[Interview] 한국디자인진흥원 김철호 원장_디자인 경쟁력을 위한 스타디자이너와 일류디자인회사의 육성이 필요

김철호 한국색채학회 2003 COLOR news Vol.- No.1

돼지감자(Helianthus tuberosus L .) 로부터의 알콜 생산을 위한 균주 선발

김철호,유연우,김수일 한국농화학회 1983 Applied Biological Chemistry (Appl Biol Chem) Vol.26 No.2

To investigate the possibility of ethanol production from Jerusalem artichoke tubers (Helianthus tuberosus L.), various yeast strains were evaluated for their potential in metabolizing carbohydrate from Jerusalem artichoke tubers to ethanol. Among them, Kluyveromyces fragilis CBS 1555 showed the highest inulase activity and ethanol fermentability. On the batch kinetic: analysis, K. fragilis also showed the highest in parameters for ethanol production and substrate utilization, although lower than Saccharomyces cerevisiae Y-10 in cell mass yield and ethanol production yield.

소 腎臟 Adenosine Deaminase Complexing Protein의 精製와 生物學的 性狀에 關한 硏究

김철호 인제대학교 1992 仁濟醫學 Vol.13 No.4

소의 신장 adenosine deaminase complexing protein을 순수 정제하였으며, 생물학적 성상에 관한 연구를 시도하였다. 그 결과 adenosine deaminase complexing protein은 adenosine의 농도에 따라 adenosine deaminase의 활성을 조절하는 역할을 할 것이라 사료된다. ADCP (adenosine deaminase complexing protein) was prepared and purified from bovine kidney. Its purification was done by the treatment of Triton X-100, followed by precipitation with sodium sulfate, ADA-Sepharose affinity chromatography and finally Sephadex G-100 gel filteration. The purified ADCP thus obtained is supposed to exist as a homodimer of molecular weight about 200 KD on SDS-polyacrylamide gel electrophoresis. The presence of ADCP caused a slight decrease in Km and Vmax value for adenosine, but the ADA (adenosine deaminase) binding with ADCP did not modify its behavior of optimal pH and temperature. No effects of varying metal ions, purine metabolites and its derivatives were observed on the activities of ADA in the presence of ADCP, except 6-chloropurine riboside inducing 27% decrease in activity and Fe2+ enhancing 29% of its activity. The binding of ADA with ADCP was optical at 1.7 : 1 molar ratio of ADA/ADCP with no effect of the addition of varying metal ions or purine metabolites except the guanosine and 2,6-diaminopurine, both causing aggravating complex with their concentration. The effect of ADCP on catalytic activity of ADA was studied. The slight elevation (up to 13%) of ADA catalytic activity was observed at the adenosine contents of 0.1∼0.2 mM and ADCP/ADA molar ratio of 1 : 1∼1 : 10, while the decrease in its activity was shown at the same range of adenosine contents, but ADCP/ADA molar ratio of 2 : 1∼10 : 1. The lower activities of ABA were also observed at lesser contents (0.01∼0.05 mM) of adenosine and the same molar ratio of ADCP/ADA. Thus it was shown that ADCP interacted with ADA. And the ADA activity tends to decrease at the physiological concentration of adenosine (about 0.01 mM). These results show that ADCP might play a role in the regulation of ADA activity.

利益變動原因分析의 모델

金喆鎬 弘益大學校 1982 弘大論叢 Vol.14 No.1

This paper provides some tools to analyze variation factors is a firm's normal profit. For the purpose of developing these, this abstract begins with the analysis of variation causes in sales, cost of goods sold, operating expenses and the other revenues. and expenses, and finally concentrates on the correlation analysis of cost-volume-profit. 1. Analysis of variation in sales Increase of market price & decrease of quantity: ΔS_a=(P'-P)Q'+P(Q'-Q)={P(1+r₁)-P}Q'+P{Q(1-r₂)-Q} Decrease of market price & increase of quantity: ΔS_b=(P'-P)Q+P'(Q'-Q)={P(1-r₁)-P}Q+P'{Q(1+r₂)-Q} Increase (or Decrease) of market price & quantity: ΔS_c={(P'-P)Q+½(P'-P)(Q'-Q)}+{P(Q'-Q)+½(P'-P)(Q'-Q)}={[P(l±r₂)-P)Q+½P(1±r₁)-P)][Q(l±r₂)-Q]}+{P[Q(1±r₂)-Q)+½P(1±r₁)-P][Q(l±r₂)-Q]} (S:sales, P:previous market price, P':current market price Q:previous. quantity, Q':current quantity, r₁:rate of variation in price, r₂:rate of variation in quantity) 2. Analysis of variation in CGS. Increase in CGS per unit & decrease in quantity: ΔC_(pa)=(p'-p)Q'+p(Q'-Q) Decrease in CGS per unit & increase in quantity: ΔC_(pb)= (p'-p)Q+p'(Q'-Q) Increase (or Decrease) in CGS per unit & quantity: ΔC_(pa)={(p'-p)Q+½(p'-p)(Q'-Q)}+{p(Q'-Q)+½(p'-p)(Q'-Q)} (p : previous CGS per unit, p' : current CGS per unit) 3. Analysis of variation in operating expenses Increase in the rate of operating variable expenses per unit &decrease in quantity: ΔC_(o₁)=(f_0'-f_0)+(p'·r₄'-p·r₄)Q'+p·r₄(Q'-Q) Decrease in the rate of operating variable expenses per unit & increase in quantity: ΔC_(o₂)=(f_0'-f_0)+(p'·r₄'-p·r₄)Q+p'·r₄'(Q'-Q) Increase (or Decrease) ,in the .rate of operating variable expenses per unit & quantity: ΔC_(o₃)=(f_0'-f_0)+{(p'·r₄'-p·r₄)Q+½p'·r₄'-p·r₄)(Q'-Q)}+{p·r₄(Q'-Q)+½p'·r₄-p·r₄)(Q'-Q)} (f_0 : previous operating fixed expenses, f_0' : current operating fixed expenses, r₄ : previous rate of operating variable expenses, r₄' : current rate of operating variable expenses) 4. Analysis of variation in the other revenues & expenses. Other revenues: ΔN₁=(I₁'-I₁)+(A₁'-A₁)+(M₁'-M₁) Other expenses: ΔN₂=(I₂'-I₂)+(D'-D)+(A₂-A₂)+(M₂'-M₂) (I₁ : receivable interest, I₂ : payable interest, A₁ : valuation income, A₂ : valuation expense, D : depreciation, M₁ : miscellaneous income, M₂ : miscellaneous expenses) :5. Analysis of the correlation of cost-volume-profit. Gross Margin (G₁) : ΔG₁=ΔS-ΔC Operation Margin (G₂) : ΔG₂=ΔS-(ΔC+ΔC_0) Normal profit (Earning before special gains or losses & income taxes)(G₃) : ΔG₃=(ΔS+ΔN₁)-(ΔC+ΔC_0+ΔN₂) (N₁ : non-operating income, N₂:non-operating expenses) 'Since the ultimate purpose of analysis of variation in profit is to provide some informations for management, the further analysis for each product, region & customer in sales has to be included in the study on the variation in margin. Therefore, I think,. a more careful and sufficient study on this field should be forthcoming.

肉加工品 流通의 改善策

金喆鎬 韓國農業政策學會 1987 농업경영정책연구 Vol.14 No.1

고체표면의 결정화속도 : 흡착등온식을 통한 고찰

김철호 호남대학교 1997 호남대학교 학술논문집 Vol.18 No.4

Adsorption isotherm due to the interactions of inter-adsorbed molecules is derived. Our theoritical results for adsorption qualitatively well reflect to the experiments. Statistical thermodynamics is used throughout.

RAC용 Sirocco Fan의 토출부 Duct 내부유동에 관한 수치해석적 연구

김철호 서울産業大學校 1996 논문집 Vol.44 No.1

Problems related to the aerodynamic induced noise is one of the hotest issues to be seriously considered in the home electronic appliance industry. There must be several noise sources in the appliances but one of the main reasons of the induced noise in a system is mainly due to the structure of the airflow path of the system. Therefore the induced noise problem in the home appliances may greatly be improved with a careful study of the airflow path of the products. In here, a numerical simulation was conducted to find out the best way to get ride of the recirculation flow zone at the elbow duct which is a part of the air induction system of a room air-conditioning unit. From a provious experimental study, it was found that the air recirculation phenomena is a serious source of the aerodynamic induced noise in a system. The turbulent kinetic energy generated at the recirculation zone is the energy source which is converted into the induced noise in a system. In this study, three different models which were redesigned from the original one with aerodynamic concepts were tried to reduce the intensity of the recirculation in the induction system. Conclusively, it was found that guide vanes installed in the induction system have the best effect on the improvement of the airflow characteristics comparing with the other two models.

파킨슨병 환자에서 Selegiline과 SSRI 병용에 의해 발생한 중추성 세로토닌 증후군

김철호,권석범,정산,윤성희,황성희 최신의학사 2003 最新醫學 Vol.46 No.11-12

중격류가 형성된 심실중격결손의 임상 및 혈역학적 특성

김철호,서선복 인제대학교 1988 仁濟醫學 Vol.9 No.3

심실중격결손의 자연폐쇄기전 중 중요한 부분을 차지하는 것으로 알려진 중격류 형성에 대한 임상 및 혈역학적 특성에 대하여 분석 관찰하여 보았다. Twenty five cases of VSD with septal aneurysm which was confirmed by LV angiography and 2-D echocardiography during the period of 18 months from November 1986 to April 1988 at Pusan Paik Hospital were studied and analyzed. The summary of studies are as follows : 1) Septal aneurysm was found in 25 (36%) of 69 cases of total VSD and in 45% among membranous VSD. 2) In analyzing 25 cases with septal aneurysm, the sex ratio was not different significantly and age group of 1-5yrs was involved more predominantly than other age groups. The youngest patient was 9 month-old male. 3) Among 25 cases with septal aneurysm, 3 cases (12%) had previous heart failure. 4) In almost 80% of the patients with septal aneurysm, EKG and chest X-ray findings were non-specific or nearly normal. 5) Qp/Qs in cases with septal aneurysm was below 2.0 in 95% of the cases, and was below 1.5 in 75% of the cases. Right ventricular pressure was also within normal limits in most of cases. 6) There was no specific problems complicated by septal aneurysm. Partial obstruction of right ventricular outflow tract was observed in 1 case. 7) There was no significant difference in detection rate between 2-D echocardiography and LV angiography; which was 80%, 88% respectively.

공간주기성을 갖는 흡착열분포에 대한 흡착등온식

김철호 호남대학교 산업기술연구소 1996 산업기술연구논문집 Vol.3 No.-

흡착열공간분포를 외형적으로 포함하는 Heterogeneous표면상의 흡착등온식을 유도한다. 그리고 모형흡착열공간분포함수를 도입하여 우리가 유도한 등온식의 유효성을 정성적으로 확인인다. 전편을 통하여 통계열역학이 적용되었다. We derive an adsorption isotherm on the heterogeneous surface, in which spatially periodic adsorption heat distribution is considered. Usefulness of the derived adsorption isotherm is discussed qualitatively with the help of a model calculation. Thermodynamical statistics is used throughout.