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 24 for “"Laws of physics"”.
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A Development of a New Approach to the Static Axially Symmetric Einstein- Maxwell Field.
Principle of General CovarianceSpecial relativity and classical mechanics share the principle of invariance of the laws of physics in all inertial reference frames. They differ in that the postulate of the constancy of the velocity of light holds in special relativity. On the other hand, the …
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Spin-orbit coupled Bose gases
… way, as well as to generate new states of matter that have not been found in the real world but the existence of which does not contradict the fundamental laws of physics. Ultracold atoms form a perfect system to realize idealized models and study physical mechanisms that stand out …
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Anomaly Detection for Control Centers
… the power system’s operation and control are often made from the control center. These control actions are made possible through SCADA communication. This capability however makes the power system vulnerable to cyber attacks. Most of the decisions taken by the control center dwell on the …
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Learning with classical and quantum information constraints
… framework for proving the fundamental limit of information-constrained learning and designs sample-optimal algorithms under settings of practical interest. We consider various information constraints, including privacy and communication constraints on classical computers, and inherent …
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A Study of the Present Status and the Trends of General Science in the High Schools of the State of Iowa
The Iowa Association of Science Teachers meeting in conjunction with the Iowa State Teachers Association, in Des Moines, Iowa, on November 5 and 6, 1936, set as its objective the improvement of science education in Iowa. To accomplish this objective, plans were made to determine what standards the …
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Realistic natural atmospheric phenomena and weather effects for interactive virtual environments.
Clouds and the weather are important aspects of any natural outdoor scene, but existing dynamic techniques within computer graphics only offer the simplest of cloud representations. The problem that this work looks to address is how to provide a means of simulating clouds and weather features such …
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Observability of user-interfaces for linear hybrid systems under collaborative control
… the complex system structure in the form of an interface. The human can observe system outputs and make control inputs via this interface. Problems with human-automation interaction occur when the interface does not provide enough information or provides misinformation about the underlying …
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The Security of Self-Differencing Avalanche Photodiodes for Quantum Key Distribution
… on single photons. This security is based on the laws of physics and as such can never be broken in theory. However, in practice, components do not always behave according to their theoretical models and these deviations can be exploited by an eavesdropper. In recent years, exposing loopholes in …
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Towards realistic interactive sand : a GPU-based framework
… such as deserts and beaches. These terrains often contain large quantities of granular material, including sand, soil, rubble, and gravel. Allowing other environmental elements, such as trees or bodies of water, as well as players, to interact naturally and realistically with sand, is an …
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The law is a factish
Drawing upon the work of Bruno Latour, this dissertation defends the thesis that the law is a factish: an indivisible blend of social and natural reality. The dissertation develops, in Latour's terms, a "non-modern" framework from which it draws, in turn, the philosophical foundations for a theory …
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Spatial effects and experience through reflectivity
… on transparency has centered on the idea of layering spaces, light construction, and perceptions of different spatial relationships and has a long history from modernism to the present. This thesis proposes to question received notions of glass as a transparent material and instead focus …
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The Reasonable Effectiveness of Mathematics in the Natural Sciences
One of the most unsettling problems in the history of philosophy examines how mathematics can be used to adequately represent the world. An influential thesis, stated by Eugene Wigner in his paper entitled "The Unreasonable Effectiveness of Mathematics in the Natural Sciences," claims that "the …
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Measuring Compliance to the International Telecommunication Union’s Geosynchronous Orbital Assignments
… orbit around the Earth obey more than just the laws of physics; a network of rules, regulations, and guidelines govern their activities, too. In geosynchronous orbit (GEO), countries coordinate their satellite missions to prevent harmful interference in the radio-frequency spectrum and ensure …
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Methods for Efficient Reinforcement Learning in Novel Environments
… learning, this progress has led to the creation of agents that outperform humans in games such as Atari, Dota 2, and Go. However, these systems often require massive amounts of data and computational resources to learn to perform a single task. When deploying such systems in the real world, it is …
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Methods for Efficient Reinforcement Learning in Novel Environments
… learning, this progress has led to the creation of agents that outperform humans in games such as Atari, Dota 2, and Go. However, these systems often require massive amounts of data and computational resources to learn to perform a single task. When deploying such systems in the real world, it is …
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Scientific deep learning for efficient modeling and uncertainty quantification in engineering systems
… increasingly common in the analysis and design of engineering systems. On the one hand, many science and engineering problems require repetitive simulation runs of a model with different input values. Examples of these problems include design optimization, model calibration, sensitivity …
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Divergent Criticality – A Mechanism of Neural Function for Perception and Learning
… new value. Though many theoretical accounts of how we might achieve such selectionist ends have been explored – how ‘perception’ and ‘learning’ resonate with life’s challenges and opportunities, to date, no explanation has yet been able to naturalise such perception adequately in the …
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Searching for deep understanding : implementing a mechanical engineering design process in K9-K12 physics classrooms to identify and improve levels of physics intuition and content
This experiment tested the level of Physics content knowledge of various K9-K12 Physics students in a local Boston high school by having them implement a mechanical engineering design process to solve open-ended design problems. Using MIT's 2.009 and 2.72 Mechanical Engineering project-based …
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Development and Applications of Neuromusculoskeletal Modeling Software for Personalized Treatment Design
… have been associated with a decreased quality of life, an increased risk of serious secondary health conditions (e.g., heart disease, diabetes), and an increase in economic burden (e.g., unemployment, health care). Therefore, improving treatment for walking impairment conditions is a high …
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Design techniques for Power-Efficient Delta-Sigma Analogue-to-Digital Converters
… and noise-limited, the power efficiency of the former is benchmarked by the Walden Figure-of-Merit (FoMW), and the latter, by the Schreier Figure-of-Merit (FoMS). Technology scaling over the past decades has indicated that FoMS, in noise-limited ADCs, captures more precisely the power …
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