Search results for "Coverage"
showing 10 items of 168 documents
Optimization of flat area coverage under connectivity constraint in wireless sensor networks
2022
A wireless sensor network consists of a set of small autonomous units that interact via a network built by their communication modules. They observe their environment, capture information, then manage this information according to their computing and/or storage capacity. To effectively accomplish their task(s), they need to cover as much of the area of interest as possible. It is therefore essential to quantify the quality of their coverage. In this thesis, we therefore seek to best cover an area of interest, with a precise number of sensors. While taking into account the possible overlaps between sensors, we first deploy in a zone of regular dimensions and evaluate the exact coverage using…
Discussion of “Optimal Debt Service: Straight vs. Convertible Debt”
2006
Corporate bond default plays a signifi cant role in today's business environment. According to Moody's, a leading provider of credit ratings, corporate bond issuers that it rated as of January 1, 2004, defaulted on a total of US $16 billion in 2004. Credit default not only affects the equity investors of a firm, but also the debt holders, who may loose part of their credit. Default can also have dramatic consequences for a firm's future operations. Therefore, the decision of if and when to default is important for both the firm and its stakeholders. There is a substantial body of literature on the determination of optimal default points as a strategic decision by the owners of a firm. Accor…
Echo cancellation system for iso-frequency repeaters : contribution to the development of a new generation digital repeater
2014
On-frequency repeaters are a cost-effective solution to extend coverage and enhance wireless communications, especially in shadow areas. However, coupling between the receiving antenna and the transmitting antenna, called radio frequency echo, increases modulation errors and creates oscillations in the system when the echo power is high. According to the communication standards, extremely weak echoes decrease the transmission rate, while strong echoes damage electroni ccircuits because of power peaks. This thesis aims at characterizing the echo phenomenon under different modulations, and proposing an optimized solution directly integrated to industry. We have turned to digital solutions esp…
La criminalización de la transmisión de VIH en los medios: periodismo de sucesos entre el sensacionalismo y la homofobia = Criminalization of HIV tra…
2019
Resumen: Introduccion : La informacion periodistica actual aborda mayoritariamente el VIH como una epidemia de caracter global y ha abandonado el discurso de los grupos de riesgo que vinculo al virus con la comunidad gay. En los ultimos anos, el VIH ha sido objeto de atencion mediatica por la judicializacion de la transmision deliberada del virus. Objetivos : Este trabajo analiza la cobertura periodistica en torno a dos hombres europeos juzgados en 2017: el escoces Daryll Rowe, condenado a cadena perpetua por tratar de infectar con VIH a 10 hombres, y el italiano Valentino Talluto, sentenciado por transmitir el virus a 32 mujeres. El estudio busca identificar las caracteristicas dominantes …
A Look at Valencia’s Elections of the 28th of April and the 26th of May 2019
2020
This paper analyses the main features of the Valencian media coverage of the elections held in Spain in the Spring of 2019 (General, Regional, Municipal, and European elections). We shine a spotlight on the key themes covered by the main newspapers, radio and TV stations, and on the campaign strategies parties used to define ideological blocs on the left and right.
Rituales, descentramientos territoriales y niveles de identidad: La Semana Santa Marinera de Valencia
2011
The aim of this paper is to study how the processes of spatial and identity recomposition brought about by a globalized world affect traditional religious rituals, with particular reference to the <i>Semana Santa Marinera</i> processions in Valencia (Spain). Instead of the ritual giving rise to a single local identity, it can be seen that levels of local identity —while not disappearing— overlap more and more with increasingly vague new territorialities ranging from processional networks based on canon law to state-organized meetings. Media coverage of the ritual means that new virtual communities with no fixed territorial base are created, and the complexity of this phenomenon …
Using partial-orders for detecting faults in concurrent systems
1998
The paper suggests test derivation approaches to obtain test suites for concurrent systems based on the concept of fault coverage criteria in opposition to structural test coverage criteria. Using a partial-order model, called Mazurkiewicz Trace Machine (MTM), for test derivation, the state explosion problem can be alleviated. The derived test suites are characterized by their small size compared to test suites from traditional test derivation approaches and exhibit a defined degree of fault coverage according to certain fault models. The fault models of concurrent systems considered in the paper are based on the most common faults, acceptance, refusal, and transfer faults. A scenario of te…
An Optimized Roadside Units (RSU) Placement for Delay-Sensitive Applications in Vehicular Networks
2015
International audience; Over the last few years, a lot of applications have been developed for Vehicular Ad Hoc NETworks (VANETs) to exchange information between vehicles. However, VANET is basically a Delay Tolerant Network (DTN) characterized by intermittent connectivity, long delays and message losses especially in low density regions [1]. Thus, VANET requires the use of an infrastructure such as Roadside Units (RSUs) that permits to enhance the network connectivity. Nevertheless, due to their deployment cost, RSUs need to be optimally deployed. Hence, the main objective of this work is to provide an optimized RSUs placement for delay-sensitive applications in vehicular networks that imp…
Severe odontogenic infection: An emergency. Case report
2017
Odontogenic infections (OI) are a major reason for consultation in dental practice. They affect people of all ages, and most of them respond well to current medical and surgical treatments. However, some OI can spread to vital and deep structures, overcome the host immune system - especially in diabetic, immunocompromised or weakened patients - and even prove fatal. Ludwig's angina is a severe form of diffuse cellulitis that can have an acute onset and spread very rapidly, bilaterally affecting areas of the head and neck, and may prove life threatening. A case of severe dental infection is presented in which emphasis is placed on the importance of airway maintenance, followed by surgical de…
Universal Health Coverage for Undocumented Migrants. The Spanish Case
2018
Implementation of the universal right to health, along with the UN’s goal to achieve universal health coverage (UHC), face common challenges to ensuring universal health care entitlement. One of these difficulties is health care restrictions for undocumented migrants. A recent example is the Spanish health care regulation that places universal coverage at risk by restricting access to it by this group. The work herein examines the right to health and UHC’s regulations with the aim of determining if access to health care services for undocumented migrants is indeed recognized and if this recognition could therefore be valid to limit those kinds of measures. The UHC proposal does not sufficie…