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한국 종자산업의 현황과 경제적 파급효과 분석 - 산업연관분석을 중심으로 -
김진헌 ( Kim Jin-heon ),유찬주 ( Yu Chan-ju ) 한국식품유통학회 2024 한국식품유통학회 학술대회 Vol.2024 No.0
본 연구에서는 종자산업 현황분석 및 산업연관분석(Input-Output Analysis) 모형을 활용하여 2020년을 기준으로 종자산업이 우리나라 국민경제와 농산업에 미치는 경제적 파급효과를 분석하고, 산업적 위치를 도출하여 정부의 정책 수립에 도움을 주고자 하였다. 국내 종자산업 시장규모는 ’22년 기준 8,754억 원으로 전세계 종자시장에 차지하는 비중은 1~2% 수준이었다. 종자 판매액은 ’22년 기준 6,757억 원이고 채소 종자가 전체의 60% 이상을 차지하고 있다. 그리고 2,000여개 종자기업 중 매출액 5억 미만의 기업이 90% 이상을 차지하고 있어 영세성이 심각하다. 기업당 육종인력은 0.8명이고, 생명공학 인력은 0.2명으로 전문인력이 매우 부족한 상황이다. 종자기업의 R&D 투자 금액은 2017년 821억 원이었지만 2020년에 695억 원으로 2017년 대비 15.3% 감소하였다. 산업연관분석 결과 국민경제와 농산업에서 생산유발효과, 부가가치유발효과, 소득유발효과가 낮은 것으로 나타났다. 타 산업부문의 종자에 대한 수요가 매우 낮았고, 종자생산을 위해 타 산업을 중간재로 사용하는 순위도 낮은 것으로 나타났다. 부가가치 유발이나 소득유발도 국민경제 34개 부문 중 30위 이하였고, 농산업 14개 부분 중 8위 이하를 차지하였다. 하지만 노동유발계수는 가장 높게 도출되어 매우 노동집약적인 산업이고, 이는 산업현장에 첨단 설비나 시스템 도입 등이 부족하여 노동생산성을 높이지 못하고 있음을 알 수 있었다. 종자산업을 외생화(exogenous)하여 분석한 결과, 종자 1억 생산 시 국민경제 전체적으로 2억 2,600만원의 생산유발과 9,500만원의 부가가치를 유발하였다. 또한 종자산업에 10억 원 투입 시 타 산업에 약 7.5명의 고용이 유발되었다. 한편 종자산업은 연구개발 투자대비 약 1.6배의 경제적 파급효과가 발생하는 것으로 분석되었다.
복합 건출물의 가변적 경로 제공을 위한 벽체 유형 및 ICT 요소 연구
김찬주(Kim, Chan-Ju),공은미(Kong, Eun-Mi) 대한건축학회 2021 대한건축학회 학술발표대회 논문집 Vol.41 No.2
The purpose of this study is to propose variable wall types and basic elements of ICT for evacuation paths for mixed-use buildings. To this end, the state of the wall used in the mixed-use building is surveyed, a physical transformation method is presented, and ICT elements for this are figure out. In conclusion, this study shows a basis for a development of ’Convertible Wall Modules’ by using smart hinge which will be developed following research.
축우의 유행형 (지방병성) 백혈병에 관한 연구 I. 한 유우군의 우백혈병 바이러스 항체와 혈중 임파구의 변동에 관하여
김찬주,손제영,고기환,Kim, Chan-ju,Son, Jae-young,Ko, Ki-whan 대한수의학회 1990 大韓獸醫學會誌 Vol.30 No.3
To investigate bovine leukosis virus (BLV) infection in the cattle rearing in a dairy farm where a case of bovine lymphosarcoma had been identified several years ago, the 196 Holstein cattle including newborn calves to 12 years of age were tested. The BLV antibody test and peripheral lymphocyte count for bovine leukosis were carried out by the immunodiffusion (ID) test and Bendixen's Kep. These tests were performed 2 to 4 times at the interval of 3 to 5 months. The observed results were as follows: 1. The positive rates of BLV-antibody in the 1st, the 2nd, the 3rd and the 4th tests were 23.3%, 28.1%, 49.0% and 55.7%, respectively. The conversion rates from negative to positive in the 2nd, the 3rd and the 4th tests were 8.9%, 41.4%, and 20.0%, respectively. Results showed that the highest conversion rate was observed at the 3rd test which was conducted after winter. The highest positive rate by ID test were observed in 4 year old cattle in the 1st and 2nd tests, and in 2 year old herd in the 3rd and 4th tests. 2. In hematological test by Bendixen's Key, the positive and suspicious rates in the 1st, the 2nd, the 3rd and the 4th tests were 5.8 and 7.8%, 8.3 and 6.6%, 8.7 and 10.1%, 10.8 and 19.6% respectively. Results showed that the positive and. suspicious rates increased in course of time. 3. 70 to 100% of the positive cattle in hematological test were positive for BLV-antibody test. All of 13 cattle with persistent lymphocytosis (PL) were also positive for BLV-antibody, indicating the high relationship between PL and BLV-antibody. 4. The number of total leukocytes and absolute lymphocytes in the BLV-antibody positive cattle appeared significantly higher than those of the negative cattle. The markedly increased cell counts were observed in the cattle over one year old. 5. The mean of total leukocytes and absolute lymphocytes in the negative cattle for BLV-antibody increased slightly after sero-conversion into positive. 6. In the clinical examinations during experimental periods, none of the 72 positive cattle for BLV-antibody showed any lesions for bovine leukosis.
축우의 유행형 (지방병성) 백혈병에 관한 연구 II. 한 유우군에서 출생한 송아지에 대한 우백혈병 바이러스 항체 검사
김찬주,손제영,고기환,Kim, Chan-ju,Son, Jae-young,Ko, Ki-whan 대한수의학회 1990 大韓獸醫學會誌 Vol.30 No.3
Total 51 calves born from both 28 seropositive and 23 seronegative dams were subjected to study both prenatal and postnatal infections of bovine leukemia virus (BLV), and the duration of passive colostral antibody by means of immunodiffusion (ID) test. All calves were tested for precolostral and postcolostral periods by 16 months of age. The results were as follows: 1. Of 28 precolostral sera of the calves born from infected dams, one appeared positive, indicating in utero BLV infection from the dam. 2. BLV-antibody test for the postcolostral sera of the calves born from seropositive or seronegative dams showed that the colostral antibody of the calves disappeared from 2 to 6 months of age, and the increase of the number of seropositive calves initiated from 3 to 4 months of age indicated postnatal infection.
초등학교 배치계획의 공간구성적 특성과 공간구조적 특성 비교 연구
김찬주(Kim Chan-Ju),김영욱(Kim Young-Ook) 대한건축학회 2008 대한건축학회논문집 Vol.24 No.3
This research aims to investigate the functional composition and spatial structure of planning method on elementary school and to present the planning method for it. 40 schematic designs of Elementary Schools are analyzed. Two methods are used for investigation. First, spatial composition which has been intuitively used by architects is examined about the relations between function and mass. Second, J-graph analysis is adopted from space syntax methods to analyze spatial configuration. The J-graph analysis shows the degree of spatial hierarchy and of control among adjacent space in the network of buildings and space. The research findings are, firstly, the buildings and spaces classified by their function have characteristic value by spatial structure analysis; secondly, the planning types made same functional composition have another spatial hierarchy. This research suggests that the spatial structure method is needed to complement on the existing functional composition method on planning of elementary schools.
김찬주(Kim Chan-Ju) 대한건축학회 2006 대한건축학회논문집 Vol.22 No.3
The purpose of this study is to analyze the spatial configuration of the complex building considering the degree of circulation quantitatively. For this study, new methodology of spatial configuration, Spatial Configuration Graph of Circulation(SCGC) is being used. Especially, it is focused by the degree of circulation quantitatively, analyzed by the elements of circulation and described by the degree of connection, the control value, and the integration. Among the complex buildings, the Central City in Seoul is chosen. It has many facilities and includes a department store, a hotel, and retail shops etc. The whole complex building and 17 parts of these facilities are analyzed by SCGC. The conclusions from this study are as follows: ⑴ By the degree of connection, some parts are closer than others. (2) By the control value, some parts have directivity to outside and others have inside-dependence. (3) By integration, it finds quantitative degree between whole building and its parts. And by comparing the mean value these parts are divided into what is more concentrated or what is not.
개량형 토종꿀벌 (Apis cerana) 벌통의 유형별 온ㆍ습도와 무게변화 비교
이찬주(Chan-Ju Lee),홍영희(Young-Hee Hong),이명렬(Myeong-lyeol Lee),유철형(Cheol-Hyeong Ryu),김순일(Soon-Il Kim) 한국양봉학회 2020 韓國養蜂學會誌 Vol.35 No.1
The questionnaire survey for Apis cerana beekeepers and professionals on improved native bee hives was carried out and we compared the temperature, relative humidity (RH), and weight changes of 4 improved hives (Chungju, Miryang, Hanam, and Suwon) from May 1, 2019 to January 31, 2020. Beekeepers need vertical feeder, hive stand, entrance block, and separating panel as hive accessory devices. The average temperatures within brood area were kept constantly (31.3~35.1°C) and the low daily variances of temperature (≤1°C) in Chungju hive among tested hives were observed. The daily temperature variances in the separated space and on the top of winter cluster were not different among 4 hives. In correlation between the temperature of brood area and the number of combs, Chungju hive showed the highest correlation (80.4%) and between the temperature on top of winter clusters and outside temperature, 4 hives showed high positive correlation (76.8~87.1%). RH of brood area (45~60%) in all hives were kept relatively low and constant compared to the outside RH (60~85%). The stablest RH on the top of winter cluster was observed in Suwon hives (65~75%) The highest cumulative weight increase among hives and the high positive correlation (65~67%) between the change of cumulative hive weight and combs number of hives were shown in the Miryang and Chungju. Based on these results, A. cerana bees are able to manage constant temperature and RH within hives area for their colony life, which also effected by the types of hive.