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| 1 | 超声引导下神经内注射行经皮化学药物神经阻滞显示文摘对超声引导下神经内化学药物神经阻滞控制顽固性肢体痉挛及其可行性进行了评价。29例有肢体痉挛的病人接受了53次神经内注射化学药物(利多卡因或苯酚)以控制病情。主要阻滞的靶神经为坐骨神经、胫神经与肌皮神经。确定痉挛的肌肉与靶神经后,使用25G针在超声引导下行神经内注射。注射利多卡因组平均有效持续时间为(9.1±9.6)d,注射苯酚永久性阻滞组的平均有效持续时间为(164.5±169.4)d。结果表明,超声引导下神经内注射技术是可行、有效的。 | J.Lee Y.S.Lee 唐光健 | 2008 | 国际医学放射学杂志2008，31，5： | 4 |
| 2 | Emissions of Er3+ and Yb3+ co-doped SrZrO3 nanocrystals under near-infrared and near-ultraviolet excitations显示文摘In this study,the upconversion(UC)emissions of Er3+and Yb3+co-doped SrZrO3 nanocrystals(NCs)were investigated in terms of the thermal annealing temperature and concentration of Er3+ions and compared with the emissions under a near-ultraviolet(near-UV)excitation.The NCs were synthesized by the combustion method,and the as-synthesized NCs were post-annealed at high temperatures.The X-ray diffraction patterns revealed that the grain sizes and crystallinity degrees of the samples increased with increasing annealing temperatures.The photoluminescence spectra of our samples exhibited strong green and very weak red emissions with the near-UV excitation,originating from the f-f transitions in the Er3+ions.Interestingly,under near-infrared(near-IR)excitation,we identified sizable visible emissions at 525,547,and 660 nm in our NCs,which indicated that the UC process successfully occurred in our NCs.These UC emissions were maximized in the NCs with an Er3+concentration of 0.02 and thermal annealing at 1000°C.We found that the intensity ratios of red to green emissions increased with increasing annealing temperatures.We discussed the differences in the emissions between near-UV and near-IR excitations. | Hyeontae Lim Juyeong Lim Soyoung Jang Y.S.Lee | 2020 | Journal of Advanced Ceramics2020，9，4： | 2 |
| 3 | Structure of carbon fiber obtained from nanotube-reinforced mesophase pitch显示文摘 | T.Cho Y.S.Lee R.Rao | | 0，，07： | 1 |
| 4 | 查看详情显示文摘 | Y.S.Lee R.D.Wurster | | 0，，： | 1 |
| 5 | 查看详情显示文摘 | H.Steinberg D.R.Gardner Y.S.Lee P.JarilloHerrero | | 0，，12： | 1 |
| 6 | Changes in Broiler Breast Fillet Tenderness, Water‐Holding Capacity, and Color Attributes during Long‐Term Frozen Storage显示文摘 | Y.S.Lee A.Saha R.Xiong C.M.Owens J.F.Meullenet | 2008 | Journal of Food Science2008，，4： | 1 |
| 7 | Dynamic properties of shear thickening colloidal suspensions显示文摘 | Y.S.Lee N.J.Wagner | | 0，，03： | 1 |
| 8 | The ballistic impact characteristics of Kevlar woven fabrics impregnated with a colloidal shear thickening fluid显示文摘 | Y.S.Lee E.D.Wetzel N.J.Wagner | | 0，，13： | 1 |
| 9 | 查看详情显示文摘 | K.H.An W.S.Kim Y.S.Park J.M.Moon D.J.Bae S.C.Lim Y.S.Lee Y.H.Lee | | 0，，： | 1 |
| 10 | 查看详情显示文摘 | H.Steinberg D.R.Gardner Y.S.Lee P.JarilloHerrero | | 0，，： | 1 |
| 11 | The Search for the Quantum Spin Liquid in Kagome Antiferromagnets显示文摘A quantum spin liquid (QSL) is an exotic quantum ground state that does not break conventional symmetries and where the spins in the system remain dynamic down to zero temperature. Unlike a trivial paramagnetic state, it features long-range quantum entanglement and supports fractionalized excitations. | J.-J.Wen Y.S.Lee | 2019 | Chinese Physics Letters2019，36，5： | 0 |
| 12 | Effect of Eu^(3+),Bi^(3+),and Li^(+) doping on luminescent property of GdNbO_(4)显示文摘We investigated the emission properties of Eu^(3+)-doped GdNbO_(4)-based oxide phosphors,aiming at improving the Eu^(3+)emission by codoping of Bi^(3+)and Li^(+).Eu^(3+)singly doped,Eu^(3+)and Bi^(3+)doubly doped,and Eu^(3+),Bi^(3+),and Li^(+)triply doped GdNbO_(4)were prepared using a high-temperature solid-state reaction method.The red-orange emissions from Eu^(3+)in the singly doped samples are significantly improved by the codoping of Bi^(3+),mainly due to the energy transfer from Bi^(3+)to Eu^(3+).The additional codoping of Li^(+)is found to increase the Eu^(3+)emission significantly.This improvement might be attributed to the increase in the photoluminescent quantum yield originating from larger grain sizes and better crystallinity.A detailed analysis of the X-ray diffraction pattern and the asymmetric ratio estimated from the photoluminescence spectra show that the local lattice environment around Eu^(3+)in GdNbO_(4)does not change significantly with the codoping of Bi^(3+)and Li^(+).Our results indicate that Li^(+)doping is a promising way to improve the emission properties of rare-earth ion-doped GdNbO_(4)phosphors. | S.W.Wi Y.S.Lee | 2024 | Journal of Rare Earths2024，42，1： | 0 |
| 13 | 有源钳位准谐振变换器的一种简单驱动电路显示文摘提出了有源钳位准谐振变换器的一种新的驱动方式,它无需经过数字电路延时,只需一个电阻和二极管构成的小网络。新的驱动方法简单易用,简化了设计,降低了成本。实验结果表明新方案有效。 | 林波涛 丘水生 Y.S.Lee | 1999 | 电力电子技术1999，33，1： | 0 |
| 14 | 汽车差速器半轴齿轮的精密冷锻显示文摘精密锻造齿轮在原材料利用和提高生产率方面与机加工齿轮相比有比较明显的优点。精密镊造锥齿轮已应用在汽车齿轮差速器,并拥有很高的可靠性。另一方面,仍继续研究提高精度和扩大应用范围。本文介绍了差速器齿轮的整个精密模锻过程,从模具设计、冷锻到热处理。镀模的应力和弹性变形的确定借助于有限元分析软件。通过应变测量模具的实际弹性变形。本研究中模具的弹性变形达到1mm。模具尺寸的定量分析利用了经模的CAD/CAM数据。 | T.D.Noh S.H.Jung Y.S.Lee Y.N.Kwon J.H.Lee 袁亮 陈志强 张钰成 胡亚民 | 2004 | 锻造与冲压2004，，5： | 0 |
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