College of Engineering: Recent submissions
Now showing items 4021-4040 of 8762
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Spider silk fibers: Synthesis, characterization, and related biomedical applications
( Elsevier , 2019 , Book chapter)Compared to silkworm silks, spider silks (SS) are considered stronger, most elastic, and tougher biomaterials. Web-weaving spiders use impressive silks where the proteins in the silks can be described as virtually nondiverged. ... -
In situ electron microscopy of Braille microsystems: Photoactuation of ethylene vinyl acetate/carbon nanotube composites
( Institute of Physics Publishing , 2015 , Article)The development of new types of tactile displays based on the actuation of composite materials can aid the visually impaired. Micro/nano systems based on ethylene vinyl acetate (EVA) polymeric matrices enriched with ... -
Nanomechanical properties of plasma treated polylactic acid
( Maney Publishing , 2015 , Article)In this work, a radio frequency discharged plasma generated in air atmosphere by pressure has been used to modify polylactic acid (PLA) surface. The results were evaluated through nanoindentation testing. Contact angle ... -
Ti3C2Tx mxene-based light-responsive hydrogel composite for bendable bilayer photoactuator
( MDPI AG , 2020 , Article)Soft actuators based on hydrogel materials, which can convert light energy directly into mechanical energy, are of the utmost importance, especially with enhancements in device development. However, the hunt for specific ... -
The stabilizing effect of expanded graphite on the artificial aging of shape stabilized phase change materials
( Elsevier Ltd , 2015 , Article)Artificial aging of Shape Stabilized Phase Change Materials (SSPCM) based on linear low density polyethylene (LLDPE) and paraffin wax (W) modified with various amounts of expanded graphite (EG) was investigated and reported ... -
Smart non-woven fiber mats with light-induced sensing capability
( MDPI AG , 2020 , Article)This article is focused on the facile procedure for 2D graphene oxide (GO) fabrication, utilizing reversible de-activation polymerization approach and therefore enhanced compatibility with surrounding polymer matrix. Such ... -
Time-Frequency Signal Analysis and Processing: A Comprehensive Reference
( Elsevier Inc. , 2015 , Book)Time-Frequency Signal Analysis and Processing (TFSAP) is a collection of theory, techniques and algorithms used for the analysis and processing of non-stationary signals, as found in a wide range of applications including ... -
Multicomponent noisy signal adaptive instantaneous frequency estimation using components time support information
( Institution of Engineering and Technology , 2014 , Article)This study proposes an adaptive method for components instantaneous frequency (IF) estimation of noisy non-stationary multicomponent signals, combined with the components time-support estimation method based on the shorttime ... -
Time-frequency features for pattern recognition using high-resolution TFDs: A tutorial review
( Elsevier Inc. , 2015 , Article)This paper presents a tutorial review of recent advances in the field of time-frequency (t, f) signal processing with focus on exploiting (t, f) image feature information using pattern recognition techniques for detection ... -
High-resolution time-frequency distributions for fall detection
( SPIE , 2015 , Conference)In this paper, we examine the role of high-resolution time-frequency distributions (TFDs) of radar micro-Doppler signatures for fall detection. The work supports the recent and rising interest in using emerging radar ... -
Principles of time-frequency feature extraction for change detection in non-stationary signals: Applications to newborn EEG abnormality detection
( Elsevier Ltd , 2015 , Article)This paper considers the general problem of detecting change in non-stationary signals using features observed in the time-frequency (t,f) domain, obtained using a class of quadratic time-frequency distributions (QTFDs). ... -
Non-invasivemonitoring of fetal movements using time-frequency features of accelerometry
( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference)This paper presents a time-frequency approach for fetal movement monitoring which is based on the instantaneous amplitude (IA) and instantaneous frequency (IF) of signals collected using 3axial accelerometers placed over ... -
Human gait recognition with cane assistive device using quadratic time-frequency distributions
( Institution of Engineering and Technology , 2015 , Article)In this study, the authors consider the problem of human gait recognition in the presence of a walking cane using radars. Quadratic time-frequency distributions are used to provide the local signal behaviour over frequency ... -
Micro-Doppler characteristics of elderly gait patterns with walking AIDS
( SPIE , 2015 , Conference)In this paper, we analyze the micro-Doppler signatures of elderly gait patterns in the presence of walking AIDS using radars. The signatures are based on real data experiments conducted in a laboratory environment using ... -
Getting started with a practical and efficient time-frequency toolbox tfsap-7.0
( Elsevier Inc. , 2015 , Book chapter)[No abstract available] -
Self-standing elastomeric composites based on lithium ferrites and their dielectric behavior
( American Institute of Physics Inc. , 2014 , Article)Lithium ferrite (LiFe5O8) is an attractive material for technological applications due to its physical properties, which are significantly dependent on the preparation method and raw materials. In this work, LiFe5O8 ... -
Effect of expanded graphite on the phase change materials of high density polyethylene/wax blends
( Elsevier , 2015 , Article)Phase change materials fabricated from high density polyethylene (HDPE) blended with 40 or 50 wt% commercial wax (melting point of 43.08�C) and up to 15 wt% expanded graphite (EG) were studied. Techniques including scanning ... -
Unconventional experimental technologies used for phase change materials (PCM) characterization: Part 2 - Morphological and structural characterization, physico-chemical stability and mechanical properties
( Elsevier Ltd , 2015 , Article)Due to the high interest of appropriate characterization of PCM and hybrid PCM composites, different research centres and universities are using several material characterization techniques not commonly used with PCM, to ... -
Electrical properties of lithium ferrite nanoparticles dispersed in a styrene-isoprene-styrene copolymer matrix
( Springer Netherlands , 2015 , Book chapter)The main goal of this work was the preparation and study of a composite material by dispersing lithium ferrite particles in a polymeric matrix. The matrix selected was styrene-b-isoprene-b-styrene (SIS) copolymer. Lithium ... -
Mechanical and Electrical Properties of Styrene-Isoprene-Styrene Copolymer Doped with Expanded Graphite Nanoplatelets
( Hindawi Publishing Corporation , 2015 , Article)The molecular dynamics of a triblock copolymer and of expanded graphite nanoplatelets were investigated. Composites were prepared using the solution technique. The effects of filler addition and of filler-matrix interactions ...