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Análise SAR em crianças, adultos e doentes com tumores cerebrais
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ISBN10: 6208125049
ISBN13: 9786208125042
Publisher: Edicoes Nosso Conhecimento
Published: Sep 25 2024
Pages: 68
Weight: 0.25
Height: 0.16 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786208125042
Publisher: Edicoes Nosso Conhecimento
Published: Sep 25 2024
Pages: 68
Weight: 0.25
Height: 0.16 Width: 6.00 Depth: 9.00
Language: Portuguese
A comunicação sem fios é uma das formas mais populares de comunicação, cujo princÃpio básico é a troca de energia electromagnética através da antena. Esta tecnologia de comunicação é certamente útil para nós, mas os seus inconvenientes também são prejudiciais. A tecnologia de comunicação sem fios provoca uma grave radiação electromagnética para a humanidade quando se utiliza o telemóvel. A antena irradia ondas electromagnéticas e o tecido da nossa cabeça absorve esta radiação. Produz calor no nosso tecido cerebral, o que provoca perturbações biológicas. Por isso, é necessário um estudo adequado para reduzir esta radiação e os seus danos. Os valores SAR têm de ser medidos para quantificar o efeito no cérebro humano. Nesta investigação, o valor SAR foi investigado para três tipos de fantomas de cabeça, nomeadamente uma cabeça humana adulta saudável, um fantoma de cabeça com um tumor e um fantoma de cabeça de criança. Medimos o valor a partir de diferentes distâncias e de diferentes posições da antena em relação ao fantoma da cabeça humana.
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