MD SALIM

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Implementation and Field Testing of a Wireless Sensor Network for Infrastructure Monitoring

Journal of Engineering Technology

Applying wireless sensor networks for infrastructure monitoring has gained interest in recent yea... more Applying wireless sensor networks for infrastructure monitoring has gained interest in recent years. Wireless sensor networks can continuously monitor infrastructure condition and report any changes that may lead to failure. The collected data can be used for the analysis of infrastructure life expectancy and safety index, therefore optimizing maintenance procedures for improved cost-effectiveness. This paper discusses the implementation and field test of a wireless sensor network for infrastructure monitoring. A test bed was established in a laboratory to collect the strain information, using both concrete and metal specimens for the experiments, and the wireless sensor network system was implemented in the field to monitor a bridge structure. Issues investigated include practical implementation such as sensor placement, communication distance, operation in a harsh environment, energy efficiency, and battery lifetime for different operation modes. The paper also examines feasibilit...

A hybrid solar-wind power generation system as an instructional resource for industrial technology students

Journal of Industrial Technology, 2000

... to AC power, electrical lighting loads and electrical heating loads, several fuse and junctio... more

Enhance Interdisciplinary Collaboration And Graduate Education By Applying Geospatial Technologies In Practical Applications

2007 Annual Conference & Exposition Proceedings

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Shay or Res as Concomitant of Being in Avicenna

Documenti E Studi Sulla Tradizione Filosofica Medievale, 2001

Global Patterns of Subsurface Microbial Diversity Through Deep Time and Space

AGU Fall Meeting Abstracts, Dec 1, 2019

Artificial-Intelligence-Based Optimization

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Behavior under neutron irradiation of materials intended for the protection of nuclear reactors

TR-611 Wireless Sensor Networks for Infrastructure Monitoring

A good system of preventive bridge maintenance enhances the ability of engineers to manage and mo... more A good system of preventive bridge maintenance enhances the ability of engineers to manage and monitor bridge conditions, and take proper action at the right time. Traditionally infrastructure inspection is performed via infrequent periodical visual inspection in the field. Wireless sensor technology provides an alternative cost-effective approach for constant monitoring of infrastructures. Scientific data-acquisition systems make reliable structural measurements, even in inaccessible and harsh environments by using wireless sensors. With advances in sensor technology and availability of low cost integrated circuits, a wireless monitoring sensor network has been considered to be the new generation technology for structural health monitoring. The main goal of this project was to implement a wireless sensor network for monitoring the behavior and integrity of highway bridges. At the core of the system is a low-cost, low power wireless strain sensor node whose hardware design is optimi...

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Peroneus Longus Tendon Autograft for Anterior Cruciate Ligament Reconstruction: A Safe and Effective Alternative in Nonathletic Patients

Introduction: Anterior cruciate ligament (ACL) is a common injury which has been conventionally m... more Introduction: Anterior cruciate ligament (ACL) is a common injury which has been conventionally managed by various graft reconstruction using bone patellar tendon bone, or quadruple hamstring autograft, to name a few. However, all these grafts are associated with many complications. Lately, peroneus longus tendon (PLT) autograft has shown promising results in this field, although there is still a dearth of data on its use. We, therefore, aimed at carrying out a study to evaluate the functional outcome and knee stability results of ACL reconstruction using PLT graft. Patients and Methods: Patients with a completely torn ACL were included in the study. The PLT was harvested, and graft length, thickness, and harvesting time were noted intraoperatively. Knee stability and functional scores were evaluated clinically and using Lachman test (primarily) and KT-2000 arthrometer and subjectively with International Knee Documentation Committee (IKDC) score at 6, 12, and 24 months (secondary ou...

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Outcome of 6 months MBMDT in MB patients in Bangladesh- preliminary results

Leprosy Review, 2016

Introduction Duration of leprosy treatment remains long and difficult to complete in resource poo... more Introduction Duration of leprosy treatment remains long and difficult to complete in resource poor areas. Studies suggest that shortening duration of therapy for MB patients to 6 months may be possible. Methods New MB patients in 2005 in two NGO projects in Bangladesh were treated with 6 months WHO MB MDT and the rate of relapse and fall in BI on slit skin smear during follow up to date were compared with a control group treated for 12 months the previous year. Results 1612 patients were enrolled in the trial, and the average duration of follow up was over 7 years after diagnosis. During 11,425 PYAR of follow-up, no relapses were detected, by bacteriological or clinical criteria, in the 918 patients in the 6 months MB MDT group, nor in the 694 patients in the control group. Rate of decline of BI in those who were smear positive was not significantly different between groups. Conclusion The data does not suggest that shortening duration of treatment from 2 months to 6 months MDT for MB leprosy patients leads to increased rates of relapse.

Quantum dot-based image sensors for cutting-edge commercial multispectral cameras

Optical Sensing, Imaging, and Photon Counting: Nanostructured Devices and Applications 2016, 2016

This work presents the development of a quantum dot-based photosensitive film engineered to be in... more This work presents the development of a quantum dot-based photosensitive film engineered to be integrated on standard CMOS process wafers. It enables the design of exceptionally high performance, reliable image sensors. Quantum dot solids absorb light much more rapidly than typical silicon-based photodiodes do, and with the ability to tune the effective material bandgap, quantum dot-based imagers enable higher quantum efficiency over extended spectral bands, both in the Visible and IR regions of the spectrum. Moreover, a quantum dot-based image sensor enables desirable functions such as ultra-small pixels with low crosstalk, high full well capacity, global shutter and wide dynamic range at a relatively low manufacturing cost. At InVisage, we have optimized the manufacturing process flow and are now able to produce high-end image sensors for both visible and NIR in quantity.

Software to Simulate and Optimize Asset Management in Constuction and Manufacturing

The Journal of Technology Studies, 2001

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Ultra-low leakage SRAM design with sub-32 nm tunnel FETs for low standby power applications

Micro & Nano Letters, 2016

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A model for production scheduling and sequencing using constraints management and genetic algorithm

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Process-oriented intelligent planning for the fabrication and placement of concrete reinforcement

Reinforced concrete structures constitute a major portion of today's construction. The trend ... more Reinforced concrete structures constitute a major portion of today's construction. The trend towards the use of reinforced concrete is more pronounced in both North America and Europe than in other parts of the world. Increased use of reinforced concrete necessarily requires installation of more and more reinforcing bars (re-bar). This paper presents a concept for process-oriented planning for the fabrication and placement of re-bar. Feature-based frameworks for design and planning are established to allow the use of artificial intelligence (AI) in the development of a CAD-integrated process planning system for the placement of re-bar. A prototype system for feature-based and process-oriented re-bar placement planning is presented. The prototype system is implemented on a PC-486 by integrating AutoCAD, dBASE III PLUS and LEVEL5 OBJECT software. Finally, field testing of the process planning model in a real-world construction project and the results of the study are discussed.

A GIS-Integrated Intelligent System for Optimization of Asset Management for Maintenance of Roads and Bridges

Lecture Notes in Computer Science, 2002

... Gray-Fisher [6], and Vanier [7] have outlined the general case for applying asset management ... more

Kinetic Theory of Gases

SpringerReference

Energy efficiency analysis of wireless sensors used in infrastructure monitoring

2010 2nd International Conference on Mechanical and Electronics Engineering, 2010

This paper discusses the implementation of a wireless sensor network for infrastructure monitorin... more This paper discusses the implementation of a wireless sensor network for infrastructure monitoring. A prototype system using IEEE 802.15.4 standard compliant transceiver has been tested in a laboratory. Since battery powered wireless sensors smaller in size are usually preferred for easy deployment, the energy efficiency and lifetime has to be carefully evaluated before field deployment. The power consumption for different operation scenarios has been tested, and battery lifetime is analyzed based on the test results. The feasibility of the proposed system in infrastructure monitoring is discussed.

PSI and DINSAR interferometry useful tools for monitoring earth movement: The Grand-Palais-Invalides case example (Paris-France)

… 2009, held 19-24 …, 2009

A multidisciplinary approach funded by ANR Hydrogeobat 2005, takes into account radar DINSAR and ... more

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Economic Development from Capital Investment in Transportation Systems

Journal of Nonprofit & Public Sector Marketing, 1999

ABSTRACT Capital investment in transportation systems has two success sources: Public and private... more ABSTRACT Capital investment in transportation systems has two success sources: Public and private funding. Economic development in a region is heavily dependent on efficient transportation systems. Consequently, transportation projects usually receive higher priority from state and local government planners and leaders. The subject of public capital investment in highway transportation projects and the subsequent economic developments are presented in this paper. Impacts of capital investments in highway systems on economic development are studied and the results of these studies together with the methods for evaluation of economic benefits are also discussed in this paper. Various economic benefits produced include expansion of existing businesses and location of new businesses in a region. Methods of measuring economic benefits in a region depend on a number of factors. Some critical success factors are: (1) increased per capita income, (2) reduced cost of highway transportation, (3) increased consumer ...

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