Jurnal Teknik
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Jurnal Teknik ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 65-74
Author(s):  
Indhitya Padiku

The low interest of prospective students in study programs at universities could be influenced by internal factors within the study program. These factors become the main variables in assessing the condition of the study program. For this reason, it is necessary to classify the internal conditions of the study program. A good method is needed in terms of accuracy and minimal misclassification to obtain the final classification results of the assessment. The purpose of this research is to classify the internal conditions of the study program. Classification of the internal conditions of the study program was carried out using the Naive Bayes Classifier (NBC) method which is a simple form of Bayesian Network with the assumption that all features are independent of each other. The NBC method shows an overall superior performance in terms of accuracy and misclassification rate. The NBC method can be used to determine the internal conditions of the study program, which could help identify factors that need to be addressed to increase the interest of prospective students enrolling in the study program.


Jurnal Teknik ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 75-84
Author(s):  
Steven Humena ◽  
Frengki Eka Putra Surusa ◽  
Amelya Indah Pratiwi ◽  
Rifat Kombu

The Polohungo Micro-hydro Power Plant (PLTMH) in Polohungo village, Tolangohula District, Gorontalo Regency has several components, namely intake, headrace, forebay, tailrace, penstock, turbines, mechanical equipment systems, mechanical transmission systems, and generators. The increase of demand for electrical power and the limited capacity of the generator was causing suboptimal plant operation. This study aims to evaluate the performance of the 40 kW PLTMH against the electrical load in Polohungo Village, Gorontalo Regency. The evaluation stage began with the calculation of the technical parameter data of the equipment, which was then compared with parameters obtained from measurement. The evaluation results show that the overall condition of the main components such as generators, turbines, and the generator control system was still working well even though there was no history of maintenance. There was a power difference of 12.212 kW or 55.03% between the real-world generated power and theoretically calculated power based on turbine design water flow. Therefore, PLTMH Polohungo was not operating optimally when handling small-scale power loads, where the amount of power generated by theoretical calculations is greater than the amount of power generated when the generator is operating with a water flow rate of 0.02865 m3/second.


Jurnal Teknik ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 53-64
Author(s):  
Lydia Surijani Tatura ◽  
Rahma K. Gani

Puncak Dulamayo Nature Tourism, which is located in Gorontalo Regency, Gorontalo Province, is one of the favorite tourist attractions since it opened at the end of 2017. However, it was not well managed and organized, the location lacked several facilities such as inadequate parking space, lack of lodging, landscape furniture was still very lacking, there were no playground facilities for children and other facilities. This research aims to arrange of the Dulamayo peak natural tourism area were carried out by applying the principles of Tropical Architecture, by utilizing contoured land. This study used descriptive qualitative and quantitative research methods. Collecting data through literature review and direct observation in the field and interviews. The data was collected using literature review, interviews, and direct observation in the field. The results showed that the concept of managing and organizing the Puncak Dulamayo Nature Tourism destination with the principles of Tropical Architecture could be used as a reference in developing the Puncak Dulamayo Nature Tourism Area as one of the natural tourism destinations which could become a tourism attraction in Gorontalo Province.


Jurnal Teknik ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 85-95
Author(s):  
Khairil ◽  
Hari Aspriyono

The performance assessment of Civil Servants at the Bengkulu Province Communication, Informatics, and Statistics Service (Diskominkotik) process has utilized an e-performance application. However, the assessment of daily workers' performance is not included, which means evaluating their performance and competence would take a long time. This study aims to determine daily workers to get the best performance rewards using the Simple Additive Weighting (SAW) method. The research method used was the waterfall method, supported by data from observations, interviews, and questionnaires. Unified Modeling Language (UML) was used to analyze and design the system and in the coding stage, Microsoft Visual Studio 2010 software connected to a MySQL database was used, and in the testing stage, a Black-box testing approach was employed. The results showed that the implementation of the SAW method in the decision support system application could speed up the process of evaluating the performance of daily workers at Bengkulu Province Diskominkotik. Furthermore, daily workers’ performance appraisal became more objective because it involves the participation of many parties so that the results of the best daily worker employee performance appraisal can be accepted by various parties.


Jurnal Teknik ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 23-31
Author(s):  
Sigit Agung Priyono ◽  
Hammam Rofiqi Agustapraja

Light brick waste is fragments or pieces of scrap leftover during the installation of lightweight bricks which are often allowed to pile up and becoming garbage in the surrounding area. The waste is difficult to recycle and has a very low selling value. This study aims to assess the compressive strength of mixed composition concrete specimens using lightweight brick waste on the quality of K-250 concrete aged 7 days as a mixture of fine aggregate concrete so that it becomes a product that has better-added value for the community. The research method used in this research is SNI for concrete based on data from literature and the test was carried out in the UNISLA laboratory. The results showed that the use of a 0% mixture of lightweight brick waste resulted in compressive strength of 21.78 Mpa, 3% mixture yielded compressive strength of 18.87 Mpa, 5% mixture yielded compressive strength of 24.39 Mpa, and 7% mixture yielded compressive strength of 26.00 Mpa.


Jurnal Teknik ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 32-41
Author(s):  
Harun Musa ◽  
Rahmayanti

Garbage collection locations scattered at various points often make it difficult for citizens to find the nearest garbage collection location. Therefore, it is necessary to provide media that could help the public in finding the nearest garbage collection location. This study aims to design a geographic information system of garbage collection locations in the Pohuwato Regency area. This system will utilize tools that could be accessed for free, namely Google Maps so that the locals readily access the information needed. The method used in this research was a descriptive method. The results showed that people in Pohuwato Regency could find garbage collection locations in each sub-district which was detected through the geographic information system and thus made it easier for people to find the nearest garbage collection point.


Jurnal Teknik ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 1-11
Author(s):  
Dwi Anung Nindito ◽  
Adri Pratama ◽  
Raden Haryo Saputra

Archimedes Spiral Turbine has characteristic of blade which can catch water flow well. It uses two force concepts, i.e. drag and lift forces. Flow direction change greatly influences Archimedes Spiral turbine performance. Therefore, it needs flow direction system in form of truncated cone and tail vane. Archimedes Spiral turbine with flow direction system generated Cp value of 0,19–0,22 and TSR value between 1,76–1,85. Torque value obtained is between 0,013–0,017 Nm on RPM value range of 28,64–33,60. Limitation between truncated cone with Archimedes Spiral turbine blade causes vortex flow at the back of blade to decrease. Truncated cone addition can enlarge flow catchment force. When flow speed captured by Archimedes Spiral turbine increase, resulting in a compressive force on enlarged. The addition of tail vane capable of passing the flow vortex is elongated to downstream. The flow of vortex which is passed on inhibits the rotation of the turbine blades and result in a compressive force on the turbine is enlarged. Compressive force on blade which grows bigger causes torque value to increase as well. The increasing torque value causes drag force concept used in Archimedes Spiral turbine with flow direction system higher than lift force concept.


Jurnal Teknik ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 42-52
Author(s):  
Dian Novian ◽  
Arip Mulyanto ◽  
Galang Leoni Yagri MS Punu ◽  
Indah Wardati

Communication between members of the community within the Neighborhood Association (RT) is often hampered due to the activities of each resident, making it difficult for the residents to share important information with each other. This study aims to build a mobile-based application as a communication medium for citizens in the RT environment. The research method used is the waterfall system development method which includes requirements analysis and definition, system and software design, implementation and unit testing, integration and system testing, and operation and maintenance. The results show that the mobile-based E-Warga Application can be used as a communication medium for citizens. The mobile-based E-Warga application helps the public to share important information, access various services and information needed.


Jurnal Teknik ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 12-22
Author(s):  
Nurmiah ◽  
Rahmayanti

According to existing data, stunting in Pohuwato Regency prevalence is still high, hence the plan for a stunting-free house is needed. The purpose of this study was to determine the description and the influencing factors to find a strategy for planning a stunting-free house. So that the planning of this stunting-free house can fulfill the needs of village development as well as supporting the Pohuwato government stunting-free program. This research is a retrospective study with a case-control design. Data were collected by semi-structured interviews with mothers of children under five using questionnaire sheets. There are 7 (seven) samples in each case group. From the results of the study, it was found that 3 (three) dominant factors were in the houses of stunting sufferers which could be used as a reference for stunting-free house designs. The most dominant indicator is the land indicator in the OC:BC comparison assessment and the use of the front of the house border. The second indicator that is very dominantly influential is the condition of the sanitation system and the height of the floor slab. The third influential factor is user activity with the assessment of natural lighting systems for stunting-free homes.


Jurnal Teknik ◽  
2020 ◽  
Vol 18 (2) ◽  
pp. 159-170
Author(s):  
Anisha Dian Iswahyuni

The packaging design of a product is a special attraction for consumers. The right design would be able to increase sales of a product. The purpose of this research is to get the best packaging by designing or creating a packaging concept according to the needs and desires of consumers based on the packaging analysis used. The packaging development method is carried out with a product development approach and value engineering by improving performance based on consumer desires using the FAST method (Function Analysis System Technique). Based on the results of the identification of consumer needs, the testing phase, and the selection of alternative packaging development concepts to the concept analysis, the final product for the selected breadfruit stick packaging is a custom packaging printing made of solid aluminum foil pouch, with the custom size of 14x23cm, printed sticker, full printed design, net size 100-200 grams, packaging basic color of gold, original flavor variant, the price ranges from Rp. 10,000 to Rp. 20,000, using a seal (sealer) and having PIRT and Halal certification. With the proposed packaging, it is hoped that the sales of breadfruit stick products would be increased.


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