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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 169 for “"Twisting"”.
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Twisting bordered Khovanov homology
We describe a bordered version of totally twisted Khovanov homology. We first twist Roberts's type D structure by adding a vertical type D structure which generalizes the vertical map in twisted tangle homology. One of the distinct advantages of our type D structure is that it is homotopy …
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Twisting Tales: a guide to fairytale adaptation
<p>“Twisting Tales” is a guidebook examining fairytales and the realm of fairytale adaptation. To begin with, I define fairytales by expanding on Tolkien’s essay “On Fairy Stories”. By defining fairytales as abstracted tales set in the realm of Faerie, adaptations of fairytales become an avenue in …
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Plastic resistance of thin-walled prismatic tubes under large twisting rotations
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000.
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"""Twisting the lion's tail"": The persistence of anglophobia in American politics, 1921-1948"
In 1918 anglophobia, which for most of the 19th century had been a standard feature of the cultural life of the United States, made a stunning reappearance in American political discourse. Anti-British invective, whether directed against the empire, the monarchy, the aristocracy, or even against …
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Closed-loop control of roll bending/twisting : a shape control system for beams
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1986.
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The Impact of a Dynamic Trunk Axial Twisting Task to Fatigue on Musculoskeletal Responses
… responses to a repetitive dynamic axial twisting exposure when performed to self-reported fatigue. Trunk/pelvis muscle activation & kinematics, self-reported transient pain, range of motion (ROM) tests, and a repetitive dynamic axial twisting exposure were collected on 13 female softball …
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Optimal distribution of the relaxation behavior of linear viscoelastic materials by the particle swarm optimization method applied to the problem of a twisting shaft
With rise of new manufacturing techniques such as additive manufacturing, there has been an increase in attention in designing components with distributed material properties. Utilizing the benefits of compliant mechanics, a strategic distribution of the relaxation behavior of linear viscoelastic …
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Simulations of Dynamic Relativistic Magnetospheres
… of external magnetic field lines. This twisting may be able to explain both magnetars' persistent hard X-ray emission and their energetic bursts and flares. Using the new code, I simulate the evolution of relativistic magnetospheres subjected to slow twisting through large angles. The …
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Hierarchical design of morphing shape-memory polymer structures via topology optimization
… first stage, basic unit structures including a twisting structure and a bending structure are designed using a topology optimization framework. A finite-element analysis incorporating the additive decomposition of small strains, is implemented to analyze and predict temperature-dependent …
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Knots Not for Naught
… where the Whitehead has no crossings and then twisting the torus 360 degrees in either direction an integral number of times. Let L(n) denote the knot obtained by twisting the torus 360 degrees, n times. Note that n is an integer. Let the twists be towards the center of the torus for positive n …
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Modeling of complex surface interactions in low and high pressure plasmas
… controlling reactive ion trajectories in plasma. Twisting and bowing are two main issues during high aspect ratio (HAR) fea-ture etching. Twisting is, instead of a feature etching vertically, the feature twists or turns to the side. Mixing damage by ion bombardment of underlying materials is also …
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Design and Characterization of Sectored (Patterned) IPMC Actuators for Propulsion and Maneuvering in Bio-Inspired Underwater Systems
… been fabricated for realizing bending and twisting motion, where the main application is for creating next-generation artificial fish-like propulsors that can mimic the undulatory, flapping, and complex motions of real fish fins. Not only can the sectored IPMCs be used for actuation, but …
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Polarization of certain conjugated systems
… central double bond. Symmetry requires that when twisting about such a bold, there must be a crossing of two low-lying states. At the one election level of theory, this leads to a degeneracy between the ground state and first excited state at 90°of twist. Slight perturbations to the twisted system …
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The elastic rigidities of ribbed plates
This thesis deals with the flexural and twisting rigidities of orthotropic plates. Asymmetrically stiffened plates are examples of technically orthotropic plates and are found in civil engineering structures such as bridges and ribbed floor slabs. The formulae for the rigidities as found in the …
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Fracture analysis in biomimetic Bouligand architectures
… of developing a significant amount of nested twisting microcracks without exhibiting catastrophic failure. The development and propagation of these microcracks may be a source of energy dissipation and stress relaxation that ultimately contributes to the remarkable damage tolerance properties …
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Surface Oxygen Chemistry on Some Isopoly and Heteropolyoxoanions (Polyoxoanion)
… Mo(,6)O(,18) ring inversion accompanied by twisting of the C(,6)H(,5)AsO(,3)('2-) subunit and twisting or flipping of the MoO(,4)('2-) subunit. Only weak (>2.2(ANGSTROM)) molybdenum-oxygen bonds are broken and reformed. The higher temperature process, although mechanistically undefined, …
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Topobo : a 3-D constructive assembly system with kinetic memory
… animate those forms by pushing, pulling, and twisting them, and observe the system repeatedly play back those motions. For example, a dog can be constructed and then taught to gesture and walk by twisting its body and legs. The dog will then repeat those movements and walk repeatedly. Our …
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Nonlinear flexural-flexural-torsional dynamics of metallic and composite beams
… vibration of metallic and composite beams. The twisting curvature is used to define a physical twisting variable which makes the equations of motion unique and independent of the rotation sequence of the Euler angles. A numerical-perturbation approach is used to analyze the response of metallic …
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Rhabdomerorganisation und –morphogenese im Komplexauge von Drosophila
… wird in der Fachliteratur als rhabdomere twisting bezeichnet und reduziert die Empfindlichkeit für polarisiertes Licht. Es wurde für das Drosophila-Auge gezeigt, dass diese strukturelle Asymmetrie der Sehzellen mit einer molekularen Asymmetrie in der Verteilung phosphotyrosinierter …
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