Browse Items (66 total)
- Collection: Vol. 18, No. 5 2020
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TELKOMNIKA Telecommunication, Computing, Electronics and Control
Improving color rendering index of WLEDs with convex-dual-layer remote phosphor geometry using red-emitting CaGa2S4:Mn2+ phosphor
The white-light light-emitting diode (LED), a conventional illumination
solution, usually consists of one chip and one phosphor layer, which leads to the insufficient color rendering index (CRI) in this configuration. To optimize the efficiency of…
solution, usually consists of one chip and one phosphor layer, which leads to the insufficient color rendering index (CRI) in this configuration. To optimize the efficiency of…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
The options in remote phosphor structure for better white LEDs color quality
The WLEDs configuration with remote phosphor layers has higher
luminescent performance than WLEDs with dispense coating or conformal coating and is applied for many modern devices. However, managing the chromatic performance of lighting structure…
luminescent performance than WLEDs with dispense coating or conformal coating and is applied for many modern devices. However, managing the chromatic performance of lighting structure…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Intercept probability analysis in DF time switching full-duplex relaying network with impact of Co-channel interference at the eavesdropper
In this research, we propose and investigate intercept probability analysis in DF time switching relaying full-duplex with impact of Co-channel interference at the eavesdropper. In the beginning stage, we present the DF time switching relaying…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Sr[Mg3SiN4]Eu2+ phosphor: solution for enhancing the optical properties of the 5600K remote-packaging WLEDs
In the last decade, light-emitting diodes (LEDs), which based on spontaneous light emission in semiconductors can be considered as the main light sources for civil and industrial purposes. In this paper, we presented and investigated the effect of…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Viterbi optimization for crime detection and identification
In this paper, we introduce two types of hybridization. The first contribution is the hybridization between the Viterbi algorithm and Baum Welch in order to predict crime locations. While the second contribution considers the optimization based on…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Detecting Indonesian ambiguous sentences using Boyer-Moore algorithm
Ambiguous sentences are divided into 3 types namely phonetic, lexical, and grammatical. This study focuses on grammatical ambiguous sentences, grammatical ambiguous sentences are ambiguities that occur due to incorrect grammar, but this ambiguity…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Kernal based speaker specific feature extraction and its applications in iTaukei cross language speaker recognition
Extraction and classification algorithms based on kernel nonlinear features are popular in the new direction of research in machine learning. This research paper considers their practical application in the iTaukei automatic speaker recognition…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
An overview of internet of things
The internet of things is an emerging technology that is currently present in most processes and devices, allowing to improve the quality of life of people and facilitating the access to specific information and services. The main purpose of the…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Mobile learning architecture using fog computing and adaptive data streaming
With the huge development in mobile and network fields, sensor
technologies and fog computing help the students for more effective learning, flexible and in and effective manner from anywhere. Using the mobile device for learn encourage the…
technologies and fog computing help the students for more effective learning, flexible and in and effective manner from anywhere. Using the mobile device for learn encourage the…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Determination of flexibility of workers working time through Taguchi method approach
Human factor is one of the important elements in manufacturing world, despite their important role in improvement the production flow, they have been neglected while scheduling for many decades. In this paper the researchers taken the human factor…