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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Agricultural Science
Journal Basic Information
Journal DOI :
CNU Journal of Agricultural Science
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Volume & Issues
Volume 40, Issue 4 - Dec 2013
Volume 40, Issue 3 - Sep 2013
Volume 40, Issue 2 - Jun 2013
Volume 40, Issue 1 - Mar 2013
Selecting the target year
A study on performance capability of local government on the forest tending project
Kim, Myoung-Kwan ; Oh, Do-Kyo ; Kim, Se-Bin ;
Korean Journal of Agricultural Science, volume 40, issue 1, 2013, Pages 1~11
DOI : 10.7744/cnujas.2013.40.1.001
The study proposes to draw out the correlation on what kinds of influences local government personnel's performance capability affect the overall quality of the project, and to suggest institutional supplement policies. For the study, two analytical methods are conducted. First, a hypothesis per each factor was set by classifying the factors which affect the personnel's performance capability into organizational and individual factors. Second, a survey was conducted targeting the project management personnels and presented the result on the verification of the hypothesis through statistic techniques. As the result, it is considered that the quality of forest tending project is more affected by the individual factors than the organizational factor, thereby this study suggests the methods of reinforcement in project management personnel's performance capability.
Effect electric pulse application on the fruit body production of Tricholoma matsutake-In situ condition
Islam, Ferzana ; Islam, Afsana ; Ohga, Shoji ;
Korean Journal of Agricultural Science, volume 40, issue 1, 2013, Pages 13~18
DOI : 10.7744/cnujas.2013.40.1.013
Effect of electric pulse stimulation was tested on the fruit body formation of valuable mushroom Tricholoma matsutake in the field of natural habitat of this mushroom. After applying the electric stimulator to the specific area of pine forest we found that the treatment especially stimulated the fructification of T. matsutake. And the most valuable findings of our study was that only our treatment plots showed fruit body formation whereas the control plots and the whole natural habitats of our study area showed zero production of this mushroom during the same time. From the point of view of mushroom production, our experiment shows that fruit body production can be upgraded by using pulsed power as an electrical stimulation in the field of the natural habitat of this mushroom. These findings from our experiment confirm the effectiveness of the significance of pulsed power technology for the improvement of T. matsutake fruit body production in the natural habit of this mushroom.
A study on the direction of Korean official development assistance in forestry
Yoon, Jun-Young ; Park, Gwan-Soo ; Kim, Se-Bin ; Lee, Jun-Woo ; Sung, Yong-Joo ; Lee, Sang-Jin ; Park, Beom-Hwan ; Jang, Gwan-Woo ;
Korean Journal of Agricultural Science, volume 40, issue 1, 2013, Pages 19~26
DOI : 10.7744/cnujas.2013.40.1.019
Official Delvelopment Assistance(ODA) in forestry sector has been implemented for about 60 years after the second world war. Forestry aid is getting important due to its role to play as a practical methodology of Millenium Development Goals(MDGs). Korea has conducted ODA in forestry in 22 developing countries since 2005. However its contents are mostly focused on environment conservation by plantation. In the other hands, the other donor countries try to eradicate poverty of people who are dependent on forestry, environment conservation and etc in MDGs by means of ODA in forestry. Swiss, Germany, Japan, UK, and the other donor counties found out without taking account of forest dependent people who are supposed to manage 22% of developing countries's forest, forestry aid could not be successful. The direction of Korean ODA in forestry need to change in order to meet the current movement of International ODA. For this, Korea should develop various contents of forestry aids like CF (Community Forestry) project which the donor countries with long history of forestry aids have implemented in many ways.
Seasonal, regional distribution and identification of psychrotrophic bacteria in milk
Shin, Yong Kook ; Lee, Hyun Ah ; Oh, Nam Su ; Nam, Myoung Soo ;
Korean Journal of Agricultural Science, volume 40, issue 1, 2013, Pages 27~34
DOI : 10.7744/cnujas.2013.40.1.027
To investigate the distribution of psychrotrophic bacteria, raw milk was collected from farms in nine different regions located around Kyunggi province in South Korea at four different seasons. Psychrotrophic counts were higher in winter than in other seasons as
CFU/mL (p<0.05). Among nine regions, the population in raw milk sampled from B region was in significantly greater numbers and those from C and D province were in significantly lower numbers than any other regions,
CFU/mL, respectively (p<0.05). In addition, among 706 bacterial isolates, the predominant class was Gamma-proteobacteria (81.02%) and genus was Pseudomonas (32.34%), especially Pseudomonas fluorescens (39.46%). Compared to the regional predominance, Acinetobacter johnsonii in A region, Pseudomonas fluorescens in B region, Enterobacter amnigenus in C region, Psychrobacter maritimus in D region, Acinetobacter johnsonii in E region, Acinetobacter haemolyticus in F region, Pseudomonas fluorescens in G region, Acinetobacter jounsonii in H region, and Pseudomonas mucidolens in I region were found.
Fatty acid composition and triacylglycerol species of the domestic and foreign chocolates collected from the market
Hyeon, Jin-Woo ; Shin, Jung-Ah ; Lee, Ki-Teak ;
Korean Journal of Agricultural Science, volume 40, issue 1, 2013, Pages 35~45
DOI : 10.7744/cnujas.2013.40.1.035
The fat content, fatty acid composition, trans fatty acid content and triacylglycerol (TAG) composition of 22 chocolates (domestics 8, foreigns 14) collected from the Korea distribution markets were investigated. The crude fat was extracted by acid hydrolysis method and analyzed by gas chromatography (GC) and reversed-phase HPLC for fatty acid and TAG compositions, respectively. The crude fat content of all chocolates varied between 30.11% and 49.59%. The major fatty acids in most of the chocolates were palmitic acid (19.36~31.15 wt%), stearic acid (5.11~36.32 wt%) and oleic acid (18.77~36.68 wt%). Whereas lauric acid (approximately 35.43 wt%) was detected in chocolate fat of sample No. 18. High oleic acid content was observed for the sn-2 position fatty acid with a range from 64.91% to 86.93%. Trans fatty acid contents in domestic chocolates (sample No. 1~8) and foreign chocolates (sample No. 9~22) were 0.03~0.59 wt% (0.01~0.19 g/100g chocolate) and 0.05~6.32 wt% (0.02~1.99 g/100g chocolate), respectively. In TAG composition, TAGs such as POP/PPO(1,3(2)-palmitoyl-2(3)-oleoyl glycerol, PN=48), POS/PSO(palmitoyl-oleoyl-stearoyl glycerol or palmitoyl-stearoyl-oleoyl glycerol, PN=50), SOS/SSO(1,3(2)-stearoyl-2(3)-oleoyl glycerol, PN=50) were mainly detected in most of the chocolates. The peaks of TAG with low PN (ex, 32-34, 36-38, and 40-42) were detected in No. 18 chocolate fat because of containing short chain fatty acid such as lauric acid.
Screening of aldose reductase inhibitory activities of Korean folk plants in Chungcheong Province
Lee, Dong Gu ; Lee, Ki Ho ; Choi, Kyung ; Ku, Jajung ; Park, Kwang-Woo ; Cho, Eun Ju ; Lee, Sanghyun ;
Korean Journal of Agricultural Science, volume 40, issue 1, 2013, Pages 47~51
DOI : 10.7744/cnujas.2013.40.1.047
To search for the aldose reductase (AR) inhibitors from Korean folk plants, the inhibition of rat lens AR in vitro using the methanol (MeOH) extracts from Korean folk plants in Chungcheong Province was investigated. Among Korean folk plants tested, the MeOH extract of Persicaria longiseta showed highest inhibition of AR (
). Consequently, P. longiseta has a possibility of new natural resources for the development of AR inhibitor for the prevention of diabetic complications.
FFT analysis of load data during field operations using a 75-kW agricultural tractor
Ryu, Myong-Jin ; Chung, Sun-Ok ; Kim, Yong-Joo ; Lee, Dae-Hyun ; Choi, Chang-Hyun ; Lee, Kyeong-Hwan ;
Korean Journal of Agricultural Science, volume 40, issue 1, 2013, Pages 53~59
DOI : 10.7744/cnujas.2013.40.1.053
Analysis of load data during field operations is highly important for optimum design of power drive lines for agricultural tractor. Objective of the paper was to analyze field load data using FFT to determine frequency and the energy levels of meaningful cyclic patterns. Rotary tillage, plowing, baling, and wrapping operations were selected as major field operations of agricultural tractor. An agricultural tractor with power measurement system was used. The tractor was equipped with strain-gauge sensors to measure torque of four driving axles and a PTO axle, speed sensors to measure rotational speed of the driving axles and an engine shaft, pressure sensors to measure pressure of hydraulic pumps, an I/O interface to acquire the sensor signals, and an embedded system to calculate power requirement. In rotary tillage, calculated frequency was decreased as travel speed increased. In baler operation, calculated frequency was increased as PTO speed was increased. The calculated peak frequency levels and expected levels were similar. Results of the study would provide information on power utilization patterns and on better design of power drive lines.
Agricultural cooperation among the North-East Asian countries
Lee, Byung-Oh ;
Korean Journal of Agricultural Science, volume 40, issue 1, 2013, Pages 61~78
DOI : 10.7744/cnujas.2013.40.1.061
The following four aspects should be examined in detail to revitalize North-East Asian agricultural cooperation specialized with Korea, Japan, and China. First, quality and safety standards of agricultural food should be unified. Secondly, it is necessary to build a food security cooperative system in North-East Asia. If three countries build the system, they can overcome a problem such as unstable supply and demand due to natural disaster, and also they can cope with food crisis. Thirdly, to establish North-East Asian Agro-valley is needed. After forming food production belt that connects Korea, Hokkaido in Japan, and the three north-eastern provinces in China, it is possible to realize high value-added agriculture with producing and processing of complementary food for partner country. Lastly, trilateral FTA negotiations should be managed carefully with operating the agricultural special zone and exclusion or prolong period of removal of tariff on sensitive items.