3,271 research outputs found

    An Assessment of Avian Populations Within the FAP 431 Project Area, Cook, Dupage, and Will Counties, Illinois

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    Final Report, issued June, 1989Report issued on: June 1989INHS Technical Report prepared for Ilinois Department of Transportation, Bureau of Location and Environmen

    The treatment of mitochondrial myopathies and encephalomyopathies

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    AbstractThis paper briefly summarizes the results of a long-term, open pharmacotherapy trial in 16 patients with well-characterized mitochondrial disease. Outcome measures included repeated clinical evaluation, 31P-NMR spectroscopy and near-infrared spectroscopy. Treated patients appeared to survive longer with less functional disability and medical complications than typically seen in clinical practice

    Comparison of adult intensive stuttering programs.

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    Fault Detection, Isolation and Restoration Test Platform Based on Smart Grid Architecture Model Using Intenet-of-Things Approaches

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    © 2018 IEEE. To systematically shift existing distribution outage management paradigms to smart and more efficient schemes, we need to have an architectural overview of Smart Grids to reuse the assets as much as possible. Smart Grid Architecture Model offers a support to design such emerging use cases by representing interoperability aspects among component, function, communication, information, and business layers. To allow this kind of interoperability analysis for design and implementation of Fault Detection, Isolation and Restoration function in outage management systems, we develop an Internet-of-Things-based platform to perform real time co-simulations. Physical components of the grid are modeled in Opal-RT real time simulator, an automated Fault Detection, Isolation and Restoration algorithm is developed in MATLAB and an MQTT communication has been adopted. A 2-feeder MV network with a normally open switch for reconfiguration is modeled to realize the performance of the developed co-simulation platform

    Real-Time Control of Power Exchange at Primary Substations: An OPF-Based Solution

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    Nowadays, integration of more renewable energy resources into distribution systems to inject more clean en- ergy introduces new challenges to power system planning and operation. The intermittent behaviour of variable renewbale resources such as wind and PV generation would make the energy balancing more difficult, as current forecasting tools and existing storage units are insufficient. Transmission system operators may withstand some level of power imbalance, but fluctuations and noise of profiles are undesired. This requires local management performed or encouraged by distribution system operators. They could try to involve aggregators to exploit flexibility of loads through demand response schemes. In this paper, we present an optimal power flow-based algorithm written in Python which reads flexibility of different loads offered by the aggregators from one side, and the power flow deviation with respect to the scheduled profile at transmission-distribution coupling point from the other side, to define where and how much load to adjust. To demonstrate the applicability of this core, we set-up a real- time simulation-based test bed and realised the performance of this approach in a real-like environment using real data of a network. © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works

    Lean And RFID: Friends Or Foes?

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    The Lean Manufacturing principles and methodology seek to eliminate waste from systems.  Many of the lean techniques emphasize simplicity.  For example, 5S (sort, set in order, shine, standardize, and sustain) and visual workplace management strive to organize and maintain the workplace so that it is easy to identify, find, and count items.  Visual signals such as Kanbans are used to time the movement of inventory.  The most basic utility of radio frequency identification (RFID) is to provide timing and location information.  Most RFID systems provide data that indicates when an item has passed by a reader.  As long as it is known where the reader was at the time of the read, location information is also available.  Readers are placed strategically so that after the read, the item’s location is known to be within a defined area.  Additionally, real time locator systems (RTLS’) use an array of readers to triangulate a more precise location for the item.  Implementation of RFID systems is being driven primarily by large retailers and the Department of Defense (DOD).  They are requiring their suppliers to attach RFID tags to the items they supply.  However, it has been noted that suppliers who just “slap and ship” tags will find RFID to be an added expense.  Suppliers who use RFID tags to improve their inventory and production management will find RFID to be an investment with a fairly short payback.  This article will explore the relationship between RFID and Lean Manufacturing.  Are RFID and Lean competitive or compatible?  Does RFID improve Lean systems or do Lean systems improve RFID
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