Steepest Descent Method에 의한 複合材를 利用한 Multi-ringed Flywheel의 最適設計

洪錫雨 충남대학교 공업교육연구소 1981 論文集 Vol.4 No.2

效果的인 에너지 貯藏裝置인 Flywheel에 單位 體積當 貯藏되는 運動에너지를 最大로 하기 위하여, 應力과 設計變數에 대한 制限條件을 주고 最適設計의 方法을 Steepest Descent Method로 하여 複合材로 製作된 Multi-ringed Flywheel을 最適設計하였으며, 이를 遂行하는 Computational Algorithm을 提示하였다. 數値例로써 Glass/Epoxy 複合材를 선택하였다.

저유소 자동화 시스템(Terminal Automation System : TAS) 구축방안 및 적용

홍석우,화용돈,심재일,손주영,김문호 대한산업공학회 1998 대한산업공학회 추계학술대회논문집 Vol.1998 No.10

웨이브릿 신경회로망의 프레임 함수를 이용한 지능시스템

홍석우,김용택,연정흠,전홍태 한국지능시스템학회 2000 한국지능시스템학회 학술발표 논문집 Vol.10 No.1

신생아 호흡 곤란 증후군에서 CurosurfⓇ와 NewfactanⓇ의 치료 효과 비교

홍석우,이은호,김승연,박호진 대한신생아학회 2008 Neonatal medicine Vol.15 No.2

Purpose : The aim of this study was to compare the clinical effects of modified porcine (CurosurfⓇ) and bovine (NewfactanⓇ) surfactants in the treatment of neonatal respiratory distress syndrome. Methods : Between April 2004 and December 2006, 65 neonates (birth weight ≤2,500 g and gestational age ≤35 weeks) with neonatal respiratory distress syndrome were treated in our neonatal intensive care unit with surfactant. Thirty-one neonates received CurosurfⓇ and 34 neonates received NewfactanⓇ. The neonates were not enrolled if they had major congenital anomalies or meconium aspiration syndrome. We compared the changes in respiratory parameters after surfactant instillation, the incidences of acute and chronic complications, and the mortality between the two treatment groups. Results : Neonatal and maternal demographic characteristics were not different between the groups. The patterns of change in the respiratory parameters after surfactant instillation were not statistically different between the groups. The incidences of surfactant reinstillation and acute complications, such as pneumothorax, patent ductus arteriosus, pulmonary hemorrhage, and grade 3-4 intraventricular hemorrhage, were not different between the neonates who received CurosurfⓇ and the neonates who received NewfactanⓇ. There were no statistically significant differences in the duration of mechanical ventilation, oxygen therapy, hospitalization, prevalence of bronchopulmonary dysplasia, periventricular leukomalacia, retinopathy of prematurity, necrotizing enterocolitis, and mortality between the groups. Conclusion : In the present comparative study, no significant differences in the clinical effects of CurosurfⓇ and NewfactanⓇ were observed.

얕은 지압형 앵커의 인발거동특성에 관한 실험적 연구

홍석우,김형공 한국지반공학회 2014 지반 : 한국지반공학회지 Vol.30 No.4

환경 친화적인 TSP용 강화유리의 적층 가공방법

홍석우 水原大學校 2015 論文集 Vol.29 No.-

This thesis is to develope eco-friendly block-in block-out processing method of tempered glass for TSP(Touch Screen Panel) of electronic devices such as smart phone and tablet PC. This processing method consists of stacking process, block sawing process, block grinding process, block edge-grinding process and etc. Especially in the stacking process, a paper with hydrophile property covered with water-soluble adhesive is inserted between tempered glasses and uniform spacing and strong adhesive strength between tempered glasses can be obtained. In addition, separation and cleaning process is eco-friendly without water and air pollution.

Two Pioneers of Critical Studies on Ukrainian Ethnography: M. Kostomarov and M. Drahomanov

홍석우 한국외국어대학교(글로벌캠퍼스) 동유럽발칸연구소 2015 동유럽발칸연구 Vol.39 No.6

Mykola Kostomarov and Mykhailo Drahomanov were leading Ukrainian folklorists as well as historians, political theorists, and intellectuals during the 19th century. Their ideas were still relevant in the early twentieth century, when the Ukrainian national movement was provoked and encouraged by their writings. Kostomarov was the first critical folklorist who shifted the focus of Ukrainian folklore study away from the collection of old folk materials towards the enthusiastic search for Ukrainian historical and cultural ground on which contemporary Ukrainian national identity would be created. Furthermore, Drahomanov continued Kostomarov’s legacy and even advanced the level of ethnographic studies, attempting to prove the historical reality of folksongs and other genres. Drahomanov believed that Ukrainian peasants were able to comprehend and draw to the same ideas like freedom, liberty, fraternity, as did the most progressive and educated European people. Because Ukrainian noble classes and intelligentsia were Russified or Polonized, he appealed to them to return to their roots and to look for them in the culture of Ukrainian peasants. This study attempts to discuss these two pioneers’ contributions to the study of Ukrainian folklore and the way how the discipline was developed by them in various aspects.

The Influence of Western Culture onUkrainian Cultural Identity

홍석우 한국세계지역학회 2008 世界地域硏究論叢 Vol.26 No.2

This paper focuses on how the Western culture and values that began to flow in Ukraine after 1991 in the process of globalization have influenced the formation of its identity as a newly emerging independent state. This paper aims to analyze if globalization will have a positive impact on the formation of Ukraine’s identity and thus help Ukraine transform itself into a democratic and capitalist country, or it will cause only confusion over its identity. The study shows that instead of one-sided assimilation to the Western culture triggered by globalization, Ukraine is experiencing changes in its identity in various ways under the influence of multiple social characteristics and factors that exist in Ukraine. Much of Western customs has been accepted in symbols, heroes and rites. On the other hand, efforts were equally made to better understand Uraine’s uniqueness and rediscover its traditions and customs. Ideas were borrowed from the past but they were modified and given new meanings in the contemporary context. The Ukrainian government and nationalists have been trying to use historical symbols and establish the Ukrainian identity. New symbols and rituals were created, resulting in the construction of a new identity. The impact of the Western culture was found particularly strong in customs including symbols, heroes, and rituals. The value system or the core of a culture is still going through painful phases and changes are taking place at a relatively slow pace. In the midst of globalization, forming Ukraine’s identity is indeed a dynamic process that entails problems as well. Introduction of mature political, economic and value systems of the West, was accompanied by the penetration of imperialistic culture. Another important reason is that Ukraine lacks various social conditions that are needed to create a civilized society as found in the West. Unfortunately, undemocratic political practices still work in Ukraine and the construction of a Western-style civilized society is negatively impacted by politics-economy collusion, lack of proper legal systems and institutions and underdeveloped economic capacity. This is also blocking a mature cultural identity from emerging. In this context of the social reality facing Ukraine, the Orange Revolution was a major historical event that presented a possibility that Ukraine can evolve into a democracy. The Orange revolution provided Ukrainians with the momentum to fight against corruption and pursue democratic values. However, in order for top-down policies to produce genuine effects, consistent and sustainable democratic policies for the public such as substantial social reforms and legal and institutional devices to ensure citizens’ participation, are required. To restore Ukraine bogged down in political and economic drags, it is necessary to create an ethnic and cultural identity based on democratic values instead of narrowly-defined nationalism and to build a mechanism through which the desire and passion of the public as witnessed in the Orange Revolution can be reflected in political and social systems on an ongoing basis.

동유럽의 회색지대:포스트소비에트시대 우크라이나, 몰도바 그리고 벨라루스의 향방

홍석우 한양대학교 아태지역연구센터 2011 중소연구 Vol.34 No.4

우크라이나, 몰도바, 그리고 벨라루스는 소련의 붕괴로 21세기 동유럽의 지도 위에 새롭게 등장한 민족국가들이다. 이 국가들의 공통된 특징은 동과 서, 다시 말해 러시아와 유럽 사이에 위치하면서 주변지역의 정치, 경제, 안보에 있어 지속적으로 영향을 받고, 반대로 동유럽에서의 질서와 힘의 균형을 결정하는 중요한 역할을 한다는 것이다. 본 연구는 이 지역에서의 정체성 형성과정을 살펴보고, 독립 이후 전개되어왔던 서로 다른 국내정치의 상황과 변화의 요인들을 살펴보았다. 이어 러시아, 유럽, 미국의 관계 속에서 이 지역이 어떤 방향으로 발전할 것인지에 대해 전망하였다.

Validity, Reliability and Responsiveness of the Korean Version of Quick Disabilities of the Arm, Shoulder, and Hand Questionnaire in Patients with Carpal Tunnel Syndrome

홍석우,공현식,박정위,노영학,백구현 대한의학회 2018 Journal of Korean medical science Vol.33 No.40

Background: The Quick Disabilities of the Arm, Shoulder, and Hand questionnaire (QuickDASH) is one of the most widely used questionnaires for assessing functional ability of the patients with upper extremity diseases. Carpal tunnel syndrome (CTS) is the most common neuropathic disease in the upper extremities. The aim of this study was to verify the validity, reliability, and responsiveness of Korean version of QuickDASH questionnaire (K-QuickDASH) in the patients with CTS. Methods: In total, 83 subjects who underwent open carpal tunnel release (CTR) operation were selected. They fulfilled Korean version of Disabilities of the Arm, Shoulder and Hand questionnaire (K-DASH) and K-QuickDASH at two different time points: before and six months after the surgery. Both criterion-related and construct validities were evaluated using Pearson's correlation coefficient and factor analysis. Internal consistency was estimated using Cronbach's alpha, and test-retest reliability was assessed to verify the reliability of K-QuickDASH using intraclass correlation coefficient (ICC). The standardized response mean and the effect size were analyzed to confirm the responsiveness of the K-QuickDASH in CTS patients. Results: Significant positive correlation was found between K-QuickDASH and K-DASH. All the questionnaire items were categorized into three factors. Acceptable internal consistency was confirmed in three categories of K-QuickDASH. A high test-retest reliability and responsiveness of K-QuickDASH were detected. Conclusion: K-QuickDASH in Korean patients with CTS was confirmed to have high degree of validity and reliability, and responsiveness after CTR. Therefore, the K-QuickDASH would be a good evaluation tool for evaluating clinical symptoms and determination of treatment outcomes in the patients with CTS.