نتایج جستجو برای: tissue equivalent materials
تعداد نتایج: 1431542 فیلتر نتایج به سال:
Introduction: Adipose tissue affects body hemostasis by secreting a variety of proteins named adipokines. Plasma levels of apelin decreases after exercise; however, the evidence on gene regulation in adipocytes is rare. The aim of this study was to investigate the association of daily physical activity and applein gene expression and its serum levels in visceral and subcutaneous adipose tissues...
Monte Carlo simulations of lung equivalent materials often involve the density being artificially lowered rather than a true tissue (or plastic) and air composition simulated. This study used atomic analysis to test suitability this method. Atomic was also 3D printing PLA or ABS with simulate tissue. It found that there minimal difference when using an density, 0.8 % in Nitrogen largest observe...
In the estimation of additional shielding requirements for primary beam apart from that provided by patient and hardware in the x-ray beam, there is the need to distinguish between attenuation and hardening properties of materials in comparison. In this work, numerical comparison of attenuation and hardening properties of phantom (Lucite, soft tissue, water) and hardware (aluminum and steel) ma...
background: recent pre-clinical and clinical studies indicate that irradiation in the dose range of 15 to 30 gy can reduce rate of restenosis in patients who have undergone an angioplasty. the use of filled balloon with radioactive solution was proposed as one of the possible intravascular irradiation techniques. materials and methods: the monte carlo n-particle transport code (mcnp4b) was used...
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