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Advanced Transport Technologies for NASA Thermal Management/Control Systems
The objective of this project is to develop technologies that can be used to design mechanicallypumped two-phase cooling loop in microgravity for NASA Space systems. Specifically, design a system with a ~1-m2 -flat coolant ...
Tribological performance of self-lubricating aluminum matrix nanocomposites: Role of graphene nanoplatelets
In the present investigation, aluminum matrix nanocomposites reinforced by graphene nanoplatelets were synthesized by powder metallurgy method. The microstructure of the Al-Graphene nanoplatelets sample was investigated ...
State of the art on tribological behavior of polymer matrix composites reinforced with natural fibers in the green materials world
Natural fiber reinforced polymer composites have emerged as a potential environmentally friendly and cost-effective alternative to synthetic fiber reinforced composites. Therefore, in the past decade, a number of major ...
Versatile microrobotics using simple modular subunits
The realization of reconfigurable modular microrobots could aid drug delivery and microsurgery by allowing a single system to navigate diverse environments and perform multiple tasks. So far, microrobotic systems are limited ...
Helicobacter pylori Couples Motility and Diffusion to Actively Create a Heterogeneous Complex Medium in Gastric Mucus
Helicobacter pylori swims through mucus gel by generating ammonia that locally neutralizes the acidic gastric environment, turning nearby gel into a fluid pocket. The size of the fluid zone is important for determining the ...
Choice of computational method for swimming and pumping with nonslender helical filaments at low Reynolds number
The flows induced by biological and artificial helical filaments are important to many possible applications including microscale swimming and pumping. Microscale helices can span a wide range of geometries, from thin ...
Continuous-flow sorting of microalgae cells based on lipid content by high frequency dielectrophoresis
This paper presents a continuous-flow cell screening device to isolate and separate microalgae cells (Chlamydomonas reinhardtii) based on lipid content using high frequency (50 MHz) dielectrophoresis. This device enables ...
Characterizing the boundary lateral to the shear direction of deformation twins in magnesium
The three-dimensional nature of twins, especially the atomic structures and motion mechanisms of the boundary lateral to the shear direction of the twin, has never been characterized at the atomic level, because such ...