• Korean Journal of Medicinal Crop Science
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• v.1 no.1
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• pp.74-80
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• 1993

Survey on the status of cultivation and production of medicinal crop was studied on 18 medicinal herbs and 5 medicinal trees in 66 major crop producing complexes. Native seeds or seedlings of the crops obtained from self-seed or neighbored farmer were cultivated and organic fertilizer was preferred to chemical fertilizer in the complexes. More than 60.7% of farmers were applied compost among the organic fertilizers, while 34.8% of them cultivated without any organic fertilizers. Both of using the compound chemical fertilizers and urea and urea only used were showed 51. 5% and 40.9%, respectively. Ostericum koreanum, Angelica gigas, Phellopterus littoralis, and Bupleurum fulcatum belonging to the family Umbeliferae and Aralia continentalis, Polygonatum sibiricum and Eucommia ulmoides in the complexex were not damaged by insect pests and plant diseases. Mite, aphid, grub, cutworm, onion magot fly and european corn borer were known to as major insect pests and anthracnose, powdery mildew, brown leaf spot, leaf blight and root rot as major plant diseases. Productivity and income of a farm by medicinal crops in the complex were greatly different from seeding time, planting distance, year yielded, and selling routes even in the same cultivation method and in the same cultivated area.

• Applied Biological Chemistry
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• v.36 no.6
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• pp.502-509
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• 1993

In Ulrung floral community the growing environments and nutritive values of wild garlic was investigated. The wild garlic, grown for $3{\sim}4\;years$ in community area, were able to develope bulbs. The bulbs with 2 leaves had the highest ratio of propotion as 75.1% of share among the distribution of bulbs with completely developed leaves and 1 leaf-bulbs and 3 leaves-bulbs had 19.6% and 5.3%, respectively. Also the 2 or 3 leaves-bulbs indicated the better growth states in the part of shoot and bulbs than 1 leaf-bulbs, and there was a significant defferences in each growth between 2 leaves-and 3 leaves-bulbs. On the wild garlics we cannot find out insect injuries. However, there was deseases with symptoms of leaf-spots and lesion from May to June. At first it made a small spots on the leaves, followed by senescence at arrounding area of spots, and then it expanded to whole leaf. This pathogenic bacterium was supposed to be a member of Aristastoma. The contents of crude protein, fat, and carbohydrate in each portion of wild garlics decresed in the order of shoot, expanded leaves and bulbs. On the contrary, crude fibers increased in the same order and so it is not suitable for human consumption nutritional value. However, because the shoots of wild garlics have more than the other Allium sp., the shoots will be a good quality food stuff.

• Journal of Animal Science and Technology
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• v.44 no.5
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• pp.593-598
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• 2002

This experiment was prosecuted to estimate the carcass traits and their relationships in Hanwoo steers. The mean carcass weight(CWT), back fat thickness (BFT), meat, bone, intra- muscular fat (IMF) and eye muscle area (EMA) of steers were 300.27 kg, 9.23 mm, 58.99%, 12.92%, 28.08% and 74.00 $cm^2$, respectively. The pHB(before aging), pHA(after aging), cook loss before aging($CL_B$) and cook loss after aging ($CL_A$) were 5.32, 5.60, 16.43% and 19.21%, respectively. It was also found that the MS and FC were 3.67 and 3.17, respectively. The EMA and quantity index (QIX) were positively correlated with CWT, meat% and bone% but negatively correlated with IMF%. The BFT was positively correlated with CWT and meat% but negatively correlated with bone% and IMF%. The pH (both before and after aging) was negatively correlated with CL (both before and after aging), water loss during freezing (WLF) and FC. The muscle score(MS) was negatively correlated with CL but positively correlated with WLF and FC. The ARM, HRD, CHW and CTM increased with the increasing of fat% and sharply decreased with the increasing of meat% in the carcass.

• Journal of National Security and Military Science
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• s.7
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• pp.271-303
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• 2009

"Ubiquitous sensor network" definition is this-Someone attaches electro-magnetic tag everything which needs communication between man to man, man to material and material to material(Ubiquitous). By using attached every electro-magnetic tag, someone detects it's native information as well as environmental information such as temperature, humidity, pollution and infiltration information(Sensor). someone connects it realtime network and manage generated information(Network). 21st century's war is joint combined operation connecting with ground, sea and air smoothly in digitalized war field, and is systematic war provided realtime information from sensor to shooter. So, it needs dramatic development on watch reconnaissance, command and control, pinpoint strike etc. Ubiquitous computing and network technologies are essential in national defense to operate 21st century style war. It is possible to use many parts such as USN combined smart dust and sensor network to protect friend unit as well as to watch enemy's deep area by unmanned reconnaissance, wearable computer upgrading soldier's operational ability and combat power dramatically, RFID which can be used material management as well as on time support. Especially, unmanned watch system using USN is core part to transit network centric military service and to get national defense efficiency which overcome the dilemma of national defense person resource reducing, and upgrade guard quality level, and improve combat power by normalizing guardian's bio rhythm. According to the test result of sensor network unmanned watch system, it needs more effort and time to stabilize because of low USN technology maturity and using maturity. In the future, USN unmanned watch system project must be decided the application scope such as application area and starting point by evaluating technology maturity and using maturity. And when you decide application scope, you must consider not only short period goal as cost reduction, soldier decrease and guard power upgrade but also long period goal as advanced defense ability strength. You must build basic infra in advance such as light cable network, frequency allocation and power facility etc. First of all, it must get budget guarantee and driving force for USN unmanned watch system project related to defense policy. You must forwarded the USN project assuming posses of operation skill as procedure, system, standard, training in advance. Operational skill posses is come from step by step application strategy such as test phase, introduction phase, spread phase, stabilization phase and also repeated test application taking example project.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.16 no.1
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• pp.193-206
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• 2013

This study was to provide the base data on the status of vegetations and soils in green roofs by analyzing the soil and vegetation characteristics of 4 green roofs in Dongguk University in September 2012. Sanglokwon(SW), Dongguk Hall(DH), University Library(UL), and Information and Culture Hall P(IC) were established in 2005, 2008, 2009, and 2010, respectively. The areas of green roofs were $700m^2$, $2,300m^2$, $1,240m^2$, and $640m^2$ in SW, DH, UL, and IC respectively. The investigated floras of vascular plants were 26 families, 55 genera, 65 species in Sanglokwon(SW), 53 families, 99 genera, 112 species in Dongguk Hall(DH), 43 families, 77 genera, 84 species in University Library(UL), and 41 families, 71 genera, 75 species in Information and Culture Hall P(IC), respectively. A positive correlation is shown between the number of plant species and planting area. Total nitrogen, organic matter, and potassium in soil have positive correlation with the number of plant species. The number of plant species was proportional to area and increased more than twice after planting. About a quarter of the invaded plants (including native and naturalized species) were naturalized plants. The total soil depths including vegetation soil and drainage soil at SW, DH, UL, and IC were 20cm, 10cm, 10cm, and 8cm, respectively. The depths of vegetation soil at SW, DH, UL, and IC were <7cm, <3cm, <2cm, and <2cm respectively. The soil pH in vegetation soil ranged from 5.22 to 5.36, and from 6.13 to 6.39 in drainage soil. Available-P concentration ranged from 10.17 to 189.77mg/kg in vegetation soil and from 6.70 to 81.17mg/kg in drainage soil. Carbon concentration in vegetation soil ranged from 2.93 to 9.70%, and 2.93 to 9.70% in drainage soil. Carbon contents in 20cm, 10cm, 10cm, and 8cm soil depths were $2.62kg/m^2$, $1.89kg/m^2$, $0.50kg/m^2$, and $0.53kg/m^2$ at SW, DH, UL, and IC, respectively.

• Korean Journal of Veterinary Research
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• v.28 no.2
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• pp.227-239
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• 1988

In order to investigate the morphological characteristics of dendritic cells in the mammary gland, the appearance on the clear cells(CLs) or ATPase-positive dendritic cells(APDCs) have been observed by the light microscope. The results obtained were summarized as follows: CLs were observed in the mammary tissues of the experimental animals, such as mice, rats, guinea pigs, rabbits, cats, dogs, pigs, cows and Korean native goats, and these CLs were confirmed as the ATPase-positive cells of typical dendritic appearance(APDCs), The APDCs were distributed in between the secretory epithelial cells, between the secretory epithelial cells and the myoepithelial cells, the basal area of the secretory epithelial cells, the interalveolar and interlobular connective tissues, and in between the epithelial cells of secretory duct. The APDCs were observed more frequently during the middle period of lactation than the other periods, and were irregularly or uniformly distributed according to the location. During the middle period of lactation, there were notable quantitative differences in the APDSs depending on the mammary glands of mice, rats, guinea pigs, rabbits and cats, The most prominent differences were recognized among the mice, guinea pigs and cats. The number of AP DCs per unit area was statistically fewer in the guinea pigs($209.07{\pm}51.75cells/mm^2$) than in the mice($221.00{\pm}50.94cells/mm^2$) and cats($223.56{\pm}49.68cells/mm^2$) (respectively, p<0.05, p<0.05). Among the A/J, DBA/2, C57BL/6 and NIH(GP) mice, the mean densities of APDCs was statistically significantly fewer in the DBA/2($196.65{\pm}43.47cells/mm^2$) than in the C57BL/6($248.40{\pm}41.40cells/mm^2$) and NIH(GP) ($235.98{\pm}55.89cells/mm^2$) (respectively, p<0.0000, p<0.0000), however no significant difference between the C57BL/6 and the NIH(GP) was recognized (p>0.1). Among the F344, SD and W rats, the statistical analysis were confirmed that there were significantly fewer APDCs in the F344($198.72{\pm}47.61cells/mm^2$) than in the SD($227.70{\pm}41.40cells/mm^2$) and W($223.56{\pm}49.68cells/mm^2$) (respectively, p<0.0000, p<0.0001), however no significant difference between the SD and the W was recognized(p>0.1). The mean difference between the inbred and the noninbred counts in the mice was statistically significant (p<0.0001), and the similar result was presented in the rats(p<0.0000).

• Journal of the Korean Geographical Society
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• v.43 no.1
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• pp.87-103
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• 2008

The geographical name is an expression of human knowledge about living conditions and a basic tool for understanding about regional cultures and history as a result of spatiotemporal changes. This study aims to understand the historical and regional characteristics by analyzing the frequency and distribution of geographical names of 1:50,000 topographic map in the early 20th century and materializing on electronic cultural atlas. The result of this analysis is as follows. First, the aspect of distributed geographical names on the Korean Peninsula reflects a general trait of the country's natural and human environment included geographical features, population, arable land, the number of counties and villages, and functions of administration and military, etc. Second, through the frequency and weight of their names, the analysis shows not only the change of native names, but also the country's phase of the time by Japanese colonial policies such as exploitation of resources, the construction of railroads, and a desire to control of the border area with Manchuria. In addition, the study identified regional characteristics and differences in environmental perception and preferences, and naming basis and forms by the comparative analysis of each type of geographical names associated with village and ridge such as 'Chi' 'Ryung' 'Duk' 'Hang' 'Pyeong' 'Gok'. In particular, those characteristics were largely affected from environmental difference of each area.

• Journal of Animal Science and Technology
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• v.48 no.3
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• pp.337-344
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• 2006

The objective of this study was to compare of genetic parameter estimates on carcass traits of Hanwoo(Korean Cattle) according to modeling with Gibbs sampler and MTDFREML. The data set consisted of 1,941 cattle records with 23,058 animals in pedigree files at Hanwoo Improvement Center. The variance and covariance among carcass traits were estimated via Gibbs sampler and MTDFREML algorithms. The carcass traits considered in this study were longissimus dorsi area, backfat thickness, and marbling score. Genetic parameter estimates using Gibbs sampler and MTDFREML from single-trait analysis were similar with those from multiple-trait analysis. The estimated heritabilities using Gibbs sampler were .52～.54, .54 ～.59, and .42～.44 for carcass traits. The estimated heritabilities using MTDFREML were .41, .52～.53, and .31～.32 for carcass traits. The estimated genetic correlation using Gibbs sampler and MTDFREML of LDA between BF and MS were negatively correlated as .34～.36, .23～.37. Otherwise, genetic correlation between BF and MS was positive genetic correlation as .36～.44. The correlations of breeding value for marbling score between via MTDFREML and via Gibbs sampler were 0.989, 0.996 and 0.985 for LDA, BF and MS respectively.

• Journal of Korean Society of Rural Planning
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• v.26 no.1
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• pp.77-88
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• 2020

This study had comparatively analyzed the influence factors of the farm village business on the local farmhouses centered on the level of importance and the level of performance. For this, a questionnaire survey had been conducted with 350 local residents who had participated in the Rural Field Forum of 14 villages, including Gyeongsangnam-do, Gyeongsangbuk-do, Chungcheongnam-do, Chungcheongbuk-do, Jeollabuk-do, etc. Excluding the insincere survey questionnaires, the final 232 people had been analyzed. As a result of the analysis of this study, the factors that have the influences on the diverse, rural areas had been compressed into the three factors of the lodging and the program, the special, rural area products, and the transportation and the accessibility. In the level of importance-level of performance analysis, it had been analyzed that the special, rural area products must maintain the continuity, that the transportation accessibility must avoid the excessive endeavor, and that the lodging program had a low priority order. Therefore, it can be said that it is necessary to concentrate the capability of the rural village business in the direction of developing the local specialties in the future. Next, after dividing the level of performance and the level of importance into the two groups each, the multiple group path analysis had been carried out. As a result, in the result of the analysis of the path that has an influence on the economic factor, the path coefficient of the level of importance of the transportation accessibility -> profit increase was 0.195+0.064 and the path coefficient of the level of performance of the transportation accessibility -> profit increase was 0.251+0.074. Therefore, both of them had the statistically significant amounts of the influences. This suggests that the transportation accessibility is an important element of the profit increase of the region. As a result, in the future, the research on the urban and rural exchanges using the even more convenient and inexpensive transportation means is needed. Most of them need the voluntary effort of the residents for being able to creatively develop and sell the native, agricultural, specialty products that are petty. Also, the rural areas need the diversities of the lodging programs and the recreational programs, a convenient reservation system, and the development of a unique tourism experience program. In the future, the researches that had been advanced in the even more detailed domain that is related to these factors are highly expected. Also, the analyses that had been carried out with even more areas and subjects as the targets are needed.

• Korean Journal of Soil Science and Fertilizer
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• v.14 no.4
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• pp.224-229
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• 1982

Effects of light intensity and temperature on photosynthesis and respiration of autogenous wild SUMBODY plants, Dystaenia takesimana, known as a prospective source of forage in Ulleung island, Korea, were investigated. Results were as follows : 1. Light saturation point at $20^{\circ}C$ was 34 to 38 klux and light compensation point was 4 to 6 klux. Apparent photosynthetic rate at light saturation was 9 to 12 mg $CO_2/dm^2/hr$. 2. Optimum temperature for photosynthesis was $20^{\circ}C$ and $Q_{10}$ values of two temperature ranges, 20 to $30^{\circ}C$ and 30 to $40^{\circ}C$, were 0.8 and 0.9 for photosynthesis, while $Q_{10}$ for respiration were 1.6 and 1.7. 3. Native plants sampled in area of higher altitude had a higher apparent photosynthtic rate at lower temperature and the plants sampled in area of mixed with bushes had lower a light compensation point. These rusults suggest that the Inland weather condition of Korea during spring and fall seasons might be. suitable for the SUMBODY growth but inadequate during summer.