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<![CDATA[PERBANDINGAN MODEL PEMBELAJARAN KOOPERATIF TIPE JIGSAW DAN TIPE TWO STAY TWO STRAY TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA PADA MATERI ELASTISITAS ]]>
<![CDATA[Anwar, Miftahul]]>
<![CDATA[ Jurnal Riset Fisika Edukasi dan Sains Vol 5, No 2 (2018): Jurnal Riset Fisika Edukasi dan Sains ]]>
Publisher : <![CDATA[Universitas PGRI Sumatera Barat ]]>
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DOI: 10.22202/jrfes.2018.v5i2.2750
<![CDATA[Penelitian ini bertujuan untuk mengetahui (1) terdapat tidaknya peningkatan yang signifikan kemampuan berpikir kritis siswa menggunakan model kooperatif tipe jigsaw dan tipe two stay two stray dan (2) terdapat tidaknya perbedaan yang signifikan kemampuan berpikir kritis siswa menggunakan model kooperatif tipe jigsaw dan tipe two stay two stray. Penelitian ini menggunakan pendekatan kuantitatif dengan jenis penelitian deskripitif dan komparatif. Desain penelitian menggunakan the static group pretest-posttest design dengan pengambilan sampel menggunakan teknik judgment sampling, sampel yang dipilih yaitu kelas XI-IA 5 dan XI-IA 6. Penelitian ini dilaksanakan di MAN Kota Palangka Raya pada bulan September sampai dengan Oktober 2017. Instrumen yang digunakan adalah kemampuan berpikir kritis siswa. Hasil penelitian diperoleh: (1) terdapat peningkatan yang signifikan kemampuan berpikir kritis siswa dengan model kooperatif tipe jigsaw dan tipe two stay two stray, dan (2) tidak terdapat perbedaan yang signifikan kemampuan berpikir kritis siswa yang diajar dengan model kooperatif tipe jigsaw dan tipe two stay two stray.]]>
<![CDATA[Hybrid fuzzy-PID like optimal control to reduce energy consumption ]]>
<![CDATA[Hari Maghfiroh]]>;
<![CDATA[Chico Hermanu]]>;
<![CDATA[Muhammad Hamka Ibrahim]]>;
<![CDATA[Miftahul Anwar]]>;
<![CDATA[Agus Ramelan]]>
<![CDATA[ TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 18, No 4: August 2020 ]]>
Publisher : <![CDATA[Universitas Ahmad Dahlan ]]>
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DOI: 10.12928/telkomnika.v18i4.14535
<![CDATA[The electric motor is one of the appliances that consume considerable energy. Therefore, the control method which can reduce energy consumption with better performance is needed. The purpose of this research is to minimize the energy consumption of the DC motor with maintaining the performance using Hybrid Fuzzy-PID. The input of the Fuzzy system is the error and power of the system. Where error is correlated with matric Q and power is correlated with matric R. Therefore, adjusting the fuzzy rule on error and power is like adjust matrices Q and R in LQR method. The proposed algorithm can reduce energy consumption. However, system response is slightly decrease shown from ISE (Integral Square Error). The energy reduction average is up to 5.58% while the average of ISE increment is up to 1.89%. The more speed variation in the system, the more energy can be saved by the proposed algorithm. While in terms of settling time, the proposed algorithm has the longest time due to higher computation time in the fuzzy system. This performance can be increased by tuning fuzzy rules. This algorithm offers a solution for a complex system which difficult to be modeled.]]>
<![CDATA[Derivative load voltage and particle swarm optimization to determine optimum sizing and placement of shunt capacitor in improving line losses ]]>
<![CDATA[Mohamed Milad Baiek]]>;
<![CDATA[Ahmad E. Esmaio]]>;
<![CDATA[Muhammad Nizam]]>;
<![CDATA[Miftahul Anwar]]>;
<![CDATA[Hasan M.S. Atia]]>
<![CDATA[ Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 7, No 2 (2016) ]]>
Publisher : <![CDATA[National Research and Innovation Agency ]]>
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DOI: 10.14203/j.mev.2016.v7.67-76
<![CDATA[The purpose of this research is to study optimal size and placement of shunt capacitor in order to minimize line loss. Derivative load bus voltage was calculated to determine the sensitive load buses which further being optimum with the placement of shunt capacitor. Particle swarm optimization (PSO) was demonstrated on the IEEE 14 bus power system to find optimum size of shunt capacitor in reducing line loss. The objective function was applied to determine the proper placement of capacitor and get satisfied solutions towards constraints. The simulation was run over Matlab under two scenarios namely base case and increasing 100% load. Derivative load bus voltage was simulated to determine the most sensitive load bus. PSO was carried out to determine the optimum sizing of shunt capacitor at the most sensitive bus. The results have been determined that the most sensitive bus was bus number 14 for the base case and increasing 100% load. The optimum sizing was 8.17 Mvar for the base case and 23.98 Mvar for increasing load about 100%. Line losses were able to reduce approximately 0.98% for the base case and increasing 100% load reduced about 3.16%. The proposed method was also proven as a better result compared with harmony search algorithm (HSA) method. HSA method recorded loss reduction ratio about 0.44% for the base case and 2.67% when the load was increased by 100% while PSO calculated loss reduction ratio about 1.12% and 4.02% for the base case and increasing 100% load respectively. The result of this study will support the previous study and it is concluded that PSO was successfully able to solve some engineering problems as well as to find a solution in determining shunt capacitor sizing on the power system simply and accurately compared with other evolutionary optimization methods.]]>
<![CDATA[EFFECTS OF HEATING TEMPERATURE AND BINDER IN THE PRODUCTION OF CHAR-BASED ELECTRICAL CONDUCTOR ]]>
<![CDATA[Teguh Endah Saraswati]]>;
<![CDATA[Achmad Bahrudin]]>;
<![CDATA[Miftahul Anwar]]>
<![CDATA[ ALCHEMY Jurnal Penelitian Kimia Vol 12, No 2 (2016): September ]]>
Publisher : <![CDATA[UNIVERSITAS SEBELAS MARET (UNS) ]]>
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DOI: 10.20961/alchemy.12.2.708.167-178
<![CDATA[Graphite as one alotrof carbon is widely used as an electrode material for a good electrical conductivity properties. Charcoal as a carbon source material was found very abundant in nature. Charcoal has the potential application for electrode material in energy storage such as in a battery or supercapacitor. For this purpose, charcoal amorphous structure needs to be converted into a graphite structure so that it has better electrical conductivity property. This research aims to prepare the electrical conductor material derived from wood charcoal that could potentially be used as an electrode. Preparation was made by mixing charcoal powder with asphalt binder with a weight ratio of 3:1, 4:1, 5:1 and followed by heat treatment under an inert atmosphere at temperature of 600°C, 800°C and 1000°C. Charcoal material which was originally to be an electrical insulator has been successfully converted into an electrical conductor. The achievement of the optimum temperature to produce electrodes with the smallest electrical resistance is then applied to the manufacture of carbon electrodes by heating a mixture of charcoal and fructose binder in a weight ratio of 1:1 (w/w). The results showed electrodes with a mixture of charcoal powder and fructose with heat treatment at 1000°C has the better electrical conductivity among other variations.]]>
<![CDATA[PROTOTYPE SISTEM POMPA AIR TENAGA SURYA UNTUK MENINGKATKAN PRODUKTIVITAS HASIL PERTANIAN ]]>
<![CDATA[Chico Hermanu Brillianto Apribowo]]>;
<![CDATA[Teguh Endah S]]>;
<![CDATA[Miftahul Anwar]]>
<![CDATA[ Jurnal Abdimas Vol 21, No 2 (2017): December 2017 ]]>
Publisher : <![CDATA[Universitas Negeri Semarang ]]>
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DOI: 10.15294/abdimas.v21i2.12336
<![CDATA[Indonesia merupakan negara agraris dengan daerah pertanian yang cukup luas. Kesuburan tanah dan kebutuhan akan air menjadi prioritas utama. Untuk mendukung hal ini dibutuhkan sistem irigasi yang baik saat terjadi musim kemarau. Pengunaan diesel/pompa air dengan BBM untuk sistem irigasi pertanian sangatlah tidak efektif dan mahal. Sistem pompa air dengan tenaga surya merupakan salah satu alternatif solusi yang efektif, hemat, dan efisien untuk menjaga sistem irigasi pertanian berjalan dengan baik saat musim kemarau. Tujuan akan pengabdian ini adalah untuk memberikan wawasan dan pengetahuan praktis akan pembuatan dan instalasi Sistem Pompa Air Tenga Surya (SPATS) serta memberikan inovasi baru berupa pemanfaatan energi terbarukan dalam membantu sistem irigasi pertanian. Dengan demikian diharapkan masyarakat mendapatkan manfaat berupa peningkatan produktivitas hasil pertanian dan membatu pemerintah dalam memwujudkan swasembada pangan nasional.]]>
<![CDATA[Smart Home System With Battery Backup and Internet of Things ]]>
<![CDATA[Hari Maghfiroh]]>;
<![CDATA[Joko Slamet Saputro]]>;
<![CDATA[Berlian Shanaza Andiany]]>;
<![CDATA[Chico Hermanu]]>;
<![CDATA[Miftahul Anwar]]>;
<![CDATA[Muhammad Nizam]]>;
<![CDATA[Alfian Ma’arif]]>
<![CDATA[ Journal of Applied Engineering and Technological Science (JAETS) Vol. 5 No. 1 (2023): Journal of Applied Engineering and Technological Science (JAETS) ]]>
Publisher : <![CDATA[Yayasan Riset dan Pengembangan Intelektual (YRPI) ]]>
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DOI: 10.37385/jaets.v5i1.1969
<![CDATA[This research enhances Smart Home Systems by integrating an Automatic Transfer Switch (ATS) for seamless power source switching between the grid and a backup battery, ensuring uninterrupted operation during power disruptions. An Automatic Battery Charging (ABC) system optimizes battery charging based on its condition, improving energy storage and efficiency. The system provides on-site electrical equipment control and sensor data access via a Human Machine Interface (HMI). Remote monitoring and control through the Blynk app offer convenience. Additionally, an energy consumption estimation feature allows users to estimate billing costs, with the Battery State of Charge (SoC) indicating the remaining battery capacity. Hardware testing showed the system's reliability with a 2-4 second ATS response and ±2-second ABC response. This research offers homeowners reliable power continuity and energy optimization. It contributes to IoT-based smart home systems, demonstrating ATS and ABC effectiveness, advancing both theory and practice for modern smart living.]]>
<![CDATA[REGENERATIVE BRAKING MONITORING SYSTEM OF ELECTRIC VEHICLE ]]>
<![CDATA[Jusuf Abimas Pratama]]>;
<![CDATA[Miftahul Anwar]]>;
<![CDATA[Sifaus Wulaning Arsri]]>;
<![CDATA[Ferdiansyah Ashil Farisi]]>;
<![CDATA[Muhammad Nizam]]>
<![CDATA[ Journal of Electrical, Electronic, Information, and Communication Technology Vol 1, No 1 (2019): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY ]]>
Publisher : <![CDATA[Universitas Sebelas Maret (UNS) ]]>
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DOI: 10.20961/jeeict.v1i1.34474
<![CDATA[Electric vehicles is in rapid development. The energy commonly used as a driving force for electric vehicles comes from batteries. The development of electric vehicle technology is currently concentrated on efforts to charge the battery used by utilizing the power wasted when braking electrically. The gearbox and final drive are installed as a mechanical transmission system for electric vehicles to increase the torque of the BLDC motor as the main driving force of the vehicle. The regenerative process occurs when the Kelly-KBL motor controller electric braking feature is activated. For this reason, Arduino Mega and LabVIEW software are used to observe the current and voltage of lead acid batteries with voltage 48 V and capacity 225 Ah (C20). In addition, a 2 kW BLDC motor RPM was also observed in the electric braking monitoring system. From the results of monitoring and data collection, the vehicle traveled a distance of 36.06 m in 68 s time intervals with an average speed of 16.8 m / s. The average torque value when electric braking on a BLDC motor supplies 154 Nm, while the average torque of the vehicle is 996.99 Nm. The average regenerative power of the wheels is 17.07 kW, while the average mechanical power of the wheels is 13.67 kW. Coulometric state of charge (SOC) shows an increase in battery capacity of 4.27% and 99.97% voltage SOC at the beginning of the activation of the electric brake pedal. Maximum battery power movement when charging, 2.25 kW is caused by the activation of the electric brake pedal. Whereas when using a maximum of 1.52 kW. The application of electric braking has a power consumption efficiency of 0.042%. and charging power charging 18.97%.]]>
<![CDATA[Plasma Characteristics of Under-water Arc Discharge in Nanoparticle Fabrication ]]>
<![CDATA[Athaya Cantia Putri]]>;
<![CDATA[Miftahul Anwar]]>;
<![CDATA[Irwan Iftadi]]>;
<![CDATA[Agus Ramelan]]>;
<![CDATA[Feri Adrianto]]>;
<![CDATA[Teguh Endah Saraswati]]>
<![CDATA[ Journal of Electrical, Electronic, Information, and Communication Technology Vol 4, No 1 (2022): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY ]]>
Publisher : <![CDATA[Universitas Sebelas Maret (UNS) ]]>
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DOI: 10.20961/jeeict.4.1.61081
<![CDATA[Synthetic nanoparticles are the process of making particles with a size of less than 100 nm and changing the properties of the material so that it can be improved to improve the usability of new products. One method that can be used is the arc discharge method in water, which is a synthetic method of nanoparticles, which is very simple because it does not require complicated equipment. This study uses graphene as an electrode, which is then immersed in water and mounted horizontally. Current and voltage monitoring is carried out during the arc discharge process using a Hall-based current sensor and the voltage is measured directly between the two electrodes. Variations in input current of 10A, 40A, 70A, and 100A affect the arc formed, current and voltage, and ionization energy. Monitoring with OES is also carried out to determine the shape of the plasma, and the wavelength when the arc occurs. The results obtained that the current has more effective and optimal results in synthesizing nanoparticles.]]>
<![CDATA[Analysis of Triple Quantum Dots Single Electron Transistor (TQD-SET) for Various Configuration ]]>
<![CDATA[Stephanus Hanurjaya]]>;
<![CDATA[Miftahul Anwar]]>;
<![CDATA[Meiyanto Eko Sulistyo]]>;
<![CDATA[Irwan Iftadi]]>;
<![CDATA[Subuh Pramono]]>
<![CDATA[ Journal of Electrical, Electronic, Information, and Communication Technology Vol 2, No 2 (2020): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY ]]>
Publisher : <![CDATA[Universitas Sebelas Maret (UNS) ]]>
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DOI: 10.20961/jeeict.2.2.44840
<![CDATA[Single electron transistor (SET) has high potential for the development of quantum computing technologies in order to provide low power consumption electronics. For that purpose, many studies have been conducted to develop SET using dopants as quantum dots (QD). The working principle of SET basically is a single electron tunneling one by one through tunnel junction based on the coulomb blockade effect. This research will simulate various configurations of triple quantum dots single electron transistors (TQD-SET) using SIMON 2.0 with an experimental approach of MOSFET with dopants QD. The configurations used are series, parallel, and triangle configuration. The mutual capacitance (Cm), tunnel junctions (TJ), and temperature values of TQD-SET configurations are varied. The I-V characteristics are observed and analyzed for typical source-drain voltage (Vsd). it is found that the TQD series requires larger Vsd than parallel or triangular TQDs. On the other hands, the current in parallel TQD tends to be stable even though Cm is changed, and the current in the TQD triangle is strongly influenced by the Cm. By comparing these three configurations, it is observed that the tunnelling rate is higher for parallel TQD due to higher probability current moves through three dots by applying Vds.]]>
<![CDATA[Adaptive Cruise Control based Motor Acceleration Control using Fuzzy Logic Methods ]]>
<![CDATA[Putra Maulana Yusuf]]>;
<![CDATA[Joko Hariyono]]>;
<![CDATA[Joko Slamet Saputro]]>;
<![CDATA[Agus Ramelan]]>;
<![CDATA[Feri Adriyanto]]>;
<![CDATA[Miftahul Anwar]]>
<![CDATA[ Journal of Electrical, Electronic, Information, and Communication Technology Vol 5, No 2 (2023): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY ]]>
Publisher : <![CDATA[Universitas Sebelas Maret (UNS) ]]>
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DOI: 10.20961/jeeict.5.2.71714
<![CDATA[The paper presents a method for adaptive cruise control based motor acceleration control. On the long-distance driving, using vehicles that have a risk for accidents. One of these accidents is collisions between vehicles in front of them which can cause multiple collisions. With the help of the ACC feature, it can reduce the occurrence of these accidents which are caused by the driver's fatigue and weather conditions on long-distance trips. By using the Fuzzy adaptive cruise control system, it is successful in adjusting the acceleration set on the fuzzy system, and with the help of the GUI it can make it easier for the operator to set the appropriate acceleration.]]>
