Academic literature on the topic 'Field Representative Lab Testing'

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Journal articles on the topic "Field Representative Lab Testing"

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Moreno-Gómez, Mara, Rubén Bueno-Marí, B. Thomas Carr, Gary R. Bowman, Genevieve W. Faherty, Carlota Gobbi, Julie M. Palm, Petra Van Sloun, and Miguel Ángel Miranda. "Two New Alternatives to the Conventional Arm-in-Cage Test for Assessing Topical Repellents." Journal of Medical Entomology 58, no. 4 (March 26, 2021): 1826–38. http://dx.doi.org/10.1093/jme/tjab050.

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Abstract European guidelines for testing attractant and repellent efficacy (i.e., Product type 19 [PT19]) have been in revision since 2017. A key topic of discussion is the current approach to evaluating topical repellents. The European Chemical Agency has stated field testing should be avoided because of mosquito-borne disease risks. However, the most common laboratory method, the arm-in-cage (AIC) test, may limit the reliable extrapolation of lab results to field conditions. This study’s main goal was to assess alternative laboratory methods for evaluating topical mosquito repellents that use mosquito landing rates more representative of those in the field. The study took place at three European testing labs using 30 study participants per test and the mosquito, Aedes albopictus (Skuse, 1894, Diptera: Culicidae). In phase 1, a conventional AIC test and a sleeved AIC test were performed. Respectively, the arm area exposed was 600 and 100 cm2, and cage volume was 0.040 and 0.064 m3. Mosquito density was the same for both: 1 female/840 cm3. In phase 2, room-based testing (40 ± 5 mosquitoes in 25–30 m3) was used as a proxy for field testing. The mosquito repellent employed was 15% N,N-diethyl-m-toluamide in ethanol at two doses: 1 and 0.5 g/600 cm2. The protection times measured at each laboratory were analyzed both separately and together using nonparametric (Kruskal–Wallis) test. The two alternatives methods showed to be potential alternatives to the current AIC method recreated field mosquito landing rates and achieved reproducible protection times across laboratories.
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D’Agostino, F., F. Ferrara, C. Gennarelli, R. Guerriero, and M. Migliozzi. "Experimental Testing on an Effective Technique to Reconstruct the Far- Field Pattern of a Long Antenna from Near-Field Measurements Acquired via Spherical Spiral Scan." Open Electrical & Electronic Engineering Journal 8, no. 1 (February 21, 2014): 1–9. http://dx.doi.org/10.2174/1874129001408010001.

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In this paper, the experimental validation of a fast and accurate near-field – far-field (NF–FF) transformation with spherical spiral scanning for elongated antennas is provided. Such a transformation relies on a nonredundant sampling representation of the voltage measured by the probe, obtained by using the unified theory of spiral scans for nonspherical antennas and adopting a cylinder ended in two half-spheres to model long antennas. It allows a remarkable reduction of the measurement time due to the use of continuous and synchronized movements of the positioning systems and to the reduced number of needed NF measurements. In fact, the NF data required by the classical spherical NF–FF transformation are efficiently and accurately recovered from those collected along the spiral, by using an optimal sampling interpolation expansion. Experimental results, obtained at the Antenna Characterization Lab of the University of Salerno and assessing the effectiveness of such a NF–FF transformation, are shown.
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Brown, Grace E., and Salman R. Khetani. "Microfabrication of liver and heart tissues for drug development." Philosophical Transactions of the Royal Society B: Biological Sciences 373, no. 1750 (May 21, 2018): 20170225. http://dx.doi.org/10.1098/rstb.2017.0225.

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Drug-induced liver- and cardiotoxicity remain among the leading causes of preclinical and clinical drug attrition, marketplace drug withdrawals and black-box warnings on marketed drugs. Unfortunately, animal testing has proven to be insufficient for accurately predicting drug-induced liver- and cardiotoxicity across many drug classes, likely due to significant differences in tissue functions across species. Thus, the field of in vitro human tissue engineering has gained increasing importance over the last 10 years. Technologies such as protein micropatterning, microfluidics, three-dimensional scaffolds and bioprinting have revolutionized in vitro platforms as well as increased the long-term phenotypic stability of both primary cells and stem cell-derived differentiated cells. Here, we discuss advances in engineering approaches for constructing in vitro human liver and heart models with utility for drug development. Design features and validation data of representative models are presented to highlight major trends followed by the discussion of pending issues. Overall, bioengineered liver and heart models have significantly advanced our understanding of organ function and injury, which will prove useful for mitigating the risk of drug-induced organ toxicity to human patients, reducing animal usage for preclinical drug testing, aiding in the discovery of novel therapeutics against human diseases, and ultimately for applications in regenerative medicine. This article is part of the theme issue ‘Designer human tissue: coming to a lab near you’.
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Assane, Mariamo, Debby Basu, Kenneth Landgraft, Isabel Pinto, Noorbebi Adamo, Admiro Macave, Augusto Nhabomba, and Octavia Benzane. "Training of Super Users Contributes to Productivity in Molecular Biology Laboratories in Mozambique." American Journal of Clinical Pathology 152, Supplement_1 (September 11, 2019): S101. http://dx.doi.org/10.1093/ajcp/aqz119.005.

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Abstract HIV viral suppression through antiretroviral (ARV) treatment has public health benefits in potentially reducing the risk of subsequent HIV transmissions. Mozambique has adopted the World Health Organization (WHO) “Test and Start” strategy, which assumes that all people who test positive for HIV start ARV treatment immediately. In order that treatment is guided by the respective HIV viral load (VL) test results, the MOH expanded the network of VL testing laboratories. About 26 VL testing instruments are now operational in the country. Although the increase in testing platforms increased VL tests performed, problems associated with errors, failures in user maintenance, and equipment malfunctions occur frequently. Delays in resolving equipment malfunctions contributed to lower laboratory productivity in certain periods of 2018. Therefore, the MOH, in coordination with the American Society for Clinical Pathology (ASCP) and VL testing instrument manufacturers, provided targeted training for VL laboratory Super Users (SUs). The SUs are primarily composed of laboratory technicians representing all VL laboratories. Training focused on equipment maintenance, software configuration, and troubleshooting the most common instrument-related problems and errors. Following this training, the SUs worked as in-laboratory equipment supervisors, helping laboratory staff to better perform equipment maintenance procedures. Furthermore, they worked remotely with representatives and field technicians of the instrument manufacturers to resolve small problems, such as accessory replacement and adding new users to the systems, in their own laboratories. This has led to a reduction in the overall time to equipment repair, less reliance on external field technicians, and correspondingly increased overall lab productivity and workforce capacity building for VL laboratory SU.
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Stavropoulou, Eleni, and Lyesse Laloui. "Insights into the interaction of a shale with CO2." Solid Earth 13, no. 12 (December 5, 2022): 1823–41. http://dx.doi.org/10.5194/se-13-1823-2022.

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Abstract. Caprock formations, such as shales, play a key role in safe underground CO2 storage since they serve as a hydromechanical barrier that prevents migration of the injected CO2 to the surface. While their hydromechanical response is important to ensure their sealing capacity, interaction with the injected CO2 involves additional thermo–hydro–chemo–mechanical (THCM) phenomena that may threaten the long-term integrity of the caprock. The low-transport properties of shales make them a suitable caprock material, but at the same time challenging to study due to the very long timescales (months/years) that are required for the various THCM processes to manifest. In this work, the long-term multiphysical interaction of the Opalinus Clay shale with liquid and supercritical CO2 is studied in 3D with live X-ray tomography. Three-dimensional analysis reveals the localised response of the coupled THCM processes that is often indistinguishable with conventional lab testing protocols. To improve spatial and temporal resolution while applying field-representative pressure and temperature conditions, small-sized samples are studied. Long-term injection of liquid CO2 resulted in significant fissuring of calcite-rich zones that were for the first time visualised and quantified from the X-ray images. Additionally, a re-arrangement of the pre-existing micro-fissures in the clay matrix was observed. The volumetric response during direct exposure of an Opalinus Clay sample to supercritical CO2 revealed an initial swelling at pre-fissured zones and initiation of new micro-fissures at areas of direct contact with the anhydrous CO2 due to pore water evaporation. Advanced 3D image analysis showed an increasing CO2 uptake in the caprock material with time, suggesting potential CO2 trapping in the material.
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Zimmer, Camille, Alexandra Cassivi, Celia C. Baía, Elizabeth Tilley, Robert Bain, Richard Johnston, and Caetano C. Dorea. "Assessment of Decontamination and Reuse of Disposable Filter Funnels Used in Microbiological Water Quality Tests." Environmental Health Insights 15 (January 2021): 117863022110144. http://dx.doi.org/10.1177/11786302211014400.

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To monitor safely managed drinking water services, an increasing number of countries have integrated water quality testing for Escherichia coli into nationally-representative household surveys such as the Multiple Indicator Cluster Surveys (MICS). However, plastic waste generated during such water quality testing programs, mostly through the use of pre-sterilized disposable materials, is non-negligible. The objective of this study was to evaluate several re-use protocols for disposable filter funnels used by the MICS water quality test kits. Decontamination and re-use protocols were assessed in centralized laboratory and decentralized field settings and neither yielded positive results. Re-use of 100 mL sterile funnels decontaminated with an alcohol wipe resulted in a higher incidence of false positive results (i.e., positive contamination when processing sterile water), both in the laboratory and field; therefore, a higher proportion of positives tests can be expected if these components are re-used. Further improvements to the decontamination technique and training are needed before material re-use can be reliably adopted. Autoclaving the funnels for re-use is feasible, provided that there is capacity to re-package and distribute funnels in a sterile manner.
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Faye, A., Z. P. Stewart, K. Ndung’u-Magiroi, M. Diouf, I. Ndoye, T. Diop, Y. Dalpé, P. V. V. Prasad, and D. Lesueur. "Testing of Commercial Inoculants to Enhance P Uptake and Grain Yield of Promiscuous Soybean in Kenya." Sustainability 12, no. 9 (May 7, 2020): 3803. http://dx.doi.org/10.3390/su12093803.

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The aim of this study was to assess the potential of commercial mycorrhizal inoculants and a rhizobial inoculant to improve soybean yield in Kenya. A promiscuous soybean variety was grown in a greenhouse pot study with two representative soils amended with either water-soluble mineral P or rock P to assess product performance. The performance of selected mycorrhizal inoculants combined with a rhizobial inoculant (Legumefix) was then assessed with farmer groups in three agroecological zones using a small-plot, randomized complete block design to assess soybean root colonization by mycorrhiza, nodulation, and plant biomass production in comparison to rhizobial inoculant alone or with water-soluble mineral P. Greenhouse results showed highly significant root colonization by commercial mycorrhizal inoculant alone (p < 0.001) and in interaction with soil type (p < 0.0001) and P source (p < 0.0001). However, no significant effect was shown in plant P uptake, biomass production, or leaf chlorophyll index. In field conditions, the effects of mycorrhizal and rhizobial inoculants in combination or alone were highly context-specific and may induce either a significant increase or decrease in root mycorrhizal colonization and nodule formation. Mycorrhizal and rhizobial inoculants in combination or alone had limited effect on plant P uptake, biomass production, leaf chlorophyll index, and grain yield. Though some mycorrhizal inoculants induced significant root colonization by mycorrhizal inoculants, this did not lead to higher soybean yield, even in soils with limited P content. Our results are further evidence that inoculant type, soil type, and P source are critical factors to evaluate commercial inoculants on a context-specific basis. However, our results highlight the need for the identification of additional targeting criteria, as inoculant type, soil type, and P source alone were not enough to be predictive of the response. Without the identification of predictive criteria for improved targeting, the economic use of such inoculants will remain elusive.
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Johnson, Marla A., and Gary A. Burlingame. "Lab or Field Testing for Chloramine Residual?" Opflow 30, no. 7 (July 2004): 14–17. http://dx.doi.org/10.1002/j.1551-8701.2004.tb02714.x.

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Snowberg, Erik, and Leeat Yariv. "Testing the Waters: Behavior across Participant Pools." American Economic Review 111, no. 2 (February 1, 2021): 687–719. http://dx.doi.org/10.1257/aer.20181065.

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We leverage a large-scale incentivized survey eliciting behaviors from (almost) an entire undergraduate university student population, a representative sample of the US population, and Amazon Mechanical Turk (MTurk) to address concerns about the external validity of experiments with student participants. Behavior in the student population offers bounds on behaviors in other populations, and correlations between behaviors are similar across samples. Furthermore, non-student samples exhibit higher levels of noise. Adding historical lab participation data, we find a small set of attributes over which lab participants differ from non-lab participants. An additional set of lab experiments shows no evidence of observer effects. (JEL C83, D90, D91)
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Coorevits, Lynn, Annabel Georges, and Dimitri Schuurman. "A Framework for Field Testing in Living Lab Innovation Projects." Technology Innovation Management Review 8, no. 12 (December 20, 2018): 40–50. http://dx.doi.org/10.22215/timreview/1204.

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Dissertations / Theses on the topic "Field Representative Lab Testing"

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Choudhury, Noor. "Reliability prediction of electronic products combining models, lab testing and field data analysis." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-202594.

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At present there are different reliability standards that are being used for carrying out reliability prediction. They take into consideration different factors, environments and data sources to give reliability data for a wide range of electronic components. However, the users are not aware of the differences between the different reliability standards due to the absence of benchmarks of the reliability standards that would help classify and compare between them. This lack of benchmark denies the users the opportunity to have a top-down view of these different standards and choose the appropriate standard based on qualitative judgement in performing reliability prediction for a specific system. To addres this issue, the benchmark of a set of reliability standards are developed in this dissertation. The benchmark helps the users of the selected reliability standards understand the similarities and differences between them and based on the evaluation criterion defined can easily choose the appropriate standard for reliability prediction in different scenarios. Theoretical reliability prediction of two electronic products in Bombardier is performed using the standards that have been benchmarked. One of the products is matured with available incident report from the field while the other is a new product that is under development and yet to enter in service. The field failure data analysis of the matured product is then compared and correlated to the theoretical prediction. Adjustment factors are then derived to help bridge the gap between the theoretical reliability prediction and the reliability of the product in field conditions. Since the theoretical prediction of the product under development could not be used to compare and correlate any data due to unavailability, instead, the accelerated life test is used to find out the product reliability during its lifetime and find out any failure modes intrinsic to the board. A crucial objective is realized as an appropriate algorithm/model is found in order to correlate accelerated test temperature-cycles to real product temperature-cycles. The PUT has lead-free solder joints, hence, to see if any failures occurring due to solder joint fatigue has also been of interest. Additionally, reliability testing simulation is a performed in order to verify and validate the performance of the product under development during ALT. Finally, the goal of the thesis is achieved as separate models are proposed to predict product reliability for both matured products and products under development. This will assist the organization in realizing the goal of predicting their product reliability with better accuracy and confidence.
För närvarande finns det olika tillförlitlighetsstandarder som används för att utföra tillförlitlighet förutsägelse. De tar hänsyn till olika faktorer, miljöer och datakällor för att ge tillförlitlighetsdata för ett brett spektrum av elektronikkomponenter. Men användarna inte är medvetna om skillnaderna mellan de olika tillförlitlighetsstandarder på grund av avsaknaden av riktmärken för tillförlitlighetsstandarder som skulle hjälpa klassificera och jämföra mellan dem. Denna brist på jämförelse förnekar användarna möjlighet att få en top-down bakgrund av dessa olika standarder och välja lämplig standard baserad på kvalitativ bedömning att utföra tillförlitlighet prognos för ett specifikt system. För att lösa detta problem, är riktmärket en uppsättning av tillförlitlighetsstandarder som utvecklats i denna avhandling. Riktmärket hjälper användarna av de utvalda tillförlitlighetsstandarder förstå likheter och skillnader mellan dem och på grundval av bedömningskriteriet definieras kan enkelt välja lämplig standard för pålitlighet förutsägelse i olika scenarier. Teoretisk tillförlitlighet förutsäga två elektroniska produkter i Bombardier utförs med hjälp av standarder som har benchmarking. En av produkterna är mognat med tillgängliga incidentrapport från fältet, medan den andra är en ny produkt som är under utveckling och ännu inte gå in i tjänsten. Analysen av den mognade produkten fält feldata jämförs sedan och korreleras till den teoretiska förutsägelsen. Justeringsfaktorer sedan härledas för att överbrygga klyftan mellan den teoretiska tillförlitlighet förutsägelse och tillförlitligheten av produkten i fältmässiga förhållanden. Eftersom den teoretiska förutsägelsen av produkt under utveckling inte kan användas för att jämföra och korrelera alla data på grund av otillgängligheten, i stället är det accelererade livslängdstest som används för att ta reda på produktens tillförlitlighet under dess livstid och reda ut eventuella felmoder inneboende till styrelsen . Ett viktigt mål realiseras som en lämplig algoritm /modell finns i syfte att korrelera accelererade provningen temperaturcykler på verkliga produkttemperatur cykler. PUT har blyfria lödfogar därmed att se om några fel inträffar på grund av löda gemensam trötthet har också varit av intresse. Dessutom är tillförlitlighet testning simulering en utförs för att verifiera och validera produktens prestanda under utveckling under ALT. Slutligen är målet med avhandlingen uppnås som separata modeller föreslås att förutsäga produktens tillförlitlighet för både förfallna och produkter under utveckling. Detta kommer att hjälpa organisationen att förverkliga målet att förutsäga deras tillförlitlighet med bättre noggrannhet och förtroende.
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Held, Steffen [Verfasser]. "Advances in performance testing and training in competitive rowing : from the lab to the field / Steffen Held." Köln : Zentralbibliothek der Deutschen Sporthochschule, 2021. http://d-nb.info/1238236731/34.

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Salim, Witopo. "CO2-selective Membranes for Fuel Cell H2 Purification and Flue Gas CO2 Capture: From Lab Scale to Field Testing." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1514889154359659.

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Books on the topic "Field Representative Lab Testing"

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Gregg, Michael. Build your own security lab: A field guide for network testing. Indianapolis, IN: Wiley, 2008.

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Gregg, Michael. Build your own security lab: A field guide for network testing. Indianapolis, IN: Wiley, 2008.

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Gregg, Michael. Build your own security lab: A field guide for network testing. Indianapolis, IN: Wiley, 2008.

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Geo-Denver 2000 (2000 Denver, Colo.). Geotechnical measurements: Lab and field : proceedings of sessions of Geo-Denver 2000, August 5-8, 2000, Denver, Colorado. Reston, Va: American Society of Civil Engineers, 2000.

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Bahia, Hussain U. Evaluation and correlation of lab and field tensile strength ratio (TSR) procedures and values in assessing the stripping potential of asphalt mixes. [Madison, Wis.]: The Unit, 1999.

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Gregg, Michael. Build Your Own Security Lab: A Field Guide for Network Testing. Wiley & Sons, Incorporated, John, 2011.

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Gregg, Michael. Build Your Own Security Lab: A Field Guide for Network Testing. Wiley & Sons, Incorporated, John, 2010.

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Build Your Own Security Lab: A Field Guide for Network Testing. Wiley, 2008.

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Gregg, Michael. Build Your Own Security Lab: A Field Guide for Network Testing. Wiley & Sons, Incorporated, John, 2008.

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Geotechnical Measurements: Lab and Field : Proceedings of Sessions of Geo-Denver 2000 : August 5-8, 200O, Denver, Colorado (Geotechnical Special Publication). Amer Society of Civil Engineers, 2000.

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Book chapters on the topic "Field Representative Lab Testing"

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Boonham, Neil. "On-Site Testing: Moving Decision Making from the Lab to the Field." In Detection and Diagnostics of Plant Pathogens, 135–46. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-9020-8_9.

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Lichters, Marcel, Robert Möslein, Marko Sarstedt, and Andreas Scharf. "Comparing Lab, Virtual, and Field Environments in Sensory Product Acceptance Testing: An Abstract." In Back to the Future: Using Marketing Basics to Provide Customer Value, 143–44. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66023-3_54.

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Rawlings, Christopher John, and Robert P. Davey. "From Farm to FAIR: The Trials of Linking and Sharing Wheat Research Data." In Towards Responsible Plant Data Linkage: Data Challenges for Agricultural Research and Development, 107–23. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-13276-6_6.

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AbstractThis paper describes progress towards an integrated data framework that supports the sharing of data from the Designing Future Wheat (DFW) strategic research programme funded by the UK BBSRC. DFW is a 5 year project (https://designingfuturewheat.org.uk/) that spans eight research institutes and universities, and aims to deliver pre-breeding germplasm to breeders to improve and increase the genetic diversity of their breeding programs. DFW is committed to making its data open to the wider research community by adopting FAIR data sharing approaches. It is also a good example of a data-intensive strategic research programme which follows a cyclical Field-to-Lab-to-Field approach that is representative of much contemporary and multidisciplinary crop science research. However, even with dedicated funding to develop crop data research infrastructures within DFW, we found that there are many challenges that require pragmatic and flexible ways to enable them to interoperate. We present key DFW data resources as a case study to assess progress and discuss these challenges with a view to developing infrastructure that exposes metadata-rich datasets and that meets FAIR principles.
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Bell, Michael J., Michael L. Thompson, and Philip W. Moody. "Using Soil Tests to Evaluate Plant Availability of Potassium in Soils." In Improving Potassium Recommendations for Agricultural Crops, 191–218. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-59197-7_8.

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AbstractThe purpose of this chapter is to describe how bioavailable soil K is assessed or predicted by soil tests. Soil testing commonly refers to the collection of a sample of soil representative of a field or agronomic management unit and, by way of extraction using chemical reagents, determination of the quantity of a nutrient that can be related to plant uptake or yield. Normally only a small fraction of the total quantity of the nutrient present in the soil is extracted during the procedure, but if that amount can be correlated with actual crop uptake or overall crop productivity, then the soil test is deemed to have useful predictive power.Soil tests are routinely used to guide applications of fertilizer to soil so that crop demand for nutrients can be met effectively and economically. Here, we summarize the procedures involved in collecting a representative soil sample for K analysis, outline how that sample should be prepared for laboratory analysis, highlight the principles and mode of action of routine soil tests, and explore some common issues that may confound the correlation between a soil K test result and plant K acquisition or crop yield. Soil testing methods are discussed in the context of their relationship to the different forms of soil K and the in-soil chemical processes that may change these forms into K that can be taken up by roots.
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"Lab Testing and Field Testing in Digital Human Modeling." In Handbook of Digital Human Modeling, 801–12. CRC Press, 2016. http://dx.doi.org/10.1201/9781420063523-55.

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Hanson, Lars, and Tania Dukic. "Lab Testing and Field Testing in Digital Human Modeling." In Human Factors and Ergonomics, 45–1. CRC Press, 2008. http://dx.doi.org/10.1201/9781420063523.ch45.

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Asbach, Lennart, Hardi Hungar, and Michael Meyer zu Hörste. "Automated Testing." In Advances in Civil and Industrial Engineering, 250–72. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-5225-0084-1.ch012.

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The need for time- and cost-efficient tests is highly relevant for state-of-the-art safety-related train control and rail traffic management systems. Those systems get increasingly more complex and so testing becomes a more and more and important cost factor. This chapter discusses some approaches to relocate tests from the field to the lab, reduce cost and duration while improving quality of lab tests. The European Train Control System (ETCS) is used as an example, but the approaches and results can be applied to other systems as well, for instance interlocking.
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Asbach, Lennart, Hardi Hungar, and Michael Meyer zu Hörste. "Automated Testing." In Rapid Automation, 1434–56. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-8060-7.ch067.

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The need for time- and cost-efficient tests is highly relevant for state-of-the-art safety-related train control and rail traffic management systems. Those systems get increasingly more complex and so testing becomes a more and more and important cost factor. This chapter discusses some approaches to relocate tests from the field to the lab, reduce cost and duration while improving quality of lab tests. The European Train Control System (ETCS) is used as an example, but the approaches and results can be applied to other systems as well, for instance interlocking.
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"A true triaxial stress cell (TTSC) used for simulations of real field operations in the lab." In True Triaxial Testing of Rocks, 327–36. CRC Press, 2012. http://dx.doi.org/10.1201/b12705-30.

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Boon, Andrea J. "Neuromuscular Ultrasound in the EMG Lab." In Clinical Neurophysiology, 484–94. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780190259631.003.0027.

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Neuromuscular ultrasound is a portable, relatively inexpensive, widely available imaging modality that can be used to enhance the electrodiagnostic evaluation by improving its safety and accuracy, particularly in high-risk settings such as obesity, altered anatomy, anticoagulation, or other technically challenging situations. Furthermore, the emerging field of neuromuscular ultrasound has the potential to significantly increase diagnostic yield in patients presenting for electrodiagnostic testing. Focal lesions affecting nerve or muscle as well as more generalized polyneuropathy and myopathy can be diagnosed and characterized with ultrasound, including certain cases in which electrodiagnostic testing is inconclusive or negative. This chapter will review the rationale for combining electrodiagnosis with sonography in the clinical setting, including use of ultrasound to enhance safety and diagnostic yield when evaluating for neuromuscular respiratory failure.
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Conference papers on the topic "Field Representative Lab Testing"

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Alabbad, Mohammed, Mohammad Alqam, and Hussain Aljeshi. "Geomechanical Properties Estimation Utilizing Artificial Intelligence Prediction Tool." In SPE Middle East Oil & Gas Show and Conference. SPE, 2021. http://dx.doi.org/10.2118/204672-ms.

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Abstract Drilling and fracturing are considered to be one of the major costs in the oil and gas industry. Cost may reach tens of millions of dollars and improper design may lead to significant loss of money and time. Reliable fracturing and drilling designs are governed with decent and representative rock mechanical properties. Such properties are measured mainly by analyzing multiple previously cored wells in the same formation. The nature of the conducted tests on the collected plugs are destructive and samples cannot be restored after performing the rock mechanical testing. This may disable further evaluation on the same plugs. This study aims to build an artificial neural network (ANN) model that is capable of predicting the main rock mechanical properties, such as Poisson's ratio and compressive strength from already available lab and field measurements. The log data will be combined together with preliminary lab rock properties to build a smart model capable of predicting advance rock mechanical properties. Hence, the model will provide initial rock mechanical properties that are estimated almost immediately and without undergoing costly and timely rock mechanical laboratory tests. The study will also give an advantage to performing preliminary estimates of such parameters without the need for destructive mechanical core testing. The ultimate goal is to draw a full field geomechanical mapping with this tool rather than having localized scattered data. The AI tool will be trained utilizing representative sets of rock mechanical data with multiple feed-forward backpropagation learning techniques. The study will help in localizing future well location and optimizing multi-stage fracturing designs. These produced data are needed for upstream applications such as wellbore stability, sanding tendency, hydraulic fracturing, and horizontal/multi-lateral drilling.
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Aye-Addo, Papa Aye N., Guillermo Paniagua, David G. Cuadrado, Lakshya Bhatnagar, Antonio Castillo Sauca, James Braun, Mateo Gomez-Gomez, Terrence Meyer, and Matthew Bloxham. "Development of a Lifetime Pressure Sensitive Paint Procedure for High-Pressure Vane Testing." In ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/gt2021-59886.

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Abstract Optical measurements based on fast response Pressure Sensitive Paint (PSP) provide enhanced spatial resolution of the pressure field. This paper presents laser lifetime PSP at 20 kHz, with precise calibrations, and results from a demonstration in an annular vane cascade. The laser lifetime PSP methodology is first evaluated in a linear wind tunnel with a converging-diverging nozzle followed by a wavy surface. This test section is fully optically accessible with maximum modularity. A data reduction procedure is proposed for the PSP calibration, and optimal pixel binning is selected to reduce the uncertainty. In the annular test section, laser lifetime PSP was used to measure the time-averaged static pressure field on a section of the suction surface of a high-pressure turbine vane. Tests were performed at engine representative conditions in the Purdue Big Rig for Annular Stationary Turbine Analysis module at the Purdue Experimental Turbine Aerothermal Lab. The 2-D pressure results showed a gradual increase of pressure in the spanwise and flow directions, corroborated with local static pressure taps and computational results. The variation in PSP thickness was measured as a contribution to the uncertainty. The discrete Fourier transform of the unsteady pressure signal showed increased frequency content in wind-on conditions compared to wind-off conditions at the mid-span and 30% span. Compared to the mid-span region, the hub end wall region had an increase in frequencies and pressure amplitude. This result was anticipated given the expected presence of secondary flow structures in the near hub region.
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Anagnostopoulos, John S., Phoevos K. Koukouvinis, Fotis G. Stamatelos, and Dimitris E. Papantonis. "Optimal Design and Experimental Validation of a Turgo Model Hydro Turbine." In ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/esda2012-82565.

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This work presents the development and application of a new optimal design methodology for Turgo impulse hydro turbines. The numerical modelling of the complex, unsteady, free surface flow evolved during the jet-runner interaction is carried out by a new Lagrangian particle method, which tracks a number of representative flow elements and accounts for the various hydraulic losses and pressure effects through special adjustable terms introduced in the particle motion equations. In this way, the simulation of a full periodic interval of the flow field in the runner is completed in negligible computer time compared to the corresponding needs of modern CFD software. Consequently, the numerical design optimization of runner geometry becomes feasible even in a personal computer and affordable by small and local manufacturers. The bucket shape of a 70 kW Turgo model is properly parameterized and numerically optimized using a stochastic optimization software to maximize the hydraulic efficiency of the runner. The optimal runner and the rest turbine parts are then manufactured and installed in the Lab for testing. Detailed performance measurements are conducted and the results show satisfactory agreement with the numerical predictions, thus validating the reliability and effectiveness of the new methodology.
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Al-Yami, Abdullah Saleh, Hisham A. Nasr-El-Din, Mohd Zaki Bin Awang, Ahmed Saleh Al-Humaidi, and Mohammed Khalid Al-Arfaj. "Swelling Packers; Lab Testing and Field Application." In International Petroleum Technology Conference. International Petroleum Technology Conference, 2008. http://dx.doi.org/10.2523/iptc-11997-ms.

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Al-Yami, A. S., H. A. Nasr-El-Din, M. Z. Awang, A. S. Al-Humaidi, and M. K. Al-Arfaj. "Swelling Packers: Lab Testing and Field Application." In IPTC 2008: International Petroleum Technology Conference. European Association of Geoscientists & Engineers, 2008. http://dx.doi.org/10.3997/2214-4609-pdb.148.iptc11997.

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Aften, Carl W., Yaser Asgari, and Sharon Warren. "A Critical Survey of the Rheological Properties Used to Predict Friction Reducer Performance." In SPE Eastern Regional Meeting. SPE, 2022. http://dx.doi.org/10.2118/211874-ms.

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Abstract Increased interest in correlating rheological properties to the prediction of proppant transport and/or friction reduction performance produces sporadic and isolated experimental evidence. Obtaining accurate results specifically for viscosity, proposedly representative of proppant transport and friction reduction, is challenging and therefore, extrapolating polymer melt rheology to dilute polymer solutions is problematic particularly when applying linear viscoelastic theory. This paper presents a simultaneous, multivariable research approach illustrating how viscoelastic results and hypotheses for anionic, cationic, and amphoteric friction reducers in various brines provide insight into the limitations of constricted variable and experimental range methodology. Establishing a relevant application window for viscoelastic friction reducers is complicated. Guar gum linear gels are viscous in nature and more approachable than synthetic friction reducers when manipulated for rheological experimentation and field application extrapolation. However, crosslinking of guar gum linear gels results in a viscoelastic fluid of greater complexity, thus even the simplest of linear gels must be subjected to a variety of unique bench tests differentiated by and specific to individual service companies’ field application requirements. Friction reducers’ crossover of storage and loss moduli are dependent upon how the reducers were dispersed and hydrated with respect to brine characters, times, and mixing energies. Furthermore, correlating rheological measurements developed for the melt state may not appropriately adapt to the friction reducer application's dilute polymer state. Response surfaces were generated for various anionic, cationic, and amphoteric friction reducers with testing variables including brine type, loading, mixing rpm, mixing duration, shear rate, linear shear strain, responses of viscosity, and moduli with corresponding cross over results. Excellent regression was obtained from these complex, interactive response surfaces, revealing the breadth of variability obtained from complex experimentation and validating that studies using simplistic procedures provide limited and potentially biased performance conclusions. When relating rheology to friction reduction and proppant transport, whether in the lab or the field, and understanding the complexities of polymer absolute dispersion, dissolution, and kinetics indicate that, with respect to performance prediction, limited knowledge is gained from simple polymer make down regimens. This work offers a guideline for assimilating comprehensive studies of complex versus oversimplified, limited scope rheological measurement research and analyses.
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Ritzen, Michiel, Zeger Vroon, Ronald Rovers, Chris Geurts, and Bert Blocken. "Real Life Lab BIPV field testing in the Netherlands." In 2015 IEEE 42nd Photovoltaic Specialists Conference (PVSC). IEEE, 2015. http://dx.doi.org/10.1109/pvsc.2015.7355634.

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Al-Yami, A. S., M. H. Alqam, A. Riefky, and A. U. Shafqat. "Self Healing Durable Cement; Development, Lab Testing, and Field Execution." In SPE/IADC Middle East Drilling Technology Conference and Exhibition. Society of Petroleum Engineers, 2018. http://dx.doi.org/10.2118/189397-ms.

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Payandehjoo, Kasra, and Ruska Patton. "Very-near-field testing of large antennas in lab environment." In 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE, 2015. http://dx.doi.org/10.1109/aps.2015.7304954.

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Wang, Qianqian, Yuriy Brun, and Alessandro Orso. "Behavioral Execution Comparison: Are Tests Representative of Field Behavior?" In 2017 IEEE International Conference on Software Testing, Verification and Validation (ICST). IEEE, 2017. http://dx.doi.org/10.1109/icst.2017.36.

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Reports on the topic "Field Representative Lab Testing"

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Lee, Linda, Xihong Zhai, and Jaesun Lee. Lab Testing and Field Implementation of Soil Flushing. West Lafayette, IN: Purdue University, 2006. http://dx.doi.org/10.5703/1288284314229.

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Lee, Linda, Xihong Zhai, and Jaesun Lee. Lab Testing and Field Implementation of Soil Flushing. Purdue University Press, 2006. http://dx.doi.org/10.5703/1288284313377.

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Chandrasekhar, Arun, Horacio Larreguy, and Juan Pablo Xandri. Testing Models of Social Learning on Networks: Evidence from a Lab Experiment in the Field. Cambridge, MA: National Bureau of Economic Research, August 2015. http://dx.doi.org/10.3386/w21468.

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Baxter, Van D., Richard W. Murphy, C. Keith Rice, and Randall Lee Linkous. High Efficiency Water Heating Technology Development Final Report. Part I, Lab/Field Performance Evaluation and Accelerated Life Testing of a Hybrid Electric Heat Pump Water Heater (HPWH). Office of Scientific and Technical Information (OSTI), April 2016. http://dx.doi.org/10.2172/1245362.

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Stavland, Arne, Siv Marie Åsen, Arild Lohne, Olav Aursjø, and Aksel Hiorth. Recommended polymer workflow: Lab (cm and m scale). University of Stavanger, November 2021. http://dx.doi.org/10.31265/usps.201.

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Polymer flooding is one of the most promising EOR methods (Smalley et al. 2018). It is well known and has been used successfully (Pye 1964; Standnes & Skjevrak 2014; Sheng et al. 2015). From a technical perspective we recommend that polymer flooding should be considered as a viable EOR method on the Norwegian Continental Shelf for the following reasons: 1. More oil can be produced with less water injected; this is particularly important for the NCS which are currently producing more water than oil 2. Polymers will increase the aerial sweep and improve the ultimate recovery, provided a proper injection strategy 3. Many polymer systems are available, and it should be possible to tailor their chemical composition to a wide range of reservoir conditions (temperature and salinity) 4. Polymer systems can be used to block water from short circuiting injection production wells 5. Polymer combined with low salinity injection water has many benefits: a lower polymer concentration can be used to reach target viscosity, less mechanical degradation, less adsorption, and a potential reduction in Sor due to a low salinity wettability effect. There are some hurdles when considering polymer flooding that needs to be considered: 1. Many polymer systems are not at the present considered as green chemicals; thus, reinjection of produced water is needed. However, results from polymer degradation studies in the IORCentre indicates that a. High molecular weight polymers are quickly degraded to low molecular weight. In case of accidental release to the ocean low molecular weight polymers are diluted and the lifetime of the spill might be quite short. According to Caulfield et al. (2002) HPAM is not toxic, and will not degrade to the more environmentally problematic acrylamide. b. In the DF report for environmental impact there are case studies using the DREAM model to predict the transport of chemical spills. This model is coupled with polymer (sun exposure) degradation data from the IORCentre to quantify the lifetime of polymer spills. This approach should be used for specific field cases to quantify the environmental risk factor. 2. Care must be taken to prepare the polymer solution offshore. Chokes and vales might be a challenge but can be mitigating according to the results from the large-scale testing done in the IORCentre (Stavland et al. 2021). None of the above-mentioned challenges are server enough to not consider polymer flooding. HPAM is neither toxic, nor bio-accumulable, or bio-persistent and the CO2 footprint from a polymer flood may be significantly less than a water flood (Dupuis et al. 2021). There are at least two contributing factors to this statement, which we will return in detail to in the next section i) during linear displacement polymer injection will produce more oil for the same amount of water injected, hence the lifetime of the field can be shortened ii) polymers increase the arial sweep reducing the need for wells.
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Ali, Ayman, Ahmed Saidi, Yusef Mehta, Christopher DeCarlo, Mohamed Elshear, Benjamin Cox, and Wade Lein. Development and validation of a balanced mix design approach for CIR mixtures using full-scale testing. Engineer Research and Development Center (U.S.), October 2022. http://dx.doi.org/10.21079/11681/45704.

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The main goal of this study was to improve the performance of cold in-place recycling (CIR) mixtures by using a balanced mix design (BMD) approach. This study involved preparing and testing CIR mixtures in the lab at varying contents of bituminous additives and constant content of 1% ce-ment and 3% water. Eight combinations of CIR mixtures were produced for this study using two binders (emulsion and foamed asphalt), compaction efforts (30 and 70 gyrations), and curing processes (72 hours at 140°F and 50°F). Results showed that asphalt pavement analyzer, semicircular bend, and indirect tensile strength tests presented the highest correlation with the change of binder contents. The study successfully used the developed BMD for designing CIR mixtures and selecting their optimum binder contents. It then used three balanced CIR mixtures to construct full-scale pavement sections to validate the BMD approach in the field. A heavy vehicle simulator was used to apply different accelerated loadings on each section. Results showed that the CIR section with 2% binder presented the best rutting performance under truck loading and the highest rutting susceptibility under aircraft loading. Conversely, the CIR section with 3% binder presented the highest cracking resistance under both truck and aircraft loading.
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Hodul, M., H. P. White, and A. Knudby. A report on water quality monitoring in Quesnel Lake, British Columbia, subsequent to the Mount Polley tailings dam spill, using optical satellite imagery. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330556.

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In the early morning on the 4th of August 2014, a tailings dam near Quesnel, BC burst, spilling approximately 25 million m3 of runoff containing heavy metal elements into nearby Quesnel Lake (Byrne et al. 2018). The runoff slurry, which included lead, arsenic, selenium, and vanadium spilled through Hazeltine Creek, scouring its banks and picking up till and forest cover on the way, and ultimately ended up in Quesnel Lake, whose water level rose by 1.5 m as a result. While the introduction of heavy metals into Quesnel Lake was of environmental concern, the additional till and forest cover scoured from the banks of Hazeltine Creek added to the lake has also been of concern to salmon spawning grounds. Immediate repercussions of the spill involved the damage of sensitive environments along the banks and on the lake bed, the closing of the seasonal salmon fishery in the lake, and a change in the microbial composition of the lake bed (Hatam et al. 2019). In addition, there appears to be a seasonal resuspension of the tailings sediment due to thermal cycling of the water and surface winds (Hamilton et al. 2020). While the water quality of Quesnel Lake continues to be monitored for the tailings sediments, primarily by members at the Quesnel River Research Centre, the sample-and-test methods of water quality testing used, while highly accurate, are expensive to undertake, and not spatially exhaustive. The use of remote sensing techniques, though not as accurate as lab testing, allows for the relatively fast creation of expansive water quality maps using sensors mounted on boats, planes, and satellites (Ritchie et al. 2003). The most common method for the remote sensing of surface water quality is through the use of a physics-based semianalytical model which simulates light passing through a water column with a given set of Inherent Optical Properties (IOPs), developed by Lee et al. (1998) and commonly referred to as a Radiative Transfer Model (RTM). The RTM forward-models a wide range of water-leaving spectral signatures based on IOPs determined by a mix of water constituents, including natural materials and pollutants. Remote sensing imagery is then used to invert the model by finding the modelled water spectrum which most closely resembles that seen in the imagery (Brando et al 2009). This project set out to develop an RTM water quality model to monitor the water quality in Quesnel Lake, allowing for the entire surface of the lake to be mapped at once, in an effort to easily determine the timing and extent of resuspension events, as well as potentially investigate greening events reported by locals. The project intended to use a combination of multispectral imagery (Landsat-8 and Sentinel-2), as well as hyperspectral imagery (DESIS), combined with field calibration/validation of the resulting models. The project began in the Autumn before the COVID pandemic, with plans to undertake a comprehensive fieldwork campaign to gather model calibration data in the summer of 2020. Since a province-wide travel shutdown and social distancing procedures made it difficult to carry out water quality surveying in a small boat, an insufficient amount of fieldwork was conducted to suit the needs of the project. Thus, the project has been put on hold, and the primary researcher has moved to a different project. This document stands as a report on all of the work conducted up to April 2021, intended largely as an instructional document for researchers who may wish to continue the work once fieldwork may freely and safely resume. This research was undertaken at the University of Ottawa, with supporting funding provided by the Earth Observations for Cumulative Effects (EO4CE) Program Work Package 10b: Site Monitoring and Remediation, Canada Centre for Remote Sensing, through the Natural Resources Canada Research Affiliate Program (RAP).
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