• Korean Journal of Environment and Ecology
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• v.38 no.3
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• pp.324-337
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• 2024

Aquatic macrophytes are important factors in determining species diversity and abundance of cladocerans, but the effects of cladocerans on plant species composition or structure have not been fully considered. In South Korea, wetlands and reservoirs that are prone to covering aquatic macrophytes are scattered across the country, so it is necessary to consider on aquatic macrophytes study, when aquatic animals including cladoceran were studied. in this study, the species and abundance of cladocerans community in six microhabitat types are investigated, and based on these results, habitat conservation and efficient management are suggested. The high species numbers and abundance of cladocerans communities were found in mixed plant communities consisting of free-floating, floating-leaved, and submerged plants. The inclusion of submerged plants in plant communities contributes significantly to the complexity of habitat structures, and may increase species and abundance of cladocenran communities. This can be compared to a plant community consisting only of free-floating and floating-leaved plants in the absence of submerged plants, thereby identifying the efficiency of submerged plants. In the mixed plant communities, species diversity was the highest due to the emergence of cladoceran species (Graptoleveris testudinaria, Ilyocryptus spinifer, and Leydigia acanthococcides) absent from other plant communities. The gradual increase in the biomass (g) of submerged plants in the mixed plant communities significantly increased the species numbers and abundance of cladoceran communities (p<0.05). This is strong evidence that the increase of submerged plants in mixed plant communities has a positive effect on efficiency as a habitat for cladocerans. Although submeged plants do not contribute significantly to their landscape/aesthetic value because they are submerged in water, they have the effect of increasing species diversity in terms of biology, so they should be considered important when creating/restoring wetlands.

• Culinary science and hospitality research
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• v.22 no.7
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• pp.203-221
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• 2016

This study aims to analyze the impact of servicescape on the perceived values and brand attitude of coffee customers. In order to archive our research objects, current study employed SPSS 22.0 statistal program. The summary is as follows. First, it was revealed that the servicescape of coffee shops has a positive influence on perceived value. Second, the servicescape of coffee shop has a positive influence on brand attitude. And perceived value of the customer has a positive impact on customer brand attitude. Based on the results, this research has concluded some theoretical suggestions as follows. First, in case of brand coffee shop, it was analyzed that the attractions of interior design color, floor and wall interior, and structure has influenced on the differentiated values of customers. Also, the accessability shows that the brand coffee shops with parking facilities along with the convenience provided by the off-site facilities make customers highly recognize the brand values. In addition, the results found that the factor of service condition becomes a determining factor. Thus, current study will contribute to consider the various elements of service scape when new business develop as well as redesign the previous stores.

• Korea Science and Art Forum
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• v.23
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• pp.347-358
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• 2016

The design of children's hospitals is highly dependent on color schemes. As a space shared together by both adults and children, the design of children's hospitals require color coordination that takes account of the users' characteristics. However, because the majority of prior research on color perception has focused overly on the emotional aspects, there is a necessity for more rational and scientific analyses to identify the characteristics of the visual perception of colors. Adopting this perspective in analyzing the characteristics of the visual perception of colors, this study aims to move beyond the abstract to focus on more objective methods, such as eye-tracking experiments, to examine the characteristics of hospital visitors' visual attention with respect to colors. Visual perception tracking experiment was conducted on the 2 chosen experimental images with a target group made up of adults and children, the following results were found. Firstly, spaces created with the preference colors of the different groups were found to develop a characteristic of developing higher attention. Secondly, observing the common tendencies for attention for adults and children, the highest region for visual concentration was formed towards the middle, as attention progresses to lower stages visually focused area changes in the order of upper-middle, left and right, and lower regions and edge regions show characteristics of not triggering attention Thirdly, it is understood that children's level of attention drops a lot faster than adults when identifying space therefore it is suspected that children need more elaborate color coordination than adults.

• Archives of design research
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• v.15 no.4
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• pp.243-252
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• 2002

The enlarge the range of internet users require user centered design method what understanding of cognitive faculties about users by different age groups. This study aims at analyzing cognitive faculties about visual information on web interface by different age groups, presenting visual perception cognitive process model as an evaluation model and proposing an effective web interface design guideline, On the basis of analyzing cognitive faculties verified what each detail property of visual perception cognitive process model as form, color, space, movement and physiological, physical cognitive faculties had have individual cognitive faculties. As the result visual perception cognitive process model suggested in this study can be used as an evaluation model of web interface and users' cognitive faculties analyzed in visual perception measurement by different age groups can be applied as a web interface design guideline. In addition, this study has a meaning in that it makes a chance to extend a web designer's roles and establish a direction of future research by usability of different age groups.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2003.11a
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• pp.1161-1165
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• 2003

본 연구에서는 인터넷 쇼핑에서 소비자들이 구매결정으로 지연하고 불안해하는 원인을 제품군별로 기존의 지각된 위험과 더불어 새로운 쇼핑방식 이용에 따른 위험 그리고 소비자 특성 등과 관련지어서 알아보았다. 연구결과, 인터넷 쇼핑 시 소비자가 지각하는 위험은 제품군에 따라서 다르게 나타났다. 인터넷 쇼핑몰에서의 쇼핑경험이 없는 소비자들이 경험이 있는 소비자들보다 위험을 더 높게 지각함으로써 더 불안해했다. 쇼핑빈도에 관해서는 제품군에 관계없이 쇼핑빈도가 증가함에 따라서 지각된 위험이 감소하였다. 인터넷쇼핑을 경험한 집단과 무경험 집단을 판별해주는 소비자 특성변수로는 제품군에 관계없이 충동구매경향성과 의견선도로 나타났다. 소비자 특성과 불안 요소인 지각된 위험간의 관련성은 제품군에 따라서 다르게 나타났다. 본 연구는 제품군별로 인터넷쇼핑 경험집단과 무경험 집단 간의 지각된 위험에서의 차이와 두 집단을 판별해주는 소비자 특성변수를 실증적으로 살펴봄으로서 인터넷쇼핑의 이용가능성을 더욱 높일 수 있는 기초 자료를 제공했다는 점에서 의의를 갖는다.

• Science of Emotion and Sensibility
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• v.25 no.1
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• pp.79-90
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• 2022

IThe perception of sub-second duration through the visual sensory system is affected by non-temporal characteristics (factors other than the duration of the stimulus). However, studies have shown that if distance information is abundant and size constancy maintained, the duration of the target is constantly perceived. The current study examined the relationship between size and time perception constancy in a three-dimensional environment with limited distance information. A device was constructed to limit the participants' bilateral and monocular cues. This prevented participants from maintaining size constancy, resulting in size illusions that could not accurately perceive physical size. In Experiment 1, the size of the physical stimulus of reference and test stimuli were the same at all viewing distances. The results suggest that, despite the same physical size, stimuli with close observations were perceived to be greater and lasted longer. In Experiment 2, the retinal size of the reference stimuli and test stimuli was controlled equally at all viewing distances. As a result, although the physical size of the stimuli increased as the observation increased, the perceived size of all the stimuli was the same. Therefore, the duration of the target was constantly perceived at all viewing distances. The results of this study demonstrate that even when distance information is limited, time perception is affected by the perceived size of the object. It also suggests that when rich distance information exists, the duration of the object can be constantly perceived even if the observation distance varies.

• Journal of the Korean Institute of Landscape Architecture
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• v.43 no.1
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• pp.54-68
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• 2015

The purpose of this study was to analyze the effect of environmental perception in neighborhood parks on user's recognition of health improvement. This study used objective field survey data and subjective user survey data at 8 neighborhood parks in Changwon City. According to the results, the perceptions of distance and street environment from home to park were evaluated highly but the perception of water spaces and various attractions within the parks were rated lowly in most of parks. As a result of factor analysis, 23 environmental perception variables were classified into 6 factors such as scenery, comfort, accessibility, activity, convenience and amenity. For the result of regression analysis between environmental perceptions and user's recognition of health improvement based on 6 factors, the recognition of physical health improvement was significantly influenced from environmental perception factors in 4 parks among 8 parks. 'Accessibility' and 'activity' were analyzed as the meaningful factors in 3 parks. Also, recognition of mental health improvement was significantly influenced from environmental perception factors in 5 parks among 8 parks and especially 'accessibility' was showed as the significant factor in 4 parks. The findings from this study can contribute to improve the physical environments of the present parks and can be a basic data for new park development.

• Journal of Families and Better Life
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• v.12 no.2
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• pp.140-152
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• 1994

본 연구는 청소년 자녀를 둔 가정에서 부부가 지각하는 가족체계 유형에 따라 부부간 갈등과 대천방안이 어떠한가를 알아보는 데 그 목적이 있다. 서울시와 근교에 거주하는 532쌍에 부부를 대상으로 조사한결과 부부 양반이 지각한 가족응집성과 가족적응성은 높은 편이고 부인이 남편보다 가족응집성을 더 높게 지각한다. 가족체계 유형은 HH가족이 47.9%, LL가족이 35.1% 이며, 교육수준, 직업, 결혼기간, 종교일치여부 등에 따라 차이를 보인다. 부인이 남편에 비해 갈등정도가 더 높고 신앙에 의지, 외부도움 요청, 감정표출, 회피 등 의 대처방안을 더 많이 사용한다. 가족의 응집성 및 적응성이 높을수록 부부 양방에서 부부간 갈등정도가 낮고 이성적 대처방안을 많이 사용하며 행동표출, 회피 등의 대처방안은 적게 사용한다. 따라서 가족의 응집성과 적응성이 부부 공통적으로 부부간 갈등정도 및 이성적 대처, 행동표출, 회피등의 대처방안과 선형적 관계를 보인다. 또한 가족의 응집성은 부부 공통적으로 감정표출의 대처방안과도 선형적 관계를 보인다. 가족체계 유형중 HH가족과 LL가족에서 역시 부부간 갈등정도와 대처방안 사용이 각각 차이를 보인다.

• Korean Security Journal
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• no.14
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• pp.69-87
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• 2007

Study results on the perception of organization justice and organization member behavior of private security are as below. Primarily, organization justice showed variation according to socio-demographic characteristics which include age, the period the person has stayed in the current workplace, total period of working and monthly income. As for age, in aspect of the perception of distribution justice, the 36 or older age group prevailed, and the 31 to 35 age group prevailed in the perception of procedure justice. So, perception of organization justice increased accordingly with age. According to the period the person has stayed in the current workplace category, showed high levels in the perception of distribution justice and perception of procedure justice in the $3\;{\sim}\;5$ years group. As for total period of working, both perception of distribution justice and the perception of procedure justice proved greatest in the 5 years or more group and according to monthly income, the KRW 1800,000 or more group showed high levels of perception of distribution justice and the perception of procedure justice. Secondly, organization member behavior showed variation according to sociodemographic characteristics. In organization member behavior, loyal behavior increased along with age and inter-personal relationship behavior and altruistic behavior prevailed in the age group 31-35 According to period the person has worked at the current workplace and in case of total period of working, loyal behavior, inter-personal relationship behavior and altruistic behavior proved to be high. As for monthly income, an increase in monthly income resulted in a high figure in loyal behavior, inter-personal relationship behavior and altruistic behavior. Thirdly, after regression analysis of the relationship of the perception of organization justice and organization member behavior, perception of procedure justice was analyzed to have relatively high influence. Therefore, the hypothesis presented in this study was all chosen after the regression analysis results. This shows that the enhancement of organization member behavior can be improved. by enhancing the perception of organization justice. Thus, it can be concluded that if a private guard recognizes his justice, organization member behavior can be enhanced.

• The Journal of the Korea Contents Association
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• v.22 no.9
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• pp.76-84
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• 2022

In this paper, in order to compose the visual perception cognitive function training content that can be linked with the IPUZZLE image block, an interactive content device that utilizes photos and videos of smartphones. Four areas of visual memory, visual continuity, spatial relationship, and visual discrimination were derived and the content operation, application method, and scenario were written. It was intended to continuously give and induce children's desire to participate in training by designing the content image and developing the existing learning terrain visual and perceptual cognitive function training materials in the form of mobile mini-games. Experiential activities were conducted for general children and their guardians using the developed contents, and the results were found to be significant in terms of concentration, effect, and effect compared to basic puzzle toys. It is expected that this thesis will be a meaningful data for the study of cognitive function improvement activities based on digital toys and contents.