프로야구 리그십, 그 빛과 그림자

손윤 한국스포츠정책과학원(구 한국스포츠개발원) 2017 스포츠과학 Vol.141 No.-

Systematic and Consistent Ferromagnetism in InMnP:Zn Bilayers for Various Mn Concentrations and Annealing Temperatures

손윤,윤임택,이세준,Y. H. Kwon,윤종승,박창수,이철진,이동진,H. S. Kim,강태원 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.63 No.11

The p-type InP:Zn epilayers were prepared by using metal-organic chemical vapor deposition,and Mn was subsequently deposited onto the epilayer by using molecular beam epitaxy. The p-typeInMnP:Zn epilayers were annealed at relatively low temperatures of 200 - 350 C and contained nosecondary phases such as InMn, MnP, and MnO2, as verified by x-ray diffraction. However, minutepresence of MnO2 was confirmed using transmission electron microscopy, which agreed with themagnetic properties measured by using a superconducting quantum interference device (SQUID). From the SQUID measurements, consistent and systematic ferromagnetic properties with clearferromagnetic hysteresis loops were observed. The Curie temperature, TC, which persisted up to 180 K, was recorded depending on the Mn concentrations and annealing temperature. Theseresults indicate that the ferromagnetic semiconductor InMnP:Zn can be fabricated at a very lowannealing temperature without forming ferromagnetic precipitates except for MnO2.

Formation of the Ferromagnetic Semiconductor InMnP:Zn through Low-temperature Annealing by Using Mn/InP:Zn Bilayer

손윤,이세준,윤임택,강태원,이영민,김득영,윤종승,박창수 한국물리학회 2012 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.61 No.7

The ferromagnetic semiconductor <I>p</I>-type InMnP:Zn epilayers were prepared by low temperature annealing at 250 ℃ using Mn/InP:Zn bilayers. The <I>p</I>-type InP:Zn epilayers were prepared by metal-organic chemical vapor deposition. Then, the ultra thin Mn layer was subsequently deposited onto the layers using molecular beam epitaxy. The Mn/InP:Zn bilayers were annealed at low temperature of 250 ℃ in order to minimize the formation of precipitates such as InMn, MnP, Mn<SUB>2</SUB>P, and Mn<SUB>3</SUB>In. No ferromagnetic precipitates were observed in the annealed sample InMnP:Zn; however, the sample exhibited an antiferromagnetic phase of MnO<SUB>2</SUB> that might be formed because of an unavoidable surface oxide created during the sample transfer. Despite the existence of antiferromagnetic MnO<SUB>2</SUB>, the samples revealed clear ferromagnetic hysteresis loops and showed high ferromagnetic transition temperature up to ~180 K. The results suggest that the ferromagnetic semiconductor InMnP:Zn can be effectively formed through low temperature annealing using a Mn/InP:Zn bilayer.

보은 동학민회와 북접의 정체성에 관한 연구

손윤 동학학회 2018 동학학보 Vol.0 No.49

The purpose of this study is to reveal the history of The Donghak Revolution on March 10, 1893, through a study of the identity of Boeuncivic(North fold owner, Choi-shihong), The Donghak Revolution was not a one-time event that happened accidentally, but it was a pharmacist of Korean Minjok implied Korean traditional ideas, culture, and philosophy. In The Donghak Revolution, I clarified the identity of the South-Fold, and I studied the identity of the North fold and Donghak. In 1860, when studying Donghak, it was based on the first articles such as the history of Suhwon and the records of the North fold owner Choi-shihong and the trend of Donghak army during The Donghak revolution in 1894. The meeting in Boeun is that it should be defined as the Boeun-civic, and the North fold is a different name of the Donghak or Donghak religious order. The first is that the meeting in Boeun is done by the feed, and the installation of the the Zipkang station which was carried out immediately after the Jeonju explosion was the practice of the assembly. The second is the fact that in the year of 1863, Choi-jewoo appointed to his disciples Choi-shihong as the North fold owner, and even after 1904, when Donghak revolutionary period (1893 ~ 1895) Even if you look at the papers that have been published, it is a transitory term that corresponds to the South-Fold, and is the identity of the Donghak or Donghak religious order itself. The result of this study is that it is the study which secured the objectivity such as history and identity of the North fold covering the whole country. 이 연구의 목적은 동학혁명에 관한 연구를 통해, 1893년 3월 10일 해월 최시형이 북접대도주의 지위로 보은 장내리에 전국의 동학교도들에게 소집령을 내린 보은취회(보은 민회로 정의)의 역사성과 정체성 연구를 통해, 동학혁명이 우연하게 일어나 단발적인 사건이 아닌, 한민족의 전통 사상과 문화, 철학이 함축된 민본의 역사임을 밝히고, 존재성에 관해 남접의 정체를 밝히면서, 북접과 동학교단의 정체성을 중심으로 연구하였다. 이에 대한 연구방법은 도원기서 등 동학창시 당시 수운의 행적 등의 참고 문헌과 동학혁명 당시 북접법헌이었던 최시형의 동학군 동향 등 1차 사료와 문헌 등을 인용하여 서술하였다. 이 연구의 내용은 보은취회는 동학민회로 정의하여야 하며, 북접은 동학또는 동학교단의 다른 이름이라는 점이다. 첫 번째는 보은에서의 집회는 사료에 의해 맞고, 전주화약 직후 실시했던 집강소 설치 운영이 민회의 실천이라는 것이다. 두 번째는 북접은 1863년 7월에 최제우가 제자 최시형에 북도중주인, 즉 북접주인이라고 임명한 사실로 시작하여, 동학혁명 기간(1893~1895) 이 끝난 후인 1904년 이후에도 의암 손병희가 북접법대도주로 첩지를 내린사료를 보아도 북접은 남접에 대응하는 일시적 용어가 아니며, 동학 또는 동학교단의 정체성이며, 동학혁명을 지휘한 북접대도소, 즉 동학지휘부를 지칭하는 용이다. 이 연구의 결과는 전국을 망라하여 동학혁명을 총지휘했던 북접의 역사성과 정체성 , 용어 정의 등을 새롭게 연구하였다는데 의의가 있다.

Structural, Optical, and Magnetic Properties Related to p-type InMnP:Zn Epilayers with Curie Temperatures of Tc1 ~ 50 K and Tc2 ~ 291 K

손윤,윤임택,이세준,H. C. Jeon,Y. H. Kwon,T. W. Kang,박창수,H. S. Kim,임권택,최병춘,정중현,송태권 한국물리학회 2012 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.61 No.8

p-type InP:Zn epilayers were grown by metalorganic chemical vapor deposition. After the growth of InP:Zn epilayers, Mn was evaporated on top of InP:Zn epilayers using molecular beam epitaxy system. And then, Mn was diffused into InP:Zn epilayers by annealing. InMnP:Zn epilayers annealed at 600 ℃ for 60 s with the Mn concentration of both ~1.5 and ~3.0%. The optical transitions related to Mn appeared at 1.144, 1.187, 1.212 eV and 1.143, 1.179, 1.205 eV for InMnP:Zn epilayers annealed at 600 ℃ for 60 s with Mn concentration ~1.5 and ~3.0%, respectively. Transitions related to Mn are noticeably activated due to the increase of Mn concentration near 3.0 % in comparison with transitions with the Mn concentration near 1.5%. Clear ferromagnetic hysteresis loops were obtained for InMnP:Zn epilayers. Ferromagnetic hysteresis loop of InMnP:Zn epilayers annealed with the Mn concentration near 3.0% was bigger than that 1.5 % and these results agree with PL results that transitions related to Mn are remarkably activated at the annealing temperature with the Mn concentration near 3.0% in comparison with that 1.5 %. Ferromagnetic behavior persisted up Tc<SUB>1</SUB> ~ 50 K and Tc<SUB>2</SUB> ~ 291 K. Tc<SUB>2</SUB> ~ 291 K corresponds to MnP. Tc<SUB>1</SUB> ~ 50 K is originated from intrinsic InMnP:Zn, which is caused by carrier-mediated ferromagnetism in InMnP:Zn epilayer. It is found that a ferromagnetic semiconductor at Tc<SUB>1</SUB> ~ 50 K can be formed in diluted magnetic semiconductor based on InMnP:Zn epilayers additionally co-doped with Zn.

Structural, Optical, and Magnetic Characteristics of an InMnP:Zn Epilayer

손윤,H. C. Jeon,이세준,이승주,강태원,Jin Soak Kim,김은규,윤종승,이정주 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.50 No.3

p-type bulk InP was prepared by using the liquid encapsulated Czochralski method and was subsequently diffused with Mn by heat treatment after the evaporation of Mn on top of InP:Zn by using a molecular beam epitaxy system. The characteristics of Mn-diffused InMnP:Zn were investigated by using an energy dispersive X-ray spectroscopy, transmission electron microscopy, photoluminescence, and a superconducting quantum interference device magnetometer measurements. The compositional results for the energy dispersive X-ray peak showed an injected concentration of Mn of 3 \%. The samples were structurally characterized by transmission electron microscopy with selective area diffraction patterns, and no evidence of secondary phase formation was found in the InMnP:Zn epilayer. The results of the photoluminescence measurements showed that broad optical transitions related to Mn appeared near 1.17, 1.21, and 1.24 eV and confirmed that the transitions around 1.2 eV were due to a Mn-related band caused by the diffusion of Mn into InP:Zn. Clear ferromagnetic hysteresis loops were observed at 10 and 300 K, and the temperature-dependent magnetization showed ferromagnetic behavior persisting up to 300 K, which was caused by carrier-mediated ferromagnetism in InMnP:Zn. We found that a ferromagnetic semiconductor can be formed at room temperature in a diluted magnetic semiconductor based on GaMnN and InMnP additionally co-doped with Mg and Zn, respectively.

갈등유형별 반응시간의 차이

손윤 中央大學校 1984 心理學硏究 Vol.12 No.1

인공 망막 장치용 삽입형 마이크로 전극의 단면 모양에 따른 전류 자극 특성 비교 연구

손윤서(Yunseo Son),엄정현(Jeonghyeon Eom),노현희(Hyeonhee Roh),이병철(Byung Chul Lee),임매순(Maesoon Im) 대한전자공학회 2022 대한전자공학회 학술대회 Vol.2022 No.6

Triflusal과 Ibudilast 동시처리에 의한 혈소판응집 및 혈액응고 억제효과

황인영(In Young Hwang),손윤아(Yoon Ah Sohn),황선아(Seon A Hwang),구연경(Yean Kyoung Koo),김선영(Sun Young Kim),윤혜숙(Hye Sook Yun-Choi),권순경(Soon Kyoung Kwon),정춘식(Choon Sik Jeong) 대한약학회 2012 약학회지 Vol.56 No.4

This study aims to develop a novel regimen for enhanced efficacy and reduced side effect in inhibiting platelet aggregation and blood coagulation by concurrent administration of triflusal and ibudilast as anticoaggulants. The result shows this combination of triflusal and ibudilast (300~500 μM, respectively) has additive effect in inhibiting platelet aggregation and blood coagulation over the administration of truflusal or ibdilast as a single treatment. This pharmaceutical composition is expected to be useful for the prevention or treatment of various diseases and symptoms, for example, ischemic heart disease, ischemic cerebral infarction, arteriosclerosis, and thrombosis caused by the insertion of a stent.

조세·법률·회계 서비스의 국제경쟁력 제고 방안 - 이종자격사간 동업(MDP)을 중심으로 -

손윤 ( Yun Son ),이학노 ( Hak-loh Lee ) 한국통상정보학회 2017 통상정보연구 Vol.19 No.4

글로벌 무한경쟁의 시대에서 한국 상품의 경쟁력 하락에 대한 우려의 목소리가 높아지고 있다. 또한 서비스 분야의 미흡한 경쟁력 제고가 필요하다는 해묵은 지적이 있다. 그러나 정작 서비스 분야의 경쟁력 제고를 위한 노력과 성과는 찾아보기 어렵다. 그 원인의 하나는 서비스 분야의 영역이 분할되고 포획시장이 존재함으로써 이해관계를 가진 각 전문가 그룹이 시장의 해체 또는 규제 완화에 대하여 찬성하지 않기 때문이라고 할 수 있다. 이 연구는 이종자격사간의 동업(MDP)을 허용, 경쟁을 촉진하면 전문 서비스 분야의 경쟁력이 제고 될 수 있다는 전제에서 출발하고 있다. 논리적 추론을 위하여 이종자격사간 동업이 허용될 경우 서비스의 가격이 낮아지고 서비스의 공급량이 많아진다는 이론적 분석결과를 도출하였고 MDP를 시행중인 주요국의 사례를 제시하고 있다. 아울러 관련 실증분석을 수행하였다. 잠정적인 결론으로 우선 문제의 소지가 비교적 작은 조세·법률·회계 분야에서 MDP를 도입하고 중장기적으로 다른 분야에까지 MDP를 확대할 것을 제안한다. 이 연구에는 여러 한계가 있다. 국제경제학 이외에 세무, 법률, 회계 분야에 대한 소양이 충분치 못하였고 관련 기업들의 경영 성과 지표 확보도 용이치 않았다. 아울러 실증분석에서 통제변수들을 분별해 내는 것도 쉽지 않았음을 밝혀 둔다. 그러나 잠정적인 결론이 변하지 않을 것으로 믿고 있다. There have been growing concerns that Korea's products keep losing their international competitiveness. It is necessary to restore strong muscles of manufacturing sectors. Together, efforts must be made to strengthen the competitiveness of service sector. While wide consensus has been reached on the necessity that Korea's service sector needs overhaul for stronger global competitiveness, it is rather difficult to witness any remarkable improvements. Insufficient performances might result from the protection of the captive markets by the interested parties. The research starts from the proposition that the introduction of MDP will bring down the barriers between the segmented services and promote competition. We provide theoretical analyses and report better performances of major countries which introduced MDP in their soils. Considering the reality, we propose that in the foreseeable future, a MDP in the areas of tax, law and accounting be introduced in Korea because these areas seem to create least conflicts of disciplinary duties due to public purposes. Broader MDPs in other areas may take some more time. There exist, however, some limitations. As MDP has not been officially introduced in Korea, it is almost impossible to directly compare the performances between the pre- and post-MDP in Korea. Data scarcity of business performances of companies also limits the study.