Electrocatalytic Effects for the Reduction of Thionyl Chloride in $Li/SOCl_2$ Cell Containing Schiff Base Metal(II) Complexes

김우성,정광일,김신국,전성원,김연희,성용은,최용국,Kim, Woo-Seong,Chung, Kwang-Il,Kim, Shin-Kook,Jeon, Seung-Won,Kim, Yeon-Hee,Sung, Yung-Eun,Choi, Yong-Kook Korean Chemical Society 2000 Bulletin of the Korean Chemical Society Vol.21 No.6

Electrocatalytic effects for the reduction of thionyl chloride in $LiAICI_4/SOCl_2$ electrolyte solution containing Schiff base M(II) (M; Co and Fe) complexes are evaluated by determining kinetic parameters with cyclic voltammetry and chronoamperometry at a glassy carbon electrode. The charge transfer process during the reduction of thionyl chloride is affected by the concentration of the catalyst. The catalytic effects are demonstrated from both a shift of the reduction potential for the thionyl chloride toward a more positive direction and an increase in peak currents. Catalytic effects are larger in thionyl chloride solutions containing the binuclear [M(II) $_2$ (TSBP)] complex rather than mononuclear [M(II)(BSDT)] complexes. Significant improvements in the cell performance have been noted in terms of both thermodynamics and activation energy for the thionyl chloride reduction. The activation energy calculated from the Arrhenius plots is 4.5-5.9 kcal/mole at bare glassy carbon electrodes. The activation energy calculated for the catalyst containing solution is 3.3-4.9 kcalmole, depending on whether the temperature is lowered or rasied.

수면 중 호흡의 조절

김우성,Kim, Woo-Sung 대한수면의학회 1999 수면·정신생리 Vol.6 No.1

Sleep alters both breathing pattern and the ventilatory responses to external stimuli. These changes during sleep permit the development or aggravation of sleep-related hypoxemia in patients with respiratory disease and contribute to the pathogenesis of apneas in patients with the sleep apnea syndrome. Fundamental effects of sleep on the ventilatory control system are 1) removal of wakefulness input to the upper airway leading to the increase in upper airway resistance, 2) loss of wakefulness drive to the respiratory pump, 3) compromise of protective respiratory reflexes, and 4) additional sleep-induced compromise of ventilatory control initiated by reduced functional residual capacity on supine position assumed in sleep, decreased $CO_2$ production during sleep, and increased cerebral blood flow in especially rapid eye movement(REM) sleep. These effects resulted in periodic breathing during unsteady non-rapid eye movement(NREM) sleep even in normal subjects, regular but low ventilation during steady NREM sleep, and irregular breathing during REM sleep. Sleep-induced breathing instabilities are divided due primarily to transient increase in upper airway resistance and those that involve overshoots and undershoots in neural feedback mechanisms regulating the timing and/or amplitude of respiratory output. Following ventilatory overshoots, breathing stability will be maintained if excitatory short-term potentiation is the prevailing influence. On the other hand, apnea and hypopnea will occur if inhibitory mechanisms dominate following the ventilatory overshoot. These inhibitory mechanisms include 1) hypocapnia, 2) inhibitory effect from lung stretch, 3) baroreceptor stimulation, 4) upper airway mechanoreceptor reflexes, 5) central depression by hypoxia, and 6) central system inertia. While the respiratory control system functions well during wakefulness, the control of breathing is commonly disrupted during sleep. These changes in respiratory control resulting in breathing instability during sleep are related with the pathophysiologic mechanisms of obstructive and/or central apnea, and have the therapeutic implications for nocturnal hypoventilation in patients with chronic obstructive pulmonary disease or alveolar hypoventilation syndrome.

레이다 원전계/모의성능 실험실을 이용한 레이다 체계성능 시험 및 분석

김우성,Kim, Woo-Sung 한국군사과학기술학회 2011 한국군사과학기술학회지 Vol.14 No.6

One of the critical items in radar testing is the ability to evaluate the performance of radar systems under real operational environments. But it takes lots of time and cost to operate real targets and analyze the test results due to a large amount of data based on these complicated environments. In this paper, the Radar Simulative T&E Lab. is introduced, and the test and analysis results of the developing radar for predicting the radar system performance are described in the Radar Simulative T&E Lab. This laboratory could be used to test the far-field characteristics of antenna radiation pattern and to perform an effective radar system test and evaluation using a simulative target generator under a low cost repeating test situation.

실험적 외상성교합시 치근막섬유의 조직화학적 관찰

김우성,Kim, Woo-Sung 대한치과보철학회 1969 대한치과보철학회지 Vol.9 No.1

Occlusal force is a critical factor affecting the condition and structure of the periodontium. When the occlusal forces exceed the physiologic adaptive capacity of the tissues, tissue damage ensues. Such damage is referred to as trauma from occlusion. Excessive pressure causes compression, degeneration and realignment of the periodontal ligament fibers so that they are paralleled perpendicular to the tooth and bone. By inducing excessive occlusal forces with a high amalgam filling on rat's molar, the author observed histologic alterations of the periodontal ligament fibers by means of Hematoxylin-eosin, Van Gieson and Aldenyde fuchsin stainings. The results of the study were observed as follows: 1) The excessive occlusal forces altered arrangement of the collagenous fibers. 2) The arrangement of the oblique fibers showed appreciable differences between the control group and the group subjected to 10 days experimental trauma from occlusion. 3) The realignment of the transseptal fibers was not found. 4) The arrangement of the oblique fibers after 15 days of trauma from occusion was similar to that of 10 days experimental group. 5) The oxytalan fibers were more abundant at the cementum rather than at the alveolar bone. 6) The excessive occlusal forces produced funnel-shaped widening of the oxytalan fibers, which followed wavy course. 7) The oxytalan fibers appeared to be distributed mainly around the middle third of the root rather than that of the apical third of the root during the experimental trauma from occlusion.

수부에 발생한 거대 지방종: 증례 보고

김우성,정유훈,조남익,Kim, Woo-Sung,Jung, Yu-Hoon,Cho, Nam-Ik 대한근골격종양학회 2013 대한골관절종양학회지 Vol.19 No.2

지방종은 흔한 양성 연부 조직 종양이지만 수부에서의 발생은 흔하지 않다. 특히 수부에서 5 cm 이상의 지방종인 거대 지방종은 매우 드물어 전세계적으로 매우 적은 수의 증례만이 발표되었다. 저자들은 수부에 발생하고 조직학적으로 거대 지방종으로 확진 받았던 1례를 경험였기에 문헌고찰과 함께 보고한다. Lipomas are the commonest soft tissue tumor. However, those arsing in the hand are infrequent. Lipomas in the hand that exhibit a size of more than 5 cm call giant lipoma, these are very rare only case reports and small series of this entity have been described. We could experience a case about giant lipoma of the hand which cannot easily contact, we report a case including review of literatures.

함치성낭종으로 인해 매복된 치아의 외과 및 교정적 치료를 이용한 맹출: 증례보고

김우성,안경미,손동석,Kim, Woo-Sung,An, Kyoung-Mi,Sohn, Dong-Seok 대한악안면성형재건외과학회 2009 Maxillofacial Plastic Reconstructive Surgery Vol.31 No.2

Dentigerous cyst is an odontogenic cyst which occurs in unerupted tooth crown. After the crown formation, enamel epithelium remnants surrounded continuously proliferates and it forms effusionfluid cyst and expands due to increased internal osmotic pressure. Treatments of cysts are mainly enucleation, marsupialization and de-compression. When deciding the way of treatment, the age of a patient, the anatomical circumstances, the region of lesion and the size of cyst should be considered. Marsupialization is that some parts of internal cystic wall would be converted into oral mucosa if the cyst is large size and is concerned about neighboring anatomic structure. It can be accompanied by enucleation later and eruption of related tooth can be possible. If there is a limitation of spontaneous tooth eruption, eruption of tooth can be induced by orthodontic apparatus. There were 3 patients had dentigerous cyst and underwent marsupialization, their impacted teeth had preserved and had induced eruption, all showing satisfactory results.

제 1 중족골에 발생한 기괴 방골성 골연골성 증식증: 증례 보고

김우성,정유훈,오상훈,한은미,Kim, Woo-Sung,Jung, Yu-Hun,Oh, Sang-Hun,Han, Eun-Mee 대한근골격종양학회 2014 대한골관절종양학회지 Vol.20 No.2

기괴 방골성 골연골성 증식증(Nora씨 병변)은 드문 발생률을 가진 양성 종양으로 주로 수부 및 족부의 단관골에서 발생하는 것으로 알려져 있으나 중족골에서 발생한 증례가 국내에서 보고된 경우는 매우 드물다. 저자들은 중족골에 발생한 기괴 방골성 골연골성 증식증을 경험하였기에 문헌고찰과 함께 보고한다. Bizarre parosteal osteochondromatous proliferation (Nora's lesion) is a rare benign tumor and known to be primarily occur in the small tubular bone of the hands and feet. However, it is very unusual to be reported that it occurs in metatarsal bone in Korea. Thus, we report this tumor of metatarsal bone including the literature review because we have experienced this example.

한국 프로야구 조직의 조직풍토에 관한 연구

김우성(Woo Sung Kim),정영린(Young Lin Chung) 한국사회체육학회 1996 한국사회체육학회지 Vol.6 No.-

The purpose of this study is to identify the relationship between organizational climate and organizational effectiveness in Korean professional baseball organization. More specifically, the study aims: (1) to analyze the difference of organizational climate between upper-ranking teams and lower-ranking teams; (2) to analyze the relationship between organizational climate and member satisfaction; (3) to analyze the relationship between organizational climate and team win/loss ratio. In order to achieve the aforementioned purposes, the relevant. data were gathered from 250 professional baseball players who played at the first division. And only 217 cases were analysed. The questionnaire was composed of 32 questions including 8 sociodemographic variables, 21 independent variables, and 3 dependent variables. The data dealing with win/loss ratio were collected from the `95 Official Baseball Guide. And the questionnaire, developed by William and Hacker(1982), was used to measure the member satisfaction variables. The subfactors of member satisfaction are play satisfaction(PL), position satisfaction(PO), and belonging satisfaction(BE). The reliability of the member satisfaction variable is.80. The statistical technique; used for the analysis of this study were T-Test, Pearson`s correlation, and stepwise multiple regression analysis. The results of the study are as follows: First, there is a significant difference between upper-ranking teams and lower-ranking teams in the organizational climate. Second, the regression analysis on the effects of overall member satisfaction confirmed that stratification` is the most important determinant of overall merber satisfaction followed by `intimacy`. Third, the most important predictor of team win/loss ratio was `potency` followed by stratification`. Potency is the degree to which a group has primary significance for its members. It is reflected by the kind of needs which a group is satisfying or has the potentiality of satisfying, by the extent of readjustment which would be required of members should the group fail, and by the degree to which a group has meaning to the members with reference to their central values.

베이비붐세대, X세대, Y세대 소비자들의 소비관련 가치관과 라이프스타일의 비교

김우성(Kim Woo-Sung),허은정(Huh Eunjeong) 한국소비문화학회 2007 소비문화연구 Vol.10 No.4

  본 연구의 목적은 우리나라의 베이비붐세대, X세대, Y세대 소비자들의 소비관련 가치관 및 라이프스타일의 주요 요인들을 실증적으로 비교, 분석하는 것이다. 본 연구의 응답자들은 부산, 울산 및 인접 경남지역에 거주하는 사람들이었고, 365부의 서베이 설문지들이 최종 분석에 사용되었다. 주요 분석 결과는 다음과 같다. 첫째, 소비관련 가치 영역에서 베이비붐세대는 다른 두 세대들에 비해 가족 중심적 가치를 가지고 있었고, Y세대는 다른 두 세대들에 비해 다양성의 허용, 자아존중, 자아실현, 성취감, 타인과의 원만한 관계, 삶에서의 즐거움 및 흥분/짜릿함을 강조하는 것으로 나타났다. X세대는 소비관련 가치의 대부분 변수들에서 베이비붐세대와 Y세대의 중간적인 특성을 나타냈다. 둘째, 소비관련 라이프스타일 영역에서 베이비붐세대는 다른 두 세대들보다 절약/검소한 소비행동, 계획적인 소비, 시간절약에 민감함의 특성들을 보인 반면, Y세대는 다른 두 세대들에 비해 컴퓨터와 인터넷을 중시, 쇼핑 자체를 즐김, 감각적/쾌락적 소비행태의 특성을 보이는 것으로 나타났다. X세대는 소비관련 라이프스타일의 대부분 변수들에서 베이비붐세대와 Y세대의 중간적인 특성을 나타냈다.   The purpose of this study is to empirically compare and analyze the important factors of consumption-related values and lifestyles of Korean baby boomers, Generation X, and Generation Y. The respondents of this study were consumers in Pusan, Ulsan, and nearby Kyungnam areas, and 365 survey questionnaires were used for the final analyses. The main results of the study were as follows: First, in the area of consumption-related values, baby boomers were more family-oriented than the other two generations. Generation Y allowed more diversity, and had more self-respect, self-fulfillment, sense of accomplishment, warm relationships with others, fun and enjoyment in life, and excitement than the other two generations. Generation X showed intermediate tendencies between baby boomers and Generation Y in most areas of consumption-related values. Second, in the area of consumption-related lifestyles, while baby boomers showed more frugal consumption behavior, planned consumption, and emphasis on time saving than the other two generations, Generation Y showed more emphasis on computers and internet in daily lives, enjoyment of shopping itself, and sensory/hedonic consumption patterns than the other two generations. Generation X showed intermediate tendencies between baby boomers and Generation Y in most areas of consumption-related lifestyles.

해양소년단 소속 청소년의 해양스포츠활동 참가에 따른 학교생활적응

김우성(Kim, Woo-Sung) 한국사회체육학회 2017 한국사회체육학회지 Vol.0 No.67

The purpose of this study is to identify the difference of school life adjustment for adolescents participating in marine sports activities. For this study, purposeful convenience sampling was conducted and 332 elementary, middle school, and high school students participating in the marine sports activities were selected. SPSS 18.0 Program was used for analyzing the data. Subjects were analyzed with exploratory factor analysis, Cronbach’s α, t-test and one-way ANOVA. The conclusions are as follows: First, there are differences in the school life adjustment according to the adolescent’s socio-demographic variables. Specifically, male students adjust school life better than female students. Middle school students adjust school life better than elementary and high school students. The higher academic score students adjust school life better than lower academic score students. Second, active participants adjust school life better than the inactive ones. Especially, frequent participants adjust school life better than less frequent ones. Long time participating students adjust school life better than short time participating students. However, there is no significant statistical difference in the participating period.