Works (111)

Updated: June 19th, 2024 05:04

2023 journal article

Supervised Machine Learning Approaches for Leak Localization in Water Distribution Systems: Impact of Complexities of Leak Characteristics

JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT, 149(8).

By: L. Basnet n, D. Brill n, R. Ranjithan n & K. Mahinthakumar n

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: July 19, 2023

2020 journal article

Exploring alternative solid waste management strategies for achieving policy goals

Engineering Optimization, 53(5), 1–14.

By: M. Jaunich n, J. Levis n, J. DeCarolis n, M. Barlaz n & S. Ranjithan n

author keywords: Modelling to generate alternatives (MGA); solid waste management (SWM); life-cycle assessment (LCA); solid waste optimization life-cycle framework (SWOLF); solid waste policy analysis
Sources: Web Of Science, NC State University Libraries, ORCID, Crossref
Added: July 27, 2020

2019 journal article

Metamodels to assess the thermal performance of naturally ventilated, low-cost houses in Brazil

ENERGY AND BUILDINGS, 204.

By: M. Rossi*, A. Oliveira Favretto*, C. Grassi*, J. DeCarolis n, S. Cho n, D. Hill n, K. Soares Chvatal, R. Ranjithan n

author keywords: Passive design; Natural ventilation; Metamodel; Multivariate regression; Early design
TL;DR: The proposed metamodels can quickly and accurately assess the thermal performance of naturally ventilated low-cost houses during early design and can be used to guide professionals during the early design stages, and for educational purposes in building design pedagogy. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: December 9, 2019

2019 journal article

Solid Waste Management Policy Implications on Waste Process Choices and Systemwide Cost and Greenhouse Gas Performance

Environmental Science & Technology, 53(4), 1766–1775.

By: M. Jaunich n, J. Levis n, J. DeCarolis n, M. Barlaz n & S. Ranjithan n

MeSH headings : Cities; Greenhouse Effect; Greenhouse Gases; Humans; North Carolina; Refuse Disposal; Solid Waste; Waste Management
TL;DR: This analysis evaluated cost and select environmental implications of SWM policies for Wake County, North Carolina using a life-cycle approach and found that maintaining the current separate collection scheme limited the potential for cost and GHG reductions. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, Crossref, ORCID
Added: March 11, 2019

2017 journal article

Battle of Water Networks DMAs: Multistage Design Approach

JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT, 143(10).

By: E. Salomons, O. Skulovich* & A. Ostfeld*

author keywords: Water distribution; Design; Optimization; Clustering; District metering areas (DMAs)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

Construction and setup of a bench-scale algal photosynthetic bioreactor with temperature, light, and ph monitoring for kinetic growth tests

Jove-Journal of Visualized Experiments, (124).

By: A. Karam, C. McMillan, Y. Lai, F. Reyes, H. Sederoff, A. Grunden, R. Ranjithan, J. Levis, J. Ducoste

Source: NC State University Libraries
Added: August 6, 2018

2016 journal article

An enhanced linear regression-based building energy model (LRBEM plus ) for early design

JOURNAL OF BUILDING PERFORMANCE SIMULATION, 9(2), 115–133.

By: M. Al Gharably*, J. DeCarolis n & S. Ranjithan n

author keywords: EnergyPlus; Monte Carlo simulation; multivariate regression; building geometry
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

A framework for incorporating ecological releases in single reservoir operation

Advances in Water Resources, 78, 9–21.

By: H. Wang*, E. Brill n, R. Ranjithan n & A. Sankarasubramanian n

author keywords: Ecological flow requirements; Natural flow regime; Sustainable reservoir operation; Mixed integer linear programming
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science; OpenAlex)
Sources: Crossref, NC State University Libraries, Web Of Science
Added: August 6, 2018

2015 journal article

Role of multimodel combination and data assimilation in improving streamflow prediction over multiple time scales

Stochastic Environmental Research and Risk Assessment, 30(8), 2255–2269.

By: W. Li n, A. Sankarasubramanian n, R. Ranjithan n & T. Sinha n

TL;DR: An experimental design is proposed to test the performance of both approaches, multimodel combination and data assimilation, in improving the hydrologic prediction at daily and monthly time scales, and to compare how uncertainty due to initial conditions and Hydrologic model can be dominant at the respective time scales. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: NC State University Libraries, Crossref, NC State University Libraries
Added: August 6, 2018

2015 journal article

Understanding the low-frequency variability in hydroclimatic attributes over the southeastern US

JOURNAL OF HYDROLOGY, 521, 170–181.

By: H. Wang, A. Sankarasubramanian n & R. Ranjithan n

author keywords: Interannual variability; Decadal oscillations; Singular Spectrum Analysis; Basin storage effect; Water management
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2014 journal article

A Monitoring Network Design Procedure for Three-Dimensional (3D) Groundwater Contaminant Source Identification

ENVIRONMENTAL FORENSICS, 15(1), 78–96.

By: X. Jin n, R. Ranjithan n & G. Mahinthakumar n

author keywords: genetic algorithm; monitoring well network; Groundwater modeling; D-optimality
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2014 journal article

Battle of the Water Networks II

Journal of Water Resources Planning and Management, 140(7), 04014009.

By: A. Marchi*, E. Salomons, A. Ostfeld*, Z. Kapelan*, A. Simpson*, A. Zecchin*, H. Maier*, Z. Wu* ...

author keywords: Water distribution systems; Optimization; Design; Pump operation
Sources: Crossref, NC State University Libraries, Web Of Science
Added: February 24, 2020

2014 journal article

Improved regional water management utilizing climate forecasts: An interbasin transfer model with a risk management framework

Water Resources Research, 50(8), 6810–6827.

By: W. Li n, A. Sankarasubramanian n, R. Ranjithan n & E. Brill n

author keywords: regional water management; inflow forecasts; interbasin transfer
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2014 journal article

Systematic Exploration of Efficient Strategies to Manage Solid Waste in U.S. Municipalities: Perspectives from the Solid Waste Optimization Life-Cycle Framework (SWOLF)

Environmental Science & Technology, 48(7), 3625–3631.

By: J. Levis n, M. Barlaz n, J. DeCarolis n & S. Ranjithan n

MeSH headings : Air Pollutants / analysis; Cities; Costs and Cost Analysis; Electricity; Gases / analysis; Greenhouse Effect; Humans; Models, Theoretical; Solid Waste / analysis; Solid Waste / economics; Time Factors; Uncertainty; United States; Waste Management / economics; Waste Management / methods
TL;DR: The results illustrate how the timed-deployment of technologies in response to changes in waste composition and the energy system results in more efficient SWM system performance compared to what is possible from static analyses. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2013 conference paper

A Sensitivity Analysis of Data Measurement Types for Leak Detection in Water Distribution Systems

World Environmental and Water Resources Congress 2013. Presented at the World Environmental and Water Resources Congress 2013.

By: M. Jasper n, G. Mahinthakumar n, S. Ranjithan n & E. Brill n

Event: World Environmental and Water Resources Congress 2013

Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2013 journal article

A generalized multistage optimization modeling framework for life cycle assessment-based integrated solid waste management

Environmental Modelling & Software, 50, 51–65.

By: J. Levis n, M. Barlaz n, J. DeCarolis n & S. Ranjithan n

author keywords: Solid waste; Optimization; Multi-stage; Life cycle assessment; Decision support
TL;DR: This paper presents the first life cycle-based framework to optimize-over multiple time stages-the collection and treatment of all waste materials from curb to final disposal by minimizing cost or environmental impacts while considering user-defined emissions and waste diversion constraints. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2013 journal article

Development of a simultaneous search-based pilot point method for subsurface characterization

STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT, 27(8), 2003–2013.

By: Y. Jung*, G. Mahinthakumar n & R. Ranjithan n

author keywords: Hydraulic conductivity; SSBM; DBM; Global optimization
UN Sustainable Development Goal Categories
13. Climate Action (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2013 journal article

Integration of Climate and Weather Information for Improving 15-Day-Ahead Accumulated Precipitation Forecasts

JOURNAL OF HYDROMETEOROLOGY, 14(1), 186–202.

By: H. Wang n, A. Sankarasubramanian n & R. Ranjithan n

UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2013 conference paper

Leak Detection in Water Distribution Systems Using the Dividing Rectangles (DIRECT) Search

World Environmental and Water Resources Congress 2013. Presented at the World Environmental and Water Resources Congress 2013.

By: M. Jasper n, G. Mahinthakumar n, S. Ranjithan n & E. Brill n

Event: World Environmental and Water Resources Congress 2013

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2013 article

Special Issue on the Role of Systems Analysis in Watershed Management

Cai, X., Vogel, R., & Ranjithan, R. (2013, September). JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT, Vol. 139, pp. 461–463.

By: X. Cai*, R. Vogel* & R. Ranjithan n

TL;DR: This special issue is expected to serve the water resources management and planning community by highlighting the current state of some innovative research findings relating to applications of systems methods for solving various watershed management modeling problems. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 journal article

Contaminant source characterization in water distribution systems using binary signals

Journal of Hydroinformatics, 14(3), 585–602.

By: J. Kumar*, E. Brill n, G. Mahinthakumar n & S. Ranjithan n

author keywords: contaminant warning system; evolutionary algorithms; non-uniqueness; water distribution systems; water quality sensors
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: Crossref, NC State University Libraries, Web Of Science
Added: August 6, 2018

2012 journal article

Coupling of logistic regression analysis and local search methods for characterization of water distribution system contaminant source

Engineering Applications of Artificial Intelligence, 25(2), 309–316.

By: L. Liu*, E. Zechman n, G. Mahinthakumar n & S. Ranji Ranjithan n

author keywords: Logistic regression analysis; Local search; Contamination; Water distribution systems
TL;DR: Application of the proposed approach to two illustrative example water distribution networks demonstrates its capability of adaptively discovering contaminant source characteristics as well as evaluating the degree of non-uniqueness of solutions. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2012 journal article

Enhanced Simulation-Optimization Approach Using Surrogate Modeling for Solving Inverse Problems

Environmental Forensics, 13(4), 348–363.

By: B. Mirghani n, E. Zechman n, R. Ranjithan n & G. Mahinthakumar n

author keywords: artificial numeral network; genetic algorithms; groundwater modeling; inverse problems; simulation-optimization; surrogate modeling
TL;DR: This study investigates and discusses groundwater system characterization problem utilizing surrogate modeling, a technique utilized to solve inverse problems by formulating them as an optimization model, where evolutionary computation algorithms are used to perform the search. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2012 journal article

Identifying contaminant sources for water distribution systems using a hybrid method

Civil Engineering and Environmental Systems, 29(2), 123–136.

By: L. Liu*, E. Zechman n, G. Mahinthakumar n & S. Ranji Ranjithan n

author keywords: identification; water distribution systems; contamination; algorithms; hybrid heuristic search
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2012 journal article

Multivariate regression as an energy assessment tool in early building design

Building and Environment, 57, 165–175.

By: J. Hygh, J. DeCarolis*, D. Hill n & S. Ranji Ranjithan

author keywords: EnergyPlus; Monte Carlo simulation; Multivariate regression; Sensitivity analysis
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2012 conference paper

Parallel Multi-Swarm Optimization Framework for Search Problems in Water Distribution Systems

World Environmental and Water Resources Congress 2012. Presented at the World Environmental And Water Resources Congress 2012.

By: S. Sreepathi, D. Brill, R. Ranjithan* & G. Mahinthakumar

Event: World Environmental And Water Resources Congress 2012

TL;DR: A parallel optimization framework using multiple concurrent particle swarms is developed and applied to water distribution problems and details of the enabling framework that couples the optimization methods with a parallel simulator built around EPANET will be discussed. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2012 conference paper

Probabilistic Mapping of Water Leakage Characterizations Using a Bayesian Approach

World Environmental and Water Resources Congress 2012. Presented at the World Environmental And Water Resources Congress 2012.

By: M. Barandouzi n, G. Mahinthakumar n, R. Ranjithan n & E. Brill n

Event: World Environmental And Water Resources Congress 2012

Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2011 journal article

Contamination Source Identification in Water Distribution Systems Using an Adaptive Dynamic Optimization Procedure

JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT, 137(2), 183–192.

By: L. Liu n, S. Ranjithan n & G. Mahinthakumar n

author keywords: Identification; Water distribution systems; Contamination; Algorithms
TL;DR: An adaptive dynamic optimization technique (ADOPT) is proposed for providing a real-time response to a contamination event and a new multiple population–based search that uses an evolutionary algorithm (EA) is investigated. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 journal article

Logistic regression analysis to estimate contaminant sources in water distribution systems

Journal of Hydroinformatics, 13(3), 545–557.

By: L. Liu*, A. Sankarasubramanian n & S. Ranjithan n

author keywords: contaminant source; logistic regression analysis; probabilistic characterization; water distribution systems
TL;DR: A rapid estimation methodology based on logistic regression (LR) analysis to estimate the likelihood of any given node as a potential source of contamination and can also serve as a prescreening step for simulation‐optimization methods by reducing the decision space and thus alleviating the computational burden. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2011 journal article

Quantifying the Greenhouse Gas Emission Reductions Associated with Recycling Hot Mix Asphalt

Road Materials and Pavement Design, 12(1), 57–77.

By: J. Levis, M. Barlaz*, A. Tayebali & S. Ranjithan

author keywords: Life-Cycle Assessment; Recycling; Rap; Waste Asphalt Concrete; Global Warming
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2011 journal article

Subsurface characterization using a D-optimality based pilot point method

JOURNAL OF HYDROINFORMATICS, 13(4), 775–793.

By: Y. Jung*, R. Ranjithan n & G. Mahinthakumar n

author keywords: characterization; groundwater inverse modeling; hydraulic conductivity; pilot point method
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 journal article

A SOLUTION FRAMEWORK FOR ENVIRONMENTAL CHARACTERIZATION PROBLEMS

INTERNATIONAL JOURNAL OF HIGH PERFORMANCE COMPUTING APPLICATIONS, 24(3), 265–283.

By: M. Tryby*, B. Mirghani*, G. Mahinthakumar n & S. Ranjithan n

author keywords: inverse problems; simulation optimization; performance analysis; evolutionary algorithms; grid computing
TL;DR: Experience developing a grid-enabled framework for solving environmental inverse problems couples environmental simulation models with global search methods and requires readily available computational resources of the grid for computational tractability is described. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 journal article

An adaptive optimization technique for dynamic environments

ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE, 23(5), 772–779.

By: L. Liu* & S. Ranjithan n

author keywords: Evolutionary algorithms; Adaptive dynamic optimization; Diversity; Adaptability; Contaminant source identification
TL;DR: An EA-based Adaptive Dynamic OPtimization Technique (ADOPT) for solving time-dependent optimization problems and avoids the clustering of individuals in the same region as well as adapts to changing environments by exploiting diverse promising regions in the solution space. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 conference paper

Bayesian Inference of Groundwater Contamination Source

World Environmental and Water Resources Congress 2010. Presented at the World Environmental and Water Resources Congress 2010.

By: X. Jin*, H. Wang n & R. Ranjithan n

Event: World Environmental and Water Resources Congress 2010

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2010 conference paper

Detection of Leaks in Water Distribution System Using Routine Water Quality Measurements

World Environmental and Water Resources Congress 2010. Presented at the World Environmental and Water Resources Congress 2010.

By: J. Kumar n, S. Sreepathi n, E. Brill n, R. Ranjithan n & G. Mahinthakumar n

Event: World Environmental and Water Resources Congress 2010

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2010 journal article

Grid-Enabled Simulation-Optimization Framework for Environmental Characterization

JOURNAL OF COMPUTING IN CIVIL ENGINEERING, 24(6), 488–498.

By: B. Mirghani n, M. Tryby n, R. Ranjithan n, N. Karonis n & K. Mahinthakumar n

author keywords: Simulation models
TL;DR: This paper reports and discusses the development and evaluation of the simulation-optimization approach to grid computing, particularly in environmental characterization involving natural systems, and the large number of such simulations involved. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 conference paper

Identification of Reactive Contaminant Sources in a Water Distribution System under the Conditions of Data Uncertainties

World Environmental and Water Resources Congress 2010. Presented at the World Environmental and Water Resources Congress 2010.

By: J. Kumar n, E. Brill n, G. Mahinthakumar n & R. Ranjithan n

Event: World Environmental and Water Resources Congress 2010

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2010 journal article

Monitoring Design for Source Identification in Water Distribution Systems

JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT-ASCE, 136(6), 637–646.

By: M. Tryby n, M. Propato n & S. Ranjithan n

author keywords: Source identification; Monitoring design; Inverse problem; Experimental design; Water distribution systems; Water infrastructure security; Genetic algorithm; Optimization
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 conference paper

Seamless Integration of Weather and Climate Information in Developing Operational Streamflow Forecasts

World Environmental and Water Resources Congress 2010. Presented at the World Environmental and Water Resources Congress 2010.

By: H. Wang n, S. Arumugam & R. Ranjithan n

Event: World Environmental and Water Resources Congress 2010

UN Sustainable Development Goal Categories
13. Climate Action (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2010 conference paper

Utility of Climate Forecasts in Promoting Inter-Basin Transfer in the North Carolina Triangle Area

World Environmental and Water Resources Congress 2010. Presented at the World Environmental and Water Resources Congress 2010.

By: W. Li n, S. Arumugam & R. Ranjithan n

Event: World Environmental and Water Resources Congress 2010

Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2009 conference paper

A Hybrid Heuristic Search Approach for Contaminant Source Characterization

World Environmental and Water Resources Congress 2009. Presented at the World Environmental and Water Resources Congress 2009.

By: L. Liu n, E. Brill n, G. Mahinthakumar n & S. Ranjithan n

Event: World Environmental and Water Resources Congress 2009

TL;DR: An investigation that builds upon the prior work by introducing a hybrid heuristic search method for the real-time characterization of a contaminant source by integrating the ES-based ADOPT with a logistic regression analysis and a local improvement method to expedite the convergence and possibly solve the problem quickly. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2009 journal article

A genetic algorithm-based procedure for 3D source identification at the Borden emplacement site

Journal of Hydroinformatics, 11(1), 51–64.

By: X. Jin n, G. Mahinthakumar n, E. Zechman* & R. Ranjithan n

author keywords: environmental forensics; evolutionary computation; groundwater source identification; inverse problems
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2009 journal article

A parallel evolutionary strategy based simulation–optimization approach for solving groundwater source identification problems

Advances in Water Resources, 32(9), 1373–1385.

By: B. Mirghani n, K. Mahinthakumar n, M. Tryby n, R. Ranjithan n & E. Zechman*

author keywords: Evolutionary algorithms; Inverse problems; Parallel simulation-optimization framework; Groundwater source identification problem; High performance computing
TL;DR: This paper adopts the use of a simulation–optimization approach that couples a numerical pollutant-transport simulation model with evolutionary search algorithms for solution of the inverse problem of groundwater source identification. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2009 journal article

Application of Artificial Neural Networks for Estimating Dynamic Modulus of Asphalt Concrete

Transportation Research Record: Journal of the Transportation Research Board, 2127(1), 173–186.

By: M. Far n, B. Underwood n, S. Ranjithan n, Y. Kim n & N. Jackson

TL;DR: Outcomes from a research effort to develop models for estimating the dynamic modulus (|E*|) of hot-mix asphalt (HMA) layers on long-term pavement performance test sections show that the predicted and measured |E* | values are in close agreement. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2009 conference paper

Characterizing Reactive Contaminant Sources in a Water Distribution System

World Environmental and Water Resources Congress 2009. Presented at the World Environmental and Water Resources Congress 2009.

By: J. Kumar n, E. Brill n, G. Mahinthakumar n & R. Ranjithan n

Event: World Environmental and Water Resources Congress 2009

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2009 journal article

Contaminant Source Identification in Water Distribution Networks Under Conditions of Demand Uncertainty

ENVIRONMENTAL FORENSICS, 10(3), 253–263.

By: P. Vankayala n, A. Sankarasubramanian n, S. Ranjithan n & G. Mahinthakumar n

author keywords: contaminant source identification; water distribution system; noisy genetic algorithms; uncertainty; optimization simulation
TL;DR: Results show that noisy GA is more robust and is less computationally expensive than stochastic GA in solving the source identification problem and the autoregressive demand uncertainty model better represents the uncertainty in the source Identification process than the Gaussian model. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2009 journal article

Evolutionary Computation-Based Methods for Characterizing Contaminant Sources in a Water Distribution System

Journal of Water Resources Planning and Management, 135(5), 334–343.

By: E. Zechman n & S. Ranjithan n

TL;DR: The findings of an ongoing research investigation that develops and tests an evolutionary algorithm-based flexible and generic procedure, which is structured within a simulation-optimization paradigm, are reported. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: NC State University Libraries, NC State University Libraries, Crossref
Added: August 6, 2018

2009 journal article

Use of Life-Cycle Analysis To Support Solid Waste Management Planning for Delaware

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 43(5), 1264–1270.

By: P. Kaplan n, S. Ranjithan n & M. Barlaz n

MeSH headings : Conservation of Natural Resources / economics; Cost-Benefit Analysis; Delaware; Environmental Pollutants; Greenhouse Effect; Models, Chemical; Planning Techniques; Refuse Disposal / economics; Refuse Disposal / methods; Uncertainty; Waste Management / economics; Waste Management / methods
TL;DR: The results show that implementing a landfill diversion strategy for only a portion of the population is most cost-effective for meeting a county-specific landfill diversion target, and implementation of waste-to-energy offers the mostcost-effective opportunity for GHG emissions reductions. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 conference paper

Adaptive Contamination Source Identification in Water Distribution Systems Using an Evolutionary Algorithm-based Dynamic Optimization Procedure

Water Distribution Systems Analysis Symposium 2006. Presented at the Eighth Annual Water Distribution Systems Analysis Symposium (WDSA).

By: L. Liu n, E. Zechman n, E. Brill, Jr., G. Mahinthakumar n, S. Ranjithan n & J. Uber*

Event: Eighth Annual Water Distribution Systems Analysis Symposium (WDSA)

TL;DR: A new multi population-based search using an evolutionary algorithm (EA) that at any time represents the solution state that best matches the available observations that is demonstrated for a contamination source identification problem in an illustrative water distribution network. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2008 conference paper

Addressing Non-uniqueness in a Water Distribution Contaminant Source Identification Problem

Water Distribution Systems Analysis Symposium 2006. Presented at the Eighth Annual Water Distribution Systems Analysis Symposium (WDSA).

By: E. Zechman n, E. Brill, Jr., G. Mahinthakumar n, S. Ranjithan n & J. Uber*

Event: Eighth Annual Water Distribution Systems Analysis Symposium (WDSA)

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2008 journal article

Backcalculation of Dynamic Modulus from Resilient Modulus of Asphalt Concrete with an Artificial Neural Network

TRANSPORTATION RESEARCH RECORD, (2057), 107–113.

By: A. Lacroix, Y. Kim n & S. Ranjithan n

TL;DR: The population of a database of measured dynamic moduli with the corresponding predicted resilient moduli to train an artificial neural network (ANN) is proposed and the dynamic modulus predicted from the measured resilient modulus with the trained ANN were found to be reasonable compared with the measured dynamicmoduli. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 conference paper

Contaminant Source Characterization Using Logistic Regression and Local Search Methods

World Environmental and Water Resources Congress 2008. Presented at the World Environmental and Water Resources Congress 2008.

By: L. Liu n, E. Brill, Jr., G. Mahinthakumar n & S. Ranjithan n

Event: World Environmental and Water Resources Congress 2008

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2008 chapter

Flexible Pavement Condition Evaluation Using Deflection Basin Parameters and Dynamic Finite Element Analysis Implemented by Artificial Neural Networks

In S. Tayabji & E. Lukanen (Eds.), Nondestructive Testing of Pavements and Backcalculation of Moduli: Third Volume (pp. 514–530).

By: Y. Kim n, Y. Lee* & S. Ranjithan n

Ed(s): S. Tayabji & E. Lukanen

author keywords: pavements; FWD; deflection basin parameter; backcalculation; artificial neural network (ANN); layer moduli; base damage index; shape factor; AREA
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: April 10, 2021

2008 conference paper

Source Identification for Contamination Events Involving Reactive Contaminants

World Environmental and Water Resources Congress 2008. Presented at the World Environmental and Water Resources Congress 2008.

By: J. Kumar n, E. Brill n, S. Ranjithan n, G. Mahinthakumar n & J. Uber*

Event: World Environmental and Water Resources Congress 2008

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2007 journal article

Closure to "Optimal design of redundant water distribution networks using a cluster of workstations" by Sujay V. Kumar, Troy A. Doby, John W. Baugh Jr., E. Downey Brill, and S. Ranji Ranjithan

Journal of Water Resources Planning and Management, 133(6), 580–581.

By: S. Kumar n, T. Doby n, J. Baugh n, E. Brill n & S. Ranjithan n

Contributors: S. Kumar n, T. Doby n, J. Baugh Jr., E. Brill n & S. Ranjithan n

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: NC State University Libraries, NC State University Libraries, ORCID
Added: August 6, 2018

2007 conference paper

Considering Demand Variability and Measurement Uncertainties in Adaptive Source Characterization in Water Distribution Networks

World Environmental and Water Resources Congress 2007. Presented at the World Environmental and Water Resources Congress 2007.

By: L. Liu n, E. Brill, Jr., G. Mahinthakumar n, J. Uber*, E. Zechman n & S. Ranjithan n

Event: World Environmental and Water Resources Congress 2007

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2007 chapter

Cyberinfrastructure for Contamination Source Characterization in Water Distribution Systems

In Y. Shi, G. D. van Albada, J. Dongarra, & P. M. A. Sloot (Eds.), Computational Science – ICCS 2007 (pp. 1058–1065).

By: S. Sreepathi n, K. Mahinthakumar n, E. Zechman n, R. Ranjithan n, D. Brill n, X. Ma n, G. von Laszewski*

Ed(s): Y. Shi, G. van Albada, J. Dongarra & P. Sloot

TL;DR: This paper focuses on the development of specific middleware components of the cyberinfrastructure that enables efficient seamless execution of the application core in a grid environment. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2007 conference paper

Evaluation of Non-Uniqueness in Contaminant Source Characterization Based on Sensors with Event Detection Methods

World Environmental and Water Resources Congress 2007. Presented at the World Environmental and Water Resources Congress 2007.

By: J. Kumar n, E. Zechman n, E. Brill n, G. Mahinthakumar n, S. Ranjithan n & J. Uber*

Event: World Environmental and Water Resources Congress 2007

TL;DR: An evolutionary algorithm-based procedure for source characterization and for assessing nonuniqueness by generating a set of maximally different alternatives is extended here to characterize a contaminant source and any non-uniqueness arising by using sensor information processed through different event detection methods. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2007 conference paper

Evolutionary Algorithms-Based Grid Computational Framework for Solving Groundwater Characterization Problems

World Environmental and Water Resources Congress 2007. Presented at the World Environmental and Water Resources Congress 2007.

By: B. Mirghani n, M. Tryby n, R. Ranjithan n & K. Mahinthakumar n

Event: World Environmental and Water Resources Congress 2007

Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2007 journal article

Evolutionary computation-based approach for model error correction and calibration

Advances in Water Resources, 30(5), 1360–1370.

By: E. Zechman n & S. Ranji Ranjithan n

author keywords: evolutionary computation; calibration; model error correction; genetic programming
TL;DR: A new approach is presented that addresses both parameter error and model structural error to improve the predictive capabilities of a model and can be applied to a broad array of mechanistic models. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2007 journal article

Generating Alternatives Using Evolutionary Algorithms for Water Resources and Environmental Management Problems

Journal of Water Resources Planning and Management, 133(2), 156–165.

By: E. Zechman n & R. Ranjithan n

TL;DR: Alternatives with maximal differences in the decision variable values are expected to perform differently with respect to the unmodeled issues, providing valuable choices when making decisions. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: NC State University Libraries, NC State University Libraries, Crossref
Added: August 6, 2018

2007 conference paper

Monitoring Sensor Network Design for Water Distribution Source Inversion Problems

World Environmental and Water Resources Congress 2007. Presented at the World Environmental and Water Resources Congress 2007.

By: M. Tryby n, M. Propato & R. Ranjithan n

Event: World Environmental and Water Resources Congress 2007

Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2007 journal article

Parallel Performance Modeling using a Genetic Programming-based Error Correction Procedure

SIMULATION, 83(7), 515–527.

By: K. Raghavachar n, G. Mahinthakumar n, P. Worley*, E. Zechman* & R. Ranjithan n

author keywords: error correction procedure; genetic programming; performance modeling
TL;DR: This approach uses a systematic model error-correction procedure that uses evolutionary algorithms to find an error correction term to augment the eXisting model and shows that it adequately captures machine dependent characteristics. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2006 chapter

An Adaptive Cyberinfrastructure for Threat Management in Urban Water Distribution Systems

In V. N. Alexandrov, G. D. Albada, P. M. A. Sloot, & J. Dongarra (Eds.), Computational Science – ICCS 2006 (pp. 401–408).

By: K. Mahinthakumar n, G. von Laszewski*, R. Ranjithan n, D. Brill n, J. Uber*, K. Harrison*, S. Sreepathi n, E. Zechman n

Ed(s): V. Alexandrov, G. Albada, P. Sloot & J. Dongarra

TL;DR: The development of an adaptive cyberinfrastructure system facilitated by a dynamic workflow design such that the measurement system, the analytical modules and the computing resources can mutually adapt and steer each other. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: NC State University Libraries, NC State University Libraries, Crossref
Added: August 6, 2018

2006 journal article

Conjunctive use of models to design cost-effective ozone control strategies

JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION, 56(6), 800–809.

By: J. Fu*, E. Brill n & S. Ranjithan n

MeSH headings : Air Pollution / prevention & control; Environmental Monitoring; Models, Theoretical; Nitrogen Oxides / analysis; Organic Chemicals / analysis; Oxidants, Photochemical / analysis; Ozone / analysis; Volatilization
TL;DR: This study presents a new approach for designing air quality management strategies; a simpleAir quality model is used conjunctively with a complex air quality model to obtain low-cost management strategies. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2006 journal article

Optimal design of redundant water distribution networks using a cluster of workstations

Journal of Water Resources Planning and Management, 132(5), 374–384.

By: S. Kumar n, T. Doby n, J. Baugh n, E. Brill n & S. Ranjithan n

Contributors: S. Kumar n, T. Dovy, J. Baugh Jr., E. Brill n & S. Ranjithan n

TL;DR: It is concluded that a GA-based approach to obtaining cost-effective, redundant solutions for the least-cost design of looped pipe networks can be effectively used on a heterogeneous network of nondedicated workstations. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: NC State University Libraries, NC State University Libraries, ORCID
Added: August 6, 2018

2005 conference paper

A Genetic Programming-Based Surrogate Model Development and Its Application to a Groundwater Source Identification Problem

Impacts of Global Climate Change. Presented at the World Water and Environmental Resources Congress 2005.

By: E. Zechman n, B. Mirghani n, G. Mahinthakumar n & S. Ranjithan n

Event: World Water and Environmental Resources Congress 2005

TL;DR: This paper investigates a groundwater source identification problem in which chemical signals at observation wells are used to reconstruct the pollution loading scenario using a simulation-optimization approach that uses a genetic algorithm to conduct the search. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2005 conference paper

Investigation and Demonstration of an Evolutionary Computation-Based Model Correction Procedure for a Numerical Simulation Model

Impacts of Global Climate Change. Presented at the World Water and Environmental Resources Congress 2005.

By: E. Zechman n, G. Mahinthakumar n & S. Ranjithan n

Event: World Water and Environmental Resources Congress 2005

Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2005 conference paper

Multipopulation cooperative coevolutionary programming (MCCP) to enhance design innovation

In H.-G. Beyer (Ed.), Proceedings of the 2005 conference on Genetic and evolutionary computation - GECCO '05.

By: E. Zechman n & S. Ranjithan n

Ed(s): H. Beyer

Event: the 2005 conference at Washington, D.C., USA on June 25-29, 2005

TL;DR: An evolutionary algorithm called Multipopulation Cooperative Coevolutionary Programming (MCCP) is described, that extends Genetic Programming to search for a set of maximally different solutions for program induction problems to yield potentially more creative designs. (via Semantic Scholar)
UN Sustainable Development Goal Categories
9. Industry, Innovation and Infrastructure (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: August 28, 2020

2005 journal article

Role of evolutionary computation in environmental and water resources systems analysis

Journal of Water Resources Planning and Management, 131(1), 02-.

By: S. Ranjithan n

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2004 journal article

A Procedure for Life-Cycle-Based Solid Waste Management with Consideration of Uncertainty

Journal of Industrial Ecology, 8(4), 155–172.

By: P. Kaplan n, M. Barlaz n & S. Ranjithan n

Sources: Crossref, NC State University Libraries
Added: January 19, 2020

2004 journal article

An evolutionary algorithm to generate alternatives (EAGA) for engineering optimization problems

Engineering Optimization, 36(5), 539–553.

By: E. Zechman* & S. Ranjithan

author keywords: genetic algorithm; evolutionary algorithm; modeling to generate alternatives; niching
TL;DR: The EAGA promises to be a flexible procedure for exploring alternative solutions that could assist when making decisions for real engineering optimization problems riddled with unmodeled or unquantified issues. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2004 conference paper

Generating Urban Watershed Management Alternatives Using Evolutionary Algorithms

Critical Transitions in Water and Environmental Resources Management. Presented at the World Water and Environmental Resources Congress 2004.

By: J. Dorn n & S. Ranjithan n

Event: World Water and Environmental Resources Congress 2004

Sources: Crossref, NC State University Libraries
Added: February 24, 2020

2003 chapter

Are the "best" solutions to a real optimization problem always found in the noninferior set? Evolutionary algorithm for generating alternatives (EAGA)

In Genetic and evolutionary computation--GECCO 2003: Genetic and Evolutionary Computation Conference, Chicago, IL, USA, July 12-16, 2003: Proceedings (Vol. 2724, pp. 1622–1623).

By: E. Zechman n & S. Ranjithan n

TL;DR: EAs continue to offer an effective, powerful, and sometimes exclusive way to search for solutions to real optimization problems, but whether the results represent the “best” choices for making decisions about a solution to a real problem is questionable. (via Semantic Scholar)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions (OpenAlex)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2003 journal article

Comparing recycling, composting and landfills

BioCycle, 44(9), 60-.

By: M. Barlaz, P. Kaplan, S. Ranjithan & R. Rynk

Source: NC State University Libraries
Added: August 6, 2018

2003 journal article

Detention pond design and land use planning for watershed management

Journal of Water Resources Planning and Management, 129(2), 98–106.

By: L. Harrell & S. Ranjithan

Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2003 journal article

Evaluating environmental impacts of solid waste management alternatives

BioCycle, 44(10), 52–56.

By: M. Barlaz, P. Kaplan, S. Ranjithan & R. Rynk

Source: NC State University Libraries
Added: August 6, 2018

2003 chapter

Evolutionary multiobjective optimization in watershed water quality management

In Evolutionary multi-criterion optimization: Second international conference, EMO 2003, Faro, Portugal, April 8-11, 2003: proceedings (Vol. 2632, pp. 692–706).

By: J. Dorn n & S. Ranjithan n

TL;DR: The results indicate that NSGA-II offers a promising approach to solving this complex, real-world MO watershed management problem. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2003 chapter

Using the asphalt pavement layer condition assessment program - Case studies

In Pavement assessment, monitoring and evaluation 2003 (pp. 66–75).

By: B. Xu*, S. Ranjithan n & Y. Kim n

Source: NC State University Libraries
Added: August 6, 2018

2002 conference paper

Evaluation of the Constraint Method-Based Multiobjective Evolutionary Algorithm (CMEA) for a Three-Objective Optimization Problem

In W. B. Langdon, E. Cantu-Paz, K. Mathias, R. Roy, D. Davis, R. Poli, … N. Jonoska (Eds.), Proceedings of the Genetic and Evolutionary Computation Conference, GECCO 2002 (pp. 431–438). New York: Morgan Kaufmann.

By: S. Kumar & S. Ranjithan

Ed(s): W. Langdon, E. Cantu-Paz, K. Mathias, R. Roy, D. Davis, R. Poli, K. Balakrishnan, V. Honavar ...

Event: Genetic and Evolutionary Computation Conference, GECCO 2002 at New York on July 9-13, 2002

Source: NC State University Libraries
Added: October 1, 2021

2002 journal article

Life-Cycle-based Solid Waste Management. II: Illustrative Applications

Journal of Environmental Engineering, 128(10), 993–1005.

By: E. Solano*, R. Dumas*, K. Harrison n, S. Ranjithan n, M. Barlaz n & E. Downey Brill n

Sources: NC State University Libraries, Crossref, NC State University Libraries
Added: August 6, 2018

2002 journal article

Life-cycle-based solid waste management. I: Model development

Journal of Environmental Engineering (New York, N.Y.), 128(10), 981–992.

By: E. Solano*, S. Ranjithan n, M. Barlaz n & E. Brill n

Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2002 chapter

New condition assessment procedure for asphalt pavement layers using failing weight deflectometer deflections

In Assessing and evaluating pavements, 2002 (pp. 57–69).

By: B. Xu*, S. Ranjithan n & Y. Kim n

Source: NC State University Libraries
Added: August 6, 2018

2002 chapter

New relationships between failing weight deflectometer deflections and asphalt pavement layer condition indicators

In Assessing and evaluating pavements, 2002 (pp. 48–56).

By: B. Xu*, S. Ranjithan n & Y. Kim n

Source: NC State University Libraries
Added: August 6, 2018

2001 chapter

Constraint method-based evolutionary algorithm (CMEA) for multiobjective optimization

In Evolutionary multi-criterion optimization: First international conference, EMO 2001, Zurich, Switzerland, March 7-9, 2001: Proceedings (Vol. 1993, pp. 299–313).

By: S. Ranjithan n, S. Chetan* & H. Dakshina n

TL;DR: The new procedure, Constraint Method-Based Evolutionary Algorithm (CMEA), presented in this paper is based upon underlying concepts in the constraint method described in the mathematical programming literature and is relatively simple to implement and incorporate into existing implementations of evolutionary algorithm-based optimization procedures. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2001 journal article

Decision support tool for life-cycle-based solid waste management

Journal of Computing in Civil Engineering, 15(1), 44–58.

By: K. Harrison n, R. Dumas n, E. Solano n, M. Barlaz n, E. Brill n & S. Ranjithan n

TL;DR: A new computer-based decision support framework that integrates process models that quantify the life-cycle inventory of a range of pollutants and costs for an extensive municipal solid waste system, an optimization search procedure that identifies strategies that meet cost and environmental objectives and site-specific restrictions, and a user-friendly interface that facilitates utilization of these components by practitioners. (via Semantic Scholar)
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2001 journal article

Genetic algorithm approaches for addressing unmodeled objectives in optimization problems

ENGINEERING OPTIMIZATION, 33(5), 549–569.

By: D. Loughlin n, . Ranjithan n, E. Brill n & J. Baugh n

author keywords: genetic algorithm; multimodal; modeling to generate alternatives; sharing; niching
TL;DR: Two techniques for performing MGA using genetic algorithms (GAs) are investigated and compared and one of these techniques, which uses specialized MGA operators, is shown to produce solutions that are both better in quality and more different. (via Semantic Scholar)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Application of genetic algorithms for the design of ozone control strategies

JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION, 50(6), 1050–1063.

By: D. Loughlin n, . Ranjithan n, J. Baugh n & E. Brill n

Contributors: D. Loughlin n, S. Ranjithan n, J. Baugh n & E. Brill n

MeSH headings : Air Pollution / analysis; Algorithms; Decision Making; Environmental Pollution / prevention & control; Models, Genetic; Oxidants, Photochemical; Ozone; Policy Making; Public Policy
TL;DR: The use of genetic algorithms (GAs) as an alternative optimization approach for developing ozone control strategies is discussed and it is anticipated that such an approach will be practical in the near term for supporting regulatory decision-making. (via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (Web of Science; OpenAlex)
13. Climate Action (Web of Science)
Sources: Web Of Science, ORCID
Added: August 6, 2018

1999 conference paper

Chance-Constrained Genetic Algorithms

In W. Banzhaf, J. Daida, A. E. Eiben, M. H. Garzon, & V. Honavar (Eds.), GECCO-99: Proceedings of the Genetic and Evolutionary Computation Conference (Vol. 1, pp. 369–376). San Francisco, CA: Morgan Kaufmann.

By: D. Loughlin & S. Ranjithan

Ed(s): W. Banzhaf, J. Daida, A. Eiben, M. Garzon & V. Honavar

Event: Genetic and Evolutionary Computation Conference at Orlando, Florida USA on July 13-17, 1999

Source: NC State University Libraries
Added: October 1, 2021

1999 conference paper

Evaluation of Alternative Penalty Function Implementations in a Watershed Management Design Problem

In W. Banzhaf, J. Daida, A. E. Eiben, M. Garzon, & V. Honavar (Eds.), GECCO-99: Proceedings of the Genetic and Evolutionary Computation Conference (Vol. 2, pp. 1551–1558). San Francisco, CA: Morgan Kaufmann.

By: L. Harrell & S. Ranjithan

Ed(s): W. Banzhaf, J. Daida, A. Eiben, M. Garzon & V. Honavar

Event: Genetic and Evolutionary Computation Conference at Orlando, Florida USA on July 13-17, 1999

Source: NC State University Libraries
Added: October 1, 2021

1999 journal article

Life Cycle Management of Municipal Solid Waste

The International Journal of Life Cycle Assessment, 4(4), 195–201.

By: K. Weitz*, M. Barlaz*, R. Ranjithan*, D. Brill n, S. Thorneloe* & R. Ham*

Sources: Crossref, NC State University Libraries
Added: January 19, 2020

1998 journal article

A hybrid optimization approach to thf estimation of distributed parameters in two-dimensional confined aquifers

JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION, 34(4), 909–920.

By: M. Heidari & . Ranjithan n

author keywords: confined aquifer; calibration; optimization; maximum likelihood; genetic algorithm; truncated-Newton Method; automatic differentiation; sensitivity analysis
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1998 conference paper

Development of alternative solid waste management options with economic and environmental considerations: A mathematical modeling approach

International Solid Waste Association 1998 World Congress, Charlotte, NC, Oct. 26-29, 1998, (1998 Oct.).

By: S. Ranjithan, M. Barlaz, E. Brill, R. Dumas, K. Harrison, B. Kosmicki, E. Solano

Source: NC State University Libraries
Added: August 6, 2018

1998 chapter

Dynamic analysis-based approach to determine flexible pavement layer moduli using deflection basin parameters

In Recent pavement research issues (pp. 36–42).

By: Y. Lee*, Y. Kim n & S. Ranjithan n

Source: NC State University Libraries
Added: August 6, 2018

1998 conference paper

Generation of alternative strategies for insightful decision making in watershed management

Water resources and the urban environment: Proceedings of the 25th Annual Conference on Water Resources Planning and Management (ASCE), Chicago, IL, June 7-10, 1998.

By: L. Harrell & S. Ranjithan

Source: NC State University Libraries
Added: August 6, 2018

1998 conference paper

Interactively exploring efficient solid waste management alternatives to meet environmental goals

Coordination: Water resources and environment: Proceedings of special session of ASCE's 25th Annual Conference on Water Resources Planning and Management and the 1998 Annual Conference on Environmental Engineering, June 1998, Chicago, Illinois. Reston, Va.: American Society of Civil Engineers.

By: K. Harrison, S. Ranjithan & . al.

Source: NC State University Libraries
Added: August 6, 2018

1998 chapter

Multiperiod highway improvement and construction scheduling: Model development and application

In Land use and transportation planning and programming applications (pp. 96–104). Washington, DC: Transportation Research Board.

By: W. Eldessouki, N. Rouphail, M. Beja & S. Ranjithan

Source: NC State University Libraries
Added: August 6, 2018

1998 conference paper

Prototype decision support tool for developing tropospheric ozone control strategies

Water resources and the urban environment-98: Proceedings of the 1998 National Conference on Environmental Engineering. ASCE Joint 25th Annual Conference on Water Resources Planning and Management and 1998 National Conference on Environmental Engineering, Chicago, IL, June 7-10,1998. Reston, VA: American Society of Civil Engineers.

By: D. Loughlin, S. Ranjithan, E. Brill, J. Baugh & S. Fine

Source: NC State University Libraries
Added: August 6, 2018

1997 chapter

Generating efficient watershed management strategies using a genetic algorithms-based method

In Aesthetics in the constructed environment: Proceedings of 24th Annual Water Resources Planning and Management Conference Houston, Texas, April 6-9, 1997 (pp. 272–277). New York: American Society of Civil Engineers.

By: L. Harrell & S. Ranjithan

Source: NC State University Libraries
Added: August 6, 2018

1997 conference paper

The Neighborhood Constraint Method: A genetic algorithm-based multiobjective optimization technique

Genetic algorithms: Proceedings of the Seventh International Conference on Genetic Algorithms, East Lansing, Michigan, July 19-23, 1997, 7, 666–673. San Francisco, Calif.: M. Kaufmann.

By: D. Loughlin & S. Ranjithan

Source: NC State University Libraries
Added: August 6, 2018

1996 journal article

Neural network model for the automated control of springback in rebars

IEEE Expert, 11(4), 45–49.

By: P. Dunstan*, S. Ranjithan & L. Bernold n

TL;DR: Neural network models can play a key role in the adaptive control of the cold-bending steel reinforcing bars for concrete structures to save time, prevent serious injuries, and increase productivity. (via Semantic Scholar)
Source: Crossref
Added: April 10, 2021

1995 journal article

Using Genetic Algorithms to Solve a Multiobjective Groundwater Monitoring Problem

Water Resources Research, 31(2), 399–409.

By: S. Cieniawski, J. Eheart & S. Ranjithan

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Crossref
Added: January 24, 2021

1994 journal article

Using genetic algorithms to solve a multiple objective groundwater pollution containment problem

Water Resources Research, 30(5), 1589–1603.

By: B. Ritzel, J. Eheart & S. Ranjithan

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Source: Crossref
Added: April 10, 2021

1993 journal article

Design of lightweight, broad-band microwave absorbers using genetic algorithms

IEEE Transactions on Microwave Theory and Techniques, 41(6), 1024–1031.

By: E. Michielssen*, J. Sajer, S. Ranjithan* & R. Mittra*

Source: Crossref
Added: April 10, 2021

1993 journal article

Engineering applications of neural networks

Journal of Intelligent Manufacturing, 4(1), 1–21.

By: J. Garrett*, M. Case*, J. Hall*, S. Yerramareddy*, A. Herman*, R. Sun*, S. Ranjithan*, J. Westervelt*

author keywords: NEURAL NETWORKS; ENGINEERING APPLICATIONS; ADAPTIVE CONTROL; FEATURE RECOGNITION; DESIGN
TL;DR: This paper describes several prototypical applications of neural network technology to engineering problems, representative of many of the engineering problems for which neural networks are applicable: adaptive control, feature recognition, and design. (via Semantic Scholar)
Source: Crossref
Added: August 28, 2020

1993 journal article

Neural network-based screening for groundwater reclamation under uncertainty

Water Resources Research, 29(3), 563–574.

By: S. Ranjithan, J. Eheart & J. Garrett

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Crossref
Added: August 28, 2020

1992 chapter

Application of Neural Networks to Groundwater Remediation

In R. Allen (Ed.), Expert Systems in Civil Engineering - Knowledge Representation. New York: ASCE.

By: J. Garrett, S. Ranjithan & J. Eheart

Ed(s): R. Allen

Source: NC State University Libraries
Added: October 1, 2021

1992 journal article

Optimal multilayer filter design using real coded genetic algorithms

IEE Proceedings J Optoelectronics, 139(6), 413.

By: E. Michielssen*, S. Ranjithan* & R. Mittra*

author keywords: GENETIC ALGORITHMS; MULTILAYER FILTERS
Source: Crossref
Added: August 28, 2020

1991 conference paper

A Feedback Neural Network Approach to Optimization: An Application in Groundwater Remediation Design

In C. H. Dagli (Ed.), Intelligent Engineering Systems Through Artificial Neural Networks: Proceedings of the Int. Conference on Artificial Neural Networks in Engineering, St. Louis, Missouri.

By: S. Ranjithan, J. Garrett & J. Eheart

Ed(s): C. Dagli

Event: International Conference on Artificial Neural Networks in Engineering at St. Louis, Missouri on November 10-12, 1991

Source: NC State University Libraries
Added: October 1, 2021

1990 journal article

MGA: a decision support system for complex, incompletely defined problems

IEEE Transactions on Systems, Man, and Cybernetics, 20(4), 745–757.

By: E. Brill n, J. Flach*, L. Hopkins* & S. Ranjithan*

TL;DR: The logic of MGA is presented in the context of concerns about the limitations of mathematical models and the human decision-makers who use them, and arguments and experimental evidence are presented to support the assumption that the human-machine decision-making system will perform better when the human is presented with a few different alternatives. (via Semantic Scholar)
UN Sustainable Development Goal Categories
16. Peace, Justice and Strong Institutions (OpenAlex)
Source: Crossref
Added: August 28, 2020

1987 journal article

The design of bus route systems — An interactive location-allocation approach

Transportation, 14(3), 253–270.

By: D. Van Oudheusden*, S. Ranjithan* & K. Singh*

Source: Crossref
Added: April 10, 2021

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