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 139 for “"Field trial"”.
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Can Police Officers be Taught to be Fair? Lessons from a Randomised Controlled Field Trial on Training in Legitimacy for UK Counterterrorism Police Officers
… a large-scale cluster randomised controlled trial. The results suggest differing results in terms of both measures. We show that the training has no statistically significant effects on the degree to which officers retain the belief in their moral right to be bestowed with the powers vested …
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The use of rockdust and composted materials as soil fertility amendments
… compost for use as soil fertility amendments. A field trial was conducted over three years to investigate the impact these materials had on plant yield, plant nutrient content, soil chemistry and soil microbial communities in direct comparison with chemical fertilizer and farmyard manure. There …
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The effect of biostimulation on geochemical and microbiological conditions in an isolated dolostone fracture
A biostimulation field trial was conducted to determine the effect of nutrient addition on microbial populations in a fractured rock environment. The ultimate goal of this research is to induce bioclogging in rock fractures as a method of in situ containment and remediation of contaminated …
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Utilização de geotêxteis como reforço de aterros sobre solos moles
… presented on the construction of an instrumented field trial to evaluate geotextile efficiency as reinforcement under the base of an access road on soft ground. The field trial was carried out along the access road for the construction of a second large trial embankment on vertical drains. This …
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Biological control of wood decay in ground contact timbers
… agent for ground contact timber, and a field trial was designed to assess the isolate on a larger scale.<br/><br/>Development of the field trial included the formulation of an appropriate delivery system. The biocontrol agent was applied to wood as a fungal spore suspension prepared in …
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Long-term n fertilization affects soil bacterial communities in agronomic fields
… the N cycle to different N fertilization levels. Field trial in CCC on three N fertilization rates (0, 210, and 280 kg N/ha) is arranged in a randomized complete block design (RCBD) with three replications. Using 16S rRNA gene-based pyrosequencing analysis of the V4 region and DNA extracted from …
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Geosynthetic stabilization of unpaved roads on soft ground : a field evaluation
A full scale field trial was carried out to investigate the performance of different geosynthetics in unpaved road construction over soft ground. The test site comprises five 16 m long, by 4.5 m wide test sections, built on a subgrade of undrained shear strength approximately 40 kPa. One is …
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Mechanisms of Microbial Methane Production from Sub-Bituminous Australian Coal
… State Coal Mine (LSCM) in the Eastern NSW coalfields. Sub-bituminous coal from the LSCM was found to contain long chain aliphatic compounds ranging from C11 to C27 and aromatic compounds, such as methylated naphthalenes, fluorene and phenanthrene. When treated with oxidative chemicals and …
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Untersuchungen zum Einsatz Seltener Erden als Leistungsförderer beim Schwein
… feeding experiments with fattening pigs and a field trial with weaned piglets are described. In the first experiment a total of 48 pigs (German Landrace x Piétrain) were allotted to four dietary groups, 12 pigs in each group. The animals received a mixture of rare earth elements in a …
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Design of a Mass-Manufacturable Globally Distributable Passive Prosthetic Foot
… foot prototypes have been tested in a long-term field trial in India and in gait labs in the United States. The feet demonstrated robustness to use for activities of daily living in India, and as good or better biomechanical performance and user satisfaction than commercial carbon fiber feet sold …
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Novel methods for monitoring grout penetration in hard rock
… grout were then produced for use in two field trials. The first field trial provided the proof of concept that the grout could be detected both outside of the laboratory environment and at depth. The second field trial established how the magnetic field of the detectable grout changed …
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A Guidance Algorithm for Unmanned Surface Vehicle Exhibiting Sternward Motion
… algorithm. We provide successful simulation and field-trial results that demonstrate the performance of backward path planning algorithm.
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Abrasive wear with particular reference to digger teeth
… between the two. In a very wide range of industrial applications, abrasive wear is the main reason for component and equipment repair or replacement. In most of these applications, especially those of earth moving, construction and mining equipment, digger teeth are used to improve equipment …
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Research and development of an instructional system : teaching security supervisors in the Canadian Forces
… experts and instructional design experts. A field trial investigated the accuracy of content, the adequacy of instructional design decisions, and learner attitudes toward the courseware and the implementation of the course. Generally, this Research and Development Model was deemed to be a …
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MEASURING AND MODELLING COVER CROP GROWTH AND AGRONOMIC EFFECTS
… range of weather and soil conditions, while the field trial assessments require large resource investments. However, the application of a simulation model to white mustard and black oat cover crops presents several knowledge gaps, as the limited number of studies focused on winterkilled cover …
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Capturing Photosynthetic Traits from the Progenitors of Wheat
… portable infrared gas analysers, a collection of field grown progenitor wheat species and modern wheat varieties were screened for traits linked to the supply and demand components of flag leaf photosynthesis. Two Triticum dicoccoides (AABB) individuals had high rates of flag leaf photosynthesis, …
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To identify indicators of an effective extension unit program
… Three (3) probes were sent to the agents and a field trial was conducted in fifty-four (54) extension units (nine (9) units for each extension district) by the district chairpersons. Probe I requested study participants to submit one-liners which were indicators of an effective unit program. …
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A Case Study on the Economic Feasibility of Producing Maple liners in a Traditional Tobacco Greenhouse
… systems. This economic study was based on a field trial conducted in Halifax County, Virginia.
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Inter-varietal variation in elemental uptake by rice and its implications for public health : a case study of Dareta village, Zamfara State, Nigeria
… to select a suitable site forthe rice varieties’ field trial; local rice samples were collected from four selected rice farms to examinePb accumulation and partitioning in different parts of the rice plant (experiment 1). This was followedby the field trial for the 10 most commonly grown Nigerian …
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An Investigation into the importance of propagule provenance in restoration ecology
… seed procurement to local sources, using a field trial which assessed the success of limestone grassland re-creation under different treatments. Propagules were collected from two contrasting habitats within each of six regions in the British Isles and a common garden experiment was used to …
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