Effects of slightly acidic electrolyzed water ice and grapefruit seed extract ice on shelf life of brown sole (Pleuronectes herzensteini)

Jung, Sun,Ko, Bong Soo,Jang, Hye-Jin,Park, Hee Jung,Oh, Se-Wook 한국식품과학회 2018 Food Science and Biotechnology Vol.27 No.1

The effects of slightly acidic electrolyzed water ice (SAEW-ice) and grapefruit seed extract ice (GSE-ice) on changes in brown sole quality during storage were determined using microbial, chemical, and sensory analyses to prolong the shelf life of brown sole. Microbiological analyses showed that GSE-ice storage was more effective for inhibiting the growth of total plate count, Pseudomonas, and $H_2S$-producing bacteria than SAEW-ice storage. Chemical indexes of brown sole showed that SAEW-ice and GSE-ice storage extended the shelf life of fish compared with TW-ice. Sensory scores following GSE-ice storage were higher than those following storage under the other conditions. Taken together, the present study indicated that the quality of brown sole was maintained for 9-10 days in TW-ice, and 11-12 days in SAEW-ice and 12-13 days in GSE-ice. Therefore, ice storage using SAEW-ice and GSE-ice effectively extended the shelf life of brown sole.

Direct Solvothermal Synthesis of B/N‐Doped Graphene

Jung, Sun‐,Min,Lee, Eun Kwang,Choi, Min,Shin, Dongbin,Jeon, In‐,Yup,Seo, Jeong‐,Min,Jeong, Hu Young,Park, Noejung,Oh, Joon Hak,Baek, Jong‐,Beom WILEY‐VCH Verlag 2014 Angewandte Chemie Vol.126 No.9

<P><B>Abstract</B></P><P>Heteroatom‐doping into graphitic networks has been utilized for opening the band gap of graphene. However, boron‐doping into the graphitic framework is extremely limited, whereas nitrogen‐doping is relatively feasible. Herein, boron/nitrogen co‐doped graphene (BCN‐graphene) is directly synthesized from the reaction of CCl<SUB>4</SUB>, BBr<SUB>3</SUB>, and N<SUB>2</SUB> in the presence of potassium. The resultant BCN‐graphene has boron and nitrogen contents of 2.38 and 2.66 atom %, respectively, and displays good dispersion stability in <I>N</I>‐methyl‐2‐pyrrolidone, allowing for solution casting fabrication of a field‐effect transistor. The device displays an on/off ratio of 10.7 with an optical band gap of 3.3 eV. Considering the scalability of the production method and the benefits of solution processability, BCN‐graphene has high potential for many practical applications.</P>

반공국가의 폭력과 ‘좌익작가’의 전향

박정선 ( Park¸ Jung-sun ) 현대문학이론학회 2020 現代文學理論硏究 Vol.0 No.83

이 논문은 남한 단독정부 수립 후 전향제도의 작동 원리와 방식, ‘좌익작가’의 전향 과정과 전향 후 행적, 전향 후의 내면을 살펴보는 데 목적이 있다. 단정 수립 후 반공권력은 반공주의, 공안기구, 국가보안법, 국민보도연맹을 수단으로 좌익의 전향을 유도하고 전향자를 관리했다. 이때 전향은 사상과 소속의 변화라는 의미로 통용됐다. 반공권력은 좌익으로 지목된 단체에 가입한 사실만으로도 좌익으로 규정했다. 그리고 온정과 엄벌을 기조로 한 전향정책을 추진했다. 조선문학가동맹에 가입했던 작가들 중에서 월북도 입산투쟁도 할 수 없었던 작가들, 대표적으로 정지용, 김기림 같은 작가들이 이런 폭력적 상황에서 엄벌을 피해 보도연맹에 가입하고 전향자가 됐다. 그러나 이들은 정치적으로나 사상적으로 중도주의 노선을 따랐던 중도파였다. 이들은 실제로 좌익작가였기 때문이 아니라 좌익작가로 지목됐기 때문에 전향을 해야 했다. 따라서 이들은 반공권력에 의해 ‘만들어진 좌익(작가)’이었다. 한편 반공권력은 전향한 ‘좌익작가’를 포함과 배제의 정치공학으로 관리했다. 즉 이들을 포용하면서도 국민으로부터 분리했다. 그 점에서 이들은 호모 사케르였다. 이런 상황에서 ‘좌익작가’들은 대한민국 국민으로 인정받기 위해 보도연맹이 요구하는 속죄의 윤리를 따라야 했다. 그것은 철저한 자기반성과 실천이다. 이들은 여러 방식으로 자기반성을 언어화하고, 각종 문화적 실천을 수행해야 했다. 이 같은 강요된 자기반성과 실천 속에서 이들이 겪은 정신적 고통은 컸다. 정지용과 김기림에 대한 기록과 그들의 작품에서 현실과 내면의 갈등, 내면의 분열과 착종을 읽을 수 있다. 이들의 전향 사례는 남북의 분단과 냉전적 대립 속에서 반공국가의 폭력에 ‘좌익작가’가 어떻게 고통받았는지를 알게 해 준다. The purpose of this thesis is to examine the principle and method of the conversion system, the conversion process and the movements after the conversion of the ‘leftist writer’, and their inner side after the establishment of South Korean government. The anti-communist government led the leftist to convert and managed the converts violently through the means of anti-communism, public security organization, the National Security Law, the National Protection and Guidence Federation(NPGF). At this time conversion was used in the sense of a change in thought and organization. The anti-communist government pointed them to the left just by the fact that they joined the group designated as the left wing. And it pushed forward a conversion policy based on warmth and punishment. Among the writers who joined the Joseon Writer Alliance, writers who were unable to go to North Korea or enter the mountain, representatively writers such as Jung Ji-yong and Kim Ki-rim joined the NPGF and became converts. However they did not have to convert because they were leftist writers, but they had to convert because they were designated as leftist writers. They were politically and ideologically midwayers. Therefore they were ‘intended leftist’ by anti-communist government. The anti-communist government managed ‘leftist writers’ who were converted by political engineering of inclusion and exclusion. In other words it embraced them and separated them from the people. They were Homo Sacer in that respect. In order to be recognized as citizens of the Republic of Korea, they had to follow the ethics of atonement required by the NPGF. It is self-reflection and practice. They had to verbalize self-reflection in several ways and carry out various cultural practices. They suffered great mental pain because of this forced self-reflection and practice. We can read the conflict between reality and the inner side, the division and confusion of the inner side in the records of Jung Ji-yong and Kim Ki-rim and their works. They let us know how the ‘leftist writer’ suffered amid the division of the South and North Korea and the Cold War confrontation.

딥러닝을 활용한 지가적정성 검증모형: DCGAN 적용을 중심으로

김정선 ( Kim¸ Jung Sun ) 한국감정평가학회 2021 감정평가학논집 Vol.20 No.2

최근 인공지능 기술은 모든 산업분야에서 광범위하게 적용되고 있다. 부동산분야에서도 예외는 아니며 민간분야에서 빅데이터와 컴퓨터기술의 결합으로 과업 효율성이 극대화되는 추세이다. 개별공시지가 검증업무는 매년 반복적으로 수행되고 있음에도 지가오류의 문제가 발생하고 있는바 새로운 검증방안으로서 딥러닝 중 DCGAN의 적용 가능성을 분석하였다. 연구결과 첫째, 일정한 학습이후 D와 G모두에서 안정화 추세를 보였으며 DCGAN의 정확도는 최대 78.8%수준으로 나타났다. 둘째, 소거비율을 90%~30% 범위에서 조정하여 분석한 결과 적정 소거비율은 60%로 분석되었다. 셋째, 적정 소거비율을 기준으로 용도 지역 정확도를 분석한 결과 ‘주거지역>공업지역>녹지지역>상업지역’으로 나타났다. 넷째, 학습이 진행됨에 따라 모형의 정확도가 개선되었다. DCGAN을 지가검증 모형으로 적용하기 위해서는 정책안정성을 고려하여 풍부한 입력데이터를 투입하고 정확도를 향상시킬 필요가 있다. 본 연구는 지가검증을 위한 새로운 대안의 가능성을 확인하였다는데 의미가 있으나, 분석데이터의 공간적ㆍ시간적 범위를 확대한 추가 연구가 필요하다는 한계를 갖는다. Recently, artificial intelligence has become widely utilized in all industries. The field of real estate property is not an exemption, and in private sectors, efficiency is optimized through the integration between big data and computer technology. This study analyzed the applicability of DCGAN paired with deep learning as a new verification measure. Land price errors occur for public land prices despite repeated annual verification. Based on the research findings, first, there was a stabilizing trend in D and G after steady learning where the accuracy of DCGAN was identified at 78.8%. Second, as a result of adjusting the extinction ratio within the 90%-30% range, the appropriate extinction ratio was analyzed at 60%. Third, the accuracy of land use was analyzed based on the appropriate extinction ratio, and was displayed in the order of 'residential area>industrial area>green area>commercial area' Fourth, the accuracy of the model was improved based on the learning process. To apply DCGAN as the land price verification model, it is necessary to consider the policy appropriateness and apply sufficient inserted data to improve the accuracy of the model. This study is meaningful because it identified the potential of new measurements for land price verification. There are, however, limits to this study requiring additional research with enlarged spatial and temporal ranges.

John Steinbeck"s The Grapes of Wrath: Home-Seeking and the Ambiguity of the Ending

Jungsun Choi 한국외국어대학교 영미연구소 2006 영미연구 Vol.14 No.-

Since John Steinbeck"s The Grapes of Wrath (1939) was published, critics have mainly dealt with this book from the viewpoint of political novel. Certainly these criticisms have some validity in that the novel attacked monopoly capital and pitiless industrialism. Yet what is more important in the novel, intertwined with the political, seems to be Steinbeck"s involvement with the theme of home-searching because, although all episodes in the novel are related to the political, Steinbeck continues to investigate why the people become migrants, how the migrants try to find their home, and how it is possible in reality. For the Joads, home has especially significant meaning. It has not only the meaning of security but is also symbolically related with one’s own identity. In order to have a home as a place, the Joads must break the obstacles constrained by monopoly capital. It is in this context that Steinbeck"s philosophy of sticking together, one of the controversial points of this work, appears as a solution. Their home can be found only when they take an action with the mass by transcending the traditional notion of family or growing the communal notion of family. However, although Steinbeck emphasizes sticking together among human beings in order to overcome their wretched circumstances, on the other hand, he implies to us the futility of sticking together or organization. The Joads" leaving the Weedpatch government camp indicates this apprehension of Steinbeck"s. Thus, Steinbeck, getting closer to the ending, undermines the theme of home-searching itself.

Health care strategy for ensuring work ability in an aging Korea

Jungsun Park,Jong-tae Park,Soo Geun Kim,Cheol-In Yoo,Junseok Son,Jun Yim,Dae-seong Kim,Kyung Young Rhee,Yangho Kim 대한직업환경의학회 2016 대한직업환경의학회지 Vol.28 No.-

The rapid aging trend in South Korea will cause a growing shortage of labor and decreasing quality of the labor force. The purpose of this commentary is to recommend a health care strategy to maintain and promote the work ability of employees in an aging Korea. Strategies to promote the work ability require the collaboration of governmental agencies at the central and local levels. First, the common goal should be the reinforcement of follow-up measure in general medical examinations and the promotion of healthy lifestyles for workers. Second, collaborating activities should be performed among the Worker’s Health Center, the Health Promotion Center, and community health centers. In conclusion, health care strategies for ensuring the work ability in an aging Korea require the collaboration of governmental agencies at the central and local levels.

Korean Working Conditions Survey in 2006

Jungsun Park,Naroo Lee 대한산업의학회 2007 대한직업환경의학회 학술대회 논문집 Vol.- No.-

Alteration of Immunoreactivity for SNARE Proteins in the Rat Hippocampus after Middle Cerebral Artery Occlusion

JungSun Park,PilWoo Huh,YeonJoo Jung,SuJin Park,KyungEun Lee 대한생리학회-대한약리학회 2004 The Korean Journal of Physiology & Pharmacology Vol.13 No.1

<FONT FACE= Century Schoolbook >Soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNARE) proteins, composed of two presynaptic membrane proteins [synaptosomal-associated protein of 25 kDa (SNAP-25) and syntaxin] and a presynaptic vesicular protein [vesicle-associated membrane protein (VAMP)], serve as a core of exocytotic fusion machinery, which can be affected by ischemia. Synaptic protein in core region, striatum and cortex has been shown to alter after focal ischemia, however, little is known in hippocampus. Hippocampus is remote from ischemic core, but it is one of the most vulnerable regions. Using immunohistochemistry, the present study was undertaken to investigate the alteration of expression of SNAP-25, syntaxin, and VAMP in the hippocampus of rats which were subjected to middle cerebral artery occlusion (MCAO) for 2h and allowed to reperfuse. At 2 weeks of reperfusion, the SNAP-25 and syntaxin immunoreactivity was increased in the stratum oriens of the CA1 and the stratum lucidum of the CA3 in the ipsilateral hippocampus. However, VAMP immunoreactivity didn t show significant change. These results demonstrate that the level of the presynatpic plasma membrane proteins (SNAP-25 and syntaxin) in the rat hippocampus is more sensitively affected by focal ischemia than that of the synaptic vesicle protein (VAMP).

Self-Making Villainy, Compulsive Masculinity, and Urban Cruising in Mary Elizabeth Braddon’s The Trail of the Serpent

Jungsun Choi 19세기영어권문학회 2019 19세기 영어권 문학 Vol.23 No.2

Reading Mary Elizabeth Braddon’s The Trail of the Serpent, this essay focuses on her literary representation of the self-made man figure in the character of Jabez North. Not a conventional protagonist, North, the archetypical villain, becomes the storytelling force as he vaults up from the bottom rung of the social ladder and eventually attains his life objective of colossal wealth and social recognition. In dealing with North’s social climbing, Braddon constructs North as a lower-class young man who, with his diligence and exactness, likely follows Victorian popular beliefs in self-making. As the narrative proceeds, Braddon shows that Victorian self-help ideas may sound fascinating, but they can be misapplied in her construction of the self-made man character who is discovered to be a criminal mastermind. Also, drawing on gender criticism related to studies of Victorian masculinity in literature, this article argues that Braddon’s construction of the self-made man figure helps to clarify a shift in Victorian perceptions of hegemonic masculinity. By elucidating the meaning of North’s rise and fall, Braddon shows that Victorian men are asked to display their economic ability in order to achieve a higher social status and maintain a dominant position in competition with other men, but once they do, they are immediately made to see that the given social norms of gender and class are not easily subverted or challenged.

Affixation effects on word-final coda deletion in spontaneous Seoul Korean speech

Jungsun Kim 한국음성학회 2016 말소리와 음성과학 Vol.8 No.4

This study investigated the patterns of coda deletion in spontaneous Seoul Korean speech. More specifically, the current study focused on three factors in promoting coda deletion, namely, word position, consonant type, and morpheme type. The results revealed that, first, coda deletion frequently occurred when affixes were attached to the ends of words, rather than in affixes in word-internal positions or in roots. Second, alveolar consonants [n] and [l] in the coda positions of high-frequency affixes [nɨn] and [lɨl] were most likely to be deleted. Additionally, regarding affix reduction in the word-final position, all subjects seemed to depend on this articulatory strategy to a similar degree. In sum, the current study found that affixes without primary semantic content in spontaneous speech tend to undergo the process of reduction, favoring the occurrence of specific pronunciation variants.