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| 1 | Thermal reffusivity: uncovering phonon behavior, structural defects, and domain size显示文摘理解在不同 nanostructures 和热性质之间的关系,一个简单还有效的模型为描绘内在的声子和电子散布机制是受欢迎的。此处,我们在最新发达的热 reffusivity 理论上做系统的评论。象历史上作为一个理论被使用了分析金属的结构的领域尺寸和缺点层次的电的抵抗力一样,热 reffusivity 能也揭开声子行为,结构缺点和材料的领域尺寸。我们加亮那这个新理论能被用于不仅金属,而且非金属,甚至为非结晶的材料。从对温度曲线的热 reffusivity,材料和单个完美的水晶的理想的热扩散性的 Debye 温度能被评估。从剩余在 0 K 限制的热 reffusivity,水晶、非结晶的材料的结构的热领域(性传播疾病) 尺寸能被获得。从热传导观点的白头发和正常黑头发的差别第一次被报导。在更坏的热保护的黑素结果和在白头发的一种更大的性传播疾病尺寸的损失。由对减少的温度侧面考察热 reffusivity 的不同变化,我们断定他们在材料反映了结构的连接。最终,在学习 2D 材料和非结晶的材料的热 reffusivity 理论的未来申请被讨论。 | Yangsu XIE Bowen ZHU Jing LIU Zaoli XU Xinwei WANG | 2018 | Frontiers in Energy2018，12，1： | 3 |
| 2 | Street as Courtroom: State Accommodation of Labor Protest in South China显示文摘 | YangSu XinHe | 2010 | Law & Society Review2010，，1： | 3 |
| 3 | Hydroxide coprecipitation route to the piezoelectric oxide Pb(Zr,Ti)O3(PZT) 显示文摘 | CHOY Jinho HAN Yangsu KIM Seungjoo | 1995 | J Mater Chem1995，5，1： | 1 |
| 4 | Hierarchical TiO<sub>2</sub> Nanospheres with Dominant {001} Facets: Facile Synthesis, Growth Mechanism, and Photocatalytic Activity显示文摘 | Hongmei Li Yangsu Zeng Tongcheng Huang Lingyu Piao Zijie Yan Min Liu | 2012 | Chem Eur J2012，，24： | 1 |
| 5 | Oxalate coprecipitation route to the piezoelectric Pb(Zr,Ti)O3 显示文摘 | CHOY Jinho HAN Yangsu KIM Seungjoo | 1997 | J Mater Chem1997，7，9： | 1 |
| 6 | Cirate route to the piezoelectric Pb(Zr,Ti)O3 显示文摘 | CHOY Jinho HAN Yangsu | 1997 | J Mater Chem1997，7，9： | 1 |
| 7 | Preparation and characterization of microporous SiO2-ZrO2 pillared montmorillonite显示文摘 | Han Yangsu Shoji Yamanak | 2006 | J Solid State Chem2006，179，： | 1 |
| 8 | Design and implementation of shaped magnetic-resonance-based wireless power transfer system for roadway-powered moving electric vehicles显示文摘 | Jaegue Shin Seungyong Shin Yangsu Kim | 2014 | IEEE Transactions on Industrial Electronics2014，61，3： | 1 |
| 9 | Hema- tite template route to hollow-type silica spheres显示文摘 | HAN Yangsu JEONG G Y LEE S Y | 2007 | Journal of Solid State Chemistry2007，180，10： | 1 |
| 10 | Principle and application of multiple fractional Fourier transform holography 显示文摘 | Yangsu Zeng Yongkang Guo Fuhua Gao | 2003 | Optics Communications2003，215，： | 1 |
| 11 | Street as Courtroom: State Accommodation of Labor Protest in South China显示文摘 | YangSu XinHe | 2010 | Law & Society Review2010，，1： | 1 |
| 12 | Implementation of image encoding and decoding by fractional Fourier transform CGH显示文摘 | Yangsu Zeng Shiwei Xie | 2002 | Proceedings of SPIE2002，4924，： | 1 |
| 13 | Flexible Large-Area Graphene Films of 50-600 nm Thickness with High Carrier Mobility显示文摘Bulk graphene nanofilms feature fast electronic and phonon transport in combination with strong light-matter interaction and thus have great potential for versatile applications,spanning from photonic,electronic,and optoelectronic devices to charge-stripping and electromagnetic shielding,etc.However,large-area flexible close-stacked graphene nanofilms with a wide thickness range have yet to be reported.Here,we report a polyacrylonitrile-assisted’substrate replacement’strategy to fabricate large-area free-standing graphene oxide/polyacrylonitrile nanofilms(lateral size~20 cm).Linear polyacrylonitrile chains-derived nanochannels promote the escape of gases and enable macro-assembled graphene nanofilms(nMAGs)of 50-600 nm thickness following heat treatment at 3,000℃.The uniform nMAGs exhibit 802-1,540 cm^(2)V-1s-1carrier mobility,4.3-4.7 ps carrier lifetime,and>1,581 W m^(-1)K^(-1)thermal conductivity(n MAG-assembled 10μm-thick films,mMAGs).nMAGs are highly flexible and show no structure damage even after 1.0×10^(5)cycles of folding-unfolding.Furthermore,n MAGs broaden the detection region of graphene/silicon heterojunction from near-infrared to mid-infrared and demonstrate higher absolute electromagnetic interference(EMI)shielding effectiveness than state-of-the-art EMI materials of the same thickness.These results are expected to lead to the broad applications of such bulk nanofilms,especially as micro/nanoelectronic and optoelectronic platforms. | Shiyu Luo Li Peng Yangsu Xie Xiaoxue Cao Xiao Wang Xiaoting Liu Tingting Chen Zhanpo Han Peidong Fan Haiyan Sun Ying Shen Fan Guo Yuxing Xia Kaiwen Li Xin Ming Chao Gao | 2023 | Nano-Micro Letters2023，15，5： | 1 |
| 14 | Graded methionine dietary inclusions influence growth performance and apparent ileal amino acid digestibility coefficients and disappearance rates in broiler chickens显示文摘Graded quantities of 1.38,2.76 and 4.14 g/kg L-methionine were included in a control diet formulated to contain 3.07 g/kg digestible methionine.Each of the 4 dietary treatments was offered to 6 replicate cages(initially 8 birds per cage)from 1 to 21 d postehatch.The parameters assessed included growth performance,nutrient utilisation(apparent metabolisable energy[AME],AME:GE ratios,N retention,Ncorrected apparent metabolisable energy[AMEn]),apparent digestibility coefficients and disappearance rates of amino acids in the distal ileum.They also included free amino concentrations in systemic plasma(brachial vein)at 20 d postehatch and in hepatic tissue at 14 and 21 d postehatch.Graded L-methionine inclusions quadratically influenced weight gain(r=0.688;P=0.001)and FCR(r=0.780;P<0.001).It may be deduced from the quadratic regressions that 3.43 g/kg L-methionine supported maximum weight gain of 1,036 g/kg and 3.50 g/kg L-methionine minimum FCR of 1.193,from 1 to 21 d postehatch.The control diet contained specified levels of 3.07 g/kg digestible methionine and 13.0 g/kg digestible lysine.Thus,an inclusion of 3.465 g/kg L-methionine corresponded to a total of 6.535 g/kg methionine or a methionine-to-lysine ratio of 50.3,which is higher than standard recommendations.The implications of this and other outcomes of the present study are reported and discussed. | Shemil P.Macelline Peter V.Chrystal Leon R.McQuade Bernard V.Mclnerney Yangsu Kim Yumin Bao Peter H.Selle Sonia Y.Liu | 2022 | Animal Nutrition2022，，1： | 0 |
| 15 | Robust and high-sensitivity thermal probing at the nanoscale based on resonance Raman ratio (R3)显示文摘Raman spectroscopy-based temperature sensing usually tracks the change of Raman wavenumber,linewidth and intensity,and has found very broad applications in characterizing the energy and charge transport in nanomaterials over the last decade.The temperature coefficients of these Raman properties are highly material-dependent,and are subjected to local optical scattering influence.As a result,Raman-based temperature sensing usually suffers quite large uncertainties and has low sensitivity.Here,a novel method based on dual resonance Raman phenomenon is developed to precisely measure the absolute temperature rise of nanomaterial(nm WS_(2) film in this work)from 170 to 470 K.A 532 nm laser(2.33 eV photon energy)is used to conduct the Raman experiment.Its photon energy is very close to the excitonic transition energy of WS_(2) at temperatures close to room temperature.A parameter,termed resonance Raman ratio(R3)Ω=I_(A1g)/IE_(2g) is introduced to combine the temperature effects on resonance Raman scattering for the A_(1g) and E_(2g) modes.Ω has a change of more than two orders of magnitude from 177 to 477 K,and such change is independent of film thickness and local optical scattering.It is shown that when Ω is varied by 1%,the temperature probing sensitivity is 0.42 K and 1.16 K at low and high temperatures,respectively.Based on Ω,the in-plane thermal conductivity(k)of a∼25 nm-thick suspended WS_(2) film is measured using our energy transport state-resolved Raman(ET-Raman).k is found decreasing from 50.0 to 20.0 Wm^(−1) K^(−1) when temperature increases from 170 to 470 K.This agrees with previous experimental and theoretical results and the measurement data using our FET-Raman.The R3 technique provides a very robust and high-sensitivity method for temperature probing of nanomaterials and will have broad applications in nanoscale thermal transport characterization,non-destructive evaluation,and manufacturing monitoring. | Hamidreza Zobeiri Nicholas Hunter Shen Xu Yangsu Xie Xinwei Wang | 2022 | International Journal of Extreme Manufacturing2022，4，3： | 0 |
| 16 | On the Positronium Continuum and 0.511 MeV Line in Solar Flares显示文摘We have studied the influence of the density of the annihilation region on the positronium continuum.A relation between the ratio 3γ/2γ and the density is explicitly given,with which one can derive directly from the observed 3γ/2γthe density where the annihilation occurs.A unique solution may be found from the observed width of the 0.511 MeV line.We applied the method to three flares observed by GRS/SMM.It is shown that due to the measuring uncertainties in the 0.511 MeV line width,we cannot distinguish a chromospheric source from a coronal source,though both accurately localized.To improve the measuring accuracy of the 0.511 MeV line and the ratio 3γ/2γ will be an important step for a better understanding of the annihilation process in solar flares. | Wei-QunGan JinChang You-PingLi YangSu L.I.Miroshnichenko | 2004 | Chinese Journal of Astronomy and Astrophysics2004，4，4： | 0 |
| 17 | Thermal conductivity of carbon-based nanomaterials:Deep understanding of the structural effects显示文摘The thermal conductivity of carbon-based nanomaterials(e.g.carbon nanotubes,graphene,graphene aerogels,and carbon fibers)is a physical property of great scientific and engineering importance.Thermal conductivity tailoring via structure engineering is widely conducted to meet the requirement of different applications.Traditionally,the thermal conductivity-temperature relation is used to analyze the structural effect but this relation is extremely affected by effect of temperature-dependence of specific heat.In this paper,detailed review and discussions are provided on the thermal reffusivity theory to analyze the structural effects on thermal conductivity.For the first time,the thermal reffusivity-temperature trend in fact uncovers very strong structural degrading with reduced temperature for various carbon-based nanomaterials.The residual thermal reffusivity at the 0 K limit can be used to directly calculate the structure thermal domain(STD)size,a size like that determined by x-ray diffraction,but reflects phonon scattering.For amorphous carbon materials or nanomaterials that could not induce sufficient x-ray scattering,the STD size probably provides the only available physical domain size for structure analysis.Different from many isotropic and anisotropic materials,carbon-based materials(e.g.graphite,graphene,and graphene paper)have Van der Waals bonds in the c-axis direction and covalent bonds in the a-axis direction.This results in two different kinds of phonons whose specific heat,phonon velocity,and mean free path are completely different.A physical model is proposed to introduce the anisotropic specific heat and temperature concept,and to interpret the extremely long phonon mean free path despite the very low thermal conductivity in the c-axis direction.This model also can be applied to other similar anisotropic materials that feature Van der Waals and covalent bonds in different directions. | Yangsu Xie Xinwei Wang | 2023 | Green Carbon2023，1，1： | 0 |
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