• Korean Journal of Agricultural Science
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• v.20 no.2
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• pp.103-108
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• 1993

This experiment was conducted to study the effects of pre-cultivation of chines milk vetch (Astragulas sinicus L.) on rice (Oryza sativa L, cv. Daecheongbye) growth and development. This experiment treatments were conducted by eight ; control 1 (stardard fertilizer ; N:P:K=0.3:0.2:0.2g/pot), control 2 (none fertilizer), root of C.M.V (chines milk vetch), shoot of C.M.V, whole plant of C.M.V, and root, shoot and whole plant of C.M.V+fertilizing N. Plant hight of rice was more than that control 1 in maximum tillering stage, heading stage and ripening stage. Tillering numbers per hill were the most in whole plant of C.M.V+fertilizing as whole growth and development period. And panicle per hill, spikelet per paincle, filled grain ratio and 1,000 grain weight were more in fertilized C.M.V than those control 1.

• The Magazine of the IEIE
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• v.31 no.7
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• pp.66-76
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• 2004

정보통신환경에서 사용되는 정보통신기기간의 상호접속은 표준 규격을 적합하게 구현했는가에 따라 좌우된다. 국내에서도 최근 정보통신 기기간의 상호운용성의 중요도가 한층 커지고 있다. 최근에는 상호 호환성이 있는 정보의 소통을 위해 정보기술(information technology) 및 전기통신(telecommunication) 분야의 표준화 요구가 실질적으로 대두되기 시작하여 이에 대한 연구가 ISO(International Organization for Standardization)와 CCITT(International Telegraph and Telephone Consultative Committee)를 중심으로 활발하게 추진되고 있다. 블루투스도 이들 국제표준기구에서 제정 권고된 표준을 기반으로 블루투스 제품들을 상호 접속하여 호환성 있게 운용하기 위하여 블루투스 SIG(Special Interest Group)에서 블루투스 제품에 대한 적합성시험을 실시하고 있다. (중략)

• 프린팅코리아
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• v.12 no.2
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• pp.102-107
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• 2013

한국인쇄학회는 지난해 11월 2일 추계학술논문을 발표했다. 추계학술논문에는 Reverse Offset에서 잉크전이 유동에 관한 시뮬레이션 연구, 그라비어 오프셋 인쇄에 의한 미세전극용 Ag Paste 개발, 국내 하프톤 스크린 인쇄를 위한 최적의 스크린 망사 선택 방법에 관한 연구, 친환경과 표준인쇄를 고려한 인쇄 최적화에 관한 연구 등이 발표됐다. 본지에서는 김준곤, 구철회, 조가람(부경대학교 공과대학 인쇄정보공학과)의 '친환경과 표준인쇄를 고려한 인쇄 최적화에 관한 연구'를 게재한다.

• 프린팅코리아
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• v.11 no.12
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• pp.116-119
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• 2012

2012년 한국인쇄학회 추계학술논문발표회가 지난 11월 2일 동국대학교 문화관 덕암세미나실에서 열렸다. 올해 창립 30주년을 맞은 한국인쇄학회는 이번 추계학술논문발표회에서 Reverse Offset에서 잉크전이 유동에 관한 시뮬레이션 연구, 그라비어 오프셋 인쇄에 의한 미세전극용 Ag Paste 개발, 국내 하프톤 스크린 인쇄를 위한 최적의 스크린 망사 선택 방법에 관한 연구, 친환경과 표준인쇄를 고려한 인쇄 최적화에 관한 연구 등을 발표했다. 본지에서는 김준곤, 구철회, 조가람(부경대학교 공과대학 인쇄정보공학과)의 '친환경과 표준인쇄를 고려한 인쇄 최적화에 관한 연구'를 게재한다.

• Korean Journal of Soil Science and Fertilizer
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• v.7 no.1
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• pp.29-34
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• 1974

On a newly reclamed acidic Song-jong soil (soil of a member of fine loamy, mesic family of Hapludults) an experiment was carried out to find out the proper measure of the improvement of soil fertility with soybean as test crop. Results are summarized as follow: 1. Application of compost (1 ton/10a), lime (lime requirement)and fused phosphate (equivalent to 5% of the phosphate fixation coefficient)resulted in the increase of soybean yield by 93.3% over the check plot (N: 6kg/10a, $P_2O_5$: 9kg/10a, $K_2O$: 6kg/10a). The application of fused phosphate at the level of 5% of phosphate fixation coefficient N (6kg/10a) and K(6kg/10a) brought the yield increase by 62.7% over the check plot. However, although the pH of the soil was adjusted to 7.0 by liming, the application of lime with moderate dose of phosphate ($P_2O_5$: 9kg/10a) did not increase the yield of soybean significantly. And the application of fused phosphate at the level of 5% of phosphate fixation coefficient increased the available soil P from 14 ppm to around 100 ppm as tested after harvest. 2. Application of compost (1 ton/10a) increased the organic matter content of soil by 0.8% when tested after harvest. While, the application of rice straw (0.5 ton/10a) did not alter the soil organic matter content. The CEC of the soil tested after havest found incereased significantly by the addition of lime and compost. 3. Plant analysis revealed that the $K_2O/Ca+Mg$ is better correlated with the yield than the absolute concentration of $K_2O$ in plant tissue. Between the concentration of $P_2O_5$ in plant tissue and the yield of soybean, a typical C-curve relationship was observed, indicating that in this particular soil, phosphate was the primary growth liming factor.

• Journal of Sericultural and Entomological Science
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• v.13 no.1
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• pp.31-34
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• 1971

The pupa (7th. day after mounting) were irradiated for foully minutes with 1,000${\gamma}$-ray and the copulation was done under the various conditions when the pupa grew to be imagos. The silkworm eggs that the imagos laid were divided into many groups by five, fifteen, foully-five, ninety, seven-hundred, twenty and twenty-four hundred minutes eggs respectively and the lipid phosphorus in the each group of eggs was analyzed as follows. 1. The quantity of 928${\gamma}$/100mg dry powder (D. P.) was shown in the group of the fourt-five minutes eggs whose ovum nucleus and sperm nucleus were not conjugate in the control C (male and female). The number of the greatest quantity of 944${\gamma}$/100mg D.P. after the syngamy of ovum nucleus and sperm nucleus while the smallest quantity was 768${\gamma}$/100mg D.P. in the group of ninety minutes eggs. 2. Not much difference could be seen the copulation group of female irradiation and male control and the copulation group of male irradiation and female control compared to the both male and female control group, but the influence could be seen in the group of irradiated female pupas. 3. The great difference could be seen in the group of irradiated male and female pupa compared to the control group. The five minutes eggs showed the smallest quantity of 536${\gamma}$/100mg D.P. and the quantity of lipid phosphorus rapidly began to increase from the fifteen minutes eggs. The quantity amounted to 1,082${\gamma}$/100 mg D.P. in the case of seven hundred and twenty minutes eggs while the quantity decreased in the twenty-four hundred minutes eggs which showed 912${\gamma}$/100 mg D.P. The general result obtained in the present study was that the irradiated male and female pupa were greatly influenced before and after the syngamy of gamete.

• Korean Journal of Food Science and Technology
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• v.9 no.1
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• pp.13-18
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• 1977

In order to improve the storage ability of Spur Red Delicious apple, calcium ingredients were applied to the apple tree during the growing period, and then the effects of calcium on appearances and respiratory activity of harvest apples were investigated during the storage period. The results of this work were summarized as follows: 1. The freshness of apples treated by calcium compounds reached $73{\sim}78%$, but that of control group was 68% by March of next year. 2. The respiratory rate of the apples that had been applied the high concentration of ammonium sulfate in field during the growing period, was accelerated rather than control group, and that of calcium treatment groups was continuously inhibited during the storage period. 3. The direct foliar application of calcium compounds in the field was more effective than dipping apples in calcium chloride solution for better quality and improving storage ability after harvest. 4. The freshness and hardness relatively not much decreased in calcium treatment groups even after 5 month storage.

• Magazine of the Korean Society of Agricultural Engineers
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• v.23 no.2
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• pp.54-60
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• 1981

토양유실은 강우의 성질, 토양의 특성, 경사도 및 경사장, 배수방법에 따라 달라진다. 따라서 토양유실을 정확하게 예측하기 위해서는 위의 6개 인자에 관한 구명이 필요하다. 지금까지 우리 나라에서는 Wischmeier의 토양유실량 공식(USLE)을 효율적으로 적용하기 위하여 6개 인자중 강우인자, 토양침식관성 인자, 작물인자 및 토양보존인자에 대해서만 연구가 있는 실정이다. 따라서 본 연구에서는 경사지에서의 경사장가 경사도가 토양유실에 미치는 영향을 구명하여 LS방정식을 유도하고자 하였다. 경기도 나주군 숙거리에 있는 농업진흥공사 농지 보존 시험소에서 10개의 과지 시험구에 대한 토양유실량을 측정하여 분석하였다. 10개의 시험구중 9개는 경사도 10%, 20% 및 30% 각각에 대해 10m, 20m 및 30m의 경사장으로 되어있으며 나머지 1개의 시험구는 다른 시험구와의 비교를 위한 표준구로서 15%의 경사도, 20m의 경사장으로 되어 있다. 토양은 예산류에 속하며 60%의 초질, 24%의 미초질 및 16%의 정토질로 구성되어 있다. 20회의 토양유실량 측정 기록중 12.7mm 이상의 강우에 의한 9회분의 유실량 측정자료를 회귀분석한 결과 다음과 같은 방정식이 유도되었다. 그러나 경사도와 경사장인자(LS)는 다른 여러 인자들과의 상호작용(interaction)을 내포하고 있기 때문에 앞으로의 LS 인자에 대한 연구는 여러 종류의 토양에서 경사의 조건을 다양하게 변화시켜 장기간 실험을 한다면 한국의 토양특성에 일반적으로 적용할 수 있는 LS방정식을 유도할 수 있으리라 사료된다.

• Current Research on Agriculture and Life Sciences
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• v.6
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• pp.87-91
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• 1988

We studied the effects of the seed root weight and the local varieties on the yield and the quality of Cnidium officinale Makino root. The fresh and dried root weight per plant was found to be 92.7 g and 18.5 g in the large seed root(20-25 g), while 94.5 g and 17.0 g in the small seed root(15-20 g), respectively. The fresh and dried roots were produced 906.8kg/10a and 190.2kg/10a in the large seed root, but 721.2kg/10a and 165.2kg/10a in the small seed root, respectively. The root weight per plant, root yield per 10a and diethyl ether extract contents in root of Ul-Reung cultivar were higher than those of the other varieties. The root weight per plant and root yield per 10a were positively correlated with the contents of diethyl ether extracts in the large seed root, and with the ash contents of root in the small seed root. It is recommended for the high quality root production of cnidium officinale Makino to select and cultivate the large seed root(20-25 g) of Ul-Reung cultivar.

• Construction Engineering and Management
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• v.11 no.4
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• pp.45-50
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• 2010