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Kang, Ji-Hun,Wang, Sheng,Shi, Zhiwen,Zhao, Wenyu,Yablonovitch, Eli,Wang, Feng American Chemical Society 2017 NANO LETTERS Vol.17 No.3
<P>Two-dimensional surface polaritons (2DSPs), such as graphene plasmons, exhibit various unusual properties, including electrical tunability and strong spatial confinement with high Q-factor, which can enable tunable photonic devices for deep subwavelength light manipulations. Reflection of plasmons at the graphene’s edge plays a critical role in the manipulation of 2DSP and enables their direct visualization in near-field infrared microscopy. However, a quantitative understanding of the edge-reflections, including reflection phases and diffraction effects, has remained elusive. Here, we show theoretically and experimentally that edge-reflection of 2DSP exhibits unusual behaviors due to the presence of the evanescent waves, including an anomalous Goos-Hänchen phase shift as in total internal reflections and an unexpected even–odd peak amplitude oscillation from the wave diffraction at the edge. Our theory is not only valid for plasmons in graphene but also for other 2D polaritons, such as phonon polaritons in ultrathin boron nitride flakes and exciton polariton in two-dimensional semiconductors.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/nalefd/2017/nalefd.2017.17.issue-3/acs.nanolett.6b05077/production/images/medium/nl-2016-050772_0005.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/nl6b05077'>ACS Electronic Supporting Info</A></P>
Lee, Ji Ha,Lee, Jin Hyeok,Jung, Sung Ho,Hyun, Tae Kyung,Feng, Mingxiao,Kim, Jae-Yean,Lee, Jae-Hong,Lee, Hoyeon,Kim, Jong Seung,Kang, Chulhun,Kwon, Ki-Young,Jung, Jong Hwa The Royal Society of Chemistry 2015 Chemical communications Vol.51 No.35
<P>2-(<I>N</I>,<I>N</I>-Dimethylamino)naphthalene-based probe <B>1</B> was found to exhibit a dramatic enhancement in fluorescence upon addition of Zn<SUP>2+</SUP>, but not with any other metal ions. Probe <B>1</B> as a chemoprobe enabled high-resolution fluorescence imaging of zinc ions in HeLa cells and <I>Arabidopsis</I>.</P> <P>Graphic Abstract</P><P>2-(<I>N</I>,<I>N</I>-Dimethylamino)naphthalene-based probe <B>1</B> was found to exhibit a dramatic enhancement in fluorescence upon addition of Zn<SUP>2+</SUP>, but not with any other metal ions. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c5cc01364j'> </P>
김풍(Feng Jin),나승훈(Seung-Hoon Na),강인수(In-Su Kang),리금희(Jin-Ji Li),김동일(Dong-Il Kim),이종혁(Jong-Hyeok Lee) 한국정보과학회 언어공학연구회 2004 한국정보과학회 언어공학연구회 학술발표 논문집 Vol.16 No.1
“고유명사 식별”은 사전에 등록되어 있지 않은 고유명사를 찾아내고 분류하는 과정으로 주로 인명, 지명, 조직명을 처리 대상으로 한다. 처리할 데이터는 점점 많아지고 고유명사는 수시로 생겨나기 때문에 고유명사 식별은 정보검색, 질의응답, 기계번역시스템의 핵심 기술 중의 하나로 부각되었다. 고유명사 식별에 있어 정확률과 더불어 식별속도와 식별모듈의 크기가 시스템의 성능에 미치는 문제도 쟁점이 되고 있다. 본 논문에서는 SVM과 자질선택을 결합한 다양한 실험을 통하여 중국어 고유명사의 식별 효율을 높이는 방법을 연구하였다.
Molecular Characterization of A Novel Bacillus thuringiensis Strain from China
( Xu Feng Qi ),( Ming Shun Li ),( Jae Young Choi ),( Yang Su Kim ),( Yong Wang ),( Joong Nam Kang ),( Hee Kyu Choi ),( Yeon Ho Je ),( Ji Zhen Song ),( Jian Hong Li ) 한국잠사학회 2005 International Journal of Industrial Entomology Vol.11 No.1
A strain of Bacillus thuringiensis that showed significantly high toxicity to Plutella xylostella was isolated from a dust sample collected from Chinese tobacco warehouse and characterized. The isolate named B. thuringiensis LY-99 was determined to belong to subsp. alesti (H3a3c) by an H antisera agglutination test and produced bipyramidal inclusions. Plasmid and crystal protein patterns of the LY-99 were different from those of the reference strain, subsp. alesti. PCR analysis with specific primers revealed that this isolate contained abundant cry genes including cry1Aa, cry1Ac, cry1B, cry1D, cry1E, cry1F and cry2 genes, which was absolutely different from cry gene profile of the subsp. alesti. In addition, insecticidal activity of the LY-99 against P. xylostella larvae was about 44 times higher than that of the subsp. alesti.
Jin, Feng-Xue,Ji, Shi-Dong,Xie, Xiao-Bo,Kang, Ju-Won,Ju, Hong-Guang,Ahn, Sang-Nag Japanese Society of Breeding 2011 Breeding science Vol.61 No.1
<P>Grain weight (GW) is one of the most important targets for grain yield in rice breeding. In previous studies, two quantitative trait loci (QTLs) for GW, <I>gw8.1</I> and <I>gw9.1</I>, have been identified using progeny derived from a cross between the <I>japonica</I> cultivar Hwaseong and <I>Oryza rufipogon </I>(IRGC 105491). To test whether these quantitative trait loci (QTLs) have an epistatic interaction, we developed an F<SUB>2</SUB> population by crossing two nearly isogenic lines (NILs) harboring <I>gw8.1</I> and <I>gw9.1</I>. Simple sequence repeat (SSR) markers tightly linked to the QTLs were used to select F<SUB>3</SUB> QTL-NILs from the F<SUB>2</SUB> population. A two-way ANOVA revealed an epistatic interaction between the two QTLs in the F<SUB>2</SUB> population (<I>P</I> = 0.0084). This interaction was confirmed by an analysis of F<SUB>3</SUB> QTL-NILs indicating that both QTLs are involved in the same genetic mechanism controlling GW. The <I>gw8.1</I> QTL was further mapped between two SSR markers, RM23204 and RM23211, which are 110.1 kb apart. To our knowledge, this is the first report using QTL-NILs to reveal an epistatic interaction between QTLs for GW.</P>