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5篇 您的检索式:作者名="H.W.Chan"
    题名 作者 年代 出处 被引量
1Tunable negative coefficient microwave photonic filter based on a polarization modulator and a polarization beam interferometer显示文摘A new tunable microwave photonic notch filter with negative coefficients is presented. It is based on a polarization modulator and a polarization beam interferometer. Experimental results are presented that embody the new concept.金岩冰 Erwin H.W.Chan 冯新焕 王旭东 关柏鸥 2015Chinese Optics Letters2015,13,5:2
2Coagulopathy in a patient with nephrotic syndrome显示文摘ShariGhanny CatherineRoss Anthony K.C.Chan Howard H.W.Chan 2010Hematol2010,,9:1
3Novel voltage signal at proximity-induced superconducting transition temperature in gold nanowires显示文摘We observed a novel voltage peak in the proximity-induced superconducting gold(Au) nanowire while cooling the sample through the superconducting transition temperature. The voltage peak turned dip during warming. The voltage peak or dip was found to originate respectively from the emergence or vanishing of the proximity-induced superconductivity in the Au nanowire.The amplitude of the voltage signal depends on the temperature scanning rate, and it cannot be detected when the temperature is changed slower than 0.03 K/min. This transient feature suggests the non-equilibrium property of the effect. Ginzburg-Landau model clarified the voltage peak by considering the emergence of Cooper pairs of relatively lower free energy in superconducting W contact and the non-equilibrium diffusion of Cooper pairs and quasiparticles.Jian Wang JunXiong Tang ZiQiao Wang Yi Sun QingFeng Sun Moses H.W.Chan 2018Science China(Physics,Mechanics & Astronomy)2018,61,8:0
4Investigation on microwave photonic filter group delay performance显示文摘Investigation on the group delay performance of microwave photonic filters is presented. Analysis and simulation results show symmetrical distribution on the delayed optical signals in the impulse response is required to obtain a constant group delay performance. Experimental results for both symmetrical and asymmetrical tap distribution microwave photonic notch filters are presented showing the group delay response with < ?25 ps and around 1 ns ripples, respectively.陈碧娟 Erwin H.W.Chan 冯新焕 王旭东 关柏鸥 2017Chinese Optics Letters2017,15,8:0
5In Situ XRD and XAS Investigation of Cathode Materials in Li-ion Battery显示文摘1 Results Lithium ion batteries have been widely used in modern portable electronics,such as cellular phones and notebook computers,because of their low cost,long life,and high energy density.In the lithium ion batteries,the cathode provides lithium ion source and plays a critical role to determinate the performance of battery.Lithium transition metal oxides have been investigated as active cathode materials due to their high potential versus Li/Li+ and large proportion of the lithium ions can be insert...J.G.Duh P.Y.Liao H.W.Chan S.Y.Tsai 2007复旦学报(自然科学版)2007,46,5:0
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