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- Keyword
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- Adaptive systems; Photovoltaic power systems; Photovoltaic cells; Utility interactive system; Central inverter topology; Inverter (1)
- Construction falls (1)
- Course revision (1)
- Electric Vehicles (1)
- Electrical engineering (1)
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- Energy Management (1)
- Engineering education (1)
- Fall risk (1)
- Force Plate (1)
- Gait-stability metrics (1)
- Inertial Measurement Units (1)
- Load Forecasting (1)
- Load Identification (1)
- Maximum Lyapunov exponents (1)
- Neural Network (1)
- Outcomes (1)
- PEV User Charging Behavior (1)
- Postural stability (1)
- Public Charging Infrastructure (1)
- Public Charging Stations (1)
- Quantitative measurement (1)
- Quantitative measures (1)
- Student learning (1)
- Publication
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- Durham School of Architectural Engineering and Construction: Dissertations, Thesis, and Student Research (3)
- Department of Construction Engineering and Management: Dissertations, Theses, and Student Research (1)
- Durham School of Architectural Engineering and Construction: Faculty Publications (1)
- UNL Faculty Course Portfolios (1)
Articles 1 - 6 of 6
Full-Text Articles in Architecture
The Impact Of Pev User Charging Behavior In Building Public Charging Infrastructure, Ahmad Almaghrebi
The Impact Of Pev User Charging Behavior In Building Public Charging Infrastructure, Ahmad Almaghrebi
Durham School of Architectural Engineering and Construction: Dissertations, Thesis, and Student Research
Plug-in electric vehicles (PEVs) play a significant role in the development of green cities since they generate less pollution than conventional vehicles. To promote PEV adoption and mitigate range anxiety, charging infrastructure should be deployed at strategic locations that are readily accessible to the public. Nebraska is working on the expansion of charging infrastructure around the state; however, stakeholders face several difficulties in trying to minimize irregular charging behaviors. Most electric vehicle users plug in and leave their vehicles for an extended time at public parking lots designated for PEVs. Some users even leave their vehicles for longer than 24 …
Harmonics Elimination In Three Phase Cascade H-Bridge Multilevel Inverter Using Virtual Stage Pwm, Amro Quedan
Harmonics Elimination In Three Phase Cascade H-Bridge Multilevel Inverter Using Virtual Stage Pwm, Amro Quedan
Durham School of Architectural Engineering and Construction: Dissertations, Thesis, and Student Research
The multilevel inverters are one of the great solutions that are proposed to satisfy the demand for high-power application and the significant integration of renewable energy. The conversion process from DC to AC must be done at high efficiency to decrease the energy loss and to ensure the electric grid power quality. The Total Harmonic Distortion (THD) is the most important feature that indicates the efficiency of the conversion process. In this research, due to the advantages of the cascade H-bridge inverter over other topologies, it has been used with the virtual stage PWM technique to investigate two different methods …
Assessing Gait And Postural Stability Of Construction Workers Using Wearable Wireless Sensor Networks, Houtan Jebelli
Assessing Gait And Postural Stability Of Construction Workers Using Wearable Wireless Sensor Networks, Houtan Jebelli
Department of Construction Engineering and Management: Dissertations, Theses, and Student Research
Falling accidents are a leading cause of fatal and nonfatal injuries in the construction industry. This fact demonstrates the need for a comprehensive fall-risk analysis that incorporates the effects of construction workers’ physiological characteristics. In this context, the objective of the thesis is to investigate and validate the usefulness of the gait- and postural-stability metrics in assessing construction workers’ fall risks. Diverse metrics that assess the capability to keep the body balanced and maintain coordination of body segments during locomotion (gait stability) and stationary postures (postural stability) have been introduced and used in clinical applications. However, their usefulness in the …
Elec 2110: Elements Of Electrical Engineering—A Peer Review Of Teaching Project Benchmark Portfolio, Mahmoud Alahmad
Elec 2110: Elements Of Electrical Engineering—A Peer Review Of Teaching Project Benchmark Portfolio, Mahmoud Alahmad
UNL Faculty Course Portfolios
I have been teaching this class for the last five years. As an introductory course to electrical engineering, there is a lot of material that needs to be covered. All the material is important and relevant, and I try to go in-depth in each topic area. This approach has resulted in overwhelming the students and made them struggle with the course content, application and utilization. As I consider this course for the peer review, I am evaluating the depth of each topic and the opportunity to adjust the approach and method used to introduce new concepts and at the same …
An Adaptive Utility Interactive Photovoltaic System Based On A Flexible Switch Matrix To Optimize Performance In Real-Time, Mahmoud Alahmad, Mohamed Amer Chaaban, Siu Kit Lau, Jonathan Shi, Jill Neal
An Adaptive Utility Interactive Photovoltaic System Based On A Flexible Switch Matrix To Optimize Performance In Real-Time, Mahmoud Alahmad, Mohamed Amer Chaaban, Siu Kit Lau, Jonathan Shi, Jill Neal
Durham School of Architectural Engineering and Construction: Faculty Publications
Reconfigurable architectures are of great interest to system designers to improve the system’s operation and efficiency. In this paper, we propose an adaptive utility interactive photovoltaic (PV) system based on a novel Flexible Switch array Matrix topology. This proposed system maximizes the generated power in real-time in response to operational conditions such as shading, soiling, mismatches, and module failure among others. The proposed system is a compromise in the utilization of power conditioning equipment to maximize energy capture and system efficiency. Simulation results demonstrate an average 13% improvement in efficiency when compared with the central inverter topology performance. A prototype …
Ann Based Load Identification And Forecasting System For The Built Environment, Hosen Hasna
Ann Based Load Identification And Forecasting System For The Built Environment, Hosen Hasna
Durham School of Architectural Engineering and Construction: Dissertations, Thesis, and Student Research
"Phantom Loads" cause energy waste in homes and the built environment as a whole. Consumers spend more than $3 billion a year on "Phantom Load" in the United States alone. The goal of this work is to conserve energy by increasing consumer awareness on their energy usage and appropriate tools which in turn will be reducing and /or eliminating phantom loads and mismanagement of the load in the built environment. A further goal is to improve upon existing power distribution systems in the built environment with limited hardware additions to increase energy conservation. This work investigates remote identification of load …