Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Physical Sciences and Mathematics (14)
- Environmental Sciences (9)
- Social and Behavioral Sciences (6)
- Earth Sciences (4)
- Electrical and Computer Engineering (3)
-
- Emergency and Disaster Management (3)
- Environmental Studies (3)
- Public Affairs, Public Policy and Public Administration (3)
- Water Resource Management (3)
- Applied Mathematics (2)
- Power and Energy (2)
- Sustainability (2)
- Transportation Engineering (2)
- Urban Studies and Planning (2)
- Biomedical Engineering and Bioengineering (1)
- Economics (1)
- Education (1)
- Electrical and Electronics (1)
- Electromagnetics and Photonics (1)
- Environmental Health and Protection (1)
- Environmental Indicators and Impact Assessment (1)
- Fluid Dynamics (1)
- Geophysics and Seismology (1)
- Materials Science and Engineering (1)
- Mathematics (1)
- Mechanical Engineering (1)
- Other Physical Sciences and Mathematics (1)
- Keyword
-
- South Texas (5)
- Energy dissipation (4)
- Friction (4)
- Machine learning (4)
- Streamflow (4)
-
- Acoustic emission (3)
- Energy harvesting (3)
- Ensemble learning (3)
- Lower Rio Grande Valley (3)
- Phenol (3)
- Reconstruction (3)
- Rigid pavement (3)
- Sensor (3)
- Urban runoff (3)
- Vibration (3)
- Vibration control (3)
- Water quality (3)
- Acceptance behavior (2)
- Autonomous vehicle (2)
- Clay (2)
- Compressive strength (2)
- Construction methods (2)
- Deep learning (2)
- Dendroclimatology (2)
- Durability (2)
- Electromagnetic energy harvester (2)
- Endogeneity (2)
- Flooding (2)
- Geopolymer (2)
- Graphene oxide (2)
- Publication Year
- Publication Type
Articles 121 - 138 of 138
Full-Text Articles in Civil Engineering
Construction Methods Used For Controlling Temperature In Mass Concrete Structures, Mohamed Abdel-Raheem, Ofsman Quintana, Melissa Morales, Yahaira Marroquin-Villa, Dalinda Ramos, Sylvia Hernandez
Construction Methods Used For Controlling Temperature In Mass Concrete Structures, Mohamed Abdel-Raheem, Ofsman Quintana, Melissa Morales, Yahaira Marroquin-Villa, Dalinda Ramos, Sylvia Hernandez
Civil Engineering Faculty Publications
The hydration of cement can release a substantial amount of heat that can be problematic in mass concrete structure. This heat of hydration (HH) can produce thermal stresses that can crack the concrete and compromise the integrity of the structure leading to its failure. Throughout the years, different methods have been developed in order to mitigate the negative effects of the HH on mass concrete structures. This study presents a comprehensive review of the previous methods documented in the literature that have been utilized in controlling the temperature rise due to the HH in mass concreting. The reviewed methods were …
Initial Investigation Of Generating Electricity From Concrete, Mohamed Abdel-Raheem, Ofsman Quintana
Initial Investigation Of Generating Electricity From Concrete, Mohamed Abdel-Raheem, Ofsman Quintana
Civil Engineering Faculty Publications
Cement heat of hydration (HH) can be problematic especially in mass concrete structures as it causes thermal stresses that can lead to failure. Previous and current research has focused on minimizing the HH and mitigating its effects. The methods currently used for treating the HH in mass concreting varies between using: adding supplementary material to concrete, precooling of aggregates and mixing water, post-cooling of concrete, insulation of concrete members, and placement of concrete in thin lifts. These methods result in adding more cost and time to the construction project. This research sheds the light on a new approach in treating …
A Two-Dimensional Finite Element Model Of The Grain Boundary Based On Thermo-Mechanical Strain Gradient Plasticity, Yooseob Song, George Z. Voyiadjis
A Two-Dimensional Finite Element Model Of The Grain Boundary Based On Thermo-Mechanical Strain Gradient Plasticity, Yooseob Song, George Z. Voyiadjis
Civil Engineering Faculty Publications
In this work, a two-dimensional finite element model for the grain boundary flow rule is developed based on the thermo-mechanical gradient-enhanced plasticity theory. The proposed model is temperature-dependent. A special attention is given to physical and micromechanical nature of dislocation interactions in combination with thermal activation on stored and dissipated energy. Thermodynamic conjugate microforces are decomposed into energetic and dissipative components. Correspondingly, two different grain boundary material length scales are present in the proposed model. Finally, numerical examples are solved in order to explore characteristics of the proposed grain boundary flow rule.
Probabilistic Analysis And Resistance Factor Calibration For Deep Foundation Design Using Monte Carlo Simulation, Thuy Vu, Erik Loehr, Douglas Smith
Probabilistic Analysis And Resistance Factor Calibration For Deep Foundation Design Using Monte Carlo Simulation, Thuy Vu, Erik Loehr, Douglas Smith
Civil Engineering Faculty Publications
The method of incorporating the sources of parameter uncertainty is crucial when conducting probabilistic analysis for service limit state (SLS) design of a deep foundation. This paper describes the method of using Monte Carlo simulation for probabilistic analyses and for calibration of resistance factors of drilled shafts at SLS. The paper presents discussions on the finding of an impossible case, where the different combinations of load, variability of soil strength and target probability of failure made it impossible to calibrate the SLS resistance factors. Resistance factors for drilled shafts in shale are introduced, and were found to be responsive to …
Effect Of Aggregate Mineralogy And Concrete Microstructure On Thermal Expansion And Strength Properties Of Concrete, Jinwoo An, S. Sonny Kim, Boo Hyun Nam, Stephan A. Durham
Effect Of Aggregate Mineralogy And Concrete Microstructure On Thermal Expansion And Strength Properties Of Concrete, Jinwoo An, S. Sonny Kim, Boo Hyun Nam, Stephan A. Durham
Civil Engineering Faculty Publications
Aggregate type and mineralogy are critical factors that influence the engineering properties of concrete. Temperature variations result in internal volume changes could potentially cause a network of micro-cracks leading to a reduction in the concrete's compressive strength. The study specifically studied the effect of the type and mineralogy of fine and coarse aggregates in the normal strength concrete properties. As performance measures, the coefficient of thermal expansion (CTE) and compressive strength were tested with concrete specimens containing different types of fine aggregates (manufactured and natural sands) and coarse aggregates (dolomite and granite). Petrographic examinations were then performed to determine the …
Hydrologic Impacts Of Bioswale Porous Media On Parking Lot Drainage, Jungseok Ho, James Jihoon Kang
Hydrologic Impacts Of Bioswale Porous Media On Parking Lot Drainage, Jungseok Ho, James Jihoon Kang
Civil Engineering Faculty Publications
Bioswales are stormwater control structures designed stormwater runoff volume and filter stormwater solids and pollutant from surface runoff. Bioswale generally consists of sloped surface ground with native wetland plants to lead stormwater percolation and infiltration, porous media to allow for stormwater retention and stormwater contaminant filtration, and stormwater drain conduit under the porous media. In this study, we monitored the bioswale evaluation factors of stormwater total volume reduction, peak flow rate reduction, and peak time attenuation. It is concluded that, based on a total of 29 monitoring of storm events, pumice is a hydrologically best performing material for the bioswale …
An Expert System For Local Flood Response Coordination And Training, Xiaoyin Zhang, Gary Moynihan, Andrew Ernest, Joseph Gutenson
An Expert System For Local Flood Response Coordination And Training, Xiaoyin Zhang, Gary Moynihan, Andrew Ernest, Joseph Gutenson
Civil Engineering Faculty Publications
Flood response is an essential component of flood management to rescue people, reduce property loss, and limit the impact to the environment. Effective flood response depends on a sound coordination structure with unified responsibilities, smooth communications, and scalable response plans. An efficient coordination system, including command and management structures, is built on a thorough understanding of the responsibilities and actions of each role for delivering the response core capabilities. Collecting, sharing, using, and handling the knowledge require great efforts in knowledge management. To further enhance such efforts, an expert system for local flood response coordination and training (LFRS) was developed …
Development Of Disaster Management In Turkey: From 1999 Kocaeli Earthquake To 2011 Van Earthquake, Mert Tolon, Kağan Cenk Mızrak
Development Of Disaster Management In Turkey: From 1999 Kocaeli Earthquake To 2011 Van Earthquake, Mert Tolon, Kağan Cenk Mızrak
Civil Engineering Faculty Publications
The natural disasters that have occurred in Turkey are categorized as % 61 earthquakes, followed by landslides, floods, rock falls, fires and storms. Between the years of 1903 and 2000, there have been nearly 150 earthquakes in Turkey which led to damage and this is a challenge for Turkey. The management and plans of these natural disasters in Turkey were first developed in 1959. In 1999, with the magnitude of 7.4, The Kocaeli and Duzce earthquakes affected a region of Turkey that constitutes % 23 of the country’s population. After that, in 2000 necessary laws have been prepared and enacted. …
Factors Affecting Social Sustainability In Highway Projects In Missouri, Mohamed Abdel-Raheem, Charles Ramsbottom
Factors Affecting Social Sustainability In Highway Projects In Missouri, Mohamed Abdel-Raheem, Charles Ramsbottom
Civil Engineering Faculty Publications
Sustainability focuses on the interaction between a given project and the social, environmental, and the economic dimensions of the system enclosing it. The majority of the studies conducted focused mostly on the environmental aspects of sustainability rather than the economic ones, while very few studies discussed the social dimension. Social sustainability promotes the concepts of respect, awareness, diversity, vitality, and responsibility toward the workforce and the society by keeping them healthy and safe from harm during the different phases of a project. Highway projects are one of the most critical infrastructure projects in the construction industry. This is due to …
Investigation On The Effect Of Recycled Asphalt Shingle (Ras) In Portland Cement Mortar, Jinwoo An, Boo Hyun Nam, Heejung Youn
Investigation On The Effect Of Recycled Asphalt Shingle (Ras) In Portland Cement Mortar, Jinwoo An, Boo Hyun Nam, Heejung Youn
Civil Engineering Faculty Publications
Tear-off roofing shingle, referred to as Reclaimed asphalt shingle (RAS), is the byproduct of construction demolition and it is a major solid waste stream in the U.S. Reuse of this byproduct in road construction sector can contribute to the success of materials sustainability as well as landfill conservation. Ground RAS has similar particle distribution as sand and its major component includes aggregate granules, fibers, and asphalt. To promote the beneficial utilization of RAS, this study evaluates the effect of RAS in cement mortar when used as replacement of sand. In addition, the study investigates how cellulose fibers from RAS behave …
Numerical Model Water Quality For Hidalgo County, Texas; Main Drainage System, Jose Orvyl Gonzalez, Grimaldo Carrillo, Jungseok Ho
Numerical Model Water Quality For Hidalgo County, Texas; Main Drainage System, Jose Orvyl Gonzalez, Grimaldo Carrillo, Jungseok Ho
Civil Engineering Faculty Publications
Increasing urbanization, water intake, and human water interaction of drainage canals of the Hidalgo County watershed seals the drainage basin and expands floodplains along the canal-side. Incremental use of drainage systems affects the amounts of nutrients that can cause an exposure to residues of agriculture chemicals, water related parasitic diseases, and fecal diseases. Proper water quality management is crucial for pollutant transport detection, estimation of non-point source discharge, and prediction of pollutant discharge at water endpoints. This research seeks to improve the understanding stormwater quality and quantity that is influenced by the frequency of human-water contacts and associated with treatment …
A Direct Demand Model Of Departure Time And Mode For Intercity Passenger Trips, Fatemeh Nazari, Seyedehsan Seyedabrishami, Amir Reza Mamdoohi
A Direct Demand Model Of Departure Time And Mode For Intercity Passenger Trips, Fatemeh Nazari, Seyedehsan Seyedabrishami, Amir Reza Mamdoohi
Civil Engineering Faculty Publications
Travel demand is well announced as a crucial component of transportation planning. This paper aims to develop a direct demand model, denoting a more acceptable abstraction of reality, for intercity passengers in daily work and leisure trips in Tehran province. The model utilizes combined estimation across the data source, collected in 2011, of travelers originating from the city of Tehran and heading toward two destination clusters: intra-province and inter-province. The paper sketches a way to predict simultaneous choice of departure time and travel mode under the influence of zonal (origin, destination, and residence), individual and household socio-demographic, and trip-related variables. …
Increasing The Durability Of Piezoelectric Impact-Based Micro Wind Generator In Real Application, Hyun Jun Jung, Yooseob Song, Seong Kwang Hong, Chan Ho Yang, Sung Joo Hwang, Tae Hyun Sung
Increasing The Durability Of Piezoelectric Impact-Based Micro Wind Generator In Real Application, Hyun Jun Jung, Yooseob Song, Seong Kwang Hong, Chan Ho Yang, Sung Joo Hwang, Tae Hyun Sung
Civil Engineering Faculty Publications
The purpose of this study is to increase the durability of piezoelectric impact-based micro wind generator (PIMWG) in real application. Using new PIMWG design, numerical simulation, and experimental comparison analysis, we improved the durability of PIMWGs in real application. The experimental results show that the optimized PIMWG generated 2.4 mW (RMS value), and it did not crack within 40 h. In this study, we improved the durability of PIMWGs for real application.
Accuracy Analysis Of Parallel Method Based On Non-Overlapping Domain Decomposition Method, Moonho Tak, Yooseob Song, Hye-Kwan Jeon, Taehyo Park
Accuracy Analysis Of Parallel Method Based On Non-Overlapping Domain Decomposition Method, Moonho Tak, Yooseob Song, Hye-Kwan Jeon, Taehyo Park
Civil Engineering Faculty Publications
In this paper, an accuracy analysis of parallel method based on non-overlapping domain decomposition method is carried out. In this approach, proposed by Tak et al.(2013), the decomposed subdomains do not overlap each other and the connection between adjacent subdomains is determined via simple connective finite element named interfacial element. This approach has two main advantages. The first is that a direct method such as gauss elimination is available even in a singular problem because the singular stiffness matrix from floating domain can be converted to invertible matrix by assembling the interfacial element. The second is that computational time and …
Diffusivity And Sorptivity Of Berea Sandstone Determined Using Neutron Radiography, M. Kang, Chu-Lin Cheng, H. Z. Bilheux, Michael J. Gragg, D. M. Wright, J. M. Lamanna, J. Horita, J. M. Warren
Diffusivity And Sorptivity Of Berea Sandstone Determined Using Neutron Radiography, M. Kang, Chu-Lin Cheng, H. Z. Bilheux, Michael J. Gragg, D. M. Wright, J. M. Lamanna, J. Horita, J. M. Warren
Civil Engineering Faculty Publications
Neutron radiography is increasingly being used to study the dynamics of water movement in variably saturated porous media. It has been applied to visualize water imbibition in both natural and engineered materials, including soil, rock, brick, concrete, and glass. The sorptivity, S, and unsaturated diffusivity, D(θ), are important parameters for describing water movement under partially saturated conditions. Estimates of S and D(θ) have been obtained using a variety of techniques, including neutron imaging. However, we could find no previous reports of such measurements for the Berea sandstone, regardless of the method employed. Berea sandstone is a widespread, …
Forward Prediction Of Height-Averaged Capillary Pressure–Saturation Parameters Using The Bc-Vg Upscaler, Chu-Lin Cheng, Edmund Perfect, R. T. Mills
Forward Prediction Of Height-Averaged Capillary Pressure–Saturation Parameters Using The Bc-Vg Upscaler, Chu-Lin Cheng, Edmund Perfect, R. T. Mills
Civil Engineering Faculty Publications
There is ongoing interest in approaches for upscaling point (e.g., pixel or voxel scale) measurements of soil hydraulic properties to predict column-scale behavior in the laboratory, or even field-scale processes. We have developed the BC-vG Upscaler for estimating the height-averaged capillary pressure–saturation relationship, , for a given porous medium based on equations used in the TrueCell program. Whereas TrueCell inversely estimates point Brooks and Corey (BC) equation parameters from data, the BC-vG Upscaler uses point BC parameters as inputs for the forward prediction of height-averaged van Genuchten (vG) parameters. The BC-vG Upscaler was verified using previously published, independent point and …
Neutron Imaging And Applications: A Reference For The Imaging Community, Edmund Perfect, Chu-Lin Cheng, Peter Lehmann
Neutron Imaging And Applications: A Reference For The Imaging Community, Edmund Perfect, Chu-Lin Cheng, Peter Lehmann
Civil Engineering Faculty Publications
No abstract provided.
Fluvial Geomorphologic And Hydrodynamic Assessment In The Tidal Portion Of The Lower Rio Grande River, Us-Mexico Borderland, Andrew Ernest, B. Bokhim, N. B. Chang, I. J. Huang
Fluvial Geomorphologic And Hydrodynamic Assessment In The Tidal Portion Of The Lower Rio Grande River, Us-Mexico Borderland, Andrew Ernest, B. Bokhim, N. B. Chang, I. J. Huang
Civil Engineering Faculty Publications
With fast population growth and economic development in the US-Mexico Borderland, water diversion and usages has reduced the flow substantially in the Low Rio Grande River (LRGR). Tidal portion of the LRGR has posed an environmental drought issue since 1993 and the channel clogged with the invasion of non-native plants also causes environmental problems. As a result of the intensity of these natural and manmade factors, the Rio Grande stopped flowing to the sea in February 2001. The flows were reduced to a point that they were unable to push out the sand deposited at the mouth. Geomorphologic evolution in …