Ortho 붕산의 탈수반응

박소진,이규완,강용,최명재,조수행 한국화학공학회 1992 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.30 No.2

Ortho 붕산의 탈수반응에 의해서 n-파라핀의 액상 산화반응 조절을 위한 에스테르화제로 적합한 meta 붕산을 얻었다. Meta 붕산 생산공정의 설계 및 scale-up을 위한 기초자료를 얻기 위하여 ortho 붕산의 탈수반응특성, 반응조건이 meta 붕산의 생성 전환율에 미치는 영향 등을 고찰하여 meta 붕산 생성의 최적 반응조건을 도출하였다. 붕산입자의 평균입경, 탈수반응온도 및 압력, 붕산슬러리상의 반응입자함유율, 교반속도, 반응시간 등이 실험 변수로 다루어졌으며, ortho 붕산의 탈수 반응을 액체-고체입자반응의 불균일계반응 모델로 해석하였다. 본 연구의 결과 ortho 붕산의 탈수반응은 붕산입자에서의 확산이 반응속도결정 단계로 나타났으며, 경제성을 고려한 반응의 최적조건은 다음과 같이 결정되었다. 반응시간:35-40분, 반응온도: 135-140℃, 교반속도: 700-800 rpm, 슬러리 농도 : 25-28 wt%, 붕산입자크기 ; 0.20-0.35 ㎜, 반응압력 : 700-720 ㎜Hg. Meta boric acid which can be used in the esterification for the control of liquid oxidation of n-paraffin was obtained by dehydration of ortho boric acid. The characteristics of dehydration or ortho boric acid and effects of the experimental variables on the conversion of ortho boric acid to meta boric acid were examined in order to obtain the basic data which are required for the design and scale-up of process producing meta boric acid. Particle size, reaction temperature and pressure, particle content in the slurry phase, mixing speed and reaction time were chosen as operating variables, and the reaction was analyzed in terms of a heterogeneous liquid-solid reaction model. From the results of this study, the diffusion in the particle was presumed as the rate determining step, and the optimum conditions for this reaction were determined as follow in view of economics: t(reaction time):35-40 min, T(reaction temperature):135-140℃, R(mixing speed): 700-800 rpm, S(slurry content): 25-28 wt%, d_p(particle size: 0.20-0.35 ㎜, P(reaction pressure): 700-720 ㎜Hg.

Alcohol(C1 - C4)+ TEOS 혼합계의 등온 기액평형에 관한 연구

박소진,노재성,오종혁,도미선 한국화학공학회 1995 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.33 No.4

Alcohol(C₁-C₄)+TEOS 혼합계의 60℃등은 기액평형을 정적 측정방법의 일환인 head space gas chromatography(H.S.G.C) 방법을 이용하여 측정해 보았다. 측정한 모든 기액평형 데이터는 공비점을 갖지 않았고, Raoult의 법칙으로부터 양의 편차를 보였다. 이 때 양의 편차는 alcohol의 탄소수가 증가할수록 감소하는 경향을 보였다. 기액평형 데이터는 일반적인 g^E 모델식에 합치시켜 보았고 이 때의 편차는 1% 미만이었다. Isothermal vapor-liquid equilibrium(VLE) data were measured at 60℃ by means of the head space gas chromatography(H.S.G.C) method, one of the static methods, for alcohol(C₁C₄)+TEOS mixtures. All the experimental vapor-liquid equilibrium(VLE) data had no azeotropes and showed positive deviation from the Raoult's law. The positive deviations decreased with the increase of the chain length of alcohols. VLE data were correlated with conventional g^E models and deviations were found less than 1%.

What/Who is Sleeping? Sexual Violence against Adolescent Girls and Revenge in Contemporary Film Versions of “Sleeping Beauty”

박소진 숙명여자대학교 아시아여성연구원 2016 Asian Women Vol.32 No.4

This paper discusses sexual violence against adolescent girls and their revenge on rapists in Arang (Ahn, 2006) and Maleficent (Stromberg, 2014) in comparison with traditional versions of “Sleeping Beauty.” In the traditional Sleeping Beauty legend, the sexuality of an adolescent girl (a princess) is controlled from her birth on the pretext of protecting her, and the sexual violence against her is linked to a paradoxical construction of adolescent girls’ sexuality: they must be innocent yet sexual, and their sexuality needs to be shown but must remain inactive. These contrasting concepts are also found in two contemporary films. Arang (Ahn, 2006) is a Korean film based on the 400-year-old Arang legend, and Maleficent (Stromberg, 2014) is a popular retelling of the 1959 Disney film Sleeping Beauty. While the “sleep” of adolescent girls is a central motif, both films deal with sexual violence against the female protagonists, who both subsequently take revenge on their rapists. Through this revenge, buried truths about violence and human greed are revealed, and the guilty take responsibility for their crimes. Meanwhile, the two films emphasize solidarity and support between the female characters as they heal from their traumatic experiences. Arang (Ahn, 2006) in particular criticizes the malfunctioning social justice system in Korea, advocates for social efforts to listen to the abused, and shows how sexual violence damages a girl’s whole being.

한국 사회 문화 재인식과 세계 속 자기 정체성 찾기: 대학생 단기 해외연수 동기와 경험

박소진 국제비교한국학회 2010 비교한국학 Comparative Korean Studies Vol.18 No.1

다양성추구행동에 미치는 영향 : 조절효과

박소진 한국전략마케팅학회 2014 마케팅논집 Vol.22 No.1

본 연구는 미래에 소비할 다수의 품목을 동시에 선택하는 상황에서 소비자의 조절초점 성향(향상 vs. 방어)과 옵션매력성(높음 vs. 낮음)이 다양성 추구 행동에 미치는 영향을 검증하였다. 본 연구 결과 방어초점 성향의 소비자들이 향상초점 성향의 소비자들보다 다양성 추구 행동 성 향이 더 높게 나타났으며, 옵션매력성의 조절효과를 발견하였다. 옵션매력성이 높은 조건에서는 향상초점 보다 방어초점 성향의 소비자가 다양성 추구 행동 성향이 더 높았으나, 옵션매력성이 낮은 조건에서는 조절초점에 따라 다양성 추구 행동 성향에 유의한 차이가 없었다. 본 연구는 각기 다른 영역에서 연구되었던 소비자의 조절초점 성향과 다양성 추구 행동의 관계 를 탐구하였다는 점에서 연구의 의의가 있으며, 유통업체의 골라담기 판촉과 관련하여 실무적 시 사점을 제공한다. 본 연구는 방어초점의 소비자가 향상초점의 소비자보다 다양성 추구 행동 성향 이 높으므로 방어초점 소비자들에게 소구할 수 있는 광고 문안을 제시할 것을 제안하고 있다. 또 한 소매상이 제공하는 제품구색의 매력성 수준에 따라서 골라담기 판촉의 구매요구량의 크기(번 들의 크기)를 달리 해야 함을 시사한다. This research investigated the effects of goal orientation(promotion focus vs. prevention focus) and option attractiveness on consumers' variety-seeking behavior. This study predicts prevention-focused consumers tend to select a greater variety of items than promotion-focused consumers. This study also expects the interaction effect of goal orientation and option attractiveness. As predicted, prevention-focused consumers showed a higher extent of variety-seeking than promotion-focused consumers in simultaneous choice condition. The interaction effect of goal orientation and option attractiveness was also found. When the option attractiveness was high, prevention-focused consumers exhibited a higher extent of variety-seeking than promotion-focused consumers. However, when the option attractiveness was low, there was no significant difference between prevention-focused and promotion-focused consumers in variety-seeking behavior. Variety-seeking behavior and regulatory focus have drawn much attention in the domain of consumer psychology independently. This research will be contributed to fill the gap between variety-seeking behavior and regulatory focus. Finally, this research suggests managerial implication for bundle promotions related to option attractiveness and variety-seeking behavior.

고액 상평형의 측정과 추산 연구

박소진,박영신,황태원,한규진,오종혁,원동복 忠南大學校 産業技術硏究所 2001 산업기술연구논문집 Vol.16 No.2

정적인 융점측정 방법으로 benzene+n-dodecane, cyclohexane+phenol, phenol+water, water+sulfolane 및 diethylcarbonate+nitrobenzene계에 대한 고액 평형을 측정하였다. 측정된 고액평형 데이터는 문헌값과 modified UNIFAC에 의해 예측된 값과 비교하였으며, 추산값과 실험값은 ±1.61K 범위에서 잘 일치하였다. 본 연구에서 고찰된 diethylcarbonate의 융점은 기존문헌치와 큰 편차를 보여 재검증이 필요하다. Solid-liquid equilibrium(SLE) data were measured for benzene+ n-dodecane, cyclohexane+phenol phenol+water, water+sulfolane, and diethylcarbonate+ nitrobenzene systems by using static melting point measuring method. Measured SLE data were compared with the literature values and also compared with the values predicted by modified UNIFAC(Dortmund) equation. The experimental results are in good agreements with the published and estimated values, and the average deviation between the experimental values and the calculated values is ±1.16K. The measured melting point of diethylcarbonate shows some difference from literature value, and it will be certified through other experimental data for different systems.

Volumetric and optical studies of binary and ternary mixture of diisopropyl ether, benzene and hexane

박소진,( Manju Rani ),( Rekha Devi ),( Sanjeev Markin ) 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0

Experimentally measured data of various thermophysical properties of possible mixtures containing oxygenates and components of gasoline such as alkanes, aromatics over a wide temperature range, is very helpful for formulation of environmental friendly fuel, petrochemical additives. In this work, Density and refractive indices of the binary and ternary liquid mixtures of diisopropyl ether, benzene and n-hexane were experimentally measured from 298.15 K to 318.15 K over the entire composition range. Excess molar volume and deviation in refractive index of binary and ternary mixtures were fitted to the Redlich-Kister equation and the Singh equation respectively. The excess volume data of binary and ternary mixtures have also been interpreted using Prigogine-Flory-Patterson theory. Various mixing rules were used for theoretical determination of refractive indices of the binary and ternary mixtures. Temperature effects were also studied in terms of molecular interactions.

Static Method를 이용한 DMF, NMF 및 Diethyl Carbonate 포함계의 고액평형 측정

박소진,황태원 한국화학공학회 2003 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.41 No.4

융점 측정 장치로 자체 제작한 glass still을 이용하여 정적인 방법으로 dodecane+cyclohexanol, 1-dodecanol+N, N-dimethyl-formamide(DMF), p-xylene+DMF, 1-dodecanol+N-methylformamide(NMF), NMF+1-octanol, aceticacid+diethyl carbonate 및 hexadecane+diethyl carbonate 계에 대한 고액평형 (SLE)을 측정하였다. 측정된 고액평형 데이터는 NRTL식에 의해 계산된 값과 비교하여 보았으며, diethyl carbonate 융점의 문헌상 오류를 확인하였다. Solid-Liquid Equilibrium(SLE) data were measured by the static method for the systems of dodecane+cyclohexanol, 1-dodecanol+N,N-dimethylformamide(DMF), p-xylene+DMF, 1-dodecanol+N-methylformamide(NMF), NMF+1-octanol, acetic acid+diethyl carbonate and hexadecane+diethyl carbonate with the self made melting point measuring apparatus. The measured SLE data were correlated with the NRTL equation, and we found that the literature value of melting point for diethyl carbonate is not correct.

Educational Manager Mothers: South Korea’s Neoliberal Transformation

박소진 한국학중앙연구원 한국학중앙연구원 2007 Korea Journal Vol.47 No.3

This article analyzes the emerging image of educational managermothers in the context of South Koreas neoliberal transformation,including educational reforms and the rapid expansion of the privateafter-school market. Although maternal support for childrens educa-tion is not entirely new in South Korea, the escalating private after-school market demands much more of mothers than formal schoolingever did. By critically scrutinizing the continuity and discontinuity ofthis emerging maternal image between the old and new rhetoric, thisarticle examines the newly intensified maternal roles for childrens edu-cation. In particular, by analyzing the media discourse, this articleexplores new aspects of this maternal subjectivity, which is closelyintertwined with South Koreas neoliberal transformations and its callsfor newly creative and competitive citizens. While resonating with theold ambivalent tone and centering on the experiences of middle-classfull-time mothers, this discourse reconstructs educational managermothers as necessary figures for childrens educational success. Thismaternal discourse thus enjoins diverse women to become managermothers, by obscuring the classed aspect of this image and emphasiz-ing the specific ability (neungnyeok) or nature (jajil)of mothers formanaging their childrens education.

298.15K 에서의 Cyclohexane - alcohol 계의 과잉 몰 부피

박소진,오종혁 한국화학공학회 1994 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.32 No.5

액상 혼합물의 용액거동은 혼합물 구성분자들 사이의 인력에 의존하며, 혼합시의 과잉 몰부피(V^E)는 따라서 각 구성 성분간의 상호관계를 이해하는데 뿐만 아니라 열역학적 설계에도 중요한 의미를 지닌다. 본 실험에서는 25℃ 등온 하에서 cyclohexane-alcohol(C₁-C₄) 혼합계의 과잉 몰부피를 digital vibrating tube densimeter를 이용하여 측정하였다. 본 실험에서 측정한 모든 cyclohexane-alcohol 혼합계의 과잉 몰부피값은 모두 이상용액으로부터 양의 편차를 보였으며, cyclohexane-methanol 혼합계에서는 불용영역을 나타내었다. 실험으로 얻은 데이타는 6개의 매개변수를 사용한 Redlich-Kister 다항식을 이용하여 합치시켜 보았으며, 실험값과의 평균편차 (S_d)는 약 0.009 ㎤/㏖ 미만이었다. Solution behavior of liquid mixtures are depend on the interactions of constituent molecules in solution, excess molar volume(V^E) is therefore very important in the thermodynamic design as well as understanding the relation between constituent components. In this work, excess molar volumes have been measured for binary mixtures of cyclohexane-alcohol(C₁-C₄) at 298.15 K by using digital vibrating tube densimeter. Excess molar volume values show positive deviation from the ideality in all the measured cyclohexane-alcohol systems and especially cyclohexane-methanol mixture has immiscible region. Experimental data were fitted with 6 parameter Redlich-Kister equation, and their standard deviations(S_d), from the experimental data were less than 0.009 ㎤/㏖.