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The Effect of Color Temperature Changes on Bio-signals in Autonomous Vehicle Environment
( Kyubeom-kim ),( Hyungseok-jo ),( Seokhuen-ahn ),( Namhun-her ),( Sanghyeok-seo ),( Byungchan-min ) 한국감성과학회 2019 한국감성과학회 국제학술대회(ICES) Vol.2019 No.-
The creation of a stable indoor atmosphere of a vehicle is suggested as a solution for the receptivity problem. A pleasant environment is to be provided to drivers using lighting as a tool for it. The illuminance level of 10 1x(Lux) was presented based on night driving. As for color temperature, 3000K, 4000K, 5000K, and 6000K were presented at regular intervals. As a result of variance analysis by band for each color temperature, there was no difference in βPower, however, in the case of αPower, there was a statistically significant difference at the significance level of 5%(p<0.05). However, if the trend of data was examined, it can be certified that the activity of sympathetic nervous system was low at low color temperature(3000K, 4000K) and high at high color temperature(5000K, 6000K).
자동차 그래픽 시뮬레이터에서 동시자극에 대한 페퍼민트 향의 효과
김규범(Kyubeom Kim),민병찬(Byungchan Min) 인문사회과학기술융합학회 2019 예술인문사회융합멀티미디어논문지 Vol.9 No.5
본 연구는 차량 운전자가 동시자극으로 인한 환경에 처했을 때, 향 자극이 스트레스를 경감시키는 효과가 있는지 생체신호 측정을 통해 규명하고자 한다. 피험자 12명을 대상으로 생체신호의 주파수분석을 위해 뇌파는 α파와 β파로 구분하였으며, 심전도는 LF, HF대역별로 구분하여 중추신경계 및 교감신경계 활성도를 통해 안정, 각성상태를 확인하였다. 자동차 그래픽 시뮬레이터를 통해 운전 환경을 조성하였으며, 판단능력을 검사하는 Judgment Test Simulation을 실시하였다. 그 결과 뇌파의 경우, 주행만 실시한 대조군에 비해 동시자극을 제시한 실험군의 α파가 감소하였다(p<0.05). 향 자극을 제시하였을 경우, 대조군에 비해 α파가 감소하였으며 β파 역시 감소하였다(p<0.05). 심전도의 경우, 집단 간 유의한 차이가 나타나지 않았지만(p>0.05), 교감신경계가 활성화되는 경향을 보였다. 대조군과 실험군의 비교결과를 통해 동시자극이 스트레스를 유발하였음을 확인할 수 있었고, 향 자극을 통해 생리적으로 각성상태를 확인할 수 있었다. This study is aimed to specify whether or not fragrance stimuli have an effect to reduce the stress when vehicle drivers are in the environment of the simultaneous stimuli through bio-signal measurement. In order to analyze the frequency of the biological signal for 12 subjects, a brain wave was divided into α-wave and β- wave, and ECG is divided by LF and HF bands, and the state of stability and awakening was identified through the activity of the central nervous system and sympathetic nervous system. The driving environment was created through a vehicle graphic simulator, and Judgment Test Simulation which examines judgment ability was conducted. As a result, for brain wave, the α- wave of the experimental group where the simultaneous stimuli were presented decreased(p<0.05), compared to the control group where only a drive was conducted, When fragrance stimuli were presented, α-wave decreased and β- wave also decreased(p<0.05), compared to the control group. For ECG, there was no significant difference between groups(p>0.05), however, there was a tendency that sympathetic nervous system got activated. Through the results of the comparison between the control group and the experimental group, it could be identified that the simultaneous stimuli induced the stress, and through fragrance stimuli, the state of awakening could be identified physiologically.
( Kyounglea-kim ),( Chungkyo-in ),( Jungsun-park ),( Kyubeom-kim ),( Hyungseok-jo ),( Sanghyeok-seo ),( Byungchan-min ) 한국감성과학회 2019 한국감성과학회 국제학술대회(ICES) Vol.2019 No.-
The purpose of this study was to study the plans to reduce the stress and anxiety in military life, and to improve concentration when necessary. The experiment was conducted in the experimental group where the subjects were directly exposed to the frequency of SMR wave band through auditory stimulation, and in the control group where they were not. As a result of the t-test between the control group and the experimental group, there was a significant difference(P<0.05), and it was confirmed that the activity of sympathetic nervous system was shown in the subjects of the experimental group to which the auditory stimulation of a specific frequency(12.7Hz) band was presented in a shooting video.
한국판 어린이 및 청소년 성격유형검사(CATi) 표준화
심민보 ( Minbo Sim ),이정수 ( Jungsulee ),김영란 ( Youngran Kim ),신영규 ( Youngkyu Shin ),안범현 ( Byumhyun Ahn ),김재형 ( Jaehyoung Kim ),전미선 ( Miseon Jeon ),심규범 ( Kyubeom Sim ),김광성 ( Gwangseong Kim ) 한국심리유형학회 2017 심리유형과 인간발달 Vol.18 No.2
본 연구는 새로운 한국판 어린이 및 청소년 성격유형 검사도구(CATi)를 표준화하기 위한 것이다. 이를 위해 2013년부터 2016년까지 예비 표집, 본 표집, 추가 표집을 통해 총 5,284명의 전국단위 초등학생 4학년부터 중학생 3학년을 표집하였고, 이를 분석하였다. 탐색적 요인분석, 확인적 요인분석, 문항반응이론 등을 통해 신뢰도와 타당도를 확보하였고, 초등학생과 중학생이 함께 사용할 수 있는 검사도구를 만들었다. 문항 수가 줄었음에도 불구하고 기존 한국판 MMTIC 보다 신뢰도가 좋았으며, 미국 개정판 MMTIC의 통계기법 결과보다 더 좋은 검사결과를 보였다. 발달과정 중에 있는 어린이와 청소년의 성격유형 정보를 얻기 위해 종단연구의 필요성을 제시하고 있으며, 다양한 영역에서 새로운 검사도구의 활용을 제언하였다. This study is to standardize new korean child & adolescent type indicator(CATi). For this purpose, from 2013 to 2016, we sampled and analyzed national sample from 4 grade in elementary school to 3 grade in middle school through preliminary sampling, sampling, additional sampling. Through exploratory factor analysis, confirmatory factor analysis, and item response theory, reliability and validity were obtained. We created instrument that could be used together, elementary and middle school student. Even though the number of questions was reduced, the new version is more reliable than the previous korean version of MMTIC, and better than Statistical technique results of the US revised MMTIC. This study provides the need for longitudinal study to obtain information of types for children and adolescent in the development process, and the application of the new instrument in various areas.
朱相顯,金奎汎,申宰浩 동국대학교 산업기술연구원 1990 산업기술논문집 Vol.4 No.-
기존 디지털시스템에서는 二進符號를 사용하고 있기 때문에 원하는 정보를 표시하는데 많은 비트수를 필요로 하고 있는데, 비트수를 줄이는 방법으로 多値符號를 사용할 수 있다. 현재까지의 多値論理硏究결과를 보면 여러가지의 연산자를 정의하여 함수를 실현시키고 있으나 簡素化의 개념을 정립할 수 없었다. 本 論文에서는 函數實現의 도구인 T-gate를 기본 게이트로 구성하고, 이를 이용하여 논리함수를 도출하고 간소화하는 방법을 고찰해 보았으며, 이 방법의 設計例로써 加算器와 D-latch를 실현해 보았다. 그 결과 多値論理函數를 이용하여 組合論理 뿐아니라 順序論理回路를 충분히 설계할 수 있음을 보였다. Since the conventional digital systems have used binary codes, they need a lot of bit-count to represent usual information. Up to now, the research results on multiple valued logic show that logic functions could be implemented with defining various operators, but the definition of simplification could not be derived systematically. In this paper, T- gate, that is a tool to implement logic functions, is constructed with basic gates, and the derivation of logic function using this T-gate and the simplification method are studied. The solution of design examples shows that sequential logic circuits as well as combinational logic could be designed using multiple valued logic functions.