Results 21 to 30 of about 1,138,054 (291)

Adaptive Duty Cycling MAC Protocols Using Closed-Loop Control for Wireless Sensor Networks [PDF]

open access: yes, 2011
The fundamental design goal of wireless sensor MAC protocols is to minimize unnecessary power consumption of the sensor nodes, because of its stringent resource constraints and ultra-power limitation. In existing MAC protocols in wireless sensor networks
Kim, Jaehyun, Kim, Seoggyu, Lee, Jaiyong
core   +1 more source

Mitral Annular and Coronary Artery Calcification Are Associated with Mortality in HIV-Infected Individuals. [PDF]

open access: yes, 2015
BackgroundHIV infection increases cardiovascular risk. Coronary artery calcification (CAC) and mitral annular calcification (MAC) identify patients at risk for cardiovascular disease (CVD). The purpose of this study was to examine the association between
Bolger, Ann F   +7 more
core   +3 more sources

Multiple opportunistic infections (pulmonary tuberculosis, Mycobacterium avium complex and parvovirus B19) in a single patient

open access: yesSouthern African Journal of HIV Medicine, 2022
Introduction: HIV infection is a common disease in the South African population. The virus can lead to the development of many opportunistic infections.
Midhun T. John   +6 more
doaj   +1 more source

DDH-MAC: a novel dynamic de-centralized hybrid MAC protocol for cognitive radio networks [PDF]

open access: yes, 2011
The radio spectrum (3kHz - 300GHz) has become saturated and proven to be insufficient to address the proliferation of new wireless applications. Cognitive Radio Technology which is an opportunistic network and is equipped with fully programmable wireless
Maple, Carsten   +2 more
core   +2 more sources

A VHDL Model for Implementation of MD5 Hash Algorithm [PDF]

open access: yesEngineering and Technology Journal, 2013
With the increase of the amount of data and users in the information systems, the requirement of data integrity is needed to be improved as well, so the work has become necessary independently.
Mohammed A. Noaman
doaj   +1 more source

Power Adjustment Algorithm for Higher Throughput in Mobile Ad-Hoc Networks [PDF]

open access: yesE3S Web of Conferences, 2021
In Mobile Ad Hoc Networks (MANETs), power control is necessary in order to reduce power consumption rates, avoid collisions within packets, increase spatial throughput of the system and to reduce contention among flows.
Saravanan K.   +4 more
doaj   +1 more source

MAC Centered Cooperation - Synergistic Design of Network Coding, Multi-Packet Reception, and Improved Fairness to Increase Network Throughput [PDF]

open access: yes, 2011
We design a cross-layer approach to aid in develop- ing a cooperative solution using multi-packet reception (MPR), network coding (NC), and medium access (MAC).
Cloud, Jason   +2 more
core   +2 more sources

discurso panorámico del Museo de Arte Contemporáneo de la Universidad de Chile [mac] y la historiografía del arte chileno

open access: yesAisthesis, 2016
Bajo el supuesto de que es necesario un análisis discursivo sobre el museo y la historia del arte como condiciones de posibilidad del discurso del arte contemporáneo, este análisis de caso plantea que el supuesto teórico del discurso del mac entre 1946 y
Pierre Chateau Cantillana
doaj   +1 more source

Levels of accumulation of heavy metals and activity of radionuclides in narrow-clawed crayfish (Astacus leptodactylus Eschscholtz, 1823) of the Kamianske and Zaporizhzhia (Dnipro) reservoirs

open access: yesRibogospodarsʹka Nauka Ukraïni, 2023
Purpose. To determine the content of heavy metals as well as natural and artificial radionuclides in muscle tissue and carapaces of narrow-clawed crayfish Astacus leptodactylus of the Kamianske and Zaporizhzhia (Dnipro) reservoirs. Methodology.
P. Korzhenevska   +3 more
doaj   +1 more source

Analysis of DoS Attacks at MAC Layer in Mobile Adhoc Networks [PDF]

open access: yes, 2015
—Wireless network security has received tremendous attention due to the vulnerabilities exposed in the open communication medium. The most common wireless Medium Access Control (MAC) protocol is IEEE 802.11, which assumes all the nodes in the network are
Alocious, Chaminda   +2 more
core   +2 more sources

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