نتایج جستجو برای: optic fiber

تعداد نتایج: 163594  

Journal: :anesthesiology and pain medicine 0
seyyed hassan etemadi department of anesthesiology, hazrat fatemeh medical center, iran university of medical sciences, tehran, iran amir bahrami students’ scientific research center, tehran university of medical sciences, tehran, iran ali mohammad farahmand students’ scientific research center, tehran university of medical sciences, tehran, iran mohammad mahdi zamani department of anesthesiology and pain medicine, iran university of medical sciences, tehran, iran; department of anesthesiology and pain medicine, iran university of medical sciences, tehran, iran. tel/fax: +98-2188989162

conclusions in this case, after failure of awake fiberoptic intubation, awake direct laryngoscopy and blind nasal intubation, finally awake nasal intubation in sitting position, using fiberoptic led to success. case presentation the present case discusses a patient with severe deformity of mandible that was admitted for correction with free-flap. the following intubation techniques were used fo...

2014
Fei Ye Yiwei Zhang Bing Qi Li Qian

Fiber-optic sensing is a field that is developing at a fast pace. Novel fiber-optic sensor designs and sensing principles constantly open doors for new opportunities. In this paper, we review a fiber-optic sensing technique developed in our research group called frequency-shifted interferometry (FSI). This technique uses a continuous-wave light source, an optical frequency shifter, and a slow d...

Journal: :IEEE Trans. Communications 1997
Cherng-Shung Hsu Victor O. K. Li

This paper examines code-division multiple-access (CDMA) techniques used in slotted fiber-optic packet networks. Since the inherent properties and signal processing of the conventional communication channels are different from those of the fiber-optic channels, new code sequences must be constructed for fiber-optic applications. The goal of our research is to analyze the performance of fiber-op...

2016
Miguel Gonzalez-Herraez Massimo Filograno Pedro Corredera Alvaro Andres-Alguacil Miguel Rodriguez-Plaza

We review some recent work on fiber-optic sensors for the high-speed railway environment. In particular, we show convenient fiber-optic solutions for rail and wheel monitoring, perimeter security and catenary protection in changeover sections. OCIS codes: (060.2370) Fiber optic sensors; (060.3735) Fiber Bragg gratings

Journal: :Pediatrics 1997
K L Tan

OBJECTIVE To evaluate the efficacy of fiber-optic phototherapy using the standard Ohmeda Biliblanket, a large version, double standard Biliblankets, and conventional phototherapy using daylight fluorescent lamps in full-term, healthy infants with nonhemolytic hyperbilirubinemia. METHODS Full-term, healthy infants with nonhemolytic hyperbilirubinemia (bilirubin concentration, >255 micromol/L o...

2010
Chin Chang

The monitoring of transportation infrastructure health is currently reliant on transportation maintenance teams. Scheduled and periodic inspections of most infrastructures are performed by manual and visual operations, which are generally time consuming and costly procedures. The use of fiber-optic sensor technology makes it possible to realize continuous, real-time and automatic health monitor...

2017
Utkarsh Sharma Xing Wei

Fiber optic interferometry can be broadly explained as the techniques that utilize the fundamental principles of optical interference to measure physical sample properties or detect changes via sensing systems that are partially or completely realized using fiber optic components. While the field of optical interference dates back to second half of seventeenth century, the advent of fiber optic...

1997
J. Dorighi S. Krishnaswamy J. Achenbach

A fiber optic ultrasonic system is described which monitors the cure of an epoxy resin. Ultrasound is generated using a high-power optical fiber to deliver high-energy pulses of light to the prepared surface of an aluminum mold that contains the curing epoxy resin. The generated ultrasound is detected using a local fiber optic ultrasound sensor embedded in the curing epoxy resin. The system was...

2012
Bahareh Gholamzadeh Hooman Nabovati

Fiber optic sensor technology offers the possibility of sensing different parameters like strain, temperature, pressure in harsh environment and remote locations. these kinds of sensors modulates some features of the light wave in an optical fiber such an intensity and phase or use optical fiber as a medium for transmitting the measurement information. The advantages of fiber optic sensors in c...

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