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Now showing items 141-150 of 162
Uncovering responses of zooplankton community to CO2 acidification in Qatar cstal waters
(
Hamad bin Khalifa University Press (HBKU Press)
, 2016 , Conference Paper)
The combustion of fossil fuels is pushing atmospheric concentrations of carbon dioxide (CO2) to unprecedented levels. This rapid increase in atmospheric CO2 is causing global changes, with noticeable increases in temperature, ...
Effects of Combined Calcium Hypochlorite and Chlorine Dioxide on Drinking Water Quality in Qatar and Disinfection by Products Formation
(
Hamad bin Khalifa University Press (HBKU Press)
, 2016 , Conference Paper)
Chlorite, chlorate, bromate and trihalomethane's (THMs) are included in WHO guidelines for drinking water quality. This study examined dosing different chlorine concentrations as calcium hypochlorite (Ca(ClO)2) to water ...
Allelopathic effects of the invasive Prosopis juliflora (sw.) Dc. On seed germination of selected Qatari native plant species
(
Hamad bin Khalifa University Press (HBKU Press)
, 2016 , Conference Paper)
P. juliflora is highly recognized for its invasive character and its detrimental effects on different plant species due to the presence of allelochemicals across the world. The purpose of this study is to assess the ...
Global change: The Arabian Gulf ecosystem- An introduction
(
Hamad bin Khalifa University Press (HBKU Press)
, 2015 , Conference Paper)
The Arabian Gulf is a main source of wealth and food for the people of the Gulf countries. For hundreds of years, the Gulf used to be the main source for some of the finest pearls in the world. It harbors highly diverse ...
An LP model for optimizing a supply chain management system for steel company
(
Newswood Limited
, 2014 , Conference Paper)
In this research, we have developed a linear programming formulation to describe Qatar steel manufacturing supply chain from suppliers to consumers. The purpose of the model is to provide answers regarding the optimal ...
A framework for optimizing the supply chain performance of a steel producer
(2013 , Conference Paper)
Supply Chain Management (SCM) is focused on developing, optimizing, and operating efficient supply chains. Efficient supply chains are characterized by cost effective decisions, lean flow and structure, high degree of ...
Melt Processing and Properties of Polyamide 6/Graphene Nanoplatelet Composites
(
ICCCM
, 2015 , Conference Paper)
In this paper, the processing and characterization of Polyamide 6 (PA6) / graphite nanoplatelets
(GNPs) composites is reported. PA6/GNPs composites were prepared by melt-mixing using an
industrial, co-rotating, intermeshing, ...
Bayesian network and response surface methodology for prediction and improvement of bacterial metabolite production
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
The optimization of antifungal activity production by Bacillus amyloliquefaciens was carried out using Response Surface Methodology (RSM) in two steps. The first step involved the screening of cultural parameters affecting ...
Telecommunication-wavelength lasing in er-doped gan multiple quantum wells at room temperature
(
OSA - The Optical Society
, 2018 , Conference Paper)
We report the realization of room-temperature, stimulated-emission in Er-doped-GaN multiple-quantum-wells at the 1.5-µm. Structures were grown by MOCVD and lasing was confirmed by threshold-behaviors of emission-intensity ...
Optimal Production Planning Strategy for Deteriorating Items in Terms of Emission Tax, Pollution, and R&D Investment
(
Springer Science and Business Media B.V.
, 2018 , Conference Paper)
Firms are faced with the question of what policies to implement to ensure efficient abatement behavior? In this paper, we aim to determine the optimal production rate and the optimal investment rate in pollution abatement ...