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Dissertations / Theses on the topic 'Quality of surface'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 May 2022

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1

Odeh, Rabah Y. "Simulation and forecasting of surface water quality." Ohio : Ohio University, 1992. http://www.ohiolink.edu/etd/view.cgi?ohiou1172865698.

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2

Braga, Maria Cristina Borba. "Surface water quality modelling of mercury contamination." Thesis, Imperial College London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396307.

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3

Bridge, Christopher James. "Trihalomethane management in poorer quality surface waters." Thesis, University of Birmingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.422767.

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4

Song, Junfeng. "Surface and topography metrology in firearm evidence identification and engineering surface quality control." Thesis, University of Warwick, 2017. http://wrap.warwick.ac.uk/93631/.

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This thesis is a topical review on the application of Surface and Topography Metrology in Firearm Evidence Identification and Engineering Surface Quality Control. It summarizes my research work at the National Institute of Standards and Technology (NIST) from 1987 to present, where I’m a Project Lead for the Forensic Topography and Surface Metrology since 1997. I started my research in surface metrology since 1982 -- after my MS study at the Harbin Institute of Technology (HIT, Harbin, China) from 1978 to 1981. In 1985, I designed, manufactured and patented the Precision Random Profile Roughne

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5

So, Yin Ching. "A series of surface fitting strategies for procedure optimization in reconstructing high quality surfaces /." access full-text access abstract and table of contents, 2005. http://libweb.cityu.edu.hk/cgi-bin/ezdb/thesis.pl?mphil-meem-b19885945a.pdf.

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Thesis (M.Phil.)--City University of Hong Kong, 2005.<br>"Submitted to Department of Manufacturing Engineering and Engineering Management in partial fulfillment of the requirements for the degree of Master of Philosophy" Includes bibliographical references (leaves 123-125)

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6

Wong, Darrell. "Particleboard simulation model to improve machined surface quality." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/247.

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Particleboard (PB) is a widely used panel material because of its physical properties and low cost. Unfortunately, cutting can degrade its surface creating rejects and increasing manufacturing costs. A major challenge is PB’s internal variability. Different particle and glue bond strength combinations can sometimes create high quality surfaces in one area and defects such as edge chipping in nearby areas. This research examines methods of improving surface quality by examining PB characteristics and their interactions with the cutting tool. It also develops an analytical model and softwar

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7

Walls, Liam D. "Quantifying road surface quality for underground haul roads /." [St. Lucia, Qld.], 2006. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19802.pdf.

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8

Zachrisson, Mikael. "High Quality Shadows for Real-time Surface Visualization." Thesis, Linköpings universitet, Medie- och Informationsteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-133214.

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This thesis describes the implementation of a shadowing system able to produce hard shadows. Shadow mapping is the most common real-time shadowing algorithm but it suffers from severe aliasing artifacts and self-shadowing effects. Different advanced techniques based on Shadow Mapping are implemented in this thesis with the objective of creating accurate hard shadows. First, an implementation based on Cascaded Shadow Maps is presented. This technique improves the visual quality of shadow mapping by using multiple smaller shadow maps instead of a large one. The technique addresses the fact that

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9

Kwong, Pui-ki. "Surface water quality indicators in China and their implications for sustainability." Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B36618718.

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10

Dumrichob, Swaros. "Relationships between impervious surfaces and surface water quality in Hunnicutt Creek watershed, Clemson, South Carolina." Connect to this title online, 2009. http://etd.lib.clemson.edu/documents/1256570373/.

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11

Elbag, Mark A. "Impact of surrounding land uses on surface water quality." Link to electronic thesis, 2006. http://www.wpi.edu/Pubs/ETD/Available/etd-050306-155834/.

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Thesis (M.S.)--Worcester Polytechnic Institute.<br>Keywords: Conductivity, pH, Dissolved Oxygen, UV absorbance, Source Water, Surface Water, Dissolved Organic Carbon, Total Organic Carbon, Particle Counts, Turbidity, E. coli, Fecal Coliforms, West Boylston Brook, Wachusett Reservoir, source water protection, surface water protection Includes bibliographical references (p.73-77).

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12

Elbag, Jr Mark A. "Impact of Surrounding Land Uses on Surface Water Quality." Digital WPI, 2006. https://digitalcommons.wpi.edu/etd-theses/665.

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Source water protection is important to maintain public health by keeping harmful pathogens out of drinking water. Non-point source pollution is often times a major contributor of pollution to surface waters, and this form of pollution can be difficult to quantify. This study examined physical, chemical, and microbiological water quality parameters that may indicate pollution and may help to identify sources of pollution. These included measures of organic matter, particles, and indicator organisms (fecal coliforms and E. coli). The parameters were quantified in the West Boylston Brook, wh

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13

Pierson, Sarah Tyson. "Surface Runoff Quality in Grasslands Fertilized with Broiler Litter." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/37547.

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Surface application of broiler litter to grasslands can increase concentrations of ammonium (NH₄+-N) and dissolved reactive phosphorus (DRP) in surface runoff. It is not known, however, for how long after broiler litter applications that NH₄+-N and DRP concentrations remain elevated. Five 0.75-ha, fescue-bermudagrass paddlocks received four broiler litter applications in 1995 and 1996, and only inorganic fertilizer N in 1997 and 1998. Runoff from each paddock was measured, sampled, and analyzed for NH₄+-N and DRP. Flow-weighted NH₄+-N and DRP concentrations increased from background values of

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14

Kirby, Laura Rebecca. "Surface Water Impacts from Active Underground Mining." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/23290.

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High extraction mining techniques have produced the need to mitigate and understand ground movements associated with this technology. Tools such as the Surface Deformation Prediction System (SDPS) facilitate sound scientific decision making in the industry and has continually improved since its inception in 1987. The capabilities of SDPS have expanded on an as-needed basis. Currently, the regulatory climate has emphasized the need to understand the impact of underground mining on surface waters, physically and chemically.<br /><br />The SDPS program is used to conduct an analysis of ground

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15

Lacson, Ernani Morena Morgan Harold R. "Total Quality Leadership as it applies to the Surface Navy." Monterey, California : Naval Postgraduate School, 1990. http://handle.dtic.mil/100.2/ADA243195.

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Thesis (M.S. in Management)--Naval Postgraduate School, December 1990.<br>Thesis Advisor(s): Crawford, Alice ; Roberts, Benjamin. "December 1990." Description based on title screen as viewed on March 31, 2010. DTIC Identifier(s): Leadership Training, Management Planning And Control, Officer Personnel, Naval Personnel, Naval Warfare, Quality Control, TQM (Total Quality Management), Quality Management, TQM, Total Quality Management, Theses. Author(s) subject terms: Total Quality Leadership, Leadership, Management and Education Training, Command Excellence Program. Includes bibliographical refere

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16

McMahon, Jeff. "Modelling coating on the surface of paper for quality assurance." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0015/MQ48582.pdf.

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17

Lindberg, Johanna. "Swedish environmental quality criteria : the challenge of classifying surface waters /." Uppsala : Sveriges lantbruksuniv, 2001. http://info1.ma.slu.se/IMA/Publikationer/internserie/2001-11.pdf.

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18

Ackerman, Mattheus Johannes. "Steel slab surface quality prediction using neural networks / M.J. Ackerman." Thesis, North-West University, 2003. http://hdl.handle.net/10394/382.

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Columbus Stainless grinds the majority of the steel slabs that are produced to improve the surface quality. However, the surface quality of some slabs is good enough not to be ground. If a reliable method can be found to identify these slabs, the production costs associated with grinding can be saved. Initially slabs were selected manually based on knowledge of the process parameters that affect the steel surface quality. This was not successful and may have been due to the interaction between variables and non-linear effects that were not taken into account. A neural network approach was ther

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19

Lacson, Ernani Morena, and Harold R. Jr Morgan. "Total Quality Leadership as it applies to the Surface Navy." Thesis, Monterey, California: Naval Postgraduate School, 1990. http://hdl.handle.net/10945/27618.

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Approved for public release; distribution is unlimited.<br>The implementation of Total Quality Leadership (TQL) into the Surface Warfare Navy requires specific leadership training for the entire community. A training needs analysis was conducted to examine these training requirements for Surface Warfare Officers. First, personnel who are already using TQL at different Navy facilities were interviewed to determine the areas where TQL principles are applicable in the Surface Navy. Next, the Officer Survey Instrument (OSI) data base provided the information to determine the leadership competencie

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20

Benati, Fabrizio. "Effect of surface topography upon the quality of autobody panels." Thesis, Brunel University, 2003. http://bura.brunel.ac.uk/handle/2438/7404.

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Improvements in the quality of the autobody panels can lead the automotive industry to large savings, where metal scrap levels always exceed 50%, and global losses are running into millions of pounds per annum. The production of new tooling also runs into the order of millions of pounds, often taking many weeks of trials to achieve the correct profiles and clearances. It is therefore important to identify the correct material to use in term of substrate mechanical properties and surface topography and coating type) in order to achieve better quality and minimise manufacturing costs. The most u

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21

Moore, Sara. "An Investigation of How Surface Coal Mining Affects Water Quality." Digital Commons @ East Tennessee State University, 2010. https://dc.etsu.edu/honors/5.

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Surface coal mining has become the ideal method for extracting coal from the Appalachia Mountains. However, surface coal mining generates large amounts of waste which may decrease the water quality in central Appalachia. This research is an attempt to determine whether surface coal mining negatively impacts water quality. This research consists of a literature review in addition to an analysis of data obtained through the Virginia Department of Environmental Quality. This data was analyzed at three separate locations along the Clinch River, VA to determine trends and cycles in pH, temperature,

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22

Brugés, Javier Mauricio. "Surface characterization methods for quality assessment of polyethylene-coated paperboard." Licentiate thesis, Mittuniversitetet, Institutionen för elektronikkonstruktion, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-41710.

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In manufacturing processes, the quality of a product often depends on its surface, and careful control of surface properties is critical to meet customer requirements. A thin layer of polyethylene (PE) is applied to paperboard to increase barrier functionality and high optical quality of the product. For PE-coated paperboard, product quality inspection is performed at the end of the manufacturing process by taking a portion of the reel to the laboratory for quality inspection. These associated offline characterization methods are destructive and time consuming and are representative of only a

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23

Kwong, Pui-ki, and 鄺沛琪. "Surface water quality indicators in China and their implications for sustainability." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B36618718.

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24

Smith, Hurtford. "Improving the Quality of Terrain Measurement." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/32332.

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The emergence of high-fidelity vehicle and tire models has raised the requirements for terrain measurement capabilities. Inaccuracies that were once tolerable for measurement of general terrain roughness are no longer acceptable for these new applications. The techniques in this work seek to improve the quality of terrain measurement in addition to providing an objective way to describe the accuracy of these measurements. The first portion of this work develops an accuracy verification procedure for terrain measurement systems. This procedure involves a static test to assess the limitation

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25

Roberts, Shawn Conrad. "Surface/groundwater interactions in the Lincolnshire limestone aquifer." Thesis, University College London (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313820.

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26

Allard, Nicolas. "Consequences of Machining on Roughness and Functions of Cylinder liners surfaces." Thesis, Halmstad University, School of Business and Engineering (SET), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-911.

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<p>The cylinder liners’ surface is really important in an engine because it corresponds with piston rings to a tribologic system indispensable to know for reasons of wear, of oil consumption and engine’s life time. For these reasons, it is important to measure and characterize these surfaces.</p><p>The first part of the project is the observation of the impact of the number of strokes of the plateau honing on the surface of the cylinder liners. It is interesting to observe the impact of the variation of the number of strokes of the plateau honing on the peaks, plateaus and valleys of the surfa

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27

Gaceb, Mohamed. "An investigation of microcrack formation on machined surfaces." Thesis, Sheffield Hallam University, 1985. http://shura.shu.ac.uk/20604/.

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In recent times a number of workers have pointed out the importance of microcrack formation to the machining process and to surface integrity requirements of machined components. Microcracks have been identified within the shear zone and their presence used to explain some aspects of the chip formation process. It is clear that microcracks represent a major feature in the shear zone in machining, particularily when the workpiece is a two-phase material. The presence of microcracks in the machined surface was reported some fifteen years ago and confirmed recently. A preliminary study carried ou

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28

Sweet, Audrey. "BUFFERS AND BIOCHAR: INFLUENCES ON SURFACE WATER QUALITY IN AGRICULTURAL SYSTEMS." OpenSIUC, 2015. https://opensiuc.lib.siu.edu/theses/1633.

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Agricultural runoff is a major non-point source pollutant in the Midwest and has been documented as a significant contributor to nutrient loads in the Mississippi River and subsequent hypoxic conditions in the Gulf of Mexico. In an attempt to minimize eutrophication, researchers have been collaborating with farmers to improve best management practices targeting nutrient retention. Over the past four decades riparian buffers have proven effective in retaining nutrients and sediment from agricultural runoff. We hypothesize that the addition of biochar to vegetated buffers can further improve nut

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29

Lathouri, Maria. "Assessment of the temporal variability of surface water quality parameters in setting environmental quality standards for metals." Thesis, Imperial College London, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.550232.

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Metals, such as copper, zinc, cadmium, nickel and lead, can vary significantly in concentration over time and across small specified areas at the micro scale (geographic regions), either naturally or also due to human activities, such as urbanization, industrial and agricultural activities. Their chemical forms and distribution control their mobility, bioavailability and subsequent potential for toxicity which, in turn, dictates surface water quality. The physicochemical forms in which a metal ion is present (i.e. its speciation) determine the behaviour of the metal and therefore its bioavaila

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30

Black, Eugene H. "Total Quality Leadership knowledge, skills, and abilities for surface warfare officers." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1994. http://handle.dtic.mil/100.2/ADA280486.

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Thesis (M.S. in Management) Naval Postgraduate School, March 1994.<br>Thesis advisor(s): L.inda E. Wargo, Benjamin J. Roberts. "March 1994." Includes bibliographical references. Also available online.

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31

Ontkean, Gerald R. "Agricultural impacts on surface water quality in the Crowfoot Creek watershed." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0010/MQ59859.pdf.

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32

Bain, Joseph David. "Thermomechanical Hot Tool Cutting and Surface Quality in Robotic Foam Sculpting." Thesis, University of Canterbury. Mechanical Engineering, 2011. http://hdl.handle.net/10092/6258.

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For several years, research work has been carried out at the University of Canterbury aimed at the development of a rapid prototyping and manufacturing process referred to as Robotic Foam Sculpting (RFS). This system uses a six-axis industrial robot and electrically-heated hot-wire and hot-blade tools to sculpt desired parts from blocks of polystyrene foam. The vision for this system is that it will be able to rapidly create large volume foam models at low cost, for a range of potential applications. Parts produced by the RFS system can potentially be used as investment casting patterns, cores

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33

Way, L. D. "Cleanness and castability effects on the surface quality of formable steels." Thesis, Swansea University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.639366.

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Increased demand for high quality formable sheet steel for exposed applications has led to global adoption of the formable interstitial free (IF) steels. However, these steels are susceptible to unsightly surface line defects. The aim of the present study was to improve current understanding of the origins of typical line defects in IF steels so suitable cost-effective countermeasures can be derived. Uncoated, cold rolled steel were found to contain aluminium/complex oxide based line defects. These features were shown to originate by entrapment on non-metallic inclusions (NMIs) in steel slabs

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34

Maycock, Keith Michael. "The assessment of surface quality in planed and spindle moulded products." Thesis, De Montfort University, 1993. http://hdl.handle.net/2086/4088.

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35

Maşek, Tudor. "A response surface model of the air quality impacts of aviation." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/62969.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2008.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 95-102).<br>Aviation demand is expected to double in the coming decades, and there are growing concerns about its impacts on the environment. Governments seek to mitigate the impacts of aviation on climate, air quality, and noise by setting various emissions and noise regulations. However, there are complex interactions among these three impact pathways which must be carefully considered. The FAA is developing an

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36

Cook, Nicholas Alexander. "Surface Water Quality and Aquatic Ecological Health in Central Appalachian Streams." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/56603.

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The Central Appalachian region is home to several resource-extraction industries, a host of globally unique aquatic wildlife species, and region-wide poverty. These overlapping circumstances make solving environmental issues in the region challenging. Of particular focus is the coal mining industry, both because of its prevalence and because of controversial methods of practice such as mountain top mining. One of the primary concerns in the region is the extirpation of sensitive aquatic macroinvertebrate species. Several studies have suggested the primary driver of this loss of biodiversity is

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37

Saleem, Saud. "On the surface quality of continuously cast steels and phosphor bronzes." Doctoral thesis, KTH, Metallernas gjutning, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-187718.

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This thesis work concerns about the importance of the cast surfaces, surface phenomenon such as the formation of the oscillation marks and exudation and related defects including cracks and segregation that happened during the continuous casting. All of the investigated materials were collected during the plant trials while an in-depth analysis on these materials was performed at the laboratory scale with certain explanations supported by the schematic and theoretical models. The work consists on different material classes such as steels and phosphor bronzes with a focus on the surface defects

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38

de, Zoysa A. Damitha N. "A Benefit Evaluation of Programs to Enhance Groundwater Quality, Surface Water Quality and Wetland Habitat in Northwest Ohio." Connect to resource, 1995. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1218840658.

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39

Dowey, Stephen James. "Advanced on-line and off-line process control for surface-engineered applications." Thesis, University of Hull, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310319.

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40

Malone, Patrick R. "Identifying and Managing Impacts of Point and Non-Point Source Pollution on Surface Water Quality." Digital WPI, 2015. https://digitalcommons.wpi.edu/etd-theses/513.

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Surface waters can be impacted by point and non-point source (NPS) pollution including stormwater culverts, runoff, and septic systems. It is important to develop water quality monitoring plans that can be implemented within resource constraints while still providing useful data. The goal of this research was to develop a sampling strategy to identify the impacts of point and NPS pollution on surface waters. This research incorporates water quality monitoring, land use data, precipitation data, and statistical modeling to improve understanding of pollutant impacts on surface waters. Research w

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41

Man, Gabriel. "Towards all-polymer surface acoustic wave chemical sensors for air quality monitoring." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/17469.

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Volatile organic compounds (VOCs) are a precursor to the formation of ground-level ozone and airborne particulate matter, both of which are hazardous to human health. Currently in Canada, other air pollutants such as ozone and nitrous oxides are measured by an air quality monitoring network in real-time, while VOCs are collected in canisters and sent to a central laboratory for analysis. This is a time-consuming and non real-time method, and due to the spatial variability of air pollution, many points of measurement are needed. A distributed point sensor network could address the resolution

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42

Botsch, Mario. "High quality surface generation and efficient multiresolution editing based on triangle meshes /." Aachen : Shaker, 2005. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=014643805&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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43

Bonte-Gelok, Shelly N. "Interpretation of historical surface water quality data in Huron County, Ontario, Canada." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ61876.pdf.

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44

Kang, J. "Influences of surface quality on the rolling contact fatique behaviour of ceramics." Thesis, Bournemouth University, 2001. http://eprints.bournemouth.ac.uk/309/.

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A novel eccentric lapping machine was designed by the author and manufactured in-house, to serve as a test bench to investigate the finishing process parameters in relation to surface quality, as well as the feasibility of accelerating the finishing process of HIPed silicon nitride balls. The kinematics of the eccentric lapping were analysed and discussed. Taguchi Methods were used to optimise the finishing parameters to achieve maximum material removal rate in lapping and to achieve minimum surface roughness value Ra in polishing. Two kinds of HIPed silicon nitride ball blanks were finished b

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45

Majedi, Behrang. "Robotic machining evaluation of the positioning accuracy and the machined surface quality." Mémoire, École de technologie supérieure, 2014. http://espace.etsmtl.ca/1289/1/MAJEDI_Behrang.pdf.

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En raison de l’importance de la qualité de surface des pièces usinées, de nombreuses recherches ont été consacrées aux irrégularités de surface et à leurs mécanismes générateurs. Cependant,la qualité de surface des opérations d’usinage robotisées n’a pas été suffisamment étudiée. En effet, les travaux relatifs sont limités aux opérations de finition telles que le meulage et l’ébavurage. Dans ce travaille de recherche, la qualité de surface d’usinage de rainures est étudiée. les rainures sont usinées par le robot industriel sur un bloc d’aluminium. A cet effet, plusieurs rainures dans différent

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46

Potts, Elizabeth Ann. "Surface-active invertebrates of derelict land as bio-indicators of habitat quality." Thesis, Manchester Metropolitan University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.392836.

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47

Asadollah-Fardi, Gholamreza. "A mathematical and experimental study on the surface water quality in Tehran." Thesis, University of London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312476.

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48

Andrews, Jeffrey Adam. "Soil productivity model to assess forest site quality on reclaimed surface mines." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-09052009-040211/.

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49

Lu, Shirley Suet-Ning. "Improving surface quality of SLA 3D printed parts via controlled dip-coating." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/119948.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (page 35).<br>3D printing is useful for rapid prototyping, and is quickly becoming an option to aid in mass manufacturing, whether to make low-volume molds for injection molding and thermoforming or to make unique fixtures. 3D printing via stereo lithographic apparatus (SLA) builds parts by curing photopolymer resins layer by layer. SLA 3D printing is often chosen for its relatively high quality surface finish. However,

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50

Amat, Luis R. Jr. "A realtime internet based quality control application for hurricane surface wind observations." FIU Digital Commons, 1998. http://digitalcommons.fiu.edu/etd/1275.

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This thesis chronicles the design and implementation of a Intemet/Intranet and database based application for the quality control of hurricane surface wind observations. A quality control session consists of selecting desired observation types to be viewed and determining a storm track based time window for viewing the data. All observations of the selected types are then plotted in a storm relative view for the chosen time window and geography is positioned for the storm-center time about which an objective analysis can be performed. Users then make decisions about data validity through visua

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