Browse Items (25 total)
- Collection: Vol. 21, No. 6 2023
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TELKOMNIKA Telecommunication Computing Electronics and Control
Patch antenna design based on 1D-EBG structures for high gain applications
In this paper the band gap of one-dimensional electromagnetic band gap (1D-EBG) structures will be determined analytically using the dispersion
diagram method. Next, we propose a 1D-EBG antenna design to improve the directivity at 3.5 GHz for WiMax…
diagram method. Next, we propose a 1D-EBG antenna design to improve the directivity at 3.5 GHz for WiMax…
TELKOMNIKA Telecommunication Computing Electronics and Control
Evolutionary programming approach for securing medical images using genetic algorithm and standard deviation
The integrity and security of medical data have become a big challenge for healthcare services applications. Images of hidden text represent
steganography forms in which the image is exploited as an object to cover
information and data. So, the…
steganography forms in which the image is exploited as an object to cover
information and data. So, the…
TELKOMNIKA Telecommunication Computing Electronics and Control
ALZO: an outdoor Alzheimer's patient tracking system using internet of things
Alzheimer's patients have an abnormal brain that affects some functionalities such as memory and motoric function. Some patients experience disorientation, such as losing their way back home, and impaired lower body motoric function, leading to…
TELKOMNIKA Telecommunication Computing Electronics and Control
Optimization of heterogeneous VRP model by considering recharging station using mixed integer programming
Transportation activities require substantial costs: drivers, fuel, vehicle maintenance, vehicle and equipment procurement capital, and administrative activities. In the vehicle routing problem (VRP), all vehicles have the same load capacity. But in…
TELKOMNIKA Telecommunication Computing Electronics and Control
Sliding mode control of a PMSM railway traction drive fed by multi-level inverter
This work offers the sliding mode control (SMC) based control scheme for a railway traction transmission system fed by a five-level T-type inverter. This nonlinear control approach is created for the speed and torque loop control of the permanent…