cover
Contact Name
Syaiful Hendra
Contact Email
syaiful@untad.ac.id
Phone
+6285215151700
Journal Mail Official
sciencetech.untad@gmail.com
Editorial Address
Jl. Soekarno Hatta No.KM. 9, Tondo, Kec. Mantikulore, Kota Palu, Sulawesi Tengah 94148, Indonesia
Location
Kota palu,
Sulawesi tengah
INDONESIA
Tadulako Science and Technology Journal
Published by Universitas Tadulako
ISSN : 27764097     EISSN : 27764893     DOI : https://doi.org/10.22487/sciencetech
Tadulako Sciencetech Journal is an open-access global publication for scientific articles which is intended as a vehicle for the dissemination of new finding research results on science and technology. Manuscripts that are published in Tadulako Sciencetech Journal develop underlying science principles for innovative technologies and presents scientific advances for enabling real-world application across multiple disciplines. Papers published in Tadulako Sciencetech Journal are therefore available to a much wider readership that not only to the traditional academic sector but also to policy institutions, industry, the general public and the media. It is published two times a year, published in July, and December in electronic format with free online access. Submitted papers must be written in English for an initial review stage by editors and further review process by a minimum of two international reviewers. These topics are addressed in full-length academic articles, critical statements on current issues, developmental practice, and reviews of books based Science and Technology. The purpose of the journal is to publish original and high-quality research papers in the field of Science and Technology. The journal presents an innovative platform for researchers, students, practitioners and educators to both learn from and contribute to the field. Finally, accepted and published papers will be freely accessed in this website and the abstracting & indexing databases, such as Google Scholar, PKP Index, Dimensions, etc. The journal invites original, significant, and rigorous inquiry into all subjects within or across disciplines related to Science and Technology. It encourages debate and cross-disciplinary exchange across a broad range of approaches.
Arjuna Subject : Umum - Umum
Articles 54 Documents
Erosion Hazard Class Mapping in Dolago Das, South Parigi Sub-district Rifki Lumalan Manguma; Ida Arianingsih; Misrah; Hasriani; Akhbar
Tadulako Science and Technology Journal Vol. 4 No. 2 (2024): Tadulako Science and Technology Journal
Publisher : LPPM Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/sciencetech.v4i2.17318

Abstract

Introduction: Erosion can be caused by natural activities or human activities. Erosion events that occur naturally do not cause too many problems, but erosion events caused by humans can cause various problems of land damage or degradation and experience an accelerated rate of erosion. The Dolago watershed has an area of ±17,283.09 ha and is a priority watershed that needs attention because several natural disasters such as erosion, landslides, and floods have harmed the community when rainfall increases. Method: Based on the case above, researchers studied the erosion risk class of the Dolago watershed by combining erosion prediction methods, namely USLE and Geographic Information Systems. Erosion hazard class research was carried out in the Dolago watershed for 3 months, from September to November 2022 using the Universal Soil Loss Equation method and Geographic Information System, namely Overlay of several data (erosion determining parameters) to determine the erosion hazard class in the Dolago watershed. Results and Discussion: The results of research using the Geographic Information System and the Universal Soil Loss Equation method show that the amount of eroded soil in the Dolago watershed is 23,888.80 tons/ha/year and the erosion hazard class is divided into 5 classes, namely Class I (very light) erosion rate <15 tons/ha/year with an area of 15,111.55 ha, class II (light) erosion rate 15 - 60 tons/ha/year with an area of 175.52 ha, class III (medium) erosion rate 61 - 180 tons/ha/year with an area of 1,244.87 ha, class IV (heavy) erosion rate 180 - 480 tonnes/ha/year with an area of 491.66 ha and class V (very heavy) erosion rate >480 tonnes/ha/year with an area of 259.49 ha. Conclusion: Combining the geographic information system and the USLE method, five types of erosion hazard classes can be produced, namely class I classified as very light with an area of 15,111.55 ha percentage of 82.81%, class II classified as light with an area of 193.52 ha percentage of 1.12%, class III classified as moderate with an area of 1,815.52 ha percentage of 10.50%, class IV classified as heavy with an area of 682.32 ha percentage of 3.95% and class V classified as very heavy with an area of 279.56 ha percentage of 1.62%.
Masculinization of Tilapia (Oreochromis Niloticus) by Oral Method Using Senggani Fruit Extract (Melastoma Malabathricum L.) Nopita; Akbar Marzuki Tahya; Muhammad Safir
Tadulako Science and Technology Journal Vol. 4 No. 2 (2024): Tadulako Science and Technology Journal
Publisher : LPPM Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/sciencetech.v4i2.17319

Abstract

Introduction: Tilapia have different growth rates in male and female fish where the growth of male fish is faster than female. Therefore, in tilapia farming activities, the production of tilapia weighing >100g/head is difficult to achieve due to uncontrolled spawning. Method: This study was designed using a completely randomized design (CRD) with 5 treatments and 4 replicates, namely treatment A (control), B (Senggani fruit extract 0.75 g/kg feed), C (extract 1.5 g/kg feed), D (extract 2.25 g/kg feed), E (extract 3 g/kg feed). The organisms used in the study were 7-day-old tilapia larvae. Tilapia larvae were given feed that had been added with Senggani fruit extract according to the treatment dose. Tilapia were reared for 62 days, and given artificial feed containing 41% protein, each feeding was given with a frequency of 3 times a day (morning, afternoon, evening). Results and Discussion: The results showed that the highest percentage of male sex was found in treatments A, B, C, D and E, which amounted to 50; 56.25; 57.5; 58.75; and 60%, respectively. Daily growth rate, survival and feed conversion ratio obtained during the study in each treatment amounted to 7.49, 7.45; 7.44; 7.46; and 7.40. for survival 73.75; 72.5; 72.5; 70; and 68.75 then the results of feed conversion ratio respectively 1.86; 1.88; 1.89; 1.86; and 1.91. The analysis showed that the highest percentage of male sex was found in the treatment of 3 g/kg feed which amounted to 60% (P>0.05). Daily growth rate, survival rate and feed conversion ratio did not significantly affect the treatment given (p>0.05). Conclusion: The results of water quality measurements obtained are still within the optimum limits for tilapia rearing. Conclusion: Feeding using Senggani fruit extract to masculinize tilapia did not have a significant effect (p>0.05) on the percentage of male tilapia, daily growth rate and feed conversion ratio.
Remote Water Quality Monitoring System In Shrimp Ponds With Photovoltaic (PV)-Based Energy Source Sherly Dwi Novianti M; Rizana Fauzi; Nurhani Amin
Tadulako Science and Technology Journal Vol. 4 No. 2 (2024): Tadulako Science and Technology Journal
Publisher : LPPM Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/sciencetech.v4i2.17320

Abstract

Introduction: Shrimp has great potential to be used as a business field in Indonesia. Especially in Parigi Regency itself, there are now many shrimp ponds that can be found because of the benefits obtained, so people are interested in making shrimp farming a livelihood. One of the main problems of shrimp ponds is pond water quality. There are several factors that affect pond water quality, namely water temperature, water pH, and water salinity, good pond water quality management can maintain quality standards and can increase shrimp yield and productivity Method: To facilitate the shrimp farmers, innovations need to be made in order to help the shrimp farmers manage their shrimp ponds, therefore using a remote water quality monitoring was system in shrimp ponds with photovoltaic (PV) based energy sources is expected to be an innovation in managing shrimp ponds, especially in monitoring water quality in shrimp ponds. The monitoring system designed using the NRF24L01 module as a remote communication module, at the research location the distance from the shrimp pond to the house is approximately 100 meters, so the tools that have been designed can facilitate shrimp farmers to monitor the shrimp pond Results and Disscussion: The results of testing the DS18B20 temperature sensor compared with a digital thermometer measuring instrument get an average error of 0.014%. The test results of the pH sensor compared to the pH meter get an average error of 0.026%. TDS sensor test results compared with the TDS meter get an average error of 0.04%. Conclusion: The temperature, pH, and salinity monitoring system uses transmitter and receiver modules, where the transmitter module reads and sends data to the receiver module wirelessly with NRF24L01. Using DS18B20 temperature, pH, and TDS sensors, as well as energy from photovoltaics, this system helps shrimp farmers monitor pond water quality remotely.
Analysis Of Calculation Of Illumination Needs At Tadulako University Hospital Yudizthiranda; Agustinus Kali; Yusnaini Arifin
Tadulako Science and Technology Journal Vol. 4 No. 2 (2024): Tadulako Science and Technology Journal
Publisher : LPPM Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/sciencetech.v4i2.17321

Abstract

Introduction: Lighting in the room varies, this is adjusted to the activities carried out in the room. Each room has its own lighting standards. The provision of electric power must meet sufficient capacity to serve the load. The construction of the Tadulako University College Hospital project cannot be separated from the need for electricity. In this building, electric power is used to meet lighting, air conditioning and medical needs. Method: This study uses a comparative analysis method to determine the suitability between the lighting calculation results and established standards, as well as a quantitative method in calculating lighting factors. Results and Disscussion: This study shows that the use of Downlight and LED Panel lamps at Tadulako University Hospital has met the standards of PERMENKES NO. 24 of 2016. Downlights are used in public spaces and corridors because they provide more focused and bright lighting, while LED Panels are used in special rooms for the comfort of patients and medical personnel. The trial showed that all rooms comply with the established lighting standards. Conclusion: This study concluded that the lighting system in Tadulako University Hospital using Downlight and LED Panel lamps has met the standards set by PERMENKES NO. 24 of 2016. LED Panel lamps are used in certain rooms to provide comfort for patients and medical personnel, while Downlight lamps are used in public rooms and corridors because the lighting is more focused and bright.