기관사의 태도가 직무만족에 미치는 영향에 관한 실증적 연구 Ⅰ

김충수 철도전문대학교 2004 論文集 Vol.19 No.-

Recently, The business environment is very rapidly changed and complicated. Therefore, the companies are confront with the biggest difficulty. To overcome this difficulty, the management should be able to accomplish the human resources management and the efficient business management. Korean National Railroad(KNR) enterprise is public enterprise. KNR has a close association with national life as it carries out public works based on its public nature as well as purses the corporate spirit. For that reason, KNR has a great spin-off on national economy and exerts a tremendous impact on the improvement of productivity around the industries and the international competitiveness at aspect of efficiency resulting from business rationalization. Railroad system can be described as organic. Engine drivers take a great role in this system. According the psychology and the Organization Behavior, the decision maker's attitude, personality and employee' work satisfaction have influence on performance. The purpose of this study is to examine the engine drivers' Attitude, Personality and Work satisfaction which influence on the efficient business management.

식물의 Saline Stress하에서의 광합성 및 호흡에 관한 연구

김충수 한국작물학회 1989 한국작물학회 학술발표대회 논문집 Vol.1989 No.-

제국주의측면에서 본 미국자본수출의 특성

김충수 단국대학교 무역학과 1993 무역논집 Vol.- No.7

초지유형별 목초의 생산성 및 이용성분석에 관한 연구

김충수(C . S . Kim),이인덕(I . D . Lee),박종수(J . S . Park),임동찬(D . C . Rim) 한국축산학회 1989 한국축산학회지 Vol.31 No.11

A study was conducted to determine the herbage productivity and availability upon the flat, slope and forest type of grassland using Korean native cattle and sheep under 4 year old grassland established by intensive and semi-intensive sowing methods in Daecheon, from 1987 to 1988. The results obtained are summarized as follows ; 1. Orchardgrass made up the major plant species of the diets on all grassland types, especially the proportion of orchardgrass was 81-92% of the diets on the forest grassland. The proportions of tall fescue and ladino clover of the diets slightly increased on the flat and slope grassland in summer(July and August). Plant height and leaf area indes (LAI) on the flat, slope and forest grassland were 23.9cm-3.46, 23.1 cm-3.27 and 21.3cm-2.91 in average, respectively. Total dry matter(DM) yield per ha on the flat, slope and forest grassland was 10,286kg, 9,563kg and 6,341kg, respectively. The seasonal distribution of DM yield on all grassland types was 64∼70% in spring (April, May and June). Crop growth rate (CGR) on the flat, slope and forest grassland were 44.4kg, 41.4kg and 27.3kg, respectively. 2. Contents of crude protein (CP) and in vitro DM digestibility(IVDMD) of collected herbage samples were high in spring, while contents of crude fiber(CF) and neutral detergent fiber(NDF) were high in summer on all grassland types. The order of the contents of CP and IVDMD was flat$gt;slope$gt;forest grassland. The DM and organic matter(OM) intake per unit metabolic body size(g/w^75kg) were high on the flat, grassland, but those on the forest grassland, were low, digestible DM intake(DDMI) and DOMI showed a same tendency. Significantly positive correlations was found between DMI and CP(p$lt;0.05), and IVDMD(p$lt;0.01), but significantly negative correlation(p$lt;0.05) was found between DMI and NDF on all grassland types. The order of the DMI was spring$gt;summer$gt;autumn. 3. The percentage of herbage utilization on the flat, slope and forest grassland was 76.2%, 75.2% and 74.8%, respectively. The order of diet preference based on the relative intake index(RII) and touch number was flat$gt;slope$gt;forest grassland. Grazing capacity on the flat, slope and forest grassland was 542,496 and 323 cow-day/ha in average, respectively. The calculated value of grazing area per cattle(AU) on the flat, slope and forest grassland was 0.67ha, 0.74ha and 1.13ha, respectively. 4. Grazing and ruminating time were not different among the grassland types, but those were slightly increased on the forest grassland. Resting and loafing time were slightly increased on the flat grassland. Walking time was increased on the slope grassland. The number of rumination, chews per bolus and urination were slightly increased on the forest grassland, but defecation number was increased on the flat grassland. The number of drinks, total drinking water consumption and walking distance were slightly increased on the slope grassland. 5. Animal distance and occupied area per cattle on the flat, slope and forest grassland were 4.34m-11.7㎡, 3.97m-12.6㎡ and 3.76m-16.8㎡, respectively. Subgroup formation on those grassland was 3.9head, 4.4 head and 4.2 head per group respectively. The order of grazing movement was similar to the pear-shaped grazing formation, but the relation of dominance between first grazer and last grazer upon different grassland types was not clear. 6. Eating, ruminating and chewing time on the flat grassland were slightly less than on the other grassland. The order of eating rate, ruminating and chewing efficiency was flat) slope) forest grassland. 7. Live weight gain per day on the flat, slope and forest grassland during the grazing and feeding was 0.586-0.923kg, 0.565-0.882kg and 0.470-0.826kg, respectively. The order of feed efficiency was flat$gt; slope$gt;forest$gt;grassland. 8. The cost value of grasses per ha which was not included the rent was 650.1 thousand won on the flat, 650.1 thousand won on the slope and 5

종계의 생산성 저하 원인과 대책

김충수 대한양계협회 1996 월간 양계 Vol.28 No.3

참깨의 發芽特性에 關한 硏究

金忠洙 충남대학교 농업과학연구소 1983 農業技術硏究報告 Vol.10 No.1

This study was carried out to define the effects of external factors including temperature, moisture, oxygen and light quality on the germination of sesame seeds and to investigate the change of major chemical constituents of seeds during germination. The results obtained are summarized as follows : 1. The average germination ratio was from 95.8% to 97.2% when it was tested every 5℃ intervals from 20℃ to 35℃ and no significant difference in germination ratio was found within 20℃ to 35℃. But the germination ratio dropped rapidly to 32.2% when seeds were germinated at 15℃ and the coefficient of variation become greater(77%) 2. The days required for germination ranged from 1.16 to 1.64 at the temperatures of 35℃ to 25℃ and they were 3.07 and 10.4 at the temperatures of 20℃ and 15℃, respectively. 3. Considering the germination ratio and days needed, 15℃ was assumed to be the minimum temperature for germination practically and this temperature is recommended for testing low temperature tolerance of seed germination of sesame cultivars. 4. The varieties shown the highest low temperature tolerance were Shirogoma and Turkey. The next varieties shown some degree of low temperature germination were Suweon #29, Naebok and IS 58. The varieties with 70 to 80% of germination ratio were Maepo, Suweon #14, Kimpo, Moondeok, and Haenam. Among the 90 varieties tested, the varieties with comparatively high degree of low temperature tolerance were about 10%, and 70% of the low temperature tolerant varieties were domestic varieties. 5. At 12℃ the Shirogoma was the only variety which showed over 50% of germination ratio, 71.4% of the varieties showed less than 20% of germination ratio. When the temperature was raised to 27℃ 18 days after placement at 12℃ all the varieties showed over 90% of germination ratio within 2days. 6. The amounts of water imbibition needed for seed germination were 0.48 to 0.62 times of the seed dry weight at 25℃ and were significantly different among sesame cultivars. About 63% of water required for germination was imbibed in 2 hours after placement of seeds under the germination condition. 7. Under saturated moisture condition the average germination ratio was 0.42%. In the soil of which water potential was -0.4bar 64.8% of the seeds germinated and the most adequate soil water potential for sesame seed germination was about -0.4 to -5.5 bar. 8. Six out of 10 varieties were not influenced by 5% of oxygen in air germination chamber, while varieties such as Yecheon, PI 158073, IS 103 and Euisangcheon showed 64 to 91% of germination under the 5% oxygen content. Under anaerobic condition, cotyledones were not emerged but only hypocotyl was emerged and elongated. The germination ratio of IS 103 decreased significantly under anaerobic condition. 9. When the seeds were dried for 24 hours after 12 hours imbibition of water, the seeds of Cheongsong did not lose their germination ability and 27.5% was germinated but Suweon #9 and Early Russian failed to germinate. However, the germination ratio of IS 103 decreased when the seed were dried 24 hours after 4 hours imbibition of water and the germination ability of IS 103 was maintained even though the seeds were dried for 24 hours after 24 hours imbibition of water. 10. During germination, sugar content of sesame seed increased rapidly and activity of α-amylase increased gradually while starch content decreased significantly. The rates of increase in sugar content and enzyme activity and decrease in starch content were significantly lower at 15℃ compared with those at 25℃. 11. During germination of sesame seeds, lipid content in the seeds dropped rapidly and the activity of alkaline lipase increased significantly at early stage of germination. The rate of decrease in lipid content and increase in emzyme activity was lower at 15℃ than at 25℃. 12. Four out of 6 varieties were not affected in germination by light wave length. But Suweon #8 was inhibited in germination by 600-650nm, and IS 103 by 600 to 650nm and 500 to 550nm of light wave length. Suweon #8 showed high germination ratio under 650 to 760nm and 500 to 560nm, and IS 103 under 400 to 470nm and complete darkness. 13. The germination ratios increased significantly in the seeds of which 1000 grain weight is heavier. When the seeds were place at soil 4cm deep, Cheongsong and Early Russian failed to emerge their cotyledones, but Suweon #9 and IS 103 showed 32.5 and 50% cotyledone emergence, respectively. The extracts from sesame plant and soil where the sesame was cultivated previously did not affect in the-germination of sesame seeds. 14. The covering by black or transparent polyethylene films increased germination ratio compared with uncovered seeds. The covering was effective in shortening the days needed for germination and in improving the early seeding growth, number of capsules per plant and grain yield. Difference was not so seizable between the two polyethylene films but the transparent film appeared somewhat more effective than the black one. 15. Simcheon, Cheongsong, Suweon #9, PI 158073 and IS 103 showed lower rate of water absorbtion by seed during germination and Suweon #8, Suweon #26, Orotall and Euisangcheon showed high increase in seed weight after water absorbtion by seed.

톨페스큐 品種 "Fawn"에서 選拔된 몇가지 多收性 遺傳子型의 多系交配 後代檢定에 關한 硏究

金忠洙 충남대학교 농업과학연구소 1976 農業技術硏究報告 Vol.3 No.2

This experiment was conducted to select genotypes that were high-yielding and adapted to the soil and weather conditions in Korea, from 13 Fawn derived progenies which represented in the previous study. Comparisons were made in various leaf and plant characteristics, and forage productivities, between the 13 polycross progenies of high-yielding Fawn and control varieties including Fawn. Alta, and Kentucky 31. The results obtained were summarized as follow; Genetic differences between the polycross progeny group and the control group were recognized in leaf fresh weight but those between two groups in leaf dry weight were not observed. Leaf area of all derived progenies and control varieties were appeared to have individual genetic differences and, moreover, the leaf area of the polycross progeny group was larger than that of the control. Differences between polycross progeny group and control group in leaf width were not significant. However, leaf length exhibited significant differences among all polycross progenies, and control varieties between two groups, and among polycross progenies but no differences were observed among control varieties. Tiller number, plant height, and plant width of the polycross progeny group were larger than those of the control varieties when measured before and after harvest. Panicle length among all polycross progenies and control varieties showed minor differences. However, significant differences were found between the polycross progeny group and control group, as well as among the polycross progenies and control varieties within each group in culm length. Above characteristics in the leaf fresh and dry weight, area and length, plant width and height, and tiller number showed positive correlations with the forage yields, respectively. Forage yields of the polycross progenies were higher than those of the control varieties and the variation of the yields among the genotypes were great.

말레이시아 농산물 수출입 동향

김충수,이석영 충남대학교 농업과학연구소 2006 농업과학연구 Vol.33 No.2

To strengthen the competitiveness of agricultural sector of the Korea, the direction of market trends on agriculture of the Malaysia was reviewed. The most dominating agricultural area in value is palm oil products, and forest products, sea products poultry products and rubber products is in order. The cultivated area of highest two top plants, oil palm and rubber, was about 4.4 million hectares in 2005, but it is decreasing year by year, Comparatively, rice field, pine apple and fruits tree cultivating area is increasing in tendency by the year. Among all the agricultural products, those items such as pork meat, poultry, egg were self-sufficient, rice, fruits, vegetables and sea products were about 70 to 80% self-sufficient, and beef meat, goat meat and milk were below 20% self-sufficient. Most of the grains, such as wheat, rice, barley, corn etc. and their processed food were imported. Also, temperate fruits such as apple, pear, and water cultivated as well as sprouting vegetables are imported. Ornamental products as cutting flowers and orchids are exported to mainly to the Singapore, but high quality temperate fruits and vegetables are imported from Australia. Oil palm exportation covers the balance of the other items imported and obtaining the foreign money as well in Malaysia.

토목분야 철도전문가의 직무만족에 관한 실증적 연구

김충수 철도전문대학교 2006 論文集 Vol.21 No.-

Recently, The business environment is very rapidly changed and complicated. Therefore, the companies are confront with the biggest difficulty. To overcome this difficulty, the management should be able to accomplish the human resources management and the efficient business management. KR(Korea Railroad) has a close association with national life as it carries out public works based on its public nature as well as purses the corporate spirit. For that reason, KR has a great spin-off on national economy and exerts a tremendous impact on the improvement of productivity around the industries and the international competitiveness at aspect of efficiency resulting from business rationalization. Railroad system can be described as organic. Railroad Experts take a great role in this system. According the psychology and the Organization Behavior, the decision maker's personality and employee' work satisfaction have influence on performance. The purpose of this study is to examine the Railroad Experts' Personality and Work satisfaction which influence on the efficient business management.

구분회계제도와 공기업의 효율화에 관한 연구

김충수(Chung Soo Kim) 한국철도학회 2016 한국철도학회 학술발표대회논문집 Vol.2016 No.10

최근 공기업의 부채는 그 규모와 속도가 급하게 증가하고 있으며, 이로 인하여 공기업뿐만 아니라 국가의 재무건전성에 부정적인 영향을 미쳐 종국엔 나라의 경제위기를 심화시킬 수 있을 것으로 예상된다. 이와 같이 공기업의 부채가 심각한 문제가 되고 있어 공기업의 부채를 절감하기 위한 노력으로 정부는 공기업을 포함한 공공기관의 부채를 관리하기 위하여 대책의 일환으로 부채를 발생 원인 별로 구분하여 부채의 발생원인을 파악하고 부채관리를 효과적으로 하고자 하는 구분회계제도를 도입하였다. 구분회계제도는 공기업의 부채관리뿐만 아니라 제품원가산정, 사업별 성과평가와 경영효율성 평가에 도움을 줄 것으로 생각한다. 이에 구분회계제도와 공기업인 한국철도공사의 구분회계제도에 대한 연구를 하였다. Recently, debts of public enterprises have been grown its proportion rapidly. This impedes not only public enterprises themselves but also financial soundness of its nation so that intensifies domestic economic crisis. To lessen its debts, government adopt The Separate Accounting System to manage debts of public enterprise by tracing each debt" cause. The Separate Accounting System will help not only debt management but also product costing, evaluation of divisional profit and efficiency of management. This study aims to analyze The Separate Accounting System and The Separate Accounting System of Korea Railroad Corporation.