Browse Items (67 total)
- Collection: Vol. 18, No. 6 2020
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TELKOMNIKA Telecommunication, Computing, Electronics and Control
Experimental results of vector control for an asynchronous machine
The aim of this article is contribute to the advanced vector control strategy of asynchronous machines. Analyzes of experimental of indirect field-oriented control are presented. In this context, we propose vector control algorithms to provide…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Adopted topic modeling for business process and software component conformity checking
Business processes and software components, especially class diagrams, have a firm connection. Considering software components support the business process in providing an excellent product and service. Besides, business process changes affect on…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Integrated arrangement of advanced power electronics through hybrid smart grid system
As an enabler component for renewable energy integration, power electronics (PE) technology in smart grid system is one of the most important issues of development the electrification, decentralization and information-technology/operation-technology…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Cost implications analysis of grid supplied electricity and solar source of electricity in Nigeria
Energy is a key component in the overall growth of every nation. Insufficient energy delivery hinders political growth, restricts social growth, limits economic growth, and negatively affects the standard of living of citizens, both in urban and…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Study of red-emitting LaAsO4:Eu3+ phosphor for color
rendering index improvement of WLEDs with dual-layer remote phosphor geometry
The remote phosphor structure is often disadvantageous in color quality but in terms of optics it is more convenient when compared to other phosphor structures such as conformal or in-cup ones. From this disadvantage, there are many studies to…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
The application of green YPO4:Ce3+,Tb3+ and red LiLaO2:Eu3+ layers to remote phosphor LED
Remote phosphor structure is commonly limited in color quality, but has greater luminous flux when comparing to structures with in-cup or conformal coating. From this dilemma, various researches with advance modifications have been proposed to…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
A new block cipher for image encryption based on multi chaotic systems
In this paper, a new algorithm for image encryption is proposed based on three chaotic systems which are Chen system, logistic map and two-dimensional (2D) Arnold cat map. First, a permutation scheme is applied to the image, and then shuffled image…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Acquiring higher lumen efficacy and color rendering index with green NaYF4:Er3+Yb3+ and red α-SrO·3B2O3:Sm2+ layers for designing remote phosphor LED
Lighting devices that apply diodes to create white light-emitting diodes
(WLEDs) can achieve remarkable results in color quality, especially those
containing quantum dots (QDs) and phosphor. The technique to create an appropriate package is…
(WLEDs) can achieve remarkable results in color quality, especially those
containing quantum dots (QDs) and phosphor. The technique to create an appropriate package is…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Improving optical properties of remote phosphor LED using green Y2O3:Ho3+ and red Mg4(F)(Ge, Sn)O6:Mn2+ layers
The lighting device that employs diodes to create white light (WLEDs) with quantum dots (QDs) and phosphor layers is a promising lighting method that is increasingly used in many fields on account of the remarkable color expressing ability. The QDs…