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MODEL MEDIA PROMOSI DESA WISATA BERBASIS KEARIFAN LOKAL KAMPUNG ADAT CIREUNDEU Widiaty, Isma; ., Ana; Abdullah, Ade Gafar
ABMAS Vol 16, No 1 (2016): Jurnal Abmas
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (361.005 KB) | DOI: 10.17509/abmas.v16i1.38703

Abstract

Internet of things and fuzzy logic for smart street lighting prototypes Mindit Eriyadi; Ade Gafar Abdullah; Hasbullah Hasbullah; Sandy Bhawana Mulia
IAES International Journal of Artificial Intelligence (IJ-AI) Vol 10, No 3: September 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijai.v10.i3.pp528-535

Abstract

Internet of things (IoT) and fuzzy logic are very useful in increasing the efficiency and effectiveness of a system; this study applies both to the street lighting systems. The prototype of a street lighting control and monitoring system has been completed. The status of lights that are on or off and the value of the light intensity can be monitored by using IoT. The intensity of the light is fuzzy controlled by utilizing the presence of vehicles and pedestrians around the lights. The prototype is made with a scale against real conditions. Data is processed and transmitted using a microcontroller and Wi-Fi on the IoT module. Mobile applications have been used on smartphone interfaces to monitor and control lamps wherever they are connected to the Internet. Changes in the status of lights to turn on or off are done by the relay module. The fuzzy light intensity control system uses sensors and microcontrollers by utilizing the presence of vehicles and pedestrians around the lights. Performance evaluation has been carried out on a miniature street lighting with the results of monitoring and control following its function. An analysis of the resulting energy savings has been demonstrated.
Low-cost and Portable Process Control Laboratory Kit Ade Gafar Abdullah; Dadang Lukman Hakim; Muhammad Afif Auliya; Asep Bayu Dani Nandiyanto; Lala Septem Riza
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 16, No 1: February 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v16i1.6888

Abstract

The purpose of this study was to demonstrate a new design of low-cost and portable laboratory kit that is prospective for supporting teaching and learning on the automation process. The kit consists of the water tank filling system (sizes of 50 mL; as a model for describing reallistic tank in the plant) equipped with a programmable logic controller (PLC) integrated with SCADA system, human machine interface (HMI) monitor, reservoir, temperature, water level sensors, mixer, and heater. To be adaptable in any types of classroom, the kit was placed on the portable table (length x width x height of 100 x 50 x 150 cm). To approach the industrial tank system in industry, the tank was designed to be mixed and connected to other tank, and the temperature and water volumetric (water level) was controllable. To examine the impact of the designed kit on the improvement of teaching and learning process, the problem based learning (PBL) approach was also conducted in class. The economic analysis result showed that the present kit is inexpensive and portable, compared to other commercially available kits/devices. The PBL results showed that the kit is simple and to give better illustrations for students to comprehend the process control system in the realistic application in industry. Further developments of this kit is potentially implemented as an experimental tool for undergraduate students.
A Simple, Rapid Analysis, Portable, Low-cost, and Arduino-based Spectrophotometer with White LED as a Light Source for Analyzing Solution Concentration Asep Bayu Dani Nandiyanto; Rena Zaen; Rosi Oktiani; Ade Gafar Abdullah; Lala Septem Riza
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 16, No 2: April 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v16i2.7159

Abstract

The purpose of this study was to demonstrate a simple, rapid analysis, portable, and inexpensive spectrophotometer. Different from other spectrophotometers, the present instrument consisted of a single white light-emmiting-diode (LED) as a light source, a light sensor, and arduino electronic card as an acquisition system. To maintain a constant light intensity, a common white-color LED emitting a 450-620 nm continous spectrum was employed. Software was written in C++ to control photometer through a USB interface and for data acquistion to the computer. The instrument is designed to be simple and compacted with sizes of 200 x 130 x 150 mm for length, width, and height, respectively. The analysis of the total cost isabout less than 500 USD, while commercially available offers price of more than 10,000 USD. Thus, this makes the present instrument feasible for teaching support media in developing countries. The effectiveness of the present spectrophotometer for analyzing solution concentration (i.e. curcumin) was also demonstrated. Interestingly, the present spectrophotometer is able to measure the concentration of curcumin precisely with an accuracy of more than 90%. Different from commercially available standard UV-visible spectrophotometers that have limitations in the analysis of concentration of less than 50 ppm, the present system can measure the concentration with no limitation since the measurement is based on the LED light being penetrated.
ELECTRANS (Full Version) Ade Gafar Abdullah
ELECTRANS Vol 14, No 1 (2016): Volume 14, Nomor 1, Tahun 2016
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Jurnal ELECTRANS merupakan jurnal ilmiah yang memuat hasil-hasil penelitian dalam bidang teknik elektro, elektronika, komputer dan informatika. Jurnal ini terbit secara berkala sebanyak dua kali dalam setahun (bulan Maret dan September). 
Designing of Environmental Physics Course Instruments about Ocean Wave Energy to Enhance Students' Creative Thinking Skills Muhammad Satriawan; Liliasari Liliasari; Wawan Setiawan; Ade Gafar Abdullah
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 11 No. 1 (2021)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v11n1.p1-15

Abstract

There are various factors that become obstacles to the development of renewable energy technology, which are the low knowledge of renewable energy and the low level 21st century skills of people. Therefore, it is very necessary to design a learning that is able to increase knowledge about renewable energy and improve 21st century skills simultaneously. This study aimed to design programs of environmental physics lectures about OWC as a renewable energy source. This research was a developmental research with stages of analysis, design, and development. The products in this study were a test instruments to measure creative thinking skills, OWC converters prototype and project-based lecture programs implementation plans that are oriented towards providing creative thinking skills through a combination of lectures in the classroom, laboratory, and marine environment. All products were validated by 5 experts. In addition beside validation of experts, the creative thinking test instrument was tested on 17 students who had taken environmental physics lectures, while the prototype was tested by a marine engineering laboratory at a university in Bandung. Experts’ validity data were analyzed using content validity ratio, while the test instrument data were calculated for reliability, validity, discrimination and difficulty levels. Based on the results of expert validation, all products are feasible to be implemented. Based on the test results that the prototype developed functions well, while for the test instrument of 10 questions developed only 8 questions were eligible to be used. All of product that produced can be used as a reference and reference for lecturers or teachers who develop learning about renewable energy as well as equip students with creative thinking skills.
Redesigning Public Street Lighting Using Photometric Method Ade Gafar Abdullah; Muhammad Aziz; Muhammad Nur Huda
Indonesian Journal of Computing, Engineering and Design (IJoCED) Vol 3 No 1 (2021): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v3i1.153

Abstract

Street lighting with LED (Light-Emitting Diode) technology is currently the main option of public lighting in almost every country. Even though LED technology is a less costly selection, there needs to be well planned in an attempt of acquiring high efficiency. The photometric approach was tested in this study in order to redesign the existing approach used in street lighting in Indonesia. The redesigning process was carried out using software namely DIALux on two different schemes; one with homogeneous luminaire and the other one with the non-homogeneous luminaire. The results of this study showed that the most significant factors in redesigning street lighting covered types of the lamp, pole distance, pole height, and proper lighting angles which could affect the illumination value on both the main road and the sidewalks. In addition, it has also been proven that a homogeneous approach using LED lamp lighting promoted uniformity as well as optimum illumination.
Analysis of the Science Concept Understanding of Inclusive Students in Junior High Schools Hestiningtyas Yuli Pratiwi; Kristanti Diana Malo; Indriyani Rachman; Ida Hamidah; Anna Permanasari; Ade Gafar Abdullah; Muhammad Nur Hudha
SEJ (Science Education Journal) Vol 4 No 1 (2020): May
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/sej.v4i1.833

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This research focuses on discussing the learning and understanding of the concepts of science in inclusive students at one of the State Junior High Schools in Malang with questionnaire methods, interviews, and documentation. The subjects used in this research were 2 source teachers, 2 special companion teachers (GPK), 25 regular students from class VIIIB, and 14 students with special needs. The learning system, especially with the topic of global warming in the inclusive school, is not yet fully optimal because the learning process is dominated by teachers using the lecture method. The level of understanding of the concept of regular students falls into the good category up to the cognitive domain C4. Meanwhile, the average student with special needs is better able to understand the concept by giving examples in the cognitive domain of C2. The low level of understanding of students' concepts, especially students with special needs, is due to the learning system which is more dominated by teachers in the classroom, the unavailability of learning media for students with special needs in understanding each concept and the number of special companion teachers (GPK) for students who need them which is still limited.
Reconstruction of vocational high school physics instructional materials Ira Herli Khoeriah; Ade Gafar Abdullah; Budi Mulyanti
Momentum: Physics Education Journal Vol 4 No 2 (2020)
Publisher : Universitas PGRI Kanjuruhan Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/mpej.v4i2.4572

Abstract

Instructional materials for static electricity and dynamic electricity for Physics subjects in Vocational High Schools are not in accordance with the scope of the material contained in the Electronics Department: (1) The purpose of this study is to provide an overview of the teaching materials of static electricity and dynamic electricity in Physics in the Electronics Department; (2) Qualitative Content Analysis Method was used to explore the contents of seven book titles with different publishers and is strengthened through inter-views with Physics teachers in the Department of Electronics. In the process of analyzing the content of the contents of this textbook used Atlas.ti computer software; (3) The findings show that the content in the Vocational High School Physics books pub-lished by several publishers does not yet have specific conformity with the Department of Electronics; (4) conclusion. There are code relating to the content content, researchers only specify it into 39 code titles in the VHS Physics Textbook. from qualitative analysis. The level of compatibility of the content of the material with the 2013 Revised Curriculum was 42.86%, the availability of pictures was 75%, examples of questions from the equa-tions of each series were 85.71%, the suitability of the practicum with the Electrical Clump was 14.29%. content conformity with the Revised 2013 Curriculum and electro majors has a slightly low percentage of 42.86%. So in this study, the authors reconstruct VHS Physics teaching materials for the Electrical Department and also make VHS Physics teaching materials for the Electrical Clump.
Students’ acceptance of mobile-based assessment Nur Adillawati Kosim Saputri; Ade Gafar Abdullah; Dadang Lukman Hakim
Momentum: Physics Education Journal Vol 5 No 1 (2021)
Publisher : Universitas PGRI Kanjuruhan Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/mpej.v5i1.4575

Abstract

The effective development of a Mobile-Based Assessment (MBA) depends on students’ acceptance. The aim of this paper was to examine the determinant factor of students’ behavioral intention to use mobile-based assessment. Data were collected from 105 second grade students of a vocational high school through an online survey questionnaire. Partial Least Squares (PLS) was used to test the measurement and the structural model. Results showed Perceived Ease of Use as the strongest direct predictor of Behavioral Intention to Use, followed by Perceived Usefulness. Content and Mobile Self-Efficacy only has an indirect effect. These four variables explain 51.3 percent of the variance of Behavioral Intention to Use.