George Y. Baaklini

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Membrane-type matrix metalloproteinase I (MT1-MMP)-deficient mice were found to have severe defects in skeletal development and angiogenesis. The craniofacial, axial, and appendicular skeletons were severely affected, leading to a short and domed skull, marked deceleration of postnatal growth, and death by 3 wk of age. Shortening of bones is a consequence(More)
The present study focuses on the ability of excipients to induce the crystallization of a specific polymorphic form of pyrazinamide (PZA) and more interestingly, to block the irreversible solid-solid transition of the metastable forms of the PZA to the stable form at room temperature. We outline an experimental protocol for the production of a structurally(More)
The nonlinear model of the cracked Jeffcott rotor is investigated, with the particular focus on study of rotor’s vibrational response using tools of nonlinear dynamics. The considered model accounts for nonlinear behavior of the crack and coupling between lateral and torsional modes of vibrations. Load torque is applied to the rotor which is laterally(More)
The first prototype wireless eddy current (EC) probe for on-wing inspection was demonstrated in a F100 PW-220 engine without external cabling at the Air National Guard overhaul facility in Des Moines Iowa. Wireless NDE probes have potential safety and economic benefits leading to prevention or mitigation of safety significant propulsion system malfunctions.(More)
Capabilities and expertise related to the development of links between nondestructive evaluation (NDE) and finite element analysis (FEA) at Glenn Research Center (GRC) are demonstrated. Current tools to analyze data produced by computed tomography (CT) scans are exercised to help assess the damage state in high temperature structural composite materials. A(More)
The goal of this paper is to show the potential of fuzzy sets and neural networks, often referred to as soft computing, for aiding in all aspects of manufacturing of advanced materials like ceramics. In design and manufacturing of advanced materials it is desirable to find which of the many processing variables contribute most to the desired properties of(More)
A universal winding machine is designed and constructed to manufacture a Multidirection Composite (MDC) flywheel. The machine has three translation axes (XYZ) for the main carriage, three rotation axes around XYZ and an axis of mandrel rotation. Radial rings comprising fibers in the radial direction and hoop rings with fibers in the hoop direction are(More)
Since its founding, NASA has been dedicated to the advancement of aeronautics and space science. The NASA Scientific and Technical Information (STI) Program Office plays a key part in helping NASA maintain this important role. The NASA STI Program Office is operated by Langley Research Center, the Lead Center for NASA's scientific and technical information.(More)
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