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Babinet-Inverted Optical Yagi–Uda Antenna for Unidirectional Radiation to Free Space
Kim, Jineun,Roh, Young-Geun,Cheon, Sangmo,Choe, Jong-Ho,Lee, Jongcheon,Lee, Jaesoong,Jeong, Heejeong,Kim, Un Jeong,Park, Yeonsang,Song, In Yong,Park, Q-Han,Hwang, Sung Woo,Kim, Kinam,Lee, Chang-Won American Chemical Society 2014 NANO LETTERS Vol.14 No.6
<P>Nanophotonics capable of directing radiation or enhancing quantum-emitter transition rates rely on plasmonic nanoantennas. We present here a novel Babinet-inverted magnetic-dipole-fed multislot optical Yagi–Uda antenna that exhibits highly unidirectional radiation to free space, achieved by engineering the relative phase of the interacting surface plasmon polaritons between the slot elements. The unique features of this nanoantenna can be harnessed for realizing energy transfer from one waveguide to another by working as a future “optical via”.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/nalefd/2014/nalefd.2014.14.issue-6/nl500062f/production/images/medium/nl-2014-00062f_0006.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/nl500062f'>ACS Electronic Supporting Info</A></P>
Characteristics of Heat Waves From a Disaster Perspective
Kim, Do-Woo,Kwon, Chaeyoung,Kim, Jineun,Lee, Jong-Seol The Korean Society for Preventive Medicine 2020 Journal of Preventive Medicine and Public Health Vol.53 No.1
In September 2018, heat waves were declared to be a type of natural disaster by the Framework Act on the Management of Disasters and Safety. The present study examined the characteristics of heat waves from the perspectives of meteorological phenomena and health damage. The government's efforts to minimize the damages incurred by heat waves are summarized chronologically. Furthermore, various issues pertaining to heat waves that are being raised in our society despite the government's efforts are summarized by analyzing big data derived from reported news and academic articles.
Electrochemical Corrosion Behavior of Iron in Lithium-ion Battery Electrolyte
Kim, Jineun,Lee, Suhyun,Kim, Kun Woo,Son, Jungman,Mun, Junyoung The Korean Electrochemical Society 2021 Journal of electrochemical science and technology Vol.12 No.4
The element iron (Fe) is affordable and abundantly available, and thus, it finds use in a wide range of applications. As regards its application in rechargeable lithium-ion batteries (LIBs), the electrochemical reactions of Fe must be clearly understood during battery charging and discharging with the LIB electrolyte. In this study, we conducted systematic electrochemical analyses under various voltage conditions to determine the voltage at which Fe corrosion begins in general lithium salts and organic solvents used in LIBs. During cyclic voltammetry (CV) experiments, we observed a large corrosion current above 4.0 V (vs. Li/Li<sup>+</sup>). When a constant voltage of 3.7 V (vs. Li/Li<sup>+</sup>), was applied, the current did not increase significantly at the beginning, similar to the CV scenario; on the other hand, at a voltage of 3.8 V (vs. Li/Li<sup>+</sup>), the current increased rapidly. The impact of this difference was visually confirmed via scanning electron microscopy and optical microscopy. Our X-ray photoelectron spectroscopy measurements showed that at 3.7 V, a thick organic solid electrolyte interphase (SEI) was formed atop a thin fluoride SEI, which means that at ≥3.8 V, the SEI cannot prevent Fe corrosion. This result confirms that Fe corrosion begins at 3.7 V, beyond which Fe is easily corrodible.
Anovel functional polymorphism in CIR1gene is associated with the risk of lung cancer
( Hyera Kim ),( Jineun Choi ),( Sun Ha Choi ),( Minjung Kim ),( Hyewon Seo ),( Yong Dae Lee ),( So Yeon Lee ),( Seung Soo Yoo ),( Shin Yup Lee ),( Jaehee Lee ),( Seung Ick Cha ),( Chang Ho Kim ),( Jae 대한결핵 및 호흡기학회 2015 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.120 No.-
Purpose: We evaluated the associations between potentially functional variants in cancer-related genes and the risk of lung cancer to identify genetic factors responsible for lung cancer susceptibility in a Korean population. Material and Methods: A total of 1,969 potentially functional single nucleotide polymorphisms (SNPs) of 1,151 genes involved in carcinogenesis were evaluated using the Affymetrix custom-made GeneChipin 610 NSCLC patients and 610 healthy controls. A replication study was performed on an independent set of 490 cases and 486 controls. Results: Eighty two SNPs with P< 0.05 for genotype distribution in the discovery set were tested in the replication study. Among the 82 SNPs, three SNPs (corepressor interacting with RBPJ 1 [CIR1] SNP1T>C,solute carrier family 38, member 4[SLC38A4] SNP2C>T, ribonucleotide reductase M1 [RRM1] SNP3T>C) constantly showed significant associations with lung cancer(adjusted odds ratio[aOR] = 0.68, 95% CI = 0.59-0.84, P < 0.0001; aOR = 0.74, 95% CI = 0.63-0.88, P = 0.001;aOR = 0.72, 95% CI = 0.56-0.93, P = 0.01, respectively, under dominant model). Promoter assay demonstrated a decreased reporter gene expression for CIR1SNP1 C allele was observed compared with T allele (P = 0.02). Conclusions: Our results suggest that the three SNPs, particularly CIR1SNP1T>C, may contribute to lung cancer susceptibility in Koreans.
김진은 ( Jineun Kim ),문준영 ( Junyoung Mun ) 한국공업화학회 2020 공업화학전망 Vol.23 No.1
최근 전기차, 신재생에너지 등장 등으로 중대형 이차전지 시장이 확대되면서, 리튬 이온 배터리 안전성 이슈 관련 고안전성 전해액 소재에 대한 관심이 높아졌다. 다양한 고안전성 전해액 시스템 중, 상온 이온성 액체는 비발화성, 낮은 증기압 특성으로 많은 관심을 받고 있다. 뛰어난 물리적 특성에도 불구하고 리튬 이온 배터리의 전해액으로 사용되기 위해서는 전도도 및 전기화학 안전성, 전극 계면 거동이 전기화학 성능을 얻는데 만족되어야 한다. 많은 종류의 상온 이온성 액체들이 분자 구조 설계 및 양극/음극 전해액 사용, 전지 내 부품 안전성 확보 등의 다양한 접근 방법들로 연구가 진행되어 왔다. 향후 지속적인 전지 안전성의 이슈에 대한 중요성 증대로 상온 이온성 액체에 대한 연구 역시 더 활발해질 것으로 기대되며, 본 기고문에서는 다양한 상온 이온성 액체들이 전지 시스템에 적용된 연구동향에 대해서 정리하고 소개하고자 한다.
Characteristics of Heat Waves From a Disaster Perspective
Do-Woo Kim,Chaeyoung Kwon,Jineun Kim,Jong-Seol Lee 대한예방의학회 2020 Journal of Preventive Medicine and Public Health Vol.53 No.1
In September 2018, heat waves were declared to be a type of natural disaster by the Framework Act on the Management of Disasters and Safety. The present study examined the characteristics of heat waves from the perspectives of meteorological phenomena and health damage. The government’s efforts to minimize the damages incurred by heat waves are summarized chronologically. Furthermore, various issues pertaining to heat waves that are being raised in our society despite the government’s efforts are summarized by analyzing big data derived from reported news and academic articles.
김성민,정성욱,김진은,김재상,Sung Min Kim,Sung Uk Jung,Jineun Kim,Jae Sang Kim 대한화학회 1993 대한화학회지 Vol.37 No.8
Tl$^+$이온 센서로서 크라운 에테르 B15C5와 DB18C6를 중성운반체로 한 PVC 액체막 이온 선택성 전극을 제작하였다. 막용매로는 DOA, NPPE 및 NPOE를 사용하였으며 친유성 염, KTClPB의 농도를 변화시킨 여러가지 조성의 막을 시험하였다. B15C5와 DB18C6 막 전극의 감응전위는 농도범위, 10$^{-1}$∼10$^{-5}$M에서 직선으로 나타났으며 최대 기울기는 전극에 따라서 40∼55 mV/decade였다. 선택계수는 분리용액법으로 결정하였으며 알카리금속 이온, 알칼리토금속 이온 및 일부 전이금속 이온에 대하여 좋은 선택성을 나타냈다. 제작된 액체막 전극은 Ph > 3 에서 안정한 감응전위를 보였다. Poly(vinyl chloride)(PVC) membrane electrodes based on the lipophilic neutral carrier, dibenzo-18-crown-6(DB18C6) and benzo-15-crown-5 (B15C5) as the active sensors for Tl$^+$ ion have been prepared and tested in different content of the potassium tetrakis(4-chlorophenyl)borate (KTClPB) as lipophilic salt. Dioctyl adipate (DOA), 2-nitrophenyl phenyl ether (NPPE) and o-nitrophenyl actyl ether (NPOE) were used as plasticizing solvent mediators. Electrodes exhibited good linear responses of 40∼55 mV decade$^{-1}$ for Tl$^+$ ion within the concentration ranges 10$^{-1}$∼10$^{-5}$M TlNO$_3$. Selectivity coefficients of interfering ions (alkali metal, alkaline earth metal and some transition metal ions) for Tl$^+$-ISE were determined by separate solution method and were sufficiently small for most of them. These crown ether type ion-selective electrodes are suitable for use with aqueous solution at pH > 3.