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정재정(Jung Jae-Jung) 한국사학회 2007 史學硏究 Vol.- No.88
한일 양국은 최근 5년 동안 역사인식을 둘러싸고 심각한 갈등을 빚었다. 일본정부는 원칙상 근대에 일본이 한국을 침략하고 지배한 사실에 대해 사과하고 반성하는 자세를 견지했지만, 실제로는 총리대신이 야스쿠니신사를 참배하고 문부과학성이 내셔널리즘이 강한 역사교과서를 검정에 합격시켰다. 이에 대해 한국정부는 일본의 역사인식에 진정성이 없다고 강력히 항의하고, 총리대신이 야스쿠니신사 참배를 중지하며, 역사교과서를 수정할 것을 요구했다. 한편 한국과 일본의 민간 레벨에서는 역사갈등을 극복하고 역사화해를 이룩하려는 연대운동이 활발히 전개되었다. 양국의 역사연구자와 역사교육자는 역사인식의 틈을 좁히기 위해 공동연구를 진행하고, 양국의 학생이 함께 읽을 수 있는 공통교재를 개발했다. 그리하여 한일 양국에서 정부레벨의 역사갈등이 심해질수록 이를 극복하기 위한 민간레벨의 역사대화는 오히려 활발해졌다. 앞으로 한일 양국이 역사화해를 이룩하기 위해서는 민간레벨의 역사대화를 더욱 발전시켜야 한다. 그리고 양국의 정부요인이 역사갈등을 부추기는 언동을 하지 못하도록 제어하고 관리하는 시스템을 구축해야 할 것이다. Recently for five years, there has been a long-standing feud concerning the recognition of history between Korea and Japan. Japanese Government apologized officially for the invasion on Korea and the domination of Korea in modern times and it kept a straight posture of reconsideration, but on the other hand, the Prime Minister actually offered worship at the ancestral shrine 'Yasukuni' and the Ministry of Education gave official approval to the history textbook tinctured with nationalism. The Korean Government made a strong protest against it that there is no authenticity in the Japanese historyunderstanding and demanded that the Prime Minister stop the worship of the ancestral shrine 'Yasukuni' and amend the history textbook. Meanwhile, there has been briskly developed a solidarity movement for the reconciliation of history and for overcoming the history conflict on the civil level between Korea and Japan. The researchers and educators of history proceeded a joint-work in order to close the gap of history-understanding and developed common teaching materials for the students of the two countries. The severer the history-conflict is getting on the governmental level, the more vivant is becoming the history-dialogue on the civil level for surmounting the history-conflict. It is needless to say that the history-dialogue should be strengthened in order to make a reconciliation of history between Korea and Japan. Furthermore, we should build the control system for stopping the high government officials' speech and behavior which could instigate historyconflicts.
조사료 종류별 한우 암소의 반추위 영양소 소실율 및 메탄가스 발생에 미치는 영향
하재정(Jae Jung Ha),김병기(Byung Ki Kim),정대진(Dae Jin Jung),이준구(Jun Koo Yi),김대현(Dae Hyun Kim),이제영(Jea Young Lee),오동엽(Dong Yep Oh) 한국데이터정보과학회 2018 한국데이터정보과학회지 Vol.29 No.3
본 연구는 조사료 종류별 한우 암소에서의 반추위내 소실율과 CH4 발생에 미치는 영향에 대해 알아보고자 수행되었다. 공시동물은 Rumen cannula가 장착된 한우 암소를 이용하였고 조사료 종류로는 볏짚, 애뉴얼 라이그라스짚, 클라인 목건초를 각각 처리구별 6두씩 급여하였다. 반추위내 소실율은 nylon bag을 이용한 in situ 방법으로 DM, CP, NDF 및 ADF 소실율을 측정하였다. 연구결과로 DM, CP, NDF 및 ADF 소실율은 클라인 목건초, 볏짚, 애뉴얼 라이그라스짚 순으로 나타났으며, 모든 소실율에서 클라인 목건초가 볏짚과 애뉴얼 라이그라스짚 처리구 대비 유의적으로 높게 나타났다 (p < 0.01). CH4 발생은 시간당 평균 발생량이 애뉴얼 라이그라스짚 (169.89±6.94 mg/hr), 볏짚(139.92±18.89mg/hr), 클라인 목건초 (128.20±4.91mg/hr) 처리구 순으로 분석되었으며, 애뉴얼 라이그라스짚 처리구 대비 클라인 목건초 처리구에서 유의적으로 높게 나타났다 (p < 0.01). The objective of this study was to investigate the effects of different roughage type (rice straw, annual ryegrass straw, and Klein grass hay) on ruminal disappearance characteristics and CH₄ emission in Hanwoo cows. Disappearance rates in the rumen of DM, CP, NDF, and ADF were higher in Klein grass hay, rice straw, and annual ryegrass straw, in that order, with significantly higher (p < 0.01) in Klein grass hay than in rice straw and annual ryegrass. The average hourly CH₄ emissions were as follows; annual ryegrass straw (169.89±6.94 mg/hr), rice straw (139.92±18.89 mg/hr), and Klein grass hay (128.20±4.91 mg/hr). Annual ryegrass straw is significantly higher (p¡0.01) than Klein grass hay. These results suggest that rice straw is a useful feed resource for ruminant production, which is mostly utilized as a domestic feed.
Bipolar HVDC 전송을 위한 비대칭 혼합 MMC 회로구성
정재정(Jae-Jung Jung) 대한전기학회 2020 전기학회논문지 Vol.69 No.3
Among the MMC topologies for bipolar HVDC systems, the asymmetric mixed MMC is considered as promising and attractive circuit due to the cost saving, less loss, DC fault ride-through capability, and free and quick DC bus voltage regulation. In this paper, the reasonable circuit configuration of an asymmetric mixed MMC in bipolar HVDC transmission system is introduced. In the application of asymmetric mixed MMC for the bipolar HVDC system, the induced DC bias voltage into AC transformer at normal operation according to the placement of submodules is investigated and discussed. Furthermore, the optimal submodule arrangement is proposed considering the busbar single line-to-ground fault at AC side of MMC.
김병기,하재정,이준구,오동엽,정대진,최성복,황은경,김수정,이제영,Kim, Byung Ki,Ha, Jae Jung,Yi, Jun Koo,Oh, Dong Yep,Jung, Dae Jin,Choi, Seong Bok,Hwang, Eun Gyoung,Kim, Soo Jung,Lee, Jea Young 한국데이터정보과학회 2016 한국데이터정보과학회지 Vol.27 No.5
본 논문은 계란에 대한 소비자들의 인식을 향상시키기 위해 산란계 종류에 따른 계란품질과 성분조성을 실험 및 분석하였다. 산란개시 32주령에 있는 4개 품종의 청색란실용계 (BC), 연산오골계 (YS), 재래닭 (KN), 백색레그혼 (WL) 총 120수 (각 처리구당 10수 ${\times}$ 3반복 ${\times}$ 4처리구)를 임의 배치하여 생산된 계란의 성분을 분석하였다. 계란의 품질 평가의 경우, BC가 다른 품종에 비하여 호우닛 계수 (82.82),난각강도 (0.37mm) 및 난각두께 ($40.58kg/cm^2$)가 유의적으로 높게 나왔으며, 계란의 콜레스테롤 함량은 BC가 317.58mg/100g로 가장 낮았지만, YS는 381.30mg/100g으로 매우 높게 나타났다 (p<0.05). 그리고 계란의 지방산 조성에서 oleic acid (C18:1n9)함량은 BC가 다른 품종보다 매우 낮았으며, 아미노산의 경우에는 Thronine과 Proline을 제외한 모든 성분에서 대체로 WL종이 다른 품종보다 더 높게 나타났다 (p<0.05). This study was to execute the random arrangement of total 120 heads (10 heads per treatment plot ${\times}$ 3 repeats ${\times}$ 4 treatment plots) for four breeds [Blue arakana commercial Fowl (BC), Yeonsan silky fowl (YS), Korean native fowl (KN), White leghorn fowl (WL)] with the initiation of laying hens at 32 weeks old in order to comparatively analyze egg quality and composition by sorts of laying hens. In case of evaluation of the quality of eggs, this study has shown that BC had higher degree of Haugh unit coefficient (82.82) and in case cholesterol content of eggs, BC had significantly low content as 317.55mg/100g, but YS had rather higher content as 381.30mg/100g. Furthermore, this study has found out that BC had significantly low Oleic acid (C18:1n9) and WL had higher Amino acid content by breeds than those of other breeds (p<0.05).
한방생균제가 한우의 체중, 혈액성상, 면역성 및 육량·육질에 미치는 영향
김병기,하재정,이준구,오동엽,정대진,황은경,김수정,안용근,Kim, Byung Ki,Ha, Jae Jung,Yi, Jun Koo,Oh, Don Yep,Jung, Dae Jin,Hwang, Eun Gyeong,Kim, Soo Jung,Ann, Yong Geun 한국식품영양학회 2016 韓國食品營養學會誌 Vol.29 No.6
This study was a report on 60 heads of Hanwoo steers(5 treatments ${\times}$ 4 heads ${\times}$ 3 repeats). Their start weights were $361.2{\pm}14.39kg$ to $380.5{\pm}27.33kg$; 12.7 to 13.6 months of age. The aim was to investigate the effect of herbal probiotic supplementation on the weight, blood composition, meat quality and immunity in beef. In case of body weight gain, con. 1 plot(183.8 kg) in the early fattening stage, T3 plot(115.1 kg) in the middle fattening stage, and T2 plot(163.3 kg) in the late fattening stage significantly increased(p<0.05). There was a statistically significant difference in the blood content of T-Cho and IgG: con. 1 plot and T1 plot in the early fattening stage, T3 plot and T2 plots in the middle fattening stage, and con. 2 plot and T1~T3 plots in the late fattening stage had higher blood content than that of other treatment plots (p<0.05). In addition, the carcass weight was highest in the T1 plot and T2 plot among the total treatment plots(p<0.05). However, no statistical significant difference was observed in the different treatments; all individual treatment plots(T1~T3 plots) were somewhat higher than the control plots(con. 1~con. 2 plots) with respect to the carcass quantity and carcass quality. Combining and analyzing all results revealed that the dietary addition of herbal probiotics for Hanwoo steers had a positive effect on the improvement of weight, amount of meat, meat quality and immunity.