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 70 for “"Scaling Law"”.
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Deriving and verifying a general granular locomotion scaling law
… locomotion system. A granular locomotion scaling law was developed, which instructs how to scale size, mass, and driving parameters in order to relate dynamic behaviors of different locomotors in the same granular media. For the development of this scaling relationship, a general wheel …
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Rotating convection driven by differential bottom heating and its application
… to the sink), so it was possible to find a scaling law relating H to the temperature difference across the tank ΔT and rotation rate f. The experimental result suggests that the meridional heat transport in the experiment was mostly due to geostrophic flows with a minor correction caused by …
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Study of the seismicity in the Western Alps by developing and applying an automatic earthquake detection and location Method
… background seismicity earthquakes follow the scaling law ... usually associated with self-similar earthquakes, whereas clustered earthquakes strongly deviate from this scaling law. Our observations show that the corner frequencies exhibit little dependency on the seismic moments, following a …
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Scaling laws and correlation functions near magnetic critical points
… magnetic systems are studied with the aid of the scaling laws. These laws relate the critical indices which describe the behavior of thermodynamic and correlation functions near T. Kadanoff's derivation of the scaling 1aw is reviewed. An experimental survey of ferromagnetic and antiferromagnetic …
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Monte Carlo computer simulation of sub-critical Lennard-Jones particles
… above and below the percolation threshold. Using scaling theory, the critical exponent, Ï , is determined from the cluster distributions. Deviation from the scaling law is evaluated using a modified scaling law that includes a surface term. It is found that the surface term is unnecessary in the …
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Physical experimentation and actuated wheel design for granular locomotion using Resistive Force Theory
… and cylindrical wheels were used to validate a scaling law determined from RFT. The 3D printed wheels were attached to an experimental test rig that consisted of a motor fixed to a carriage free to move horizontally and vertically. Data was gathered through a series of horizontal, vertical, and …
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Fracture and toughening of soft elastic composite
… of foams and the network of rubbery polymers, a scaling law for the fracture energy is proposed for soft elastic foams. A phase-field model for the fracture processes in soft elastic structures is further developed to study the crack propagation in an elastic foam, and results have all achieved …
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Experiments on turbulent flows in rough pipes: spectral scaling laws and the spectral link
… profile in a pipe flow, we establish new scaling laws for the turbulent energy spectra of pipe flows. These new scaling laws— an inner scaling law and an outer scaling law—differ from the scaling laws that were predicated on Townsend’s attached–eddy hypothesis in that they are proper …
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Experimental and Theoretical Studies of Friction and Adhesion of Elastomeric Materials
… Several nondimensional parameters and a scaling law are derived to characterize different interaction regimes between the beams and granular support. The findings from this work is believed to be helpful for improved understanding of interactions between elastic beams and surrounding …
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A MODEL OF THE BEAM-PLASMA DISCHARGE
… strong-beam-plasma instability is studied, and scaling laws of the discharge ignition are obtained for different configurations. The mechanism responsible for the discharge, i.e., the energization of plasma electrons by the plasma waves, is also studied. The model proposed here is consistent …
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Precision pipetting and crack-free colloidal assembly
… self-assembly from a needle is reported. A scaling law is derived that governs the rate of assembly, as well as a criterion for the initiation of cracks, thereby explaining how to build crack-free structures over a wide range of particle sizes.
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Specific heat of the order-disorder transition in beta-brass and its relation to the Ising Model
… The Cv results provide no verification of the ""scaling-law"" prediction a = a'. However, the Cp data do suggest the possibility of a' assuming its true critical behavior only ~ close to the critical temperature Tc. This could then explain why the a = a' equality has been so difficult to confirm …
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Overtrawlability and Mechanical Damage of Pipe-in-Pipe
… are developed and validated. The model test and scaling law are reviewed and improved.
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ADIABATIC CONDITIONS FOR FINANCIAL SYSTEMS
… of the smile. We show that, considering a scaling law derived from data, it is possible to get a new fitting procedure of the volatility smile that considers also the exponential decay of the real PDF of returns observed in the financial markets. In addiction, we show that this approach …
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Scaling laws for stress and energy for interface with strong rate-weakening friction
… chain model. Velocity weakening friction law is assumed between sliders and rigid surface. Both the statistical properties of slip, pulling force and average rupture stress are studied with varying the constitutive parameters characterizing the model: the stiffness ratio and strength of …
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Bending, Creasing, and Snapping of Soft, Slender Structures
… the snapping timescale. We also develop a simple scaling law that captures the dynamics of jumping toy poppers.
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Atomic-Scale Characterization of Nanometer-Sized Graphene
… are metallic and diverge from the Eg-L scaling law due to the presence of zigzag edge states which spatially decay into the graphene interior with a 1.0-1.2 nm decay length. In addition to graphene QDs, we study the electronic structure of graphene nanoribbons (GNRs) with 2-3 nm widths …
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Renormalization analysis of continuum models on fractal domains
… media which are specified by a fractional mass scaling law of the resolution length scale R. The focus is on pre-fractal media (i.e., those with lower and upper cut-offs) through renormalization analysis into continuum models, in which the fractal dimension D is also the order of fractional …
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3D-Printed, Internally Fed Electrospray Thruster
… current and flow rate following the well-known scaling law of electrospray in cone-jet mode. The thrust and specific impulse estimates showed that the device performance is comparable to state-of-the-art microfabricated internally fed electrospray thrusters.
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Crossing the Air-Water Interface: Inspiration from Nature
… mechanics of how animals leap out of water. A scaling law that balances the power of thrust and drag will predict the height of the jump. Finally, a bio-inspired robot was built to help identify physical conditions required to jump out of water.
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