• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.32 no.6D
• /
• pp.565-569
• /
• 2012

This study selected blind spot areas for public transportation in four metropolitan cities including Busan, Daegue, Gwangju, and Daejeon. Then this study developed a nested logit model and analyzed the changes of mode choice behaviors after adopting rapid transit system using stated preference(SP) survey. As the study results, blind spot areas have more potential public transportation demand and tendency to shift to public transportation from autos than built-up areas. This study results can be utilized to evaluate demand changes for new rapid transit system in a circular expressway and an arterial highway connecting CBD and surrounding areas. The study results also can be utilized to analyze the potential public transportation demand in the surrounding areas.

• The Journal of the Korea Contents Association
• /
• v.10 no.6
• /
• pp.18-26
• /
• 2010

Many personalized services that provide users with adaptive information according to users' preferences have been researched and developed. Push services are especially expected to be more economic impact because push services satisfy user's potential needs even if the user does not require anything. In this paper, we propose Semantic Web approach in order to enhance the performance of push services. Our approach provides infrastructure to recommend contents based on semantic association by enabling information of contents and user preferences to be described on service-specific ontologies that reflect features of each service. In addition, our approach can recommend users with adaptive information based on information represented in our description model. Our approach enables information of contents and user preferences to be described with rich expressiveness, and it provides semantic interoperability.

• Journal of Convergence for Information Technology
• /
• v.11 no.10
• /
• pp.250-257
• /
• 2021

The author tried to verify the mediating effect of the variable, perceived behavioral control, in the relationship between the independent variables(cosmetics-related variables, consumer's preference, advice & inducement), and the dependent variable(purchasing behavior), through AMOS structural equation modeling. As a result of analyzing the mediating effect in the impact relationship between latent variables, it was found that PBC(perceived behavior control) plays a mediating role in the impact relationship between CQ(cosmetics quality) and PB(purchasing behavior). Author found that the higher the quality of cosmetics and the greater the perceived behavior control in domestic cosmetics purchasing behavior, the more likely it will lead to purchasing behavior. In this context, while efforts are being made to improve cosmetic quality, measures to increase perceived behavior control, which can be said to be autonomy in purchasing behavior, should be sought.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.16 no.6
• /
• pp.1279-1286
• /
• 2021

This study suggests the user's needs for a smart parking service that enables parking lot search and advance reservation service, and is a study on the user's preference selection model related to fees (reservation fee, penalty fee), etc. Two types of user preference models in the form of logit models were constructed by composing a response questionnaire for smart parking service. The first is a model for selecting a smart parking lot, which suggests a situation in which the probability of selection is higher than that of a general parking lot in the relationship between usage fee and cost. The second is a parking ticket reservation discount selection model, and the smart parking service selection probability was analyzed through the relationship model between the reservation amount and the penalty. It can be used as a design requirement that enables sophisticated and various types of smart parking service considering users' preferences.

• Current Research on Agriculture and Life Sciences
• /
• v.32 no.4
• /
• pp.225-230
• /
• 2014

This study investigates the effect of organic certification of apples on consumer preference in China as a way to support the expanded export of Korean apples to China. A choice experiment was designed to analyze the apple consumption in China. A total of 298 Chinese consumers answered the survey, and multinomial logit models were used to analyze the results. Organic certification was identified as an important determinant of consumer preference for apples in China, affecting both the evaluation and choice of country of origin. The results also indicated that Korean organic certification significantly increased the probability of Chinese consumers choosing Korean apples. Thus, organic certification by the Korean government should be strengthened to promote apple exports to China, plus the results of this study may provide useful information to promote agricultural product exports and improve the organic certification system.

• Korean journal of applied entomology
• /
• v.62 no.3
• /
• pp.117-124
• /
• 2023

The management of Ricania spp. is difficult because this pest has a wide host range and diverse habitats such as agricultural, suburban, urban, and forested areas. However, the researches for Ricania spp. management have been focused on only agricultural crops. Thus, it is required to determine the arboreal host preference of Ricania spp. at the surrounding areas of the farms to increase its management efficiency. To determine its host preference at arboreal plants, we reviewed the previous studies and investigated the densities of Ricania spp. at woody plants with high ecological importance but insufficiently studied. This study identified 120 species in 53 families of arboreal hosts of Ricania spp. Only Cornus officinalis and Styrax japonicus were preferred by all developmental stages of Ricania spp. The host preference of Ricania spp. was changed according to its developmental stages. This phenomenon would be caused by that each developmental stage of Ricania spp. would prefer different parts of woody plant, and require different nutrients for its survivor and reproduction. These results of this study could be helpful to make a plan of comprehensive management strategies for Ricania spp.

• Journal of the Korean Institute of Landscape Architecture
• /
• v.17 no.2
• /
• pp.47-56
• /
• 1989

본 연구는 Homans의 Social Exchange Theory에 근거하여 특정 공원의 매력도(attractiveness)와 핵심시설 (core facility), 핵심recreational program과의 관계를 규명하였다. 즉, 공원의 매력도를 일정 행동에 대한 가치로, 특정 공원의 방문을 개개인의 행동선택으로 생각하여 가설을 제시하고 검증을 한 결과 핵심시설과 핵심 recreational program이 증가함에 따라서 공원의 매력도가 증가함을 보이고 있다. 또한 설정된 모델은 두 변수로 특정공원의 매력도를 65% 설명하고 있다. 이 결과는 특정 지역의 자연조건과, 현재 또는 잠재적 이용자들의 선호를 바탕으로 핵심시설과 핵심recreational program을 도시공원이 제공해 주면, 그 공원의 매력도는 증가하며 따라서 공원시 만족도와 이용 빈도를 늘릴 수 있다는 구체적인 증거를 제시하고 있다.

• 시스템엔지니어링워크숍
• /
• s.6
• /
• pp.86-93
• /
• 2005

본 논문은 KT-1 수출용 항공기(XKT-1,이하 XKT-1이라 함) 조종실배열 요소에 대한 정성적 ,정량적 반영 사항을 기술한 것으로,KT-1 동급항공기 조종실의 전형적 배열, 최신 항공기 현황과 더불어 조종실배열의 향후 추세에 관하여 고찰하였으며, 이를 바탕으로 여러 국가들의 요구사항 및 추세에 맞는 XKT-1 조종실배열의 특징과 설계결과를 나타내었다. XKT-1의 조종실배열은 잠재 고객이 선호하는 계기 및 시현기 등이 Human Engineering에 의거 최적의 배열이 되었으며 무엇보다 경쟁기종 대비 전방시야가 우수한 것으로 판명되었다.

• Korean Journal of Environmental Biology
• /
• v.35 no.4
• /
• pp.452-460
• /
• 2017

Rice fields are important stopover sites for the conservation of shorebirds during long-distance migration. These fields serve as food sources providing energy for the next leg of the journey. Shorebirds are able to change their preferred food source at stopover sites. However, the type and distribution of food resources remain unknown for the shorebirds in the Republic of Korea. Therefore, we studied the type and distribution pattern of food resource (macroinvertebrates, remaining rice, and other seeds) for shorebirds in the rice fields. We have identified potential and actual food sources for shorebirds in the rice fields. The potential food sources were collected by using a core-sampling method and the actual food source was ascertained by observational analysis. As a result, a total 19 species of benthic macroinvertebrates in 15 families were recorded as potential food sources. A total of 9 families in 9 orders of benthic macroinvertebrates known to be actual food sources were also recorded during the study period, including loaches, and a tuber of sea club rush. Also, the distribution of the food source depended on soil conditions generated by cultivation such as plowing, harrowing, and the use of pesticides. In the present study, we identified the type and distribution of food sources for shorebirds. This information can be used as essential primary baseline data for conservation of shorebirds using the rice fields of the Republic of Korea.

• Korean Journal of Environment and Ecology
• /
• v.28 no.5
• /
• pp.597-606
• /
• 2014

The preference of general adult on the forest and forest road was surveyed and analyzed for the development of forest therapy program. This study was conducted for the purpose of providing a basis for the development of more targeted-and differentiated-forest therapy program by analyzing the preference of general adult on the forest and forest road from 19 April 2014 to 30 June 2014 through on-line survey. The sample group of 613 adults has been used in practical analysis. Using SPSS 21.0, We looked at the preference differences of the forest and forest road according to the demographic characteristics(sex, age, education level, occupation and monthly income) through descriptive statistics analysis, frequency analysis, cross tabulation analysis, multiple response analysis. The seasonal preference was spring, autumn, any season, summer, winter in order and there was a significant difference according to one's sex, age, occupation and monthly income. There was a significant difference in the configuration of forest according to one's monthly income. The favorite type of forest as a place of forest healing program was natural recreational forest, healing forest, urban forest, park, school forest in order. There was no significant difference in the favorite forest type regarding to the distance to the healing place from one's residence in all cases. There was a significant difference in the type of forest according to one's monthly income. The most favorite configuration of forest road was gentle sloped road. Once walking into the forest for the purpose of healing, the favorite forest road length was 1.5~3 km, less then 1.5 km, more than 3 km in order and there was a significant difference in preference according to one's sex, age, education level and monthly income. We believe that the healing program should be differentiated from the general form of it according to one's sex, age, education level, occupation and monthly income as a result of this investigation of preference of general adult on the forest and forest road for the development of forest therapy program. In particular, we believe that the differentiated program should be offered according to one's age. We expect this analysis to be used as a basis for the development of forest therapy program.