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<![CDATA[Sistem Infomasi Pengaduan Masyarakat Desa Berbasis Android ]]>
<![CDATA[Mutaqin, Roisyatul]]>;
<![CDATA[Yusrotun, Anis]]>;
<![CDATA[Sya'roni, Wahab]]>
<![CDATA[ Rekayasa Vol 14, No 3: Desember 2021 ]]>
Publisher : <![CDATA[Universitas Trunojoyo Madura ]]>
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DOI: 10.21107/rekayasa.v14i3.11413
<![CDATA[Public service is an important thing that must be considered in the development of an autonomous region, because it is directly related to the welfare of the community as well as in accordance with basic reforms in the field of government. However, community services in the Sumberanyar village, especially in terms of complaints such as complaints about social assistance, infrastructure and other complaints are still done manually and have not used an adequate system, where the Sumberanyar village community needs to come to the village office to convey their aspirations and complaints and in Sumberanyar village there is no means to convey aspirations and complaints so that public aspirations or complaints cannot be carried out optimally and data on community complaints are not well documented. Therefore, it is necessary to have an application that can make it easier for the community to make complaints, the Android-based information system for community service in Sumberanyar village, Paiton district, is a solution to overcome the problems that have been described. This application was built using the Waterfall SLDC (Software Development Life Cycle) model, from the results of this study it was concluded that the application is very suitable for use by the public to make complaints and convey aspirations and all features in the application can be used properly.]]>
<![CDATA[Analisis Kinerja Mikro Turbin Gas Bahan Bakar LPG (Liquefied Petroleum Gas) ]]>
<![CDATA[Qardhawi, Youssuf]]>;
<![CDATA[Ghaffar, Nurshofi]]>;
<![CDATA[Prasetyo, Eko]]>;
<![CDATA[Hermawan, Rudi]]>;
<![CDATA[Pane, Erlanda Augupta]]>
<![CDATA[ Rekayasa Vol 14, No 3: Desember 2021 ]]>
Publisher : <![CDATA[Universitas Trunojoyo Madura ]]>
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DOI: 10.21107/rekayasa.v14i3.12230
<![CDATA[ The Micro Gas Turbine is a device that functions to convert chemical energy from fuel from the combustion process into mechanical energy, which is then converted back to a generator to become electricity. This study aims to obtain the results of performance testing as well as the results of the comparison analysis of the Gas Turbine Micro from the design and testing of the assembly tool. The fuel used in this Gas Micro Turbine is LPG (Liquefied Petroleum Gas). The advantages of LPG are it is easy to obtain, has a high octane value so that the power generated is greater, has a high vapor pressure so there is no need to use a pump to drain it. The result of this research is that the addition of a fire source can increase the turbine inlet temperature although it is not significant because the fire does not burn continuously due to the compressor rotation being too forceful. In the first and second actual tool tests, the temperatures were 317.48K and 323.75 K, different from the results of the analysis on the ANSYS software where the temperature was 766 K and 793 K.]]>
<![CDATA[Analisis Pengaruh Faktor Kinerja Terhadap Produktivitas dan Optimasi Dinas Pembekalan TNI AL ]]>
<![CDATA[Masriansyah, Masriansyah]]>;
<![CDATA[Purnomo, Untung]]>;
<![CDATA[Sirait, Binsar Mangaratua]]>
<![CDATA[ Rekayasa Vol 14, No 3: Desember 2021 ]]>
Publisher : <![CDATA[Universitas Trunojoyo Madura ]]>
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DOI: 10.21107/rekayasa.v14i3.11017
<![CDATA[The Navy Debriefing Service is a central implementing agency whose main task is a series of supply chain management, which has several problems related to the uneven competence of Disbekal personnel, limited human resources and lack of creation, innovation, improvisation, as a result of the large number of personnel who have been around for a long time. served in Disbekal. So the purpose of this research is to analyze the influence of competence and the influence of organizational culture partially on the work productivity of Disbekal. As well as analyzing the influence of competence and organizational culture simultaneously on the work productivity of Disbekal. Descriptive verification research method with data analysis techniques using Path Analysis. The number of samples is 88 personnel, with data collection through stratified random sampling. The results showed that there was a significant influence between competence, and organizational culture on the work productivity of the TNI AL debriefing service partially and simultaneously. Where the direct influence of the competence variable is 30.2%, and the organizational culture variable is 18.5%. The total effect is 68.1% overall, while 39.1% is the influence of other factors that were not researched.]]>
<![CDATA[Pengembangan Nominal Aturan Fuzzy pada Metode Fuzzy Mamdani untuk Menyeimbangkan Beban Tiga Phasa pada Saluran Distribusi Tegangan Menengah ]]>
<![CDATA[Djagolado, Martinus W]]>;
<![CDATA[Amirullah, Amirullah]]>;
<![CDATA[Saidah, Saidah]]>
<![CDATA[ Rekayasa Vol 14, No 3: Desember 2021 ]]>
Publisher : <![CDATA[Universitas Trunojoyo Madura ]]>
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DOI: 10.21107/rekayasa.v14i3.10655
<![CDATA[The use of electrical equipment on the customer side with low voltage absorbs unbalanced power. The load unbalances in each phase will result in an unbalanced current, resulting in a phase voltage shift in the secondary coil of the 20 kV/380 V medium voltage transformer. Shifting the voltage in the distribution transformer phase, then causes the flow of current in the transformer neutral wire causing losses. This paper proposes a fuzzy logic method with the Mamdani fuzzy inference system (FIS) to balance three-phase load currents at seven feeders of 20 kV medium voltage distribution at PLN Rayon Taman Jawa-Timur. The feeders are Ngelom, Tawang Sari, Geluran, Bringin, Masangan Kulon, Palm Residence, and Pasar Sepanjang. There are three input variables used, namely the load current in phase R, phase S, and phase T respectively. There are three output variables in one FIS block, namely changes in load current in phase R, phase S, and phase T respectively. With the number of fuzzy rules as many as 509 rules, the proposed method is able to produce the lowest load current unbalance value of 1.6% at Palm Residence Feeders. The development of a nominal (number) of fuzzy rules in the Fuzzy Logic Method with FIS Mamdani is able to reduce the value of unbalance load current at the 20 kV medium voltage distribution feeder better than the method proposed by previous researchers.]]>
<![CDATA[Efek Koefisien Transmisi akibat Variasi Wave Stepness pada Hexagonal Artificial Reef ]]>
<![CDATA[Wirayuhanto, Harish]]>;
<![CDATA[Armono, Haryo Dwito]]>;
<![CDATA[Ridlwan, Asfafur]]>;
<![CDATA[Febrianto, Try]]>
<![CDATA[ Rekayasa Vol 14, No 3: Desember 2021 ]]>
Publisher : <![CDATA[Universitas Trunojoyo Madura ]]>
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DOI: 10.21107/rekayasa.v14i3.12485
<![CDATA[Waves that move towards the coast have an energy level that corresponds to the magnitude of the generating force. Waves with high energy intensity are dominantly destructive when they hit the coastal area. In order to reduce the destructive effect of waves, coastal protection structures are needed to dampen the wave energy. Artificial coral reef (artificial reef) is one type of structure that can reduce wave energy. Besides functioning as an artificial reef for marine ecosystem biota, but also as a submerged breakwater structure. This study was conducted to determine the relationship between wave stepness and the transmission coefficient produced by hexagonal artificial reefs with a model scale of 1:10. The test is carried out using regular waves with a range of H/gT2 values between 0.0007 – 0.006. The results of research conducted at the Marine Energy Laboratory of the Department of Marine Engineering, FTK ITS, show that an increase in the value of wave steepness correlates with an increase in the value of the transmission coefficient (Kt) for all tests and configurations. The 1D structure configuration has a lower transmission coefficient (Kt) than the 0D structure configuration for each variation of the test wave.]]>
<![CDATA[Perbandingan Neural Network Backpropagation dan Extreme Learning Machine pada Robot Manipulator ]]>
<![CDATA[Munadhif, Ii]]>;
<![CDATA[Pradhipta, Indan]]>
<![CDATA[ Rekayasa Vol 14, No 3: Desember 2021 ]]>
Publisher : <![CDATA[Universitas Trunojoyo Madura ]]>
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DOI: 10.21107/rekayasa.v14i3.10230
<![CDATA[Robotics technology and artificial intelligence devices are growing rapidly in the medical field. The work of medical workers will be made easier by the presence of this technology. It is also applied directly to patients. Patients suffering from variousdiseases, of course, need an appropriate solution. A robotic finger manipulator can be applied to a patient with disabilities to assist him in placing or retrieving items. In the manipulator robot, there are sensors, controllers, and actuators. The stimulation of the muscles in the forearm is detected by an electromyograph sensor. The resulting muscle stimulation is classified by the controller into servo motor movement. The motor represents the fingers. The classification method uses a neural network backpropagation and an extreme learning machine which is compared to the performance. Classification using neural network backpropagation has a success rate of 65.3%. While the classification using the extreme learning machine has a success rate of 78.7%.]]>
<![CDATA[Pengembangan Sistem Informasi Cuci Mobil Berbasiskan Website ]]>
<![CDATA[Rohmah, Maghfirotur]]>;
<![CDATA[Syafiih, M.]]>;
<![CDATA[Hudawi AS, Ahmad]]>
<![CDATA[ Rekayasa Vol 14, No 3: Desember 2021 ]]>
Publisher : <![CDATA[Universitas Trunojoyo Madura ]]>
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DOI: 10.21107/rekayasa.v14i3.11384
<![CDATA[The car wash business is growing. A wide selection of car washes, spread across various regions. The increasing number of cars will provide more opportunities for entrepreneurs to open up in the car wash industry, while also providing entrepreneurs with potential for opportunities in the car market. With so many customers owned by Fuji Lestari, it is very risky for errors to update data every day, because the current transaction processes in the place of business still do not use computers, including in recording the number of consumers and this makes it difficult for Fuji Lestari to find data from files stored and archived by the company. From the problems that have been described, the researchers propose a website-based car wash information system. The waterfall method was chosen as the method in this research to achieve the expected goals. From the research that has been carried out by the author regarding the Web-Based Car Wash Information System at Fuji Lestari, several conclusions can be drawn, namely the Web-Based Car Wash Information System at Fuji Lestari has been produced, and after testing 5 users, from the results of calculating the total percentage obtained a percentage of 91%. Therefore, this information system is categorized as very good and suitable for use at Fuji Lestari car wash business.]]>
<![CDATA[Aplikasi Structural Equation Modelling (SEM) pada Pola Kepemimpinan TNI AL ]]>
<![CDATA[Adijanto, Nugroho]]>;
<![CDATA[Judijanto, Judijanto]]>;
<![CDATA[Feriyanti, Nentin]]>
<![CDATA[ Rekayasa Vol 14, No 3: Desember 2021 ]]>
Publisher : <![CDATA[Universitas Trunojoyo Madura ]]>
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DOI: 10.21107/rekayasa.v14i3.11018
<![CDATA[In the era of globalization which is full of change and competition, an organization must show the best performance in order to survive through managing its resources through the right leadership. One indicator of the success of a leadership pattern is the creation of subordinate job satisfaction. With job satisfaction, a subordinate will be able to bring out his best abilities for the benefit of the organization. However, the existence of discipline enforcement efforts will affect the role of leadership patterns in realizing job satisfaction of subordinates in the organization. The purpose of this study is to identify the effect of leadership patterns on the job satisfaction of subordinates, and to identify this effect with the enforcement of discipline as a moderator. In this study, the types of leadership patterns observed were transformational leadership patterns, transactional leadership patterns, visionary leadership patterns and synergistic leadership patterns. Research data obtained from questionnaires distributed to respondents totaling 209 personnel who meet the requirements, then data processing is carried out using the structural equation modeling (SEM) method. The results of the SEM calculation show that without a moderating variable, discipline enforcement efforts, transformational leadership patterns and synergistic leadership patterns affect the job satisfaction of subordinates. Meanwhile, with efforts to enforce discipline, the transactional leadership pattern variable also has an influence on the job satisfaction of subordinates.]]>
<![CDATA[Effects of Dietary Salt-Based Minerals and Phosphorus Supplements on Mean Body Weight, Survival Rate and Feed Conversion Ratio of White Shrimp Reared In Brackish Water ]]>
<![CDATA[Amir, Nizar]]>;
<![CDATA[Efendy, Makhfud]]>;
<![CDATA[Hidayat, Agriananta Fahmi]]>
<![CDATA[ Rekayasa Vol 14, No 3: Desember 2021 ]]>
Publisher : <![CDATA[Universitas Trunojoyo Madura ]]>
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DOI: 10.21107/rekayasa.v14i3.11808
<![CDATA[This study aimed to examine the impact of dietary salt-based mineral and phosphorus supplements on mean body weight, survival rate, and feed conversion ratio of Litopenaeus vannamei (white shrimp) reared in brackish water. The experiment was performed randomized design with three replicates in each treatment used twelve 40 L rectangular polymethyl methacrylate containers reared 45 days. The four treatments in this study were based on the concentration of salt-based mineral and phosphorus supplements (control or 0 ppm, one ppm, two ppm, and three ppm) in dietary of white shrimp. The results showed that using salt-based mineral and phosphorus supplements in dietary of white shrimp positively impacts mean body weight, survival rate, and feed conversion ratio. Increasing the concentration of salt-based mineral and phosphorus supplements increased mean body weight and survival rate and reduced feed conversion ratio of white shrimp. The mean body weight, survival rate, and feed conversion ratio of white shrimp were achieved with three ppm of dietary salt-based mineral, and phosphorus supplements reared 45 days was 5.98 gr, 88.57%, and 1.45, respectively.]]>
<![CDATA[Review Strategis Upaya Pengamanan Laut Nasional Menuju Keamanan Maritim dan Pengelolaan Ruang Laut Indonesia ]]>
<![CDATA[Suharyo, Okol Sri]]>;
<![CDATA[Bastari, Avando]]>
<![CDATA[ Rekayasa Vol 14, No 3: Desember 2021 ]]>
Publisher : <![CDATA[Universitas Trunojoyo Madura ]]>
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DOI: 10.21107/rekayasa.v14i3.13087
<![CDATA[The Republic of Indonesia as a world maritime country and an archipelagic country which has 17,504 islands whose territorial area is dominated by the ocean. As a maritime country, Indonesia has 4 (four) points that become international chokepoints, namely the Malacca Strait, Sunda Strait, Lombok Strait and the Ombai-Wetar Strait. Indonesia has established three Indonesian Archipelagic Sea Lanes (ALKI) for the peaceful passage of international shipping, which are guaranteed by international and national law. The Indonesian Maritime Security Agency is a Non-Ministerial State Institution whose position is under and directly responsible to the President and has the authority to enforce the law at sea and is justified by law, so that with the issuance of Law Number 32 of 2014 concerning Marine Affairs and Presidential Regulation Number 178 of 2014 concerning the Indonesian Maritime Security Agency, it can be interpreted that there is legal legitimacy for the Indonesian Maritime Security Agency in carrying out its duties, functions and authorities to carry out law enforcement against special crimes at sea. This study aims to explore Indonesia's strategic role in law enforcement at sea towards national maritime security and resilience. The method used is a literature study approach and the data analysis technique used is a qualitative data approach by conducting secondary data analysis to explain the findings obtained. This research produces findings in the form of an analysis of Indonesia's strategic role in law enforcement at sea towards maritime resilience and security both nationally and regionally.]]>
