Guangtongxin yanjiu, 2015 提出了一种基于FBG（光纤布拉格光栅）的新型双向传输可调谐光分插复用器,同时对该结构的复用解复用原理进行了阐述,通过Optisystem软件验证了结构设计和理论分析的可行性。仿真结果表明,下载波长的边模抑制比在20dB左右。这种器件具有灵活度高、器件利用率高等特点,在波分复用系统中两条线路互为冗余,提升了系统的容错性,有望在光网络中得到应用。
张建亚, 黄勇林
doaj
[Mechanism and research progresses of personalized music in the treatment of tinnitus]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi, 2021 Li G, Li M, Zhang J.
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[Challenges of and Responses to Mental Health Problems in the Post-COVID-19 Era]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue Ban, 2023 Su SZ +6 more
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Gaoya dianqi, 2017 变压器分列转并列现象很常见,其产生的冲击电流可能会破坏变压器、开关等设备,对于配电网的安全稳定运行十分不利,因此提出了一种基于复合开关的冲击电流抑制措施。首先利用戴维宁等值定理建立数学模型,分析了变压器暂态过程冲击电流形成的原因及计算方法,并推导论证了冲击电流、等值阻抗角及电压源相位三者之间的函数关系;然后设计了基于过零检测电路的复合开关分相投切控制模块,并在MATLAB中仿真实验,验证了该方法在对称及不对称系统中均可实现变压器稳态并列;最后,利用傅里叶算法（FFT ...
饶强 +7 more
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[Temporal trend and contributing factors of depressive symptoms in Chinese menopausal women: analysis based on CHARLS panel data]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2022 Li J, Xiao Y, Liao J, Yang C.
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Gaoya dianqi针对构网和跟网型变流器混合并网（异构变流器系统）仍存在振荡风险的问题，该研究首先基于谐波线性化理论建立了构网与跟网型变流器的阻抗模型，并对两种控制策略下的变流器阻抗特性差异进行了对比与分析。然后通过在跟网型控制电压前馈中级联二阶低通滤波器和构网型控制自适应阻尼的方法协同抑制异构变流器系统全频段范围可能产生的振荡，相比未加入协同抑制策略的异构变流器系统稳定裕度大幅提升，且异构变流器系统等效阻抗与电网阻抗之比满足奈奎斯特稳定性判据，降低了振荡发生的可能性 ...
文天舒 +5 more
doaj
[Neural network for auditory speech enhancement featuring feedback-driven attention and lateral inhibition]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiCai Y, Liu X, Liao X, Zhou Y.
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[Communication sound recognition and response modification in the secondary auditory cortex of female mice]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2021 Lei S, Xiao Z.
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[Reversal of hepatic fibrosis: more evidence and more challenges]. [PDF]
Zhonghua Gan Zang Bing Za Zhi, 2022 Zhang JY, Sun YM, Chen SY, You H.
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[Study on the separation method of lung ventilation and lung perfusion signals in electrical impedance tomography based on rime algorithm optimized variational mode decomposition]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiGao G +6 more
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