수수×수단그라스 交雜種과 大豆 間作栽培時 生育段階에 따른 刈取回數 및 生育特性, 乾物收量 粗蛋白質收量에 미치는 影響

全炳台,李相武 建國大學校 自然科學硏究所 1995 建國自然科學硏究誌 Vol.6 No.-

A field experiment was conduted to evaluate growth characteristics, cry matter and crude protein yield according to in Sorghum×Sudangrass hybrid-Soybean intercropping, and number of practicable cutting frequency and decide ideal harvasting time for use of forage and silage. Experiment design was arranged with 14 different treatment as a randomized block design(the same of monocropping and intercropping did 170cm, 220cm, boot head, dough, and yellow stage). The mean plant length of intercropping treatment at the same treatment of growth stage was high at all treatment than monocropping. Soybean showed the highest at dough stage treatment as 145cm but, to boot stage treatment but 220cm treatment showed on the contraty the shortest as 93cm. The intercropping was higher than monocropping at the leaf length of sorghum×sudangrass hybrid, but the leaf width showed multifarious according to number of practicable cutting. Leaf length of soybean was increased from 170cm treatment to boot stage treatment, but decreased from head stage treatment to yellow stage treatment. The stem diameter(means) of intercropping sudangrass at the same treatment of growth stage was higher than monocropping, Especially, in the stem diameter(means) of soghum×sudngrass hybrid, intercropping treatment of boot stage treatment ws the thickest as 11.5mm, monocropping treatment of head stage treatment was the lowest as 7.6mm, stem hardness of intercropping and monocropping at the first cutting time was rapidly hardening after boot stage. Also, In the soybean, stem hardness was rapidly hardening after headstage treatment, and yellow stage treatment was almost hardness as wood. Intercropping treatment at the same treatment of growth stage was higher than monocropping at the leaf numbers(1st, 2nd, 3rd, and 4th cutting time). Leaf numbers of soybean was increased from 170cm treatment to boot stage treatment, but decreased from milk stage treatment to yellow stage treatment. In the leaf ratio of sorghum×sudangrass hybrid (means), intercropping was decreased compare to monocropping. Especially, intercropping was showed below 15%after boot stage. Also, leaf ratio of soybean was high to early growth, but dough and yellow stage treatment were lower than other treatments as 18.8% and 15.0% at leaf ratio Fresh weigh of monocropping treatment at the same treatment of growth stage as highest as 101,700kg/ha, but yellow treatment was the lowest as 67,794kg/ha. Dry matter yield showed a little difference between intercropping and monocropping from 170cm treatment to boot stage treatment, but showed high difference after milk stage. Especially in intercropping treatment, dough stage was the highest as 21,161 kg/ha, but 170cm treatment was the lowest as 12,929kg/ha. In the intercropping and monocropping, 170cm treatment was able to cutting 4 frequency and 220cm treatment and boot stage treatment were able to cutting 3 frequency a year without yield difference. But yellow stage was able to cutting 1 frequency because 2nd cutting showed very low dry matter yield. Protein yield of intercropping treatment at the same growth stage was higher than monocropping on the contrary fresh yield and dry matter yield. Especially, head stage treatment of intercropping treatment was the highest as 1,684kg/ha. The protein yield was high at the intercropping in order of head stage〉milk stage〉boot stage〉dough stage〉220cm〉170cm.

Austenite Stainless鋼의 高溫强度및 破壞擧動에 관한 硏究(Ⅰ) : Creep 强度와 破壞擧動에 관하여 Creep Strength and Fracture Behavior

全泰玉,周原植,金福仁,崔병국,吳世旭 東亞大學校 1980 東亞論叢 Vol.17 No.2

Austenite stainless steel 년 316 has heat treated to austenite structure by heating at 1100℃ for 1hr and suddenly cooling. These specimens has been dealed with aging treatment at 700℃ for 0hr, 2hr, 10hr, and 100hr separately, and then conducted by creep test on the uniaxial state of stress in atmosphere of 600℃. The experimental results are obtained as follows. 1) Creep rupture stain rate has increased by the increasing of aging time. 2) Creep rupture time have had large affect of aging time comparing with 0hr aging specimen and increased by 20%, 40%, and 60% separately for 2hr, 10hr, and 100hr aging specimen. The empirical formulas of creep rupture time "t" as follows. (aging time are in parenthesis) t?=2.297×10? t?=8.810×10? t?=2.951×10? t?=1.178×10? 3) Creep constant "n" has increased, "k" decreased and creep limit increased by increasing the aging time. Then creep strain rate has decreased and increased by increasing the aging time and stress. The empirical formulas as follows. ε?=3.326×10? ε?=1.905×10? ε?=1.347×10? ε?=3.465×10? 4) The creep strain rate multiplied by creep rupture time has constant value according to property of material and belongs to the range of parallel line at logarithmic graph paper. 5) Hardness has increased by the increasing of aging time and intergranular hardness is higher than transgranular hardness. 6) The micro cracks occur from wedge crack and cavitation crack at grain boundary and exist at the surface of specimen and the surface of longitudnal section. 7) High stress and aging specimens have mostly wedge crack. Low stress and nonaging specimens have mostly cavitation crack. 8) Rupture surface of higher stress has shearing fracture of about 45° inclination, and has tendency of fracture by directing perpendicular to the axis for decreasing creep stress and also has same phenomenon for occurrence and propagation of crack.

Others : Studies on the Physiological characteristics of (Cervus e. canadensis) Velvet Antler in Elk

( Byong Tae Jeon ),( David G Thomas ),( Sun Hee Cheong ),( Myeong Hwa Kim ),( Sung Jin Kim ),( Si Heung Sung ),( Pyo Jam Park ),( Jae Hyun Park ),( Sang Ho Moon ) 한국동물자원과학회 ( 구 한국축산학회 ) 2010 한국축산학회지 Vol.52 No.3

Analysis of Aroma Compound Profiles in Doenjang (Soy Paste) Made from Twelve Different Soybeans.

Byong Won Lee,Tae Joung Ha,Kiwoung Yang,Jong Min Ko,Hyun Tae Kim,Young Hun Lee,Myeong Gi Jeon,Myeong Gi Jeon,Ha Sik Sim,Sang-Ouk Shin,Chan-Sik Jung,In Youl Baek,Keum Yong Park 한국작물학회 2010 한국작물학회 학술발표대회 논문집 Vol.2010 No.04

Fermented soybean food is one of most economical and health food due to its valuable nutritional and medicinal attributes and have been consumed for centuries as flavoring ingredient in Korea. On fermented soybean food such as doenjang, aroma compounds are important property because they determine taste and grade of fermentation. This study investigated variety of aroma compounds of doenjang made from different soybean genotypes. Aroma compounds in twelve different doenjang made from two cultivar (Daewon and Taekwang) and ten elite lines were extracted by steam distillation extraction (SDE) method and analyzed by gas chromatography/mass spectrometry (GC/MS). Aroma compound were detected over 80 kinds in eight samples (Daewon, Taekwang, MY177, MY187, MY189, MY192, MY204 and MY205) and under 70 kinds in four samples (yeonchun1, MY188, MY203 and MY206). Among the detected aroma components, 47 compounds were assigned as aromatic compounds (21), long chain fatty acid (13), short chain fatty acid (5) and others (8) by the computer library (Wiley 7n program). The major aroma compounds in twelve different doenjang were benzaldehyde, benzeneacetaldehyde, 2-methoxy-4-vinylphenol, pyrazine type compounds, cysteaminesulfonic acid, palmitic acid, oleic acid and linoleic acid. Each doenjang made by same condition (microbe, temperature, aging time and etc) had a difference in ratio and variety of aroma compounds due to different components having soybean genotype.

Evaluation of Physically Effective Fiber for Distributing Total Mixed Rations in Korea

Jeon, Byong Tae,Kim, Kyoung Hoon,Kim, Myeong Hwa,Oh, Mi Rae,Li, Hongliang,Moon, Sang Ho The Korean Society of Grassland and Forage Science 2013 한국초지조사료학회지 Vol.33 No.3

This study was carried out to evaluate the physical characteristics of total mixed rations (TMR) prepared in Korea for improving productive effectiveness of dairy and beef cattle. The 40 samples of commercial TMR for dairy and beef cattle in 6 municipals were collected and analyzed for chemical composition and physical properties. There were significant regional differences (p<0.05) in dry matter and crude protein contents of TMR for dairy and beef cattle. In roughage value index (RVI), neutral detergent fiber (NDF) content, and physically effective NDF (peNDF)$_{1.18}$ content, there were no regional differences in TMR for dairy cattle, but there were significant regional differences (p<0.05) in TMR for beef cattle. Thus the results from this study support that because RVI, NDF content, and peNDF content in TMR for dairy and beef cattle exceeded recommended ranges, a little adjustment in TMR for dairy cattle will be necessary to obtain optimal productivity.

Effect of Antler Development Stage on the Chemical Composition of Velvet Antler in Elk (Cervus elaphus canadensis)

Jeon, Byong-Tae,Cheong, Sun-Hee,Kim, Dong-Hyun,Park, Jae-Hyun,Park, Pyo-Jam,Sung, Si-Heung,Thomas, David G.,Kim, Kyoung-Hoon,Moon, Sang-Ho Asian Australasian Association of Animal Productio 2011 Animal Bioscience Vol.24 No.9

This study was conducted to provide the basic information to allow improved scientific assessment of velvet antler's quality by investigating the change of chemical composition during different antler growth stages in elk (Cervus elaphus canadensis). Twenty four antlers were harvested from elk stags (aged 4-5 years) on 65 days (VA65), 80 days (VA80) and 95 days (VA95) after button casting, and the chemical composition of each antler was determined in five sections (top, upper, middle, base, and bottom). Crude protein and ether extract content was the highest in the top section, whereas ash content was the highest in the bottom section in all groups (p<0.05). Glycosaminoglycan (GAG) content was higher in the VA65 group than in the VA95 group in the upper section of antler (p<0.05). The collagen content was higher in the VA65 group compared to the VA95 group in the middle and bottom sections (p<0.05), and increased downward from the top to the bottom section. The proportions of certain amino acids, including aspartic acid, glutamic acid and isoleucine were higher (p<0.05), whereas proline and glycine were lower in the top section of antler compared to all other sections (p<0.05). The proportion of linoleic acid, 11,14,17-eicosatrienoic acid, total ${\omega}$-3 and ${\omega}$-6 fatty acids and polyunsaturated fatty acids (PUFAs) for all sections in the VA65 group was higher than in the VA95 group (p<0.05). These results suggested that the quality of velvet antler is strongly influenced by antler development stage.

Effects of growth stage and position within the beam in the structure and chemical composition of sika deer (Cervus nippon) antlers

Jeon, Byong Tae,Kim, Kyoung Hoon,Cheong, Sun Hee,Kang, Sung Ki,Park, Pyo Jam,Kim, Dong Hyun,Jung, Ho Sung,Park, Jae Hyun,Thomas, David G.,Moon, Sang Ho CSIRO Publishing 2012 Animal production science Vol.52 No.1

<P> The purpose of the present study was to investigate the changes in structural and chemical properties of sika deer antler at different stages of its growth in order to improve scientific assessment of antler’s quality. Eighteen antler samples, harvested on 40, 50 and 60 days after casting were collected from randomly selected deer farms, and the structural properties of antlers were examined. The chemical composition of each antler was determined in the upper, middle and basal section. Our results showed that the crude protein, crude fat (ether extract), uronic acid and sialic acid increased markedly from the base to the upper section, but the ash was higher in the basal section. Collagen content increased significantly from the upper to the basal section in all groups. The structural factors, including length and girth were positively or negatively correlated with the chemical composition such as glycosaminoglycans, ether extract-fat, ash, uronic acid, sialic acid, total sugar and collagen content. These findings may provide useful basic information and identify biomarkers for the association between structural properties and chemical composition during antler growth period, which should facilitate efficient production of high quality antlers for food consumption and as pharmaceutical agents. </P>

제주지역에서 사육중인 경주 육성마의 여름철 방목행동에 관한 연구

전병태(Byong Tae Jeon),김명화(Myeong Hwa Kim),박재현(Jae Hyun Park),김성진(Sung Jin Kim),성시흥(Si Heung Sung),이상무(Sang Moo Lee),문상호(Sang Ho Moon) 韓國草地學會 2009 한국초지조사료학회지 Vol.29 No.4

본 연구는 2007년 6월 23일부터 6월 29일까지 제주도에 위치한 말 목장의 방목지에서 말의 연령에 따른 군별 행동양식을 알아보고자 실시하였다. 공시마는 육성마군 3세 11두, 육성마군 1세 12두를 대상으로 행동을 조사하였다. 연령에 따른 행동의 차이가 약간 나타나 육성마(1세) 군에서는 채식이 56%, 기립 23%, 횡와 10%, 보행 5%, 러닝 2.5%, 음수가 3%였다. 육성마 1세의 3두의 개체별 행동발현은 개체차이가 나타났으며 비율의 평균은 채식이 53%, 기립이 29%, 횡와 11%, 보행 5%, 음수 1%, 러닝 1%를 나타내었다. 육성마(3세) 군에서는 채식 54%, 기립 27%, 보행 13%, 러닝과 음수가 1.5%, 횡와가 1% 였다. 육성마 3세의 개체별발현 비율 평균은 채식이 53%, 기립 32%, 보행 10%, running과 음수행동이 각각 1%였다. 본 연구는 우리나라에서 생산되는 경주마의 방목행동에 관한 최초의 연구라고 생각된다. 이 자료가 충분할 수는 없으나 이를 기반으로 경주마를 생산, 육성할 때 사양관리에 도움이 되고 앞으로 연구의 기초자료가 될 수 있을 것이라 사료된다. This study was carried out in thoroughbred colts grazed in pasture at summer season of Jeju island, Korea, from June 23 to 29 in 2007. We investigated the behavioral pattern of the thoroughbred colts (n=23) at the age of 3-year-old (n=11) and 1-year-old (n=12). The group behavioral pattern of thoroughbred colts was different according to the age. It was shown that eating 56%, standing 23%, lying 10%, walking 5%, running 2.5% and drinking 3% in the 1-year-old thoroughbred colts group. Especially, it was significantly individual difference (P<0.05) in the average behavioral expression ratio of 1-year-old thoroughbred colts (n=3), which was eating 53%, standing 29%, lying 11%, walking 5%, drinking 1% and running 1%. On the other hand, it was investigated that eating 54%, standing 27%, walking 13%, running and drinking 1.5%, lying 1% in the 3-year-old thoroughbred colts group. Also, the individual behavioral expression ratio of the 3-year-old thoroughbred colts was eating 53%, standing 32%, walking 10%, running and drinking 1%, which was a similar pattern to the result of 1-year-old colts. It is considered that this is the first study regarding a pasturage action of a racehorse produced in Korea. These data cannot be enough, but this data will be based on the production of racehorses and fostered in the management.

다중영역 스위칭형 퍼지제어기

전병태(Byong-Tae Jeon),손재현(Jae-Hyun Son),조종훈(Jong-Hoon Cho),김낙교(Lark-Kyo Kim),남문현(Moon-Hyon Nam) 제어로봇시스템학회 1994 제어로봇시스템학회 국내학술대회 논문집 Vol.1 No.1

심박수로부터 1 일 Energy 소비량을 추정하기 위한 조사법의 간역화

전병태(Byong Tae Jeon) 건국대학교 동화와번역연구소(구 건국대학교 중원인문연구소) 1988 동화와 번역 Vol.7 No.-