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4篇 您的检索式:作者名="L.DENG"
    题名 作者 年代 出处 被引量
1Plastic deformation of a Zr-based bulk metallic glass fabricated by selective laser melting显示文摘Fully amorphous Zr_(52.5)Cu_(17.9)Ni_(14.6)Al_(10)Ti_(5) bulk metallic glass(BMG) samples with a relative density exceeding 98% were fabricated via selective laser melting(SLM).High fracture stresses of around1700 MPa and a reproducible plastic strain of about 0.5% were obtained for cylindrical SLM samples.The analysis of the observed serrations during compressive loading implies that the shear-band dynamics in the additively manufactured samples distinctly differ from those of the as-cast glass.This phenomenon appears to originate from the presence of uniformly dispersed spherical pores as well as from the more pronounced heterogeneity of the glass itself as revealed by instrumented indentation.Despite these heterogeneities,the shear bands are straight and form in the plane of maximum shear stress.Additive manufacturing,hence,might not only allow for producing large BMG samples with complex geometries but also for manipulating their deformation behaviour through tailoring porosity and structural heterogeneity.L.Deng K.Kosiba R.Limbach L.Wondraczek U.Kühn S.Pauly 2021Journal of Materials Science & Technology2021,,1:2
2Waveform-based speech recognition using hidden filter models:Parameter selection and sensitivity to power normalization显示文摘H.Sheikhzadeh L.Deng 0,,:1
3HMM-based strategies for enhancement of speech signals embedded in nonstationary noise显示文摘H.Sameti H.Sheikhzadeh L.Deng R.L.Brennan 0,,05:1
4Hybrid level anharmonicity and interference-induced photon blockade in a two-qubit cavity QED system with dipole–dipole interaction显示文摘We theoretically study a quantum destructive interference (QDI)-induced photon blockade in a two-qubit driven cavity quantum electrodynamics system with dipole–dipole interaction (DDI). In the absence of dipole–dipole interaction,we show that a QDI-induced photon blockade can be achieved only when the qubit resonance frequency is different from the cavity mode frequency. When DDI is introduced the condition for this photon blockade is strongly dependent upon the pump field frequency,and yet is insensitive to the qubit–cavity coupling strength. Using this tunability feature we show that the conventional energy-level-anharmonicity-induced photon blockade and this DDI-based QDI-induced photon blockade can be combined together,resulting in a hybrid system with substantially improved mean photon number and second-order correlation function. Our proposal provides a nonconventional and experimentally feasible platform for generating single photons.C.J.ZHU K.HOU Y.P.YANG L.DENG 2021Photonics Research2021,9,7:1
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