Results 31 to 40 of about 2,573,895 (298)

Low-Cost High-Sensitivity Strain and Temperature Sensing Using Graded-Index Multimode Fibers [PDF]

open access: yes, 2007
We report a low-loss, low-cost high-sensitivity all-fiber strain and temperature sensor based on mode interference in graded-index multimode fibers. Blueshifts with strain and temperature sensitivities of 18.6 pm/microstrain and 58.5 pm/°C have been ...
Liu, Yu, Wei, Li
core   +2 more sources

Sensitivity analysis of the parameters of a cholera model

open access: yesJournal of Applied Sciences and Environmental Management, 2018
In this paper, a deterministic mathematical model is formulated to analyse the degree of sensitivity of some factors that aid cholera transmission and management.
O.J. Peter   +4 more
doaj   +1 more source

Geohazards regionalization along highways in Shandong Province, China

open access: yesGeomatics, Natural Hazards & Risk, 2020
The disturbance of the highway construction to the terrain and the natural environmental factors are the main causes of the geohazards along the highway.
Hongzhi Yang, Yue Zhao, Qianfang Cheng
doaj   +1 more source

Using sensitivity analysis to identify key factors for the propagation of a plant epidemic [PDF]

open access: yesRoyal Society Open Science, 2018
Identifying the key factors underlying the spread of a disease is an essential but challenging prerequisite to design management strategies. To tackle this issue, we propose an approach based on sensitivity analyses of a spatiotemporal stochastic model ...
Loup Rimbaud   +6 more
doaj   +1 more source

High sensitivity refractive index sensor based on simple diffraction from phase grating [PDF]

open access: yes, 2016
We present a technique for refractive index sensing using a phase grating structure. A grating under normal incidence can be designed such that the 1st order diffracted light travels at a diffraction angle of 90o with respect to the 0th order.
Adarsh Sandhu   +3 more
core   +2 more sources

Prediction of cardiovascular disease risk by cardiac biomarkers in 2 United Kingdom cohort studies: does utility depend on risk thresholds for treatment? [PDF]

open access: yes, 2016
We tested the predictive ability of cardiac biomarkers N-terminal pro B-type natriuretic peptide (NT-proBNP), high-sensitivity troponin T, and midregional pro adrenomedullin for cardiovascular disease (CVD) events using the British Regional Heart Study ...
Hart, Carole   +11 more
core   +1 more source

A spatial refractive index sensor using whispering gallery modes in an optically trapped microsphere [PDF]

open access: yes, 2006
We propose the use of an optically trapped, dye doped polystyrene microsphere for spatial probing of the refractive index at any position in a fluid. We demonstrate the use of the dye embedded in the microsphere as an internal broadband excitation source,
Mosk, Allard   +3 more
core   +3 more sources

Mathematical model on the dynamics of youth play in Perú

open access: yesSelecciones Matemáticas, 2022
This paper proposes a simple mathematical model that represents the dynamics of youth play for adolescents from 11 to 18 years. This model is defined by a system of 3 differential equations, which are based on continuous processes.
Heydy Mayumy Carrasco Huaccha   +1 more
doaj   +1 more source

PCF Based Sensor with High Sensitivity, High Birefringence and Low Confinement Losses for Liquid Analyte Sensing Applications [PDF]

open access: yes, 2015
In this paper, we report a design of high sensitivity Photonic Crystal Fiber (PCF) sensor with high birefringence and low confinement losses for liquid analyte sensing applications.
Ademgil, Huseyin, Haxha, Shyqyri
core   +3 more sources

Diagnostic value of combined serum biomarkers for the evaluation of liver fibrosis in chronic hepatitis C infection: A multicenter, noninterventional, observational study [PDF]

open access: yes, 2018
Background/Aims: The hepatitis C virus (HCV) infection is important cause of chronic hepatitis. Liver biopsy is considered the gold standard for assessment of fibrosis but this procedure is an invasive procedure.
Akhan, S.   +34 more
core   +1 more source

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