Browsing Civil and Environmental Engineering by Title
Now showing items 516-535 of 779
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Multi-Objective Optimization Model for Inspection Scheduling of Sewer Pipelines
( American Society of Civil Engineers (ASCE) , 2019 , Article)Inspection activities play an important role in the operation and maintenance (O&M) strategy in municipalities. Efficient O&M strategies can help in making informed decisions based on the actual condition of pipelines ... -
Multi-tier method using infrared photography and GPR to detect and locate water leaks
( Elsevier , 2016 , Article Review)This paper presents newly developed method for detecting and locating leaks in water distribution networks utilizing two detection techniques; ground penetrating radar (GPR) and infrared photography (IR). The experimental ... -
Multiattribute Utility Theory Deployment in Sewer Defects Assessment
( American Society of Civil Engineers (ASCE) , 2018 , Article)Assessing the condition of sewer pipelines is a backbone process to plan for rehabilitation and maintenance work. The closed circuit-television (CCTV) method is the widely adopted method to record the inner condition of ... -
Multiobjective optimization model for scheduling of construction projects under extreme weather
( Taylor and Francis Ltd. , 2016 , Article)Extreme weather significantly impacts construction schedules and costs and can be a source of schedule delays and budget overruns. A multi-objective optimization model, presented herein for the scheduling of construction ... -
MXene (Ti3 C2 Tx )/Cellulose Acetate Mixed-Matrix Membrane Enhances Fouling Resistance and Rejection in the Crossflow Filtration Process
( MDPI , 2022 , Article)Obstacles in the membrane-based separation field are mainly related to membrane fouling. This study involved the synthesis and utilization of covalently crosslinked MXene/cellulose acetate mixed matrix membranes with MXene ... -
Nano-scale moisture damage evaluation of carbon nanotube-modified asphalt
( Elsevier , 2018 , Article)© 2018 Elsevier Ltd In addition to polymer modification, the use of nanomaterials to improve different asphalt properties has recently been found to be beneficial. However, the potential of nanomaterials in pavement ... -
Nanoparticles functionalized ceramic membranes: fabrication, surface modification, and performance
( Springer Science and Business Media Deutschland GmbH , 2021 , Article Review)Membrane technologies are used intensively for desalination and wastewater treatment. Water filtration using ceramic membranes exhibited high performance compared with polymeric membranes due to various properties such as ... -
Nanoscale evaluation of multi-walled carbon nanotube’s performance on resisting oxidization of asphalt
( Trans Tech Publications Ltd , 2019 , Conference Paper)Nanotechnology has contributed significantly to different subfields of the construction industry, including asphalt pavement engineering. The improved properties and new functionalities of the nanomaterials have provided ... -
NAVIGATION IN INDOOR VOXEL MODELS
( Copernicus GmbH , 2019 , Conference Paper)The paper proposes to use voxel models of building interiors to perform indoor navigation. The algorithms can be purely geometrical, not relying on semantic information about different building elements, such as floors, ... -
Near Surface Embedded Application for FRCM Strengthening of RC Beams in Flexure
( Qatar Univesrity Press , 2020 , Conference Paper)In this paper, the efficacy of a recent strengthening technique, referred to as Near Surface Embedded (NSE), has been investigated for flexural strengthening of Reinforced Concrete (RC) beams using Fabric Reinforced ... -
Near surface embedded-FRCM for flexural strengthening of reinforced concrete beams
( Elsevier Ltd , 2019 , Article)Fibre reinforced cementitious matrix (FRCM) systems are mostly externally bonded (EB) for the strengthening of reinforced concrete (RC) and masonry structures. In this paper, the relatively new concept of near-surface ... -
New model for estimating geometric tortuosity of variably saturated porous media using 3D synchrotron microcomputed tomography imaging
( John Wiley and Sons Inc , 2021 , Article)Tortuosity has a significantimpact on flow and transport characteristics of porous media and plays a major role in many applications such as enhanced oil recovery, contaminant transport in aquifers, and fuel cells. Most ... -
Nonexplosive Deconstruction of Steel Girder Highway Bridges
( American Society of Civil Engineers (ASCE) , 2017 , Article)While the transportation system of the United States rapidly ages and expands, there is increasing demand for the demolition, replacement, modification, or rehabilitation of existing bridges; all of these actions require ... -
Nonlinear forced vibrations of multi-scale epoxy/CNT/fiberglass truncated conical shells and annular plates via 3D Mori-Tanaka scheme
( Techno-Press , 2020 , Article)In the context of classic conical shell formulation, nonlinear forced vibration analysis of truncated conical shells and annular plates made of multi-scale epoxy/CNT/fiberglass composites has been presented. The composite ... -
Nonparametric structural damage detection algorithm for ambient vibration response: Utilizing artificial neural networks and self-organizing maps
( American Society of Civil Engineers (ASCE) , 2016 , Article)This study presentes a new nonparametric structural damage detection algorithm that integrates self-organizing maps with a pattern-recognition neural network to quantify and locate structural damage. In this algorithm, ... -
A novel agent-based framework for evaluating pedestrian safety at unsignalized mid-block crosswalks
( Elsevier Ltd , 2021 , Article)A critical safety problem in road networks is the conflicts on unsignalized crosswalks. Thus, a proactive approach to assess pedestrian safety performance is required. Simulating the microscopic road user behavior in a ... -
Novel and robust machine learning approach for estimating the fouling factor in heat exchangers
( Elsevier , 2022 , Article)The fouling factor (Rf) is an operating index for measuring an undesirable effect of solids’ deposition on the heat transfer ability of heat exchangers. Accurate prediction of the fouling factor helps appropriate scheduling ... -
Novel Framework for Vibration Serviceability Assessment of Stadium Grandstands Considering Durations of Vibrations
( American Society of Civil Engineers (ASCE) , 2018 , Article)Annoying vibrations in grandstand structures have been receiving more attention due to the increasing slenderness of the architectural components and the complexity of the crowd loading for engineers. The vibration ... -
Nse/eb-frcm technique for strengthening of rc beams in shear
( University of Cantabria - Building Technology R&D Group , 2020 , Conference Paper)This paper presents experimental results on the strengthening of reinforced concrete (RC) beams using 'hybrid near surface embedded/externally bonded' NSE/EB technique for fabric reinforced cementitious matrix (FRCM). Six ... -
Numerical Evaluation of Dynamic Response by Using Modified Newmark’s Method
( Jordan University of Science and Technology , 2019 , Article)It is well known that the Newmark’s method is considered one of the most popular methods for structural dynamic analysis. In this study, starting from the basic Newmark’s method, a new accurate method is investigated and ...