58 research outputs found

    A VIRTUAL SUB-DOMAIN ROUTING MECHANISM TO IMPROVE ROUTING EFFICIENCY FOR LOW-POWER AND LOSSY NETWORKS

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    Techniques are provided herein to optimize the routing path between normal nodes and a fog node in a non-storing mesh network. The transmission between normal nodes and the application fog node is more efficient and little additional calculation or storage is required on the normal nodes

    GRAI-ICE Model Driven Interoperability Architecture for Developing Interoperable ESA

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    International audienceThis paper presents GRAI-ICE Model Driven Interoperability Architecture (MDI) which is developed based on MDA (Model Driven Architecture) of OMG and some initial works performed in INTEROP NoE. This MDI architecture aims at supporting the development of changeable on-demand and interoperable ESA (Enterprise Software Application). The architecture defined five modelling levels, i.e., Top CIM, Bottom CIM, Object oriented PIM, Pattern oriented PSM, and Component and configuration oriented CODE. This paper presents in detail core concepts and rational of each modeling level. An application example in nuclear equipment industry is outlined

    CONCURRENT TRANSMISSION MECHANISM TO IMPROVE THROUGHPUT OF BOTTLENECK DEVICES IN LOW-POWER AND LOSSY NETWORKS

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    Techniques are described herein for designing a concurrent channel mechanism to cause mesh network border router devices or key/bottleneck devices to communicate with multiple devices concurrently. This may reduce collision probabilities and thus enhance the scaling ability of a network

    Phosphate Assay Kit in One Cell for Electrochemical Detection of Intracellular Phosphate Ions at Single Cells

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    In this paper, phosphate assay kit in one cell is realized for the electrochemical detection of intracellular phosphate ions at single cells. The components of the phosphate assay kit, including maltose phosphorylase, maltose, mutarotase, and glucose oxidase, are electrochemically injected into a living cell through a nanometer-sized capillary with the ring electrode at the tip. These components react with phosphate ions inside the cell to generate hydrogen peroxide that is electrochemically oxidized at the ring electrode for the qualification of intracellular phosphate ions. An average 1.7 nA charge was collected from eight individual cells, suggesting an intracellular phosphate concentration of 2.1 mM. The establishment in the electrochemical measurement of phosphate ions provides a special strategy to monitor the fluctuation of intracellular phosphate at single cells, which is significant for the future investigation of phosphate signal transduction pathway

    Feature Space Based Business Model Quality Evaluation

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    It is inevitable that there are more or less diversities between business models created by different modelers, thus it is necessary to evaluate and compare them quantitatively to help decision makers discover whose models are pressing much closer to customer requirements. In this paper, a new approach for business model quality evaluation is presented. In order to deal with business models described by varied modeling languages, a unified and extended feature modeling technique is adopted. Quality of a user created model is then measured from two views “completeness” and “soundness” by assessing the distance between the user model and the standard model with the help of feature space as the tools. An example is briefly shown along with each concept and algorithm for illustration. Benefits and deficiencies of our method are briefly concluded for future works

    SPatiotemporal-ENcoded acoustic radiation force imaging of focused ultrasound

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    Neuromodulation technology has provided novel therapeutic approaches for diseases caused by neural circuit dysfunction. Transcranial focused ultrasound (FU) is an emerging neuromodulation approach that combines noninvasiveness with relatively sharp focus, even in deep brain regions. It has numerous advantages such as high precision and good safety in neuromodulation, allowing for modulation of both peripheral and central nervous systems. To ensure accurate treatment targeting in FU neuromodulation, a magnetic resonance acoustic radiation force imaging (MR-ARFI) sequence is crucial for the visualization of the focal point. Currently, the commonly used 2D Spin Echo ARFI (2D SE-ARFI) sequence suffers from the long acquisition time, while the echo planar imaging ARFI (EPI-ARFI) sequence with a shorter acquisition time is vulnerable to the magnetic field inhomogeneities. To address these problems, we proposed a spatiotemporal-encoded acoustic radiation force imaging sequence (i.e., SE-SPEN-ARFI, shortened to SPEN-ARFI) in this study. The displacement at the focal spot obtained was highly consistent with that of the SE-ARFI sequence. Our research shows that SPEN-ARFI allows for rapid image acquisition and has less image distortions even under great field inhomogeneities. Therefore, a SPEN-ARFI sequence is a practical alternative for the treatment planning in ultrasound neuromodulation

    Dynamic organization and methodology for agile virtual enterprises

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