분포 증발산량 산정 결과의 격자형 GIS 표현

박진혁,황의호,이근상,채효석 한국지리정보학회 2004 한국지리정보학회지 Vol.7 No.4

본 연구에서는 원격탐사나 지리정보시스템 등을 적응하여 ASCII형태의 수지표고자료와 원격탐사 자료를 이용하여 분류한 토지피복도를 이용하여 각 토지피복별로 알베도와 바로크계수, 증발효율 등을 이용할 수 있는 격자형 토지피복자료를 격자단위로 분할하여 모형의 입력값으로 이용하였기 때문에 유역의 공간적인 특성을 반영한 덜다 정확하고 신뢰성있는 자료의 구축이 가능했고, 기존의 열수지법을 이용하여 증발산량의 시 공간적인 분포양상을 계산할 수 있는 격자기반의 분포형 증발산량 추정 프로그램을 포트란언어고 개발하였으며, 격자형 증발산량 산정 모형은 향후 연될 격자기반의 분포형 강우-유출모형과 통합할 수 있도록 고려하였다. 또한, 격자기반의 계산으로 증발산량에 대한 유역내 특정지점에서의 시7)적 변화 양상과 공간적 분포 양상을 GIS상에서 나타낼 수 있도록 구성하였다. 모형의 적용성 검증을 위해서 비교적 정화한 기상자료와 수문자료를 보유하고 있는 일본의 쇼나이강 유역(532㎢)을 대상으로 적응한 결과, 유역 연평균 증발산량은 825.4mm로 나타났다. A Grid-based distributed evaporation prediction model which calculates temporal and spatial evaporation with a heat balance method was developed. And, the model was considered as the integration with distributed hydrological model in near future. This model was programmed by fortran language and used ASCII formatted map data of DEM (Digital Elevation Model) and land cover map extracted by remote sensing data. Also, temporal variations and spatial distributions of evaporation are presented by using GIS. To verify the applicability of the model, it was applied to the Shonai river basin (532㎢) which has sufficient meteorological and hydrological data, Japan. The result shows that the estimated mean annual evaporation was 825.41nm, and this value is estimated as suitable things in considering rainfall and discharge data in study area.

가족성 고콜레스테롤혈증 유병자에서 HMG Co-A Reductasen Inhibitor 및 Bile Acid Resin의 투여로 인한 아킬레스건 황색종의 감소

채인호,한기훈,박영배,조주희,김효수,손대원,김철호,오병희,이명묵,최윤식,서정돈,이영우 대한순환기학회 1997 Korean Circulation Journal Vol.27 No.9

韓國 低所得層 老人生活에 관한 社會ㆍ經濟 및 空間問題 硏究

李效再,池淳,朴敏子 이화여자대학교 한국문화연구원 1979 韓國文化硏究院 論叢 Vol.34 No.-

The problems of the aged are emerging as a social problem in Korea. These problems are resulting from various factors : urban- industrialization, the change of family structure and occupational structure, the change of values and increased life-span owing o the advancement of medical science. Compared with Western developed countries where old-age welfare policies have been institutionalized, our social programs for the aged are in the beginning stage og development. In order to solve the problems of the aged, and to design old-age welfare policies, it is important that we have a clear understanding of the nature of these problems. This study was designed to find out the problems of the aged in urban low-income neighborhoods, and analyze the problems in connection with their life in family and community. Finally, the study attempted to examine the correlation between some variables and life satisfaction for the old people. The analysis was based n the data obtained from the questionnaire method of sample survey and case studies conducted through interviews. The sample was randomly selected, with the interviewees consisting of 149 residents in apartment areas and 151 in traditional housing areas. 100 three-generation households were selected in both areas purposely. The case study was used for grasping the situation of the community facilities for the elderly. 4 cases in Seoul and 1 in a rural area were selected purposely. Major findings are as follows: 1. The problems of the aged in the family directly result from their economic status. Difficulties stem from the fact that their major income source is their children's help and that even the children belong to the low-income group. This economic problem causes a lack of living space as well as health problems. They cannot afford to have proper medical care such as regular check ups or medical care during disease. The Economic problems limit their social activity and hinder their relations with their children, relatives, and friends. Nevertheless they are not interested in having jobs or work to do. They prefer, rather, to go on trips or just to rest at home in their old days. This way of thinking differs from that of their children, who believe it would be good for the old people to have work or jobs appropriate to their health condition and ability. This difference of attitude or values could be a source of strain in family relations. Related to those problems in the family is the steady corrosion of the traditional belief that old people's problems should be solved by their own family. To cope with this change, community acre programs are urgently needed. 2. The only public facility existing for the elderly on a community level, is an organization known the OLD PEOPLES HALL. The economic problems of low-income people also have an effect on the operation of the organization. That is, the lack of finances brings about a series of problems such as inadequate space, insufficient facilities and unsatisfactory programs. Institutionalized support from the government or private organization is greatly needed to have more old people participate voluntarily in this organization. 3. By the Chi-square (χ2) test it was found that some variables have a significant effect on the degree of life satisfaction of the aged. The variables are marital status, educational attainment, religious affiliation, job (whether he/she has a job or not), how (leisure) time is spent, social participation, and the frequency of visits from their childrens. It has been shown that sex, age, type pf living arrangement, frequency of going out and kinds of hobby have no strong relation to the degree of the elderlys life satisfaction. The suggestions on the basis of the above problems are as follows : 1. Since the traditional family-centered way of caring for aged has and continues to wane, various solutions are required to provide alternatives for their own selection, i.e., for the aged who want to be separated from their children public and private pay nursing homes equipped with good facilities could be established. 2. It is desirable to give priority in housing loans to low-income families who rake care of their parents in the same household, in order to reduce the dwelling space problem. 3. Institutionalized medical aid program and discount on public fares for the low-income aged are urgently needed. In addition, the arrangement of proper jobs for the aged who wish to work is recommended. 4. For the low-income aged who have nothing to do and no space for spending leisure time, increasing the number of old peoples' centers as well as developing program for recreation and education are required. 5. Counselling centers are needed for both the old people and their children who need advice for their family-related problems. Also to be recommended is the development of research institutions for providing systematic information and data to design old-age welfare policy for the future.

소아에서의 Nd : YAG Laser를 이용한 치은착색제거술 YAG Laser in children

모경희,박헌동,박종휘,김효석,정현구,설재헌,이병채 조선대학교 구강생물학연구소 2003 口腔生物學硏究 Vol.27 No.1

Melanin is normally found in the skin of all people, and normal pigmentation of the intraoral tissues is a relative frequent finding. Gingival hyperpigmentation may cause esthetic problems and embarrassment, especially in patients with a gummy smile. Melanin pigmentation is related to etiologic factor such as hormon, systemic factor, drug, smoking and gingival inflamation. Depigmentation procedure can be Performed by gingival epithelium removing procedure, gingivectomy, free gingival graft, laser therapy, dry ice, Vitamin C and phenol-alcohol method. We could obtain favorable esthetic results by procedures such as Nd: YAG laser. The Nd:YAG laser was set at 4 watt, 50mJ, 80 pulse per second. The procedures were performed with contact mode in all pigmented areas by using a handpiece with a 320㎛ diameter fiber optic. Ablation of the gingival hyperpigmented gingiva appeared healthy, pink, and firm. No recurrence of hyperpigmentation had been found in 6 months of follow-up.

한국인에서 혈소판 당단백 Ⅲa 유전자 다형성과 급성 관동맥 증후군의 관계

김광일,채인호,김효수,손대원,오병희,이명묵,박영배,최윤식,이영우 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.5

Roxythromycin-tylosin-furaltadone 합제의 닭 유래 세균에 대한 시험관내 항균효과

김지영,채미경,윤효인,서상희,박배근,김현수,전무형 충남대학교 수의과대학 동물의과학연구소 2003 動物醫科學硏究誌 Vol.11 No.-

In vitro antimicrobial susceptibility of roxythromycin (Rx), tylosin (Tyl), erythromycin (EM) and furaltadone (Fur) was studied, either by the single type or the combinated type of Rx-Tyl-Fur (RTF) against E. co1i (30 strains), Staph. aureus (20 strains) and Mycoplasma gallisepticum (5 strains) that are the major pathogens in poultry farm. The paper disk diffusion and MIC tests were applied. In screening test by paper disk diffusion method, the single types of antibiotics showed the sensitivity against 55 strains of bacteria in order of Fur, EM, Rx and Tyl. The combinated RTF showed the higher rate of sensitivity (80∼83.3% at 64㎍/disk, 60-75% at 32㎍/disk) and wider range of growth inhibiting zone (19.6±3.7-24.8±4.7mm) than those of the single drugs. In MIC test, the sensitivity against the 55 strains appeared in order of Fur. EM, Rx and Tyl as similar to those of paper disk diffusion method. The MIC ranges of RTF were 0.125∼16㎍/ml for E. coli, 0.25∼16㎍/ml for Staph. aureus and 1-8㎍/ml for Myco. gallisepticum, showing evidently lower than those of the single types. The MIC_(50) and MIC_(90) of RTF were estimated l∼4㎍/ml and 8∼16㎍/ml, respectively, and remarkably lower than those of the single drugs.

Si Bulk Micromachining을 위한 Wafer Rolling Etching 및 그 특성

김건년,이보나,박효덕,신상모,공경준,장동근,김병철,권혁채,이봉희 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1

A wafer rolling etching system for the silicon bulk micromachining has been designed and fabricated. The silicon diaphragms were anisotropically etched in a 24.5 weight percent KOH solution. Compared to the conventional KOH etching systems, pyramidal hillocks, and wave-shaped structures on the etched surfaces were greatly reduced by using this system. After etching for time of 438 minutes, the average etched depth and the etch-rate were measured to be 537μm and 1.22μm/min, respectively. The average etching uniformity of etching depth was 0.87% in 5-inch wafer. Our results showed that the wafer rolling method enhanced etch uniformity and etch rate.

Ciprofloxacin의 돼지 호흡기 감염증 및 설사증에 대한 치료효과

전무형,김지영,채미경,서상희,김명철,박창식,김태용,윤효인 충남대학교 형질전환복제돼지연구센터 2004 논문집 Vol. No.8

To evaluate the clinical efficacy of ciprofloxacin (CFX) on treatment of the pigs with respiratory diseases or diarrhea. CFX at various dosages were administered intramuscularly to the diseased pigs selected from the pig farms located in Chungnam province. One hundreds and fourteen heads of pigs with respiratory diseases were divided into five groups and CFX at 0.25, 0.5, 1.0 (= 2.5mg CFX/Kg B.W.) and 2.0 doses were administered i.m. for 5 days. The recovery rates were found 31.8%, 73.9%, 91.3% and 92.0%, respectively, being higher than that of the untreated control group (19.0%). The mortality of the treated groups were 0%, that is lower than that of the control (9.5%). Seven kinds of bacteria were isolated from the respiratory organs of 86 pigs, and 34 (39.5%) of 86 pigs showed the complicated infection. In analyzing by the pigs infected with a single pathogen as P. multocida; A. pleuropneumonia. Staphyloccus spp. or Mymplasma spp., the recovery rates were 0∼66.6% at 0.25 dose, 66.6∼100% at 0.5 dose and 100% in all of 4 pathogens at 1.0 to 2.0 doses. At 0.25 dosage the pigs infected with A. pleuropneumonia showed the lowest recovery rate. One hundreds and twenty two heads of pigs with diarrhea were divided into five groups and CFX at 0.25, 0.5, 1.0 (= 2.5mg CFX/Kg B.W.) and 2.0 doses were administered i.m. for 5 days. The recovery rates were 29.1 %, 40.0%, 80.0% and 88.0%, respectively. The mortality of the treated groups were 0∼8.3%, being much lower than that of the control. Four kinds of bacteria were isolated from the fecal specimens of 94 pigs, and 84 (89.0%) of 94 pigs showed the complicated infection.

집적화된 실리콘 압력센서의 출력전압 보상파라미터 추출 및 그 특성

이보나,김건년,박효덕,신상모,이경탁,김찬,권혁채,이상조,박현주 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1

An integrated silicon pressure sensor has been designed, fabricated and tested. The signal conditioning circuits were designed to include calibration and temperature compensation of output voltage through trimming of diffusion and ion-implanted resistors. Before trimming of resistors, the compensation parameters such as pressure sensitivity, temperature coefficient of pressure sensitivity, temperature coefficient of piezoresistors and pressure sensitivity of piezoresistors were measured. Then offset voltage, span, and temperature coefficients of offset voltage and span were calibrated by trimming of resistors. The measured output voltage met our design specification and simulation value above room temperature. But, the measured output voltage at -30°C deviated from our design specification and simulation value because the offset voltages were found to vary randomly as a function of temperature.

고두께 유리-실리콘의 대면적 양극접합에 관한 연구

김건년,이보나,박효덕,신상모,이근혁,권혁채 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1

In this paper, we studied the anodic bonding of 5-inch silicon and #7740 Pyrex glass wafers with a thickness of 3mm by using the EV501 bonder and the Karl Suss SB6 bonder. The test conditions for anodic bonding of the EV501 bonder system with a full field electrode were temperature of 400 ℃ and voltage of 800V in a chamber pressure of 1X10^(3)mbar. The SB6 bonder with a star shaped electrode was tested at the temperature and voltage of 450 ℃ and 1300V in the atmosphere, respectively. As the results of test, we obtained the void free samples regardless of shape of substrates such as etched wafers with cavities and drilled glasses with holes.