Heat transfer modelling in the Si–Ge nanoparticle composites by numerical solution of the equation of phonon radiative transfer

Micro & nano letters

article

Meysam Mohamadi¹  Mozaffar A. Mehrabian¹  Afrasiab Raisi² 

[1] Department of Mechanical Engineering, Shahid Bahonar University of Kerman;Department of Mechanical Engineering, Shahrekord University

关键词: nanoparticles;    nanocomposites;    heat transfer;    radiative transfer;    Boltzmann equation;    thermal conductivity;    particle size;    Monte Carlo methods;    phonons;    Ge-Si alloys;    numerical analysis;    thermoelectricity;    conductive heat transfer;    silicon-germanium nanoparticle composites;    numerical solution;    phonon radiative transfer;    phonon Boltzmann transport equation;    equation of phonon radiative transfer;    nanoscale material;    semiconducting nanoparticle composite;    cubic silicon nanoparticles;    germanium substrate;    three-dimensional heat transfer;    temperature distributions;    effective thermal conductivity;    silicon nanoparticle size;    atomic percentage;    interface density;    Monte Carlo simulation;    thermoelectric energy conversion;    Si-Ge;   

DOI  :  10.1049/mnl.2018.0128

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Asymptomatic large hiatal hernias may lead to iron deficiency anemia due to occult and massive bleeding from linear gastric erosions or ulcers on the mucosal folds at the level of the diaphragm called the Cameron lesions. The diagnosis is usually made during upper gastrointestinal system endoscopies. Current therapy includes the medication with proton pump inhibitors in combination with oral iron supplements and in some cases surgical reconstruction of hiatal hernia with fundoplication. We present a case of a 78-year-old woman who was admitted to the outpatient clinic with the diagnosis of iron deficiency anemia without signs of acute gastrointestinal bleeding. She was treated with medication and her follow-up gastroscopy showed a total cure. She is asymptomatic for two years after treatment with proton pump inhibitors and iron supplements. Cameron lesions should be kept in mind as an unusual cause of iron deficiency anemia due to gastrointestinal bleeding.

【 授权许可】

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