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 19 of 19 for “"Initial transient"”.
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The initial transient behavior of a thermoelectric generator
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1960.
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Background Flow Influence on Impulsive Jet-Driven Micro Droplet Dispersal
… Simulations focusing on the near-field and initial transient period of the respiratory activity show that the orientation and magnitude of background flow influence the cloud formation characteristics of the droplet laden jet. The presence of non-zero background flow velocity in the axial …
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Probing Plasmon-Molecules Interactions with Surface-enhanced Raman Spectroscopy: Towards the Guided Design of Plasmonic Photocatalysts
… Our results reveal that following the initial transient energy deposition, there is a quick energy dissipation between the molecules through intermolecular interactions on the ultrafast timescale (within 30 ps). On the steady state, surprisingly, we observed a “plasmon refrigerator” …
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An Assessment of in-Service Stress Relaxation of a Work-Hardened Aluminum-Magnesium Alloy
… for stress relaxation, especially the initial transient process. However; with the special phenomenological expression in the plastic element, the Hart's type models are not suitable for simulating the deformation with bulk plastic flow. In order to predict the typical industrial …
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Aerothermodynamics and operation of turbine system under unsteady pulsating flow
… in Peak Torque and 20%pts out of 56%pts in Turbo Initial Transient based on cycle loss debit); (4) The condition of maximum power extraction on unsteady pulsating environment can be approximated with a simple modeling of volute storage effect. A physically consistent definition of ideal power that …
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Creep resistance of directionally solidified eutectic ceramics : experiments and model
… the eutectic in its growth direction exhibits an initial transient that is attributed to stress relaxation in the c-ZrO₂(Y₂0₃) phase, but otherwise in steady state shows many of the same characteristics of creep in sapphire single crystals with c-axis orientation. The creep strain rate of the …
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Analysis of the pressure-wall interaction at the release of a stop closure
… and opening of the vocal folds and during the initial transient phase of a stop consonant, when the cross-sectional area is small. Indirect means of measuring an unknown parameter in the pressure-wall interaction analysis is discussed with the aid of a closure model which derives the condition …
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Modeling the Non-equilibrium Phenomenon of Diffusion in Closed and Open Systems at an Atomistic Level Using Steepest-Entropy-Ascent Quantum Thermodynamics
… The SEAQT framework is also used to develop the transient and steady-state model for an open system in which oxygen diffuses through a tin anode. The two forms of the SEAQT equation of motion are used. The first, which only involves a dissipation term, is applied to the state evolution of the …
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Dynamic Properties of Chondrocytes
… The study revealed that chondrocytes exhibit an initial transient decrease in volume within the first few cycles, followed by a gradual return to the baseline (pre-loading) volume despite the surrounding cartilage tissue not fully recovering. This dynamic behavior suggests that chondrocytes …
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Experimental and theoretical investigation of constant rate of strain consolidation
… including, pore pressure measurement errors, initial transient conditions, and strain rate dependent soil behavior. There is also no set standard for the method of analysis to be used for interpretation of the CRS data. This experimental and theoretical study evaluates parameters that affect …
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Pharmacological characterisation of selective Y4 and dual Y2/Y4 receptor agonists: novel targets for putative anti-obesity therapies
… in Isc in both preparations compared with the transient response seen with their respective predecessors. Increasing the PEG size resulted in greater reductions in Isc, though a PEG22 modification resulted in a loss of functional activity. Mid to long chain lipidation of TM30339 (lauric acid …
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Atomistic modeling of crack tip behavior in ductile materials
… show that fatigue crack growth arrests after an initial transient period, reconciling reports of crack growth in atomistic simulations at loading amplitudes below experimental crack growth thresholds. It is also observed that sustained crack growth in vacuum only occurs when emitted dislocations …
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Effective Estimation of Marginal Quantiles in Steady-State Simulations
… to effects from the potential presence of an initial transient, substantial serial correlation in the simulation output process, and departures from normality, quantile estimation is adversely affected by additional issues ranging from the inherent bias of point estimators and the nature of …
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The action of magnesium upon stimulus-secretion coupling in the exocrine pancreas
… single pancreatic acini with CCK8 results in an initial transient increase in [Mg 2 ] throughout the entire cell which is followed by a sustained decrease in [Mg2+] which is more prominent around the basolateral membrane. III. Pertubations in extracellular and intracellular Mg2+ had marked …
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A time-spectral hybridizable discontinuous Galerkin method for periodic flow problems
… solution of a periodic flow state, bypasses initial transient behavior, and can often deliver substantial savings in computational cost compared to implicit time-marching. An important driver of computational efficiency is the ability to select and resolve only the most important frequencies …
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Efficient parallel simulations and their application to communication networks
… steady state conditions, an arbitrarily selected initial state is often used for each simulation run. This can result in significant bias in the simulation outcome. To reduce this initial transient bias, we propose a polling initialization technique, in which a pilot simulation is used to find …
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Computation of the rise or fall of a drop through a suspending liquid with no mass transfer: Axisymmetric, transitional and complex regimes
… for three of the larger drop sizes. Computed transient rise behavior is favorably compared to previous experimental and computational results. The second investigation of a buoyant drop is a three-dimensional computation using the VOF approach of nitrobenzene drops freely descending in water. …
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Time-resolved linear and non-linear rheology of thixotropic and aging complex fluids: Application to particulate and biopolymeric physical gels
… taking place in colloidal gels by comparing the transient evolution of orthogonal moduli with the parallel moduli immediately after cessa- tion of shear. However, probing transient evolution using the OSP technique can be chal- lenging for rapidly mutating complex materials which evolve on time …
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Flujos con superficies libres electrospray y generación de burbujas
… The numerical results show that, after an initial transient, the flow attains a cyclic regime where detachments and coalescences of bubbles follow a definite pattern. In the simplest case, all the detached bubbles have the same volume and rise at the same velocity. The volume of the bubbles …