-
161
A multi-beam circularly polarised Fabry-Perot resonator antenna array using SIW for X-Band applications
Published 2025“…This paper presents a novel multi-layer beamforming antenna array based on Fabry-Perot resonator that is excited by a high performance compact 4 × 4 Butler matrix using substrate integrated waveguide SIW) technology for X-band application. The adapted ring patch antenna is fed through the aperture on a rectangular SIW cavity and forms the radiating element in the antenna array. …”
Get full text
Article -
162
-
163
In search of a new class of stable nitroxide: synthesis and reactivity of a peri-substituted N,N-bissulfonylhydroxylamine
Published 2011“…In an approach to stabilising a bissulfonylnitroxide radical, the cyclic, peri-substituted N,N-bissulfonylhydroxylamine, 2-hydroxynaphtho[1,8-de][1,3,2]dithiazine 1,1,3,3-tetraoxide (1), has been prepared by formal nitrogen insertion into the sulfur–sulfur bond of a sulfinylsulfone, naphtho[1,8-cd][1,2]dithiole 1,1,2-trioxide. The heterocyclic ring of 1 is shown to adopt a sofa conformation by X-ray crystallography, with a pseudo-axial hydroxyl group. …”
Get full text
Article -
164
Wideband printed monopole antenna for application in wireless communication systems
Published 2018“…The impedance bandwidth of the antenna is enhanced with the inclusion of meander-line slots in the patch and four double split-ring resonators on the underside of the radiating patches. …”
Get full text
Article -
165
Interaction suppression technique for high-density antenna arrays for mm-wave 5G MIMO systems
Published 2021“…High isolation between adjacent radiation elements was achieved by embedding a crisscrossed decoupling structure comprising slotted microstrip-lines and locating in the ground-plane under each slot a dielectric ring. The proposed periodic array behaves as artificial magnetic conductor (AMC) surfaces as incident waves in the substrate are fully reflected with a near zero degrees reflection phase. …”
Get full text
Conference or Workshop Item -
166
High-gain end-fire bow-tie antenna using artificial dielectric layers
Published 2015“…By loading the antenna with a 2 × 5 array of enhanced end-coupled split-ring (EECSR) unit-cells results in significant enhancement in the antenna gain performance. …”
Get full text
Article -
167
Super-wideband antenna with multiple notched-band functionality through L-X bands
Published 2022“…The proposed antenna comprises a standard circular patch which is loaded with various slot artifacts that include multiple split-ring resonators (SRR), a rotated Gamma-shaped slot, and embedded in the feedline is a rotated S-shaped slot. …”
Get full text
Conference or Workshop Item -
168
Nanoparticle-coated Vivaldi antenna array for gain enhancement
Published 2023“…This is achieved by loading the antenna with Complementary Split Ring Resonators (CSRR) and periodic array of open loop meander-line unit cells. …”
Get full text
Get full text
Article -
169
Influence of thickness on tunability performance of plasma sputtered indium tin oxide as Q-switcher
Published 2023“…Employing the tunable bandpass filter in the laser ring cavity gives the wide-tuning of the wavelength range of 19.69 nm, 31.86 nm, and 36.59 nm for the thickness of 17.80 nm, 30.70 nm, and 38.90 nm, respectively. …”
Get full text
Article -
170
Study on Acoustic Emission Characteristics and Damage Evolution Law of Shale under Uniaxial Compression
Published 2024“…Considering the initial damage to the rock, the damage factor D initially decreases and then increases with increasing cumulative ring-down counts rather than exhibiting a monotonic increase. …”
Get full text
Article -
171
Optimisation of insulator design for improved electric field performance
Published 2015“…The techniques employed are as follow: i) different configuration of metal end fittings design, ii) improve of insulator weather shed shape and iii) installation of corona ring at appropriate location. From the observation, all the techniques proposed have significant effect on electric field distributions. …”
Get full text
Get full text
Get full text
Thesis -
172
Hardware implementation for cardiac electrical excitation and conduction using an FPGA
Published 2017“…In this research, one dimensional (1D) ring-shaped cable model with 80 compartments of the cell model designed using MATLAB Simulink blocks is able to be converted into synthesizable VHSIC (Very High Speed Integrated Circuit) of Hardware Description Language (VHDL) code by using an FPGA-based rapid-prototyping approach of MATLAB HDL Coder in order to simulate an action potential signal and its conduction through a hardware-implemented Field Programmable Gate Array (FPGA). …”
Get full text
Get full text
Thesis -
173
-
174
Synthesis and structural analysis of [alpha]-aminophosphonic acids and their phosphonate ester derivatives
Published 1996“…The effects of the aromatic ring currents exerted by the extended aromatic substituents were investigated. …”
Get full text
Thesis -
175
Influence of thickness on tunability performance of plasma sputtered indium tin oxide as Q-switcher
Published 2023“…Employing the tunable bandpass filter in the laser ring cavity gives the wide-tuning of the wavelength range of 19.69 nm, 31.86 nm, and 36.59 nm for the thickness of 17.80 nm, 30.70 nm, and 38.90 nm, respectively. …”
Get full text
Article -
176
Investigation of green foamed concrete incorporating palm oil fuel ash and eggshell ash as partial cement replacement
Published 2018“…The effect of partial replacement on the workability was determined by J-ring test, mechanical properties such as, compressive and tensile strengths as well as modulus of elasticity and thermal performance of GFC was determined by thermal conductivity and surface temperature. …”
Get full text
Get full text
Get full text
Thesis -
177
-
178
-
179
Developing a framework of non-fatal occupational injury surveillance for risk control in palm oil mills
Published 2018“…Analysis of logistic regression indicated that working in shift, not wearing protective gloves, health problems such as shortness of breath and ringing in ears, and excessive noise level (≥ 85 dB[A]) were the risk factors of NFOI in palm oil mills among OP workers. …”
Get full text
Get full text
Get full text
Thesis -
180