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No full textAnalysis of the impact of soil excavation stages on slope stability case study of road and bridge construction projects in bts. Singaraja-Mengwitani at point 7E, Bali Guilden Laelatu Yudha, Ria Asih Aryani Soemitro, Trihanyndio Rendy Satrya &Noor FachriePlanning of Alternative Embankment Reinforcement on the Roadway. Case Study: Landslide on the Bypass Road of Lombok International Airport - Mandalika Section Km 10+415 to 10+519Panji Ageng Ichtiar, Mohamad Khoiri, Dwa Desa Warnana & Herlambang ZulfikarAnalysis of the Use of a Combination of Soil Embankment and Lightweight Material (Foam Mortar) as an Alternative to Slab on Pile Construction Case Study: Rengat-Pekanbaru Toll Road Construction Project Section Lingkar Pekanbaru-Junction Pekanbaru Sta 193+ 025 - 193+400 I Wahyu Maya Dewatama, Noor Endah Mochtar, Indrasurya B. Mochtar & Mahar MuliawanComparison Between Soil Improvement Design Method Of Replacement And PVD Installation For Soft Soil Embankment, Case Study: Probolinggo – Banyuwangi Toll Road Project Section 3 Sta 23+075 – 23+670 Esti Kusuma Wardani & Reza KazhimiSlope Design for Cost Optimization of Slope Cutting and Reinforcement (Case Study: Trans-Sumatra Toll Road Rengat Pekanbaru Section Lingkar Pekanbaru Junction Pekanbaru Sta. 205+150 - 205+725)R Fiansyah Dwi Prasetiyo, Noor Endah Mochtar, Indra Surya B Mochtar & Mahar Muliawan
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No full textParametric Study of Embankment Stability And Geotextile Reinforcement On Soft Soil Mirza Syah Alam, Herman Wahyudi, Yudhi Lastiasih, Yusrizal KurniawanAnalysis Of Slope Stability Based On The Effect Of RainFall On The Lombok International Airport (Bil) – Mandalika Road STA 10+375 to STA 10+550 Made Sudiadnya, Mohamad Khoiri, Dwa Desa Warnana, Herlambang ZulfikarAnalysis of The Effect of Seismic Load on The Design Safety Factor of Foam Mortar with Bored Pile Landslide Location of Batas Pidie/Aceh Besar – Bts. Kota Sigli STA 0+560 Ichvan Danny Kurniawan, Trihanyndio Rendy Satrya, Ria Asih Aryani Soemitro, Fikri AfzalA Study of Pile Displacement in Soft Soil: The Case of Semarang - Demak Toll Road Construction Package 1B Novera Sagita, Herman Wahyudi, Yudhi Lastiasih &Yusrizal KurniawanDesign Of Toll Road Embankment With Secondary Compression Mitigation After PVD Installation And Solutions For The Probolinggo – Banyuwangi Toll Road Construction Project PackKAGE 2 STA 16+300 – STA 16+700 Septya Kukuh Aryandi, Indrasurya B. Mochtar, Noor Endah, Abdjad Agung Artant
Analysis of Excavated Soil Utilization as Embankment Material and Foundation Layer on Singaraja – Mengwitani Road Section (BALI)
Full text linkRoad and bridge construction of the Bts. Singaraja City - Mengwitani is located in a tightly contoured hilly area, resulting in a very large volume of excavation and embankment work. Referring to the data from the field inspection of the construction work package, the soil layer in the excavation work has the potential to be used as fill material and foundation layer. This can be a solution to reduce the use of natural materials by utilizing waste materials.This research aims to analyze the utilization of excavated soil on the National Road Bts. Singaraja City - Mengwitani. The research was conducted by identifying the physical and mechanical parameters of the excavated soil at the location of the disposal area, then examining the requirements of the general specifications of bina marga for road and bridge construction in 2018 revision 2, if it does not meet the stabilization using lime to improve the soil parameters to achieve optimal conditions. If the test specimen meets the requirements as backfill soil, then modeling will continue using the Plaxis 2D auxiliary program to calculate the maximum height of safe backfill soil.Based on the results, the excavated soil was classified as silty sand (SM) with plasticity index varying from 5.84% to 12.63%, and CBR values varying from 6.60% to 10.12%. For the material requirements check, all excavated soils meet the requirements as ordinary backfill material, some rest area disposal sites meet the requirements as preferred backfill material, swamp backfill, and graded material backfill, and all excavated soils do not meet the requirements of foundation layer. From the modeling results of the excavated soil parameters obtained, the safe embankment height can reach 3-5 meters
Efektivitas Program Akademi Berdaya dan Keberdayaan Penjahit Perempuan di Kecamatan Cikampek, Kabupaten Karawang
No full textAn empowerment program can be said to be effective and successful if the beneficiary community is empowered. The women's empowerment approach focuses on women's capacity framework in increasing independence and internal strength. However, empowerment programs are still found that do not target communities with the right needs. BaitulMaalKu as an Amil Zakat institution contributes to empowering women in the fields of sewing and fashion design to increase independence. The aim of this research is to analyze the relationship between the level of program effectiveness and the empowerment of women who are beneficiaries of the Empowered Academy program. The number of research respondents was 43 women recipients of the Empowered Academy program who were selected using census techniques. The results of the research show that there is no significant relationship between the level of effectiveness of the empowerment program and the level of empowerment of women who receive the benefits of the Empowered Academy. In general, the level of women's empowerment is not only determined by the level of program effectiveness. Women's empowerment is determined by opportunities for access to credit, doing productive work, and the ability to start a busines
Turbine Slope Testing in Microhydro Plants as a Regional Electricity Source near River Flows that are not Reachable by PLN
Full text linkElectrical energy has become the main need of society. PLN manages the supply of electrical energy in Indonesia as the State Electricity Company. The problem is that not all areas of Indonesia are covered by the PLN electricity network. Various energy sources can be converted into electrical energy in remote areas not yet reached by the PLN network. One example of this energy source is micro hydro energy, energy from river flows that are not too strong. The equipment for converting micro hydro energy into electrical energy is called MHPP. This research is part of the application of MHPP based on Archimedes screw turbines as a source of electricity for areas near river flows that are not yet accessible to river flows. The focus of the research is to study the effect of the turbine elevation angle on the output electrical power of the MHPP. This research aims to determine the optimum values of rotation, torque, voltage, current and electrical power produced by an Archimedes screw turbine MHPP design with variations in turbine elevation angles of 20°, 25°, 30°, 35° and 40°. The MHPP design studied consists of 3 blades, a gearbox ratio of 2.8:1, a water flow rate of 6.34 liters/second, and a low rpm BLDC generator type. The optimum rotation is 1001.38 rpm at an elevation angle of 35° and the optimum torque is 1,738 Nm at an elevation angle of 40°. The optimum voltage is 14.84 V, the optimum current is 0.670 A, and the optimum electrical power is 7.861 W at an inclination angle of 40°
Development of a Control and Monitoring System for Ballast Systems Based on Programmable Logic Controllers (PLC) and Human-Machine Interface (HMI)
Full text linkThe ballast control management system plays a vital role in maritime operations by ensuring vessel stability and safety while minimizing environmental risks associated with ballast water transfer. Effective ballast management regulates the filling and emptying of ballast tanks to maintain proper trim, draft, and balance during navigation and docking. With the enforcement of the Ballast Water Management (BWM) Convention by the International Maritime Organization (IMO), vessels must implement a Ballast Water Management Plan (BWMP) and maintain a Ballast Water Record Book to comply with international regulations. This study aims to develop a PLC- and HMI-based ballast control system that enhances monitoring and automation of ballast operations. The system is designed to improve control accuracy, diagnostic capabilities, and operational flexibility while ensuring compliance with IMO regulations. The research methodology involves system design, hardware integration, and software programming to create an automated control and monitoring solution. The PLC system utilizes digital inputs to operate pumps and valves, while analog sensors measure tank levels and pressure. The HMI interface displays real-time data, enabling seamless user interaction. The results demonstrate that the proposed system significantly enhances ballast operations by improving automation, control accuracy, and monitoring capabilities. The system ensures safe and efficient ballast management while facilitating regulatory compliance. These findings highlight the potential of PLC and HMI technologies in advancing maritime automation and control systems
Advancing Fucoxanthin Production from Microalgae: A Bibliometric Analysis of Research Trends and Innovations
Full text linkFucoxanthin has attracted significant public attention due to its extensive bioactive properties, including antioxidant, anti-inflammatory, and anti-obesity effects. This study conducts a bibliometric analysis to assess research trends, key contributors, and scientific progress in fucoxanthin studies. By utilizing data from prominent scientific databases, various bibliometric indicators, such as publication output, citation patterns, and collaborative networks, were analyzed. The analysis reveals a consistent rise in research publications over the past two decades, with significant contributions from countries like Germany, Japan, and China. Additionally, the study identifies leading institutions and influential authors who have significantly impacted the field. The results highlight the expanding interest in fucoxanthin's potential applications in pharmaceuticals, functional foods, and nutraceuticals. Furthermore, the study sheds light on collaborative efforts between academic institutions and industries that drive innovation and commercialization. This comprehensive evaluation not only provides an understanding of the current research landscape but also identifies future directions for scientific exploration and technological advancements. The findings serve as a valuable resource for researchers, policymakers, and industry stakeholders to make informed decisions and foster innovation in the utilization of fucoxanthin for human health and sustainability
Estimating Confidence Intervals for Hazard Ratio with Composite Covariates in the Cox Models
Full text linkHazard ratio (HR) estimation is fundamental in survival analysis, particularly in Cox proportional hazards models, where covariates influence time-to-event outcomes. When covariates are combined into composite variables, constructing confidence intervals (CIs) for the resulting HRs becomes challenging due to potential multicollinearity, interaction effects, and violations of the proportional hazards assumption. This paper presents a systematic approach for constructing confidence intervals for HRs associated with composite covariates, comparing standard methods such as the Wald, likelihood ratio, and bootstrap-based intervals. Through simulation studies for different scenarios of Cox regression models, we evaluate the performance of these methods in terms of bias, coverage probability, and robustness under various data conditions. The findings of this study provide practical recommendations for researchers dealing with composite covariates in survival analysis, ensuring reliable inference in epidemiological and clinical studies
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No full textJournal of Infrastructure & Facility Asset ManagementVolume 7, Special Issue 3, January 2025 (e) ISSN 2656-8896 (P) ISSN 2656-890X Volume 7, Special Issue 2, January 2025Handling Selection of Compression And Stability Problems of Embankment Based on The Thickness of Soft Soil Layer Below (Case Study: Rengat – Pekanbaru Toll Road Project Sta. 176+775 – Sta. 176+975) Pandu Hermawan, Noor Endah Mochtar, Indrasurya B. Mochtar, & Mahar Muliawan Slope Stability Analysis Under Dry-Wetting Cycle Conditions (Case Study: Landslide Countermeasure of Batas Pidie/Aceh Besar - Batas Kota Sigli) Zulfadhli, Trihanyndio Rendy Satrya, Ria Asih Aryani Soemitro & Fikri Afzal Alternative Planning Slope Stabilization On Roadway Case Study : Landslide On Tabone-Polewali Road Section KM 168+790 to 168+820 Ismi Istiqamah, Mohamad Khoiri, Mahendra Andiek Maulana & Bambang S. RazakStudy of The Behavior of Abutment Piled Foundation due to Nearby Staged-Embankment (Case Study: Kali Kandang Bridge on The North Ring Road of Lamongan) Azkiya Nabila, Trihanyndyo Rendy Satrya, Ria Asih Aryani Soemitro, Sifa Udukha Behaviour Study of Abutment Pile Foundation on Lightweight Embankment Oprit Nila Wahyu Pertiwi, Ria Asih Aryani Soemitro, Trihanyndio Rendy Satrya, Sifa' UdukhaVolume 7, Special Issue 1, January 2025Parametric Study of Embankment Stability And Geotextile Reinforcement On Soft Soil Mirza Syah Alam, Herman Wahyudi, Yudhi Lastiasih, Yusrizal Kurniawan Analysis Of Slope Stability Based On The Effect Of RainFall On The Lombok International Airport (Bil) – Mandalika Road STA 10+375 to STA 10+550 Made Sudiadnya, Mohamad Khoiri, Dwa Desa Warnana, Herlambang Zulfikar Analysis of The Effect of Seismic Load on The Design Safety Factor of Foam Mortar with Bored Pile Landslide Location of Batas Pidie/Aceh Besar – Bts. Kota Sigli STA 0+560 Ichvan Danny Kurniawan, Trihanyndio Rendy Satrya, Ria Asih Aryani Soemitro, Fikri Afzal A Study of Pile Displacement in Soft Soil: The Case of Semarang - Demak Toll Road Construction Package 1B Novera Sagita, Herman Wahyudi, Yudhi Lastiasih &Yusrizal Kurniawan Design Of Toll Road Embankment With Secondary Compression Mitigation After PVD Installation And Solutions For The Probolinggo – Banyuwangi Toll Road Construction Project PackKAGE 2 STA 16+300 – STA 16+700 Septya Kukuh Aryandi, Indrasurya B. Mochtar, Noor Endah, Abdjad Agung Artanto
Reviewer
Full text linkPaper Writting StipulationPapers on JIFAM - The Journal of Infrastructure & Facility Asset Management Journal is regulated by general stipulation as follows.- Papers must be a real work of the author.- Papers has never been published in other media.- Papers must contain discussion about Infrastructure & Facility Asset Management.- Papers must contains a new discussion, judging based on the discussion that has been published in previous JIFAM.- The paper has to take references from Scientific Journal with minimum of 5 papers.- Paper lengths are limited in 8-16 pages.- Paper Template can be downloaded on the website http://https://iptek.its.ac.id/index.php/jifamScope of TopicJIFAM accepts papers on Infrastructure & Facility Asset Management. The scope of the topic includes, but not limited to,- I & F Function- I & F Demand - Supply- I & F User Behavior- I & F Policy- I & F Planning- I & F Administration Aspects- I & F Operation System- I & F Maintenance System- I & F Evaluation Technique- I & F Disposal- I & F Economical Aspect- I & F Financial Aspect- I & F Management Organization- I & F Spatial Aspects and Environmental AspectsReviewerProf. Dr. Ir. Ria Asih A. S. M.Eng, Institut Teknologi Sepuluh Nopember (ITS), SurabayaDr. Trihanyndio R. S. ST., MT., Institut Teknologi Sepuluh Nopember (ITS), Surabaya, IndonesiaDr. Mahendra A. M. ST., MT., Institut Teknologi Sepuluh Nopember (ITS), Surabaya, IndonesiaDr. Ir. Hitapriya Suprayitno MEng., Departemen Teknik Sipil, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia.Dr. Ir. Alex Abdi Chalix MM., MT., Kementerian Pekerjaan Umum dan Perumahan Rakyat (PUPR), Jakarta.Prof. Dr.Tech.Ir. Danang Parikesit MSc., University Network For Indonesia Infrastructure Development, Indonesia.Prof.madya Dr. Maimunah Bt Sapri., Real Estate Department, Universiti Teknologi Malaysia, Johor Bahru, Malaysia.Wahyu Caesarendra, ST., M. Eng., Ph.D., Departement Integrated Technology, University Brunei Darussalam, Brunei Darussalam.Dr. Ir. Achmad Wicaksono MEng., Teknik Sipil, Universitas Brawijaya, Malang, Indonesia