Results 31 to 40 of about 75,103 (286)

Efficient fiber Bragg grating and fiber Fabry-Pe'rot sensor multiplexing scheme using a broadband pulsed mode-locked laser [PDF]

open access: yes, 2005
A pulsed broadband mode-locked laser (MLL) combined with interferometric interrogation is shown to yield an efficient means of multiplexing a large number of fiber Bragg grating (FBG) or fiber Fabry-Perot (FFP) strain sensors with high performance ...
Cranch, G A   +2 more
core   +1 more source

Physical Insight into Dispersionless FBG Designs [PDF]

open access: yesAdvanced Photonics Congress, 2012
We provide physical insight into the role different sections play in inverse-scattering-designed dispersionless FBGs. Using this knowledge we design and fabricate strong (>30dB) bidirectional dispersionless filters.
Zervas, M.N., Durkin, M.K.
openaire   +2 more sources

Review: optical fiber sensors for civil engineering applications [PDF]

open access: yes, 2013
Optical fiber sensor (OFS) technologies have developed rapidly over the last few decades, and various types of OFS have found practical applications in the field of civil engineering. In this paper, which is resulting from the work of the RILEM technical
B Poumellec   +64 more
core   +2 more sources

FBG laser sensor with PS [PDF]

open access: yesElectronics Letters, 2018
Owing to unstable multi‐wavelength lasing, robust measurement is difficult with a fibre Bragg grating (FBG) laser sensor system that uses FBGs as laser cavity mirrors as well as sensors. A stabilising technique is essential for proper data acquisition.
D. Kim, H. Kim, M. Song
openaire   +1 more source

Non-Invasive Fiber Optic Probe Encapsulated Into PolyDiMethylSiloxane for Measuring Respiratory and Heart Rate of the Human Body

open access: yesAdvances in Electrical and Electronic Engineering, 2017
This article describes the design and the functional verification of fiber optic system with an innovative non-invasive measuring probe for monitoring respiratory and heart rate.
Jan Nedoma   +4 more
doaj   +1 more source

Increased H2S synthesizing activity in plasma correlated to fasting blood glucose levels: A study in type 2 diabetes patients

open access: yesAsian Journal of Medical Sciences, 2016
Background: Diabetes mellitus is a major health problem not only in India but worldwide. Our country presently is undergoing an epidemic stage of this non-communicable disease.Though several etiological background of type 2 diabetes has been well ...
Pinaki Saha
doaj   +1 more source

Solid-state interferometric interrogator and multiplexer for high-speed dynamic and absolute FBG wavelength measurement [PDF]

open access: yes, 2013
We present a solid-state FBG array interrogator and multiplexer capable of determining absolute FBG wavelengths and of providing high-speed, high-resolution static and dynamic measurements.
Fusiek, Grzegorz   +3 more
core   +1 more source

Las Casas de infantas solteras: los casos de Juana, Violante e Isabel de Aragón (1375-1392)

open access: yesEn la España Medieval
El propósito de este artículo es estudiar la formación, la composición y el funcionamiento de las Casas de tres infantas solteras de finales del siglo xiv en la Corona de Aragón; considerar las relaciones entre madres e hijas y el propósito de estas ...
Stefano M. Cingolani
doaj   +1 more source

Screening of Polyalthia longifolia and Aloe vera for their phytoextractability of heavy metals in tropical soil of the Niger Delta

open access: yesJournal of Applied Sciences and Environmental Management, 2016
The work focuses on the screening of Polyalthia longifolia and Aloe vera for their phytoextractability of  heavy metal in soil of the Niger Delta. 5kg of soil was polluted with 100 mg of Zn, Fe and Pb each  replicated 9 times.
FBG Tanee, N Amadi
doaj   +2 more sources

Application of Photoplethysmography for Vascular Health Assessment in Healthy Individuals: A Novel Methodology [PDF]

open access: yesJournal of Bioscience and Applied Research
The research investigates using photoplethysmography (PPG) for assessing endothelial function, crucial in understanding cardiovascular diseases. Factors such as smoking, high blood pressure, cholesterol, obesity, and diabetes significantly affect ...
Suha Muneam
doaj   +1 more source

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