Search
Now showing items 561-570 of 610
A new insight in determining the percolation threshold of electrical conductivity for extrinsically conducting polymer composites through different sigmoidal models
(
MDPI AG
, 2017 , Article)
The electrical conductivity of extrinsically conducting polymer composite systems passes through a transition state known as percolation threshold. A discussion has been made on how different Sigmoidal models (S-models), ...
Joint replenishment model for multiple products with substitution
(
Elsevier Inc.
, 2016 , Article)
We extend the classical economic order quantity model to address the joint replenishment of multiple products under substitution. The proposed model optimizes ordering quantities for each product under substitution effects ...
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 ...
High temperature thermal stability of innovative nanostructured thin coatings for advanced tooling
(
Trans Tech Publications Ltd
, 2014 , Article)
Tools for machining are made of hard steels and cemented carbide (WC-Co). For specialized applications, such as aluminium machining, diamond or polycrystalline cubic boron nitride are also used. The main problem with steel, ...
An empirical study on lean awareness and potential for lean implementations in Qatar industries
(
Springer-Verlag London Ltd
, 2016 , Article)
In this study, an investigation on the level of recognition of lean concepts, principles, tools, and techniques in different industrial sectors in Qatar was carried out. The general aim of the study was to determine lean ...
Critical success factors for Lean Six Sigma in SMEs (small and medium enterprises)
(
Emerald Group Publishing Ltd.
, 2016 , Article)
Purpose - The purpose of this paper is to identify and list critical success factors (CSFs) of Lean Six Sigma (LSS) framework affecting and influencing quality, operational and financial performance of small and medium ...
Analysis of the effect of global climate change on ground source heat pump systems in different climate categories
(
Elsevier
, 2015 , Article)
Ground source heat pump (GSHP) systems exhibit high thermal performance. Consequently, they are increasingly used to heat and cool buildings. The thermal performance of GSHP systems strongly depends on the operation ground ...
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 ...
Synthesis and characterization of cobalt hydroxide carbonate nanostructures
(
Royal Society of Chemistry
, 2017 , Article)
Battery-type electrodes of three-dimensional (3D) hierarchical cobalt hydroxide carbonate arrays on Ni foam were fabricated using a hydrothermal method for use in supercapacitors. X-ray diffraction analysis, scanning ...
Scalar dissipation rate statistics in turbulent flows using Planar Laser Induced Fluorescence measurements
(
Elsevier
, 2012 , Article)
A shearless mixing layer with isotropic decaying turbulence has been examined with a turbulent axisymmetric opposed-jet flow and a plume in pipe flow. The study has been carried out experimentally with Planar Laser Induced ...