• Korean Journal of Construction Engineering and Management
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• v.15 no.4
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• pp.11-19
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• 2014

Construction VE activities has occupies an important position as a key tool of the project in terms of budget and performance improvements. Reflecting this situation, VE application scope is being expanded than before. Thus, construction projects are required the continued research and development for effective use of construction VE. VE target choice method is the central part in the construction VE work. But, this has a problem with low utilization in practical terms. Accordingly, this study was developed the new methodology(PVTCM) for VE target selection of the construction VE work. Its contents are as follows: First, to analyze practical problem for VE target choice method through VE practical data. Second, to extract the high potential VE object based on the cost model and ideas similarity by excellent VE cases analysis. Third, to implement standardized VE object item by using affinity diagram for each construction type items. This research were conducted to experts interviews for comparison analysis with the cost model as one of a representative target selection method. As a result, proposed method were implemented significantly higher performance in terms of practical effectiveness than conventional method.

• Journal of the Korean Data and Information Science Society
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• v.25 no.3
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• pp.601-609
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• 2014

The most widely used data mining technique for big data analysis is to generate meaningful association rules. This method has been used to find the relationship between set of items based on the association criteria such as support, confidence, lift, etc. Among them, confidence is the most frequently used, but it has the drawback that we can not know the direction of association by it. The attributably pure confidence was developed to compensate for this drawback, but the value was changed by the position of two item sets. In this paper, we propose four symmetrically and attributably pure confidence measures to compensate the shortcomings of confidence and the attributably pure confidence. And then we prove three conditions of interestingness measure by Piatetsky-Shapiro, and comparative studies with confidence, attributably pure confidence, and four symmetrically and attributably pure confidence measures are shown by numerical examples. The results show that the symmetrically and attributably pure confidence measures are better than confidence and the attributably pure confidence. Also the measure NSAPis found to be the best among these four symmetrically and attributably pure confidence measures.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.1
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• pp.409-420
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• 2016

The aim of this study was to develop and validate an instrument to measure the separation anxiety of mothers who use child care facilities. The scale was developed as follows: initial items generated, validity and reliability tests performed, and final items extracted. The initial items were developed through a literature review and interviews. The content validity was verified by five experts. Using a final questionnaire, the data was collected from 204 mothers who used child care facilities with a convenient sampling method. The construct validity was evaluated by item analysis, exploratory factor analysis and confirmatory factor analysis. The results of confirmatory and exploratory factor analyses showed that the separation anxiety consisted of 6 factors: the mother's guilty feelings (5-items), safety of child care facilities (5-items), trust of teachers (5-items), child's anxiety (4-items), interaction anxiety with the child (4-items), and management of child care facilities (3-items). The separation anxiety scale for mothers using child care facilities consisted of 26 items. The reliability of the developed scale was examined. The Cronbach's ${\alpha}$ coefficient was 0.93. These results show that this scale is a valid and reliable instrument for measuring the separation anxiety level of mothers who use child care facilities.

• Korean Journal of Community Nutrition
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• v.13 no.4
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• pp.463-475
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• 2008

This study investigated intake patterns of health functional foods(HFF) in elementary school children and requirements of their parents in the Daejeon area using a questionnaire by 432 parents. Participating parents were composed of female, 83.6% and male, 16.4%. Most of the parents were in their 40's(53.0%) and 30's(45.8%). 47.9% of the children were male and 52.1% were female. The school year of the children was distributed evenly, ranging from the first year to the sixth year. The intake rate of HFF for parents appeared to be 65.3% and for children it appeared to be 63.2%. The primary reason of using HFF to their child was 'For health promotion'(54.4%); the largest reason of non-using HFF was 'Do not feel necessity because is healthy'(48.8%). In regards to purchase place, 'Drugstore' was most selected by 26.1%, while the largest amount of purchase motive was 'Decided by oneself for children's health'(37.7%). The average expense per month was, 'Less than 50 thousand portion'(20.3%). The intake period, 'less than 6 months' was won' for 54.9%. For intake items, 'Vitamin supplementation products' was the largest portion'(20.3%) was indicated. The intake period, less than 6 months' was the most selected by 51.3%. Most people(66.7%) selected '1 kind' of intake item. As for intake effect, 45.4% claimed 'A little help'. In regard to experiencing side effects, 'Is not' was 92.7%, however, diarrhea, nettle rash, nausea etc. were a little. The biggest problem of HFF was 'Falsehood/exaggerative advertisement' as identified by 53.1%. For improvement of the HFF system was, 'Verify by more strict formality' as selected by 55.8%. In regards to experience of nutrition education on HFF, 'Is not' was most selected by 51.0%. The most desirous form of nutrition education was, 'Simple paper material'(31.3%). The most desirous content of nutrition education was, 'nutritional management of classified by life cycle'(37.2%). Therefore, HFF must be used properly to promote the health and growth development of children by acquiring scientific and reasonable information about the ability and usage of the food.

• Journal of Intelligence and Information Systems
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• v.21 no.1
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• pp.15-28
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• 2015

As personal devices and pervasive technologies for interacting with networked objects continue to proliferate, there is an unprecedented world of scattered pieces of contextualized information available. However, the explosive growth and variety of information ironically lead users and service providers to make poor decision. In this situation, recommender systems may be a valuable alternative for dealing with these information overload. But they failed to utilize various types of contextual information. In this study, we suggest a methodology for context-aware recommender systems based on the concept of contextual boundary. First, as we suggest contextual boundary-based profiling which reflects contextual data with proper interpretation and structure, we attempt to solve complexity problem in context-aware recommender systems. Second, in neighbor formation with contextual information, our methodology can be expected to solve sparsity and cold-start problem in traditional recommender systems. Finally, we suggest a methodology about context support score-based recommendation generation. Consequently, our methodology can be first step for expanding application of researches on recommender systems. Moreover, as we suggest a flexible model with consideration of new technological development, it will show high performance regardless of their domains. Therefore, we expect that marketers or service providers can easily adopt according to their technical support.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.3
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• pp.1301-1312
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• 2013

The purpose of this study was to examine the relationship of the critical thinking disposition of paramedic students to their satisfaction with hospital clinical practice and intention of recommendation. As for data analysis, the statistical packages SPSS WIN 20.0 and AMOS 20.0 were employed, and frequency analysis, factor analysis, multiple regression analysis and structural equation modeling were utilized. Besides, Cronbach alpha coefficients were calculated to check item internal consistency. The level of significance was all set at .05. A survey was conducted to collect data from May 12 to August 25, 2012, and the answer sheets from 305 respondents were gathered and analyzed. The critical thinking disposition of the paramedic students was found to have a significant impact on their satisfaction with clinical practice, and the hypothesis about that was accepted. Their critical thinking disposition was found to exert a significant influence on their intention of recommendation as well, and the hypothesis about that was accepted. Finally, their satisfaction with clinical practice was found to affect their intention of recommendation in a significant way, and the hypothesis about that was accepted. The findings of the study suggested that in order to nurture professional and competent paramedics, the content of clinical practice should systematically be managed on a regular basis, and prolonged research efforts should be directed into program development.

• KSBB Journal
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• v.21 no.3
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• pp.212-219
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• 2006

The purpose of this study was to develop a assay system of host cell-derived residual proteins in final pharmaceutical products. Accurate and simple assay system for host cell-derived proteins(HCPs) is very important test item in pharmaceutical qualification control. In this study, methods for quantification of residual HCPs in recombinant anti-GPIIbIIIa antibody were developed using a process-specific immunoligand assay which was based on the Enzyme linked Immunosorbent assay(ELISA) system. The assay had a detection limit of 10.8 ng/ml of HCPs with a product concentration of 1 mg/ml. The practical implication of these results is that the developed ELISA system can be used for HCPs qualification control and this system will be applicable to develop another ELISA system of different antibody drug.

• Hwankyungkyoyuk
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• v.20 no.2
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• pp.93-107
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• 2007

Livestock agriculture plays an essential role Hongsung's economy. Unfortunately, if manure is manage properly it can contaminate water and pollute the air. The purposes of this study were to provide awareness of environmental impact and to design educational programs with sustainable agriculture. I used the specific steps of processes. First, collecting informations through survey on environmental awareness of livestock farmers in Hongsung-gun and recognizing the tendencies. Second, analyzing on educational status of livestock farmers. Third, finding objectives of environmental educational programs. At the end of processes, establishing programs which concerning on environmental education. I used two research methods to gather and analyze the data for developing an environmental education program. The first one is a general survey among 50 livestock farmers from Hongseong-gun, Chungcheongnam-do. The second one is the in-depth interviews with specialists in environmental education and government officials from the central government - the Ministry of Agriculture and Forestry - and the local government - Hongsung-gun who are in charge of livestock farming. I found the following results from this research. First, most livestock farmers replied with 'highly likely' to the five items on the recognition of the necessity of environment preservation, whereas only 38.7% answered with 'likely' to the item on the environmental pollution caused by livestock farming. This shows the tendency that they have less recognition of the reality than necessary. Second, most of the contents among 5 areas(knowledge, recognition, function, attitude, and participation) are the knowledge areas. That results are analyzed training materials for livestock farmers made by Hongsung-gun in 2004 and in 2005 by using goal categories suggested in the Tbilisi Resolution. Third, after analyzing the survey and in-depth interviews, I found that the need for education to recognize the environmental pollution, environmental protection and recycling of the livestock waste. We can summarize conclusions from this research. First, we need on educational program improve the livestock farmers' recognition of importance in environmental protection. Second, it is necessary to develop educational program with the viewpoint that livestock waste is not one of the culprits of the environmental pollution, but a recyclable resource. Third, contents of the environmental education program, should include all the educational elements, namely, knowledge, recognition, attitude, function and participation. The education for livestock farmers requires a research on the environmental education program that can be used with crop farmers who can use the resources recycled from the livestock waste from the viewpoint of recycling resources. This research is focused on the collection and analysis of the basic data for developing an environmental education program and the composition of the program. A further research on the implementation and assessment of this program is required.

• Korean Journal of Food Science and Technology
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• v.46 no.3
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• pp.269-275
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• 2014

We developed a competitive indirect enzyme-linked immunosorbent assay (ciELISA) for determining the buckwheat content in processed foods by using rabbit polyclonal antibodies against buckwheat proteins (BWP). The detection limit of this assay was $0.05-100{\mu}g/mL$. The cross-reactivities of the anti-BWP antibodies toward BWP, buckwheat flour, whole buckwheat, and cereals (wheat flour, whole wheat, black bean, mung bean, red bean, brack rice, brown rice, glutinous rice, white rice, millet, African millet, nonglutinous millet, adlay, and rye) were 100, 17.9, 11.8, and 0%, respectively. Thus, the antibodies were found to be specific for buckwheat only. When buckwheat flour was heated for 30 min, the mean assay recoveries of BWP were 83.0% at $60-90^{\circ}C$ and 44.5% at $100^{\circ}C$. The spike test showed that the mean assay recoveries of buckwheat from raw noodle, boiled noodle, starch gel, and cereal flour were 99.1, 98.6, 81.1, and 104%, respectively. For the 22 commercial items tested, the qualitative coincidence ratio of assay result and the corresponding value indicated on the item's package label was 100%. However, the average quantitative coincidence ratios from 12 commercial items were 31.6%. Thus, the results suggest that ciELISA is an efficient tool to detect buckwheat in processed foods.

• Journal of the Korean Society for Library and Information Science
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• v.49 no.3
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• pp.109-133
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• 2015

The purpose of this study is to develop a model of the TOC (Table of Contents)-based research record system and to comparatively analyze its usability, in order to comprehensively and systematically manage and practically use the various research records generated from the entire process of research and development. For this purpose, the templates for technical recording and the components of each item were proposed to enable technical recording based on TOC, and structured contents were designed to organically connect between these TOC technical records and existing research records. Also, a database logical schema was developed to design a database, and a test collection was constructed on the basis of research records and TOC technical records. Finally, the model of research record system was constructed by designing TOC record search system and user interface including integrated search system. Based on this model, the usability assessment was performed by comparing the existing distributed general systems with the TOC-based research record system. As a result of the comparative analysis of these two systems, the TOC-based research record system showed generally higher utilization of research records than the general systems.