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本文阐述有关单模光纤模埸直径的定义、特性、用途和测量方法,模埸直径是表征单模光纤结构参数和传输特性的有用参数,可导出等效阶跃折射率光纤参数,并能预计单模光纤的连接埙耗、微弯损耗、散射特性、色散特性和截止波长等。根据对模埸直径的定义,CCITT推荐两种参考测试法,即传输埸法和横向偏移法。
陶作民, 张万金
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[Application of dynamic contrast enhanced status in multiparametric magnetic resonance imaging for prostatic cancer with PI-RADS 4 lesion]. [PDF]
Yuan CW+6 more
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[Application of Magnetic Resonance Imaging Report Combined With VI-RADS Bi-Parametric and Multi-Parametric Scoring Systems in Bladder Cancer Diagnosis]. [PDF]
Xu H+5 more
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[Construction of A Nomogram Prediction Model for PD-L1 Expression in Non-small Cell Lung Cancer Based on 18F-FDG PET/CT Metabolic Parameters]. [PDF]
Hao L, Wang L, Zhang M, Yan J, Zhang F.
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[Design and validation of an automated testing system for essential performance parameters of ventilators]. [PDF]
Li Y+5 more
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[Detection of speech pathology based on parameters of analysis of dysphonia in speech and voice]. [PDF]
Wei M, DU J, Geng L, Wang W.
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