نتایج جستجو برای: periodic materials
تعداد نتایج: 516054 فیلتر نتایج به سال:
Background & Objective: Prostate cancer is the most common malignancy and the eighth cause of death in Iran. Angiogenesis is the major cause of metastatic and drug resistance in this cancer. The aim of this study was to investigate the effects of 10 weeks of high intensity periodic exercises on resting levels of some angiogenesis markers and also the pulmonary function of men with prostate can...
We present a generally symmetrical circuit model to describe all kinds of metamaterials with effective permittivity and permeability. The model is composed of periodic structures whose unit cell is a general T-type circuit. Using the effective medium theory, we derive analytical formulations for the effective permittivity and effective permeability of the circuit model, which are quite differen...
Dislocation dynamics dictate the mechanical behavior of materials. Dislocations in periodic crystalline materials have been well documented. On the contrary, dislocations in cylindrical carbon nanotubes, particularly in multiwalled carbon nanotubes (MWCNTs), remain almost unexplored. Here we report that a room temperature 1/2<0001> sessile dislocation in a MWCNT becomes highly mobile, as charac...
Here we present the Mendeleev-Meyer Force Project which aims at tabulating all materials and substances in a fashion similar to the periodic table. The goal is to group and tabulate substances using nanoscale force footprints rather than atomic number or electronic configuration as in the periodic table. The process is divided into: (1) acquiring nanoscale force data from materials, (2) paramet...
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