• Environmental Analysis Health and Toxicology
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• 제30권
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• pp.17.1-17.6
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• 2015

Objectives In this study, the possibility of using existing test data provided in Korea and elsewhere for the registration of chemical substances was examined. Data on 510 chemical substances that are among the first subject to registration under the "Act on the Registration and Evaluation, etc. of Chemical Substances (K-REACH)" were analyzed. Methods The possibility of using existing data from 16 reference databases was examined for 510 chemical substances notified in July 2015 as being subject to registration. Results Test data with the reliability required for the registration of chemical substances under the K-REACH constituted 48.4% of the required physicochemical characteristics, 6.5% of the required health hazards, and 9.4% of the required environmental hazards. Conclusions Some existing test data were not within the scope of this research, including data used for registration in the European Union (EU). Thus, considering that 350 of these 510 species are registered in EU Registration, Evaluation, Authorisation & Restriction of Chemicals, more test data may exist that can be utilized in addition to the data identified in this study. Furthermore, the K-REACH states that non-testing data (test results predicted through Read Across, Quantitative Structure-Activity Relationships) and the weight of evidence (test results predicted based on test data with low reliability) can also be utilized for registration data. Therefore, if methods for using such data were actively reviewed, it would be possible to reduce the cost of securing test data required for the registration of chemical substances.

• 대한정형도수물리치료학회지
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• 제17권1호
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• pp.45-50
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• 2011

Background: To determine effects of mobilization with movements (MWM) application on stroke patient with hypomobility on sacroiliac joint. Methods: The subject was 47years old male who have left hemiplegia because of right intra-cerebral hemorrhage. The subject was have hypomobility on sacroiliac joint. MWM using during 4weeks and using Berg balance scale (BBS), Timed up and go (TUG), 10meter walking (10MW) test for evaluation. Results: The results of this study were summarized below; BBS score for evaluating balance ability was increased, and TUG time, 10MW test time was decrease. Conclusion: We consider that MWM application on stroke patient with hypomobility on sacroiliac joint is not only regain mobility on sacroiliac joint but also increase in balance ability and walking speed.

• 전기학회논문지P
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• 제62권1호
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• pp.50-55
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• 2013

Subjects with 0.7[clo]'s amount of clothing were estimated on their thermal comfort, concentrativeness, heart rate variability, stress and fatigue degree when given variation in relative humidity to 30, 40, 50, 60, 70, and 80[RH%], in an environmental test room of temperature 25[$^{\circ}C$], illumination 1000[lux] and air velocity 0.02[m/sec], by using EEG, learning ability and HRV. At the result, it was at 50~60[RH%] of relative humidity that subject's thermal comfort and concentrativeness were at the highest while stress were at the lowest, and it was at 60[RH%] of relative humidity that heart rate variability was most stabilized. It was found that when temperature and humidity of the environmental test room are at 25[$^{\circ}C$] and 50~60[RH%], subject's productivity and psychological state are least affected.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 합동 추계학술대회 논문집 정보 및 제어부문
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• pp.184-186
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• 2001

This paper describes a method of human sensibility evaluation for pleasant and unpleasant environments. Conditions of the environment are room temperature and humidity. Changing the conditions, 10-channel EEG signals for 4 subjects are collected. Linear predictor coefficients of the recorded EEGs are extracted as the feature parameter of human sensibility. A neural network-based human sensibility estimation algorithm is developed. The developed algorithm showed good performance in the pleasantness evaluation. The neural network output produced accurate states of pleasantness sensibility. Subject-independent test showed similar results with subject-dependent test.

• 가정과삶의질연구
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• 제1권2호
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• pp.1-20
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• 1983

The purpose of this study is to analyze the planning dimensions according to homemaker's age and education. In this study the dimensions of planning are participation, time span , significance, specifity and flexibly. The subject areas of planning are family economy, household activities, child rearing and purchasing. Questionnaires were given to the selected 181 homemakers living in Seoul and Incheon. Data were analyzed by frequency, percent, x2 -test, F-test. The result are as follows: 1) There are significant differences in planning dimensions according to homemaker's age and education in some subject areas. 2)The younger the homemaker is and the higher her educational level is, the more cooperatively the couple plan in family life. 3)The family of which homemaker is younger and more educational tends to plan significantly, specifically and flexibly in family life.

• 한국음향학회:학술대회논문집
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• 한국음향학회 1994년도 FIFTH WESTERN PACIFIC REGIONAL ACOUSTICS CONFERENCE SEOUL KOREA
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• pp.1058-1063
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• 1994

In this study we developed monosyllable lists for articulation test for Korean. We sampled 103,581 colloquial monosyllables, applied them to five selection rules that based on Korean linguistic characteristics, and finally constructed five different lists with fifty monosyllables. The validity test using the monaural impairment factors such as S/N ratio and cut-off frequency showed that articulation scores were chanted systematically according to the level of impairment factors. In addition, we investigated the effect of azimuth of a single competing sound upon articulation scores. The syllables were always reproduced by the loudspeaker in front of the subject, while Hoth noise were reproduced by the loudspeaker with varying azimuth around subject. The result indicated that the articulation depended on the azimuth of competing sound sources. Finally, no significant differences among lists were found in all experimental conditions.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.864-869
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• 2008

Magnetic Levitated(Maglev) Vehicle, which utilizes electromagnetic forces between dual-pole electromagnets and a steel rail, generally runs on guideway structures. A prototype of an Urban Maglev Vehicle has been developed and tested in Korea, This study was conducted as a cooperation research subject of the 3-1 subject, performance improvement of maglev track structures, of the Center for Urban Maglev Program, statred in 2006. As the Maglev load is distributed rather than concentrated, a field test was conducted on Simple Span PSC-BOX Girder Bridge(L=25.0m) of the Expo-Maglev test track in Daejeon to examine the dynamic effect of the Maglev load on the bridge. Numerical analyses were also performed up to the maximum passing speed of 110 km/h by 10 km/h increments of Maglev Vehicle using Finite Element model of bridge, and girder deflections, accelerations and Dynamic Amplification Factor (DAF) are analysed.

• 대한공업교육학회지
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• 제44권2호
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• pp.65-85
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• 2019

본 연구는 고교학점제 시행을 위한 선결조건, 외적환경개선, 운영방식, 직업계고 특성, 성공적 실행 및 정착에 대하여 직업계고 교원들을 대상으로 설문조사 하였다. 설문조사 후 담당교과(보통교과, 전문교과)별 교원들의 인식차이 유무를 알아보기 위하여 t-test 검증을 통하여 분석한 결과는 다음과 같다. 고교학점제 시행을 위한 선결 조건인 선택형교육과정도입, 교원들의 참여의지, 학교장의 지도성, 학생들의 고교학점제에 대한 인식제고, 과목이수요건, 학년진급요건, 졸업요건 확정, 고교내신 절대평가, 교사별 학생평가, 수능 영향력 축소, 교원 부전공 연수실시 등은 전문교과 담당교원들이 보통교과 담당교원들보다 통계적 유의수준 하에서 더 높게 인식하고 있는 것으로 나타났다. 반면, 고교학점제 시행을 위한 외적환경개선, 운영방식, 직업계고 특성, 성공적 실행 및 정착 관련 변인들은 전문교과 및 보통교과 담당교원들 간의 인식의 차이가 없는 것으로 나타났다.

• 대한물리치료과학회지
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• 제17권1_2호
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• pp.1-9
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• 2010

Background: The objective of this study was to determine whether sensorimotor training using an unstable surface affects dynamic balance and gait function in patients with hemiparesis, and to compare the effect of sensorimotor training with that of cycling exercise. Methods: Two subjects with post-stroke hemiparesis volunteered to participate in this study. Single-subject A-B design with alternating treatment was used for this study. Baseline(A) and intervention(B) phases were performed for 7 and 8 sessions, respectively. Sensorimotor training and cycling exercise were performed for 20 minutes in randomized order. Assessment tools were made by using a step test, timed up and go(TUG) test, and 6-minute walk test(6MWT). Results: Each of the participants improved in all three tests after the two interventions. Participants 1 and 2 showed the improvement for their assessment score after sensorimotor training in the step test by 42.1%(p<.05) and 58%, in the TUG, 31% and 19.5%, and in the 6MWT test, 32.3% and 10.6%(p<.05), respectively. After cycling exercise, participants 1 and 2 also improved in the step test by 32.5% and 53.1%, in the TUG, 27.4% and 18%, and in the 6MWT test, 28.8% and 3%. In statistical analysis between the two interventions, sensorimotor training showed a significant increased values in the step test for participant 1 and the 6MWT for participant 2 as compared with those of cycling exercise. Conclusion: Sensorimotor training and cycling exercise are helpful for improving dynamic balance and gait capacity. Furthermore, sensorimotor training may be more helpful than cycling exercise.

• 대한지리학회지
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• 제50권1호
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• pp.91-103
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• 2015

본 연구의 목적은 대학수학능력시험 한국지리 평가 문항들에서 지역적인 편중이 발생하는가를 알아보기 위한 것이다. 이를 위해 2005~2015학년도의 수능 한국지리 평가 문항에서 지도와 설명 및 그래프를 통하여 특정 지역이 한국지리 세부 영역별로 어느 정도의 빈도로 출제되었는가를 분석하였다. 분석 결과 수능 한국지리 220문항 중 약 42%에서 지도가 활용되고 있었고, 약 33%에서 구체적인 지역 정보가 제시되고 있었다. 한국지리의 세부 영역별로 볼 때 기후, 산업, 지역(지방) 영역에서 구체적인 지역 정보 제시가 많았다. 지난 11년 동안 수능 한국지리 출제 문항에 언급된 시 군은 모두 76곳이며, 이들 중 3번 이상 언급된 곳은 25곳이다. 가장 높은 출제 빈도를 보인 지역은 서울이며, 인천과 대구, 부산, 강릉, 제주 등이 출제 빈도가 높은 지역이었다. 수능 한국지리 평가 문항 분석 결과 세부 영역에 따라 차이가 있기는 하지만 지역적인 편중이 존재함을 확인할 수 있었다.