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김충수 한국철도대학 2007 한국철도대학논문집 Vol.22 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. Korea railroad industry 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, Korea railroad industry 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 Employs 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 Employs' Work satisfaction which influence on the efficient business management.
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김충수(Chung-Soo Kim),김동환(Dong Hwan Kim),박만진(Man-Jin Park),장동영(Dong-Young Jang),안성훈(Sung-Hoon Ahn),한동철(Dong-Chul Han) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
A Nano-tip as a cold field emitter for inducing a field emission current has manufactured in many ways. In the paper, the electrochemical etching method is used. Thus, in order to optimize the final shape as the field emitter, the reliable fabrication system for electrochemical etching was constructed. In addition, the effective parameters such as applied voltage, submerged length, meniscus height, electrolyte concentration and environmental condition(vibration, humidity, cut-off time) have investigated in detail. By controlling the parameters, reliable tungsten tip for field emitter was fabricated. And the fabricated tungsten tip was evaluated optically. Finally, the very sharp apex of the tungsten tip was observed with scanning electron microscope.
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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.
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삭과의 착생부위(着生部位)가 참깨종자(種子)의 발아(發芽) 및 초기생육(初期生育)에 미치는 영향(影響)
김충수,Kim, Choong Soo 충남대학교 농업과학연구소 1982 Korean Journal of Agricultural Science Vol.9 No.1
참깨의 적정입모확보(適正立毛確保)를 위한 기초자료(基礎資料)를 얻고 저 청송등(等) 6개품종(個品種)에서 삭과착생부위별로 채취(採取)한 종자(種子)를 공용(供用)하여 발아(發芽) 및 초기생육(初期生育)을 조사(調査)하였던 바 그 결과(結果)를 요약(要約)하면 다음과 같다. 1. 파종기(播種期)를 지연(遲延)시킴에 따라 각품종(各品種)의 개화(開花)까지 일수(日數)는 현저(顯著)한 감소(減少)를 보였는데 파종기지연(播種期遲延)에 따르는 개화(開花)까지 일수(日數)의 감소정도(減少程度)는 품종간(品種間)에 현저(顯著)한 차이(差異)를 나타 내었다. 2. petri dish나 pot에서 공(共)히 IS103을 제외(除外)한 전공시품종(全供試品種)에서 하위절(下位節)에서 채취(採取)한 종자(種子)의 발아율(發芽率)이 하위절채취종자(下位節採取種子)의 발아율(發芽率) 보다 높았다. 3. IS103은 하위절(下位節)에서 채취(採取)한 종자(種子)의 발아율(發芽率)은 petri dish에서는 20%, pot에서는 75%의 발아율(發芽率)을 보였고 상위절채취종자(上位節採取種子)에서는 petri dish에서는 17.0% pot에서는 72.5%의 낮은 발아율(發芽率)을 보였다. 4. 발아세(發芽勢)에 있어서도 발아율(發芽率)과 같은 경향(傾向)으로 하위절채취종자(下位節採取種子)가 상위절채취종자(上位節採取種子)의 발아세(發芽勢)보다 높았으며, petri dish에서의 발아세(發芽勢)보다 pot에서의 발아세(發芽勢)가 현저(顯著)히 낮았다. 5. 초장(草長), 근장(根長), 엽장(葉長) 및 생체중등(生體重等)은 전공시품종(全供試品種)에서 하위절채취종자(下位節採取種子)가 상위절채취종자(上位節採取種子)보다 컸으나 종자입중(種子粒重)에 따르는 발아율(發芽率) 및 초기생육(初期生育)은 동일품종내(同一品種內)에서는 그 차이(差異)가 인정(認定)되나 품종간(品種間)에는 인정(認定)되지 않았다. To obtain the information on the germination and initial growth of the sesame, the seed of 6 sesame cultivars obtained from upper and lower position of plants were seeded and the results on the germination and initial growth were summarized as follows; 1. When the seeding time was delayed, the days to flower of all sesame cultivars were significantly decreased. And the shortening rate of days to flower by delaying seeding time showed significant differences among the sesame cultivars. 2. At all cultivars excluding IS 103, the germination percentage of the seeds obtained from lower position of sesame plant was significantly higher than those from upper position. 3. Germination percentage of IS 103 seeds from lower position of sesame plant was 20.0% at petri dish experiment and 75.0% at pot experiment and those from upper position of the stem was 17.0% at petri dish experiment and 72.5% at pot experiment, respectively. 4. The germination speed of all cultivars showed a same tendency as germination percentage, but the germination speed of cultivars at pot experiment was higher than those at petri dish experiment. 5. The sesame seedlings from lower position seed were increased in stem length, root length, leaf length and fresh weight than those from upper position seed. The germination percentage and the initial growth showed significant differences by the seed weight in same cultivar, however did not show any varietal differences.
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작물의 내염성 기작연구 I. 염분농도에 따른 보리, 호밀, 이탈리안 라이그래스 종자의 발아생리반응
김충수,조진웅,이석영 한국작물학회 1993 Korean journal of crop science Vol.38 No.4
호밀, 보리, 이탈리안라이그래스에 대하여 NaCl로 염분농도를 높여가며 실험한 결과를 요약하면 다음과 같다. 1. 종자의 발아율은 호밀이 종자자체의 활력에 의해 염분을 처리하지 않은 구와 0.5%이하의 염분조건에서 높은 발아율과 발아세를 보였던 반면 고농도의 염분조건에서는 발아율이 떨어졌으나 보리의 경우는 0.8%의 염분농도까지는 발아율이 80%이상을 보였고, 이탈리안라이그래스의 경우 염분농도의 증가에 따른 발아율 감소는 보리나 호밀에 비하여 심하지 않았다. 2. 수분 흡수율은 보리의 경우 호밀보다 낮았음에도 불구하고 발아율은 증가했으며 또한 종자의 흡수율에 있어서 염분농도가 높을 경우 흡수수분의 감소정도가 흐밀보다 보리에서 심하지 않았다. 3. 탄수화물은 보리의 경우 염분의 함량이 높아짐에 따라 전분은 감소의 정도가 약했고 환원당은 염분농도 흡수시간의 지속에 따라 별다른 변화의 양상이 없었다. 호밀의 경우는 0.3%의 염분농도까지는 환원당의 함량이 증가하는 경향이었으며 흡수 20시간 이후에는 환원당의 함량이 급증하였다. 4. 염분의 흡수정도는 염분농도가 높을수록 시간이 경과함에 따라 흡수의 정도가 증가하는 경향이었고 $\beta-amylase 활력은 염분을 처리하지 않은구와 0.6%의 염분농도에서 높게 나타났다. This experiment was conducted to elucidate the salt tolerance mechanism of crop plants. Plants used in this experiment were rye, barley, Italian ryegrass. Seeds were treated at saline condition and the saline conditions were controlled by NaCl. The results were summerized as follows. In rye, germination ratio and speed were above 90% and 80% at NaCl concentrations below 0.5% but germination ratio was seriously decreased at NaCl concentration above 0.6%. In barley germination ratio was not less than 80% at NaCl concentration below 0.8%. In italian rye grass germination ratio was decreased gradually by increasing NaCl concentration but germination speed was seriously decreased at NaCl concentration above 0.6% as not more than 7.5%. Water absorption rate was low in barley than rye and it was decreased by increasing NaCl concentration and duration of absorption. In barley, carbohydrate content was decreased slightly in response to increased NaCl concentration and content of reducing sugar was independent of NaCl concentration. In rye, reducing sugar content was increased until 0.3% of NaCl and increased seriously after 20 hours. $\beta-Amylase activity was high at control and 0.6% lot of NaCl, but it was not general tendency.
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김충수 철도전문대학교 2003 論文集 Vol.18 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 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 and employee' work satisfaction have influence on performance. The purpose of this study is to examine the engine drivers' Attitude and Work satisfaction which influence on the efficient business management.
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해외 도시철도 O&M 사업의 민간참여 방향제시 및 활성화 방안
김충수(Chung Soo Kim),박민규(Min kyu Park),위정수(Jung Soo Wee),김영섭(YoungSeop Kim),이한성(Han Seong Lee) 한국철도학회 2012 한국철도학회 학술발표대회논문집 Vol.2012 No.10
국내철도 O&M시장의 성장 및 발전의 일취월장에 따라, 이를 통한 축적된 노하우와 인적자원을 바탕으로 해외철도시장 진출에 지속적인 도전을 하고 있음에도 불구하고 해외철도사업 수주는 현재 전무한 실정이다. 당면과제인 해외철도시장의 활발한 진출을 위하여는 전제조건으로 Value chain, 즉 투자유치, 설계, 시공, 시운전, O&M 등에 대한 Total Package System이 구축되어야 하며, O&M분야에 대한 경쟁력 확보를 위한 체계적 시스템이 반드시 마련되어야 한다. 따라서 본 연구는 국내 도시철도 O&M사업 분석을 통해 해외 O&M 사업의 기본방향을 제시하고, O&M사업의 접근방법으로 핵심가치 및 운영사업 Mechanism, 운영조직구성 및 수행형태, 운영업무별 특성 분석 등을 통해 해외 O&M 사업의 활성화 방안을 제시하여 해외철도 사업 진출의 가능성을 높일 수 있는 기반을 조성하고자 한다. Our domestic railroads O&M market has been dramatically improved and developed. Using our accumulated knowledge and human capital from the experience, we have been trying to break into international market. Even with ongoing effort to accomplish this mission, so far, the result has been close to failed to attract international participants. In order to attract and compete with international market participants, Total Package System for the Value Chain (Investment, design, initial operation, and O&M) must to be established. As a solution to the challenges we faced, this research will analyze the domestic O&M business to set the initial directional guidance to increase the probability to success in international market.
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