• Journal of architectural history
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• v.16 no.3
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• pp.39-56
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• 2007

This study is conservation works trend since 1900. Objects for study are National Treasures and Treasures in Buddhism, in wooden architecture. And researched about the factor of conservation works, roof and tile, painting and dissolution conservation works cycle by dissolution, timber change ratio. The factor of conservation works is the most, roof and tile. Conservation works cycle by dissolution is 12.8 years. Painting cycle is 16.3 years. There are two concepts of conservation works, that is restoration and preservation. There are many restoration before 1960's. To 1960's the preservation to be many to 1970's many Restoration. And since the end of 1970's is Preservation. These reasons are conservation works history of object, the rule for Heritage protection, people on works, and study of architecture. history.

• Journal of the Korean School Mathematics Society
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• v.8 no.4
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• pp.445-458
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• 2005

This thesis compared and analyzed the data of Mathematics History in Middle School Textbook with each publisher. It searched for the difference and similarity between them and considered about what is contained in the mathematics history to give interests to middle school students.

• Fisheries and Aquatic Sciences
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• v.11 no.3
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• pp.177-181
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• 2008

Glyceraldehyde 3-phosphate dehydrogenase(GAPDH) is a key enzyme for carbohydrate metabolism in most living organisms. Recent reports and our own searches of teleost species in publicly available genomic databases have identified at least two distinct GAPDH genes in a given species. The two GAPDH genes are located on the same chromosome in teleosts, whereas they are located on the different chromosomes in mammals. Thus, we reconstructed a phylogenetic tree to better understand the evolutionary history of the GAPDH genes in the vertebrate lineage. Our phylogenetic analysis revealed unambiguously that the two GAPDH genes of teleosts are phylogenetically closely affiliated to one of the cytosolic GAPDH and spermatogenic GAPDH-S of mammals. This indicates that the two paralogous GAPDH genes shared a common ancestor and subsequently underwent a gene duplication event during early vertebrate evolution. However, GAPDH-S of teleosts showed significant differences in the polypeptide residues and tissue distribution of its mRNA transcripts from that of mammals, implying they have undergone a different history of functionalization.

• Journal for History of Mathematics
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• v.28 no.5
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• pp.279-297
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• 2015

In the present study, we review the history of the participations of the Korean national team in the International Mathematical Olympiad for 28 years. We identifiy three major events that highlighted the development of the Korean Mathematical Olympiad program: The first participation in the International Mathematical Olympiad, hosting of the International Mathematical Olympiad, and winning the first place in the International Mathematical Olympiad. We also propose some recommendations for next steps to facilitate the development of Mathematical Olympiad in Korea.

• Journal for History of Mathematics
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• v.30 no.5
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• pp.305-323
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• 2017

Statistics was not recognized until the early 20th century as an independent science, and statistical education research came to an international milestone in the late 1940s. The purpose of this study is to investigate the historical development of statistics education research, focusing on the activities of the International Statistical Institute (ISI) and the International Association for Statistical Education (IASE). Statistics education in Korea is considered with regard to the history of international research on statistics education in this study. It implies for the direction of statistical education research to domestic mathematics education researchers and statistical researchers related to statistical education research.

• Journal of National Security and Military Science
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• s.5
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• pp.281-350
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• 2007

The purpose of this study is to survey the circumstances of sniping warfare and to prove the importance of usage of snipers. The research method was referred to the history of foreign warfares and autobiographies, articles, and testimonies of snipers. Also, various news reports were also studied to collect information. The content of this study investigates the circumstances of sniping combat scenes from its first appearance in the world's major warfares to contemporary ones. Also, the research contains the history of weapons, ammunition, rifles, and the principle of rifle shooting including ballistics. We hope this study provides ROK Army and government agencies the foundation of sniping and thereby improving the effectiveness of correspondence to international conflicts and terrorism.

• Journal of Mushroom
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• v.6 no.3_4
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• pp.103-110
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• 2008

A cultivation of Pleurotus spp. on tree-stumps and logs, was first described at the beginning of the twentieth century. Now Pleurolus spp. is the most popular mushrooms in Korea. Especially, P. ostreatus has been cultivated for many years since artificial cultivation methods were developed in 1980's. Its productivity occurring almost 32% in Korea. To find the vision of mushroom research, the beginning and history of Pleurolus spp. cultivation were introduced worldwide based on Journal of Mushroom Science. The important innovation and history in cultivation were also discussed in Korea.

• American Studies
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• v.42 no.2
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• pp.135-160
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• 2019

This paper gives a feminist reading of Suzanne Alexander in The Alexander Plays by focusing on her performances as active reconstitutions of history and memory. A compilation of four of Adrienne Kennedy's more recent plays, The Alexander Plays revolves around a central protagonist who, behind windows and within the closed spaces of the home, waits for her missing husband to return home. Yet, the plot of the waiting wife seems to mask the hidden and more dangerous desires for political transgressions of the play. By analyzing Suzanne's interaction with various literary and historical figures, memories and events, this paper argues that her seeming approval of domesticity, femininity and intimacy serves as a cover for her more political altercations with history, race and gender.

• Journal of the Korean Society of Industry Convergence
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• v.27 no.3
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• pp.581-590
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• 2024

This study aims to extract key topics through text mining of incident records (incident history, post-incident measures, preventive measures) from construction safety accident case data available on the public data portal. It also seeks to provide fundamental insights contributing to the establishment of manuals for disaster prevention by identifying correlations between these topics. After pre-processing the input data, we used the LDA-based topic modeling technique to derive the main topics. Consequently, we obtained five topics related to incident history, and four topics each related to post-incident measures and preventive measures. Although no dominant patterns emerged from the topic pattern analysis, the study holds significance as it provides quantitative information on the follow-up actions related to the incident history, thereby suggesting practical implications for the establishment of a preventive decision-making system through the linkage between accident history and subsequent measures for reccurrence prevention.

• Research in Mathematical Education
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• v.20 no.1
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• pp.39-49
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• 2016

The History of Mathematics (HOM) was integrated in teaching the Cartesian Coordinate Plane (CCP) to Grade Seven learners of Moonwalk National High School using Lesson Study. After the lesson was taught, there were three valuable issues emerged: (1) HOM is a Springboard and/or a Medium of Motivation in Teaching CCP; (2) The History of CCP Opened a Wider Perspective about Its Real-life Application in the Modern World (3) Integration of History Developed a Sense of Purpose and an Appreciation of Mathematics Among Learners. Feedbacks solicited from the learners showed that they have understanding of the importance of studying Mathematics after they learned the life and contributions of Rene Descartes to Mathematics. Hence, integration of history plays a vital role in developing positive attitudes among learners towards Math.