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- Faisal I Hai (27)
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Articles 31 - 60 of 90
Full-Text Articles in Social and Behavioral Sciences
Water Extraction From Mixed Liquor Of An Aerobic Bioreactor By Forward Osmosis: Membrane Fouling And Biomass Characteristics Assessment, Wenhai Luo, Faisal I. Hai, William E. Price, Long D. Nghiem
Water Extraction From Mixed Liquor Of An Aerobic Bioreactor By Forward Osmosis: Membrane Fouling And Biomass Characteristics Assessment, Wenhai Luo, Faisal I. Hai, William E. Price, Long D. Nghiem
Faisal I Hai
This study investigated membrane fouling and biomass characteristics during water extraction from mixed liquor of an aerobic bioreactor by a submerged forward osmosis (FO) system. As the sludge concentration in the reactor increased from 0 to 20 g/L, fouling of the FO membrane increased but was much less severe than that of a reference microfiltration membrane. The results also indicate that aeration can be used to effectively control membrane fouling. By increasing the draw solute concentration, as expected, the initial water flux was increased. However, there appears to be a critical water flux above which severe membrane fouling was encountered. …
Impact Of Hazardous Events On The Removal Of Nutrients And Trace Organic Contaminants By An Anoxic-Aerobic Membrane Bioreactor Receiving Real Wastewater, Hop V. Phan, Faisal I. Hai, James A. Mcdonald, Stuart J. Khan, Jason P. Van De Merwe, Frederic D. L Leusch, Ren Zhang, William E. Price, Andreas Broeckmann, Long D. Nghiem
Impact Of Hazardous Events On The Removal Of Nutrients And Trace Organic Contaminants By An Anoxic-Aerobic Membrane Bioreactor Receiving Real Wastewater, Hop V. Phan, Faisal I. Hai, James A. Mcdonald, Stuart J. Khan, Jason P. Van De Merwe, Frederic D. L Leusch, Ren Zhang, William E. Price, Andreas Broeckmann, Long D. Nghiem
Faisal I Hai
The impacts of four simulated hazardous events, namely, aeration failure, power loss, and chemical shocks (ammonia or bleach) on the performance of an anoxic-aerobic membrane bioreactor (MBR) receiving real wastewater were investigated. Hazardous events could alter pH and/or oxidation reduction potential of the mixed liquor and inhibit biomass growth, thus affecting the removal of bulk organics, nutrients and trace organic contaminants (TrOC). Chemical shocks generally exerted greater impact on MBR performance than aeration/power failure events, with ammonia shock exerting the greatest impact. Compared to total organic carbon, nutrient removal was more severely affected. Removal of the hydrophilic TrOCs that are …
Rejection And Fate Of Trace Organic Compounds (Trocs) During Membrane Distillation, Kaushalya Wijekoon, Faisal Ibney Hai, Jinguo Kang, William E. Price, Tzahi Cath, Long D. Nghiem
Rejection And Fate Of Trace Organic Compounds (Trocs) During Membrane Distillation, Kaushalya Wijekoon, Faisal Ibney Hai, Jinguo Kang, William E. Price, Tzahi Cath, Long D. Nghiem
Faisal I Hai
In this study, we examined the feasibility of membrane distillation (MD) for removing trace organic compounds (TrOCs) during water and wastewater treatment. A set of 29 compounds was selected to represent major TrOC groups, including pharmaceuticals, steroid hormones, phytoestrogens, UV-filters, industrial chemicals, and pesticides that occur ubiquitously in municipal wastewater. Results reported here suggest that rejection and fate and transport of TrOC during MD are governed by their volatility and, to a lesser extent, hydrophobicity. All TrOCs with pKH > 9 (which can be classified as non-volatile) were well removed by MD. Among the 29 TrOCs investigated in this study, three …
High Retention Membrane Bioreactors: Challenges And Opportunities, Wenhai Luo, Faisal Ibney Hai, William Price, Wenshan Guo, Hao H. Ngo, Kazuo Yamamoto, Long Nghiem
High Retention Membrane Bioreactors: Challenges And Opportunities, Wenhai Luo, Faisal Ibney Hai, William Price, Wenshan Guo, Hao H. Ngo, Kazuo Yamamoto, Long Nghiem
Faisal I Hai
Extensive research has focussed on the development of novel high retention membrane bioreactor (HR-MBR) systems for wastewater reclamation in recent years. HR-MBR integrates high rejection membrane separation with conventional biological treatment in a single step. High rejection membrane separation processes currently used in HR-MBR applications include nanofiltration, forward osmosis, and membrane distillation. In these HR-MBR systems, organic contaminants can be effectively retained, prolonging their retention time in the bioreactor and thus enhancing their biodegradation. Therefore, HR-MBR can offer a reliable and elegant solution to produce high quality effluent. However, there are several technological challenges associated with the development of HR-MBR, …
Removal Of Bisphenol A And Diclofenac By A Novel Fungal Membrane Bioreactor Operated Under Non-Sterile Conditions, Shufan Yang, Faisal I. Hai, Long D. Nghiem, Luong N. Nguyen, Felicity Roddick, William E. Price
Removal Of Bisphenol A And Diclofenac By A Novel Fungal Membrane Bioreactor Operated Under Non-Sterile Conditions, Shufan Yang, Faisal I. Hai, Long D. Nghiem, Luong N. Nguyen, Felicity Roddick, William E. Price
Faisal I Hai
Previous studies have confirmed significant removal of various trace organic contaminants (TrOCs) by white-rot fungal cultures under sterile batch test conditions. However, little is known about TrOC removal in continuous flow fungal reactors in a non-sterile environment. This study reports the removal of two TrOCs, namely, bisphenol A and diclofenac, by a fungal membrane bioreactor (MBR).
Degradation Of Azo Dye Acid Orange 7 In A Membrane Bioreactor By Pellets And Attached Growth Of Coriolus Versicolour, Faisal I. Hai, Kazuo Yamamoto, Fumiyuki Nakajima, Kensuke Fukushi, Long D. Nghiem, William E. Price, Bo Jin
Degradation Of Azo Dye Acid Orange 7 In A Membrane Bioreactor By Pellets And Attached Growth Of Coriolus Versicolour, Faisal I. Hai, Kazuo Yamamoto, Fumiyuki Nakajima, Kensuke Fukushi, Long D. Nghiem, William E. Price, Bo Jin
Faisal I Hai
The aim of this study was to systematically compare the degradation of azo dye acid orange 7 by spongy pellets and attached biofilm of Coriolus versicolour (NBRC 9791) in a membrane bioreactor (MBR) under non-sterile conditions. Mild stirring (35 rpm) resulted in spherical (φ = 0.5 cm), spongy pellets and concomitantly triggered high enzymatic activity of the fungus, allowing for excellent decolouration (>99%) of a synthetic wastewater containing the dye. However, bacterial contamination eventually damaged the fungus pellets, leading to decreased decolouration efficiency. Promotion of attached growth on a plastic support along with formation of spherical spongy pellets allowed …
A Review On The Occurrence Of Micropollutants In The Aquatic Environment And Their Fate And Removal During Wastewater Treatment, Yunlong Luo, Wenshan Guo, Huu Hao Ngo, Long Duc Nghiem, Faisal Ibney Hai, Jian Zhang, Shuang Liang, Xiaochang C. Wang
A Review On The Occurrence Of Micropollutants In The Aquatic Environment And Their Fate And Removal During Wastewater Treatment, Yunlong Luo, Wenshan Guo, Huu Hao Ngo, Long Duc Nghiem, Faisal Ibney Hai, Jian Zhang, Shuang Liang, Xiaochang C. Wang
Faisal I Hai
Micropollutants are emerging as a new challenge to the scientific community. This review provides a summary of the recent occurrence of micropollutants in the aquatic environment including sewage, surface water, groundwater and drinking water. The discharge of treated effluent from WWTPs is a major pathway for the introduction of micropollutants to surface water. WWTPs act as primary barriers against the spread of micropollutants. WWTP removal efficiency of the selected micropollutants in 14 countries/regions depicts compound-specific variation in removal, ranging from 12.5 to 100%. Advanced treatment processes, such as activated carbon adsorption, advanced oxidation processes, nanofiltration, reverse osmosis, and membrane bioreactors …
Trace Organic Contaminants In Biosolids: Impact Of Conventional Wastewater And Sludge Processing Technologies And Emerging Alternatives, Galilee U. Semblante, Faisal I. Hai, Xia Huang, Andrew S. Ball, William E. Price, Long D. Nghiem
Trace Organic Contaminants In Biosolids: Impact Of Conventional Wastewater And Sludge Processing Technologies And Emerging Alternatives, Galilee U. Semblante, Faisal I. Hai, Xia Huang, Andrew S. Ball, William E. Price, Long D. Nghiem
Faisal I Hai
This paper critically reviews the fate of trace organic contaminants (TrOCs) in biosolids, with emphasis on identifying operation conditions that impact the accumulation of TrOCs in sludge during conventional wastewater and sludge treatment and assessing the technologies available for TrOC removal from biosolids. The fate of TrOCs during sludge thickening, stabilisation (e.g. aerobic digestion, anaerobic digestion, alkaline stabilisation, and composting), conditioning, and dewatering is elucidated. Operation pH, sludge retention time (SRT), and temperature have significant impact on the sorption and biodegradation of TrOCs in activated sludge that ends up in the sludge treatment line. Anaerobic digestion may exacerbate the estrogenicity …
Gendered Jobs And The New Gender Gap, George K. Thiruvathukal, Jon Ross
Gendered Jobs And The New Gender Gap, George K. Thiruvathukal, Jon Ross
George K. Thiruvathukal
This presentation discusses how to address 21st Century employment challenges by dismantling gender-specific barriers to entry. We take an interdisciplinary approach by focusing on areas such as education, public policy, culture, and media (among others).
Ontological Meta-Analysis And Synthesis Of Hipaa, Arkalgud Ramaprasad, Thant Syn, Khin Than Win
Ontological Meta-Analysis And Synthesis Of Hipaa, Arkalgud Ramaprasad, Thant Syn, Khin Than Win
Thant Syn
We present ontological meta-analysis and synthesis of HIPAA (Health Insurance Portability and Accountability Act) as a method for reviewing, mapping, and visualizing the research literature in the domain cumulatively, logically, systematically, and systemically. The method will highlight the domain's bright spots which are heavily emphasized, the light spots which are lightly emphasized, the blind spots which have been overlooked, and the blank spots which may never be emphasized. It will highlight the biases and asymmetries in the domain's research; the research can then be realigned to make it stronger and more effective. We present an ontology for HIPAA, map the …
Scientific Consensus, Carol Reeves
The Evaluation Of A 2d Diode Array In "Magic Phantom" For Use In High Dose Rate Brachytherapy Pretreatment Quality Assurance, Anthony A. Espinoza, Marco Petasecca, Iolanda Fuduli, Andrew Howie, Joseph A. Bucci, Stephanie Corde, Michael Jackson, Michael L. F Lerch, Anatoly B. Rosenfeld
The Evaluation Of A 2d Diode Array In "Magic Phantom" For Use In High Dose Rate Brachytherapy Pretreatment Quality Assurance, Anthony A. Espinoza, Marco Petasecca, Iolanda Fuduli, Andrew Howie, Joseph A. Bucci, Stephanie Corde, Michael Jackson, Michael L. F Lerch, Anatoly B. Rosenfeld
Stéphanie Corde
Purpose: High dose rate (HDR) brachytherapy is a treatment method that is used increasingly worldwide. The development of a sound quality assurance program for the verification of treatment deliveries can be challenging due to the high source activity utilized and the need for precise measurements of dwell positions and times. This paper describes the application of a novel phantom, based on a 2D 11 x 11 diode array detection system, named "magic phantom" (MPh), to accurately measure plan dwell positions and times, compare them directly to the treatment plan, determine errors in treatment delivery, and calculate absorbed dose. Methods: The …
Games Are Not Coffee Mugs: Games And The Right Of Publicity, 29 Santa Clara Computer & High Tech. L.J. 1 (2012), William K. Ford, Raizel Liebler
Games Are Not Coffee Mugs: Games And The Right Of Publicity, 29 Santa Clara Computer & High Tech. L.J. 1 (2012), William K. Ford, Raizel Liebler
William K. Ford
Are games more like coffee mugs, posters, and T-shirts, or are they more like books, magazines, and films? For purposes of the right of publicity, the answer matters. The critical question is whether games should be treated as merchandise or as expression. Three classic judicial decisions, decided in 1967, 1970, and 1973, held that the defendants needed permission to use the plaintiffs' names in their board games. These decisions judicially confirmed that games are merchandise, not something equivalent to more traditional media of expression. As merchandise, games are not like books; instead, they are akin to celebrity-embossed coffee mugs. To …
Research Collaboration Experiences, Good And Bad: Dispatches From The Front Lines, Barry Bozeman, Monica Gaughan, Jan Youtie, Catherine P. Slade, Heather Rimes
Research Collaboration Experiences, Good And Bad: Dispatches From The Front Lines, Barry Bozeman, Monica Gaughan, Jan Youtie, Catherine P. Slade, Heather Rimes
Jan Youtie
The scant literature on individual scientists collaboration dynamics is used to develop a provisional model of research collaboration effectiveness. It incorporates external, collaborator, and team management factors, forming the basis for our theoretically informed qualitative analysis. We use this provisional model to guide semi-structured interview themes, deriving data from 60 US academic researchers, selected from a range of scientific and engineering disciplines as well as one social sciences discipline (economics). We present our findings in the form of respondent quotations related to the provisional model. We then conduct a further content analysis on the organizing constructs of respondent-assessed good and …
Applications Of Controllable Smart Fluids To Mechanical Systems, Seung-Bok Choi, Norman Wereley, Weihua Li, Miao Yu, Jeong-Hoi Koo
Applications Of Controllable Smart Fluids To Mechanical Systems, Seung-Bok Choi, Norman Wereley, Weihua Li, Miao Yu, Jeong-Hoi Koo
Miao Yu
For this special issue, 20 papers have been received, and three of which have been withdrawn. After strict review processes by the world-wide experts on the smart fluids technology, 10 papers have been accepted and are published here.The published papers cover various application devices and systems, which can be controllable to achieve desired performances by applying the external fields to the smart fluid domains. A brief summary of each application item proposed in the published papers is given as follows.
An Early Asearc - Taught Subject: Has It Been A Success?, Carole Birrell, Ken Russell
An Early Asearc - Taught Subject: Has It Been A Success?, Carole Birrell, Ken Russell
Dr Carole Birrell
A 300-level subject covering Sample Surveys and Experimental Design has now been taught jointly to the Universities of Wollongong and Newcastle for two years, first using video-conferencing and then the Access Grid. In both years the subject was delivered by the same two lectures. We provide an initial review of the subject. We discuss its organisation, the use of technology, changes in our teaching and administrative styles needed to cope with this mode of delivery, feedback from students and our reaction to all of these. An overview of the subject results is given.
Formulation Of Cross-Anisotropic Failure Criterion For Soils, Yi-Fei Sun, Han-Long Liu, Gui Yang, Yang Xiao
Formulation Of Cross-Anisotropic Failure Criterion For Soils, Yi-Fei Sun, Han-Long Liu, Gui Yang, Yang Xiao
Yang Xiao
Inherently anisotropic soil fabric has a considerable influence on soil strength. To model this kind of inherent anisotropy, a three-dimensional anisotropic failure criterion was proposed, employing a scalar-valued anisotropic variable and a modified general threedimensional isotropic failure criterion. The scalar-valued anisotropic variable in all sectors of the deviatoric plane was defined by correlating a normalized stress tensor with a normalized fabric tensor. Detailed comparison between the available experimental data and the corresponding model predictions in the deviatoric plane was conducted. The proposed failure criterion was shown to well predict the failure behavior in all sectors, especially in sector II with …
The Beginning Of Digital Wisdom, Michael J. Paulus Jr., Ryan Ingersoll
The Beginning Of Digital Wisdom, Michael J. Paulus Jr., Ryan Ingersoll
Ryan Ingersoll
Marc Prensky, who popularized the term “digital natives” more than ten years ago, now emphasizes the need for “digital wisdom”: using digital technologies wisely to become wiser. Recent research reveals that so-called digital natives are often “digital naïves”—familiarity with digital technologies does not translate into facility with them. Incoming college students report declining confidence in their computer skills and report very modest improvements by the time they graduate. Employers report deficiencies in the technological skills of college graduates and, perhaps most troubling, studies of youth and young adults show that ethical and moral reasoning does not extend much beyond self-protection. …
The Beginning Of Digital Wisdom, Michael J. Paulus Jr., Ryan Ingersoll
The Beginning Of Digital Wisdom, Michael J. Paulus Jr., Ryan Ingersoll
Michael J. Paulus, Jr.
Marc Prensky, who popularized the term “digital natives” more than ten years ago, now emphasizes the need for “digital wisdom”: using digital technologies wisely to become wiser. Recent research reveals that so-called digital natives are often “digital naïves”—familiarity with digital technologies does not translate into facility with them. Incoming college students report declining confidence in their computer skills and report very modest improvements by the time they graduate. Employers report deficiencies in the technological skills of college graduates and, perhaps most troubling, studies of youth and young adults show that ethical and moral reasoning does not extend much beyond self-protection. …
Not Just A Tool. Taking Context Into Account In The Development Of A Mobile App For Rural Water Supply In Tanzania, Robert Hoppe, Anne Wesselink, Rob Lemmens
Not Just A Tool. Taking Context Into Account In The Development Of A Mobile App For Rural Water Supply In Tanzania, Robert Hoppe, Anne Wesselink, Rob Lemmens
Robert Hoppe
The 'eGovernance' hype around the potential of mobile phone and geoweb technologies for enhancing 'good governance' is soaring. In East Africa, the extensive use of mobile telephony adds to the imagined promises of ICT. We reflect on the assumptions made by the proponents of such tools, using our own action research project as an example. We took great care to consider context in the development of software for enhancing empowerment and accountability in rural water supply in Tanzania. However, we found that the rural water supply context in Tanzania is much more complex than the contexts for which successful mApps …
Expectations For Methodology And Translation Of Animal Research: A Survey Of Health Care Workers, Ari Joffe, Meredith Bara, Natalie Anton, Nathan Nobis
Expectations For Methodology And Translation Of Animal Research: A Survey Of Health Care Workers, Ari Joffe, Meredith Bara, Natalie Anton, Nathan Nobis
Nathan M. Nobis, PhD
Background: Health care workers (HCW) often perform, promote, and advocate use of public funds for animal research (AR); therefore, an awareness of the empirical costs and benefits of animal research is an important issue for HCW. We aim to determine what health-care-workers consider should be acceptable standards of AR methodology and translation rate to humans. Methods: After development and validation, an e-mail survey was sent to all pediatricians and pediatric intensive care unit nurses and respiratory-therapists (RTs) affiliated with a Canadian University. We presented questions about demographics, methodology of AR, and expectations from AR. Responses of pediatricians and nurses/RTs were …
Key Characteristics-Based Sensor Distribution In Multi-Station Assembly Processes, Nagesh Shukla, Darek Ceglarek, Manoj K. Tiwari
Key Characteristics-Based Sensor Distribution In Multi-Station Assembly Processes, Nagesh Shukla, Darek Ceglarek, Manoj K. Tiwari
Nagesh Shukla
This paper presents a novel approach for optimal key characteristics-based sensor distribution in a multi-station assembly process, for the purpose of diagnosing variation sources responsible for product quality defects in a timely manner. Current approaches for sensor distribution are based on the assumption that measurement points can be allocated at arbitrary locations on the part or subassembly. This not only presents challenges in the implementation of these approaches but additionally does not allow required product assurance and quality control standards to be integrated with them, due to lack of explicit relations between measured features and geometric dimensioning and tolerancing (GD&T). …
A Novel Integrated Model To Measure Supplier Performance Considering Qualitative And Quantitative Criteria Used In The Supplier Selection Process, Alptekin Ulutas, Senevi Kiridena, Peter Gibson, Nagesh Shukla
A Novel Integrated Model To Measure Supplier Performance Considering Qualitative And Quantitative Criteria Used In The Supplier Selection Process, Alptekin Ulutas, Senevi Kiridena, Peter Gibson, Nagesh Shukla
Nagesh Shukla
Supplier evaluation has become a significant topic over the past few decades, as companies have become more outsourced oriented. However, previous research on this topic has not paid adequate attention to the limitations associated with the availability of accurate and reliable data relating to the performance of potential suppliers. In an attempt to address this issue, this paper proposes a novel supplier evaluation model that can handle imprecise quantitative and qualitative data. Additionally, Decision Maker's judgement regarding both qualitative and quantitative criteria are incorporated into this model so that a more comprehensive and realistic assessment of supplier performance can be …
Improved Workflow Modelling Using Role Activity Diagram-Based Modelling With Application To A Radiology Service Case Study, Nagesh Shukla, John Keast, Darek Ceglarek
Improved Workflow Modelling Using Role Activity Diagram-Based Modelling With Application To A Radiology Service Case Study, Nagesh Shukla, John Keast, Darek Ceglarek
Nagesh Shukla
The modelling of complex workflows is an important problem-solving technique within healthcare settings. However, currently most of the workflow models use a simplified flow chart of patient flow obtained using on-site observations, groupbased debates and brainstorming sessions, together with historic patient data. This paper presents a systematic and semi-automatic methodology for knowledge acquisition with detailed process representation using sequential interviews of people in the key roles involved in the service delivery process. The proposed methodology allows the modelling of roles, interactions, actions, and decisions involved in the service delivery process. This approach is based on protocol generation and analysis techniques …
A Probabilistic Predictive Model For Residential Mobility In Australia, Mohammad-Reza Namazi-Rad, Nagesh Shukla, Albert Munoz, Payam Mokhtarian, Jun Ma
A Probabilistic Predictive Model For Residential Mobility In Australia, Mohammad-Reza Namazi-Rad, Nagesh Shukla, Albert Munoz, Payam Mokhtarian, Jun Ma
Nagesh Shukla
Household relocation modelling is an integral part of the planning process as residential movements influence the demand for community facilities and services. Department of Families, Housing, Community Services and Indigenous Affairs (FaHCSIA) created the Household, Income and Labour Dynamics in Australia (HILDA) program to collect reliable longitudinal data on family and household dynamics. Socio-demographic information (such as general health situation and well-being, lifestyle changes, residential mobility, income and welfare dynamics, and labour market dynamics) is collected from the sampled individuals and households. The data shows that approximately 17% of Australian households and 13% of couple families in the HILDA sample …
Algorithm Portfolios For Logistics Optimization Considering Stochastic Demands And Mobility Allowance, N Shukla, A K. Choudhary, P Prakash, K J. Fernandes, M K. Tiwari
Algorithm Portfolios For Logistics Optimization Considering Stochastic Demands And Mobility Allowance, N Shukla, A K. Choudhary, P Prakash, K J. Fernandes, M K. Tiwari
Nagesh Shukla
The vehicle routing problem with stochastic demand (VRPSD) is a well known NP-hard problem. The uncharacteristic behaviour associated with the problem enhances the computational efforts required to obtain a feasible and near-optimal solution. This paper proposes an algorithm portfolio methodology based on evolutionary algorithms, which takes into account the stochastic nature of customer demand to solve this computationally complex problem. These problems are well known to have computationally complex objective functions, which make their solutions hard to find, particularly when problem instances of large dimensions are considered. Of particular importance in such situations is the timeliness of the solution. For …
Reducing Unwarranted Variation In Healthcare Service Delivery Systems: Key Issues, Research Challenges And Potential Solutions, Nagesh Shukla, Senevi Kiridena, Nishikant Mishra
Reducing Unwarranted Variation In Healthcare Service Delivery Systems: Key Issues, Research Challenges And Potential Solutions, Nagesh Shukla, Senevi Kiridena, Nishikant Mishra
Nagesh Shukla
There is a growing need worldwide to increase the quality and productivity of healthcare services delivery. To this end, analysing and reducing unwarranted variations in healthcare has attracted much attention in recent times. However, current modelling and simulation approaches to reduce unwarranted variations suffer from numerous limitations. Consequently, service improvement efforts have often failed to deliver expected results. This paper discusses the key issues associated with reducing unwarranted variations in hospital service delivery systems, and proposes a research framework that aims at overcoming these issues. In doing so, it highlights the need for: accurately and efficiently modelling complex service delivery …
Cloud Computing Technology: Reducing Carbon Footprint In Beef Supply Chain, Akshit Singh, Nishikant Mishra, Syed Imran Ali, Nagesh Shukla, Ravi Shankar
Cloud Computing Technology: Reducing Carbon Footprint In Beef Supply Chain, Akshit Singh, Nishikant Mishra, Syed Imran Ali, Nagesh Shukla, Ravi Shankar
Nagesh Shukla
Global warming is an alarming issue for the whole humanity. The manufacturing and food supply chains are contributing significantly to the large-scale carbon emissions. Beef supply chain is one of the segments of food industry having considerable carbon footprint throughout its supply chain. The major emissions are occurring at beef farms in the form of methane and nitrous oxide gases. The other carbon hotspots in beef supply chain are abattoir, processor, logistics and retailer. There is a huge amount of pressure from government authorities to all the business firms to cut down carbon emissions. The different stakeholders of beef supply …
Power Sharing Among Multiple Solar Photovoltaic (Pv) Systems In A Radial Distribution Feeder, Brian K. Perera, Philip Ciufo
Power Sharing Among Multiple Solar Photovoltaic (Pv) Systems In A Radial Distribution Feeder, Brian K. Perera, Philip Ciufo
Dr Philip Ciufo
With an increasing penetration of solar photovoltaic (PV) systems, power distribution grids are becoming more susceptible to network voltage rise. As per applicable standards for grid-integrated PV systems, a PV system must be automatically disconnected from the grid when the terminal voltage of the PV system exceeds a defined maximum voltage. With this directive, in certain situations, PV systems connected at nodes at which the voltage sensitivity is high, may be disconnected from the grid while PV systems connected at less sensitive nodes are continuing to operate. In such a situation, owners whose PV systems are connected at nodes at …
Novel Modulation And Control Strategy For Five-Level Anpc Converter With Unbalanced Dc Voltage Applied To A Single-Phase Grid Connected Pv System, Hamid R. Teymour, Danny Sutanto, Kashem M. Muttaqi, Phil Ciufo
Novel Modulation And Control Strategy For Five-Level Anpc Converter With Unbalanced Dc Voltage Applied To A Single-Phase Grid Connected Pv System, Hamid R. Teymour, Danny Sutanto, Kashem M. Muttaqi, Phil Ciufo
Dr Philip Ciufo
This paper proposes a new control strategy and a novel modulation technique for a grid-connected photo-voltaic (PV) system using a single-phase five-level flying capacitor (FC) based active-neutral-point-clamped (ANPC) converter. The proposed modulator can control the FC voltage to follow the requested reference value and simultaneously generate the required ac output voltage regardless of the values of the dc capacitor voltages of the converter. By implementing this method, smaller values of dc-link and flying capacitors can be used even in applications that could experience ripple or transient in the capacitors voltage. In the grid-connected single-phase five-level ANPC, where the capacitors can …