• Social Workers
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• no.3 s.47
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• pp.40-43
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• 2006

촛불재단의 역할은 중대한 사회문제를 해결하는 데 도움을 줄 수 있는 활동에 보다 많은 사람들을, 보다 효과적으로 참여시키는데 있다. 중고생들의 봉사활동은 방과 후, 주말, 휴일, 방학 기간에 이루어지고 있는데, 교육청과 학교는 많은 기관과 단체를 사회봉사 기관으로 지정하고 학생들로 하여금 각 기관에서 활동 내용, 시간, 장소를 선별해서 활동하도록 권장하고 있다.

• Defense and Technology
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• no.10 s.224
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• pp.58-61
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• 1997

정보혁명과 멀티미디어는 현 시대를 대변하는 2가지 큰 특징이라 말할 수 있다. 정보의 양은 기하급수적으로 증가하고 있으며, 그 정보의 형태 또한 여러 방식으로 이루어지고 있다. 보다 많은 정보를, 보다 앞선 멀티미디어 기술을 이용하여 효율적으로 관리하는 것이 우리의 미래 경쟁력을 좌우하는 중요한 부분일 것이다. IETM은 CALS의 문서에 관한 표준인 SGML을 근간으로 이루어졌으며, 기술문서의 새로운 표준을 제시하고 있다.

• Proceedings of the Korea Multimedia Society Conference
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• 2003.05b
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• pp.380-384
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• 2003

현재 정보의 가치가 높아짐에 따라 생체인식에 대한 연구가 많아지고 있다. 특히 지문에 대한 연구가 활발한데 기존의 융선을 이용한 특징점 추출이 아닌 지문에서 잡음이 적은 골선을 이용하고 에지 보존 평활화를 12방향각에 대해 적용함으로 보다 세밀한 에지 보존 평활화를 사용함으로 보다 정확한 특징점 추출의 방법을 제안한다.

• Journal of The Korean Society of Grassland and Forage Science
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• v.26 no.3
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• pp.171-176
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• 2006

This experiment was carried out to breed the cold-tolerant variety of Italian ryegrass(Lolium multiflorum Lam.) in Grassland and Forages Division, National Livestock Research Institute, RDA, Suwon from 1987 to 2005. New variety, Kowinner as a tetraploid variety was dark green in leaf color and growth habit in autumn and early spring was semi-prostrate and medium, respectively Kowinner as a medium or late-heading variety was 19th May in heading date. Flag leaf length of Kowinner was 29 cm that was the same as control variety, Hwasan 101. Length of longest stem and plant length of Kowinner were 70 cm and 97 cm that was longer 3 cm than those of Hwasan 101, respectively. Stem width of Kowinner was thicker than that of Hwasan 101. Expecially, Kowinner was very good in regrowth. Cold tolerance of Kowinner was slightly weaker than that of Hwasan 101 and slightly stronger than that of Florida 80. Dry matter(DM) yield(12,884 kg/ha) of Kowinner was 8% more than that of Hwasan 101. In vitro dry matter digestibility and total digestible nutrient(TDN) of Kowinner were 76.2 and 63.3% that was 1.6 and 0.4% lower than those of Hwasan 101, respectively.

• Journal of the Korean Society of Food Culture
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• v.13 no.4
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• pp.317-326
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• 1998

This study was to investigate the eating attitute, the factor related to health, dietary habit and perceived stress of college students. Three hundred thirty three college students in Seoul area surveyed to obtain the information from July 14 to 23, 1997 The 53.5% of college students were normal weight and 43.3% of them were underweight. But female students(68.7%) showed higher proportion of underweight than male students(20.1%). Male student s(73.2%) who take exercise more than 1-2 times per week were more than female students(48.0%). Most college students(84.4%) were not satisfied their body shape and 80% of female students prefer slimmer body shape than their own body shape. The 61.5% college students did not consider the balance of meal and female students took more vegetable and fruit than male students. The 83.8% of college students took milk and yogurt more than 2-3 times per week. Dietary habit score of female students were better than that of male students. Most college students(73.8%) were highly stressed in their living. However, exercise and regularity of eating could lower their perceived stress.

• Biomedical Science Letters
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• v.5 no.1
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• pp.67-74
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• 1999

To investigate the effect of the circadian variations on the toluene metabolism, 50％ toluene in olive oil (0.2 m1/100 g body weight) was intraperitoneally administered to the rats every other day for 6 days both in the night; 24:00 and the day; 12:00. Each group of animals was sacrificed at 8 hr after last injection of toluene. Hepatic microsomal aniline hydroxylase activity was more increased in control rats of night phase than those of day phase. On the other hand, the activities of hepatic benzylalcohol dehydrogenase in control rats of night phase showed the similiar value with that in those of day phase and in case of toluene treatment, these enzyme activities in rats of night phase were rather more decreased than those of day phase. Furthermore, hepatic benzaldehyde dehydrogenase activities were more or less higher in the control rats of night phase than those of day phase and by toluene treatment, enzyme activities of rats of night phase were somewhat decreased than those of day phase. in vitro, benzylalcohol or benzaldehyde inhibited the activities of benzylalcohol or aldehyde dehydrngenase prepared from the rats liver supematant. There were no differences in urinary hippuric acid contents between the night phase and day phase both in the control and toluene treated group. The increasing rate of liver weight per body weight (％), serum xanthine oxidase activities were higher in rats of night phase than in those of day phase by toluene treatment. In conclusion, these results indicate that the producing rate of benzylalcohol and benzaldehyde from toluene may be higher in rats of night phase than those of day phase.

• Korean Journal of Soil Science and Fertilizer
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• v.12 no.1
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• pp.25-34
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• 1979

To clealify the cause of barley and wheat sterility that occurred 77 / 78 cultivation period in Yeongnam area, a few environmental conditions were analyzed. The results are summarized as follows; 1. During the important growing stages such as meiosis and heading stages of barley encountered with severe droughtiness and unusual low temperature. 2. Soil moisture contents in the double cropping paddy soils were higher than cultivated uplands, and in the subsoils than the surface soils, in the clay soils than the sandy soils, in the northern aspect than the southern aspect of slope, respectively. 3. The sterilizing percentage of barley in the double cropping paddy fields were lower than cultivated uplands, in the alluvial fans and plains were lower than cultivated uplands, in the alluvial fans and plains were lower than in rolling or in foot slopes and the northerm aspect of slopes were lower than southern aspect. 4. The sterilizing percentage in the sandy soils were higher than clay soils and in the soils that have shallower plowing layer and shallower available depth had higher sterility. 5. The sterilizing percentage of barley had negative correlation with soil moisture contents in the surface and subsoils in both of cultivated upland or double cropping paddy fields. 6. The droughtiness that prevailed over reproductive growing stages of barley might be cause the sterility and the severe coldness also could be accelerate the phenomenon.

• The Journal of Korean Physical Therapy
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• v.12 no.2
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• pp.185-190
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• 2000

Objectives: The purpose of this study was to compare the difference of Lumbar Lordosis Angle(LLA) between patients with Low Back Pain(LBP) and control groups. Methods: Questionnaires were completed by 40 adult LBP patients seeking physical therapy services and by 40 controls at the Department of Physical Therapy. Saejong Neurosurgical Clinic in Taegu city from October 1999 to March 2000. LLA was measured on lateral x-ray films in a standing position. The angle between a line parallel to the top of the first Lumbar(L1) and the top of the fifth Lumbar(L5) was defined LLA. Results: LLA of $29.88^{\circ}$ for LBP patients was a statistically significant decrease from that of $35.31^{\circ}$ for controls in the difference of lumbar lordosis(p<0.01). There were statistically significant differences between senders in patient groups. Females$(32.32^{\circ})$ had significantly greater angles than males$(27.32^{\circ})$(p<0.05), while $36.63^{\curc}$ for female was also greater than $34.12^{\circ}$ for male in the controls. No significant difference was found between age. In patient groups, $27.95^{\circ}$ for below age 40 was a smaller than $32.32^{\circ}$ for above, however, $35.82^{\circ}$ for below age 40 was a little greater than $34.27^{\circ}$ for above in controls. Patients in a sitting posture had greater LLA$(31.35^{\circ}$ than those standing$(28.93^{\circ})$, however values for controls were similar to each other. Conclusion: Results from this study indicate that distinct differences exist among patients and controls and gender, whereas little difference exists in age and working posture.

• Applied Biological Chemistry
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• v.18 no.2
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• pp.102-108
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• 1975

Acorn starch preparation and some of its characteric study were made. The results obtained were as follows. 1) Yearly production of acorn in Korea is amounted to be 1,200,000 l approximately. The content of its carbohydrate was found to be 72.8%, so that this would be considered as one of good resources of starch in our country. 2) The major moieties of tannin constituents of acorn were found to be the gallic acid, catechin and chlorogenic acid. 3) The type of acorn starch granules were short oval shaped having the diameters of that were in the range of $3.5{\sim}5.2{\mu}$ and $8.0{\sim}19.5{\mu}$, respectively. 4) Initial gelatinifalion teniperaiure of acorn starch was $62{\sim}64^{\circ}C$, similar to those of corn and wheat starch. 5) Alnylose content of acorn starch were 27.1%, which is lower than that of barley but higher than that of potato starch. 6) The raising power of the acorn starch was 12.4, which is higher than that of the potato starch but lower than those of common cereal starches. 7) The blue value of acorn starch was 0.43, similar to that of wheat starch and higher than those of wheat potato and rice starch but lower than that of barley starch. 8) The alkali number of the acorn starch was 11.03, similar to that of corn starch but higher than those of barley and rice starch.

• Journal of the Korean Recycled Construction Resources Institute
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• v.6 no.1
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• pp.72-79
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• 2011

This study is performed to analyze the effects of CASB by applying the superplasticizer combined CASB on the ultra high strength mortar and concrete that uses different mineral admixture depending on whether the silica fume was used and the results are summarized below. From the characteristics of Fresh mortar and concrete, the fluidity was lower in B2-CASB than B2-PC from the mixing of CASB and based on the viscosity of the mortar and concrete in the binary proportion but in the ternary proportion, B3-CASB showed a larger fluidity than B3-PC because of a reduction in the restriction level due to the effects of an improvement of particle size distribution. The compression strength was higher in ternary proportion than in binary proportion and higher in CASB than in PC from the characteristics of hardening mortar and concrete and this is analyzed as a result of increased minuteness from the calcium silicate hydrates produced from the pozzolan reaction of a mineral admixture, SF, and also the charging effects of capillary pore of CASB. Overall, when using the nanomaterial, CASB in combination with a superplasticizer, the fluidity and the strength aspects of the ternary proportion of ultra high strength mortar and concrete with silica fume may be improved to a higher quality.