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The 1st Annual Advanced Technology, Applied Science, and Engineering Conference (ATASEC 2019)

Event starts on 2019.08.29 for 2 days in Malang

https://atasec.polinema.ac.id/2019 | https://ifory.id/conf-abstract/m3xvkNqUG

Page 1 (data 1 to 30 of 151) | Displayed ini 30 data/page

A Compact 5.8 GHz with Double 90 Degree Phase Difference Output Using Butler Matrix Feeding Network
Irfan Mujahidin, Dwi Arman Prasetya, Putri Surya Arinda

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Corresponding Author
Irfan Mujahidin

Institutions
Electrical Engineering
University of Merdeka Malang

Abstract
The wireless communication network system requires complex configuration component of the electromagnetic feeding network circuit, and high-cost material, especially for the electromagnetic component on a high frequency.5.8 GHz with Double 90-degree phase difference output using butler matrix feeding Network for the wireless communication network system. it is the novel shaped and configuration microstrip electromagnetic circuit with the free frequency, no complex configuration, and low-cost material at the 5.8 GHz. This system is package consists of a 5.8 GHz Microstrip antenna with the array rectangular microstrip antenna, and Butler matrix to generate double 90-degree phase difference with quad input and quad output. The Antenna has a single band and narrow bandwidth with the four-port and have a single working frequency that is 5.58 GHz under -10dB S parameter and using via hole for a transmission line to network feeding system, the radiation pattern is directional and the gain level is 6.83 dB and 50 ohms feeding impedance. The 90-degree hybrid coupler has S11 of -26.19 dB, S21 of 31.65 dB, S51 of -26.18 dB, and S61 of -32.52 dB that all is specification has a good working. And overall size of the proposed this configuration is 80 mm times 65 mm with Phenolic White Paper with a dielectric constant is 4.4 that has 50ohm.

Keywords
Microstrip antenna, Butler matrix, Array rectangular microstrip antenna.

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/GA3Zd69K4FQz


A FOAM-MAT DRYING METHOD TO PREPARE HIGH CONTENT OF IRON IN INSTANT DRINK POWDER OF MIX FRUITS AND VEGETABLES AS PREVENTION OF DISMENORE BY USING COMPOSITION VARIATIONS AND DRYING TEMPERATURES
Nur Muhammad Nashrullah, Ibra Moch. Isdes, Fanny Rahmadani, and Faidliyah Nilna Minah

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Corresponding Author
Nur Muhammad Nashrullah

Institutions
Chemical Engineering Depatement, Faculty of Industrial Technology, Institute of Technology National Malang, Malang City

Abstract
Making a drink mix fruits and vegetables from the red spinach,red bean,guava and beet fruit can be a way to enhance iron content of their products, and will raise the value of favorite of the society towards it. This study aims to determine the right formula of the variation of composition fruits and vegetables and temperature levels drying against iron and find out acceptance to the society in powder fruit and vegetable drink mix. Methods used to make a drink mix fruit that is a Foam-Mat Drying method. Based on an analysis of the iron, the best conditions exist to variation composition 40% of guava at temperature drying 60 oC with 6,05 mg/100g of iron content. The temperature drying affecting the iron and vitamin C in mixed fruits and vegetables. Based on the hedonic organoleptic test, mix fruits and vegetables can be well accpted by the society for its color from variations composition 40% of red bean (60 oC), the aroma of 40% of guava (60 oC), and the taste of 40% beet fruit (50 oC). So it can be concluded that variations composition fruit that is produced with compisition of the 40% of guava.

Keywords
Mix fruits and vegetables, red spinach, red bean, guava, beet fruit, iron and vitamin C

Topic
Chemical Engineering

Link: https://ifory.id/abstract/bZAtQpRGz4yk


A Low Public Awareness of Illegals Red Colorants Usage: A Case Study in Ketchup and Crackers at Traditional Market of Sukolilo Surabaya
O Rachmaniah1*, Y Rahmawati1, Ni Made I Suari1, F Kurniawansyah1, D S Bhuana1, E O Ningrum2, N F Puspita2, A Puspitasari3, F Fakhrinanda1, I Istiqomah1, M R Muhsin1, and A P Widya1

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Corresponding Author
Orchidea Rachmaniah

Institutions
1 Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111, Indonesia
2 Department of Chemical Industrial Engineering, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111, Indonesia
3 Laboratory of Technology Medic, Polithecnic of Health, Pucang Jajar Tengah 56, Surabaya 60282, Indonesia

Abstract
Public awareness to assess a healthy and safe food products is low. Therefore unhealthy and unsafe food product is still easily found and distributed, especially in traditional market. Food additives, i.e. synthetic colorants and sweetener, are widely applied in food due to its colour stability, attractive in colours, and cheaper. Therefore, a survey and determination of illegal reds colorants, rhodamine and amaranth, are conducted particularly in ketchup and crackers in Sukolilo Area of Surabaya, East Java, Indonesia as well as three legal reds colorants red allure, erythrosine, and ponceau 4R. Seven traditional markets at Sukolilo, a high density of population district at East Surabaya area ca. 4227 person/km2 (total area 23.69 km2), Keputih, Gebang Putih, Menur Pumpungan, Nginden Jangkungan, Semolowaru, Klampis Ngasem, and Medokan Semampir, were sampled. Instead ketchup and crackers, beverages and traditional cakes are also classified containing reds colorant. However none of those are found at Medokan Semampir Traditional Market. They are 38 samples were collected from six traditional markets at Sukolilo district: ketchup 31.58%, crakers 5.26%, beverages 23.68%, traditional cakes 28.95% while the rest is classified as other, i.e. seasonings and sausages. Unfortunately, all the collected samples contains both rhodamine and amaranth in various concentration ca. 0.106-283 ppm. Red allure, erythrosine, and ponceau 4R, were also detected in all samples. Thirty nine percent of the samples contains red allure, erythrosine, or ponceau 4R upper the maximum allowable concentration, ca. 300 mg/kg, though 34% of them are legally registered, having either MD or PIRT registration number.

Keywords
Crackers, Food Additives, Food awarness, Healthy Food, Red Colorants, Rhodhamine

Topic
Environmental Science and Engineering

Link: https://ifory.id/abstract/9UJPxcA6BD3w


A New Form of Steel Base Isolation System for Seismic High-Rise Building
Taufiq Rochman, Nawir Rasidi, Sumardi, Fadjar Purnomo

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Corresponding Author
Taufiq Rochman

Institutions
State Polytechnics of Malang

Abstract
The higher story of a building then it will be more vulnerable to its earthquake or seismic responses. The use of seismic devices will reduce earthquake force. In this study, the steel base isolation material has been proposed. This paper aims to design a new steel base isolation system that have good resistance in both of seismic vibration and axial pull out. The building data are 3D mini three-story, six-story, nine-story steel frame structures. The shaking table is used to test with two types of vibration, medium and maximum. FEM analysis using STAAD. Pro V8i was implemented to find the seismic responses. From the calculation results, a reduced response was obtained in conditions of moderate damage to a three-story frame with an average acceleration of 88% reduction, a maximum acceleration of 22% reduction and a six-story frame in heavy damage with an average acceleration of 73% , the maximum acceleration is reduced into 43%.

Keywords
Seismic devices, 3D steel frame, steel base isolation system

Topic
Civil Engineering

Link: https://ifory.id/abstract/UnkjgGBYm97Z


A Special Stop Space Needs Specifically For Motorbikes
Arbi P Lukman (*), Meassa M Sari, Syahrizal Azis

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Corresponding Author
arbi parianta lukman

Institutions
Civil Engineering Study Program, Serang Raya University
Jalan raya serang-cilegon KM 5, Serang 42123, Indonesia
*emailarby[at]gmail.com

Abstract
At grade intersection engaged two or more road section in one place. Low intersection performance will cause congestion. Two wheeled vehicles often stop anywhere among the red light period, because its small dimension and ability to maneuver, traffic flow gets disrupted. Special Stop Space (SSS) was taken as one solution for two-wheeled vehicles user to stop at certain area in intersection during red light period. According to Special Stop Space 2015 manual, there were only one side of intersection that didn-t qualify for SSS planning which was northern side. Meanwhile, eastern side qualified for SSS type P with 87.1 m^2 area. Southern side was qualify for SSS box-type with 70.4 m^2 area. Lastly, western side matched with SSS type P with 71.5m^2 area.

Keywords
Special Stop Space; Intersection; Highway

Topic
Civil Engineering

Link: https://ifory.id/abstract/k9jZfWqBEbzX


ACTOR: Design of Aerobic Bioreactor as an Effort to Increase Value of Rabbit Feces
Rachmad Wijaya (a*), Achmad Ilmi Arya Putra (a), Lucky Wiratama (b), Vera Cahya Rinjayani (b), Riyadlotul Ula (b), Gunomo Djoyowasito (b)

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Corresponding Author
VERA CAHYA RINJAYANI

Institutions
(a) Agricultural Engineering Faculty of Agricultural Technology, Brawijaya University, Indonesia
*wijaya.rahmad40[at]yahoo.com
(b)Agroindustrial Technology Faculty of Agricultural Technology, Brawijaya Univesity, Indonesia

Abstract
Composting can be done using conventional methods, but this method has a weakness in terms of time because temperature and humidity are not in optimal values. Aerobic Bioreactor is a design tool for processing rabbit livestock waste into organic compost in aerobic conditions by implementing a DS18B20 temperature sensor and YL69 humidity. The sensor will provide input temperature and humidity to be forwarded to the Fuzzy Logic System control unit. Fuzzy Logic System controller is considered more capable in maintaining temperature and humidity for microorganisms because of the very high level of precision. The resulting output is then channeled to a humidity-enhancing sprayer and blower to reduce temperature and humidity to maintain system stability. Aerobic Bioreactor is equipped with a stirrer to facilitate reversal and aeration during composting compared to fixed bioreactor. The power input used is quite low, so the calculation of profits for rabbit farmers will be higher. It is expected that Aerobic Bioreactor can be a solution in the problem of low profit rabbit breeders.

Keywords
Aerobic, Bioreactor, Compost, Livestock Waste, Rabbit

Topic
Environmental Science and Engineering

Link: https://ifory.id/abstract/wNA6tJ3vfCeY


Adaptive Learning System in Open Educational Resource Digital Sharing Community as a Media for Learning Autonomous Students
Hakkun Elmunsyah (a*), Wahyu Nur Hidayat (a), Syaad Patmanthara (a), Felix Andika Dwiyanto (a), Wahyu Mulyo Utomo (b), Kusumadyahdewi (c)

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Corresponding Author
Hakkun Elmunsyah

Institutions
(a) State University of Malang, Malang, Indonesia
(*) hakkun[at]um.ac.id
(b) Universiti Tun Hussein Onn Malaysia, Malaysia
(c) State Islamic University of Maulana Malik Ibrahim Malang, Malang, Indonesia

Abstract
In the disruptive era, online learning models began to be widely developed. Malang State University as one of the state universities in Indonesia is developing and implementing a new curriculum with the theme of Life-Based Learning (LBL) as a form of adaptation in facing the Industrial 4.0 era. Through LBL, college graduates are expected to not only master competencies, but be able to develop their abilities to be able to face the needs and developments of the industrial revolution era 4.0. This study aims to develop an LMS-based transdisciplinary learning portal supported by internet and mobile technology. The product developed is reinforced with additional features in the form of Adaptive Learning System (ALS) in the digital sharing community (DSC) learning portal which is expected to be able to improve student capabilities. The development procedure model used in this study is to use the 4D model suggested by Thiagarajan and its requirements such as design analysis, validation and determination of research subjects. The steps in this model are the four stages of development, namely define, design, develop, and disseminate. Based on the overall analysis of the results of data collection it can be concluded that the results of the product feasibility trial, obtain very decent results. The details of the feasibility results were obtained from media experts 97.68%, material experts 96, 45.%, small groups with 30 user users obtained 90.85% and large groups 94.25% ,. Based on these results it can be concluded that the ALS products on DSC for learning can be categorized as very appropriate to be used for the learning process, because the results obtained are above 85%.

Keywords
Online Course; LMS; ALS; DSC; 4D

Topic
Vocational Engineering and Technology

Link: https://ifory.id/abstract/MhAmNC9JDVKP


Adaptive voltage control for Firefly Algorithm-MPPT output in PV system
Lucky Nindya Palupi (a*), Totok Winarno (a), Agus Pracoyo (a), Lunde Ardhenta (b)

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Corresponding Author
Lucky Nindya Palupi

Institutions
a) Department of Electrical Engineering, State Polytechnic of Malang Soekarno Hatta St. 9 Malang, Indonesia
*lucky.nindya.palupi[at]gmail.com
b) Department of Electrical Engineering, Brawijaya University, MT Haryono St. 167 Malang, Indonesia

Abstract
The development of DC microgrid is increasingly being carried out recently aimed to reduce or even replace energy produced from fossil energy. Many kind of energy sources are used in microgrid systems, but the most commonly used is photovoltaic (PV) to convert sunlight into electricity. PV systems have limitations in their usage time, besides that PV systems also utilize the maximum power point tracking (MPPT) algorithm to maximize power from PV. The use of MPPT in PV systems has a positive impact that can improve power efficiency in partially shaded conditions. MPPT are able to cause unstable voltage problems and exceed the input voltage of the system. In this paper, the performance of adaptive control will be explained using a model reference adaptive controller (MRAC) approach, the control mechanism where the system parameters change dynamically. The reference model is obtained from optimization using MIT rules. Adaptive control will be applied to the buck converter and MPPT controls using the firefly algorithm to be applied to the SEPIC converter. In this study the simulation was carried out and showed Integral of the absolute value of the error (IAE) and integral of the square value of the error (ISE) of the proposed method was smaller than the PID controller. Therefore, the proposed method is able to track the reference voltage smoothly, and have robustness to variations in the parameter interference.

Keywords
Photovoltaic (PV); Buck converter; Firefly Algorithm-MPPT; SEPIC Converter

Topic
Electrical Power Systems Engineering

Link: https://ifory.id/abstract/AG6TMZCFXhnm


Agricultural Drought Monitoring based on Vegetation Health Index of MODIS Data in East Java Indonesia
Annisa Puspa Kirana, Rudy Ariyanto, Ariadi Retno TH, Eka Larasati Amalia

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Corresponding Author
ANNISA PUSPA KIRANA

Institutions
State Polytechnic of Malang

Abstract
Agriculture is among the most vulnerable of all sectors to drought. Droughts cause serious effects on the agricultural sector due to its heavy dependence on rainfall. In the present work, we use the Vegetation Health Index (VHI) of MODIS Data as drought indices to monitoring the drought over East Java, Indonesia. VHI is computed based on the vegetation index and land surface temperature which are very important satellite products for drought monitoring with remote sensing. VHI describes vegetation health from the combination of TCI (temperature) and VCI (vegetation condition).

Keywords
agriculture, satellite, monitoring, MODIS, VHI, TCI, VCI

Topic
Environmental Science and Engineering

Link: https://ifory.id/abstract/Vaw47m3e6fp9


An Analysis of Characteristic of Asphalt Pen 60/70 Mixed with Gilsonite Additive
Yusmiati Kusuma(a), Husnul Fikri(a), Fenny Novita Meysabed Sianturi(a)

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Corresponding Author
Fenny Novita Meysabed Sianturi

Institutions
(a) Civil Engineering Department, State Polytechnic of Bandung,Bandung 40012, Indonesia

Abstract
The increase of population growth in Indonesia causes an increase of traffic volume on the road. With the increase of traffic volume, it is necessary to improve the quality of road construction, especially from the pavement layer quality. On the road that have moderate traffic volume to high traffic volume, several problems in the pavement layer is often found. One way to decrease the road damage is by improving the quality of asphalt mixture, which means increasing the asphalt quality. The research design is conducted by testing the characteristic of Asphalt Pen 60/70 and also the Asphalt Pen 60/70 mixed with gilsonite additive at 4.5%, 5.5%, 6.5%, 7.5%, and 8.5% of the asphalt weight. Asphalt Pen 60/70 mixed with gilsonite additive is called as modified asphalt. Based on the testing result, it is obtained that the characteristic of modified asphalt have a better asphalt characteristic than the Asphalt Pen 60/70. The percentage of gilsonite level that still meet all the modified asphalt requirements is at the percentage of 6.5% with ductility value >140 cm, 336oC flash point, 54.5oC softening point, 1,037 gravity specific, and 41 penetrations. Besides, 7.5% and 8.5% gilsonite levels have better asphalt characteristic than Asphalt Pen 60/70.

Keywords
Road Damage; Asphalt AC 60/70; Modified Asphalt; Gilsonite; Characteristic

Topic
Civil Engineering

Link: https://ifory.id/abstract/6RtVJehHDYnk


Analysis and Testing of DC Motor Control System for Electric Bike
Andriani Parastiwi*, Putri Cepvie Muji Al-Akbary, Hari Kurnia Safitri

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Corresponding Author
Andriani Parastiwi

Institutions
Politeknik Negeri Malang
Indonesia

Abstract
Electric bikes are a means of transportation developed through technological developments and have the advantage of being pollution-free. This electric bike is also very flexible, such as when an electric bike runs out of battery, the rider can paddle the bike while filling the power generated from the drivers stroking power. The proposed electric bike is driven by using a 24V 350W DC motor and VRLA 24V battery as a source of voltage. Input point settings are done by pressing the speed control button in the form of digital data, which is then converted to voltage by the microcontroller. The output of the microcontroller in the form of a PWM becomes input for the motor driver, where the output speed of the motor will be detected by the speed sensor. The automation used is the PI method using the Zeigler Nichols 2 tuning formula. The control method using PI had been analyzed and tested, resulting in Kp = 3.37 and Ki value = 0.73. The electric bike has been tested with different loads. The proposed electric bike was successfully controlled and able to be driven with a minimum speed of 5 km/h and a maximum speed of 20 km/h.

Keywords
electric bike, control system, dc motor, Ziegler Nichols

Topic
Electronics and Microelectronics Engineering

Link: https://ifory.id/abstract/tTUCgdyLHMDF


Analysis of Bridge Structure With Non-Linear Time History Method
Raden Fadli Kamal (a*), Riawan Gunadi (a)

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Corresponding Author
Raden Fadli Kamal

Institutions
Department of Civil Engineering, Politeknik Negeri Bandung, Jalan Gegerkalong Hilir, Bandung 40559, Indonesia

Abstract
The land area of Indonesia has a geographical form of mountains and valleys. This condition is a challenge in the field of infrastructure development and development, so long bridges and high pillars must be built and must be able to withstand the risk of earthquake design. The construction of bridges in Indonesia, especially those built before the last standard applies, namely SNI 2833: 2016, so the bridge must be reviewed on its structure so that its security and handling ascertained. Every ground motion caused by an earthquake recorded so that an earthquake recording in the form of acceleration ground motion obtained. In this study, analysis and evaluation of bridge structures were carried out due to the influence of earthquake loads. The structure tested by the seismic load from seven data scaled ground motion acceleration records. The structural analysis uses a nonlinear time history analysis method. From the results of the non-linear time history analysis, it is proven that by scale adjustment of seven earthquake recordings with target spectrum responses, the scheme of plastic joints and the magnitude of damage caused by each earthquake have a different impact.

Keywords
Nonlinear time history analysis; Acceleration ground motion; Plastic joint

Topic
Civil Engineering

Link: https://ifory.id/abstract/jpHQM9nEmG6z


ANALYSIS OF WEBSITE DEVELOPMENT STRATEGY USING SWOT
Lipur Sugiyanta, Ahmad Maulana Yusup, Yuliatri Sastrawijaya, M Soekardjo

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Corresponding Author
Lipur Sugiyanta

Institutions
Universitas Negeri Jakarta

Abstract
This research aimed to identify internal and external factors in making website development strategies. The case study location was at the Center for the Development of Maritime Transportation Human Resources. The research method uses a qualitative approach that combines qualitative methods and quantitative data input (combined methods), from document analysis, management perceptions, and information system referrals. Qualitative and quantitative data are used as SWOT analysis input materials. The results of the analysis form a strategy formulation by integrating the strengths and weaknesses of internal factors as well as opportunities and threats from external factors.

Keywords
Website, SWOT, Human Resource strategies

Topic
Computer Science and Engineering

Link: https://ifory.id/abstract/x76HmZ9K4pkR


Application Development of Website Content Filling in the Information Technology Department of State Polytechnic of Malang
Dwi Puspitasari (*a), Agung N. Pramudhita (a), Ulla Delfana Rosiani (a), Tiani Khusnul Rahmawati(a)

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Corresponding Author
Agung Nugroho Pramudhita

Institutions
Department of Information Technology,
State Polytechnic of Malang

Abstract
The website is a communication tool that is used as an intermediary to share the latest news. The website of the Information Technology Department - Malang State Polytechnic (JTI-Polinema) is also a means of communication to share the latest activities and information about JTI. From January 2018 to November 2018, the news uploaded is only six content. This is not proportional to the number of activities available at the JTI. This is because there is only one type of user, the admin who can fill the website content. And the admin does not always know the activities in the information technology department. This study aims to develop an application to fill the website content of the Information Technology Department in state polytechnic Malang-s website by adding one more type of user, namely students and also make the interface look better and easy to use. This application allows students to upload articles about departmental activities, competitions, workshops and other information they know. The Development of this application uses Kanban which is one of the lean software development methods (lean method). Based on validation testing this application is able to meet all the main functional requirements. while the usability test results based on usefulness, ease of use, ease to learn and satisfaction shows a high average value of 85%, it can be concluded that this application is acceptable and easy to use

Keywords
website content; kanban; JTI

Topic
Information Systems Technology

Link: https://ifory.id/abstract/p3X2xeKAD7HB


APPLICATION OF THE BACKPROPAGATION METHOD IN IDENTIFICATION OF KIDNEY ORGAN FUNCTIONS THROUGH IRIS IMAGE
Cahya Rahmad, Mungki Astiningrum, Adnin Diba Purnomo

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Corresponding Author
Adnin Diba Purnomo

Institutions
Informatics Engineering, Information Technology, Polytechnic State of Malang

Abstract
In the medical, kidney function from an early age is something that cannot be underestimated. Special attention needed for this. In determining the function of organs can be seen through organs in which can be seen in the iris. Through the iris, a specialist can determine ones organic function asking for some other supporting data. The steps in this study are analyzing needs, designing systems and implementation. In making this program a backpropogation classification was conducted to classify iris with normal, acute and chronic kidney function. A person is identified with normal kidney function if his iris is regularly patterned, while for acute and chronic can be identified if the iris is irregular and has a deeper basin than people who have normal kidney function. The results of this study identified and classified kidney organ function based on the iris to determine normal, acute and chronic kidney.

Keywords
health, kidneys, iris, backpropogation

Topic
Information Systems Technology

Link: https://ifory.id/abstract/MYFTJPdx82pA


Automatically Collect Alumni Data on Social Media
Cahya Rahmad, Rudy Ariyanto, Arie Rachmad Syulistyo

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Corresponding Author
Arie Rachmad Syulistyo

Institutions
Politeknik Negeri Malang

Abstract
Tracer studies are useful for universities, institutes, and academies, as well as scholarship providers such as government, companies, and institution. Tracer studies are used to track alumni which can be used to measure the relevance of objectives, educational processes and curriculum in accordance with current alumni conditions. However, the tracer study has several obstacles in the distribution process to reach out and make alumni willing to spare their time for filling the tracer studies. This study aims to overcome this problem by gathering the information needed from social media such as workplaces and professions. The results of this study will be applied to the Malang State Polytechnic Information Technology Department.

Keywords
tracer studies, media social,

Topic
Information Systems Technology

Link: https://ifory.id/abstract/gUce24Cwqu7x


Autonomous Mobile Soccer Robot Localization using Particle Filter Through Omnivision
Nur Alif Mardiyah, Novendra Setyawan, Mas Nurul Achmadiyah

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Corresponding Author
Novendra Setyaawan

Institutions
Universitas Muhammadiyah Malang, Universitas Muhammadiyah Malang, Politeknik Negeri Malang

Abstract
Where am I? is the primary question, which is the representation of localization, that the mobile soccer robot must be answered. Dead reckoning is most popular method that used in wheeled mobile robot. However, the increasing position error is the main topic of dead reckoning method. Furthermore, In this paper the localization of mobile soccer robot using particle filter through Omnivision is proposed. The sensor model and motion model of particle filter is also discussed, where the sensor model is obtained from segmentation and feature extraction of the soccer field landmark. The experimental result showed that the proposed method estimated the robot position accurately with 15% error.

Keywords
Mobile Robot, Soccer Robot, Localization, Particle Filter

Topic
Mechatronics and Robotics Technologies

Link: https://ifory.id/abstract/HWcg36MbaJyj


Blood Pressure and Body temperature Wireless Monitoring System Using Raspberry PI
Alamsyah (a*), Mery Subito (a), Ardi Amir (a)

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Corresponding Author
Alamsyah Zakaria

Institutions
a) Department of Electrical Engineering, Universitas Tadulako, Jalan Soekarno Hatta Km. 9 Tondo, Palu, 94118, Indonesia
*alamsyah.zakaria[at]untad.ac.id

Abstract
Wireless network technology is currently developing rapidly, especially in the health sector, such as vital sign monitoring. One of the vital sign parameters that are very important to know the condition of the patients circulatory system is blood pressure and body temperature. Examination of blood pressure and body temperature generally uses a sphygmomanometer and thermometer. However, the use of these two tools still has weaknesses in terms of the efficiency of health services because the collection of patient data is still conventional and has not yet developed to the system of sending data wirelessly to the health service unit. This problem becomes to particular concern considering the limited number of medical personnel, the slow pace of health services, especially the results of diagnosing patient diseases, and the administrative costs become to increase. This study aims to assist medical personnel in improving health services, especially in monitoring patients blood pressure and body temperature conditions. The proposed design consists of hardware (MPX5050GP sensor, DS18b20 sensor, LCD, power supply, and laptop) and software (C programming, IDE, MySQL, and Dreamweaver). The results obtained showed that the proposed design worked well with an accuracy level of blood pressure of 97.53% and body temperature of 99.51%.

Keywords
health monitoring; blood pressure; body temperature; raspberry pi

Topic
Electronics and Microelectronics Engineering

Link: https://ifory.id/abstract/4teKknmDjGRB


Characteristic of flame length on spuyer diameter in conventional LPG stoves
Felix Dionisius; Sandhi Firdaus; Muhammad Enzi Maulana; Carudi; Suliono; Badruzzaman

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Corresponding Author
Felix Dionisius

Institutions
Department of Mechanical Engineering
Politeknik Negeri Indramayu

Abstract
Biogas is an alternative fuel in the form of gases derived from dirt or waste. In general, biogas is used as a fuel source for cooking stoves for daily needs. The stove has a special design so it has not been reached by the community, especially in the countryside. One alternative to solve this problem was to modify the spuyer of stove of conventional LPG to be compatible with biogas fuel. The purpose of this paper was to determine the ability of conventional LPG stoves in terms of flame length to the diameter of the spuyer hole on the stove. The variation of the hole was 2; 2.5; 3; and 3.5 mm in diameter. The conventional LPG stove used the Rinai RI-511E type with medium of input control. While the biogas pressure from the digester to the stove was 0.106 MPa. The results showed an increase in flame length from 30.79 mm to 166.95 mm if the spuyer diameter was enlarged from 2 mm to 3.5 mm. So that the increase of flame length could reach 442.22%.

Keywords
biogas, dirt, conventional stove, flame length, spuyer

Topic
Mechanical Engineering

Link: https://ifory.id/abstract/A4UfTGMLNvCW


Characteristic of Porous Asphalt Mixture Using Concrete Waste as Coarse Aggregate and Adding Gilsonite as an Additive
Fenny Novita Meysabed Sianturi (a), Suherman Sulaiman (a)

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Corresponding Author
Fenny Novita Meysabed Sianturi

Institutions
(a)Civil Engineering Department, State Polytechnic of Bandung,Bandung 40012, Indonesia

Abstract
Porous asphalt uses open-graded with a higher percentage of coarse aggregate than fine aggregate. Porous asphalt has low stability. One of the ways to used to improve the stability of porous asphalt mixture is adding gilsonite as an additive, which aims to improve the quality of asphalt. The use of concrete waste as coarse aggregate can also increase the stability of the mixture. In this study will use concrete waste as coarse aggregate and adding gilsonite as an additive. The proportions of regular coarse aggregates and concrete wastes are 0/100, 25/75, 50/50, and 100/0. The additive used is gilsonite, with gilsonite variations of 5.5%, 6.5%, 7.5%, and 8.5%. The goal of this step was to obtain the optimum asphalt content, optimum concrete waste proportion and optimum gilsonite content. Once the optimum asphalt content, optimum concrete waste and optimum gilsonite content are determined, the related Marshall characteristics could be determined. Based on the testing result, optimal asphalt content is 5.13%, the proportion of optimum concrete waste is 100%, and optimum gilsonite content is 8.5%. The use of 100% concrete waste and adding Gilsonite additive at ranges 8.5% improves the Marshall characteristic, particularly its stability.

Keywords
Porous Asphalt; Concrete Waste; Gilsonite; Marshall

Topic
Civil Engineering

Link: https://ifory.id/abstract/kTbhK3wm6J2N


CHARACTERISTICS OF AC-WC ASPHALT MIXTURES WITH VOLCANIC ASH DEPOSITS AS CEMENT SUBSTITUTES IN FILLER
Angga Marditama Sultan Sufanir1), Yackob Astor2), Riza Aulia3)

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Corresponding Author
Riza Aulia

Institutions
POLITEKNIK NEGERI BANDUNG

Abstract
Filler is one of the ingredients functioning as a filler of ribs from a paved mixture.. In a flexible pavement structure, the surface layer is the most upper part of the pavement which acts to hold the wheel load and also as a dense layer of water to protect the required road body, with a minimum thickness of 4 cm. This research was conducted by experimental method aiming to know the highest stability value using volcanic ash deposits as a substitute for cement in the filler.The deposits of volcanic ash used are 0%, 25%, 50%, 75% and 100% of the filler weight. The specimen material consists of several types, namely Marshall, PRD, IP, and GMM specimens. Concrete asphalt mixture is designed on the basis of the Marshall method. The results show that the volcanic deposit content is 0% with a stability value of 1133 kg, 15% with 1151 kg stability value, 30% with 1076 kg stability value, 50% with 1056 kg stability balue, 70% with 1048 kg stability value, 85% with 1047 kg stability value and 100% with 1121 kg stability value. From these variations, the highest stability value is found in 15% volcanic ash deposition with 1151kg.

Keywords
Volcanic ash deposits, Filler, Stability

Topic
Civil Engineering

Link: https://ifory.id/abstract/Q862rCgxtZTq


Characteristics of Cellulose Acetate/Polyethylene Glycol Membrane with the Addition of Graphene Oxide by using Surface Coating Method
Bertiningrum Cintya Devi (a), Bagus Arief Febriansyah (a), Retno Dwi Nyamiati (a), Arnesya Ramadhani (a), Siti Nurkhamidah (a*), Yeni Rahmawati (a), Achmad Chafidz (b)

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Corresponding Author
Siti Nurkhamidah

Institutions
a) Chemical Engineering Department, Faculty of Industrial Technology, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111, Indonesia
b) Department of Chemical Engineering, Universitas Islam Indonesia, Yogyakarta 55584, Indonesia

Abstract
Fabrication of membrane for desalination process with high performance is the objective of this study. The addition of graphene oxide (GO) in cellulose acetate/polyethylene glycol (CA/PEG) with a ratio of 80:20 was prepared by a surface coating method. In this study, the composition of GO was compared, with composition ranging from 0,0025 to 0,0125 wt% to the mass of the solvent. The characteristics of membranes were observed by using Scanning Electron Microscopy (SEM), Fourier-Transformed Infra-Red (FTIR), contact angle analysis and Dynamic Mechanical Analysis (DMA). While its performance was observed by analyzing salt rejection, flux permeate and permeability of the membranes. SEM analysis shows that membrane exhibits asymmetric membrane with sponge-like structure. FTIR results show that the peak area of –OH bonding decreases with the addition of GO. This result is in agreement with the contact angle analysis. The experiment results shows that membrane with the best performance is CA/PEG membrane with the addition of 0,01 wt% GO with salt rejection (%R) of 37%, flux permeate (F) 1356 L/m2.h, and permeability (P) 0,0013 L/m2.h.kPa.

Keywords
desalination, membrane, cellulose acetate, graphene oxide

Topic
Chemical Engineering

Link: https://ifory.id/abstract/p8tm97yRz2fc


Cognitive Artificial Intelligence Application to Cyber Defense
Arwin Datumaya Wahyudi Sumari, Awan Setiawan, Ika Noer Syamsiana

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Corresponding Author
Arwin Datumaya Wahyudi Sumari

Institutions
State Polytechnic of Malang, Malang, East Java, Indonesia

Faculty of Defense Technology, Indonesia Defense University, Sentul, West Java, Indonesia

Abstract
Predicting a cyberattack has been a challenge for various sectors including defense one. In this paper we propose a new method for making a prediction or an estimation the occurence of cyberattacks in terms of the attack type or category and when the attack(s) would be possible to occur. Our method based on Cognitive Artificial Intelligence (CAI) approach called as Knowledge Growing System (KGS). For this purpose, we use simulation data based on a riil data. From the simulation results, we can conclude that CAI is able to deliver an estimation of the occurence of future possible cyberattack.

Keywords
Attack Prediction, Cogntiive Artificial Intelligence, CYber Defense, Knowledge Growing System

Topic
Computer Science and Engineering

Link: https://ifory.id/abstract/EyYf6nTQCKLG


Comparing Method Equivalence Class Partitioning and Boundary Value Analysis with Study Case Add Medicine Module
I Gede Sugita Aryandana, Adhistya Erna Permanasari, Teguh Bharata Adji

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Corresponding Author
I Gede Sugita Aryandana

Institutions
Gadjah Mada University

Abstract
Software Testing is helpful to alleviate the developers- task in improving the system. But in doing software testing, there are problems faced by developers, including information that become a benchmark in the feasibility of software testing. Many factors are used to obtain information or benchmarks. These factors can include line code, program structure, business processes and the time used in conducting trials. A test case is needed to ensure one of the two testing processes. The first is to make sure the data type of the entered data. The method of this process is called Equivalence Class Partitioning (ECP). The second is ensuring the lower bound value, the middle bound value, and the upper limit value of the number of strings as inputs of a system module. The method of this process is called Boundary Value Analysis (BVA). The purpose of this study is to compare the ECP and BVA methods. The expected result of this study is to find out the best method between ECP or BVA. Comparison of calculations using standard matrix testing. This study uses 5 parameters as benchmarks. Based on this study, the ECP method is superior to BVA with 5 parameters used as benchmarks.

Keywords
software testing, equivalence class partitioning, boundary value analysis

Topic
Information Systems Technology

Link: https://ifory.id/abstract/FrwD8gKXqmuv


COMPARISON OF GEOMERTRIC FEATURES AND COLOR SEGMENTATION FOR FACE RECOGNITION USING NAÏVE BAYES CLASSIFIER
Dimas Rossiawan HP S.Kom1, Dr. Eng. Cahya Rahmad, ST ., MT2 , Dr. Eng. Rosa Andrie Asmara, ST ., MT3 ,

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Corresponding Author
Dimas Rossiawan Hendra Putra

Institutions
Politeknik Negeri Malang

Abstract
Human face recognition is one of the challenging topics in the areas of pattern recognition, image processing and computer vision. Before recognizing the human face, its necessary to detect a face then extract the face features.Extraction of facial features using geometric distance on facial features such as eyebrows, eyes, nose and mouth compared with extraction based of skin color on human faces and using Naïve Bayes Classifier as its classification method. This paper presents a comparison of the two methods in terms feature extraction with geometry and skin color for getting accuracy.

Keywords
Face Recognition, Geometric Feature, Color feature, Naïve Bayes Classifier

Topic
Computer Science and Engineering

Link: https://ifory.id/abstract/4PVgZRG9MjpH


Comparison of KNN and J48 Method in Student Academic Performance Classification
Wisnu Agung Prasetyo, Utomo Pujianto

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Corresponding Author
Wisnu Agung Prasetyo

Institutions
State University of Malang

Abstract
Students academic abilities differ from one another. There are students who have high academic abilities, so they can take good lectures. However, it is not uncommon to find students with low academic abilities, thus making it difficult for them to take lectures. Furthermore, among students with both categories there are students with average or normal academic ability level. Students with low academic ability level will leave them in college. If this condition continues, it will make them difficult to pass or complete in every course they take. The worst possibility is it will be very difficult for students to finish their education (graduation) and even drop out in the middle of the study. This is where the special handling of the instructor is really needed for them. In this study a comparison is made between two classification methods, namely Decision Tree J48 and k-Nearest Neighbour (KNN). The classification process is done by the Rapid Miner application. The results obtained are the Decision Tree J48 method is better than the KNN. One of the reason is that Decision Tree J48 does better classification on handling large and nominal dataset.

Keywords
Classification, KNN, J48, Decision Tree, Student

Topic
Computer Science and Engineering

Link: https://ifory.id/abstract/gjVqzAEeT6hD


Comparison of Viola-Jones Haar Cascade Classifier and Histogram of Oriented Gradients (HOG) for Face Detection
imas Rossiawan Hendra Putra S.Kom, Dr. Eng. Cahya Rahmad, ST ., MT, Dr. Eng. Rosa Andrie Asmara, ST., MT

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Corresponding Author
Dimas Rossiawan Hendra Putra

Institutions
Polinema

Abstract
Human face recognition is one of the most challenging topics in the areas of pattern recognition, image processing and computer vision. Before recognizing the human face, it is necessary to detect a face then extract the face features. Many methods have been created and developed in order to perform face detection and two of the most popular methods are Haar Cascade Classifiers and Histogram of Oriented Gradients (HOG), which have a very low rate of false negative. This paper presents a comparison of the two methods in terms of precision, recall, f-1 score and accuracy using confusion matrix

Keywords
Human Face Detection, Haar Cascade Classifier, Histogram of Oriented Gradients (HOG), confusion matrix, accuracy

Topic
Computer Science and Engineering

Link: https://ifory.id/abstract/e4dqGA7fywZ2


Conducted Emission Mitigation in LED Driver by Chaotic Modulation
Mohammad Yanuar Hariyawan, Siska Novita Posma

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Corresponding Author
Mohammad Yanuar Hariyawan

Institutions
Politeknik Caltex Riau

Abstract
Light emitting diode (LED) lamps are become popular in a wide range of applications, due to low power, high efficiency, and low maintenance. To achieve high efficiency in energy transfer in the LED driver, a switched-mode power supply (SMPS) topology is applied. SMPS operates at a constant frequency; it generates significant emission in some of the frequencies through conducted and radiated mechanisms. Several solutions are proposed to mitigate the EMI (electromagnetic interference), such as converter design, component selection, EMI filtering, and spread spectrum techniques. Spread spectrum is a cheap and efficient solution in the conducted emission mitigation. This research performs the conducted emission mitigation is done by modifying the switching on the LED Driver using chaotic signals. The Lorenz equation is selected to produce chaotic signals. The effect of EMI caused by the chaotic signal is analyzed toward the performance of the system, compared with performance when it is modulated by periodic signals. Lorenzs injection signals have reduced distribution over a larger frequency range compared to other injection signals. The average EMI reduction produced by Lorenz signal is the highest compared with other modulated signals of 10.63 dB.

Keywords
SMPS, EMI, conducted emission, chaotic, lorenz

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/cY6nW7GNqjvg


Consumer Price Index Prediction Based On Long Short Term Memory(LSTM) Method
Soffa Zahara, Sugianto, Muhammad Bahril Ilmiddafiq

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Corresponding Author
sofffa zahara

Institutions
Universitas Islam Majapahit

Abstract
Long Short Term Memory(LSTM) is known as optimized Recurrent Neural Network(RNN) architectures that overcome the lack of RNN-s about maintaining long period of memories information. As part of machine learning networks, LSTM also notable as the right choice for time-series prediction. Currently, machine learning is a burning issue in economic world, abundant studies such predicting macroeconomic and microeconomics indicators are emerge. Inflation rate has been used for decision making for central banks also private sector. In Indonesia, CPI(Consumer Price Index) is one of best practice inflation indicators besides Wholesale Price Index and The Gross Domestic Product(GDP). Since CPI data could be used as a direction for next inflation move, we conducted CPI prediction model using Long Short Term Memory Method. The network model input consists of 28 variables of staple price in Surabaya and the output is CPI value. In the interest of predictive accuracy improvement, we used several optimization algorithm i.e. Stochastic Gradient Descent(sgd), Root Mean Square Propagation(RMSProp), Adaptive Gradient(AdaGrad), Adaptive moment(Adam), Adadelta, Nesterov Adam(Nadam) and Adamax. The result indicate that Nesterov Adam has 0.069 MSE-s value, less than other algorithm which indicate the most accurate optimization algorithm to predict CPI value.

Keywords
Long Short Term Memory; Inflation; Consumer Price Index; Deep Learning

Topic
Computer Science and Engineering

Link: https://ifory.id/abstract/tBmf6yDEjMQ7


Corrosion Rate of Aircraft Component Type MD 80 On Fuselage Part Toward pH Effect
Noviana Utami C. S. (1*), and Rochmadi (2)

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Corresponding Author
Noviana Suhartaya

Institutions
(1). Aeronautica Studies Program, Sekolah Tinggi Teknologi Kedirgantaraan, Jl. Parangtritis Km. 4,5 Yogyakarta Special Region, Indonesia.
*noviana.utami[at]sttkd.ac.id

(2). Chemical Engineering Departement, Faculty of Engineering, Universitas Gadjah Mada, Jl. Grafika No. 2 Bulaksumur, 55281, Yogyakarta Special Region, Indonesia.

Abstract
Indonesia as one of the archipelagic countries with 16,055 islands and has been registered with the United Nations through the United Nations Conference on The Standardization of Geographical Names (UNCSGN) and United Nations Groups of Experts on Geographical Names (UNGEGN) certainly requires transportation facilities that can reach all areas of the country. The most efficient and effective mode of transportation to reach all the islands in Indonesia is aircraft. Along with the increasing number of users it will increase the number of requests in the level of comfort and safety of passengers, one of which is in the feasibility of an aircraft. The fuselage as one of the components of an open airplane will easily corrode. Where corrosion in the fuselage is a significant problem for commercial and military aircraft. This study aim to study the corrosion rate of aircraft metal components in the fuselage against pH variations. pH variations in this study were 3.4; 3.8; 4.4; 4.8; 5.4; 5.8; 6.1; 7.5; and 12 at fixed temperature of 30℃. This research method uses the weight loss method of aircraft metal components that are measured once every 1hour. The results of this study conclude that the corrosion rate of MD 80 type metal component in the fuselage section at a fixed temperature of 30℃ in a span of 12 hours showed less significant results. This might be due to the corrosion rate of metal components of airplanes running very slowly, so that in the span of 12 hours still not showing significant results.

Keywords
Corrosion Rate of Aircraft Component, Fuselage, pH

Topic
Mechanical Engineering

Link: https://ifory.id/abstract/4hEbVPkK6eLy


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