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All Journal ComEngApp : Computer Engineering and Applications Journal Jurnal Teliska Jurnal Ilmu Teknik Jurnal Ilmu Produksi dan Teknologi Hasil Peternakan Turbo : Jurnal Program Studi Teknik Mesin Jurnal Pengabdian Masyarakat AbdiMas IHiS (Indonesian Historical Studies) Journal of Educational Research and Evaluation JOLLT Journal of Languages and Language Teaching International Journal of Research in Vocational Studies (IJRVOCAS)
A. Rahman
Fakultas Peternakan, Universitas Jambi Jl. Jambi-Ma. Bulian KM1. 5 Mendalo Darat Jambi 36361
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APLIKASI REGRESI LINIER DALAM METODA DECLINE CURVE UNTUK MEMPREDIKSI POTENSI MINYAK LAPANGAN SRIWIJAYA LAPISAN X PT.PERTAMINA ASET 1 FIELD JAMBI Putri, Dwi Ayu; Rahman, A.; Syarifudin, Syarifudin
Jurnal Ilmu Teknik Vol 2, No 1 (2014)
Publisher : Sriwijaya University

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Abstract

Metode kurva penurunan produksi (decline curve) digunakan untuk menentukan cadangan hidrokarbon suatu reservoir (lapangan). Metode ini menggunakan analisa regresi linier untuk menentukan persamaan/fungsi dari masing-masing decline curve yang diperoleh dari data laju produksi, waktu produksi, dan kumulatif produksi. Persamaan yang digunakan untuk menghitung total cadangan (ultimate recovery), umur produksi (life time production), dan sisa cadangan (remaining reserves) adalah persamaan yang memenuhi kriteria uji statistik dengan nilai koefisien determinasi (R2) yang paling besar dan nilai standar deviasi (SD) yang paling kecil. Hasil yang diperoleh dari hasil uji statistic adalah jenis kombinasi antara exponential decline curve dan harmonic decline curve untuk Blok IA, Blok IB, Blok II, dan Blok III. Hasil perhitungan didapatkan ultimate recovery untuk Blok IA sebesar 1.588.931 bbl, Blok IB sebesar 291.910 bbl, Blok II sebesar 179.040 bbl, dan Blok III sebesar 95.149 bbl; remaining reserves untuk Blok IA sebesar 713.342,6 bbl, Blok IB sebesar 134.521 bbl, Blok II sebesar 54.131 bbl, dan Blok III sebesar 56.149 bbl; dan umur produksi untuk Blok IA sebesar 107 bulan atau 8,9 tahun, Blok IB sebesar 95 bulan atau 7,9 tahun, Blok II sebesar 71,5 bulan atau 6 tahun dan Blok III sebesar 31,6 bulan atau 2,6 tahun.Kata kunci : decline curve, ultimate recovery, life time production, remaining reserves.
KAJIAN TEKNIS SISTEM PENIRISAN TAMBANG BANKO BARAT GUNA MENANGGULANGI DAN MENGOPTIMALISASI SISTEM PEMOMPAAN AIR TAMBANG DI PIT III BARAT PT BUKIT ASAM (PERSERO) TBK TANJUNG ENIM Putra, Oka Lingga; Iskandar, Hartini; Rahman, A.
Jurnal Ilmu Teknik Vol 2, No 4 (2014): Jurnal Ilmu Teknik
Publisher : Sriwijaya University

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Abstract

PTBA Tanjung Enim melakukan kegiatan penambangan dengan sistem tambang terbuka, yang menggunakan metode strip mine sehingga akan terbentuk cekungan. Metode penirisan pada Pit III Barat merupakan metode open sump, yaitu dengan menempatkan sump pada dasar tambang yang berfungsi untuk menampung seluruh air limpasan, kemudian di pompakan menuju ke kolam pengendapan lumpur. Berdasarkan kondisi suhu yang terjadi sekarang kerena mengalami global warming untuk waktu periode ulang hujan bisa diambil lebih singkat dengan periode ulang hujan 5 tahun atau bisa dengan 2 tahun. Sistem pemompaan ini mengguanakan dua unit pompa yaitu dua buah pompa KSB 250 kW (Listrik). Berdasarkan perhitungan diperoleh effisiensi aktual pompa berkisar 63%. Dari kedua pompa aktual hanya mampu mengeluarkan air sebesar 213.792 m3/bulan. Berdasarkan periode ulang hujan 5 tahun dengan debit air yang masuk sebesar 448.416 m3/bulan dan untuk berdasarkan periode ulang hujan 2 tahun dengan debit air yang masuk sebesar 375.552 m3/bulan.Optimalisasi pemompaan dapat dilakukan dengan mengubah sistem instalasi yang ada yaitu dengan mengganti ukuran pipa DN 400 dengan pipa DN 300 dan memperpendek penggunaan pipa DN 200 dengan tujuan untuk mengoptimalisasi kerja pompa dengan mengurangi tekanan pompa pada saat pompa beroperasi.Kata Kunci : Curah Hujan, Debit, Sump, Pompa
The Implementation of Strengthening Character Education Program through Scouts Extracurricular Activities in Islamic Senior High School 1 Pulang Pisau and Islamic Senior High School of Palangkaraya Rahman, A.; Wasliman, I.; Hanafiah, Hanafiah; Iriantara, Y.
Journal of Education Research and Evaluation Vol 5, No 4 (2021): November
Publisher : LPPM Undiksha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jere.v5i4.32858

Abstract

Noble character education for Islamic Senior High School (MAN) students is considerably related to school management. The management refers to how the noble character building is planned, implemented, and controlled by empowering the whole resources of the school and is reflected in the educational activities in the school. This research aims to discover the strengthening noble character education program of MAN students. In addition, it also examines the implementation and the impacts of strengthening noble character education programs of MAN students. This research applied a qualitative research method to conduct a case study in Islamic Senior High School 1 Pulang Pisau and Islamic Senior High School Palangkaraya. Eventually, this research identified that (1) the strengthening noble character education program of MAN students through Scouts extracurricular activities have not been implemented properly; despite the SOP of each activity, (2) the implementation of the strengthening noble character education programs of MAN students through Scouts extracurricular activities have not reached proper service quality due to the assessment system, (3) the impacts of the implementation of the strengthening noble character education program of MAN students through Scouts extracurricular activities have achieved the objectives; nevertheless, the impacts can only be monitored when the students are in the school.
MONITORING DAN EVALUASI PROGRAM KJP PLUS WILAYAH JAKARTA TIMUR PROVINSI DKI JAKARTA TAHUN 2018 Rachmat, Ikbal; Rahman, A.; Sumartono, Sumartono; Humaira, Sahira
Jurnal Pengabdian Masyarakat AbdiMas Vol 5, No 4 (2019): Jurnal Pengabdian Masyarakat Abdimas
Publisher : Universitas Esa Unggul

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47007/abd.v5i4.2797

Abstract

AbstractMonitoring and Evaluation of KJP Plus is carried out as a Community Service (P2M) activity that is established between the Communication Sciences faculty of Esa Unggul University and the Provincial Government of DKI Jakarta, with the aim of conducting verification in the form of data deepening to various parties related to KJP Plus activities from the SD level , Junior high, high school, to the neighborhood where the student / i is concerned. Monitoring and evaluation activities are carried out using a qualitative approach using survey design with the aim of descriptive and non-participatory observation through interviews, with sampling techniques, stratified random sampling of KJP Plus populations in several areas of East Jakarta from each of the Stakeholders (authorized / related parties) namely as many as 6 people consisting of: students, homeroom teachers, school principals, KJP Plus operators, student guardians and RT. The results obtained that this distribution program has been right on target to the recipient, with a note in the form of no increase in achievement for recipient students, lack of special staff KJP Plus program for schools, the unavailability of scanners and the burden on schools with operational costs of visitation to the recipient's home program KJP Plus assistance. Another finding was that the physical forgery of the residence had occurred (at the elementary level recipient) but had been handled before the funding was given. Keywords : Monitoring and evaluation, KJP plus 2018, east jakarta region. AbstrakMonitoring dan Evaluasi KJP Plus dilakukan sebagai kegiatan Pengabdian Pada Masyarakat (P2M) yang terjalin antara fakultas Ilmu Komunikasi universitas Esa Unggul dan Pemerintah Provinsi DKI Jakarta, dengan tujuan melakukan verifikasi berupa pendalaman data-data kepada berbagai pihak yang terkait dengan kegiatan KJP Plus dari Tingkat SD, SMP, SMA, hingga lingkungan tempat tinggal siswa/i yang bersangkutan. Kegiatan monitoring dan evaluasi dilakukan menggunakan pendekatan kualitatif menggunakan desain survei dengan tujuan deskriptif dan observasi non partisipasi melalui wawancara, dengan teknik sampling, stratified random sampling dari populasi KJP Plus di beberapa wilayah Jakarta Timur dari masing-masing Stakeholder (pihak yang berwenang/terkait) yakni sebanyak 6 orang yang terdiri dari : siswa/i, wali kelas, kepala sekolah, operator KJP Plus, wali murid dan RT. Hasil yang diperoleh bahwa program penyaluran ini telah tepat sasaran kepada penerimanya, dengan catatan berupa tidak adanya peningkatan prestasi bagi siswa/i penerima, kurangnya tenaga khusus program KJP Plus bagi pihak sekolah, belum tersedianya scanner serta terbebaninya sekolah dengan biaya operasional visitasi ke rumah penerima program bantuan KJP Plus. Temuan lainnya terdapat upaya pemalsuan fisik tempat tinggal sempat terjadi (pada penerima tingkat SD) namun telah tertangani sebelum pemberian dana. Kata kunci : Monitoring dan evaluasi, KJP plus 2018, wilayah jakarta timur.
Indigenous Populations, Plantations, and Agrarian Conflicts in Rural North Maluku during the Colonial Period from the 17th to the 20th Century Rahman, A.
Indonesian Historical Studies Vol 8, No 1 (2024)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ihis.v7i1.15936

Abstract

North Maluku's history is marked by conflicts between the indigenous people and colonial rulers, spanning from the 17th century to the early 20th century. These conflicts were primarily driven by the seizure of agricultural lands and plantations, especially for clove and nutmeg spices, as well as forest areas and their products in rural areas. The colonial rulers' monopolistic practices, often enforced through contracts or agreements of cooperation and friendship, primarily benefited the colonial government and private sector. This situation led to growing unrest, anxiety, and pressure among the indigenous population, impacting them socially, economically, and politically. Various forms of indigenous resistance emerged, including rebellions and wars. This article explores several key questions: How did agrarian conflicts on indigenous plantation lands in rural North Maluku arise? What was the involvement of indigenous and colonial authorities in these conflicts? What were the impacts and processes for resolving these conflicts? The research findings indicate that agrarian conflicts arose due to several factors. First, the colonial rulers' monopolistic practices, enforced through contracts and cooperation agreements, only benefited the colonial side. Second, the indigenous people's lives were increasingly burdened by colonial social, economic, political, and military policies. Third, colonial rulers deliberately provoked disruptions in the relationships between local kings, native rulers, and their people. This article is based on source studies and field research from the colonial period, utilizing historical research methods: heuristics, criticism, interpretation, and historiography. The colonial and imperialist spirit, with its liberal capitalist views, significantly restricted indigenous freedoms to cultivate spices on their own plantations and manage forest products like resin. Additionally, indigenous people were prohibited from conducting trade with other traders, including fellow natives, traders from other parts of the archipelago, and foreign traders other than the Dutch.
The Implementation of Strengthening Character Education Program through Scouts Extracurricular Activities in Islamic Senior High School Rahman, A.; Wasliman, I.; Hanafiah, Hanafiah; Iriantara, Y.
Journal of Education Reseach and Evaluation Vol 5 No 4 (2021): November
Publisher : LPPM Undiksha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (299.918 KB) | DOI: 10.23887/jere.v5i4.32858

Abstract

Noble moral education for Islamic Senior High School (MAN) is closely related to school management. Management refers to how the formation of noble character is planned, implemented, and controlled by empowering all school resources and educational activities in schools. However, the implementation of noble education for MAN students has not been fully realized. This study aims to analyze the noble character education program for MAN students. In addition, it also examines the implementation and impact of the program for strengthening noble character education for MAN students. This research uses qualitative research methods with case studies. The methods used to collect data are observation, interviews, and documentation. The instrument used to collect data is a questionnaire. The technique used to analyze the data is descriptive qualitative analysis. The results of the study were. First, the program for strengthening the noble character education of MAN students through scout extracurricular activities was carried out well. Second, the character education program implementation for MAN students through scout extracurricular activities has not achieved good service quality because of the assessment system. Third, the impact of strengthening the noble character of the MAN student character education program through Scout extracurricular activities has achieved its objectives; However, it can only be monitored when students are in school. Therefore, Madrasah Ibtidaiyah needs to develop SOPs to form noble character by supporting extracurricular activities.
Augmented Reality for Vocabulary Learning and Speaking Skills of Tourism Employees Umar, Umar; Yuliadi, Yuliadi; Hidayatullah, Muhammad; Rahman, A.; Hassan, Zainudin
Journal of Languages and Language Teaching Vol 13, No 2 (2025)
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jollt.v13i2.13860

Abstract

This study explores the application of Augmented Reality (AR) technology as a tool to enhance environmental vocabulary learning and improve the speaking skills of tourism employees in Sumbawa. Given the importance of English proficiency in the tourism industry, many employees face challenges in mastering vocabulary and effective communication. Adopting a descriptive qualitative approach, data were collected through questionnaires and interviews with 16 employees from four tourism sites. The findings indicate that 87.5% of respondents believe AR significantly aids vocabulary expansion, with 75% reporting increased confidence in speaking English. Additionally, 62.5% see AR as relevant to their professional needs, while 50% find it helpful in understanding environmental terminology. Despite these benefits, some challenges remain, including limited access to AR devices and the absence of real-time feedback. The study concludes that AR has substantial potential to enhance language learning by improving vocabulary retention and speaking proficiency. Moreover, integrating AR into tourism training programs could further support employees in developing essential language skills for their professional growth.
Pengaruh Degree of Availability (DOA) Urea (CO(NH2)2) Sebagai Sumber Nitrogen pada Proses Pack Nitriding terhadap Sifat Fisik dan Mekanik Sprocket Non Pabrikan Resmi Purwaningrum, Yustiasih; Yudhawan, M. Riza; Rahman, A.
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v13i2.3807

Abstract

The aimed of this experimen is to determine the effect of degree of availability (DOA) variation of urea as a source of nitrogen in the pack nitriding process on the physical and mechanical properties of sprockets that manufactured from non-official motorcycle manufacturer.  The DOA variation used is 0.1 gr/mm2; 0.15 gr/mm2; and 0.2 gr/mm2. The pack nitriding process is carried out using a temperature of 550°C, a holding time of 2.5 hours and a cooling process with water medium. The testing process carried out is chemical composition, wear, hardness, observation of microstructure and corrosion rate. The results of the chemical composition test showed that the nitrogen content of all DOA variations of the nitriding pack increased compared to before the pack nitriding process. The amount of nitrogen from pack nitriding with DOA variation were 0.1336 %  for 0.1 gr/mm2;  0.1938 % to 0.15 gr/mm2; and 0.1996 % for 0.2 gr/mm2. While non-official manufacturer sprockets have a nitrogen content of 0.0004%. The wear value of the nitriding pack is smaller than before the nitriding pack. The lowest wear value was found in the nitriding pack result with a DOA of 0.2 gr/mm2, which was 0.00011 mm3/kg.m. This value shows that the nitriding pack has more wear resistance compared to the initial material which has a value of 0.00059 mm3/kg.m. The pack nitriding process can also increase the hardness value. The hardness value of the sprocket before the nitriding process is 266.67 VHN. The results of pack nitriding showed that the highest hardness value was found in the DOA variation of 0.2 gr/mm2 with a value of 356.18 VHN, followed by DOA 0.15 gr/mm2 with a value of 315.11 VHN and the lowest value was found in DOA 0.1 gr/mm2 with a value of 267.67 VHN. The results of corrosion testing show that all specimens before and after the nitriding process can be categorized as having excellent corrosion resistance.
Littering Activities Monitoring using Image Processing Husni, Nyayu Latifah; Handayani, Ade Silvia; Passarella, Rossi; Abdurrahman; Rahman, A.; Felia, Okta
Computer Engineering and Applications Journal (ComEngApp) Vol. 12 No. 3 (2023)
Publisher : Universitas Sriwijaya

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Abstract

Littering is a human behavior that become a habit since childhood. Even though there are rules that prohibit this behavior, the community still continues to do so. In order to limit this bad behavior, a device that can monitor and provide notifications is needed. In this research, proposed device can identify human activities by utilizing webcam-based image processing. It is processed by machine learning using the Recurrent Neural Network (RNN). The monitoring device produced in this research works by comparing the captured image data with dataset. The captured image data are extracted into figures and form several coordinate points on the human body. Then, the system classifies the human activities into two categories, i.e., normal or littering. This device will provide an output in the form of a ewarning every time the activity of littering is detected.
SISTEM MONITORING SUHU DAN KELEMBABAN PADA ALAT PENGERING PADI BERBASIS SOLAR CELL: Teknik Elektronika Maharani, Alika; Kusumanto, R.D.; Rahman, A.
JURNAL TELISKA - JURNAL TEKNIK ELEKTRO POLITEKNIK NEGERI SRIWIJAYA Vol 16 No II Juli (2023): TELISKA Juli 2023
Publisher : Teknik Elektro Polsri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.8188076

Abstract

ABSTRACT Grain drying is one of the post-harvest processing processes which aims to reduce the moisture content in the grain to a certain extent until dry grain is obtained according to standards in order to enter the milling process. In general, Indonesian people use traditional methods in carrying out the process of drying grain, namely by drying it under the hot direct sun. Based on this, a machine is needed to help dry this post-harvest grain so that it can dry grain with maximum results in a short time and of course still save energy. This research aims to design and make a dryer as well as be able to monitor the temperature and humidity of the grain so that the grain can be dried according to milling standards. Key words : Grain, Solar Cell, Monitoring, Dryer
Co-Authors Abdurahman Abdurrahman Ade Silvia Handayani B. P. Purwanto Dewi, Ratri Mustika Dwi Ayu Putri E. Taufik Felia, Okta Hanafiah Hanafiah Hanafiah, Hanafiah Hartini Iskandar Hidayatullah, Muhammad Humaira, Sahira Iim Wasliman Ikbal Rachmat Iriantara, Yosal Kusumanto, R.D. Maharani, Alika MUSLIMIN, SELAMET Nyayu Latifah Husni, Nyayu Latifah Oka Lingga Putra Perdana Aditya, Perdana Purwantiningasih, S. RD Kusumanto Rifaldi, Muhammad Arya Rossi Passarella Sumartono Sumartono Syarifudin Syarifudin Umar Umar Yudhawan, M. Riza Yuliadi Yuliadi Yustiasih Purwaningrum Zainudin Hassan