實驗大學 實施에 따른 師範大學 學生實態 (Ⅱ)

林在圭,吳岱燮,琴鍾友,李潤樹 慶北大學校 師範大學 1978 敎育硏究誌 Vol.20 No.-

The purposes of this study were (1) to reexamine what were found by the survey on KNU Teachers College Students after the Pilot School Project (Ⅰ) in order to assess the possibility of .generalizing results of the survey across different groups of students who enter Teachers College after the Pilot School Project was implemented, (2) and to examine students' opinion toward the current procedures of assingning freshemen to departments or majors of the Teachers College. The subjects were freshmen of KNU Teachers' College from 1975 to 1777 academic year. However, the data pertaining to the students from 1975 to 1976 had been gathered while the survey on Teachers College Students after the Pilot School (Ⅰ) was being carried out. In order to collect the data with regard to the students entered the Teachers College in 1977, four different questionnaives were employed. The data were statistically tested by means of chi-technique only when it seemed necessary and appropriate. Major findings of this study are as following: (1) After the Pilot School Project was employed, there were general tendency in students' reason applying for admission to KNU Teachers College: Each academic year, approximately 40% of freshmen decided to enter the college to be secondary school teachers in the future. (2) Students' attitude toward the new procedures of screening college applicants, which was employed after the Pilot School Project, were negative in general. Furthermore, their negative attitude became stronger year by year. (3) The degree of students' satisfaction with their majors were relatively higher than that expressed by the students who entered the college before the Pilot School Project was employed. (4) Both students' criteria for selecting their majors and then reasons for changing their majors which they had been interested in applying were varied across time subjects and time. (5) The obtained contingency coefficient between departments and GPA students of each department earned during thir freshmen year was 0.831. It seems to indicate that majority of freshment tends to choose their majors according to their GPA rather than their interest or aptitude. (6) Approximately 67.73% of freshmen of the 1977 academic year accepted the end of the academic year as the most appropriate time for assigning them to departments they desire to enter. 7) Approximately 52.10% of freshment supported the idea of assigningas many students to the departments as they wish to enter, as far as it is possible, by adjusting the capacity of department, which is regulated by MOE. (8) Approximately 61.08% of freshmen claimed not to deduct their GPA when their first choice of department became impossible and turned down to the second or the third one.

벼에 대한 돈분뇨 혐기성 소화액비의 시용기준 연구

임동규,박우균,권순익,남재작,박백균,김승환 한국환경농학회 2002 한국환경농학회지 Vol.21 No.4

가축분뇨물 혐기소화하여 메탄가스를 생산하고 난 다음 혐기성 소화액비를 비료자원으로 활용하기 위하여 농가포장에서 액비의 시용기준을 구명하였다. 벼 생육상황은 분얼기 및 출수기에 액비 70%+화학비료 30% 및 액비 100%구의 경수만 타 처리구보다 약간 많았다. 시기별 식물체 중 절진소함량은 표준시비구가 생육초기에 기비 및 분얼비의 영향으로 타 처리구보다 높았다. 벼 수량은 액비 70%+화학비료 30% 및 액비 100%구가 표주시비구보다 약간 증수되었으나, 액비 50%+화학비료 50%구는 표준시비구보다 약간 낮았다. 수확기 질소흡수량, 시비질소 효율 및 시비질소 이용율은 수량이 많았던 액비 70%+화학비료 30% 및 액비 100%구에서 높았다. 시기별 토양 중 NH_4-N함량 및 NO_3-N함량 변화는 표준시비구 및 액비 50%+화학비료 50%구가 생육초기에만 타 처리구보다 약간 높았다. 시기별 관개수 중 NH_4-N함량 변화는 분얼비의 영향으로 급격히 증가하였다가 급격히 감소하였는데 증가한 시기에는 표준시비구 > 액비 50%+화학비료 50%구가 타처리구보다 높았으나, NO_3-N함량은 처리 간 차이가 없었다. 시기별 침투수 중 NH_4-N함량 및 NO_3-N함량 변화는 무비구가 생육초기에 타 처리구보다 약간 높았는데, 이것은 벼 생육불량에 의한 양분흡수가 적어지면서 상대적으로 지중으로 침투가 많았기 때문인 것으로 생각다. 따라서 혐기성 소화액비의 적정 시용기준은 표준시비량의 질소성분 70%을 액비로서 전량기비로 사용하고, 나머지 30% 질소성분을 화학비료로 분얼비 10% · 수비 20% 시용하는 것이 효과적이었다. This study was conducted to evaluate the effect of the proper application level of anaerobic digestion waste water on rice. The waste water was from methane fermentation of pig manure to use as a liquid manure. The mixture treatment of 70% liquid manure and 30% chemical fertilizer (LM 70%+CF 30%) and 100% liquid manure (LM 100%) treatment were higher number of tiller than other treatments at the both tittering and heading stages of rice. The yields of LM 70%+CF 30% and LM 100% treatments were a little higher than that of NPK treatment, but the mixture treatment of 50% liquid manure and 50% chemical fertilizer (LM 50%+CF 50%) was a little lower yield than NPK treatment. The periodic changes of the NH_4-N and NO_3-N contents of the NPK and the LM 50%+CF 50% treatments in paddy soil were a little higher than those of other treatments at the early stage of rice. The NHL_4-N contents of NPK and the LM 50%+CF 50% treatments in irrigation water quality were higher than those of other treatments, however there was no difference in NO_3-N content among the treatments. The NH_4-N and NO_3-N contents of non fertilizer treatment in infiltration water quality were leached a little higher than those of other treatments. It may be due to poor growth of rice following to reduce the nutrient uptake by rice and to increase relatively the nutrient leaching to the ground water. The proper application level of anaerobic digestion waste water as a liquid manure could be suggested to apply LM 70%+CF 30%. All treatments were the same amount of nitrogen content for the standard application amount on rice.

USLE 계열모형의 매개변수 산정에 관한 연구

임재영,서규우,송일준,송무효 동의대학교 산업기술개발연구소 2000 産業技術硏究誌 Vol.14 No.-

In this study, USLE series parameter's characters are assessed each parameter. Main topic is propose for Assesment method. In case of Soil erosion energy factor for single storm, return period is commended 5 year. In case of Soil Erodibility factor, Percentage of Clay is increase then K value is decrease. In case of Slope Steepness-length factor, If the homogeneous slope length divide into short length, Sediment yield become exaggerated estimation. In condition of low steepness Slope basin, As the sensibility of Slope gradient, estimation of slope gradient must to be exceedingly careful. Also, the average slope where is low slope gradient basin is to be prudent. In spite of the same site, design engineer understood that site is convex configuration, soil erosion is estimated very much. In this study proposed cover factor estimation process. In case of soil conservation practice factor, I proposed that P factor substituted for delivery ratio, developed by US Forest Service.

기판 바이어스에 의해 증착된 Ta 확산 방지막의 열적 안정성

임재원,배준우,Isshiki, Minoru 대한금속재료학회 2003 대한금속·재료학회지 Vol.41 No.11

The interfacial reactions of the Cu(100 nm)/Ta(50 nm)/Si structures and their relationship with the microstructure of Ta diffusion barriers are investigated. The Ta films were deposited on Si (100) substrates at various bias voltages ranging from 0 to -200 V. The Ta diffusion barrier which was deposited at the substrate bias voltages of -50 V and -125 V prevented Cu-Si interaction up to 600℃ in flowing purified H₂ for 60 min, whereas the Ta layer with a columnar structure which was deposited at zero bias voltage degraded at 400℃. It was found that a slight resistivity increase of the Cu/Ta(-50 V or -125 V)/Si structures at 650℃ seemed to be due to a Cu agglomeration. To confirm the thermal stability of the Ta diffusion barrier deposited at the substrate bias voltage, a SiO₂ capping layer was used as a suppressor and was deposited on the Cu/Ta(-125 V)/Si structure. As a result, the Cu/Ta(-125 V)/Si structures were stable up to 650℃ without the Cu-Si interaction. Two different reactions of the Cu/Ta(0 V)/Si and the Cu/Ta(-50 V or -125 V)/Si structures concerning the thermal stability were discussed on the basis of the experimental results.

벼에 대한 돈분뇨 혐기성 소화액비의 사용적량 구명

임동규,박우균,권순익,남재작,이상범 한국환경농학회 2002 한국환경농학회지 Vol.21 No.4

가축분뇨를 혐기성소화하여 메탄가스를 생산하고 난 다음 혐기성 소화액비를 비료자원으로 활용하기 위하여 농가포장에서 액비의 시용적량을 구명하였다. 벼 생육상황은 액비 100%+화학비료구가 전 시기를 통해 가장 양호하였으며, 그 다음으로 표준시비구가 분얼기에만 양호하였으나 그 이후에는 표준시비구·액비 100%구 및 액비 150%구 간에는 서로 차이가 없었다. 시기별 식물체중 전질소함량은 분얼기 및 출수기에는 추비의 영향으로 표준시비구가, 유수형성기에는 액비 100%+화학비료구가 높았다. 벼 수량은 액비 100% 및 150%구들이 표준시비구와 비슷하거나 약간 증수되었으며, 액비 100%+화학비료구는 고중의 증가 및 도복으로 인하여 표준 시비구보다 수량이 오히려 약간 낮았다. 수확기 질소흡수량은 표준시비구가 가장 높았고 ,시비질소 효율은 액비 100%구에서, 시비질소 이용율은 액비 100%+화학비료구에서 높았다. 시기별 토양중 NH₄-N 및 NO₃-N함량 변화는 액비 100%+화학 비료구가 타 처리구보다 높았다. 시기별 관개수 중 NH₄-N 및 NO₃-N함량 변화는 분얼비의 영향으로 급격히 증가하였다가 급격히 감소하였는데, 증가한 시기에는 표준시비구 및 액비 100%+화학비료구가 가장 높았다. 시기별 침투수 중 NH₄-N함량 변화는 액비 150%구들에서 많이 용탈되었구 NO₃-N 함량은 액비에 화학비료를 추비한 구들에서 많이 용탈되었다. 혐기성 소화액비는 액비 중의 질소성분을 분석하여서 표준시비량의 질소성분에 맞추어 시용하여야 한다. This study was carried out to evaluate the proper application amount of anaerobic digestion waste water and the environmental influence on rice. The waste water collected after methane fermentation process of pig manure was used as a liquid manure. Liquid manure 100%+chemical fertilizer 30%(LM 100%+CF 30%) treatment was the most favorable at all growth stages of rice. The LM 100%+CF 30% treatment was applied to 100% amount of liquid manure which was correspond to the same amount of nitrogen for the standard application amount on rice, with adding 30% amount of chemical fertilizer(urea) at tillering stage. The yields of rice in the treatments of 100%(LM 100%) and 150% amount(LM 150%) of liquid manure were similar or a little higher than NPK treatment, but LM 100%+CF 30% treatment was less than the NPK treatment due to the increase of straw weight and plant lodging. In periodic changes of the NH_4-N and NO_3-N contents, the LM 70%+CF 30% treatment in paddy soil was the highest in all treatments. The NPK and the LM 100% treatments in irrigation water quality were higher than other treatments. In infiltration water quality, M44-N content was leached out much in the LM 150% treatment and NO_3-N content was in the LM 100%+CF 30% treatment. The proper application amount of anaerobic digestion waste water as a liquid manure must be to analyse the nitrogen content of the waste water and to apply the same amount of nitrogen for the standard application amount on rice.

열성화상으로 인한 상후두부 통증에서 상후두신경차단의 진통효과 : 증례보고

임경준,이재황,고우석 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.3

Thermal bum of pharynx and larynx can cause dysphagia and dyspnea which can be life threatening. Pain of larynx due to thermal bum does not subside sufficiently to drug therapy, Physiologic therapy. Here a case of acute epiglottitis with severe pain, which was successfully treated with superior laryngeal nerve block, is reported.

기무라씨병의 치험례 -2례 증례보고-

임재호,최재원,김우경,정전은 大韓成形外科學會 1990 Archives of Plastic Surgery Vol.17 No.5

Kimura's diseas is a distinct clinico-pathologic entity characterized by proliferation of vascular endothelial cells and lymphoid hyperplasia with florid germinal centers associated with lymphocytic, histiocytic and eosinopholic infiltration. Two cases of Kimura's disease are presented. The first was 53 year-old female patient who had a slow growing mass on right parotid area. The second case was a 25 year-old female patient with two irregular growing masses on both submandibular region. Both cases had markedly increased peripheral eosinophilia with 34% in first case and 31% in second case. The first was treated by superficial parotidectomy and the second by direct surgical excision of masses. The specimens were confirmed ad Kimura's disease on histopathologic examination and the two cases are presented with the review of literature.

乳牛의 血液性狀과 泌乳量에 關한 硏究

林貞澤,金宇權,李載洪,韓邦根 全南大學校農漁村開發硏究所 1982 農業科學技術硏究 Vol.17 No.2

國內에서 飼育되고 있는 Holstein種의 血液成分値 그리고 血液成分値와 泌乳量과의 相關關係등을 檢討할 目的으로 全南地域에서 飼育되고 있는 外觀上 健康하다고 認定된 Holstein種 870餘頭를 對象으로 血液成分値를 調査檢討 하였고 한편 産乳量을 調査하여 血液成分値와 産乳量과의 關係를 檢討하여 다음과 같은 結論을 얻었다. 1. 平均 RBC數는 5.97(3.20~9.96)×10 6/㎕이었으나 成牝牛의 平均 RBC數는 6.06(3.20~9.74)×10 6/㎕이었으며 年齡別 平均 RBC數에서 1年牛가 5.19×l0 6/㎕로 特히 낮았다. 2. 平均 Hb量은 9.61(5.3-18.4)g/100ml 이었으나 成牝牛의 平均 Hb量은 9.42(5.3-18.4)g/100ml 이었으며 年齡別 平均 Hb量에서 2年牛가 8.97g/100ml로 特히 낮았다. 3. 平均 PCV値는 31.10(19~5)ml/100ml이었으며 成牝牛의 平均 PCV値는 31.04(19~55)ml/100ml 이었으며 年齡別 平均 PCV値에서 2年牛가 29.84ml/100ml로 가장 낮았다. 4. 平均 MCV値는 52.09(23.77~86.57) fl이었으나 成牝牛의 平均 MCV値는 51.22(29.77~86.57)fl 이었으며 1年未滿牛의 55.64fl 및 1年牛의 57.63fl 등 송아지에서 더 높았다. 5. 平均 MCH値는 16.10(8.21~28.96)pg 이었으며 成牝牛의 平均 MCH値는 15.54(8.21~28.96)pg 이었으며 1年未滿牛의 18.41pg 및 1年牛의 19.17pg 등 송아지에서 더 높았다. 6. 平均 MCHC値는 30.90(17.35~53.75)g/100ml 이었으나 成牝牛의 平均 MCHC値는 30.35(17.35~53.57)g/100ml 이었으며 1年未滿牛의 33.27g/100ml 등 송아지에서 더 높았다. 7. 貧血牛는 大部分이 大赤血球性이며 高血色素性이었으나 小赤血球性(MCV 37.15fl)이며 低血色素性(MCH 12.35pg)인 個體, 大赤血球性이며 低血色素性(MCHC 24.21g/100ml)인 個體 그리고 小赤血球性(MCV 35.71fl)이며 高血色素性(MCHC 40.83g/100ml)을 나타낸 個體도 發見되었다. 8. 平均 WBC數는 10.186(3,200~31,600)㎕ 이었고 成牝牛의 平均 WBC數는 10,408(3,200~31,600)㎕으로 어느 年齡層에서나 높은 値이었으나 2年牛가 12,647/㎕로 特히 높았다. 9. WBC鑑別計數의 平均値는 淋巴球가 66.95(36~91), 單核球가 3.08(0~12), 好中球가 25.69(2~54), 好酸球가 3.84(0~18) 그리고 好鹽基球가 0.44(0~5)%이었으나 成牝牛의 平均値는 淋巴球가 65.87(36~86), 單核球가 3.15(0~9), 好中球가 25.84(6~53), 好酸球가 4.73(0~15) 그리고 好鹽基球가 0.4(0~2)% 이었다. 10. 淋巴球는 1年牛를 頂点으로 年齡의 增加에 따라서 減少하고 있었으나 好中球는 1年牛가 가장 낮았으며 年齡의 增加에 따라서 增加하여 淋巴球와는 負의 相關關係를 나타냈고 單核球와 好酸球는 高齡牛에서 若干 높은 傾向이 있었다. 11. 平均血小板數는 252,429(93,000~964,000)/㎕이었으나 成牝牛의 平均血小板數는 245,658(110,000~570,000)/㎕이었으며 年齡別特徵은 認定할 수 없었다. 12. 平均血淸TP量은 6.88(4.10~10.20)g/100ml이었으나 成牝牛의 平均血淸TP量은 7.35(5.10~10.20)g/100ml이었으며 年齡의 增加에 따라서 점점 增加하는 傾向이 있었다. 13. 平均血淸Alb量은 3.43(2.00~4.40)g/100ml이었으나 成牝牛의 平均血淸Alb量은 3.51(2.00~4.40)g/100ml이었으며 1年未滿牛의 3.33g/100ml 및 1年牛의 3.31g/100ml등 송아지에서 若干 더 낮은 傾向이 있었으나 그 外는 거의 비슷하였다. 14. 平均血淸Glb量은 3.45(1.10~7.15)g/100ml이었으나 成牝牛의 平均血淸Glb量은 3.84(1.40~7.15)g/100ml이었으며 年齡의 增加에 따라서 점점 增加하는 傾向이 있었다. 15. 平均血淸A/G比는 0.99(0.40~3.33)이었으나 成牝牛의 平均血淸A/G比는 0.91(0.43~2.64)이었으며 年齡의 增加에 따라서 점점 減少하는 傾向이 있었다. 16. 平均血淸 cholesterol量은 145.65(44.0~336.0)mg/100ml이었으나 成牝牛의 平均血淸cholesterol量은 180.93(46.4~336.0)mg/100ml이었으며 年齡의 增加에 따라서 增加하여 4年牛를 頂点으로 다시 下向하는 傾向을 나타내고 있었다. 17. 平均血淸 glucose量은 46.00(27.0~96.0)mg/100ml이었으나 成牝牛의 平均血淸glucose量은 39.61(27.0~65.0)mg/100ml이었다. 血淸 glucose量은 全般的으로 낮은 値이었으나 年齡別 平均血淸glucose量에서 1年未滿牛가 58.07(39.7~96.0)mg/100ml로 가장 높았으며 特히 어린 송아지에서 높았다. 18. 平均血淸Mg量은 2.68(0.20~8.60)mg/100ml이었으나 成牝牛의 平均血淸Mg量은 2.72(0.20~8.46)mg/100ml이었으며 年齡別 平均血淸Mg量에서 7年以上牛가 2.27mg/100ml로 特히 낮았으며 老齡牛에서 Mg의 減少가 顯著하였다. 19. 平均血淸Ca量은 4.36(3.16~8.40)mEq/L이었고 成牝牛의 平均血淸Ca量도 4.37(3.16~8.40)mEq/L로 全般的으로 낮은 量이었으며 年齡別 特徵은 認定할 수 없었다. 20. 平均血淸P量은 6.27(3.10~9.78)mg/100ml이었으나 成牝牛의 平均血淸P量은 5.92(3.10~9.78)mg/100ml이었으며 年齡別 平均血淸P量에서 1年未滿牛가 7.50(4.70~9.40)mg/100ml로 特히 높았다. 21. 平均血淸Ca/P比는 1.39(0.68~2.64)이었으나 成牝牛의 平均血淸Ca/P比는1.48(0.68~2.64)로 全般的으로 낮은 値이었으며 年齡別 平均血淸Ca/P比에서 1年未滿牛가 1.21(0.83~1.93)로 가장 낮았다. 22. 平均血淸K量은 4.94(3.5~6.7)mEq/L이었으나 成牝牛의 平均血淸K量은4.84(3.5~6.2)mEq/L이었으며 年齡別 血淸K量에서 1年未滿牛가 5.22(4.0~6.7)mEq/L로 特히 높았으며 그外는 거의 비슷하였다. 23. 平均血淸Na量은 138.43(123~157)mEq/L이었으나 成牝牛의 平均血淸Na量은137.32(123~157)mEq/L이었으며 1年未滿牛의 139.74mEq/L 및 1年牛의 140.16mEq/L등 송아지에서 더 높았다. 24. 平均血淸Cl量은 99.96(84.6~123.0)mEq/L이었고 成牝牛의 平均血淸Cl量도 100.09(84.6~123.0)mEq/L로 年齡別差異点은 발견할수 없었다. 25. 平均血淸Na/K比는 28.02(21.49~37.14)이었으나 成牝牛의 平均血淸Na/K比에서 1年未滿牛가 26.77(21.49~35.00)로 特히 낮았다. 26. RBC數, Hb數, PCV値, MCH 및 MCHC는 모두 15~20kg群에서 第一 높았고 20~25kg群, 25kg以上 群으로 갈수록 낮아지는 傾向을 보였다. 卽 赤血球系 檢査値와 産乳量과는 負의 相關關係에 있는 것으로 보아진다. 27. WBC數와 産乳量과는 負의 相關關係가 있는 것으로 보아지며 血小板數와 産乳量과는 特別한 關係를 認定할 수 없었다. 28. WBC鑑別系數와 産乳量과의 相關에서는 淋巴球는 負의 相關關係에 있는 것으로 보아지며 好中球는 淋巴球와는 反對로 正의 相關關係에 있는 것으로 보아진다. 한편 單核球와 好酸球는 産乳量增加에 따라서 增加하는 傾向이 있었다. 29. 血淸TP量 및 血淸Glb量은 産乳量增加에 따라서 增加하는 傾向이 있었으며 血淸Alb量 및 血淸A/G比는 産乳量增加에 따라서 減少하는 傾向이 있었다. 30. 血淸glucose量과 産乳量과는 負의 相關關係에 있는 것으로 보아지며 血淸cholesterol量은 産乳量增加에 따라서 增加하는 傾向이 있었다. 31. 血淸Mg量은 産乳量이 가장 많은 25kg以上群에서 特히 낮았으며 血淸Ca 및 P量은 産乳量增加에 따라서 增加하는 傾向이 있었으나 血淸Ca/P比는 産乳量增加에 따라서 減少하는 傾向이 있었다. 32. 血淸Na量 및 血淸Na/K比는 産乳量과는 正의 相關關係에 있는 것으로 보아지며 血淸K量은 産乳量增加에 따라서 減少하는 傾向이 있었고 血淸Cl量과 産乳量과는 特別한 關係를 認定할 수 없었다. This work was conducted to determine the composition of the blood of Holstein cattle in Korea and the relationships between the blood composition and milk production. Blood samples were taken from 870 healthy cattle in Chonnam province. Milk yield was recorded, and the results obtained in this study are summarized as follows: 1. Mean red blood cell(RBC) count was 5.97(3.20~9.96)×10 6/㎕, whereas the RBC count of adult cows was 6.06(3.20~9.74)×10 6/㎕. The RBC count between age groups appeared to be especially lower in the age group of 1 year(5.19×l0 6/㎕) than in the other age groups. 2. Mean hemoglobin(Hb)content was 9.61(5.3-18.4)g/100ml, whereas the Hb content of adult cows was 9.42(5.3-18.4)g/100ml. The Hb content between age groups appeared to be especially lower in the age group of 2 years(8.97g/100ml) than in the other age groups. 3. Mean packed cell volume(PCV) was 31.10(19-5)ml/100ml. The PCV between age groups was lowest in the age group of 2 years(29.84ml/100ml). 4. Mean corpuscular volume(MCV) was 52.09(23.77-86.57) fl. whereas the MCV of adult cows 51.22(29.77-6.57) fl. Mean corpuscular hemoglobin(MCH) was 16.10(8.21-28.96) pg, whereas the MCH of adult cows was 15.54(8.21-28.96) pg. Mean corpuscular hemoglobin concentration(MCHC) was 30.90(17.35-53.57)g/100ml, whereas MCHC of adult cows was 30.35(17.35-53.57)g/100ml. The MCV, MCH and MCHC appeared to be higher in the calves and heifers than in the adult cows. 5. Most anemic cattle showed macrocytic, hyperchromic anemia. Various types of anemia were detected; microcytic(MCV 37.15 fl) hypochromic(MCH 12.35.pg); macrocytic hypochromic(MCHC 24.21g/100ml); microcyticfMCV 35.71 fl)hyperchromic(MCHC 40.83g/100ml). 6. Mean white blood cell(WBC) count was 10,186(3,200-31,600)/ l, which was high compared with other results. The WBC count between age groups appeared to be especially higher in the age group of 2 years(12, 647/yu.e) than in the other age groups. 7. Mean differential WBC count was lymphocyte 66.95(36-91), monocyte 3.08(0-12), neutrophil 25.69(2-54), eosinophil 3.84(0-18) and basophil 0.44(0-5%), respectively, while in the adult cows, it was lymphocyte 65.87(36-86), monocyte 3.15(0-9), neutrophil 25.84(6-53), eosinophil 4.73(0-15) and basophil 0.41(0-2)%, respectively. Lymphocyte count increased up to 1 year of age and thereafter it decreased with age, whereas the reverse was the case with neutrophil count. There was a negative correlation between lymphocyte and neutrophil counts. Monocyte and eosinophil counts tended to be slightly higher in the older age groups. 8. Mean platelet count was 252,429(93,000-964,000)/㎕; no differences were found in the platelet count between age groups. 9. Mean serum total protein(TP) content was 6.88(4.10-10.20)g/100ml, while the TP content of adult cows was 7.35(5.10-10.20)g/100ml. The TP content tended to increase with age. 10. Mean serum aIbumin(Alb) content was 3.43(2.00-4.40)g/l00ml, while the Alb content of adult cows was 3.51(2.00-4.40)g/100ml. The Alb content appeared to be lower in the calves and heifers than in the adult cows. 11. Mean serum globulin(GIb) content was 3.45(1.10-7.15)g/100ml, while the Gib content of adult cows was 3.84(1.40-7.15g)/100ml. The Gib conienc tended to increase with age. 12. Mean serum .albumin: globuIin(A/G) ratio was 0.99(0.40-3.33), while the A/G ratio of adult cows was 0.91(0.43-2.64). The A/G ratio tended to decrease with age. 13. Mean serum cholesterol concentration was 145.65(44.0-336.0)mg/100ml, whereas the scrum cholesterol concentration of adult cows was 180.93(46.4-336.0)mg/100ml. The serum cholesterol concentration increased up to 4 years of age and thereafter it decreased with age. 14. Mean serum glucose concentration was 46.00(27.0-96.0)mg/100ml, whereas the serum glucose concentration of adult cows was 39.61(27.0-65.0)mg/100ml, which was low compared with other results. The serum glucose concentration between age groups appeared to be especially higher in the age group of less than 1 year(58.07mg/100ml) than in the other age groups. 15. Mean serum magnesium(Mg) concentration was 2.68(0.20-8.60)mg/100ml, whereas the Mg concentration of adult cows was 2.72(0.20-8.46)mg/100ml. The Mg concentration between age groups appeared to be especially lower in the age group of more than 7 years(2.27mg/100ml) than in the other age groups. Decreased Mg concentration was shown in older cows. 16. Mean serum calcium(Ca) concentration was 4.36(3.16-8.40)mEq/L, which was low compared with other results. No differences were found in the Ca concentration between age groups. 17. Mean serum inorganic phosphate(P) concentration was 6.27(3.10-9.78)mg/100ml, whereas the P concentration of adult cows was 5.92(3.10-9.78)mg/100ml. The P concentration between age groups appeared to be especially higher in the age group of less than 1 year(7.50mg/100ml) than in the other age groups. 18. Mean serum calcium: inorganic phosphate(Ca/P) ratio was 1.39(0.68--2.64). The Ca/P ratio of adult cows was 1.48(0.68-2.64), which was lower compared with other results. The Ca/P ratio between age groups was lowest in the age group of less than 1 year(1.21). 19. Mean serum potassium(K) concentration was 4.94(3.5-6.7)mEq/L> whereas the K concentration of adult cows was 4-84(3.5-6.2)mEq/L. The K concentration between age groups appeared to be especially higher in rhe age group of less than 1 year(5.22mEq/L) than =n the other age groups. 20. Mean serum sodiurn(Na) concentration was 138.413(123-157)mEq/L> whereas the Na concentration of adult cows was 137.32(123-157)mEq/L. The Na concentration between age groups appeared to be higher in the calves and heifers than in the adult cows. 21. Mean serum chloride concentration was 99.96(84.6-123.0)mEq/L; no differences were found between age groups in the scrum chloride concentration. 22. Mean serum sodium: potassium(Na/K) ratio was 28.02(21.49-37.14), whereas it was 28.37(22.00-37.14) in the adult cows. The Na/K ratio between age groups appeared to be especially lower in the age group of less than 1 year(26.77) than in the other age groups. 23. The values of RBC count, Hb content, PCV, MCH and MCHC increased up to 15-20kg milk yielding group and thereafter they tended to decrease with higher milk yielding groups. In other words, there was a negative correlation between the values of erythrocytic series and milk production. 24. The leukocyte and lymphocyte count were a negative correlation with milk yield, while the neutrophil count was a positive correlation wirh milk yield. The monocyte and eosinophil count tended to increase as milk production increased. No relationships were found between the platelet count and milk production. 25. The serum total protein and globulin content tended to increase as milk production increased, while the reverse was the case with serum albumin content and A/G ratio. 26. The serum glucose concentration was a negative correlation with milk yield. The Serum cholesterol concentration tended to increase as milk production increased. 27. The serum calcium and inorganic phosphate concentration tended to increase as milk production increased, while the opposite was the case with Ca/P ratio. The serum magnesium concentration was especially lower in the highest milk yielding group than in the other milk yielding groups. 28. The serum sodium concentration and the Na/K ratio tended to increase as milk production increased. In other words, there was a positive correlation with milk yield. The serum potassium concentration tended to decrease as milk production increased. No relationships were found between the serum chloride concentration and milk production.

Hydroxy Propyl Methyl Cellulose 분진의 습도와 온도에 대한 영향성 연구

임우섭,목연수,최재욱 한국안전학회 2004 한국안전학회지 Vol.19 No.3

This study was performed with Hartmann type dust explosion apparatus and Godbert-Greenwald furnace apparatus in order to research the effect of temperature and humidity affecting LEL, minimum ignition temperature of Hydroxy Propyl Methyl Cellulose. The experimental determinations in the range between 20℃ and 60℃ of temperature was not affected LEL(180g/m³) but LEL showed 200g/m³ and 250g/m³ at 80℃ and 100℃. As the change of humidity LEL was 180g/m³ for 50%, 200g/m³ for 60% and 250g/m³ for 70% but dust explosion didn't occur over 80%, The ignition temperature of HPMC dust clouds was increased as increasing of humidity. So, the minimum ignition temperatures at 50%, 60%, 70%, 80% of humidity was 363℃, 375℃, 397℃, 405℃.

쌍대단체법의 효율적인 구현을 위한 기법

임성묵,박찬규,김우제,박순달 한국경영과학회 1999 經營 科學 Vol.16 No.1

The purpose of this paper is to develope efficient techniques for implementing the dual simplex method in this paper we proposed one artificial row technique to get an initial dual feasible basic solution, a dual steepest-edge method coupled with a dropping row selection rule, and an anti-degeneracy technique which resembles the EXPAND procedure for the primal simplex method the efficiency of the above techniques is shown by experiments Finally, the dual simplex method is shown to be superior to the primal simplex method when it is used in the integer programming