金利 自由化에 小考

鄭哲基 광주대학교 산업경영연구소 1993 산경연구 : 광주대 Vol.6 No.-

The substantial interest liberalization must be drived forward by all the combined analysis considered with finance-opening, deregulation of banks, the recovery of bank competition power, the recovery of price function of interest, internationalization of finance industry, and the establishment of elastic monetary-administration system. Especially we must improve the structure of interest rising and restrain an original increase of money to improve monetrary-control by direct regulation to drive forward the successful interest liberalization in our country. Accordingly we must put the fellowing points in mind to liberalize interest. First, political authorities must reduce political finance through lending of central bank. Second, political authorities must stablilze the balance of international payments. Third, political authorities must restrain the speculation of real esate. Fourth, political authorities must deregulate an interchange of personnel in banks.

經濟發展과 金融의 役割

鄭哲基 광주대학교 1985 광주개방대학 논문집 Vol.2 No.-

Compared with the long history of bank, it is just recent that the developing proccess of finance, and the causual relation between finance and economic development were founded as an understood theory. There is a close relation between economic development and financial one. R. W. Goldsmith said that relative relation between financial part and real asset one through practival analysis of many countries at the analysis of financial composition and economic development, namely, financial interrelation's ratio rises with economic development in the long time. But he did not reveal the causual relation between financial development and economic one. We have to find out the causual relation between economic development and the growth of real asset part, though the fact that the financial asset ratio followed by economic development rises and financial composition is varified was established by experience. Again, looking at the role of finance at the proccess of economic development. First, financial mediation function is that of collection civil's saving and linking this money to the investment of enterprise. Second, finance supplies depositary current, so finance plays an important part in the supply proccess of growing current. From the historical point of view, the function of providing enterprise management ability was mostly accomplished by finance at the first industerialized step. The role of finance is not the problem which we can decide through the theory, but we must analyze it, considering many other conditions of many other countries policy, society, culture, etc.

우리나라 은행합병에 관한 소고

정철기 광주대학교 산업경영연구소 1994 산경연구 : 광주대 Vol.7 No.-

A study on our contry's bank-combination Since 1980's the world finance environment is to distinguished as finance self-regulation, diversifying of finance demand, finance globalization, change of finance system by imformation revolution. These factors affect one another and cause to change world finance structure and style. Also banks in our country devise various measures for the competition with advanced foreign countries' banks when the agreement of UR derives to the openness of real world finance market. Efficient mangement of our banks, introduction of advanced foreign countries' banks technical mangement method, fostering specialized bankers, development of marketing strategy, enlargement of business realm must be established, but first of all, strengthening of banks' competition ability through the enlargement of banks' size is most important. Especially as recent banks come to be information-industrialization and equipment-industrialization, the enlargement of banks' size is repuired more than simplipied bank-scale enlargement. To accomplish this porpurse, banks must be combined as a part of strategy to survive by taking superior position of competition ability through the progress of finance self-regulation and finance market openness.

유럽연합의 농수산물과 에너지정책에 관한 연구

정철기 광주대학교 산업경영연구소 1996 산경연구 : 광주대 Vol.9 No.-

The internal and external basic problems about EU agricultural policy is caused only by excess production. The improvement direction of EU common agricultural policy is the great decrease of quantity regulation measure, in that time the transfer of regulated price policy by the market function prompted with production income connected closely, and subsidy policy to increase the income of small and medium scale farmers, that is Decouple Income Measure. To transfer the successful policy from now on, the coordination of profit and loss relationship among EU membership countries is required. The special feature of EU energy development program is the point that they establish the standard level as the step of R&D and they apply this level from the choice of theme to accomplishment and administration. Especially in the case of JOULE program about recycling of energy, they not only accomplish common supporting group composing theme by the govemment agencies and specialists composed of each department, but also participate in planning program and its direction establishment. And in the case of THEMIE program, the point that the anticipating energy saving quantity and substitute energy quantity is the standard, will be good reference to the energy technical development when they choose the theme.

적응관측기를 이용한 SPMSM의 속도 및 위치 센서리스 제어

정택기,이정철,이홍균,정동화 국립7개대학공동논문집간행위원회 2003 공업기술연구 Vol.3 No.-

This paper is proposed to position and speed control of a surface permanent magnet synchronous motor(SPMSM) drive without mechanical sensor. An adaptive state observer is used for the mechanical state estimation of the motor. The observer is developed based on a nonlinear model of the SPMSM, that employs a d-q rotating reference frame attached to the rotor. A adaptive observer is implemented to compute the speed and position feedback signal. The validity of the proposed sensorless scheme is confirmed by various response characteristics.

에탄올이 백서의 해마에서 Neuropeptide Y 발현에 미치는 영향

정홍경,이기철,이정호,이희제,정주호,이주영 대한생물치료정신의학회 2002 생물치료정신의학 Vol.8 No.1

에탄올을 장기간 섭취한 백서에서 Acamprosate 투여가 Nitric Oxide Synthase 발현에 미치는 영향

정홍경,이기철,이정호,이승휘,이희제,정주호 대한생물치료정신의학회 2002 생물치료정신의학 Vol.8 No.1

치과병원에서 사용되는 진단영상에 대한 JPEG 2000 압축률에 대한 평가

정기훈,한원정,유동수,최순철,김은경 대한구강악안면방사선학회 2005 Imaging Science in Dentistry Vol.35 No.3

Purpose : To find out the proper compression ratios without degrading image quality and affecting lesion detectability on diagnostic images used in dentistry compressed with JPEG 2000 algorithm. Materials and Methods : Sixty Digora periapical images, sixty panoramic computed radiographic (CR) images, sixty computed tomographic (CT) images, and sixty magnetic resonance (MR) images were compressed into JPEG 2000 with ratios of 10 levels from 5 : 1 to 50 : 1. To evaluate the lesion detectability, the images were graded with 5 levels (1: definitely absent; 2: probably absent; 3: equivocal; 4: probably present; 5: definitely present), and then receiver operating characteristic analysis was performed using the original image as a gold standard. Also to evaluate subjectively the image quality, the images were graded with 5 levels (1: definitely unacceptable; 2: probably unacceptable; 3: equivocal; 4: probably acceptable; 5: definitely acceptable), and then paired t-test was performed. Results : In Digora, CR panoramic and CT images, compressed images up to ratios of 15 : 1 showed nearly the same lesion detectability as original images, and in MR images, compressed images did up to ratios of 25 : 1. In Digora and CR panoramic images, compressed images up to ratios of 5 : 1 showed little difference between the original and reconstructed images in subjective assessment of image quality. In CT images, compressed images did up to ratios of 10 : 1 and in MR images up to ratios of 15 : 1. Conclusion : We considered compression ratios up to 5 : 1 in Digora and CR panoramic images, up to 10 : 1 in CT images, up to 15 : 1 in MR images as clinically applicable compression ratios.

급속혼화조건에서 Al(Ⅲ) 가수분해종의 분포특성

정철우,손정기,손인식,강임석 대한상하수도학회 2004 상하수도학회지 Vol.18 No.2

The overall objective of this research was to find out the role of rapid mixing conditions in the species of hydrolyzed Al(Ⅲ) formed by different Al(Ⅲ) coagulants. When an Al(Ⅲ) salt is added to water, monomers, polymers, or solid precipitates may form. Different Al(Ⅲ) coagulants (alum and PACI) show to have different Al species distribution over a rapid mixing condition. During the rapid mixing period, for alum, formation of dissolved Al(Ⅲ) (monomer and polymer) increases, but for PACI, precipitates of Al(OH)_(3(s)) increases rapidly. Also, for alum, higher mixing speed favoured Al(Ⅲ) polymers formation over precipitates of Al(OH)_(3(s)) but for PACI, higher mixing speed formed more precipitates of Al(OH)_(3(s)). At A/D and sweep condition, both Al(OH)_(3(s)) and dissolved Al(Ⅲ) (monomer and polymer) exist, concurrent reactions by both mechanism appear to cause simultaneous precipitation.

우리나라 金融産業 發展에 關한 硏究

鄭哲基 광주대학교 1986 광주개방대학 논문집 Vol.3 No.-

Though modern bank of our country was established about a century ago, our country's financial industry has been making progress for only recent 20 years. It is truth that our country's financial industry has been growing distinctly from its formal point, it is likely not to be enough in the growth of real economy. The reason why financial industry is inferior to real economy is : First, because of continuing inflation, household and enterprise are reluctant to hold financial asset including money. Second, there was no financial innovation. Third, antrepronoors frequently failed to invest the capital ??복사불량. Fourth, government controlled financial industry too strongly. Our country's financial industry of future must be established on the proposition that the proposition that the principle of chance and the principle of market economy should be ??복사불량. First, the direction and contents that finance Self-control should be rooted, must be established. Second, according to business cycle, government should content interest eiastically. Third, financial authorities should pursue profit maximizing for the officiency of financial industry. Fourth, financial industry should adapt the principle of competition and promote to develop the financial industry. I put emphasis on financial improvements in this article. But what is important is that government and authorities of financial field should have strong will to improve and carry out strenuously.