총채벌레 천적 으뜸애꽃노린재(Orius strigicollis)와 미끌애꽃노린재(Orius laevigatus)의 생물학적 특성 비교

김정환,김황용,변영웅,김용헌,Kim, Jeong-Hwan,Kim, Hwang-Yong,Byoun, Young-Woong,Kim, Yong-Heon 한국응용곤충학회 2008 한국응용곤충학회지 Vol.47 No.4

국내종인 으뜸애꽃노린재와 유럽종인 미끌애꽃노린재의 알, 약충 발육기간과 성충의 산란수, 수명, 포식량 및 포장밀도에서 증가량을 비교하였다. 으뜸애꽃노린재와 미끌애꽃노린재의 $15{\sim}30^{\circ}C$에서 알 부화율은 각각 $46.7{\sim}88.2%$와 $65.0{\sim}89.9%$였고, 알기간은 각각 $3.1{\sim}14.9$일과 $3.1{\sim}13.5$일이었다. 두 종의 약충 발육기간은 각각 $9.4{\sim}42.8$일과 $9.3{\sim}42.0$일이었고, 약충기간 생존율은 각각 $2.4{\sim}96.5%$와 $4.3{\sim}80.6%$였다. 두 종의 산란수는 15, 20, 25, 30, $35^{\circ}C$에서 각각 28.1, 107.9, 123.6, 127.3, 18.1개와 101.8, 218.6, 224.5, 219.5, 15.7개였고, 성충수명은 각각 63.4, 40.1, 22.1, 18.3, 11.0일과 70.6, 66.4, 32.6, 34.5, 7.3일로 으뜸애꽃노린재에 비해 미끌애꽃노린재의 산란수가 많고 성충수명은 길었다. 으뜸애꽃노린재와 미끌애꽃노린재의 온도와 일장에 의한 산란수는 $18^{\circ}C$, 16L:8D에서 각각 105.8개와 109.5개였고, 10L:14D에서 각각 1.0개와 63.0개였다. $25^{\circ}C$, 16L:8D에서 각각 142.4개와 191.5개였고, 10L:14D에서 각각 31.8개와 198.8개로 으뜸애꽃노린재는 $18^{\circ}C$, 10L:14D에서에 거의 모든 개체가 휴면하지만 미끌에꽃노린재는 휴면하지 않는다, 으뜸애꽃노린재와 미끌애꽃노린재의 꽃노랑총채벌레 2령 하루 포식량은 각각 14.3마리와 10.9마리이다. 겨울작형 시설재배 파프리카에서 으뜸애꽃노린재는 5월 중순부터 증가하기 시작하여 7월 상순에는 꽃당 1.8마리로 증가하였다. 미끌애꽃노린재는 3월 중순부터 증가하여 6월 상순에는 꽃당 6.6마리로 증가하는 과밀도 현상을 보였다. With the comparison of native Orius strigicollis (Poppius) to European O. laevigatus (Fieber), we investigated biological characteristics such as developmental period, fecundity, life span, predation ability, and augmentation after release. Experiments were carried out at five temperature condition, $15^{\circ}C\;20^{\circ}C,\;25^{\circ}C\;30^{\circ}C$, and $35^{\circ}C$. In the case of O. strigicollis, egg period was $3.1{\sim}14.9$ days (hatchability: $46.7{\sim}88.2%$), and developmental period of nymphs was $9.4{\sim}42.8$ days (survival rate: $2.4{\sim}96.5%$). Fecundity at each temperature was 28.1, 107.9, 123.6, 127.3, and 18.1, respectively. Life span of adults was 63.4, 40.1, 22.1, 18.3, and 11.0 days, respectively. In the case of O. laevigatus, egg period was $3.1{\sim}13.5$ days (hatchability: $65.0{\sim}89.9%$), and developmental period of nymphs was $9.3{\sim}42.0$ (survival rate: $4.3{\sim}80.6%$) days. Fecundity at each temperature was 101.8, 218.6, 224.5, 219.5, and 15.7. Life span of adults was 70.6, 66.4, 32.6, 34.5, and 7.3 days, respectively. In long-day condition (16L:8D), fecundity of O. strigicollis and O. laevigatus was 105.8 $(18^{\circ}C){\sim}142.4(25^{\circ}C)$ and 109.5 $(18^{\circ}C){\sim}191.5(25^{\circ}C)$, respectively. In short-day condition (10L:14D), fecundity of them was 1.0 $(18^{\circ}C){\sim}31.8(25^{\circ}C)$ and 63.0 $(18^{\circ}C){\sim}198.8(25^{\circ}C)$, respectively. Daily prey consumption of second instar Frankliniella occidentalis was 14.3 and 10.9, respectively. In greenhouse, density of O. strigicollis begins to increase from mid May and peaked about early July (1.8 individual/flower), while that of O. laevigatus begins to increase from mid March and peaked about early June (6.6 individual/flower).

Single CNN-based ENSO forecast model for all target seasons

김정환,함유근 한국기상학회 2019 한국기상학회 학술대회 논문집 Vol.2019 No.10

둥근마 에탄올 추출물의 항염증 효과

김정환ㆍ김대용(Jeung Hoan KimㆍDae Yong Kim) 한국인체미용예술학회 2016 한국인체미용예술학회지 Vol.17 No.1

Dioscorea bulbifera has been cultivated in Korea, China and Japan as a food, and also widely used as a traditional medicine for a long time. This study was conducted to determine the anti-inflammatory effect of Dioscorea bulbifera ethanol extracts. The inhibitory effect of Dioscorea bulbifera ethanol extracts were evaluated regarding production or expression of inflammatory mediators in macrophage cells. Dioscorea bulbifera ethanol extracts significantly inhibited the expression of IL-4, IFN-γ and PGE2 and expression of COX-2, iNOS, TNF-α, in LPS-stimulated RAW264.7 cells. In addition, we evaluated the inhibitory effect of Dioscorea bulbifera ethanol extracts on an atopic dermatitis-like mouse model. An atopic dermatitis-like skin lesion was induced by repeated treatment of DNCB on the ear skin of ICR mice. The efficacy of Dioscorea bulbifera ethanol extracts was tested by histophathologic analysis. Histophathologic analysis revealed a reduction in the ear thickness in Dioscorea bulbifera ethanol extracts treated mice. These results show that Dioscorea bulbifera ethanol extracts have an anti-inflammatory effect. Therefore, this research suggests that Dioscorea bulbifera may be a potential agent for ameliorating inflammation.

사일로시스템에 의한 내화학성 단면복구 몰탈의 기계화 시공

김정환,주동철,김경덕,김재성,Kim, Jeong-Hwan,Ju, Dong-Cheol,Kim, Gyeong-Deok,Kim, Jae-Seong 한국시멘트협회 2005 시멘트 Vol.168 No.-

아메리카잎굴파리 (Liriomyza trifolii)의 외부기생봉 굴파리좀벌 (Diglyphus isaea)의 생태적 특성 및 저장 조건 구명

김정환,변영웅,김용헌,김황용,Kim, Jeong-Hwan,Byoun, Young-Woong,Kim, Yong-Heon,Kim, Hwang-Yong 한국응용곤충학회 2007 한국응용곤충학회지 Vol.46 No.1

아메리카잎굴파리 외부기생봉인 굴파리좀벌의 온도별 알, 유충, 번데기 발육기간과 성충의 산란수, 기주체액 흡즙수, 성충수명, 저온 저장력 등을 조사하였다. 굴파리좀벌의 알기간, 유충기간, 번데기 기간은 $25^{\circ}C$에서 각각 1.3일, 4.5일, 6.3일이었다. 성충의 산란수, 기주체액 흡즙수, 성충수명은 $25^{\circ}C$에서 각각 305.3마리, 657.0마리, 25.1일이었다. 아메리카잎굴파리 유충 영기별 굴파리좀벌의 산란선호성과 흡즙선호성을 조사한 결과 각각 90.2%와 82.8%가 3령 유충에 집중되었다. 굴파리좀벌의 저온저장에 따른 50% 생존기간은 꿀물 20%희석 용액을 제공할 경우 $5^{\circ}C,\; 10^{\circ}C,\;15^{\circ}C$에서 각각 180일, 150일, 90일이었다. 굴파리좀벌 저온저장 후 산란수는 저장기간 30일, 70일, 140일에서 각각 190.8개, 104.0개, 89.4개였다. Experiments have been performed to investigate biological characteristics of Diglyphus isaea (Walker), an ectoparasite of Liriomyza trifolii (Burgess). At $25^{\circ}C$, development time of D. isaea was estimated as 1.3 days for eggs, 4.5 days for larvae and 6.3 days for pupae. Adult longevity was 25.1 days, and a female adult could lay 305.3 eggs throughout its lifetime. Number of L. trifolii parasitized or killed by the wasp was 962.2 individuals/adult. Most of all parasitized or killed larvae were identified as third instar. With 20% honeyed water as food source, half of the adults could survive 180 days at $5^{\circ}C$, 150 days at $10^{\circ}C$, and 90 days at $15^{\circ}C$. After storing at $10^{\circ}C$ with absolute honey for 30 days, 70 days and 140 days, a female adult in room temperature laid eggs 190.8 individuals, 104.0 individuals and 89.4 individuals, respectively.

해외진출을 통해서

김정환,Kim Jung Whan 대한간호협회 1969 대한간호 Vol.8 No.2

O-RAN 공인시험 프로세스와 종단간 시험 기술 분석

김정환,남기동,J.H. Kim,G.D. Nam 한국전자통신연구원 2024 전자통신동향분석 Vol.39 No.1

The O-RAN Alliance is responsible for defining the technical and testing specifications of open radio access networks, aiming for openness, virtualization, and intelligence in these networks. Recently, the application of Korea Open Testing and Integration Center (OTIC) to this alliance has been approved, enabling the issuance of O-RAN certificates and badges. An OTIC plays a crucial role as a testing facility in performing conformance verification and interoperability tests for O-RAN functions and interfaces. In addition, it enables end-to-end system verification adhering to O-RAN principles and processes. These activities can substantially contribute to enhancing the competitiveness of domestic O-RAN products and activating the corresponding ecosystem. We comprehensively describe the O-RAN certification and badging processes. Additionally, we analyze end-to-end test cases that are essential for the proper deployment and operation of 5G systems including O-RANs.

세계의 대학-히로시마 대학

김정환,Kim, Jeong-Hwan 한국대학교육협의회 1984 大學敎育 Vol.10 No.-

노인 복지를 위한 응급 상황 호출 프로그램의 개발 및 구현

김정환,조면균,김식,Kim, Jung-Hwan,Cho, Myeon-Gyun,Kim, Shik 대한임베디드공학회 2013 대한임베디드공학회논문지 Vol.8 No.2

This paper proposes a system that utilizes USN(Ubiquitous Sensor Network), Bluetooth and smart phone to improve the function of senior houses. In typical approach, a system in a senior house either directly accesses the status of elderly people by its sensor or is alerted by elderly people who trigger an emergency bell, derive a decision and take an appropriate action. In addition, it is possible for a designated social worker to check the status of senior patients through monitoring system connected by UTP(Unshielded Uwisted Pair) cables, but the responsible person has to be present to monitor patients' status. However, the new system, suggested in this paper, embed Bluetooth function in a blood pressure gauge, thus the smart phone receives patients' health information such as blood pressure through Bluebooth, if any abnormal event occurs. Consequently, the smart phone sends SMS(Short Message Service) to a responsible social worker or a designated hospital. When this program in the paper becomes a reality, an unmanned system that is able to determine suitable actions for certain events will be established, even if a social worker were absence.

SAN 기술 및 시장동향

김정환,강회일,이동일,Kim, J.H.,Kang, H.I.,Lee, D.I. 한국전자통신연구원 2000 전자통신동향분석 Vol.15 No.1

이 글에서는 현재 데이터 웨어하우스의 구축과 ERP 시스템 등의 도입으로 대용량 스토리지에 대한 요구가 계속 높아지고 있는 기업 규모의 시스템에서 높은 신뢰성과 성능, 내장애성, 그리고 통합된 관리와 고속 백업 솔루션으로 등장한 SAN의 기본 개념과 장점, 그리고 시장동향에 대해 살펴보았다.