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Showing 1 to 14 of 14 for “"Efficiency Curve"”.
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Monte Carlo simulations for the purpose of efficiency curve calibration for the Fastscan whole body counter
… of body types into consideration when creating efficiency curve calibrations. The goal of this work is the creation of a Monte Carlo (MCNP) model, that allows the simulation of efficiency curves for a diverse population of subjects. Models were created for both the Darlington and the Pickering …
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Link Stability Analysis of Wireless Sensor Networks Over the Ocean Surface
… linear prediction, which we refer to as efficiency curve. The significance of efficiency curve becomes evident when we decide upon the number of previous samples in the linear prediction model, and determine the extent to which the predictor forecasts the future. After efficiency curve, …
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Design and construction of a dynamometer
… Motor suppliers usually provide a torque, speed, efficiency curve, but it frequently lacks complete motor characterization and includes motor controller losses in the total system loss. The dynamometer presented in this thesis is primarily designed for testing of high efficiency motors and motor …
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Extended stormwater detention basin design for pollutant removal
… is used in conjunction with a pollutant settling efficiency-detention time curve to estimate the settling efficiency. This curve is generated from Storm Water Management Model (SWMM) simulations and shown to be independent of runoff statistics, pond configuration, and arbitrary but constant …
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Combustion lean limits fundamentals and their application to a SI hydrogen-enhanced engine concept
… benefits in terms of increased engine efficiency and reduced emissions. However, under high dilution levels, a lean limit is reached where combustion becomes unstable, significantly deteriorating drivability and engine efficiency, thus limiting the full potential of lean combustion. Due …
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Learning Reconfigurable Vision Models
… for learning a continuum of CNNs with varying efficiency characteristics. This enables us to characterize an entire Pareto accuracy-efficiency curve of models by training a single hypernetwork, dramatically reducing training costs. Then, we characterize a previously unidentified optimization …
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A High-Resolution Time-of-Flight Spectrometer for Fission Fragments and Ion Beams
… the order of 2 mm. We showed that the detection efficiency of the system for ions like He is less than 30 %. This is mainly due to the low number of the electrons liberated from the SE foil. In a setup consisting of two mirror MCP detectors, we could successfully observe the TOF spectrum of a …
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Aerosol Filtration And Separation
… an empirical model for predicting the loading curves for particles coated with liquids of different viscosity is proposed. For the second part, Inertial Separation, a cascade multistage axial cyclone which is capable of classifying particles from 10 μm to 40 nm is developed and evaluated. The …
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Evaluation of an Aerodynamic Particle Sizer With Certified Polydisperse Test Dusts
… objective was to develop an improved correction curve to allow the APS to give a more accurate mass particle size distribution and total mass concentration over the entire range of 0.5 /xm to 30 /xm.</p> <p>The experimental effort consisted of design and assembly of a bench-scale aerosol …
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Low head hydropower : a performance improvement study for Archimedes Screw turbines using mathematical modelling
… improvement was considered not only the nominal efficiency increase, but also the increase of the efficiency in relatively high and low flows and the exploitation of an extended range of flow and head, aiming in any case to maximize the produced electricity. The method used was the estimation of …
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A comparison of three computational phantoms for calibration of a radiation portal monitor used for measurement of internal contamination.
… This research investigated the counting efficiency of the Thermo PM12 personnel portal monitor for the measurement of internal contamination localized to the lungs. A counting efficiency curve was calculated by Monte Carlo analysis using Monte Carlo N Particle (MCNP) software. The …
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Structural design of shape-adaptive composite marine propellers
… the goal of shape-adaptability may be higher efficiency over a greater range of operating conditions, or reduced cavitation and noise. This shape-adaptability can be achieved through the choice of the appropriate blade geometry, and the optimum arrangement of composite materials. A design …
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A computational and experimental investigation into the performance of industrial refrigeration helical oil separators
… heat exchangers which leads to a reduction in efficiency of the system and increased operating costs. The Henry Technologies helical oil separator operates in refrigeration systems globally yet there is currently no available data on the performance of the unit. In this investigation the …
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Mass spectrometry of substituted benzils
… cause a broadening of the ionization efficiency curve for the parent-molecule ion; all other substituents have no effect on the curves' shape. Daughter ion ionization efficiency curves are broader than the parent-molecule i.e. curves, and the i.e. curves for the daughter ions from the …