• 문화기술의 융합
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• 제7권3호
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• pp.147-154
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• 2021

본 연구는 커피를 선호하는 한국인들에게 예멘·에티오피아의 문화적 차이를 이해하고 지역협력 방안을 찾고자 하는 것이다. 이슬람지역은 직접 협력을 할 수 없어 커피산업을 통한 교류방법을 고려하였다. 이를 위해 먼저 지역적 교류 모델과 선행연구를 조사하였고, 초기 문화와 종교의 특징을 알아보고 문화완충과 예멘의 이슬람 분쟁역사를 통한 정치종교적 지역 관계를 알아보았고 마지막으로 커피지역을 비교하기 위해 지역 커피산업과 문화에 대해 설명하였다. 결론적으로 이슬람 연구에 대한 지역 협력을 위한 교육이 필요하며 이를 위해 첫째, 문화 충돌 극복, 둘째, 새로운 전략적 지역협력, 셋째, 종교보다 문화적 접근, 넷째, 새로운 기술적 지역협력, 다섯째, 예멘 난민 지역협력 병행, 여섯째, 에티오피아에서의 교두보(예멘 교역지역협력) 등의 방식을 제안하였다.

• 호남수학학술지
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• 제34권4호
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• pp.571-584
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• 2012

In this study, we investigate the concept of zero-divisor graphs of multiplication modules over commutative rings as a natural generalization of zero-divisor graphs of commutative rings. In particular, we study the zero-divisor graphs of the module $\mathbb{Z}_n$ over the ring $\mathbb{Z}$ of integers, where $n$ is a positive integer greater than 1.

• 한국수학교육학회지시리즈B:순수및응용수학
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• 제26권4호
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• pp.215-231
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• 2019

In this paper, we establish some ĆIRIC type fixed point theorems in α-complete and orbitally T-complete non-Archimedean modular metric spaces. Meanwhile, we present an illustrative example to emphasis the realized improvements. These obtained results extend and improve certain well known results in the literature.

• 호남수학학술지
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• 제46권1호
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• pp.38-46
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• 2024

Let X, Y be Banach spaces, S_X and S_Y be the unit sphere of X and Y, respectively. Let f₀ : S_X → S_Y be ε-isometry for some ε ≥ 0. In this paper, we show that there is an extension f : X → Y of f₀ such that f is linear.

• Structural Engineering and Mechanics
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• 제66권3호
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• pp.379-386
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• 2018

The present study addresses the direct and indirect methods of determining the mode-I fracture toughness of concrete using experimental tests and particle flow code. The direct method used is compaction tensile test and the indirect methods are notched Brazilian disc test, semi-circular bend specimen test, and hollow center cracked disc. The experiments were carried out to determine which indirect method yields the fracture toughness closer to the one obtained by the direct method. In the numerical analysis, the PFC model was first calibrated with respect to the data obtained from the Brazilian laboratory test. The crack paths observed in the simulated tests were in reasonable accordance with experimental results. The discrete element simulations demonstrated that the macro fractures in the models are caused by microscopic tensile breakages on large numbers of bonded particles. The mode-I fracture toughness in the direct tensile test was smaller than the indirect testing results. The fracture toughness obtained from the SCB test was closer to the direct test results. Hence, the semi-circular bend test is recommended as a proper experiment for determination of mode-I fracture toughness of concrete in the absence of direct tests.

• 한국축산식품학회지
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• 제39권1호
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• pp.73-83
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• 2019

The aim of this study was to investigate the effect of glucose oxidase (GOX) immobilized on magnetic chitosan nanoparticles (MCNP) on the viability of probiotic bacteria and the physico-chemical properties of drinking yogurt. Different concentrations (0, 250, and 500 mg/kg) of free and immobilized GOX were used in probiotic drinking yogurt samples. The samples were stored at $4^{\circ}C$ for 21 d. During storage, reduction of the number of probiotic bacteria in the samples with enzyme was lower than the control sample (without enzyme). The sample containing 500 mg/kg immobilized enzyme had the highest number of Bifidobacterium lactis and Lactobacillus acidophilus. The samples containing immobilized enzyme had lower acidity than other samples. Moreover, moderate proteolytic activity and enough contents of flavor compounds were observed in these samples. It can be concluded that use of immobilized GOX is economically more feasible because of improving the viability of probiotic bacteria and the physico-chemical characteristics of drinking yogurt.

• Advances in nano research
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• 제11권6호
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• pp.595-606
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• 2021

This paper conducted mainly for forecasting the behavior of the shear connectors in steel-concrete composite beams based on the different factors. The main goal was to analyze the influence of variable parameters on the shear strength of C-shaped and L-shaped angle shear connectors. The method of ANFIS (adaptive neuro fuzzy inference system) was applied to the data in order to select the most influential factors for the mentioned shear strength forecasting. Five inputs are considered: height, length, thickness of shear connectors together with concrete strength and respective slip of the shear connectors after testing. The ANFIS process for variable selection was also implemented in order to detect the predominant factors affecting the forecasting of the shear strength of C-shaped and L-shaped angle shear connectors. The results show that the forecasting methodology developed in this research is useful for enhancing the multiple performances characterizing in the shear strength prediction of C and L shaped angle shear connectors analyzing.

• 한국학교수학회논문집
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• 제16권3호
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• pp.621-636
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• 2013

최근 수학의 정의적 영역의 중요도가 더욱 커지고 있지만, 정의적 영역과 관련되어 있는 수학의 심미적 가치는 거의 주목받지 못하고 있다. 이 논문에서는 초등교육에서 아이들의 감성의 발달과 예술성에 바탕을 둔 발도르프교육에서 활성화된 작도 프로그램을 활용하여 심미적 측면이 강조된 영재 사사교육을 실행하고 그 결과를 제시하였다. 특히 이 수업에서는 특별히 '심미적 안목', '통합적 안목', '실질적 기능'의 함양에 목적을 두었다. 이를 위해 작도를 통하여 기하학적 구조가 지닌 특성을 심미적 체험이 활성화될 수 있는 방식으로 탐색할 수 있도록 하였다. 전체 프로그램 중에서 이슬람 문양과 관련하여 학생들이 협력하여 만든 공동의 주요 산출물을 제시하였다.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제20권3호
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• pp.237-252
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• 2017

4차 산업혁명시대는 수학교육의 방향도 크게 흔들어 놓고 있다. 특히 수학이 다양한 영역에 어떻게 적용되고, 활용될 수 있는지 인식하는 융합 역량이 중요한 시점이다. 이에 본 연구에서는 융합에 대한 관점을 고찰하고, 수학교실에서 활용 가능한 융합 프로그램의 개발을 위한 수학적 탐색을 연구 목적으로 한다. 구체적으로 고대 이슬람 건축물에 사용된 기리 타일을 수학적 관점에서 분석하고, 이를 바탕으로 수학과 다자인 융합 교육을 위한 수학적 탐색을 실시한다. Roger Penrose 보다 500년이나 앞서 만든 기리 타일링의 수학적 분석을 통해 디자인에 대한 이해 및 수학의 활용성과 수학을 통한 타학문의 융합 가능성에 대한 이해의 폭이 넓어지기를 기대한다.

• International Journal of Computer Science & Network Security
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• 제22권12호
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• pp.217-228
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• 2022

The study aimed to build an electronic strategy in innovative learning situations for the role of education in combating intellectual currents. A total of 525 Saudi university faculty members and general education teachers were surveyed using two electronic questionnaires. Arithmetic averages and standard deviations, One-way ANOVA, Scheffé's test, Pearson's correlation coefficient, and Cronbach's alpha stability coefficient were used as statistical methods. The study statistically identifies the differences between the study sample at the level of significance (0.05). and the design of a digital application for individual learning to combat deviant intellectual currents to activate them in light of Saudi Vision 2030 by combining the theoretical academic material and turning it into a learning e-game called (crosswords). The game is equipped with hyper media that supports education with entertainment to direct ideas towards the promotion of identity, the development of values towards moderation and the consolidation of intellectual security. Additionally, the learning e-game represents awareness messages in three short films to activate the role of curricula and intellectual awareness centers to apply realistically, innovatively, and effectively.