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All Journal TEKNIK Jurnal Produksi Tanaman Jurnal TIMES PROCEEDING IC-ITECHS 2014 JIET (Jurnal Ilmu Ekonomi Terapan) INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Krea-TIF: Jurnal Teknik Informatika Jurnal Permukiman Meteor STIP Marunda Losari : Jurnal Arsitektur, Kota dan Pemukiman JURNAL ABDIMAS TRIDHARMA MANAJEMEN JEEE-U (Journal of Electrical and Electronic Engineering-UMSIDA) Jurnal Ekonomi Pusaka : Journal of Tourism, Hospitality, Travel and Business Event International Journal of Advanced Multidisciplinary Jurnal Spasial: Penelitian, Terapan Ilmu Geografi dan Pendidikan Geografi Applied Business and Administration Journal (ABAJ) International Journal of Sustainable Competitiveness on Tourism Barista : Jurnal Kajian Bahasa dan Pariwisata Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Informasi interaktif : jurnal informatika dan teknologi informasi Ecobankers : Journal of Economy and Banking PESHUM International Journal of Universal Education
Mohamad Ridwan
Universitas Muhammadiyah Sukabumi
Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Physics Social Sciences Transportation Other

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Perangkat Lunak Keamanan Informasi Pada Mobile Menggunakan Metode Stream Dan Generator Cipher Mohamad Ridwan, Asep Budiman Kusdinar ,
PROCEEDING IC-ITECHS 2014 PROCEEDING IC-ITECHS 2014
Publisher : PROCEEDING IC-ITECHS 2014

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Integration method of  stream and generator cipher can used to randomizing  messageinformation. Delivery of message information through email or mobile is required a good security and safety system. So can protect message information that be acceptable by receiver carefully and  precise.  In  this  article  methodologies  which  will  be  applied  for randomize message  information  is    processing  encryption  and    descryption  to    apply  stream  and generator cipher. The software of  this can be used to send message information applicable to information in character secret by using key stream and   generator cipher as introduction lock  of  message information.  So  with  existence  of  this  stream  and  generator  cipher  is locking authentication message information become safe and is well ensured.
Seismotectonic, Potential Seismic and Volcano Hazard of Minahasa Peninsula, Eastern Indonesia Asdani Soehaimi; Tatang Padmawidjaja; S.R Sinung Baskoro; Fitriani Agustin; Mohamad Ridwan
Jurnal Geologi dan Sumberdaya Mineral Vol. 23 No. 2 (2022): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v23i2.683

Abstract

The Minahasa Peninsula is located in the western flank of Mollucca seismotectonic zone existed, where are four active tectonic plates colliding from east to west are the Philippine Oceanic Plate, Halmahera Micro Continental Plate, Mayu Ridge Micro Oceanic Slab Plate and the Minahasa Peninsula Micro Continental Plate. The result of the probabilistic seismic hazard assessment in Manado City and surrounding area, Zone I (site class SE), Zone II (site class SD) and Zone III (site class SC), shows the building and non building for risk category I, II, III and IV, has the seismic disign category D. Building and non building in Zone I (SD1=0,80g) with risk category I, II, III has structure seismic design category E and risk category IV has seismic design category F.The correlation of seismotectonic, structural geology, and seismicity to the volcanic centers distribution in this region, shows the Minahasa Peninsula volcanoes can be divided into two regions are the compressional and extentional volcanoes tectonic regions. To mitigate the seismic risk in this region, the structure for building and non building contraction is recommended to follow the procedures for planning earthquake resistance for building structures and non building (BSN, SNI 1726-2019). On another hand, for potential volcano hazard, recommended followed the guidance map of the volcanic hazard prone region by The Center for Volcano and Geological Hazard Mitigation, Geological Agency of Indonesia.Keywords: Mollucca seismotectonic zone, potential seismic and volcanoes hazard.
EVALUASI PENERAPAN 3M DIMASA PANDEMIC COVID 19 Pasaribu, Veta Lidya Delimah; Dwiyatni, Aulia; Sabina, Clara; Ridwan, Mohamad; Gunawan, Deril Dwi; Noviani, Bunga Cahya
Jurnal Abdimas Tri Dharma Manajemen Vol. 2 No. 2 (2021): ABDIMAS April 2021
Publisher : Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/ABMAS.v2i2.p54-60.y2021

Abstract

Tujuan dari kegiatan Pengabdian Kepada Masyarakat ini adalah untuk melaksanakan salah satu kegiatan PKM. Selain itu, melalui kegiatan Pengabdian Kepada Masyarakat ini mahasiswa diharapkan dapat memberikan kontribusi besar kepada pengembangan dan penerapan keilmuan dalam masyarakat. Metode kegiatan yang digunakan adalah tim pelaksana mengunjungi PT. Abisatya panca nawa Kelurahan Pamulang barat Kota Tangerang Selatan dan memberikan penyuluhan tanggal 11 Maret 2021. Kegiatan pengabdian dilakukan dengan cara memberikan penyuluhan mengenai apa yang perlu diperhatikan dalam menghadapi wabah covid 19 diantaranya memperhatikan kesehatan rohani , cara pola pikir, memilah informasi yang didapat dan dengan memberikan edukasi tentang motivasi. Masa pandemi covid-19 seperti ini, sangat mudah untuk mengalami kesulitan untuk mendapatkan motivasi. Di tengah situasi yang serba tidak pasti seperti sekarang ini orang-orang bisa dengan mudah mengalami putus asa yang tentunya hal ini juga bisa menyebabkan stres yang meningkat. Dengan memberikan penyuluhan, maka PT. Abisatya panca nawa memperoleh berbagai macam informasi dan strategi-strategi mengenai bagaimana untuk tetap produktif selama menghadapi wabah covid 19. Kata kunci : Motivasi, Pandemic Era
PANDANREJO TOURISM VILLAGE DIGITAL BRANDING IDENTITY ANALYSIS Dendy Sundayana; Linandar Tanuwijaya; Mohamad Ridwan; Darmawan Sundayana; Odang Rusmana
International Journal of Sustainable Competitiveness on Tourism Vol. 3 No. 01 (2024): IJSCOT III-01
Publisher : Politeknik Pariwisata NHI Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34013/ijscot.v3i01.1483

Abstract

Tourism is one of the factors affected by the COVID-19 pandemic, but after the COVID-19 pandemic, tourism began to rise. There was the phenomenon of "Revenge Tourism," or revenge tourism, which increased interest in travelling after the COVID-19 pandemic. There is also an alternative trend in the form of tourist villages, which are increasingly growing. Pandanrejo Tourism Village is one of the tourist villages in Indonesia and has various attractions and tourism products that are attractive to tourists. The aim of this research is to determine how the digital branding of a tourist village can be right on target according to the target market they determine and what the condition of the village's digital branding identity is. This must be supported by the use of strong branding, both digital and conventional. However, for branding the Pandanrejo Tourism Village, there are still several things that can be maximised so that digital communication through digital branding includes concepts and visual designs carried out in tourism products so that it can maximise the target market and positioning of the Pandanrejo Tourism Village. This research approach uses a qualitative research approach with several key sources to be used as primary data for analysis and involves many stakeholders, such as tourist village managers, community leaders, village officials, and visitors who came to this village. The findings in this research are the condition of the digital branding of the Pandanrejo tourist village and the implications for the information conveyed to visitors.
Efforts To Sustain Fresh Water Production in Order to Improve The Performance of Fresh Water Generator On The Mt. Rubra MP, Alfyansyah; Ridwan, Mohamad; Y Siahaan, Rosna
International Journal of Advanced Multidisciplinary Vol. 2 No. 2 (2023): International Journal of Advanced Multidisciplinary (July-September 2023)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v2i2.303

Abstract

Fresh water generator is an auxiliary aircraft aboard a ship that produces fresh water by evaporating seawater in the evaporator and the seawater is cooled by condensation in a distillation vessel or condenser (condenser), thus producing condensed water called condensate. Fresh water generator running optimally is one of the important factors to support ship operations, especially the results of the fresh water generator used for cooling systems and daily needs on board. This study aims to find out the causes of the problems and efforts that occur in the fresh water generator so that it can maintain fresh water production results in the fresh water generator. While data analysis is to identify the data set that has been obtained, so that the data can be analyzed and the purpose is analyzed in order to get a clearer picture in the preparation of this research both from the problems and the final results. It is hoped that this research research can produce ideas, solutions and appropriate problem solving, both in observing and dealing with the problems raised in this study. Based on research on fresh water production on fresh water generators in MT. Rubra has decreased from 19 tonnes/day to 12 tonnes/day. This is caused by the occurrence of salt deposits on the evaporator plate so that evaporation becomes late and the low pressure of sea water leading to the fresh water generator causes fresh water production to decrease
Karakterisasi Site di Lokasi Stasion Monitoring Gempa Pada Dugaan Jalur Sesar Baribis Ridwan, Mohamad; Rusli, Muhammad; Sarumpaet, Erik Rolando
Jurnal Permukiman Vol 16 No 1 (2021)
Publisher : Direktorat Bina Teknik Bangunan Gedung dan Penyehatan Lingkungan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31815/jp.2021.16.1-9

Abstract

Merujuk pada beberapa publikasi sebelumnya dimana jalur sesar Baribis yang berasal dari kawasan Subang diduga masih menerus ke arah Barat mendekati kawasan Jakarta. Hal tersebut menjadi perhatian banyak ahli untuk melakukan kajian lebih detail karena dikhawatirkan akan berdampak pada beberapa kota besar di sekitarnya. Sebagai tahap awal studi adalah melakukan pemantauan kejadian gempa di sekitar dugaan jalur sesar dengan memasang seismograf untuk mengetahui aktivitas sesar. Bersamaan dengan pelaksanaan pembangunan stasiun pemantau gempa, kajian karakterisasi situs dilakukan pada setiap lokasi yaitu di Jatiluhur, Walahar, dan Cipamingkis dengan menggunakan metode Standar Penetration Test (SPT), Microtremor Array dan HVSR. Hasil uji lapangan untuk lokasi Jatiluhur diperoleh periode predominan (T) = 0,77 detik, Vs30 = 274,17 m/detik, kedalaman batuan dasar 276 m dan NSPT30 = 40,05, di Walahar T = 0,58 detik, Vs30 = 264,35 m/detik , kedalaman batuan dasar 305 m, NSPT30 = 15,14, sedangkan di Cipamingkis T = 0,37 detik, Vs30 = 269,16 m/detik, kedalaman batuan dasar 190 m, NSPT30 = 35,83. Berdasarkan hasil tersebut seluruh lokasi kajian dapat diklasifikasikan kedalam jenis tanah sedang (kelas SD). Hasil ini dapat digunakan sebagai referensi untuk berbagai keperluan, termasuk studi amplifikasi dan analisis bahaya seismik.
PENERAPAN TEKNIK DATA SCRAPING` UNTUK PENENTUAN KESESUAIAN LOKASI MINIMARKET BERDASARKAN ATURAN NIAGA DI JAWA BARAT Harahap, Rina Muthia; Atmawidjaja, Rudie Rachmat; Kresnawati, Diah Kirana; Ridwan, Mohamad; Alamsyah, Denan Fajar
Jurnal Spasial Vol 12, No 1 (2025)
Publisher : Program Studi Pendidikan Geografi Universitas PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22202/js.v12i1.9758

Abstract

Indonesian people are already familiar with retail MSMEs such as grocery stores/stalls/taverns. Currently, the choice of places to shop is increasingly diverse, including minimarkets. The results of research in Bogor City in 2022 show that 64% of minimarkets in Bogor City have a distance between minimarkets of less than 250 meters, which means they do not comply with commercial regulations in Bogor City. Other cities in West Java Province also have regulations regarding distance between minimarkets. Analysis of the distance between minimarkets can be carried out in a shorter time if data on the distribution of minimarkets has been obtained. Data on the distribution of hundreds of minimarkets can be mapped using data scraping techniques. The result is an excel file containing several pieces of information, including the minimarket address. Next, geocoding is carried out based on the address information. Then the distribution of minimarkets can be displayed via mapping software. The buffer method is used to analyze the distance between minimarkets according to the regulations applicable in a particular city. This research aims to produce a comparison of the suitability of minimarket locations based on the regulations that apply in the cities of West Java Province. The minimarkets referred to in this research are shops managed by business entities such as Alfamart, Alfamidi, Circle K, Indomaret, and Prima Freshmart. After going through the validation and distance analysis stages between minimarkets, the city of Bandung became the city with the highest number of minimarkets that did not comply with commercial regulations.
Sistem monitoring kualitas udara sebagai media edukasi kesadaran lingkungan bagi masyarakat perkotaan Nadziroh, Faridatun; Sa'adah, Nihayatus; Aswoyo, Budi; Astawa, I Gede Puja; Puspitorini, Okkie; Santoso, Tri Budi; Ridwan, Mohamad; Wijayanti, Ari; Kurniajaya, Moga; Wahyu, Gilang Arya; Yudha, Kurniawan Try; Raihan, Dafa; Salwadilla, Ika Shafira
Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Vol 8 No 2 (2025)
Publisher : University of Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jipemas.v8i2.23491

Abstract

Permasalahan kualitas udara di kawasan perkotaan semakin serius akibat pembangunan, industrialisasi, dan padatnya jumlah penduduk. Masalah ini berdampak pada kesehatan masyarakat, seperti penyakit pernapasan dan gangguan jantung. Pengabdian masyarakat ini bertujuan memberikan informasi akurat tentang kondisi udara perkotaan dan meningkatkan kesadaran masyarakat akan pentingnya menjaga kualitas lingkungan. Sistem pemantauan kualitas udara berbasis teknologi dikembangkan menggunakan sensor multi-in-one RK300-08, yang mengukur berbagai parameter polusi udara, seperti karbon monoksida (CO), ozon (O₃), sulfur dioksida (SO₂), nitrogen dioksida (NO₂), serta partikel debu halus (PM2.5) dan lebih besar (PM10). Data pemantauan diproses dengan mikrokontroler ESP32 dan ditampilkan real-time melalui dasbor web yang dapat diakses masyarakat. Sensor ini dipilih karena kemampuannya yang komprehensif untuk mengukur parameter udara yang berbahaya bagi kesehatan. Hasil implementasi menunjukkan bahwa informasi yang diberikan cepat, akurat, dan terintegrasi, lebih efisien dibandingkan metode konvensional seperti Indeks Standar Pencemaran Udara (ISPU) yang tidak memberikan informasi waktu nyata. Evaluasi dampak sosial menunjukkan peningkatan kesadaran masyarakat yang lebih proaktif dalam mengambil langkah preventif, seperti mengurangi aktivitas luar ruangan saat udara buruk. Dengan sistem ini, masyarakat dapat berpartisipasi langsung dalam pemantauan lingkungan, mendukung terciptanya lingkungan yang lebih sehat dan berkelanjutan, serta menunjukkan potensi teknologi IoT dalam mengatasi masalah lingkungan di kawasan padat penduduk.
APLIKASI E-LEARNING BERBASIS WEB DENGAN METODE WATERFALL STUDI KASUS : SMA 1 NAGRAK: Rekayasa Perangkat Lunak Valiant, Lucky; Asriyanik; Ridwan, Mohamad
Informasi Interaktif : Jurnal Informatika dan Teknologi Informasi Vol 7 No 3 (2022): JII Volume 7, Number 3, September 2022
Publisher : Program Studi Informatika Fakultas Teknik Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jii.v7i3.6

Abstract

SMAN 1 Nagrak merupakan sekolah menengah atas yang berada diprovinsi Jawa Barat khususnya Kabupaten Sukabumi. Pada masa pandemi seperti saat ini, kegiatan belajar mengajar mewajibkan dilakukan secara berani. Hal dikarenakan sebagai upaya mencegah penyebaran virus covid-19 dalam bidang pendidikan. Hal ini tentunya menjadi penghambat proses pembelajaran, oleh karena itu dibutuhkan suatu media pembelajaran e-learning untuk mengatasi masalah tersebut. Dalam rangka memenuhi pembelajaran e-learning khususnya di SMAN 1 Nagrak, penulis mengenakan metode air terjun yang merupakan pengembangan model rekayasa perangkat lunak. Dalam penelitian ini, menghasilkan sebuah aplikasi e-learningbebasis web sebagai penunjang pembelajaran secara online . Dengan adanya aplikasi e-learning ini diharapkan proses pembelajaran dapat berjalan dengan baik serta memudahkan guru untuk memberikan materi pembelajaran, latihan soal ujian dan pengumpulkan tugas terhadap siswa dalam pandemi ini.
Operational Load on Material Handling Process Stockyard Ship to Port Using Field Tests Sugeng, Sunarso; Ridwan, Mohamad; Khristyson, Samuel Febriary
TEKNIK Vol 46, No 3 (2025): Vol 46, No 3 (2025): July 2025 Publication in-progress
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v46i3.50110

Abstract

Since all equipment needs to be handled correctly, the equipment handling procedure is crucial. in order to ensure the equipment's safe arrival at its destination and to preserve its quality and condition.The method used in this research to analyze the calculation using experiment set with sensor data and observation. Finding the optimal operational load process value during material loading and unloading at the Panjang Port is the aim of this study. From analyze results horizontal direction movement speed of 2 km/h has a pressure value of 37 kPa with a distance of 376 mm from the center end of the pipe being unloaded, across the stress value is at 167 kPa with a stretch distance of less than 300 mm, longitudinal direction of 45 kPa.
Co-Authors Alamsyah, Denan Fajar Andalasari, Lilis Andi, Muhammad Ikhsan Ari Wijayanti Asdani Soehaimi Asriyanik Asriyanik . Atmawidjaja, Rudie Rachmat Budi Aswoyo, Budi Darmawan Sundayana Dendy Sundayana Diah Kirana Kresnawati, Diah Kirana Dwiyatni, Aulia Edwin Adriansyah Emrizal Fahmi Aldiamar, Fahmi Fatchurrahman, M. Fitriani Agustin Gaffar, Mohammad Rizal Gunawan, Deril Dwi I Gede Puja Astawa I Gusti Agung Wahyu Adrian Ica Olivia Febriyanti K, Irvan K, Johanes H Kafabih, Abdullah Kurniajaya, Moga Kusumah, Febrianto Surya Lestari, Paramita Eka Wahyu Linandar Tanuwijaya lucky valiant Luthfi Amirul Hisyam Maretha Ruswiansari, Maretha Merliana, Rizka MP, Alfyansyah Muhamad Lutfi Muhammad Rusli Nadziroh, Faridatun Nazwa Triwidia Agripina Nisfa, Faridatun Noviani, Bunga Cahya Nur Edy Suminarti Odang Rusmana Okkie Puspitorini, Okkie Oktora, Andre Pasaribu, Veta Lidya Delimah Puspa Eosina R. Rusli Raeshard Dzikra Rifandy Raihan, Dafa Ramadhan, Ridzki Fadillah Rina Muthia Harahap, Rina Muthia Rita Rahmaniati Robbany, Inayatur Ruwirohi, Jan Everhard S.R Sinung Baskoro Sa'adah, Nihayatus Sabina, Clara Salwadilla, Ika Shafira Samuel Febriary Khristyson Sarumpaet, Erik Rolando Setiani, Reka Indah Sunarso Sugeng Sutopo Sutopo Tanuwijaya, Linandar Tatang Padmawidjaja Toko, Gigih Prastyan Tri Budi Santoso Tri Cahyadi valiant, lucky Wahyu, Gilang Arya Wasista, Sigit Windra Aini Y Siahaan, Rosna Yudha, Kurniawan Try