• KIEAE Journal
• /
• v.16 no.6
• /
• pp.135-142
• /
• 2016

Purpose: The purposes of this paper are to investigate effects of indoor thermal environment on acoustical perception and effects of acoustics on indoor thermal perception, and to understand basic human perception on indoor environment. Method: Subjective assessment was performed in an indoor environmental chamber with 24 university students. Thermal conditions with PMV -1.53, 0.03, 1.53, 1.83 were simulated with a VRF system, a humidifier, a dehumidifier, and a ventilation system. Six noise sources - Cafe, Fan, Traffic, Birds, Music, Water- with sound levels of 45, 50, 55, 60 dBA were played for 2 minutes in random order. Temperature sensation, temperature preference, humidity sensation, humidity preference, noisiness, loudness, annoyance, and acoustic preference were assessed using bipolar visual analogue scales. The ANOVA and Turkey's post hoc test were used for data analysis. Result: Thermal environmental perceptions were not altered through 2 minutes noise exposure. Acoustical perceptions were altered by thermal conditions. The results were consistent with previous papers, however, the noise exposure time should be carefully considered for further development.

• Fashion & Textile Research Journal
• /
• v.15 no.1
• /
• pp.22-34
• /
• 2013

This study investigates the perception of conflict and satisfaction factors by salesperson of department store middle management system. This study was performed through a qualitative research method. An in-depth interview was given to 14 fashion shop managers and salespeople who have three or more years of department store work experience. The results show two categories of factors(factors according to power sources and factors according to job environment) that influence the perception of department store middle management system by fashion product salesperson. The factors(according to power sources) were classified into coercive power, reward power, expert/informational power, and referent power. The factors(according to job environment) were classified into physical environment, work conditions, and regulations.

• Transactions of the Korean Society of Automotive Engineers
• /
• v.9 no.3
• /
• pp.121-130
• /
• 2001

This paper addresses a method for evaluating perceived velocities of the graphic module in a driving simulator. The major two graphic factors associated with perceived velocities are analyzed: they are the lateral distance between a virtual driver and an array of environmental objects and the textural density of these objects. A graphical representation of a vehicle and its surrounding environment are constructed by employing a three-dimensional tool, Pro/ENGINEER and a virtual environment, dVISE. Using the developed virtual driving environment, experiments have been carried out to formulate the relationship between velocity perception and each factor. Based on the experimental results, nonlinear regression equations are derived to show how the perceived velocities are dependent upon distance/density.

• Korean Journal of Agricultural Science
• /
• v.43 no.2
• /
• pp.288-297
• /
• 2016

This study is to evaluate the 'Private antidesertification afforestation support project' in the Kubuqi Desert through a survey of local residents and interviews with relevant personnel. Based on this survey, gender, age, and occupational differences in perception of the project were analyzed. In addition, the project was evaluated based on the OECD/DAC criteria using survey results and in-depth interviews with the relevant personnel. The survey analysis results show that the participants answered most of the questions positively, claiming that they were receiving social, economic, and environmental benefits through the project. However, most of the participants answered negatively to questions regarding the understanding of the project and relevant information. Gender differences in perception of the project were not found, whereas, age and occupational differences in perception were found. Older age groups showed higher levels of perception. Participants in the agro-livestock industry and office workers showed higher levels of perception compared to middle/high school students, the unemployed and college students. Teenagers, in particular, showed the lowest level of perception of the project, and thus, promotional activities targeting teenagers should be conducted in the future. Results of this evaluation of the project based on the OECD/DAC's five criteria (relevance, effectiveness, efficiency, impact, and sustainability) showed that the project operated effectively for the most part.

• International journal of advanced smart convergence
• /
• v.8 no.3
• /
• pp.138-144
• /
• 2019

Understanding teachers in the early childhood education is crucial as it can not only affect the quality of children's education but also cause many critical problems such as child abuse. A significant amount of research work has been made on the use of robots in childcare classrooms. The finding from the research has shown many advantages such as the improvement of learning performance, social/emotional skills, creativity, concentration period, physical and cognitive development. However, most of the study has been implemented at the K-12 classrooms but not much has been focused on the education at the early childhood classrooms. Importantly, it is very crucial to understand teachers' perception, demands and technical competence about the new teaching tool, in order to maximize its educational effect. This paper investigates some critical issues existing in both teaching and managing in the early childhood education. It will also explore teachers' perceptions and expectations on the use of robots to identify some dilemmas that exist in their working and teaching environment. A survey study was conducted with 119 early childhood educators in South Korea. It analyzed the educators' perception of using robots to improve their teaching performance and to make better outcomes for children, investigated job satisfaction and difficulties that they have in the current work environment. This paper concludes with several guidelines for integrating and setting robotics in the early childhood environment, in order to engender productive outcomes for the future early childhood education.

• Journal of the Korean housing association
• /
• v.8 no.3
• /
• pp.17-27
• /
• 1997

This thesis is concerned with a study of spatial characteristics of Korean traditional architecture in visual perception. This study, therefore has been made of principles of visual perception. range of visual perception in architectural environment, spatial characteristics of Korean traditional architecture, and example case studies are exhibited. The architectural compositional principles of parts selected in process of study could be selected to facilitate comparison with the perceptual psychology. The result of this study can be used to construct Korean architectural plans. elevations. form and spatial and order pertinent to human understandings and existances on the priority of wholeness and the relationship of parts to visual perception.

• Journal of Science of Art and Design
• /
• v.13 no.1
• /
• pp.11-21
• /
• 2008

It seems to be difficult to bridge between human and nature. All depictions of nature are not necessarily reflections of reality. Thoughts are projected into nature, then nature will reflect us. The world is composed of natural and cultural environment. There are differences between depiction of nature based on correspondence and construction of world. Environmental aesthetics is an emerging field of study that focuses on nature's aesthetic value as well as on its ethical and environmental implications. Allen Carlson, a pioneer in environmental aesthetics, provides challenges as well as a wealth of resources for those who would appropriate his ideas in the service of environmental protection. Carlson's positive aesthetics, his focus on the functionality of human environments, and his integration of aesthetics and ethics have great import for those seeking to use aesthetics to assist in addressing environmental controversies. Environmental ethics would benefit from taking environmental aesthetics more seriously. Environmental aesthetics is an emerging discipline that explores the meaning and influence of environmental perception and experience on human life. Arguing for the idea that environment is not merely a setting for people but fully integrated and continuous with us, Arnold Berleant explores the aesthetic dimensions of the human-environment continuum in both theoretical terms and concrete situations. Aesthetic experience is always contextual. The aesthetic aspect of any human habitat is an essential part of its desirability. The aesthetic perception of environment shows us the reciprocity that constitutes both person and place. The genuine beauty lies in the coexistence and harmony with natural environment.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.25 no.8
• /
• pp.1067-1073
• /
• 2021

Participants in the virtual environment will have an immersive and memorable perceived experience through interacting with virtual objects. Recently, commercial virtual reality technologies have released simple and cost-effective smartphone-based head-mounted displays (HMD) and high-quality wide field-of-view (FOV) HMDs. However, due to the vergence-accommodation conflict structure of HMD and the learned cognition mechanism in real, side effects such as dizziness and nausea remain challenging to overcome. This study focuses on consistent size perception among various cognitive difference factors, which are essential for interaction with virtual objects. We verified whether the visual angle, which affects the size perception of an object in real, is also the main factor in the virtual environment. Our experiments derived the relation between the visual angle and the environmental components, shadow, and grid, which help perceive a virtual object. As a result of the regression analysis, we presented that in the small FOV HMD environment, the visual angle affects size perception, and the relation between the shadow and the grid is statistically significant.

• Korean Journal of Cognitive Science
• /
• v.28 no.3
• /
• pp.133-147
• /
• 2017

Human perception is an outcome of the influence of various factors rather than objective reflection of external environment. Among the factors, action-specific perception is a phenomenon where perception changes in terms of one's ability to act on the environment. Previous research reported contradictory results regarding whether action-specific perception occurs during performance or after performance due to memory distortion or knowledge about performance results. In this research, we conducted three experiments to determine when action-specific perception occurs. Participants threw darts at different distances and reported perceived size of targets in each trial. The results showed that, in Experiments 1 and 2, participants perceived targets larger when they hit than missed the targets, and the effect was greater when the targets were not visible after each throw. However, because participants had knowledge about the results of their throws, there could have been bias in participants' responses. In Experiment 3, where this possibility was excluded, we also obtained action-specific perception, and therefore concluded that action-specific perception occurs during but not after task performance.

• Korean Journal of Environment and Ecology
• /
• v.17 no.1
• /
• pp.35-43
• /
• 2003

A purpose of this study was to compare visitors' and managers' perception to park use and management attributes f3r developing the effective park management strategies. The questionnaire surveys with 401 samples in visitor and 67 samples in manager group were employed at three different parks(Chiaksan National Park, Odaesan National Park, and Seolaksan National Park) in Kwangwon area, Korea. As the results from comparing perception, some differences of perception about environment damage, damage types, and causes of damage exist between visitor and manager group. In addition, significant perception differences in some use and management attributes, such as trash problem, natural and cultural resource conditions, touting, sanitation and information facility conditions, were found between both groups.