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All Journal EJIP BIOL Jurnal Pendidikan dan Pembelajaran Khatulistiwa (JPPK) e-Dinamis Legal Opinion Primary: Jurnal Pendidikan Guru Sekolah Dasar Jurnal Ilmu-Ilmu Perikanan dan Budidaya Perairan Pendidikan Biologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains JEE (Jurnal Edukasi Ekobis) Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin JURNAL PENDIDIKAN TAMBUSAI Jurnal Teknologi Terapan Maspul Journal of English Studies (Majesty) SULTANIST: Jurnal Manajemen dan Keuangan Akbis: Media Riset Akuntansi dan Bisnis Asian Journal of Aquatic Sciences JATI (Jurnal Mahasiswa Teknik Informatika) Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences JIEP: Jurnal Ilmu Ekonomi dan Pembangunan J-ISCAN : Journal of Islamic Accounting Research AL-FALAH : Journal of Islamic Economics Bioscientist : Jurnal Ilmiah Biologi Ascarya: Journal of Islamic Science, Culture and Social Studies Nusantara: Journal for Southeast Asian Islamic Studies Indonesian Journal of Sport Management Majesty Journal Abrahamic Religions: Jurnal Studi Agama-Agama International Journal of Social Service and Research Journal Peqguruang: Conference Series Syar'ie: Jurnal Pemikiran Ekonomi Islam Journal of Economics, Management, Business And Accounting (JEMBA) Universitas Muhammadiyah Yogyakarta Undergraduate Conference Proceeding Indonesian Journal of Cancer Jurnal Ilmu Pendidikan dan Sains Islam Interdisipliner Jurnal Multidisiplin Sahombu Jurnal Pendidikan dan Ilmu Sosial Jurnal Pengabdian Masyarakat Singa Podium (JPMSIPO) STATISTIKA Electronic, Business, Management and Technology Journal Journal of Geographical Sciences and Education Journal of The Civil Engineering Student Journal of Mathematics, Computation and Statistics (JMATHCOS) Harmony Philosophy: International Journal of Islamic Religious Studies and Sharia
Ramadhan Ramadhan
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OPTIMASI PARAMETER PEMESINAN PADA MESIN SEKRAP MODEL L-450 MENGGUNAKAN ALGORITMA GENETIKA Ramadhan Ramadhan; Alfian Hamsi
e-Dinamis Vol 7, No 3 (2013): e-dinamis
Publisher : e-Dinamis

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (260.892 KB)

Abstract

ABSTRAKAlgoritma genetika merupakan suatu metode pencarian yang sangat efektif untukmenyelesaikan permasalahan optimasi pada dunia industri atau manufaktur yang memilikipermasalahan–permasalahan kompleks secara lebih mudah dan lebih akurat. Metodepencarian ini didasarkan oleh mekanisme evolusi. Evolusi akan mengakibatkan perubahanyang terus–menerus untuk menuju suatu kesempurnaan atau keseimbangan. Fungsi optimasipada pengujian ini dibuat dari persamaan waktu permesinan dimana parameter yang digunakanadalah kecepatan potong dengan ambang batas antara 24 m/min sampai dengan 30 m/menitdan gerak makan berkisar antara 0,1 mm sampai dengan 0,5 mm. Proses optimasi dimulai darimembangkitkan populasi awal secara acak kemudian dilakukan seleksi dengan metode rodaroulette lalu proses genetika yaitu rekombinasi (crossover) dan mutasi, selanjutnya dievaluasinilai fitness dari individu baru. Parameter terbaik ditentukan oleh nilai fitness terkecil karenafungsi optimasinya diturunkan dari waktu permesinan sehingga akan diperoleh nilai yang palingoptimal dengan kecepatan potong 28,8517 m/menit, gerak makan 0,475 mm dan waktupemotongan 0,17233 min.Kata kunci : Algoritma genetika, optimasi, pemesinan
STUDI KADAR NITRAT DAN FOSFAT PERAIRAN RAWA BANJIRAN DESA SEDANG KECAMATAN SUAK TAPEH KABUPATEN BANYUASIN Ramadhan Ramadhan; Indah Anggraini Yusanti
Jurnal Ilmu-ilmu Perikanan dan Budidaya Perairan Vol 15, No 1 (2020): Jurnal Ilmu-ilmu Perikanan dan Budidaya Perairan
Publisher : University of PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/jipbp.v15i1.4407

Abstract

Aktivitas yang terjadi di perairan rawa banjiran Desa Sedang Kecamatan Suak Tapeh Kabupaten Banyuasin menghasilkan limbah buangan dan mengakibatkan perairan tersebut menjadi tercemar. Masuknya limbah buangan tersebut menyebabkan menurunnya kualitas perairan yang ditandai dengan kenaikan konsentrasi zat hara.  Zat hara yang umum di lingkungan perairan adalah nitrat dan fosfat. Penelitian ini dilakukan di rawa banjiran Desa Sedang Kecamatan Suak Tapeh Kabupaten Banyuasin. Sampling kualitas air dilakukan pada Agustus 2016, Juni 2017 dan April 2018 di 3 (tiga) stasiun pengamatan, yaitu stasiun 1 Rawa Nebong Kuning, stasiun 2 Rawa Poron dan stasiun 3 Rawa Banan. Hasil penelitian ini mengindikasikan bahwa keberadaan kadar nitrat dan fosfat di rawa banjiran Desa Sedang Kecamatan Suak Tapeh Kabupaten Banyuasin termasuk dalam kriteria perairan eutrofik.
Perancangan Aplikasi Pengenalan Pariwisata Kabupaten Kuantan Singingi Berbasis Android Menggunakan Layanan Location Based Service (LBS) Ramadhan Ramadhan; Feri Candra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Kuantan Singingi is one of the regencies in Riau Province which is visited by many tourists every year, this is because in Kuantan Singingi there is a ‘Pacu Jalur’ event that is held every year and this event is included in the National tourism calendar. With the inclusion of ‘Pacu Jalur’ in the National Calendar of Events causing many tourists both in the city, out of town and international tourists who come to visit Kuantan Singingi, therefore the purpose of this research is to develop tourism applications that can facilitate tourists to access tourist information in Kuantan Singingi This application uses the LBS service and can be used via android. The stages of designing this tourism application using the Waterfall method. Waterfall is a systematic and sequential development model that links one phase to another in sequence. This research resulted in an Android-based Kuantan Singingi Tourism App that can be used by tourists to find information about tourism in Kuantan Singingi. Keywords: Location Based Service, Android, Waterfall Method, Tourism, Kuantan Singingi
Pembuatan Coating Copper-Cobalt Oksida Melalui Proses Sol Gel Dan Dideposisikan Secara Spray Coating Pada Substrat Alumunium Ramadhan Ramadhan; Amun Amri; Yelmida Yelmida
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The research aims to synthesis the mixed copper and cobalt oxides coating in alumunium substrate for solar selective absorber (SSA) using sol-gel spray coating method. The coating were characterized using UV-Vis-NIR, X-Ray diffraction, Scan Electron Microscope (SEM) and adhesion test. The sol precursor were copper nitrate and cobalt nitrate. The sol precursor are made by dissolve the granules Cu(NO3)2.3H2O and Co(NO3)2.3H2O into the etanol solvent and added propionate acid. Mix the two solution and then stirred at room temperature for two hours in a closed state. The coating process was done by using a spray gun which is connected by using a compressor. The result of researching showed that sample with precursor concentration 0.25 M and 30 x spraying and drying cycle with (α) = 86.8%. further characteristic was obtained the value of emittance (ε) = 6.64%. The crystal structure of CuCo2O4, CuO and CoCo2O4 were found in XRD result analyst. The result testing of SEM showed that surface coating film relative homogen and the result testing of adhesion showed bond layer of coating categorized as 4B according to the standards ASTM D 3359.Keyword : coating, precursor, sol, solar selective absorber, spray coating
ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI IMPOR DAGING SAPI DI INDONESIA TAHUN 1996 s.d 2017 RAMADHAN RAMADHAN; ALI WARDHANA
JIEP: Jurnal Ilmu Ekonomi dan Pembangunan Vol 2, No 3 (2019)
Publisher : PPJP Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jiep.v2i3.1202

Abstract

Ramadan (2019). Analysis of factor-factor that affect the import of beef in Indonesia year 1996 to 2017. Advisor : Ali Wardhana, SP, M.Si.            This study aims to determine how the effect of import prices, exchange rates, and GDP per.capita of the number of imports of beef in the country of Indonesia during 1996 to 2017. The data used are time series data.            The analytical method used is multiple regression analysis with estimation using E-views 9.The analysis showed thatimport prices has negative and notsignificant to the number of imports of beef in the countryof Indonesia, the exchange rate has a positive effect and no significant effect on the number of imports of beef in the country of Indonesia, and GDP per.capita positive and significant impact on the number of imports of beef in the country of.Indonesia year 1996 to 2017.        Keywords : Import, Import Prices, Exchange Rate, and GDP per capita
Konflik Batin Tokoh Utama Dalam Drama Romeo and Juliet dan Drama Atas Nama Cinta Fitria Amalia; Ramadhan Ramadhan
Ascarya: Journal of Islamic Science, Culture, and Social Studies Vol. 1 No. 2 (2021)
Publisher : Perkumpulan Alumni dan Santri Mahyajatul Qurro'

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53754/iscs.v1i2.19

Abstract

This study aims to analyze two literary works and to present the results of the analyzes that the author has reviewed as a consideration or reference for comparative literary studies with the title "The inner conflict of the main character in the drama Romeo and Juliet by William Shakespeare and Atas Nama Cinta by Agus R. Sardjono. "Shows the inner conflict of the story of Romeo and Juliet about love wrapped in a grudge between the two families, which causes the murder and suicide of the main character until the family finally reconciles. As well as the comparison with In the Name of Love, which is a love drama wrapped in comedy that has a deep meaning about love and power and is closely related to the drama Romeo and Juliet because they have similar inner conflicts.This study uses a Literary Psychology approach with Sigmund Freud's theory. The method used in this research is descriptive qualitative. The sources of this research are two drama scripts, namely Romeo and Juliet by William Shakespeare and Atas Nama Cinta by Agus R. Sardjono. From the analysis of the two drama scripts, it can be rejected. The conflict in the two drama scripts Romeo and Juliet by William Shakespeare and Atas Nama Cinta by Agus R. Sarjono experienced an inner conflict with the main character. According to Sigmund Freud's theory, there is an ego in the event of this request. Ego is a psychological responsibility and arises because of the organism's need for good relations (reality).
Kajian Capaian Indikator Makro Pembangunan Kota Subulussalam Tahun 2015-2020 Muhammad Iqbal; Marzuki Marzuki; Muhammad Halim Pohan; Syuhadi Syuhadi; Ramadhan Ramadhan
Statistika Vol. 21 No. 2 (2021): Statistika
Publisher : Department of Statistics, Faculty of Mathematics and Natural Sciences, Universitas Islam Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/statistika.v21i2.329

Abstract

Kinerja pemerintahan daerah memiliki target yang diukur dengan sebuah alat ukur. Target kinerja dituangkan dalam sebuah dokumen perencanaan. Indikator utama dalam pengukuran capaian kinerja tahunan ada dua, yaitu Indikator Kinerja Utama (IKU) dan Indikator Kinerja Kunci. Aspek inti dari penelitian ini adalah aspek kepentingan bersama. Aspek ini diukur dengan indikator makro, meliputi kebutuhan dasar masyarakat Subulussalam dalam hal pembangunan manusia, ketertiban dan ketenteraman, pemerataan pendapatan dan kesempatan kerja. Penelitian ini bertujuan untuk melihat ada atau tidaknya perbedaan antara target dan realisasi kinerja dengan menggunakan pengujian statistika yaitu uji Mann-Whitney. Data yang digunakan merupakan data indikator makro pembangunan daerah, yaitu Laju Pertumbuhan Ekonomi (%), Angka Kemiskinan (%), Rata-rata Lama Sekolah atau RLS (tahun), Indeks GINI, Tingkat Pengangguran Terbuka atau TPT (%), Angka Harapan Hidup atau AHH (tahun), dan Angka Melek Huruf. Data terdiri atas 2 variabel, yaitu target kinerja yang ditetapkan dalam Rencana Pembangunan Jangka Menengah Daerah (RPJMD) Kota Subulussalam dan implementasi indikator kinerja dari tahun 2015-2020. Hasil yang diperoleh adalah terdapat 3 indikator yang realisasi kinerja hampir mendekati target kinerja pada selang kepercayaan 99%, yaitu angka kemiskinan, Tingkat Pengangguran Terbuka, dan Angka Melek Huruf. Terdapat 4 indikator pada selang kepercayaan 95% dan 90%, dimana realisasi kinerja hampir mendekati target kinerja, yaitu Angka Kemiskinan, Indeks GINI, Tingkat Pengangguran Terbuka, dan Angka Melek Huruf. Sedangkan untuk indikator lainnya terdapat perbedaan yang signifikan antara target kinerja dan realisasi kinerja.
PERANCANGAN GIRDER PADA FLEKSIBEL GANRTY CRANE KAPASITAS 1 TON Rachmad Imbang Tritjahjono; Ramadhan Ramadhan; Destri Muliastri; Casiman Sukardi; Yun Gemilang
Jurnal Teknologi Terapan Vol 9, No 2 (2023): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v9i2.610

Abstract

Lifting and transporting equipment is one of the keys to carrying out work in the manufacturing and construction industries. Due to limited access, various obstacles must be overcome in some working areas. A ganrty crane is an alternative lifting equipment that has high flexibility. This article reports the research results on the girder’s main components. This component gets direct contact with loading when lifting and rigging work is carried out. This research method was conducted by comparing manual calculation models and CAE using the Solidworkss Simulation software. From these two methods, this study yielded 23.091 and 25.54MPa for manual calculations and the finite element method, respectively. Furthermore, in the finite element method with direct contact loading, a stress of 40.52MPa is obtained. From the three stress calculations, it can be concluded that the safety factor has exceeded the requirements set out in the standard. Furthermore, utilizing the Goodman model, mitigating the possibility of fatigue failure also indicates a safe condition. Based on recent research reports, a potential self-healing is not yet possible to be recognized well especially for metals having a grain size of micron.
Profiles of Cancer Patients at Surgical Oncology Outpatient Clinic at Dharmais Cancer Hospital as National Referral Hospital in Indonesia from 2017 to 2021 Sofyan, Rian Fabian; Ramadhan, Ramadhan; Purwanto, Denni Joko; Gautama, Walta; Dien, Alban W; Brahma, Bayu; Iskandar, Bob Andinata; Kurniawan, Febriyanto; Husein, Abdul Muhaimin; Sabatini, Nafilla Nesantya; Ginawang, Asto
Indonesian Journal of Cancer Vol 18, No 2 (2024): June
Publisher : http://dharmais.co.id/

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33371/ijoc.v18i2.1090

Abstract

Background: Cancer is one of the leading causes of death in the world. Dharmais Cancer Hospital is set to be the National Cancer Center with an obligation to support all hospitals throughout the country that specialize in cancer. Surgical Oncology is one of the departments that handles the most cases in Dharmais Cancer Hospital. The types of cancers that are managed in Surgical Oncology Departments are breast cancer, head and neck cancer, thyroid cancer, skin cancer, and soft tissue cancer. Objective: This paper aims to find the newly diagnosed cancer patients’ characteristics and socioeconomic features in Dharmais National Cancer Center from 2017 to 2021. Methods: The study was a cross-sectional descriptive study using the medical record database of outpatients at Dharmais Cancer Hospital as a data collection method from 2017 until 2021. The sample size includes all new cancer patients in Dharmais Cancer Hospital that have been recorded. Result: Over 500,000 patients visited Dharmais Cancer Hospital in the last 5 years with an average of over 100,000 visits per year. Over 90% of the patients have solid tumors, and over eight thousand patients were admitted to the Surgical Oncology Outpatient Clinic, it was concluded that the most frequently diagnosed type of cancer is breast cancer (66.7%) of all types of cancer in the past 5 years. Most of the new patients are female (88.1%) with the most common age group of 40 to 55 years old (50.7%). Most of the patients are senior high school graduates (42.8%). Conclusions: The general characteristic of cancer patients is dominated by breast cancer patients, most patients are female, in the age group between 40 to 55 years old, and senior high school graduates. Further studies need to be done on each type of cancer to have a better understanding of the profiles and characteristics of solid cancer patients in Dharmais Cancer Hospital. 
Market Potential of Halal Products in Aceh: Case Study of Halal Industry Based on Halal Product Data 2014-2022 Ramadhan, Ramadhan; Ulfah, Almira Keumala; Nurzianti, Rahma; Bunkes, Panetir; Kadriyani, Emilda
AL-FALAH : Journal of Islamic Economics Vol 8, No 2 (2023)
Publisher : Institut Agama Islam Negeri (IAIN) Curup

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29240/alfalah.v8i2.7083

Abstract

Purpose: The majority of people in Aceh Province are Muslims, and the region strictly adheres to Sharia law, particularly in the halal products sector. With a focus on Aceh region, this study attempts to assess growth, obstacles, and solutions in the development of the halal business and halal goods in Indonesia.Design/Method/Approach: This study employed qualitative approaches to find material from secondary sources, including books, journals, and national statistics organizations, and to gather data.Findings: The provincial administration of Aceh has worked to establish the halal market and halal goods as an important economic driver.Originality/Values: The number of visits from visitors, particularly those from outside, is rising year after year, which reflects this expansion. The administration of Aceh province anticipates advantages from this research in the growth of the halal sector and halal goods.
Co-Authors Afrizal Tanjung Ahmad, Amirzah Aisyah Nurbaiti Aji, Kartika Restu Akhmad Qashlim, Akhmad Alfian Hamsi ALI WARDHANA Almira Keumala Ulfah Amun Amri Andi Hasriadi Hasyim Aprilia, Rochmathul Duwi AR, Silvia Arief Agus Triansyah Asrul Nirman Astuti - Aulia, Syahirah Chanda Az-zahra, Caesaria Azizah, Ghina Bahtiar Bahtiar Binti Hamit, Anis Aqilla Brahma, Bayu Budi, Mutiara Setia Budiyono, Slamet Bungkes, Panetir Bunkes, Panetir Cahyati, Martyana Dwi Casiman Sukardi Comeron, Rion Cristo, Natanael Damayanti, Nurul Darwin Lie Dawi Karomati Baroroh Dawolo, Kristiani Delfianti, Delfianti DENNI JOKO PURWANTO, DENNI JOKO Destri Muliastri Dien, Alban W Efendi Efendi Eimar, Cut Rachel Elizal, Elizal Entin Daningsih Ernawati, Wa Fadillawaty Saleh, Fadillawaty Feri Candra Firmansyah, Muhammad Wahyu Fitria Amalia Gautama, Walta Ginawang, Asto Hakas Prayuda Hardiansyah, Fahrudin Hasanudin, La Hayati, Husna Heny Rofizar Hermanto, Cahyo Hersanto Fajri Husein, Abdul Muhaimin Iskandar, Bob Andinata Ismail Ismail Ismail, Sherif Mohamed Iyan Nurdiyan Haris Izhar Salim Johanes Fernandes Andry Jumariyah, Siti Junaidi, Rifqi Junaidi Junianto, Pilifus Kadir Kadir Kadriyani, Emilda kesumah, priatna Kurnia Ningsih Kurniawan, Febriyanto Mahwiyah, Mahwiyah Marfi Yosnita Maruf, Irma Rachmawati Marzuki Marzuki Mohammad Hamdani, Mohammad Mohammad Lutfi Monika, Fanny Muhammad Fajar Purnama Muhammad Halim Pohan Muhammad Handi Pratama Muhammad Hasan Muhammad Iqbal Muhammad Zaini Ngatmin Ningrum, Cahaya Nugroho, Febriawan Ardi Nurdin Nurdin Oktapani, Silm Putri Tipa Anasi Rachmad Imbang Trittjahjono Rahma Nurzianti, Rahma Ranti, Bryen Yuzac Zein Baneka Ratna Sari Dewi Ria Kasmeri Robert Tua Siregar Rustiyarso, Rustiyarso Sabatini, Nafilla Nesantya Salbiyah, Salbiyah Sarmada, Sarmada Sasmita Sasmita Satrya Fajar Kusuma, Fitrah Savitri, Asmah Siti Nurjanah Siti Rohani Sofiyan Sofyan, Rian Fabian Sugiarto S Suhendar, Bagus Sulistyarini, Sulistyarini Sulistyo, Anggi Supartini, Sri Syafrizal Syafrizal Syuhadi Syuhadi Tamin, Rosmawati Tay, En Tedi Rusman Umayasari, Silvia Valentine, Chelsea Rizky Vishnu Juwono, Vishnu Yelmida Azis Yeni, Rahma Yokhebed Yokhebed Yosephine, Satya Howen Yulianti, Eka Budi Yun Gemilang Yurinanda, Sherli Yusanti, Indah Anggraini Yusria Darma Zulfah Zulfah