• Journal of Korean Society of Industrial and Systems Engineering
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• v.28 no.1
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• pp.114-120
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• 2005

This paper studies procedures for bottleneck detection in closed queueing networks(CQN's) with multiple job classes. Bottlenecks refer to servers operating at $100\%$ utilization. For CQN's, this can occur as the population sizes approach infinity. Bottleneck detection reduces to a non-linear complementary problem which in important special cases may be interpreted as a Kuhn-Tucker set. Efficient computational procedures are provided.

• Kyungpook Mathematical Journal
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• v.63 no.2
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• pp.225-234
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• 2023

In this paper, we use the use the linear operator ʒ^x_τ,σ(u, v, y)𝔣(z) and the concept of the subordination to analyse the general class of all analytic univalent functions. Our main results are implication properties between the classes of such functions and the application of these properties to special cases.

• Bulletin of the Korean Mathematical Society
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• v.61 no.1
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• pp.147-160
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• 2024

In this paper, we define two new classes of monomial ideals I_𝑙,d and J_k,d. When d ≥ 2k + 1 and 𝑙 ≤ d - k - 1, we give the exact formulas to compute the depth and Stanley depth of quotient rings S/I^t_𝑙,d for all t ≥ 1. When d = 2k = 2𝑙, we compute the depth and Stanley depth of quotient ring S/I_𝑙,d. When d ≥ 2k, we also compute the depth and Stanley depth of quotient ring S/J_k,d.

• Journal of Gifted/Talented Education
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• v.22 no.3
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• pp.757-777
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• 2012

Peer relationships in young students' communities are one of the important factors influencing the cognitive and affective domains of learning. Moreover, students who join the special program for gifted students possess differential peer relationships from the students in general classes. This study aims to explore the differences of 5th grade five science-gifted students' peer relationships between students in special classes for gifted students and general classes. Five students in the special program for gifted students, managed by the Office of Education in a southern city, participated in this study. Social network analyses were utilized to explore participants' peer relationships; the students' homeroom teacher was interviewed to explore the contextual and in-depth characteristics of gifted students' peer relationships. The results illustrated four cases of peer relationships: (1) smart loner (2) my study mate (3) I'm the best in my class, and (4) a good friend anywhere. This study identified that the gifted students possessed diverse peer relationships in both the special program and general classroom. In addition, this study suggests that the program for gifted students needs to be specially designed based on the gifted students' peer relationship.

• Bulletin of the Korean Mathematical Society
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• v.52 no.6
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• pp.2035-2045
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• 2015

Meridian surfaces in the Euclidean 4-space are two-dimensional surfaces which are one-parameter systems of meridians of a standard rotational hypersurface. On the base of our invariant theory of surfaces we study meridian surfaces with special invariants. In the present paper we give the complete classification of Chen meridian surfaces and meridian surfaces with parallel normal bundle.

• East Asian mathematical journal
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• v.40 no.3
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• pp.341-353
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• 2024

This paper aims to provide a general review of Opinion Dynamics (OD) and its related models, along with application examples for special agents. We will discuss special classes of social actors, such as informed actors, opponents, and extremists, in the context of opinion dynamics. Our main objective is to determine the extent to which opinion dynamics, as a mathematical sociology, relates to social reality. To achieve this, we present key elements of mathematical sociology in Opinion Dynamics, which we then apply to real socioeconomic phenomena using modeling assumptions and mathematical formulations.

• Journal of Gifted/Talented Education
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• v.26 no.2
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• pp.389-404
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• 2016

This research aims to build a concept map reflecting gifted elementary students' perception on fun factors of the classes for the gifted. Data for this research was gathered through brainstorming of 80 students currently attending classes for the gifted. 10 of them were selected as focus group for classification and evaluation, and 140 gifted-class students were asked of the fun factors for level of agreement after concept map analysis. Results of the research were, first, 46 final statements about fun factors which are categorized into 6 sub-categories ('the gifted class teacher's encouragement and feedback', 'confidence and chance', 'teamwork and intimacy with gifted friends', 'fulfilling, beneficial, and rewarding feeling', 'new and special experiments', 'qualitatively different class level and learning environment'). Second, the gifted students showed highest level of agreement on 'new and special experiments' category among the 6 sub-categories. Implication of this research on the field has been discussed.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.9 no.7
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• pp.175-185
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• 2019

In order for learners with different characteristics to reach meaningful learning, the curriculum - class-assessment must be integrated. In this study, we classified the integration into three aspects: content compatibility, operator convergence, and institutional connectivity, and looked at the status of unifying special classes in general schools from each perspective. As a result of the study, in terms of content suitability, adjustment of the curriculum to those subject to special education-professorial revision-assessment adjustment was not performed well except for subjects where individualization professors were conducted. From an actor's perspective, the ambiguity of the roles of general and special teachers resulted in the inability of curriculum coordinators, educators, evaluators and others to agree or even minimal consultations. In terms of institutional linkage, the authority and role of curriculum coordination, professorial revision, and assessment coordination were unclear except for subjects where individualization professors were conducted. As an alternative to discuss and remedy these problems, it proposed increasing awareness of individualized education, compulsory consultation and institutional readjustment.

• Journal of Gifted/Talented Education
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• v.9 no.1
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• pp.63-84
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• 1999

This study is to examine the current problems of teaching gifted children and suggest elements(or factors) to be considered in setting up goals thereof by analyzing incumbent teachers awareness. 121 teachers were arbitrarily selected from 30 different kindergartens located in Seoul and Anyang, and they were interviewed with two parts questionnaires(or opinions) of improving current practice. The first part of the questionnaire is composed of the questions about teachers awareness of gifted children, actual state of teaching gifted children, effects of teaching in kindergarten for gifted children, and desired direction for teaching improvement. The second part of the questionnaire provided interpretation of precociousness by study habit, creativity and definitive properties and asked the number of children qualified in their classes. Since the results of the first interview as to awareness of gifted children were dismal, 40 teachers were thereafter randomly selected again, and the second interview was warranted. The results alarmingly revealed that program of teaching gifted children were barely existing even though the teachers awareness for the needs of special education for the precocious as well of study materials and programs thereof was high. In addition, the teachers familiarity of gifted children was surprisingly low. At the second interview whereby gifted children was explained, the teachers awareness of gifted children was dramatically improved to 40% in comparing with 7.4% at the first interview without explanation of gifted children. Teachers awareness of gifted children was low because of lacking direct or indirect experience of having gifted children and special programs therof in their classes as well as teachers nonchalance. Therefore not only adequate training and education of teachers, but also cultivation of qualified teachers for special programs for the precocious are obligatory. Training of incumbent teachers and determination of gifted children are prerequisite for timely discovery of gifted children and adequate education for them. Development of special education programs and diffusion are also crucial.

• Journal of the Korean Society of Clothing and Textiles
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• v.35 no.11
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• pp.1399-1408
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• 2011

This study analyzes the current educational curricula in the field of clothing construction to provide some fundamental information for developing more appropriate educational courses and to activate the fashion business. A total of 82 different departments related to fashion and apparel were selected from four-year domestic universities and the curricula recently posted on their internet websites were analyzed by descriptive statistics. More than half (53.7%) of the 82 departments were offering classes in the clothing construction field for 3 credits and 4 class hours. College affiliation of the departments that offered curricula in the clothing construction field was classified into 5 categories: the arts (34), human ecology (22), natural sciences (14), humanities/culture (9), and others (3). Human ecology category showed the highest results in the average class hours (3.9), the number of classes in the clothing construction field (7.6), and the percentage of the classes in the clothing construction field out of all major classes offered by the clothing department (19.9%). All 82 departments were classified into 3 categories of: fashion design (32), clothing (28), and fashion business (22). The clothing category showed the highest results in the average credits (2.8), class hours (3.8), the number of classes offered by the clothing construction field (7.6), and the percentage of the classes that offer clothing construction education out of all major classes offered by the clothing department (19.9%). The educational contents of clothing construction area were classified into 8 different categories of: basic theory and sewing, clothing construction, flat pattern, draping, tailoring and advanced clothing construction, pattern CAD, sewing science and apparel manufacturing process, and clothing construction for special needs. Among these categories, the draping category constituted 21.7% as the largest part. In addition, the distribution of classes offered by 4 academic years were analyzed into 8 different categories.