• Title/Summary/Keyword: cultivated years

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A Study on the Effects of Engineering Education Accreditation (공학교육인증제도 효과 분석 연구)

  • Kang, So Yeon;Hon, Sung Jo;Choi, Keum Jin;Park, Sun Hee;Cho, Sung Hee
    • Journal of Engineering Education Research
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    • v.18 no.3
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    • pp.59-68
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    • 2015
  • This study was implemented for the purpose of analyzing the effects of Engineering Education Accreditation. Now, 15 years has passed adopting the engineering education system. We need to analyze the effect that this system has changed on the ground of engineering education, and it cultivated the human resource. In order to achieve the purpose of this study, the survey were done on the professors, graduates, and workers. The results and conclusions of this study are summarized as follows: First, it is urgent need to change the system of accreditation, and to get the public trust on assessment. Second, it is necessary to make circumstance that engineering education accreditation is advertised to the industries, and the industry can join the development, consulting, evaluation of curriculum. Third, government needs to make the policy that gives the incentive to the industries, if they give some merits to the accreditation graduates. Fourth, certificate of program graduate is desired to spread the accreditation proliferation. Fifth, government should systemize that accreditation program can get advantage to be selected for the public finance business(e.g. BK, LINC).. It will impact the quality Improvement and accountability of engineering programs.

Studies on the Cultivation Trial of Coptis japonica $M_{AKINO}$ in Korea and Its Berberine Contents (일황연(日黃連)의 시험재배(試驗栽培)와 Berberine 함량(含量)에 관(關)한 연구(硏究))

  • Yoon, Won-Yong;Lee, Yong-Joo;Park, Chae-Joo
    • Korean Journal of Pharmacognosy
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    • v.9 no.4
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    • pp.177-180
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    • 1978
  • In oriental medicine, Coptis japonica $M_{AKINO}$ (Ranunculaceae) has been known as bitter stomachics. This plant originally grows wild and has been cultivated in Japan but not in Korea. However, a few years ago, some workers have been trying to cultivate this plant in Korea and have made much progress. Therefore, this . study was made for the purpose of conforming possibility in cultivation of Coptis japonica $M_{AKINO}$ in Korea. The results were as follows: 1) Berberine contents of rhizomes are much more than of K.P.. Difference in contents between Eu Jeon Bu $(4.88{\pm}0.77%)$ and Bo Seong area $(3.62{\pm}0.50%)$ is significant (p<0.05). 2) Berberine contents of fibrous roots of Eu jeong Bu $(0.97{\pm}0.28%)$ area was similar to that of Gang Nam $(0.93{\pm}0.21%)$, Yang Pyung area $(0.91{\pm}0.14%)$ but only contents of Bo Seong area $(0.74{\pm}0.25%)$ is less than that of other area and it's difference is not significant. 3) It was considered that the cultivation of Coptis japonica $M_{AKINO}$ in Korea is possible considering the cultivation results and berberine contents, and also more moderate than south region.

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Survey of Garlic Virus Disease and phylogenetic Characterization of Garlic Viruses of the Genus Allexivirus Isolated in Korea

  • Koo, Bong-Jin;Kang, Sang-Cu;Chang, Moo-Ung
    • The Plant Pathology Journal
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    • v.18 no.5
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    • pp.237-243
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    • 2002
  • A survey of virus infection in garlic plants cultivated in Korea was conducted for three years. Most virus-infected garlic plants (Allium sativum) showed typical symptoms on the leaves such as yellow mosaic, stripes, and distortion. Through immunosorbent electron micro-scopy and RT-PCR analysis, the complex mixtures of viruses including garlic viruses of the genus Allerivirus, gaylic strain of Leek yellow stripe virus of the genus Potyvirus, and Garlic latent virus of the genus Carlavirus were identified in the virus-infected garlic plants. Among these viruses, Allexivirus was the most frequently detect-ed in the regions surveyed. Using sets of differential primers for Allexivirus genomes, two members of the genus were amplified and sequenced from the purified viruses. The deduced amino acid sequences for the coat proteins and the nucleic acid binding proteins of two viruses showed high homologies to Garlic virus A (CarV-A) and Garlic virus D (GarV-D) of Allekivirus. This is the first report of GarV-A and GarV-D in Korea. This suggests that Allexivirus in gavlic plants in Korea was mixed and varied. Phylogenetic analyses showed that the genus Allexivirus was diversi(ied by the processes of accumulation and evolution of viruses in garlic plants due to the long period of repeated vegetative propagation.

Developing Issues and Marketing Situations of Organic Agricultural Products (유기농산물의 유통실태 분석과 발전방안)

  • Kim, Ho
    • Korean Journal of Organic Agriculture
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    • v.18 no.4
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    • pp.489-509
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    • 2010
  • The object of this study is to analyze marketing situations and to suggest developing issues for organic farming. Organic agricultural products (OAP) has been steadily grown by an annual 36.4 percent over the past ten years, and production of OAP took up 4.5 percent of the Environmentally friendly agricultural products (EFAP) in 2009. 9,403 farmers, cultivated area 13,343ha and production 108,810 M/T in Organic agriculture are respectively formed 0.8 percent, 0.8 percent and 0.6 percent of Korea agriculture in 2009. And production of livestock products to have been certificated from the year 2005 was over 10,000M/T in 2008. OAP is mainly distributed by direct marketing system. The market size of OAP is 188.5 billion in 2008 and has been grown by an annual 30.1 percent. The price difference between OAP and general agricultural products is about 65.8 percent. Several issues on the marketing system of OAP are as follows : overcost of OAP marketing socially, imbalance of supply and demand, absence of standard price, institutional insufficiency to marketing within wholesale market, retail price inflexibility of consumer's cooperative, and so on.

Investigations on Inundation Damage in Greenhouse Complex Established at Lowlands on the Geumgang Riverside (금강변 저지대 시설원예단지의 침수피해 실태와 개선방안 조사연구)

  • Nam, Sang-Woon;Kim, Tae-Cheol;Kim, Dae-Sik
    • Journal of The Korean Society of Agricultural Engineers
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    • v.52 no.3
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    • pp.47-55
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    • 2010
  • Investigations on the inundation damage and improvement measures were carried out centering around the protected horticultural complex concentrated in lowlands on the side of Geum river, in Nonsan and Buyeo, Chungnam. Most greenhouses were single-span plastic houses in this area, and tomato, strawberry and watermelon were cultivated mainly. 45.8 % of whole farmhouse were experienced in damage by inundation, and a frequency of the damage was average once in 11 years. The most urgent problem at the greenhouse culture in this area was showed in order of drainage improvement, irrigation water resources and energy saving. Consideration items in drainage improvement project for protected horticulture were showed in order of extending drain pumps, extending drain canals, using concrete flume in drain ditch. It needs to consider systematic plans that can restrain new establishment of greenhouses on the lowland paddy field in drainage area. It is difficult to remove greenhouses which are already established or prohibit cultivation. Therefore we should impose minimum duty items so that greenhouse tillers can cope with inundation. And it is thought that managing agency need to minimize farmers damage by improving drainage ability and introducing maintenance pattern that is different from rice cropping.

Life Cycle Assessment (LCA) for Claculation of the Greenhouse Gas Emission Amount of Facility House -With Cucumber, Tomato, Paprika- (전과정평가를 통한 시설작물의 온실가스배출량 산정연구 -오이, 토마토, 파프리카를 중심으로-)

  • Kim, Tae-Hoon;Yoon, Sung-Yee
    • Korean Journal of Organic Agriculture
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    • v.21 no.2
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    • pp.189-205
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    • 2013
  • Climate change is rapidly getting worse. In Korea, the average temperature has increased by $1.5^{\circ}C$ over the last 100 years. In terms of global warming, it causes regional climate change, extreme weather phenomena and change of cultivated area. moreover, Global Warming brings both direct and indirect damage to agricultural cultivation. Global warming was accelerated by the greenhouse gas emissions which is by industry. In addition, Greenhouse gas emissions are increasing. In agriculture Thus we need to figure out how to analyze and to reduce greenhouse gas emissions and its cause. This study assumes that it is the introduction of the bio-energy using compost to facility house and it analyzes that there is the difference between in the future in utilizing compost due to the introduction of bio-energy facility houses; Environmental effect and Environmental effect which are generally used. This research is a previous step for resource-circulating, farming, utilizing a variety of by-products of the agricultural sector as an environmental assessment studies for the future completion of resource-circulating agriculture.

The Soil Improvement and Plant Growth on the Newly-Reclaimed Sloped land VI. Relationship between annual change of soil phsico-chemical properties and yield of silage corn (신개간경사지 토양개량과 작물생육에 관한 연구 VI. 토양의 물리화학성 년차간 변화가 옥수수 청예수량에 미치는 영향)

  • 허봉구;김무성
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.11 no.1
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    • pp.22-29
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    • 1991
  • This study was experimented to obtain the basic information on the changeable aspect and improvement of soil fertility in newly-reclaimed sloped land. Silage corn was cultivated under the six different treatments for 4 years. The relation between the amount or ratio of annual changes of soil physico-chemical properties and yield of silage corn were analyzed. Soil bulk density was decreased in 3rd year at topsoil, but that decreased in 4th year at subsoil. Soil organic matter also decreased in 2nd year at topsoil, and decreased continuously at subsoil. Bulk density and hardness of soil depths showed significant negative simple correlation with dry matter yield and cation exchange capacity showed positive. Correlation coefficient of chemical properties with dry matter yield were low. The range of annual changes of moisture percent, hardness and organic matter were wider than the other properties. The significantly different of physical properties were higher than the chemical properties, and those of topsoil were higher than subsoil. According to multiple regression between yield and physico-chemical properties of subsoil, bulk density and cation exchange capacity were in the greatest contribution at the variations, but bulk density was greatest at the ratios.

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Strain measurement of optical fiber embedded in the reinfoned retaining wall used in the railway (광섬유가 삽입된 철도용 보강토 옹벽의 초기 변형을 측정)

  • Yoon, Hyuk-Jin;Song, Kwang-Yong;Kim, Dae-Sang;Kim, Ki-Hwan;Kim, Jung-Seok;Kwon, Tae-Soo;Na, Hee-Seung
    • Proceedings of the KSR Conference
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    • 2009.05a
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    • pp.1509-1513
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    • 2009
  • The research of applying reinforced retaining wall due to support the land pressure that given from train's load has been accomplished actively in domestic area. After the retaining wall has been installed, the collapse or partial destruction that generated by effect of train's vibration and repetitive load of train may be induced. Accordingly in the period of using this, the sufficient durability should be guaranteed and years of durability are one hundred and as these are longer than road structure's, the technique that introduced to wall and monitor the long-term strain is necessary. In this paper, the optical fibre is induced vertically to the reinforced retaining wall and after the subsistence of optical fibre is confirmed, the early strain that applied to optical fibre after insertion is monitored. Before and after the concrete placing, damage feasibility of optical fibre is measured by using OTDR(Optical Time Domain Reflectometer) and after concrete is cultivated, the early strain induced to optical fibre is measured by application of BOCDA (Brillouin Correlation Domain Analysis) system.

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Effectiveness and safety of seasonal influenza vaccination in children with underlying respiratory diseases and allergy

  • Kang, Jin-Han
    • Clinical and Experimental Pediatrics
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    • v.57 no.4
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    • pp.164-170
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    • 2014
  • Influenza causes acute respiratory infections and various complications. Children in the high-risk group have higher complication and hospitalization rates than high-risk elderly individuals. Influenza prevention in children is important, as they can be a source infection spread in their communities. Influenza vaccination is strongly recommended for high-risk children with chronic underlying circulatory and respiratory disease, immature infants, and children receiving long-term immunosuppressant treatment or aspirin. However, vaccination rates in these children are low because of concerns regarding the exacerbation of underlying diseases and vaccine efficacy. To address these concerns, many clinical studies on children with underlying respiratory diseases have been conducted since the 1970s. Most of these reported no differences in immunogenicity or adverse reactions between healthy children and those with underlying respiratory diseases and no adverse effects of the influenza vaccine on the disease course. Further to these studies, the inactivated split-virus influenza vaccine is recommended for children with underlying respiratory disease, in many countries. However, the live-attenuated influenza vaccine (LAIV) is not recommended for children younger than 5 years with asthma or recurrent wheezing. Influenza vaccination is contraindicated in patients with severe allergies to egg, chicken, or feathers, because egg-cultivated influenza vaccines may contain ovalbumin. There has been no recent report of serious adverse events after influenza vaccination in children with egg allergy. However, many experts recommend the trivalent influenza vaccine for patients with severe egg allergy, with close observation for 30 minutes after vaccination. LAIV is still not recommended for patients with asthma or egg allergy.

Studies on the Residues of Chlorinated Organic Insecticides -3. Heptachlor residues in soil 15 years after yearly treatment of the soil insecticide in a tobacco field- (유기염소계 살충제의 잔류분에 관한 연구 -3. 담배연작토양의 Heptachlor 잔류분에 관하여-)

  • Park, Chang-Kyu
    • Applied Biological Chemistry
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    • v.18 no.2
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    • pp.61-64
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    • 1975
  • Soil residues in a tobacco field yearly treated with a soil insecticide, Heptachlor, was analyzed by GLC equipped with electron capture detector(ECD). In addition, translocation of the heptachlor residues into two staple vegetables, radish and chinese cabbage was also studied under field conditions. The results were summarized as follows; 1. The Heptachlor residues in the soil of tobacco plots were less than 0.010 ppm. 2. The Heptachlor residues in radish and chinese cabbages cultivated in the tobacco plot were also below 0.010 ppm. 3. Amount of Heptachlor residues translocated into the vegetables were not related to the concentrations of the residues in the soil.

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