Browse Items (68 total)
- Collection: Vol. 18, No. 4 2020
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TELKOMNIKA Telecommunication, Computing, Electronics and Control
Simulation and optimization of a tuneable rectangular microstrip patch antenna based on hybrid metal-graphene and FSS superstrate for fifth-generation applications
In this paper, a tuneable rectangular microstrip patch antenna (MPA) is
simulated and optimized to operate in four frequency bands of the next
generation of wireless communication systems. The proposed design
incorporates a copper radiating patch…
simulated and optimized to operate in four frequency bands of the next
generation of wireless communication systems. The proposed design
incorporates a copper radiating patch…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Vulnerabilities detection using attack recognition technique in multi-factor authentication
Authentication is one of the essentials components of information security. It has become one of the most basic security requirements for network communication. Today, there is a necessity for a strong level of authentication to guarantee a…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
A compact multi-band notched characteristics UWB microstrip patch antenna with a single sheet of graphene
A rectangular tuneable ultra-wideband (UWB) microstrip patch (MP) antenna based on a single sheet of graphene (SSG) is designed in this study. The antenna band can be tuned by applying a DC voltage bias perpendicular to the SSG at various values via…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Handwriting identification using deep convolutional neural network method
Handwriting is a unique thing that produced differently for each person.
Handwriting has a characteristic that remain the same with single writer,
so a handwriting can be used as a variable in biometric systems. Each person have a different form of…
Handwriting has a characteristic that remain the same with single writer,
so a handwriting can be used as a variable in biometric systems. Each person have a different form of…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
A progressive domain expansion method for solving optimal control problem
Electricity generation at the hydropower stations in Nigeria has been below the expected value. While the hydro stations have a capacity to generate up to 2,380 MW, the daily average energy generated in 2017 was estimated at around 846 MW. A factor…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
A principal component analysis-based feature dimensionality reduction scheme for content-based image retrieval system
In content-based image retrieval (CBIR) system, one approach of image
representation is to employ combination of low-level visual features cascaded together into a flat vector. While this presents more descriptive information, it however poses…
representation is to employ combination of low-level visual features cascaded together into a flat vector. While this presents more descriptive information, it however poses…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Influence of SME characteristics on the implementation of ERP
The ERP market has recently experienced a significant evolution in recent years, both in large companies and in small and medium-sized enterprises (SMEs). Compared to large companies, SMEs are distinguished by specific characteristics that can…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Internet-offline solution: detail description and benchmarking
In this paper, for the first time, the detail of the internet-offline solution
for rural/village schools is described, and its benchmarking is reported.
For providing offline knowledge access, four (4) different systems have
examined. An…
for rural/village schools is described, and its benchmarking is reported.
For providing offline knowledge access, four (4) different systems have
examined. An…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
GWO-based estimation of input-output parameters of thermal power plants
The fuel cost curve of thermal generators was very important in the calculation of economic dispatch and optimal power flow. Temperature and aging could make changes to fuel cost curve so curve estimation need to be done periodically. The accuracy of…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
SVC device optimal location for voltage stability enhancement based on a combined particle swarm optimization-continuation power flow technique
The increased power system loading combined with the worldwide power industry deregulation requires more reliable and efficient control of the power flow and network stability. Flexible AC transmission systems (FACTS) devices give new opportunities…