• Journal of the Ergonomics Society of Korea
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• v.20 no.2
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• pp.29-46
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• 2001

This study is about the modeling of comfort feeling structure in indoor environments. To represent the degree of practical comfort feeling level in an environment, we measured elements of human sense and resultant elements of comfort feeling such as coziness, refreshment, and freshness with physical values(temperature, illumination, noise. etc.). The relationships of elements of human sense and elements of comfort feeling were formulated as a fuzzy model. And a hybrid-neural network with three layers were designed where obtained from fuzzy membership function values of the elements of human sense were used as inputs, and given as fuzzy membership function values of resultant elements of comfort feeling were used as outputs. Both kinds of fuzzy membership function values were obtained from physical values. The network was trained by measured data set. The proposed hybrid-neural network were tested and proposed a more realistic model of comfort feeling structure in indoor environments.

• Proceedings of the Korean Information Science Society Conference
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• 2001.04a
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• pp.178-180
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• 2001

인터넷은 가변적인 지연, 손실, 제한된 대역폭과 같은 특성을 가진다. 따라서, 인터넷상에서 전송된 비디오는 품질을 보장받지 못한다. H.261, H.263과 같은 진보된 비디오 압축 표준은 제한된 대역폭의 인터넷에서 비디오 전송을 가능하게 한다. 이러한 압축 표준들은 움직임 예측.보상기법을 사용하여 압축된 프레임들은 시간적인 연관성을 가지게 된다. 따라서, 인터넷에서의 패킷 손실은 해당 프레임에 오류를 발생시킬 뿐만 아니라, 오류는 손실되지 않은 이후의 복원된 프레임으로 전파되어 비디오의 품질을 심각하게 떨어뜨린다. 기존에 연구된 오류 전파 방지 기법에는 NEWPRED, Error Tracking(ET), Intra-refreshment가 있고, 패킷 손실 복구 기법에는 재전송 기법과 FEC등이 있다. 그러나 비디오의 전체적인 품질을 향상시키기 위해서는 오류 전파 방지와 손실 복구가 병행되어야 한다. 따라서 본 논문에서는 인터넷을 통한 대화식 비디오를 전송하는 데 있어서 품질을 향상시키기 위해 손실 자체를 복구할 수 있는 FEC기법에 기반 하면서 참조 프레임 선택(Reference Picture Selection)을 이용하여 패킷 손실에 의한 오류 전파를 방지하는 기법을 제안한다. 실험은 제안된 비디오 오류 제어 기법이 FEC기법과 RPS기법의 장점을 살리면서 단점을 서로 보완하여 비디오의 높은 품질을 유지함을 보인다.

• Journal of Environmental Science International
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• v.28 no.11
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• pp.951-958
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• 2019

Seoullo7017, an elevated linear park, was created to redevelop obsolete road infrastructure as public space, which provides unique landscapes. This study was aimed to evaluate and suggest proper planting design for improving psychological benefits in Seoullo7017. Field survey and simulation experiment were carried out to investigate the user's perception on the landscapes. Many users had negative feelings of the present landscapes in Seoullo7017, due to concrete pavement and simple planting design using big concrete pots. Landscape simulation experiment showed this perception could change depending on planting design. In especial, herb species played an important role in improving the quality of landscape in a linear park and providing positive feelings such as refreshment, warmth and naturalness. This study suggested that planting design in a linear space needs to be focused rather on the planting style and species than the volume of greens.

• Journal of Korean Society for Atmospheric Environment
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• v.26 no.3
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• pp.286-297
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• 2010

This study deals with the effect of pretreatment on the $CO_2$ adsorption capacity of zeolitic adsorbents including a commercial A-type zeolite and cation exchanged adsorbents. The pre-heating could change the intrinsic properties such as specific surface area and adsorption capacity of the adsorbent. As a result of the experiment, the moisture previously filled inside might affect the potential adsorption capacity of the adsorbent, and could be disappeared throughout the heat treatment. An optimum pretreatment temperature for the test adsorbent was found to be $400^{\circ}C$, at which temperature enabled more than 90% refreshment. Precise examination through the TPD test showed that the TSA (Temperature Swing Adsorption) process would be desirable in dry adsorption of $CO_2$.

• Korean Institute of Interior Design Journal
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• v.22 no.6
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• pp.241-250
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• 2013

In contemporary society, spa has become one of the important healing spaces. As the present urban life has been more and more complex and competitive, space of recreation and healing are dramatically increased in terms of its number as well as location. In the past, there were three kinds of spa visitors. The first was the people who visited spas for medical reasons. The second was the people who visited spas for leisure and refreshment. The third was for social gatherings like in the ancient Rome. In present time, these three reasons are mixed together. As the spa program became rich and various, visitors tends to seek an appropriate spa environment that suits their needs. This is the main background for contemporary spa designs. In any case, concept of healing has been always the core element in spa. Light and sense have vital role to make a unique spa design. This paper aims to study different light and sense applications in contemporary spa designs. Specific focus is to find how light and sense in spa designs act to create a healing environment. 4 spa projects built in Europe after 2000 were selected and were analyzed based on the 4 light and sense characteristics. In conclusion, case analysis was summarized to suggest future possibilities.

• Journal of the Korea Society of Computer and Information
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• v.10 no.6 s.38
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• pp.269-278
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• 2005

To justify the economic impacts of the internet access management is a purpose of this paper. Previous researches on economic justification were reviewed and the internet access management system. sniffer, and firewall were implemented to monitor real-time sessions and to record blocked attempts. This paper suggests the impact factors and measurement methods to justify the economic values of the internet access management system. Finally, this paper Proves that the overall impacts of the internet access management system have a Positive value because filtering mechanisms cause users to lose a small number of URLs including useful information and to diminish refreshment but save users from various risk points and enhance labor productivity.

• The Journal of the Korea Contents Association
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• v.5 no.6
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• pp.238-247
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• 2005

This study was to analyse participant's satisfaction according to the visiting purpose and experiences on the exhibition service, and also to suggest guideline for new standard evaluation in the operating exhibition service. The implications are as follows; firstly, surrounding environment showed significantly for merchandising & information participant's, and also stay cost & tourism service showed up general visiting purpose participant's. Secondly, it was showed significantly a place for refreshment, fire equipments, and ventilation & heating/air conditioning on the exhibition service. Third, government & exhibition authorized person should provide best environment through satisfaction factors in the exhibition service.

• Korean Institute of Interior Design Journal
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• v.22 no.4
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• pp.158-166
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• 2013

The purpose of this study is to suggest a direction for eco-friendly healing space design for healthcare facilities in the future. Theoretical review and case study on the concept of sustainable design, spatial expression and behavioral affordance were used as research method. Through these reviews, the 3 elements of the total healing environment -physical, psychological and social- have correspondence with elements of spatial expression; Refuge, Flow, Prospect and Void. And these are related to the eight kinds of Behavioral affordance which are subdivided into WORK&STUDY, REST, CIRCULATION, VISUAL SEQUENCE, SOCIAL EXCHANGE, REFRESHMENT, COMMUNITY and MEDITATION. And the concept of sustainable design consists of 6 principles ; Natural system, People, Place, The cycle of life, Energy & natural resources and Process. Through correlation analysis of behavioral affordance and 6 principles, the result of this study presents that the physical elements of the total healing space was mainly associated with the principles of people, place and the cycle of life. Psychological element was related to principle of natural system, human, place and process. And social element was associated with the principles of human, place and process. According to this analysis, the case study of four low-rise eco-friendly medical facilities was undertaken. Sustainability was evaluated in total healing environmental through this case study.

• Korean journal of food and cookery science
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• v.31 no.2
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• pp.103-111
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• 2015

This study considered the intake patterns and realities of consumptions at bakeries in Korea. Based on a total of 442 customers obtained from empirical research, and self-administrated questionnaires were collected and analyzed by using frequency, chi-square, and one-way ANOVA. Satisfaction with the preferred bakery was shown to be in the order of taste, service, product, and price. A most considered factor in selecting the bakery was taste. The visiting frequency was shown to be the highest for 1~2 times a week. The expense per visit was shown to be won 5,100~10,000 on average. The purchase of refreshment was shown to be the most frequent propose of visiting. The product that was mainly being purchased was the sweet dough bread. It was answered to be difficult because of failing to know to contained materials when purchasing product at bakery. Limitations and future research directions are also discussed in this study.

• Journal of Korean Society of Rural Planning
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• v.6 no.2 s.12
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• pp.59-72
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• 2000

This study examines the rural village planning in North Korea after the Liberation of Korea in 1945. For conducting this study, the creation of rural villages in North Korea were investigated according to the following periods: from the Liberation of Korea to the outbreak of the Korean War, from the end of the Korean War to the 1950's, 1960's, 1970's and 1980's. In this study, major rural villages were also examined and common characteristics of rural village-making in North Korea were analyzed. The following are the findings from this study. In rural village planning, historic revolutionary sites and buildings, where revolutionary achievements of Kim, Ill-Sung and Kim, Jung-Ill were reached, are well preserved and actively created. (2) Rural villages are intended to be a place for ideological education, productive activities and cultural refreshment. (2) In rural village-making, inclined planes are utilized, in consideration of climatic and topographic conditions. (4) The construction of residential areas with modern private houses is considered to be important in the making of socialistic and communist rural communities in North Korea. (5) For economic reasons, existing villages, buildings and facilities are preserved and local building materials are broadly used.