认识并降低噪声对传输粒子保真度的影响, 是量子隐形传态重要的研究方向之一。不同于以前的独立噪声和带记忆的Pauli噪声, 研究了记忆幅值阻尼噪声对保真度的影响, 并给出了一个抵抗该噪声信道的方案。该方案通过让参与者在粒子分发前实施弱测量而粒子接收后实施恢复测量的方式提高保真度。研究结果表明, 记忆幅值阻尼信道的记忆因子强度与保真度大小呈正相关, 并且在部分记忆信道与全记忆信道下弱测量与恢复测量方法也能一定程度上提高传输粒子的保真度。

采用宽带隙有机材料PTB7‑Th： PC₇₁BM作为前电池，窄带隙有机材料PTB7‑Th： IEICO‑4F作为后电池，MoO₃/Au/ZnO薄膜作为中间连接层制备叠层电池。在本研究中，利用真空热蒸发和磁控溅射镀膜的方法制备了MoO₃/Au/ZnO薄膜，不仅具有高透光率，而且有很好的抗溶剂侵蚀性能。此外，为了进一步降低在旋涂后电池活性层时溶液对前电池的侵蚀，采用低沸点的氯仿作为后电池活性层材料的溶剂，并利用动态旋涂成膜的方法，减少溶剂挥发时间。最后获得了效率为9.35%的有机叠层太阳能电池，与单结有机太阳能电池相比，拥有更高的效率，开路电压高达1.4 V。研究表明：MoO₃/Au/ZnO薄膜在制备叠层太阳能电池中具有很大的优势。

The GaN HEMT is a potential candidate for RF applications due to the high frequency and large power handling capability. To ensure the quality of the communication signal, linearity is a key parameter during the system design. However, the GaN HEMT usually suffers from the nonlinearity problems induced by the nonlinear parasitic capacitance, transconductance, channel transconductance etc. Among them, the transconductance reduction is the main contributor for the nonlinearity and is mostly attributed to the scattering effect, the increasing resistance of access region, the self-heating effect and the trapping effects. Based on the mechanisms, device-level improvement methods of transconductance including the trapping suppression, the nanowire channel, the graded channel, the double channel, the transconductance compensation and the new material structures have been proposed recently. The features of each method are reviewed and compared to provide an overview perspective on the linearity of the GaN HEMT at the device level.

动物标本在科普、科研中占有重要的地位，因其资源的珍贵，其修复技术也要不断更新。该文详细介绍了白鸽剥制标本的制作过程并对部分传统标本制作材料做出改良，同时改进了剥制标本毛发修复技术。以制作白鸽剥制标本过程为依据，针对不同类型的羽毛，提出操作的注意事项，为鸟类剥制标本羽毛的修复提供参考。

Potassium-ion batteries (PIBs) have been considered as promising candidates in the post-lithium-ion battery era. Till now, a large number of materials have been used as electrode materials for PIBs, among which vanadium oxides exhibit great potentiality. Vanadium oxides can provide multiple electron transfers during electrochemical reactions because vanadium possesses a variety of oxidation states. Meanwhile, their relatively low cost and superior material, structural, and physicochemical properties endow them with strong competitiveness. Although some inspiring research results have been achieved, many issues and challenges remain to be further addressed. Herein, we systematically summarize the research progress of vanadium oxides for PIBs. Then, feasible improvement strategies for the material properties and electrochemical performance are introduced. Finally, the existing challenges and perspectives are discussed with a view to promoting the development of vanadium oxides and accelerating their practical applications.Potassium-ion batteries (PIBs) have been considered as promising candidates in the post-lithium-ion battery era. Till now, a large number of materials have been used as electrode materials for PIBs, among which vanadium oxides exhibit great potentiality. Vanadium oxides can provide multiple electron transfers during electrochemical reactions because vanadium possesses a variety of oxidation states. Meanwhile, their relatively low cost and superior material, structural, and physicochemical properties endow them with strong competitiveness. Although some inspiring research results have been achieved, many issues and challenges remain to be further addressed. Herein, we systematically summarize the research progress of vanadium oxides for PIBs. Then, feasible improvement strategies for the material properties and electrochemical performance are introduced. Finally, the existing challenges and perspectives are discussed with a view to promoting the development of vanadium oxides and accelerating their practical applications.