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Now showing items 41-50 of 191
An assessment tool to evaluate complete streets in developing countries: The case of Qatar
(
Inderscience Enterprises Ltd.
, 2018 , Article)
Complete streets refer to a simple and effective transportation policy to improve traffic safety and comfort for all users within urban areas. Car dependency is a major concern in developing countries. Endorsing complete ...
Advancements in concrete mix designs: High-performance and ultrahigh-performance concretes from 1970 to 2016
(
American Society of Civil Engineers (ASCE)
, 2018 , Article)
This paper reviews the methods adopted to produce high-performance concrete (HPC) and ultrahigh-performance concrete (UHPC). The chronological development of these concretes in terms of their constituents, mixture proportions, ...
Effectiveness of Consistency Measures in Crash Prediction Models for Two-Lane Highways in Palestine
(
Springer Verlag
, 2018 , Article)
Crash prediction models (CPMs) are important tools to predict the safety performance of highways based on their operational and geometric characteristics. Most of these models use geometric design characteristics to predict ...
Outdoor continuous cultivation of self-settling marine cyanobacterium chroococcidiopsis sp.
(
Mary Ann Liebert Inc.
, 2018 , Article)
Spontaneous settling of certain aggregating microalgae or cyanobacteria could potentially alleviate the energy requirement in biomass harvesting. A locally isolated floc-forming marine cyanobacteria, Chroococcidiopsis sp., ...
The effect of electro spinning parameters on polystyrene nano fiber morphology: Oil-water separation
(
Desalination Publications
, 2018 , Article)
This manuscript reports optimized conditions necessary to prepare electro-spun nano fibers and microfibers using two different forms of polystyrene (PS) in dimethylformamide (DMF). We conducted a systematic and methodical ...
Competitive interference during the biodegradation of cresols
(
Center for Environmental and Energy Research and Studies
, 2018 , Article)
Phenol and its methylated derivatives, cresol isomers, are hazardous pollutants that are commonly present in various industrial effluents and known to have detrimental effect on aquatic life as well as human health, due ...
Modeling sediment transport in Qatar: Application for coastal development planning.
(
Wiley
, 2018 , Article)
Hydrodynamics and sediment transport are key physical processes contributing to habitat structure within the marine environment. Coastal development that results in the alteration of these processes (e.g., changing water ...
Effect of cell-phone radiofrequency on angiogenesis and cell invasion in human head and neck cancer cells.
(
Wiley
, 2018 , Article)
Today, the cell phone is the most widespread technology globally. However, the outcome of cell-phone radiofrequency on head and neck cancer progression has not yet been explored. The chorioallantoic membrane (CAM) and human ...
PVA/chitosan/silver nanoparticles electrospun nanocomposites: Molecular relaxations investigated by modern broadband dielectric spectroscopy
(
MDPI AG
, 2018 , Article)
In this study, we used broadband dielectric spectroscopy to analyze polymer nanofibers of poly(vinyl alcohol)/chitosan/silver nanoparticles. We also studied the effect of incorporating silver nanoparticles in the polymeric ...
Evaluation of Antimicrobial Action of Chitosan and Acetic Acid on Broiler Cecal Bacterial Profiles in Anaerobic Cultures InoculatedWith Salmonella Typhimurium
(
Oxford University Press
, 2018 , Article)
Chitosan is known to have antimicrobial properties against a range of microbes. In this
study, three different molecular weight (MW) chitosan preparations were used: low (LMW),
medium (MMW), and coarse (CMW), in acetic ...