The Experts below are selected from a list of 48672 Experts worldwide ranked by ideXlab platform
Ferruccio Renzoni - One of the best experts on this subject based on the ideXlab platform.
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non destructive structural imaging of steelwork with atomic magnetometers
Applied Physics Letters, 2018Co-Authors: P Bevington, R Gartman, W Chalupczak, Cameron Deans, Luca Marmugi, Ferruccio RenzoniAbstract:We demonstrate the imaging of ferromagnetic carbon steel samples and we detect the thinning of their profile with a sensitivity of 0.1 mm using a Cs radio-frequency atomic magnetometer. Images are obtained at room temperature, in magnetically unscreened environments. By using a dedicated arrangement of the setup and active compensation of background fields, the magnetic disturbance created by the samples' magnetization is compensated. Proof-of-concept demonstrations of non-destructive structural evaluation in the presence of concealing conductive barriers are also provided. The relevant impact for steelwork inspection and health and Usage Monitoring without disruption of operation is envisaged, with direct benefit for industry, from welding in construction to pipeline inspection and corrosion under insulation in the energy sector.
Michael Pecht - One of the best experts on this subject based on the ideXlab platform.
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environment and Usage Monitoringof electronic products for health assessment and product design
Quality Technology and Quantitative Management, 2007Co-Authors: Nikhil M Vichare, Peter Rodgers, Valerie Eveloy, Michael PechtAbstract:AbstractThe life-cycle environmental and Usage conditions of a product or system can be monitored and analyzed to assess its on-going health, provide advance warning of failure, and provide information to improve the design and qualification of fielded and future products. The challenge lies in the implementation of this method in application conditions. This paper presents methods to effectively collect and analyze life-cycle environmental and Usage data for in-situ health assessments. An integrated hardware-software micro-programmable module for health and Usage Monitoring of electronic products in their application environment is presented. The hardware incorporates local sensors, and on-board processing power using embedded software. These data processing capabilities are intended to enable immediate and localized processing of the raw sensor data to reduce the power and memory consumption anticipated during load Monitoring. Guidelines are also provided to develop a life cycle Monitoring plan, that en...
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in situ temperature measurement of a notebook computer a case study in health and Usage Monitoring of electronics
IEEE Transactions on Device and Materials Reliability, 2004Co-Authors: Nikhil M Vichare, Peter Rodgers, Valerie Eveloy, Michael PechtAbstract:Reliability prediction methods do not generally account for the actual life cycle environment of electronic products, which covers their environmental, operating and Usage conditions. Considering thermal loads, thermal management strategies still focus on a design for continuous operation that is often determined based on an accumulation of worst-case assumptions. Health Monitoring is a method of assessing the reliability of a product in its actual application conditions. A case study in health and Usage Monitoring of electronic products is presented for a commercial notebook computer. Internal temperatures were dynamically monitored in situ and statistically analyzed during all phases of the life cycle, including Usage, storage, and transportation. The effects of power cycles, Usage history, CPU computing resources Usage, and external thermal environment on peak transient thermal loads were characterized. Such monitored life cycle temperature data could be applied in a life consumption Monitoring methodology, to provide damage estimation and remaining life prediction due to specific failure mechanisms influenced by temperature. These findings could contribute to the design of more sustainable, least-energy consumption thermal management solutions.
P Bevington - One of the best experts on this subject based on the ideXlab platform.
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non destructive structural imaging of steelwork with atomic magnetometers
Applied Physics Letters, 2018Co-Authors: P Bevington, R Gartman, W Chalupczak, Cameron Deans, Luca Marmugi, Ferruccio RenzoniAbstract:We demonstrate the imaging of ferromagnetic carbon steel samples and we detect the thinning of their profile with a sensitivity of 0.1 mm using a Cs radio-frequency atomic magnetometer. Images are obtained at room temperature, in magnetically unscreened environments. By using a dedicated arrangement of the setup and active compensation of background fields, the magnetic disturbance created by the samples' magnetization is compensated. Proof-of-concept demonstrations of non-destructive structural evaluation in the presence of concealing conductive barriers are also provided. The relevant impact for steelwork inspection and health and Usage Monitoring without disruption of operation is envisaged, with direct benefit for industry, from welding in construction to pipeline inspection and corrosion under insulation in the energy sector.
Omary Shaban - One of the best experts on this subject based on the ideXlab platform.
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A two-way electricity Usage Monitoring system for decentralised solar mini-grids in Tanzania
NM-AIST, 2020Co-Authors: Omary ShabanAbstract:A Dissertation Submitted in Partial Fulfillment of the Requirements for the Degree of Master’s in Information and Communication Science and Engineering of the Nelson Mandela African Institution of Science and TechnologyDecentralised solar mini-grids have been identified as a cost-effective solution towards having sustainable electrification efforts in Tanzania, particularly to areas out of the government’s immediate plans for national grid extension. Nonetheless, access to information on power consumption to both mini-grid companies and consumers has been a challenge for most of the current decentralised solar mini-grid systems. Several studies, mostly carried out outside Africa, have attempted to address the problem, however, due to the technology used, features and economic implications, the proposed solutions do not suit the local market. With the rapid penetration of information and communication technologies services in Tanzania, access to and the use of the internet is becoming increasingly affordable for the majority of communities. This study therefore aimed at improving consumer and utility companies' access to electricity consumption information in decentralised solar mini-grids in Tanzania. This was achieved by developing a two-way electricity Usage Monitoring system that enhances consumers awareness towards economic utilisation of the available electrical power resources. The proposed system uses Long Range technology to create a private Low Power Wide Area Network around the mini-grid centre while General Packet Radio Service network is used to transmit power consumption data from the mini-grid centre to the cloud server. The proposed system can help consumers to have informed-Usage of electrical power and thus adjust their consumption behaviour to save unnecessary costs. The system also offers a cost-effective solution for the mini-grid companies to track the demand and supply status of the available power resources. The system also acts as a linkage between mini-grid companies and consumers which improves customer experience. Moreover, this study contributes to the existing literature by proposing an improved method to enhance equal access to the information regarding power consumption between utilities and consumers by using Long Range as a private wide area network for the mini-grid centres
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Web-Based Two-Way Electricity Monitoring System for Remote Solar Mini-Grids
'MECS Publisher', 2019Co-Authors: Omary Shaban, Sam, Anael E.Abstract:This research article published by Modern Education and Computer Science Press, 2019Electricity Usage Monitoring systems play a vital role towards raising energy utilization awareness for consumers. Existing solar mini-grid infrastructure, however, lacks a user-friendly two-way platform to allow consumers to access information about electricity consumption. This paper proposes a cloud-based, two-way energy Usage Monitoring system that will allow both utility companies and consumers to access energy consumption data in a user-friendly way through a web platform. The system requirements were collected via questionnaires, interviews, and observations conducted at two solar mini-grids centres located at Arusha and Kilimanjaro regions in Tanzania. The system uses a Low Power Area Network (LPWAN) and the existing GPRS network to monitor electricity consumption data between smart meter units and the cloud server. Also, a virtual bill payment module and Usage status feedback functionality have been integrated into the system to increase awareness of the cost-effective use of electricity and hence, achieve the sustainability of solar mini-grids. By using both white-box and black-box system testing approaches, findings show that the system will not only raise awareness among customers about the economical Usage of electricity, but it can also be used by mini-grid companies as a source of data to determine current and future energy demands to minimize large investment costs
Nikhil M Vichare - One of the best experts on this subject based on the ideXlab platform.
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environment and Usage Monitoringof electronic products for health assessment and product design
Quality Technology and Quantitative Management, 2007Co-Authors: Nikhil M Vichare, Peter Rodgers, Valerie Eveloy, Michael PechtAbstract:AbstractThe life-cycle environmental and Usage conditions of a product or system can be monitored and analyzed to assess its on-going health, provide advance warning of failure, and provide information to improve the design and qualification of fielded and future products. The challenge lies in the implementation of this method in application conditions. This paper presents methods to effectively collect and analyze life-cycle environmental and Usage data for in-situ health assessments. An integrated hardware-software micro-programmable module for health and Usage Monitoring of electronic products in their application environment is presented. The hardware incorporates local sensors, and on-board processing power using embedded software. These data processing capabilities are intended to enable immediate and localized processing of the raw sensor data to reduce the power and memory consumption anticipated during load Monitoring. Guidelines are also provided to develop a life cycle Monitoring plan, that en...
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in situ temperature measurement of a notebook computer a case study in health and Usage Monitoring of electronics
IEEE Transactions on Device and Materials Reliability, 2004Co-Authors: Nikhil M Vichare, Peter Rodgers, Valerie Eveloy, Michael PechtAbstract:Reliability prediction methods do not generally account for the actual life cycle environment of electronic products, which covers their environmental, operating and Usage conditions. Considering thermal loads, thermal management strategies still focus on a design for continuous operation that is often determined based on an accumulation of worst-case assumptions. Health Monitoring is a method of assessing the reliability of a product in its actual application conditions. A case study in health and Usage Monitoring of electronic products is presented for a commercial notebook computer. Internal temperatures were dynamically monitored in situ and statistically analyzed during all phases of the life cycle, including Usage, storage, and transportation. The effects of power cycles, Usage history, CPU computing resources Usage, and external thermal environment on peak transient thermal loads were characterized. Such monitored life cycle temperature data could be applied in a life consumption Monitoring methodology, to provide damage estimation and remaining life prediction due to specific failure mechanisms influenced by temperature. These findings could contribute to the design of more sustainable, least-energy consumption thermal management solutions.
