this work-in-progress paper describes the implementation of software-defined radio-based experiments for ELE 483: Communications Engineering at the University of Southern Maine. Starting the spring of 2024 this course...
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6G has defined ultra-massive machine type communication (umMTC) as a key scenario in response to the advancement of IoT technologies. the presence of a large number of machine-type communication devices (MTCDs) in umM...
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the development of e-Science (cyberScience, Grid, etc.) is starting to become a reality with formalised data resources, services on demand, domain-specific search engines, digital repositories, etc. Increasingly STM 1...
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ISBN:
(纸本)9783540730835
the development of e-Science (cyberScience, Grid, etc.) is starting to become a reality with formalised data resources, services on demand, domain-specific search engines, digital repositories, etc. Increasingly STM 1 information will be contained in compound XML documents, representing scientific communication (articles, theses, repository entries, etc.). In physical sciences such as chemistry, materials science, engineering, physics, earth sciences, these "datuments" [1] normally contain hypertext, graphics, tables, graphs and numerical data, mathematical objects and relationships. In addition they may also contain domain-specific content such as chemical formula and reactions, thermodynamic and mechanical properties, electric, magnetic and optical properties. Among the domain-specific languages, CML (Chemical Markup Language) is the oldest and broadest, and is now being actively used for publishing by the Royal Society of Chemistry (Project Prospect [2]) which gives an idea of what chemistry in datuments can look like. CML has had to develop the domain-specific objects (molecules, atoms, bonds, spectra, crystallography, etc.) and the relationships between them. However, due to the text-based nature of early XML, it has also had to design an implement domain-independent infrastructure which can support much of physical science. Originally called STMML [3] it supports data types (float, integer, complex, etc.), data structures (arrays, lists, matrices, etc.), geometrical concepts (points, planes, lines, etc.) and scientific units of measurement. In addition CML bases much of its flexibility one usercreated dictionaries (ontologies) which are hyperlinked from objects in the datuments. It is now clear that the domain-independent parts of CML (and by extension some other markup languages in physical science) are loosely isomorphic with approaches in MathML and OMDOC. If a synthesis can be found, then CML can happily forget about the "non-chemistry" knowing
Power consumption is an important design parameter for battery operated devices, and an especially sensitive issue in embedded Java systems. this paper presents a solution to reduce leakage power consumption of the he...
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Analysis of periodic structures in time domain is an increasingly important tool in the design of a wide range of novel structures. Time Domain Integral Equation based methods provide an accurate means of solving tran...
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Transparent Adaptation (TA) technology is a strategy to transform single-user applications into groupware system without modifying the original source codes. there are two key issues of TA technology: data model trans...
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Transparent Adaptation (TA) technology is a strategy to transform single-user applications into groupware system without modifying the original source codes. there are two key issues of TA technology: data model transformation and operation adaptation. the paper introduces to map the two dimensional CAD document into layered document model, modifies AST consistency maintenance strategy to layer-AST to adapt to the new model; gives primitive operation definitions in CAD environments, and uses application APIs to capture the interface operations. Efficiency analysis of the layer-AST is also given, showing the improved performance of the algorithm.
In this paper, we propose to design a Convolutional Neural Network (CNN) accelerator suitable for application in Internet of things (IoT) devices. the CNN accelerator is trained on Modified National Institute of Stand...
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Due to the increasing popularity of smartphones, many people are now equipped with both a smartphone and at least one desktop (or laptop) computer. Although the two computing devices are used for similar purposes (e.g...
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ISBN:
(纸本)9781538617625
Due to the increasing popularity of smartphones, many people are now equipped with both a smartphone and at least one desktop (or laptop) computer. Although the two computing devices are used for similar purposes (e.g., email, web browsing), they are often both kept on for the user's convenience, despite only one device is actively used at a lime. therefore, if one of the two computing devices can be put into an energy-saving mode when the other one is in use, a significant amount of energy can he saved for boththe phone and the desktop. In this paper, we propose CoSmart, a light-weight solution that coordinates the smartphone withthe desktop for joint energy savings. CoSmart dynamically degrades the smartphone to a feature phone with only basic GSM functions when the user is detected to be withthe desktop, in order to save both computation and idle energy. the desktop is then put into sleep for energy savings when the user leaves it, while the phone can he turned back to a smartphone, such that the user can continue the operation with seamless task migration. there are several research challenges in the design of CoSmart. which include 1) predicting whether the user would stay long enough withthe desktop to offset the migration overheads, and 2) determining the best time point for task migration that can result in the most energy savings. To this end, we propose a novel algorithm for dynamic idle lime length prediction, and model joint energy savings as an optimization problem for the most energy savings. A prototype of CoSmart is implemented in Android and evaluated using different real user traces and popular apps. Results show CoSmart can achieve, on average, 61.3% energy savings for the smartphone and 46.7% energy savings for the desktop, which outperforms other baselines by as much as 17.2% to 19.0%.
In this paper we describe a parameterizable FPGA-based implementation of a sigma-delta converter used in a 96kHz audio DAC. From specifications of the converter’s input bitwidth and data sampling frequency, VHDL gene...
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