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홍종태,최상경,김기표,Hong, Jong-Tae,Choe, Sang-Gyeong,Kim, Gi-Pyo 한국시스템엔지니어링협회 2005 시스템엔지니어링워크숍 Vol.6 No.-
전차탄의 철갑기술과 전차의 방호기술의 경쟁적인 연구개발로 성능이 지속적으로 발전되면서 전차방호면에서는 피탄되기전에 탄을 인식하여 파괴하는 능동파괴장치로,대전차 기술면에서는 취약한 전차의 상부를 발사후 망각개념의 지능탄으로 타격하는 기술로 발전되고 있다. 본 논문에서는 군사선진국들이 개발중인 전차포 지능찬의 특성을 조사하고 새로운 체계모델을 설정하여 비교상쇄연구를 수행하였으며, 향후 무기체계로의 가용성을 분석하였다.
발효방법에 의한 감염가금의 분해 및 발효소독 특성에 관한 연구
홍종태,유병기,김혁주,이성현,박경석,오권영,김대근,이진주,Hong, J.T.,Yu, B.K.,Kim, H.J.,Lee, S.H.,Park, K.S.,Oh, K.Y.,Kim, D.G.,Lee, J.J. 한국축산환경학회 2010 축산시설환경학회지 Vol.16 No.2
전염병발생 감염가금 매몰처리방법은 침출수 및 악취발생 등 환경오염의 원인이 되고 있어 폐사가금의 처리문제가 중요한 현안으로 대두하고 있다. 본 연구에서는 친환경 처리방법으로 감염가금 처리형태와 계분, 톱밥 등을 혼합한 퇴비화방법이 분해특성 및 발효 소독에 미치는 영향을 분석하였다. 연구결과, 소형 포트시험에서 가금 통처리에 비해 가금을 절단살균 처리한 경우 분해가 잘 되고 악취발생도 상대적으로 적게 나타났으며, 여기에 고온성 미생물을 처리한 경우 조기에 온도는 상승되었으나, 발효포트 규모가 소형으로 온도상승 및 온도지속기간이 길지 않았다. 그러나 절단살균한 가금처리량을 증대하여 중층처리법에 의한 발효시험결과 1일 만에 $54^{\circ}C$까지 온도가 상승되고 이후 4주간 $55^{\circ}C$ 이상 유지되었고, 분해도 잘 되었으며 악취발생도 하우스 외측에서는 경미하게 느끼는 정도인 것으로 나타났다. 또한 발효소독 효과를 알아보기 위하여 AI, ND를 분변에 접종하여 $56^{\circ}C$ 조건에서 바이러스의 증식여부를 조사한 결과 AI virus의 경우 60분 처리, ND의 경우 30훈 처리 이후 생존이 인정되지 않았다. 따라서 전염병 발생지역에서 가금류를 현지 살균한 후 사육장내의 분변, 톱밥 등을 혼합하여 퇴비화한다면 환경오염을 줄이고 발효소독 효과도 높일 수 있을 것으로 예상되어 금후 관련분야에서 퇴비이용 작물재배 적응성, 안전성 등 관련연구가 필요할 것으로 판단된다. Recently, the treatment of dead poultry has become more important issue because, the infected poultry, which was buried under the ground, causes environmental contaminations such as steep water and reek occurrence, etc. Therefore, in this study, we investigated the type of treatment and the composting methods influencing to the characteristics on decomposition and fermentative disinfection of dead poultry with poultry manure and sawdust. The results of the port tests showed that amputated poultry treated by the cut-sterilization were not only more decomposed, with less smell compared to the non-treated poultry carcass. When we treated thermophilic microorganism such as bacillus in this amputated poultry, the temperature of treated poultry increased much fester, the fermentation temperature didn't rise and not maintained constantly for long time due to the small size of the fermentation port. On the other hand, we did fermentation test by the layered disposal method with more poultry. In this experiment, the temperature of fermented poultry rose to $54^{\circ}C$ in a day and maintained around $55^{\circ}C$ during four weeks period. With less odor outside the experiment room. further. Also, we inoculated AI virus, ND virus in the excrement for studying the effect of fermentative disinfection. The result of the test revealed that AI virus was destructed within 60 minutes and ND virus was destructed within 30 minutes at the temperature of $56^{\circ}C$. Therefore, the investigations revealed scope of composting method for steam sterilized infected poultry in the originated area mixed with poultry manure, sawdust by thermophilic microorganism could increase the effectiveness of fermentative disinfection and decrease the environmental contamination.
홍종태,최상경,김기표,Hong, Jong Tai,Choi, Sang Kyung,Kim, Ki Pyo 한국시스템엔지니어링학회 2006 시스템엔지니어링학술지 Vol.2 No.1
Advanced military nations have developed anti-tank smart munitions to maximize the effectiveness of the tank combat. In this paper we introduced new munition models (KSTAM) for arrack on the top of the tank and analyzed those operation research. To understand the adaptation to the future tank munition we have performed a trade-off study using the proposed models for smart tank munitions which have been developed or are being developed in advanced nations.
양돈 급여에 적합한 원형베일 사일리지 해체·세절·연화 일관시스템 연구 (I)
홍종태,김혁주,유병기,현창식,김성기,유지수,홍영신,서형덕,Hong, Jong-Tae,Kim, Hyuck-Joo,Yu, Byeong-Kee,Hyun, Chang-Sig,Kim, Sung-Kee,Yoo, Ji-Soo,Hong, Young-Sin,Seo, Hung-Dug 한국축산환경학회 2013 한국축산시설환경학회지 Vol.19 No.1
Currently, there was no producing system of TMR for pig feeding in Korea. In this study, we examined unrolling, cutting, and softening for the round bale silage. We designed and developed the prototype system of round bale silage for pig feeding. Unroll method were lower chain conveying and upper belt conveying which includes an hydraulic vertical fodder knife. Gathering and cutting method were rotating auger and flywheel which have 10 cutters, input roller of 280 rpm, and cutter rotating speed of 1,750 rpm. Softening device was rotating hammer in inclined cylinder adjustable to $25^{\circ}C$ and rotating speed up to 1,300 rpm. The prototype system was integrated working for unrolling, cutting, and softening. We found that when the round bale silage in unrolling apparatus cut length of 20 cm to input cutting apparatus, the cutting performance was well in continuous working up to input rate of 1,000 kg/h, the softening apparatus was working well.
RFID이용 전자식 모돈 개체별 액상급이기 개발(1) -RFID를 이용한 모돈 액상급이기 제작 및 성능시험-
김혁주 ( Hyuck Joo Kim ),홍종태 ( Jong Tae Hong ),유병기 ( Byeong Kee Yu ),김상철 ( Sang Cheol Kim ),최규홍 ( Kyu Hong Choi ),장흥희 ( Hong Hee Chang ) 한국농업기계학회 2012 바이오시스템공학 Vol.37 No.6
Purpose: In EU, the animal welfare regulations are strengthening. Also, in Korea, for strengthening of animal protection laws, animal welfare farm certification scheme is being prepared to enforce. To get the certification of animal welfare farm, especially for sows, individual specific feeding in sow group is necessary in accordance with the animal welfare regulation. Also, liquid feeding is reported to be more effective for farrowing as well as dry sow. Therefore, in this study, a electronic liquid sow feeder using RFID which could be fed to farrowing sow simultaneously is developed. Methods: We manufactured a prototype of appropriate elements which were evaluated in the preliminary test for selecting RFID tag, supply pump, mixing type, etc. With the prototype, the performance test for liquid feeding gilt was done in group raising training barn. Results: The performance test result shows the C.V.(coefficient of variation) of liquid mixing and feeding is 0.77∼1.97% and 2.4∼5.3%, respectively, which means the system could feed sows uniformly. The feeding time of pneumatically activated ball valve is 2 seconds per 0.9 kg of liquid feed. The eating time for gilt were 65 seconds in average. Conclusions: The prototype could feed sow uniformly, and deliver the liquid feed 9 times for a sow continuously. Also, total eating time for a sow was 18 minutes in one visit to the prototype of feeding station.