천연골재 및 재생골재콘크리트의 Na₂SO₄침식에 의한 화학저항성에 관한 실험적 연구

김규용,이정율,박유신,강석표,김무한 忠南大學校 産業技術硏究所 1998 산업기술연구논문집 Vol.13 No.1

Now a day, the more Proportion of concrete used in practice is exposed to serious chemical attack Chemical reactions that involve formation of expansive products in hardened concrete can lead to certain harmful effects. In this study, it is to compare and investigate the chemical resistance of natural and recycled aggregate concrete by attacked Na₂SO₄according to W/C ratio. The result of this study is that the chemical resistance of recycled aggregate concrete is lower than natural aggregate concrete. But it is developed the chemical resistance by decreasing the W/C ratio.

일본·미국·독일 학술연구 지원기관의 학회지원 비교연구

김성열,고창규,정규영,정유성 경남대학교 교육문제연구소 2002 敎育理論과 實踐 Vol.12 No.2

The Korea Research Foundation(KRF) has supported the research activity of the academic society through 'Conference Grant Program' and 'Journal Publication Subsidy program'. The purpose of this paper is to reconsider this existing KRF' support programs for the academic society by analyzing the actual condition of foreign research foundations' aid for their academic society. To find implications, this study analyzes three countries' research foundations cases: Japan Society for the Promotion of Science (JSPS), National Science Foundation (NSF), National Endowment for the Humanities (NEH), American Council of academic Societies(ACLS), and Deutsche Forschungsgemeinschaft (DFG). Data of this study collected through related research publications, internet, and interview with the persons concerned of JSPS and DFG. Based on the findings, some implications for formulating a support program for the research activity of the academic society can be suggested as follows: First, the category 'promotion of publication of scientific research results' in Grant-in-Aid for Scientific Research in JSPS was designed to provide support to the academic society of Japan. In spite of this support, the FY 2000 amount for this progam was 2.59% in JSPS' total grant. NSF, NEH, ACLS, and DFG have give no support to the academic society itself. As a general principle, a academic society of Korea like that of the United States and German is required to meet its expense through membership fee. But considering Korean academic society's financial difficulty, it is necessary for KRF to support the research activity of academic society for a time. Second, it needs to publish chargeable scientific periodicals for academic society's self-supporting. In addition, like ACLS, there needs to be formulated the system which can be supported by income from endowment, private grants, and private gifts. Third, like JSPS's grant-in-aid for 'Scientific Periodicals', it needs to bring in the principle of high competition in the allocation of KRF's existing 'Journal Publication Subsidy program. Fourth, besides the KRF's existing subsidy program for academic society, KRF needs to support academic society's educational program for student, teacher, and individual citizens in order to disseminate academic information and strengthen the scientific potential of Korea. Finally, it is necessary to formulate the system that the representatives of learned society take part in the academic policy-making body, screening committee, and selection process of KRF.

골프장에 생물학적 방제를 이용한 농약사용 저감 방안

심규열(Gyu Yul Shim) 한국수처리학회 1998 한국수처리학회지 Vol.6 No.3

This study was conducted to develop an integrated disease management system of turfgrass using antagonistic microorganisms, fertilizers and fungicides as an alternative measure for the chemical control. Attempts were made to estimate the effect of calcium hydroxide, silicate fertilizer and urea on the mycelial growth of Rhizoctonia solani AG2-2 and the development of large patch in vitro and in vivo, and to establish the most promising combination of fertilizer, fungicide and antagonistic microbes. The reduction rates of agrochemicals in golf course using microbial products in Korea were decreased 29.3% to 80% yearly. The mycelial growth of Rhizoctonia solani AG2-2 were completely inhibited at 2,000, 1,000, and 3,000ppm concentration by calcium hydroxide, silicate fertilizer and urea, respectively. Inhibition effect of silicate fertilizer was the highest, but that of urea was the lowest compared with other treatments. Treatment of calcium hydroxide at rate of 100g/㎡ was the most effective, and control effect appeared from 30 days after treatment in spring, which was better in autumn than in spring. Silicate fertilizer treated at rate of 100g/㎡, 200g/㎡ in spring and 50g/㎡ in autumn were very effective. Urea at rate of 30g/㎡ was more effective than 60g/㎡ and 120g/㎡. The efficacies of mepronil and toclofos-methyl, applied twice in spring and once in autumn, were 83.8% in spring, which persisted to 70% in autumn compared with untreated plot. The efficacies of Trichoderma harzianum were the highest by 55% in spring, but those of Bacillus amyloliquefaciens BL-3 and Peudomonas putida were the highest by 80% in autumn among other antagonists tested, when two organisms were applied twice in spring and once in autumn. The most promising co-treatment against large patch was toclofos-methyl with Bacillus amyloliquefaciens BL-3 and calcium hydroxide at rate of 300g/㎡, silicate fertilizer 100g/㎡ and urea 80g/㎡. This combination treatment was more effective against autumn epidermics than spring epidermics and resulted in the efficacies of 93.1% suppression over the untreated plot as of October 21th.

한지형 잔디의 조성시기, 초종 혼합 비율이 잔디 피복에 미치는 영향

심규열(Gyu Yul Shim),김창수(Chang Soo Kim),이성호(Seong Ho Lee1),주영규(Young Kyoo Joo) 한국잡초학회·한국잔디학회 2004 Weed & Turfgrass Science Vol.18 No.4

This study was conducted to find out the effect of sodding and seeding time and rate of seed mixtures on the establishment of cool-season turfgrasses by evaluating the turf coverage rates for two years.<br/> In fall planting, the required establishment period of full coverage(100%) was 1.5 months with a rolled turf sodding(Kentucky bluegrass 100%, Kentucky bluegrass 80%+Perennial ryegrass 20%). The 100% turf establishment was achieved in 7 months with Perennial ryegrass 100%, and 7.5 months by seeding with Kentucky bluegrass 100%(KB100), Kentucky bluegrass 80%+Perennial ryegrass 20%(KB80+PR20), Kentucky bluegrass 70%+Perennial ryegrass 30%(KB70+PR30).<br/> In spring planting, the establishment periods for sod with KB100 or KB80+PR20 were taken one month. However, in the case of seeding, the establishment periods were 3 months, 3.5 months, 3.5 months and 4 months with PR100, KB80+PR20, KB70+PR30, and KB100, respectively. Comparing the turf establishment vigor between fall and spring planting, the vigor was higher in spring planting than in fall planting in both sodding and seeding.<br/> In the case of spring planting, the most proper time for turf establishment was tested on April, May, and June trials. The effect was significant in establishment vigor. The result showed highest on April planting. On May and June trials, establishment vigors were decreased gradually. As the mixture rate of PR increased, ryegrass, establishment vigor was decreased with the rates. These results indicated that perennial ryegrass has relatively less tolerant to summer heat than Kentucky bluegrass.<br/> Number of shoots in 95 days after seeding was higher in KB100 by 16,600 per ㎡ than in PR100 by 12,400 per ㎡, while the lowest number showed in KB50+PR50 by 3,300 per ㎡. Those in KB80:PR20, KB70:PR30 were 6,700 and 4,900 per ㎡, respectively. The ratios of tillers according to mixture rates between Kentucky bluegrass and perennial ryegrass were KB80:PR20=87:13, KB70:PR30=78:22, and KB50:PR50=48:52.<br/> According to results in this study, ideal seeding time might be spring (April) than in fall (September), and proper mixture rate was 80% of Kentucky bluegrass with 20% of perennial ryegrass.

β-용혈성 연쇄상구균 C, G 및 F 혈청군의 균종별 분리 빈도

황규열 ( Gyu Yul Hwang ),어영 ( Young Uh ),장인호 ( In Ho Jang ),이관수 ( Kan Su Lee ) 대한임상검사과학회 2006 대한임상검사과학회지(KJCLS) Vol.38 No.1

Beta-hemolytic streptococci (BHS) are frequently isolated pathogens in clinical microbiology laboratories. Among them, Group C, G and F streptococci infrequently cause respiratory infections, but they often invade other sites. Patients with underlying diseases are prone to be infected by the organisms and some of them can be fatal. Therefore, combination tests of serological and biochemical tests are needed to correct the identification of non-A, B streptococci because to various species belong to this species. The aim of this study was to investigate the isolation rates of strains and distribution of serogroup C, G and F streptococci at Wonju Hospital during the period of 2003-2004. 133 clinical isolates of group C, G and F streptococci were examined. Of them, 13 (9.8%) were group C, 41 (31.8%) were group F, 79 (59.4%) were group G. The prevalent isolation of the strains by serogroup were: group C, Streptococcus constellatus (38.5%); group F, Streptococcus anginosus (56.1%), Streptococcus constellatus (26.9%); group G, Streptococcus anginosus (54.4%), Streptococcus dysgalatiae subsp. equisimilis (26.5%). Overall, the most frequently isolated BHS was Streptococcus anginosus (51.2%).

First Report of Take-All on Turfgrass Caused by Gaeumannomyces graminis Var. Graminis in Korea

Cha, Jae-Yul,Lee, Jung-Han,Kim, Jeong-Ho,Shim, Gyu-Yul,Bae, Eun-Ji,Kwak, Youn-Sig Turfgrass Society of Korea 2012 한국잔디학회지 Vol.13 No.2

콘크리트구조물의 수명 예측기법 및 보수효과를 고려한 보수공법 모형개발

김규용 ( Kim Gyu-yong ),신동주 ( Shin Dong-ju ),박선규 ( Park Sun-gyu ),이정율 ( Lee Jung-yul ),반성수 ( Ban Sung-su ),권영진 ( Kwon Young-jin ),김무한 ( Kim Moo-han ) 한국구조물진단유지관리공학회 1998 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.2 No.1

The purpose of this study is to set up a proper repair plan and to extend the remaining lifetime of them by predict the remaining lifetime of reinforced concrete structures quantitatively, this method is based on actual reserch on age deterioration, carbonation depth and covering depth of the reinforced concrete structures, also, we can find of the value of the probability of steel corrosion through the deviation of carbonation speed and covering depth. According to this probability, we can predict the lifetime and select proper repair method which works sustainedly and economically.

Species Diversity of Caterpillars on Feeding on the foliage Wild peach (Prunus spp.) in the Korean Peninsula

Kang Woon Lee,Hyeon Gyu Yoon,Ki Gyung Kim,Hong Yul Seo 한국응용곤충학회 2015 한국응용곤충학회 학술대회논문집 Vol.2015 No.10

Most caterpillars, the larvae of butterflies and moths(Lepidoptera), are herbivorous. Even though their major role in the ecosystem, details of biology are poorly known for most species. This study has been carried out to identify larvae and to acquire useful biological information of insect larvae through rearing from 1997 to 2015 in HECRI(Holoce Ecosystem Conservation Research Institution). From 2012, 2013, 2014 we are carrying out ‘Larvae Identification and Specimen Security of Primary Endemic Moths in Korea Peninsula through Rearing’ supported by National Institute of Biological Resources(NIBR). Of these this study is the list about special caterpillars feeding on the foliage wild peach (Prunus spp.) Total 209 species belonging to 15 families were collected and 52 species belonging to 13 families identified. Among them wild peach dependent monophagous caterpillars are 17 species belonging to 9 families, oligophagous 1 species belonging to 1 families and polyphagous 34 species belonging to 9 families. The dominant family is Geometridae(65 species), second is Noctuidae(57 species) and followed by Pyralidae(21 species).

Analysis of Hampyeong Butterfly Festival from an Ecotourism Goal Perspective

Yong-ho Roh,Gang-hoan Jeong,Hong-yul Kim,Chung-gyu Lim,Chae-kwan Lim 한국인간·식물·환경학회 2009 인간식물환경학회지 Vol.12 No.3

The goal of ecotourism is the conservation of nature, creating benefits for local residents, and providing high quality tourism for visitors. This study investigated: (1) visitors' satisfaction about festival activities and (2) the contribution of ecotourism to the region, specifically visitors' understanding of the local culture and visitors' consumption at this festival. The results of this study were as follows. First, spending time with family was the major reason of visiting this festival. The major visiting pattern of this festival was family, too. Developing family oriented experience programs were required. Second, visitors were quite satisfied with the programs of this festival. Visitors were the most satisfied the International Butterfly Room where visitors can see live butterflies. Third, visitors could understand the local culture in this festival and the county's development strategy is related to butterflies. Visitors could see butterflies even on blankets and pillows of motels, and designs at the bus terminal in Hampyeong county. Fourth, in terms of visitors' consumption at this festival, visitors spent more money on lodging, traffic, entrance fees. Finally, managerial implications for the festival staff were suggested.

Comparison of Several Leaf Morphological Traits between the Two DH Populations in Chinese Cabbage

Yul-Kyun Ahn,Moo-Kyoung Yoon,Jong-Gyu Woo,Myeong-Cheoul Cho,Hye-Eun Lee,Young-Il Cho 한국원예학회 2012 한국원예학회 학술발표요지 Vol.2012 No.10