가리봉 ( 강원 ) 의 식물상 및 보존대책

김윤식,정규영,강명숙,전의식 ( Yun Shik Kim,Gyu Young Chung,Myoung Suk Kang,Eui Shik Jeon ) 한국환경생물학회 1994 환경생물 : 환경생물학회지 Vol.12 No.2

The flora of Kari-bong (1518.5m) was investigated to compare the flora of Mt. Sorak National Park, located close by this area. The vascular plants, collected from May, 1989 to October, 1992, were consisted of a total 652 taxa; 96 families, 348 genera, 569 species, 2 subspecies, 76 varieties and 5 forms. Among them, 554 taxa (85% of total taxa) were distributed in Mt. Sorak National Park. The Korean endemic plants of this area were 37 taxa, the rare and endangered plants were 27 taxa, the special wild plants designating by Environmental Agency were 12 taxa and the alpine plants were 34 taxa. Because many plants, being necessary to conserve, are distributed, Kari-bong should be include into Mt. Sorak National Park, but if development is indespensable, destruction of natrural ecosystem must be minimized.

곤충산업의 법적 지위에 대한 연구

김윤식,박정규,김태영,최종우,Kim, Yun-Shik,Park, Chung Gyoo,Kim, Taeyoung,Choi, Jong Woo 한국응용곤충학회 2018 한국응용곤충학회지 Vol.57 No.4

한국의 곤충 산업은 2010 년부터 "곤충 산업 육성 및 지원에 관한 법률"에 의해 지원을 받았다. 이 법에 의거해 곤충을 사육하는 사람도 '농업인'으로 자격이 있다. 그러나 곤충 산업은 '농업' 및 '농업인', '농산물'과 같은 모든 개념을 정의하는 "농업 농촌 및 식품산업 기본법"에 포함되지 않는다. 법적으로 엄격하게 말하면, 곤충 산업이 농업에 포함되지 않는다는 논쟁이 제기 될 때마다 곤충 산업을 지지할 방법이 없기 때문에 곤충을 사육하는 사람들은 모든 농업 지원과 정부의 보조금을 받을 법적 근거가 부족하다. 따라서 관련 법규를 개정하여 곤충 산업의 법적 지위를 명확히 할 필요가 있다. The insect industry in Korea has been supported by the Act of Fostering and Supporting Insect Industry since 2010. Based on the Act, insect breeders are entitled as farmers. However, the insect industry is not included in the Fundamental Act of Agriculture, Rural Community and Food Industry which defines all concepts, such as agriculture, farmers, and agricultural products. Legally and strictly speaking, there is no method to defense the insect industry when an argument is raised that insect industry is not included into agriculture, so persons who breed insects are not eligible for all agricultural supports and subsidies of the government. Thus, it is necessary to clear the legal status of insect industry by revising the related laws and regulations.

국내설계기준과 피복두께를 고려한 RC 구조물의 탄산화 내구수명의 변동성

김윤식 ( Yun-shik Kim ),권성준 ( Seung-jun Kwon ) 한국구조물진단유지관리공학회 2021 한국구조물진단유지관리공학회 논문집 Vol.25 No.5

본 연구에서는 탄산화에 노출된 하부 콘크리트 구조물을 대상으로, 실태조사 결과와 국내 시방서를 고려하여 결정론 및 확률론적 방법에 따른 내구수명을 도출하였다. 또한 변동계수의 변화에 따른 내구수명의 변화와 결정론적 해석 결과와 비슷한 결과를 제시하는 신뢰도 지수를 고찰하였다. 문헌조사 결과 도심지 하부 구조물의 피복두께의 평균은 70.0 ~ 90.0 mm였으며, 변동계수는 0.2 수준으로 조사되었다. 목표 내구수명 파괴확률을 10.0 %로 설정한 확률론적 내구수명 해석 방법의 경우 피복두께가 70 mm일 때 피복두께 변동계수 0.05, 0.1, 0.2에 해당하는 내구수명은 137년, 123년, 91년이 도출되었으며 피복두께가 80 mm인 경우 내구수명은 각각 179년, 161년, 120년으로 도출되었다. 결정론적 내구수명 평가와 동일한 수준의 신뢰도 지수를 평가하였는데 피복두께가 70 mm일 때 1.66 ~ 3.43 수준으로, 피복두께가 80 mm일 때 1.61 ~ 3.24 수준으로 평가되었다. 결정론적인 방법에서는 다양한 품질 및 국부적인 환경계수가 크게 고려되어 있는데, 이에 따라 내구수명이 크게 변화하므로 환경 및 설계인자의 변동성을 고려한 탄산화 설계변수의 정의가 필요하다. In this paper, service life for RC(Reinforced Concrete) substructure subjective to carbonation was evaluated through deterministic and probabilistic method considering field investigation data and Design Code(KDS 14 20 40). Furthermore changes in service life with increasing COV(Coefficient of Variation) and equivalent safety index meeting the same service life were studied. From the investigation, the mean and its COV of cover depth were evaluated to 70.0 ~ 90.0 mm and 0.2, respectively. With intended failure probability of 10.0 % and 70 mm of cover depth, service life decreased to 137 years, 123 years, and 91 years with increasing COV of 0.05, 0.1, and 0.2, respectively. In the case of 80 mm of cover depth, it changes to 179 years, 161 years, and 120 years with increasing COV. The equivalent safety index meeting the same service life from deterministic method showed 1.66 ~ 3.43 for 70 mm of cover depth and 1.61 ~ 3.24 for 80 mm of cover depth, respectively. The various design parameters covering local environment and quality condition in deterministic method yields a considerable difference of service life, so that determination of design parameters are required for exposure conditions and parameter variation.

한국 식물의 분포에 관한 연구 - 6. 단풍나무과의 분포도

김윤식(Yun Shik Kim),고성철(Sung Chul Ko),심정기(Jeong Ki Sim) 한국식물학회 1981 Journal of Plant Biology Vol.24 No.4

In our present investigations, distributions of Korean Aceraceae with single genus composed of 16 species, 14 varieties and 1 form were studied. Distributional atlases were made by UTM grid map and drawing methods have been previously described (Distributio Atlas of Plants of Korea Ⅰ, Ⅱ, and Ⅲ). Acer okamotoanum and A. takesimense of Korean endemic species are commonly distributed in Dagelet Island but the latter also in such islands as Quelpart, Wans-Do and Heuchsan_Do. A. palmatum var. nakaii is found in the middle and the northern parts of the subtropics, and A. micro-sieboldianum and A. nudricarpum restricted to the middle part of the country are endemic species of Korea. A. barbinerve and A. tegmentosum as species from the north are distributed to the top of Mt. Chiri in the south and are also found in Mr. Nangrim and Baiktu in the north. A. ginnala and A. mono are commonly distributed in Liaotung-Pantao and Shantung-Pantao, or Chinese peninsulas, and South Manchuria with Korean Peninsula. A. barbinerve, A. tegmentosum, A. triflorum, A. tschonoskii and A. nkurunduense in south Manchuria, north Manchuria and Korea are florae derived from Manchuria, and A. japonicum, A. momo var. ambiguum, A. mono var. savatieri, A. palmatum var. matsumurae and A. ukurunduense var. pilosum appear in Korea and Japan.

동종품(同種品) 교배(交配)와 이품종교배(異品種交配)를 교번(交番)한 이중교배(二重交配)의 차대잠형질(次代蠶形質)에 관(關)한 연구(硏究)(3) -교배순서(交配順序)와 차대잠산란순서(次代蠶産卵順序)-

김윤식 ( Yun Shik Kim ) 한국잠사학회 1967 한국잠사곤충학회지 Vol.7 No.-

가잠이중교배에 있어서 차대잠산란순서를 조사한 바 다음과 같은 결과를 얻었다. 1. 교배순서에 의하여 양웅성 잠품종의 수정란이 순서적으로 산란하는 것이 아니고 초산란구에 제2차교미 잠품종의 수정란이 도의와는 반대로 종산란구에 제1차교미 잠품종의 수정란이 섞여서 산란됨을 알았다. 따라서 제1차교미 잠품종의 정자와 제 2차교미 잠품종의 정자는 정소 내에서 완전히 혼정된다는 것을 의미한다. 2. 이중교배에 있어서 수정력의 강도는 잠품종과 교배순서가 지배하며 이 이외에 약간의 원인이 작용한다고 본다. The author studied on the eggs laying order of silkworm eggs which was laid by double copulation. The results can be summarized as follows; 1. Fertilized eggs were not laid in order like the copulating order. Author supposes that the sperms of the first copulated moth and second`s moth were mixed in the receptaculum seminis. 2. Intensity of fertilization was mainly affected by silkworm races and copulating order, but some other factors may be acted on the double copulation.

식품 소비에서의 물리적 제약에 대한 간접 증거

김윤식 ( Yun-shik Kim ),이균식 ( Kyunsik Lee ) 한국농업정책학회 2018 농업경영정책연구 Vol.45 No.3

The physical constraints, newly and recently introduced in economic theory, imply that the quantity of food or calory from food that consumers can take is restricted. Consumers cannot take food without limit, so they have to reduce the intake of other food if they are to take more one food. For example, total calory per person taken from intake of rice and meat has remained between 200,000Kcal and 250,000Kcal since 1970s in Korea, which means that the Korean consumers has decreased the consumption of rice, instead of increasing the consumption of meat. In other words, rice has been in fact substituted for meat. However, the relative price of rice for meat has been in decline, which implies that the substitution between rice and meat cannot be explained by the change in relative prices. Thus, this paper apples the physical constraints to explain the substitution between rice and meat. Applied to the relation between consumptions in rice and meat, the substitution is explained well without economic variables. The results show that there has existed the physical constraints in consumption per person of rice and meat and that consumers has decreased intake of rice by 228.9g when they has taken additional 100g of pork.

운길산 (雲吉山) (京畿)의 식물상과 보전대책

김윤식(Yun Shik Kim),엄정숙(Jung Sook Um),박선주(Seon Joo Park),장창기(Chang Gee Jang),박찬호(Chan Ho Park) 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.3

Mt. Ungil (610.2m) is located at 37°33` 38 ∼ 37°35` 38N in latitude and at 127°16` 19 ∼ 127°19`42E in longitude. It also belongs to Choan-Myun, Namyangju-Gun, Kyo^nggi-Do. The vascular plants collected and investigated from July, 1993 to September, 1994 consist of total 360 taxa : 6 forms, 44 varieties, 310 species, 232 genera, 79 families, 39 orders, 5 classes, 3 phyla. The endemic plants of Korea in this area are 10 taxa ; Melandrym seoulense Nakai, Clematis trichotoma Nakai, Lespedeza thunbergii var. intermedia (Nak.) T.Lee., Viola kamibayashii Nakai, Viola seoulensis Nakai, Forsythia koreana Nakai, Scutellaria insignis Nakai, Paulownia coreana Uyeki, Weigela subsessilis L.H. Bailey, Saussurea seoulensis Nakai. The rare and endangered plants are 3 taxa; Viola albida Palibin, Metaplexis japonica (Thunb.) Makino, Gastrodia elata Blume. The plants only distributed in the central district are 8 taxa: Chenopodium album L., Viola kamibayashii Nakai, Viola seoulensis Nakai, Ostericum grosserserrata (Max.) Kitamura, Trigonotis icumae (Max.) Makino, Scutellaria insingnis Nakai, Saussurea seoulensis Nakai, Brachypodium sylvaticum(Huds.) P. Beauv. Among the plants at Mt. Ungil, the proportion of common distribution with Jeju-Do, Island of Ulreung, the southern and northern part of Korea is 81.67%, 62.87%, 94.44%, 84.72% respectively. Among the useful plants there are 168 taxa of edible plants, 158 taxa of medicinal plants, 50 taxa of industrial plants and 45 taxa of ornamental plants, and 19 taxa of poisonous plants. The individual numbers of endemic, endanger, and rare species tend to decreae in nature. Therefore, it is necessary to strengthen the governmental regularity to limit disturbances by human activities. This action will help the process to maintain the balance in biodiversity resulted from homestasic and to conserve the natural ecosystem.

우분 퇴비화에 미치는 섬유질분해 고온균의 접종 효과

김윤식(Yun Shik Kim),이동훈(Dong Hun Lee),배경숙(Kyung Sook Bae),박희문(Hee Moon Park),이영하(Young Ha Rhee) 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.3

The possibility of using the cellulolytic and xylanolytic thermophiles as microbial inoculants to facilitate composting of cattle manure containing sawdust as a bulking agent was investigated by measuring the changes in various physico-chemical and microbiolgical parameters. Inoculation of the thermophiles shorten the time required for the temperature to rise from 15 to 50℃ and was effective for maintaining high temperature during active composting stage. The higher population of thermophiles and mesophiles during the composting operations clearly reflected the effect of inoculation. In addition, from the data on many parameters including efficiency of carbon degradation, final/initial C/N ratio, redox potential, and activities of abiontic cellulase and phosphatase, it could be deduced that the inoculants may enhance the decomposition efficiency of solid substrates in the compost and thus shorten the period for the production of matured compost.

류집분석과 (類集分析) 주성분분석에 의한 한국산 메꽃속 (屬) 의 수량분류학적 연구

김윤식(Yun Shik Kim),최병희(Byoung Heui Choi) 한국식물학회 1984 Journal of Plant Biology Vol.27 No.1

The relationships and character variations on taxa of Calystegia were examined by cluster analysis and principal component analysis. Thirteen Calystegia population samples from the middle part of Korea were observed. Although minor differences were noted, essentially similar results were obtained from the phenograms by UPGMA, UPGMC and Ward`s clustering methods, and these results were in accordance with those obtained from the ordinating plots by principal component analysis. C. soldanella is distantly connected with the other taxa mainly because of its morphologically different leaf organs. Based on the difference on the first principal component, C. hederacae is kept apart from the rest 3 taxa. In the relationships among C. japonica, C. sepium var. americana and C. davurica, minor differences were obtained from the 3 clustering methods. As to the character variations among different populations within a taxon, they are slight in C. soldanella and C. sepium var. americana, but remarkable in C. hederacae and C. davurica.

정부의 농산물 수매 행태가 생산에 미치는 영향: 쌀을 중심으로

김윤식 ( Yun Shik Kim ) 한국농업경제학회 2007 農業經濟硏究 Vol.48 No.3