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Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
An experiment has been built and operated to investigate the pressure difference and the temperature variation through orifice plates in He II forced flow at bath temperatures between 1.7 K and 2.1 K. The flow of He II is generated with...
Autonomous ground vehicles (AGVs) are expected to be used extensively in unstructured, outdoor, undulating environments for tasks such as search and rescue, homeland security, fire fighting, reconnaissance, and surveillance. These tasks...
Skid-steered robots are commonly used in outdoor applications due to their mechanical simplicity, high maneuverability, and robustness. The maneuverability of these robots allows them to perform turning maneuvers ranging from point turns...
The importance of permanent magnets with rare earth metals has grown as emerging markets increase their demand for technologies made with these magnets. However, the constraints of rare earth suppliers, the environmental impact of the...
Underwater vehicles suffer from reduced maneuverability with conventional lifting appendages due to the low velocity of operation. Circulation control offers a method to increase maneuverability independent of vehicle speed. However, ...
Efficient fabrication of seamless RF cavities by hydroforming requires the use of very fine microstructure. In this study, grain refinement of commercial purity (99.99%) niobium was carried out by equal channel angular extrusion (ECAE)...
It is desirable to use nanostructured composites to produce high-strength, high-conductive materials for magnet development. In this research, severe plastic deformation (e ≥ 2.0) is used to produce nanostructured Cu-Ag composites in an...
In tokamak fusion reactors, such as ITER, superconducting strands are subjected to repeated Lorentz force loading and unloading which may degrade performance over time. In addition to Lorentz force when cooling from reaction heat...
The deployment of high flux magnetic processing in industry requires the ability to model the expected results of a proposed processing, and the current assumptions in the literature did not reflect the actual outcome in measurements of...
A bio-inspired, modular terpolymer adhesive has been synthesized containing three different functionalities: a photocrosslinking segment, wet adhesion segment, and a water soluble segment. Wet adhesion is brought on by an amino acid from...
Ontogenetic growth can profoundly affect the ability of organisms to perform ecologically-relevant feeding tasks that ultimately impact survival. In particular, bite-force generation is exceedingly important for vertebrates that process...
The need for actuators that are adaptable for use in a wide array of applications has been the motivation behind actuator development research over the past few years. Recent developments at the Advanced Aero-Propulsion Laboratory (AAPL)...
Solar stills are a popular choice for distilling water and removing harmful contaminants like arsenic and other minerals in some rural parts of Argentina. The processes involved in solar still are environment friendly as they are driven...
Humans and terrestrial legged animals can travel with great degree of stability, agility and maneuverability over a large number of terrains such as gravel, grass, sand, rock, mud, snow, asphalt, river-beds and more. They can also...
To increase autonomous ground vehicle (AGV) safety and efficiency on outdoor terrains the control system should have settings for individual terrains. A first step in such a terrain-dependent control system is classification of the...
The National High Magnetic Field Laboratory is building a world record all superconducting magnet known as the "32T". It requires many thousands of parts, but in particular one kind is unusually expensive to manufacture, called "heater...
Animals have demonstrated that legged locomotion can provide an efficient, rapid and robust means for traversing natural and artificial terrains and obstacles while employing several distinct locomotion modalities. This has led...
Systems with a priori unknown, and time-varying dynamic behavior pose a significant challenge in the field of Nonlinear Model Predictive Control (NMPC). When both the identification of the nonlinear system and the optimization of control...
Mass spectrometry, featured at high sensitivity, is an indispensable tool in the field of biophysics for studying intact protein and protein complex. Fourier Transform Ion Cyclotron Resonance (FTICR) mass spectrometer offers unparalleled...
Carbon nanotubes (CNTs) are known to exhibit outstanding mechanical, electrical, thermal, and coupled electromechanical properties. CNTs can be employed towards the design of an innovative strain sensor with enhanced multifunctionality...
Trailing vortices are both a fundamental and practical problem of fluid mechanics. Fundamentally, they provide a canonical vortex flow that is pervasive in finite aspect ratio lifting bodies, practically producing many adverse effects...
Concentrating solar power (CSP) is a unique renewable energy technology. CSP systems have the ability to provide electricity, refrigeration and water purification in one unit. This technology will be extremely helpful in improving the...
The flow field of supersonic impinging jets is known to be highly unsteady particularly for S/VTOL aircraft configuration. This can have adverse effects such as high noise levels, unsteady acoustic loads and sonic fatigue on the aircraft...
Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
