Socially Aware Discovery Approach Supporting Service Composition

Yong Sun 보안공학연구지원센터 2015 International Journal of Grid and Distributed Comp Vol.8 No.1

Service composition provides a promising solution to integrate service components and business process, enabling cooperation with new partners. It increasingly relies on multiple service providers to fulfill a given complex business goal. Despite significant progress, most approaches of service composition are still impractical and almost unusable, because the current methods of service composition lack consideration of interaction among service providers. With the increasement of providers and services, it becomes difficult to find the required services in the distributed computing environment. This work addresses such issue and suggests metrics to discover the relationships of service providers by accounting of recent service interactions. In this way, a social network of service providers is constructed, and modeled as a social graph. Service clients can navigate the network and understand the structure and the metrics of social graph by employing social network analysis. Most importantly, through the constructing social networks, the efficiently service composition approach is therefore presented to discover a group of collaboration service providers for satisfying the business requirements. In addition, a case study is conducted to demonstrate the socially aware composition approach in details.

Hydrochar preparation from black liquor by CO2 assisted hydrothermal treatment: Optimization of its performance for Pb2+ removal

Yong Sun,Jing Ping Zhang,Fei Guo,Lian Zhang 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.9

Hydrochar was produced from hydrothermal treatment of corn straw black liquor. Response surface methodology (RSM) and the central composite design (CCD) were employed for determination of optimal char with maximum Pb2+ removal capacity. The operational parameters such as hydrothermal temperature (oC), duration (min) and solid liquid ratio (LSR) were chosen as independent variables in CCD. The statistical analysis indicates that the effects of hydrothermal temperature, duration, LSR and combined effect of hydrothermal temperature and duration are all significant for the Pb2+ removal capacity. The optimal condition for achieving the maximum Pb2+ adsorption capacity is obtained as the following: hydrothermal temperature (205 oC), duration (28min), LSR (12) with Pb2+ removal capacity reaching 47mg/g. The BET specific surface area of char prepared at optimal conditions could reach 85m2/g.

One-pot synthesis of high fructose corn syrup directly from starch with SO42−/USY solid catalyst

Yong Sun,Caixia Xiong,Huihui Chen,Xianhai Zeng,Xing Tang,Tingzhou Lei,Lu Lin 한국화학공학회 2017 Korean Journal of Chemical Engineering Vol.34 No.7

An efficient process was developed for the conversion of starch directly into high fructose corn syrup (HFCS) by using SO4 2−/USY solid catalyst in water. The SO4 2−/USY catalyst was found to act as a bifunctional catalyst with high activity for both hydrolysis of starch and isomerization of glucose, achieving a one-step preparation path of HFCS from starch. An optimal HFCS yield, containing 58.34% glucose and 27.84% fructose (mass fraction), was obtained at 150 oC for only 1 h.

Effects of Temperature on the Ground State of a Strongly-Coupling Magnetic Polaron and Mean Phonon Number in RbCl Quantum Pseudodot

Yong Sun,Zhao-Hua Ding,Jing-Lin Xiao 한국물리학회 2016 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.69 No.1

On the condition of strong electron-LO phonon coupling in a RbCl quantum pseudodot (QPD), the ground state energy and the mean number of phonons are calculated by using the Pekar variational method and quantum statistical theory. The variations of the ground state energy and the mean number with respect to the temperature and the cyclotron frequency of the magnetic field are studied in detail. We find that the absolute value of the ground state energy increases (decreases) with increasing temperature when the temperature is in the lower (higher) temperature region, and that the mean number increases with increasing temperature. The absolute value of the ground state energy is a decreasing function of the cyclotron frequency of the magnetic field whereas the mean number is an increasing function of it. We find two ways to tune the ground state energy and the mean number: controlling the temperature and controlling the cyclotron frequency of the magnetic field.

도시와 ‘감응’하는 자의 실험 : 벤야민의 도시 경험과 역사 개념의 문제

권용선 ( Kwon¸ Yong-sun ) 동국대학교 영어권문화연구소 2018 영어권문화연구 Vol.11 No.3

This paper started by inspecting the Korean translation and literary application examples of the word having the meaning of Spinoza’s affectus / affect concept and seeing the experience and history of Walter Benjamin's city from the viewpoint of “responsive” Try. Walter Benjamin tried to understand the cities, things and culture of the 20th century in a manner that “responds” to some European cities. He applied such a method to historical research and extended it to a method of analyzing capitalist culture and history for the 20th century Arcade in Paris. Benjamin worked actively on the sensitive concepts such as ‘sympathy’ and ‘aura’ while studying Baudelaire and Proust’s works, photography and technology reproduction. For him, the impossibility of communism in the era of the disappearance of the aura and the loss of the sensitive relationship was to establish a ‘depressing’ capitalist production relation. Nonetheless, he affirmed the availability of technology and tried to find meaning in the trivial and worthless things of the fragmented world. All of this was to find the exit of the tragic reality in the images of history.

구전설화 속 ‘방뇨담(放尿譚)’의 양상과 의미 : 분뇨서사에 투영된 소피(所避)행위의 아브젝시옹과 그로테스크

김용선 ( Kim¸ Yong-sun ) 동국대학교 한국문학연구소 2021 한국문학연구 Vol.- No.66

생명의 발원이며 신비스러운 액체인 물은 때로 생명체 내부에서 바깥으로 환원되는 현상을 보이는데 가령 땀, 눈물, 콧물, 침, 그리고 오줌이 여기에 해당될 것이다. 이들은 모두 수분(水分) 그러니까 물기를 지닌 대상들이다. 여기에서는 몸 바깥으로 배출되는 수분 중 가장 지저분하다고 여겨지는 오줌만을 주목하였다. 배출인 동시에 배설인 방뇨에 대한 서사적 고민을 담아본 것이다. 인간의 배설은 공교롭게도 고체〔방분〕· 액체〔방뇨〕· 기체〔방귀〕의 모든 형태를 고루 갖출 줄 안다. 연구자는 앞서 똥과 방귀에 대한 고찰을 시도한 바 있으며 이들에 대한 서사적 관찰을 보다 용이하게 하고자 ‘분뇨서사’라는 용어를 만든 바 있다. 본고에서도 이를 활용한다. 분뇨서사로서 방뇨담 분류로부터 보다 나아가 배설의 윤리적 문화 관습의 흔적을 보고자 했다. 이를 통해 단순히 위생적 차원과는 또 다른 배설 행위를 담아낸 방뇨담의 ‘이면(裏面)’을 조심스럽게 추정해 보았다. 다만 여기에서의 ‘윤리’란 ‘윤리학’으로의 엄밀한 의미를 지닌 학술과 학문체계로의 윤리이기 보다 느슨한 의미로의 ‘윤리’로 사용하였다. 고전서사 속 방뇨담을 ‘발복형 방뇨담, 약재형 방뇨담, 생활형 방뇨담, 성애형 방뇨담, 전설형 방뇨담, 바보형 방뇨담’의 여섯 가지로 분류해 보았다. ➊ 발복형 방뇨담에는 방뇨몽을 꾸어 매몽행위로 이어지며 권력을 쟁취하는 서사와 임신과 출산으로 이어지는 소피행위를 소개한 방뇨담이 해당된다. ➋ 약재형 방뇨담은 소변이 일종의 약재로 사용된 경우에 해당한다. 서사 속 주인공의 몸을 보호해주는 역할을 하는데 약재형 방뇨담은 역사인물과 결부되어 전설형 방뇨담이 되기도 한다. ➌ 생활형 방뇨담은 방뇨가 거름의 역할을 수행하는 점을 부각하거나 요강 등 소피와 연관된 물건을 소재로 한 이야기가 해당된다. ➍ 성애형 방뇨담은 발복형 방뇨담과 전설형 방뇨담에 해당되는 신화소로의 소피행위가 성적 화소로 전락한 경우라 하겠다. 여성의 경우 노상방뇨가 남성을 이끌어 두 남녀 모두 위기를 맞이하거나, 남성의 경우 여성 전승집단의 육담대상이 되고 만다. ➎ 전설형 방뇨담의 경우 거인여신, 영웅의 어머니가 남긴 흔적이 담기거나 역사인물의 비극적 결말을 설명해주는 장치로 활용되기도 한다. ➏ 바보형 방뇨담은 혼인서사와 연관되어 꼬마신랑, 바보사위, 바보며느리의 위생관념과 관계된 이야기로 소개된다. 방뇨담은 분뇨서사의 맥락에서 일종의 배설 윤리를 지닌 서사로 이해할 만하다. 여섯 갈래 방뇨담 모두 도덕적 가치를 내포한 일정한 금기요소를 지니고 있기 때문이다. ➊ 발복형 방뇨담에는 오줌꿈이나 소변행위가 지닌 가치에 대한 금기가 권력이동, 부의 생산, 자녀출산 등에 작동되고 있음을 깨닫게 해주었으며, ➋ 약재형 방뇨담의 경우에는 인물의 죽음을 지연하는 데에 오줌이 활용될 만큼 오줌의 약효에 관한 금기가, ➌ 생활형 방뇨담에서는 농업생산에 있어 함부로 할 대상이아니라는 금기가, ➍ 성애형 방뇨담에서는 유혹의 상징으로 주의를 하게 만드는 금기가, ➎ 전설형 방뇨담에는 신화적 방뇨행위의 흔적이 금기로 남았으며, ➏ 바보형 방뇨담에서는 해학대상으로 전락한 신화의 끝자락을 일종의 웃음이 주는 금기로 이해하게 한다. 이들 방뇨담 속의 금기는 방뇨의 신성함, 비범함을 윤리적 금기로 담아내고 있음을 확인해 보았다. 따라서 이를 ‘배설의 윤리’라고 칭하였다. 나아가 윤리의 잣대는 각각의 방뇨담에 공포의 그로테스크 또는 해학의 그로테스크 미학을 통해 작동됨을 확인할 수 있었다. Water, the source of life and a mysterious liquid, sometimes shows a phenomenon of being discharged from the inside a living-being in the form of sweat, tears, runny nose, saliva, urine and as the like. These are all kinds of water with various ingredients. In this thesis, I pay attention exclusively to urine, which is considered to be the dirtiest of the moisture discharged from the body. This is an epic worry about urination, which is both discharge and excretion. Human excretion, fortunately, knows how to equip all forms of solid [dust], liquid [urine], and gas [fart]. Researchers have previously attempted to examine poop and farts, and coined the term “manure narrative” to make narrative observations about them easier. This is also used in this thesis. As a manure narrative, I wanted to go beyond the classification of urine stories and look at the traces of the ethical, cultural practices of excretion. Through this, I carefully estimated the “side” of a pissing dam that contains an excretion behavior that is different from a simple hygienic dimension. However,'ethics' here is used as 'ethics' in a looser sense rather than as an academic term or an academic system that has an austere meaning as ‘thics’. I have classified pissing stories in the classic narrative into six categories: ‘Popular Pissing Story, Medicinal Pissing Story, Life Pissing Story, Sexual Pissing Story, Legendary Pissing Story, and Fool’s Pissing Story’. ➊ Pissing-type pissing stories includes a narrative of having a pissing dream, leading to an act of plum dreaming, and gaining power, and a pissing story that introduces the act of Sophie leading to pregnancy and childbirth. ➋ Medicinal pissing is applicable when urine is used as a kind of medicinal material. It protects the body of the protagonist in the narrative, and the yakjae-type pissing story is also associated with a historical character and becomes a legendary pissing story. ➌ Life-style pissing story emphasizes that pissing plays the role of manure, or is a story about objects related to Sophie, such as a guideline. ➍ Sexual pissing talk is a case where the act of sophistication to a mythical place, which is a legitimate pissing talk and a legendary pissing talk, and then the case turns into a sexual motif. In the case of women, on-street urination lures men and both men and women face a crisis, or as for men, they become the targets of sexual intercourse by the seducing women's intoxication. ➎ In the case of a legendary pissing story, it is used as a device to contain the traces left by the giant goddess and the mother of a hero, or to explain the tragic ending of historical figures. ➏ The foolish pissing story is related to the marriage narrative and is introduced as a story related to the hygiene concept of the little bridegrooms, foolish son-in-laws, or foolish daughter-in-laws. These pissing stories are understandable as narratives with a sort of excretory ethics in the context of excretion narratives. This is because all six pissing stories have certain taboo elements that contain moral values. ➊ Pissing-type stories make people realize that the taboos on the value of pee dreams or urine acts are operating in power transfer, wealth production, and childbirth. ➋ Medicinal pissing stories are used to delay the death of a person. The taboo on the medicinal effects of urine can be used in the body for survival. ➌ Life-style pissing stories carry the taboo that pissing is a material that is not to be treated carelessly for agricultural production. ➍ Sexual pissing talks contain the taboo that makes you pay attention to pissing as a symbol of seduction for sexual love. ➎ Legendary pissing talks contain the taboo of leaving traces of mystical pissing. The traces of the mythical pissing act remained a taboo in the brother's pissing story. ➏ The foolish pissing stories have taboo that presents the laughter at the end of humorous stories. It was confirmed that the taboos in these pissing stories contain the sacredness and idosyncrasy of pissing as an ethical taboo. Therefore, I called this ‘the ethics of excretion’. Furthermore, the standard of ethics could be confirmed to work through the grotesque of fear or the grotesque aesthetics of humor on each urinary stories.

화재대응역량 개선방안에 대한 연구: 제천스포츠센터 화재 사례를 중심으로

송용선 ( Song¸ Yong-sun ) 한국융합과학회 2021 한국융합과학회지 Vol.10 No.5

연구목적: 이 연구는 우리나라 화재대응시스템에 대한 총체적인 점검이 필요하다는 판단하에 제천 스포츠센터 화재 참사 사례분석을 통해 나타난 문제점을 다각적으로 도출하여, 효과적인 화재대응 개선방안을 모색하는데 도움이 될 수 있는 정책자료를 제시하는데 그 목적이 있다. 연구방법: 분석대상으로 2017년 발생한 제천 스포츠센터 화재 참사 사례를 대상으로 문제점을 분석하고 개선방안을 제시하였다. 결과: 제천 스포츠센터 화재대응의 문제점은 ①) 119 종합상황실 운용상 문제점 ②소방 현장지휘관의 역량 부족 ③ 초동 대응능력 부재 ④ 소방장비 관리상의 문제점 ⑤ 소방인력 배분상의 문제점 등을 도출하고 개선 방안을 제시하였다. 결론: 제천 스포츠센터 화재 참사에 대한 사례분석을 통해 문제점을 다각적으로 분석한 결과 119 종합상황실 운영 개선방안, 소방 현장지휘관 역량제고 방안, 초동 대응능력 개선방안, 소방장비 관리상 개선방안, 효율적인 소방인력 배분 개선방안 등을 제시하였다. Purpose: Under the evaluation that an overall inspection on the South Korean fire response system is necessary, this research deduces problems from the case of Jecheon sports center fire from multiple perspectives, and aims to suggest policy materials to develop effective improvement measures for fire response. Methods: The 2017 Jecheon sports center fire case was selected as the subject of analysis to analyze problems and suggest measures for improvement. Result: The Jecheon sports center fire response displayed problems in ① 119 situation room operation ② On-site firefighting commander’s capability ③ Initial response ④ Firefighting equipment maintenance ⑤ Firefighting personnel distribution. Conclusion: A multilateral case analysis of the Jecheon sports center fire tragedy suggests improvement in 119 situation room operation, on-site firefighting commander’s capability, initial response, firefighting equipment maintenance, and firefighting personnel distribution.

Classification by feedback structure and partitioning into acyclic subgraphs for a cyclic workflow graph

Yongsun Choi 대한산업공학회 2004 대한산업공학회 춘계학술대회논문집 Vol.2004 No.2

Two systemic approaches to enhance safety culture at NPPs

Yongsun Choi,Seungryul Go,Cheol Min Joo,Kwan Hee Han,Jinyoung Jang 대한인간공학회 2014 대한인간공학회 학술대회논문집 Vol.2014 No.5

Two Systemic Approaches to Enhance Safety Culture at NPPs

( Yongsun Choi ),( Seungryul Go ),( Cheol Min Joo ),( Kwan Hee Han ),( Jinyoung Jang ) 한국감성과학회 2014 춘계학술대회 Vol.2014 No.-

Two systemic approaches to enhance safety culture at NPPs are introduced: 1) Digital Dashboard System to monitor safety culture; and 2) Knowledge Management System based on process modeling techniques and social network system (SNS). 1) Digital dashboard system aims to do role of enforcing safety culture at NPPS, as a main component of continuous improvement framework, by providing all stakeholders current level and trends of safety culture in each specific attributes or indicators suggested by IAEA (International Atomic Energy Agency), INPO (Institute of Nuclear Power Operations), U.S. NRC (Nuclear Regulatory Commission), and KHNP (Korea Hydro & Nuclear Power). A prototype system has been developed to be extended to fit any mobile devices. 2) Experts` experiences expressed with specific instances are one of the best ways to be conveyed. A prototype system which represents job manuals in more comprehensible form with process modeling techniques, e.g., swim lane flow diagram, with additional features of allowing on-site recording of measurements and observations; and sharing of comments utilizing SNS combined with digital job manuals and its instances recorded.