Tomy Abuzairi

Tomy Abuzairi
University of Indonesia | UI · Department of Electrical Engineering

Ph.D

About

58
Publications
16,078
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
212
Citations
Citations since 2016
52 Research Items
211 Citations
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
Additional affiliations
February 2012 - September 2013
University of Indonesia
Position
  • Lecturer
Education
October 2013 - September 2016
Shizuoka University
Field of study
  • Plasma Technology

Publications

Publications (58)
Conference Paper
A ventilator is a breathing support device that serves as a therapeutic tool or treatment tool for patients with respiratory system failure caused by various health problems or diseases. On ventilators, there are crucial parameters that need to be monitored in advance, such as inspiration–expiration (I:E) ratio, respiration rate, tidal volume, peak...
Article
Pain in a baby is difficult to detect is because the method for detecting pain is self-reporting even though babies themselves still cannot describe the pain verbally, then by observing changes in behavior in the form of facial expressions. Statistically, it is also recorded that about 80% of the world's population pays less attention to pain asses...
Article
Full-text available
This paper shows the attempt to increase the performance of triple-junction hydrogenated silicon solar cells with structure nc-Si:H/a-Si:H/a-SiGe:H. The wxAMPS software was used to simulate and optimize the design. In an attempt to increase the performance, an a-SiC:H layer on the p-layer was replaced with an a-Si:H layer and an a-SiGe layer was re...
Article
Full-text available
COVENT-Tester (COVID-19 VENTilator Tester) is a low-cost and open source ventilator tester developed to calibrate the output of medical ventilators, including tidal volume, inspiratory pressure, and oxygen concentration. Currently, there are several open-source ventilator testers, however, existing open-source ventilator testers are unable to measu...
Conference Paper
Stunting is one of nutritional problems faced in the world, especially in poor and developing countries. Stunting is a problem that is associated with an increased risk of morbidity and death, suboptimal brain till late motor development and stunted mental growth. Stunting is a condition of growth faltering due to the accumulation of nutrient insuf...
Article
Full-text available
In this COVID-19 pandemic, a non-contact handheld infrared thermometer is frequently used for fever screening. However, the handheld thermometer performance depends on the operator and the distance to the forehead. To address these problems, we present an infrared thermometer on the wall (iThermowall). The iThermowall is a low-cost non-contact ther...
Article
Full-text available
Perovskite solar cell is categorized as a third-generation solar cell which is used for its high-performance and low-cost production. However, device stability is a major problem in the development of perovskite solar cells. Mixed halide perovskite is one of the subjects that have been proposed to improve perovskite solar cell stability. Research a...
Article
Full-text available
Background: Mutation of the beta-globin gene (HBB) interferes with primary mRNA transcription, leading to beta-thalassemia disease. The IVS1nt1 and IVS1nt5 mutations were reported as two of the most prevalent intronic mutations associated with beta-thalassemia major. These mutations may affect the mRNA structure of the human beta-globin ( HBB ) gen...
Article
Background: Mutation of the beta-globin gene (HBB) interferes with primary mRNA transcription, leading to beta-thalassemia disease. The IVS1nt1 and IVS1nt5 mutations were reported as two of the most prevalent intronic mutations associated with beta-thalassemia major. These mutations may affect the mRNA structure of the human beta-globin ( HBB ) gen...
Article
Background: Mutation of the beta-globin gene (HBB) interferes with primary mRNA transcription, leading to beta-thalassemia disease. The IVS1nt1 and IVS1nt5 mutations were reported as two of the most prevalent intronic mutations associated with beta-thalassemia major. These mutations may affect the mRNA structure of the human beta-globin ( HBB ) gen...
Article
Full-text available
Solar Charge Controller (SCC) with Maximum Power Point Tracking (MPPT) is needed to extract maximum energy from photovoltaic. However, a SCC device with MPPT technology feature is expensive on the market due to the requirements for a high-power system. On the other hand, in lower power applications such as IoT sensors, solar street lights, and wire...
Conference Paper
Electrohydrodynamic drying (EHD) processes have been applied in many experiments. However, EHD rarely applied to drying medications, specifically medical powders. The EHD process reduces the water level of materials through a coronal wind by placing them between two electrodes that conduct a strong electric field. In this study, EHD is applied usin...
Conference Paper
A light curing unit (LCU) is a device that serves to improve the condition of damaged teeth. It has a high irradiance value, which is feared to damage pulp and tooth tissue. In the latest technology for dental applications, a high-power light-emitting diode (LED) has been used for a dental LCU. The purpose of this study is to determine the effect o...
Article
Full-text available
This paper details the design of a 1 × 8 optical power divider, using a gallium nitride (GaN) semiconductor on sapphire, which can be applied to underwater optical wireless communication. The design consists of nine parallel rectangular waveguides which are based on mode coupling phenomena. Analysis of the design was performed using the beam propag...
Article
Indonesia, as an agricultural country, is one of rice producer countries. In the rice processing chain, drying is the most important step to be done after harvesting. Electrohydrodynamic drying (EHD) is proposed as a drying method that is faster than sun exposure and having lower power consumption compared to commercial drying machine. In this rese...
Conference Paper
Full-text available
It is known that application of non-thermal plasma to the surface of an aqueous solution has a potent effect in bacteria inactivation. From literature review, the low pH value has the most potent properties of bacteria inactivation. In this work, we investigate the influence of the voltage of non-thermal plasma generator on the pH of aqueous soluti...
Conference Paper
Full-text available
Microfluidics is an emerging field that has given rise to a large number of scientific and technological developments over the last few years. The materials that have been employed for the construction of microfluidic devices have been diverse, ranging from traditional materials, such as silicon and glass, to newer polymeric materials. For instance...
Conference Paper
Wearable smart health monitoring devices have attracted considerable attention in both research community and industry. Some of the causes are the increasing healthcare costs, along with the growing technology. To address this demand, in this paper, design and evaluation of wearable health monitoring device integrated with smartphone were presented...
Conference Paper
Full-text available
We proposed weight monitoring system using load cell sensor for newborn incubator application. The weight sensing system consists of a load cell, conditioning signal circuit, and microcontroller Arduino Uno R3. The performance of the sensor was investigated by using the various weight from 0 up to 3000 g. Experiment results showed that this system...
Conference Paper
Plasma activated water (PAW) is a new approach to bacterial inactivation while ensuring safety and maintaining the properties of the material sterilized. Reported research imply that PAW has been effective for inactivation of bacteria. In this paper, plasma treatment using atmospheric pressure plasma was demonstrated. Physicochemical properties suc...
Conference Paper
This paper reports the design of respiratory sensor using fiber optic for newborn incubator application. The sensor works based on light intensity losses difference obtained due to thorax movement during respiration. The output of the sensor launched to support electronic circuits to be processed in Arduino Uno microcontroler such that the real-tim...
Conference Paper
Cardiovascular disease has been one of the leading causes of sudden cardiac deaths in many countries, covering Indonesia. Electrocardiogram (ECG) is a medical test to detect cardiac abnormalities by measuring the electrical activity generated by the heart, as the heart contracts. By using ECG, we can observe anomaly at the time of heart abnormaliti...
Article
Full-text available
In general, solar cells properties were measured under standardized environment. Recent method uses a Solar Simulator or Sun Simulator to measure a solar cell characteristic by the condition of 1000 W/m2 irradiance and 25°C temperature. However, solar simulator is expensive, therefore in this paper we propose a simple I-V characterization method wi...
Article
Full-text available
Lighting is an essential thing in performing daily activities and without sufficient lighting we will be difficult to see clearly. The problem is when there is no electricity, for example when we go to a cave or a forest or when there is a natural disaster that shuts down all the electricity. A portable lamp that can be charged by exposing the lamp...
Article
Full-text available
This paper present simple and inexpensive solar charge controller (SCC) using 8-bit microcontroller ATtiny85. The SCC using a pulse width modulation (PWM) signal to transistor and MOSFET to control current that generated by the microcontroller. The battery voltage state also monitored using a series resistor paralleled to the battery and the voltag...
Article
Full-text available
A solar street lamp is a lamp technology that utilizes solar cell to obtain electrical energy during the daylight hour by solar radiation and then use the electrical energy to provide light at night. Semiintegrated lamp tries to overcome complicated installation and expensive price of normally solar street lamp. Semi-integrated solar street lamp on...
Conference Paper
Tropical countries, such as Indonesia, need to consider the thread-off between high average solar irradiance throughout the year and the sporadic clouds due to the high rainfall in utilization of solar energy conversion Cu(In, Ga)Se2 (CIGS) with Polyimide substrate is known as one of the materials that produces significant power under low-light and...
Chapter
In this study, we propose the micro-scale surface functionalization techniques using a maskless, versatile, simple tool, represented by a nano- or micro-capillary atmospheric pressure plasma jet (APPJs). We show the possibility of size-controlled surface functionalization on polymer substrate with amino groups or carboxyl groups by using fluorescen...
Article
Full-text available
Fluoropolymers are difficult materials to modify the surfaces because of strong C-F bonds. In this study, the surface modification of fluoropolymer films such as polytetrafluoroethylene (PTFE) with amino groups was performed by using He/NH3 gas mixture atmospheric pressure plasma jets with negatively-biased substrate. It is expected that the ion bo...
Article
An experimental study on the dynamic behaviour of microcapillary atmospheric pressure plasma jets (APPJs) with 5 μm tip size for surfaces of different conductivity is reported. Electrical and spatio-temporal characteristics of the APPJs are monitored using high voltage probe, current monitor and high speed intensified charge couple device camera. F...
Article
Ultrafine plasma jet is a promising technology with great potential for nano- or micro-scale surface modification. In this letter, we demonstrated the use of ultrafine atmospheric pressure plasma jet (APPJ) for patterning bio-immobilization on vertically aligned carbon nanotube (CNT) microarray platform without a physical mask. The biotin-avidin sy...
Article
Full-text available
We report for the first time a simple optimization of triple-junction solar cell nc-Si:H/a-Si:H/a-SiGe:H using computer modeling and Robust Design. Firstly we performed a computer modeling of solar cell by wxAMPS software. Subsequently, we investigated the parameters of the solar cell layers and the effect of the solar cell efficiency using Robust...
Conference Paper
Full-text available
This study aimed to determine the effects of Gauss doping profile on electric potential of p-n diode. This effect is studied by simulating PN diodes at equilibrium condition with differences in doping fall-off constant (dfc) using MATLAB and COMSOL software. According to the simulation results, it concluded that p-n diode with different Gaussian do...
Article
Full-text available
Tungsten oxide is an n-type semiconductor with interesting physical and chemical properties that make it suitable for various technological applications. Tungsten oxide nanowires were synthesized not only at low temperature but also without the use of any catalysts. The tungsten oxide nanowires were synthesized at 550 °C with tungsten layers onto t...

Network

Cited By