국산버터의 지질에 (脂質) 관한 연구

유제현,김용일,정의용 ( Jae Hyeun Yu,Yong Il Kim,Eui Yong Chung ) 한국낙농학회 1982 韓國酪農學會誌 Vol.4 No.1

돈의 혈정단백질에 관한 연구

이기만,한상기,정의용 ( Khi M . Lee,Sang K . Han,Eui Y . Chung ) 한국축산학회 1984 한국축산학회지 Vol.26 No.4

The phenotypes, genotypes and its gene frequency in genetic variant of Transferrin (Tf) and Pre-albumin (Pa) in serum proteins from total 134 individual pigs, Large White (LW), Duroc (D), Berkshire (B), Landrare (L) and Crossbred (C.B), reared in Korea were investigated by means of starch gel electrophoresis and their gene frequencies and genetic similarities were compared with those of foreign Pig breeds. The results are summarized as follows: 1. Tf and Pa of serum protein in pigs were controlled by co-dominant autosomal allelic gene of TF^A and Tf^B, and Pa^A and Pa^B, respectively. 2. In the phenotypes of Tf of LW, B, L and C.B breeds, Tf AB and Tf BB genetic variants were observed. In the D breed only Tf BB variant was found and the Tf AA homozygous was not observed in all breeds. In the phenotypes of Pa, genetic variants of Pa AA, Pa AB and Pa BB were commonly observed in all breeds. However, one pig of Tf AB heterozygous was appeared in the L breed. It was supposed to crossbred pig because of including A gene. Therefore, it was considered that the purity of a boar and a breed sow in Korea was in need of reexamination. Distribution of the phenotypes of serum protein loci in all the breeds with the exception of C.B breed agrees with Hardy - Weinberg equilibrium. 3. The gene frequencies of Tf B in LW, B, L, D and C.B breeds were 0.714, 0.833, 0.917, 1.000 and 0.160, respectively. In the Pa the LW, D and B breeds showed high gene frequency of the Pa^A variant with 0.571, 0.625 and 0.667, but Pa^B variant showed low gene frequency with 0.429, 0.375 and 0.333, respectively. However, Pa^B with a frequency of 0.583 was slightly higher than that of Pa^A (0.417) in the L breed. Frequencies of 0.571, 0.625 and 0.667 for the LW, D and B breeds showed high gene frequency of the Pa^A, whereas Pa^B showed low gene frequency (0.429, 0.375 and 0.333, respectively). The Pa^B with 0.604 gene frequency in C.B breed was also high, but Pa^A was in low gene frequency of 0.396.

오류 역전도 알고리즘의 학습속도 향상기법

심범식(Shim Bum Sik),정의용(Jung Eui Yong),윤충화(Yoon Chung Hwa),강경식(Kang Kyung Sik) 한국정보처리학회 1997 정보처리학회논문지 Vol.4 No.7

The Error BackPropagation (EBP) algorithm for multi-layered neural networks is widely used in various areas such as associative memory, speech recognition, pattern recognition and robotics, etc. Nevertheless, many researchers have continuously published papers about improvements over the original EBP algorithm. The main reason for this research activity is that EBP is exceeding slow when the number of neurons and the size of training set is large.In this study, we developed new learning speed acceleration methods using variable learning rate, variable momentum rate and variable slope for the sigmoid function. During the learning process, these parameters should be adjusted continuously according to the total error of network, and it has been shown that these methods significantly reduced learning time over the original EBP. In order to show the efficiency of the proposed methods, first we have used binary data which are made by random number generator and showed the vast improvements in terms of epoch. Also, we have applied our methods to the binary-valued Monk''s data, 4, 5, 6, 7-bit parity checker and real-valued Iris data which are famous benchmark training sets for machine learning.

유우개량을 위한 유단백질의 유전적 다형에 관한 연구 Ⅱ. β- Casein 및 β- Lactoglobulin 의 유전적 변이체

한상기(Sang K . Han),이기만(Khi M . Lee),정의용(Eui Y . Chung),장경진(Kyung J . Jang) 한국축산학회 1984 한국축산학회지 Vol.26 No.3

Genetic variants of the two milk proteins, β-casein (β-Cn) and β-lactoglobulin(β-Lg), from 138 individual Holstein cattle reared in Korea were investigated by means of starch-gel-urea electrophoresis and their phenotypes, genotypes, gene frequencies, linkage of gene and genetic similarities were compared with those of foreign Holstein and other breeds. The results are summarized as follows: 1. The milk proteins were genetically polymorphic in cattle and were controlled by codominant autosomal allelic genes of βCn A1, βCn A2, β-Cn A3, and βCn B(4 types), and (β-Lg A and β-Lg B(2 types). 2. The phenotypes showed the following distribution of the two milk protein loci: β-Cn A1 A1 34, A1A2 55, A2A2 30, A1A3 4, A2A3 7, A1B 3, A2B 5; βLg AA 25, AB 73, BB 40. The numberofphenotypescorresponded closely to expectations of Hardy-Weinberg equilibrium (β-Cn: 0.9 $gt;P $gt; 0.8, β-Lg: 0.7 $gt; p$gt;0.5). 3. Gene frequencies for genetic variants of the milk protein loci were determined by counting identified alleles. In the β-Cn loci, the β-Cn A1 and A2 variants were predominant with a frequency of 0.471, 0.460, respectively. However, the β-Cn A3 and β-Cn B genes were rare (0.040 and 0.029, respectively). Gene frequencies of β-Lg were 0.446 and 0.554 for alleles A and B, so frequency of the β-Lg^B variant was slightly higher than that of β-Lg A variant. 4. Genetic linkage of the casein loci was αs₁-Cn^B/β-Cn^A 116, αs₁-Cn^(BC)/β-Cn^A 14, and αs₁-Cn^(BC)/β-Cn^(AB) 8. The most close linkage of gene between the αs₁-Cn^B and β-Cn^A has been observed. 5. These results indicate that gene frequencies of the milk protein loci of Holstein cattle in Korea are fairly similar to those of foreign Holstein, but are markedly different from those of other European dairy breeds and Korean native cattle, especially Hariana breeds of Zebu.

유우개량을 위한 유단백질의 유전적 다형에 관한 연구 Ⅰ. αS1 - Casein 및 K - Casein 의 유전적 변이체

한상기(Sang K . Han),이기만(Khy M . Lee),정의용(Eui Y . Chung),장경진(Kyung J . Jang) 한국축산학회 1984 한국축산학회지 Vol.26 No.3

Genetic variants of αs₁-casein (αs₁-Cn) and K-casein (k-Cn) in milk proteins from 138 individual Holstein cattle in Korea were investigated by means of strach-gel-urea electrophoresis and the appearance of phenotypes, gene frequencies and genetic similarities were compared with those of foreign Holstein and of her breeds. The results are summarized as follows: 1. The milk proteins in cattle were controlled by codominant autosomal allelic genes of 9αs₁-Cn^A and αs₁-Cn^B(2 types), and K-Cn^A and K-Cn^B (2 types). 2. The distribution of phenotypes in each milk protein loci was αs₁-Cn BB 124, BC 14; K-Cn AA 76 Ab 49, BB 13. The number of phenotypes coxesponded closely to expectation of Hardy-Weinberg equilibrium (αs₁-Cn:0.7 $gt;P$gt;0.5, k-Cn;0.7$gt;P$gt;0.5). 3. Gene frequencies for genetic variants of the milk protein loci were analyzed. By the predominant allele in αs₁-Cn was αs₁-Cn B with a frequency of 0.949, whereas αs₁-CnC was in low gene frequency (0.051). Among the two alleles for K-Cn, K-Cn A gene showed to occur in high frequency (0.728). However, the Kin B was in low gene frequency (0.272).

표고 톱밥재배용 산조 701호의 품종육성 및 재배현황

노종현,김경진,이병석,김선철,김인엽,최선규,권혁우,이원호,정의용,정남훈,고한규,Noh, Jong-Hyun,Kim, Kyung-Jin,Lee, Byung-Seok,Kim, Seon-Cheol,Kim, In-Yeop,Choi, Sun-Gyu,Kwon, Hyuk-Woo,Lee, Won-Ho,Joung, Eui-Young,Chung, Nam-Hun,Ko, Han- 한국버섯학회 2020 한국버섯학회지 Vol.18 No.3

표고는 우리나라를 포함한 동북아시아 전역에서 오랫동안 식용으로 애용되고 있는 대중적 버섯으로 맛과 향이 독특하다. 또한 약리적인 효능이 과학적으로 밝혀졌다. 표고는 원목재배와 톱밥재배에 의해 생산되며 원목재배 기간은 4~5년인데 반해 톱밥재배는 6개월로 재배기간이 짧아 원목재배에서 톱밥재배로 빠르게 전환되고 있다. 특히 산조 701호는 중고온성 품종으로 우리나라의 표고 톱밥재배 대표적인 여름철 품종으로 재배임가에 널리 알려져 있으며, 임가 소득에 기여하고 있다. 본 연구에서는 표고 톱밥재배 품종 중에서 산조 701호의 육성내력과 다양한 실증시험, 국산품종 보급확대 등 우리나라 표고산업 발전에 기여한 성과를 기술하였다. The oak mushroom (Lentinula edodes) is a popular edible mushroom that has long been cultivated and eaten throughout Northeast Asia (including Korea). Its taste and flavor are unique. Oak mushrooms are cultivated on logs and in sawdust. The cultivation period on logs is 4-5 years, while the cultivation period in sawdust is 6 months, which is rapidly driving a shift from log to sawdust based cultivation. In particular, the Sanjo 701ho cultivar of L. edodes is a mid-range to high-temperature variety that is widely known for its suitability for summer cultivation on sawdust in Korea. This study summarizes new developments and achievements in the oak mushroom industry in Korea, and details the cultivation history of Sanjo 701ho, its culturing characteristics, various demonstration tests, and the expansion of domestic varieties.