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61篇 您的检索式:作者名="S.KIM"
    题名 作者 年代 出处 被引量
1异位胰腺的CT表现及与胃肠道小间质瘤和平滑肌瘤的鉴别显示文摘摘要目的描述异位胰腺的CT表现,识别可以同其他具有相似特征的胃部黏膜下肿瘤,如最常见的胃肠道黏膜下肿瘤胃肠道间质瘤(GIST)和平滑肌瘤相鉴别的特征。材料与方法本回顾性研究经学术审查委员会批准不需要知情同意。回顾性复习病理证实的胃和十二指肠的异位胰腺(n=14)、GIST(n=33)和平滑肌瘤(n=7)的CT图像。J.Kim J.Lee K.Kim H.Park J.Choi S.Kim 高莉 2009国际医学放射学杂志2009,32,5:79
2分布式光纤温度传感器新测温原理的研究显示文摘介绍了分布式光纤温度传感器的工作原理和应用状况,分析了光纤中放大的自发拉曼散射现象及其时域特性.提出了一种基于光纤中放大的自发拉曼散射光脉冲信号温度效应的新温度测量原理,并将其应用于分布式光纤传感器系统,进而讨论了基于新测温原理的实验现象和实验数据.王剑锋 张在宣 徐海峰 刘红林 余向东 Insoo S.KIM 2006中国计量学院学报2006,17,1:34
330km远程分布光纤拉曼温度传感器系统的实验研究显示文摘研制成功一套 30km远程分布光纤拉曼温度传感器 (DOFRTS)系统 ,采用了新的光纤放大的反斯托克斯背向拉曼自发散射测温原理和 15 5 0nm掺铒光纤激光器作为抽运源及高速瞬态波形采样技术 ,累加平均等信号处理技术 ,提高了信噪比 ,解决了弱信号检测问题。使用智能化恒温技术 ,使主要元器件在恒温条件下工作 ,解决了工程应用中环境的适应性问题。经鉴定 ,远程分布光纤拉曼温度传感器系统的主要技术指标如下 :光纤长度为 31km ,测温范围为 0~ 10 0℃ (可扩展 ) ,温度测量不确定度为± 2℃ ,温度分辨率为 0 1℃ ,测量时间为 4 32s,空间分辨率为 4m。张在宣 王剑锋 刘红林 余向东 郭宁 Insoo S.KIM 2004中国激光2004,31,5:33
4掺铒光纤环形激光器输出特性的研究显示文摘根据掺铒光纤激光器的速率方程 ,对环形腔光纤激光器的输出特性进行了理论分析 ,得到了光纤激光器在稳态条件下阈值抽运功率、激光输出功率和斜率效率的解析表达式。利用数值模拟结果对光纤激光器的这些基本特性参量进行了分析和讨论 ,为光纤环形激光器的优化设计提供了依据。并进行了 980nm抽运的掺铒光纤激光器的实验 。夏江珍 蔡海文 任虹 李琳 赵岭 陈高庭 方祖捷 Insoo S.Kim 2003光学学报2003,23,7:10
5S波段分布式光纤拉曼放大器的实验研究显示文摘在S波段对3种不同配置的色散补偿型分布式光纤拉曼放大器(FRA)进行了研制。实验证明:5kmDCF 50kmG652光纤色散补偿型分布式FRA的增益和噪声特性优于50km、G652 5kmDCF光纤和25kmG652 5kmDCF 25kmG652光纤色散补偿型分布式FRA。测量了5kmDCF 50kmG652光纤色散补偿型分布式FRA的增益光谱和噪声谱。在DWDM光纤传输系统中,色散补偿分布式FRA对S波段1520nm光谱波段2个光谱间隔为0.262nm(频率间隔为34.1GHz)信号信道光谱的传输特性优于50kmG652正色散FRA和5kmDCF负色散FRA。张在宣 王剑锋 李晨霞 刘涛 王利 耿丹 金永兴 刘红林 Insoo S.KIM 吴孝彪 方达伟 金尚忠 庄松林 2004光电子.激光2004,15,5:9
630km远程分布光纤拉曼温度传感器系统显示文摘研制了30km远程分布光纤拉曼温度传感器(DOFRTS)系统。采用了新的光纤放大的反斯托克斯背向拉曼自发散射测温原理,用1550nm掺铒光纤激光器作为抽运源,采用高速瞬态波形采样技术和累加平均等信号处理技术,提高了信噪比,解决了弱信号检测问题;采用了智能化恒温技术,使主要元器件在恒温条件下工作,解决了工程应用中环境的适应性。远程DOFRTS已达到的主要技术指标为:光纤长度31km;测温范围0~100℃(可扩展);温度测量不确定度±2℃;温度分辨率0.1℃;测量时间432s;空间分辨率4m。张在宣 王剑锋 刘红林 余向东 郭宁 Insoo S.KIM 2004光电子.激光2004,15,10:8
730公里远程分布光纤拉曼温度传感器系统测试方法与技术的研究显示文摘本文讨论了分布光纤拉曼温度传感器的主要特性的测试方法与技术 ,并以 30公里分布光纤拉曼温度传感器为例 ,对测试结果进行了分析讨论。光纤长度为 30 9公里 ,测温范围 :0— 10 0℃ (可扩展 ) ;温度测量不确定度 :± 2℃ ;温度分辨力 0 1℃ :空间分辨力 :4m(采样率 10 0MHz)。盛健 张在宣 王剑锋 刘红林 Insoo S.KIM 2004计量技术2004,,2:3
8Prognostic significance of glycaemic control in patients with HBV and HCV‐related cirrhosis and diabetes mellitus显示文摘S. Y.Kwon S. S.Kim O. S.Kwon K. A.Kwon M. G.Chung D. K.Park Y. S.Kim Y. S.Koo Y. K.Kim D. J.Choi J. H.Kim 2005Diabetic Medicine2005,,11:2
9Enhanced photoluminescence quantum yield of MAPbBr3 nanocrystals by passivation using graphene显示文摘Diminishing surface defect states in perovskite nancx^rystals is a highly challenging subject for enhancing optoelectronic device performance.We synthesized organic/inorganic lead-halide perovskite MAPbBr3(MA=methylammonium)clusters comprising nanocrystals with diameters ranging between 20 and 30 nm and characterized an enhanced photoluminescence(PL)quantum yield(as much as^7 times)by encapsulating the MAPbBr3 with graphene(Gr).The optical properties of MAPbBr3 and Gr/MAPbBr3 were investigated by temperature-dependent micro-PL and time-resolved PL measurements.Density functional theory calculations show that the surface defect states in MAPbBr3 are removed and the optical band gap is reduced by a 0.15 eV by encapsulation with graphene due to partial restoration of lattice distortions.Youngsin Park Atanu Jana Chang Woo Myung Taeseung Yoon Geungsik Lee Claudius C.Kocher Guanhua Ying Vitaly Osokin Robert A.Taylor Kwang S.Kim 2020Nano Research2020,13,4:2
10Study on forward stimulated Brillouin scattering in a backward pumped fiber Raman amplifier显示文摘Strong multi-order forward stimulated Brillouin scattering (SBS) has been observed in the backward pumped S-band distributed fiber Raman amplifier (FRA) with tunable narrow signal source (less than 100MHz) when the pump power of FRA reached the SBS threshold. This does not obey the theory that only weak backward SBS lines exist according to the conservation of energy and momentum and the wave vector selected rule. This is because the sound waveguide characteristic weakens the wave vector rule, and the forward transmitted sound waveguide Brillouin scattering lines are generated and amplified in FRA. When the pump power is further increased, 11 orders of SBS lines and comb-like profile are observed. For the excited line, the frequency is 197.2296 THz and the power is 0 dBm. The even order SBS lines are stronger than odd order SBS lines, the power of the 2nd and 4th order SBS lines is 1.75dBm, which is 16dB higher than that of the 1st and 3rd order SBS lines. The odd order SBS lines are named Brillouin-Rayleigh scattering lines.张在宣 李来晓 耿丹 戴碧智 金永兴 刘红林 Insoo S.Kim 王剑锋 吴孝彪 方达伟 庄松林 2004Chinese Optics Letters2004,2,11:2
11Gene–gene interaction between interleukin‐4 and interleukin‐4 receptor α in Korean children with asthma显示文摘S.‐G.Lee B.‐S.Kim J.‐H.Kim S.‐Y.Lee S.‐O.Choi J.‐Y.Shim T.‐J.Hong S.‐J.Hong 2004Clinical & Experimental Allergy2004,,8:1
12Comparison of conventional transarterial chemoembolization (TACE) and chemoembolization with doxorubicin drug eluting beads (DEB) for unresectable hepatocelluar carcinoma (HCC)显示文摘RenumathyDhanasekaran David A.Kooby Charles A.Staley John S.Kauh VinitKhanna Hyun S.Kim 2010J Surg Oncol2010,,6:1
13查看详情显示文摘P.A.Coulombe S.Kim 0,,:1
14Brain Transplantation of Immortalized Human Neural Stem Cells Promotes Functional Recovery in Mouse Intracerebral Hemorrhage Stroke Model显示文摘Hong J.Lee Kwang S.Kim Eun J.Kim Hyun B.Choi Kwang H.Lee In H.Park YongKo Sang W.Jeong Seung U.Kim 2009STEM CELLS2009,,:1
15EXPERIMENTAL STUDY OF FPS SYSTEM IN BRIDGE SEISMIC ISOLATION显示文摘P.TSOPELAS M. C.CONSTANTINOU Y. S.KIM S.OKAMOTO 1998Earthquake Engng Struct Dyn1998,,1:1
16Inspection of maleic anhydride in starch powder using line-scan hyperspectral Raman chemical imaging technique显示文摘Excessive use of maleic anhydride(MAN)in starch production is potentially harmful for consumers’health.This study presents a macro-scale Raman chemical imaging method for detection and quantification of MAN particles mixed in starch powder.MAN was mixed into corn starch at eight concentration levels from 50 ppm to 6400 ppm(w/w).Each mixture was put in a sample holder with a 150 mm×100 mm area and a 2 mm depth to create a large surface and a thin layer of the powdery sample for inspection.A 30 W 785 nm line laser was projected on the sample surface,from which hyperspectral images were obtained by a line-scan Raman imaging system with a spatial resolution of 0.2 mm.Fluorescence signals generated by laser-sample interactions were eliminated by a mathematical baseline correction method.A unique Raman peak was selected at 1839 cm-1 for the MAN detection,at which single-band fluorescence-corrected images were extracted from the mixture of each concentration and used to generate chemical images for MAN detection and mapping.The MAN detection limit was estimated at 100 ppm based on the Raman imaging measurement results.Pixel concentrations of the MAN in the chemical images were found linearly correlated with mass concentrations of the MAN particles in the starch powder,suggesting the Raman chemical imaging method has the potential for quantitative detection of the MAN in the starch-MAN mixtures.Jianwei Qin Moon S.Kim Kuanglin Chao Lisa Bellato Walter F.Schmidt Byoung-Kwan Cho Min Huang 2018International Journal of Agricultural and Biological Engineering2018,11,6:1
17Strain-tunable photonic band gap crystals显示文摘S.Kim V.Gopalan 0,,20:1
18Amplification effect on stimulated Brillouin scattering in the S-band forward G652 fiber Raman amplifier显示文摘The amplification effects on forward and backward stimulated Brillouin scattering (SBS) lines in the forward pumped S-band distributed G652 fiber Raman amplifier (FRA) have been studied. There is a pump threshold power of Stokes backward stimulated Brillouin scattering (B-SBS) line in the forward pumped G652 FRA, it is about 1 mW. The Stokes B-SBS lines are amplified by FRA and fiber Brillouin Brillouin gain. In experimental work, the saturation gain of the first order Stokes backward SBS line is about 58 dB and the saturation gain of 25-km G652 forward FRA is about 25 dB, so the gain of FBA is about 33 dB. The forward stimulated Brillouin scattering (F-SBS) is generated and amplified in S-band G652 FRA. The stimulated threshold powers of the forward first order Stokes SBS (SB1-), second order Stokes SBS (SB2-), and third order SBS (SB3-) in the forward pumped FRA are 2.3, 1.6, and 1.6 mW,respectively. In experimental work, the saturation gains of SB1-, SB2-, and SB3- are about 38, 62, and 60 dB, respectively. The saturation Raman gain of 25-km G652 forward FRA is about 8.8 dB, so the Brillouin gains of SB1-, SB2-, and SB3- are about 29.2, 53.2, and 51.2 dB, respectively. The forward and backward cascaded SBS lines have been observed.张在宣 戴碧智 李来晓 徐海峰 刘红林 王剑锋 李晨霞 Insoo S.Kim 2005Chinese Optics Letters2005,3,11:1
19General directionof-arrival estimation:a signal subspace approach显示文摘A.Cadzow S.Kim C.Shiue 0,,:1
20Coating of Energetic Materials using Crystallization显示文摘K.‐J.Kim H.‐S.Kim 2005Chem Eng Technol2005,,8:1
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