자동차(自動車) 폐촉매(廢觸媒)의 침출액(浸出液)으로부터 백금족(白金族) 금속(金屬)의 용매추출(溶媒抽出)

김미애,이재천,김치권,김민석,김병수,유경권,Kim, Mi-Ae,Lee, Jae-Chun,Kim, Chi-Kwon,Kim, Min-Seuk,Kim, Byung-Su,Yoo, Kyoung-Keun 한국자원리싸이클링학회 2006 資源 리싸이클링 Vol.15 No.5

자동차 폐촉매의 침출액으로부터 백금족 금속의 분리를 위하여 용매추출에 대한 기초연구가 수행되었다. 추출제로 tri-n-butyl phosphate (TBP), tri-n-octylamine (TOA) 그리고 di-n-hexyl sulfide (DHS)를 등유에 희석하여 사용하였다. 추출제의 종류 및 농도가 백금, 팔라듐 그리고 로듐의 추출거동에 미치는 영향을 조사하였다. 또한 세륨, 납, 철, 마그네슘 그리고 알루미늄 등 침출액에 존재하는 주요 금속불순물의 추출거동도 함께 조사하였다. TBP는 백금과 팔라듐, 그리고 TOA는 백금, 팔라듐, 로듐을 동시에 추출하였다. DHS 추출제인 SFI-6에 의한 용매추출 시 백금이 팔라듐과 함께 유기상으로 추출되었으나, SFI-6R은 팔라듐만 선택적으로 추출하였다. SFI-6R은 SFI-6에 비하여 팔라듐에 대한 선택성이 우수하였으나 추출속도가 느렸다. 추출제의 종류에 따라 백금족 금속과 함께 추출되는 금속불순물들이 달라지며 세정 또는 탈거공정에서 이들을 제거하여야 한다. 자동차 폐촉매의 침출액으로부터 백금, 팔라듐 그리고 로듐을 분리하기 위하여 먼저 DHS 추출제인 SFI-6R를 사용하여 팔라듐을 분리한 다음 TBP 또는 TOA으로 백금을 추출하여 로듐과 분리하는 공정이 적절한 것으로 나타났다. The solvent extraction for the separation of platinum group metals from the leach liquor of spent automotive catalysts has been studied. Tri-n-butyl phosphate (TBP), tri-n-octylamine (TOA) and di-n-hexyl sulfide (DHS) were used as extractants and kerosene as a diluent. The extraction behavior of platinum, palladium and rhodium has been investigated as functions of different kinds of extractants and their concentrations. In addition, the extraction behavior of the major metal impurities such as cerium, lead, iron, magnesium and aluminum has been investigated. Platinum and palladium were extracted with TBP. And platinum, palladium and rhodium were extracted with TOA. Platinum was co-extracted with palladium into the organic phase by solvent extraction using SFI-6 of DHS extractant, but only palladium was selectively extracted with SFI-6R. The selective extraction of palladium with SFI-6R was found better than that with SFI-6, but the kinetics of extraction with SFI-6R was found poor in comparison to SFI-6. The metal impurities extracted simultaneously during the extraction of platinum group metals should be removed in scrubbing and stripping processes. A suitable process has been proposed for the separation of platinum group metals from the leach liquor of spent automotive catalysts. Initially palladium was extracted with SFI-6R, followed by the separation of platinum with TBP or TOA leaving rhodium in the raffinate.

"신성장동력" 창출을 위한 시스템반도체산업 발전전략

김미애,Kim, Mi-Ae IT-SOC협회 2008 IT SOC magazine Vol.26 No.-

2단계 BcN 구축 추진전략

김미애,Kim, Mi-Ae 한국정보통신기술협회 2007 TTA저널 Vol.109 No.-

다시한번 더 박차를 가합시다

김미애,Kim, Mi-Ae 한국산업간호협회 2006 한국산업간호협회지 Vol.13 No.2

한국땅거미 ( Atypus coreanus Kim. 1985 ) 전대그물의 화학적 정량분석

김주필,이영보,장승종,김미애 ( Joo Pil Kim,Young Bo Lee,Seong Jong Jang,Mi Ae Kim ) 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.1

Spiders are easily distinguished from all other creatures by behavior of making webs. Among the web building spiders which depend largely on their webs to predation, Atypidae, four species in Korea, uses the purse web which is the most primitive one than other spider`s web in Korea. To analyze the chemical properties of the purse web, 30 ㎎ of Atypus coreanus` web was collected in Joan-myun, Namyangjoo-city, Kyunggi-do. As a result, the purse web of Atypus coreanus mostly consists of Glycine (5.3%), Glutamic acid (8. 26%) and Alanine (14. 17%). Especially the web of Atypus coreanus has more proportion of serine (9.28%), which plays an important role in intricacy, than that of orb webs used by Nephila clavata(4.84%) and Araneus ventricosus(4.84%).

연령에 따른 시지각과 시각-운동통합 능력의 변화

김미애(Kim, Mi-Ae),박용경(Park, Yong-Kyung),김은휘(Kim, Eunhwi),김미한(Kim, Mi Han),정성화(Jung, Sung-Hwa),서순림(Shu, Soon-Rim),김홍(Kim, Hong) 한국노년학회 2013 한국노년학 Vol.33 No.1

본 연구는 인지기능에 영향을 미칠 것으로 생각되는 성별, 질병유무, 운동유무, 그리고 연령에 따라 시지각과 시각-운동통합 능력이 어떻게 변화되는지를 조사하고 그 결과를 바탕으로 일반 성인의 시지각과 시각-운동통합 능력에 영향을 미치는 주요 요인을 규명하고자 시행되었다. 연구 대상자는 대구ㆍ경북에 거주하고 일상생활과 의사소통이 가능하며, 인지기능 장애가 없는 건강한 20-70대의 남녀 성인 137명으로 하였다. 시지각과 시각-운동통합 능력을 평가하기 위한 측정도구는 각각 MVPT-V, VMI-3R을 사용하였다. 연구결과 시지각 능력에는 성별(β=-.170, P=.012)과 연령이(β=-.614, P<.001), 시각-운동통합 능력에는 연령(β=-539, P<.001)이 가장 큰 영향을 주는 요인이었고, 특히 시각-운동통합 능력이 시지각 능력보다 연령에 더 크게 감소하는 것으로 나타났다(Wald's χ²=16.03, P<.001). 이러한 연구결과는 노화에 따른 인지기능의 감소가 시지각과 시각-운동통합 능력의 감소와 매우 밀접한 관련이 있으며, 따라서 노화에 따른 인지기능의 감소를 적절하게 예방하기 위해서는 연령에 따라 크게 감소하는 시각-운동통합 능력에 대한 적절한 평가와 효과적인 측정도구의 개발이 필요할 것으로 생각된다. The aim of this study was to investigate the change of visual perception (VP) and visual-motor integration (VMI) depending on various factors. The survey was conducted by 152 subjects (aged 20 to 70 years old; both gender, n=10 in each ages) living in Dague and Gyeongbuk district and 137 proper data were collected. Data were collected through interview-based questionnaires which were constructed to include the Motor Free Visual Perception Test-Vertical Format (MVPT-V) and the Visual-motor integration 3rd Revision (VMI-3R). Collected data were analyzed by frequency, t-test, one-way ANOVA, correlation, and regression analysis and most results were expressed the mean ± standard deviation (SD) or percentage (%). As a results, the main factors were gender and age on VP and age on VMI. Particularly, VMI is more affected by age than VP. In conclusion, this study suggests that the regular evaluation of VMI is very important to protect cognitive deficit by aging process effectively.

『오델로』와 부권사회의 여성성의 희생

김미애(Mi-Ae Kim) 한국셰익스피어학회 2004 셰익스피어 비평 Vol.40 No.2

The patriarchal society is based upon the gender difference. In the patriarchal social system the female is contained by the male. Hence the female is supposed to be either silence itself or a macho woman placing herself in a man's position. Whereas the male is always in the fear of castration and gets more aggressive to assert his manhood. Since gender was a significant way of representing social relations in early modern England, it was natural that contemporary playwrights dramatized unstable gender relations and explored assumptions about women in their plays. The Shakespeare tragic heroine figure stands for an independent adult woman who does not conform to the male idea of proper female behavior. Desdemona is the woman of actions rather than the woman of patient endurance, as is commonly assured her to be. Her miscegenation implies that she ignores the social conventions though it leads to her death. Desdemona frees herself from the confirming feminine identity of docile lover, dependent daughter, and servile wife and shows the developing processes of her true self-fashioning. However her final death, or the "sacrifice of love" implies the limit of her defiance against the Venetian patriarchal society.

부권주의와 허구적 여성상

김미애(Mi-Ae Kim) 한국셰익스피어학회 2002 셰익스피어 비평 Vol.38 No.1

The patriarchal society is based upon the gender/ sex difference. In the patriarchal social system the female is contained by the male. Hence the female is supposed to be either silence itself or a macho woman placing herself in a man's position. Whereas the male is always in the fear of castration and gets more aggressive to assert his manhood. Since gender was a significant way of representing social relations in early modem England, it was natural that contemporary playwrights dramatized unstable gender relations and explored assumptions about women in their plays. The 'witch' stands for an independent adult woman who does not conform to the male idea of proper female behavior. Lady Macbeth is very assertive and has the power of words. In Shakespeare's tragedies of the patriarchal families the women pendulate between the two extremities of a home angel and a weird, ruling out the middle. The Weird Sisters in Macbeth is the long shadow of Lady Macbeth. Lady Macbeth is defeated by the fantasy of manhood in spite of herself The manly womanhood of Lady Macbeth cannot get over the barrier of her patriarchal society.

광고 정보원으로서의 노년층에 대한 평가

김미애 ( Kim Mi Ae ) 한국지역언론학연합회 2002 언론과학연구 Vol.2 No.3

가압단조 방법에 의한 알루미늄 반응고 성형해석에 관한 연구

김미애(Mi-Ae Kim),차용훈(Young-Hun Cha),성백섭(Back-Sub Sung),김정대(Jung-Dae Kim),장훈(Hoon Jang),홍지민(Ji-Min Hong) 한국생산제조학회 2006 한국공작기계학회 춘계학술대회논문집 Vol.2006 No.-

In a recent trend where an industry is highly advanced and an environment preservation is emphasized, They also perform various researches on improving production process and developing new systems. In the pressing forging process among the semi-solid casting process, heated aluminum alloy turns into a semisolid state mixed with solid and fluid around at the fusion point. The solid is achieve in dendrite which remains in a fine solid state of globular shape stuck together. If it is placed in the mold, it maintains its shape independently like the solid. If it is pressed, it comes to have the state similar to the fluid and consequently is easily cast in the metal mold. It also aims to estimate the exact casting state of product through Super forge 2005, a program to interpret finite factors in order to perform forge die casting of plate in the middle of valve body in the car automatic transmission. Furthermore, it assesses the change of the distribution and transformation ratio.