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강정호,안기흥,이경로 한국곤충학회 1998 Entomological Research Vol.28 No.1
매미나방(Lymantria dispar)의 발생단계에 따라 JH유사물인 methoprene(isopropyl (2E, 4E)-11-methoxy-3, 7, 11-trimethyl-2, 4-dodeca-dienoate)을 경구처리와 도포처리하여 난소의 미세구조에 미치는 영향을 광학현미경과 투과전자현미경으로 관찰하였다. 다자양형 난소소관으로 이루어진 난소는 복부배면에 1쌍 존재하고 각각 4개의 난소소관으로 구성되었으며, 대조군에서는 전형적인 난세포의 분화가 일어났다. 난황축적이 진행되면서 난모세포 내에는 단백질성 난황, 지질성 난황과 글리코겐 입자들이 다량 함유되어 있었다. 난황축적이 끝난 후에는 난황막과 난각이 형성되어 정상적인 난 성숙을 하였다. 반면 methoprene 처리군은 발육이 억제되어 외형상 난소의 크기와 성숙도가 낮아져 대조군에 비하여 난소소관의 길이와 난세포의 수에서 차이를 보였으며, 난황 축적 등이 제대로 형성되지 않아 정상 성숙과 분화 과정에 연속성을 나타내지 않았다. The cellular effects, especially morphological changes of methoprene (isopropyl (2E, 4E) methoxy-3, 7, 11- trimethyl-2, 4-dodeca-dienoate), the juvenile hormone analogue, in the ovary of gypsy moth, Lymantria dispar were studied with light and transmission electron microscopes. The ovary of Lymantria dispar was composed of 4 polytropic ovariole. In control groups, normal oocytes were fully matured, and then protein yolk, lipid yolk and glycogen particles were formed in cytoplasm. In methoprene treated gypsy moth, egg maturation were not completely controlled. There existed differences in growth of ovarioles between control and methoprene treatment groups. A lot of lipid vesicles and abnormal oocytes were observed in methoprene treatment groups. There were processing of yolk formation, numerous glycogen particle and the shape of protein droplets were changed in methoprene treatment groups.
The Stroma-Rich Variant Subtype of Castleman’s Disease in the Retroperitoneum: A Case Report
강정호,김명진,김영철,정용은,최진영 대한영상의학회 2009 대한영상의학회지 Vol.61 No.5
The stroma-rich variant of the hyaline-vascular type of Castleman’s disease is a rare disease entity that is characterized by the overgrowth of a variety of stromal cells in the widened interfollicular area. We report a case of a 21-year-old woman who was admitted with a retroperitoneal mass that was initially suspected to be a liposarcoma, malignant fibrous histiocytoma or neurogenic tumor, but later confirmed as the stroma-rich variant subtype of Castleman’s disease. Preoperative computed tomography (CT) and magnetic resonance imaging (MRI) showed an arborizing pattern of central calcifications and centrifugal contrast enhancement pattern of the mass. Herein, we discuss the MRI findings of this stroma-rich variant subtype.
Methoprene이 짚시나방(Lymantria dispar)의 배자 발생에 미치는 영향
강정호,오세원,이경로 한국응용곤충학회 1993 한국응용곤충학회지 Vol.32 No.4
짚시나방(Lymantria dispar)의 배자 발생에 미치는 유약호르몬의 영향을 조사하기 위하여 유약호르몬 유사체인 methoprene을 알에 도포처리(topical treatments)하여 부화율, 부화 유충의 생체량 및 알의 단백질과 탄수화물 함량 변화를 조사하였다. Methoprene 농도별 처리는 부화율에 영향을 미쳐 methoprene 처리군이 대조군(78.5%)에 비해 낮은 부화율을 나타 냈으며 5.0$\mul$ 처리군에서 가장 낮은율(42.5%)을 보여 주었다. 부화 직후 1령 유충의 생체량은 대조군이 0.7525mg으로 가장 높았으며 methoprene 농도 처리 순으로 감소하다가 5.0${\mu}\ell$ 처리군에서 0.6487mg으로 최하치를 나타냈다. 처리군별로는 대조군과 0.5$\mul$ 처리군이, 1.0$\mul$와 2.0$\mul$ 처리군의 생체량이 유사하였다. 배자 발생중 알의 단백질 함량 변화에서 0.5$\mul$ 처리군은 2, 4일째 대조군과 뚜렷한 차이를 나타냈으며, 탄수화물도 대조군에 비해 처리군이 낮은 함량을 유지하였다. We investigated effects of a topical treatment of methoprene(0.5-5.0$\mul$/egg), a juvenLle horm mane analogue, on embryo development in the gypsy moth, Lymantri$\alpha$ dispar. Methoprene lowered egg hatching rate, and also reduced the mean wet weights of hatched 1st instar larvae w with the most effect shown at the highest concentration. The differences in protein(p < 0.01) and carbohydrate(p < 0.05) contents between control and methoprene(5$\mul$/ egg) treatment g groups were observed during embryo development.
Integration of Cloud and Big Data Analytics for Future Smart Cities
강정호,박종혁 한국정보처리학회 2019 Journal of information processing systems Vol.15 No.6
Nowadays, cloud computing and big data analytics are at the center of many industries’ concerns to takeadvantage of the potential benefits of building future smart cities. The integration of cloud computing and bigdata analytics is the main reason for massive adoption in many organizations, avoiding the potentialcomplexities of on-premise big data systems. With these two technologies, the manufacturing industry,healthcare system, education, academe, etc. are developing rapidly, and they will offer various benefits toexpand their domains. In this issue, we present a summary of 18 high-quality accepted articles following arigorous review process in the field of cloud computing and big data analytics.
Cone beam형 전산화 단층영상을 이용한 하악전치부 영양관의 연구
강정호,김규태,최용석,황의환 대한구강악안면방사선학회 2006 Imaging Science in Dentistry Vol.36 No.3
Purpose : To evaluate location, distribution, diameter, and length of the nutrient canals on mandibular anterior region using a cone beam computed tomography (CBCT). Materials and Methods : Mandibular CBCT was performed on 33 adults (18 males and 15 females) with no history of systemic disease, and any other dental surgery history. Location, distribution, diameter, and length of the nutrient canals on mandibular anterior region were radiographically evaluated. A statistical comparison was done by SPSS. Results : In the location and distribution of nutrient canals, they were found in 6.8% at labial portion above root apex, in 93.28% at lingual portion above root apex in 46.2% at labial portion below root apex, and in 53.6% at lingual portion below root apex. Nutrient canals at lingual portion above root apex were most frequently observed between central and lateral incisors, and those at labial and lingual portion below root apex were most frequently observed between central incisors. The mean diameters of nutrient canals were 0.54 mm at labial portion above root apex, 0.61 mm at lingual portion above root apex, 0.66 mm at labial portion below root apex, and 0.76 mm at lingual portion below root apex. The mean lengths of nutrient canals were 2.63 mm at labial portion above root apex, 3.74 mm at lingual portion above root apex, 4.51 mm at labial portion below root apex, and 6.77 mm at lingual portion below root apex. Conclusion : CBCT is useful device to evaluate the anatomical structure of nutrient canals on mandibular anterior region.
고령화 사회와 노인 삶의 질 향상을 위한 여가 정책에 대한 연구
강정호,박정희 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6
The increase of leisure is the common phenomenon for every level of people in the modern society. However, the age group with this phenomenon appearing remarkably would be the elder people, The problems of the elderly can be summarized as poverty, disease, solitude, and inactivity. Among them, inactivity begins from the social retirement, Nowadays, elderly lead an active life of 10~15 years after their retirement, and each individual and the society should reflect on how they will spend this long period of life seriously, The percentage of the elderly population over B0 was 5.5% in 1950, 7.7% in 1990, 10.7% in 2000, and will be 17.7% in 2021. And the percentage of the elderly population over 55 was only 33% in 1951, but became 3,B% in 19B0, and 6.2% in 1998, And it is estimated to be 7,1% in 2000, and 132% in 2021, Thus, as the problems of the elderly appear increasingly serious, the problems of the leisure for the elderly is rising rapidly. Specifically, the problems are as follows : First, they are facing their weary lives due to the increase of the leisure time. Second, there are not enough awareness, technology, friends, and education about the leisure. Third, the lack of place and facility for the leisure activity and the lack of programs is becoming an obstacle in enlarging the leisure activity of the elderly, Fourth many elder people cannot participate in the leisure activity because of economic and health reason, Last, the low-income elder people with the weakened economic ability is increasing, which is the most important problem above all. This study was necessary because, in planning the policy to let the elder people in the city who spend their lives wearily and boringly in the solitude and estrangement have more motivated and happier lives, the study of the elder people was essential, And the purpose of this study is to encourage the development of the wide-range and specific leisure policy and the leisure activity program when planning the policies to enhance the quality of life for the low-income elder people living in th city, and to emphasize that the leisure activity of the elderly is not a boring time but can be a positive and creative life. Besides, this study was performed to suggest the leisure policy of the national level for the enhancement of the quality of life for the elder people. This study is based on the domestic and foreign literature about the elderly and the national policy reports.
Tier 4 Interim 배기규제 만족을 위한 56kW급 오프로드 차량 EGR 적용에 관한 연구
강정호,한준섭,정재우,정건우,조규백,임중호,표수강 대한기계학회 2012 大韓機械學會論文集B Vol.36 No.2
비도로용 차량의 경우 대부분 디젤엔진을 사용하여 엔진의 특성상 PM과 NOx의 배출이 많은 단점이 있다. 승용 및 상용 디젤 차량의 경우 CRDI 및 후처리 장치를 적용하였고 후처리 장치로 DOC/DPF를 장착함으로써 PM은 약 90% 이상 저감 가능하다. 상반관계인 NOx는 EGR 사용을 통해 1차적으로 NOx 배출량을 감소시키고 LNT, LNC, Urea-SCR 등의 DeNOx 시스템으로 NOx의 배출량을 보다 현저히 저감시켜 배기규제를 만족시키고 있다. 본 연구에서는 tier 4 interim 배기규제를 만족하기 위해 56kW급 오프로드 차량으로 연구를 진행하였다. NOx의 감소를 위해 WGT와 전자 제어방식의 HPL EGR 시스템을 적용하였고 CO와 THC, PM 배출가스를 줄이기 위해 DOC와 DPF를 사용하였다. EGR 시스템을 적용하기 위해 각 조건에 대한 기본 실험을 실시하여 EGR map을 작성하였다. 작성된 map을 NRTC 모드에서 시험하여 map의 적용성을 검증하고 tier 4 interim 배기규제 만족여부를 파악하였다.
국외 주요국과 북한의 사이버전 수행전략 및 기술 비교분석을 통한 대응방향
강정호,김회동,김순수,유진철 보안공학연구지원센터(JSE) 2016 보안공학연구논문지 Vol.13 No.4
북한은 7.7 DDoS 공격(2009년) 이후 사이버 적대행위를 지속하고 있으며, 최근에는 국가 중요시설 의 전산망을 공격하는 사이버전 공격을 확대하는 등 사이버전 관련 과학기술을 실질적으로 적용하고 공세적으로 활용하는 변화를 추구하고 있다. 그러나 이러한 북한의 사이버전을 수행하기 위한 여러 가지 과학기술 도입 방법이나 수행전략은 제대로 알려져 있는바가 없는 상황이다. 이러한 문제인식에 따라서 본 논문에서는 북한의 사이버전 수행전략과 기술을 분석하고 이를 해외 주요 국가별 사이버 전 대응전략과 비교하여 한국에서 사이버전 대응방향을 어떻게 준비해야 하는지에 대해 평가해 보았 다. 분석결과 북한의 사이버전 기술은 모두 사이버 심리전과 사회 공학적 기법을 병행하여 공격을 수 행하고 있음을 확인할 수 있었다. 또한 북한의 사이버전 수행전략은 사이버 작전부대와 인력운영 측 면에서 북한의 국가적 목표 달성을 위한 전략적 무기이자 핵심전력으로 운용하고 있다. 이러한 분석 결과를 바탕으로 한국이 사이버전에서의 우세를 확보하기 위한 대응방향을 제시한다. Since DDoS attack of July 7th 2009, North Korea have being performed cyber attacks aggressively to Republic of Korea, expanding its attacking to the computer network of national major facilities and Infra structures in ROK. Even worse, there are not information concerning perform strategy of cyber warfare nor computer science technology by North Korea. In this regard, this paper analyzes and suggests responsive strategy to the North Korea’s cyber warfare or cyber attacks comparing to the other nations cyber security policies and strategies such as US, Germany, Japan and the like. In our analysis and review, we can ascertain that North Korea has performed the cyber attack with cyber psychological and social engineering technique paralleled. In addition, its strategy of cyber warfare is an important part of the national strategy and core military strength which pursue to achieve North Korea’s national objective. For the forgoing reason, this paper suggests the responsive strategy in order to pursue superiority in the cyber warfare against North Korea