Results 41 to 50 of about 5,056 (131)
Guangtongxin yanjiu, 2012 文章建立了光纤激光频谱组束的体光栅参数优化模型。研究结果表明,随着体光栅空间频率和折射率调制量的增大,体光栅所允许的光束谱宽减小,光束发散角增大,得到空间频率和折射率调制量优化选择参数。文章还对所选取的体光栅参数进行频谱组束的效率进行了分析。研究表明,采用优化参数的体光栅的频谱组束效率可提高至95%以上。
郝粮宁 +3 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Layered double hydroxides (LDHs) are attractive non‐noble catalysts for overall water splitting (OWS), yet their hydrogen evolution reaction (HER) activity is often limited by suboptimal *H adsorption and a paucity of accessible sites. Herein, we introduce an oxygen‐vacancy (Ov) engineering strategy to construct ultrathin Ni‐Fe LDH nanosheets ...
Qi Liu +8 more
wiley +1 more source
Guangtongxin yanjiu, 1996 介绍了傅立叶交换光萤光谱测试的基本原理；报道了用ＰＬ６１２０设备测得的一些典型的异质结构材料光萤光谱；分析和讨论了光萤光双峰结构、光萤光谱异常温度特性等问题；指出了异质界面上原子排列无序和内应力是造成这些异常现象的物理原因。
丁国庆
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Developing multifunctional luminescent materials with tunable spectra is crucial for plant lighting and information–security applications. To address the critical requirement of plant photosynthesis for blue and red spectral components, a novel lead‐free double perovskite Cs2NaGdCl6: Sb3+, Pr3+ phosphor was designed and synthesized via a ...
Huangyao Chen +7 more
wiley +1 more source
Guangtongxin yanjiu, 2013 对由FBG（布拉格光纤光栅）和LPFG（长周期光纤光栅）构成的SFG（超结构光纤光栅）,采用耦合模方程的相似变换解法,研究了应变梯度和温度梯度对SFG的透射谱和反射谱的影响。模拟结果表明,SFG在应变梯度或温度梯度的作用下,其反射光谱和ν阶包层模的透射光谱按确定规则独立漂移,据此可以同时求出光栅所在位置的应变和应变梯度,或温度和温度梯度。
王永皎, 米浩坤, 梁磊
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Overreliance on Orthographic Similarity in L2‐Japanese Conceptual Processing by L1‐Chinese Learners
International Journal of Applied Linguistics, Volume 36, Issue 2, Page 1807-1820, May 2026.ABSTRACT Orthographic and phonological similarities between first (L1) and second (L2) languages can facilitate L2 processing. Particularly, L1‐Chinese learners of L2‐Japanese can benefit from the shared morphosyllabic Chinese characters (Japanese kanji/Chinese hanzi) because of their similar orthographies.
Xuehan Zhao, Kexin Xiong, Sachiko Kiyama
wiley +1 more source
四川大学学报. 自然科学版, 1998 以Ｈｇ光谱为标准，采用光学多道分析器光栅多色仪的多点定标方法，对可见至近红外区域（０．４～１．１μｍ）范围的光谱进行了波长标量，并对Ｎｅ，Ｈ２及激光二极管光谱进行了实际测量，其中对Ｎｅ用四点标定的误差不大于０．３８ｎｍ．
靳丽红 +3 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Sodium‐ion batteries (SIBs) have emerged as promising candidates for large‐scale energy storage due to their cost‐effectiveness and resource abundance. However, challenges such as sluggish ion diffusion kinetics, structural degradation, and interfacial instability hinder their practical applications.
Yunze Wang +7 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2007 新昌盆地地处中国东南沿海火山-侵入杂岩带的东北端，区内广泛出露晚中生代火山岩与使入岩类，岩石类型丰富，是研究岩石遥感光谱的理想地区.作者对该地区的岩石样品进行了可见-近红外光谱和热红外光谱分析测试，研究了火成岩矿物组成、蚀变特征、共生状态等与遥感光谱的关系，并对其形成机理进行了探讨.
ZHANGDeng-rong(张登荣) +3 more
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Guangtongxin yanjiu, 2011 文章分析了频谱分割放大自发辐射（ASE）注入波长锁定法布里-珀罗激光器（FP-LD）光谱随注入种子光光功率的变化情况。实验研究了ASE频谱分割光源注入波长锁定FP-LD的增益和边模抑制比（SMSR）随注入ASE光功率以及FP-LD注入电流的变化关系。最后比较了经过不同频谱分割方法的注入波长锁定光信号在波分复用-无源光网络（WDM-PON）系统中的传输性能。
徐量, 王磊, 傅焰峰
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