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All Journal Jurnal Biologi Tropis Saintifik : Jurnal Matematika, Sains, dan Pembelajarannya PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram
Bardan Bulaka
Universitas Sembilanbelas November Kolaka
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Mathematics Physics Other

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RANCANG BANGUN ALAT PEMANTAU PASANG SURUT AIR LAUT MELALUI JARINGAN INTERNET UNTUK KAWASAN TELUK KENDARI Bardan Bulaka; Hendro Hendro
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (637.899 KB) | DOI: 10.21009/0305020106

Abstract

English version of the abstract be written here. Has created a system monitor water levels that can be used to monitor the phenomenon of the tide in the Gulf of Kendari by using the Internet network. Hardware or device used consisted of an ultrasonic sensor is used to measure the distance of the surface of the water, the microcontroller Arduino Uno that serves to process data readings from ultrasonic sensors and WiFi module ESP8266 ESP-01 which serves to connect the microcontroller to the Internet network (data server) , The hardware of the system is tested on the water surface inside a container penampukan water, where the water level inside the container is assumed as the sea level. Tests conducted to determine the feasibility of such a device before it is applied in the area of ​​Teluk Kendari. Data from the measurement of the water level can be accessed by anyone with a browser using either a computer (PC), laptop, or smartphone connected to the Internet network. Applications used to monitor water levels through the Internet is ThingSpeak contained on the website www.thingspeak.com. Keywords: Monitors, Sensors, Microcontroller, Internet, ThingSpeak.
Coconut Oil Heat Capacity Bardan Bulaka; Syarifuddin Syarifuddin; Eko Harianto
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 9, No 1: June 2021
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (539.541 KB) | DOI: 10.33394/j-ps.v9i1.3947

Abstract

Heat is energy transferred between a system and its surroundings due to the temperature difference that exists between them. Phase changes of coconut oil can be seen at temperatures between 20°C–100°C. To calculate the incoming heat using the equation Q = m.c.ΔT. Where Q in the experiment is calculated by the equation Q = V.I.t. So to calculate the specific heat of heat (c) = Q/(m.ΔT). The heat capacity is obtained from the equation C = m.c. The method in this practicum is used heater with AC current. The heater used has a voltage of 220 Volts, with a power of 350 Volts. Because the heating voltage is too large, a variable ac (variac) is used to lower the voltage. The voltage used is 20 volts. The material used is coconut oil which is labeled "Barco". The heater directly interacts with the oil. So that the oil can be directly heated homogeneously. Then it is bounded by adiabatic walls. The temperature in this study was controlled, ranging from 150C-500C. the heat of fusion of coconut oil at 28°C. After that, the liquid phase is above 28 °C to 63 °C. This is in accordance with the oil label which states that the melting temperature (melting) is around 26 °C. This difference is due to a leak or air entering the adiabatic wall.
Rancang Bangun Sistem Pengukuran Alkohol dan Suhu Berbasis Mikrokontroler Arduino Uno dalam Pembuatan Etanol dari Tepung Sagu Surya Ningsih; Bardan Bulaka
SAINTIFIK Vol 9 No 2 (2023): Saintifik: Jurnal Matematika, Sains, dan Pembelajarannya
Publisher : Universitas Sulawesi Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/saintifik.v9i2.458

Abstract

Dalam proses pembuatan etanol terdapat parameter fisis yang penting untuk diukur yakni suhu dan kadar alcohol. Pengukuran ini bertujuan untuk mengukur besaran fisis menjadi besaran yang terukur. Tujuan dari penelitian ini adalah untuk membuat alat ukur suhu dan kadar alcohol pada pembuatan etanol dari tepung sagu. Kegiatan ini dimulai dari rancang bangun alat ukur dengan menggunakan dua buah sensor yakni LM35 untuk sensor suhu dan MQ3 untuk sensor kadar alcohol. Kemudian pembacaan sensor ini dihubungkan ke system akusisi data menggunakan Mikrokontroler Arduino Uno dan ditampilkan pada LCD. Alat ini kemudian diuji, sebelum diuji pada bahan terlebih dahulu dilakukakan kalibrasi. Adapun kalibrasi dilakukan dua tahap. Tahap kalibrasi yang pertama adalah membandingkan hasil pembacaan nilai suhu oleh sensor LM35 dengan alat pengukur suhu digital. Tahap kalibrasi kedua adalah membandingkan hasil pembacaan nilai presentase kadar alcohol oleh sensor MQ-3 dengan alat pengukur lain yaitu alcoholmeter. Dari hasil pengukuran suhu didadapatkan selisih rata-rata 0,4 0C sedangkan untuk pengukuran kadar alcohol didapatkan selisih rata-rata 0,86%. Dalam hal ini dapat disimpulkan bahwa sensor LM35 dapat mendeteksi perubahan suhu dengan akurat dan sensor MQ-3 dapat digunakan untuk mendeteksi perubahan kadar alcohol pada cairan.
Evaluation of the Mangrove Ecosystem Conditions in Wundulako Sub-District and Their Consequences on Insect Diversity Ramad Arya Fitra; Bardan Bulaka; Reski Hidayanti
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5592

Abstract

Insect diversity is believed to serve as one of the bioindicators for the condition of an ecosystem.In this investigation, data pertaining to the density of mangroves were collected by extracting samples from designated stations. This was achieved by utilizing the transect line and quadrat approach, known as the Transect Line Plot method. The data were gathered through observation plots measuring 10x10 m2, aiming to document the mangrove vegetation categorized as trees.At each station, any insect samples identified were subjected to characterization based on their morphological traits, utilizing an insect identification guide.Based on the research results, there are six mangrove species among themfindings obtained through field research at four observation station sites unveiled the existence of six distinct variations of mangrove forest types within the coastal region of Wundulako District. Among these, four types belonged to the Rhizophoraceae family, specifically Rhizophora apiculata, Rhizophora Mucronata, Ceriopstagal, and Bruguiera Gymnorrhiza, . Additionally, there was one species from the Combretaceae family, Lumnitzeraand Racemosa, and another from the Sonneratiaceae family, Sonneratia Alba. Generally, the density of the mangrove ecosystem was determined to be ranging from moderate to dense.Furthermore, a scrutiny of the insect diversity index yielded values of 1.23 for Station I, 1.39 for Station II, 1.36 for station III, and 1.69 for sStation IV. Based on the findings derived from the research, it is plausible to conclude that the condition of the mangrove ecosystem in Wundulako District across the four stations varies from limited to extensive. Additionally, the outcomes from the insect diversity index suggest a relatively reduced level of insect diversity.
Co-Authors Eko Harianto Hendro Hendro Ramad Arya Fitra Reski Hidayanti Surya Ningsih Syarifuddin Syarifuddin