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Now showing items 641-650 of 652
Microton irradiation induced tuning of dielectric properties of nano ZnO-natural rubber disks
(
Springer Verlag
, 2017 , Article)
The effect of electron beam irradiation of dielectric and conductivity properties of nano ZnO-natural rubber (NR) disks was investigated here. It is revealed that electric properties such as AC conductivity, dielectric ...
Sentiment analysis of islamic news data using hyper-concepts
(
American Scientific Publishers
, 2017 , Article)
Sentiment Analysis is the extraction of writers feeling from a written manuscript. It aims at predicting the sentiment of a particular text using automated means. There are two main ways to make predictions: (1) lexicon-based ...
Amna Mahmoud Al-Jaydah, a pioneer in the struggle for female education in Qatar: A biographical research study
(
Routledge
, 2017 , Article)
Much of the historical data, often narratives, on 19th and early 20th century women teachers in the West highlights the ways in which these women educators were influenced by religious institutions and/or the cultural, ...
A Minorization-Maximization Algorithm for Maximizing the Secrecy Rate of the MIMOME Wiretap Channel
(
Institute of Electrical and Electronics Engineers Inc.
, 2017 , Article)
We consider physical layer security in a multi-input multi-output multi-eavesdropper wiretap channel and present an exact solution to the problem of secrecy rate maximization. A system model with multiple multi-antenna ...
Fuzzy Structural Equation Model to Assess Construction Site Safety Performance
(
American Society of Civil Engineers (ASCE)
, 2017 , Article)
The main goal of this study is to examine the relationships between determinants of safety performance of construction sites. To achieve this goal, 168 observable variables and 16 latent dimensions that affect safety ...
Differences in the neovascular potential of thymus versus subcutaneous adipose-derived stem cells from patients with myocardial ischemia.
(
Wiley
, 2017 , Article)
Adipose tissue-derived multipotent mesenchymal cells (ASCs) participate in the formation of blood vessels under hypoxic conditions. It is probable that the susceptibility of ASCs to the influence of age and aging-associated ...
Derivative-driven window-based regression method for gas turbine performance prognostics
(
Elsevier Ltd
, 2017 , Article)
The domination of gas turbines in the energy arena is facing many challenges from environmental regulations and the plethora of renewable energy sources. The gas turbine has to operate under demand-driven modes and its ...
Mixed EWMA-CUSUM and mixed CUSUM-EWMA modified control charts for monitoring first order autoregressive processes
(
Taylor and Francis Ltd.
, 2017 , Article)
In practice most processes are known to produce autocorrelated observations. Autocorrelation degrades the performance of control charts by producing frequent false alarms when the process is stable or makes the charts ...
Application of value stream mapping (VSM) for lean and cycle time reduction in complex production environments: a case study
(
Taylor and Francis Ltd.
, 2017 , Article)
The application of VSM is a proven approach for lean-based improvements. Typically, this becomes challenging, when applied for complex production environments. The purpose of this research is to demonstrate, how with some ...
Effectiveness of a pharmacist-delivered smoking cessation program in the State of Qatar: a randomized controlled trial
(
BioMed Central
, 2017 , Article)
Background: Cigarette smoking is one of the major preventable causes of death and diseases in Qatar. The study objective was to test the effect of a structured smoking cessation program delivered by trained pharmacists on ...