摘要：磁性液体兼具液体材料的流动性和固体材料的磁性,能够在重力场和磁场的作用下长期稳定存在。磁性液体具有独特的一阶浮力特性,在磁场梯度的作用下能够悬浮起比自身密度大的非磁性物体。基于磁性液体的一阶浮力特性,设计了一种新型的磁性液体触觉传感器。当接触压力作用在悬浮触棒的非磁性触点时,悬浮触棒的移动将引起霍尔元件处的磁场变化,进而输出电压信号。该结构能够进行接触压力、表面轮廓和微小位移的同时测量。该触觉传感器体积小,相比于传统的硅片式触觉传感装置成本更低。磁性液体相比于固体材料来说,能够在系统中起到缓冲吸能的作用,进而提高了传感器系统的耐冲击性。在0~0.09 N的接触压力测量范围内,测量精度能够达到10-2 N量级,灵敏度3.34 V/N,线性度误差3.4%,迟滞误差1.4%,分辨率1.1%F.S.。

摘要：男中音咏叹调《普罗旺斯陆地和海洋》选自意大利作曲家朱塞佩·威尔第的歌剧《茶花女》。威尔第这部作品极富戏剧性冲突,能够充分展现演唱者的功力,这也使这部作品成为检验男中音歌唱水平的“试金石”。悠长绵密的旋律线条、饱满灵动的情绪转变以及持续的高音对演唱者的演唱技巧提出了较高要求。掌握作品的细节并进行技巧处理是演绎好这首男中音咏叹调作品的关键所在。

摘要：韩熙载,字叔言,一生博学高才,精通音律、书画,其放浪形骸、狂放不羁的性格对后世的文人阶级产生了巨大的影响,被誉为中国十大名画中的《韩熙载夜宴图》,便是十分清晰、形象的把韩熙载私人音乐生活呈现在大众的视野下。我们不仅可以通过这幅画作看出韩熙载生活的细节,还可以以小见大,通过分析图画中的音乐细节,解读出中国传统音乐发展的脉络与政治因素对于时下音乐所产生的影响。

摘要：Metal chalcogenide compounds can be used as high-performance cathodes for aqueous Zn ***,the low accessible surfaces and violent volumetric expansion limit their properties and *** address these,phase-engineering strategies coupled with a hollow structure were applied to regulate the adsorption/desorption of OH−on the electrode surface and enhance the electrochemical *** this study,using a Se@C nanorod template,a series of carbon nanotube(CNT)-supported nickel selenides,including cubic NiSe_(2),NiSe_(2)/Ni_(0.85)Se composites,and hexagonal Ni_(0.85)Se,were synthesized through an in situ selenylation process for the first *** to the large specific surface,high porosity,and hollow carbon skeleton,the optimized NiSe_(2)/Ni_(0.85)Se/CNT has a high specific capacity of 616 Cg^(−1),excellent rate capability,and stable cycling *** addition,its inside Faradic mechanism was investigated using a series of ex situ characterizations and density functional theory ***,the fabricated Ni//Zn battery presents a high energy density of 311.4 W h kg^(−1) at 3485 W kg^(−1) and long cycling *** study offers an ingenious strategy for designing nickel selenide electrodes and deeper perception for its Faradic mechanism in alkaline Zn battery.