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.
Results
Showing 1 to 20 of 995 for “"EDT"”.
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Optimal Electrodynamic Tether Phasing and Orbit-Raising Maneuvers
… for a point-mass electrodynamic tether (EDT) performing phasing and orbit-raising maneuvers. An EDT is a conductive tether on the order of 20 km in length and uses a Lorentz force to provide propellantless thrust. We develop the optimal equations of motion using Pontryagin's Minimum …
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'Out of hours' social work : a study of local authority emergency duty
… then is local authority emergency duty team (EDT) social work. From a variety of perspectives and using a range of methods the researcher examines the past, present and potential future nature of out of hours social work. As an EDT worker and researcher simultaneously, the author highlights …
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Enhancing the efficiency and security of NB-IoT: from battery depletion to energy optimization
… research. Additionally, this thesis proposes EDT+ (Early Data Transmission Plus), a new NB-IoT communication mode aimed at further reducing energy consumption while increasing the network’s performance. EDT+ leverages the static nature of many IoT applications, minimising the overhead …
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Problem generator system in Engineering Design Tutor
… generator used in the Engineering Design Tutor (EDT) system to provide multi-step problem generation capability. The EDT system allows the user to specify a set of design concepts from a specific domain, based on which a problem tree is generated. All the possible solution paths in the tree are …
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Orbital Debris Removal Technologies: A Hybrid Electrodynamic Tether and Ion Beam Shepherd Satellite Design for Fuel Efficient Contactless Debris Removal
… impact to satellites. Electrodynamic tethers (EDT) as well as their control strategies, ion-beam shepherds (IBS), and tradition thruster methods are investigated for effectiveness and feasibility. Hybrid combinations of these technologies are investigated in hopes of reducing time and cost of …
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Machine learning methods based on diffusion processes
… the effective dissimilarity transformation (EDT) on empirical dissimilarity hyperspheres is proposed and studied using synthetic and gene expression data sets. Iterating the EDT turns a static data distribution into a dynamical process purely driven by the empirical data set geometry and …
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Dynamics of an Electrodynamic Tether System in a Varying Space-Plasma Environment
… of the behavior of an electrodynamic tether (EDT) system in Earth's ionosphere. An electrodynamic tether system consists of two satellites connected by a long tether that generates current to produce either power or thrust via the system's electromagnetic interaction with the space …
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Information And Democracy: Lessons From The Hacktivists
… Electronic Disturbance Theater (EDT), and Anonymous—through the lens of three different democratic traditions: the “epistemic,” “aesthetic,” and “radical.” Emblematic of the epistemic tradition, WikiLeaks’ hacktivism foregrounds the role of information as truth to democracy. By …
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Self Balanced Bare Electrodynamic Tethers. Space Debris Mitigation and other Applications
The research on electrodynamic tethers (EDT) has been a fruitful field since the 70’s. This technology has been developed thanks to both theoretical studies and demonstration missions. During this period, several technical issues were identified and overcome. Among those problems, two of them would …
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Synthesis of new substituted organosulfur donors for the preparation of conductive and multifunctional materials
… main type of compounds: i) bridged dimeric BEDT-TTF donors (chapter 2), ii) enantiopure substituted EDT-TTF donors with hydrogen bonding functionalities (chapter 3) and iii) BEDT-TTF substituted ligands and their ability to form multifunctional materials (chapter 4). In chapter 2 the …
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STUDY OF THE SELECTIVE GROWTH OF THIN FILMS: EFFECTS OF A THIRD SPECIES IN ATOMIC LAYER DEPOSITION
… and/or reversible adsorption. Ethanedithiol (EDT) was used as one of the co-adsorbate species for intrinsic difference in affinities of thiol functional group towards SiO2 and Cu surfaces. Under an appropriate partial pressure of EDT, chemisorption of a metal precursor, …
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Mixed-valence bimetallic dithiolates of iron, cobalt, and nickel and their relevance to the hydrogenases
… the dinickel compounds Cp2Ni2(pdt) and Cp2Ni2(edt) (edt = 1,2-ethanedithiolate) have a thermally accessible triplet state, a feature which has been proposed in some DFT analyses of the [NiFe]-H2ase active site. Another consequence of the close proximity of these metal centers is a facile one …
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Information-theoretic bounds in learning algorithms
… We construct an empirical difference test (EDT), which has low computational complexity. Moreover, we provide an approximation method to set the threshold of the EDT to meet the false alarm constraint. Experiments with linear regression and logistic regression are conducted to validate the …
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Estudio de viabilidad y planificación de un servicio de reparación colaborativo basado en la economía circular: un enfoque de gestión de proyectos
… incluye la estructura de desglose del trabajo (EDT), cronograma con diagrama de Gantt, estimación de costes de inversión y operación, planes de gestión de recursos humanos, comunicaciones, riesgos y adquisiciones, así como la selección justificada de herramientas TIC (GLPI para ticketing y …
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Software and hardware improvements for digital solar magnetograph system
… consists of a high-speed 64x64 CCD camera, an EDT image grabbing board, an agile mirror, a D/A board and a Sun Ultra-30 workstation. Based on the same hardware, digital magnetograph system has been built and tested. The novel correlation tracker system does not use traditional FFT hardware and …
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Miniaturized Antenna for Satellite Broadband Application
… in-house. Simulations were conducted with ANSYS EDT (HFSS), which agree with the measured results.
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A study to evaluate the special education due process hearing requirements in Virginia
… in matters related to provisions of special edt!cation and related services. Provisions within the law provide for dispute resolution between parents and LEA through an impartial due process hearing. State education agencies are responsible to ensure these and other requirements in the law …
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The role of internet-based technology in customer satisfaction in the banking sector: empirical evidence from Edo State, Nigeria
… the Expectancy Disconfirmation Theory (EDT) and Affect Theory have been used to underpin the study of CS, while Kahn’s theory of engagement is used in support of CFEBEH. The Job Demands- Resources (JD-R) model has been used as the overarching theory underpinning this research …
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Image watermarking, steganography, and morphological processing
… to obtaining Euclidean distance transformation (EDT) in just two scans of image. The shortest path can be extracted based on distance maps by tracking minimum values. In order to record the motion path, a new chain-code representation is developed to allow forward and backward movements. By …
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Extracting room acoustic parameters from received speech signals using artificial neural networks
… Reverberation Time (RT), Early Decay Time (EDT) and Speech Transmission Index (STI) from received speech signals. Utilising naturalistic sounds - speech - as excitations, the developed methods circumvent the use of unpleasant noisy test signals and therefore measurements can be made in …
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