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Full-Text Articles in Engineering
Electrostatic Nanosmearing Architecture Of Additive Functional Groups During High Shear Mixing Of Pharmaceutical Blends, Sajan Kumar Chatarla
Electrostatic Nanosmearing Architecture Of Additive Functional Groups During High Shear Mixing Of Pharmaceutical Blends, Sajan Kumar Chatarla
Masters Theses
The main objective of the research project is to detect and quantify the rate and extent of nanosmearing of hydrophobic functional groups of additives on multiple pharmaceutical particles during high shear mixing of formulations due to electrostatics affecting critical blend properties on the bulk scale. We accomplished this task by systematically detecting the electrostatics during powder flow and its consequence on the nanosmearing distribution of additives during mixing. In the first stage, the electrostatic behavior of particles was correlated to the powder flow. Secondly, its relative influence on nanosmearing of additives during mixing was determined by developing a methodology to …
Measurement Of Activity And Stability Of Physical Vapor Deposition (Pvd) Coated Crystal Surfaces, Anuradha Krishnan
Measurement Of Activity And Stability Of Physical Vapor Deposition (Pvd) Coated Crystal Surfaces, Anuradha Krishnan
Masters Theses
The overall objective of this research work is to investigate the hydrophilic and hydrophobic forces acting on organic crystal planes and understanding the interaction of functional groups with additive molecular nanolayers. Crystals of acetaminophen and lactose were made and the surface forces were tested on Atomic Force Microscope (AFM). Uniformity of crystal surface was confirmed from the AFM study in the first stage. The growth factors of crystal planes as a function of time were studied. Adhesion forces on plain crystals were measured on both two different organic crystals made of acetaminophen and lactose. In the second stage, …
The Effect Of Flexibility On Interaction Of Two Fibers Settling In Moderate Reynolds Numbers, Ahmed Alhasan
The Effect Of Flexibility On Interaction Of Two Fibers Settling In Moderate Reynolds Numbers, Ahmed Alhasan
Masters Theses
The behavior of solid particles in a fluid has become an important topic. The need to improve our understanding of the mechanisms of fluid-particle interaction is the motivation for the present work. The characteristics of fibers suspensions depend on the many variables such as flexibility, Reynolds numbers, density and aspect ratio. The aim of this work is to probe effects of these variables on sedimentation behavior by using a fiber-level simulation technique. In this techniques, a D3Q15 model in a lattice Boltzmann equation with a Bhatnagar-Gross-Krook (BGK) approximation is used to simulate motion of fluids, where Navier-Stokes equations are solved …
Minimization Of Metamerism In Wood Grain Printing Using Different Gcr Settings, Vinay Anil Turke
Minimization Of Metamerism In Wood Grain Printing Using Different Gcr Settings, Vinay Anil Turke
Masters Theses
In printing industry, prototyping is necessary to ensure quality reproduction of jobs. Conventional printing processes like gravure cannot be used for prototyping because of high manufacturing cost of gravure cylinders. Such challenges can be successfully tackled by use of relatively cheap and flexible printing processes, such as inkjet. Even though inkjet printing is a cost effective way for prototyping, it has its own limitations, especially in the case of woodgrain printing. Wood-grain patterns need to be printed with a release coating and adhesive. Inkjet printers are incapable of printing release coating and adhesive because release coat and adhesive require certain …