Results 31 to 40 of about 68,929,072 (249)

Drivers of success in implementing sustainable tourism policies in urban areas [PDF]

open access: yes, 2015
The existing literature in the field of sustainable tourism highlights a number of barriers that impede the implementation of policies in this area. Yet, not many studies have so far considered the factors that would contribute to putting this concept ...
Altinay L.   +32 more
core   +1 more source

Sero-prevalence and Risk Factors Study of Foot and Mouth Disease and Farmers Perception on Vaccinating Cattle against the Disease in Sidama Region, South Ethiopia

open access: yesEast African Journal of Biophysical and Computational Sciences, 2023
Foot and mouth disease (FMD) is a severe, highly contagious viral disease of livestock that has a significant economic impact. A cross-sectional study was conducted from September 2019 to June 2020 in three selected districts of Sidama region, southern ...
Mishamo Sulayeman   +4 more
doaj   +1 more source

Improved dielectric properties achieved by blending PP and PVDF

open access: yesIET Nanodielectrics, Volume 2, Issue 2, Page 78-81, June 2019., 2019
Polymer films composed of polypropylene (PP) and poly(vinylidene fluoride) (PVDF) have been fabricated by extrusion with filming system. Owing to the low content of crystallites and the lubricant of carbon black, the commercial product PVDF 370 can be compatible with PP by simply blending at the molten state and the obtained film has improved ...
Benhui Fan   +5 more
wiley   +1 more source

Modality, Potentiality and Contradiction in Quantum Mechanics [PDF]

open access: yes, 2014
In [11], Newton da Costa together with the author of this paper argued in favor of the possibility to consider quantum superpositions in terms of a paraconsistent approach.
A Ourjoumtsev   +24 more
core   +3 more sources

Frequency tunable graphene metamaterial reflectarray for terahertz applications

open access: yesThe Journal of Engineering, Volume 2018, Issue 9, Page 753-761, September 2018., 2018
A graphene‐based metamaterial (GMM) reflectarray antenna with frequency tunable radiation characteristics has been investigated in this study. The unit‐cell element consists of graphene split‐ring‐resonator (SRR) with two gaps printed on a grounded SiO2 substrate. The electrical properties of the metamaterial unit‐cell have been determined at different
Saber H. Zainud‐Deen   +2 more
wiley   +1 more source

Hepatitis C virus infection

open access: yesCanadian Medical Association Journal, 2015
Hepatitis C virus (HCV) results in more lost years of life and more illness than any infectious disease in Ontario.[1][1] Screening individuals born between 1945 and 1965 using an anti-HCV antibody test is currently recommended in the United States.[2][2]
Michael Fralick, J. Feld
semanticscholar   +1 more source

J Fluorescence [PDF]

open access: yes, 2005
The scope of this paper is to illustrate the need for an improved quality assurance in fluorometry. For this purpose, instrumental sources of error and their influences on the reliability and comparability of fluorescence data are highlighted for ...
Ebert, P.   +7 more
core   +2 more sources

Construction of parallel one-dimensional interpolators in C++

open access: yesВестник Дагестанского государственного технического университета: Технические науки
Objective. The purpose of this article is to research and develop interpolators in the C++ programming language, including linear, quadratic and cubic interpolators, as well as a one-dimensional RBF interpolator.
F. V. Abilova   +2 more
doaj   +1 more source

Terahertz band communication using plasma wave propagation in multilayer graphene heterostructures

open access: yesIET Cyber-Physical Systems: Theory &Applications, Volume 3, Issue 2, Page 89-98, June 2018., 2018
Graphene‐based heterostructures provide a viable platform to implement optoelectronic devices that can operate in the terahertz (THz) band. In this study, the authors focus on multilayer (ML) graphene as the building block to implement high‐frequency and low‐energy plasmonic interconnects for on‐chip signalling in next‐generation systems.
Shaloo Rakheja
wiley   +1 more source

Fabrication and origin of asymmetric polyvinylidene fluoride‐carbon nanotube/cyanate ester materials with high dielectric constant and low dielectric loss through building double‐layered structure

open access: yesHigh Voltage, Volume 2, Issue 1, Page 32-38, March 2017., 2017
High dielectric loss has been the biggest sticky problem for high‐k conductor/polymer composites. Herein, a new asymmetric material consisting of one layer of β‐phase poly(vinylidene fluoride) (PVDF) and another layer of carboxylated carbon nanotube (eCNT)/cyanate ester (CE) composite was fabricated, coded as PVDFx–eCNTq/CE, where x is the thickness of
Longhui Zheng   +4 more
wiley   +1 more source

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