초등학교 교사의 직무 스트레스의 특성

당동진,박희진,박종안,손부순,이종화 순천향대학교 기초과학연구소 2006 순천향자연과학연구 논문집 Vol.12 No.1

The study does to elementary school teachers who is locating in Kyonggido and Chungchongnamdo and searched job stress level. The study achieved study to verifies job stress difference by background factor of elementary school teachers and searches job stress relation. The result is as following, job stress level of elementary school teachers occupied part that appeared in individual life, human relations, charge job, working environment, compensation structural order, administration structural order, station in life but is much in charge duty, compensation structural order specially. By Individual factor analysis, the result according to sex and scholarship has been regarded. By sex, Perception level of stress higher in male than female and by scholarshiP, Perception level of stress higher in graduate from college group than another group. But, marriage factor was not significantly. By teaching profession factor, don't regarded position and career in teaching. By school environmental factor, mostly, job stress of teachers seems to increase bigger school scale.

전기삼투에 의한 활성탄 속의 Phenol 제거

윤진민,김부웅 釜山大學校生産技術硏究所 1996 生産技術硏究所論文集 Vol.50 No.-

Phenol을 흡착시킨 활성탄에 대한 정전류 조건하의 건기삼투 특성을 조사하였다. NaOH 수용액의 경우에 2.0volt/cm 이상의 전압구배에서 전기삼투가 일어난다. 전기삼투투과 계수와 전기삼투전달 효율은 시간 경과에 따라 변화한다. 겉보기 전기전도도는 초기에는 감소하며 시간 경과에 따라 거의 일정한 값을 갖는다. 전기삼투가 진행됨에 따라 양극에서 생성된 ??이온은 음극 쪽으로 이동한다. 50㎎/g carbon으로 활성탄에 흡착된 Phenol은 전기삼투로서 효과적으로 제거된다. Electroosmotic characteristics under constant current conditions for a activated carbon loaded with phenol were investigated. In the case of NaOH aqueous solution, electroosmosis requires the minimum potential gradient of 2.0 volt/cm. The initial apparent conductivity values decrease in time and then reach a constant value. During the electroosmosis, ??? ions generated at the anode move toward the cathode. Adsorbed phenol at a level of 50㎎/g carbon is efficiently removed.

중성자 방사화 분석법을 이용한 대전공단지역의 미량금속의 특성

구부미,임종명,이진홍 忠南大學校 環境問題硏究所 2001 環境硏究 Vol.19 No.-

This study focused on the quantitative analysis of about 30 trce metals including toxic ones for Daejeon industrial complex area. Sampling period was about 10 months, and PM 10 was collected on Whatman 41 cellulose filter by a high-volume air sampler. Then, PM 10 samples were analyzed by NAA. The following results were summarized from this study: (1) the mean concentration of PM 10 was 86.3㎍/㎥, and the seasonal concentrations of PM 10 and metals were minimum in summer; (2) the concentrations of soul related and sea salt metals, that is, Cl, ,Fe, Al, K, Ca, and Mg were to be much higher; (3) the results of enrichment factor analysis indicated As, Br, I, Cl, Se and Sb to be enriched in PM 10 Samples of our study site; (4) the result of factor analysis by SPSS showed that 84% of total variance was well explained, and communality of almost every metal was greater than about 0.8.

(Zn, Cd)S:Cu 형광체의 발광(PL, CL) 현상에 관한 연구

신영진,尹昌周,金富吉 全北大學校 基礎科學硏究所 1979 基礎科學 Vol.2 No.1

Photoluminescent and cathodoluminescent (Zn, Cd)S phosphors are prepared by firing at 850℃ in N_2 gas of atmospheric pressure for an hour. They are doped with (1) an activator CuS, (2) an activator CuCl, (3) a flux NH_4Cl, (4) both an activator CuCl and the flux NH_4Cl, an (5) not doped with either one. The crystal structure of ZnS phosphors powder is the mixed phase of cubic and haxagonal, while the powders of (Zn, Cd)S : Cu (Zn, Cd)S : Cu, Cl and (Zn, Cd)S phosphors are the hexagonal pattern under the same firing condition. Photoluminescent and cathodoluminescent cells are made with these phorsphors and their emission spectra are measured at room temperature after these materials are excited with 3650 A˚ light and cathode rays. These spectra are shifted from blue (green) to red wavelength as the CdS content of the phosphors is increased, The NH_4Cl flux is found to help the doping of the impurity energy level and it has SA center in SA emisson. The following two results are also observed about (Zn, Cd) : Cu;(1) the values of lattice parameter a are varied linearly with the molar fraction of (Zn,Cd) (2) the impurity changes with quadratic curve when the molar fraction is varied.

띠철근의 훅각도에 따른 콘크리트 기둥의 역학적 거동에 관한 실험적 연구

梁富弘,李萬鎭 충주대 2001 한국교통대학교 논문집 Vol.36 No.2

The result followed to tie hoop bend dia was the inner strength of examinations of B type which ACI code of examinations of A type was used was 95% in the limit inner strength of examinations.Fragility was 83% in B type examinations.Examinations which concrete compressive strength was 420kgf/㎠, comparing with examinations of the standard B type, was that A type was 1.02 times as strong as B type and C type was 1.02 as times as it.It showed that this was opposition in which compressive strength was 240kgf/㎠ in strength.Examinations of B type was 11.27 times as strong as A type, and C type was 10.89 times as strong as A type in ductility.As the result.it showed that ductility was superior to strength.As this was high strength concrete, due to the fragility character, it is decided that closed type tie steel like B type have to be used in the side of human safety in ACI code.

EMG를 이용한 事務用 倚子의 人間工學的 評價

황규성,부진후 동의공업대학 1999 論文集 Vol.25 No.1

In considering a seated posture, the important object is to suspend the body weight and to preserve a status of whole body. The study was conducted the discomfort of muscle by physical characteristic of existed office chairs(A, B, C, T-type) using EMG, which is used one of objective evaluation method. The measured muscles are trapezoids, T10-latissimus dorsi, L3-latissimus dorsi, and semimembranous. According to results of experiment, a chair that was not designed fit gives more fatigue to w. ist muscle (L3-1atissimus dorsi) and leg muscle(semimembranous) than other.

입원 남성 및 여성 알코올리즘 환자의 인구학적, 임상적 및 인격적 특성비교

정원후,김성부,장기용,손진욱,박철수 大韓神經精神醫學會 1997 신경정신의학 Vol.36 No.4

저자들은 1996년 5월 1일부터 1996년 7월 15일까지 부산·경남·대구 소재의 대형정신병원과 종합병원에 입원해 있는 여성 알코올리즘을 대상으로 하고, 또한 같은 기간에 국립부곡정신병원에 입원한 남성 알코올리즘을 비교군으로 해서 사회인구학적 특성, 음주양상, 음주와 관련된 문제점, 성격 및 정신병리등을 비교하여 남녀 알코올리즘에서의 원인과 임상적 특성에서의 차이점을 알고자해서 본 연구를 하게 되었다. 저자들이 작성한 반구조화된 설문지, MAST(Michigan alcoholism screening test). Zung의 SAS(Self-rating anxiety scale)과 SDS(Self-rating depression scale). MMPI(Minnesota Multiphasic Personality Inventory), SCL-90-R(Symptom checklist-90-revision) 및 EPQ(Eysenck personality questionnaire)등의 검사도구를 이용하였고, 그 결과를 독립표본 t-test(independent-samples t-test)와 χ²-test로 검정하여 다음과 같은 결론을 얻었다. 1) 여성 알코올리즘에서 남성 알코올리즘보다 더 낮은 교육 수준을 보였으며 초등학교수준 이하가 52.4%를 차지하였다. 반면에 남성 알코올리즘에서는 중학교·고등학교 수준이 76.7%였다.(p〈0.01). 2) 여성 알코올리즘에서 형제들 중에서 더 낮은 서열을 보였으며 세째딸이 1/3로 가장 많았고 다음이 외동딸로써 23.8%를 차지하였다. 반면 남성 알코올리즘에서는 장남이 46.7%였다.(p〈0.01). 3) 여성 알코올리즘이 사회경제적 수준에서 더 낮았다(p〈0,01). 4) 여성 알코올리즘의 음주시작동기는 대인관계를 위한 사교목적, 심리적 갈등이나 다른 정신적인 문제, 가족들과의 갈등 등이 비슷하게 많았다. 그러나 남성 알코올리즘에서는 대인관계를 위한 사교목적으로 음주하는 경우가 절대적으로 많았다.(p〈0.05). 5) 처음으로 음주를 시작한 연령은 여성 알코올리즘보다는 남성 알코올리즘에서 유의하게 더 어린 연령에서 시작하였다.(p〈0.001). 6) 1일 평균 음주량은 여성 알코올리즘에서 유의하게 더 적었다.(p〈0.01). 7) 금단증상경험, 알코올성 신체장애 및 음주로 인한 법적 처벌경험도 남성 알코올리즘보다는 여성 알코올리즘에서 유의하게 더 낮았다.(p〈0.05). 8) SCL-90-R에서 PSY척도에서 유의하게 여성 알코올리즘군에서 더 높았고, EPQ에서는 L척도에서 유의하게 여성 알코올리즘이 더 높았다(p〈0.05). 결론적으로 본 연구는 심리적 요인과 사회적 요인이 남녀 알코올리즘간에서 많은 차이가 있는 것을 알 수 있었으며, 여성 알코올리즘의 원인에는 심리적 또는 사회인구학적 요인이 더 밀접하게 연관이 되어 있음을 알 수 있었다. Objective : This study was designed to compare the characteristics of demographic data, clinical features, and personality in male and female alcoholics and to identify the clinically meaningful differences in the etiologies and the clinical features between the two groups. Methods : The study group was composed of 30 males and 21 females who were recruited into the impatient treatment. The researchers used self-reporting questionnaire composed of demographic data and drinking patterns, Michigan alcoholism screening test(MAST), self-rating anxiety scale(SAS) and self-rating depression scale(SDS) of Zung, Minnesota Multiphasic Personality Inventory(MMPI), symptom Checklist-90-revision(SCL-90-R), and Eysenck personality questionnaire(EPQ). The differences between the two groups were tested by chi-square test and independent-sample t-test. Result : 1) Education level of the female alcoholics was significantly less than that of male alcoholics(p〈0.05) and the birth order the female alcoholics was significantly higher than that of male alcoholics(p〈0.05). 2) The level of socioeconomic status of female alcoholics was significantly lower than that of male alcoholics(p〈0.01). 3) The initial motivations of female alcoholics were mainly due to social, psychological, and intrafamilial problems while those of male alcoholics were due to social problems. There were significant difference between the two groups(p〈0.05). 4) The onset of initial drinking in female alcoholics was significantly earlier than that of male alcoholics(p〈0.001). 5) The average amount of daily drinking in female alcoholics was significantly less than that of male alcoholics(p〈0.01). 6) Withdrawal symptoms, physical disorder, and social or legal problems induced by alcohol drinking in female alcoholics were significantly less than those of male alcoholics(p〈0.05). 7) The mean scores of PSY scale of SCL90R and of L scale of EPQ in female alcoholics were significantly higher than those of male alcoholics(p〈0.05). Conclusion : Demographic and psychosocial factors differed to a significant degree between male and female alcoholism. We suggest that these factors are more important in female alcoholism than in male one in the etiologies and the clinical features. These differences are due to more complex factors rather than simple ones, thus the further evaluations are needed to elucidate the differences in the etiologies between male and female alcoholism.

主觀的 方法을 이용한 事務用 倚子의 人間工學的 評價

김인준,황규성,부진후 동의공업대학 1998 論文集 Vol.24 No.1

The first requirement of good design is to fit the seat to the anatomical dimensions of the potential sitters. This paper is including that a two-stage evaluation procedure is employed : (1) use fitting trials to allow subjects to fit the chair to their body, (2) evaluate the general comfort and the body part discomfort of 4 chair existed. Each chair is compared with every other chair for comfort. Comparison of the judgements with the fitting trials and body part discomfort gave guideline of chair design, and methodology for office chair subjective ergonomics evaluation.

에너지 소비량을 고려한 最適 步行速度 決定

황규성,김인준,부진후 동의공업대학 1998 論文集 Vol.24 No.1

Biomechanics as a study of movement and mechanisms of motion with special emphasis on human beings has a long history. It began as early as the time of Aristotle and has since developed as a supplement to various basic sciences such as anatomy, physiology, and mechanics. Since Fenn(1930) presented his first article on running, many arguments have been presented concerning the energetics of human walking and running. Recently, however, Winter(1979, 1980)stated that a variety of analysis techniques and definitions have evolved producing anomalous results and differing conclusions. Then he proposed a definition that not only accounted for any external work but also for the internal work done by the limbs themselves. and presented the results for over-ground level gait. The purposes of the present study were to determine optimum walking speed use of criterion to optimize energy expenditure of metabolism energy and to study the relationship between walking speed and weight.

전기집진 장치내의 대전체 극성구조 형태에 따른 집진손실량과 에너지 관계 연구

하상안,박진식,김일배,김장호,장부규,서정민 동아대학교 환경문제연구소 1997 硏究報告 Vol.20 No.2

This stduy carried out to investigate the precipitating loss amount und energy by structural polarity of electrostatic precipitator at the different conditions of precipitatation time, high voltage and gas speed. As part of this wark was the dependence of the amount in the collector zone of a one- and two stage set up feld by precipitating time and gas speed. This advanced Model1 is developed by Research of the different parameter as the conventionnal study of modell. In order to investigate Opeartion efficiency of electrostatic precipitator, the amount of knocking losss was measured with concentration-Measuring of Monitik-treubung.