-
281
Antibacterial polysulfone membranes: the effect of eugenol and zinc oxide as additives
Published 2016“…Besides that, the inhibition ring of membrane was improved 200% when both zinc oxide and eugenol were added in polysulfone membrane, Based on the findings, we can conclude that membrane with a combination of zinc oxide and eugenol has a huge potential membrane for bacterial removal.…”
Get full text
Article -
282
Linerboard made from Soda-Anthraquinone (Soda-AQ) treated coconut coir fiber and effect of pulp beating
Published 2015“…Based on its burst strength of 4.57 kPa.m2/g and ring crush test of 1.76 Nm2/g, which complies with the minimum requirement of the industry standard, coir fiber can be considered an alternative fiber source for linerboard production.…”
Get full text
Article -
283
Chitosan-zinc oxide composite for active food packaging Applications
Published 2018“…From the tensile test, C-ZnO0.5 and C-ZnO1.0 films were found to be much superior by 1.5 times and 2.5 times respectively compared to bare chitosan film. Larger inhibition ring (by 47%) was exhibited by C-ZnO1.0 as compared to C-ZnO0.5 when tested against S.aureus. …”
Get full text
Article -
284
Aligning internal market orientation (IMO) with market orientation (MO) to impact performance in the banking sector in Ghana
Published 2017“…The pioneering studies of Lings and Greenley on internal market orientation (IMO) in the 2000s and that of Kohli and Jaworski experience enormous investigation empirically. …”
Get full text
Thesis -
285
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 -
286
Investigation and development of a novel metrology standard for the measurement of relative intensity noise and frequency chirp of DFB lasers in optical networks
Published 2007“…This is enforced further by the nonplanar ring oscillator (NPRO) technology providing superior line width stability. …”
Get full text
Thesis -
287
Palm oil and mineral oil based lubricants - their tribological and emission performance
Published 1999“…The test conditions for the actual engine were: constant load, 0.4 kW for wear of the piston ring but various loads for exhaust emissions and constant speed, 2800 rpm. …”
Get full text
Article -
288
Semi fractal three leaf clover-shaped CPW antenna for triple band operation
Published 2014“…The realization of the triband antenna was achieved by using two semi fractal ring patches resembling the shape of a three leaf clover, and by introducing a pair of symmetrical L-shaped slits in its ground plane. …”
Get full text
Article -
289
Synthesis 4-[2-(2-mercapto-4-oxo-4H-quinazolin-3-yl)-ethyl]-benzenesulfonamides with subnanomolar carbonic anhydrase II and XII inhibitory properties
Published 2016“…All substitution patterns present in these compounds (e.g., halogens, methyl and methoxy moieties, in positions 6, 7 and/or 8 of the 2-mercapto-quinazolin-4-one ring) led to highly effective hCA II/XII inhibitors. …”
Get full text
Get full text
Get full text
Article -
290
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 -
291
-
292
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 -
293
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 -
294
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 -
295
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 -
296
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 -
297
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 -
298
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 -
299
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 -
300
Investigation of Q-switched and mode-locked erbium-doped fiber laser using graphene oxide-saturable absorber
Published 2020“…The GO-SA chip is a chip placed as a sandwich between two fiber ferrules and incorporates a ring laser cavity to generate a pulse train. Results indicate that the cavity of passive Q-switching EDFL is capable of providing pulses at 1532nm with a pulse width within a range of 5.32μs to 2.6μs, a repetition rate of 59.5kHz to 71.74kHz, a pulse energy of 364.64nJ to 668.95nJ, and an output power ranging from 0.062mW to 0.136mW, when the configuration is pumped by a 980nm laser diode, the power of which gradually increases from 21.7mW to 47.9mW. …”
Get full text
Get full text
Proceeding Paper