• 한국학교수학회논문집
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• 제23권3호
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• pp.299-321
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• 2020

OECD가 주관하는 PISA는, 변화하는 미래 사회를 대비하여 학생들에게 필요한 역량은 무엇이고 각 국가에서는 이를 어떻게 길러주어야 하는가에 대한 고민에서 시작되었다. 2000년에 첫 번째 본검사를 시작으로 3년 마다 시행된 PISA는 어느덧 여덟 번째 주기를 준비하고 있다. PISA 2022는 10년 만에 수학이 주 영역이 되는 주기로, OECD PISA 국제본부는 기존 주기의 수학 소양의 정의와 평가틀을 수정 보완하고, 이를 반영한 예시 문항을 공개하였다. 이에 본 연구에서는 PISA 수학 소양에 대한 정의와 평가틀의 변화 흐름을 살펴보고, PISA 2022 평가틀과 함께 소개된 예시 문항의 특징을 분석하였다. 이를 통해 역량 기반 교육과정을 표방하는 2015 개정 교육과정의 성공적인 실행과 수학 학습 평가에 관한 시사점을 도출하였다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 봄 학술논문 발표대회
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• pp.273-274
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• 2021

This paper proposes a process to calculate the amount of construction and demolition (C&D) of underground vertical extension methods through considering the characteristics of used construction and demolished materials. The underground vertical extension methods analyzed in this paper were the bottom-up, normal top-down, and top-down methods with multi-post downward (MPD). In order to check the applicability of the proposed process, 24 illustrative examples were generated. The amount of C&D waste of the illustrative examples were calculated and compared. As the results, the top-down method with MPD was the most efficient method to reduce the amount of C&D waste.

• 대한산업공학회지
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• 제17권1호
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• pp.9-15
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• 1991

This paper suggests a method to construct nonparametric edge blend surfaces between nonparametric (base) surfaces. The blend surface satisfy $VC^1$ condition for the base surfaces, and its fullness can be controlled easily. Several illustrative examples are shown.

• Journal of Photoscience
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• 제10권1호
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• pp.49-60
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• 2003

How stereo selectivity in singlet and triplet photocycloaddition and photocyclization reactions, respectively, is linked to spin selectivity and how this link affects our understanding of photochemical reaction mechanisms, is described in this review. As illustrative examples, the Paterno-Buchi reaction and the Norrish-Yang cyclization are described with emphasis on triplet biradical structure and dynamics.

• Journal of applied mathematics & informatics
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• 제5권2호
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• pp.499-506
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• 1998

In this paper we will consider the interpolation of fuzzy data by fuzzy-valued natural splines. Finally we will give the nu-merical solution of the illustrative examples.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2005년도 춘계학술발표회
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• pp.179-180
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• 2005

• 대한수학회지
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• 제58권4호
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• pp.921-948
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• 2021

We continue the investigations in [6] extending the Bruhat order on n × n alternating sign matrices to our more general setting. We show that the resulting partially ordered set is a graded lattice with a well-define rank function. Many illustrative examples are given.

• Annals of Fuzzy Mathematics and Informatics
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• 제16권3호
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• pp.261-284
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• 2018

In this paper, we recall the definition of soft set, fuzzy soft set, hesitant fuzzy set and hesitant fuzzy soft set and some of their examples. We define the concept of hesitant fuzzy soft multiset which combines hesitant fuzzy soft set and soft multiset theory. We also define basic terms in hesitant fuzzy soft multiset with relevant examples. Some basic operations such as restricted intersection, extended intersection, union, restricted union, AND-product and OR-product and their properties are given, supported with illustrative examples. We finally establish some important results, including De Morgan's inclusions and laws.

• International Journal of Control, Automation, and Systems
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• 제3권4호
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• pp.580-590
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• 2005

In this paper, we propose a new stability criterion and a controller design method for switched linear systems. The proposed stability criterion is applicable to each subsystem independently without the need to consider the overall system. The controller can be easily designed through geometric relations between eigenvalues of each subsystem matrix. The proposed methods provide a systematic and simple pole assignment approach for switched linear systems. Illustrative examples are given.

• Journal of the Korean Data and Information Science Society
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• 제19권2호
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• pp.587-596
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• 2008

This paper develops the optimal periodic preventive maintenance policies following the expiration of warranty: renewing warranty and non-renewing warranty. After the warranty period is expired, the system undergoes the PM periodically and is minimally repaired at each failure between two successive PMs. Firstly, we determine the expected cost rate per unit time and the expected downtime per unit time for the periodic PM model. Then the overall value function suggested by Jiang and Ji(2002) is applied to obtain the optimal PM period and the optimal PM number. Finally, the numerical examples are presented for illustrative purpose.