칡소 송아지의 생후 2개월간 혈액화학치 양상에 관한 연구

조광현 ( Kwang-hyun Cho ),박용수 ( Yong-soo Park ),김성국 ( Seong-guk Kim ),도재철 ( Jae-cheul Do ),어경연 ( Kyung-yeon Eo ),곽동미 ( Dongmi Kwak ),권오덕 ( Oh-deog Kwon ) 한국동물위생학회 2016 한국동물위생학회지 (KOJVS) Vol.39 No.3

The present study was undertaken to clarify the changes in blood chemical values of indigenous Korean striped calves according to age. Blood samples were collected from 15 calves (8 females and 7 males) reared at the Gyeongsangbukdo Livestock Research Institute and the levels of various chemicals in se-rum were analyzed. The mean total protein, albumin and globulin concentration in calves increased from 2 weeks after birth, and the levels in females were higher than those in males at 8 weeks after birth. The mean glucose concentration increased significantly at 2 weeks after birth. The mean blood urea ni-trogen concentration increased from 2 weeks after birth, whereas the mean creatinine concentration de-creased significantly from 2 weeks after birth. The mean uric acid concentration increased gradually from 2 weeks after birth. The mean glutamic oxaloacetic transaminase and glutamic pyruvic trans-aminase concentration increased significantly from 2 weeks after birth. The mean total bilirubin concen-tration tended to decrease from 2 weeks after birth. The mean triglyceride, total cholesterol and high density lipoprotein cholesterol concentration increased significantly from 2 weeks after birth. In con-clusion, the data obtained from this study may be valuable as a standard for interpreting results of bio-chemical analyses in indigenous Korean striped calves.

키워드 네트워크 분석을 활용한 국내 설교학 분야 연구동향 연구

조광현 ( Cho Kwang Hyun ),김현숙 ( Kim Hyunsook ) 한국복음주의신학회 2022 성경과신학 Vol.102 No.-

This study examines the domestic research trends on homiletics by keyword network analysis that has not been attempted before in the field of homiletics. To achieve the objective, 1613 author keywords were extracted from 533 articles on homiletics published after the year 2000s from RISS(Research Information Sharing Service) and the keywords were analyzed using the NetMiner4 program. As a result of the frequency analysis, ‘Expository Preaching’, ‘The New Homiletic’, ‘Preacher’, ‘Rhetoric’, ‘Theology of Preaching’, ‘Listeners’, and ‘Worship’ all appeared more than 20 times, which is a high frequency of appearance. In the centrality analysis, ‘Expository Preaching’, ‘The New Homiletic’, ‘Rhetoric’, ‘Preacher’, ‘Narrative Preaching’, ‘Application’, ‘Korean Churches’, ‘Listeners’, ‘the Word of God’, and “Reformed Preaching” ranked high. ‘Expository Preaching’, ‘Preacher’, ‘Rhetoric’, ‘Listeners’, ‘Pastoral Ministry’, ‘the New Homiletic’, ‘the Word of God’, ‘Theology of Preaching’, ‘Korean churches’, and ‘Narrative Preaching’ show high values of betweenness centrality. The cohesion analysis shows that the network is classified into six sub-groups-G1: Delivery of Preaching, G2: Theology of Preaching, G3: Context of Preaching, G4: Expository Preaching and the New Homiletic, G5: Components of Preaching, G6: Rhetoric.

안면 및 두피에 발생한 혈관육종

조광현(Kwang Hyun Cho),강승주(Seung Joo Kang),이유신(Yoo Shin Lee),김철우(Chul Woo Kim) 대한피부과학회 1986 대한피부과학회지 Vol.24 No.6

We report a case of angiosarcoma of the face and scalp in a 76-year-old man. Immunochemical staining with factor 8-related antigen and ultrastructural find ings confirm that this tumor was origined from endothelium. The patient had a good initial response to treatment with radiotherapy.

사과 ‘홍로’의 착과 수준별 과실품질, 수량 및 경제성

조광현(Kwang-Hyun Cho),윤태명(Tae-Myung Yoon) 한국원예학회HST 2006 원예과학기술지 Vol.24 No.2

황색 조갑 증후군

조광현(Kwang Hyun Cho),이주홍(Joo Heung Ree),이유신(Yoo Shin Lee),한성구(Sung Koo Han) 대한피부과학회 1988 대한피부과학회지 Vol.26 No.4

We report a 58 year old man who complained that his nails didn't grow for a year and developed yellowish discoloration. On physical examination his nails showed yellow greenish discoloration, increased corvexity, loss of lunulae and cuticles. C]iest X ray revealed atelectasis on right lower lung field and bronchiectasis on left lower lung field. Mild restrictive pattern was observed in pulmoniry function test. We gave him 800IU of Vitamin E claily for 3 months, but rio remarkable changes have been observed as yet..

U-City 건설을 위한 무선랜 기반 무선망과 WiBro 기반 무선망의 경제성 분석

조광현(Kwang-hyun Cho),김동호(Dong Ho Kim),이정륜(Jong-ryun Lee),김동민(Dong-min Kim),최순영(Soon-young Choi) 한국통신학회 2011 한국통신학회논문지 Vol.36 No.3B

본 논문은 U-City (Ubiquitous City)의 무선망을 구축하는데 있어 WLAN 기반의 무선망과 WiBro 기반의 무선망을 고려하고 각 방식을 통해 구축할 경우 소요되는 비용과 얻을 수 있는 편익을 분석하여 경제적 효율성이 높은 무선망 방식을 선정하는 방법론을 제시하였다. 비용 분석을 위한 기초 데이터 획득을 위해 셀 설계 및 커버리지 분석을 수행하였으며, WiFi와 WiBro의 기술적 특징을 바탕으로 편익 분석을 수행하였다. 비용-편익 분석 결과 WiBro 무선망의 손익분기점이 WiFi 무선망에 비해 1.75년 빨리 도달하며, NPV(Net Present Value)도 114억원 가량 큰 것으로 나타나 경제적으로 효율적인 무선망 방식으로 분석되었다. In this paper, we made cost & benefit analyses of both WLAN-based and WiBro-based wireless networks for U-City(Ubiquitous City). We obtained basic data for cost analysis such as the number of network equipments through cell design and cell-coverage analysis. Also we made benefit analysis considering technical features of WLAN and WiBro networks. By cost & benefit analysis, we have reached conclusions that WiBro-based wireless network has earlier BEP(Break-Even Point) and larger NPV(Net Present Value) than WLAN-based network, and that WiBro is more efficient wireless network for U-City.

통신방송의 융합형 멀티미디어 서비스를 지원하는 IPMG(IP Media Gateway) 구현

조광현(Kwang-hyun Cho),김현철(Hyun-cheol Kim),조력연(Yok-yon Cho),박득인(Deuk-in Park),원헌(Heon Won),안광용(Kwang-yong Ahn) 한국통신학회 2008 한국통신학회논문지 Vol.33 No.2B

국내에서는 디지털 방송을 활성화하기 위하여 2012년에 아날로그 방송을 중단키로 했다. 그리고 최근 인터넷망을 통한 IP(Internet Protocol)는 지상파, 위성, 케이블에 이어 디지털 방송을 위한 네 번째 미디어로 부각되며 통신과 방송의 중요한 매개체로 등장하고 있다. 그러나 현재 지상파, 위성, 케이블, 인터넷 등의 매체를 통한 디지털 방송을 서비스하고 이용하기에는 많은 어려움이 있다. 아날로그방식의 송수신 시스템을 모두 디지털방식으로 교체해야 하며 지상파, 위성, 케이블과 인터넷을 통한 미디어를 수용하기 위해서는 여러 대의 셋톱박스를 설치해야 한다. 뿐만 아니라 채널을 변경할 때 지연되는 시간에 관한 문제를 해결해야 하고 PVR(Personal Video Recorder), 네트워크CCTV 등 통신과 방송의 융합 형 서비스를 지원해야 한다. IPMG변조기는 이러한 문제들을 해결해준다. 본 논문에서는 다양한 미디어를 통한 방송신호를 수신하고 변조하여 아날로그와 디지털 방송신호를 동시에 송출하고, 네트워크PVR 서비스를 제공하는 IPMG변조기를 구현한다. 그리고 성능을 분석한다. In order to activate the digital broadcasting in Korea, the analog broadcasting will have been closed down until 2012. Recently IPTV(Internet Protocol TV) thorough internet has been regarded as the fourth media following the terrestrial, satellite, and cable for the digital broad casting. And it has been the important medium for the communication and broadcasting system. However It is not easy to replace the entire broadcasting system with the digital - type broadcasting system. For the digital broadcasting, we should replace all TV sets, install the settop-boxes to receive the various IP media, solve problems about time delaying when changing channels, and support communication and broadcasting consolidation service for such as PVR and Network CCTV. IPMG is the digital converter that is able to solve these problems. In this paper, I'll develop and analyze IPMG converter's performance which sends and receives both the analogue and digital broadcasting signals through various media gives the Network PVR service.

폐 난연성 EPS의 혼합조건에 따른 재생골재 블록의 물성에 관한 실험적 연구

조광현 ( Kwang Hyun Cho ),김지현 ( Ji Hyun Kim ),정철우 ( Chul Woo Chung ),이재용 ( Jae Yong Lee ),이수용 ( Soo Yong Lee ) 한국건축시공학회 2013 한국건축시공학회 학술발표대회 논문집 Vol.13 No.2

Based on the Fire Service Act of mandatory provision, new buildings are strictly forced to use fire protection materials. Flame resistant EPS is one of those materials. Unlike conventional EPS that can be fused to make EPS ingot and be recycled for various purposes, flame resistant EPS waste cannot be recycled due to the presence of protective coating that is applied to increase the fire protection properties of EPS. A suitable alternative that can process large amount of flame resistant EPS wastes needs to be developed, and one of the possible alternative is to use them as construction materials. In this research, experiments were designed to observe whether the flame resistant EPS wastes can be utilized as partial replacements of fine aggregates in cement mortar. The replacement ratio of waste EPS was varied, and its effect on compressive strength and absorption capacity was investigated. According to the experimental results, both compressive strength and absorption capacity met the Korean Standard specification for cement bricks and blocks, indicating that flame resistant EPS wastes can be used for construction purposes.

한국 청년 세대의 현실 인식을 반영한 청년 설교 주제 연구: <청년삶실태조사> 데이터 중심으로

조광현(Kwang Hyun Cho),김태영(Taeyoung Kim) 한국자료분석학회 2025 Journal of the Korean Data Analysis Society Vol.27 No.6

Today, Korean society is experiencing rapid socioeconomic change and a diversification of values, profoundly impacting the lives and identity formation of young people. Consequently, young people are increasingly leaving the church and experiencing religious alienation, and sermons are being re-evaluated as a strategic means of engaging with them. This study, commissioned by the Office for Government Policy Coordination and conducted by the Korea Institute for Health and Social Affairs, analyzes data from the Youth Life Survey (National Statistics No. 170002) to comprehensively analyze the social conditions, emotional needs, and conflict patterns of young people. In this study, we examined whether there were differences in response patterns by age group (ages of 19-24, 25-29, or 30-34), gender, and region (metropolitan or non-metropolitan area) for items belonging to ‘support group,’ ‘isolation/withdrawn,’ and ‘current/future awareness.’ Based on this analysis, we identify sermon topics and approaches that are highly relevant to young people. Beyond the theory- and text-centric approach of traditional homiletics, we propose a practical theological direction: audience analysis-based sermon themes. This study will help preachers understand and reflect the specific realities and inner needs of young people in their sermons, thereby contributing substantially to the revitalization of youth ministry and faith education in churches.

불교사상 조형원리 재구현을 통한 도심사찰 건축유형 제안

조광현(Cho, Kwang-Hyun),김주원(Kim, Ju-Won) 대한건축학회 2013 대한건축학회 학술발표대회 논문집 Vol.33 No.2