• Title/Summary/Keyword: History of research

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Contribution of Oswald Veblen to AMS and its meaning in Korea (Oswald Veblen이 미국수학계에 미친 영향과 한국에서의 의미)

  • Lee, Sang-Gu;Ham, Yoon-Mee
    • Journal for History of Mathematics
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    • v.22 no.2
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    • pp.27-52
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    • 2009
  • This article discusses the contributions of the leader Oswald Veblen, who was the president of AMS during 1923-1924. In 2006, Korea ranked 12th in SCIE publications in mathematics, more than doubling its publications in less than 10 years, a successful model for a country with relatively short history of modern mathematical research. Now there are 192 four-year universities in Korea. Some 42 of these universities have Ph.D. granting graduate programs in mathematics and/or mathematical education in Korea. Rapid growth is observed over a broad spectrum including a phenomenal performance surge in International Mathematical Olympiad. Western mathematics was first introduced in Korea in the 17th century, but real significant mathematical contributions by Korean mathematicians in modern mathematics were not much known yet to the world. Surprisingly there is no Korean mathematician who could be found in MaC Tutor History Birthplace Map. We are at the time, to have a clear vision and leadership for the 21st century. Even with the above achievement, Korean mathematical community has had obstacles in funding. Many people thinks that mathematical research can be done without funding rather unlike other science subjects, even though they agree fundamental mathematical research is very important. We found that the experience of early American mathematical community can help us to give a vision and role model for Korean mathematical community. When we read the AMS Notice article 'The Vision, Insight, and Influence of Oswald Veblen' by Steve Batterson, it answers many of our questions on the development of American mathematics in early 20th century. We would like to share the story and analyze its meaning for the development of Korean Mathematics of 21st century.

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Elemental analysis by neutron induced nuclear reaction - Nuclear track method for the analysis of fissile materials

  • Ha, Yeong-Keong;Pyo, Hyung Yeol;Park, Yong Joon;Jee, Kwang Yong;Kim, Won Ho
    • Analytical Science and Technology
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    • v.18 no.4
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    • pp.263-270
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    • 2005
  • Nuclear track is an useful tool for elemental analysis of radionuclides, such as uranium, plutonium and thorium, etc., and for elements undergoing nuclear reactions with thermal neutrons such as lithium and boron. This method has various application fields such as detecting fissionable radionuelides, measuring the fission rate in nuclear technology, analyzing cosmic radiation from meteorite, calculating the age of minerals as well as their history, etc. Track registration method has been applied to the microscopic analysis of boron and fissionable element such as uranium in KAERI. This report reviews the theoretical background of the nuclear track formation, practical procedures to obtain etched tracks and a perspective of the future.

A Study on Building Envelope and Formation of Flexible Boundary - Focused on Contemporary Architecture of Toyo Ito and SANAA - (외피 구조를 통한 경계의 유연성 형성에 관한 연구 - 토요 이토와 SANAA의 현대 건축을 중심으로 -)

  • Choe, San-Ki
    • Korean Institute of Interior Design Journal
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    • v.19 no.2
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    • pp.81-89
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    • 2010
  • The problem of defining the relationship between interior space and exterior envelope of a building has long been a challenging task in the field of architecture throughout its history. This research chronologically reviews some of the important turning points in various schools of thoughts concerning construction of exterior envelope, with focus on how they influenced and altered the formation of our interior environment. This research also stipulates on how technological advance in the late 20th century laid grounds for a new type of interior-exterior relations in architecture through creation of flexible and ambiguous boundary conditions. The focus of this qualitative research will be on contemporary works of Japanese architects Toyo Ito, SANAA, and related group of architects who address the issues of transparency, flexible interior layout, buffer zones, structural facade, and neutralized (homogeneous) space that produces spatial quality of non-linear, non-hierarchical, and de-materialized space as a direct alternative to modern principles of space making.

On the Establishment of a New Spiritual and Technological Cluster 《Turkestan Valley》 for Kazakhstan Society

  • Orazaly, Sabden
    • The Journal of Asian Finance, Economics and Business
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    • v.2 no.1
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    • pp.23-28
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    • 2015
  • Today, in the course of globalization and crisis, the world needs the new ideas, new variants and ways of development of civilizations. Due to this, the author has developed and introduced own research (know-how) without world's analogue. The main purpose of this research is to transfer Turkestan in the spiritual center (mega polis) of the international level. For the first time in history, as an example of one region, two large cardinal problems had been connected, i.e. on the one hand spiritual and cultural development of the society, on the other hand new 6th technological way to show to the world opportunity of Kazakhstan new model of spiritual-innovative development. After realization of this research the status of Kazakhstan will strengthen at international level. This workout is devoted to all people, especially to the youth - as future of our country.

Gastropleural Fistula: A Rare Complication of Ewing Sarcoma

  • Bozkurt, Mehmet Abdussamet;Kones, Osman;Basoglu, Irfan;Alis, Halil
    • Journal of Chest Surgery
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    • v.46 no.4
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    • pp.293-294
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    • 2013
  • Gastropleural fistula (GPF) is a rare condition that can occur as a consequence of prior pulmonary surgery, trauma, or malignancy. Conservative management usually fails, and gastrectomy and even thoracotomy is often required, especially in debilitated patients. We present a patient with GPF who had a history of Ewing's sarcoma. Diagnosis of GPF was confirmed by upper gastrointestinal system endoscopy and radiographic contrast examination, and the patient underwent a laparoscopic wedge resection of the fistula. To our knowledge, this is the first report of a GPF, in the formation of which recurrence of Ewing's sarcoma had played a role and in the treatment of which wedge resection of the fistula was performed. Laparoscopic treatment of GPF may be associated with less morbidity and should be considered as the initial procedure of choice.

Spore-Pollen Specters of Deed Turnn Lake Terrace, Darkhad Depression, Mongolia

  • Punsalpaamuu, G.
    • The Korean Journal of Quaternary Research
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    • v.17 no.2
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    • pp.39-41
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    • 2003
  • Pollen and spores as well as their morphological characteristics are biological stability materials in which contains historical information about vegetation and climate changes. As noted researcher Neishtadt in 1971, the lake and swamp deposits were developed only in Holocene period. The geological history of Darkhad depression which is situated in the Northern end of Mongolia from ancient time become under scientific interest of many researchers. Our investigation was focused on pollen analysis of lake sediment of Darkhad depression which caused bottom of paleolake. In Mongolia the palynology science is beginning to develop since 1990 and in 2000 the laboratory of palynology was established at the department of Biology, State Pedagogical University of Mongolia. Researchers from this laboratory working on pollen morphology of present flora in order to classify plants taxonomy. Another part of our investigation is mellitopalynology, which is studying of pollen grains in a honey. Although, this research has been extending by pollen analysis of sediment and lake deposits in past few years on the basis of high sensitive microscope and modem technology.

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UI Design and Usability Analysis of Maternal Notebook Mobile Application (산모수첩 모바일 애플리케이션의 UI 디자인과 사용성 분석)

  • Chun, Christine Hyeyeon
    • Journal of Korea Multimedia Society
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    • v.23 no.1
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    • pp.85-92
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    • 2020
  • This paper analyzes the design and usability of maternal notebook mobile application and suggests the improvement direction of the application. The researcher compared and analyzed the functions of maternal notebook applications, conducted user interviews and expert evaluations. The conclusions of this study are the use of appropriate information volume, proportional screen division focusing on main functions, the use of GNB format of main menus, the prohibition of double menu configuration, the use of color consistent with the image of the service, the use of few font sizes, the use of appropriate colors in typography, the use of rich icons with uniform design, card format, list format, but also timeline and infographic forms that make rich user interface design. Maternal notebook application research is expected to be an important reference for research on similar mobile applications with complex functions such as information provision, user history, and community, along with improved research in healthcare design.

Chromosome number of myoga ginger (Zingiber mioga: Zingiberaceae) in Korea

  • IKEDA, Hiroshi;NAM, Bo-Mi;YAMAMOTO, Nobuko;FUNAKOSHI, Hidenobu;TAKANO, Atsuko;IM, Hyoung-Tak
    • Korean Journal of Plant Taxonomy
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    • v.51 no.1
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    • pp.100-102
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    • 2021
  • The chromosome number of myoga ginger (Zingiber mioga (Thunb.) Roscoe: Zingiberaceae) has been reported as 2n = 22 for Chinese plants and 2n = 55 for Japanese plants. We checked the chromosome number of Z. mioga in plants collected in Jeollabuk-do and Jeollanam-do, Korea, and counted 2n = 44, the first report of this number for the species. As the basic chromosome number of Z. mioga is thought to be x = 11, Z. mioga plants in China, Korea, and Japan appear to be diploids, tetraploids, and pentaploids, respectively. In finding the tetraploid race of Z. mioga in Korea, we can hypothesize that the pentaploid race in Japan is derived through the fertilization of reduced gametes of the diploid race and unreduced gametes of the tetraploid race.

Page kidney after botulinum toxin injection during chiropractic care

  • Park, Han Min;Choi, Chung Jo;Kim, Jin Hee;Kim, Ja Kyung;Kim, Bum Jun;Seo, Jae Yong;Jeong, Yong Seol;Kim, Jwa-Kyung;Kim, Sung Gyun
    • Journal of Yeungnam Medical Science
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    • v.32 no.2
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    • pp.143-145
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    • 2015
  • Page kidney refers to the phenomenon of hypertension secondary to long-standing compression of renal parenchyma caused by renal subcapsular collection. The most common cause of renal subcapsular collection is a hematoma which usually occurs after a history of blunt trauma. A 42-year-old female patient who received botulinum toxin injection in her back during chiropractic care was admitted to the emergency room with sudden bilateral flank pain and hypertension. The computed tomography (CT) images demonstrated the presence of bilateral subcapsular renal hematoma. The patient was treated conservatively and recovered well. The follow up CT images showed markedly resolved bilateral hematoma.

Evaluation of Irregular Disturbances to Ships in Autopilot Navigation (자동조타로써 항행하는 선박에 작용하는 불규칙 외란 추정법에 관한 고찰)

  • 이경우;손경호;김진형
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 1995.04a
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    • pp.65-92
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    • 1995
  • The final aim of our research project is a study on assessment of automatic steering system of ships in open seas. In order to achieve this aim we need to know the characteristics of each component of the system and also to know the characteristics of disturbance to ship dynamcis. In this paper we provide calculation method of irregular disturbance to ships in autopilot navigation in open seas and also show calculation examples about two kinds of ship ore carrier and fishing boat. The disturbance consists of irregular wave and random wind, The disturbance is calculated as equivalent yaw angular velocity. Each spectrum and time history of disturbance are reasonably evaluated. Further investigation concerning to performance index of autopilot system and energy loss related to automatic course keeping will be dealt with in another paper,

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