• 한국가정과교육학회지
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• 제35권4호
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• pp.47-60
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• 2023

본 연구에서는 중학교 가정 교과에서 한과를 활용한 식생활 영역 수업에 대한 학생들의 경험을 살펴보는 데 목적이 있다. 본 연구에서 수집된 참여 관찰, 심층 면담, 현장 자료 등은 에믹 코딩으로 분석되었으며, 그 결과는 다음과 같다. 첫째, 학생들은 '한과 실습에 대한 기대감'을 가지고 있었다. 학생들은 실습에 대해 항상 긍정적이며, 맛있는 것을 먹는다는 기대감과 중학교에 들어와 처음 하는 실습에 대해 무척이나 기다리고 있다는 것을 알 수 있었다. 또한 한과를 처음 접해보는 학생들이 많이 있어 한과에 대해 알아보는 것에 대한 기대감도 높았다. 둘째, 학생들은 '한과 프로젝트를 통한 주도적인 학습 과정'을 경험하였다. 즉, 학생들은 한과에 대한 활동북을 만드는 과정에서 한과와 양과의 차이, 한과 조리의 과학적 원리 등에 대하여 자기주도적인 학습이 일어남을 깨달았다. 셋째, 학생들은 '실습을 통한 한과의 자긍심'을 가지고 있었다. 학생들은 한과에 대해 소중히 여기고 전통을 계승해야겠다는 충분한 인식과 가치변화가 있었다는 것을 알게 되었다. 넷째, '잠재적 교육과정 효과'가 있었다. 중학교 3년 내내 코로나를 겪으면서 대면 모둠활동을 경험하지 못했던 학생들이 협력의 중요성을 인식하게 되었고, 가정에서도 한과를 직접 만들어보기도 하였다. 학생들이 전통한과에 대한 자긍심을 갖게 하기 위해서는 학교 현장에서 가정과교사가 적극적으로 전통 식품에 대한 수업을 진행하여 학생들에게 접할 수 있는 기회를 많이 제공하는 것이 필요하다는 것이 확인되었다.

• 대한수학회지
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• 제38권3호
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• pp.561-575
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• 2001

Making use of the singular spectrum in the Denjoy-Carleman class we prove the microlocal decomposition theorem and quasianalytic versions of Holmgren's uniqueness theorem and watermelon theorem.

• 대한수학회논문집
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• 제27권2호
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• pp.223-231
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• 2012

We obtain some density results for the 4-ranks of class groups of quadratic extensions of quadratic function fields analogous to those results of F. Gerth in the classical case.

• Progress in Superconductivity
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• 제14권1호
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• pp.60-65
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• 2012

A superconductor flywheel energy storage system (SFES) is an electro-mechanical battery which transforms electrical energy into mechanical energy for storage, and vice versa. A 35 kWh class SFES module was designed and constructed as part of a 100kWh/1MW class SFES composed of three 35 kWh class SFES modules. The 35 kWh class SFES is composed of a main frame, superconductor bearings, a composite flywheel, a motor/generator, electro-magnetic bearings, and a permanent magnet bearing. The high energy density composite flywheel is levitated by the permanent magnet bearing and superconductor bearings, while being spun by the motor/generator, and the electro-magnetic bearings are activated while passing through the critical speeds. Each of the main components was designed to provide maximum performance within a space-limited compact frame. The 35 kWh class SFES is designed to store 35 kWh, with a 350 kW charge/discharge capacity, in the 8,000 ~ 12,000 rpm operational speed range.

• 대한수학회논문집
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• 제12권3호
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• pp.553-560
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• 1997

A class number formula over global function field, extending the formula obtained by Shu, is proved.

• 미생물학회지
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• 제34권4호
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• pp.194-199
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• 1998

한강의 본류와 만나는 탄천과 중랑천에서 16S rDAN를 증폭하고 부분적인 염기서열 분석을 통하여 한강의 세균 다양성을 결정하였다. 총 27개의 클론을 분리하였으며 RFLP를 이용하여 7개의 group으로 나누었다. 탄천의 15개 클론은 4개의 group으로 나뉘어졌으며 가장 많은 클론을 포함하는 group(HT-1 클론)은 class Proteobacteria의 ${\delta}$-subdivision에 속하는 Acrobacter cryaerophilius와 높은 유사도를 보였으며, 다른 두 group(HT-6과 HT-9 클론)은 모두 clas Cytophagales에 속하였다. 중랑천의 12개의 클론은 3개의 group으로 나뉘어졌으며 가장 많은 클론을 보이는 group(HJ-1 클론)은 class Proteobacteria의 ${\alpha}$-subdivision에 속하는 Sphingomonas sp. 와 높은 유사도를 나타내었다. 전체적으로는 Proteobateria(alpha, beta and delta subdivision), Cytophagales와 Actinomycetales가 검출되었다.

• Journal of Species Research
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• 제8권3호
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• pp.249-258
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• 2019

Owing to a distinct environmental regime and anthropogenic effects, freshwater bacterial communities of urban streams are considered to be different from those of large freshwater lakes and rivers. To obtain unrecorded, freshwater bacterial species in Korea, water and sediment samples were collected from various urban streams of the Han River watershed in 2018. After plating the freshwater samples on R2A agar, approximately 1000 bacterial strains were isolated from the samples as single colonies and identified using 16S rRNA gene sequence analyses. A total of 26 strains, with >98.7% 16S rRNA gene sequence similarity with validly published bacterial species but not reported in Korea, were determined to be unrecorded bacterial species in Korea. The unrecorded bacterial strains were phylogenetically diverse and belonged to four phyla, six classes, 12 orders, 16 families, and 21 genera. At the generic level, the unreported species were assigned to Nocardioides, Streptomyces, Microbacterium, Kitasatospora, Herbiconiux, Corynebacterium, and Microbacterium of the class Actinobacteria; Paenibacillus and Bacillus of the class Bacilli; Caulobacter, Methylobacterium, Novosphingobium, and Porphyrobacter of the class Alphaproteobacteria; Aquabacterium, Comamonas, Hydrogenophaga, Laribacter, Rivicola, Polynucleobacter, and Vogesella of the class Betaproteobacteria; Arcobacter of the class Epsilonproteobacteria; and Flavobacterium of the class Flavobacteriia. The details of the 26 unreported species, including Gram reaction, colony and cell morphology, biochemical properties, and phylogenetic position are also provided in the strain descriptions.

• 대한수학회지
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• 제49권1호
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• pp.49-67
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• 2012

In this paper we give asymptotic formulas for the number of ${\ell}$-cyclic extensions of the rational function field $k=\mathbb{F}_q(T)$ with prescribe ${\ell}$-class numbers inside some cyclotomic function fields, and density results for ${\ell}$-cyclic extensions of k with certain properties on the ideal class groups.

• Human Ecology Research
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• 제54권4호
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• pp.351-363
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• 2016

This study examined in depth what teachers experience in a practical problem-based home economics class. This study established the research question, "What do teachers experience in the practical problem-based home economics class?" and selected three teacher participants who had steadily performed a practical problem-based home economics class to directly observe classes and conducted intensive interviews with the class performing teachers. The three research participants performed the practical problem-based class as a method of practicing their educational beliefs and based on a problem consciousness that textbook centered classes focusing on concepts cannot manage. They also tried to make efforts to reconstruct the textbook centered with practical problems to promote the critical thinking abilities of students. In practicing the practical problem-based class, the research participants recognized that it was important to show the present problems in reality to the students, teach broad value concepts, and establish rapport with students. They tried to make class content correspond to class evaluation. They felt awarded in how they influenced the development of students and the perception of home economics subjects in a positive way as well as experienced various actual difficulties in performing the practical problem-based class. The three research participants examined themselves through the agony and reflection of the class, and integrated the class with daily activities by applying problem solving methods of practical problem-based classes to their lives.

• 한국정보처리학회논문지
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• 제7권3호
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• pp.818-830
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• 2000

Automation tools for program analysis are needed in order to program understand and maintain, extract the characteristics of object-oriented program such as class name, member function and data member. In this paper, we carried out design and implementation of the automation tool for effective maintenance of object-oriented software. Being based on Reverse Engineering, this approach extracts class relationship information from C++ source code and generates object-oriented model of class diagram using UML as the standard object-oriented methodology. Therefore, this paper provides developers visualized including class information, definitions of classes, inheritance relationships, set relationships, and simple reference relationships. Finally in this paper, we propose a method that construct class relationship information to table in analysis state and make form of table construction to link form so tat developers can perform understanding and maintaining program efficiently. And this method enable to restructure and reuse in object-oriented model.