대역확산 워터마킹 시스템의 채널용량 분석

김주찬(Joo-Chan Kim),배정남(Jung-Nam Bae),김진영(Jin-Young Kim) 한국통신학회 2010 韓國通信學會論文誌 Vol.35 No.5

상관도를 갖는 Nakagami 페이딩 전송로에서의 방송통신융합시스템의 용량

김주찬(Kim, Joo-Chan),김요철(Kim, Yo-Cheol),김진영(Kim, Jin-Young) 한국산학기술학회 2010 한국산학기술학회논문지 Vol.11 No.9

본 논문에서는 방송통신 융합시스템의 일환으로 기존에 구축되어 있는 방송 또는 통신망과 같은 back-bone 네트워크를 이용한 부가 서비스 시스템의 개념과 모델을 제시한다. 이를 위해 부가 정보가 무선 페이딩채널을 통하 여 얼마만큼의 신뢰성 있는 정보를 전송할 수 있는지를 알아보기 위해 채널용량 수식을 근사화 하여 유도한다. 유도 된 수식으로부터 채널 및 시스템 변수의 변화에 따른 채널용량의 변화를 확인한다. In this paper, we propose a concept and model of an additional service system as a kind of convergence system of broadcast and telecommunication. The proposed system use existing back-bone network such as broadcasting or communication networks. For this, we derive channel capacity formula as an approximated closed-form expression in order to show how many reliable additional data can be transmitted through wireless fading channel. From the derived formula, we confirm that the channel capacity is varied according to channel and system parameters.

레이어링을 사용한 3D 애니메이션 인간형 캐릭터의 감정 표현 방법 제안

김주찬(Joo-Chan Kim),석혜정(Hae-Jung Suk) 한국콘텐츠학회 2015 한국콘텐츠학회논문지 Vol.15 No.5

국내 게임 업계에서 비디오 게임 시장은 좁아지고 있고 그에 따른 자본과 인력 또한 줄어들고 있다. 이런 열악한 환경과 전문 기술력에서 나오는 콘텐츠의 질적 향상을 위해서는 전문 개발자가 아니더라도 보다 사실적이고 질적으로 뛰어난 콘텐츠를 제작하는 데 도움이 되는 연구가 필요하다. 본 연구에서는 대중과 평론가들에게서 캐릭터 감정 표현 및 전달이 잘 되었다고 평가받는 해외 전문 제작사의 애니메이션들을 선정하였다. 그리고 해당 애니메이션의 스크립트에서 Ekman의 6가지 기본 감정과 그레마스의 역동적 서술어를 이용해 캐릭터가 감정을 표현하는 행동을 선별하여 분석 및 분류하였다. 또한, 게임 제작 프로그램 유니티의 블렌딩 작업에 사용되는 ‘애니메이션 레이어’를 이용해서 캐릭터가 특정 감정을 표현하려 할 때 필요로 하는 행동들을 분석하고, 이 데이터를 사용해서 감정을 표현하는 행동을 제작해주는 프로그램의 구상안을 제안한다. In domestic game market, the video game market is getting smaller and also decreasing funds and high level developers. So we need the software that can help us to make more realistic and high quality contents by non-expert developer in poor environments. In this paper, we selected global studio’s animations which were scored good evaluation by public and critics as a well-made emotional expression that can convey the emotion properly. We selected movements that express emotions from the animation scripts by using Ekman’s 6 basic emotions and Greimas’ dynamic predicate, and then we had analyzed and categorized with the data. We also analyzed the movements for which data we needed to create specific movements to express emotions by using ‘Animation Layer’ that used in Unitys blending process. And suggest concept of the program that to create the emotional expression movements by using those analyzed data.

탈북민 전문상담사들의 역량강화를 위한 수퍼비전 연구

김주찬(Kim, Joo Chan) 연세대학교 상담코칭지원센터 2016 연세상담코칭연구 Vol.6 No.-

남성 노인의 순발력, 유연성에 따른 대사증후군의 유병률과 임계값에 관한 연구

김용환 ( Young Hwan Kim ),송성일 ( Sung Ll Song ),이혜영 ( Hye Young Lee ),지혜미 ( Hae Mi Jee ),김주찬 ( Joo Chan Kim ),이한준 ( Han Joon Lee ),고덕한 ( Duk Han Ko ),김소정 ( So Jung Kim ),김신애 ( Shin Ae Kim ),정진욱 ( Jin Wook 대한스포츠의학회 2010 대한스포츠의학회지 Vol.28 No.2

The purpose of the study was to find out the age-adjusted odds ratio of the metabolic syndrome and the associated cut-off values of the physical fitnessfactors of the elderly males in their 60s and 70s. 477 participants were tested for the cardiorespiratory fitness (VO2max), power, flexibility as well as blood battery and abdominal circumference for the metabolic syndrome status. As a result, 32.2% of the participants had metabolic syndrome with the associated cut-off values of the power and flexibility as 29.0 cm (areas under curve [AUC]: 0.57, p=0.029) and 0.6 cm (AUC: 0.54, p=0.028), respectively. The cardiorespiratory fitness showed no significant difference prevalence rate between groups. The prevalence rate was calculated by dividing the participants into high and low groups. The metabolic syndrome prevalence rate for the low power group was 1.63 (p<0.030) and low flexibility group was 2.01 (p<0.002). The cardiovascular fitness showed no significant prevalence rate.

연구발표 초록 ( 재료 (Ⅲ) ) : 칼로리메트릭 프로브를 이용한 열플라즈마의 온도와 속도 측정

김주찬 (학),박동화 (정) ( Joo Chan Kim,Dong Wha Park ) 한국화학공학회 1991 추계학술발표회 Vol.- No.-

지역 특색 자원을 활용한 장충동 골목길 재생 방안 - 장충2가동 69일원의 특색 분석 및 활용 방안 -

김경민(Kim, Kyung-Min),김주찬(Kim, Joo-Chan),이소연(Lee, So-Yeon),조용훈(Cho, Yong-Hoon),김대익(Kim, Dae-ik) 대한건축학회 2019 대한건축학회 학술발표대회 논문집 Vol.39 No.2

The purpose of this study is to utilize the characteristic resources from existing villages to induce repairing. By actively using the existing resources to create profits in the village, and by solving outdated problems and insufficiencies, the residents are presented with solutions that can make their lives more pleasant. The Negative Heritage of Japanese governing period can be used as a guest house, a unique characteristic of Jangchung 2-ga, to provide new homes for existing residents to promote co-prosperity. In preparation for the influx of outside tourists, the government also can plan to provide an information exchange space, and to create an environment where residents can gather to draw a blueprint and actively develop the village.

국방 물류 계층별 물류센터 효율성분석: 육군 물류 계층을 중심으로

김광욱 ( Kwangwuk Kim ),김화중 ( Hwa-joong Kim ),장진명 ( Jin-myeong Jang ),김주찬 ( Joo-chan Kim ) 한국로지스틱스학회 2021 로지스틱스연구 Vol.29 No.5

The military has continued to make efforts to innovate its military logistics and has achieved tangible results such as establishing a military logistics system centered on users and speed. However, despite these efforts, scientific and empirical research on the hierarchical logistics system using the military logistics data, which could be a key for improvement, remains lacking. Under these circumstances, this study analyzes the efficiency of logistics centers by military hierarchy for the supply group under the logistic support command, the supply battalion under the logistic support brigade, and the supply transportation battalion under the division (supply and transportation battalion). The DMU (Decision Making Unit) was divided into military hierarchy, and standard delivery destinations were selected as output variables, and warehouse space, input personnel, and input expenses as input variables for the efficiency analysis in operation and finance sectors. Based on this, this study conducted efficiency comparison by one to one variable and data envelopment analysis (DEA), and it measured the value of the DEA slack variable to compare and analyze characteristics of logistics centers by hierarchy. Then, this study derived improvement issues and implications for each DMU.

북한이탈주민의 범죄피해경험에 관한 현상학적 연구

신현주 ( Hyun Joo Shin ),김미숙 ( Mi Sook Kim ),김주찬 ( Ju Chan Kim ) 연세대학교 북한연구원 2013 통일연구 Vol.17 No.2

북한이탈주민이 남한 사회에 정착하는 과정에서 발생한 범죄피해경험은 남한 사회 적응과정에서 발생할 수 있는 다양한 측면을 내포하고 있기 때문에 절대로 간과 할 수 없는 연구 영역이라고 할 수 있다. 이 연구에서는 북한이탈주민이 남한 사회에 정착하면서 경험한 범죄피해의 본질을 밝히는데 목적이 있다. 이를 위해 남한에 거주하면서 범죄피해를 경험한 6명의 북한이탈주민을 대상으로 심층면접을 실시하였고, Colaizzi의 현상학적 연구방법이 적용되었다. 분석결과, 범죄피해를 경험한 북한이탈주민들은 사회적으로 배제된 삶을 인식하고 있었다. 그러나 한편으로는 범죄피해경험을 긍정적으로 극복하여 새로운 터전인 남한에서 정착하여 살아가고 싶은 희망을 발견할 수 있었다. 그들이 경험한 범죄피해경험의 주제묶음(Theme clusters)은 6가지로 나타났으며, 이는 다시 3개로 범주화되었다. 주제묶음은 ‘남한사회에 대한 충격’, ‘모든 것이 내 탓’, ‘고통스러움’, ‘마음속에 벽으로 쌓아두고 살아감’, ‘감사’, ‘희망’이다. 3개의 범주는 ‘낯설고 서툰 이방인’, ‘위기 속에 또 위기’, ‘희망적인 삶’으로 나타났다. 연구결과 북한이탈주민들이 경험한 범죄피해가 반드시 이들의 삶에 부정적인 영향을 미친것은 아니라는 것을 알 수 있었다. 오히려 범죄피해경험을 통해 남한사회를 배우게 되었고 또 다른 피해자가 양산되지 않기를 바라고 있었다. 이러한 연구결과를 토대로 범죄피해자 지원 및 보호 정책에 대해 제언하고자 하였다. Not many studies have investigated crime victimization that took place among North Korean refugees during their settlement in South Korea. It must not be overlooked any longer since they are likely to be victimized in various ways while they try to adapt into South Korean society. The purpose of this study is to examine the nature of the crime victimization of North Korean refugees during their settlement in South Korean society. The subjects in this study are six selected North Korean refugees who resided in South Korea and became victims of crime. They were interviewed in depth, and Colaizzi`s phenomenological research method was utilized. As a result of analyzing the collected data, it turns out that the North Korean defectors found themselves left out from others. On the other hand, they hoped to tide over their difficulties in order to settle down in South Korea, which was a new place for them. Their crime-victimization experiences can be classified into six theme clusters, and the six theme clusters are again categorized into three. The six theme clusters are ‘shock about South Korean society,’ ‘blaming oneself for everything,’ ‘pain,’ ‘shutting oneself off from others,’ ‘gratitude,’ and ‘hope.’ The three categories are ‘being regarded as clumsy strangers,’ ‘repeated crisis,’ and ‘hopeful life.’ In fact, however, the North Korean refugees weren`t always adversely affected by their victimization experiences. Rather, they learned about the experiences from North Korean society and hoped there would be no more victims. Though these findings of the study, how to offer assistance for victims of crime was discussed, and some suggestions were made about criminal policy.

한국남성의 복부 비만과 건강체력이 동맥경화도에 미치는 영향

김용환 ( Yong Hwan Kim ),지혜미 ( Hae Mi Jee ),송성일 ( Sung Il Song ),김주찬 ( Joo Chan Kim ),고덕한 ( Duk Han Ko ),진영수 ( Young Soo Jin ) 대한스포츠의학회 2012 대한스포츠의학회지 Vol.30 No.1

The purpose of this study was to find out the relationship between waist circumference, muscular strength, flexibility, and brachial-ankle pulse wave velocity (baPWV). Furthermore, the cut-off values of the physical fitness factors according to the baPWV were also calculated. The study was derived with total of 1,562 males (1,116 middle-aged and 446 old-aged). They were tested participant`s baPWV, waist circumference, cardiopulmonary fitness, grip strength and flexibility. The results of this study is that the baPWV of the middle-aged men did not show significant changes in relationship with the waist circumference and physical fitness factors. The old-aged group with normal abdominal fat and high physical fitness level (group 4) showed significant baPWV values in comparison to those with waist circumference and low physical fitness levels (group 1); cardiorespiratory fitness p=0.026, grip strength p=0.000, flexibility p=0.000. The cut-off values of the physical fitness such as cardiorespiratory fitness, grip strength, flexibility according to the baPWV were 31.2 mL/kg/min (area under curve [AUC], 0.692; p=0.027), 37.0 kg (AUC, 0.588; p=0.014), and 1.0 cm (AUC, 0.589; p=0.014), respectively. In conclusion, these results demonstrate that waist circumference, cardiorespiratory fitness as well as muscular strength and flexibility effect inversely on arterial stiffness.