The purpose of this study was to investigate the DEPOSITION of the hydroxyapatite (HA) coating via the electrophoresis procedure. The HA DEPOSITION was performed in an ethanol, methanol, acetone and isopropanol suspension. Methanol was found to be the best DEPOSITION media. Among the different environmental conditions, including the encapsulation of the samples under two vacuum types of pressure (10-5-10-4 and 2x10-2 Torr) and also the purge of the argon gas in the tube-like furnace, the optimum environment was the one demonstrating the encapsulation under the vacuum pressure of 2x10-2 Torr (washing with argon gas of 99.9% purity). After the examination of 3 sintering temperatures (1020, 1050 and 1100oC), the sintering temperature at 1050oC illustrated the most desired results. The samples sintered under these conditions were apparently intact, most of the interfacial part of the coating was found to be attached to the substrate surface irregularities and no single cracks were observed.

Much importance was given to dry DEPOSITION over the past few decades as it deteriorated the environmental conditions and resulted in subsequent health effects. This paper starts with an overall scenario of dry DEPOSITION research; it focuses on: various particulate dry DEPOSITION flux measurement methods, comparison of various published numerical values on dry DEPOSITION velocity and factors controlling dry DEPOSITION velocity. This work provides a technical overview to research studies on the current state of dry DEPOSITION and limitations of various measurement methods. Relationship between dry DEPOSITION flux and particle concentration is discussed with the help of previous works. Various mathematical models used to predict dry DEPOSITION velocity are discussed. Dry DEPOSITION velocity of particulates around the world is compared to gain perspective on factors influencing dry DEPOSITION.

This paper is concerned with asphaltene DEPOSITION in fluid flowing through pipelines. Brownian diffusion and drag, gravitational, thermophoresis, buoyancy, and shear removal are considered as possible mechanisms in the asphaltene DEPOSITION process. The thermo-physical properties of the fluid were obtained from Iranian oil fields. A model was used in the pipeline DEPOSITION modeling to predict the asphaltene DEPOSITION rates under flow conditions. The effects of particle size, temperature gradient, and fluid velocity were studied on asphaltene DEPOSITION rate. The results showed that, among the above-mentioned mechanisms, the gravitational and thermophoresis forces played a significant role in the formation of the deposit under the flow conditions. To verify the model, some predictions were compared with the available aerosol DEPOSITION data in the literature.

We investigate the DEPOSITION temperature, pH and DEPOSITION time that govern evolution of the nanoparticle shape, size and density of ZnSe nanoparticle arrays. The nanoparticle arrays were grown on glass substrate using a facile chemical bath DEPOSITION method. The samples were also characterized by absorbance spectra for energy band gap determination and scanning electron microscopy. In comparison to other similar works, our method is simple, low cost and can be easily controlled. We find that temperature helps to tailoring the nanoparticle shape and has a critical role in comparison with other parameters such as pH and DEPOSITION time.