직교류에서 난류제트로 유입되는 유량에 관한 고찰

김형민,김은필,Kim, Hyung Min,Kim, Eunpil 대한기계학회 1999 大韓機械學會論文集B Vol.23 No.3

A jet injected normally into a cross flow has been found to have the cross section of a horseshoe shape. It occurs by a twin vortex motion in the region downstream of the jet injection. Such a flow is inherently and highly three-dimensional and numerical calculations should play an important role. The three-dimensional momentum equations with buoyancy effect and energy equation are solved to obtain the velocity distributions, center-line trajectories, cross sectional shape and entrainment. The density difference is sufficiently small, so that the Boussinesq approximation is considered to be valid. The SIMPLE algorithm is applied in a staggered grid system of a calculational domain for the numerical method.

시부트라민(sibutramine) 음독 후 발생된 급성 정신병증 1례

김형민,우선희,최세민,소병학,Kim, Hyung-Min,Woo, Seon-Hee,Choi, Se-Min,So, Byung-Hak 대한임상독성학회 2009 대한임상독성학회지 Vol.7 No.2

A 38-year-old woman was admitted to our hospital due to agitation, nausea, chest discomfort, tachycardia and hypertension 6h after ingesting approximately 60 capsules of sibutramine. The woman developed the clinical features of acute psychosis, including auditory hallucination, agitation and paranoid ideation, on day 2. No relevant changes were detected on the laboratory examinations or on the electrocardiogram throughout the period of hospitalization. She was treated with risperidone and benzodiazepine. The symptoms subsequently resolved completely with cessation of the provoking agent. The patient was discharged on day 7 and the follow-up revealed no sequelae for 5 months.

Fractional-Step법을 이용한 비압축성 비정상 Navier-Stokes 방정식의 유한 요소해석

김형민,이신표,Kim, Hyung-Min,Lee, Shin-Pyo 대한기계학회 2003 大韓機械學會論文集B Vol.27 No.4

The main objective of the research is to develop a research code solving transient incompressible Navier-Stokes equation. In this research code, Adams-Bashforth method was applied to the convective terms of the navier stokes equation and the splitted equations were discretized spatially by finite element methods to solve the complex geometry problems easily. To reduce the divergence on the boundaries of pressure poisson equation due to the unsuitable pressure boundary conditions, multi step approximation pressure boundary conditions derived from the boundary linear momentum equations were used. Simulations of Lid Driven Flow and Flow over Cylinder were conducted to prove the accuracy by means of the comparison with results of the previous workers.

서울 지역 고등학생 및 대학생을 대상으로 한 패스트푸드업체의 '스타마케팅' 광고효과 분석

김형민,윤지영,Kim, Hyung-Min,Yoon, Ji-Young 한국식품영양학회 2014 韓國食品營養學會誌 Vol.27 No.1

The purpose of this study was to analyze the effects of celebrity endorsers used in fast food industry among highschool and undergraduate students. By taking the sample's age and income into consideration, the advertisement examples of fast food industries were chosen for this study. Data was collected by questionnaires from 400 students. For statistical analysis, the SPSS V19.0 was used for reliability and factor analysis, chi-square test and regression analysis. The results are as follows: First, there was a significant difference (p<0.01) in advertising effects according to gender and education level. Out of the consumers who were exposed to celebrity endorsers, the highschool students and women showed higher advertising effects. Second, the advertising attitude was positively related to brand images (F: 479.680, p<0.01) and buying intentions (F: 1101.427, p<0.01) as well as brand images on purchase intentions (F: 492.175, p<0.01). In conclusion, the consumers with positive attitudes towards advertisements will also evaluate brand images positively and be more likely to purchase the products.

공공서비스부문 6시그마 추진 단계별 성공요인에 관한 연구 -공공부문 사례를 중심으로

김형민 ( Hyung Min Kim ),이동원 ( Dong Won Lee ),조정래 ( Jung Rae Cho ) 한국경영공학회 2013 한국경영공학회지 Vol.18 No.3

Recently, public sector is working on utility improvement as well as private sector does. Starting from Korea Post, six-sigma management practices, which had satisfactory results for solving fundamental problems in many private companies, were introduced into Prosecutors` Office, Korea Coast Guard, Korea Customs Service and even the Korean Armed Forces in part. Although six-sigma came into spotlight with exceptional results in the various private sectors, skepticism still exists in whether six-sigma can be applicable to public service sector because it is all about statistics and was originated from manufacturing industry at first. This study identifies success factors of current six-sigma practices using past studies, analyzes whether six-sigma is well applied to public service sector or not. By doing so, this study evaluates six-sigma implementation suggests which part is inefficient and should be improved when it comes to application of six-sigma to public service sector.

네트워크 분석방법의 국제정치학적 적용

김형민(Hyung Min Kim) 한국정치학회 2009 한국정치학회보 Vol.43 No.1

본 논문에서는 먼저 네트워크와 네트워크 분석방법을 자세히 소개하였다. 이러한 소개에 뒤이어 네트워크 분석방법의 국제정치학적 적용의 시도로서, 1950년부터 2002년까지의 국제체제에 존재하는 모든 국가 간에 이루어진 군사무기 이전의 자료 (SIPRI Arms Transfers Database)를 사용하여 50여 년간의 군사무기 네트워크에 대한 고찰을 국제정치학계에서는 처음으로 시도하였다. 본 연구는 국제체제 차원에서의, 그리고 아시아 지역에서의 지난 50여 년간의 군사무기 네트워크 구조와 주요행위자들에 대하여 분석하였다. 본 연구에서의 네트워크 분석의 결과들을 간단히 정리하면 다음과 같다. 첫째, 국제체제 차원에서나 아시아지역 차원에서의 군사무기 이전의 네트워크는 1950년부터 2002년까지 몇몇 주요 행위자들에 의해 지배되어 오고 있다. 둘째, 이러한 몇몇 행위자들의 무기이전 네트워크 지배 경향은 국제체제 차원에서보다 아시아지역에서 미세하지만 더 강력히 이루어져 왔다. 셋째, 무기이전 네트워크의 주요 행위자 중에서 특 히 미국의 중심성이 현저하게 크게 나타난다. 넷째, 군사무기이전 네트워크는 국제관계의 주요 강대국 들 이외의 국가들의 지배성도 보이는데, 그 대표적 인 사례가 이탈리아와 체코슬로바키아이다. 국제관 계연구의 전통적 패러다임의 하나인 신현실주의, 더 구체적으로, 구조적 현실주의가 주로 강대국들 과 그들 간의 관계에 초점을 맞추어 왔던 데 비하 여, 새로운 네트워크 패러다임은 국제체제에 존재 하는 모든 구성원과 그들 간의 관계에 초점을 맞추고 있으며, 이러한 새로운 네트워크 관점에서 군사 무기 이전을 분석한 본 연구의 학문적 의의는 기존의 분석시각들로는 파악되기 어려운 군사무기 이전의 중요한 현상을 도출했다는 점이다. After introducing a network concept and a network analysis tool, this study analyzes military arms transfer networks focusing on network structure and core network states for the period of 1950-2002 using the SIPRI Arms Transfer Database. The main research question examined in this study is as follows: what are some distinctive structural characteristics and major actors of arms transfer networks in the international system and in the Asian region for the last 50 years? The social network analyses in this study show that military arms transfers networks have been dominated by some major actors (such as the U.S., the Soviet Union/Russia, China, the U.K., France, Italy, and Czechoslovakia), and the dominance of those major actors has been diminished since the end of the Cold War. Among those major actors in the arms transfers networks, the analysis shows that the U.S. has been the most important network actor, both in the system and in Asia, especially during the Cold War era. Unlike the previous theoretical paradigm of international relations (esp. structural realism) that focuses mainly on major powers and the relationships among those states, this study argues for the network perspective of international relations, focusing on all states (including both major and non-major states) and their interaction patterns in the system, and proves that this social network perspective presents a more complete picture of international phenomena such as international military arms transfers.

왕겨 알칼리 증해 흑액으로부터 실리카 석출 연구

김형민(Hyung Min Kim),김동성(Dong Sung Kim),성용주(Yong Joo Sung),박영석(Young Seok Park),서용교(Yong-Gyo Seo) 한국펄프·종이공학회 2017 펄프.종이技術 Vol.49 No.4

The effects of the pH conditions on the precipitation of silica in the black liquor of the rice husk alkine digestion were evaluated in this study. KOH and NaOH were applied for the rice husk alkaline digestion, and the black liquors originated from each alkaline digestion were characterized. Four pH conditions (pH 10, 9, 8, and 7) were applied for the precipitation of silica from the black liquor. The black liquor from the KOH digestion showed higher solid contents than that of the NaOH digestion, which resulted in the higher amount of the precipitated solid obtained from the KOH black liquor. The yield of silica was higher at the lower pH condition such as pH 8. However, the non-silica materials were also precipitated from the black liquor and the higher amount of non-silica materials were precipitated at the lower pH condition.

[특집 : 한방생약자원의 식품ㆍ생명산업적 이용] 한방자원을 이용한 알레르기질환 치료제 개발

김형민(Hyung-Min Kim) 한국식품영양과학회 2000 식품산업과 영양 Vol.5 No.3

열처리에 의한 왕겨의 특성 변화

김형민(Hyung Min Kim),성용주(Yong Joo Sung),박영석(Young Seok Park),신재철(Jea Chul Shin),서용교(Yong Kyo Seo) 한국펄프·종이공학회 2016 펄프.종이技術 Vol.48 No.6

The effects of heat treatment conditions on the properties of rice husk were evaluated in this study. The commercial products of the heat treated rice husk were also investigated in terms of the changes in the properties by the manufacturing methods such as the indirect rotary kiln method and the direct combustion method. The indirect rotary kiln treatment for the commercial product resulted in the lower carbonization and the lower absorption of methylene blue of the heat treated rice husk product than those of the direct heat treated rice husk product. In addition, the effect heat treatment was analyzed under two different conditions - by using muffle furnace at air atmosphere condition and by using tube furnace at nitrogen atmosphere condition - for comparative analysis. The rice husk treated in nitrogen condition showed less carbonation, less changes in pH and no significant changes in methylene blue absorption properties, compared to the rice husk treated in the air condition. The pH of the rice husk treated in the air condition changed from 3.5 at 300°C treatment to 9.5 at 500°C treatment. Also, the absorption capacity of the rice husk treated in the air condition was greatly improved as the treatment temperature increased.

문화요인이 군사분쟁에 미치는 영향에 관한 연구: 문명충돌론의 주장을 중심으로

김형민 ( Kim Hyung Min ) 단국대학교 분쟁해결연구소 2017 분쟁해결연구 Vol.15 No.2

본 연구는 상이한 문명 간 군사충돌 확대에 대한 헌팅턴의 이론적 논의를 계량적으로 검증하는 것을 목적으로 한다. 본 연구는 1945년부터 2001년까지 국가 간 발생하였던 군사충돌을 군사분쟁과 군사위기로 구분하여, 그 발발의 한 요인으로 문명, 종교, 인종, 언어로 대표되는 문화변수의 중요성을 강조하며 경험적으로 분석하였다. 본 연구의 분석결과는 국가 간 군사충돌 발발이 문명, 문화적 이질성에 기인한다는 헌팅턴의 문명충돌론 주장이 계량적으로 검증되지 않음을 보여준다. 국가 간 낮은 수준의 군사충돌인 군사분쟁과 높은 수준의 군사위기 발발과 관련하여, 상이한 문명 간 군사충돌 확대의 경향성은 헌팅턴의 주장과는 달리 검증되지 않으며 이러한 결과물은 냉전기와 탈냉전기 표본에서 유사하게 증거되고 있다. 또한, 본 연구는 다양한 군사분쟁, 군사위기 모델 간 비교분석의 결과, 문화요인과 군사충돌의 인과성을 고려한 본 연구의 분석모델이 기존연구에서 활용되었던 현실주의, 자유주의 시각 중심의 분쟁모델의 설명력(혹은, 군사분쟁 설명력)을 확대하는 결과물을 제공하고 있다. 변수 간 설명력의 비교분석 결과도 군사분쟁의 설명을 위해 본 연구에서 활용된 문화변수가 기존 현실주의, 자유주의 변수의 설명력에 근접하거나(예, 현실주의의 동맹관계, 자유주의의 공유된 민주주의), 오히려 능가하는(예, 세력균형, 경제적 상호의존) 결과물을 제공하고 있다. 학문적 연구에서 기존연구와의 비교를 강조하는 관점에서, 본 연구는 국가 간 군사 분쟁 원인에 대한 기존의 계량연구를 발전, 보완하는 학문적 성과를 제공하고 있다. The purpose of this paper is to empirically examine the effects of cultural factors on the likelihood of militarized disputes and crises. Using data from 1945~2001 and empirical methods with samples from the international system, this study finds that there is no empirical evidence of Huntington`s argument for the “clash of civilizations.” Cultural factors such as civilizational, religious, ethnic, and linguistic similarities among states in fact cause militarized disputes and crises. The evidence from the information criteria measures and nonparametric model discrimination statistics also shows that conflict models with cultural factors as an important determinant of military conflict statistically outperform or have greater explanatory power than models examined in previous studies on the topic. This study also finds that the impact of cultural factors on militarized conflicts is quite sizable compared to that of the determinants of realism and liberalism examined in previous empirical studies, and that the evidence from this study is applicable to both the international system and the Asian region both during and after the Cold War era.