여행계약에 관한 연구

임정엽 전주대학교 비교법학연구소 2003 비교법학 Vol.3 No.-

1P-162 The effect of side chain length of amphiphilic block-graft copolymer as template on structure of organized mesoporous TiO₂ films

임정엽,김진규,김정훈,김종학 한국공업화학회 2017 한국공업화학회 연구논문 초록집 Vol.2017 No.1

In here, amphiphilic block-graft copolymer SBS-g-POEM was synthesized via free radical polymerization which is composed of poly(styreneb-butadiene-b-styrene) (SBS) backbone and poly(oxyethylene methacrylate) (POEM) side chains. The SBS-g-POEM was dissolved in solvent and mixed with hydrophilic preformed TiO₂ (Pre-TiO₂) which has preferential interaction with POEM of SBS-g-POEM. For the micro-phase separation property of amphiphilic copolymer, the SBS-g-POEM was self-assembled as well as Pre-TiO₂. For understanding the effect of side chain of polymer on TiO₂ structure, SBS-g-POEM with different numbers of ethylene oxide repeating units (different Mw as 500, 950) were used to make organized mesoporous TiO₂ films (Om-TiO₂). The efficiencies of dye-sensitized solar cells with using Om-TiO₂ (500, 950) was 5.7% and 5.8% at 100 mW/㎠, respectively, which was much higher than one (4.8%) with commercial TiO₂.

지정토론문

임정엽(Lim Joung-Youb) 한국법학원 2011 저스티스 Vol.- No.122

Correlation between facilitated olefin transport and silver concentration in polymer/silver salt membranes

김상진,임정엽,지원석,허성연,김종학 한국공업화학회 2013 한국공업화학회 연구논문 초록집 Vol.2013 No.1

다공성 나노구조체를 이용한 이산화탄소 분리용 혼합기질막 제조

노동규,임정엽,김종학 한국막학회 2017 한국막학회 총회 및 학술발표회 Vol.2017 No.11

The gas separation through membrane is considered as a promising solution for the stabilization of greenhouse gas level of atmosphere attributed from CO2. The separation process of membrane allows low energy requirement, low cost, and ease of operation. However, conventional polymeric membranes generally suffer from the trade-off between permeability and selectivity, which remains as one of the most important challenges for commercialization. Mixed matrix membranes (MMMs), consisting of a polymer matrix and porous nano-filler, are considered to be a promising solution to overcome the trade-offs in polymeric membranes. Herein the porous nano-structures were fabricated to enhance the permselectity of CO2 separation membranes. The MMM which were fabricated with prepared porous nano-filler showed permeability improvement without significant selectivity loss.

고성능 기체 분리를 위한 이산화탄소 친화적 이중상의 고분자막의 제조

이창수,김진규,임정엽,이재훈,김종학 한국막학회 2018 한국막학회 총회 및 학술발표회 Vol.2018 No.05

We fabricated dual-phase free-standing polymeric membrane for high performance CO2/N2 separation, introducing amphiphilic, CO2-philic copolymer via one-step free radical polymerization, or (2-[3-(2H-benzotriazol-2-yl)-4-hydroxyphenyl]ethyl methacrylate)-graft-poly(oxyethylene methacrylate) (PBE). PBE filler partially interacts with Pebax polymer matrix to generate the interconnected CO2 philic network, exhibiting a microphase-separated, or dual-phase behavior in Pebax matrix. The performance of CO2/N2 separation was increased according to the PBE content, with the maximum selectivity at 5 wt%. The enhancement of Pebax/PBE CO2-philic membrane was attributed to the formation of CO2-philic channel consisting of ether oxygens and triazole groups. The best performance was CO2 permeability of 175.3 Barrer and CO2/N2 selectivity of 48.2.

PEMA-g-PPG 가지형 공중합체의 합성 및 에너지 절약 가스 분리의 응용

이창수,정정표,임정엽,김종학 한국막학회 2017 한국막학회 총회 및 학술발표회 Vol.2017 No.11

We present a facile, room temperature synthesis of poly(ethylenealt- maleic anhydride)-graft-poly(propylene glycol) (PEMA-g-PPG) graft copolymer-based CO2/N2 gas separation membrane with 100% conversion reaction without any further purification process. As confirmed by the Fourier transform infrared (FT-IR) and nuclear magnetic resonance (1H NMR) spectroscopy, the PEMA-g-PPG was successfully synthesized with 100% conversion of PEMA and PPG monomers. It was confirmed that the PEMA-g-PPG was amorphous and rubbery state according to the X-ray diffraction (XRD) and differential scanning calorimetry (DSC0 results. Therefore, PEMA-g-PPG/polysufulfone composite membrane exhibited high performance of CO2 permeability (99.1 Barrer) and selectivity (82.6 for CO2/N2 and 26.8 for CO2/CH4), surpassing conventional PEBAX block copolymer membrane.

개정형법상 유기징역형의 상한조정에 관한 고찰

이인석(Lee, In-Seok),임정엽(Lim, Joung-Youb) 한국형사법학회 2010 刑事法硏究 Vol.22 No.3

It seems hard to avoid a criticism that the National Assembly made a rash decision of passing the amendment of criminal law in April 15, 2010. The law includes provisions about increasing the period of mandatory maximum prison term. It could cause problems that the National Assembly didn't have appropriate opinion surveying processes, such as hearings, and provide chances to scholars in delivering their thoughts regarding related issues when amending one of the basic laws in our society - the criminal law. Without sufficient discussions and reviews, passing the law based on the temporary trends in public opinion might easily gain political supports. However, the law of a preventive measure to deter crime raises questions about its real effect. Furthermore, it could distract our attention from improving our security system in the society to just punishing severely to the defendant. Sentencing practices following amending the criminal law should always consider the purpose of the amendment and also needs to take opinions from various strata of the society in operating the new rules. It is necessary that the law should bridge the gap between previous imprisonment punishment and life in prison punishment, but not lead to just increase in the period of sentence as a whole without considering situations. Rather it would be better to emphasize the function of the sentencing proceedings by promoting participation of commissioners, court sentencing researchers, probation officers and gathering opinions from them. Furthermore, the correctional system needs to be operated focusing on rehabilitation rather than punishing convicted criminals. The rehabilitation system should have a greater impact on reducing recidivism rates. Thus, to reduce recidivism rates, it is necessary to establish reasonable, strict and transparent parole standards. In order to put the correctional system under the judicial control, like European countries, we need to consider adopting correctional judges.

이산화탄소 분리막을 위한 양친성 PEGBEM-g-POEM 공중합체

이재훈,박철훈,김상진,임정엽,김종학 한국막학회 2015 한국막학회 총회 및 학술발표회 Vol.2015 No.11

Amphiphilic comb copolymers composed of poly(ethylene glycol) behenyl ether methacrylate (PEGBEM) and poly(oxyethylene methacrylate) (POEM) were synthesized via facile free radical polymerization. The structure of PEGBEM-g-POEM comb copolymer was confirmed by fourier transform infrared spectroscopy (FT-IR) spectroscopy, gel permeation chromatography (GPC) and nuclear magnetic resonance (1H NMR). Due to great solubility in ethanol, the PEGBEM-g-POEM comb copolymer could be directly coated onto the polysulfone supporting layer to prepare composite membranes. The maximum CO2/N2 selectivity of the PEGBEM-g-POEM membrane reached 84.7 together with a high CO2 permeance of 21.9 GPU (1 GPU = 10-6cm³(STP) / (s×cm²×cmHg).

아프리카TV 프로야구 편파중계 방송에서 나오는 선수 등장곡이 시청자의 태도에 미치는 영향

김종무 ( Kim Jong-moo ),임정엽 ( Jeong-yeop ) 커뮤니케이션디자인학회(구 시각디자인학회) 2019 커뮤니케이션 디자인학연구 Vol.66 No.-

본 연구는 아프리카TV 프로야구 편파중계 방송에서 나오는 선수 등장곡이 시청자의 팀충성도, 팀동일시, 시청몰입과 시청만족에 어떠한 영향을 주는지를 분석하였다. 이를 위해 실제 아프리카TV 프로야구 편파중계 방송을 시청하는 총 384명의 설문을 분석하였다. 분석 결과 첫째, 선수 등장곡은 팀충성도, 팀동일시, 시청몰입에 정(+)의 영향을 주는 것으로 나타나 선수 등장곡은 시청자의 태도에 영향을 주는 요인임을 확인 하였다. 둘째, 팀충성도는 시청몰입과 시청만족에 유의한 영향을 주지 않은 결과와 셋째, 팀동일시는 시청몰입에 정(+)의 영향을 주었으나 시청만족에는 유의한 영향을 주지 않은 결과는 기존의 선행 연구와 반대의 결과를 보였다. 그러나 넷째, 시청몰입은 시청만족에 정(+)의 영향을 주었다. 본 연구는 인터넷 개인 방송 플랫폼인 아프리카TV에서 BJ가 진행하는 프로야구편파 방송 시청자의 태도가 어떠한지를 분석함에 의미가 있으며, 추후 본 연구가 아프리카TV에서 프로야구편파 방송을 진행하는 BJ들에게 시청자의 태도를 이해하는 자료가 될 것이다. This study analyzed what influence the appearance music for players in biased pro baseball relay broadcast of Afreeca TV has on viewers' team loyalty, team identification, immersion in viewing and satisfaction in viewing. To his end, questions distributed to 384 persons who actually viewed biased pro baseball relay broadcast of Afreeca TV were analyzed. First, analysis showed that appearance music for players had positive(+) influence on team loyalty, team identification, immersion in viewing, confirming that appearance music for players is the factor which influences viewers' attitude. Second, team loyalty had no significant influence on immersion in viewing and satisfaction in viewing. Third, while team identification had positive(+) influence on immersion in viewing, it did not have on satisfaction in viewing, which was opposite to the result of preceding study. Fourth, immersion in viewing had positive(+) influence on satisfaction in viewing, however. This study is meaningful in that it analyzed what attitude the viewers of biased broadcast of pro baseball managed by BJ in Afreeca TV, the Internet personal broadcast platform had. This study will be materials with which BJs managing biased pro baseball broadcast in AfreecaTV understand viewers' attitude.