고분자 착체 조합 화학법을 이용한 Tb이 첨가된 $SrO-Gd_2O_3-Al_2O_3$계 형광물질의 합성 및 탐색

정양선,김창해,박희동,박준택,강성권,Jeong, Yang Sun,Kim, Chang Hae,Park, Hee Dong,Park, Joon Taik,Kang, Sung Kwon 대한화학회 2001 대한화학회지 Vol.45 No.5

조합화학은 한번에 여러 후보 물질을 소량 합성하여 원하는 물성을 갖는 물질을 탐색하는 기술이다. 본 연구에서는 고분자 착체 조합 화학법을 이용하여, 터븀이 도핑된 $SrO-Gd_2O_3-Al_2O_3$계에 대한 형광 물질을 합성하고 특성을 검색하였다. 합성 실험은 세 성분의 조성이 약 0.05몰씩 차이를 갖게하되 모든 금속 이온 당량의 합이 1몰이 되도록 작성한 조성표에 따라 금속이온 용액, 구연산 용액 및 에틸렌 글리콜 용액을 사용하여, 고분자 착체 전구체를 형성하는 Pechini법으로 합성하였다. 합성된 전구체를 1000~1500$^{\circ}C$로 열처리한 후 제조된 분말을 UV PL(Photoluminescence)과 VUV(Vacuum-UV: 147nm) PL로 측정하여 그 특성을 검토하였다. 또한 합성된 분말의 결정성과 입자형상은 XRD와 SEM을 이용하여 확인하고 관찰하였다. UV PL 측정 결과, 240nm 여기하에서는 $Sr_{0.6}Gd_{0.12}Al_{0.17}Tb_{0.1}$$O_{\delta}$, 275 nm 여기하에서는 $Sr_{0.03}Gd_{0.89}Al_{0.03}Tb_{0.06}O_{\delta}$와 $Sr_{0.6}Gd_{0.12}Al_{0.17}Tb_{0.1}O_{\delta}$ 그리고 307nm 여기하에서는 $Sr_{0.03}Gd_{0.89}Al_{0.03}Tb_{0.06}O_{\delta}$의 조성에서 543nm의 발광 세기가 크게 나타났다. 그리고 VUV PL 측정 결과는 $Gd_{1-x-y}Al_xTb_yO_{\delta}$: 0.595 < x < 0.733, 0.016 < y < 0.017 그리고 $Sr_xAl_{1-x-y}Tb_yO_{\delta}$: 0.049 < x < 0.064, 0.02 < y < 0.039의 조성범위에서 345nm 의 발광세기가 크게 나타났다. 이 조성의 녹색 형광체는 plasma display panel에 적용 가능하다. The combinatorial approach has been applied to discover and optimize the composition of the novel or enhanced materials. In this study, we screened the optimum composition of the system SrO-Gd$_2$O$_3$-Al$_2$O$_3$ doped with $Tb^{3+}$ by a polymerized-complex combinatorial chemistry method. Mixtures with compositions of Sr, Gd and Al component that is in the range from 0 to 1 in about 0.05 increments could be tested. The sample powders were synthesized by a polymerized complex method. To prepare appropriately polymeric precursors, we used the metallic nitrates, citric acid and ethylene glycol. The luminescence properties of the synthesized powders are investigated using the UV and VUV (Vacuum-UV: 147 nm) photoluminescence spectrometer. In addition, the crystallinity and morphology of powder were monitored by X-ray diffraction spectrometer and scanning electron microscopy. In result of VUV PL works, there are good luminescent samples with the composition of 0.595 < x < 0.733 and 0.016 < y < 0.017 in Gd1-x-yAlxTbyO$\delta$ and 0.049 < x < 0.064 and 0.02 < y < 0.039 in $Sr_xAl_{1-x-y}Tb_yO_$\delta$$, their materials can be applicable to plasma display panels as the green phosphor.

다양성 교육과 연계한 학교조직을 통한 배움공동체 평생학습인 기르기

정양선 한국미래교육학회 2016 미래교육연구 Vol.6 No.3

요즘 세상의 화두는 로봇과 인간이 세기의 대결을 펼쳐 인간이 졌다는 사실이다. 인간에 의해 만들어진 로봇 친구, 로봇 애인이 등장하고 수만 광년 떨어져 있는 별에도 가고 있다. 인공지능을 포함한 과학의 발달은 결국 융합하고 생략하며 펼치고 협력하며 상상할 줄 아는 인간이라는 사실이다. 인간은 스스로 생각하고 공부하며 배우고 학습할 수 있는 인류의 단 하나의 생명체이다. 앞으로 우리들의 미래교육은 어떻게 해야 할까? 학교의 역할에 대해 다시 생각해 보게 된다. 인간은 태어나면서부터 생태적으로 배우고 성장하며 죽을 때 까지 학습한다. 이러한 학습을 좀 더 체계적이고 즐겁게 즐기면서 소통 과 경쟁과 협력속에서 배울 수 있게 만드는 곳이 학교이다. 학습의 즐거움을 학교에서 터득하고 온 마을과 지역이 함께 배우고 가르치는 작업을 학교를 통해 시스템화 하고자 한다. 도전하며 즐겁게 배울 줄 아는 배움의 과정을 즐길 수 있는 평생학습인 육성을 목표로 이 연구를 시작하였으며 학교의 인적∙물적 자원을 활용하여 훨씬 더 쉽게 평생학습인을 기르고 배움공동체를 형성할 수 있는 무한한 가능성을 가진 학교로 재구성하여 목표한 소기의 성과를 거두었다. These days, it is a real issue that mankind has lost at the confrontation with robots. Robots for friends, lover are appearing and we can go universe with robots. The development of science which includes artificial intelligence can make a human being who can combine, cooperate and imagine. Mankind can think and learn alone. What should we do for a future education? We should think again about the roles of school. Mankind is essentially a lifelong learner. School can make lifelong learning more fun, instructive and systematic. Also, school can help a lifelong learner to learn communication, competition and cooperation. I want to make a system which can teach each other in town and region and give a love of learning. It can come true with school. I started this research for raising lifelong learner who are passionate, pleasant in process of learning. Also, I achieved the desired results by reorganizing a school which is full of infinite possibilities. Using a school’s human resources and material resources was helpful to achieve the results.

Disciplinary Session 7 / Special Physical Education / Instruction in Special Physical Education : 신체활동 중심 교수법이 정신지체아의 수학기초개념 학습과 실생활 활용에 미치는 효과

정양선,이인경 ( Yang Sun Jung,In Kyung Lee ) 한국체육학회 1998 국제스포츠과학 학술대회 Vol.1998 No.1

결명자 새싹의 재배 방법과 수확 시기에 따른 항산화 활성

정양선(Yang Sun Jeong),양창열(Chang Yeol Yang),전제승(Je Seung Jeon),이영섭(Young Seob Lee),김관우(Kwan Woo Kim),강용구(Young Gu Kang),이문순(Moon Soon Lee),이윤지(Yoon Ji Lee) 한국약용작물학회 2023 한국약용작물학회지 Vol.31 No.6

Growth Characteristic and Antioxidant Activity by Cultivation Conditions of Senna tora Sprout

Yang Sun Jeong(정양선),Seung Eun Lee(이승은),Saet Byul Park(박샛별),Moon Soon Lee(이문순),Yoon Ji Lee(이윤지) 한국약용작물학회 2022 한국약용작물학회 학술대회논문집 Vol.2022 No.1

한국,일본,대만의 중등학교 과학교과서 생물학 용어의 비교

박인근,정양선 韓國生物敎育學會 2005 생물교육 Vol.33 No.1

In Korea there has been little done on research of biological scientific terminologies that form the core to understand the biological education of the three Far Eastern countries. The purpose of this research is to know how much biological scientific terminologies used in Korea are influenced by Japan and Taiwan. Also, the purpose of this survey is to know these countries how to accept biological scientific terminologies. The reciprocally comparison results of biological science terms among Korea, Japan and Taiwan secondary school textbook are followed; 1. The equally used biological science terms in Korea, Japan and Taiwan secondary school textbook is 29.8% level. 2. Even though the level of unique biological science terms used in Korea is approximately limited in 6.0%, the Korean biological science terms for Angiosperms, Bile, Cotyledon, Digestive gland, Growth in thickness, Inspiration and Expiration are helpful for the concept formation to the students, because these are expressed exclusively by Hangul, the Korean language. 3. Since the level of the equally used biological science terms between Korea and Japan is approximately to 83.5%, therefore the Korean biological science terms seems to be received a tremendous influence from the Japan. 4. We boldly suggest to accept "Dominant" as the active gene, "Recessive" as the inactive gene, "Autosome" as the common chromosome, "Haploid" as the mono-ploid. 5. 85% of Korean biological science terms are a word written in Chinese characters.

고상법에 의한 PDP용 고휘도 $Zn_2$$SiO_4$:Mn 형광체 제조

전일운,손기선,정양선,김창해,박희동,Jeon, Il-Un,Son, Gi-Seon,Jeong, Yang-Seon,Kim, Chang-Hae,Park, Hui-Dong 한국재료학회 2001 한국재료학회지 Vol.11 No.3

본 연구의 목적은 기존의 고상 반응법을 이용하여 일본의 상용 Zn$_2$SiO$_4$:Mn형광체보다 우수한 성능의 형광체를 제조하는데 있다. 이틀 위해 본 연구에서는 고상 반응법을 이용하여 Zn$_2$SiO$_4$:Mn 형광체를 합성하고, 이를 PDP(Plasma Display Panel)에 적용하기 위하여 소성온도 및 환원 온도와 주입되는 기체의 양, dopant Mn의 농도를 다양하게 하여 합성하였고, ball milling 등을 통하여 입자의 특성을 개선하는 실험을 하였다. 제조된 형광체의 발광특성 및 모양 등의 특성은 상용 Zn$_2$SiO$_4$:Mn 형광체와 비교하였다. Mn의 농도를 0.08mo1e로 하여 130$0^{\circ}C$에서 소성하였을 때 결정성 및 휘도가 가장 우수하였고, 환원시 5% H$_2$-96% N, 혼합가스의 양을 100ml/rnin으로 일정하게 주입시켰을 때 20%이상 휘도가 증가하였다. Ball rnilling은 30분 동안 100rpm으로 하였을 때 입자의 크기가 수십 $\mu\textrm{m}$에서 3$\mu\textrm{m}$이하로 줄어들었다. 특히. 발광 특성이 상용 형광체보다 월등히 우수하여 PDP에 적용할 수 있다 In this work, Zn$_2$SiO$_4$:Mn phosphors were prepared by solid state reaction. The effect of sintering/reduction temperature, flow rate of H$_2$-5%/$N_2$-95% mix gas, and ball milling conditions have been investigated on the sake of PDP(Plasma Display Panel) application. The characteristics such as particle morphology and photoluminescence of prepared phosphors were compared to those of commercial Zn$_2$SiO$_4$:Mn Phosphors. It was found that the Phosphor synthesized at 130$0^{\circ}C$ with 0.08 Mn concentration had a maximum brightness, This brightness was increased more 20% by reduction treatment under 100me/min flow rate of 5%H$_2$-95%$N_2$ mixed gas. The size of particles decreased under 3$\mu\textrm{m}$ after ball milling. Especially, higher luminescence was obtained in our Zn$_2$SiO$_4$:Mn phosphors than commercial Zn$_2$SiO$_4$:Mn phosphors, so that they are able to be applied for PDP.

포스터발표 P-C29 : 전자현미경을 이용한 플라이애쉬로부터 회수한 미연탄소분의 형태분석

안양규(Y . K . Ahn),정양선(I . L . Jeon),길대섭(T . S . Kil),양정일(J . I . Yang) 한국분석과학회 1999 학술대회논문집 Vol.- No.-

백출 육성품종 별 생육 및 성분 특성

정진태,이희정,이정훈,하보근,홍충의,이윤지,정양선,장재기,박춘근 한국약용작물학회 2018 한국약용작물학술대회 발표집 Vol.2018 No.05

Background : Atractylodes japonica koidz. (AJ) and Atractylodes macrocephala koidz. (AM) belong to Atractylodes genus (Asteraceae) and their rhizomes are used as traditional medicine ‘Baek-chul’. The ‘Baek-chul’ is considered to be effective for the treatment of stomach disorder, virus, diuresis, inflammation, arthritis and Atractylenolide I, Atractylenolide II and Atractylenolide III are the major active ingredients of these. Previously, we developed 8 hybrid cultivars with disease resistance, high yielding ability and high active ingredients by interspecific hybridization between AJ and AM. In this study, growth characteristics of 8 hybrid cultivars were investigated in RDA experimental field. Methods and Results : Growth characteristics of 8 hybrid cultivars were investigated in RDA experimental field. Among these cultivars, ‘Sanwon’ had the highest fresh weight of rhizome (149.5 g/plant), followed by ‘Dachul’ (145.8 g/plant). Most of hybrid cultivars showed higher fresh weight than and AM (108.7 g/plant). In addition, active ingredients (Atractylenolide I, Atractylenolide Ⅱ and Atractylenolide Ⅲ) were investigated using HPLC. As a result, The sum of active ingredients were the highest in ‘Dachul’ (0.40 ㎎/g) that was 2 times higher than AM (0.22 ㎎/g). Conclusion : In this study, hybrid cultivars showed higher agronomic performance than AM. Particularly, ‘Dachul’ could be the superior cultivar with high atractylenolides as well as high yield ability.

삽주 육성품종 간 생육특성 및 유효성분 분석

정진태,이희정,이정훈,홍충의,이윤지,정양선,이대영,이승은,장재기,하보근,박춘근 한국약용작물학회 2018 한국약용작물학회지 Vol.26 No.3

Background: Atractylodes japonica Koidz. and Atractylodes macrocephala Koidz. belong to the family (Asteraceae). Their rhizomes, called white Atractylodes rhizomes, are used in traditional medicine. To address some issues with their cultivation, we recently developed eight hybrid cultivars by interspecific hybridization of A. japonica and A. macrocephala. This study was conducted to screen the hybrid cultivars that have high amounts of active ingredients and yield ability. Methods and Results: Experiments were conducted using the eight hybrid cultivars and A. macrocephala (control cultivar) in the experimental field of the department of Herbal Crop Research located in Eumseong, South Korea. We investigated the growth characteristics of the aerial and underground parts. Among the cultivars, ‘Sanwon’ had the highest rhizome dry weight (53.8 g/plant), followed by ‘Dachul’ (50.0 g/plant). In addition, the content of atractylenolide I, II, III and total active ingredients were investigated using high-performance liquid chromatography. Compared with A. macrocephala, most of the inter-specific hybrid cultivars had a higher content of active ingredients and yield ability. Conclusions: Through study, we established the superior quality of Atractylodes inter-specific hybrid cultivars. In particularly, it was found that ‘Dachul’ may be grown as a superior cultivar, with high amount of active ingredients as well as yield ability.