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Jurnal Universal Technic
Published by Universitas Maritim AMNI Semarang
ISSN : 29626900     EISSN : 29626897     DOI : https://doi.org/10.58192/unitech
Core Subject : Science, Engineering,
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Transportation
Jurnal yang menjadi wadah publikasi tentang wawasan terkini dan utama yang berhubungan dengan ilmu teknik baik teknik mesin, teknik industri, teknik, lingkungan, teknik transportasi, dan teknik lainnya.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 56 Documents
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Studi Morfotektonik Daerah Ereunpalay, Kabupaten Tasikmalaya, Jawa Barat Siska Wulandari; Edy Sutriyono
Jurnal Universal Technic Vol. 2 No. 2 (2023): Oktober : Jurnal Universal Technic
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/unitech.v2i2.1355

Abstract

Morphotectonics is a major factor in controlling the development of landforms and has an influence on river systems in the Ereunpalay area and its surroundings. This study uses a quantitative method, starting with a broad perspective and then moving on to a more focused and targeted approach. This tectonic geomorphological analysis uses several morphometric parameters, such as: Drainage Density (Dd), Bifurcation Ratio (Rb), Valley Floor Width to Valley Height Ratio (Vf), Mountain Front Sinousity (Smf), Hypsometric Curve and Hypsometric Integral (HI), and the Tectonic Activity Index (IAT). From the results of IAT calculations, it is found that the Ereunpalay area and its surroundings are in class one to three tectonic activities or commonly called moderate to very high class. The flow pattern of the river that dominates the study area is a parallel flow pattern which is controlled by the geological structure. Based on the results of the morphotectonic analysis, it was found that the Ereunpalay area and its surroundings have a morphological shape that is influenced by tectonic activity in the form of faults and folds.
Perencanaan dan Perancangan Produk Wastafel dan Fitur Sabun Otomatis Dengan Metode Nigel Cross Muhammad Anton Alifandi; Ferida Yuamita
Jurnal Universal Technic Vol. 2 No. 2 (2023): Oktober : Jurnal Universal Technic
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/unitech.v2i2.1404

Abstract

We are encouraged to wash our hands for 20 seconds, if there is no soap and running water, we can replace it with a hand sanitizer with a minimum alcohol content of 60%. By washing our hands, we can prevent viral infections in ourselves, those around us and even communities such as families and workplaces. Manual hand washing facilities or equipment that are used together can be a medium for spreading viruses so they must be minimized, one of which is by using an Automatic Sink. Because of this, automatic sink products were built to make it easier for users to wash their hands while reducing contact with water taps and soap or bar soap containers. This automatic sink was designed using the Nigel Cross method so that it can realize an automatic handwashing device with the addition of an automatic soap feature that can help the hand washing process without touching the water faucet and soap. The advantage of this method is that it covers all aspects of the design process starting from clarifying the problem to the details of the design. The new product attributes that are arranged by designers are adjusted to the needs of the community, starting from materials to product functions. Based on testing several tasks and answers from the questionnaire answered by respondents, namely as many as 30 respondents to this sink product, it can be said that the attributes used are valid data. The results of the validity test were then carried out by a reliability test with the aim of testing the level of consistency of data measurement. The results of this reliability test produce a Crounchbach's Alpha value of 0.709, which means it is reliable because it is > 0.6.
Analisa Susut Teknis Pada Transformator Distribusi Di Wilayah Kerja PT. PLN (Persero) ULP Bawean Muhammad Azrul Gunawan; Hadi Tasmono
Jurnal Universal Technic Vol. 2 No. 2 (2023): Oktober : Jurnal Universal Technic
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/unitech.v2i2.1451

Abstract

Along with the development of the times, the need for electricity is very necessary. Electrical energy is one of the energy that is needed in using equipment that is related to electrical energy such as household, office and commercial industrial equipment that requires electrical energy. Bawean Island is one of the islands that requires a large amount of electricity due to the growing development of these sectors. With the rapid development of large-scale developments, the need for electricity needs to be increased in order to meet people's demands related to electricity needs. Technical losses are losses that occur for technical reasons where energy is reduced by turning into heat or heat energy. Basically technical losses occur based on energy losses in components caused by errors in the components themselves. Technical losses that occur in distribution transformers are common. In principle, losses always occur because efficiency cannot be 100%. Energy is lost along with distribution from upstream to downstream of distribution transformers. Based on the formulation of the problem taken, the researchers calculated losses at neutral currents, copper losses, total losses, output power and total losses in the form of prices. From the results of the conclusions above, it can be seen that the greater the current in the neutral of the transformer, the more losses that occur in the transformer.
Pengaruh Fasilitas Teknologi Mesin Self Check In Terhadap Efektivitas Pengguna Jasa Penerbangan Di Bandar Udara Sultan Aji Muhammad Sulaiman Sepinggan Balikpapan Wardani Winata Putra; Raden Fatchul Hilal
Jurnal Universal Technic Vol. 2 No. 2 (2023): Oktober : Jurnal Universal Technic
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/unitech.v2i2.1454

Abstract

The world of aviation in this modern era is increasingly developing. This is evidenced by the self-check-in facility provided by the company which greatly facilitates flight service users at Sultan Aji Muhammad Sulaiman Sepinggan Airport Balikpapan where this facility can not only reduce interaction between humans and reduce the intensity of the spread of the Covid 19 virus at that time, this facility can also maximize the effectiveness of passenger time, so that there are no long queues in the use of manual check in. This study aims to determine the Use of Self Check In Technology Affects the Effectiveness of Flight Service Users at Sultan Aji Muhammad Sulaiman Sepinggan Airport Balikpapan and How Much Influence the Use of Self Check In Technology Affects the Effectiveness of Flight Service Users at Sultan Aji Airport Muhammad Sulaiman Sepinggan Balikpapan. This research uses quantitative research methods with data sources in the form of primary data and secondary data. The population in this study is service users who have used the Self Check-In System and the sample in this study is 95 respondents from 2042 existing populations. Data analysis techniques consist of research instruments, namely validity tests and reliability tests and hypothesis tests consisting of simple linear analysis tests, t tests, and determination coefficients. The result of this study is that the use of Self Check In Technology affects the effectiveness of flight service users at Sultan Aji Muhammad Sulaiman Sepinggan Airport Balikpapan has a partial effect in a negative and significant direction. The magnitude of the correlation / relationship value (R) is 0.461. From this output, a coefficient of determination (R Square) of 0.212 was obtained which explained that the effect of the independent variable of self-check-in machine technology facilities on the effectiveness of aviation service users was 21.2.% The remaining 78.8% was influenced by other variables not explained in this study.
Pengaruh Program Airport Educational Tour “Discover YIA” Bandar Udara International Yogyakarta Terhadap Ketertarikan Masyarakat Tentang Kebandarudaraan Tri Febriantini; Nur Makkie Perdana Kusuma
Jurnal Universal Technic Vol. 2 No. 2 (2023): Oktober : Jurnal Universal Technic
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/unitech.v2i2.1455

Abstract

The Discover YIA program is a commitment of PT Angkasa Pura I (Persero) in providing services and comfort to airport service users, as well as an effort to support information disclosure and education processes regarding local cultural wisdom and Yogyakarta icons at Yogyakarta International Airport. This study aims to determine the influence of the "Discover YIA" Educational Tour Airport Tour Program to influence public interest in airports and to find out how much influence the "Discover YIA" Educational Tour Airport Tour Program has on public interest in airports. This study used quantitative research methods with data collection techniques using questionnaire distribution to 96 people who had participated in the YIA discover program. Data analysis techniques consist of research instruments, namely validity tests and reliability tests and hypothesis tests consisting of simple linear analysis tests, t tests, and determination coefficients. The result of this study is the Airport Tourism Program Educational Tour "Discover YIA" Yogyakarta International Airport has a positive and significant effect on public interest in airports with a significant number of 0.004 and the number of r count > r table or 2.961> 1.985. The influence of the Yogyakarta International Airport Educational Tour "Discover YIA" Airport Tourism Program on public interest about the airport is 50.9%.
Studi Provenance Batupasir Formasi Peneta Desa Slango, Kabupaten Sarolangun, Jambi Lokon, Beskian; Edy Sutriyono
Jurnal Universal Technic Vol. 3 No. 1 (2024): April : Jurnal Universal Technic
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/unitech.v3i1.1420

Abstract

This research was conducted in Slango village, Sarolangun Regency, Jambi. This research focuses on analyzing the source of rock origin, namely sandstone found in the Peneta Formation. Sandstone in the study area is quite widely distributed with varied characteristics, so determining the original rock is easy to do. This research was carried out to identify the origin of the rock through petrographic analysis of the sandstone so that the history of the formation of the Peneta Formation itself can be reconstructed. After provenance analysis, the Peneta Formation sandstone comes from the Recycle Orogen, precisely in the Subduction Complex Sources subzone. Apart from that, the Peneta sandstone also shows the origin of the Magmatic Arc. Thus, it is interpreted that the Peneta Formation sandstone has undergone several uplift processes due to tectonic activity and has experienced increased maturity or stability from the Continental Block Provenances. Apart from that, it is also influenced by the weathering process of granite heights or other volcanic materials, whether volcanic or plutonic. Key words: Sandstone, Slango Village, Peneta Formation, Petrography, Provenance
Monitoring Kualitas Air Laut Teluk Lamong Berdasar Bioindikator Plankton Dan Benthos Sophia Alvin Nurina Yulia Masladen; Praditya Sigit Ardisty Sitogasa
Jurnal Universal Technic Vol. 3 No. 1 (2024): April : Jurnal Universal Technic
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/unitech.v3i1.1855

Abstract

Lamong Bay is one of the important water areas in Indonesia, located around the coastal area of ​​Surabaya, East Java. This area has high ecological and economic value because it functions as a sea transportation route and supports marine biota. So this research is intended to monitor the quality of sea water in Lamong Bay based on benthos and plankton bioindicators. Plankton and benthos are small organisms that live in waters and are very sensitive to environmental changes. The plankton sampling method involves using a plankton net to collect plankton samples from the waters. The grab and net sampling method is a method used to collect benthos samples from the bottom of the waters. The results that can be concluded from the analysis carried out in the waters of Lamong Bay, for the type and abundance of plankton, phytoplankton are 3 classes, namely Bacillariophyta (16 species), Cyanobacteria (2 species), and Euglenozoa (1 species), and zooplankton found include Arthropods Monacilla sp. and Nauplius, Ciliophora individuals include Favella sp. , Tintinnopsis sp. , Tintinnopsis sp. 2, Tintinnopsis sp. 3 as well as individual Rotifera including Notholca sp. Meanwhile, for Benthos, only Thiaridae was found.
Analisa Risiko Keselamatan Dan Kesehatan Kerja (K3) Pada Kegiatan Docking Di PT. Pelindo Marine Service Muhammad Luqman Dzaky; Naniek Ratni JAR
Jurnal Universal Technic Vol. 3 No. 1 (2024): April : Jurnal Universal Technic
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/unitech.v3i1.1858

Abstract

The importance of K3 aspects in docking activities not only includes individual safety, but also has a direct impact on productivity and operational continuity. Accidents or incidents that occur during the docking process can not only threaten the lives and health of workers, but can also cause detrimental environmental impacts and hinder the smooth running of the supply chain. The HIRARC method allows identifying various potential hazards that may be associated with an activity or work environment. This approach involves data collection, situational analysis, and determining appropriate mitigation measures. From the results of the identification carried out during ship docking activities at PT. Pelindo Marine Service has 14 activities that have potential danger. With 4 activities that have very low risk, namely maintenance and repair activities in the engine room, ship maintenance in closed rooms, maintenance and repairs in the electrical room, and manual lifting of heavy materials. Then there are 5 activities with low risk, including welding process activities in open spaces, carrying out repair work at height, operating cranes, cleaning ship rooms, and plate cutting (LPG gas cutting) and material grinding processes. 3 activities with medium/medium risk, namely working around waters, working/standing around ships, and stuffing/stripping activities. And there is 1 activity with high risk, namely the ship maintenance process using the welding process in a closed space and 1 activity with very high risk, namely the activity of filling gas cylinders (for cutting and welding equipment). The risks faced include slipping, falling, scratches, shortness of breath, weakness, eye irritation, injuries, minor injuries, serious injuries, sprains, burns, fractures, electrocution and others. And the efforts made to control the risks above include using Personal Protective Equipment with discipline, working according to SOPs, installing K3 signs, providing fire extinguishers, regular inspections and implementing a good ventilation system. Based on the results of risk identification in ship docking activities at PT. Pelindo Marine Services. The importance of effective and continuous implementation of K3 in ship docking activities, in order to maintain the safety, health and welfare of workers and minimize negative impacts on company operations
Upaya Pengolahan Dan Pemanfaatan Air Limbah Domestik Pada Stasiun Pengisian Bulk Elpiji di PT X Muhammad Aditya Muzaky; Rizka Novembrianto
Jurnal Universal Technic Vol. 3 No. 1 (2024): April : Jurnal Universal Technic
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/unitech.v3i1.1871

Abstract

In the wastewater industry, it is divided into 2, specifically wastewater from home activities and production. Domestic activity wastewater comes from all worker sanitation activities and industrial supporting facilities such as prayer rooms, canteens and toilets. Waste water from these activities must be treated first so that it does not pollute the surrounding environment. PT X is an industry that operates in the field of bulk LPG filling stations which has made efforts to process and also utilize 100% of the waste water from its domestic activities. Sewage Treatment Plants handle the processing (STP) facilities with chemical and biological processes which are able to reduce pollutant parameters such as BOD, COD, TSS, Ammonia and Total Coliform by 90%, 85%, 95%, 90% and 99.9% and have been meet the specified quality standards. Meanwhile, oil & fat parameters are not too focused because they still meet existing quality standards, Therefore, processing aims to lower the relatively high organic characteristics. The results of this processing will be reused to reduce the use of clean water for irrigating green open spaces and roads.
Upaya Pengelolaan Dan Pemanfaatan Dalam Air Limbah Domestik Tekstil Pencetakan Kain di PT X Muhammad Alvando Rahmantio; Rizka Novembrianto
Jurnal Universal Technic Vol. 3 No. 1 (2024): April : Jurnal Universal Technic
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/unitech.v3i1.1874

Abstract

The fabric printing industry makes a major contribution to various kinds of textile products, its by-products, liquid waste, require special attention in environmental management. Most of the liquid waste originating from the fabric printing industry consists of dyes, solvents and other processing chemicals. To prevent negative effects on water quality and the surrounding environment, managing this waste is very important. To achieve sustainability, advances in liquid waste processing technology are very important. The solution to reduce the impact of liquid waste from the fabric printing industry is an advanced purification process. PT. X to reduce polutan parameter such BOD, COD , TSS, Ammonia and Total Colidform by. 90%, 95%, 95%, 85%, 20%, 90% And meets the specified quality standards. Because the pH parameters still meet existing quality standards, processing is focused on reducing the organic parameters which are quite high. The results of the process will be used again for flushing activities in green open spaces and for washing operational vehicles.

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