Jason H. Nadler

Learn More
Remora fishes have a unique dorsal suction pad that allows them to form robust, reliable, and reversible attachment to a wide variety of host organisms and marine vessels. Although investigations of the suction pad have been performed, the primary force that remoras must resist, namely fluid drag, has received little attention. This work provides a(More)
The remora fishes are capable of adhering to a wide variety of natural and artificial marine substrates using a dorsal suction pad. The pad is made of serial parallel pectinated lamellae, which are homologous to the dorsal fin elements of other fishes. Small tooth-like projections of mineralized tissue from the dorsal pad lamella, known as spinules, are(More)
A critical task in predicting and tailoring the acoustic absorption properties of porous media is the calculation of the frequency-dependent effective density and compressibility tensors, which are explicitly related to the micro-scale permeability properties. Although these two quantities exhibit strong sensitivity to physics occurring at complex(More)
Thermal management is of paramount importance in high powered electronic devices. Although composites can provide new materials with improved thermal performance, major hurdles exist in their implementation. Here some principles from asymptotic homogenization analysis are used to demonstrate how a reinforced epoxy's properties can be tailored to design(More)
Sodium borosilicate (NBS) glass/annealed pyrolytic graphite (APG) fiber composites have been fabricated through a sol-gel process. A glass composition of 80wt% SiO2, 15wt% B2O3, and 5wt% Na2O was chosen, similar to commercial NBS glasses such as Pyrex. A variety of gels with increasing weight percentages of APG were produced and subsequently heat treated(More)
A glass wafer that contains cerium-activated gadolinium-based scintillator has been tested as a nuclear radiation monitor. The detector is prepared by mixing powdered gadolinium and cerium (3+) bromides with alumina, silica, and lithium fluoride, melting the mixture at 1,400°C, and then quenching and annealing the glass. The resulting clear glass matrix(More)
Glass-ceramic nanocomposites comprising GdBr₃/CeBr₃ loaded sodium-aluminosilicate glasses in which scintillating crystallites are precipitated in situ from a host glass matrix were studied. This materials system shows promise as an alternative to single-crystal scintillators, with potential to be fabricated into a wide variety of sizes, shapes, and(More)
Composites are attractive as they can be directly tailored for a given thermal management application. While bulk thermal conductivity and coefficient of thermal expansion (CTE) can be measured, the structural and mechanical phenomena that dominate this behavior for a given system are less efficiently described experimentally. In this work, microstructural(More)
iii ACKNOWLEDGEMENTS I must first thank my family and friends for their relentless support and encouragement throughout my academic career and my life. Without Lauren's pep talks, Daddy's unwavering confidence, Mama's indignation on my behalf, and Michael's daily engineering discussions, I would have never made it this far. They and my uncle, Steve Betts,(More)