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On diversity performance of two-element coupling element based antenna structure for mobile terminal
(Institute of Electrical and Electronics Engineers (IEEE), 2010-04-12)
In wireless communication systems, multipath interference has a significant impact on system design and performance. Fast fading is caused by the coherent summation of one or more echoes from many reflection points reaching ...
Multi-antenna mobile terminal diversity performance in proximity to human hands under different propagation environment conditions
(The Institution of Engineering and Technology, 2011-10-27)
The effective diversity gain (EDG) of a four-element planar inverted-F antenna array, which operates at 3500MHz in the proximity to one hand in data-mode grip and two hands in browsing-mode grip, is predicted using a ...
State-of-the-art developments of acoustic energy transfer
(Hindawi Limited, 2016)
Acoustic energy transfer (AET) technology has drawn significant industrial attention recently. This paper presents the reviews of
the existing AETs sequentially, preferably, from the early stage. From the review, it is ...
High gain and high directive of antenna arrays utilizing dielectric layer on Bismuth Titanate ceramics
(Hindawi Limited, 2012)
A high gain and high directive microstrip patch array antenna formed from dielectric layer stacked on bismuth titanate (BiT)
ceramics have been investigated, fabricated, and measured. The antennas are designed and constructed ...
Morphology and properties of geopolymer coatings on glass fibre-reinforced epoxy (GRE) pipe
(EDP Sciences, 2016)
Geopolymer coatings were coated on glass fibre-reinforced epoxy (GRE) pipe by using kaolin, white clay and silica sand as source materials and sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) as alkaline solution. The ...
A novel study on using Vietnam rice hush ash and cullet as environmental materials
(EDP Sciences, 2017)
This work introduces novel method to prepare ecomaterials wollastonite (CaSiO₃) using the hydrothermal treatment technique of Rice hush ash (RHA), glass cullet and CaO at 180° C for 24 hour so as the Ca/Si molar ration of ...
From nanostructure to nano biosensor: Institute of Nano Electronic Engineering (INEE), UniMAP experience
(Universitas Negeri Semarang, 2011-11)
Nanostructure is defined as something that has a physical dimension smaller than 100 nanometers, ranging from clusters and/or to dimensional layers of atoms. There are three most important nanostructures that are extensively ...
Optimization of NaOH Molarity, LUSI Mud/Alkaline Activator, and Na2SiO3/NaOH Ratio to Produce Lightweight Aggregate-Based Geopolymer
(MDPI AG, 2015-05-21)
This paper presents the mechanical function and characterization of an artificial lightweight geopolymer aggregate (ALGA) using LUSI (Sidoarjo mud) and alkaline activator as source materials. LUSI stands for LU-Lumpur and ...
Intermetallic compound formation on solder alloy/cu-substrate interface using lead-free sn-0.7cu/recycled-aluminum composite solder
(Scientific.Net, 2012-12)
Feasibility of using recycled-Aluminum (re-Al) as reinforcement particulates in Sn-0.7Cu is assessed by powder technology method, whereby re-Al particulates are produced from discarded aluminum beverage cans. This paper ...
Effect of pyrolysis temperature on the synthesis of carbon fiber from natural organic waste
(Trans Tech Publications, 2014)
Carbon fibers are produced from natural sources of water hyacinth plants that have been dried, ground and sieved to three different particle sizes of 600 μm, 300 μm and less than 300 μm. Through the analysis of data obtained ...