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All Journal Proceeding of the Electrical Engineering Computer Science and Informatics JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Turbo : Jurnal Program Studi Teknik Mesin Sinar Sang Surya: Jurnal Pusat Pengabdian kepada Masyarakat ARMATUR : Artikel Teknik Mesin dan Manufaktur Jurnal Citizenship Virtues Jurnal Pendidikan Agama Islam Indonesia (JPAII) JTTT JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah)
Nurlaila Rajabiah
Universitas Muhammadiyah Metro
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Physics Social Sciences Transportation

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Kajian eksperimental pemakaian Hidrokarbon Musicool 22 sebagai pengganti R 22 untuk mesin pengatur udara AC split terhadap konsumsi listrik Wahyu Setiawan; Lukito Dwi Yuono; Kemas Ridhuan; Nurlaila Rajabiah
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 3 No 1 (2022): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v3i1.1938

Abstract

The use of synthetic refrigerant R22 has been banned by the government which can cause damage to the ozone layer causing global warming effects. temperature (ΔT°C) of the evaporator during the test time at the time of the study. The method used in this research is to vary the refrigerant R 22 and Musicool 22 with a pressure variation of 60,70,80 Psi, the size of the room studied is 3x4x2,5 m and Split AC Changhong, LG, and Panasonic with 1 PK power. Research results it can be seen that each brand of Split AC has a different effect of electricity consumption, the lowest and highest electricity consumption at a pressure of 60 and 80 Psi. Musicool 22 refrigerant is more energy efficient than R22. It can be seen that each brand of Split AC has the effect of the temperature difference (ΔT°C) of the evaporator, which differs the highest at a pressure of 60 and 80 Psi. Musicool 22 refrigerant is more suitable for LG and Changhong brands.
Analisis DSSC menggunakan mulberry powder dan buah naga sebagai fotosensitizer Nurlaila Rajabiah; Dwi Irawan
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 2 (2022): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i2.2348

Abstract

Fabrication prototype of DSSC (Dye-Sensitized Solar Cell) using mulberry powder from mulberry leaf extract (Morus Alba L.) and dragon fruit (Hylocereus Polyrhizus) as photosensitizers has been carried out. The test was carried out by testing the I-V characteristics at a light distance of 10, 20 and 30 cm from the material sample. The test results show that the chlorophyll of mulberry and dragon fruit is capable of producing an electric current which is a characteristic of the resistance of organic materials. In DSSC with mulberry powder dye, the greatest power was found at a halogen lamp distance of 10 cm with a power of 257.77 mW. Whereas in DSSC with red dragon fruit flesh dye, the greatest power was obtained at 162.35 mW with the halogen lamp distance from the DSSC device being 10 cm. DSSC testing using mulberry powder and dragon fruit showed that the power produced on mulberry powder leaves was higher than dragon fruit. The results of the I-V characteristic test on the DSSC device show a linear graph.
Pengaruh variasi temperatur dan holding time pada proses annealing leaf spring dumb truck bekas terhadap nilai kekerasan Eko Nugroho; Nurlaila Rajabiah; Tri Cahyo Wahyudi; Juda Inai
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 1 (2023): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2589

Abstract

Leaf spring is a flat plate component that is clamped together to obtain product efficiency using metal materials, sometimes requiring high hardness and wear resistance. The steel working process is highly dependent on the heat treatment process and the cooling media used to obtain good product quality. The purpose of this study was to determine the effect of variations in temperature and holding time in the process of annealing used leaf springs and trucks on hardness values. This test has been carried out with each variation, namely, temperature 450oC, 550oC, 650oC and held for 30, 60, and 90 minutes as well as the cooling process using air in the heating furnace room. Based on the data obtained, the influence of temperature media and holding time in the Annealing process of used leaf spring dumb trucks has a low hardness value at a temperature of 650°C with a holding time of 30 minutes, 60 minutes and 90 minutes, the lowest hardness value is at 90 minutes, namely 7.7 While the HRC temperature of 550°C and holding time of 90 minutes reaches 26.9HRC, the hardness value is higher and the same as 450°C with holding time of 90 minutes which reaches 30.8HRC. The influence of temperature and holding time on the annealing process of used leaf spring dumb trucks has the lowest hardness value at a temperature of 650°C with a holding time of 90 minutes, namely 7.7 HRC.
Analisa Kinerja Reaktor Pirolysis Tanpa Menggunakan Bahan Bakar dalam Menghasilkan Bio-Arang Dan Asap Cair Rajabiah, Nurlaila; Ridhuan, Kemas; Mafrudin, Mafrudin; Saputra, Nugroho Adi
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 2 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i2.2978

Abstract

The combustion process of pyrolysis needs fuel as a heat source. The pyrolysis process can be performed without fuel, which reduces costs and increases process efficiency. The quantity of charcoal and liquid smoke, as well as the duration of the pyrolysis process, are the main objectives of this study. The research technique that uses rubber wood as a raw material and pyrolysis combustion in a reactor devoid of fuel or heat source. According to study findings, the yield of charcoal products was 33.0%, while that of liquid smoke was 7.3%. The pyrolysis combustion process lasted for 270 minutes, during which time the reactor's maximum raw material flame combustion temperature reached 447C. The results of the pyrolysis of charcoal have the following characteristics: 9.19% water content, 4.52% ash content, and 7475.87 cal/gr heat content. Burning pyrolysis without fuel can save three times as much biomass as burning pyrolysis with fuel.Keywords: Pyrolysis, Combustion, Biomass, Charcoal, Liquid smoke.
Pengaruh Viskositas Coolant dengan Variasi Depth Of Cut Terhadap Keausan Pahat Carbaide Pada Proses Turning VCN 150 Rajabiah, Nurlaila; Ridhuan, Kemas; Yan Foltha, Richo
English Vol 1 No 2 (2023): Volume 1 - Nomor 2 - Oktober 2023
Publisher : Fakultas Teknik dan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47970/jttt.v1i2.485

Abstract

Sifat coolant yang dapat menurunkan gaya gesek dan temperatur pada pahat potong tentunya dapat mengahasilkan suatu produk yng berkualitas dan tentunya akan memperpanjang umur pahat dari keausan pahat akibat kontak dengan benda kerja pada saat proses produksi. Untuk medapatkan sifat dan viskositas yang ideal dari coolant tentunya dilakukan percampuran dari dua jenis fluida yaitu oli dan air. Nilai viskositas tersebut akan berpengaruh pada nilai keausan pahat, umur pahat, dan temperatur pahat karbida ISO 6 dengan spesimen atau benda kerja VCN 150 (diameter: 30 mm dan panjang: 100 mm). Nilai keausan pahat di ukur dengan batas keausan untuk pahat karbida yaitu 0,2 mm – 0,5 mm. Hasil penelitian menunjukan bahwa nilai DOC pada saat proses pemakanan berbanding lurus dengan nilai keausan pahat. Nilai keausan terendah pada DOC 1 mm dengan nilai viskositas (ɳ) 0,44 yaitu 0,1479 mm dan terbesar pada DOC 3 mm yaitu 1,0524 mm, tentunya untuk nilai viskositas optimum terdapat pada nilai viskositas (ɳ) 0,44 dengan komposisi percampuran air dan oli (50%:50%). Selanjutnya nilai DOC pada proses pemakanan terhadap temperatur pahat berbanding lurus. Temperatur terendah pada DOC 1 mm yaitu 38oC dengan nilai viskositas (ɳ) 0,30 dan temperatur tertinggi pada DOC 3 mm yaitu 96oC pada viskositas (ɳ) 0,51. Selanjutnya nilai DOC berbanding terbalik dengan umur pahat. Nilai umur pahat terkecil pada DOC 3 mm pada viskositas (ɳ) 0,30 sebesar 0,2045 menit dan umur pahat tertinggi pada DOC 1 mm yaitu pada viskositas (ɳ) 0,44 sebesar 1,4492 menit.
Pengaruh Variasi Frekuensi terhadap Nilai Kapasitansi dan Konduktansi Nanofiber Polianilin Rajabiah, Nurlaila; Nugroho, Eko; Umiyati, Ngurah Ayu Ketut
TURBO [Tulisan Riset Berbasis Online] Vol 13, No 2 (2024): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v13i2.3435

Abstract

This research is driven by the need to develop conductive materials that can be applied to sensitive and responsive sensors. Polyaniline-based sensors offer potential solutions for a variety of applications, including gas detection, medical imaging, and environmental monitoring. However, to optimise sensor performance, a deep understanding of the factors influencing polyaniline conductance is required. The object of this research is the synthesis of polyaniline nanofibers using the interfacial polymerization method with frequency variations. Capacitance and conductance testing uses inductance, capacitance, and resistance measuring instruments (LCR meters). The characterization results show that variations in voltage frequency have a significant impact on the conductive and capacitive properties of the nanofiber. An increase in frequency causes a decrease in capacitance at high frequencies. The highest capacitance value is at a frequency of 1 kHz, namely 149.9 pF, while the highest conductance value is at a frequency of 100 kHz, namely 134.64 siemens (1/ohm). The conductivity of polyaniline nanofiber shows a positive influence, with increasing conductance values at higher frequencies. This increase shows that the size and morphology of the nanofiber indicate the nanofiber's ability to conduct electric current. These results provide deep insight into the influence of frequency in controlling the conductive properties of polyaniline nanofibers, which can be applied in the development of sensors, flexible electronic devices, and other fields that utilise polymer conductivity. Key words: frequency, capacitance, conductance, polyaniline nanofiber.
ANALISA PENGARUH WAKTU DAN SUHU PADA RUANG BAKAR INCINERATOR MENGGUNAKAN ASTM A36 TERHADAP NILAI KOROSI Nugroho, Eko; Rajabiah, Nurlaila; Pramudya, Yudha
TURBO [Tulisan Riset Berbasis Online] Vol 13, No 2 (2024): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v13i2.3825

Abstract

Incinerator is a device designed and used for burning non-metal solid waste using certain technology at high temperatures. Corrosion is damage or destruction of materials due to chemical reactions in the surrounding environment. High temperature and usage time in incinerators made from ASTM A36 is one of the factors for corrosion. The purpose of the research is to determine the effect of combustion time on corrosion value and the effect of high temperature combustion temperature on corrosion value. The research method carried out is an experimental approach by putting the ASTM A36 steel plate into the oven with the temperature to be used, namely 600 0C, 650 0C, and 700 0C with the heating time to be used for 3 hours, 5 hours, and 7 hours. The corrosion process is carried out by leaving it in the open air for 7 days and after that data collection and calculation of corrosion values are carried out. From the calculation results at a temperature of 600 0C and a heating time of 3 hours, the lowest corrosion value is 0.42020 mm/year and the highest occurs at a temperature of 700 OC and a heating time of 7 hours of 1.77629 mm/year.
Exploring Research Trends on Google Classroom: An Analysis from Methodologies to Result-Based Recommendations Salim, M Agus; Rajabiyah, Nurlaila
Jurnal Citizenship Virtues Vol. 5 No. 1 (2025): Penguatan Nilai-Nilai Demokrasi, Kewarganegaraan, dan Kearifan Lokal dalam Era
Publisher : LPPM STKIP Kusuma Negara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37640/jcv.v5i1.2288

Abstract

This study explores research trends related to Google Classroom as a digital learning platform, focusing on the analysis of methodologies, research subjects, effectiveness, and resulting recommendations. Using a descriptive meta-analysis approach, this study reviewed 42 articles from Scopus Q1-Q4 indexed journals obtained via Elicit.com. The findings reveal a significant increase in Google Classroom usage during the COVID-19 pandemic, with a dominance of quantitative methodologies (47.6%) emphasizing effectiveness and learning outcomes. University students emerged as the dominant subjects, reflecting the platform’s popularity in higher education. Additionally, Google Classroom has proven effective in supporting independent learning, collaboration, and student engagement. Key recommendations include intensive training, the development of interactive features, and enhanced technological infrastructure to ensure the platform's sustainability and relevance in the future. This study concludes that Google Classroom is a flexible and adaptive learning tool, yet it requires more comprehensive implementation strategies to maximize its potential in digital education.
Exploring the Role of Emotional Intelligence and Self-Confidence in Supporting Islamic Religious Education Learning Outcomes Salim, M Agus; Rajabiyah, Nurlaila; Misrodin, Misrodin
Jurnal Pendidikan Agama Islam Indonesia (JPAII) Vol. 6 No. 1 (2025): March
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jpaii.v6i1.1431

Abstract

Purpose of the study: This study aims to investigate the effect of emotional intelligence (EI) and self-confidence on students' academic achievement in Islamic religious education, as well as evaluate the interaction between the two variables and provide strategic recommendations for educators to improve student learning outcomes. Methodology: The method used in this research is quantitative with ex post facto design. The research sample consisted of 35 students of the Early Childhood Education Teacher Education (PG-PAUD) Study Program at STKIP Kumala Lampung. Data were collected through questionnaires measuring emotional intelligence (EI), self-confidence (SC), and student learning outcomes, and data were analyzed using ANOVA and paired-samples t-test. Main Findings: The results showed a significant relationship between emotional intelligence (EI) and self-confidence (SC) on student learning outcomes. Students who have high levels of emotional intelligence and self-confidence tend to achieve better learning outcomes, with the average learning outcome reaching 78.90, compared to students who have low levels of emotional intelligence and self-confidence which only reach 66.95. This finding confirms the importance of emotional intelligence and self-confidence development in the context of Islamic religious education. Novelty/Originality of this study: The uniqueness of this study lies in its focus on the influence of emotional intelligence (EI) and self-confidence (SC) in the context of Islamic religious education, which is still less explored in the literature. This research provides new insights that are useful for improving teaching strategies, supporting student development, as well as enriching existing knowledge in the field of Islamic religious education.
Analisis Kemampuan Panel Surya Monokristalin 150 Watt pada Arus dan Pengisian yang Dihasilkan Salim, M Barkah; Rajabiah, Nurlaila
JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Vol. 3 No. 1 (2019): JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) - May 2019
Publisher : Universitas Nurul Huda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30599/jipfri.v3i1.342

Abstract

The sun is a source of energy that cannot be used up. Therefore, the utilization of solar energy must be a priority. With the many types of solar panels that have been developed, researchers conducted an analysis of 150 watt monocrystalline solar panels. The purpose of this study is to know the amount of current and voltage produced by solar panels in some conditions of the sky, namely cloudy, bright cloudy, and bright. The research method used was the experiment. From the data that has been obtained, it can be found that the energy produced by solar panels during cloudy ranges from 0.6-0.8 amperes, when it is cloudy, 0.9-1.9 amperes, and when bright 2.0-3.2 amperes. The amount of electrical energy that can be produced is 8%. However, if the sunny state can produce twice that Suggestions for readers are if you want to take data to make sure the solar panels are completely exposed to the sun during data collection and in the open area. Much better if the angle is adjusted in the direction of sunlight.
Co-Authors Asroni Asroni Chika Setyadi Dadang Iskandar Dien Fahlevi Dwi Irawan Eko Nugroho Eko Nugroho Eko Nugroho Juda Inai Kamsul Abraha Kamsul Abraha Kemas Ridhuan Kemas Ridhuan, Kemas Ketut Umiati, Ngurah Ayu Kristian, Latif Kuwat Triyana Kuwat Triyana La Rudawin Lukito Dwi Yuono M. Barkah Salim Mafruddin Mafruddin Mafruddin Mafruddin Mafrudin, Mafrudin Misrodin, Misrodin Nanang Setiawan Ngurah Ayu Ketut Umiati Pramudya, Yudha Rully Meygi Irawan Salim, M Agus Saputra, Nugroho Adi Surono, Bambang Tri Cahyo Wahyudi Umiyati, Ngurah Ayu Ketut Untung Surya Dharma, Untung Surya Wahyu Setiawan Yan Foltha, Richo