Results 61 to 70 of about 36,566 (236)
, 2010 This paper studies the possibility of using axicons in Free Space Optics (FSO) systems. The behavior of the pseudo- Bessel beams generated by "logarithmic" and "linear" axicons, with or without stops, was analyzed through the Huygens-Fresnel integral of diffraction in cylindrical coordinates.
Ambrosio, Leonardo A. +2 more
openaire +2 more sources
Mapping Dental Care for Children and Adolescents With Rare Diseases: A Brazilian Multicentre Study
Community Dentistry and Oral Epidemiology, EarlyView.ABSTRACT Objectives To describe the landscape of dental care provided by specialised centres for children and adolescents with rare diseases (RDs) in the state of Minas Gerais, southeastern Brazil. Methods A retrospective cross‐sectional study was conducted involving individuals aged 0–18 years with a confirmed diagnosis of a RD who received care at ...
Heloisa Vieira Prado +21 more
wiley +1 more source
ROLE OF SOIL AND CLIMATE CHARACTERISTICS IN THE FORMATION OF RADIOACTIVE CONTAMINATION OF MUSHROOMS
Радиационная гигиена, 2017 The present work is devoted to an analysis of the regularities of 137Cs accumulation by forest mushrooms after the Chernobyl accident and the role of physical-chemical soil characteristics and climate characteristics in the formation of radioactive ...
M. Kaduka +3 more
doaj
Transient response analysis for DC-DC boost converter [PDF]
, 2014 DC-DC Boost Converter and Hybrid Posicast Controller is developed and simulated using MATLAB Simulink software. DC-DC Boost converter has a very high overshoot and a very high settling time which produce oscillated output response.
Libau, Charles Muling
core
Weather Effects on FSO Network Connectivity
Journal of Optical Communications and Networking, 2012 The use of relays is one of the most promising methods for mitigating impairments of the performance of free-space optical (FSO) systems and extending their limited transmission range. However, several factors contribute to significant link performance degradation.
Vavoulas, A. +2 more
openaire +2 more sources
Community Dentistry and Oral Epidemiology, EarlyView.ABSTRACT Background International economic evaluations have not found convincing evidence that the application of fluoride varnish (FV) in preschool children is a cost‐effective anti‐caries measure, and there is a lack of economic evaluations of FV in the Brazilian context.
Izabel Monteiro Dhyppolito +3 more
wiley +1 more source
Orthopaedic Surgery, EarlyView.This is the first study to examine the global alignment of the hip, knee, ankle, and lower limb after total hip arthroplasty in DDH Crowe type IV patients with a follow‐up period of more than 10 years. This is also the first study of its kind (as far as we know) in which both the unaffected and the affected sides were monitored, and full normalization ...
Huiling Chen +7 more
wiley +1 more source
Jordanian Journal of Computers and Information TechnologyFree-space optical (FSO) communication is a vital solution to meet the growing demand for high-bandwidth satellite-to-ground communication, offering advantages such as higher data rates and security compared to traditional RF systems.
Mouna Garai, Maha Sliti
doaj +1 more source
Effect of Pointing Errors on the Performance of Hybrid FSO/RF Networks
IEEE Access, 2019 The performance of a free space optics (FSO) transmission suffers from the atmospheric turbulence and the attenuation in foggy environment. By employing relay nodes, the error rate and the coverage area of the FSO communication system can be ...
Shubha Sharma +2 more
doaj +1 more source
The Limits of Regulatory Capture: Explaining the UK Payment Protection Insurance Mis‐Selling Scandal
Public Administration, EarlyView.ABSTRACT To what extent does regulatory agencies' failure to protect the public from harm result from undue industry influence? We argue that “regulatory capture” is invoked too easily to explain regulatory failure. To re‐examine the relationship between regulatory capture and regulatory failure, we use process‐tracing to study UK regulatory decision ...
Eva Heims
wiley +1 more source