The increasing penetration of power electronics in power grids significantly raises the computing requirements in a real-time (and/or fast) simulation of the power grid. The real-time simulation is an enabler for eval...
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ISBN:
(数字)9781728193878
ISBN:
(纸本)9781728193878
The increasing penetration of power electronics in power grids significantly raises the computing requirements in a real-time (and/or fast) simulation of the power grid. The real-time simulation is an enabler for evaluating controllers, protection systems, new equipment, and twinning. In this paper, emerging computing architectures such as tensor processing units (TPU), neural/neuromorphic processing units (NPU), and quantum processing units (QPU) are introduced and characterized for the real-time (and/or fast) simulation of power electronics-dominated power grids. The metrics and the process to characterize emerging computing architectures to perform real-time (and/or fast) simulations of future power grids with power electronics are discussed. Three of the emerging computing units are characterized based on these metrics and the process developed. This characterization will enable identification and comparison of emerging computing architectures that can perform real-time (and/or fast) simulation of future power grids.
A metric and structure of computing 2020 is proposed in the form of Top 12 Technology Trends, which will influence on investment in science, education and industry in developing countries. The primary social and techn...
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ISBN:
(纸本)9781728155661
A metric and structure of computing 2020 is proposed in the form of Top 12 Technology Trends, which will influence on investment in science, education and industry in developing countries. The primary social and technological problem of the protection of society and critical facilities through the creation of Global Intelligent Cyber Security is formulated. The axioms of the constructive formation of developing countries on the basis of the adoption of moral relations are formulated. Models, methods and algorithms of cyber-social computing are proposed that are focused on processing big data, searching for keywords and test fragments. New characteristic equations of similarity - differences between the processes and phenomena are synthesized for the exact information retrieval by keywords in cyber-physical space. A computing model of the development of the Universe is formulated, where the binary interactions of entities and forms are harmonic functions of the phase state. A structure of interactive computing of the creative process based on a metric assessment of the development status with world achievements is proposed.
Computers have become an inherent part in everyday life due to its power of automated and fast computing. With the discovery of transistors in 1947 at Bell Labs, era of electronic computing started, that took a new sh...
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ISBN:
(纸本)9781509061709
Computers have become an inherent part in everyday life due to its power of automated and fast computing. With the discovery of transistors in 1947 at Bell Labs, era of electronic computing started, that took a new shape with Moore's law in 1965. Even with its wide applicability, this electronic computing has a disadvantage of executing all instructions sequentially. Hence for problems requiring exhaustive brute-force search, with sufficiently large search-space, conventional computer may take even years to solve. Also, due to several other factors, such as power requirement, size of transistors on the Integrated Circuits etc., the conventional computing is approaching a barrier, thus giving rise to several non-conventional computing techniques, such as Quantum computing, DNA computing, Membrane computing etc. Among these different non-conventional computing techniques, DNA computing proves to be a better alternative for solving the problems requiring exhaustive brute-force search, due to its inherent parallelism and massive storage capacity. In this article, with an introduction to DNA computing and its models, its strength has been discussed. Then several areas in which DNA computer can be applied successfully has been discussed.
Recent years have witnessed a rapid growth in the domain of Internet of Things (IoT). This network of billions of devices generates and exchanges huge amount of data. The limited cache capacity and memory bandwidth ma...
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ISBN:
(纸本)9781450349277
Recent years have witnessed a rapid growth in the domain of Internet of Things (IoT). This network of billions of devices generates and exchanges huge amount of data. The limited cache capacity and memory bandwidth make transferring and processing such data on traditional CPUs and GPUs highly inefficient, both in terms of energy consumption and delay. However, many IoT applications are statistical at heart and can accept a part of inaccuracy in their computation. This enables the designers to reduce complexity of processing by approximating the results for a desired accuracy. In this paper, we propose an ultra-efficient approximate processing in-memory architecture, called APIM, which exploits the analog characteristics of non-volatile memories to support addition and multiplication inside the crossbar memory, while storing the data. The proposed design eliminates the overhead involved in transferring data to processor by virtually bringing the processor inside memory. APIM dynamically configures the precision of computation for each application in order to tune the level of accuracy during runtime. Our experimental evaluation running six general OpenCL applications shows that the proposed design achieves up to 20 x performance improvement and provides 480 x improvement in energy-delay product, ensuring acceptable quality of service. In exact mode, it achieves 28 x energy savings and 4.8 x speed up compared to the state-of-the-art GPU cores.
Previous studies have proposed a cyclic ductile fracture model by applying the void growth model and an established rule in incremental form, in which only a monotonic tensile coupon test is required to calibrate the ...
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Previous studies have proposed a cyclic ductile fracture model by applying the void growth model and an established rule in incremental form, in which only a monotonic tensile coupon test is required to calibrate the parameters of the fracture model and the corresponding plasticity models. The model parameters were deduced from small-scale hourglass steel coupons, but not from large-scale specimens. In practice, however, ductile fracture after the occurrence of local buckling has been observed in steel members during recent huge earthquakes. This paper aims to establish a simulation method for the postbuckling cracking process on the basis of formerly proposed fracture and plasticity models. Experimental results demonstrate that the ultimate behaviors of heat-treated square hollow section (SHS) stub columns associated with plate buckling and ductile fracture under cyclic loading can be simulated with favorable accuracy. (C) 2014 American Society of Civil Engineers.
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