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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.
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.
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.
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.
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.
김진호,이민,황종희,임태영,김세훈,Kim, Jin-Ho,Lee, Min,Hwang, Jong-Hee,Lim, Tae-Young,Kim, Sae-Hoon 한국결정성장학회 2009 韓國結晶成長學會誌 Vol.19 No.6
LPD법을 이용하여 유리 기판 위에 발수/친수 패터닝 기판을 제조하였다. 발수 표면은 거친 표면을 갖는 ZnO 박막을 FAS를 이용한 표면 개질에 의하여 만들어졌고, 친수 표면은 자외선을 조사하여 FAS를 제거함으로써 만들어졌다. Hexagonal ZnO rod는 LPD법에 의하여 ZnO seed 층이 코팅된 유리 기판 위에 수직으로 성장되었다. 침적시간이 증가함에 따라 ZnO rod의 직경과 두께는 증가하였다. 제조된 ZnO 박막의 표면구조, 두께, 결정구조, 투과율과 접촉각은 FE-SEM, XRD, UV-vis와 contact angle meter를 이용하여 측정하였다. $20^{\circ}{\sim}30^{\circ}$의 접촉각을 갖는 친수 ZnO 박막은 FAS 표면 처리에 의해 $145^{\circ}{\sim}161^{\circ}$의 접촉각을 갖는 표면으로 바뀌었다. 제조된 발수 표면은 $300\;{\mu}m$, 3 mm의 dot size를 갖는 shadow mask를 이용하여 자외선을 조사하여 패터닝 되었다. 최종적으로 자외선이 조사된 발수 표면은 친수 표면으로 바뀌었다. Hydrophobic/hydrophilic patterned substrates were fabricated on a glass substrate by a liquid phase deposition (LPD) method. Hydrophobic surface was obtained by modifying ZnO thin films with a rough surface using a fluoroalkyltrimethoxysilane (FAS) and hydrophilic surface was prepared by decomposing FAS on an exposed to UV light. The hexagonal ZnO rods were perpendicularly grown by LPD method on glass substrates with a ZnO seed layer. The diameter and thickness of hexagonal ZnO rods were increased as a function of increases of immersion time. The surface morphology, thickness, crystal structure, transmittance and contact angle of prepared ZnO thin films were measured by field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), UV-visible spectrophotometer (UV-vis) and contact angle measurement. Hydrophilic ZnO thin films with a contact angle of $20^{\circ}{\sim}30^{\circ}$ were changed to a hydrophobic surface with a contact angle of $145^{\circ}{\sim}161^{\circ}$ by a FAS surface treatment. Prepared hydrophobic surface was pattered by an irradiation of UV light using shadow mask with $300\;{\mu}m$ or 3 mm dot size. Finally, the hydrophobic surface exposed to UV light was changed to a hydrophilic surface.