오리피스 맥동관 냉동기의 수치적 해석

이강선,정은수,최헌오,Lee, K.S.,Jeong, E.S.,Choi, H.O. 대한설비공학회 1994 설비공학 논문집 Vol.6 No.3

A numerical model for the analysis and design of orifice pulse tube refrigerators has been developed. Heat transfer coefficient and friction factors in the model vary with time, and the real physical properties such as thermal conductivity and viscosity were used to improve the accuracy of the model. Thermodynamic behavior of the working fluid within pulse tube refrigerators was investigated and the effect of design parameters, such as reservoir volume, orifice diameter, and NTU of regenerator, on the cooling load and COP was shown.

추출방법에 따른 홍삼추출액의 사포닌 조성과 품질특성

이강선(Gang Seon Lee),남기열(Ki Yeul Nam),최재을(Jae Eul Choi) 한국약용작물학회 2013 한국약용작물학회지 Vol.21 No.4

This study was conducted to compare the contents of ginsenoside according the water extract conditions of red ginseng. In method A, red ginseng extract was prepared at 75℃ for 18 hours by 1 time extraction, and method B, the preparation was done at 85℃ for 18 hours by 1 time extraction. In method C, the primary extract prepared at 75℃ for 9 hours was blended with the secondary extract prepared by re-extracting the red ginseng residue obtained after the primary extraction, at 85℃ for 9 hours. Method D was the same procedure as method C but the extraction temperature for the primary extraction was 85℃ and that for the secondary extraction was 95℃. The contents of total and Rb1, Rg1 and Rg₃ ginsenoside were highest in Method C. The content of prosapogenin (ginsenoside Rg2, Rg₃, Rh1 and Rh2) was highest in Method B. There was no consistent tendency in Brix, pH, Hue value and absorbance among extraction methods.

Cloud 기반 M&S 지원 환경의 설계

이강선(Kang-Sun Lee),황보성우(Seong-Woo Hwang-Bo),김동주(Dong-Joo Kim) 한국경영과학회 2016 한국경영과학회 학술대회논문집 Vol.2016 No.4

M&S는 모델링부터 분석에 이르는 일련의 과정을 수행하여 주어진 시스템에 대한 의사결정을 지원하는 기술이다. 이 기술을 지원하기 위해 시뮬레이션 통합 환경, 웹 기반 시뮬레이션 지원 환경, 그리고 Cloud 기반 시뮬레이션 지원 환경 등의 연구들이 있어왔으나, 사용자가 시스템 환경을 구축하고 실행에 필요한 자원을 갖추어야만 그 기능을 지원받을 수 있고, 서버에서 자원을 동적으로 할당하여 사용할 수 없으며, IoT Sensor 등의 정보를 입력받을 수 없다는 문제점이 존재한다. 이 문제점을 해결하기 위해 본 논문에서는 기존 Cloud 기반 환경에서 IoT 정보, 핸드폰 센서 정보 등을 시뮬레이션에 사용할 수 있는 Cloud Service 기반 M&S 지원 환경 의 구조를 제안한다. M&S is technology to support making decision for being given system by performing series of process from moideling to analyzing. For supporting this technology, some studies about ‘simulation-integrated-environment’, ‘web-based simulation support environment’, and ‘cloud-based simulation support environment’ have been processed, but there are some problems, first, users should deploy specific system environment and have resources for implement simulations then user can be supported functionally, second, users can’t use server’s resources dynamically, lastly, users can’t put IoT sensor’s information or smartphone sensor’s information in cloud server. To solve these problems, this research suggests the cloud-based architecture of the M&S support environment which uses IoT sensor’s information and smartphone sensor’s information for simulation.

Cloud 기반 M&S 지원 환경의 설계

이강선(Kang-Sun Lee),황보성우(Seong-Woo Hwang-Bo),김동주(Dong-Joo Kim) 대한산업공학회 2016 대한산업공학회 춘계학술대회논문집 Vol.2016 No.4

M&S는 모델링부터 분석에 이르는 일련의 과정을 수행하여 주어진 시스템에 대한 의사결정을 지원하는 기술이다. 이 기술을 지원하기 위해 시뮬레이션 통합 환경, 웹 기반 시뮬레이션 지원 환경, 그리고 Cloud 기반 시뮬레이션 지원 환경 등의 연구들이 있어왔으나, 사용자가 시스템 환경을 구축하고 실행에 필요한 자원을 갖추어야만 그 기능을 지원받을 수 있고, 서버에서 자원을 동적으로 할당하여 사용할 수 없으며, IoT Sensor 등의 정보를 입력받을 수 없다는 문제점이 존재한다. 이 문제점을 해결하기 위해 본 논문에서는 기존 Cloud 기반 환경에서 IoT 정보, 핸드폰 센서 정보 등을 시뮬레이션에 사용할 수 있는 Cloud Service 기반 M&S 지원 환경 의 구조를 제안한다. M&S is technology to support making decision for being given system by performing series of process from moideling to analyzing. For supporting this technology, some studies about ‘simulation-integrated-environment’, ‘web-based simulation support environment’, and ‘cloud-based simulation support environment’ have been processed, but there are some problems, first, users should deploy specific system environment and have resources for implement simulations then user can be supported functionally, second, users can’t use server’s resources dynamically, lastly, users can’t put IoT sensor’s information or smartphone sensor’s information in cloud server. To solve these problems, this research suggests the cloud-based architecture of the M&S support environment which uses IoT sensor’s information and smartphone sensor’s information for simulation.

인종 리터러시로 읽은 「에밀리를 위한 장미」 : 침묵 당한 흑인

이강선(Lee, Kang-sun) 한국문화융합학회 2020 문화와 융합 Vol.42 No.10

본 연구는 인종 리터러시의 관점으로 포크너의 단편 소설 ｢에밀리를위한 장미｣를 읽음으로써 하인 토우브의 의미를 논하고자 한다. 마을주민들의 집단의식으로 화자인 ‘우리’는 귀족 그리어슨 가문의 마지막 후손으로 불행한 삶을 산 에밀리에 대한 기억을 모아 가십처럼 이야기를 구성하고, 독자들은 추리해 이 이야기의 순서를 맞추어야 한다. 토우브는 주인공에게 영향을 미치는 중요한 인물로 평생 그녀를 충실하게 돌보지만, 토우브가 직접 말을 하는 경우는 없고 이는 화자가 그에게 말을 하도록 허락하지 않기 때문이다. 표면적으로 제퍼슨에는 어떤 억압도 없는 것처럼 보인다. 그러나 실제로는 블랙 코드가 시행되고 있으므로, 흑인 차별이 대단히 심각하다. 즉 화자는 토우브를 포함한 모든 흑인들을 도구나 일하는 동물로 보는 것으로 다른 문화권의 독자들, 특히 인종차별에 익숙하지 않은 한국 독자들이 해설자의 관점을 취한다면, 본문 속의 타자들을 무시하게 될 것이다. 이 연구는 독자들이 사회적 맥락의 관점을 채택할 필요가 있다고 주장한다. This s tudy e xplores the significance o f the black servant T obe i n Faulk ner’s short novel “ A Rose f or E mily” by r eading i t through the perspective of racial literacy. As ‘we’, the narrators and collective consciousness of villagers, compose this horrible story like a gossip by gathering their memories about Emily, who lived an unhappy life, readers should deduce the order of the story. Tobe is an important figure affecting Emily and takes care of her faithfully throughout her life but he does not say a word as the narrators don’t allow him. On the surface, there seems to be no oppression in Jefferson. However, Black Codes are being enforced, so black discrimination is very serious. In short, the speakers see all black people, including Tobe, as tools or working animals. If readers of different cultures, especially Korean readers unfamiliar with racism, adopt the narrator’s view, would not notice the oppressions in the text. This study argues that readers need to take a social context perspective.

자동차 브레이크용 마찰재에 사용되는 원료가 크립 그론(creep groan) 특성에 미치는 영향

이강선(Kang Sun Lee),조민형(Min Hyung Cho),이은주(Eun Ju Lee),장호(Ho Jang),정근중(Geun Joong Jeong),송현우(Hyun Woo Song) 한국트라이볼로지학회 2007 한국트라이볼로지학회 학술대회 Vol.2007 No.11

Friction characteristics of a low-steel friction material were examined to investigate creep groan phenomena. The amount of ingredients (steel fiber, ZrSiO₄, cashew, natural graphite, artificial graphite, cokes) was changed to produce test specimens using a constrained mixture design. Tribological properties of the friction material specimens were obtained by using a 1/5 scale dynamometer. Results showed that the amount of different ingredients strongly affected the level of friction coefficient and the difference between the static friction coefficient and the kinetic friction coefficient (Δμ). ZrSiO₄, steel fiber and cokes tended to increase the average friction coefficient and aggravated the stick-slip phenomena that determinded creep groan propensity. Cashew and natural graphite tended to decrease average friction coefficient and Δμ. The change of the friction characteristics according to the ingredients suggested that the formation of the friction film on the brake pad was strongly affected the brake performance of the friction materials.

자기실현의 관점으로 본 척 팔라닉의 『파이트 클럽』

이강선 ( Kang Sun Lee ) 한국현대영어영문학회 2016 현대영어영문학 Vol.60 No.2

This paper is aimed at examining Fight Club (1996) by Chuck Palahniuk, having been largely regarded as fiction satirizing consumer capitalism, from the perspective of self-actualization and self-healing that could help create a new healthy personality by integrating the persona and the shadow. The anonymous narrator, a yuppie persona, represents the submissive ordinary man emasculated by late capitalism. He creates his opposite character.a violent anarchist Tyler Durden. unconsciously to realize the typical masculinity idealized by modern culture. The two characters organize a fighting club, and then build a violent program called “Mayhem Project” to destroy modern society built on the idea of consumerism. In the process of carrying out the project, the narrator recognizes the reality of masculinity distorted by culture. He makes a bold decision to get rid of Tyler, his shadow character. With this resoluteness, he evolves into a new character. He integrates the characteristics of Tyler with his own. This story revolves around a man who cannot trust himself because of distorted modern culture, he realizes the opposite value instead, finds out the defect of mass media-produced masculinity and gets rid of it to integrate his broken identities. He heals himself of this modern cultural illness and grows up to develop his new identity. (Sungkyunkwan University)

순환적 가치관에서 직선적 가치관으로

이강선(Lee, Kang-Sun) 한국번역학회 2018 번역학연구 Vol.19 No.5

그림책의 파라텍스트에 나타난 번역전략

이강선(Lee, Kang Sun) 한국번역학회 2016 번역학연구 Vol.17 No.5

토니 모리슨의 『빌러비드』: 자기 치유가 빚어낸 새로운 정체성

이강선 ( Kang Sun Lee ) 한국현대영어영문학회 2015 현대영어영문학 Vol.59 No.2

This article explores the process in which a conscious change from a slave to a freeman is depicted in Beloved, through the story of the ex-slave Sethe. She is relieved from the trauma caused by her slave life, immediately after the emancipation. The story is written with intent not only to reconstruct the African-American history but also to give a healing effect on the pride of African-Americans. Unlike many critics, the writer argues that Beloved, the ghost, is Sethe’s shadow for the closer coherence through her life. Beloved is the result of Sethe’s doublethink: she substituted the truth for the false, the resentment at her mother for the longing, and the sense of guilt of killing her baby as a manifestation of her spirit of resistance against the white. The incarnation of those long-suppressed emotions, Beloved, leads Sethe to reflect on the past to realize the truth. With her, Sethe creates the unconditionally loved childhood to compensate her lost childhood. And Sethe’s long experience of working as a paid worker stimulates her to awaken her self-esteem - the critical difference between the value of a slave and the one of a freeman. As a result of integration of those experiences, Sethe wins freedom from her trauma and gets new identity as a free matured man. In conclusion, Sethe’s healing comes from her own self. (Sung Kyun Kwan University)