• Survey Research
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• v.1 no.1
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• pp.73-108
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• 2000

This study investigates methodological implications of cyberspace and information technology for online survey research Online survey method provides useful methodological tools for collecting empirical data for the study of cyberspace, In terms of sampling frame , selection method, and questionnaire from four major types of the online survey research can be found: member survey visitor survey e-mail survey and the electronic survey. Online survey research with sample design(population specification error. sampling frame error, selection error) measurement (measurement instrument bias system-related processing error, nonrespone, and response bias) and research ethics (privacy and netiquette) pose important methodological issues for the survey. The realization of the technological possibilities of online survey will be possible only through a right consideration of these issues.

• Korean Institute of Interior Design Journal
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• v.22 no.1
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• pp.307-317
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• 2013

Elementary school's physical environment is critical to lower grade students. Among the many physical conditions, Toilet, which belongs to health and sanitation category is very important to those who start school for the first time. The purpose of this study is for suggesting the guidelines of toilet design reflecting psychological and behavioral aspects of lower grade students. The research was executed as follows. Firstly, focused survey groups were carefully chosen. Five elementary schools were selected, being all open after 2005 under Seoul Gangseo District Office of Education. Secondly, field study was executed to find out toilet usage, during the period between April to June 2012, by visiting schools to see basic facilities, taking pictures and making actual measurement in each toilets. The architectural analysis was focused on location, moving line, actual size and space zoning, while the interior analysis being on finishing materials and the design of sanitary equipments. And the design elements such as color, lighting fixture, art works or signage were analysed, too. Finally, questionnaire survey was done to find out preferences of lower grade students. As a result, the guidelines of toilet design can be divided into two main parts, Physical and Psychological. For the Physical part, it is necessary for related facilities to be concentrated in order to give easy access. In addition, good ventilation, better lighting and to install sanitary equipments ergonomically are required. Furthermore, safe and clean maintenance should be considered. Psychologically, the design should be directed for making lower grade students come to toilets with comfort and more pleasantly.

• Korean Institute of Interior Design Journal
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• v.24 no.5
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• pp.51-61
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• 2015

The purposes of this study were to examine the characteristics of elements composing the cultural identity of Chinese architectural and spatial design, and to analyze the expression characteristics and influencing factors of contemporary restaurant design. With these purposes, first, this study reviewed related literature in order to find the characteristics of tangible elements observed in intangible elements and space expression characteristics forming the cultural identity of China. Second, this study conducted a case study in order to understand the expression characteristics of the design of Chinese restaurants in Shanghai and to find factors influencing the design. In order to sample the subjects of the case study, the researcher selected 18 restaurants that were recommended repeatedly in books on Chinese restaurants and tourism and major Internet sites or highly evaluated by visitors, and then choose 15 of them that were found to be fit for the purpose of the survey. According to the result of the survey, the restaurants were largely grouped by type into 10 cases of fine dining, 3 of middle-class casual dining, 1 of fast food, and 1 of luxury tea house serving traditional tea and snacks. Of these restaurants, 46.7% (7 cases) were of CM-CM-CM type, namely, using contemporary simple elements in all of external spaces, indoor spaces, and decorations, 20% (3 cases) were of CM-CM-CT type, using contemporary and simple external and indoor spaces, and traditional furniture or articles, 20% (3 cases) were of CT-CM-CT type, using traditional external spaces such as traditional buildings, contemporary simple finishing of indoor spaces, and traditional articles such as palace lanterns and traditional doors and windows, and 13.3% (2 cases) were of CT-CT-CT type, using traditional elements in their original forms in general. Through this research and survey, cultural identity showing Chinese traditions observed in the expression characteristics of restaurant spatial designs was confirmed, and it was also found that the identity was underlain by ideologies, values, lifestyles, etc. that had long accumulated through the long history of the country and exerted a great influence.

• Journal of the Korean Statistical Society
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• v.32 no.2
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• pp.175-191
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• 2003

An empirical Bayesian approach is discussed for estimation of characteristics from the two-way balanced rotation sampling design which includes U.S. Current Population Survey and Canadian Labor Force Survey as special cases. An empirical Bayesian estimator is derived for monthly effect under presence of two types of biases and correlations It is shown that the marginal distribution of observation provides more general correlation structure than that frequentist has assumed. Consistent estimators are derived for hyper-parameters in Normal priors.

• Proceedings of the Korea Society of Design Studies Conference
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• 2000.11a
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• pp.110-111
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• 2000

급속한 디지털화는 디자인 환경을 전반적으로 변화시키고 있다. 디지털 환경은 디자인 대상을 다양화, 다변화시킬 뿐만 아니라 디자인 과정 역시 디지털화 시켜 프로세스의 효율성을 극대화시킨다. 이런 환경 속에서 디자인 프로세스는 디지털 환경을 적극 활용하여 보다 효율적이고 효과적인 방향으로 나가려는 노력을 기울이고 있다. (중략)

• Communications for Statistical Applications and Methods
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• v.8 no.3
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• pp.739-751
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• 2001

In this paper, a sample design is studied for 2000 forestry management survey of five types forestry , tree felling, gathering of pine mushroom, growing of nut trees, growing of wild flowers, and lumbering industry. We introduce population stratification and a modified stratified cut-off sampling which deal with determination of sample size, sample allocation, and estimation of total and variance of estimator. Substitution of sample units and imputation of nonresponse units are discussed for reducing the nonsampling errors.

• Proceedings of the Safety Management and Science Conference
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• 2011.04a
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• pp.701-705
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• 2011

The paper reviews Cronbaha's coefficient to measure a single source of error. On the contrary to classical measurement theory, the generalizability study can be used in the social survey design to calculate Generalizability Index (GI) and Dependability Index (DI) for measuring multiple sources of errors of behavior evaluation. The study proposes application guidelines to implement R:($A{\times}B$) mixed models that are composed of random factor and fixed factor.

• Journal of the Korean Statistical Society
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• v.9 no.2
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• pp.213-217
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• 1980

This paper aimed at studying an efficient sampling design of the survey for non-consignment fishery products including both marine fisheries and seaculture. An analysis was done on the relationship between precision and sample size. On the basis of the analysis, the sample size was determined to be 1,080 fishery house holds with the expected precision of 4%-5%. The molluscs and seaculture were recognized to be correlated with the non-consignment products. An attempt was made to investigate the coverage of the fish kinds by the sample about 100 fish kinds were found in the 80 selected sample villages, whereas the population includes about 120 in total. This shows that the sample represents the population with satisfaction.

• Journal of The Korea Institute of Healthcare Architecture
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• v.19 no.1
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• pp.47-57
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• 2013

Purpose: The purpose of this study is to provide reference points for the improvement work of churches' convenience facilities for the elderly. To do this, the study generates survey results, showing that the perception to significance of churches' convenience facilities is different among survey constituents. Method: The survey method was utilized. The study population for survey includes the aged believer over 65 years old, pastors, and architecture and/or interior design experts. The questionnaire was devised while consulting existing regulations regarding convenience facilities in general. Results: It is found that the perception to significance of installation standards for convenience facilities is different among survey constituents. Specifically, while the older believer group is perceived that installation standards for the small group meeting room of 'other facility' is comparatively more important, the pastor group and the expert group perceive that the 'intermediate facility' and 'inner facility' are more important. Implications: Participants involved in an improvement project of churches' convenience facilities may have a different perception about their importance due mainly to the degree of usage and the difference of perspectives. This study, therefore, can be used as a reference point for prioritizing improvement works of churches' convenience facilities for the elderly.

• Journal of the Korean Solar Energy Society
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• v.25 no.2
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• pp.63-69
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• 2005

This study is the survey of a transition procedure of building services systems(heat source, HVAC, water supply) through the survey of existing office buildings, building design documents. The preference & major consideration of system selection is the engineer's opinions. The results of this survey can be used in selection of building services system design. In this survey, "Hot & cold water generator system" and "single duct CAV+FCU system", "Elevated water tank system" are selected. The most important consideration in system selection is the energy saving in heat source system, and comfort in HVAC system, and water pressure in water supply system. They prefer "steam boiler+absorption chiller system" for heat source system, "steam boiler+ice thermal storage system", "hot & cold water generator system", "district heating+absorption chiller system" : "single duct CAV+FCU system" and "single duct VAV+convector system" for HVAC system: and "booster pump system" for water supply system.