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      • KCI등재후보

        정치참여와 사회통합 : 태극기집회 참가자조사에 의거해서

        장우영 중앙선거관리위원회 2018 『選擧硏究』 Vol.1 No.9

        This study aims to empirically identify the characteristics of Taegeukgi rally in terms of ‘ideology, generation, and bias.’ And this research has a goal to suggest the task of political reform and social integration. In other words, what was the characteristic of the political orientation and attitude of participants of Taegeukgi rallies? What are the characteristics of their rally participation mechanisms and methods? Is it the best of the our community to isolate them socially? How then will political reform and social integration be achieved after the so-called liquidation of the abolition? This study will examine these questions by using empirical survey data constructed for participants of Taegeukgi rallies. 이 연구는 ‘이념, 세대, 편향’의 측면에서 태극기집회의 특징을 실증적으로 규명하고, 정치개혁과 사회통합의 과제를 제언하려는 목표에서 시도되었다. 즉 태극기집회 참가자들의 정치적정향과 태도는 어떤 특징을 보였을까? 이들의 집회 참가 메커니즘과 방식은 어떤 특징을 가지고있을까? 아울러 이들을 사회적으로 격리하는 것이 공동체의 최선일까? 그렇다면 소위 적폐청산이후의 정치개혁과 사회통합은 어떻게 지향할 것인가? 이 연구는 태극기집회 참가자들을 대상으로 구축한 경험적 조사자료를 활용하여 이 질문들을 고찰하기로 한다.

      • KCI등재

        Analysis of vibration characteristics of one-axis heavy duty stages

        장우영,박명연,김종혁,강은구,정재일 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.12

        This study focus on the dynamic characteristics of one-axis stages with its heavy duty top plate over 300 kg. A simplified modeling of one-axis heavy duty stages for machine tools is suggested to understand the characteristics of the vibration in the heavy duty stage. The equivalent finite element model for LM guide bearings is applied to analyze the dynamic characteristics of the precision stage. Moreover, the role of screw bolts which fasten the positions between LM guide rails and the main table is also discussed. The suggested modeling shows below 11.8 % error from the measured result values of the modal experiments.

      • KCI등재

        20대 총선의 소셜미디어 캠페인 특징과 효과: 수도권 사례

        장우영 국회입법조사처 2017 입법과 정책 Vol.9 No.1

        이 연구는 20대 총선을 사례로 소셜미디어의 정치적 효과를 분석한다. 이 연구의 방법은공식 선거운동 기간에 발생한 트위터 트래픽을 활용한 빅데이터 분석방법으로서, 트위터데이터를 플랫폼별로 유형화하고 통계적 분석모형에 투입하여 연구문제를 규명하는 절차로 수행한다. 여기에서 종속변수라 할 수 있는 소셜미디어의 정치적 효과는 분석모형의 적합도를 전제로 득표율과 당락이라는 두 차원에서 논의한다. 이 연구의 분석절차와논의는 다음과 같이 진행된다. 우선 Ⅱ장에서는 소셜미디어 캠페인의 특징과 효과를 이론적으로 논의하고 트위터 캠페인의 의의를 살펴본다. 이어서 Ⅲ장에서는 수도권 지역의트위터 캠페인 현황을 개관한다. 그리고 Ⅳ장에서는 본 연구의 분석 자료와 분석방법을설명한 뒤, 트위터 캠페인이 선거 결과에 미치는 영향을 실증적으로 분석한다. 마지막으로 Ⅴ장에서는 분석 결과를 요약하고 함의를 논의한다. 연구 결과 유권자 신뢰와 자발적동원 플랫폼이 소셜미디어 캠페인에서 유의한 효과를 낳은 것으로 분석되었다. This study analyzes the political effects of social media of the 2016 Korean general election. The method of this research is big data analysis to use the Twitter traffics in the electoral campaign period. It contains the process of typing the Twitter data by platform and putting it into the empirical analysis model. The political effects of social media is discussed in the respects of the rate of votes and admission. This paper is composed as follows. First, it discusses the characteristics and effect of social media focusing the Tweeter platform in the chapter Ⅱ. Second, it examines the current situation of Twitter campaign in the chapter Ⅲ. Third, It analyzes the impact of Twitter campaign on elections in the chapter Ⅳ. Finally, It summarizes the conclusions and suggests implications in the chapter Ⅴ.

      • KCI등재

        Effect of albumin content on the rheological properties and wet foam stability of porous ceramics

        장우영,Bijay Basnet,박정규,임형미,임태영,김익진 한양대학교 세라믹연구소 2018 Journal of Ceramic Processing Research Vol.19 No.4

        The stabilization of wet foam was an important parameter for obtaining a large volume of dried foam in SiC porous ceramics. Octylamine was used as a foam stabilizer, which modifies the particle surface. Albumin was added as a foaming agent toachieve a higher volume of wet foam with higher stability. Viscosity of the colloidal suspension varying with albumin contentwas found to be typical, as on increasing albumin content, the slurry showed shear thickening behavior. The viscosity of theslurry was found to be increased, hindering thick strutting. This gave more stability to the wet foam on mechanical frothing,to produce porous ceramics on sintering. In terms of the rheological properties, wet foams were characterized as a functionof air content, wet foam stability, bubble size, and relative bubble size. Controlling the air content inside the foam, the wet foamstability of the wet foams was improved from 20 to 90% with the increment of albumin content. Proof of the stability is shownby the controlled increment of the relative bubble size to less than 2.5 times. With all these improved parameters uponsintering, highly interconnected pore structure was achieved for various applications.

      • SCOPUSKCI등재

        부종양증후군으로서 고콜레스테롤혈증과 고칼슘혈증을 동반한 간암 1예

        장우영,박경남,한동수,이명호,조균석,최호순,이창범,기춘석,함준수,손영우,전용철,손주현 대한소화기학회 1999 대한소화기학회지 Vol.34 No.2

        The paraneoplastic syndrome of hepatocellular carcinoma has been reported to include hypercholesterolemia, hypoglycemia, hypercalcemia and polycythemia. However, any case in which hypercholesterolemia and hypercalcemia are appeared together as paraneoplastic syndrome of the patient with hepatocellular carcinoma has not been reported. A 62-year-old female patient was admitted to our hospital because of general weakness, easy fatigue, anorexia, ascites and weight loss. On admission, abdominal ultrasonogram and computed tomography showed multiple variable sized hepatocellular carcinoma in the both lobes with underlying liver cirrhosis. The serum calcium level was 11.2 mg/dL and total cholesterol level was 576 mg/dL. Bone scan showed no evidence of bone metastasis. Intact parathyroid hormone level was decreased (0.1 pg/mL) and parathyroid hormone related peptide (PTHrP) level was increased (283.0 pmol/L). The lipid profiles were as follows: total cholesterol, 576 mg/dL; triglyceride, 213 mg/dL; HDL-cholesterol, 10 mg/dL; LDL-cholesterol, 523 mg/dL. Lipoprotein electrophoresis showed type IIa of hyperlipidemia and after 2 weeks, follow-up lipoprotein electrophoresis showed lipoprotein-X pattern. We report a very rare case of hepatocellular carcinoma with both hypercholesterolemia and hypercalcemia as paraneoplastic syndrome.

      • KCI등재

        알츠하이머 치매 환자의 혈청 항산화제 농도 감소

        장우영,김민경,김태석,이창욱 大韓神經精神醫學會 2006 신경정신의학 Vol.45 No.4

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        Objectives : Previous studies have suggested that oxidative injuries to the neuron may have important role in the pathophysiologic mechanisms ot dementia of Alzheimer's type. In the present study, we evaluate the plasma levels of albumin, total bilirubin, and uric acid in the patients with dementia of Alzheimer's type, and compare to those of the healthy controls. Methods : The plasma albumin, bilirubin, and uric acid levels were measured by standard methods in 102 patients with dementia of Alzheimer's type (male 42, female 60) and 99 healthy controls (male 47, female 52). The Korean version of Mini Mental Status Examination (MMSE-K) was used to evaluate the cognitive functions of patients with dementia of Alzheimer's type. Results : The plasma albumin (F=36.179, p<0.001), bilirubin (F= 101.508, p<0.001), uric acid (F= 12.688, p<0.001) levels in the patients with dementia of Alzheimer's type wcre significantly lower than those of the healthy controls. The scores of MMSE-K were positively correlated with the plasma albumin level in the patients with dementia of Alzheimer's type after adjusted for covariates such as age, gender, and body mass index (p=0.017). Conclusion : This study supported that oxidative injuries might be involved in the pathogenesis of dementia of Alzheimer's type, as well as suggested that some antioxidant might be associated with the cognitive functions in dementia of Alzheimer's type.

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