the main objective of this research was to synthesize and characterize gold-coated fe3o4 /sio2 nanoshells for clinical applications. magnetite nanoparticles (nps) were prepared via co-precipitation. the results showed that smaller particles can be synthesized by decreasing the naoh concentration, which in our case this corresponded to 35 nm by using 0.9 m of naoh at 750 rpm. the nps were then m...

nanostructured alumina thin films were coated on stainless steel by sol-gel dip coating method. in order to prevent crack formation, al2o3 films were kept in a solvent bath immediately after coating to reduce the rate of drying. effects of calcination temperature and withdrawal speed on structural properties were analyzed using xrd and sem. topography and thickness of coatings were analyzed by ...

Learning outcomes: By the end of the module, students should have achieved: • a clear understanding of the meaning of temporal and spatial correlation; • a good working knowledge of standard models to describe both the systematic and the random parts of an appropriate model; • the ability to implement and interpret these models in standard applications; • an understanding of some of the key con...

Learning outcomes: By the end of the module, students should have achieved: • a clear understanding of the meaning of temporal and spatial correlation; • a good working knowledge of standard models to describe both the systematic and the random parts of an appropriate model; • the ability to implement and interpret these models in standard applications; • an understanding of some of the key con...

the aim of this work is to synthesize and investigate the performance of yttria-doped zirconia solgelcoatings in the chemical corrosion prevention of zircaloy-4 (zirconium alloy) in a 1 n h2so4environment. the influence of four different molar ratios of water to alkoxide, namely 1, 4, 12, and20, on the coating quality and its corrosion prevention performance was investigated. differentialtherma...

corn )zea mays l. (is one of the most crop that its forage produce is developed in the country. this field research carried out in order to investigate the effect of seed coating with growth promoting bacteria )azotobacter and pseudomonas (and micronutrients )zn, b, mo, cu, fe and mn (on quantitative and qualitative yield of forage corn )zea mays l. sc. 640 (.the experiment design consisted of ...

Article history: Received 22 July 2016 Received in revised form 23 December 2016 Accepted 23 December 2016 Available online 05 January 2017 Paleomagnetic and cycle stratigraphic analyses of nearly 7000m of section from continuous cores in the Newark basin and an overlapping 2500meter-thick composite outcrop and core section in the nearby Hartford basin provide an astrochronostratigraphic polari...