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유기사료원료로서 소나무껍질 추출물 피타민의 브로일러에 대한 항생제 대체효과
김병완,오진석,한완택,박상오,박병성,Kim, Byong-Wan,Oh, Jin-Seok,Han, Ohan-Taek,Park, Sang-Oh,Park, Byung-Sung 한국유기농업학회 2009 韓國有機農業學會誌 Vol.17 No.1
소나무껍질 추출물, 피타민은 인간의 생체 내 여러 가지 생리활성을 높여주는 항산화성 및 항균성 소재로서 널리 알려져 있다. 본 연구는 브로일러에 대한 유기사료 첨가제로서 소나무 껍질 추출물, 피타민의 첨가효과를 조사하기 위하여 피타민 프리믹스가 첨가된 사료를 부화 후 35일 동안 섭취한 브로일러의 혈중지질, 생산성, 도체특성 및 맹장미생물 변화를 연구하였다. 병아리는 대조구, 항생제 첨가구, 피타민 프리믹스 0.1%, 피타민 프리믹스 0.2% 첨가구로 구분하였다. 브로일러 혈중지질은 피타민 프리믹스 첨가구가 대조구 및 항생제 첨가구에 비해서 유의적으로 낮게 나타났다(p<0.05). 브로일러의 체중은 P 0.1% 첨가구와 항생제 첨가구가 서로 비슷하였으며 P 0.2% 첨가구와 대조구에 비해서 유의적으로 높게 나타났다(p<0.05). 도체중, 도체율, 도체중에 대한 가슴살과 다리살 무게비율은 P 0.1% 첨가구와 항생제 첨가구가 서로 비슷하였으며 대조구에 비해서 유의적으로 높게 나타났다(p<0.05). 복강지방 무게비율은 P 0.1%, P 0.2% 첨가구가 항생제 첨가구 및 대조구에 비해서 유의적으로 낮게 나타났다(p<0.05). 흉선 무게지수는 P 0.1%, P 0.2% 첨가구와 항생제 첨가구가 서로 비슷하였으며 대조구에 비해서 유의적으로 높았다(p<0.05). 장 내 Bifidobacteria는 P 0.1% 첨가구와 항생제 첨가구가 대조구 및 P 0.2% 첨가구에 비해서 유의적으로 높았다(p<0.05). 본 시험에서 나타난 중요한 점은 피타민 5.0%를 함유하는 프리믹스 0.1%를 브로일러 사료에 부화 후 35일 동안 첨가 급여해 줌으로서 항생제 첨가와 동일한 브로일러의 생산성을 유지할 수 있다는 사실이었다. Pitamin is a component of pine bark extract that exhibits antimicrobial activity and a variety of physiological effects. This study was earned out to investigate the effects of dietary pitamin as an organic livestock feed additive in broiler chickens. A 35 day trial was conducted to determine the influence of dietary premix containing 5% pitamin; investigated parameters included blood lipids, growth performance, quality characteristics of carcasses, and changes of caecal microbials in broiler chickens. Chickens were randomly divided into groups that were untreated (control), treated conventionally with antibiotics in the absence of premix, received 0.1 % or 0.2% premix containing 5% pitamin. Plasma lipids were lower in groups fed diets with pitamin premix (p<0.05). The body weight gain from broiler chickens fed with the diet containing 0.1% pitamin premix and antibiotics was similar, and was significantly higher than that of the other groups (p<0.05). The weight of breast muscle and thigh meat of carcasses was similar, and was higher than that of the control group (p<0.05). Abdominal fat and thymus index from chickens receiving either pitamin-supplemented premix was significantly lower and increased, respectively, that of the antibiotic and control groups (both p<0.05). The chickens on the pitamin premix-supplemented diets evidenced significantly higher caecal levels of Bifidobacterium species as compared with the chickens on the control diet (p<0.05). These results suggest that feeding a diet supplemented with a 0.1% premix containing 5.0% pitamin for 35 days maintains the production of broiler chickens at a level comparable to that obtained from the use of antibiotics.
김다빈(Da-Bin Kim),김아연(A-Yeon Kim),김태형(Tae-Hyung Kim),김현지(Hyeon-Ji Kim),박혜진(Hye-Jin Park),최지은(Ji-Eun Choi),김병완(Byung-Wan Kim),이병권(Byong-Kwon Lee) 한국컴퓨터정보학회 2021 한국컴퓨터정보학회 학술발표논문집 Vol.29 No.2
현재 코로나 19로 인한 비대면 상황이 지속되면서 온라인 쇼핑의 수요가 증가함에 따라 불필요한 의류자원 낭비 증가와 온라인 거래에서의 배송문제가 제기되고 있다. 본 논문은, 위치기반 서비스 기술을 활용한 의류를 공유할 수 있는 의류대여 서비스를 제안하고, 시스템을 구축해 봄으로써 앞에서 제기된 문제점을 해결하고자 한다. 의류대여 플랫폼을 제공하고 이용자와 대여자가 직접만나 직거래를 한다. 이로써 새로운 거래문화 형성 및 사회적 자원낭비 감소효과에 도움을 줄 수 있는 의류대여 플랫폼을 제안한다.
오승민,김문주,팽경룬,이배훈,김지융,베페카두,김시철,김경대,김병완,조무환,성경일,Oh, Seung Min,Kim, Moonju,Peng, Jinglun,Lee, Bae Hun,Kim, Ji Yung,Chemere, Befekadu,Kim, Si Chul,Kim, Kyeong Dae,Kim, Byong Wan,Jo, Mu Hwan,Sung, Kyung Il 한국초지조사료학회 2018 한국초지조사료학회지 Vol.38 No.1
본 연구는 혼파초지 수량예측모형에서 기후특성이 뚜렷한 지역의 자료 제거 및 지역별 구분을 통해 건물수량과 하고일수 간 상관관계를 검토하였다. 데이터세트는 총 582점으로 11개 지역으로 분류되며 혼파조합은 총 41가지였다. 변수에서 반응변수는 건물수량 이었으며 설명변수는 하고일수를 포함한 5가지의 기상변수를 이용하였다. 통계방법은 산점도, 기술통계량 및 상관분석을 거쳐 다중회귀분석을 통해 건물수량과 하고일수 간 상관관계를 확인하였다. 산점도 분석 결과 데이터세트를 지역별로 구분하였을 때 9개 지역 중 7개에서 건물수량과 하고일수 간 부(-)의 상관관계가 나타나 지역을 구분할 필요가 있었으며 대표본 근사이론을 적용할 수 있었던 5개 지역(화성, 수원, 대전, 시흥 및 광주)을 선정하였다. 5개 지역의 상관분석 결과 3개 지역(화성, 수원 및 시흥)에서, 다중회귀분석결과 화성에서 건물수량에 대한 하고일수의 효과가 부(-)로 나타났다. 따라서 혼파초지의 건물수량에 대한 하고일수의 상관관계는 지역별로 구분하였을 때 풀사료 생산이론과 일치하여 수량예측모형의 정밀도를 높일 수 있을 것으로 판단하였다. Yield prediction model for mixed pasture was developed with a shortage that the relationship between dry matter yield (DMY) and days of summer depression (DSD) was not properly reflected in the model in the previous research. Therefore, this study was designed to eliminate the data of the regions with distinctly different climatic conditions and then investigate their relationships DMY and DSD using the data in each region separately of regions with distinct climatic characteristics and classify the data based on regions for further analysis based on the previous mixed pasture prediction model. The data set used in the research kept 582 data points from 11 regions and 41 mixed pasture types. The relationship between DMY and DSD in each region were analyzed through scatter plot, correlation analysis and multiple regression analysis in each region separately. In the statistical analysis, DMY was taken as the response variable and 5 climatic variables including DSD were taken as explanatory variables. The results of scatter plot showed that negative correlations between DMY and DSD were observed in 7 out of 9 regions. Therefore, it was confirmed that analyzing the relationship between DMY and DSD based on each region is necessary and 5 regions were selected (Hwaseong, Suwon, Daejeon, Siheung and Gwangju) since the data size in these regions is large enough to perform the further statistical analysis based on large sample approximation theory. Correlation analysis showed that negative correlations were found between DMY and DSD in 3 (Hwaseong, Suwon and Siheung) out of the 5 regions, meanwhile the negative relationship in Hwaseong was confirmed through multiple regression analysis. Therefore, it was concluded that the interpretability of the yield prediction model for mixed pasture could be improved based on constructing the models using the data from each region separately instead of using the pooled data from different regions.
스마트디바이스기반 상생형 패어런팅서비스 관련 비즈니스 모델 연구
김병완(Kim, Byung Wan),현은령(Hyun, Eun Ryung) 한국디지털디자인협의회 2013 (사)한국디지털디자인협의회 conference Vol.2013 No.4
Recently, as the prevalence of smart devises is rapidly spreading, the age of the Smart life is on its way. Many industrial companies are very interested in developing design technical skills, which help in spreading the contents provision through utilizing multidisciplinary approach. It is very significant task to create the core sector of contents’ distribution, which might be able to provide the space to collect dispersed contents within it. The development of this service produces the economic profit of small and medium-sized businesses of ability. Also, the research will try to propose one of the latest hot issues in Korea, childbirth encouragement welfare policy, applying Benefits Parenting Service Business Model. This service might be utilized for vulnerable members of society, including such as females, children, international marriage women immigrants, who effectively understand different cultural aspects through using this application service. Furthermore, the research is begun with the notion that design technical skill might become the tool to create the added value of futurity industry and to promote the public interests for building a welfare-state-realization. As the result, the researcher anticipates that this service contributes to the economic profit of related companies and national industry through constructing global markets. In addition to economic profit from diverse perspectives, the service might make a great contribution to policies in response to low fertility for country.
김병완(BYOUNG-WAN KIM),홍도천(DO-CHUN HONG),홍사영(SA-YOUNG HONG) 한국해양공학회 2006 韓國海洋工學會誌 Vol.20 No.3
This paper investigates wave loads of ships that suffer sinkage due to flood in a compartment caused by damage on the of the hull. By analyzing ships with various sizesof damage opening, the influence of opening size on ship response in investigated. The motion of the damaged ship in analyzed by using the boundary element method, based on three-dimensional potential theory, considering hydrodynamic pressure in the flooded compartments. The shear forces, bending moments and torsional moments are calculated by the direct integration of the three dimensional hydrodynamic pressure on the outer and inner hulls. A RORO passenger ship with length of 174.8 m is considered in the numerical example, and results for wave loads are discussed.
부체 개수에 따른 가동물체형 파력발전기 VLCO 성능비교
김병완(BYOUNG WAN KIM),조석규(SEOK KYU CHO),홍사영(SA YOUNG HONG),홍석원(SEOK WON HONG),양동순(DONG SOON YANG) 대한조선학회 2011 대한조선학회 학술대회자료집 Vol.2011 No.6
KEPRI(Korea Electric Power Research Institute) developed a new movable wave energy converter which comprises linked PTO(Power Takeoff) and VLCO(Variable Liquid Column Oscillator). And, comparable performances of the VLCO system were investigated. The proposed VLCO system has two floating bodies. If it has three bodies, the PTO performances will be changed. This study numerically analyzes the behavior of 3-body VLCO system and compares its performance with 2-body system. From the analysis results, some findings about the effect of number of bodies on VLCO's performance are discussed.