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Kim, S.-Y.,Kim, K.,Hwang, Y. H.,Park, J.,Jang, J.,Nam, Y.,Kang, Y.,Kim, M.,Park, H. J.,Lee, Z.,Choi, J.,Kim, Y.,Jeong, S.,Bae, B.-S.,Park, J.-U. The Royal Society of Chemistry 2016 Nanoscale Vol.8 No.39
<P>As demands for high pixel densities and wearable forms of displays increase, high-resolution printing technologies to achieve high performance transistors beyond current amorphous silicon levels and to allow low-temperature solution processability for plastic substrates have been explored as key processes in emerging flexible electronics. This study describes electrohydrodynamic inkjet (e-jet) technology for direct printing of oxide semiconductor thin film transistors (TFTs) with high resolution (minimum line width: 2 mu m) and superb performance, including high mobility (similar to 230 cm(2) V-1 s(-1)). Logic operations of the amplifier circuits composed of these e-jet-printed metal oxide semiconductor (MOS) TFTs demonstrate their high performance. Printed In2O TFTs with e-jet printing-assisted high-resolution S/D electrodes were prepared, and the direct printing of passivation layers on these channels enhanced their gate-bias stabilities significantly. Moreover, low process temperatures (<250 degrees C) enable the use of thin plastic substrates; highly flexible and stretchable TFT arrays have been demonstrated, suggesting promise for next-generation printed electronics.</P>
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Kim, N.,Cheong, C.s.,Yi, K.,Song, Y.S.,Park, K.H.,Geng, J.z.,Li, H.k. Elsevier Scientific Pub. Co., etc.] 2014 Precambrian research Vol.242 No.-
In situ U-Pb dating and Hf isotopic analyses were conducted on zircons extracted from Paleoproterozoic metasedimentary rocks and peraluminous (meta)granitoids in the north-eastern Yeongnam Massif, Korea. Combined with previous results, analyses from detrital zircons from the metasedimentary rocks yield a predominant age population of ca. 2.5Ga with subordinate clusters at ca. 2.7, 2.3, and 2.1Ga, and minor points older than 2.8Ga. The detrital zircons frequently have textureless rims that were overgrown at ca. 2.03-1.85Ga, indicating post-depositional thermal overprints associated with the intrusion of neighbouring granitoids and metamorphism. The (meta)granitoids are divided into three lithologic groups of banded or augen biotite gneisses (group I: Pyeonghae and Buncheon gneiss), massive cordierite or two mica granitic gneisses (group II: Icheonri and Hongjesa granitic gneiss), and a garnet-bearing leucogranite (group III: Imwon leucogranite). The best estimates of the timing of the emplacement of the first two groups are indistinguishable within their error ranges; 1980+/-22Ma (Pyeonghae gneiss), 1966+/-15Ma (Buncheon gneiss), 1985+/-14Ma (Icheonri granitic gneiss), and 1975+/-16Ma (Hongjesa granitic gneiss). The upper intercept discordia ages of ca. 1.86Ga indicated by the metamorphic overgrowth rims of zircons from the Buncheon gneiss and the Icheonri granitic gneiss agree with the emplacement age of the Imwon leucogranite (1867+/-6Ma). A close genetic link between the (meta)granitoids and metasedimentary rocks is demonstrated by the comparable age pattern of inherited zircon cores in the former with that of detrital zircons in the latter. The lower intercept ages of zircons indicate repeated Pb loss events in the Neoproterozoic to Paleozoic, although their exact tectonic meaning is still unclear. Most zircons have negative @?<SUB>Hf</SUB> values corresponding to two-stage Hf model ages (T<SUB>2DM</SUB>) from 3.4 to 2.7Ga, demonstrating Neoarchaean to Paleoproterozoic reworking of the Paleo- to Neoarchaean crust. Zircons from group I metagranitoids display a narrow T<SUB>2DM</SUB> range (2.74+/-0.09Ga). The Neoarchaean Hf model ages are also reduced by high-@?<SUB>Hf</SUB> zircons from the metasedimentary rocks and group II metagranitoids (T<SUB>2DM</SUB>=ca. 2.75Ga), and most zircons from the Imwon leucogranite (T<SUB>2DM</SUB>=2.62+/-0.06Ga). The protoliths of group I metagranitoids are considered to be I-type granites that was derived by infracrustal melting at depth. In contrast, the scattered Hf model ages of zircons from group II metagranitoids are suggestive of crystallisation from heterogeneous S-type magmas derived from the partial melting of supracrustal rocks. It is concluded that the Neoarchaean Era (ca. 2.75-2.62Ga) marks the most important stage of crustal formation in the north-eastern Yeongnam Massif. The Paleoproterozoic (ca. 2.50-1.98Ga) magmas from which the zircons crystallised were principally a product of crustal reworking. These Hf isotopic features generally match those reported for zircons from the North China Craton and the eastern part of the Cathaysia Block in the South China Craton, but the zircon ages determined here do not allow an indisputable correlation of the north-eastern Yeongnam Massif with Paleoproterozoic terranes in eastern China.
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김중남,오재선,김평남,김용태,김종두,이승일 朝鮮大學校 附設 醫學硏究所 1989 The Medical Journal of Chosun University Vol.14 No.2
Essential thrombocythemia, also known as a hemorrhagic thrombocythemia or essential throbocytosis is a primary myeloproliferative disorder in which the predominant laboratory features is a persistent, striking elevation of the platelet count. It is frequently associated with thrombosis and hemorrhage. We experienced one case of E.T who was a 33 yeyar old female admitted via OPD with fever, chill and burning pain in the feet, with confirmed by biopsy of bone marrow, repeated LAP score and chromosomal analysis.
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Integration of Genetic, Physical, and Cytogenetic Maps for <i>Brassica rapa</i> Chromosome A7
Xiong, Z.,Kim, J.S.,Pires, J.C. S. Karger AG 2010 CYTOGENETIC AND GEN0ME RESEARCH Vol.129 No.1
<P>Bacterial artificial chromosome (BAC) contigs have been genetically mapped to the 10 linkage groups of <I>Brassica rapa</I> by BAC end sequences (BES). To integrate the genetic, physical, and cytogenetic maps, fluorescence in situ hybridization (FISH) was used to anchor the assembly of BAC contigs onto <I>Brassica</I> chromosomes using representative BACs. This BAC-FISH approach can be used to identify chromosome arms on separate mitotic metaphase chromosomes or to map multiple BACs to single long pachytene chromosomes. As part of an international consortium that is sequencing the <I>B. rapa </I>genome, we integrated the linkage and physical maps with the <I>B. rapa</I> cytogenetic map for chromosome A7 by hybridizing BACs to mitotic chromosomes and along the length of pachytene chromosome spreads. A total of 31 BACs that were putatively located on A7 were used as probes for FISH analyses; however, only 19 BACs mapped unambiguously to A7 while the remaining BACs either mapped to other chromosomes or hybridized to multiple locations. We then created a multicolor FISH cocktail of 16 BAC probes to simultaneously hybridize the entire length of the A7 chromosome. We successfully applied the 16 A7 BAC probe mix to <I>B. rapa</I>, <I>B. oleracea, </I>and domesticated and resynthesized genotypes of <I>B. napus</I> to demonstrate that this approach can facilitate studies of genome evolution by integrating the genetic, physical, and cytogenetic maps among closely related species of <I>Brassica</I>.</P><P>Copyright © 2010 S. Karger AG, Basel</P>
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김선주,김유영,김은주,박솔민,배지윤,이민영,이유진,정재원,Li Keying,Wuyingjinzhu,신수진,도지영 이화여자대학교 간호과학대학 2019 이화간호학회지 Vol.- No.53
Purpose: The purpose of this study was to understand the experiences of Gyeongju and Pohang earthquakes during the examinees’ life. Methods: This study applied Colaizzis’s Phenomenological method. The Data was collected through in-depth interviews with a total 8 students of university in Seoul. Results: On the analysis of the interviews, their experience can be expressed as ‘Feeling embarrassed and frightened by earthquakes’, ‘Reduced susceptibility to earthquake hazards due to heavy exam pressure’, ‘Increased exam stress due to earthquake’, ‘Feeling the inadequacy of examinees' earthquake related safety measures in retrospect’. Conclusion: This study was meaningful in deeply understanding of their experiences and revealing that the examinees were more focused on studying rather than actively coping with the disaster. Furthermore, it reconsider the social climate surrounding college admission exams. This study meaningfully discovered that examinees could not stably prepare for both the exam and the earthquake evacuation procedures due to the timing of the earthquake in relation to their upcoming college admission test. Therefore, this study highlighted the examinees’ difficulties due to the earthquakes and increased the necessity of acute phase nursing intervention in relation to the seismic safety education system.
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金弘烈,金容權,安鍾雄,朴淳直,許文會 서울大學校 農科大學 1985 서울대농학연구지 Vol.10 No.2
短稈 Japonica 品種들의 Semi-dwarf (d-t) gene에 對한 allelism을 檢討하기 위하여 Semi dwarf gene을 가진 wx 817과 그에 대하여 allelic tall 因子를 가진 Binato를 檢定親으로 하여 Binato에 6個의 短稈 Japonica 品種을 交配하여 그 F₁, F₂ 및 F₃를 展開하여 稈長을 調査하였다. 그 結果를 要約하면 다음과 같다. 1. 檢定親稈 組合인 Binato×wx 817의 F₂에서는 長稈:短稈이 3:1로 分離되어 기왕의 報告와 一致하였다. 2. 供試된 短稈 Japonica 品種들은 檢定親인 Binato와의 組合 F₂에서 年次間 變異에 關係없이 모든 組合에서 長稈:短稈이 3:1로 分離되었다. 3. 短稈群에서 選拔된 F₃系統은 選拔 當時의 稈長을 中心으로 正規分布를 나타냈으나, 長稈群에서 選拔된 系統은 分離하는 것과 그렇지 않은 것이 2:1로 分離되어 理論値에 適合하였다. 4. 組合에 따라서는 F₃系統의 稈長 變異의 幅이 F₂集團에 비하여 다소 短稈된 組合과 伸張된 組合이 있었으나 稈長의 分離 樣相은 모든 組合에서 同一하였다. 5. 以上의 結果로 보아 供試된 短稈 Japonica 品種들의 稈長을 支配하는 主??遺傳子는 同一하지만 組合에 따라 서로 다른 微??遺傳子가 存在하는 것으로 推定된다. 6.F₂長桿群에서 選拔한 2群, 長一長群과 長一短群은 F₃에서 분명히 差가 나는 mode를 나타내어 選拔의 를 할 수 있었다. F₂短桿群에서 選拔한 F₃個體들의 變異를 보아 短稈群에서의 選拔도 有意할 것으로 추축되었다. Investigations were made to search for the semi-dwarf Japonicas allelic to the semi-dwarf rice cultivars which is controlled by d-t gene. Six dwarf Japonicas, Reimei,Hoyoku,Shiranui,Kokumasari, M.7 and S.224 were crossed to the tall tester cultivar, Binato. Binato is known having tall allelic gene to semi-dwarf gene d-t. Their F₁, F₂, and F₃ were grown in 1984 and 1985 and culm length were measured at harvest. The results are summarized as follows: 1. In the F₂ of test cross, Binato/wx817, culm ength was segregated 3 tall to 1 short, which conformed the tester's validity. 2. The F₂s of all 6 crosses showed 3 tall to 1 short segregation which indicated the short Japonicas were allelic to the tall tester variety. 3. F₃lines selected from short group of F₂showed no segregation but F₃ lines selected from tall group of F₂ were segregated in to 2 segregating and 1 not-segregating. 4. The range of variation of the short segregants and the tall segregants were variable depending on the cross combination, but the general patterns were similar in all 6 crosses. 5. From the results of F₂and F₃ segregations, it was concluded that the 6 semi-dwarf Japonicas tested here were controlled by same major gene d-t though they were modified by different minor genes. 6. The modes of segregation in F₃s selected from taller tall and selected from shorter tall were significantly different in every crosses which implies the selection effects. The selection effects in the short group also was presumed from their wide variations in F₃.
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Cr 및 Zr 첨가가 Cu-6Ni-4Sn 합금의 인장 및 부식 특성에 미치는 영향
한승전,김상식,김기원,김창주 대한금속재료학회 2002 대한금속·재료학회지 Vol.41 No.2
The effects of Cr and/or Zr additions on tensile and corrosion behaviors of Cu-6i-4Sn alloy were examined. It was observed that the changes in microstructure and tensile properties of Cu-6Ni-4Sn alloy were not significant with the addition of 0.1 to 0.3% Cr and/or Zr in the present study. The resistance to pitting corrosion was, however, improved in 3.5% NaCl solution with particularly the addition of Cr and Zr. The passive films observed in Cu-6Ni-4Sn alloys with Cr and/or Zr addition appeared to be more stable than non-Cr and/or Zr containing counterpart. The mechanism(s) of the improved resistance to pitting corrosion for Cu-6Ni-4Sn alloy with the addition of Cr and/or Zr is discussed based on the experimental observations.
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