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TELKOMNIKA Telecommunication, Computing, Electronics and Control
Enhancing light sources color homogeneity in high-power phosphor-based white LED using ZnO particles
Color uniformity is one of the essentials for the on-going development of
WLED. To achieve a high color uniformity index, increasing the scattering events within the phosphor layers was reported to be the most efficient method and in this article,…
WLED. To achieve a high color uniformity index, increasing the scattering events within the phosphor layers was reported to be the most efficient method and in this article,…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
A novel delay dictionary design for compressive sensing-based time varying channel estimation in OFDM systems
Compressive sensing (CS) is a new attractive technique adopted for linear time varying channel estimation. orthogonal frequency division multiplexing (OFDM) was proposed to be used in 4G and 5G which supports high data rate requirements. Different…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Sound event detection using deep neural networks
We applied various architectures of deep neural networks for sound event detection and compared their performance using two different datasets. Feed forward neural network (FNN), convolutional neural network (CNN), recurrent neural network (RNN) and…
Serum D-dimer level as a predictor of neurological functional prognosis in cases of head injuries caused by road trafc accidents
Background: The number of trafc fatalities is declining in Japan; however, a large proportion of head injuries are still
attributable to trafc accidents. Severe head trauma may cause progressive and devastating coagulopathy owing to
exacerbated…
attributable to trafc accidents. Severe head trauma may cause progressive and devastating coagulopathy owing to
exacerbated…
Sodium and potassium disorders in patients with COPD exacerbation presenting to the emergency department
Background: Electrolyte disorders are common in the emergency department. Hyponatremia is known to be associ‑
ated with adverse outcome in community-acquired pneumonia (CAP) and acute exacerbation of chronic obstructive
pulmonary disease (AECOPD).…
ated with adverse outcome in community-acquired pneumonia (CAP) and acute exacerbation of chronic obstructive
pulmonary disease (AECOPD).…
The efects of Pre-hospital Trauma Life Support (PHTLS) training program on the on-scene time interval
Background: Recent studies have shown that reducing pre-hospital time could improve the outcomes of trauma
victims. Due to the importance of pre-hospital time management, this study aims to determine the efects of the Prehospital Trauma Life…
victims. Due to the importance of pre-hospital time management, this study aims to determine the efects of the Prehospital Trauma Life…
The quality of pre-announcement communication and the accuracy of estimated arrival time in critically ill patients, a prospective observational study
Background: Efcient communication between (helicopter) emergency medical services ((H)EMS) and healthcare
professionals in the emergency department (ED) is essential to facilitate appropriate team mobilization and preparation for critically ill…
professionals in the emergency department (ED) is essential to facilitate appropriate team mobilization and preparation for critically ill…
Trauma triage criteria as predictors of severe injury - a Swedish multicenter cohort study
Background: Adequate performance of trauma team activation (TTA) criteria is important in order to accurately
triage trauma patients. The Swedish National Trauma Triage Criteria (SNTTC) consists of 29 criteria that trigger either a
Trauma Alert,…
triage trauma patients. The Swedish National Trauma Triage Criteria (SNTTC) consists of 29 criteria that trigger either a
Trauma Alert,…
Usability of novel major TraumaApp for digital data collection
Background: Delivery of major trauma care is complex and often fast paced. Clear and comprehensive documentation is paramount to support efective communication during complex clinical care episodes, and to allow collection
of data for audit,…
of data for audit,…
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…