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 35 for “"SiZer"”.
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Evaluation of an Aerodynamic Particle Sizer With Certified Polydisperse Test Dusts
<p>The Aerodynamic Particle Sizer (APS) is a near real time laser particle sizer that counts and sizes particles in the range of 0.5 /xm to 3 0 /xm, which makes it ideal for measuring the particle size distribution of fly ash from coal combustion. While the APS has proven to be a valuable …
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Penalized spline modeling of the ex-vivo assays dose-response curves and the HIV-infected patients' bodyweight change
… second part of the dissertation extends the SiZer map, which is an exploratory and a powerful visualization tool, to detect underlying significant features (increase, decrease, or no change) of the curve at various smoothing levels. Here, Penalized Spline Significant Zero Crossings of …
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Illinois Alliance of Essential Schools: A Qualitative Case Study of an Urban High School's Planning Year
… of Essential Schooling established by Theodore Sizer and others. Coalition membership means that each school will eventually integrate the Common Principles in the manner best suited to its needs. The Coalition operates on the principle that effective reform must be a bottom-up, self-generated, …
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Effect of driving cycles on the particulate mass and number emissions from in-use heavy heavy-duty diesel vehicles
… the use of the Scanning Mobility Particle Sizer (SMPS) to measure particle size distributions. Regulated gaseous emissions and total particulate matter from the exhaust were sampled from a full-flow CVS dilution tunnel system. A mini-dilution system was dedicated specifically for particle …
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Impact and melting dynamics of micron-sized particles on a liquid pool
… The melting depth increases with particle sizer and particle impact velocity. The ratio of the cavity width to the penetration depth increases with the increase of particle impact velocity.</p>
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Caracterização experimental do escoamento bifásico horizontal de fluidos reofluidificantes
… measured with a high speed camera through Shadow Sizer technic. The velocity field of the liquid phase was measured using Particle Image Velocimetry (PIV). The fluids rheological properties where quantified using a rotational rheometer in the beginning and at the end of each experiment. In …
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Caracterização experimental da separação gás-líquido em uma junção do tipo T inclinada
… of Particle Image Velocimetry (PIV). A Shadow Sizer system and laser-based techniques were used to quantify the properties of the gas phase, such as bubble length and bubble velocity.
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The effects of secondary air injection on particulate matter emissions
… A TSI Model 3934 Scanning Mobility Particle Sizer (SMPS) was used to measure particle emissions at various engine operating conditions and secondary air rates. PM reductions were observed for the engine conditions and SAI flow rates that were tested. The maximum particle number reduction …
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Effects of oxygenated fuels on DI diesel combustion and emissions
… base diesel fuel. A scanning mobility particle sizer (SMPS) was used to evaluate changes in particle size distributions, in addition to gravimetric filter and oxides of nitrogen (NOx) measurements. Engine emissions tests were conducted using a Ricardo Hydra MK IV direct injection (DI) diesel …
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The mineralogy and chemistry of pulverised fuel ash produced by three South African coal-burning power stations
… station with a Malvern Instruments Particle Sizer. The major phases present in the ash are glass ( 45-75% ), mullite (16-39%) and quartz (1.5-16% ). The quartz concentration decreases in PF A from fields 1 to 4 in all the stations, and is positively correlated with the SiO₂ concentration. The …
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Volatility properties of the ambient and laboratory generated aerosol
… (TD) and a scanning mobility particle sizer at a sampling station in Reno, NV, USA during July-September 2017, December - February 2018, and June - July 2018. In addition to VBS, we estimated the volatility-based aerosol mixing state. Our observations show that aerosols were externally …
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Chemical and Physical Studies of Secondary Organic Aerosol Formed from Beta-pinene Photooxidation
… microbalance-scanning mobility particle sizer (TEOM-SMPS) method. Our results showed a correlation between the determined particle density and the particle chemical composition of the respective system. This demonstrates that changes in particle density can be indicative of the changes in …
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Automatic Particle Counting Using An Acoustic Transducer
… a commercially available aerodynamic particle sizer.
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Statistical Inverse Modelling of Aerosol Size Distributions
… is based on a differential mobility particle sizer. The temporal-evolution model of the size distribution is modelled by applying a combined finite element method to the aerosol general dynamic equation. We apply the discontinuous-Galerkin finite element method to the condensation, deposition, …
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Metal and Metalloid Contaminants in Atmospheric Aerosols from Mining Operations
… (TSP) collectors, a scanning mobility particle sizer (SMPS), and Dusttrak optical particle counters for an understanding of the fate and transport of atmospheric aerosols. One of the major findings from size-resolved chemical characterization at three mining sites showed that the majority of the …
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Particulate matter emissions from a DISI engine under cold-fast-idle conditions for ethanol-gasoline blends
… and combined with a Scanning Mobility Particle Sizer (SMPS) system, in order to measure the particulate matter number (PN) concentration 15 cm downstream from the exhaust valves of a DISI engine, for a temperature range between 0 and 40"C, under low load operation. Seven gasohol fuels have been …
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Locating and mapping cemeteries in Loudon County, Virginia
Protecting smaller family-type cemeteries is a difficult task in a rapidly growing area. This paper investigates that ways in which Loudoun County, Virginia addressed cemetery protection concerns. Cemetery locational data was captured from a variety of sources and integrated into the countys …
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Minor actinide waste disposal in deep geological boreholes
The purpose of this investigation was to evaluate a waste canister design suitable for the disposal of vitrified minor actinide waste in deep geological boreholes using conventional oil/gas/geothermal drilling technology. The nature of minor actinide waste was considered, paying particular …
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