• Title, Summary, Keyword: Choi Suk Jung(崔錫鼎)

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on perspective of Philosophy of Mathematics (수학철학적 관점에서 본 <구수략>)

  • Jung, Hae-Nam
    • Journal for History of Mathematics
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    • v.22 no.4
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    • pp.67-82
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    • 2009
  • We study Choi Suk Jung's on perspective of philosophy of mathematics. He explains Chosun mathematics as systems of Changes through and redefines on So Kang Gul's Sasang theory. This is the unique view on Chosun mathematics. we conjecture that Choi Suk Jung tries to establish the mathematical principle on So Kang Gul's Sasang theory.

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Mathematics of Chosun Dynasty and $Sh\grave{u}\;l\breve{i}\;j\bar{i}ng\;y\grave{u}n$ (數理精蘊) (조선(朝鮮) 산학(算學)과 수리정온(數理精蘊))

  • Hong Young-Hee
    • Journal for History of Mathematics
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    • v.19 no.2
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    • pp.25-46
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    • 2006
  • We investigate the process of western mathematics into Chosun and its influences. Its initial and middle stages are examined by Choi Suk Jung(崔錫鼎, $1645\sim1715$)'s Gu Su Ryak(九數略), Hong Jung Ha(洪正夏, $1684\sim?$)'s Gu Il Jib(九一集) and Hwang Yun Suk(黃胤錫, $1719\sim1791$)'s I Su Shin Pyun(理藪新編), Hong Dae Yong(洪大容, $1731\sim1781$)'s Ju Hae Su Yong(籌解需用), respectively. Western mathematics was transmitted for the study of the Shi xian li(時憲曆) when it was introduced in Chosun. We also analyze Su Ri Jung On Bo Hae(數理精蘊補解, 1730?) whose author studied $Sh\grave{u}\;l\breve{i}\;j\bar{i}ng\;y\grave{u}n$ most thoroughly, in particular for astronomy, and finally Lee Sang Hyuk(李尙爀, $1810\sim?$), Nam Byung Gil(南秉吉, $1820\sim1869$) who studied together structurally western mathematics.

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A study on finding topics for the application of storytelling method in mathematics education: centered on JiSuYongYukDo and JiSuGuiMunDo (수학교육에서의 스토리텔링 방식 적용을 위한 소재 연구: 지수용육도와 지수귀문도를 중심으로)

  • Park, Kyo-Sik
    • Journal of the Korean School Mathematics Society
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    • v.15 no.1
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    • pp.155-169
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    • 2012
  • In this paper, we explored the possibility that JiSuYongYukDo and JiSuGuiMunDo which were posed by Suk-Jung Choi can be used for storytelling. Firstly, from the solutions of JiSuYongYukDo and JiSuGuiMunDo which were offered by Suk-Jung Choi, students can inquire out finding four characteristics such as: He chose expected values as magic numbers, used pairs of two complementary numbers, there are independent four pairs of numbers which do not affect other pairs, and the array which exchange every two complementary numbers in certain solution is also solution. Secondly, in case of JiSuYongYukDo students can inquire out finding six numbers that satisfy certain condition instead of finding solutions, and in case of JiSuGuiMunDo students can inquire out finding eleven numbers that satisfy certain conditions instead of finding solutions. And through this strategy, they know that Suk-Jung Choi style solutions can be obtained variously in one's own way without undergoing many trials and errors.

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The thought of numerical theory of $Sh\grave{a}o$ $K\bar{a}ngji\acute{e}$ and it's influence on (소강절의 수론 사상과 <구수략>에 미친 영향)

  • Jung, Hae-Nam
    • Journal for History of Mathematics
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    • v.23 no.4
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    • pp.1-15
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    • 2010
  • We study the thought of numerical theory of $Sh\grave{a}o$ $K\bar{a}ngji\acute{e}$. He explained the change of universe and everything in his theoretical system in tradition of . It is contained in his . We conjecture that this book influenced . Choi Suk Jung tried to embody the ideas of $Sh\grave{a}o$ $K\bar{a}ngji\acute{e}$ in .

Finite Series in Chosun Dynasty Mathematics (조선(朝鮮) 산학(算學)의 퇴타술)

  • Hong Sung-Sa
    • Journal for History of Mathematics
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    • v.19 no.2
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    • pp.1-24
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    • 2006
  • We study the theory of finite series in Chosun Dynasty Mathematics. We divide it into two parts by the publication of Lee Sang Hyuk(李尙爀, 1810-?)'s Ik San(翼算, 1868) and then investigate their history. The first part is examined by Gyung Sun Jing(慶善徵, 1616-?)'s Muk Sa Jib San Bub(默思集算法), Choi Suk Jung(崔錫鼎)'s Gu Su Ryak(九數略), Hong Jung Ha(洪正夏)'s Gu Il Jib(九一集), Cho Tae Gu(趙泰耉)'s Ju Su Gwan Gyun(籌書管見), Hwang Yun Suk(黃胤錫)'s San Hak Ib Mun(算學入門), Bae Sang Sul(裵相設)'s Su Gye Soe Rok and Nam Byung Gil(南秉吉), 1820-1869)'s San Hak Jung Ei(算學正義, 1867), and then conclude that the theory of finite series in the period is rather stable. Lee Sang Hyuk obtained the most creative results on the theory in his Ik San if not in whole mathematics in Chosun Dynasty. He introduced a new problem of truncated series(截積). By a new method, called the partition method(分積法), he completely solved the problem and further obtained the complete structure of finite series.

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A study on various non-regular magic squares (정사각형 형태가 아닌 마방진에 대한 고찰)

  • Lee, Kyung-Eon
    • Communications of Mathematical Education
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    • v.24 no.1
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    • pp.195-220
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    • 2010
  • The magic square is one of the number arrangements and the sums of each row, column, and diagonal are all equal. The meaning of "方" is "Square". If we don't consider the condition of 'square' then is it possible any number arrangement? There are many special number arrangements such as "magic five number circle(緊五圖)", "magic six number circle(聚六圖)", "magic eight number circle(聚八圖)", "magic nine number circle(攢九圖)", "magic eight camp circle(八陣圖)", "magic nine camp circle(連環圖)" in the ancient Chinese mathematics books such as "楊輝算法", "算法統宗". Also, there is a very special and beautiful number arrangement Jisuguimoondo(地數龜文圖) in the mathematics book "Goosuryak(九數略)" written by Choi suk jung(崔錫鼎) in the Joseon Dynasty. In this study, we introduce a various number arrangements and their properties.

Dynamics Analysis of Concrete Bridges at Expansion Joints Considering Pounding (신축이음부에서 충돌을 고려한 콘크리트 교량의 동적해석)

  • Choi, Suk-Jung;Yoo, Moon-Sig;Jeon, Chan-Ki;Park, Sun-Kyu
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.5 no.1
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    • pp.176-187
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    • 2001
  • Most bridges have expansion joints to accommodate thermal expansion and contraction without inducing large forces in the bridges. To evaluate the effects of earthquake-induced at expansion joints of concrete bridges, the first part of this paper deals with a collinear impact between concrete segments, which have the same cross section but different lengths. Especially, impact force, momentum, strain energy and kinetic energy are formulated in mathematically. These results are then used in the second part of this paper to simulate a realistic yet simple analysis of seismic pounding in concrete bridges. Analysis of seismic pounding in idealized concrete bridges is carried out by using a simple lumped-mass model and rationally determined values of the coefficient of restitution and the duration of impact.

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QCM biosensor for the determination of haptoglobin (헵토글로빈 측정을 위한 수정미소저울 바이오센서 개발)

  • Kim, Sung-Il;Lee, Hyeon-Jeong;Park, Soon-Hyuk;Bhang, Hyun-Soo;Lee, Jin-Ah;Choi, Suk-Jung
    • Journal of Sensor Science and Technology
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    • v.16 no.2
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    • pp.132-141
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    • 2007
  • The purpose this research is to develop QCM (quartz crystal microbalance) biosensor for the determination of haptoglobin. Haptoglobin is an acute-phase protein with a hemoglobin-binding activity and has a potential to be used as a biomarker for infection or cancer. Haptoglobin level in milk has been used for the diagnosis of cow mastitis. In this study, anti-bovine haptoglobin antibody or bovine hemoglobin was chemically immobilized on the surface of the QCM, and the resulting sensor chips were tested for their response to samples containing haptoglobin at different concentrations. Concentration dependent frequency change was observed with both of the sensor chips. Especially, the sensor chip containing anti-bovine haptoglobin antibody showed sufficient sensitivity in the concentrations typically observed in the cows with mastitis.

Immunoassay of haptoglobin and transferrin with proteinG-containing QCM sensor chip and unpurified antiserum (Protein G를 포함하는 수정미소저울 센서 칩과 정제되지 않은 항혈청을 이용한 헵토글로빈과 트랜스페린의 면역분석)

  • Ha, In-Young;Choi, Suk-Jung
    • Journal of Sensor Science and Technology
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    • v.17 no.5
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    • pp.380-386
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    • 2008
  • Quartz crystal microbalance immunosensor has a capacity to perform a label-free and real time detection of a trace amount of analyte through the specific interaction between antibody and antigen. However, immobilization of antibody molecules on the sensor surface is a troublesome procedure for researchers who are not experienced in chemistry. Protein G has a specific affinity to antibody and would serve as a capturing agent for antibody when immobilized on the sensor surface. In this work, we prepared a protein G sensor chip by immobilizing protein G on the surface of quartz crystal microbalance and examined its capability to detect human haptoglobin or human transferrin with unpurified corresponding antiserum. Specific and dose dependent response was observed when the protein G chip was used for detection of antigens after saturated with antiserum. We also verified several advantageous aspects of the protein G chip such as improved flexibility and sensitivity.

Detection of human and bovine haptoglobin by using quartz crystal microbalance sensor chip containing secondary antibody (이차항체를 포함하는 수정미소저울 센서 칩을 이용한 사람과 소의 헵토글로빈 측정)

  • Kim, Sung-Il;Ha, In-Young;Choi, Suk-Jung
    • Journal of Sensor Science and Technology
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    • v.18 no.2
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    • pp.160-167
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    • 2009
  • In this study, secondary antibody-containing quartz crystal microbalance(QCM) sensor chip was prepared and utilized for the detection of human and bovine haptoglobin. Anti-goat immunoglobulin G antibody, which is a secondary antibody capable of capturing primary antibodies raised in goat, was immobilized through the reaction between hydrazide and aldehyde group prepared on the QCM surface and antibody respectively. The resulting sensor chip showed higher stability in the repeated surface regeneration with acidic dissociation solution as well as requiring lower amount of primary antibody when compared to the protein G sensor chip. The secondary antibody sensor chip was applied for the estimation of bovine and human haptoglobin.