Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 6 of 6 for “"in-situ control"”.
-
In situ control of lubricant properties for reduction of power cylinder friction through thermal barrier coating
Lowering lubricant viscosity to reduce friction generally carries a side effect of increased metal-metal contact in mixed or boundary lubrication, for example near top ring reversal along the engine cylinder liner. A strategy to reduce viscosity without increased metal-metal contact involves …
-
In-situ prediction on sensor networks using distributed multiple linear regression models
Within sensor networks for environmental monitoring, a class of problems exists that requires in-situ control and modeling. In this thesis, we provide a solution to these problems, enabling model-driven computation where complex models are replaced by in-situ sensing and communication. These …
-
Proton Exchange Membrane Fuel Cell Systems Based on Aromatic Hydrocarbon and Partially Fluorinated Disulfonated Poly(Arylene Ether) Copolymers
… describes the past and recent progress in proton exchange membranes (PEM) for fuel cells. In particular the synthesis and characterization of materials for advanced alternative PEM were studied with an emphasis on structure-property and structure-property-performance relationships. The …
-
Chemical vapor deposition of functional and conformal polymer thin films for the formation and modification of nanostructures
Autonomous mini- and microscale devices require the miniaturization of component devices such as on board integrated circuits (ICs) and electrochemical power sources. A paradigm shift to micro/nanostructured 3D geometries can enable high device performance within a small areal footprint. …
-
Multi-Physics Sensing and Real-time Quality Control in Metal Additive Manufacturing
… ways to achieve metal additive manufacturing. However, this method still suffers from deformation, delamination, dimensional error, and porosities. One of the most significant issues is poor printing accuracy, especially for small features such as turbine blade tips. The main reason for …
-
Development of Electrodes for an Electrostatically Actuated Mesh Reflector
In-space manufacturing (ISM) of large structures with distributed actuators can enable radio frequency (RF) reflectors with previously inaccessible combinations of size and surface precision. A candidate approach for distributed actuation in large space structures is macroscale electrostatic …