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| 1 | ^18F-FDG PET/CT显像能否鉴别诊断特发性肺纤维化患者的孤立性肺结节?显示文摘目的特发性肺纤维化(IPF)患者的肺癌发生率高,患者肺功能差,易发生气胸,因此对CT发现的孤立性肺结节(SPN)不宜采用侵入性诊断方法,否则可能导致严重的不良后果。^18F-脱氧葡萄糖(FDG)PET/CT可用于非IPF患者SPN的良恶性鉴别,但在IPF患者中的诊断准确性尚无研究。因此该研究拟调查^18F-FDGPET/CT是否能鉴别诊断IPF患者的SPN。方法回顾性分析来自该院的55例IPF患者[男54例、女1例,年龄(67.8±7.6)岁],患者SPN大小为8~30(18.5±5.7)mm,所有患者在2004年4月至2016年3月间行胸部CT和^18F-FDGPET/CT显像。对SPN的^18F-FDG摄取行视觉分析和半定量分析,图像结果与最终病理诊断(n=52)或影像学随访(n=3)结果进行比较。结果最终诊断结果表明,41个(75%)SPNs为恶性(21个鳞状细胞癌、9个腺癌、5个小细胞癌、4个混合类型癌、1个大细胞神经内分泌癌和1个肉瘤样癌),14个(25%)为良性。视觉分析PET/CT图像诊断SPN为恶性病变的灵敏度、特异性、阳性预测值(PPV)和阴性预测值(NPV)分别为98%、86%、95%和92%。使用最大标准摄取值(SUVmax)为2.0行半定量分析诊断的灵敏度、特异性、PPV和NPV分别为95%、93%、98%和87%。结论^18F-FDGPET/CT可用于IPF患者SPN的良恶性鉴别,如其用于非IPF患者一样。 | 唐军(译) Suk Hyun Lee Changhwan Sung Hyo Sang Lee Hee-young Yoon Soo-Jong Kim Jungsu S.Oh Jin Woo Song Mi Young Kim Jin-Sook Ryu | 2018 | 中华核医学与分子影像杂志2018，38，12： | 8 |
| 2 | Towards engineering in memristors for emerging memory and neuromorphic computing: A review显示文摘Resistive random-access memory(RRAM),also known as memristors,having a very simple device structure with two terminals,fulfill almost all of the fundamental requirements of volatile memory,nonvolatile memory,and neuromorphic characteristics.Its memory and neuromorphic behaviors are currently being explored in relation to a range of materials,such as biological materials,perovskites,2D materials,and transition metal oxides.In this review,we discuss the different electrical behaviors exhibited by RRAM devices based on these materials by briefly explaining their corresponding switching mechanisms.We then discuss emergent memory technologies using memristors,together with its potential neuromorphic applications,by elucidating the different material engineering techniques used during device fabrication to improve the memory and neuromorphic performance of devices,in areas such as ION/IOFF ratio,endurance,spike time-dependent plasticity(STDP),and paired-pulse facilitation(PPF),among others.The emulation of essential biological synaptic functions realized in various switching materials,including inorganic metal oxides and new organic materials,as well as diverse device structures such as single-layer and multilayer hetero-structured devices,and crossbar arrays,is analyzed in detail.Finally,we discuss current challenges and future prospects for the development of inorganic and new materials-based memristors. | Andrey S.Sokolov Haider Abbas Yawar Abbas Changhwan Choi | 2021 | Journal of Semiconductors2021，42，1： | 2 |
| 3 | Stabilization of the Anatase Phase of Ti_(1-x)Sn_(x)O_(2) (x < 0.5) Nanofibers显示文摘We experimentally investigate the stabilization of the anatase phase of Ti_(1-x)Sn_(x)O_(2)(x<0.5)nanofibers when synthesized by an electrospinning method.The as-spun nanofibers became nano-grained,polycrystalline nanofibers after calcination and the diameters of the nanofibers depend on Sn content.Stabilization of the anatase phase in Ti-rich compositions and incorporation of Sn ions were confirmed by X-ray diffraction,Raman,X-ray absorption near-edge structure,and photoluminescence(PL)spectroscopies.Results from the PL study also demonstrated the tunable nature of the optical properties,with the emission maximum shifting towards higher wavelength with increasing Sn concentration. | Kandasami Asokan Jae Young Park Sunwoo Choi Changhwan Chang Sang Sub Kim | 2010 | Nano Research2010，3，4： | 2 |
| 4 | Vascular Endothelial Growth Factor A Inhibition in Gastric Cancer显示文摘 | Do Joong Park Nicholas J. Thomas Changhwan Yoon Sam S. Yoon | 2015 | Gastric Cancer2015，，： | 2 |
| 5 | Self-sensing magnetic levitation using a LC resonant circuit 显示文摘 | Changhwan Choi Kyihwan Park | 1999 | Sensors and Actuators1999，72，： | 1 |
| 6 | A queue length-based scheduling scheme in ATM networks显示文摘 | Hyun-Ho Yoon Hakyong Kim Changhwan Oh and Kiseon Kim | 1999 | IEEE TENCON1999，6，： | 1 |
| 7 | Self-sensing magnetic levitation using a LC resonant circuit 显示文摘 | Changhwan C Kyihwan P | 1999 | Sensors and Actuators1999，72，3： | 1 |
| 8 | A New Torque Control Method of a Switched Reluctance Motor Using a Torque-sharing Function 显示文摘 | Changhwan Choi Seungho Kim Yongdae Kim | 2002 | IEEE Transactions on Magnetics2002，38，5： | 1 |
| 9 | Performance modification of a melt-blown filter medium via an additional nano-web layer prepared by electrospinning显示文摘 | Kitai K Changhwan L Jooyong K | 2009 | Fibers and Polymers2009，10，1： | 1 |
| 10 | Analytical study of interfacial layer doping effect on contact resistivity in metal-interfacial layer-Ge structure显示文摘 | KIM J K KIM G K CHANGHWAN S | 2014 | Electron Device Lett IEEE2014，35，7： | 1 |
| 11 | Mg Alloy Foam Fabrication via Melt Foaming Method显示文摘第一次 AZ91 (MgAI9Znl ) 和 AM60 (MgA ! 6 ) 有同类的毛孔结构的 Mg 合金泡沫成功地被准备经由是融化起泡沫的方法使用 CaCO3 发泡剂。这被揭示起泡沫的刮的气体 melt 不是 CO2 但是公司,它来自在 Mg 之间的液体固体反应融化。反应温度是比 CaCO3 分解低的超过 100 ° C,它做 Mg 合金从 690 ° C 在温度范围更容易融化泡沫进蜂窝状结构到 750 ° C。 | Changhwan SEO Bo-Young HUR | 2008 | Journal of Materials Science & Technology2008，24，3： | 1 |
| 12 | Inhibition of vascular endothelial growth factor A and hypoxia inducible factor 1α maximize the effects of radiation in sarcoma mouse models through destruction of tumor vasculature显示文摘 | Hae-June Lee Changhwan Yoon Do Joong Park Yeo-Jung Kim Benjamin Schmidt Yoon-Jin Lee William D. Tap T.S. Karin Eisinger-Mathason Edwin Choy David G. Kirsch M. Celeste Simon Sam S. Yoon | 2014 | International Journal of Radiation Oncology, Biology, Physics2014，，： | 1 |
| 13 | Solid-phase Extraction of β-Sitosterol from Oldenlandia diffusa Using Molecular Imprinting Polymer显示文摘-sitosterol 印了聚合物从 Oldenlandia diffusa 为 -sitosterol 的选择抽取和分析作好准备(O。diffusa ) 与紫外察觉由 HPLC 列在后面。印的聚合物显示出高亲密关系和选择到 -sitosterol。用这是的分子地印的聚合物(MIP ) 子弹稳固阶段的抽取(SPE ) 材料,干扰能快速外面被洗, -sitosterol 有选择地被保留并且充实。HPLC 分析方法被用来评估这 MIP 材料的特征。以由 MeOH/H2O/H3PO4 组成的活动阶段的条件(99/1/0.1, V/V/V, pH=6.0 ) 并且 1.0 mL | Zhu, Tao Yoon, Changhwan Row, Kyungho | 2011 | Chinese Journal of Chemistry2011，29，6： | 1 |
| 14 | Aggressively Scaled UltraThin Undoped HfO2 Gate Dielectric (EOT < 0:7 nm) With TaN Gate Electrode Using Engineered Interface Layer 显示文摘 | Changhwan Choi Chang Yong Kang Se Jong Rhee | 2005 | IEEE Electron De vice Letters2005，26，7： | 1 |
| 15 | A New Torque Control Method of A Switched Reluctance Motor Using A Torque-Sharing Function显示文摘 | Choi Changhwan Kim Seungho Kim Yongdae | 2002 | IEEE Transactions on Magnetics2002，38，5： | 1 |
| 16 | Performance enhancement of mobile IP by reducing out-of-sequence packets using priority scheduling 显示文摘 | Lee D Hwang G Changhwan O | 2002 | IEICE Trans Communication2002，85，8： | 1 |
| 17 | A New Torque Control Method of a Switched Reluctance Motor Using a Torque-sharing Function显示文摘 | Changhwan Choi Seungho Kim Yongdae Kim etal | 2002 | IEEE Transactions on Magnetics2002，38，5： | 1 |
| 18 | A New Torque Control Method of a Switched Reluctance Motor Using a Torque-Sharing Function显示文摘 | Seungho Kim Yongdae Kim Kyihwan Park | 2002 | IEEE Transactions on Magnetics(S0018-9464)2002，38，5： | 1 |
| 19 | Self-sensing magnetic levitation using a LC resonant circuit显示文摘 | Changhwan Choi Kyihwan Park | 1999 | Sensors and Actuators1999，72，： | 1 |
| 20 | Combining PARP-1 Inhibition and Radiation in Ewing Sarcoma Results in Lethal DNA Damage显示文摘 | Hae-June Lee Changhwan Yoon Benjamin Schmidt Do Joong Park Alexia Y. Zhang Hayriye V. Erkizan Jeffrey A. Toretsky David G. Kirsch Sam S. Yoon | 2013 | Molecular Cancer Therapeutics2013，，11： | 1 |
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