - Focused on Jeon-Nam Province - y* ** z*** **** Kang, Man-Ho Lee, Woo-Won Jeong, Hun

More information

16(1)-3(국문)(p.40-45).fm

16(1)-3(국문)(p.40-45).fm w wz 16«1y Kor. J. Clin. Pharm., Vol. 16, No. 1. 2006 x w$btf3fqpsu'psn û w m w Department of Statistics, Chonnam National University Eunsik Park College of Natural Sciences, Chonnam National University

More information

50(1)-09.fm

50(1)-09.fm 2006, Vol. 50, No. 1 Printed in the Republic of Korea 언빨래가마르는현상에대한중등학교화학전공교사들의인식조사 ½x Á» Á½ # Á x* w w yw y š w w # w w (2005. 5. 11 ) A Research of Secondary School Chemistry Major Teachers Perceptions

More information

16(5)-03(56).fm

16(5)-03(56).fm Journal of Korean Powder Metallurgy Institute DOI: 10.4150/KPMI.2009.16.5.316 ƒ w Fe œ w Cu wy SPS (I) I. ƒ wy y Á xá½ Á½ *Á½{ a w œw, a w» gœ Production of Fe Amorphous Powders by Gas-atomization Process

More information

69-1(p.1-27).fm

69-1(p.1-27).fm 99 A 380 B 787 : wœ z w * w w wœ» A380 B787 wœ» w. wœ» ww r. w wœ» p j y w r» w. I. II. z III. A380 B787 IV. A380 V. wœ» : x VI. z VII. I. A380 B787»ƒ z wœ w, w w p j w w ƒ r. t wœ w ƒ w w wœ» š œm wš,

More information

14.fm

14.fm Journal of the Korean Ceramic Society Vol. 44, No. 2, pp. 93~97, 2007. Preparation of High Purity Si Powder by SHS Chang Yun Shin, Hyun Hong Min, Ki Seok Yun, and Chang Whan Won Engineering Research Center

More information

fm

fm [ ] w wz DOI: 10.3740/MRSK.2009.19.12.692 Kor. J. Mater. Res. Vol. 19, No. 12 (2009) y INCONEL 718w Gas Tungsten Arc Welding» p sƒ ½»y Á *Á *Á y** ( ) d lj p wœq, *w wœ» q **( ) d lj p t Mechanical Properties

More information

16(5)-04(61).fm

16(5)-04(61).fm Journal of Korean Powder Metallurgy Institute DOI: 10.4150/KPMI.2009.16.5.326 ƒ w Fe œ w Cu wy SPS (II) II. w SPS p ½ *Á½ Á½{ a Á½ š b w œw, a w» gœ, b y œ Production of Fe Amorphous Powders by Gas-Atomization

More information

10(3)-10.fm

10(3)-10.fm w y wz 10«3y 259~264 (2010.12.) Journal of Korean Society of Urban Environment w gj p p y Á Á½k * w m œw Á* w y œw (2010 9 28, 2010 10 12 k) Characteristics of Antiwashout Underwater Concrete for Reduction

More information

82-01.fm

82-01.fm w y wz 8«( 2y) 57~61, 2005 J. of the Korean Society for Environmental Analysis p w w Á Á w w» y l Analysis of Influence Factors and Corrosion Characteristics of Water-pipe in Potable Water System Jae Seong

More information

10(3)-09.fm

10(3)-09.fm w y wz 10«3y 253~258 (2010.12.) Journal of Korean Society of Urban Environment ³ w Á» Á Á y w y œw (2010 11 22, 2010 12 9 k) Study on Determine of Detention Pond in Small Developed Area In-Soo Chang ½

More information

38(6)-01.fm

38(6)-01.fm y, 38«, 6y, 699-705, 2005 Econ. Environ. Geol., 38(6), 699-705, 2005 t sÿ y xk 1 Á s 2Á z 1 Á½ 1 Á e 3 1 w y w,» w, 2w y w, 3š w y w Chemical Speciation of Heavy Metals in Geologic Environments on the

More information

10(3)-12.fm

10(3)-12.fm w y wz 10«3y 273~280 (2010.12.) Journal of Korean Society of Urban Environment p yá xá½k w y œw (2010 9 15, 2010 12 2 k) Analysis of Characteristics of Delivered Nonpoint Source Pollution at Forested Watershed

More information

18(3)-10(33).fm

18(3)-10(33).fm Journal of Korean Powder Metallurgy Institute Vol 18 No 3 011 DOI: 10150/KPMI01118383 e x 5Mg(OH) MgSO 3H O x w MgO NH OH w a báv y aá½xk aá½ aá½ cá½ bá½ a * aw» l bš w œw ck Effect of MgO and NH OH on

More information

untitled

untitled ª Œª Œ 27ƒ 2B Á 2007 3œ pp. 193 ~ 199 ª ƒ w d w ƒ sƒ Methodology of Drought Assessment Using National Groundwater Monitoring Network Data «x Á½ Kwon, Hyung JoongÁKim, Seong Joon Abstract The objective

More information

14.531~539(08-037).fm

14.531~539(08-037).fm G Journal of the Korea Concrete Institute Vol. 20, No. 4, pp. 531~539, August, 2008 š x y w m š gj p { sƒ z 1) * 1) w w Evaluation of Flexural Strength for Normal and High Strength Concrete with Hooked

More information

( )-83.fm

( )-83.fm Journal of the Korean Ceramic Society Vol. 8, No. 1, pp. 0~5, 011. DOI:10.191/KCERS.011.8.1.00 Solidification of Heavy Metal Ions Using Magnesia-phosphate Cement HunG Choi, Hyun Ju Kang, Myung Shin Song,

More information

16(5)-06(58).fm

16(5)-06(58).fm Journal of Korean Powder Metallurgy Institute DOI: 10.4150/KPMI.2009.16.5.336 y-y w Sm-Fe w ƒ w zá *Á w»» The Effect of Excess Samarium Oxide on the PreparationG of Sm-Fe Alloy Powder by Reduction-diffusion

More information

18(3)-09(34).fm

18(3)-09(34).fm Journal of Korean Powder Metallurgy Institute Vol 18 No 011 DOI: 104150/KPMI0111877 s WC-Co w g p w LiCoO w bá½ a* a cáv y aw» l bw» c w» l œw Synthesis of LiCoO Powders using Recycled Cobalt Precursors

More information

93-09.fm

93-09.fm w y wz 9«( 3y) 199~206, 2006 J. of the Korean Society for Environmental Analysis sƒ(i) ½» *Áx Á * w yw w, w y œw Evaluation of Manual and Automated Methods in Total Nitrogen (TN) and Total Phosphorus (TP)

More information

11(5)-12(09-10)p fm

11(5)-12(09-10)p fm w wz J. Kor. Soc. Cloth. Ind. 11«5y, 2009 Vol. 11, No. 5, pp.799-807(2009) w w * k ƒm w pg p w, ƒm w q w A Qualitative Research on Pursuing Image and Appearance Management Behavior of Brides Eun-Joo Bae

More information

10(3)-02.fm

10(3)-02.fm w y wz 10«3y 203~211 (2010.12.) Journal of Korean Society of Urban Environment w ù p yá k«áyw *Á xá½k w y œw Á* y w (2010 9 15, 2010 12 2 k) Characterization of Nonpoint Source Pollutant Loads from the

More information

19(1) 02.fm

19(1) 02.fm Korean J. Crystallography Vol. 19, No. 1, pp.7~13, 2008 Ÿ (ICISS) w š t w (2): t w y w œw Surface Structure Analysis of Solids by Impact Collision Ion Scattering Spectroscopy (2): Atomic Structure of Semiconductor

More information

605.fm

605.fm Journal of the Korean Housing Association Vol. 19, No. 6, 2008 y k y p w sƒ Care-giver s Needs and Evaluation on the Actual Condition of the Playgrounds in Child Care Facilities y* Choi, Mock-Wha x **

More information

12(2)-04.fm

12(2)-04.fm J. Korean. Soc. Living. Environ. Sys. Vol. 12, No. 2, pp 106~111(2005) w y y w z œ k üœ» p ½ Á Á Á ³ Á Á½Ÿ w w w, *g», ** w w Effects of Strategies to Improve Indoor Air Quality at Pre-occupancy Stage

More information

DBPIA-NURIMEDIA

DBPIA-NURIMEDIA Printed in the Republic of Korea "/"-:5*$"- 4$*&/$& 5&$)/0-0(: Vol. 18, No. 5, 436-443, 2005,1"$ w Q) t p z Á 1w w œw 2 w œ yw Effects of surface properties and solution ph on the pollutants removal of

More information

16(2)-7(p ).fm

16(2)-7(p ).fm w wz 16«2y Kor. J. Clin. Pharm., Vol. 16, No. 2. 2006 ü t xy y w tœ ½ BÁ x BC B y w w w C y w w w Current Status and Expectations of Orphan Drugs in Korea -In point of supplying medicines for the rare

More information

10.063~070(B04_윤성식).fm

10.063~070(B04_윤성식).fm J. of Advanced Engineering and Technology Vol. 1, No. 1 (2008) pp. 63-70 Mg-3%Al-1%Zn w ƒœ» y Á x*á **Á Á w œw *w s l I ûer ** t Effect of Thermomechanical Treatment on Microstructure and Mechanical Properties

More information

9(3)-4(p ).fm

9(3)-4(p ).fm w wz J. Kor. Soc. Cloth. Ind. 9«3y, 2007 Vol. 9, No. 3, pp.319-326(2007) w xk x p w q w Analysis of Foot Characteristics According to the Classification of Foot Types of Junior High School Girls Ji-Young

More information

untitled

untitled Chapter 12. : - --------,,. -. 12.1 (galvanic cell, vltaic cell) (electrlytic cell) 6,, Cu(s) Cu 2+ (aq) + 2e - Ag + (aq) + e - Ag(s) ----------------------------------- Cu(s) + 2Ag + (aq) Cu 2+ (aq) +

More information

26(2)-04(손정국).fm

26(2)-04(손정국).fm Ñ s k w 1Á y 2 Á û 1 Á½ z 1 Á½ 1* 1 ³ w yw, 2 w» (*E-mail: jimankim@skku.edu) 1. m ƒ w»» w 4»» y š. w 4»» l, l, l w» w» k. w»» { ƒ j. x š x w ƒwš k (Direct Methanol Fuel Cell: DMFC)[1]ƒ wù ƒ w š. DMFC

More information

27(5A)-07(5806).fm

27(5A)-07(5806).fm ª Œª Œ 27ƒ 5A Á 2007 9œ pp. 753 ~ 758 gj pœw gj p { x A New Test Method for Pure Isotropic Flexural Tensile Strength of Concretes Ÿ Á y Á x Zi, GoangseupÁOh, HongseobÁChoi, Jinhyek Abstract Proposed is

More information

fm

fm [ ] w wz Kor. J. Mater. Res. Vol. 17, No. 3 (2007) Sn-3.0 Ag-0.5 Cu/OSP 무연솔더접합계면의접합강도변화에따른전자부품열충격싸이클최적화 y Á½{ *Á Á½Ÿ * t sƒ l *w wœ w wœ œw Thermal Shock Cycles Optimization of Sn-3.0 Ag-0.5 Cu/OSP Solder

More information

07.045~051(D04_신상욱).fm

07.045~051(D04_신상욱).fm J. of Advanced Engineering and Technology Vol. 1, No. 1 (2008) pp. 45-51 f m s p» w Á xá zá Ÿ Á w m œw Image Retrieval Based on Gray Scale Histogram Refinement and Horizontal Edge Features Sang-Uk Shin,

More information

DBPIA-NURIMEDIA

DBPIA-NURIMEDIA Printed in the Republic of Korea "/"-:5*$"- 4$*&/$& 5&$)/0-0(: Vol. 18, No. 5, 425-430, 2005» 677*4 Ÿ w sƒ ½»x Á Á½ k w y w, w y œw Some considerations for the analytical approaches to measure atmospheric

More information

50(5)-07.fm

50(5)-07.fm Printed in the Republic of Korea w 3w yû x w w w Á x* w w w yw (2006. 3. 14 ) A research of the Difference in Teaching Styles and Understanding of 9 th Grade Students About Lead-iodide Precipitation Reaction

More information

41(6)-09(김창일).fm

41(6)-09(김창일).fm 269 Ar v Na 0.5 K 0.5 NbO 3 t ½ t,, ½ w,, ½ w»œw Surface Reaction of Na 0.5 K 0.5 NbO 3 Thin Films in Inductively Coupled Ar Plasma w t œwz J. Kor. Inst. Surf. Eng. Vol. 41, No. 6, 2008. < > Dong-Pyo Kim,

More information

64.fm

64.fm Journal of the Korean Ceramic Society Vol. 44, No. 7, pp. 375~380, 2007. Tribological Properties of Carbon Layers Produced by High Temperature Chlorination in Comparison with DLC Coating Hyun-Ju Choi,

More information

12(3) 10.fm

12(3) 10.fm KIGAS Vol. 12, No. 3, September, 2008 (Journal of the Korean Institute of Gas) ü LP ƒ š Database w š Á Á½z w ywœw (2008 6 10, 2008 8 12 (1 ), 2008 9 5 (2 ), 2008 9 5 k) Constructing a Database Structure

More information

10(1)-08.fm

10(1)-08.fm w y wz 10«( 1y) 47~52, 2007 J. of the Korean Society for Environmental Analysis œ w t y ½ xá Á x Á½ Á x* Ÿ œ, * w œw Optimization of Coagulation In The Conventional Water Treatment Plant Jun-Hyun Kim,

More information

3.fm

3.fm Journal of the Korean Ceramic Society Vol. 44, No. 1, pp. 12~17, 2007. A Study on the Preparation of Bone Ash and Celadon Bone Body Using Pig Bone Jae-Jin Jeong, Sang-Hee Lee, Yong-Seok Lee,* and Byung-Ha

More information

82-02.fm

82-02.fm w y wz 8«( 2y) 00~00, 2005 J. of the Korean Society for Environmental Analysis Calix[6]arene w k š w *Á x Á Á«ƒm w yw, *w w yw Cesium Ion Selective Solid Contact Electrodes Based on Calix[6]arene Won-sik

More information

49(6)-06.fm

49(6)-06.fm Journal of the Korean Chemical Society 2005, Vol. 49, No. 6 Printed in the Republic of Korea 중학교과학교과서불꽃반응실험에서선스펙트럼관찰의문제점분석및개선연구 ½ Á Á * w w yw (2005. 10. 4 ) An Analysis and Improvement of the Line Spectrum

More information

32(4B)-04(7455).fm

32(4B)-04(7455).fm 32«4ByÁ 2012 7 pp. 233 ~ 242 œ w w w y œ r Estimation of Domestic Water Supply Benefit Using Demand Function Approach ³ Á Á½¼yÁ Yeo, Kyu DongÁYi, Choong SungÁKim, Gil HoÁLee, Sang Won Abstract In the past,

More information

19(5)-04[57].fm

19(5)-04[57].fm J. Kor. Powd. Met. Inst., Vol. 19, No. 5, 2012 DOI: 10.4150/KPMI.2012.19.5.348 pk gqd p d e x w y ûá Á½x a Á x b Á» w œw, a sw w, b w» Effects of Powder Morphology and Powder Preheating on the Properties

More information

(72) 발명자 김창욱 경기 용인시 기흥구 공세로 150-20, (공세동) 박준석 경기 용인시 기흥구 공세로 150-20, (공세동) - 2 -

(72) 발명자 김창욱 경기 용인시 기흥구 공세로 150-20, (공세동) 박준석 경기 용인시 기흥구 공세로 150-20, (공세동) - 2 - (19) 대한민국특허청(KR) (12) 공개특허공보(A) (11) 공개번호 10-2014-0034606 (43) 공개일자 2014년03월20일 (51) 국제특허분류(Int. Cl.) H01M 4/525 (2010.01) H01M 4/505 (2010.01) H01M 4/48 (2010.01) H01M 4/131 (2010.01) (21) 출원번호 10-2012-0101151

More information

16(5)-02(57).fm

16(5)-02(57).fm Jurnal f Krean Pwder Metallurg Institute Vl. 16, N. 5, 2009 DI: 10.4150/KPMI.2009.16.5.310 /ekœ w TiC/C w w ¼ *Áw a w œ w œw, a Snthesis f TiC/C Cmpsite Pwder b the Carbthermal Reductin Prcess Gil-Geun

More information

表紙(化学)

表紙(化学) 수험 번호 성 명 2013년 일본 공과대학 학부 유학생 파견 선발 시험 화 학 (90분 100점) 주 의 1 시험시작의 지시가 있을 때까지 열지 마시오. 2 해답은 해답용지의 지정된 난 안에 알아보기 쉽게 기입하시오. 3 해답에 한글이 포함되면 채점되지 않습니다. 필요한 경우, 아래의 값을 사용하시오. 원자량 H 1.0, C 12, N 14, O 16, Cu

More information

..........

.......... 통권 제101호(2007년 10월호) 특허가족 건강길라잡이(비만 시리즈4) 특허가족 건강길라잡이 (비만 시리즈 4) 변리사 김 일 성 킴스국제특허법률사무소 2. 비만과 영양소 4. 무기질(Minerals) 무기질은 단백질, 당질, 지질들과 달리 에너지를 낼 수 없고, 비타민류와 달리 조리과정에서 파괴되지 않는다. 그러나 물에 용해되므로 조리 중의 용액을 버리

More information

8(2)-4(p ).fm

8(2)-4(p ).fm w wz J. Kor. Soc. Cloth. Ind. 8«2y, 2006 Vol. 8, No. 2, pp.177-182(2006) x w e w 1) Á Ÿ 1) Á»û 2) 1) ƒm w q w 2) w w w The Effect of Media on Taking Plastic Surgery Chong-Hee Yun 1), Su-Kwang Sung 1) and

More information

82.fm

82.fm Journal of the Korean Ceramic Society Vol. 44, No. 9, pp. 524~528, 2007. Determination of Critical Chloride Content of Ordinary Portland Cement Concrete by Linear Polarization Technique Hong-Sam Kim, Hai-Moon

More information

18103.fm

18103.fm J. of the Korean Sensors Society Vol. 18, No. 1 (009) pp. 8 3 VO w PCM yá Á Á Ÿ Built-in protection circuit module by using VO temperature sensors K. H. Song, J. B. Choi, M. W. Son, and K. S. Yoo Abstract

More information

51(4)-13.fm

51(4)-13.fm Journal of the Korean Chemical Society 2007, Vol. 51, No. 4 Printed in the Republic of Korea w x - w y *Á š w w w yw (2007. 3. 28 ) Case Study on Verbal Interactions of Teacher-Small Group StudentsG in

More information

한 fm

한 fm Journal of the Korean Magnetics Society, Volume 19, Number 6, December 2009 DOI: 10.4283/JKMS.2009.19.6.203 BaTi 0.5 Co 0.5 Fe 11 O 19 Mx r p Ka- q p ½ Á½ w, œw, w», 12, 361-763 (2009 8 4, 2009 9 10, 2009

More information

50(4)-10.fm

50(4)-10.fm 2006, Vol. 50, No. 4 Printed in the Republic of Korea 칼코겐이도핑된망간산화물의저온합성연구 k Á z Á, *Áy, * y w ù w yw x ù l w» ww (2006. 7. 13 ) Chimie Douce Synthesis of Chalcogen-Doped Manganese Oxides Seung Tae Lim,GDae

More information

(163번 이희수).fm

(163번 이희수).fm Journal of the Korean Ceramic Society Vol. 48, No. 4, pp. 323~327, 2011. DOI:10.4191/KCERS.2011.48.4.323 Electrical Properties and Temperature Stability of Dysprosium and Erbium Co-doped Barium Titanate

More information

23(2) 71.fm

23(2) 71.fm J. of Korean Institute of Fire Sci. & Eng. [ ] Vol. 23, No. 2, 2009 w w w w w w Stud on the Fire Behaviour of Composite Beam with Loading and Unloading ½ *Á û**á½ ***Á½ Sung-Bae Kim* Chang-Nam Lee** Woo-Chul

More information

143.fm

143.fm Journal of the Korean Ceramic Society Vol. 43, No. 1, pp. 859~864, 006. FE Analysis of Alumina Green Body Density for Pressure Compaction Process Jong-In Im and Young-Jin Yook Simulation Center for Fine

More information

10 (10.1) (10.2),,

10 (10.1) (10.2),, Chapter 16 Precipitation Equilibria Copyright 2001 by Harcourt, Inc. All rights reserved. Requests for permission to make copies of any part of the work should be mailed to the following address: Permissions

More information

( )-113.fm

( )-113.fm Journal of the Korean Ceramic Society Vol. 46, No. 6, pp. 657~661, 009. DOI:10.4191/KCERS.009.46.6.657 Rheological Properties of Cement Pastes Blended Finex-Slag Powder Keun Jae Lee, Seung Ho Byun, and

More information

w w l v e p ƒ ü x mw sƒw. ü w v e p p ƒ w ƒ w š (½kz, 2005; ½xy, 2007). ù w l w gv ¾ y w ww.» w v e p p ƒ(½kz, 2008a; ½kz, 2008b) gv w x w x, w mw gv

w w l v e p ƒ ü x mw sƒw. ü w v e p p ƒ w ƒ w š (½kz, 2005; ½xy, 2007). ù w l w gv ¾ y w ww.» w v e p p ƒ(½kz, 2008a; ½kz, 2008b) gv w x w x, w mw gv ª Œª Œ 30ƒ 5A Á 2010 9œ pp. 475 ~ 484 gj p ª v e p p PSC ƒ gv : II. x w Precast Concrete Copings for Precast Segmental PSC Bridge Columns : II. Experiments and Analyses ½kzÁ½ Á zá x Kim, Tae-HoonÁKim,

More information

8(3)-15(p ).fm

8(3)-15(p ).fm w wz J. Kor. Soc. Cloth. Ind. 8«3y, 2006 Vol. 8, No. 3, pp.357-362(2006) w p k sƒ ½ Á Á w w w A Study on the Mechanical and Hand Properties of the Lining Fabrics Myung-Ok Kim, Mi-Kyung Uh and Myung-Ja

More information

fm

fm J. Fd Hyg. Safety 20(4), 253 257 (2005) ü w w w Áy»xÁ Á Á Á«Á Áw Á x Á yx Á½ Á½ Á½ t t» t t ƒ q Study on Management of Artificial Flavors in Korea Tal-Soo Lee, Young-Mi Jang, Ki-Hyoung Hong, Sung-Kwan

More information

93.fm

93.fm Journal of the Korean Ceramic Society Vol. 45, No. 10, pp. 625~630, 2008. Effect of Storage Conditions on the Setting Properties of Brushite Bone Cement Containing Granular β-tricalcium Phosphate Sun-Ae

More information

416.fm

416.fm Journal of the Korean Housing Association Vol. 20, No. 4, 2009 œ qp œ y An Analysis of Change on the Apartment Unit Plans and the Interior Spaces Related to Women * Choi, ByungSook ** Park, JungA "CTUSBDU

More information

83-07.fm

83-07.fm w y wz 8«( 3y) 137~142, 2005 J. of the Korean Society for Environmental Analysis sw n w Polychlorinated Biphenyls»y Áwx Á yá w w yw Analysis of Polychlorinated Biphenyls from Pohang and Gangseo, Busan

More information

<312D303128C1B6BAB4BFC1292E666D>

<312D303128C1B6BAB4BFC1292E666D> k Ÿy y y + ûz m Ì ˆw k Ÿ ø ky w y y» wk Ÿ v w k w w ƒ Ÿ ew k Ÿy yø k Ÿ ý k z» w ƒ w Ÿ y k y w x mw w w ³Ÿ wšy v mw y w r œw yÿ ý w z»ÿ Ÿ»» Ÿ ¾ Ÿ 6TCXGN 9GGMN[ ýw k Ÿ Ÿ ƒ š wš y w k Ÿ ƒ m ³ w w y y y 'EQVQWTKUO

More information

11(1)-15.fm

11(1)-15.fm w y wz 11«1y 73~80 (2011.8.) Journal of Korean Society of Urban Environment SWMM 을이용한도시지역비점오염부하저류시설용량산정 Áw«Á *Áy **Á½ yá½ Á x w w Á* û w y œw Á** w y lœw (2011 6 13, 2011 6 27 k) Determine Capacity of

More information

12(4) 10.fm

12(4) 10.fm KIGAS Vol. 12, No. 4, December, 2008 (Journal of the Korean Institute of Gas) l x CNG» v m s w ½ Á y w» œw (2008 9 30, 2008 12 10, 2008 12 10 k) Numerical Analysis for Temperature Distribution and Thermal

More information

<30332DB9E8B0E6BCAE2E666D>

<30332DB9E8B0E6BCAE2E666D> kœw» y w k p y w k» z wš ye z w mdkqvqrg üœ» y» Ÿ w kœwgeqgpikpggtkpiy glj GEQVGEJPQNQI[ œw w k w yz š y j œ w m w y ˆ mw y» kœ w k û ³ y ƒ ƒ» ƒ w œw w w y ƒƒ» k z w» %NGCP 9CVGT #EV wšw y ù» œ w w w t

More information

57.fm

57.fm Journal of the Korean Ceramic Society Vol. 45, No. 6, pp. 336~344, 2008. Rheological Properties of Cement Paste Blended Blast Furnace Slag or Fly Ash Powder Jong Taek Song, Hyo Sang Park, Seung Ho Byun,

More information

14(4) 09.fm

14(4) 09.fm J. Korean. Soc. Living. Environ. Sys. Vol. 14, No. 4, pp 343~350(2007) w y y w z 14 «4 y 2007 yw» l s p»xá ³ *w w w œw, **w w w The Property of Pressure Distribution of Hybrid Underfloor Air Distribution

More information

( )-123.fm

( )-123.fm Journal of the Korean Ceramic Society Vol. 48, No. 1, pp. 63~68, 2011. DOI:10.4191/KCERS.2011.48.1.063 Effects of Substituting B 2 O 3 for P 2 O 5 on the Structure and Properties of SnO-P 2 O 5 Glass Systems

More information

18211.fm

18211.fm J. of the Korean Sensors Society Vol. 18, No. 2 (2009) pp. 168 172 p k ù p p l xá xá ³ Á *Á w * Fabrication of the CNT-FET biosensors with a double-gate structure Byunghyun Cho, Byounghyun Lim, Jang-Kyoo

More information

4.fm

4.fm Journal of the Korean Ceramic Society Vol. 46, No. 1, pp. 30~34, 2009. Optimization of Glass Wafer Dicing Process using Sand Blast Won Seo, Young-mo Koo*, Jae-Woong Ko**, and Gusung Kim Department of Electronic

More information

50(6)-03.fm

50(6)-03.fm Journal of the Korean Chemical Society Printed in the Republic of Korea w yw w w ½ Á Áw Á k * w yw w w w w w (2006. 8. 9 ) Relationship between Conceptual Understanding and Mapping Errors Induced in Learning

More information

07.051~058(345).fm

07.051~058(345).fm w wz 8«3y 2008 6 pp. 51 ~ 58 m qp yp š w k sƒ Evaluation of Dynamic Modulus based on Aged Asphalt Binder y*á **Á***Á**** Lee, Kwan-HoÁCho, Kyung-RaeÁLee, Byung-SikÁSong, Yong-Seon Abstract Development

More information

20(2)-07[25].fm

20(2)-07[25].fm J. Kor. Powd. Met. Inst., Vol. 20, No. 2, 2013 DOI: 10.4150/KPMI.2013.20.2.129 SMPS l ( )ƒ ù d e w y Á w t w» t l The Effect of Water Droplets on the Nano Particle Size Distribution using the SMPS System

More information

( )-36.fm

( )-36.fm Journal of the Korean Ceramic Society Vol. 47, No. 3, pp. 232~236, 2010. DOI:10.4191/KCERS.2010.47.3.232 Development of the Abrasives for Water-jet by Using an Air Bubbling SedimentationG Rate Control

More information

16(4)-05.fm

16(4)-05.fm w m y Vol. 16(4), p. 53~61, 2011 œ 광물찌꺼기에함유된오염물질의안정화를위한표면차폐재의성능평가 ½ ³ 1 Á 1 *Á½ 2 Á½ 2 Á 3 Á 3 1 w œ w œw, 2 ( ) f lp, 3 w Ÿw œ Ÿw» Evaluation of Surface Water-preventing Materials on Stabilization of

More information

201.fm

201.fm Jour. Korean Earth Science Society, v. 31, no. 2, p. 119 128, April 2010 (w ) w x 1, *Á 2 1w Ÿ, 305-350, Ÿ w 92 2 w w œw, 402-751, Ÿ û x 253 A Comparative Analysis of Linearity and Range of Gravity and

More information

개최요강

개최요강 55 2009. 5. ( ) ( ) < > 1. 1 2. 2. 2. 3 1) 3 2) 3 3) GC-MS 4. 5 1) 5 2) 5 3) ICP-OES 6 3. 7. 7 1) 7 2) 10. 13 1) 1g 13 2),,, 14 3), 15 4),, 15 4. 17 19 < > [ 1] 2 [ 2] ICP-OES 6 [ 3] 13 [ 4] 1g 13 [ 5]

More information

<30312DC0CCC7E2B9FC2E666D>

<30312DC0CCC7E2B9FC2E666D> 균류의다양성과역할 이향범 û w œw 머리말 k w š ³ q š yw < Ð >» w ww k w w v š q w Á Á w tyw š 2QKPVKPI CPF *[FG ú ƒ x %QPXGPVKQP QP $KQNQIKECN &KXGTUKV[ %$&» w w ««wš y w» š x ƒ w œ ƒ» ƒ œsw w ³ wš ù š y š ƒ t š ƒ wš»ƒ

More information

03.fm

03.fm 29«6y (2009. 12) w œwz 257 š³ š p e ³ w y Á Á½ y *Á **Á y w» w w e lg Effects of Si and Mo on the Temperature-Dependent Properties of High Si High Mo Ductile Cast Irons Kyeong-Hwan Choe, Sang-Mok Lee,

More information

17(1)-06.fm

17(1)-06.fm Krean J. Crystallgraphy Vl., N. 1, pp.14~18, 006 LP-MOCVD w ZnO ù Ÿw p Á yá * w w» w» l Structural and Optical Prperties f ZnO Nanwires Synthesized by LP-MOCVD Prcess Yung-Jin Chi, Jae-Hwan Park and Jae-Gwan

More information

202.fm

202.fm Journal of the Korean Housing Association Vol. 19, No. 2, 2008 w w w w Physical Identities of Bukchon Hanok Area Viewed from Literary Geography * Park, Cheol-Soo "CTUSBDU This study explores the beneficial

More information

17(1)-08(06).fm

17(1)-08(06).fm Journal of Korean Powder Metallurgy Institute DOI: 10.4150/KPMI.2010.17.1.052 š p x œ w Al jy p sƒ xá a Á Á½x * swœ w œw, a x HYSCO» Microstructure and Mechanical Behavior of Ultrafine Grained Bulk Al

More information

13(1)-04.fm

13(1)-04.fm w CAD/CAM wz 13«1y 2008 2 pp. 27-35» 조선형강디지털가상공장구축및활용 w *, **, ½ ***, kx***, ½ ****, ***** Constructions and Applications of Digital Virtual Factory for Section-steel Shop in Shipbuilding Company Sang

More information

untitled

untitled Chapter 4 Reactions in Aqueous Solution 3 4.1 Pb(NO 3 ) 2 (aq) + 2KI (aq) HCl (aq) + NaOH (aq) Alka-Selter/Water Cu wire/ag(no 3 ) (aq) 3 4.2 (Solution) KMnO 4 (s) K + (aq)+ MnO 4- (aq) 3 4.3 (Molarity)

More information

25(6)-12(조윤아).fm

25(6)-12(조윤아).fm Printed in the Republic of Korea "/"-:5*$"- 4$*&/$& 5&$)/0-0(: Vol. 25, No. 6, 416-420, 2012 http://dx.doi.org/10.5806/ast.2012.25.6.416 Characteristics of heavy metals's exposure from playground flooring

More information

fm

fm w y wz 9«( 1y) 34~40, 2006 J. f the Krean Sciety fr Envirnmental Analysis V/ w y Áy yá váy * w» ( )», *» w y œw Simultaneus Remval f Dixin and Nitrgen Oxide n V/ Catalyst Jun-Yub Lee, Sung-H Hng, Sung-Pill

More information

06.177~184(10-079).fm

06.177~184(10-079).fm Journal of the Korea Concrete Institute Vol. 23, No. 2, pp. 177~184, April, 2011 GGGGG DOI 10.4334/JKCI.2011.23.2.177 x w w MRS w p s y 1) Á z 2) Á x 3) * 1) wû w œw 2) w œw 3) w Nonlinear Analysis for

More information

31(3B)-07(7055).fm

31(3B)-07(7055).fm ª Œª Œ 31ƒ 3B Á 2011 5œ pp. 265 ~ 276 ª w w s³ The Correlation Between the Moving Average of Precipitation and Groundwater Level in Korea Á½û» Yang, Jeong-SeokÁKim, Nam-Ki Abstract Precipitation data and

More information

10(3)-11.fm

10(3)-11.fm w y wz 10«3y 265~271 (2010.12.) Journal of Korean Society of Urban Environment y w w gj p ü e y y y w y Á½k * w m œw Á* w y œw (2010 9 9, 2010 12 7 k) Effect of Chloride Ion Diffusion Coefficient and Critical

More information

62.fm

62.fm Journal of the Korean Ceramic Society Vol. 45, No. 7, pp. 395~400, 2008. Preparation and its Characteristics of Fly Ash-based Geopolymeric Mortar using Low Grade Silica Waste Se Gu Son, Seung Yeob Hong,

More information

16(6)-06(08(77)).fm

16(6)-06(08(77)).fm Journal of Korean Powder Metallurgy Institute DOI: 104150/KPMI2009166416 š / g e w p» p a,b Á y b Áy x a, * a KAIST œw, b ( )» Interfacial Characteristics and Mechanical Properties of HPHT Sintered Diamond/SiC

More information

14(2) 02.fm

14(2) 02.fm J. Korean. Soc. Living. Environ. Sys. Vol. 14, No. 2, pp 117~125(2007) w y y w z sm Ÿ š w œ l ³Á½ * w, **w w w Impact of Photosensor Sensitivity on the Control Performance of a Daylight Dimming System

More information