Results 31 to 40 of about 1,331,409 (150)
, 2001 利用非平稳信号的时频分析方法研究了一类非线性系统的频率特性和阻尼特性随运动形态的变化规律 ,得到了能简洁、直观地反映系统基本非线性动力学特性的广义骨架线性系统 (简称GSLS)和骨架曲线· 在此基础上 ,利用时频滤波方法根据系统非平稳响应信号对非线性系统进行辨识 ...
王丽丽, 张景绘
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Gaoya dianqi, 2012 由于绝缘材料的电阻率具有非线性和各向异性,故在计算换流变压器阀侧绕组直流电场时需要考虑到绝缘材料的非线性和正交各向异性。笔者采用ANSYS二次开发技术,计算了在考虑绝缘材料电阻率随场强和温度变化情况下的非线性直流电场及非线性各向异性直流电场。计算结果表明,在考虑绝缘材料电阻率非线性和各向异性的情况下,电场分布与不考虑这些条件下的分布有很大的不同。因此,换流变压器阀侧绕组的直流电场应该按非线性各向异性场计算。
李晓辉 +3 more
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Multi‐gradient warming reshapes functional traits and adaptive responses of alpine meadow plants
Functional Ecology, Volume 40, Issue 9, Page 2889-2905, September 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant functional traits in alpine meadows are critical indicators of ecosystem responses to climate warming, yet dynamic changes in trait networks across warming gradients and their consequences for community functions remain poorly understood.
Zhiwei Yan +6 more
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Guangtongxin yanjiu, 2020 针对偏振复用—正交相移键控（PDM-QPSK）无中继光纤传输系统中的非线性损伤问题,文章重点研究了一种基于K最邻近（KNN）聚类算法的非线性补偿技术。通过计算测试数据到所有训练数据点的距离对测试数据进行分类实现了对光纤非线性补偿。研究结果表明,在112 Gbit/s PDM-QPSK 350 km色散管理无中继光纤传输系统中,基于KNN算法的非线性补偿技术能够有效地补偿传输光纤非线性引起的损伤。特别地,在系统误码率为10-3时,经KNN算法非线性补偿后输入端信号的光功率可提升约1 dBm。
田霖 +7 more
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Dual‐Layer Solid Electrolyte Interphase Enables Effective Suppression of Lithium Dendrites
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT The heterogeneous solid electrolyte interphase (SEI) at the Li metal anode often leads to slow and uneven Li+ flux, causing severe Li dendrite growth. Herein, we combine X‐ray photoelectron spectroscopy and cryogenic transmission electron microscopy to demonstrate that a dual‐layer SEI, consisting of an inorganic inner layer and an organic ...
Huaping Wang +4 more
wiley +1 more source
Dianci bileiqi, 1987 1.绪言在电子回路中使用的SiC、ZnO为主的各种非线性电阻,主要用于吸收电路中的过电压,而非线性优异的ZnO非线性电阻则己成为目前的主要方向。为此,本文将叙述ZnO非线性电阻的评价方法。 ZnO非线性电阻是含有特定的添加物（Bi2O3,CoO,MnO,Sb2O3,Cr2O3等）ZnO的烧结体,是在烧结体中呈现有新的晶界现象的一种陶瓷,它赋有优异的非线性和吸收过电压能力。因此 ...
住吉干夫, 松冈道雄, 严幼良
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Microstructure Tailoring of Laser Powder Bed Fused Nb521 Alloy Toward Strength‐Ductility Synergy
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Niobium‐based refractory alloys are promising candidates for high‐temperature aerospace structures, yet their limited ambient‐temperature ductility and poor processability remain major barriers to broader implementation. Here, Nb521 alloy was fabricated by laser powder bed fusion (LPBF), and the effects of processing conditions and subsequent ...
Lele Qin +7 more
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Dianci bileiqi, 2002 介绍了固相法和共沉淀包膜法制备氧化锌非线性电阻粉体的工艺 ,并比较了两种粉体制备方法对氧化锌非线性电阻电性能的影响。与固相法相比 ,共沉淀包膜法极大的改善了氧化锌非线性电阻微观结构均匀性 ,因此提高了氧化锌非线性电阻的电性能 ...
王兰义 +4 more
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Challenges in Advancing LGBTQ+ Equity and Research in Southeast Asian Countries: A Brief Report
Sexuality, Gender &Policy, Volume 9, Issue 3, August 2026.ABSTRACT This brief report provides preliminary findings on the challenges faced by academics, community workers, and other individuals involved in LGBTQ+ rights activism and research in Southeast Asia (SEA), with larger shares of participants from the Philippines, Malaysia, Thailand, and Vietnam.
Viet D. M. Trinh +2 more
wiley +1 more source
Guangtongxin yanjiu, 2002 光纤非线性效应是限制波分复用 （ WDM）通信系统发展的主要因素 .文章系统地讨论了 WDM光纤系统中各种光纤非线性效应 ,着重于多信道非线性效应及其对系统的影响 .提出了各种有效地抑制非线性效应的措施 ,供系统设计者参考 .
林其银, 杨胜利
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