Results 71 to 80 of about 5,382 (129)

取样光纤Bragg光栅特性的数值模拟分析

Guangtongxin yanjiu, 2010
文章应用传输矩阵法对取样光纤布拉格光栅（SFBG）的反射谱进行了数值模拟,并分析了折射率调制幅度、占空比、取样周期和光栅长度等光栅参数对其反射谱的影响,在此基础上用切趾函数对其进行旁瓣干扰处理,得到了较为理想的8通道SFBG反射谱。
刘晴, 黄勇林
doaj  

PMMA塑料光纤衰减测量的研究

Guangtongxin yanjiu, 2002
介绍了塑料光纤衰减的测量方法 ,研究了 2种塑料光纤端面处理方法对光纤衰减的影响 .用所研制的塑料光纤衰减谱仪测量了本实验室制备的塑料光纤的衰减谱 ,最低损耗小于2 0 0 d B/km（ 65 0 nm）
孙会刚, 储九荣, 温序铭, 耿宝宏, 钟力生, 徐传骧   +5 more
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基于差分演化算法的FBG参数重构技术

Guangtongxin yanjiu, 2008
文章提出了一种基于差分演化算法的光纤布拉格光栅（FBG）参数重构技术。基于均匀FBG的目标反射谱,可利用差分演化算法寻找一组光栅参数,根据这组参数计算得到的反射谱与目标反射谱偏差最小,该组参数即为重构的光纤光栅参数。数值实例表明,差分演化算法计算效率高,结果精确,是一种实用的参数重构方法。
文晓艳
doaj  

[Optimized decomposition of dynamic electroencephalography-functional near infrared spectroscopy brain functional networks for the analysis of repetitive transcranial magnetic stimulation combined with motor training]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Lu J, Lin J, Liu Y, Zhang Y, Wang C, Han J, Yu N.   +6 more
europepmc   +1 more source

[Application of near-infrared spectroscopy in the early identification of neonatal gastrointestinal diseases]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Gulizuohere A, Nuerya R.
europepmc   +1 more source

[Construction and practice of the "Construction Supports Competitions-Competitions Nurture Teaching-Teaching Promotes Learning" closed-loop innovative teaching mode： a case study of micro-plasma emission spectrometer setup and trace element analysis experiment]. [PDF]

Se Pu
Xue WY, Ke D, Zhang X, Zhou XD, Yang RN, Chao QC, Chen ML, Meng H, Yang T.   +8 more
europepmc   +1 more source

[Detection of motor intention in patients with consciousness disorder based on electroencephalogram and functional near infrared spectroscopy combined with motor brain-computer interface paradigm]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Chai X, Wang N, Song J, Yang Y.
europepmc   +1 more source

[Research progress on brain functional near-infrared spectroscopy technology in the field of neonates]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Yang Q, Liu YF.
europepmc   +1 more source

[A deep transfer learning approach for cross-subject recognition of mental tasks based on functional near-infrared spectroscopy]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhang Y, Liu D, Gao F.
europepmc   +1 more source

[Determination of six whitening ingredients in cosmetics by ultra performance liquid chromatography coupled with photodiode array detector and corona charged aerosol detector]. [PDF]

Se Pu
Li X, Wang Y, Fan F, Zhou W, Chen B, Shi H, Cai G, Liu Y, He Y.   +8 more
europepmc   +1 more source