여성 성장소설에 나타난 사춘기의 성장 담화 - 오정희, 서영은, 김채원의 소설을 중심으로 -

임영복 돈암어문학회 1995 돈암어문학 Vol.- No.7

존재그리기의 미학 - 김채원의 작품을 중심으로 -

임영복 돈암어문학회 1996 돈암어문학 Vol.- No.8

金東里의 「달」에 나타난 원형적 의미

임영복 돈암어문학회 1988 돈암어문학 Vol.- No.1

황산 아연 전해액을 사용한 아연 전착층의 집합조직 및 미세조직 연구

임영복,황선근 대한금속재료학회 1993 대한금속재료학회 학술대회 개요집 Vol.1993 No.1

협동학습을 통한 국어 교육 방안 -협동하여 읽기 모형을 중심으로-

임영복 국어교과교육학회 2003 국어교과교육연구 Vol.6 No.-

암모니아수 흡수제를 사용하는 분무탑의 이산화탄소 포집 기본특성에 관한 실험적 연구

임영복(Youngbok Lim),최문경(Munkyoung Choi),이진원(Jinwon Lee) 대한기계학회 2014 大韓機械學會論文集B Vol.38 No.2

단일 노즐을 이용하는 CO₂ 포집용 분무탑의 기본적 특성을 실험적으로 구하였다. 다양한 조건 - 주입 기체 유량 및 농도, 주입 흡수제 유량 및 농도 등 - 에서 얻어진 포집성능을 포집효율 뿐만 아니라 재생에너지의 주요 결정요인인 CO₂ 포화도 측면에서 검토하였다. 다양한 조건들에서의 포집효율 변화는 흡수제(NH₃)와 CO₂ 의 상대적 유량비만의 단조증가함수로 잘 표현되었다. 포집후의 흡수제의 CO₂ 포화도 또한 NH₃/CO₂ 유량비만의 함수로 잘 정리가 되었으나, 포집효율과는 다르게 단조감소함수를 보였으며, 특히 CO₂ 포화도와 포집효율과의 상관관계를 보면 기존의 모든 연구들에서 포집효율이 증가할수록 CO₂ 포화도가 감소하였다. CO₂ 포화도는 낮은 포집효율 조건에서 최대 20-25% 수준이었으나, 90% 이상의 고효율에서는 10% 미만으로 매우 낮았다. 이는 높은 포집효율을 위해 사용되는 흡수제의 양이 과도하며, 다시 재생에너지가 과도하게 필요함을 의미한다. Experiments were conducted to identify basic characteristics of CO₂ capture using a spray tower with a single nozzle. Results were evaluated in terms of CO₂ saturation which is the main determining factor of regeneration energy, and capture efficiency under various operating conditions. Changes in the capture efficiency under various conditions are well expressed as a monotone increasing function of the relative solvent (NH₃):CO₂ flow rate. Although changes in CO₂ saturation are also well described as a function of the NH₃/CO₂ flow rate ratio, these are expressed as a monotone decreasing function, in contrast with the increasing function of CO₂ efficiency. In recent research on the relationship between CO₂ saturation and capture efficiency, CO₂ saturation was found to decrease when capture efficiency increased. In conclusion, the results show that the amount of solvent used for achieving high capture efficiencies is excessive, as is the amount of regeneration energy needed.

황산 아연 전해액을 사용한 아연 전착층의 집합조직 및 미세조직 조절 연구

황선근,임영복 대한금속재료학회(대한금속학회) 1994 대한금속·재료학회지 Vol.32 No.3

Crystallographic texture and microstructure characteristics of electrogalvanized zinc on carbon steel in zinc sulfate solution was studied in terms of chloride concentration in the electrolyte and the current density. The chloride addition strengthened the basal texture of the electroplated layer by increasing the conductivity of electrolyte and lowering the cathod overvoltage. On the other hand, increasing the current density weakened the basal texture by increasing the cathode overvoltage. Chloride addition also promoted a ridge type surface topographical feature parallel to the substrate surface, and a granular cross-sectional grain size decreased with the chloride content. Increasing the current density resulted in a ridge type structure inclined to the substrate surface and a columnar cross-sectional microstructure. Increased current density also reduced the cross-sectional grain size due to accelerated nucleation rate. Hardness of the electrogalvanized layer increased with the reduced grain size or adsorbed chloride.

Chlorella의 인산화합물 및 유기물함량에 미치는 중금속의 영향

이종삼,임영복 한국미생물학회 1982 미생물학회지 Vol.20 No.1

The effects of heavy metals on the growth rate and phosphate metabolism of Chlorella elliposidea cells were investigated. Chlorella cells were cultured in the media treated with Hg(0.3, 0.7, 0.9 ppm), Cd(1, 5, 15ppm), and Zn(1, 5, 50ppm) for 6days. Aliquots cells were taken out at the inoculation and at intervals during the culture, and measured packed cell vlolume and optical density. The inhibitions of heavy metals on the growth rate and chlorophyll contents were traced. Also after 6 days culture, the amounts of inorganic phosphate and organic compounds of various fractions in Chlorella cells were observed. The turbid effects of heavy metals on the growth rate and chlorphyll contents of Chlorella cells were in order of Hg>Cd>Zn. Because heavy metals depressed the biosynthesis of inorganic polyphosphates and nucleic acids and turn over of inorganic phosphates, the amounts of various phosphate compounds were decreased. The inhibitory effect of photosynthesis by heavy metals resulted in lower contents of carbohydrate. Due to the turbidity of biosynthesis of amino acids by heavy metals, contents of protein were reduced in comparison with those of control. It is suggested conciusively that the minimum concentrations affected by heavy metals on the growth rate and phosphate metabolism of Chlorella cells were 0.7 ppm Hg, 15ppm Cd, 50ppm Zn.

Flavimonas oryzihabitans KU21의 원형질체 생성, 재생 및 융합

이수연,임영복,박용근,이영록 한국미생물학회 1993 미생물학회지 Vol.31 No.4

The optima] conditions for the formation, the regeneration. and the spheroplast fusion of Flavimonas aryz/habitans spheroplasts were investigated. Cells were transformed to spherop]asts effectively by treatment of 0.5% volume (v/v) of 0.] M EDTA and ]00 flg/ml lysozyme at $37^{\circ}C$ for 30 min without shaking. Magnesium chloride and calcium chloride were effective on the stabilization of spheroplasts. and 20 mM calcium chloride in the rich regeneration medium improve the yield of regenerants as much as 3.5-fo]d. Addition of 0.8% bovine serium albumine (BSA) in dilution buffer for spheroplast formation improved the stabilization of spheroplasts over extended periods (4-6 hr) at room temperature. and thus increased the yield of recombinants to 4.5-fold. The spheroplast formation frequency and regeneration frequency of F aryzihabitans strain was 90.10% and 3.800/." respectively. The first regenerated cell of F. aryzihabitans spheroplasts were appeared 6 hours after plating. By I I hours after plating, 80% of spheroplasts were regenerated on thc rich regeneration medium containing 0.5 M sucrose. The intraspeci11c spheroplast fusion of F urvz/habitans was carried out and the properties of obtained fusants were investigated. Formation of fusion products was effective when the Flav/munas spheroplast mixture was treated with 40%(w/v) PEG6000 and 20 mM CaCl, for 10 min at room temperature. and thc formation of frequency of recombinants were $2.0{\times}10^{-5}~3.6{\times}10^{-5}$. All tested recombinant clones were very stable on further propagation. 아닐린 분해균주 Flavimonas oryzihabitans KU21 의 원형질체 생성, 재생, 그리고 융합 등의 최적 조건을 조사하였다. 세포를 37.deg.C 로 prewarming 시킨 0.2 M Tris-Hcl(pH8.0) 완총액으로 현탁시킹후 0.5% 이상 원형질체로 전환되었으며, 이때 효소처리는 37.deg.C 에서 진탕하지 않고 처리했을 때가 가장 효과적이었다. MgCl/sub 2/ 와 CaCl/sub 2/ 수용액은 원형질체의 안정성을 높였고 완층액에 0.8% BSA 를 첨가함으로써 상온에서 4시간 까지 원형질체의 생존력을 80% 까지 유지할 수 있었다. 원형질체의 재생은 overlaying 방법이 가장 효과적이어서 3.8% 의 재생을 보였다. Rich regeneration medium 에 20 mM CaCl/sub 2/ 를 첨가하였을 때 재생율이 약 3.5배 증가하였고 완충액에 0.8% BSA 를 첨가했을 때는 4.5배의 증가율을 나타내었다. 삼투안정제로 0.5 M sucrose 를 첨가한 rich regeneration medium 에서 F. oryzihabitans 의 원형질체는 top plating 하여 6시나 이후부터 재생되기 시작하여 11 시간까지 80% 의 재생이 이루어졌다. 융합원으로 40.deg. PEC6000 과 CaCl/sub 2/ 를 사용하여 F, oryzihabitans 의 종내 원형질체 융합을 유도하였을때 recombinants 의 생성율은 2.0 * 10/sup -5/-3.6 * oryzihabitans 의 종내 원형질체 융합을 유도하였을때 recombinants 의 셍성율은 2.0 * 10/sup -5/-3.6 * 10/sup -5/ 이었으며 recombinants 들은 여러 세대 후에도 분리되지 않고 안정하였다.

디젤기관 착화실패가 크랭크축계 비틀림 진동에 미치는 환경의 이론적 고찰

전효중,임영복 한국마린엔지니어링학회 1986 한국마린엔지니어링학회지 Vol.10 No.3

Since the oil shock of '70s the engine makers have developed new types of diesel engine with low fuel consumption. There is an obvious tendency towards the use of poorer quality fuels, such as the residual oil from chemical processes of refinery. The shaft driving generators is also widely adopted on behalf of the auxiliary diesel engines, which are driving on the expensive diesel oil and have high fuel oil consumption rates, and some mania propulsion diesel engines are equipped with reduction gear systems to get better propulsive efficiency by slower propeller revolutions. The propulsion shafting system equipped with the shaft driving generator or the geared diesel engine shafting system has flexible couplings, and it requires extensive investigations of the torsional vibration and torque fluctuation in order to ensure the acceptable operation range in service. The characteristics of misfiring must be especially examined for the high viscosity fuels to be used. Both torsional vibration and fluctuating torque resulted from misfiring, should be examined for thier effects on the flexible coupling and propulsion shafting system. This paper is to investigate and solve the above mentioned problems which must be predicted on the design-stage of marine propulsion shafting system. A computer program is developed to calculate the indicated diagram, fluctating torque and torsional vibration for both normal and misfiring conditions.