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All Journal International Journal of Electrical and Computer Engineering Perfecting a Video Game with Game Metrics BULETIN FISIKA
I Wayan Supardi
Universitas Udayana
Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Environmental Science Materials Science & Nanotechnology Physics

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The Utilization of Physics Parameter to Classify Histopathology Types of Invasive Ductal Carcinoma (IDC) and Invasive Lobular Carcinoma (ILC) by using K-Nearest Neighbourhood (KNN) Method Anak Agung Ngurah Gunawan; I Wayan Supardi; S. Poniman; Bagus G. Dharmawan
International Journal of Electrical and Computer Engineering (IJECE) Vol 8, No 4: August 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (614.86 KB) | DOI: 10.11591/ijece.v8i4.pp2442-2450

Abstract

Medical imaging process has evolved since 1996 until now. The forming of Computer Aided Diagnostic (CAD) is very helpful to the radiologists to diagnose breast cancer. KNN method is a method to do classification toward the object based on the learning data which the range is nearest to the object. We analysed two types of cancers IDC dan ILC. 10 parameters were observed in 1-10 pixels distance in 145 IDC dan 7 ILC. We found that the Mean of Hm(yd,d) at 1-5 pixeis the only significant parameters that distingguish IDC and ILC. This parameter at 1-5 pixels should be applied in KNN method. This finding need to be tested in diffrerent areas before it will be applied in cancer diagnostic.
Classification of breast cancer grades using physical parameters and K-nearest neighbor method Anak Agung Ngurah Gunawan; S. Poniman; I. Wayan Supardi
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 17, No 2: April 2019
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v17i2.9797

Abstract

Breast cancer is a health problem in the world. To overcome this problem requires early detection of breast cancer. The purpose of this study is to classify early breast cancer grades. Combination of physical parameters with k-nearest neighbor Method is proposed to detect early breast cancer grades. The experiments were performed on 87 mammograms consisting of 12 mammograms of grade 1,41 mammograms of grade 2 and 34 mammogram of grade 3. The proposed method was effective to classify the grades of breast cancer by an accuracy of 64.36%, 50% sensitivity and 73,5% specitifity. Physical parameters can be used to classify grades of breast cancer. The results of this study can be used to complement the diagnosis of breast mammography examination.
BEL CERDAS CERMAT MENGGUNAKAN REMOTE CONTROL WIRELESS BERBASIS MIKROKONTROLER AT89S52 Ni Luh Putu Anggreni; I Wayan Supardi; Nyoman Wendri
BULETIN FISIKA Vol 15 No 2 (2014): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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Abstract

successfully designed. AT89S52 microcontroller used to control the entire information system with sevensegment display and ULN2003 serves as a current amplifier to activate the seven segment LED displaycompilers. The sensor are used is AT89S52 based wireless remote control with a maximum distance of thesensor placement that is sensor with a frequency of 27 MHz is 19 m and the sensor with a frequency of 49MHz is 20 m, while for the sensor with a frequency of 27 MHz that is a sensor with a series of supportingcircuit was 80.4 cm and the sensor with a frequency of 49 MHz is 90.4 cm.
Effects of Magnetic Field Exposure on Biosynthetic Reaction of Gold Nanoparticles (AuNP) Using Sambiloto Leaf Extract (Andrographis paniculata ness) Maria Yulni Imas; Ratih Wulandari; Ni Nyoman Rupiasih; I Wayan Supardi
BULETIN FISIKA Vol 21 No 1 (2020): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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Abstract

Research has been conducted to determine the effect of magnetic field exposure on the biosynthesis reaction of gold nanoparticles (AuNP) using Sambiloto leaf extract (Andrographis paniculata ness). The observations were made in two stages, namely optimization and synthesis rate. The optimization stage is carried out in a variation of the synthesis ratio (AuCl 3 solution (in ?l): Sambiloto leaf extract (in ml)) which are 2:10, 5:10, 10:10, 15:10, 20:10, 30:10 and 40:10. The results obtained from the optimization stage are used at the stage of determining the rate of synthesis reaction and then used to study the effect of magnetic field exposure on the rate of the AuNP synthesis reaction. The magnitude of the magnetic field used is 1.5 mT and exposure time of 12 hours. The synthesis results were characterized using UV-Vis spectrophotometer with the result that the absorbance value is a function of the wavelength of Surface Plasmon Resonance (SPR). The optimization phase was obtained that the synthesis volume ratio of 30 ?l: 10 ml gave the greatest absorbance value for the synthesis time of ± 1 hour. The reaction rate stage was obtained that the optimum time for AuNP synthesis was 1 hour both without and with the effect of magnetic field exposure, with the characteristic wavelength of the SPR and its absorbance value without the field of 535.5 nm, 0.938 a.u. and with a field of 526.0 nm, 0.880 a.u.
Analisis Kerentanan Wilayah Terhadap Gempabumi Berdasarkan Parameter Nilai Kerapuhan Batuan (B-Value) Dan Peak Ground Acceleration (PGA) Di Provinsi Bali Amalia Dwi Lestari; Komang Ngurah Suarbawa; I Wayan Supardi; I Putu Dedy Pratama
BULETIN FISIKA Vol 23 No 2 (2022): BULETIN FISIKA August Edition
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2022.v23.i02.p04

Abstract

Abstract - Bali is an area that is prone to earthquake hazards. This is because Bali is flanked by two causes of earthquakes, namely a subduction zone in the south and a back arc fault in the north. One of the efforts to minimize damage or loss caused by earthquakes is to analyze the vulnerability of an area to earthquakes. In this study, the earthquake parameters used as hazard indicators were the level of rock fragility (b-value) and maximum ground acceleration (PGA). Based on the results of the b-value calculation using the Maximum Likelihood method, the rock fragility level for the Bali region is obtained from 0.370 to 1.419. While the results of the PGA calculation using two empirical methods, namely the empirical M.V. Mickey and Lin Wu's empirical method is known that the empirical method of M.V. Mickey is more suitable for use in the Bali area than Lin Wu's empirical method, with PGA values ??ranging from 517.32-828.58 gal. So based on the results of the analysis of the two earthquake parameters, it is found that the area of ??Bali that is vulnerable to earthquakes is the western part of Buleleng Regency and most of Jembrana Regency. Keywords: b-value, PGA, Maximum Likelihood, M.V. Mickey, Lin Wu, Bali
PENGARUH PERLAKUAN MIKROGRAVITASI PADA BIJI CABAI RAWIT TERHADAP LAJU PERTUMBUHAN TANAMAN CABAI RAWIT (CAPSICUM FRUTESCENS L.) Ni Luh Yuni Pramita Utami; Ni Nyoman Rupiasih; I Wayan Supardi
BULETIN FISIKA Vol 18 No 1 (2017): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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Abstract

The study has been done on the effect of microgravity on cayenne pepper seed (Capsicum frutescens L.) on the growth rate and percentage of live of cayenne pepper plant. Microgravity is simulated by 2-D clinostat with the rotation speed of 2.7 rpm (1.22 × 10-4 g). The microgravity treatments werevariatewith time, known for 12 h (S1), 24 h (S2), and 48 h (S3).The seeds that have been clinorotated were planted in normal gravity environment, 1 g. Plant height and percentage of life measurements were carried out every dayduring the vegetative phase of plant of 0-40 days. The results showed that microgravity treatment on seeds gives positive effect on the growth rate of the cayenne pepper plant.
PERANCANGAN DAN PEMBUATAN SISTEM PENGENDALI ROBOT DENGAN MENGGUNAKAN ISYARAT PUPIL MATA I Wayan Supardi; Fahim Mamduh; N. Nyoman Rupiasih; Pt Widyatmika
BULETIN FISIKA Vol 13 No 1 (2012): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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Abstract

It has designed and constructed a robot control system using positions eye pupil cues with motion detection method. The method detects changes in image as a process of movement. The image of the eye pupil was captured by a webcam and subsequently converted into a gray scale. To determine the direction of motion of the prototype robot, has been used the rules of segmentation e.g. the division of area of the image obtained. In every area of an image or segmentation unit will be set to a detector, and if there is movement in that area will be reported in the percentage of movement. Percentage value of the segmentation cells is fed to the parallel port so the prototype robot can move forward, turn right, turn left, and stop.
RANCANGAN RANGKAIAN SIMULASI LUXMETER DENGAN MENGGUNAKAN SENSOR LIGHT DEPENDENT RESISTOR (LDR) BERBASIS MIKROKONTROLER AT89S52 DENGAN PROGRAM PROTEUS 7.0 I Kadek Widiantara; I Wayan Supardi; Nyoman Wendri
BULETIN FISIKA Vol 17 No 2 (2016): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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Abstract

It has been designed a series of simulations using sensors Luxmeter Light Dependent Resistor (LDR) based Microcontroller AT89S52 with proteus 7.0 program that has a variety of functions and can be used to assist the people work. One of its functions can be applied as a measure of light intensity. Program into the controller of the system Lux Meter work and most of the performance is determined by a given program. Speed performance of a device based mikrokontroler also very dependent on the value of the frequency of the crystal oscillator is used.
PERANCANGAN SISTEM KONTROL OTOMATIS LAMPU PENERANGAN PADA JANGKA WAKTU 24 JAM BERBASIS MIKROKONTROLER AT89S51 I Wyn Supardi; Nyoman Wendri; K.N. Suarbawa
BULETIN FISIKA Vol 13 No 2 (2012): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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Abstract

Has successfully created a tool Automatic Lamp Illumination Control System based on Microcontroller AT89S51. This tool is used to turn on and dim the lights in the room. The series of Automatic Lamp Illumination Control system based on Microcontroller AT89S51 can turn on lights automatically. NSL19_M51 LDR as a sensor. Lights lit up at 19.00 - 24.00 with the intensity of 020 lux, the intensity is 001 lux dimmest occurred at 06:00 hours. This is in accordance with the principle of LDR in a state where the light resistance of the LDR is smaller then a small voltage and the lights dimmed, if in the dark resistance of the LDRvoltage is large and bright lights.
PERANCANGAN ROBOT PENGHINDAR HALANGAN MENGGUNAKAN SENSOR ULTRASONIK BERBASIS MIKROKONTROLER AT89S51 I Wayan Supardi; Nyoman Wendri; N. L. P. Sarasmitha
BULETIN FISIKA Vol 14 No 1 (2013): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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Abstract

It has been designed and fabricated robot obstacle avoidance using ultrasonic Sensors based microcontroller AT89S51. Ultrasonic sensors to function as an input that will beprocessed by the microcontroller AT89S51 to turn on or turn off the motor.Obstacleavoidance robot consists of three pairs of ultrasonic sensors, where a pair of ultrasonic sensors consist of a series of sensor transmitter and receiver sensor circuit, a DC motor drive circuit and the minimum system using IC AT89S51. Transmitter and receiver sensors ultrasonic sensors placed side by side, at a distance of 10 cm or less than 10 cm where tension is 900 mV or more than 900 mV robot will turn.
Co-Authors A. A. Ngurah Gunawan Adnyana, I Gusti Agung Putra Amalia Dwi Lestari Anak Agung Intan Rahmasari Arief Laksono Artawan, Made Dwi Bagus G. Dharmawan Dewa Ayu Sukma Pranastia Efrensiana Ana Melti F, Feliatra Fahim Mamduh Feriandanu Hakim G.A Putra Adnyana I Gde Antha Kasmawan I Gede Angga Rimawan I Gede Didi Jimbarwan I Kadek Agus Sara Sawita I Made Oka Guna Antara I Nyoman Gede Putra Wibawa I Putu Dedy Pratama I Wayan Wisnawa Saputra I Wayan Wisnawa Saputra Ida Bagus Made Suryatika K N Suarbawa K N Suarbawa K. N Suarbawa K. P. Wibawa K.N. Suarbawa Komang Ngurah Suarbawa Kunthi, Mahendy Risnawati Laksono, Arief Made Dwi Artawan Made Padmika Mahayani, Ni Wayan Dewi Mahendy Risnawati Kunthi Maria Yulni Imas N. L. P. Sarasmitha Ni Luh Putu Anggreni Ni Luh Yuni Pramita Utami Ni Made Yuliantini Ni Nyoman Rupiasih Ni Nyoman, Ratini Ni Wayan Dewi Mahayani Ni Wayan Dewi Mahayani Nyoman Wendri Padmika, Made pandu lukito Poniman, S. Pt Widyatmika Putu Ayu Adi Susanti Ratih Wulandari Ria Yuliani Rimawan, I Gede Angga Saputra, I Wayan Wisnawa Satriya Wibawa, I Made Yuli Nurfadhillah