Search
Now showing items 1041-1050 of 1247
Correlating the microstructure to mechanical properties and wear behavior of an accumulative back extruded Al-Mg2Si in-situ composite
(
Elsevier
, 2017 , Article)
The present work was conducted to study the effects of microstructural evolutions on the mechanical and wear behavior of an accumulative back extruded aluminum-based in-situ composite. The mechanical fragmentation and ...
Experimental study on using PCMs of different melting temperatures in one cooling vest to reduce its weight and improve comfort
(
Elsevier Ltd
, 2017 , Article)
This study aims at evaluating experimentally phase change material (PCM) cooling vest performance when incorporating two types of PCM with different melting temperatures with varied PCM placement on the lower, upper, front ...
Lifted polynomial size formulations for the homogeneous and heterogeneous vehicle routing problems
(
Elsevier B.V.
, 2017 , Article)
We propose compact formulations for the symmetric and asymmetric capacitated vehicle routing problems. These formulations are obtained by lifting, using the Reformulation-Linearization Technique, a novel polynomial size ...
Corruption and Economic Development: New Evidence from the Middle Eastern and North African Countries
(
Elsevier B.V.
, 2017 , Article)
This paper analyses the role of economic development in curbing corruption by focusing on political and economic freedoms for a sample of Middle Eastern and North African (MENA) countries over the period 1984-2013. In ...
Dynamic risk spillovers between gold, oil prices and conventional, sustainability and Islamic equity aggregates and sectors with portfolio implications
(
Elsevier B.V.
, 2017 , Article)
This paper investigates the time-varying equicorrelations and risk spillovers between crude oil, gold and the Dow Jones conventional, sustainability and Islamic stock index aggregates and 10 associated disaggregated Islamic ...
An efficient inverse short-time Fourier transform algorithm for improved signal reconstruction by time-frequency synthesis: Optimality and computational issues
(
Elsevier Inc.
, 2017 , Article)
This paper presents an improved signal reconstruction method based on a new inverse short-time Fourier transform (ISTFT) estimator. The main challenge addressed in this study is to design a more computationally efficient ...
A robust high-resolution time-frequency representation based on the local optimization of the short-time fractional Fourier transform
(
Elsevier Inc.
, 2017 , Article)
The Locally Optimized Spectrogram (LOS) defines a novel method for obtaining a high-resolution time-frequency (t,f) representation based on the short-time fractional Fourier transform (STFrFT). The key novelty of the LOS ...
Diversification potential of Asian frontier, BRIC emerging and major developed stock markets: A wavelet-based value at risk approach
(
Elsevier B.V.
, 2017 , Article)
This study examines the portfolio risk and the co-movements between each of the BRIC emerging and South Asian frontier stock markets and each of the major developed stock markets (U.S., UK and Japan), using the wavelet ...
Currency risk and microcredit interest rates
(
Elsevier B.V.
, 2017 , Article)
Foreign currency debt provides additional access to capital and offers funds in favorable and flexible terms to microfinance institutions (MFIs). Yet, we find that the use of foreign currency debt, on average, leads to ...
Surrogate data test for nonlinearity of EEG signals: A newborn EEG burst suppression case study
(
Elsevier Inc.
, 2017 , Article)
This paper applies the surrogate data method to investigate the presence of nonlinearity in neonatal electroencephalogram (EEG) burst suppression (B/S) patterns in order to rationalize the use of nonlinear methods for ...