Phase/Microstructural Analysis using Rietveld Refinement of High-Manganese Steels (초)

정재석,구양모,이순기 대한금속ㆍ재료학회 2009 대한금속재료학회 학술대회 개요집 Vol.2009 No.-

서사 구조의 놀이적 차원 -안정효의「낭만파 남편의 편지」를 중심으로-

정재석 한국문학이론과 비평학회 2000 한국문학이론과 비평 Vol.7 No.-

멜트블로운 부직포의 형태와 물리적 특성을 제어하는 공정기술에 관한 연구

정재석,김미경,고정우 한국표면공학회 2023 한국표면공학회지 Vol.56 No.5

Non-woven fabric is a textile product made by spinning thermoplastic polymers without manufacturing processes such as stretching, doubling, twisting, weaving, and knitting to form a sheet-shaped web in which fibers are tangled with each other, and then combining them by mechanical and physical methods. In addition, the non-woven fabric manufacturing process has various raw material choices, high productivity, so it is a textile manufacturing technology that can have various uses and increase added value. This study was conducted to control the shape and physical properties of products by improving the manufacturing method of melt-blown non-woven fabrics using process technology that easily changes the shape of non-woven fabrics and improves mechanical properties. In particular, it is considered that a non-woven fabric with a thin material shape and improved mechanical properties will be easily applied to a continuous secondary battery manufacturing industry such as roll to roll operation.

대학생의 불확실성에 대한 인내력 부족과 학교생활소진의 관계: 자기자비로 조절된 경험회피의 매개효과

정재석,안진아 한국청소년학회 2023 청소년학연구 Vol.30 No.10

The purpose of this study was to examine the mediation effect of experiential avoidance relationship between intolerance of uncertainty and college student burnout, and the moderated mediation effect of self-compassion in this path. For this purpose, an online survey was conducted for college student in South Korea, and 311 people’s data were collected. The data were analyzed by using SPSS 26.0 and Spss Process macro 4.1. The result were as follows: First, the mediation effect of experiential avoidance on the relationship between intolerance of uncertainty and college student burnout was significant. Second, the significant moderation effect of self-compassion on the relationship between intolerance of uncertainty and experiential avoidance was found. Finally, Self-compassion moderated the mediating effect of intolerance of uncertainty on college student burnout through experiential avoidance. It suggest that self-compassion can alleviate the path that intolerance of uncertainty on college student burnout through experiential avoidance. Based in these results, the implication and limitation of this study and suggestion for future research are discussed.

멜트블로운 부직포의 형태와 물리적 특성을 제어하는 공정기술

정재석 한국표면공학회 2023 한국표면공학회 학술발표회 초록집 Vol.2023 No.11

Success Factors of Paris Baguette’s Bakery Franchise Business: Industry Competition and Core Competence Analysis

정재석,정한나라,고기현,문정훈,강형구 한국마케팅학회 2013 ASIA MARKETING JOURNAL Vol.15 No.2

The main goal of this study is to examine the competition intensity in the Korean bakery franchise industry and to identify the core competencies of the industry’s leading company, Paris Baguette. The frameworks of PEST analysis, Cross Impact analysis, a Five Forces Model, a Value Chain, and VRIO analysis. PEST and Cross Impact analysis were employed to investigate the industry’s external environment, and the results indicated that ‘increased attention on corporate’s Creating Shared Value (CSV) activities’ is the most influential factor among others. The analysis using the Five Forces Model found industry rivalry and substitutes were the greatest threats. Finally, the results of Value Chain and VRIO analysis identified four core competencies of Paris Baguette: its CEO’s craftsmanship, e-procurement system, quality of dormant dough, and hub system. Multiple managerial implications are suggested for practitioners in the marketing area, especially in the saturated market environment.

A Case of Primary Pulmonary Lymphoepithelioma-like Carcinoma Misdiagnosed as Adenocarcinoma

정재석,김소리,박승용,정명자,이용철 대한결핵및호흡기학회 2013 Tuberculosis and Respiratory Diseases Vol.75 No.4

Primary pulmonary lymphoepithelioma-like carcinoma (LELC) is rare, with a more favorable prognosis compared with that of other types of non-small cell lung cancers. Herein, we describe an interesting case of primary pulmonary LELC confirmed postoperatively, which had been initially diagnosed as poorly differentiated adenocarcinoma. We suggest that despite the rarity of pulmonary LELC, it should be included as one of the differential diagnoses for lung malignancies. Physicians should consider taking a larger biopsy, especially when histologic examination shows undifferentiated nature.

Mechanical Twinning of TWIP-steels from Scattering Data using the Pair Distribution Function (초)

정재석,구양모,정일경 대한금속재료학회 ( 구 대한금속학회 ) 2007 대한금속재료학회 학술대회 개요집 Vol.2007 No.1

다양한 방적 시스템에 따른 양모 방적사 물리적 특성의 정량적 분석

정재석,김미경,강후창 한국섬유공학회 2023 한국섬유공학회지 Vol.60 No.5

Recently, eco-friendly materials have emerged around the world due to the needfor carbon neutrality. For this reason, the increase in demand for natural fibers and ecofriendlymanufacturing technology using them are becoming important. In this study, thephysical characteristics of spun yarn were compared using undyed wool fibers and dyedwool fibers in the spinning industry. And the structural forms of spun yarn according to thespinning system, such as traditional ring spinning, sirospun, and hybrid sirospun werecompared. In the case of single yarn manufactured in the existing ring spinning machine,the difference in the variation coefficient of the yarn count and the irregularity of theundyed and dyed fibers showed a small level. However, the coefficient of variation of yarncount and the irregularity tended to be significantly lowered in the two folded yarn usingsingle yarn. And the difference between tensile strength and tensile elongation decreasedby a large difference, and the tensile strength and tensile elongation of the two folded yarnusing single yarn tended to increase. In addition, the variation coefficient of the yarn countand the irregularity according to the spinning system tended to increase in the order ofring spinning, sirospun, and hybrid sirospun spinning. However, tensile strength and tensileelongation tended to decrease in the order of ring spinning, sirospun, and hybridsirospun spinning. Therefore, in the future, it is considered important to design an optimizedproduct that satisfies the core requirements of the product's appearance, physical,and economic conditions in consideration of the technical characteristics expressed in thespinning system.

타자의 초상과 신생 대한민국의 자화상 ―해방 ~ 한국 전쟁기 인도 인식을 중심으로

정재석 동국대학교 한국문학연구소 2009 한국문학연구 Vol.0 No.37

This paper starts by critical thinking regarding the necessity of carefully considering linkage between countries in political world history, including the United States and the Soviet Union, in order to understand international political geography and how Korean society views itself, post Korea’s liberation from Japanese occupation. Based on that critical mindset, we have examined the mechanism of identification and differentiation, as practiced by the Korean intellectuals after the colonization period, through the discourse on India produced within South Korea during the liberation and the Korean War. The reason why I selected India is because of the similarity of the historical experiences of both India and South Korea and the international political prestige which India gained after its liberation. After the Korean liberation from Japan, Koreans were able to reconstruct their position from a post-colonial nation to a new portrait of themselves as anti-Communists who deliver justice through identification and differentiation with India. South Korea admired India for its independent movement, yet India was still considered different due to its disparate culture. Through India's example, Korea was able to establish its identity as the subject of a colonized nation who fought for independence and became a post-colonial liberated nation with a more civilized society. On the other hand, divided India had significant influence on Koreans to enhance their desire for independence. Being an example of how a conflict within a nation can hamper establishment of a solid country, India triggered Korea to picture them as a complete nation which overcomes through a disorder. Also, Koreans were able to sense divided nation could possibly intensificate Cold War in the Korean peninsula by witnessing the disorder in India followed by a war. After China became communist and the Cold War was dimmed, India helped Republic of Korea to identify them as “anti-communism democratic fortress.” Although nonaligned India was first loved by others, they were slowly segregated by the discourse of “democratic camp” and the United Nation as they went through series of wars. Under the impression of transmuted Orientalism:considering people who do not follow nonaligned India inhumane, Republic of Korea was able to consider themselves as a part of Cold War empire in the Cold War movement. Republic of Korea, the “anti-communism democratic fortress,” consolidated their position by segregating communism and trying to differentiate themselves from other noncommunist. 이 글은 해방 이후 국제 정치적 지형과 그 속에서 한반도가 차지하는 위치에 대한 남한 사회의 인식을 살펴보기 위해서는 미ㆍ소에 대한 관심과 연동되어 있는 기타 지역에 대한 인식을 고찰할 필요가 있다는 문제의식에서 출발한다. 이 같은 문제의식에서 이 글은 해방 이후 한국 전쟁기를 거치는 사이 남한에서 생산된 인도 관련 담론을 통해 탈식민 조선 지식인들이 수행한 세계적 차원의 동일화와 차이화의 메커니즘을 규명하려 하였다. 인도를 대상으로 삼은 이유는 인도와 조선이 겪었던 역사적 경험의 유사성과 해방 이후 인도가 차지했던 국제 정치적 위상 때문이다. 해방 후 한국인들은 인도와의 동일화와 차이화를 통해 문명화된 탈식민 해방 민족의 위치에서 정의를 수호하는 반공 민주 국가로 스스로의 위치를 이동시키며 새로운 자화상을 그려 나갈 수 있었다. 인도는 탈식민 독립 투쟁의 선봉으로서는 선망의 대상이었지만 아직 문명화되지 못했다는 인식 속에서는 차이화의 대상이었다. 인도를 통해 한국인들은 독립을 위해 함께 투쟁한 피식민 민족 주체이자 문명의 위치에 보다 가까운 탈식민 해방 민족이 될 수 있었다. 한편 분할 독립한 인도는 통일 국가에 대한 한국인들의 열망을 일층 고양시키는 대상이었다. 민족 내의 갈등이 강건한 민족 국가의 성립에 저해가 됨을 보여 줌으로써 인도는 분란을 극복한 완전한 네이션으로서의 조선에 대한 상상을 자극했다. 동시에 인도의 분란이 전쟁으로 이어지는 것을 목격하면서 한국인들은 분단된 한반도에서 냉전이 격화될 가능성을 감지할 수 있었다. 중국이 공산화되고 냉전이 열전으로 화하면서 인도는 대한민국이 스스로를 ‘반공 민주 보루’로서 정위할 수 있게 하는 데에도 일조했다. 애초 ‘구애의 대상’이었던 비동맹 인도는 전쟁을 거치며 ‘민주 진영’과 유엔을 보편으로 상정하는 담론 전략 속에서 배제의 대상이 되어 갔고, 비동맹 인도를 보편을 따르지 않는 비인도(非人道)적 무리로 표상하는 변주된 오리엔탈리즘의 시선 속에서 대한민국은 냉전 질서 속에서 스스로를 냉전 제국의 일부로 간주할 수 있었다. ‘반공 민주 보루’ 대한민국은 공산주의를 타자화하고 비공산주의적 세력과의 차이화를 시도함으로써 자신의 위치를 공고히 해 갔던 것이다.