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Jurnal Teknologi dan Manajemen
Published by Institut Teknologi Adhi Tama Surabaya
ISSN : -     EISSN : 27211878     DOI : https://doi.org/10.31284/j.jtm.2024.v5i1.5411
Core Subject : Engineering,
Engineering
Jurnal Teknologi dan Manajemen (JTM), ISSN 2721-1878, is an open-access journal dedicated to provide a platform in management and technology aspects. This journal aims to publish renewable works in implementation of basic theories, experiments, simulations, and applications with systematic method; reviews of previous works; expansions of summary; or others. This journal is published twice a year, on January and July.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 133 Documents
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Develop IoT-Based Automatic Water Gate Control Prototype with Fuzzy Logic Approach Ismail, Jefri Abdurrozak; Aditya, Wigananda Firdaus Putra; Ekawati, Anies; Sari, Anggraini Puspita; Prasetya, Dwi Arman
Jurnal Teknologi dan Manajemen Vol 6, No 1 (2025): January
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jtm.2025.v6i1.6758

Abstract

This research developed a prototype for an automatic water gate control system that integrates Internet of Things (IoT) technology with a Fuzzy Logic approach. The prototype is designed to monitor and regulate water levels in real-time using ultrasonic sensors connected to an IoT network. The water level data is integrated into Amazon Web Services (AWS) for cloud management. Fuzzy Logic was chosen to enhance the system's accuracy and responsiveness to dynamic and unpredictable water levels. The primary goal of this system is to minimize flood risk and ensure adequate water distribution across various sectors by automatically opening the water gates. In initial testing, the prototype successfully transmitted water level data from the sensors to the AWS cloud server and performed fuzzy calculations according to Fuzzy Logic formulas. The prototype demonstrated good results in managing the opening of the water gates based on the water levels detected by the ultrasonic sensors, showing significant potential for water resource management in urban areas through this system.
Analysis of the Relationship Between Open Defecation Free Behavior and Water Quality in the Kalitebu River, Kali Kedinding Subdistrict, Surabaya Nampira, Anisa Apriliani; Afrianisa, Rodu Dhuha; Pramestyawati, Talent Nia
Jurnal Teknologi dan Manajemen Vol 6, No 1 (2025): January
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jtm.2025.v6i1.6101

Abstract

The Kali Tebu River in Tanah Kali Kedinding Village, Kenjeran District, Surabaya City, is often used by many people to defecate. Data collected by the Tanah Kali Kedinding Community Health Center in 2023 shows that 48 heads of families (KK), or 0.30% of the total population, are still involved in Open Defecation (Open Defecation) in waterways that flow directly into the river. into the Kali Tebu River, this can pollute river water, changing the quality of river water. The aim of the research is to analyze the results of river water quality tests, water quality status. In this research, a questionnaire was filled out to find out the community profile, then tested the parameters based on Minister of Environment and Forestry Regulation No. 68 of 2016 which consists of TSS, pH, BOD, COD, Fatty Oil, Ammonia, and Total Coliform. Then compare the quality status of the Storet method and the Pollution Index (IP) which is guided by Minister of Environment Decree No. 115 of 2003 with River Water Quality in accordance with PP RI No. 22 of 2021 . The test results for the TSS, BOD, COD, Ammonia, Fatty Oil and Total Coliform parameters of the Kali Tebu river do not meet the class quality standards in accordance with Government Regulation no. 22 of 2021, while the pH, COD and fatty oil parameters are compliant. Then the water quality status in the Kali Tebu River was determined using the storet method at points 1 – 3, all of which were included in the heavily polluted category with result values of -102, -100, -98. Meanwhile, to determine water quality status using the average Pollution Index at points 1 - 3, it is included in the heavily polluted category with PIj values 10, namely 20, 22, 23.
Morphometry and Water Quality Study of Pit Lakes in Coal Mines Widara, Maharani Rindu; Cahyadi, Teddy Agung
Jurnal Teknologi dan Manajemen Vol 6, No 1 (2025): January
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jtm.2025.v6i1.6104

Abstract

After mining is completed, the remaining pits that cannot be restored to their original condition become artificial pit lakes. Pit lakes are used in reclamation efforts after mining activities. An in-depth analysis of the pit lake generated in a previously mined area is required, specifically concentrating on evaluating the water volume, morphometry, and water quality of the pit lake. Management strategies required for achieving sustainable development. Paringin Lake was found to have a surface area of 19.5 hectares, a maximum depth of 33 metres, and an underwater retention duration of 303 days. A 1.25 volume shift in the Paringin pit lake indicates a shallow bottom state. The Paringin pit lake is relatively stable and not prone to wind-induced churning, as indicated by the relative depth calculation of 6.6%. According to calculations using the Storet method, Paringin Pit Lake has minor contamination. The distant location of the Paringin pit lake is the cause of this. The results suggested that Pit Lake Paringin has the potential for utilization in aquatic tourism and aquaculture.
Pushover Analysis of Harvard Dormitory Thursina International Islamic Boarding School Building with Inter Story Isolated System Modification Rahman, Aulia; Fajarwati, Anisah Nur; Sholeh, Moch; Sugiarto, Agus
Jurnal Teknologi dan Manajemen Vol 6, No 1 (2025): January
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jtm.2025.v6i1.6283

Abstract

Recently the demands of additional building functions have varied. These demands tend to affect structure stability because of the effects of additional mass. For example, Harvard Dormitory Thursina International Islamic Boarding School, located in Dau region, Malang city, East Java, Indonesia, a 11 x 8 m2 swimming pool is relocated on 4th floor. A big mass of pool certainly performs bigger lateral force due to seismic behaviour of structure itself. To reduce that, the IIS method is installed on the 3rd floor as it has damper effect along X and Y axis that is provided by LRB spring systems. IIS is widely used mainly in Japanese high-rise structures such as Shiodome Sumitomo building and Umeda Tower. To analyse the IIS modified structure, it is performed pushover analysis as controlled deformation is stated 18 in at rooftop. The results showed that 465 kN shear force and 160 mm story drift occurred on the 3rd floor which is the largest value compared to other stories. It is also obtained 230 mm lateral deflection of rooftop as the first plastic hinges are formed.
Optimisation of Compressive Strength of Fast Track Concrate Using Superplasticizer and Accelerator as Bridge Slab of Upper Structure Firdaus, Arga Agung; Rahman, Aulia; Qomariah, Qomariah
Jurnal Teknologi dan Manajemen Vol 6, No 1 (2025): January
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jtm.2025.v6i1.6348

Abstract

Fast track concrete is designed to accelerate the construction process, particularly in pouring operations. This study aims to determine the optimal early-age compressive strength of concrete applied to bridge decks, where flexural strength testing will be conducted. The admixtures used are superplasticizer (SP) and accelerator (AC). The dosages used are 0.8% and 1.2% of cement weight for superplasticizer, and 2.7% and 4.5% of cement weight for accelerator. Compressive strength testing is conducted at 6 hours, 1 day, 7 days, and 28 days after casting.The mix combination used includes SP 0.8% – AC 2.7%, SP 0.8% - AC 4.5%, SP 1.2% - AC 2.7%, and SP 1.2% - AC 4.5%. The concrete design uses a strength of fc’30 MPa with cylindrical test specimens. The results show that compressive strength increases with age. Flexural strength testing is applied to a bridge deck slab measuring 1 x 0.5 x 0.1 m, tested at 3 days of age. The concrete mix uses fc’30 with an SP dosage of 1.2% and AC dosage of 4.5% of cement weight. In the flexural test, the average load-bearing capacity is 40 kN.
Analysis of Potential Hazards in the Production Process of Railway Passenger Benches Using Hazard Identification, Risk Assessment and Risk Control (HIRARC) and Fault Tree Analysis (FTA) Methods Case Study: PT. Empat Putera Utama Bersama Pambudi, Danang Bagus; HM, Gatot Basuki
Jurnal Teknologi dan Manajemen Vol 6, No 1 (2025): January
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jtm.2025.v6i1.6642

Abstract

The increasing competition of companies requires a company to optimize all existing human resources (HR) to minimize risks that can hinder production process activities, PT. Four Putera Utama Bersama is a company engaged in the production of train passenger seats. There are several activities, namely preparation, production, assembly and finishing. The purpose of this study is to find out the type of hazard, and risk assessment with the HIRIARC method, while the FTA method is used to find the root cause of the problem. The results of the analysis will be used to mitigate any risk activities that occur in the production process of train passenger seats. The results of the study showed that there were 4 work activities and 11 work sub-activities that had potential dangers in activities. Risk assessment was obtained 3 activities with potential hazards in the extreme category, 2 activities with potential hazards in the high category, 2 activities with potential hazards in the moderate category  and 4 activities with potential hazards in the lowcategory, risk control was carried out on potential hazards that had extreme categoriesnamely pinched by the bench, hands hit by cutters and hands scratched by the bench frame that is still sharp.  
Analysis of Ambient Air Quality of Carbon Monoxide in Parking Areas (Case Study of Type B and Type C Hospitals in Surabaya City) Pratama Sandi Alala; Dandi Dwi Arifianto; Ayu Setyaning Sayekti Poesoko
Jurnal Teknologi dan Manajemen Vol 5, No 2 (2024): July
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jtm.2024.v5i2.6035

Abstract

The human respiratory system is vulnerable to the impacts of carbon monoxide (CO) emissions, a colorless and odorless gas. The aim of this research is to analyze the CO levels in the air and its relation to regulations governing air quality, specifically referring to Government Regulation Number 22 of 2021. This study also discusses the correlation between CO levels with air temperature and the number of motor vehicles. Measurements were conducted using a CO meter, and manual counting of motor vehicles was included as part of the purposive sampling procedure over a period of 3 days. On Saturdays, the average CO concentration was at its highest point, ranging from 64.131 μg/m3 in the morning to 52.106 μg/m3 in the afternoon and 37.791 μg/m3 in the evening. The average temperatures recorded were 31°C in the morning, 32°C in the afternoon, and 30°C in the evening. There was an increase in CO levels at Hospital X exceeding the permissible limit stated in Government Regulation Number 22 of 2021. Regarding air quality at Hospital Y, CO concentrations were 33.210 μg/m3 in the morning, 11.451 μg/m3 in the afternoon, and 29.775 μg/m3 on Monday afternoon, all of which were above normal levels. With a value of α of 0.000, which is less than 0.01 according to Pearson correlation test, a significant relationship between temperature and CO levels was revealed, with a Pearson correlation coefficient (r) of -0.917. There is a perfect negative correlation between these two variables. To determine the presence of a relationship between the number of motor vehicles and CO concentration, the Pearson correlation test yielded a significant result with a value of α of 0.048 and an r value of 0.670. The correlation between the two variables is evident. 
Seismic Behavior of Building Structures using Time History Analysis (Case Study: RSPAL Surabaya) Heri Istiono; Yanisfa Septiarsilia; Dita Kamarul Fitriyah; Indra Komara; Katon Putra Baskara
Jurnal Teknologi dan Manajemen Vol 5, No 2 (2024): July
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jtm.2024.v5i2.5944

Abstract

Penting untuk mempertimbangkan pembangunan bangunan yang tahan gempa di Indonesia karena negara ini rentan terhadap gempa. Percepatan gempa pada permukaan tanah merupakan faktor yang secara langsung mempengaruhi struktur. Gedung bertingkat tinggi yang terletak pada zona gempa tinggi diperlukan perencanaan dan peninjauan khusus agar tetap aman saat menahan gaya gempa. Analisis struktur terhadap gempa dapat dibagi menjadi dua metode, yakni analisis statik dan analisis dinamik. Dalam analisis dinamik, terdapat dua pendekatan utama, yaitu analisis spektrum respons dan analisis time history. Cara untuk mendapatkan perilaku terhadap struktur gedung adalah dengan menerapkan gaya pada struktur. Salah satu contoh gaya yang kompleks adalah gaya gempa yang memiliki karakteristik yang tidak teratur dan waktu yang acak. Untuk menyederhanakan pengaruh gaya gempa ini, dapat dilakukan melalui analisis respons spektrum dan time history. Dalam analisis time history, gaya gempa yang dimasukkan berasal dari gempa sebelumnya dan disesuaikan pada beban desain. Penelitian ini bertujuan untuk melakukan studi perilaku terhadap bangunan eksisting pada Gedung Rawat Inap RPAL Surabaya, dimana sistem strukturnya yaitu sistem rangkat pemikul momen khusus (SRPMK) dengan menggunakan metode Time History. Pada penelitian ini dilakukan pada daerah surabaya dan untuk Load Case yang terdapat pada masing-masing Time History juga dilakukan proses Scalling dimana hasil ini didapatkan dari perhitungan nilai perhitungan faktor skala. Untuk simpangan antar lantai paling kritis dari analisis time history adalah gempa Tabas yang dimana nilai displacement total ijin maka belum memenuhi persyaratan.
Decision Support to Improve Railway Track Maintenance in Indonesia: A life Cycle Cost Approach Rachmad Indrakusuma; Nafilah El Hafizah; Dicky Rahmadiar Aulial Ardi
Jurnal Teknologi dan Manajemen Vol 5, No 2 (2024): July
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jtm.2024.v5i2.5945

Abstract

Railway infrastructure is a complex asset and must have a long service life. Therefore, effective maintenance methods are required to achieve optimal results throughout the life cycle. Life Cycle Cost (LCC) is a method of evaluating the total cost associated with the service life of a system and can also be used to determine the most cost-effective method in the long term. This research begins by discussing the failure of major track components such as rails, sleepers and ballast. With the literature study, critical track component degradation models can be developed to identify the causes of failures. Material selection analyses is used to ensure optimal selection in terms of cost and performance. The appropriate type of maintenance is determined to ensure proper and safe operation of the railway track system. The main purpose of this paper is to determine the effective and efficient methods for maintaining railway tracks in Indonesia. In this study, the estimated degradation models of track components are used as the basis for determining component material selection. Existing types of railway maintenance are discussed and involve determining the type of maintenance based on LCC analysis to achieve the most cost-effective method.
Optimizing Railway Track Management through Life Cycle Cost Analysis: A Comprehensive Review Rachmad Indrakusuma; Bagus Budiwantoro; Satrio Wicaksono
Jurnal Teknologi dan Manajemen Vol 5, No 2 (2024): July
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jtm.2024.v5i2.5935

Abstract

This paper presents a comprehensive examination of Life Cycle Cost (LCC) analysis as applied to railway track systems, with a focus on optimizing the economic and operational performance of railway infrastructure over its entire lifespan. The study begins with an exploration of existing LCC models and their applications in railway track analysis, highlighting the importance of LCC as a decision-making tool for infrastructure management. It then delves into the integration of degradation models for key track components such as ballast, rails, and sleepers, and how these models contribute to a more accurate and effective LCC analysis.The paper further reviews several case studies to illustrate the practical application of LCC analysis in real-world scenarios. These include an analysis of alternative railway track support materials for the Sydney Harbour Bridge, an evaluation of the slab track monoblock sleeper system for the Indonesian Urban Metro Railway Project under uncertainty, and a life cycle cost, energy, and carbon assessment of the Beijing-Shanghai High-Speed Railway. Each case study provides insights into the methodologies used for LCC analysis and the resulting implications for railway infrastructure management.The findings of this paper underscore the significance of LCC analysis in guiding the maintenance and renewal policies of railway tracks, ensuring cost-effectiveness while maintaining safety and reliability. The paper concludes with recommendations for the adoption of advanced LCC models and maintenance strategies, emphasizing the need for future research to address uncertainties in system performance and to further refine these models for enhanced decision-making in railway track management.

Page 10 of 14 | Total Record : 133

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