자란만 패류양식해역의 물리환경 설명을 위한 평균체류시간 산정

김진호,박성은,김영민,김청숙,강성찬,정우성,심보람,엄기혁,Kim, Jin Ho,Park, Sung-Eun,Kim, Youngmin,Kim, Chung Sook,Kang, Sungchan,Jung, Woo-Sung,Sim, Bo-Ram,Eom, Ki-Hyuk 한국환경과학회 2020 한국환경과학회지 Vol.29 No.3

Residence time is defined as the time taken for a material in a system to leave the system. The residence time characteristics in shellfish aquaculture determine the dispersion of excretion from aquaculture farms, along with the supply of food by seawater exchange. In this study, we estimated the spatial distribution of average residence time in the shellfish farming area using a particle tracking model. As a result, a relatively short average residence time of about 20 days or less was calculated in most areas, but an average residence time of more than 40 days was calculated in the inner areas. Relatively long average residence times were calculated along the west coast compared to the east coast, with the longest average residence time of more than 50 days in the northwestern areas. It can be inferred that the disturbance of the benthic ecosystem caused by shellfish farms is likely to be large because of the relatively weak dispersion of excrement from shellfish farms located on the west coast, especially in the northwest region. This distribution of average residence time is important for understanding the potential effects of seawater exchange on the environmental sustainability of shellfish farms, along with the seawater circulation characteristics of Jaran Bay.

단치소요산가감방(丹梔逍遙散加減方)이 streptozotocin으로 유발된 고혈당 생쥐에 미치는 영향

김진호,김경수,김정상,Kim, Jin-Ho,Kim, Kyung-Soo,Kim, Jeong-Sang 대한한의학방제학회 2005 大韓韓醫學方劑學會誌 Vol.13 No.2

This study has been carried out to understand the effect of Danchisoyosangagambang (DC) on the hyperglycemic mice induced with streptozotocin(STZ). Experimental groups were made diabetic mice by intraperitoneal injection of STZ(60 mg/kg of body weight) tw ice by 24 h interval and then 120 mg/kg STZ was injected again 3 days after the earlier treatment. Control group was administered mice with 0.9 % saline(2 mL/kg), and experim ental groups were administered DC extract(DCA group, 10 mg/kg/day; DCB group, 30 mg/kg/day) after hyperglycemic induction for 6 weeks. The body weight of experimental groups was lower than control. The blood glucose concentration increased continuously, rea ching to 298.9 mg/dL after 6 weeks, however, experimental groups of the DCA and DCB groups significantly(p<0.0l) decreased in the 4, 5, and 6 weeks groups. Blood glucose tolerance test was not significant between control and experimental groups. We examined the blood transaminase activities to know the effect of herbal medicine on liver function. The GOT activities were lower in group DCB than in control. The GPT activities were lower in group DCA and DCB than in control. The content of triglyceride was significantly increased in group DCA compared to control. The SOD and catalase activities were higher in the group DCA compared to control. The results of immunohistochemical study, a few of insulin positive cells observed in the control and experimental group. These results suggest that administration of DC extract to the hyperglycemic mice decreased the blood glucose level.

농업인의 유기농업 기술개발 만족도 조사

김진호,이상범,박광래,홍승길,이초롱,김민기,김용기,이상민,변영웅,고병구,Kim, Jin-Ho,Lee, Sang-Beom,Park, Kwang-Lai,Hong, Seung-Gil,Lee, Cho-Rong,Kim, Min-Gi,Kim, Yong-Ki,Lee, Sang-Min,Byeon, Young-Woong,Ko, Byong-Gu 한국유기농업학회 2018 韓國有機農業學會誌 Vol.26 No.2

This study was conducted to investigate farmers' satisfaction in organic farming technologies developed by the Rural Development Administration (RDA). The survey targeted farmers who were eco-friendly or interested in eco-friendly agriculture. 70% of the target farmers were doing eco-friendly farming, and the satisfaction rate of the technology developed by the RDA was 3.85 points. The satisfaction of the farmers who participated in demonstration and demonstration of the farming field of the developed technology was 4.00 and the satisfaction level of organic farming instruction manual was 3.95. In addition, 38.4% of the surveyed areas were found to be pest control areas, and the impacts on the satisfaction of the organic cultivation related technology utilization and the satisfaction of the organic cultivation guide were analyzed. As a result, the RDA needs to develop and supply customized technology for aged small farmers.

관계형 OLAP 데이터 웨어하우징 환경에서 조인과 집계함수를 포함하는 질의의 효율적인 처리

김진호,김윤호,김상욱,Kim, Jin-Ho,Kim, Yun-Ho,Kim, Sang-Wook 대한전자공학회 2002 電子工學會論文誌-CI (Computer and Information) Vol.39 No.5

대용량의 데이터가 저장되는 데이터 웨어하우징 환경에서 조인이나 집계 함수와 같은 고비용의 연산의 효율적인 처리는 매우 중요하다. 본 논문에서는 집계 함수(aggregate function)와 조인(join)이 모두 포함된 질의를 처리하는 새로운 기법을 제안한다. 제안하는 기법은 먼저 차원 테이블(dimension table)을 미리 그루핑한 후, 비트맵 조인 인덱스(bitmap join index)를 이용하여 조인을 처리하는 방식을 사용한다. 이 결과, 사실 테이블(fact table)만을 접근하여 집계 함수를 처리함으로써 기존 기법이 가지는 성능 저하의 문제점을 해결할 수 있다. 기존 기법과 제안하는 기법에 대한 비용 모델(cost model)을 정립하고, TPC-H 벤치마크를 기반으로 하는 다양한 시뮬레이션을 수행함으로써 제안된 기법의 우수성을 규명한다. Efficient processing of expensive queries that include joins and/or aggregate functions is crucial in data warehousing environment since there reside enormous volume of data. In this paper, we propose a new method for processing of queries that have both of joins and aggregate functions. The proposed method first performs grouping of the dimension table and then processes join by using the bitmap join index. This makes only the fact table accessed for processing aggregate functions, and thus resolves the serious performance degradation of the existing method. For showing the superiority of the proposed method, we suggest the cost models for the proposed and existing ones, and perform extensive simulations based on the TPC-H benchmark.

양궁 선수의 마음챙김 능력 향상을 위한 심리훈련 프로그램 적용

김진호(Kim, Jin-Ho),오원석(Oh, Won-Seok) 한국사회체육학회 2017 한국사회체육학회지 Vol.0 No.67

The purpose of this study is to investigate the effects of mindfulness training with psychological techniques in a professional archery team in South Korea. First of all, it is conducted to find the changes in mindfulness through the KIMS during the mindfulness training, and to analyze the changes in both mindfulness and psychological technique factors. After ten times of meditation (1h-1h30m/1d), ACT and MAC based on the mindfulness training program, there were significant positive influences of psychological factors such as techniques, acceptance, concentration behavior and attention behavior on an intervention group compared to a control group, resulting in KIMS. Although there were no significant differences in confidence and teamwork in the intervention group after the psychological techniques, there were positive effects on willpower, goal setting , concentration, anxiety control and imagery statistically in the intervention group. In conclusion, mindfulness training has positive effects on the mindfulness in Korean archers. This training also has a positive influence on psychological technique factors such as attention, imagery, concentration and anxiety control. According to previous literatures, it is proved that there were positive effects on the psychological technique factors with the changes in mindfulness. Therefore, it is required to develop tools which can measure the mindfulness and to apply the correlation of mindfulness and psychological techniques to the field.

건설공사의 Constructability 이론과 적용사례에 관한 연구 - 일본의 사례연구를 중심으로 -

김진호,임남기,Kim, Jin-Ho,Lim, Nam-Gi 한국건축시공학회 2002 한국건축시공학회지 Vol.2 No.2

In this study, attempts to analyze the case study of production design were carried out through: 1) exploration of the factors influencing the interface between architectural and production design phases; 2)application of precast technologies. Building design and construction planning in Japan may be characterized by ample use of Production Design which extends over the whole projects phases. Taking a composite construction system for apartment buildings which allow for alternative combination of different technologies as a case study object, three projects have been chosen to analyze actual process of determining product sub-system and their specification. And the expectancies of this paper are that it can be used as efficient data for improvement of system to systematize Constructability(Buildability) in korea.

국내 데이터베이스기술 활성화를 위한 방안

김진호,Kim, Jin-Ho 한국데이터베이스진흥원 1995 디지털콘텐츠 Vol.5 No.-

EDI시스템에서 메시지저장을 위한 DB모델링 기법(Ⅱ)

김진호,최황규,Kim, Jin-Ho,Choe, Hwang-Gyu 한국데이터베이스진흥원 1994 디지털콘텐츠 Vol.8 No.-

비행체 진입각을 이용한 공중 폭발고도 계측 방법

김진호,Kim, Jinho 한국군사과학기술학회 2017 한국군사과학기술학회지 Vol.20 No.4

This paper proposes a method to measure the airburst height by utilizing a high speed camera. This method might be applied to the test of which flight target is alive after the burst. The proposed method consists of four main steps. The first step is to compute the impact point using the sea surface height. The second step is to compute the height of burst (HOB) by using the distance from the camera to the impact point. This could be different from the real explosion height. That is because the distance from the camera to the burst point is not the same as it from the camera to the impact point. Therefore, the third step is to calculate the approach angle of the flight target with respect to the installed camera. Then, the last step is to compensate the computed height by using the approach angle. The result of the proposed method is compared with it from the triangulation. In this paper, the HOB error is also analyzed regarding the approach angle difference. Based on this analysis, the camera position might be suggested for error reduction.

프로바둑에서 덤의 크기 관한 연구

김진호,Kim, Jin-Ho 한국통계학회 2007 응용통계연구 Vol.20 No.2

바둑에서는 먼저 두는 흑이 선착의 이점을 계속 유지한다면 상대방을 이길 확률이 높아진다. 덤은 백을 쥔 선수에게 이런 불리함에 대한 보상으로 주어지는 것으로서 현재 프로 바둑에서 우리나라와 일본에서는 6집반의 덤이, 대만과 중국에서는 8집의 덤이 적용되고 있다. 본 논문에서는 한국과 일본에서 현재 적용되고 있는 6집반의 덤이 적정한가를 통계적으로 분석하였다. 분석을 위해 5집반 덤이 적용되었던 1989년과 1990년의 577대국 자료와 6집반 덤이 적용된 2003년과2004년의 1,145대국 자료를 이용하였다. 분석 결과 덤이 5집반에서는 흑이 유리하고, 특히 승률이 높은 사람에게만 유리한 것으로 나타났지만 덤이 6집반으로 증가된 뒤에는 집흑의 이점이 나타나지 않음을 확인하였다. 결론에서는 본 연구의 결과가 갖는 시사점과 덤 6집반이 적정한가를 최종적으로 평가하기 위해서 추가적인 분석이 필요한 부분을 제시하였다. In playing Baduk, Black plays first and, thus, can control the pace of a game. Usually a player with black stones plays conservatively to maintain the advantage of playing first. The purpose of dum is to compensate for Black having the first move. Currently, 6.5-point dum is applied in Korea and Japan, while 8-point dum is applied in Taiwan and China. In this study we investigated whether the current size of dum(6.5 points) is optimal, by statistically analyzing and comparing the advantage of taking Black across two data sets with different dun rules. Under the 5.5-point handicap, Blacks won significantly more games than Whites, revealing the advantage of playing first. However, with 6.5-point dum, Black's advantage of playing first was not significant. In Conclusion, implications and future research areas are discussed.