cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Alfian Qomaruddin
Contact Email
alfian@trunojoyo.ac.id
Phone
-
Journal Mail Official
rekayasa@trunojoyo.ac.id
Editorial Address
Universitas Trunojoyo Madura Jl. Raya Telang - Kamal, Bangkalan Kode Pos 69162
Location
Kab. bangkalan,
Jawa timur
INDONESIA
REKAYASA
Published by Universitas Trunojoyo Madura
ISSN : 02169495     EISSN : 25025325     DOI : https://doi.org/10.21107/rekayasa
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Computer Science & IT Electrical & Electronics Engineering Engineering Physics
This journal encompasses original research articles, review articles, and short communications, including: Science and Technology, In the the next year publication, Rekayasa will publish in two times issues: April and Oktober.
Arjuna Subject : -
Articles 20 Documents
 1   2 
Search results for , issue "Vol 14, No 2: Agustus 2021" : 20 Documents clear
Analisis Faktor-Faktor Pemilihan Lokasi Markas Komando Terhadap Keberhasilan Teritorial Pada Suatu Wilayah Teritori X Costa, Frejohn da; Widyoutomo, Antonius
Rekayasa Vol 14, No 2: Agustus 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i2.10999

Abstract

Markas Komando adalah sebuah tempat yang digunakan sebagai tempat kedudukan pemimpin tentara (pandu, badan perjuangan) untuk memberi perintah, memimpin suatu pasukan. Penulisan  ini dimaksudkan untuk mengidentifikasi dan menganalisis faktor-faktor pemilihan lokasi Markas Komando terhadap keberhasilan teritorial pada suatu daerah teritori X. Secara khusus menganalisis apakah terdapat dampak signifikan antara faktor kedekatan infrastruktur (X1), lingkungan pemerintah daerah (X2) dan anggaran terhadap keberhasilan teritorial (X3). Metode analisis data penelitian ini merupakan analisis regresi linier berganda. Hasil penelitian menunjukkan bahwa kedekatan dengan infrastruktur, lingkungan pemerintah daerah, dan alokasi anggaran berpengaruh signifikan terhadap keberhasilan Markas Komando (Y = 0,145 + 0,327X2 + 0,272X1 + 0,398X3). Berdasarkan hasil uji t, variabel kedekatan dengan infrastruktur berpengaruh signifikan terhadap keberhasilan markas komando.
Stress Distribution Analysis of DKDT Tubular Joint in a Minimum Offshore Structure Noviyanti, Irma; Prastianto, Rudi Walujo; Murdjito, Murdjito
Rekayasa Vol 14, No 2: Agustus 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i2.10511

Abstract

A marginal field defines as an oil and/or gas field that has a short production period, low proven reservoir, and could not be exploited using existing technology. As the demand for oil and gas keeps increasing, one of the solutions to tackle the issues is to build the modified platform which came to be more minimalist to conduct the oil and gas production in the marginal field. Naturally, the minimum offshore structures are cost less but low in redundancy, therefore, pose more risks. Although the study on the minimum structures is still uncommon, there are opportunities to find innovative systems that need to have a further analysis toward such invention. Therefore, this study took the modified jacket platform as a minimum structure, and local stresses analysis by using finite element method is applied for the most critical tubular joint with multiplanarity of the joint is taking into account. The analysis was carried out using the finite element program of Salome Meca with three-dimensional solid elements are used to model the multiplanar joint. Various loading types of axial force, in-plane bending moment, and out-of-plane bending moment are applied respectively to investigate the stress distribution along the brace-chord intersection line of the tubular joint. The results show that the hotspot stress occurred at a different point along each brace-chord intersection line for each loading type. Finally, as compared to the in-plane bending moment or out-of-plane bending moment loading types, the axial force loading state is thought to generate greater hotspot stress.
Hubungan Kondisi Rajungan (Portunus Pelagicus) dan Ekosistem Padang Lamun di Perairan Pulau Poteran Madura Rifadillah Hisamuddin; Iqbal Wicaksono; Achmad Fachruddin Syah
Rekayasa Vol 14, No 2: Agustus 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i2.10479

Abstract

Crab is one of the marine biota which has important economic value, meanwhile, seagrass beds are one of the marine resources that have many benefits for marine life and the coastal environment. This study aims to determine the catch of small crabs and the condition of the seagrass beds in Poteran Island waters. This research uses Sentinel-2A image data downloaded from the earthexplorer.usgs.gov website; Earth Map (RBI) scale 1: 1,000,000, and field data in the form of identification of seagrass objects and water quality. The results showed that the number of female crabs that were caught was more than the male crabs. Based on the width of the carapace, the catch is categorized as unfit to catch. However, based on the weight measurement, the crabs that were caught were categorized as fit to catch. The results of the regression analysis showed that the length and weight of the crab had a fairly good relationship with a regression coefficient of 0.63. The length of the crab is more dominant than the weight. This is indicated by the negative allometric growth pattern (b less than 3). Many crabs are distributed in areas close to seagrass beds. Two types of seagrass were found, namely Enhalus acoroides and Halodule uninervis with rich or healthy conditions. Good water quality is believed to be one of the factors that support the growth of seagrass beds in the waters around Poteran Island.
Strategi Pengembangan Komoditas Pangan Menuju Ketahanan Pangan Nasional Dengan Pendekatan SWOT-ISM-BSC Herjito, Agus; Setiawan, Daniel
Rekayasa Vol 14, No 2: Agustus 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i2.10864

Abstract

Sampai saat ini Ketahanan Pangan Nasional Indonesia masih berada pada kondisi yang belum stabil. Kondisi ini memberikan gambaran nyata bahwa ada permasalahan yang dialami bangsa Indonesia di bidang ketahanan pangan. Karena pada posisi keberadaan wilayah Indonesia yang sangat strategis maka semestinya Indonesia menjadi bangsa dan negara yang makmur dan mandiri dalam hal sumber pangan. Penelitian ini bertujuan untuk mengembangan strategi kebijakan pengembangan komoditas pangan menuju ketahanan pangan nasional. Dalam mendukung penelitian ini digunakan metode SWOT, Interpretative Structural Modeling (ISM), dan Balanced Score Card (BSC). Metode SWOT digunakan untuk merumuskan strategi berdasarkan identifikasi faktor internal dan faktor eksternal yang berpengaruh signifikan berbasis model Mckinsey 7S dan PEST. Selanjutnya metode ISM digunakan untuk menentukan prioritas strategi. Metode BSC digunakan untuk menentukan rencana implementasi dan pemetaan dari strategi-strategi yang dirumuskan. Pengembangan strategi kebijakan pengembangan komoditas pangan menuju ketahanan pangan nasional berdasarkan hasil penelitian terdiri dari 10 (sepuluh) strategi utama yang terdiri dari Strategi SO-1,2,3, Strategi WO-1,2,3, Strategi ST-1,2,3 dan Strategi WT-1. Diharapkan kesepuluh strategi hasil penelitian ini dapat meningkatkan pengembangan komoditas pangan Indonesia menuju Ketahanan Pangan Nasional yang stabil dan sustainable. 
Analisis Pola Rekrutmen Prajurit TNI AL Tahun 2020 Pada Satuan Pendidikan Sorong Dalam Rangka Penyediaan Prajurit Koarmada III Lakipundu Rassa, Andri Yusuf Kristmas; Lestari, Amin
Rekayasa Vol 14, No 2: Agustus 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i2.11293

Abstract

The study aims to improve the quality and quantity of Indonesian Navy human resources in Eastern Indonesia, especially in the working area of the Fleet Command III, so the recruitment of Indonesian Navy soldiers will fill the needs of personnel in Eastern Indonesia. The object of research in the form of individuals are the officers or personnel officers who handle the recruitment of candidates of the Indonesian Navy soldiers. As for the object of research in the form of organizations, namely Spersal, Lapetal Disminpersal, Panda Lantamal X Jayapura, Panda Lantamal XI Merauke and Panda Lantamal XIV Sorong. This study uses the following analytical techniques: grouping data based on the characteristics of informants, conducting a qualitative approach to find out in detail how descriptive study of recruitment patterns in each Panda, then combining literature review, data from the reality in the field, and the experience of informants to gain a general knowledge of the recruitment pattern in the Sorong Education Units. The results showed that the recruitment pattern at the Sorong Educational Service which supervised Panda Lantamal X Jayapura, Panda Lantamal XI Merauke and Panda Lantamal XIV Sorong, had been going well, regardless of the obstacles they faced.
Kinetika Reaksi Pembuatan Sabun dan Pemurnian Gliserol dari Limbah Alkali Sabun: Review Panjaitan, Jabosar Ronggur Hamonangan
Rekayasa Vol 14, No 2: Agustus 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i2.10626

Abstract

Soap is a product that commonly used as a cleanser and can be made through a saponification reaction between fat and base with glycerol as byproduct. The reaction kinetics of soap production is the study of how fast the soap production and it is an important part in reactor modeling and the optimization of operating conditions. On the other hand, glycerol is a byproduct of soap production which can be applied into various derivative products so that the glycerol purification process from soap production process is important to do. This review discusses the reaction kinetics of soap production and glycerol purification from alkaline soap waste. In general, the kinetics curve of the soap-making reaction consists of three stages, namely the induction period, the constant velocity period and the decreasing velocity period where the base concentration in the soaping reaction was related to the reaction rate. The lower base concentration used, the soap production reaction will slower. The soap production reaction had low activation energy and identified as second order reaction. In the process of purifying glycerol from alkaline soap waste, three main stages were generally used, namely neutralization, alcohol separation and glycerol purification.
Analisis Material Efoxy EF150K Terhadap Temperatur dan Kelembaman Tinggi Pada Komponen Charger Mobil Listrik Shieddieque, Apang Djafar; Abdulah, Amri; Rajab, Dede Ardi; Jatira, Jatira; Rag, Yoon Jung; Kil, Sohn Chang; Kurnia, Tata
Rekayasa Vol 14, No 2: Agustus 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i2.10244

Abstract

Electric cars have now been made and developed by famous car manufacturers outside of Indonesia. Of course electric cars have batteries that must be recharge. Inside the electric car charger there is a controller which is one of the components, which is an epoxy coated capacitor. The faster the charger, the higher the temperature will be, to deal with this problem, it is necessary to increase the performance of the capacitor to increase the temperature and humidity resistance. Then from this explanation the researchers will test the EF150K epoxy coating on the Disc Ceramic Capacitor (DCC), by using epoxy coating thickness testing by using 3 samples the results obtained are on average 0.8 mm, Pressure Cycle Test (PCT) using 20 samples with  conditions temp: 121 °C, p: 2 bar for 48 hour, obtained average capacities and insulance resistance before PCT testing C: 2155,4pF, IR: 141540Ω and after C: 2238,2 pF, IR: 147140 Ω, and humidity test using 20 sample with condition 95% RH, temp: 40°C for 504h obtained average capacities and insulance resistance before humidity test C: 2.157,89 pF, IR: 119560 Ω and after C: 2.233,63 pF, IR: 123160 Ω. The use of EF150K epoxy is very well used as a DCC capacitor coating, because the coating is resistant to temperatures up to 121 ° C with a pressure of 2 bar, and withstands temperatures up to 40 °C with 95% RH. 
Techno-Economic Feasibility Assessment of Solar PV Water Pumping System In Dryland: Case Study In Madura Amir, Nizar
Rekayasa Vol 14, No 2: Agustus 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i2.10442

Abstract

Indonesia has enormous solar radiation potential, and it can be converted to electrical energy by utilizing solar PV systems. Mainly the irrigation of paddy rice fields in Indonesia dependent on a diesel-powered water pumping system. A solar PV system can replace this method, and it generates several benefits. The present study proposed the utilization of a solar PV system to drive the water pump based on a 100% renewable power supply. The technological and economic viability assessment of solar PV water pumping system to irrigate paddy rice filed at Telang village, Bangkalan, Indonesia, is investigated. The HOMER software has been used to generate the optimal configuration of a renewable system. Initial capital, net present cost, and cost of energy will evaluate as economic assessment criteria. The solar PV and diesel generator water pumping system also compared. The results showed that for water pumping systems, a solar PV system is more cost-effective than a diesel generator. It has lower annual operational and maintenance costs, 100% renewable energy penetration, and free energy cost.
Review Analisa Kondisi Optimum Dalam Proses Pembuatan Biogas Kurniati, Yuni; Rahmat, Anni; Malianto, Bilal Ivandra; Nandayani, Dita; Pratiwi, Wiwit Sri Werdi
Rekayasa Vol 14, No 2: Agustus 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i2.11305

Abstract

Biogas is a gas produced by anaerobic activity with the process of decomposition (degradation) of organic materials. Biogas can be produced from several sources of methane, including domestic (household) waste, biodegradable waste, animal waste, or organic wastes that can be decomposed under anaerobic conditions. This study aims to determine the effect of various conditions (time, pH, stirring time and the type and concentration of inoculum) on biogas production and to analyze the optimum conditions in the biogas production process. This research was conducted with the factors that influence the process of making biogas. Based on the analysis results obtained several processes in the production of biogas, among others, hydrolysis, acetogenesis, asedogenesis, and methanogenesis. The results of the previous experiment were the optimal biogas research from tofu liquid waste, biogas produced with a volume of 26,700 ml, within 36 days and was obtained using an operating temperature of 35-40ᵒC and using cow dung inoculum, and using a 36 liter digester.
Struktur Komunitas Ekosistem Pesisir (Lamun dan Mangrove) di Desa Sulamu Nusa Tenggara Timur Ariandini, Yovita; Faiqoh, Elok; Hendrawan, I Gede
Rekayasa Vol 14, No 2: Agustus 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i2.10969

Abstract

East Nusa Tenggara Province (NTT) is an archipelago province located in the south of Indonesia has a sea area of 200,000 km2 (outside ZEEI) in it has marine resources and fisheries that can be developed for the benefit of the community. Seagrass and mangrove ecosystems play an important role for the environment both physically and ecologically. To know the condition of the ecosystem, it is necessary to conduct research on the community structure of seagrass and mangrove ecosystems. This research was conducted in Sulamu Village, Kupang waters in November 2018. Each ecosystem is sampling as many as 3 stations with 3 stations each. From the results obtained, found 7 species of seagrass in salamu village waters namely Halodule pinifolia, Thalassia hemprichii, Cymodocea serrulate, Enhalus acoroides, Halophila ovalis, Cymodocea rotundata, and Halodule uninervis. Seagrass density obtained is the highest 2847 tgk/m2 and the lowest 1392 tgk/m2 with stable community conditions. In mangrove ecosystems found 11 types of mangroves found in sulamu waters namely Avicennia alba, Osbornia octodonta, Bruguiera parviflora, Aegiceras corniculatum, Rhizopora mucronata, Sonneratia alba, Rhizopora apiculata, Xylocarpus granatum, Limnitzera racemosa, Gymnanthera paludosa and Nypa frutican. The mangrove community structure in the waters of Salamu Village is unstable and dominating.

Page 1 of 2 | Total Record : 20

 1   2 

Filter by Year

2021 2021


Reset
Filter By Issues
All Issue Vol 18, No 3: Desember, 2025 Vol 18, No 2: Agustus, 2025 Vol 18, No 1: April 2025 Vol 17, No 3: Desember, 2024 Vol 17, No 2: Agustus, 2024 Vol 17, No 1: April, 2024 Vol 16, No 3: Desember 2023 Vol 16, No 2: Agustus 2023 Vol 16, No 1: April 2023 Vol 15, No 3: Desember 2022 Vol 15, No 2: Agustus 2022 Vol 15, No 1: April 2022 Vol 14, No 3: Desember 2021 Vol 14, No 2: Agustus 2021 Vol 14, No 1: April 2021 Vol 13, No 3: December 2020 Vol 13, No 2: August 2020 Vol 13, No 1: April 2020 Vol 12, No 2: Oktober 2019 Vol 12, No 1: April 2019 Vol 11, No 2: Oktober 2018 Vol 11, No 1: April 2018 Vol 10, No 2: Oktober 2017 Vol 10, No 1: April 2017 Vol 9, No 2: Oktober 2016 Vol 9, No 1: April 2016 Vol 8, No 2: Oktober 2015 Vol 8, No 1: April 2015 Vol 7, No 1: April 2014 Vol 6, No 2: Oktober 2013 Vol 6, No 1: April 2013 Vol 5, No 2: Oktober 2012 Vol 5, No 1: April 2012 Vol 4, No 2: Oktober 2011 Vol 4, No 1: April 2011 Vol 3, No 2: Oktober 2010 Vol 3, No 1: April 2010 Vol 2, No 2: Oktober 2009 Vol 2, No 1: April 2009 Vol 1, No 2: Oktober 2008 Vol 1, No 1: April 2008 More Issue