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      • 부산지역 수돗물과 지하수의 중금속 농도

        김준연,손지언,김형수,김두희,원미숙,김인식,이혜령 동아대학교 산업의학연구소 2000 산업의학연구소 논총 Vol.- No.5

        This study investigated mean airborne CO concention of 15 workplaces, suspected of CO exposure and conducted self-reported questionnaire completion and indirect COHb concentration measure using Micro II Smokerlyzer to healthy 702 adult subjects from 1999 May to 1999 September in order to find a relation of CO exposure and occupational factors, socioeconomic factors, and health related behaviors and confirm the related conditions in the screening test for CO exposure. The results of this study were summarized as follows : 1. In the CO exposed and non exposed group, COHb concentrations of the smokers were 2.55±0.96% and 2.21±0.97% and that got a statistically significant difference, There were not statistically significant differences in the age and total smoking index. Passed times after the last smoking, Working time/day, and working duration were statistically significant difference (p〈0.05). 2. In the CO exposed and non exposed group, COHb concentrations of non-smoking group were 0.94±0.35% and 0.68±0.47% and that got a statistically significant difference. There were not statistically significant differences in the age and working duration but Working time/day was a statistically significant difference(p〈0.05). 3. In the CO exposed group, r-square of multiple regression of the smokers was 38.5 % and passed time after the last smoking, working time/day, and job category were statistically significant differences (p〈0.05). And r-square in the CO non-exposed group was 38.3 % and age, passed time after the last smoking, and total smoking index were statistically significant difference. 4. In the CO exposed group, r-square of multiple repression of the non-smokers was 66.3% and job category and airborne CO concentration were statistically significant differences(p〈0.05). But r-square of non-smokers in the CO non-exposed group was 1.0% and there was not a statistically significant difference(p〈0.05). 5. In the smokers of CO exposed and non exposed groups, relation of COHb concentration and passed time after the last smoking was expressed as exponential function, Y = 2.9182e-0.0083x and r-square of this function was 37.4%. Therefore it was more than 150 minutes that passed time after the last smoking was when COHb concentrations were measured as less than 1%. In conclusion, variable, that was statistically significant to COHb concentraion in the both CO exposed and non-exposed smokers, was a passed time after the last smoking. We suggest that you have to restrict the smoking of smokers at least 150 minutes in the exposed and non exposed group before COHb concentration measure in order to exclude smoking effects

      • GaAs/AIGaAs 양자우물구조 검출기의 구속-연속상태 전이연구

        황형준,최정우,최우석 慶熙大學校 材料科學技術硏究所 1997 材料科學技術硏究論集 Vol.10 No.-

        We study the methods to calculate the bound-to-continuum transition amplitudes in a biased GaAs/AlGaAs quantum well detector structure. First we apply the complex energy method to evaluate the energy levels of meta-stable states. We also present how the coefficients of the travelling waves change with the complex value of energy. Transition amplitudes to each continuous scattering states are also calculated. The transition peaks evaluated agree well with the energy levels of the meta-stable states found using the complex energy method.

      • 답차운동부하검사법에 의한 관상동맥질환의 심전도학적 연구

        배형준,김주옥 서울保健大學 1996 論文集 Vol.16 No.1

        We examined adult patient l,000cases be questionable as coronary artery disease by treadmill exercise test, and the following results were obtained. 1. Total positive rate was 10.1%, and it was significantly differ between male and female(p<.05), and it was significantly differ as increase of age(p<.00l). 2. The stop reasons of treadmill exercise test were significantly differ between male and female, because of chest pain of female higher than male (p<.00l), and it was significantly differ as increase of age(p<.05), and it was significantly differ between positive and negative groups, because of most frequent stop reaseons were chest pain in the positive group and dyspnea in the negative group(p<.001). 3. Average maximum workload level of male was significantly higher than female(p<.001), and it was significantly decresed as increase of age(p<.001), and it was significantly differ between the total positive groups(81±2.7METS) and negative groups(9.3±2.4METS). And performance degree of maximum workload level in the positive group was most frequent as stage 3(42.6%). 4. Average maximum heart rate was not significantly differ between sexual groups in the positive group, but it was significantly differ between sexual groups in the negative groups(p<.001), and it was significantly decrease-as increase of age(p<.001), and it was differ between the total positive groups(158.5±23.0bpm) and negative groups(162.7±20.5bpm)(p<.0.1). 5. The reaching level of target maximum heart rate was not significantly differ as between sexual groups, as between age groups in the positive groups, but it was significantly differ in the negative groups, and it was not significantly differ between the total positive groups (93.2±l1.6%) and negative groups (94.2.±l0.l%). 6. Decreased cases of systolic blood pressure were 28cases in the toal positive groups, and most decreased as stage 2, and most frequently decreased level was lower than l0mmHg. 7. Decreased cases of ST segment were 93cases in the total positive groups, most frequently decreased level was higher than 1 mm under the baseline.

      • 비용극소화의 약공리(WACM)를 이용한 단기적 비용효율성에 대한 연구

        김형준 순천향대학교 사회과학연구소 2004 순천향 사회과학연구 Vol.10 No.1

        While the translog specification is considerably flexible form, it still is a parametric specification that may produce bias in estimators. Nonparametric approaches allow us to verify if the observed input-output data are consistent with optimizing behavior for some production function satisfying the regularity conditions without specifying the function in an explicit parametric form. This paper first study weak axiom of cost minimization, which is a nonparametric method of testing cost minimizing behavior. This approach is extended to accommodate short-run analysis.

      • KCI등재

        온라인 법률정보 시스템에 대한 침해와 형법적 대응

        金亨俊 中央大學校 法學硏究所 2001 法學論文集 Vol.25 No.2

        Stability of Security in operating constructed system and Guarantee of Confedence for Data is prior settlement to maximize on-line legal information systems. In practice, the worse situations become more serious because of wickedness of various kinds of computer crimes as the number of computer user has increased rapidly. As to this matter, for more secure using of legal information, this study focuses on computer data base, especially types of criminal injury in legal information systems, and on adapting regulations to the each type. Generally, types of crime with computer were discussed unlawful operation of computer, computer spy, improper use of computer, and breakdown of computer. First, input of informations and misusing of program, consol, or output are the parts of unlawful operation of computer. Second, breakdown of computer, so called 'computer sabotage', means bringing about property damage and interference in one's business by destroying and paralyzing others' computer. Third, computer spy means conducts of wrong collection or use of data, outcome, or program which is in computer processing including storage, transmission of the data. It is also described as unfair collection or disclosure. In response against these kinds of computer crime, it is inevitably needed legal sanctions, especially such as criminal punishment. Though Korean Criminal Law depended on its interpretation for a settlement because it could not reach new problems, Criminal Law 1995 amended, newly established regulations and special act related with information communication against those crimes. Therefore, this study emphases on how to contain certain conduct into a crime against each type of infringement in the area information communication.

      • 2000학년도 입학관련 정책연구

        김선형,남상인,엄태준,제갈욱,신현철,권준택 순천향대학교 부설 산업기술연구소 1999 순천향 산업기술연구소논문집 Vol.5 No.1

        This paper presents an improved admission policy of 2000 academical year so that more promising students apply for the University. By analyzing the past admission data and the questioned report, a unique admission policy has been suggested as the University feature reflected. One of the major differences compared from the admission policy of the last year is that the entry number limit for the special admission is in creased or newly established such as the entry allocated for recommended students, perfectly attending students, and regionally apportioned students. Also established is the special admission for those licensed students and late educated students.

      • 植物凝集素 Sophola japonica와 赤血球에 의한 사람 尿의 型分類에 關한 硏究

        尹馨培,黃迪駿 고려대학교 의과대학 1991 고려대 의대 잡지 Vol.28 No.1

        In order to classify the type of the urine by using of the inhibition effect of Sophola japonica which acts as pan-phytagglutinin, to human red blood cells. Compared the relationship between the type of urine classified in this study and the types of other specimens which are already proven by other methods. There are two types of human urine : one with sub-stances that inhibit the agglutination of Sophola Japonica extract to human red blood cells and the other without those substances. Among 300 human urine specimens involved In the present study, 12% (36 specimens )were shown to have those inhibition substances in their urine. The types of urine classified in this study showed no relationship with those classified by the Agastache rugosa extract. Neither the known type of saliva nor the type of experimented by the Sophola japonica extract had any relationship with the type of urine determined in this study. No significant relationship could be found between the various type of blood and Serum types such as ABO, MN, H, Cl, IPO, NPO, ICO, NCO and the urine type.

      • 국민학교 국어교재의 전기문에 관한 연구 : 연구영역-국어교육

        류준형 東亞大學校 國語國文學科 1976 국어국문학 Vol.1 No.-

        1. "Biography" (Jun-gi) is an abbriviation of "Biographical letters" (Jungi-mun) this is the abbriviation of Biographical literature (Jungi mun-hak) so these terms are "genre" which is formed with the same concept. 2. Biographic letter sppears first in 3rd grade and is taken 14% of all in 21 chapters which are seperated upto 6th grade 5th grade takes 9chapter (24%) and has the most parts in the whole chapters and 6th grade has the least parts, 3chapters (9%) Deviding into the kinds of greatmen the least chapter is for governora(kings). Especially neither business man, saint, and phylosopher nor writer and musician in art not dealt with although(=othersvise). General yi, sun sin comes up twice. 3. With kinds of period the greatmen at yi-dynasty (the Dynasty of kingyi's) are overwhelmingly 7chapters(5%) and France is taken 3 chapters which are the first rate in kinds of the countries. In 3rd grade there appears mostly the youth's life and ancedate of greatmen's and in 4th grade their administrative achievement is heavy dealt adding to this. at the end of chapters in 5th and 6th grade the outline of their life is written with a brief personal critism. 4. Qualification with biographical letters is presented in itself lifelike feeling to the children over realistic materials, but on one hand there are some chapters that are not able to be understood correctly the great men's real personal image to the children because of excessive idealizotion against personality, on the other hand there are some chapters which seem not to be the concrete presentation given exitement to them. 5. In textfook for biographical letters is predicated childhood of a greatman, as if he is grown with ability for hero ar a man of character and it is apt to carry out a serious problem because ti is fixed early at beginning of his life or ecologically. It is a very concept of cultivation and training or so for children to be transmitted through the biographical letters. Human being who is stirable being is changed and developed unceasely so both unceasing effort and process is emphasized to be important until he get a name of hero or greatmen 6. Special leadership for biographical letters should be considered, because biographical letters is, in forming a view of value, not only the density is big but it is different from the other literature. 7. Except the textfooks story fook for great men which is overflown in town is reappraised in taking into account, and Children have to be led to read much a good one.

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