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All Journal Jurnal Inovasi Pendidikan Kimia Rekayasa Mesin Jurnal Pseudocode Rekayasa Sipil AGRIVITA, Journal of Agricultural Science Phenomenon : Jurnal Pendidikan MIPA Jurnal Tadris Kimiya Chemistry in Education Indonesian Journal of Chemical Science Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Global Citizen : Jurnal Ilmiah Kajian Pendidikan Kewarganegaraan Indonesian Journal of Pure and Applied Chemistry Jurnal Pengembangan Rekayasa dan Teknologi Jurnal Ilmiah Sinus STRING (Satuan Tulisan Riset dan Inovasi Teknologi) JOURNAL OF INFORMATION SYSTEM RESEARCH (JOSH) TIN: TERAPAN INFORMATIKA NUSANTARA Indonesian Community Service and Empowerment Journal (IComSE) Jurnal Kependidikan: Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran dan Pembelajaran Jurnal Pendidikan dan Teknologi Indonesia Abdi Masya Pendagogia: Jurnal Pendidikan Dasar Bulletin of Computer Science Research Jurnal Abdimas Kartika Wijayakusuma Law Development Journal Verstek Schrodinger : Jurnal Ilmiah Mahasiswa Pendidikan Fisika Journal of Innovation Research and Knowledge Makara Journal of Science Jurnal Pengabdian Masyarakat Bangsa Jurnal Aplikasi Sistem Informasi dan Elektronika Kultura: Jurnal Ilmu Sosial dan Humaniora Jurnal Teknologi dan Rekayasa Alat Berat (JTRAB) Bioma : Jurnal Ilmiah Biologi PESHUM Jurnal Inovasi Pendidikan Kimia Journal of Community Empowerment
Harjono Harjono
Fakultas Kehutanan Universitas Gadjah Mada
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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Optimalisasi Exhaust Brake pada Unit HINO 500 FM 260 JD untuk Menurunkan Potensial Lost Cost Unit Hauling M.Burhanudin; Harjono, Harjono; Prihadianto, Braam Delfian; Sugiyanto, Sugiyanto
Jurnal Teknologi dan Rekayasa Alat Berat Vol 2 No 1 (2025): JTRAB Volume 2, No 1, 2025
Publisher : Department of Mechanical Engineering, Vocational College, Gadjah Mada University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtrab.v2i1.13196

Abstract

Based on field observations, the exhaust brake component on the Hino 500 FM 260 JD unit frequently experiences breakdowns. One of the primary causes of failure is the ingress of mud into the exhaust chamber, which disrupts the functionality of the component. This study aims to compare the performance of exhaust brake components with and without a protective cover to enhance their lifetime, analyze the failure rate, and calculate the potential lost cost associated with exhaust brake failures in hauling units. Data collection was conducted directly in the field, and protective covers were installed on three dump truck units in the hauling fleet. The test results indicate that when the exhaust brake component was used without a cover, 14 failures were recorded, whereas with the cover installed, only 4 failures occurred. These findings demonstrate that the protective cover significantly impacts the lifetime and failure rate of the exhaust brake component. Following the testing phase, a potential lost cost analysis was conducted, considering four cost variables: spare parts, production losses, operator costs, and mechanic costs.
Analisis Penyebab Kerusakan Transmisi Dump Truck LGMG CMT 96 DT 060-032 di PT ANSAF INTI RESOURCES Irsal Revanza; Surojo, Surojo; Harjono, Harjono; Prihadianto, Braam Delfian
Jurnal Teknologi dan Rekayasa Alat Berat Vol 2 No 1 (2025): JTRAB Volume 2, No 1, 2025
Publisher : Department of Mechanical Engineering, Vocational College, Gadjah Mada University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtrab.v2i1.14179

Abstract

Dump truck LGMG CMT 96 is employed by PT Ansaf Inti Resources for overburden transportation, operating up to 22 hours per day. In the unit coded DT 060-032, a transmission failure was detected at 2,143.5 hours, significantly below the company's target of 20,000 hours. The symptoms of the failure included the activation of the transmission warning indicator, fault codes, excessive jolts during operation, transmission overheating, and gear shifting failures. This study identifies the primary causes of the failure through monitor checks, visual inspections, historical maintenance data, the Machine Inspection Program (PPM), the Lubricant Analysis Program (PAP), and transmission overhaul results. The applied failure analysis method revealed brittle fracture of the lock-up clutch and excessive clutch wear due to deformation, heat spots, and blue temper. Operational errors were concluded to be the main cause of the transmission failure, leading to clutch slip and the appearance of fault code F:191 S:8.
INOVASI PELAYANAN PUBLIK: PENGARUH KEWIRAUSAHAAN DAN KEPEMIMPINAN KEWIRAUSAHAAN DALAM REFORMASI ADMINISTRASI PEMERINTAHAN Ana Mayasari; Harjono, Harjono; Putri Maha Dewi; Herwin Sulistyowati
Journal of Innovation Research and Knowledge Vol. 5 No. 1: Juni 2025
Publisher : Bajang Institute

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Abstract

Penelitian ini bertujuan untuk menganalisis bagaimana kewirausahaan dan kepemimpinan kewirausahaan berkontribusi dalam mendorong inovasi pelayanan publik sebagai bagian dari reformasi administrasi pemerintahan. Fokus utama diarahkan pada bagaimana nilai-nilai kewirausahaan seperti inovatif, proaktif, dan berani mengambil risiko diterapkan dalam konteks birokrasi publik, serta bagaimana kepemimpinan yang adaptif dan visioner mempengaruhi perubahan sistem pelayanan. Pendekatan yang digunakan adalah kualitatif dengan metode studi kasus pada beberapa instansi pemerintahan daerah yang telah melaksanakan inovasi pelayanan publik secara signifikan. Data dikumpulkan melalui wawancara mendalam, observasi lapangan, dan studi dokumentasi. Hasil penelitian menunjukkan bahwa penerapan prinsip-prinsip kewirausahaan dalam lingkungan birokrasi dapat memecah kebekuan struktural dan mendorong terwujudnya pelayanan yang lebih responsif, efisien, dan berbasis kebutuhan masyarakat. Kepemimpinan kewirausahaan terbukti menjadi faktor kunci dalam membentuk budaya kerja yang kolaboratif, berorientasi hasil, dan terbuka terhadap perubahan. Temuan ini memberikan implikasi penting bagi agenda reformasi birokrasi, yaitu perlunya penguatan kapasitas kepemimpinan yang mendorong inovasi serta adopsi nilai-nilai kewirausahaan dalam sistem pemerintahan yang adaptif dan partisipatif
Aplikasi Pembelajaran Matematika “MatAsik” Untuk SD/MI Berbasis Android Menggunakan Kodular Ningsih, Nuning Melia; Harjono, Harjono; Purbasari, Dita Anggi; Ulya Dhina, Karina Octamardia
Jurnal Ilmiah SINUS Vol 23, No 2 (2025): Vol. 23 No. 2, Juli 2025
Publisher : STMIK Sinar Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30646/sinus.v23i2.933

Abstract

The development of technology, especially computers, can be used as a tool to create learning media, while mobile phones, especially Android-based ones, can be used as a means to deliver learning media. Based on interviews and observations in class, the researcher concluded that teachers have not been optimal in using learning media so that students are interested in learning, especially mathematics. Therefore, the creation of Android-based Mathematics learning media can make learning easier, more fun and more practical. This learning application is designed to be simple, efficient and easy to operate by users, especially elementary school students. This study aims to create an Android-based mathematics learning application using the class V code for elementary schools/Islamic elementary schools as an independent learning medium and to help increase students' interest in learning. The research method used is the extreme programming method which includes the stages of planning, design, coding, and testing which are calculated based on the Likert scale.  The results of the study showed that the average respondent strongly agreed that the application is suitable for use as an alternative android-based mathematics learning media using Kodular with the hope that students are happy and motivated to learn mathematics.
Analisis Resiko Fuel System Terhadap Kasus Low Power Engine Performance pada Unit Asphalt Finisher di PT. PP Presisi Widada, Reza Ananda; Prihadianto, Braam Delfian; Wibowo, Setyawan Bekti; Harjono, Harjono
Jurnal Teknologi dan Rekayasa Alat Berat Vol 1 No 2 (2024): JTRAB Volume 1, No 2, 2024
Publisher : Department of Mechanical Engineering, Vocational College, Gadjah Mada University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtrab.v1i2.11051

Abstract

The fuel system plays an important role in the BOMAG BF 800 C Asphalt Finisher unit operating in road paving work. The engine performance of the BOMAG BF 800 C Asphalt Finisher unit will decrease if no fuel system is checked immediately. The purpose of this study is to analyze the fuel system that causes low power engine performance in the BOMAG BF 800 C Asphalt Finisher unit. The method used to solve these problems is a qualitative method using Fault Tree Analysis (FTA) analysis and Failure Mode and Effect Analysis (FMEA) as well as quantitative methods by calculating the mean time to failure (MTTF) and mean time to repair (MTTR) in accordance with the track record of using and repairing the BOMAG BF 800 C Asphalt Finisher unit. Based on the results of research that has been done, it is stated that the RPN value of the fuel injector is 324 and the fuel filter is 168. This calculation makes these components the most critical components in the case of low power engine performance. The specified maintenance activity interval on the fuel injector is 84 hours and the fuel filter is 35 hours.
PERENCANAAN KONSTRUKSI PENGENDALI SEDIMEN (CHEKDAM) DI HILIR KALI PACAL BOJONEGORO Harjono, Harjono; Widhiastuti, Yulis
Jurnal Pengembangan Rekayasa dan Teknologi Vol. 2 No. 2 (2018): November (2018)
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/jprt.v14i2.1224

Abstract

Meeting the needs and maintaining the availability of water is an effort where a situation where the area is usually not run by water such as settlements, industrial areas, and other public facilities. This situation is considered to be detrimental to both morally and materially, the impact of which will directly be felt by humans. Therefore humans must balance between needs and natural conditions.Please note that the Klepek Dam is one of the buildings that functions as a water reservoir after the Pacal Reservoir for irrigation needs in the rice fields. To realize the success of quality Dam buildings and able to function as planned, it is needed by making check dam using concrete consumption.From studies and calculations that have been done using software, AutoCad, and Harpes calculation methods, it is known the impact of flood discharge and cross section in the Lusi watershed to determine whether or not the cross section of the Pacal Reservoir is necessary. The problem of holding water in the Pacal Reservoir is overcome by making check dam using concrete consumption
MENGURAI PERAN GANDA PEMERINTAH DAERAH DALAM PENGEMBANGAN PARIWISATA BERKELANJUTAN (STUDI KRITIS DI KAWASAN WISATA TAWANGMANGU) Purwanti, Purwanti; Samsi, Samsi; Yitno Puguh Martomo; Harjono, Harjono
Journal of Innovation Research and Knowledge Vol. 5 No. 4: September 2025
Publisher : Bajang Institute

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Abstract

Sustainable tourism development poses a significant challenge for local governments in maintaining a balance between economic, social, and environmental interests. However, the multiple roles played by local governments often face structural and operational obstacles. This study aims to critically examine how the Karanganyar Regency Government fulfills its roles as a motivator, facilitator, and dynamizer in promoting sustainable tourism in the Tawangmangu tourism area. This research employs a qualitative approach using a case study strategy, collecting data through in-depth interviews, participatory observation, and documentation involving informants from government agencies, tourism managers, business actors, and tourists. Data analysis follows the interactive model of Miles, Huberman, and Saldana. The findings indicate that the facilitator role is the most dominant in tourism development efforts, while the roles of motivator and dynamizer are present but not yet optimal. Supporting factors include natural potential, local cultural richness, and policy support, while the main obstacles consist of limited budget allocation, weak cross-sector coordination, and low public awareness of environmental issues. The study concludes that strengthening multi-stakeholder collaboration and integrating cross-sectoral policies are strategic steps to ensure the sustainability of tourism in Tawangmangu
PBL-TARL-CRT: INTEGRATING INNOVATIVE APPROACHES TO IMPROVE SCIENCE LEARNING OUTCOMES IN GRADE 8 Sonya, Mellyaning Oktaviani Sonya Kirana Sari; Harjono, Harjono
BIOMA : Jurnal Ilmiah Biologi Vol. 13 No. 1 (2024): April 2024
Publisher : Prodi Pendidikan Biologi, FPMIPATI, Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/bioma.v13i1.693

Abstract

This study explores the integration of three innovative learning approaches, namely Problem-Based Learning (PBL), Teaching at the Right Level (TaRL), and Culturally Responsive Teaching (CRT), in improving learning outcomes in Science in grade 8. In education as a pillar of state-building and character-building, these approaches provide a foundation for effective and meaningful learning. PBL places students as agents of learning by providing real challenges, while TaRL adapts learning to students' ability levels, and CRT utilizes students' cultures and experiences for more meaningful learning. An experiment at Junior High School 25 Semarang showed significant improvements in student learning outcomes, learning motivation, and student character. Quantitative analysis confirmed the improvement in learning outcomes, while interviews revealed positive changes in students' learning motivation and character. However, challenges in learning implementation were also shown, including the need to increase diversity in teaching methods, pay attention to students' needs, and create an interactive learning environment. This study shows that the integration of PBL, TaRL, and CRT is promising in improving science learning outcomes and shaping students' characters. However, continuous efforts to improve the quality of learning and the role of teachers are essential to achieving optimal learning goals and creating a bright and characterful generation.
ANALISIS YURIDIS HAK EX OFFICIO DALAM MELINDUNGI PEREMPUAN YANG BERHADAPAN DENGAN HUKUM SEBAGAI PIHAK Winta, Khoirin; Harjono, Harjono
Kultura: Jurnal Ilmu Hukum, Sosial, dan Humaniora Vol. 2 No. 3 (2024): Kultura: Jurnal Ilmu Hukum, Sosial, dan Humaniora
Publisher : Kultura: Jurnal Ilmu Hukum, Sosial, dan Humaniora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.572349/kultura.v2i3.1109

Abstract

Penelitian ini mempunyai tujuan untuk menelaah ratio decidendi hakim dalam menerapkan hak ex officio yang diterapkan oleh Hakim dalam Putusan Nomor 379/Pdt.G/2021/PA.Bjb dan Putusan Nomor 203/Pdt.G/2021/PA.Srog dan menganalisis kemampuan hak ex officio yang diterapkan oleh hakim dalam kedua putusan tersebut terhadap perlindungan bagi perempuan sebagai pihak dalam perkara perceraian guna menjamin hak-haknya. Penelitian ini dilakukan melalui penelitian hukum normatif yang bersifat deskriptif yakni dengan cara memberikan gambaran mengenai hasil penelitian dengan menggunakan pendekatan kasus, namun penelitian tidak dijustifikasi oleh peneliti. Jenis data yang digunakan dalam penelitian ini adalah bahan hukum primer dan bahan hukum sekunder. Hasil penelitian ini, didapatkan bahwa Hakim dalam memutus perkara perceraian pada kedua putusan tersebut menerapkan hak ex officio dengan memberikan pertimbangan berdasarakan aspek yuridis, sosiologis, dan filosofis dengan berpedoman pada Pasal 41 Undang-Undang Perkawinan juncto Pasal 149 Kompilasi Hukum Islam dan PERMA Nomor 3 Tahun 2017 yang secara khusus menegaskan untuk memberikan perlindungan kepada perempuan melalui pemberian nafkah iddah, mut’ah, nafkah madhiyah dan nafkah anak sebagai wujud jaminan terhadap hak-hak perempuan sebagai akibat perceraian.
Analisis Keamanan Website Pendaftaran Mahasiswa Baru Dengan Munggunakan Metode Vulnerability Assessment Hafsari, Sherli Ameilia; Harjono, Harjono
TIN: Terapan Informatika Nusantara Vol 4 No 11 (2024): April 2024
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/tin.v4i11.5060

Abstract

The website plays an important role in the educational context, such as in managing the academic system, accepting new students, and other functions. Publications carried out online by utilizing the official campus website can make it easier for parents or student registrants from areas outside the city or even outside the island to find complete information about the desired university. Universitas Muhammadiyah Purwokerto has an online student registration system through a pmb.ump.ac.id website. An agency or organization can suffer losses if the information obtained falls to unauthorized parties, so an information system must have the ability to overcome and stop the desired bad steps. To prevent these events, this research was applied using the Vulnerability Assessment method with the aim of obtaining information on security gaps and vulnerabilities on the new student registration website of Universitas Muhammadiyah Purwokerto. The test results obtained using the vulnerability tool found a number of security holes on the new student registration website of the University of Muhammadiyah Purwokerto. Researchers have provided several recommendations to address the findings of security holes that can be used.
Co-Authors - Jumaeri Abid Yanuar Badharudin Abidin, Luthfa Abibah Nur Adityo Wahyu Wikanto Agung Purwo Wicaksono Agung Tri Prasetya Ali Arif Setiawan Amalia Choirni Sovawi, Amalia Choirni Ana Mayasari Apriliana, Mahatma Arfa, Nafilatul Artani, Amalina Atikah Indriastuti Ayu Cendana, Chinta Celi Cahyaningrum, Intan Cepi Kurniawan Damayanti, Yosephine Debbie Dani, Jeratallah Aram Dani Desi Tri Utami, Desi Tri Dewi, Siti Herlina Dian Wahyudi Drestajumna, Putu Dwi, Itok Edy Cahyono Eka Purwaningsih Endang Susilaningsih Ermadi Satriya Wijaya, Ermadi Satriya Estiko, Dendi Milnanda Fardhila, Widityana Ayu Farhanah, Atikah Alya Feliana, Kiki Feliana, Kiki Feri Wibowo Fitriyaningsih, Afi Hafsari, Sherli Ameilia Hakim, Mansur Hanuring Ayu Ardhani Putri Hastuti, Vidya Dwi Hastuti, Vidya Dwi Heri Hartanto Herwin Sulistyowati Holifah, Siti Holifah, Siti Ichsan, Maulana Irawati Irawati Irsal Revanza ITOK DWI KURNIAWAN Izzania, Rahma Annisa Kadek Evinka Yuristin, Kadek Evinka Kasmui -, Kasmui Khavilla, Vidya Putri Kusmanto, Harjito Kusoro Siadi Lestari, Fina Ayu Lestari, Melinda Dwi Lestari, Melinda Dwi Lestari, Rika Ayu M.Burhanudin Marfina, Apriza Margareta Dian Purnamasari, Margareta Dian Mas’ud, Zainal Alim Murbangun Nuswowati Nanik Wijayati Ningsih, Nuning Melia Norma Eralita Nufus, Khayatun Nufus, Khayatun Nuning Melianingsih, Nuning Nur Hidayat, Taufiq Wahyu Nur Wijayanti, Christina Nurhayati Nurhayati Nurul Arifin Nuryanto Nuryanto Pambayun, Osama Wara Poundra, Emmanuelle Pramuktisari, Nindita Prasetyaningtyas, Renata Putri Prasetyaningtyas, Renata Putri Prasetyo, Ridho Prihadianto, Braam Delfian Pujiastuti, Rr. S.E Purbasari, Dita Anggi Purnomo, Muhammad Ikhwannusyifa PURWANTI PURWANTI Purwantiningsih Sugita Putri Maha Dewi Putri, Adhina Choiri Putri, Eno Sukarno Putri, Gustita Arnawati Rakhmawati, Indri Rifa'i, Fitra Ahmad Rihmahwati, Melly Rini, Luluk Takari Sarjana Riyanto, Ari Fajar Rosalina Ananta, Rosalina S Mursiti Safrudin Yudowibowo Saiful Fatihin, Saiful Samsi Samsi Samuel Budi Wardana Kusuma, Samuel Budi Wardana Samuel Budi Wardhana Kusuma Saputra, Dewa Kahfi Sari, Hanifah Kartika Savitri, Retno Wahyu Sembiring, Rinawati Septiningsih, Ismawati Setyaningrum, Rizka Indriani Setyawan Bekti Wibowo Sharif, Aisyah Mohamad Sholikhah, Nining Siami, Fitri Sigit Priatmoko Siti Istiningsih, Siti SITI MUSLIMAH WIDYASTUTI Soeadgihardo Siswantoro Soehartono Soehartono Sonya, Mellyaning Oktaviani Sonya Kirana Sari Sri Haryani Sri Hutami Sri Nurhayati Sri Puji Lestari Sri Susilogati Sumarti Sri Wahyuni Sri Wahyuningsih Yulianti, Sri Wahyuningsih SRI WARDANI Sudarmin Sudarmin Sudarmin Sudarmin Sugiyanto - Supartono - Supartono, Tono Supartono, Tono Supriyono Supriyono Surojo, Surojo Susanti Tasik Susanto, Aris Tri Susanto, Aris Tri Susatya, Eko Budi Syahrial, Yoppi Syaifullah, Jahid Tri Handayani Tri Prasetya, Agung Ulya Dhina, Karina Octamardia Utami, Desi Tri Violiandari, Aloysia Gesya Widada, Reza Ananda Widayani, Anis Widayani, Anis Widianto, Farhan Winta, Khoirin Woro Sumarni Yitno Puguh Martomo Yoga Budi Bhakti Yulianingsih, Prita Yulis Widhiastuti Zahro, Ainu Ilmiatuz zakki adlhiyati, zakki