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PENGARUH JUMLAH TRAY DAN REFLUKS KOLOM DISTILASI PADA PROSES PURIFIKASI METANOL Rahman, Muhammad
CHEMTAG Journal of Chemical Engineering Vol 4, No 2 (2023): CHEMTAG Journal of Chemical Engineering
Publisher : Universitas 17 Agustus 1945 (UNTAG) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56444/cjce.v4i2.4347

Abstract

Metanol merupakan salah satu energi alternatif yang dapat diperbaharui serta untuk menurunkan ketergantungan terhadap energi fosil di indonesia. Metanol memiliki sifat fisis tidak berwarna, mudah menguap atau volatil, mudah terbakar, dan memiliki bau yang khas. salah satu cara untuk memproduksi metanol yaitu dengan proses hydrotreating. Namun, Metanol yang diproduksi dari reaktor hydrotreating memiliki konsentrasi rendah. sehingga perlu adanya proses distilasi. Kolom distilasi digunakan untuk melakukan proses distilasi. dengan jenis tray yaitu bubble cap tray. Pada penelitian ini dilakukan 8 kali percobaan yaitu distilasi tanpa refluks dan distilasi menggunakan refluks. Percobaan ini dilakukan dengan jumlah variasi Tray yang berbeda yaitu 1, 2, 3 dan 4. Setiap percobaan menggunakan 10 L Metanol dengan Temperatur Umpan 65℃. temperatur kondensor 20℃ serta temperatur refluks 20℃. Waktu operasi setiap variasi adalah 60 menit. Hasil Penelitian menunjukkan bahwa kondisi terbaik untuk distilasi metanol adalah distilasi dengan menggunakan refluks dengan variasi tray berjumlah 4. analisa karakteristik distilat berupa metanol yaitu viskositas 0,5599 mPa.s, densitas 0,7961 gr/cm3, Nilai kalor 5625,8322 Cal/gr, Titik nyala 25,3 °C, menurut hasil analisis produk metanol yang dihasilkan memenuhi standar American Society for Testing and Material yaitu ASTM-D115220.
Hadis Tentang Takdir Perspektif Sunni dan Syiah Ayatullah, Ayatullah; Kurnia Agus Malia Putri; Sakti Hanusa Bhakti, Al Furqon; Ma'ali, Romi; Rahman, Muhammad
Journal of Applied Transintegration Paradigm Vol. 4 No. 2 (2024): Journal of Applied Transintegration Paradigm
Publisher : LPPM UIN Sulthan Thaha Saifuddin Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30631/vpzs2h58

Abstract

Penelitian ini bertujuan untuk membandingan hadis takdir melalui pandangan Sunni dan Syi'ah mengenai konsep taqdir dalam Islam, dengan bersumber pada hadis-hadis yang relevan dari kedua mazhab, yaitu hadis sunni berdasarkan Kitab Shahih Bukhari dan Shahih Muslim Sedangkan Syi’ah Berujuk Pada Kitab Al-Kafi Al-Kulaini. Sunni dan Syiah adalah dua kelompok dalam Islam yang selain Al-Qur'an, juga menjadikan kitab-kitab hadis sebagai pedoman utama. Namun, mereka sering menghadapi kesulitan dalam berkomunikasi karena perbedaan dalam pengembangan dan penilaian kualitas hadis. Sehingga menimbulkan bagaimana pemahaman hadis-hadis sunni dan syi’ah dalam mebandingkan taqdir? Artikel ini mengeksplorasi cara Sunni dan Syi'ah memahami serta menerapkan konsep tersebut, serta dampak perbedaan dalam penekanan dan interpretasi terhadap pemahaman umat Islam secara umum. Penelitian ini menggunakan metode deskriktif analisis dengan pendekatan kualitatif untuk menggali makna. Yang melibatkan penggunaan berbagai jenis literatur, khususnya buku-buku, sebagai sumber utama informasi. Hasil penelitian ini yaitu baik Sunni maupun Syiah sepakat bahwa Allah memiliki pengetahuan mutlak dan kekuasaan atas segala sesuatu, namun pendekatan dan penekanan pada peran manusia dalam menentukan takdir mereka bervariasi di antara keduanya.
Pemikiran Muhammad Asad tentang Negara Islam Rahman, Muhammad
Syams Vol 4 No 2 (2023): Syams: Jurnal Kajian Keislaman
Publisher : Faculty Ushuluddin, Adab, and Dakwah Institut Agama Islam Negeri (IAIN) Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23971/js.v4i2.9932

Abstract

This research was conducted to find out how Muhammad Asad'sperspective on the concept of Islamic government as a reflection of the formation of theIslamic State of Pakistan. The form of government system in Islam as an idealsystem among the Ummah, of course, has different views. As was the case whenPakistan officially broke away from India and became independent in 1947. At thebeginning of the journey as a new country, many debates took place betweenintellectuals or nationalists and religious people or ulama. Each group agreed tomake Islam the hallmark of the State of Pakistan, but the difference in views thatoccurred was when the Nationalists proposed Islam as the hallmark of the state butthe laws and style of government followed the West. Of course, this was opposed bythe ulama who wanted Islam to be the whole foundation of the state as the purpose ofthe establishment of Pakistan from the beginning. The problem occurred partlybecause an influential figure in the formation of Pakistan died one year afterindependence. So this made Pakistan's immature state as a new country, ambiguous.On the other hand, several Muslim intellectuals were present to help the developmentof the Islamic State of Pakistan, such as Leopold Weiss or Muhammad Asad. Thisresearch is a library research that uses the historical method, with four stages, namelyfirst, heuristics by collecting several sources, both primary sources and secondarysources. Then second, source verification by conducting external criticism and internalcriticism. Third, interpretation by interpreting or by analyzing some of the sourcesobtained. And finally, historiography, namely d by writing down the results of theresearch that has been obtained. The results showed that Muhammad Asad in someof his works showed the concept he gave about the Islamic government system. Thenthrough the concept he put forward also influenced the formation of the Islamic Stateof Pakistan. Despite being a Mualaf, Asad was able to explore Islam and love allthings related to Islam. In addition to contributing to the concept of Islamicgovernment used in Pakistan, Asad also did a lot of Hadith interpretation to provideconcepts of thought on education and gender. So that Muhammad Asad has animportant role in Pakistan, especially during the formation of the State.
PENYULUHAN PENGGUNAAN PETA DESA MENGGUNAKAN UNMANNED AERIAL VEHICLE (UAV) DI KECAMATAN CIMENYAN, KABUPATEN BANDUNG Lumban Raja, Denny; Rikmayanthi Kirana, Fidela; Finlandini, Nadya; Rahman, Muhammad; Avrio Simatupang, Christopher; Aditya, Reinaldy
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 6 No 1 (2024): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jamin.v6i1.18557

Abstract

Creating a village map is essential for regional development planning. However, it can be costly and time-consuming. The purpose of community service is to map the area around Mandalamekar Village, Cimenyan District, Bandung Regency, as one of the supporting documents for village planning based on disaster mitigation. The scope of this community service activity includes field data acquisition, such as creating flight paths and aerial photography using UAV vehicles, as well as data processing, including ortho mosaic, digitizing maps, and spatial analysis. The community service activity will produce an Aerial Photo Image Map and Land Use Map of Mandalamekar Village, both of which will be created at a scale of 1:5000. The output from the Community Service activity can be utilized for village development planning based on disaster mitigation. Furthermore, training on drone operation and processing has been conducted with the expectation that employees of Mandala Mekar Village can utilize drone technology. The feedback from the survey suggests that the Community Service activity is aligned with the users' requirements and has the potential to offer solutions for Mandala Mekar Village.
IMPLEMENTASI ALGORITMA CONVOLUTIONAL NEURAL NETWORK (CNN) UNTUK IDENTIFIKASI KUALITAS TANAMAN SELADA BERDASARKAN CITRA DAUN Rahman, Muhammad
Jurnal Informatika dan Teknik Elektro Terapan Vol. 11 No. 3s1 (2023)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v11i3s1.3368

Abstract

Indonesia dikenal sebagai negara agraris hal ini menjadikan sebagian penduduk bekerja pada sektor pertanian menurut Badan Pusat Statistik tahun 2022 sekitar 29,96% penduduk Indonesia bekerja pada sektor pertanian. Bertani pada saat ini bisa dilakukan dengan hidroponik yaitu bertanam dengan air yang tercampur nutrisi sebagai media tanamnya. Selada merupakan sayuran yang cocok ditanam secara hidroponik, selada memiliki kandungan gizi dan fungsi yang baik bagi tubuh dalam mencegah penyakit kolesterol tinggi, sembelit, dan insomnia. Walaupun bertanam secara hidroponik mudah dan praktis akan tetapi kendala dapat saja terjadi sehingga mempengaruhi kualitas tanaman yang disebabkan oleh faktor seperti lingkungan dan kurangnya pengetahuan akan kondisi tanaman selada sehingga memicu tanaman terserang penyakit. Dalam mengatasi hal tersebut dibuat sistem klasifikasi kualitas tanaman selada berdasarkan citra daun selada untuk mengetahui kondisi tanaman menggunakan algoritma convolutional neural network dengan merancang arsitektur model yang terbaik. Hasil akurasi terbaik didapatkan pada pembagian dataset 80% training, 10% validation, dan 10% testing dengan penambahan dropout setelah maxpooling lapisan kedua dan ketiga sebesar 0.2 dan dropout pada fully connected layer 0.3, optimizer Adam dengan learning rate 0.0001. Pada proses pelatihan akurasi mencapai 90% pada epoch ke-50 kemudian dilakukan evaluasi menggunakan confusion matrix dengan memasukan data testing dengan akurasi terbaik yang didapatkan mencapai 84%.
THE CONCEPT OF LEGAL CERTAINTY REGULATION OF CSR PROVISION FOR THE WELFARE OF THE PEOPLE BASED ON LAW NUMBER 40 OF 2007 ON LIMITED LIABILITY COMPANIES Rahman, Muhammad; Fahmi, Sudi; Bagio, Bagio
EKSEKUSI Vol 6, No 1 (2024): Eksekusi : Journal Of Law
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/je.v6i1.28407

Abstract

There is a legal vacuum related to the non-regulation of sanctions for companies that do not implement CSR/implement it but do not comply with legal provisions. Both in Law Number 40 of 2007 concerning Limited Liability Companies and regulations at the regional level. Such conditions mean that the realization of people's welfare as the goal of providing CSR cannot be fulfilled. The aim of this research is to analyze the concept of regulating legal certainty in providing CSR for the welfare of the people; To formulate the ideal concept of regulating legal certainty for providing CSR. This type of research is normative legal research. The approach used is a statutory, concept and case approach with qualitative analysis methods. The results of the research show that Firstly, the concept of regulating legal certainty for providing CSR for welfare based on Law Number 40 of 2007 concerning Limited Liability Companies does not provide legal certainty, as do the derivative regulations at the regional level, especially in Berau Regency, Kampar Regency, Semarang City, Kota Pematang Siantar and the Special Region of Yogyakarta, which have not yet explicitly regulated sanctions for companies that have not implemented CSR for the community or these companies have implemented CSR for the community but the implementation has not complied with the legal provisions governing CSR itself. The impact is that the provision of CSR by the company to the community around the company has not provided welfare for the community. Second, the ideal concept of regulating legal certainty in providing CSR for the welfare of the people based on Law Number 40 of 2007 concerning Limited Liability Companies, is the concept of regulating derivative regulations at the regional level, namely regulations as in Aceh Besar Regency Qanun Number 9 of 2019 concerning Social Responsibility and Company environment; as well as Siak Regency Regional Regulation Number 1 of 2013 concerning Corporate Social and Environmental Responsibility which regulates legal sanctions against companies that have not implemented CSR for the community or the company has implemented CSR for the community but the implementation has not complied with the legal provisions governing CSR itself. This ideal concept has demonstrated the success of implementing CSR for the community around the company so that people's welfare can be achieved through the CSR program..Keywords: CSR, People, Limited Liability Company.
Perancangan Aplikasi I-Search Menggunakan Model Waterfall Untuk Manajemen Data Aset Perusahaan Rahman, Muhammad; Purnomo, Azis; Wahyono, Tri; Suryani, Indah
JAIS - Journal of Accounting Information System Vol. 2 No. 1 (2022): Juni
Publisher : LPPM Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/jais.v2i01.1375

Abstract

Manajemen data aset sangat berguna untuk dapat menghasilkan informasi aliran aset yang terdiri daribanyak aset beserta biayanya, bagaimana pemakaian, kondisi dan pemeliharaan serta lokasi penyimpanannya. Data aset yang dikelola dengan baik tentu akan sangat membantu bagi pihak perusahaan dalam menentukan kebijakan pengadaan dan monitoring aset perusahaan. Namun secara umum perusahaan masih banyak yang belum terkomputerisasi dan masih menggunakan pencatatan data aset secara manual. Hal ini tentunya dapat menghambat proses pengadaan dan monitoring terhadap aset yang ada di suatu perusahaan. Maka dari itu diperlukan suatu sistem terkomputerisasi berupa aplikasi manajemen data aset yang mampu memberikan efektifitas dan efisiensi dalam menghasilkan informasi aliran data aset di perusahaan. Dan aplikasi I-Search ini dirancang untuk dapat memberikan informasi yang efektif, efisien dan lengkap mengenai aliran data aset pada perusahaan. Adapun model yang digunakan dalam pengembangan perangkat lunak pada aplikasi ini adalah model waterfall. Model ini dipilih karena sesuai dengan karakteristik aplikasi yang akan dirancang dan kemudahan dalam setiap prosesnya. Dalam pengujian perangkat lunak ini digunakan metode blackbox testing untuk menguji validitas aplikasi yang dirancang. Dengan adanya aplikasi I-Search sebagai suatu sistem informasi dalam pengelolaan data aset yang berbasis web ini diharapkan mampu memberikan kemudahan, efektifitas dan efisiensi dalam pengelolaan data aset sehingga menghasilkan informasi data aset yang cepat, tepat dan akurat.
Peran Kepala Sekolah Dalam Meningkatkan Pendidikan Berkualitas Di SMA Bintang Langkat Tahun Ajaran 2024-2025 D, Hamidah; Faqrurrowzi, Lendra; Rahman, Muhammad
Continuous Education: Journal of Science and Research Vol. 6 No. 3 (2025)
Publisher : Pusdikra Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51178/ce.v6i3.2770

Abstract

Penelitian ini bertujuan untuk memahami bagaimana peran kepala sekolah berkontribusi terhadap peningkatan mutu pendidikan di SMA Bintang Langkat. Penelitian ini menggunakan metode kualitatif dengan teknik pengumpulan data melalui observasi, wawancara, dan dokumentasi. Hasil penelitian ini menunjukkan bahwa kepala sekolah SMA Bintang Langkat telah memberikan kontribusi yang signifikan terhadap peningkatan mutu pendidikan melalui kepemimpinan visioner, pengelolaan sumber daya yang efektif, dan peningkatan profesionalisme guru. Kepala sekolah juga terlibat dalam menciptakan lingkungan sekolah yang ramah dan mendukung pembelajaran. Penelitian ini menyimpulkan bahwa peran kepala sekolah sangat penting dalam peningkatan mutu pendidikan di SMA Bintang Langkat.
Analysis of the Application of Management Accounting on Production Cost Efficiency at PT Indofood Sukses Makmur Tb Nibros, Aliffia Rosada; Salamah, Afifah Puti; Ermawati, Dina Era; Rahman, Muhammad; S, Sukamah; Utami, Sri; Lesmana, Hendra
Socius: Jurnal Penelitian Ilmu-Ilmu Sosial Vol 3, No 4 (2025): November
Publisher : Penerbit Yayasan Daarul Huda Kruengmane

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.17667432

Abstract

This study examines the application of management accounting practices in improving production cost efficiency at PT Indofood Sukses Makmur Tbk, one of Indonesia’s largest consumer goods manufacturers. Using a qualitative descriptive approach, the research analyzes secondary data derived from annual and financial reports from 2022–2025. The study explores the implementation of budgeting, variance analysis, flexible budgeting, responsibility accounting, and Activity-Based Costing (ABC) as key instruments for cost control. Findings show that Indofood has adopted management accounting techniques comprehensively to monitor production activities, allocate resources efficiently, and identify cost deviations. Although total production costs increased annually, the rate of increase declined, indicating improved cost efficiency supported by more accurate cost measurement and strengthened cost-control mechanisms. The company’s ability to align actual costs below budgeted amounts further reflects effective managerial oversight. Overall, the application of management accounting significantly contributes to optimizing material usage, labor, and overhead expenses, while enhancing operational decision-making. The study recommends continuous evaluation of cost variance and encourages future research using primary data to provide deeper insights into the strategic role of management accounting in production efficiency.
EXPLORING THE INFLUENCE OF RESILIENCE AND CAREER ORIENTATION ON THE CAREER READINESS EXPERIENCES OF TRAINEES AT LKP ANANDA PERKASA MULIA Rahman, Muhammad
JURNAL ASIK Vol 3 No 3 (2025): JURNAL ASIK: Jurnal Administrasi, Bisnis, Ilmu Manajemen, & Kependidikan
Publisher : BAIK Publishers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59639/asik.v3i3.124

Abstract

This qualitative study explores how resilience and career orientation influence the career readiness experiences of trainees at LKP Ananda Perkasa Mulia. Career readiness is vital for successful transition from vocational training to employment, yet the psychological factors supporting readiness are understudied in vocational contexts. Data were collected through in-depth interviews and analyzed using thematic analysis to capture trainees’ coping strategies, motivation, and career goal-setting behaviors.Findings reveal that resilience enables trainees to overcome challenges, maintain motivation, and adapt positively to setbacks, while career orientation provides clear direction and purpose in career planning. The interplay of these factors cultivates a comprehensive readiness characterized by optimism, adaptability, and strategic engagement. Institutional support also plays a critical role in facilitating psychological competence development. The study contributes to vocational education literature by emphasizing the combined importance of resilience and career orientation in preparing trainees for workforce demands. Recommendations include integrating resilience training and career guidance into vocational programs to enhance holistic career readiness.