• 대한인간공학회지
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• 제34권3호
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• pp.235-245
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• 2015

Objective: The purpose of this study is to develop visual complexity metrics based on theoretical bases. Background: With the development of IT technologies, drivers process a large amount of information caused by automotive human-machine interface (HMI), such as a cluster, a head-up display, and a center-fascia. In other words, these systems are becoming more complex and dynamic than traditional driving systems. Especially, these changes can lead to the increase of visual demands. Thus, a concept and tool is required to evaluate the complicated systems. Method: We reviewed prior studies in order to analyze the visual complexity. Based on complexity studies and human perceptual characteristics, the dimensions characterizing the visual complexity were determined and defined. Results: Based on a framework and complexity dimensions, a set of metrics for quantifying the visual complexity was developed. Conclusion: We suggest metrics in terms of perceived visual complexity that can evaluate the in-vehicle displays. Application: This study can provide the theoretical bases in order to evaluate complicated systems. In addition, it can quantitatively measure the visual complexity of In-vehicle information system and be helpful to design in terms of preventing risks, such as human error and distraction.

• 정보교육학회논문지
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• 제21권5호
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• pp.527-535
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• 2017

본 연구는 인공지능에 대해 초등학생들이 최근 인식하고 있는 이미지를 분석하였다. 인공지능에 대한 인식과 관련된 이미지 형용사 23쌍을 추출하고 인식과 감성, 능력의 3가지 유형으로 구분하였다. 827명의 초등학생들을 대상으로 검사하여 이미지 요인을 편리성, 기술진보성, 인간친화성, 우려성의 4가지 요인으로 분류하였다. 검사결과 초등학생들은 인공지능이 똑똑하고 새로우며 복잡하지만 신나는 뚜렷한 이미지를 나타냈다. 변인별 비교에서 여학생, 코딩 경험 학생과 고학년이 인공지능에 대해 우려하는 이미지를 갖고 있었다. 반면 인공지능의 관심과 인식이 높은 학생이 인간 친화적이고, 편리하고, 기술 진보적이라는 이미지를 갖고 있었다.

• Journal of Information Technology Applications and Management
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• 제18권3호
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• pp.1-30
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• 2011

InnovVizwas designed and developed anew as avisualization and simulationtool to present innovation and strategy information. The InnovViz system employs two key types of technology, namely mixed reality (MR) and neural network (NN). An experiment was conducted to examine the usability, acceptance and possible adoption of this new system. Participants comprised 4 experts from 4 top performing entrepreneurial firms and 161 master degree students from 2 leading universities. The study used a modified UTAUT model and a cognition and perception model. The results revealed that when the InnovViz was introduced, the key drivers to adoption are Facilitating Conditions (FC) and Voluntary to Use (VOL). Adequate knowledge and sufficient resources were found to strongly affect FC construct. The expert's rating of a firm's innovation and performance was more congruent with senior students with a technology-background than with a finance and accounting-background. InnovViz was seen as providing complex information with an ease of use and usefulness for showing data and assessment. Among the three types of visuals depicted by InnovViz, experts rated their usefulness in descending order as follows: Cube, Tetrahedron and Saturn. Finally, experts found backward simulation to be slightly more useful for assessment than forward simulation.

• 음성과학
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• 제6권
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• pp.197-217
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• 1999

In a noisy class, the acoustic-phonetic features of the teacher and the perceptual features of learners are changed comparison with a quiet environment. Acoustical analyses were carried out on a set of French monosyllables consisting of 17 consonants and three vowel /a, e, i/, produced by 1 male speaker talking in quiet and in 50, 60 and 70 dB SPL of masking noise on headphone. The results of the acoustic analyses showed consistent differences in energy and formant center frequency amplitude of consonants and vowels, $F_1$ frequency of vowel and duration of voiceless stops suggesting the increase of vocal effort. The perceptual experiments in which 18 undergraduate female students learning French served as the subjects, were conducted in quiet and in 50, 60 dB of masking noise. The identification scores on consonants were higher in Lombard speech than in normal speech, suggesting that the speaker's vocal effort is useful to overcome the masking effect of noise. And, with increased noise level, the perceptual response to the French consonants given had a tendency to be complex and the subjective reaction score on the noise using the vocabulary representative of 'unpleasant' sensation to be higher. And, in the point of view on the L2(second language) acquisition, the influence of L1 (first language) on L2 examined in the perceptual result supports the interference theory.

• 영어어문교육
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• 제12권4호
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• pp.1-29
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• 2006

The purpose of this paper is to present a qualitative case study on teaching English as an international language in Korean context. The researcher investigated the implementation process of the new elementary English program from the government to local schools to find out to what extent the symbolic value of English as an international language affect the implementation process of the elementary English program. The research result showed that the elementary teachers shared the different views of the status of English from those of government and the parents, and their differing perception of the role of English constantly affected their implementation efforts. The research findings also revealed that the public's concern of English dominance in Korean educational system resulted in the government's 'comprised curriculum' by lowering the learning goals of the English program. The findings also indicated that the introduction of the elementary English program accelerated English dominance in both teacher and student culture. The question of how to resolve the conflict between acquiring English proficiency and its negative influence on Korean culture remains a complex issue in implementing the new elementary English program.

• 한국보건간호학회지
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• 제31권3호
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• pp.451-463
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• 2017

Purpose: The purpose of this study is to investigate the drinking, stress, and sleep on depression of Korean obese women. Methods: The data of this study were derived from the Sixth Korea National Health and Nutrition Examination Survey (KNHANES VI-3), conducted from January to December 2015 by Korea Centers for Disease Control and Prevention. The study subjects were 935 adult women between 20 and 70 years old (Body Mass Index${\geq}25$). The data were analyzed by the complex sampling design method applying the weights to the IBM SPSS 23.0 program. Results: The study result showed that the frequency of binge drinking, stress perception, sleeping time and depression of Korean obese women showed significant differences according to age group. In the 20-30's, the stress and sleeping time, the 40-50's were drinking at once, the frequency of drinking and stress, and the drinking and stress at 60-70's were significantly associated with an increased risk of depression in obese women. Conclusion: The intervention program for the management of depression in Korean obese women should include the strategies for managing stress and drinking, taking into account differences according to age.

• 한국주거학회논문집
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• 제28권1호
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• pp.9-17
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• 2017

This study investigates and analyzes (1) the status of neighborhood commercial facilities, (2) the location of neighborhood commercial facilities and (3) the users' viewpoint of them for the purpose of establishing the revitalizing factors of neighborhood commercial facilities within permanent rental housing complexes. This study attempts to determine the factors that revitalize neighborhood commercial facilities through quantitative factor analysis based on the analysis of the basic status and purpose of neighborhood commercial facilities using the basic status of permanent rental housing complexes and the quantitative data on neighborhood commercial facilities within these complexes. A survey investigating the residents' perception of neighborhood commercial facilities was conducted to analyze the qualitative aspects neighborhood commercial facilities within permanent rental housing complexes. The factors affecting the revitalization of neighborhood commercial facilities were analyzed by quantifying the actual problems perceived by the users and the elements of their use patterns. From these analysis results, it was found that the factors are not independent from one another, but organically affect one another. It is expected that more meaningful data will be obtained if future studies conduct correlation analysis and weighted value analysis on each factor based on the findings of the present study.

• 대한물리치료과학회지
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• 제5권3호
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• pp.697-706
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• 1998

Motion at the sacroiliac joints(SIJ) has been reported in the medical literature since the mid-19th century. However, for many years authorities vie~d that no movement occurred at the sacroiliac joints and therefore were not clinically significant. Recent contributions from both the basic and clinical sciences caused a change in perception of the role of the sacroiloiac joint in low back pain(LBP). Movement within the sacroiliac joint is now generally recognized, although it is only a small amount. Controversy continues as to the type of motion available and the axes of motion, and continues as to the ability of a clinician to identify a significant sacroiliac dysfunction. Dysfunction of the pelvic girdle is complex and not easily understood. It is common to find serveral dysfunctions within the same pelvic girdle. Each needs to be individually diagnosed and appropriately treated. The diagnostic and therapeutic system designed by Philip E. Greenmam, D. O. allows the operator to deal with any combination of physical findings that are found within the pelvic girdle Restoration of pelvic girdle function within the walking cycle is a major therapeutic goal, particularly from the biomechanical postural-structural model.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1996년도 International Conference on Agricultural Machinery Engineering Proceedings
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• pp.142-159
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• 1996

Engineering of automated tools for the agro-food industries and the rural world activities have to pick up two challenges : to answer the immediate important problems related to the situation of these industries, and to imaging the tools that their professional will need next century. Creating or modifying automated tools in the next few will be made taking into account parameters either technical (environmental protection, health and safety), or social and economical (investment , employment). There will be a strong interaction with disciplines like ecology, medicine, ergonomy, psycho-sociology , etc. , The partners for such a research, tools manufactures and users, should have an early involvement in its content, in order to find rapidly the solution to the drastic problems they are meeting. On a longer term , during the next 20 years , there will be an important evolution of the rural space management and of the food processes. This will imply the emergence of new types of activities and know-how's , with lines of automated tools to be invented and developed , like : micro-system for organic localized tasks -mobile and adaptive equipments highly autonomous for natural space actions - device for perception , decision and control reproducing automatically the expert behaviors of human operators. Design of such automated tools need to overcome technological difficulties like the automation of the expert-decision process, or the management of complex design.

• 한국수학교육학회지시리즈A:수학교육
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• 제57권2호
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• pp.75-92
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• 2018

Based on Perceptions about Mathematics Teachers (PMT) perceived by high school students, measured by 2189 students from Seoul Educational Longitudinal Study 2014 (SELS 2014), latent profile analysis (LPA) identified five distinct types of student groups (positive, partial positive, middle, negative, extreme negative). These student of positive, middle, and negative groups are positive, moderate and negative perceptions about math teachers. Partial positive group generally had a positive perception about mathematics teachers, extremely negative group was very negative about mathematics teachers. Both of these groups had peculiarly inconsistent trends and several anomalies. The Multinomial logistic regression analyses also indicated that individual factors (gender, major, self-concept, resilience, self-assessment, career maturity), school factors (friendship, relationship with school teachers) and parental factors (academic-relationship, emotional-relationship) were significant predictors of PMT profile groups. The Analysis of variance also indicated that mathematics class (attitude, satisfaction and atmosphere), Mathematics achievement were significant predictors of PMT profile groups. The profiling of perceptions about mathematics teachers resulted in enhanced understanding of the complex range of processes students employed. During mathematics class, implementation of smooth interactions and communications between students and teachers added in the teaching and learning of mathematics.