• Journal of Engineering Education Research
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• v.4 no.2
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• pp.3-10
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• 2001

Recently, as the use of the Internet and the Web becomes universal, there has been a great deal of efforts to use it for education. The advantage of a Web-based lecture is that people can take it anywhere at a low cost anytime. Therefore, its prospect is very bright and its potential customers abound. The demand for java programming education using the Web is increasing. This paper compares and analyzes the learning effects of Web-based and traditional lectures in a java programming course, using statistical inference. Based on the analysis result, it concludes that the learning effects of the Web-based lecture are less effective than those of traditional lecture. Also, it recognizes weak points of Web-based lecture in java programming education and proposes a scheme for enhancing Web-based lectures.

• Journal of the East Asian Society of Dietary Life
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• v.8 no.3
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• pp.246-260
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• 1998

The purpose of this study was to investigate perceptions and uses of Korean festive foods by dietitians in elementary school food service. Questionnaires were distributed to 217 dietitians in Seoul (117) and Inchon(100), Statistical data analysis was completed by SAS package program Results were as follows ; 1. Most dietitians (89.8%) who answered the inquiry had knowledge about korean festive foods. 2. Most respondents applied Korean festive foods to their menu planning. 3. More than 85% of respondents used festive foods, especially Ddukguk, Mandu, Yaksik, Yukgaejang, Galbiggim, Tangpyungchae, Patjuk, among the 43 kinds considered for their menu planning. 4 The higher the perception of traditional foods, the more the respondents applied them to their menu planning, especially Injulmi, Shikhae, Yaksik, Bamchoe, Jeongpyun, Kalkuksu, Torantang, Hobakgigim, Namul. 5. Respondents got information sources about traditional foods from books, school, home, massmedia, and etc, in the order. 6. Most respondents (88.3%) wanted to simplify festive foods' cooking method or standardize the recipes. 7. On the necessity of education about festive food for children, 81.5% of respondents and festive foods were considered to be cultivated and developed to uphold the Korean traditional dietary life.

• Journal of Acupuncture Research
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• v.31 no.3
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• pp.19-24
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• 2014

Objectives : The purpose of this study is to investigate the efficacy of the electroacupuncture with different frequency on functional dyspepsia. Methods : We observed 30 functional dyspepsia patients from May, 2013 to June, 2014. This study was randomized and double blinded. The patients were divided into two groups. One group(group A) was treated with 3 Hz electroacupuncture and the other group(group B) was treated with 300 Hz electroacupuncture. We evaluated the treatment effect of each group by using visual analogue scale(VAS) and pressure algometer. Results : 1. Functional dyspepsia was significantly improved in group treated with 3 Hz electroacupuncture. 2. Functional dyspepsia was significantly improved in group treated with 300 Hz electroacupuncture. 3. As a result of evaluation there were no statistical significance between two groups. Conclusion : Both 3 Hz and 300 Hz electroacupuncture has significant effect on functional dyspepsia. But there is no significant difference between 3 Hz and 300 Hz electroacupuncture.

• Korean journal of food and cookery science
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• v.19 no.5
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• pp.581-590
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• 2003

The purpose of this study was to identify the combinations of factors combinations conferring the highest utility of family restaurants to university students, and establish the relative importance of these factors in terms of their contribution to total utility. 196 of 200 questionnaires were utilized for the analysis. (Eds note: to whom were the questionnaires administered) Frequencies, crosstabs, and the conjoint, max. utility, BTL and Logit models, K-means cluster and one-way ANOVA analysesis, and the Friedman test were the statistical methods used for this study. The findings from this study were as follows: 1) the Pearson's R and Kendall's tau statistics (Eds note: these were not mentioned earlier) show that the model (Eds note: which model is this) fits the data well. 2) it was found that of all the respondents, especially the first and third clusters, regarded both the type of food and the price as very important factors. 3) it was found that all the respondents, especially the third cluster, most preferred a family restaurant (design and simulation) that provided less than 6 fusion and traditional foods. The first cluster most preferred family restaurant (design) that provided over 10 traditional and less than 6 ethnic foods. The second cluster most preferred a family restaurant (design and simulation) that provided over 10 traditional foods. 4) the results of the study have provided some insights into the effective types of family restaurant designs that can be successfully developed by those who manage menu variety, quality and type of food, price, and quality of service to university students dining at family restaurants.

• Journal of Oriental Neuropsychiatry
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• v.31 no.4
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• pp.315-327
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• 2020

Objectives: The aim of this study was to review the research trends in the treatment of pharmacopuncture for vascular dementia in Traditional Chinese medicine. Methods: We searched for articles in the China National Knowledge Infrastructure (CNKI) database from January 2000 to August 2020. Results: Among the total 63 articles, 9 articles were selected. All studies were randomized controlled trial studies. The Diagnostic and Statistical Manual of Mental Disorders (DSM) was most frequently used as diagnostic criteria. Effective rate and Activity of Daily Living (ADL) were most commonly used as outcome measurements. Angelica gigantis Radix (當歸), Salvia miltiorrhiza Bunge (丹蔘), and Astragali Radix (黃芪) were the most commonly used ingredients in pharmacopuncture. Joksamni (ST36) and Sinsu (BL23) were the most commonly used acupoints for pharmacopuncture treatment. Based on the Risk of Bias (RoB) of these 9 articles, the overall quality of studies was low. Conclusions: Pharmacopuncture could be considered for the treatment of vascular dementia. In the future, various systematic studies on dementia are needed.

• Ocean Systems Engineering
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• v.4 no.4
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• pp.293-308
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• 2014

Unlike the traditional displacement type vessels, the high speed planing crafts are supported by the lift forces which are highly non-linear. This non-linear phenomenon causes their motions in an irregular seaway to be non-Gaussian. In general, it may not be possible to express the probability distribution of such processes by an analytical formula. Also the process might not be stationary or ergodic in which case the statistical behavior of the motion to be constantly changing with time. Therefore the extreme values of such a process can no longer be calculated using the analytical formulae applicable to Gaussian processes. Since closed form analytical solutions do not exist, recourse is taken to fitting a distribution to the data and estimating the statistical properties of the process from this fitted probability distribution. The peaks over threshold analysis and fitting of the Generalized Pareto Distribution are explored in this paper as an alternative to Weibull, Generalized Gamma and Rayleigh distributions in predicting the short term extreme value of a random process.

• Journal of Electrical Engineering and Technology
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• v.12 no.1
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• pp.420-427
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• 2017

This paper proposes a new method using Wide Line Detector based statistical shape Feature (WLDF) to identify whether or not a tongue is cracked; a cracked tongue is one of the most frequently used visible features for diagnosis in traditional Chinese Medicine (TCM). We first detected a wide line in the tongue image, and then extracted WLDF, such as the maximum length of each detected region, and the ratio between maximum length and the area of the detected region. We trained a binary support vector machine (SVM) based on the WLDF to build a classifier for cracked tongues. We conducted an experiment based on our proposed scheme, using 196 samples of cracked tongues and 245 samples of non-cracked tongues. The results of the experiment indicate that the recognition accuracy of the proposed method is greater than 95%. In addition, we provide an analysis of the results of this experiment with different parameters, demonstrating the feasibility and effectiveness of the proposed scheme.

• The Korean Journal of Applied Statistics
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• v.10 no.1
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• pp.15-27
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• 1997

Randomized block design (RBD) with three replication is very frequently adopted in agricultural experiments of the Rural Development Administration of Korea. Even though it works well in field trials of traditional crops, it may not accomodate trial site conditions and/or experimental environment. In this research report, we deal with two such cases. The first case is for a crop experiment in green houses. In house conditions, RBD may not be appropriate since it cannot reflect two directions of the yield gradient. So, a Latin square design is suggested as an alternative. The second case is for local field experiments of the newly-inbred rice. RBD with three replications is used without doubt for decades, even though the site layout is not appropriately shaped for the design. In this case, we suggest the RBD in two blocks with multiple replicates for control varieties as an alternative. To improve the quality of statistical experimental designs in over one-thousand agricultural trials performed annually in the Rural Development Administration, we need to re-train agricultural researchers on the design and analysis of experiments and call for concerns of Korean statisticians.

• The Korean Journal of Applied Statistics
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• v.22 no.1
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• pp.89-106
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• 2009

There have been many new advances in the development of improved clustering methods for microarray data analysis, but traditional clustering methods are still often used in genomic data analysis, which maY be more due to their conceptual simplicity and their broad usability in commercial software packages than to their intrinsic merits. Thus, it is crucial to assess the performance of each existing method through a comprehensive comparative analysis so as to provide informed guidelines on choosing clustering methods. In this study, we investigated existing clustering methods applied to microarray data in various real scenarios. To this end, we focused on how the various methods differ, and why a particular method does not perform well. We applied both internal and external validation methods to the following eight clustering methods using various simulated data sets and real microarray data sets.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2005.05a
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• pp.723-729
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• 2005

Traditional statistical process control(SPC) applied to discrete part industry in the form of control charts can look for and eliminate assignable causes by process monitoring. On the other hand, engineering process control(EPC) applied to the process industry in the form of feedback control can maintain the process output on the target by continual adjustment of input variable. This study presents controlling and monitoring rules adopted variable sampling interval(VSI) to change sampling intervals in a predetermined fashion on the predicted process levels for integrated EPC and SPC systems. Twelve rules classified by EPC schemes(MMSE, constrained PI, bounded or deadband adjustment policy) and type of sampling interval combined with EWMA chart of SPC are proposed under IMA(1,1) disturbance model and zero-order (responsive) dynamic system. The properties of twelve control rules under three patterns of process change(sudden shift, drift and random shift) are evaluated and discussed through simulation and control rules for integrated VSI EPC and SPC systems are recommended.