بحث بسيط
السجلات المعروضة 71 -- 80 من 374
Methylmercury bioaccumulation among different food chain levels in the EEZ of Qatar (Arabian Gulf)
(
Elsevier
, 2020 , Article)
Methylmercury (MeHg) concentrations in three different species from different trophic levels with different amounts of Hg exposures were determined for the first time in the EEZ of Qatar. Sampling was conducted during ...
Production and investigation of flexible nanofibers of sPEEK/PVP loaded with RuO2 nanoparticles
(
Elsevier
, 2021 , Article)
Electrospinning technique was employed to fabricate composite nanofibers/nanoparticles of sulfonated polyether ether ketone, polyvinylpyrrolidone, and ruthenium oxide (sPEEK/PVP/RuO2). The samples were synthesized with ...
Bargaining Power: A Framework for Understanding Varieties of Migration Experience
(
SAGE Publications Ltd
, 2021 , Article)
This article introduces the concept of bargaining power as a framework for understanding varieties of migration experience and behavior. We argue that migration and settlement experiences vary according to a migrant's ...
Evacuation under flooded conditions: Experimental investigation of the influence of water depth on walking behaviors
(
Elsevier
, 2021 , Article)
Flooding can be considered as the most frequent type of natural disaster, and it is an unavoidable phenomenon in many parts of the world. Ensuring the safety of people during such natural disasters is extremely important. ...
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 ...
Experimental analysis and modeling of the methane degradation in a three stage biofilter using composted sawdust as packing media
(
J. Environ. Manage.
, 2021 , Article)
Methane gas is a very effective greenhouse gas and the second-largest contributor to global warming. Biofiltration is an effective technology that uses microorganisms to degrade the pollutant by oxidizing it. In this work, ...
Fertility Transitions in Qatar: The Dynamics between Women's Socioeconomic Status and Fertility
(
Radiance Research Academy
, 2021 , Article)
Introduction: Qatar society has undergone major socio-economic transformations that have eventually promoted female access to education and career opportunities, which has, in turn, impacted fertility preferences. Objective: ...
Feasibility of recycling waste carbon black in cement mortar production: Environmental life cycle assessment and performance evaluation
(
Elsevier
, 2021 , Article)
The feasibility of recycling waste carbon black (WCB) that comes as a byproduct from aluminum industry in cementitious composites production is examined in this research. Experimental work combined with environmental life ...
Design and thermo-economic evaluation of an integrated concentrated solar power – Desalination tri-generation system
(
Elsevier Ltd
, 2021 , Article)
In this work, a concentrated solar power (CSP) tri-generation system that is capable of the simultaneous production of steam, power and freshwater is introduced. The abundantly available direct normal irradiance can ...
Microstructure and mechanical behavior of cementitious composites with multi-scale additives
(
Techno Press
, 2021 , Article)
This paper studies the effect of using multi-scale reinforcement additives on mechanical strengths, damage performance, microstructure, and water absorption of cementitious composites. Small dosages of carbon nanotubes ...