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체육계열 교육대학원생의 학위논문쓰기 경험에 관한 이야기
장승현,하제현 한국체육교육학회 2018 한국체육교육학회지 Vol.22 No.4
Purpose: The purpose of this study is to help to understand the experiences of graduate students in physical education and to provide a chance for wide discussion on teaching methods for graduate students in physical education. Methods: This study used the narrative research method. The participants were selected by snowball sampling, the data was collected and analyzed through interview. Results: the experiences by students at graduate school of education can be described as fear, pain and relief in time. When they experience the thesis for the first time as freshmen, they felt the feeling of frustration, fear in a time sequence, when they don’t feel the necessity of thesis and they feel the difficulty of thesis during thesis writing, they felt the pain. Finally, after completing the dissertation writing, they thought that the thesis was obstacle and felt relief rather than sense of accomplishment. Conclusion: It was found that confirming the writing of dissertations is ignored by ignorance, inexperience and lack of necessity. 본 연구는 체육계열 교육대학원생들의 경험을 이해하는데 도움을 주고 나아가 교육대학원생에 대한 논문지도방법에 대한 폭넓은 논의의 계기를 마련하는데 그 목적이 있다. 본 연구는 내러티브 연구방법을 사용하였다. 연구참여자를 스노우볼샘플링에 의해 선정하였으며, 면담을 통해 자료를 수집하고 분석하였다. 그 결과, 체육계열 교육대학원생의 학위논문쓰기의 경험은 시간적으로 두려움, 고통, 안도감의 감정을 느끼는 경험이었다. 차례로 살펴보면, 먼저 교육대학원생들은 신입생으로 논문을 처음 접하게 되며 막막함, 두려움의 감정을 느끼고 있었고 학위논문쓰기가 진행되면서는 논문자체가 주는 어려움과 논문쓰기의 필요성을 느끼지 못함에 따라고통의 감정을 느끼고 있었다. 마지막으로 학위논문쓰기를 마무리하고는 교육대학원생들이 논문을 장애물이라여기며 성취감보다는 안도감을 느끼고 있었다. 결국, 우리는 학위논문쓰기가 무지와 무경험 그리고 필요성의결핍에 의해 점철되는 것임을 확인할 수 있었다.
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장승현 동국대학교 대학원 1980 大學院硏究論集-東國大學校 大學院 Vol.10 No.-
The indicator which has discriminated every chemical weapons has always red color, reacting to chemical weapons. The disazo dyes newly synthesized in this study has a remarkable distinction in color. The 2.5.2´.5´-Tetramethyl triphenyl methane 4.4´-diazo-bis-beta hydroxy naphthoic anilide has clear red color, reacting to blister reagent. The thiodiphenyl-4.4´-diazo-bis-salicylic acid has obvious yellow color, reacting to nerve reagent. When using the two disazo dyes, it's possible to know the kinds of chemical weapons.
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쿠마린을 갖고 있는 크라운 에테르의 합성과 그의 결합 특성
장승현,이관영 대구대학교 산업기술연구소 2003 産業技術硏究 Vol.15 No.1
We report herein synthetic results obtained new types of crown ethers containing coumarin group. Crown ethers containing coumarin group 1 -3 are hydroxymethyl-15-crown-5-ether linked with 4-hydroxy coumarin-4-acetic acid by esterification reaction. Crown ethers containing coumarin group 1-3 have different cavity in each crown ether rings. The 12-crown4 ether with coumarin i has the smallest cavity size. The 18-crown-6 ether with coumarin 3 has the largest cavity size. Therefore each crown ether with coumarin group will recognize different ionic radius metal. The crown ethers with coumarine I --3 synthesized hydroxymethyl-l5-crown-5-ether and 4-hydroxy coumarin-4-acetic acid same ratio at one to one. The synthesized crown ethers were characterized respectively by IR, NMR. GC-Mass.
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장승현 대구대학교 (한사대학) 산업기술연구소 1992 産業技術硏究 Vol.11 No.-
Functionalized crown compounds, particularly those which bear the hydroxy group or the methylene goups, serve as important intermediates for the synthesis of lariat crowns, bis-crowns, ionizable crowns, and polymer-supported catalysts. The systhesis of the 4'-vinyl derivatives of monobenzo-18-crown-6 are described in detail. Catechol diacetate was prepared by the procedure of Heller. 3, 4-Dihydroxyactophenone was synthesized by slightly modifying a procedure outlined by Rosemund. 4'-Acetobenzo-18-crown-6 as prepared by 1, 14-dichloro-3, 6, 9, 12-tetraoxatetradecane and 3, 4-dihydroxyacetophenone. 4'-(1''-Hydroxyethyl) bezo-18-crown-6 was prepared by 4'-acetobenzo-18-crown-6 and NaBH₄. 4'-Vinylbenzo-18-crown-6 was prepared by 4'-(1''-hydroxyethyl) benzo-18-crown-6 and p-toluene sulfonic acid.
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Slag를 위주로 한 Glass-Ceramics 의 물리적 성질에 관한 연구
장승현,정형진 한국세라믹학회 1980 한국세라믹학회지 Vol.17 No.1
The synthesis of glass-ceramic materials from glasses based on industrial wastes or natural rocks their physical properties were studied. Glasses of composition, CaO14.7∼16.1, MgO7.4∼9.0, Al2O38.3∼19.3, SiO2 48.9∼51.0wt% were prepared from domestic blast furnace slag, serpentine, sea sand and etc. with additions of chromic oxide, and fluoride as nucleating agent. The glasses were subjected to controlled heat treatments and yielded fine microstructure of glass-ceramics which were composed of monocrystalline phase of aluminous diopside. X-ray diffraction techniques were adopted to identify the crystalline phases and to determine the degree of crystallization quantitatively. Density, coefficient of thermal expansion, young's modulus, microhardness and modulus of rupture were measured and the resulting properties were discussed in terms of the heat-treatment conditions, the degree of crystallization, species of crystaline phase, the microstructures formed in glass-cramics and the chemical compositions of mother glasses.
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Fe3+에 선택성이 있는 로다민을 포함하는 크라운 에테르 chemosensor 합성
장승현,최진욱,정광보 한국화상학회 2012 한국화상학회지 Vol.18 No.2
4'-formylbenzo-15-crown-5와 RHD, RED의 반응에 의해 새로운 두 종류의 크라운 에테르 RHDC 와REDC를 합성하였다. RHD, RED는 로다민 6G와 hydrazine, ethylenediamine을 이용하여 합성하였다.합성된 화합물들에 여러 가지 금속 양이온을 첨가하여 선택적인 형광 인식 특성을 알아보고, 형광 센서로서의 가능성에 대해 검토하였다. 합성된 화합물의 금속 인식 특성을 형광스펙트럼으로 측정한 결과 형광이 증가하였으며 Fe3+ 대한 인식이 가장 좋았다. New two crown ether RHDC and REDC have been synthesized by the reaction of 4'-formylbenzo-15-crown-5 with RHD and RED, respectively. RHD and RED were prepared from the reaction of rhodamine 6G with hydrazine and ethylenediamine, respectively. To investigate the features of selective fluorescence recognition, various cations were added into the synthesized compounds, and studied of there's possibility as the fluorescent sensors. Metal recognition characteristics of RHDC, REDC and the other compounds were measured with a spectra of fluorometer. Fluorescence intensity were increased and showed the better recognitive ability with Fe3+ than any other cations.
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