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 20 of 209 for “"prostheses"”.
-
Supramolecular architectures for neural prostheses
Neural prosthetic devices offer a means of restoring function that have been lost due to neural damage. The first part of this thesis investigates the design of a 15-channel, low-power, fully implantable stimulator chip. The chip is powered wirelessly and receives wireless commands. The chip …
-
Bilayer composite hydrogels for corneal prostheses
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1995.
-
ReflectOns : mental prostheses for self-reflection
… the activity of the user around them, mental prostheses analyze behavioral patterns in a way orthogonal to human cognition. Unlike persuasive interfaces, mental prostheses attempt to align choices with personal goals by cueing the user with just-in-time information. Lastly, these devices …
-
Design and control of powered lower limb prostheses
In the development of powered lower-limb prostheses, providing sufficient power and torque to support amputees’ locomotion is a major challenge, considering prostheses’ weight and size limits. Furthermore, regulating the power delivery during locomotion is equally important that gives amputees safe …
-
Simultaneous Multi-Joint Myoelectric Control of Transradial Prostheses
As the development of dexterous prosthetic hand and wrist units continues, there is a need for command interfaces that will enable a user to operate these multi-joint devices in a natural, coordinated manner. Commercially available myoelectric control algorithms are unintuitive, allow only a single …
-
The beauty of prostheses : designing for female amputees
… both explicit and latent needs, and design prostheses that are more appropriate for the female gender.
-
Electrochemical models for electrode behavior in retinal prostheses
The focus of this thesis is the modeling, characterization, and improvement of microfabricated electrodes for the Retinal Implant Project. The ultimate goal of the Project is to build a retinal prosthesis able to restore a limited degree of visual function in people suffering from certain types of …
-
Development of methodologies for the assessment of oral prostheses.
Besides medical and physiological consideration, the integrity of endodontic post/crown restorations are largely influenced by the components of the system adopted, namely the post, core material and cement. Currently there are numerous forms of posts, cements and core materials available on the …
-
The use of CAD CAM For Fixed Partial Prostheses
Due to the increasing demand from patients and dentists for highly aesthetic and strong, metal-free restorations there has been a rapid increase in research into dental CAD CAM technique and zirconia based restorations over the last decade. Such new technology has the potential to take the place of …
-
An analysis of choice: a case study on hip prostheses
… two aspects of choice between the alternative prostheses: how choices should be made, and what choices are actually made. On the former, a key indicator is the long-term prosthesis survival rate. However, when choosing between prostheses, there is often insufficient evidence on long-term …
-
A novel torsional spring design for knee prostheses and exoskeletons
… a novel torsion spring design for use in knee prostheses and exoskeletons is presented and analyzed. The planar spring design features an outer hub and an inner hub, which are connected by slender beams and store torsion energy in beam bending. The beams are fixed to the outer hub on one end …
-
Automatic damping profile optimization for computer controlled above-knee prostheses
Thesis. 1978. M.S.--Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
-
Reduction of friction in polymeric composites for artificial joint prostheses
… as the delamination wear of artificial knee prostheses. Delamination wear occurs mainly as the result of cyclic plastic deformation of the surface and subsurface layer which causes cracks to nucleate and propagate in the subsurface leading to the production of wear sheets. This research seeks …
-
Energy regeneration and its application to active above-knee prostheses
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1987.
-
Vibrational Feedback Training System for Use with SEMG Controlled Powered Prostheses
… some level of independence. Powered upper limb prostheses are often controlled by the user generating surface electromyographic (SEMG) signals. The goal of this thesis is to develop a virtual environment in which a user can control a virtual hand to safely grasp representations of everyday …
-
Bonding properties of innovative CAD-CAM composite biomaterials for dental prostheses
… way using partial bonded ceramic and composite prostheses. Recently the industry has developed various innovative composites materials to perform customized Computer-Aided Designed and Manufactured (CAD-CAM) dental prostheses. Two sub-classes of CAD-CAM composites can be distinguished in …
Page 1 of 11