Study on the Environmental Factors in Pig House

문홍석 순천대학교 대학원 2019 국내박사

This study was carried out to establish the prediction model of productivity of pigs by investigating the effects of temperature and humidity of pig house on the productivity of pigs. In experiment 1, Study on the Temperature Factor in Pig House to Predict Pig Productivity Traits in August to December. The average daily weight gain of weaning pigs was highest in the T2 (p<0.05) and the average daily feed intake was the highest in the T1 (p<0.05). Correlation between the pig house inside temperature and average daily weight gain of weaning pigs was analyzed with parameters of -0.0093X2 + 0.0454X - 0.185 for temperature. Average daily feed intake was analyzed with a parameter of -0.0170X + 0.970 for temperature. Feed conversion ration of -0.0336X + 2.404 was analyzed. The average daily weight gain of piglets was highest in the T2 (p<0.05) and the average daily feed intake was the highest in the T2 (p<0.05). Correlation between the pig house inside temperature and average daily weight gain of piglets was analyzed with parameters of –0.00156X2 + 0.073X - 0.240 for temperature. Average daily feed intake was analyzed with a parameter of –0.00458X2 + 0.211X - 1.351 for temperature. Feed conversion ration of –0.00368X2 + 0.166X - 0.121 was analyzed. In the case of growing pigs, average daily weight gain was the highest at T1 (p<0.05) and average daily feed intake was the highest at T2 (p<0.05). Correlation between the pig house inside temperature and average daily weight gain of growing pigs was analyzed with parameters of -0.0174X + 1.278 for temperature. Average daily feed intake was analyzed with a parameter of -0.00534X2 + 0.250X - 0.999 for temperature. Feed conversion ration of –0.00528X2 + 0.289X - 1.659 was analyzed. The average daily weight gain of the early finishing pigs was the highest in T1 (p<0.05) and the average daily feed intake was the highest in the T2 (p<0.05). Correlation between the pig house inside temperature and average daily weight gain of early finishing pigs was analyzed with parameters of -0.00892X + 1.154 for temperature. Average daily feed intake was analyzed with a parameter of -0.0101X2 + 0.449X - 2.139 for temperature. Feed conversion ration of -0.0118X2 + 0.557X - 3.484 was analyzed. The average daily weight gain of the late finishing pigs was the highest in the T3 (p<0.05) and the average daily feed intake was the highest in the T1 (p<0.05). Correlation between the pig house inside temperature and average daily weight gain of late finishing pigs was for the temperature had no significant parameters. Average daily feed intake was analyzed with a parameter of -0.0351X + 3.688 for temperature. Feed conversion ration of -0.0455X + 4.708 was analyzed. In experiment 2, Study on the Temperature Factor in Pig House to Predict Pig Productivity Traits in January to May. The average daily weight gain of weaning pigs was highest in T3 (p<0.05) and the average daily feed intake was higher in T2, T3, and T4 (p<0.05). Correlation between the pig house inside temperature and average daily weight gain of weaning pigs was analyzed with parameters of -0.00187X2 + 0.101X - 1.0694 for temperature. Average daily feed intake was analyzed with a parameter of -0.000772X2 + 0.0443X - 0.184 for temperature. Feed conversion ration of 0.00865X2 - 0.462X + 7.585 was analyzed. The average daily weight gain of piglets was highest at T3 (p>0.05), and average daily feed intake was higher at T3 (p>0.05). There was no significant difference in the relationship between the temperature of pig house and the average daily weight gain, average daily feed intake, and feed conversion ration of piglets and regression analysis. The average daily weight gain of the early growing pigs was highest in the T2 (p<0.05) and average daily feed intake was higher in T3 treatments (p>0.05). Correlation between the pig house inside temperature and average daily weight gain of early growing pigs was analyzed with parameters of -0.00185X2 + 0.0832X - 0.232 for temperature. Average daily feed intake was analyzed with a parameter of -0.00215X2 + 0.103X + 0.318 for temperature. Feed conversion ration of 0.00337X2 - 0.141X + 3.675 was analyzed. In late growing pigs group, the average daily weight gain was highest in the T3 (p<0.05) and average daily feed intake was higher in T3 (p>0.05). Correlation between the pig house inside temperature and average daily weight gain of late growing pigs was analyzed with parameters of -0.00487X2 + 0.220X - 1.275 for temperature. Average daily feed intake was analyzed with a parameter of -0.00219X2 + 0.0971X + 1.192 for temperature. Feed conversion ration of 0.00748X2 - 0.3403X + 5.739 was analyzed. The average daily weight gain of the early finishing pigs was the highest at T1 (p<0.05) and the average daily feed intake was higher at T1 (p<0.05). Correlation between the pig house inside temperature and average daily weight gain of early finishing pigs was analyzed with parameters of -0.0374X + 1.831 for temperature. Average daily feed intake was analyzed with a parameter of -0.0837X + 4.857 for temperature. Feed conversion ration of 0.0320X + 2.316 was analyzed. The average daily weight gain was the highest at T1 (p<0.05) and the average daily feed intake was higher at T1 (p<0.05) for late finishing pigs. Correlation between the pig house inside temperature and average daily weight gain of early finishing pigs was analyzed with parameters of -0.0177X + 1.367 for temperature. Average daily feed intake was analyzed with a parameter of -0.0370X + 3.125 for temperature. Feed conversion ration of -0.00443X2 + 0.206X + 0.0952 was analyzed. In experiment 3, Study on the Humidity Factor in Pig House to Predict Pig Productivity Traits in August to December. The average daily weight gain in weaning pigs was the highest in the T2 (p>0.05) and the average daily feed intake was higher in the T3 (p>0.05). Correlation between the pig house inside humidity and average daily weight gain of weaning pigs was analyzed with parameters of 0.00307X + 0.331 for humidity. Average daily feed intake was analyzed with a parameter of 0.00226X + 0.509 for temperature. Feed conversion ration was for the temperature had no significant parameters. The average daily weight gain of piglets was the highest in T2 and T3 (p<0.05) and average daily feed intake was higher in T3 (p<0.05). Correlation between the pig house inside humidity and average daily weight gain of piglets was analyzed with parameters of -0.000311X2 + 0.0355X - 0.313 for humidity. Average daily feed intake was analyzed with a parameter of -0.000782X2 + 0.0871X - 1.136 for humidity. Feed conversion ration was for the humidity had no significant parameters. The average daily weight gain during the growing pigs was the highest at T1 (p<0.05) and average daily feed intake was higher in the T1 (p<0.05). Correlation between the pig house inside humidity and average daily weight gain of growing pigs was analyzed with parameters of 0.0117X + 0.331 for humidity. Average daily feed intake was analyzed with a parameter of -0.000996X2 + 0.112X - 1.116 for humidity. Feed conversion ration was for the humidity had no significant parameters. The average daily weight gain during the early finishing pigs was the highest at T1 (p<0.05) and average daily feed intake was higher in the T2 (p<0.05). Correlation between the pig house inside humidity and average daily weight gain of early finishing pigs was analyzed with parameters of -0.000382X2 + 0.0495X - 0.191 for humidity. Average daily feed intake was analyzed with a parameter of -0.00175X2 + 0.212X - 2.504 for humidity. Feed conversion ration of -0.000656X2 + 0.0716X + 0.900 was analyzed. The average daily weight gain during the late finishing pigs was the highest at T1 (p<0.05) and average daily feed intake was higher in the T2 (p<0.05). Correlation between the pig house inside humidity and average daily weight gain of late finishing pigs was analyzed with parameters of -0.000323X2 + 0.0386X - 0.0931 for humidity. Average daily feed intake was analyzed with a parameter of -0.00175X2 + 0.199X - 1.967 for humidity. Feed conversion ration of -0.000865X2 + 0.0886X + 1.245 was analyzed. In experiment 4, Study on the Temperature Factor in Pig House to Predict Pig Productivity Traits. The results of the productivity of the weaning pigs according to the temperature of the pig house showed that the average daily weight gain was the highest in the T2 (p>0.05) and average daily feed intake was higher in T1 (p<0.05). Correlation between the pig house inside temperature and average daily weight gain of weaning pigs was analyzed with parameters of -0.00267X2 + 0.147X - 1.620 for temperature. Average daily feed intake was analyzed with a parameter of -0.00151X2 + 0.0800X - 0.518 for temperature. Feed conversion ration of 0.00746X2 - 0.418X + 7.217 was analyzed. According to the results of the productivity of piglets according to temperature of pig house, average daily weight gain was the highest in T2 and T3 (p<0.05) and average daily feed intake was higher in T1 (p<0.05). Correlation between the pig house inside temperature and average daily weight gain of piglets was analyzed with parameters of -0.00149X2 + 0.0735X - 0.294 for temperature. Average daily feed intake was analyzed with a parameter of -0.00302X2 + 0.145X - 0.698 for temperature. Feed conversion ration of -0.00657X + 1.861 was analyzed. According to the results of the productivity of growing pigs according to the temperature of pig house, the average daily weight gain was the highest in the T2 (p<0.05) and average daily feed intake was higher in the T3 group (p<0.05). Correlation between the pig house inside temperature and average daily weight gain of growing pigs was analyzed with parameters of -0.00326X2 + 0.141X - 0.576 for temperature. Average daily feed intake was analyzed with a parameter of -0.00412X2 + 0.179X - 0.00992 for temperature. Feed conversion ration of 0.00375X2 - 0.160X + 3.792 was analyzed. According to the results of the productivity of early finishing pigs according to the temperature of pig house, the average daily weight gain was the highest in T1 (p<0.05) and average daily feed intake was higher in the T2 (p<0.05). Correlation between the pig house inside temperature and average daily weight gain of early finishing pigs was analyzed with parameters of -0.0128X + 1.321 for temperature. Average daily feed intake was analyzed with a parameter of -0.0336X + 3.399 for temperature. Feed conversion ration of -0.00467X2 + 0.219 + 0.141 was analyzed. The results of the productivity of the late finishing pigs according to the temperature of the pig house showed that the average daily weight gain was the highest in the T1 (p<0.05) and average daily feed intake per day was higher in T1 (p<0.05). Correlation between the pig house inside temperature and average daily weight gain of late finishing pigs was analyzed with parameters of -0.01543X + 1.259 for temperature. Average daily feed intake was analyzed with a parameter of -0.0561X + 4.257 for temperature. Feed conversion ration was for the temperature had no significant parameters. In conclusion, we can predict the daily gain, daily dietary rate, and feed conversion rate of pigs according to the internal temperature of pig house, and predict various information on the marketing day and feed intake of one pigs. In experiment 5, Study on the Temperature Factor in Pig House to Pig Productivity and Meat Quality. The productivity was the highest at 77.25 kg in T1 and the lowest at 58.70 kg in T4 (p<0.05). Feed intake was the highest at 197.32 kg in T1 and lowest at 152.93 kg in T4 (p<0.05). The feed conversion ration was the highest at 2.66 in the T3 and the lowest at 2.41 in the T2 (p>0.05). The highest value of carcass weight was 92.20 kg in T1, and lowest in 79.70 kg in T4 (p<0.05). The back fat thickness was the highest at 22.30 mm in T1 and 15.90 mm in T4 (p<0.05). Carcass grade (1+:1:2) results were 4:3:3 for T1, 3:1:6 for T2, 2:5:3 for T3, and 1:2:7 for T4. The crude fat content of pork was the highest at 3.22% in T2 and 1.53% in T4 (p<0.05). The contents of crude ash were the highest at 1.46% in the T2 and lowest at 1.36% in the T1 (p<0.05). The cholesterol content of the T2 was the highest at 79.17 mg/100g and the lowest at 53.72 mg/100g in T4 (p<0.05). The TBARS and pH of pork meat were not significantly different among treatments (p>0.05). The total microbial counts of pork were the highest at 6.32 log10 cfu/g in T1 and 5.83 log10 cfu/g in T3 (p<0.05). The cooking loss of pork was the highest at 11.16% in T3, and 7.67% in T4 (p<0.05). The water holding capacity, shearing force and meat color were not significantly different between the treatments (p>0.05). In conclusion, there was no significant difference in meat quality of pigs raised according to temperature of pigs. Therefore, these results suggest that the growth of pigs can be predicted by using environmental information such as temperature and humidity in pig house. These studies will not only increase the productivity of the pork industry in the future, but also be applicable to the poultry industry and the Hanwoo cattle industry.

Application of Solar and Geothermal Heating Technology to Minimize Energy Cost in Pig Production

문홍석 순천대학교대학원 2014 국내석사

본 연구에서는 돼지 생산의 환경오염을 줄이고, 에너지 비용을 최소화하기 위한 대체 에너지원으로서 돈사에서 태양열 및 지열 난방 기술을 평가하기 위하여 실시하였다. 1곳의 돈사에 태양열 및 지열 난방 시스템을 설치하여 같은 방법으로 각각 실험을 실시하였으며, 돼지의 성장율, 돈사 내부의 온도, 에너지 소비량, CO2 배출량, 시스템 성능 및 경제성 분석을 실시하였다. 본 연구의 결과는 다음과 같이 요약하였다. 실험 Ⅰ에서는 인큐베이터 돈사에 태양열 난방 시스템을 설치하여 에너지 절약과 환경오염 감소에 미치는 효과에 대해서 평가하였다. 시스템 설치는 에너지 절약과 온실가스 배출량을 저감시키는 태양열 난방 시스템의 효율성을 평가하기 위하여 돼지 실험돈사에 태양열 난방 시스템을 설치하였다. 효율성과 평가는 외부온도와 평균 온도 및 태양광량을 이용하여 계산하였다. 인큐베이터 돈사의 내부온도와 습도를 비교한 결과 하단부 가운데와 안쪽을 제외한 나머지 위치에서는 큰 차이가 없었다. 태양열 난방 시스템 돈사에서 하단부 가운데와 안쪽은 온도가 높게 나타나 유의적인 차이를 보였다 (P<0.05). 태양열 난방 시스템 돈사에 있는 자돈들이 대조구에 비해 높은 증체량을 보였으며 (P<0.05), 낮은 사료 섭취량을 보였다 (P<0.05). 실험기간인 14일 (2013년 9월 10일 ~ 2013년 9월 23일) 동안, 태양열 난방 시스템 사용으로 전략사용량은 대조구에 비해 15% 감소하였다. 전력사용량 감소에 따른 CO2 생산은 15% (137 kg) 감소되었으며, 결과적으로 대조구에 비해서 약 6,129.75원/2주 절약되었다. 종합적으로 이 연구 결과에서는 인큐베이터 돈사에서 태양열 난방 시스템 사용이 에너지 소비량 절감과 CO2 배출량을 감소시킬 수 있음을 보여주고 있다. 실험 Ⅱ에서는 인큐베이터 돈사에 지열 난방 시스템을 적용하여 에너지 절약과 환경오염 감소에 미치는 효과에 대해서 평가하였다. 지열 난방 시스템은 지열 난방 시스템의 효능을 평가하고, 에너지 사용을 최소화시킬 뿐만 아니라 환경오염을 줄이기 위해 인큐베이터 돈사에 설치하였다. 이 실험에서는 인큐베이터 내부 온도, 지열히트펌프의 난방성능지수 (COP), 자돈 사육성적, 에너지 소비량, CO2 배출량 및 경제성 분석을 실시하였다. 인큐베이터 내부의 낮 시간 온도에서는 대조구와 지열 난방 시스템 돈사에서 큰 차이가 없었다 (P>0.05). 그러나 밤 시간 온도에서는 지열 난방 시스템 돈사에서 상단부의 가운데 및 안쪽과 하단부의 가운데에서 낮게 나타나 유의적인 차이를 보였다 (P<0.05). 자돈의 증체량 결과는 0~1주 동안 지열 난방 시스템 돈사에서 유의적인 차이가 나타났다 (P<0.05). 그러나 1~2주, 2~3주 및 0~3주 동안에는 유의적인 차이가 없었다 (P>0.05). 실험기간인 21일 (2014년 9월 17일 ~ 2014년 10월 7일) 동안, 지열 난방 시스템 돈사에서 대조구에 비해 전기사용량이 6.35% (약 65 kWh)이 감소되었으며, CO2 배출량도 6.35% (4.3 kg) 감소되어 결과적으로 전기요금 (약 1,405원/3주)이 감소되었다. 종합적으로, 이 연구 결과에서는 인큐베이터 돈사에서 지열 난방 시스템 사용이 경제적, 환경 친화적일 뿐만 아니라 일반돈사에 비해 사육성적을 개선하는 것으로 나타났다. 그러나, 태양열 및 지열 난방 시스템에 대한 연구는 온실 가스 배출량과 에너지 비용 절감에 관한 효과는 장기적으로 연구가 필요할 것으로 사료된

男女共學制 工業高等學校 女學生들의 學校生活 調査硏究

문홍석 延世大學校 1983 국내석사

능동 정전용량형 전자펜에 관한 연구

문홍석 선문대학교 일반대학원 2017 국내석사

Recent advances in computer technology have changed user interfaces. Traditional interfaces were audiovisual interfaces such as text, sound, and video. However, it has evolved into three-dimensional and a multi-modal based interface to provide information that stimulates the human senses. The simple tool optimized for these interfaces was user’s fingers, but it had limitations in terms of accuracy, speed, and character entry. In this paper, we studied the stylus to overcome these drawbacks. First, the performance has been confirmed for the existing products. This was based on a goal of research. Based on the power consumption of the final prototype of this study, the products on the market had additional functions such as CPU, LED and communication components. However, the power consumption of these accessories was very small, it would be possible to compare existing products with final prototype in this paper. In terms of performance, the prototype showed similar performance results comparison with product on the market. This technology could be defined as a fusion technology of analog pen sensibility technology and electronic pen technology. And with this technology, it was expected to have a competitive edge in the field of electronic pen technology, which is relatively weak compared to Taiwan, China and Japan. 컴퓨터 공학 기술의 발전으로 사용자 인터페이스는 문자, 소리, 영상의 시청각 인터페이스에서 인간의 오감을 자극하는 정보를 제공하기 위해 3차원 인터페이스 및 멀티모달 기반의 사용자에 맞춘 휴먼 인터페이스 기술로 진화하고 있다. 이에 가장 간편하게 사용할 수 있는 도구는 사용자의 손가락이지만 정확성, 속도, 문자입력 등에 있어서 단점이 있다. 본 논문에서는 이러한 단점을 보완하기 위해 스타일러스에 대한 연구를 진행하였다. 기존 시중에 판매중인 제품들에 대한 성능을 확인하였고, 이를 기반으로 목표를 설정한 후 연구를 진행하였다. 본 연구를 진행하며 최종적으로 만들어진 시제품을 기준으로 하여 소비전력에 있어서 시중에 판매중인 제품들에는 CPU, LED 및 통신용 부품 등의 추가적인 기능이 내장되어 있는 제품들도 있어 동등한 비교라 볼 수는 없지만 해당 제품들과 비교하여도 큰 문제가 없는 것임을 볼 수 있으며, 성능에 있어서도 기존 제품들과 비교하여 비슷한 성능을 볼 수 있었다. 기존의 다양한 아날로그 펜 감성기술과 전자펜 기술과 융합을 통하여 대만, 중국, 일본에 비해서 상대적으로 미약한 전자펜 기술분야에서 경쟁력을 가질 수 있을 것으로 보인다.

韓國企業의 海外 直接投資 活性化 方案에 關한 硏究

문홍석 朝鮮大學校 産業大學院 1990 국내석사

Three-dimensional morphometric analysis of the trabecular bone in the human mandible using microcomputed tomography

문홍석 Graduate School, Yonsei University 2002 국내박사

하악골은 신체의 다른 부위와 비교하여 여러 가지 형태적 기능적특징을 가지고 있다. 하지만 가장 큰 특징은 치아가 존재하는 것이다. 이러한 치아의 존재로 인하여 교합력과 같은 외력이 소주골에 직접 전달이 되어 골량이나, 골 구조등에 영향을 미친다. 신체의 골 구조에 대해서는 많은 학자들이 연구하였고 그 중요성에 대하여 언급을 하였으나 하악골에서는 치조골흡수, 치아상실이나 Implant 성공률등에 대하여 골량이나 골 밀도에 관계하여 연구를 했지만 골 구조와 관계하여서는 거의 관심을 기울이지 않은 것이 사실이다. 따라서 본 실험은 하악소주골의 3 차원적인 구조를 분석하여 저작기능과의 관련성을 살펴보고 보다 정확한 생체역학연구를 위한 기초자료를 제시하여 Micro-CT 의 치의학분야에 대한 응용가능성을 위하여 소구치 및 대구치시편을 Skyscan 1072( SKYSCAN, Antwerpen, Belgium)를 이용하여 치조골부위와 하치조신경을 기준으로 한 상,하두 부분의 기저골부위를 촬영 및 분석하여 다음과 같은 결과를 얻었다. 1. 치조골부위에 존재하는 소주골이 기저골부위보다 골량 및 골소주가 많았으며 골 소주의 간격이 좁아서 치조골부위가 보다 치밀한 구조로 이루어져 있었다. 2. 하치조신경을 기준으로 한 상방 과 하방의 기저골의 비교에 있어서는 상방의 기저골에서 높은 골량 및 골 소주의 개수를 나타내고 있으며 낮은 소주간 거리 및 이방성을 나타내어 하방의 기저골보다 치밀한 구조를 보이고 있었다. 3. 치조골에 대한 소구치와 대구치의 비교에 있어서는 대구치의 치조골부위에서 소구치의 치조골부위보다 골량 및 골 소주의 개수가 많았고 낮은 골 소주간의 거리, 이방성의 정도와 낮은 구조형태지수를 나타내어 보다 판상의 형태로서 치밀하게 연결이 되어 교합력을 비롯한 외력에 보다 잘 저항할 수 있는 구조로 되어 있음을 알 수 있었다. 4. 기저골에 대한 소구치와 대구치의 비교에 있어서는 모든 계측항목들이 차이가 없었다. 5. 골량과 다른 계측항목 들과의 상관관계에서는 골 소주간의 거리, 골 소주 개수와 구조형태지수가 비교적 높은 상관관계를 나타내었다. 이와 같은 결과로 볼 때, 하악의 소주골은 치아를 통한 외력에 잘 견딜 수 있는 기능적인 구조로 적절하게 배열이 되어 있는 것으로 여겨지며 대구치 부위에서 보다 명확하였다. 또한 이와 같은 사실은 생역학적 분석을 비롯한 하악골의 연구 시에 고려되어야 할 사항으로 생각된다. The mandible has unique functional and structural characteristics when compared with other skeletal bones of the body. Especially the presence of dentition is considered as the most characteristic features of the mandible. Through the dentition, any external forces such as occlusal force can be transmitted to the bone and effect on the bone mass and structure. There have been numerous studies of the bone structure in the other parts of the body and emphasized on its importance. On the mandible, there have been studies on bone mass and density regarding alveolar bone resorption, tooth loss and implant success rate, however little has been studies on the bone structure. The purpose of this study is to analyze any correlation between trabecular bone structure of the mandible and masticatory function, and the efficacy of micro-CT in biomechanical analysis in dentistry. Skyscan 1072 (SKYSCAN, Antwerpen, Belgium) was used in scanning alveolar and basal bone of premolar and molar regions of the mandible and following results were obtained. 1. In intrasite comparison, the alveolar bone had higher values of bone volume fraction and trabecular number but lower in trabecular separation than the basal trabecular bone. A compacted with a large portion of trabecular bone in alveolar bone could be concluded. 2. When the basal bones superior and inferior to mandibular canal were compared, bone volume fraction and trabecular number at superior region had higher values that were statistically significant. Trabecular separation and degree of anisotropy on the other hand were low, which implies that the basal bone in superior region were more compact in structure. 3. When the same site of molar and premolar regions were compared, a higher bone volume fraction and trabecular number were found in molar alveolar region which implies a compact structure. Trabecular separation, degree of anisotropy and structural model index in molar regions had lower values and it could be concluded that this area had trabecular bone which has more plate- like structure and less polarity of trabecular bone than premolar region, indicating adequately remodeling zone against the external forces. 4. In basal bone, all parameters between premolar and molar regions were statistically not significant. 5. In the relationships between bone volume fraction and other parameters, a linear correlation was found with other parameters and some relationships appear strong such as trabecular separation, trabecular number and structure model index. In reference to the results above, it can be concluded that the structure of mandible is appropriately designed to perform and withstand occlusal forces and masticatory function. It is more clearly noted in the molar regions and these facts should be considered in biomechanical analysis of the mandible.

Study on the environmental factors in pig house to predict pig productivity traits

문홍석 Sunchon National University 2019 국내박사