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السجلات المعروضة 141 -- 150 من 489
A theoretical and experimental study of fast lower bounds for the two-dimensional bin packing problem
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EDP Sciences
, 2018 , Article)
We address the two-dimensional bin packing problem with fixed orientation. This problem requires packing a set of small rectangular items into a minimum number of standard two-dimensional bins. It is a notoriously intractable ...
Towards achieving nanofinish on silicon (Si) wafer by ?-wire electro-discharge machining
(
Springer London
, 2018 , Article)
This study investigates the use of nanopowder-mixed dielectric oil and temporary metallic coating on highly doped Si sample to achieve nanometric surface roughness using ?-WEDM operation. To achieve this, two different ...
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), ...
Monitoring multistage processes with autocorrelated observations
(
Taylor and Francis Ltd.
, 2017 , Article)
In multistage manufacturing processes, autocorrelations within stages over time are prevalent and the classical control charts are often ineffective in monitoring such processes. In this paper, we derive a linear state ...
Thermal comfort investigation of an outdoor air-conditioned area in a hot and arid environment
(
Taylor and Francis Inc.
, 2017 , Article)
Thermal comfort in hot and arid outdoor environments is an industrial challenging field. An outdoor air-conditioned area was designed and built to host sport and social events during summers 2014 and 2015 in Qatar. This ...
Synthesis and characterization of magnetic nanostructured lipid carriers (mNLCs) for drug delivery
(
Electrochemical Science Group
, 2018 , Article)
Magnetic nanoparticles (MNPs) are a class of nanoparticles, which can be manipulated using magnetic fields. Currently, MNPs are recognized as one of the most important mode as a drug carrier while they can also be potentially ...
Investigating the effect of utilizing new induction manifold designs on the combustion characteristics and emissions of a direct injection diesel engine
(
American Society of Mechanical Engineers (ASME)
, 2018 , Article)
New induction manifold designs have been developed in this work to enhance the turbulence intensity and improve the mixing quality inside diesel engine cylinders. These new designs employ a spiral-helical shape with three ...
Band Gap Characteristics of Nonrotating Passive Periodic Drill String
(
American Society of Mechanical Engineers (ASME)
, 2018 , Article)
A new class of drill strings is investigated whereby strategically designed and placed periodic inserts are utilized to filter out the vibration transmission along the drill strings. Such mechanical filtering capabilities ...
Investigating Determinants of Student Satisfaction in the First Year of College in a Public University in the State of Qatar
(
Hindawi Limited
, 2018 , Article)
Purpose. A first-year student's life is a web of interrelated academic and social experiences. Most universities have rigorous processes to achieve excellence or reach high-quality standards, with "Student Satisfaction" ...
Hydrogels for Advanced Stem Cell Therapies: A Biomimetic Materials Approach for Enhancing Natural Tissue Function
(
Institute of Electrical and Electronics Engineers
, 2018 , Article)
Stem-cell-based therapy is a promising approach for the treatment of a myriad of diseases and injuries. However, the low rate of cell survival and the uncontrolled differentiation of the injected stem cells currently remain ...