MY – TechConnect Briefs

Energy Efficient Transmission Scheme Alternative to M-PAM for Short Range Data Communication

Elsherif M.A., Malekmohammadi A., The University of Nottingham, MY

Mapping Multiplexing Technique was reported for the ﬁrst time in [(patent No: PI201270063)] as an alternative modulation and multiplexing technique for high-speed optical fiber communication systems. In this letter two, three, and four-channel Mapping Multiplexing [...]

Investigation on Impact of Different Defects based on Different Trap Energy Level in the Framework of Two-Stage NBTI model

Bukhori M.F., Hussin H., Soin N., Universiti Teknologi MARA, MY

Charges in gate dielectric significantly degraded the p-MOSFET device performances particularly due to NBTI phenomenon. The validation of NBTI effects on device and circuit performance require accurate model to ensure reliable prediction during design phase. [...]

Effects of sub-threshold operation on 32 nm technology node PMOSFETs evaluated from the perspective of two-stage NBTI model

Bukhori M.F., Hussin H., Soin N., Universiti Teknologi MARA, MY

We investigate the subthreshold operation effects on NBTI reliability issues in the framework of two-stage NBTI model. This is to include the effect of oxide trap since most previous simulation-based study only focuses on interface [...]

Well trap structures and bulk-nano environment luminescence centers in CaZnGe2O6:Tb3+ long afterglow phosphor

Li Y., Singh S.P., Woo B.K., Multimedia University, MY

A long afterglow phosphor CaZnGe2O6:Tb3+ has been prepared by using organic coated luminescence ZnO nanopowder through a high temperature solid-state reaction route. This new CaZnGe2O6:Tb3+ long afterglow phosphor sample emits the Tb3+ green fluorescence 543 [...]

Effect of Cutting Parameters on The Surface Roughness of MWCNT Reinforced Epoxy Composite Using End-Milling Process

Ansari M.N.M., Harii Krishna Rao G., Universiti Tenaga Nasional, MY

In this paper, the preparation and casting of sample composite, machining parameters and Scanning electron microscopy (SEM) studies on multi-walled carbon nanotubes (MWCNT) reinforced epoxy composites were discussed. Structurally, MWCNTs consist of multiple layers of [...]

Starch/MWCNT/Epoxy Composites for Biodegradable Batteries

Ansari M.N.M., Kong I., Shanks R.A., Universiti Tenaga Nasional, MY

Currently, the vast majority of plastics are made from petroleum-based synthetic polymers that do not degrade in a natural environment and their disposal poses a serious problem. An environmentally-conscious alternative is to design polymer nanocomposites [...]

Poly(Lactic Acid) Hemp Composites Combined with Nano-Silica

Ansari M.N.M., Mustapa I.R., Shanks R.A., Universiti Tenaga Nasional, MY

An important issue for all composites is reduction of creep. The reinforcing fibers dramatically reduce creep, however nano-composites can improve tensile properties and toughness. The aim of this work is to prepare and characterize PLA [...]

Cellulose Fiber and Nano-Fiber Composites based on Castor Oil-Polyurethane Matrix

Ansari M.N.M., Shanks R.A., Universiti Tenaga Nasional, MY

The bimodal combination of cellulose fibre dimensions resulted in complementary properties from the same chemical composition. The nano-cellulose fibers provided thixotropy to the castor oil based reactants. The composites exhibited strength, toughness and a modulus [...]

Tailoring Electron Diffusion in Electrospun Metal Oxide Nanostructures for Dye-Sensitized Solar Cells

Archana P.S., Jose R., Le Viet A., Naveen Kumar. M.M. Yusoff E., Ramakrishna S., Universiti Malaysia Pahang, MY

Polymeric solutions containing precursors of wide bandgap metal oxide semiconductors were electrospun either directly on a transparent conducting glass substrate or on other sample collectors to prepare their films. These films produced randomly oriented continuous [...]

Design Simulations of MEMS Micropump by 3D Fluid-Structure Interaction Analysis

Johari J., Universiti Kebangsaan Malaysia, MY

The major technical impediment in developing new microdevices lies in the lack of understanding physical phenomena and their interactions of thermal, mechanical, electric, magnetic and/or fluidic fields for performing their intended functions. Due to the [...]