• Education of Primary School Mathematics
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• v.13 no.2
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• pp.99-111
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• 2010

This study is on a supplementary textbook, a mathematics activity book which is first introduced in the fifth curriculum. There was three revision of mathematics activity book with the change of curriculum. On this study, the aim of introducing mathematics activity book, the direction of development, the organization system and the relation with curriculum were analyzed systematically on the basis of literature consideration.

• Structural Engineering and Mechanics
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• v.57 no.6
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• pp.969-988
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• 2016

Vibration analysis of the beams on elastic foundation has gained the great interest of many researchers. In the literature, there are many studies that focus on the free vibration analysis of the beams on one or two parameter elastic foundations. On the other hand, there are no sufficient studies especially focus on the comparison of dynamic response including the bending moment and shear force of the beams resting on Winkler and two parameter foundations. In this study, dynamic response of the axially loaded Timoshenko beams resting on modified Vlasov type elastic soil was investigated by using the separation of variables method. Governing equations were obtained by assuming that the material had linear elastic behaviour and mass of the beam was distributed along its length. Numerical analysis were provided and presented in figures to find out the differences between the modified Vlasov model and conventional Winkler type foundation. Furthermore, the effect of shear deformation of elastic soil on the dynamic response of the beam was investigated.

• Advances in Computational Design
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• v.5 no.3
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• pp.209-231
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• 2020

In order to evaluate the performance of three heuristic optimization algorithms, namely, simulated annealing (SA), genetic algorithm (GA) and particle swarm optimization (PSO) for optimal stacking sequence of laminated composite plates with respect to critical buckling load and non-dimensional natural frequencies, a multi-objective optimization procedure is developed using the weighted summation method. Classical lamination theory and first order shear deformation theory are employed for critical buckling load and natural frequency computations respectively. The analytical critical buckling load and finite element calculation schemes for natural frequencies are validated through the results obtained from literature. The comparative study takes into consideration solution and computational time parameters of the three algorithms in the statistical evaluation scheme. The results indicate that particle swarm optimization (PSO) considerably outperforms the remaining two methods for the special problem considered in the study.

• Asian Pacific Journal of Cancer Prevention
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• v.16 no.15
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• pp.6177-6186
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• 2015

Sensitivity and specificity are the two most important indicators in selection of medical imaging devices for cancer screening. Breast images taken by conventional or digital mammography, ultrasound, MRI and optical mammography were collected from 2,143,852 patients. They were then studied and compared for sensitivity and specificity results. Optical mammography had the highest sensitivity (p<0.001 and p<0.006) except with MRI. Digital mammography had the highest specificity for breast cancer imaging. A comparison of specificity between digital mammography and optical mammography was significant (p<0.021). If two or more breast diagnostic imaging tests are requested the overall sensitivity and specificity will increase. In this literature review study patients at high-risk of breast cancer were studied beside normal or sensitive women. The image modality performance of each breast test was compared for each.

• Journal of architectural history
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• v.25 no.3
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• pp.47-62
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• 2016

The purpose of this study is to clarify the characteristics of Zen Buddhist temple's building composition of the Northern Song dynasty, through the analysis of literature historical material, such as Seonwon chenggyu(禪苑淸規), Cham cheontae odaesan gi(參天台五臺山記) and so on. The building composition method of Zen Buddhist temple in Northern Song dynasty, which grasped from the Seonwon chenggyu, reflects the actual situation of the temples in that time. And it was ascertained that, the Zen Buddhist temple's building composition of the Northern Song dynasty was basically same to that of Southern Song dynasty. And the comparative analysis was attempted between Zen Buddhist temples and that of other Buddhism sect described in Cham cheontae odaesan gi. From this analysis, the common features as Buddhism temple and the characteristics of building composition as Zen Buddhist temple was clarified.

• Journal of the Korean housing association
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• v.9 no.3
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• pp.97-105
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• 1998

Recent mass construction of high-rise apartments across the country are questionable whether this housing type is appropriate for Korean families as one of housing alternatives. Therefore, cross-cultural analysis is needed for the evaluation of high-rise apartment living. The purpose of this study is to identify factors related to the evaluation of residential satisfaction, and to examine the differences of satisfaction between Korean and American high-rise resident groups on these factors and personal characteristics. The review of literature and factor analysis identified six important environmental factors. 413 subjects were selected from the major two resident groups in major U.S. cities, and Seoul, Korea. An examination by major factors indicated that five except for neighborhood environmental qualities were significant relationship. It was also found that personal characteristics of these two groups were significantly different. Multiple-regression analysis found that both physical quality of dwelling unit and management/maintenance were important predictors of residential satisfaction.

• Computers and Concrete
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• v.26 no.5
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• pp.397-409
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• 2020

The current study targets to estimate the contribution of the end-anchored FRP composites in resisting shear force using a soft computing tool i.e., adaptive neuro-fuzzy inference system (ANFIS). A total of 107 sets of data accumulated from literature was utilized for the development and evaluation of the current ANFIS model. A comparative analysis between the ANFIS predictions and the acquired experimental results has shown that the ANFIS predictions are in very good agreement with that of experimental ones. Additionally, the accuracy of the current ANFIS model has been weighed up against the estimates of nine widely adopted design guidelines. Based on various statistical parameters, it has been deduced that the effectiveness of the current ANFIS model is better than the considered design guidelines. Besides this, a parametric study was carried out to explore the combined effect of different parameters as well as the impact of individual parameters.

• The Research Journal of the Costume Culture
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• v.13 no.1
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• pp.174-187
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• 2005

Recently the issue of brand equity has emerged as one of the most critical areas for fashion marketing management. Despite strong interest in the subject, there is little evidence of how brand equity is created by marketing mix elements and what their effects are. This study explores the influences of marketing mix elements on the brand equity of apparel products. Based on a literature review, a conceptual model for the quality, design, price, advertisements, and brand leadership on consumer's view on brand equity through brand identification and brand values was formulated and tested. For comparative purposes, two basic casual brands are tested, one is Polo and the other is Giodano. The subjects were Korean .50 college women living in Seoul and Daejeon. Results showed that brand equity of casual brand is affected by quality, brand leadership, design, price, advertisements. Therefore marketers should develop the core element to position its brand strategy to create competitive advantages.

• Korean Institute of Interior Design Journal
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• v.22 no.1
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• pp.132-142
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• 2013

An event as philosophical thought is expanded throughout our society and affected largely an architectural field as well as aesthetics. Paying attention to this fact, this study is to relate the event to an architectural space and to find an interrelationship between them. Since Martin Heidegger who started to be regarded the event as a subject of thought, many philosophers revealed different thoughts about it. Architecture works of Louis I. Kahn, Peter Zumthor, Steven Holl, Bernard Tschumi, Rem Koolhaas who had the influences from the thoughts of Martin Heidegger, M. Merleau-Ponty, Jacques Derrida, Gilles Deleuze, are analyzed and compared their features. The reason why this relationship has become the subject of research is because the event can be confirmed to be connected with an architectural thoughts by correlating with aesthetic texts. Throughout this study, each architect, who is affected from philosophers, has different characters as they have different thoughts about events. This study is expected to be used as an literature data of intertextuality of philosophy and architecture.

• Journal of Sensor Science and Technology
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• v.21 no.1
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• pp.28-33
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• 2012

The visual sensing of human hands plays an important part in many man-machine interaction/interface systems. Most existing visionbased hand detection techniques depend on the color cues of human skin. The RGB color image from a vision sensor is often transformed to another color space as a preprocessing of hand detection because the color space transformation is assumed to increase the detection accuracy. However, the actual effect of color space transformation has not been well investigated in literature. This paper discusses a comparative evaluation of the pixel classification performance of hand skin detection in four widely used color spaces; RGB, YIQ, HSV, and normalized rgb. The experimental results indicate that using the normalized red-green color values is the most reliable under different backgrounds, lighting conditions, individuals, and hand postures. The nonlinear classification of pixel colors by the use of a multilayer neural network is also proposed to improve the detection accuracy.