재고를 고려한 손익분기점분석^(1))

김진욱,이춘식 국립7개대학공동논문집간행위원회 2003 공업기술연구 Vol.3 No.-

A break-even analysis is a method used widely for profit planning or decisions in most companies. It is useful tool in financial studies because it is simple and offers useful insights from a modest amount of data. Although it is widely used, it has some weaknesses. It is limited in particular to the analysis for a production system with an inventory. We suggest a new break-even procedure to analyze projects with an inventory as keeping the simplicity of a conventional break-even analysis. We will make efforts doing to include actual data for a cost or an income as much as possible rather than developing a mathematical model to improve unreality of a traditional break-even analysis. Also, we will use the spreadsheet software to solve problems.

고등어 진미 건제품의 가공에 관한 연구 : 1.일반성분 및 지방산 조성의 변화

김귀식,박춘규 여수대학교 산업기술지역개발연구소 2000 産業基術硏究所 論文集 Vol.9 No.-

Seasoned-dried mackerel product was prepared to extend the use of mackerel. In order to determine the processing condition, changes in proximate components and fatty acid composition were investigated. Mackerel meat, which was beheaded, gutted, washed, separated from bones and skin, and chopped with meat chopper, was mixed with 6.0 sorbitol, 1.6% table salt, 2.0% sugar, 0.2% monosodium glutamate, 3.0% soybean protein, 0.5% onion extract, 0.2% garlic powder, respectively. The three kinds of seasoned-dried mackerel meat were prepared by mixing the mackerel meat and fish meat paste in a ratio of 80:20(product A, w/w), 60:40(product B, w/w), and 40:60(product C, w/w), respectively, pan freezing(-40°C), sun-drying and hot-air drying, and roasting(120~130°C), followed by vacuum packing in polyester film. Moisture contents of sun-drying and hot-air drying product were in the range of 13.2~15.6%, 12.8~15.4% and for crude protein, 50.8~63.0%, 54.3~62.4%, respectively. Change of moisture content in product is not observed during storage of 60 days at 5°C. The most abundant fatty acids in products were polyenes, followed by saturates, monoenes. Saturated fatty acids of sun-drying product were increased but polyunsaturated fatty acids were decreased during storage of 60 days. On the other hand, hot-air drying product exhibited the reverse tendency compared with sun-drying product. The major fatty acids of product were 16:0, 22:6n-3, 20:5n-3, 18:ln-9 and 18:0. From the results, no deterioration in product quality was detected during storage of 60days at 5°C.

시장품질 정보에 기초한 신뢰성 분석시스템 개발

이춘식,문덕희,김상부 國立 昌原大學校 産業技術硏究所 1997 産技硏論文集 Vol.11 No.-

The need for reliable products and reliability analysis became apparent in the age of customer satisfaction. To make products most attractive, first of all, customer complaints on current products must be gathered and analyzed. This article shows a case on the development of a reliability analysis system based on field data. Field data takes the form of A/S(After Sales Support) data. The characteristics of A/S data prohibit the exact calculation of theoretical reliability because of unavailibility of operating time and conditions. In this system, a reliability model was built by use of calendar time and field operating conditions. To estimate the reliability of products or failure modes, empirical distributions based on actuarial method were used and true distribution function could be fitted. And many functions needed to analyse reliability related data were implemented on personal computer via system analysis and design techniques.

혀에 작용하는 capsaicin에 관한 감각 정보의 특성

이배환,김기석,김기영,진춘조,나흥식,홍승길 한국심리학회 1999 한국심리학회지 생물 및 생리 Vol.3 No.1

본 연구는 혀에 작용하는 capsaicin이 유발하는 감각 정보의 특성을 알아보기 위해 수행되었다. α-chloralose로 마취한 고양이에게 기계적 자극, 미각자극, capsaicin을 혀에 도포하고, 동통 유발 물질과 capsaicin을 혀의 동맥에 주입하면서 고삭신경과 설신경에서 신경의 활동을 기록하였다. 고삭신경에서 혀에 도포한 capsaicin에 대한 반응은 미각 자극 및 혀의 동맥에 주입한 동통 유발 물질에 대한 반응과 상관이 있었다. 혀의 혈관에 주입한 capsaicin에 대한 고삭신경의 반응은 혀에 도포한 capsaicin 및 혀의 혈관에 주입한 동통 유발 물질에 대한 반응과 상관이 있었다. 설신경에서 혀에 도포한 capsaicin에 대한 반응은 동맥에 주입한 동통 유발 물질에 대한 반응과 상관이 있었다. 혀의 혈관에 주입한 capsaicin에 대한 설신경의 반응은 혀에 도포한 capsaicin 및 혀의 혈관에 주입한 동통 유발 물질에 대한 반응과 상관이 있었다. 이러한 결과는 capsaicin이 혀에 작용할 때 동통뿐만 아니라 미각에 관한 정보도 유발한다는 것을 시사한다. 이때 미각에 관한 정보는 고삭신경을 통해 중추로 전달되며, 동통에 관한 정보는 설신경을 통해 전달되지만, 동통에 관한 정보가 고삭신경을 통해 전달될 가능성도 배제하지 못한다. The present study was performed to investigate the characteristics of sensory information produced by capsaicin in the tongue. Activities of the chorda tympani(CN) and lingual nerves(LN) were recorded while taste stimuli and capsaicin were being applied topically, and capsaicin and algesics were being injected intra-arterially to the tongue of cats anesthetized with α-chloralose. Responses of the CN fibers to topically applied capsaicin were correlated with those to taste stimuli and intre-arterially injected algesics. Responses of the CN fibers to intra-arterially applied capsaicin were correlated with those to topically applied capsaicin and intra-arterially injected algesics. Responses of the LN fibers to topically applied capsaicin were correlated with those to intra-arterially injected algesics. Responses of the LN fibers to intra-arterially aplied capsaicin were correlated with those to topically applied capsaicin and intra-arterially injected algesics. These results suggest that capsaicin provoke taste as well as pain sensation in the tongue. Taste information produced by capsaicin is conveyed to the brain via the CN and pain information via the LN. However, the possibility that pain information may be conveyed via the CN can not be excluded.

고랭지 성토지 감자-호맥 작부체계하의 토양개량이 감자 생육에 미치는 영향

허봉구,김춘식,김주현 한국국제농업개발학회 2003 韓國國際農業開發學會誌 Vol.15 No.4

고랭지에서 척박한 모재토를 성토한 포장에서 감자를 재배한 후 후작으로 호밀을 재배하는 작부체계 하에서 대조구, 화학성개량구, 제오라이트구 등 3개 처리를 두고 감자 파종 전 성장하고 있는 호밀을 경운, 매몰하여 감자를 1999년부터 2년간 재배하면서 몇 가지 토양개량 처리한 것을 조사 분석한 결과는 다음과 같다. 1. 성토재료용 모재토는 양질사토로서 유기물과 인산함량 등 이화학성이 매우 낮은 척박토이었다. 2. 감자의 지상부 생육은 대조구에 비하여 제오라이트구와 화학성개량구가 좋았으며 감자수량도 2.1~4.5% 증수되었다. 3. 감자 수확 후 토양이화학성은 시험 전에 비해 점차 증가하였으며 호맥재배로 토양 유기물과 인산함량 증가가 컸다. 4. 호맥은 감자 파종 1주일 전에 경운, 매몰하였으며 그 효과는 토양 중 유기물함량 0.5~3.5g/㎏정도 지력 증진효과가 있었다. This study was conducted to investigate the changes of crop growth and soil properties under potato-rye cropping system in highland mounding-soil. Experimental plots were designed with control, chemical improvement and zeolite+chemical improvement plot during 1999 to 2000year. Mounding-soil were low in the contents of soil chemical properties that organic matter contents etc., and that soil texture was loamy sand soil. The growth and yield of potato in the chemical improvement and zeolite plots were higher than that of control plot by 2.1~4.5%. After harvesting, the contents of soil chemical properties increased than those of experiment before. Increasing ratios of soil organic matter and phosphate contents were higher than other soil properties by rye cultivation. Rye residues were buried and tilled before potato planting at 1 week. Rye residues burying deep under the ground increased by 0.5~3.5g/㎏ to soil organic matter contents.

대량의 각혈로 사망한 장티푸스 1예

한상우,유진홍,권순석,김성훈,박지찬,홍은정,최경성,박용완,장준희,안지원,박유경,강지영,박상미,신완식 대한감염학회 2004 감염과 화학요법 Vol.36 No.5

We experienced a 25 year-old male patient with typhoid fever complicated with massive hemoptysis. Pulmonary complication in typhoid fever is very rare and to our knowledge, there has been no report of hemoptysis as a main cause of death with this disease. We herein report a rare case of typhoid fever.

동종골수이식 후 혈당 및 혈중 지질농도의 변화양상 및 관련인자

이원영,강무일,오은숙,오기원,손현식,윤건호,차봉연,이광우,손호영,강성구,신완식,민우성,김춘주 대한당뇨병학회 2002 Diabetes and Metabolism Journal Vol.24 No.6

연구배경:골수이식은 비교적 젊은 연령의 환자들을 대상으로 하며 면역억제제의 사용기간이 비교적 짧으므로, 주로 고령의 만성 질환 환자에서 시행되는 고형장기이식에서와는 달리 당대사 및 지단백 대사에 있어서 많은 차이점이 있을 것으로 추측된다. 저자들은 전향적 연구를 통하여 골수이식 후 시기별로 혈당 및 혈중지단백 변화 양상을 알아보고 이와 관련된 임상인자들을 규명하고자 하였다. 방법:1998년 10월부터 1999년 8월까지 가톨릭대학교 성모병원에서 동종골수이식을 시행한 환자들 중 43명을 대상으로 이식 전 및 이식 후 1, 2, 3, 4주와 3개월, 6개월에 공복 혈당, 혈중 총 콜레스테롤, 중성지방, 고밀도지단백을 측정하여 골수이식 후 시기별 변화를 관찰하고 여러 임상인자들에 따른 차이를 알아보았다. 결과:1. 공복혈당은 골수이식 수 첫4주 동안 상승하였고 이후 감소하였으나 이식 6개월 시점의 평균 공복혈당은 이식 전보다 유의하게 높게 관찰되었다. 혈중 총 콜레스테롤은 이식 후 1주에 최고치를 형성하였고 이후 기저수준으로 회복되었다가 이식 수 3,6개월에 다시 증가하여 기저치에 비해 유의하게 높았다. 혈중 중성지방은 이식 후 1개월까지 유의하게 증가하였고 이후 감소하여, 3,6개월에는 기저치와 유의한 차이가 관찰되지 않았다. 혈중 고밀도지단백은 이식 후 2,3주에 이식 전보다 유의하게 감소하였고 이후 이식 전 수준으로 회복되었다. 혈중 저밀도지단백은 총 콜레스테롤의 변화와 매우 유사하였다. 2. 골수이식 후 6개월 시점에서 공복 혈당이 126㎎/dL이상인 환자는 7명(16%)이었다. 이들 환자들과 공복혈당 126㎎/dL 미만의 환자 36명을 비교한 결과, 공복혈당이 126㎎/dL 이상인 환자군에서 스테로이드 평균 투여량이 많았고 고밀도지단백이 유의하게 낮았다. 3. 이식편대숙주질환이 발생한 환자는 그렇지 않은 환자보다 이식 후 1, 2, 3주 및 6개월의 총 콜레스테롤이 더 낮았고, 3개월의 공복혈당이 더 높았다. 혈연골수이식 환자군은 비혈연골수이식 환자에 비해 투여된 스테로이드 용량이 더 적음에도 불구하고 이식 후 1, 2, 3주 및 6개월의 총 콜레스테롤 수치가 더 높았다. 스테로이드 고용량 투여군(하루 평균 7.5㎎기준)은 저용량군보다 이식 후 3개월 시점의 공복혈당이 더 높았으나 나머지 시점의 혈당, 혈중 지질농도에 있어서는 유의한 차이가 관찰되지 않았다. 결론:골수이식 후 초기시기에 주로 당 대사 및 지질대사이상이 관찰되며 이는 면역억제제 투여와 관련이 있음을 알 수 있었다. 면역억제제가 고용량 투여되는 합병증 발생 시 이들 대사이상에 관심을 기울여 대처해야 할 것이다. Background: In bone marrow transplantation(BMT), recipients are usually younger and immunosuppressants are open used in shorter period than in solid organ transplantation. Therefore, there might be a difference in glucose and lipid metabolism between BMT and solid organ transplantation. However, the serial changes of metabolic parameters following BMT have not been studied. Therefore, the aim of this study is to investigate the serial changes of blood glucose, lipids and the putative factors that are related with these changes after BMT. Methods: We have prospectively investigated 43 patients who underwent allogeneic BMT. Fasting plasma glucose(FPG), total cholesterol, triglyceride and high-density lipoprotein(HDL) were measured before BMT, and at 1, 2, 3, 4, 12 weeks and 6 months after BMT. The serial changes of these metabolic parameters according to clinical factors including type of BMT, mean daily steroid dosage, and occurrence of graft versus host disease (GVHD) were examined. Results: 1. Mean FPG level increased during 4 weeks after BMT and remained above basal value at post-transplant 6 months. Total Cholesterol level was increased during initial 4 weeks after BMT and was above basal value at post-BMT of 3 and 6 months. Triglyceride level was progressively increased during initial 4 weeks after BMT, but returned to basal value there after. HDL-cholesterol level was significantly decreased during initial 4 weeks after BMT, but returned to basal value there after. 2. Patients with FPG above 126 mg/dL and the other patients, the former received larger amounts of daily steroid and had lower HDL-cholesterol level. 3. The changes of metabolic parameters were different according to type of BMT, steroid dose, and occurrence of GVHD. Conclusion: Although there was increase of FPG, TC, TG and decrease of HDL-C during initial 4 weeks after BMT, these metabolic changes recovered slowly thereafter. Immunosuppressants are thought to be associated with these changes. Further observation will be needed for the long-term effect of BMT on metabolic changes(J Kor Diabetes Asso 24:689~698, 2000).

골수이식 후 골밀도 및 골대사의 변화 : 2년 추적관찰 2-Year Prospective Study

이원영,강무일,오은숙,오기원,한제호,손현식,윤건호,차봉연,이광우,손호영,강성구,신완식,민우성,김춘추 대한내분비학회 2000 Endocrinology and metabolism Vol.15 No.4·5

Growth, Carbon and Nitrogen Status of Container Grown Black Pine(Pinus thunbergii) Seedlings at Various Levels of Foliar Fertilization

Choon Sig Kim,Jae Yeob Jeong,Tae Shik Moon,Jun Ho Park,Jong Taek Lim,Jong Ik Kim,Gwan Hyo Goo 韓國林學會 2009 한국산림과학회지 Vol.98 No.5

Root Yields and Saikosaponin Contents Depending on Planting Time and Cultivated Regions of Bupleurum falcatum L.

Kim, Choon-Shik,Seong, Jae-Duck,Park, Chung-Heon,Park, Chun-Gun,Cho, Yang-Hee,Kwak, Jun-Soo The Korean Society of Medicinal Crop Science 2005 韓國藥用作物學會誌 Vol.13 No.5

In order to decide the optimum planting time for Bupleurum falcatum L. which is grown widely in Korea, some experiments were carried out in different regions such as mid-north area (Gangwon-do, Gyeonggi-do and Chungcheongnamdo), mid-south area (Jeollanam-do, Jeollabuk-do, Gyeongsangnam-do and Gyeongsangbuk-do). The mid-south area had the highest total saikosaponin contents of 1.001, which is the medicinal ingredients of Bupleurum falcatum L., in accordance with the different Bupleurum falcatum L. regions. Also this area has the highest extract contents of 24.3%. Average dry root yields in mid-north area (Gangwon-do) were $450{\sim}460$ kg/ha at planting time of March 20th to March 30th, 500 kg/ha at the time of March 30th to April 10th, and $470{\sim}480$ kg/ha at the time of March 10th to March 20th in Chungcheongnam-do. The optimum planting time in the mid-south area (Jeollabuk-do) was March 10th to March 30th with the average dry root yield of $490{\sim}550$ kg/ha. Average dry root yield in Euiseong, Gyeongsangbuk-do area was 470 kg/ha, and the optimum planting time was April 10th, which suggested that the yield increased as the planting time was delayed. At Jeju-do, the volcanic soil of farsouthern area, average dry root yield was 510 kg/ha at the time of March 10th, but the yield from non-volcanic soil was lower than from volcanic soil, which had a dry root yield of 470 kg/ha.