Raman radial breathing mode frequency of boron nitride nanotubes with bounded uncertain material properties

Micro & nano letters

article

Esmaeal Ghavanloo¹  S. Ahmad Fazelzadeh¹ 

[1] School of Mechanical Engineering, Shiraz University

关键词: boron compounds;    III-V semiconductors;    wide band gap semiconductors;    semiconductor nanotubes;    Raman spectra;    chirality;    Raman radial breathing mode frequency;    boron nitride nanotubes;    bounded uncertain material properties;    analytical formulation;    arbitrary chirality;    uncertainty level;    convex modelling;    BN;   

DOI  :  10.1049/mnl.2015.0263

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Endotracheal intubation is the gold standard in airway management either as a means to administer general anesthesia or for mechanical ventilation in critically ill patients for protecting the airway when the airway reflexes are dysfunctional. Macintosh laryngoscope is the standard laryngoscope used for intubation though advances in science have resulted in development of laryngoscopes of different designs. The process of laryngoscopy and intubation (L&I) can result in significant hemodynamic response and this is a topic of debate and research in anesthesia. A comprehensive review of hemodynamic responses to various laryngoscope designs has been undertaken here. Tracheal intubation contributes to more hemodynamic response compared to laryngoscopy alone. The hemodynamic responses to L&I are exaggerated in the elderly and those with uncontrolled hypertension. Orotracheal intubation causes less hemodynamic response as compared to nasotracheal intubation. Laryngoscope design, duration of L&I and the forces applied on the laryngoscope all contribute to hemodynamic fluctuations. McCoy blade and videolaryngoscopes where L&I can be performed without the aid of stylets provide better attenuation of hemodynamic response compared to intubation using the Macintosh laryngoscope. Fibreoptic orotracheal intubation with the aid of combined lingual traction and jaw thrust maneuver provides superior attenuation of hemodynamic response compared to use of laryngoscope.

【 授权许可】

CC BY|CC BY-ND|CC BY-NC|CC BY-NC-ND