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All Journal International Journal of Evaluation and Research in Education (IJERE) Journal of Food and Pharmaceutical Science Rotasi Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Media Statistika Jurnal Pendidikan Bahasa dan Sastra Indonesia Undiksha Tahkim (Jurnal Peradaban dan Hukum Islam) Jurnal Ekonomi, Bisnis dan Kewirausahaan (JEBIK) Jurnal Telaah dan Riset Akuntansi Diponegoro Journal of Accounting Jurnal Kesehatan Olahraga Avatara El-HARAKAH : Jurnal Budaya Islam Pharmaciana: Jurnal Kefarmasian Media Farmasi : Jurnal Ilmu Farmasi (Journal Of Pharmaceutical Science) Jurnal Dinamika Akuntansi Analisis: Jurnal Studi Keislaman Nadwa : Jurnal Pendidikan Islam Jurnal Theologia Media Ekonomi dan Manajemen Jurnal Karya Pendidikan Matematika Jurnal Dinamika Hukum Jurnal Ushuluddin Jurnal Transformatika Indonesian Journal of Tropical and Infectious Disease Jurnal Ijtimaiyya Journal of Accounting and Investment Pharmacon JPBM (Jurnal Pendidikan Bisnis dan Manajemen) Majalah Obat Tradisional An-Nuha : Jurnal Kajian Islam, Pendidikan, Budaya Dan Sosial Pharmauho: Jurnal Farmasi, Sains, dan Kesehatan MIQOT: Jurnal Ilmu-ilmu Keislaman Walisongo: Jurnal Penelitian Sosial Keagamaan JPW (Jurnal Politik Walisongo) At-Taqaddum Jurnal Akuntansi dan Perpajakan Jaqfi : Jurnal Aqidah dan Filsafat Islam E-Dimas: Jurnal Pengabdian kepada Masyarakat Al-Adyan: Jurnal Studi Lintas Agama JURNAL KEPEMIMPINAN DAN PENGURUSAN SEKOLAH KREDO : Jurnal Ilmiah Bahasa dan Sastra Jurnal Pendidikan Ekonomi & Bisnis Script Journal: Journal of Linguistic and English Teaching Pendas mahakam : jurnal pendidikan dan pembelajaran Sekolah Dasar Langkawi: Journal of The Association for Arabic and English Al-Dzikra: Jurnal Studi Ilmu al-Quran dan al-Hadits Jurnal ASET (Akuntansi Riset) Indonesian Journal of Educational Counseling Empowerment : Jurnal Pengabdian Masyarakat Journal of Economic, Bussines and Accounting (COSTING) Kompartemen : Jurnal Ilmiah Akuntansi Indonesian Journal of Chemistry JURNAL CENDEKIA HUKUM JMM (Jurnal Masyarakat Mandiri) Ganaya: Jurnal Ilmu Sosial dan Humaniora Indonesian Food Science and TechnologyJournal JOURNAL OF APPLIED ACCOUNTING AND TAXATION Edukasi Islami: Jurnal Pendidikan Islam NUR EL-ISLAM : Jurnal Pendidikan dan Sosial Keagamaan Technomedia Journal Owner : Riset dan Jurnal Akuntansi JURNAL PETIK Zawiyah: Jurnal Pemikiran Islam Adimas : Jurnal Pengabdian Kepada Masyarakat Jurnal Keperawatan Komprehensif (Comprehensive Nursing Journal) Jurnal Teknik Jurnal Sistem Cerdas Jurnal Ilmiah Mandala Education (JIME) Jurnal Mandala Pharmacon Indonesia MBIA Jemasi Jurnal Ekonomi Manajemen dan Akuntansi Darajat: Jurnal Pendidikan Agama Islam Turast: Jurnal Penelitian dan Pengabdian JUTIS : Jurnal Teknik Informatika BALANCE Jurnal Akuntansi dan Bisnis Journal of Information Systems and Informatics Canrea Journal: Food Technology, Nutritions, and Culinary Journal Jurnal Abdimas Mandiri Neo Teknika: Jurnal Ilmiah Teknologi EDUKA : Jurnal Pendidikan, Hukum, Dan Bisnis INTEGRITAS : Jurnal Pengabdian Revenue: Jurnal Manajemen Bisnis Islam Matan: Journal of Islam and Muslim Society Jurnal Ilmu Administrasi: Media Pengembangan Ilmu dan Praktek Administrasi JURNAL RISET AKUNTANSI TIRTAYASA Res Nullius Law Journal Jurnal Teknologi dan Riset Terapan (JATRA) Motor Bakar : Jurnal Teknik Mesin Community Development Journal: Jurnal Pengabdian Masyarakat Current : Jurnal Kajian Akuntansi dan Bisnis Terkini Jurnal Fokus Manajemen Bisnis Journal of Computer Networks, Architecture and High Performance Computing Sricommerce: Journal of Sriwijaya Community Services Dinasti International Journal of Economics, Finance & Accounting (DIJEFA) Journal Coaching Education Sports Borneo Educational Journal (Borju) ARSY : Jurnal Aplikasi Riset kepada Masyarakat Yumary: Jurnal Pengabdian kepada Masyarakat JPM: JURNAL PENGABDIAN MASYARAKAT Computational and Experimental Research in Materials and Renewable Energy (CERiMRE) Jurnal Pendidikan dan Teknologi Indonesia Jurnal Farmasi Jurnal Senopati : Sustainability, Ergonomics, Optimization, and Application of Industrial Engineering Jurnal Techno Bahari MAHESA : Malahayati Health Student Journal EDUCASIA : Jurnal Pendidikan, Pengajaran, dan Pembelajaran Journal of Economics and Business Letters Al-Kawakib Jurnal Pengabdian kepada Masyarakat Bina Darma International Journal of Applied Finance and Business Studies Jurnal Impresi Indonesia International Journal of Research in Vocational Studies (IJRVOCAS) Didaktika Religia INSANIA : Jurnal Pemikiran Alternatif Kependidikan Jurnal Ilmiah Mahasiswa Raushan Fikr Pattimura Proceeding : Conference of Science and Technology JURNAL INOVASI DAN PENGABDIAN MASYARAKAT INDONESIA Edu Society: Jurnal Pendidikan, Ilmu Sosial dan Pengabdian Kepada Masyarakat Journal of Mathematics Instruction, Social Research and Opinion QiST: Journal of Quran and Tafseer Studies Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri Prosiding Seminar Nasional Teknik Sipil UMS Tsaqofah: Jurnal Penelitian Guru Indonesia ALSYS : Jurnal Keislaman dan Ilmu Pendidikan Al Muhafidz Jurnal Karya Abdi Masyarakat Jejak: Jurnal Pendidikan Sejarah Universitas Jambi Return : Study of Management, Economic and Bussines Magna: Journal of Aconomics, Management, and Business Jurnal Teknik Sipil Biner : Jurnal Ilmiah Informatika dan Komputer Jurnal Pengabdian Kreativitas Pendidikan Mahakam (JPKPM) Jurnal Gici Jurnal Keuangan dan Bisnis MODERAT: Jurnal Ilmiah Ilmu Pemerintahan Jurnal Masyarakat Madani Indonesia Eduvest - Journal of Universal Studies JBSI: Jurnal Bahasa dan Sastra Indonesia Al-Fahmu: Jurnal Ilmu Al-Qur'an dan Tafsir TAJDID: Jurnal Ilmu Ushuluddin National Multidisciplinary Sciences Applied Accounting and Management Review Jurnal RAK (Riset Akuntansi Keuangan) Jurnal Ilmiah Multidisiplin Indonesia Jeinsa : Jurnal Ekonomi Ichsan Sidenreng Rappang Kohesi: Jurnal Sains dan Teknologi Karimah Tauhid Academic Journal Research Journal of Food and Pharmaceutical Sciences Jurnal Pengabdian Masyarakat MUALLIMUN : JURNAL KAJIAN PENDIDIKAN DAN KEGURUAN Izzatuna: Jurnal Ilmu Al-Qur'an dan Tafsir Media Hukum Indonesia (MHI) Talent: Journal of Economics and Business Jurnal Ekonomi Pertanian dan Agribisnis IPSIKOM Management Analysis Journal Journal of Innovation and Research in Agriculture El-Mu'Jam. Jurnal Kajian Al Qur'an dan Al-Hadis Jurnal Dinamika Akuntansi Jurnal Kefarmasian Indonesia Suhuf: International Journal of Islamic Studies Mein: Journal of Mechanical, Electrical & Industrial Technology Islamic Perspective on Communication and Psychology Jurnal Pemberdayaan Masyarakat dan Komunitas Jurnal Manajemen Riset Bisnis Indonesia IQTISHADUNA: Jurnal Ilmiah Ekonomi Kita Jurnal Keislaman Advance Sustainable Science, Engineering and Technology (ASSET) Eduprof INOVTEK Polbeng - Seri Informatika Indonesian Governance Journal : Kajian Politik-Pemerintahan Jurnal At-Tadbir: Media Hukum dan Pendidikan Dinamika Pendidikan Jurnal Tarbiyatuna Al Mudzakarah: Journal of Islamic Studies Jurnal Teknologi dan Bisnis Cerdas Indonesian Journal of Aerospace Academia Open EDUKASIA: Jurnal Penelitian Pendidikan Islam
Abdul Rohman
Jurusan Akuntansi, Fakultas Ekonomi, Universitas Diponegoro Semarang Kampus Tembalang, Semarang 50239
Religion 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 Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Other

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The Influence of Al-Qira’at Al-Asyr on the Exegesis of Legal Verses in Tafsir Marah Labid by Nawawi Al-Bantani: A Historical and Analytical Study Rohman, Abdul; Mubaroka, Barikli; Amin; Irfan
Jurnal Ilmiah Mahasiswa Raushan Fikr Vol 13 No 2 (2024): Jurnal Ilmiah Mahasiswa Raushan Fikr
Publisher : Lembaga Kajian dan Pemberdayaan Mahasiswa UIN Prof. KH. Saifuddin Zuhri Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24090/jimrf.v13i2.11957

Abstract

The interpretation of the Qur’an often involves various tools such as linguistic analysis, historical context, and qiraat (variant readings), which significantly influence interpretative outcomes. This article examines the impact of the ten qiraat on legal verses in Nawawi Al-Bantani’s exegesis, Tafsir Marah Labid. Employing a qualitative content analysis method, the primary source is the Tafsir Marah Labid. Findings show that Nawawi Al-Bantani, a prominent Nusantara scholar adhering to the Shafi’i school of thought, was heavily influenced by the ten qiraat (al-Qiraat al-’Asyr) in his interpretation of legal verses. This influence is evident in legal debates where Nawawi often favored qiraat, which aligned with Shafi’i legal rulings. Nonetheless, his approach is commendable as he consistently selected sahih (authentic) qiraat conforming to the Uthmanic script.
Analisis Konsumsi Daya Listrik Dan Penggunaan Mesin Bar Cutting Merk Seoul Type SUC 35 Candra, Riki; Rohman, Abdul
Motor Bakar : Jurnal Teknik Mesin Vol 8, No 2 (2024): Motor Bakar: Jurnal Teknik Mesin
Publisher : Universitas Muhammadiyah Tangerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31000/mbjtm.v8i2.11795

Abstract

Mesin bar cutting atau mesin pemotong besi adalah alat yang digunakan untuk memotong besi beton sesuai dengan perencanaan. Penggunaan mesin bar cutting dalam pekerjaan konstruksi bangunan merupakan alat yang sangat diperlukan untuk proses pembuatan rangka beton, karena istilah bar pada nama mesin ini mengacu pada batangan baja tulangan. Penelitian ini bertujuan untuk mengetahui daya listrik yang di konsumsi oleh mesin bar cutting type SUC 35. Diketahui pada saat mesin di hidupkan (inrush) dihasilkan daya sebesar 10.417 watt,  pada saat hidup normal (running) dihasilkan daya sebesar 1.302 watt, kemudian pada saat memotong besi diameter 16mm sebanyak 3 batang sesuai dengan kapsitas yang tertera pada tabel kinerja pemotongan mesin 3.396 W, pada saat memotong besi diameter 25mm 1 batang 4.812 W dan pada saat memotong dengan kapasitas maksimal besi diameter 32mm 10.869 W.
Penerapan Layanan Konseling Kelompok untuk Meningkatkan Keaktifan Belajar Siswa di Kelas VII SMPIT Nurul Fajri Rohman, Abdul; Permana, Dede; Nurhasanah, Nurhasanah
Indonesian Journal of Educational Counseling Vol 5 No 2 (2021)
Publisher : Universitas Mathla'ul Anwar Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30653/001.202152.219

Abstract

Tujuan penelitian ini adalah untuk meningkatkan keaktifan belajar siswa dikelas VII SMPIT Nurul Fajri tahun ajaran 2021/2022’’dengan penerapan layanan konseling kelompok Dalam prakteknya keaktifan siswa dalam pemberian layanan klasikal ini dirasa oleh guru BK masih jauh dari harapan. Seperti yang terjadi di Kelas VII SMPIT NURUL FAJRI prilaku yang sesuai yang diharapkan dikelas VII masih ditemukannya mayoritas siswa yang tidak aktif dalam proses pemberian layanan klaskal. Hal ini bisa terlihat dari beberapa aspek diantaranya sedikitnya siswa yang bertanya mengenai materi, siswa yang menjawab pertanyaan, keberanian siswa yang maju ke depan kelas dan saling interaksi antar siswa dalam kelas. Pada saat siswa belajar secara pasif, siswa mengalami proses tanpa ada rasa ingin tahu, tanpa pertanyaan, dan tanpa ada daya tarik terhadap hasil belajar siswa. Pada saat siswa belajar secara aktif, mereka mempunyai rasa ingin tahu terhadap sesuatu, misalnya dengan cara aktif bertanya. Keterlibatan siswa secara aktif dalam pembelajaran sangat diperlukan, sehingga apa yang dipelajari akan lebih bermakna, dan tertanam dalam pikiran siswa. Bentuk penelitian yang dibuat adalah PTBK dan subjeknya adalah siswa kelas VII SMPIT Nurul Fajri dan pengumpulan data diperoleh dari hasil observasi, wawancara dan angket yang disebarkan kepada siswa. Kesimpulan dari penelitian ini, siswa mangalami peningkatan keaktifan siswa dalam megikuti kegiatan pembelajaran atau layanan dengan layanan konseling kelompok. Penulis menyadari masih banyak kekurangan dalam penulisan penelitian ini, untuk itu kritik dan saran nya sangat dibutuhkan sebagai bahan evaluasi dan perbaikan penulis dalam melakukan penelitian.
Peningkatan Omzet Penjualan Produk Hasil UMKM “PEPAYA” dengan Upgrade Packaging Sri Rahayu, Ninik; Rohman, Abdul; Trianasari, Ely; Khairul Muzaka
JPM: Jurnal Pengabdian Masyarakat Vol. 4 No. 4 (2024): April 2024
Publisher : Forum Kerjasama Pendidikan Tinggi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/jpm.v4i4.1838

Abstract

Banyuwangi merupakan kabupaten dibagian paling timur pulau jawa yang terkenal dengan destinasi pariwisata sebelum pandemi covid19, namun pandemi membuat kegiatan pariwisata terpuruk. Pada tahun 2023 ini, Banyuwangi mulai bangkit kembali kegiatan pariwisatanya karena ditunjang oleh menggeliatnya pelaku UMKM yang turut bangkit. UMKM sangat berperan penting dalam pemulihan perekonomian pasca pandemi, oleh sebab itu program - program  terkait UMKM banyak dicanangkan pemerintah pusat dan daerah yang antara lain perijinan, sertifikasi halal dan sebagainya. Namun tidak semua program menyentuh kebutuhan dari UMKM, salah satunya UMKM POKLAHSAR PEPAYA yang berada di Desa Pesucen Kecamatan Kalipuro, Kabupaten Banyuwangi. UMKM ini masih banyak mengalami kendala yang antara lain  permasalah kemasan yang masih sangat sederhana sehingga kurang menarik bagi konsumen. Program Pengabdian Kepada Masyarakat (PKM) ini bertujuan untuk meningkatkan penjualan mitra dengan memperbaiki kualitas kemasan. Kegiatan PKM ini melibatkan mitra, dosen dan mahasiswa Jurusan Teknik Mesin dan Prodi Teknologi Pengolahan Hasil Ternak. Metode kegiatan pengabdian ini adalah melakukan survey untuk mengidentifikasi permasalahan yang dihadapi oleh mitra dan melakukan studi literatur untuk mendapatkan solusi atas permasalahan mitra. Setelah solusi permasalahan mitra didapatkan, langkah selanjutnya melakukan desain kemasan yang menarik guna meningkatkan penjualan produk beserta dengan mesin band sealernya. Hasil dari kegiatan PKM ini adalah kemasan produk yang sangat menarik sehingga dapat meningkatkan jumlah konsumen yang membeli produk dan omzet penjualan meningkat, yang pada akhirnya berimbas terhadap peningkatan kesejahteraan mitra yang beranggotakan Ibu - Ibu rumah tangga.
Comparative Analysis of Essential Oil Profiles From Emprit Ginger Rhizome (Zingiber officinale var. amarum) Grown in Different Locations and Antibacterial Activity Againts Staphylococcus aureus Styawan, Anita Agustina; Purwanto; Susidarti, Ratna Asmah; Windarsih, Anjar; Rohman, Abdul
Indonesian Journal of Tropical and Infectious Disease Vol. 12 No. 2 (2024)
Publisher : Institute of Topical Disease Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ijtid.v12i2.50423

Abstract

Indonesia, as a tropical country, boasts significant biodiversity, particularly regarding its flora and fauna. The country's medicinal plants are one inherited natural resource passed down through generations. The "emprit ginger” (Zingiber officinale var. amarum), a native Indonesian medicinal plant, is often employed in treating various diseases. Scientifically, the primary constituent of emprit ginger is the phenolic ketone homolog compound, gingerol, known for its antioxidant activity. In addition to its antioxidant potential, emprit ginger exhibits potential as an antibacterial agent. However, herbal substances used for therapeutic purposes often yield inconsistent effects due to the fluctuating chemical composition in the plants, typically a result of varying growing locations. These location differences can cause discrepancies in the content of active metabolites. Therefore, data on the chemical profile of medicinal plants is paramount for the standardization process. This study was conducted by obtaining essential oils from the rhizomes of emprit ginger, extracted via steam distillation obtained from various cultivation lands in Ponorogo, Magetan, Pacitan, Wonogiri, Karanganyar, Boyolali, Semarang, Magelang, Purworejo, Temanggung, Wonosobo, Banyumas, Bantul, and Kulonprogo. One of the efforts in standardizing natural materials involves the analysis of their metabolite profiles. The emprit ginger essential oil profile was obtained through Gas Chromatography-Mass Spectrometry (GCMS) testing. The emprit ginger essential oil profile was analyzed using a multivariate calibration of Principal Component Analysis utilizing SIMCA 17 software. Antibacterial activities were assessed using the microdilution method on Staphylococcus aureus bacteria. The analysis of antibacterial activity was determined using the Probit analysis method to ascertain the Minimum Inhibitory Concentration (MIC) 50 value. This study also involved the extraction of essential oils from emprit ginger rhizomes. The individual profiles of these essential oils were determined via Gas Chromatography Mass Spectrometry. The essential oil profiles of emprit ginger were subjected to a multivariate calibration using Principal Component Analysis facilitated by the SIMCA 17 software. Antibacterial activity tests were conducted using the microdilution method on Staphylococcus aureus bacteria. The antibacterial activity was ascertained using probit analysis to derive the Minimum Inhibitory Concentration 50 (MIC 50) values. The highest MIC 50 of emprit ginger rhizome on Staphylococcus aureus bacteria was found in samples from Wonogiri, with a concentration of 0.3408%. Compounds displaying significant discriminative influence on Staphylococcus aureus bacteria included Z-Citral, Geranyl acetate, Zingiberenol, Beta-Myrcene, (1S0-2,6,6-Trimethylbicyclo [3.1.1] hept-2-ene, and Bicyclo [2.2.1]heptan-2-ol, 1,7,7-trimethyl, exo-(CAS)
Rancang Bangun Alat Germicidal Pembersih Virus Covid 19 di Udara Dengan Aliran Meander Dan Variasi Laju Udara Putra, Riki Candra; Rohman, Abdul
ROTASI Vol 26, No 1 (2024): VOLUME 26, NOMOR 1, JANUARI 2024
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/rotasi.26.1.69-77

Abstract

Masa pandemi di Indonesia sudah berakhir dan saat ini masyarakat diberikan kebebasan untuk bersosialisasi lebih dekat, hal ini memungkinkan penyebaran virus covid 19 semakin meluas lagi meskipun masyarakat sudah diberikan vaksin. Penyebaran virus covid 19 dan mikroorganisme lainnya di udara perlu dikendalikan terutama pada ruangan tertutup yang berisi berbagai aktivitas manusia dengan menggunakan alat germicidal lampu UVC. Dengan menggunakan alat germicidal dengan sistel aliran meander dimungkinkan proses paparan sinar UVC ke virus menjadi lebih lama di dalam alat sehingga virus menjadi lebih cepat mati. Dengan bentuk aliran yang lebih kecil di dalam alat germicidal yang tertutup, bentuk aliran udara diharapkan menjadi lebih seragam. Dengan menggunakan tegangan yang berbeda yaitu 6 volt dan 12 volt didapat kecepatan aliran udara yang berbeda-beda karena adanya perbedaan besaran nilai antara kipas inlet dan outlet dengan suplai tegangan dari adaptor yang menghasilkan perbedaan rpm antara kipas inlet dan outlet yaitu kecepatan udara pada tegangan 6 volt memerlukan 13 kali sirkulasi udara untuk keluar masuk ke dalam alat sedangkan pada tegangan 12 volt memerlukan 23 kali sirkulasi untuk mendapatkan efektivitas pembasmian virus selama 30 detik. Aliran udara di dalam alat disimulasikan dengan menggunakan asap berwarna agar terlihat pergerakan udara dengan kondisi kaca akrilik yang masih bening atau belum tertutup oleh lapisan stiker. Setelah alat diuji, kotak dilapisi stiker berwarna untuk menjaga sinar UVC tidak terpapar keluar saat kipas dan lampu UVC dinyalakan.
SEJARAH PEMIKIRAN PENDIDIKAN KH. TB. ACHMAD CHATIB DI BANTEN (1948-1966) Rohman, Abdul; Wibowo, Tubagus Umar Syarif Had; Maryuni, Yuni
JEJAK : Jurnal Pendidikan Sejarah & Sejarah Vol. 3 No. 1 (2023): Kajian Sejarah dan Pembelajaran Sejarah
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jejak.v3i1.23702

Abstract

Penelitian ini bertujuan untuk mengetahui terkait sejarah pemikiran pendidikan KH. TB. Achmad Chatib di Banten pada tahun 1948-1966. Metode yang digunakan dalam penelitian ini adalah metode sejarah, yang meliputi heuristik, kritik, interpretasi, dan historiografi. Hasil penelitian ini menunjukan bahwa saat memperjuangkan kemerdekaan Indonesia, terjadi perlawanan militer, perlawanan keagamaan, dan pemikiran. Salah satu tokoh pejuang dan ulama di Banten yaitu KH. TB. Achmad Chatib yang merupakan residen (gubernur) pertama di Banten setalah Indonesia merdeka, peran KH. TB. Achmad Chatib pada masa kolonialisme berupaya menciptakan nilai nasionalisme pemuda Banten. Perjuangannya tidak hanya dilakukan melalui perjuangan fisik, tetapi beliau juga berjuang melalui pemikiran khususnya dalam bidang pendidikan. Dalam bidang pendidikan KH. TB. Achmad Chatib menggagas buah pikiran yang diimplementasikan dalam wujud lembaga pendidikan. 1) Masarratul Muhtajin yaitu lembaga pendidikan yang bergerak dibidang nonformal untuk mengembangkan ilmu keagamaan, 2) Masarratul Muta’allimin yaitu lembaga pendidikan yang bergerak dibidang formal untuk mengembangkan ilmu pengetahuan umum, 3) Masarratut Tanjih yaitu lembaga sosial masyarakat untuk menjaga dan merawat peninggalan kesultanan Banten.
Analysis of Curcumin Contents in Curcuma xanthorrhiza using FTIR Spectroscopy and HPLC-UV in Combination with Multivariate Calibration Kusumadewi, Awal P.; Mujahid, Rohmat; Martien, Ronny; Purwanto, Purwanto; Styawan, Anita A.; Irnawati, Irnawati; Rohman, Abdul
Majalah Obat Tradisional Vol 28, No 3 (2023)
Publisher : Faculty of Pharmacy, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/mot.82220

Abstract

Curcuma xanthorrhiza Roxb. or Java Turmeric with the local name of Temulawak is one of herbal medicines used in Indonesia. This plant is believed to prevent some degenerative diseases due to its active compounds, especially curcumin (CUR) contained in Java Turmeric. Therefore, analysis of active components including CUR is very urgent. This study highlighted the development of FTIR spectroscopy coupled with PLSR for the determination of CUR in Java Turmeric powders. The levels of CUR in Java Turmeric powders were determined using HPLC with UV detectors, and the obtained results were used as actual values to be predicted using FTIR spectroscopy-multivariate calibrations. The results revealed that the levels of CUR ranged from 0.6741 ± 0.0705% (g/100 samples) to 2.1062 ± 0.0095%. PLSR modeling for the relationship between the actual value of CUR as determined using HPLC and calculated values as predicted using FTIR spectroscopy provide the value of R2 of 0.9990 with RMSEC of 0.0028. The developed method offers reliable results providing a green analytical method due to the use of minimum solvent and reagent and does not involve extensive sample preparation.
Using Macroscopic, Microscopic, and FTIR Spectroscopy combined with Chemometrics to Authenticate Arabica Coffee from Antbush Fernando, David; Santosa, Djoko; Rohman, Abdul
Majalah Obat Tradisional Vol 29, No 1 (2024)
Publisher : Faculty of Pharmacy, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/mot.85039

Abstract

Limited coffee stocks, high consumption, export demands, and increasing prices may contribute to counterfeiting. In other countries, including India and Africa, coffee forgery using antbush has been extensively established. Due to its abundance in Indonesia, unscrupulous coffee growers allegedly employ antbush (Senna occidentalis) as an adulterant in coffee to increase commercial earnings. This study aims to authenticate coffee from antbush using macroscopic and microscopic differences and FTIR spectroscopy combined with chemometrics. The arabica coffee samples from various regions were oven-roasted to a second crack and milled. The materials were then examined under macroscopic, microscopic, and infrared spectroscopic conditions. The obtained responses were used to monitor the qualitative and quantitative information in the targeted samples. Antbush in coffee samples is successfully identified microscopically by remnants of palisade tissue as well as the structural differences of the endosperm. In addition, FTIR spectroscopy combined with multivariate calibration can accurately estimate the concentration of antbush as adulterants in the target sample. Principle component regression (PCR) provides the best modeling for the relationship between the actual value. FTIR predicted the value of antbush with the lowest RMSEC and RMSEP values of 0.852 and 0.896, respectively, with the coefficient of determination (R2) in calibration and validation models of 0.9996 and 0.9967, respectively. The combination of macroscopic, microscopic, and FTIR spectroscopy offered reliable tools to authenticate arabica coffee from antbush.
Engine Performance Testing and Fuel Consumption of Unmanned Aerial Vehicle with Octane Rating Variations Kusumoaji, Danartomo; Hartono, Hartono; Rohman, Abdul; Yunus, Meila Filhasni
Computational And Experimental Research In Materials And Renewable Energy Vol 6 No 2 (2023): November
Publisher : Physics Department, Faculty of Mathematics and Natural Sciences, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/cerimre.v6i2.43757

Abstract

Unmanned aerial vehicles or often known as Drone / UAV are used for various missions, some of which are for aerial photography, monitoring, load testing, spraying fertilizers and so on. The performance of unmanned aircraft is supported by several aspects, one of which is the propulsion or engine of the aircraft. The Aeronautical Technology Research Center, BRIN, Indonesia has several series of unmanned aerial vehicles used for several missions. To support the missions that must be taken by unmanned aircraft, engine performance is one of the important factors for carrying out missions. In this study, engine testing will be carried out to see the performance of the engine by varying the octane rating of the fuel used. This test used an LSU-04 aircraft engine with a 3W-110i B2 engine type with a capacity of 110 cc and a propeller size of 26x8. Engine tests were carried out using 3 types of fuel with octane ratings of 92, 95 and 98. The data taken is engine speed data (rpm), thrust data and fuel consumption data. Tests and measurements were carried out at the highest rpm value of 6000 rpm and the test was carried out for 1 hour. From the test results, the results were obtained that the performance of the engine that has the largest thrust value is the one that uses fuel with an octane rating of 92, namely with a thrust value of 14.13 kgf, while the thrust value for fuel with an octane rating of 95 is 13.35 kgf, and the thrust produced in fuel with an octane rating of 98 is 13.06 kgf. Then from the results of measuring fuel consumption, the most economical value is an engine that uses fuel with an octane rating of 98, which consumes 1007 ml of fuel, while for fuel consumption with an octane value of 95 of 1028 ml and for an octane value of 92 of 1061 ml.Keywords: UAV, 3W-110i B2 Engine, 92 Octane, 95 Octane, 98 Octane, Engine Performance
Co-Authors -, Sutriyanto Abda Abda Abdillah, David Fahmi Abdul Aziz Abdul Ghofar Abdul Majid Abdul Rahman Abdullah Abdullah Abdullah Zainur Rouf Abner Hamonangan, Jefri Abu Bakar, Nor Kartini Achlami HS., MA. Achmad Fudholi Achmad Hidayatullah, Achmad Achmad Tarmizi Achmad Wildan Kurniawan, Achmad Wildan Ade Pratama Adhistya Rizky Bestari Agung Endro Nugroho Agung, RM. Hasbi Pratama Arya Agus Wiyono Agustin, Niyar Candra Agustina Styawan, Anita Agustinus Yuswanto, Agustinus Ahmad Ahmad Ahmad Kholil Ahmad Muthohar Ahmad Nurkhin Ahmad Saifulloh Ahmad Tafsir, Ahmad Ahmad Taufiq AIDA SYARIF Akbar, Muhammad Robbani Akbar, Tarmizi Akmala, Shafira Alan Prahutama Ali Djamhuri Ali Maksum Ali Murtadho Aliem Sudjatmiko ALMonawer, Faisal Hamad Amal Fathullah Zarkasyi Ambo' Dalle, Abd. Rahman Amdi Noviwijaya Amin Amin Amin Ana Mufarida, Nely Ana Tsalitsatun Ni'mah Andi Suhendi Andri Prisda Tyaka Andria Arisal, Andria Andryani, Putu Cisya Anggita Rosiana Putri Anggra, Fiveriati Anggraini, Lala Anggriani, Firhani Anief Rufiyanto Antariksih, Daisy Dwijati Kumala Ratna Anthony, Aurelia Rayhandita Anwar Hartanto, Mastu Any Guntarti Arbain Arbain, Arbain Archanti, Amelia Rachma Arianto, Fery Arief Aditya, Satria Arief Nurrochmad Arieff Salleh Rosman Arifton, Arifton Arini, Rien Larasati Ariwiyono, Nopem Ariyanto Setyawan ASPAHANI ., ASPAHANI Astuti, Rini Widya Astutik, Endang Puji Audi, Moch. Julian Rizqy Auliasari, Yasmin Awidarta, Kevin Azizah, Ansatul Bahari, Fadhil Achmad Agus Bali Geroda , Godefridus Bali Geroda, Godefridus Bambang Antoko Bambang Setiadi Bin Cecep Mustopa, Rodhi Hakiki Bisono, Widyatmaja Wendra Brantasari, Mahkamah Briliany, Ghina Khoirunisa Budi Haryanto Budi Setiawan Budiman, Anton Indra Burhanuddin Burhanuddin Butlam, Qoree Cahyaningrum Giyanto, Sinta Cahyaningrum, Safira Candra, Riki Candri Candri Chairul Anam, Chairul Chandrawati, Titi Chrisnawati, Venny Christian Wiradendi Wolor Churrahman, Taufik Dachriyanus Dachriyanus Daniel Happy Putra Daspar Daspar Dedi Kuswandi Dedi Rahman Nur Defriono , Ilham Deik, Mohammad Dewi, Suryani Kurnia Diah, Yuliansyah M Dian Alan Setiawan Dias Indrasti Didit Haryadi Dikha Anugrah Dinafa, Aya Sofia Dinar, Dinar Djoko Santosa Djoko Susanto Djoko Wahyono Doddy Aditya Purnomo Dwinta Mulyanti Dyah Ayu Widyastuti Dzul Rachman, Dzul Edi Mulyadi Edi Pramono Efriandy, Iwan Eko, Rochmad Ela Sartika Ela Suryani Elfayang Rizky Ayu Puspitasari, Elfayang Rizky Elis Puspitasari Ely Trianasari Endang Lukitaningsih Endro Unugroho, Agung Ermadiani, Ermadiani Erni Wijayanti, Erni Fa'atin, Salmah Fabian Fadhly Jambak Fachrurrozie Fahrur Rozi Fajar A. 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