Results 1 to 10 of about 73,517 (263)

Underwater acoustic signal acquisition based on optical interferometry in shallow water [PDF]

open access: yesAUT Journal of Electrical Engineering, 2023
Here, it is investigated the results of the implementation of an interferometric optical fiber acoustic sensor based on fiber Bragg grating (FBG). It is investigated the importance of different types of interferometer configurations as Michelson or Mach ...
Aliasghar Abniki   +2 more
doaj   +1 more source

Icing Condition Predictions Using FBGS [PDF]

open access: yesSensors, 2021
Icing is a hazard which is important for the aerospace industry and which has grown over the last few years. Developing sensors that can detect the existence not only of standard icing conditions with typically small droplet size, but also of Supercooled Large Droplet (SLD) conditions is one of the most important aims in order to minimize icing hazards
Miguel González del Val   +3 more
openaire   +3 more sources

Effects of Golden Sea Cucumber Extract (Stichopus Hermanii) on Fasting Blood Glucose, Plasma Insulin, and MDA Level of Male Rats (Rattus Norvegicus) Induced with Streptozotocin

open access: yesFolia Medica Indonesiana, 2021
Diabetes mellitus (DM) is one of disease that its incidence increases every year worldwide. The condition of DM can cause various complications caused by oxidative stress.
Dita Sukmaya Prawitasari   +2 more
doaj   +1 more source

Temperature sensitivity comparison between bare FBG and buffered FBG [PDF]

open access: yes2014 IEEE 5th International Conference on Photonics (ICP), 2014
The work presented in this paper compares the temperature sensitivity between bare fiber Bragg grating (FBG) and acrylate buffered FBG. Both FBGs were subjected to temperature variation and their wavelength shifts were recorded. It has been found that buffered FBG is more sensitive than bare FBG due to the higher thermal expansion of the acrylate ...
N. F. Razali   +4 more
openaire   +1 more source

Effect of Intramuscular Injection of Vitamin D on 25-Hydroxyvitamin D Levels, Glycaemic Control, and Liver Enzymes in Libyan Patients with Type 2 Diabetes Mellitus

open access: yesLibyan International Medical University Journal, 2022
Background Vitamin D is a fat-soluble hormone that plays an important role in glycaemic control. In addition, it has a positive effect on improving liver enzyme function.
Hafsa M. Alemam   +2 more
doaj   +1 more source

Code Division Multiplexing Applied to FBG Sensing Networks: FBG Sensors Designed as Discrete Prolate Spheroidal Sequences (DPSS-FBG Sensors) [PDF]

open access: yesJournal of Lightwave Technology, 2017
[EN] We propose and demonstrate a sensing system with fiber Bragg grating sensors designed as discrete prolate spheroidal sequences (DPSS). In this way, we can encode all of the sensing devices in the network making sure that each sensor is completely distinguishable from each other even under overlapping conditions.
Triana-Infante, Cristian Andres   +2 more
openaire   +3 more sources

High Temperature Measurement with Low Cost, VCSEL-Based, Interrogation System Using Femtosecond Bragg Gratings

open access: yesSensors, 2022
In this article, a cost-effective and fast interrogating system for wide temperature measurement with Fiber Bragg Gratings is presented. The system consists of a Vertical Cavity Surface Emitting Laser (VCSEL) with a High Contrast Grating (HCG)-based ...
Konrad Markowski   +5 more
doaj   +1 more source

Laboratory Testing of FBGs for Pipeline Monitoring [PDF]

open access: yesSensors, 2020
The monitoring of the effects of geohazards on pipelines can be addressed by optical fiber Bragg gratings (FBGs). They are sensitive to strain and bending, and are installed on the external surface of pipelines at discrete locations. A joint approach of theoretical analysis and laboratory experiments is useful to check the reliability of the ...
Carlino A., Godio A.
openaire   +4 more sources

Simulation Study on Spectral Characteristics of FBG based on Integrated Structure of Core-and-cladding

open access: yesGuangtongxin yanjiu, 2021
It is difficult to prepare Fiber Bragg Grating (FBG) with integrated structure of core-and-cladding. This paper first analyzes the structure characteristics of FBG with integrated structure.
Yun-hui DONG   +3 more
doaj   +1 more source

Effect of Aphanizomenon flos-aquae (AFA) or Orlistat on hyperlipidemic adult male Albino rats [PDF]

open access: yesJournal of Medical and Life Science, 2019
Background: Hyperlipidemia, hyperlipoproteinemia, or dyslipidemia means the presence of elevated or abnormal levels of lipids and/or lipoproteins in the blood. Hyperlipoproteinemia happens when there are large amounts of lipids (fats) in the bloodstream.
Samir Zahkouk   +3 more
doaj   +1 more source

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