철도종사원의 성격유형과 직무만족에 관한 실증적 연구 II

김충수,안준용,Kim, Chung-Soo,An, Joon-Yong 한국철도학회 2007 한국철도학회논문집 Vol.10 No.2

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' Personality and Work satisfaction which influence on the efficient business management.

집속이온빔을 이용한 3차원 마이크로스케일 몰드 제작 및 폴리머 복제

김충수,안성훈,장동영 한국공작기계학회 2008 한국공작기계학회 추계학술대회논문집 Vol.2008 No.-

Focused ion beam (FIB) sputtering was used to fabricate a low microscale mold having a circular curved structure, as well as variable sizes. Experimentally, in this work, a continuous slicing method, which was modified from two-dimensional slice-by-slice approach developed by Fu, was tested with the aim of excluding the material redeposition phenomena by repeating the discrete slicing process with a combination of spiral scans as part of an overall vector scan. Three types of fabrication strategies, including scan strategy, ion beam condition, and processing parameter, were defined and the mould was fabricated as a function of ion dose for specific dwell times. Through replication technique from fabricated moulds, polymeric microstructures were replicated from polydimethy-lsiloxane (PDMS) and polyurethane acrylate (PUA) and compared with the mould dimension. Furthermore, micro-lens arrays was also fabricated and replicated.

철도수송원가계산제도에 관한 연구

김충수 동국대학교 경제경영연구원 1999 會計學硏究 Vol.23 No.3

한국철도회계제도에 관한 연구

김충수 철도전문대학교 2002 論文集 Vol.17 No.-

Accounting is a process that is designed to provided information which is useful in decision making. Public enterprise 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, the public enterprise 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. The public enterprise accounting dealing with these public enterprise is the accounting system that plays a role in measuring the performance of business by recording and filing the transactions. Korean National Railroad enterprise is public enterprise. This paper examines the Korean Railroad Accounting System.

기내배양에 의한 감자(Solanum tuberosum L.)의 대량번식(大量繁殖)에 관한 연구(硏究) I. 몇가지 생장조절물질(生長調節物質)이 생장점(生長點)으로부터의 Callus 및 기관분화(器官分化)에 미치는 영향(影響)

김충수,조재성,최창열,Kim, Choong Soo,Jo, Jae Seong,Choi, Chang Yeol 충남대학교 농업과학연구소 1980 Korean Journal of Agricultural Science Vol.7 No.2

본(本) 실험(實驗)은 감자의 생장점배양시(生長點培養時) 기본배지(基本培地)에 첨가(添加)되는 2.4-D, NAA 및 Benzyladenine이 감자의 생장점(生長點)으로 부터의 기관(器官)의 분화(分化) 및 생장(生長)과 Callus의 유기(誘起)에 미치는 영향(影響)을 구명(究明)하여 기내배양(器內培養)을 이용(利用)한 감자 대량번식방안수립(大量繁殖方案樹立)을 위(爲)한 기초정보(基礎情報)를 얻고져 수행(遂行)하였던 바 그 결과(結果)를 요약(要約)하면 다음과 같다. 1. BA의 농도(濃度)가 증가(增加)됨에 따라 경(莖)의 신장(伸長)은 현저(顯著)히 촉진(促進)되었으나 BA를 첨가(添加)한 배지상(培地上)에서는 근(根) 및 Callus는 전혀 유기(誘起)되지 않았다. 2. 0.5mg/l 혹(或)은 그 이상(以上)의 NAA를 첨가(添加)한 배지상(培地上)에서는 경(莖)이 전혀 분화(分化)되지 않았고 공시개체전부(供試個體全部)에서 Callus만 유기(誘起)되었으며 Callus의 생장(生長)은 NAA의 농도(濃度)가 증가(增加)될 수록 현저(顯著)히 촉진(促進)되었다. 3. NAA를 0.1mg/l 이상(以上) 첨가(添加)한 배지상(培地上)에서는 약(約) 50% 이상(以上)의 개체(個體)에서 근(根)이 발생(發生)되었으나 2.4-D를 첨가(添加)한 배지상(培地上)에서는 전혀 근(根)의 발생(發生)이 없었다. 4. 1.0mg/l 이상(以上)의 2.4-D를 첨가(添加)한 배지상(培地上)에서는 경(莖)의 분화(分化)가 전혀 없었으며 2.4-D 0.1mg/l까지는 2.4-D의 농도(濃度)를 높일수록 경(莖)의 신장(伸長)은 촉진(促進)되었다. 5. Callus의 유기(誘起) 및 생장(生長)에는 2.4-D보다 NAA가 현저(顯著)히 효과적(效果的)이었고 2.0mg/l 첨가(添加)한 MS배지(培地)가 Callus의 유기(誘起) 및 생장(生長)에는 가장 적합(適合)하였다. 6. 식물체(植物體)의 재분화(再分化)에는 MS배지(培地)에 BA 2.0 및 NAA 0.1mg/l 혹(或)은 BA 1.0 및 2.4-D 0.1mg/l를 첨가(添加)한 배지(培地)가 가장 효과적(效果的)이었다. These experiments were carried out to define the effects of 2.4-D, NAA and Benzyladenine on the differentiation and growth of the organs and the induction of callus from the potato meristem. The results were summarized as follows ; 1. The differentiation and growth of the shoots from the potato meristem was promoted in increased concentration of Benzyladenine but the callus was not induced on the M.S. medium containing Benzyladenine. 2. On the M.S. medium containing NAA 0.5 mg/l or higher concentration of NAA, the shoots were not initiated but the callus were induced from potato meristem. The growth of callus was promoted in increased concentration of NAA. 3. The roots were initiated from 50% of potato meristems planted on the M.S. medium containing more than 0.1 mg/l of NAA but the roots were pot initiated on the medium containing 2.4-D. 4. The shoot growth was significantly increased by increasing of 2.4-D concentration up to 0.1 mg/l, but the shoots were not initiated on the medium containing 2.4-D more than 1.0 mg/l. 5. For the induction and growth of the callus from potato meristem, NAA was more effective than 2.4-D and the most effective medium was M.S. medium supplemented with 2.0 mg/l of NAA. 6. The M.S. mediums supplemented with BA 2.0 mg/l and NAA 0.1 mg/l or BA 1.0 mg/l and 2.4-D 0.1 mg/l showed good results for entire plant regeneration from potato meristem.

1930년대 모더니즘 시에 나타난 경성의 의미 연구

김충수 강원대학교 국어교육과 2017 語文學報 Vol.37 No.-

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.

제국주의측면에서 본 미국자본수출의 특성

김충수 단국대학교 무역학과 1993 무역논집 Vol.- No.7

베트남 수자원 정보화 기반 수자원관리 의사결정지원 시스템 구축 KOICA ODA 사업 소개

김충수,김초롱,Kim, Chung-Su,Kim, Cho-Rong 한국수자원학회 2022 물과 미래(한국수자원학회지) Vol.55 No.5

시험 스트레스가 의대생의 면역기능에 미치는 영향

김충수,신석철,강민희 충남대학교 의과대학 지역사회의학연구소 1995 충남의대잡지 Vol.22 No.2

To evaluate the effect of stress on immunological functions, lymphocyte subpopulation measure by flow cytometry technique, lymphocyte stimulation test using Con A and PHA, and the NK cell activity measure were performed on 12 medical students during test and vacation periods. The results were as follows : 1. The scores of GARS, SAS and SDS were significantly increased during test compared to the vacation periods (P<0.001). 2. There were no differences in the absolute numbers and percentages of the total lymphocyte, B-cell, T-cell, T-cell subset and NK cell between the test and vacation periods. 3. NK cell activities were significantly decreased during the test periods compared to the vacation periods (P<0.001 or P<0.01). 4. Lymphocyte proliferation response by PHA was significantly decreased during test periods compared to the vacation periods (P<0.05). 5. There were no significant correlations between the amount of increase in stress and the amount of decrease in NK cell activity or lymphocyte proliferation response.