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All Journal Jurnal Kompetensi Teknik Jurnal Bahan Alam Terbarukan Jurnal Pendidikan Teknik Mesin Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Sainteknol : Jurnal Sains dan Teknologi Rekayasa Mesin Majalah Ilmiah MOMENTUM Jurnal Rekayasa Mesin Journal of Mechanical Engineering Learning Jurnal Teknik Mesin Indonesia Infotekmesin Jurnal Penelitian Pendidikan Indonesia Journal of Vocational and Career Education Jurnal Pendidikan dan Teknologi Indonesia Abdi Teknoyasa Jurnal Inovasi Pengabdian dan Pemberdayaan Masyarakat Advance Sustainable Science, Engineering and Technology (ASSET) Jurnal Penelitian Pendidikan Journal of Vocational and Career Education Jurnal Bahan Alam Terbarukan J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Journal of Creativity Student Jurnal Puruhita
Samsudin Anis
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Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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The Effect of Using E-Module Based on Flipbook Maker on Student Understanding of the Starter System Suprayogi, Sidiq; Sutopo, Yeri; Priyatna, Bambang Sugeng; Anis, Samsudin
Journal of Vocational and Career Education Vol. 9 No. 2 (2024): December 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v9i2.28636

Abstract

A significant challenge in contemporary education is the limited understanding of technical subjects by students, such as the starter system within the Automotive Engineering program. The use of less engaging learning media leads to a decrease in student motivation, which ultimately affects academic performance. This study investigates the impact of an e-module, designed with Flipbook Maker, on student comprehension of the starter system. A quantitative approach was employed, utilizing pretests and posttests, along with surveys distributed to measure changes in understanding and student responses to digital learning media. The collected data was analyzed using simple linear regression through the SPSS software. The study involved a sample of 70 students from the XI grade of the Automotive Engineering program at SMK Negeri 1 Kandeman. The results revealed that the use of the e-module significantly improved student understanding, with a correlation coefficient (R) of 0.469 and an effect size (R Square) of 0.673, indicating that 67.3% of the variance in understanding was explained by the e-module. In conclusion, the e-module effectively enhanced student comprehension of the starter system. Students expressed a preference for digital learning media due to its flexibility in being accessed anytime and anywhere, both online and offline.
The Development of a Digital Electronics Trainer for Teaching Fundamentals of Electronics Engineering Suryani, Titin; Anis, Samsudin; Arief, Ulfah Mediaty
Journal of Vocational and Career Education Vol. 9 No. 2 (2024): December 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v9i2.29004

Abstract

The teaching of Fundamentals of Electronics Engineering often faces challenges in bridging theoretical knowledge with practical application. A lack of interactive and contextual learning media hinders students’ comprehension of foundational concepts and diminishes their motivation to learn. This study addresses these challenges by developing a digital electronics trainer as an instructional tool to support the learning process. The trainer is designed and implemented to help students explore digital electronics concepts—specifically logic gates—through relevant problem-solving activities. The aim is to enhance students’ conceptual understanding and engagement. This research employs a Research and Development (R&D) approach, utilizing the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The results demonstrate the significant effectiveness of the digital electronics trainer in improving students’ cognitive abilities. An N-Gain score of 0.71 indicates a high level of cognitive improvement in the experimental group using the trainer, compared to the control group that relied on textbook-based learning.
ANALISIS KUALITAS GAS BUANG PADA STEAM BOILER BERBAHAN BAKAR BIO-SOLAR DAN BATU BARA Ar Rasyid, Moh. Rizal; Anis, Samsudin; Susanto, Susanto; Danang, Setio Wardana
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1783

Abstract

Steam boilers fueled by biodiesel and coal are one of the industrial activities that still produce exhaust emissions such as Total Particulate (PM), Sulfur Dioxide (SO2), Opacity, Nitrogen Oxide (NOx), and Carbon Monoxide (CO) which is very dangerous for public health and the environment. Therefore, analysis of flue gas emissions in steam boiler installations equipped with filtration devices (cyclones, water scrubbers, and electrostatic precipitators) before being discharged into the environment is of important. Exhaust gas emission was measured by using a gas analyzer, smoke tester, and portable quality air monitor. The results of exhaust gas emission analysis showed that the average concentration of PM, SO2, and CO did not meet the specified emission quality standard thresholds, exempted for opacity concentration for both steam boilers fueled with biodiesel and coal. It is suspected that this is caused by the sub optimal performance of the filtration equipment used in this system. Therefore, regular maintenance is required, and if necessary, a redesign of the entire system can be carried out.
Development of Interactive Multimedia Using Articulate Storyline 3 to Enhance Learning Outcomes in Creative Fabric Lessons at a Vocational High School Shofi, Amalia; Wahyuningsih, Sri Endah; Anis, Samsudin
Jurnal Penelitian Pendidikan Vol. 42 No. 2 (2025): October 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpp.v42i2.31791

Abstract

This study aimed to develop interactive multimedia based on Articulate Storyline 3 and to test its feasibility, practicality, and effectiveness in teaching Creative Fabric to students in the Fashion Design Expertise Program at SMK Negeri 1 Purwodadi. The research method employed was Research and Development (R&D) using the ADDIE development model, which comprises five stages: Analysis, Design, Development, Implementation, and Evaluation. The experimental research design used was a Pretest-Posttest Control Group Design, involving 60 11th-grade students divided into an experimental and a control class. The results showed that the developed interactive multimedia had a very high feasibility level, with 92.27% approval from media experts and 87.69% approval from material experts. The practicality test conducted by 10 teachers yielded a score of 86.94%, which falls into the "Practical" category. In terms of effectiveness, student learning outcomes in the experimental class showed significant improvement, with an average pretest score of 72.00 and a posttest score of 91.73. In contrast, the control class showed a pretest score of 65.87 and a posttest score of 79.20. The average N-Gain score in the experimental class was 0.7204 (categorized as "very effective"), while the average score in the control class was 0.3459 (categorized as "fairly effective"). A T-test analysis of the N-Gain scores yielded a significance value of 0.000 (p < 0.05), indicating a significant difference between student learning outcomes in the experimental and control classes. Thus, interactive multimedia based on Articulate Storyline 3 has proven to be feasible, practical, and effective in improving student learning outcomes in the Creative Fabric subject within vocational education.
AI-Assisted Scientific Writing Training to Enhance the Professional Competence of Madrasah Teachers Sita Nurmasitah; Adhi Kusumastuti; Samsudin Anis; Aryo Baskoro Utomo; Godham Eko Saputro
Jurnal Puruhita Vol. 7 No. 1 (2025)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/puruhita.v7i1.37390

Abstract

The AI-assisted scientific writing training was implemented as a community service program to enhance the professional competence of madrasah teachers in the digital era. This activity aimed to equip teachers with the skills to write scientific articles, classroom action research reports, and best practice papers using artificial intelligence (AI) applications such as ChatGPT, Grammarly, QuillBot, and Mendeley. The training was conducted through hands-on practice and online mentoring using an experiential learning approach that emphasized real-world writing experiences. A total of 30 madrasah teachers participated in the program, which consisted of a pre-test, training sessions, writing practice, and a post-test. The results showed an average score improvement of 37%, particularly in aspects of writing structure, paragraph cohesion, academic language use, and reference management. Participants also demonstrated high enthusiasm and began developing independent scientific works for publication purposes. This activity proved that AI-based writing training effectively enhances teachers’ academic productivity and strengthens digital literacy as part of continuous professional development. 
Physical and Chemical Characteristics of Bio-Oil From Pyrolysis of Moringa Oleifera Seeds Using Microwave Technology Abram Puspa Pramudita; samsudin anis; Wahyudi; Fitriyana, Deni Fajar; Halim, Sonika Maulana; Sukarni
Jurnal Bahan Alam Terbarukan Vol. 14 No. 2 (2025): December 2025 [Nationally Accredited Sinta 3]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v14i2.29284

Abstract

This research aims to assess the potential of bio-oil from Moringa oleifera seeds through the analysis of physical and chemical characteristics resulting from the pyrolysis process. Raw materials in the form of Moringa oleifera seed powder were pyrolyzed at 400°C using a microwave reactor. To create oxygen free pyrolysis conditions, nitrogen gas was constantly flowed into the system at a rate of 0.15 NL/min. The process temperature was monitored using a K-type thermocouple, and the reaction was stopped when condensed vapor output was no longer observed. The pyrolysis products in the form of bio-oil and bio-char were then collected and weighed to determine the product fraction. Furthermore, the bio-oil was analyzed to determine its physical and chemical properties, including density, pH, and an indication of its constituent compound components. The results showed that pyrolysis under these conditions produced a dominant amount of bio-char (54.3%) and bio-oil of 24.7% of the total weight. The bio-oil obtained had a high density, in the range of 0.97-1.00 g/cm³, with a relatively acidic pH of 4.5-5.5. Although the bio-oil yield is not high, its complex chemical properties, particularly the content of phenolic compounds, nitriles, and amides, show great potential to be developed as a valuable bio-chemical base material such as antioxidants, biophenols, resins, and bioplastic raw materials. These findings strengthen the prospect of Moringa oleifera seeds as a strategic local biomass for sustainable bioindustry.
EVALUATION OF THE PHYSICAL AND CHEMICAL PROPERTIES OF BIO-CHAR DERIVED FROM THE PYROLYSIS OF MORINGA OLEIFERA SEEDS Muhammad Ziddun Ni’am; Wahyudi; Fitriyana, Deni Fajar; Sonika Maulana; Sukarni; Samsudin Anis
Jurnal Bahan Alam Terbarukan Vol. 14 No. 2 (2025): December 2025 [Nationally Accredited Sinta 3]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v14i2.29285

Abstract

This study aims to assess the potential of bio-char derived from Moringa oleifera seeds through an evaluation of its physical and chemical properties. Moringa oleifera seeds were processed into fine powder, dried, and then subjected to pyrolysis at 400°C using a microwave reactor. Nitrogen gas was introduced before and during the pyrolysis process to create a low-oxygen environment. The pyrolysis continued until no more condensable vapors were detected, indicating that the thermal decomposition process had reached completion. The resulting bio-char was collected and analyzed to determine its physical and chemical characteristics, including proximate analysis (moisture content, ash content, volatile matter, and fixed carbon), calorific value, and density. The results showed that the bio-char from Moringa oleifera seed powder had a very high fixed carbon content of 79.13% and low volatile matter. The calorific value reached 25.04 MJ/kg, which is comparable to that of low-rank coal. Additionally, the bio-char had a density of 0.905 g/cm³, which is relatively high compared to most biomass-derived bio-chars. These characteristics indicate that bio-char from Moringa oleifera seeds holds significant potential for use as a solid fuel in the form of briquettes or pellets, as a biomass energy source, and as a long-term carbon storage medium for climate change mitigation.
Analisis Pengaruh Laju Aliran Fluida terhadap Perpindahan Panas dan Penurunan Tekanan Pada Pipa Heliks Dendy Prayoga Dendy; M. Hilman Gumelar Syafei; Illa Rizianiza; Samsudin Anis; Ahmad Indra Siswantara
J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Vol. 10 No. 2 (2026): J-Proteksion
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jp.v10i2.3946

Abstract

Penelitian ini bertujuan untuk menganalisis hubungan antara laju aliran fluida terhadap parameter perpindahan panas dan penurunan tekanan pada sistem pipa heliks. Metode eksperimen dilakukan dengan pengamatan 23 titik waktu dalam satuan detik, menggunakan alat sensor suhu dan tekanan. Hasil menunjukkan bahwa Nilai 1 meningkat dari 12,47 hingga 87,33, sedangkan Nilai 2 mencapai puncaknya di 100 sebelum mengalami penurunan. Penurunan tekanan dihitung sebesar 6 psi menggunakan persamaan Darcy–Weisbach. Data grafik menunjukkan adanya zona linier dan zona jenuh, mencerminkan keterbatasan respons sistem sensor saat beban termal meningkat. Temuan ini menunjukkan bahwa hubungan input-output tidak selalu linear dan sistem memiliki batas performa tertentu yang perlu dikendalikan
Analisis Pengaruh Engine Temperature Terhadap Laju Konsumsi Bahan Bakar Mobil Hemat Energi Kategori Urban Etanol Muhammad Bagus Laroybafih; Samsudin Anis; Miftakhun Nuril; Fitroh Miftahul Huda; Akhlis Rahman Sari Nurhidayat; Nur Akhlis Sarihidaya Laksana
Infotekmesin Vol 17 No 1 (2026): Infotekmesin: Januari 2026
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v17i1.2976

Abstract

A crucial global issue is the world's dependence on fossil fuels as its primary energy source. An alternative solution to this problem is to use fuels such as ethanol. Using ethanol as fuel requires comprehensive optimization of the vehicle system, including the engine's temperature control. This research aims to determine the effect of engine operating temperature variations on fuel efficiency thru 4 engine temperature variations: 70, 80, 90, and 100 degrees Celsius, using two approaches: static and dynamic. The test results show that engine temperature affects fuel consumption and engine operating stability. Based on the experiments conducted, it was concluded that a temperature of 90°C is the most optimal working temperature, with an increase of 9.91% in static testing and 14.74% in dynamic testing (compared to the temperature with the lowest efficiency). It can be concluded that 90°C is recommended as the optimal working temperature for ethanol engines in the development of energy-efficient vehicles.
Mechanical Performance of Alkali-Treated Rattan Strips with Epoxy Coating for Sustainable Composite Applications Sujentheran Nair Kalatharan; Al Ichlas Imran; Agustinus Purna Irawan; Januar Parlaungan Siregar; Tezara Cionita; Deni Fajar Fitriyana; Samsudin Anis; Rozanna Dewi; Yuris Setyoadi; Wisnu Prayogo
Advance Sustainable Science Engineering and Technology Vol. 7 No. 3 (2025): May - July
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v7i3.2017

Abstract

The use of natural materials like rattan in eco-friendly composites is gaining attention in materials engineering. However, its hydrophilic nature and interaction with other materials can affect mechanical strength. This study investigates how variations in rattan size and alkali treatment influence the tensile properties of single rattan strips through an epoxy dipping process. Rattan was prepared with varying lengths (5–15 cm), widths (3–8 mm), and a consistent thickness (0.5 mm). Alkali treatment used 5% and 10% NaOH concentrations for 1 and 24 hours. Tensile testing showed that a 5 cm × 8 mm strip achieved the highest tensile strength (49.95 MPa), Young's modulus (3562.77 MPa), and low strain (5.4%), while the 15 cm × 3 mm strip had the lowest strength (9.48 MPa) and modulus (475.69 MPa) with higher strain (10.32%). A 5% NaOH treatment for 24 hours improved adhesion and performance, while 10% caused degradation.
Co-Authors - Basyirun - Soedartono A. P. Bayuseno Abdul Aziz Abram Puspa Pramudita Achmad Erlangga Bintang Samodra Adhi Kusumastuti Afindala, Ajib Agita Ainur Rizqiyah Agus Prasetyo Agustinus Purna Irawan Agustinus Purna Irawan Ahmad Indra Siswantara Ahmad Khusom Kurniawan Ahmad, Aminullah Ahmad, Aminullah Akhlis Rahman Sari Nurhidayat Al Ichlas Imran Al Ichlas Imran Aldias Bahatmaka Anas, Fahrudin Anwar Johari Ar Rasyid, Moh. Rizal Ardhianto, Mochamad Marte Aryo Baskoro Utomo Atika Atika Azhari, Wildan  Bagas Satria Adjie Pratama Budiandono, Galuh Nur Cahyanto, Septian Eko Cholifah, Ayu Cionita, Tezara Danang, Setio Wardana Dendy Prayoga Dendy Desyandri Desyandri Djuniadi Djuniadi Dwi Widjanarko Dwi Wijanarko Eko Supraptono Etanto Heiliano Wijayanto Faadhil, Muhammad Faadhil, Muhammad Faridah Nur Amalina Fariz Dwijanarko Feddy Setio Pribadi Fitriyana, Deni Fajar Fitroh Miftahul Huda Godham Eko Saputro Gustomo, Gigih Halim, Sonika Maulana Heri Yudiono Hidayatulloh, Choirul Fatah Hilal Rozaq Akbar Hilal Rozaq Akbar I Made Sudana Ibadurrohman Muhammad Taqy Ilham Ariosepto Nugroho Illa Rizianiza Iman Taka, Buyung Indarsih, Fitria Retno Indra Nurul Hidayat Irgi Fahrezi Januar Parlaungan Siregar Januar Parlaungan Siregar Januar Parlaungan Siregar Jefri Semuel Bale Karnowo - Khoiron, Ahmad Mustamil Kuntoro, Tri Latifah, Ana M Burhan R M. Hilman Gumelar Syafei M. Thooriq Anwar Maftukin, M Maftukin, M. Manalu, Janviter Maryanto, Luthfi Eka Maryanto, Luthfi Eka Masugino Miftakhun Nuril Moch. Taufiq Ichsan Mochamad Marte Ardhianto Mochammad Marte Ardianto Mufid, Faishal Muhammad Afrizal Muhammad Bagus Laroybafih Muhammad Bagus Laroybafih Muhammad Khumaedi Muhammad Ziddun Ni’am Mustikawati, Diana Langgeng Na:am, Muh Fakhrihun Najibulloh, Gunawan Muhammad Najibulloh, Gunawan Muhammad Nandang Mufti Natalino Fonseca Da Silva Guterres Ninda Kurniadi Nisriinaa, Choirun Noor Hudallah Nugroho, Rizky Fajar Nur Akhlis Sarihidaya Laksana Nur Qudus P Pramono Pangestu, Pulih Pratiwi, Wikanti Priyantama, Rifqi Dwi Priyatna, Bambang Sugeng Puspitasari, Windy Desti Putra, Naufal Bahy Rahmagandi, Irma Oktariamlati Rahmat Doni Widodo Rini Kusumawardani, Rini Risky Ismail Rizqi Fitri Naryanto Rosidah Rosidah Rozanna Dewi Rr. Poppy Puspitasari Rubai Wijaya, Burhan Rusdarti - Rusiyanto Rusiyanto, Rusiyanto Sardi Sardi SATRIA, ANAS Shofi, Amalia Siregar, Januar Parlaungan Sita Nurmasitah Sonika Maulana Sri Endah Wahyuningsih Sri Endah Wahyuningsih Sugiarto, Dedi Suharno, Muhamad Sujentheran Nair Kalatharan Sukarni Sukarni Sukarni Sunarto Sunarto Suprayogi, Sidiq Suryani, Titin Sus Widayani, Sus Susanto Susanto Suwandi, Fakhri Fauzi Syamsiar, Syamsiar Tamamudin, Mukhammad Taqy, Ibadurrohman Muhammad Tezara Cionita Tezara Cionita Thomas Junaedi Titin Agustina Triyanto, Sandy Ulfah Mediaty Arief Utomo, Okky Husnan Arya Vidiyanto, Bagus Prabowo WAHYUDI Wibowo, Salvo Eka Wicaksana, Yazid Surya Widya Aryadi Wildan  Azhari Wisnu Prayogo Yahya Zakaria Yeri Sutopo Yuris Setyoadi Zaenal Abidin Zainal, Z. A.