aluminum is very sensitive to oxidation reactions. if a fresh surface of melt is exposed to air, it oxidizes quickly and an oxide layer covers the melt surface. new oxide films formed in a very short time during casting are thin and folded. the metal surface can be folded and create a double-oxide film as a result of the melt turbulence. the entrance of this double-oxide film into the melt is o...

background: separate radon and thoron measurements in soil are very important in assessment of internal exposure due to inhalation of such radioactive gases. materials and methods: in this study, a low cost, small size, passive diffusion chamber has been developed for simple measurement of radon-222 and radon-220(thoron) gases separately in soil. the diffusion chamber consists of two films and ...

background: based on the efficacy of paromomycin ointment and recent ongoing clinical trials of combination of paromomycin and gentamicin, a new physical form of films of the paromomy­cin and gentamicin was prepared and anti- leishmania activities of the prepared films were as­sessed in vitro and in vivo. methods: paromomycin 15% and gentamicin 0.5% was incorporated in a film using ethyl cellu­...

The objective of this session is to identify that how films, movies and TV series can affect on anxiety level of the audiences. In this session, actors, directors, and psychologists are going to discuss about the role of TV series, films and their contents on decreasing or increasing of anxiety and the importance of “identification” between audiences and actors or actresses.

the objective of this session is to identify that how films, movies and tv series can affect on anxiety level of the audiences. in this session, actors, directors, and psychologists are going to discuss about the role of tv series, films and their contents on decreasing or increasing of anxiety and the importance of “identification” between audiences and actors or actresses.

In this study various yttria doped  zirconia based thin films were prepared by the aqueous tape casting method. The rheological property of the paste was studies. The phase content and microstructure of the samples was investigated by X-ray diffraction and scanning electron microscope, respectively. The mechanical properties of thin films were studied by Vickers microhardness and nanoindentatio...

We study melting mechanisms in single and polycrystalline colloidal films composed of diameter-tunable microgel spheres with short-ranged repulsive interactions and confined between two glass walls. Thick films (>4 layers), thin-films (≤4 layers), and monolayers exhibit different melting behaviors. Thick films melt from grain boundaries in polycrystalline solid films and from film-wall interfac...

copper films of 300 nm thickness deposited by planar magnetron sputtering on glass substrates, for substrate temperatures between 300 and 500 k, and deposition rate of 10 ?s?1. microstructure of these films was obtained by x-ray diffraction, while the texture mode of diffractometer was used for stress measurement by the sin2? technique. the components of the stress tensor are obtained using mea...

The objectives of this study were to develop composite films using various gelatin sources with corn oil (CO) incorporation (55.18%) and to investigate the mechanical and physical properties of these films as potential packaging films. There were increases (p < 0.05) in the tensile strength (TS) and puncture strength (PS) of films when the concentration of gelatin increased. The mechanical prop...