http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
박수봉 ( Soo Bong Park ),강희설 ( Hee Seol Kang ),( Aditi Sharma ),( Chang Gwon Dang ),이승환 ( Seung Hwan Lee ),박병호 ( Byoung Ho Park ),최연호 ( Yeon Ho Choy ),김형철 ( Hyeon Cheol Kim ),최태정 ( Tae Jeong Choi ),이승수 ( 한국축산학회 2014 축산기술과 산업 Vol.5 No.1
한우는 타우린(bos taurus) 계열의 한국 고유의 품종으로 약 5000년 전부터 역우로서 우리민족과 함께해온 매우 고유한 품봉이다. 초기 한국의 농촌지역에서 역우로서 사용되어 오다가, 한국사회가 급격히 발전하면서, 1960년부터 역우에서 육우로 개량을 시작하였다. 한우고기는 한국 국민들에게 매우 유용한 단백질 공급원으로 자리매김하였고, 농가소득의 일등공신이 되어왔다. 아울러, 한구고기는 한국인들이 가장 선호하는 고기로 각광을 받고 있다. 따라서, 한우 연구자들의 주요 연구목적은 한우의 맛을 조절하는 육질연구로서, 대표적으로 개량, 사양, 번식 및 유전체 연구가 활발하게 진행되어 오고 있다.특히 본 리뷰논문에서는 1980년대 시작한 한우개량사업을 중심으로 한우품종의 기원, 개량프로그램, 유전체연구를 통한 효율적 개량에 관한 내용을 폭넓게 다루고 있으며, 특히 전총적인 개량방법과 신 개량방법중 하나인 유전체선발방법의 비교를 통하여 앞으로 한우개량이 나아갈 방향을 제시하였다.
돼지 난포란의 성숙과 수정에 대한 성숙배지에 첨가된 난포액의 영향
박수봉,박항균,입곡명 ( S . B . Park,H . K . Park,Akira Iritani ) 한국축산학회 1990 한국축산학회지 Vol.32 No.2
The purpose of these experiments were to investigate the effect of follicular fluid supplemented to maturation medium on the maturation and fertilization of porcine follicular oocytes. The results obtained were as follows. In the media with MFF and LFF, the rates of maturation division of porcine oocytes in vitro were 82% and 80%, respectively, and the proportion of oocytes matured to metaphase Ⅱ become nearly constant after 39h of culture. However, the rates of maturation of porcine oocytes in medium with FCS 10% were 60% and 79% at 39 and 42h, respectively. The fertilization rate of oocyte cultured in the medium with FCS 10% is 99%. When the oocytes matured in medium with MFF and LFF were fertilized, fertilization rates were 42% and 54,%, respectively. The male pronucleus formation rates of oocytes cultured in the media with FCS 10% MFF 10% and LFF 10% concentrations were 54, 74 and 84%, respectively and were increased through culture in media supplemented with follicular fluid. The present results clearly demonstrate that follicular fluid promoted the maturation of oocytes and male pronucleus formation.
체외 배양시 과립막세포와 공배양된 돼지 난포란의 성숙과 수정
박수봉,박항균,입곡명 ( S . B . Park,H . K . Park,Akira Iritani ) 한국축산학회 1990 한국축산학회지 Vol.32 No.1
The present study was undertaken to examine the maturation and fertilization of porcine oocytes cocultured with granulosa cells. The results obtained were as follows. The percentages of oocytes reaching metaphase Ⅱ by GC -free culture and coculture with MGC and LGC were 32, 28 and 24% at 33h, respectively. In the culture from 33h to 42h, rates of oocyte maturation showed no difference among experimental groups. The fertilization rates of oocytes matured by GC-free culture and coculture with MGC and LGC were 92, 97 and 94%, respectively, Male pronucleus formation rates of oocytes matured by GC-free culture and coculture with MGC and LGC were 49, 55 and 78% respectively and markedly increased by coculture with LGC. The present results suggest that coculture with the membrana granulosa cells does not affect the incidence of maturation, and that pronucleus formation was promoted through coculture with LGC.
박수봉,박종안,Park, Soo-Bong,Park, Jong-An 한국음향학회 1995 韓國音響學會誌 Vol.14 No.1
본 논문에서는 신경망 학습에 의한 영상분류 알고리즘을 개선하였으며, 이것은 입력패턴 생성부와 분류을 위한 역전파 알고리즘에 의한 광역신경망으로 구성된다. 입력패턴을 위한 특징값으로는 자기조직화 형상지도 학습에 의해 얻은 코드북 데이타를 특징벡터로 이용한다. 이것은 입력벡터로서 원영상에 충실하면서 입력 뉴런수를 감소시킨다. 분류기에 사용된 광역망 알고리즘은 가중치와 유니트 오프셋 제어가 가능하도록 역전파 알고리즘에 제어부와 어드레스 메모리부를 삽입하였다. 실험결과 이들 분류기는 학습시 국소최소점에 빠지지 않게 되며, 대규모 신경망을 구현하고자 할 때 망구조를 간단히 할 수 있다. 또한 이것은 동작속도를 크게 개선할 수 있다. In this paper, we improve an image classifier algorithm based on neural network learning. It consists of two steps. The first is input pattern generation and the second, the global neural network implementation using an improved back-propagation algorithm. The feature vector for pattern recognition consists of the codebook data obtained from self-organization feature map learning. It decreases the input neuron number as well as the computational cost. The global neural network algorithm which is used in classifier inserts a control part and an address memory part to the back-propagation algorithm to control weights and unit-offsets. The simulation results show that it does not fall into the local minima and can implement easily the large-scale neural network. And it decreases largely the learning time.
박수봉,박항균,입곡명 ( S . B . Park,H . K . Park,Akira Iritani ) 한국축산학회 1990 한국축산학회지 Vol.32 No.1
The present study was conducted to investigate the optimum conditions of in vitro fertilization by ejaculated boar spermatiozoa capacitated in a defined medium. When fresh ejaculated boar spermatozoa were preincubated for 4h with elevated sperm concentration fertilization rates were markedly increased. The fertilization rates by spermatozoa preincubated at the concentrations of 2, 4, 10, 20 and 40×10^8 cells/ml were 12, 30, 50, 76 and 82%, respectively, However, when spermatozoa preserved for 10-12h at 20℃ were preincubated for 4h with elevated sperm concentration fertilization rates were markedly decreased. The fertilization rates by spermatozoa preincubated at the concentrations of 2, 4, 10, 20 and 40×10^8 cells/ml at preincubation were 91, 77, 68, 44 and 8%, respectively. When oocytes matured in vitro were inseminated with spermatozoa at the concentration 1 × I0^6 cells/ml, rates of fertilization and polyspermy were 97 and 87%, respectively, after culture for 20h without changing medium. When oocytes were inseminated with spermatozoa at the different concentrations of 1, 0.5, 0.25 and 0.1×10^6 cells /ml and the medium was changed 5h after insemination, the fertilization rates were 75, 73, 61 and 30%, respectively. The rates of polyspermic fertilization were 58, 47, 40 and 47%, respectively, when oocytes were inseminated with different concentrations of spermatozoa, and there was no difference in the rates of polyspermy fertilization among groups with changing medium. The present results suggested that both sperm preincubation with high concentration and sperm preservation at 20℃ for 10-12h were effective for capacitation ejaculated boar spermatozoa and that a complete block of polyspermy was not achieved in this in vitro fertilization conditions.