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.
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Showing 1 to 20 of 23341 for “"Mechanical"”.
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Modelling mechanical systems
Education should be one of the highest priorities of any country. The ability to pass on knowledge and understanding effectively is a sign of a good educational system. From an engineering perspective, better teaching tools allow for greater understanding by the students making them better …
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Discrete mechanical metamaterials
Digital fabrication enables complex designs to be realized with improved speed, precision, and cost compared to manual techniques. Additive manufacturing, for example, is one of the leading methods for rapid prototyping and near net shape part production. Extension to full scale structures and …
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Role of Mechanical Stress, Excipients and Coprocessing On Tablet Mechanical Properties
… speed and powder co-processing on tablet mechanical properties. In the first chapter, the effect of compression speed on compressibility, tabletability, and compactibility profiles of various materials was explored. The advantage of utilizing a compactibility profile in reducing the effect …
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Information modeling in mechanical design: with application to cam mechanical design
Good engineering practice requires designers to incorporate knowledge, processes and skills to produce a superior product. Each stage of the product realization process requires that the designer utilize available resources to make sound engineering decisions in a timely manner. Much of the …
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Quantum Mechanical/Molecular Mechanical Studies of F1-ATPase and a Plant Photoreceptor
Submitted by Meng Tao (mengtao2@illinois.edu) on 2012-10-11T20:13:47Z No. of bitstreams: 1 Dittrich.pdf: 21387898 bytes, checksum: 3039bb041b2ef5c8c1f9213547feeea4 (MD5)
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Origami-inspired mechanical metamaterials
Origami-inspired mechanical metamaterials are recognised for their diverse property tuneability and controllable collapse behaviours, but their performances are often limited by the flat foldable unit cells. This thesis introduces a novel concept of heterogeneous origami-inspired mechanical …
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Transfer printed mechanical MEMS
Made available in DSpace on 2011-05-25T15:07:20Z (GMT). No. of bitstreams: 3 Elgan_Steven.pdf: 3972675 bytes, checksum: e746595b016ab92d64c7728e359f2850 (MD5) Elgan_Steven.docx: 6965133 bytes, checksum: c4d9e06e23d28cfc052ed6f47f19b479 (MD5) license.txt: 4060 bytes, checksum: …
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Mechanical structures interactive laboratory
The Mechanical Structures Interactive Lab is one of a number of new remotely accessible WebLabs being developed at the Massachusetts Institute of Technology. WebLabs allow students access to physical experiments from anywhere at anytime via the World Wide Web. While these cannot replace …
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Quantum Mechanical/molecular Mechanical Studies of F(1)-Atpase and a Plant Photoreceptor
The plant blue-light receptors of the phot family mediate plant phototropism and contain two light, oxygen, and voltage (LOV) sensitive domains as photoactive elements. We have performed QM/MM simulations of the photocycle of a complete Phot-LOV1 domain from C. reinhardtii. We have investigated the …
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Production of strengthened copper materials by Mechanical Milling-Mechanical Alloying and Spark Plasma Sintering
… conductivities. In this PhD thesis initially mechanical milling (MM) has been considered as suited strengthening technique due to the severe strain hardening and microstructural refinement induced by severe plastic deformation during the process. Then an enhanced hardening has been obtained by …
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Vascular and Mechanical Changes in Bone in Response to Chronic Ischemia and Mechanical Loading
… paper will examine the effects of ischemia and mechanical stimulation on bone remodeling. An immunohistochemistry protocol for vessel marking in bone was also developed. Ischemia was induced in a mouse model to determine vascular and mechanical property changes in bone in response to hypoxia, …
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Mechanical characterization of carbon nanosheets
… force microscope has been used to study the mechanical properties of carbon nanosheets. The elastic behavior was investigated by analyzing the pressure-deflection relationship in the bulge test. Youngs moduli of carbon nanosheets as a function of irradiation electron doses can be determined. …
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Mechanical loading and cartilage physiology
Whilst mechanical impact is known to be essential for cartilage maintenance, it has been noted that altered joint loading and increased force may lead to cartilage degradation and increase the risk for the development of osteoarthritis (OA). This study investigated the cellular responses of …
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Mechanical behavior of nonwoven felts
… the localization of damage in a wide band. The mechanical behavior of the non-woven felt until final fracture was modeled by the finite element simulation of a 2D random network in which the geometric characteristics of the network and the constituent properties were obtained from experiments on …
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Mechanical properties of arterial wall
… which factors trigger restenosis. However, few mechanical data are available on human arteries because of the difficulty of testing artery samples often obtained from autopsy while arteries are still considered "fresh". Various solutions mimicking the physiological environment have been used to …
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Stochastic Averaging for Mechanical Systems
Two mechanical systems are studied in this thesis. One is a model for the motion of water waves and the other is an autoparametric oscillator. These systems are studied when driven by stochastic forcing. The analysis presented is based on the theory of stochastic averaging. This theory provides a …
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Complex Mechanical Properties of Steel
… impossible to calculate all but the simplest of mechanical properties given a comprehensive description of the structure at all conceivable scales. Properties which are important but fall into this category are impact toughness, fatigue, creep and combinations of these phenomena. The work …
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