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 110 for “"DSR"”.
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Expression of dsr messenger RNA by sulfate reducing bacteria with varying substrate and temperature
… number of messenger RNA (mRNA) transcripts of dsr, a critical gene in the sulfate reduction pathway, in a cell. Because conditions in aquifers can be quite different from those maintained in laboratory experiments, it is unknown whether the results of such studies can be applied to field …
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Quantifying the expression of dissimilatory sulfite reductase as a metric for sulfate reduction rates
… expression of dissimilatory sulfite reductase (dsr mRNA), a critical enzyme in the sulfate reduction pathway, can serve as an indicator of the rate of sulfate reduction in natural systems. We grew Desulfovibrio vulgaris in fed-batch reactors under electron-donor limiting conditions. To simulate …
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Digital subtraction radiography for monitoring carious lesions using clinical radiographs
… subtraction radiography (DSR) has been available for several years and has a possible application in monitoring progression and regression of carious lesions over time. DSR is the process of computerised subtraction of grey values of geometrically corresponding pixels in …
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Control Applications and Economic Evaluations of Distributed Series Reactors in Unbalanced Electrical Transmission Systems
… transmission lines. Distributed Series Reactor (DSR) control is a new smart grid technology that can be applied to control flows in the transmission system. DSRs can be used to balance phase flows in a single line as well as to control the distribution of flow in parallel flow paths. This …
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A fast non-dominated sorting guided genetic algorithm for multi-objective power distribution system reconfiguration problem
… Distribution system reconfiguration (DSR) determines the status of both sectionalizing switches (which are normally closed) and tie switches (which are normally open). DSR has great benefits in both normal and abnormal operations (outages). DSR is a multi-objective, non-linear problem. …
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EXPLORING THE MASTER CURVE PARAMETERS FOR EFFICIENT PERFORMANCE GRADING OF ASPHALT BINDERS FROM THE UNITED STATES OF AMERICA
… This study utilized Dynamic Shear Rheometer (DSR) testing to obtain rheological indicators such as Tδ=30°, Tδ=45°, Intermediate Temperature Performance Grade (ITPG), and master curve parameters under slow and fast cooling rates. Significant correlations between DSR indicators at different …
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An investigation into the use of video and performance analysis systems and design in Cycling New Zealand and the Team Pursuit discipline
… and questions. A Design Science Research (DSR) approach was used to provide a strong framework for this research. The DSR framework follows the structure of problem identification, objectives of a solution, design and development, demonstration, evaluation and communication of findings. …
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Bounded Dynamic Source Routing in Mobile Ad Hoc Networks
… the network. Bounded-dynamic source routing (B-DSR), is proposed to curb this multitude of superfluous broadcasts, thus enabling to reserve valuable resources like bandwidth and battery power. B-DSR establishes a bounded region in the network, only within which, transmissions of route discovery …
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Enhancing Competitive Intelligence Using Geospatial Analysis and Social-Media Corpora
… research paper uses the design-science-research (DSR) approach to design and build the proposed artifact. From DSR lens, the artifact is evaluated using a mixed-method to examine the constructed artifact. Findings indicated participants had positive reactions to system usability, user experience, …
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Sources of Nest Failure in Mississippi Sandhill Cranes, Grus canadensis pulla: Nest Survival Modeling and Predator Occupancy
… and egg inviability. Mean daily survival rate (DSR) was 0.72. The best approximating models included covariates for season date, temperature and nest age. DSR decreased with increasing season date, increasing nest age, and decreasing temperature. Hypotheses related to effects of renesting, human …
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MALLARD NESTING ECOLOGY IN THE GREAT LAKES
… variables on survival rate of mallard nests (DSR) at local and landscape-level scales (2 m and 2-, 5-, and 10-km radii from nest). Nest success (0.156 ± 1.420) varied regionally from a low of 0.101 in Wisconsin to a high of 0.247 in Michigan, and was higher in forested landscapes (21.7 - …
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MALLARD NESTING ECOLOGY IN THE GREAT LAKES
… variables on survival rate of mallard nests (DSR) at local and landscape-level scales (2 m and 2-, 5-, and 10-km radii from nest). Nest success (0.156 ± 1.420) varied regionally from a low of 0.101 in Wisconsin to a high of 0.247 in Michigan, and was higher in forested landscapes (21.7 - …
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The impact alteration of X-ray source subject projection geometry has on the ability to detect demineralisation in occlusal cavities using digital subtraction radiography: an in-vitro study
… and digital subtraction radiography (DSR) has been demonstrated to be more accurate and reproducible compared to pairwise comparison of radiographs. The aim of this research project was to investigate in-vitro, whether alteration of X-ray source subject projection geometry affected the …
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Nouvelle technique d'analyse acoustique pour la reconnaissance vocale dans les transmissions GSM bruitées
… de la reconnaissance de la parole distribuée (DSR: Distributed Speech Recognition) a été introduite par l’Institut Européen des Télécommunications dans son projet AURORA. II a mis en place une méthode normalisée d'analyse acoustique (frontend) pour la reconnaissance de la parole appelée …
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A Digital Transformation Framework for Biopharma Manufacturing
… sector. Using a design science research (DSR) approach combined with Kumar's (2012) seven modes of the design innovation process, the study leverages existing research to determine the critical dimensions of any Dx process. After cross-referencing up-to-date research, the study offers a …
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High-throughput routing for multi-hop wireless networks
… of ETX as a metric for the DSDV and DSR routing protocols, as well as modifications to DSDV and DSR which make them work well with ETX. Measurements taken from a 29-node 802.11b test-bed show that using ETX improves performance significantly over the widely-used minimum hop-count …
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A Design Science Research Framework for building Resilience in South Africa’s National Digital Health Information System: an Ultra-Large-Scale Systems perspective
… This study adopts a Design Science Research (DSR) methodology to develop and evaluate a resilience framework for the NDHIS from an ULSS perspective. Through scoping reviews of ULSS and resilience literature, contextual policy analysis of South African health reform documents, iterative …
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The Redesigning of Thailand’s One-Stop-Service Portal for Business Licensing and Permission
… dissertation utilizes Design Science Research (DSR) to address these issues, focusing on enhancing the system's usability and impact. Through a comprehensive review of business licensing, e-government, and service delivery transformation theories, together with the insightful and direct …
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Building a Cybersecurity Compliance Index of Capabilities to Explore Strategies and Trends That Enhance Decision Making in Organizations
… Standards. The Design Science Research (DSR) approach was used to design the proposed CCI framework. The DSR was considered appropriate because it enables the creation and evaluation of artifacts to solve immediate problems faced by decision-makers. The proposed CCI framework was …
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