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All Journal ASEAN Journal on Hospitality and Tourism Jurnal Ekonomi Pembangunan: Kajian Masalah Ekonomi dan Pembangunan Journal of Materials Exploration and Findings International Journal of Applied Research and Sustainable Sciences (IJARSS)
Ridzuan, Abdul Rahim
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Religion Humanities Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Social Sciences

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Pipeline Risk Analysis Optimization with Monte Carlo Method Using Gamma Distribution Digita, Farhan Rama; Fatriansyah, Jaka Fajar; Ridzuan, Abdul Rahim; Ovelia, Hanna; Mas'ud, Imam Abdillah; Tihara, Irma Hartia; Linuwih, Baiq Diffa Pakarti
Journal of Materials Exploration and Findings Vol. 2, No. 3
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The inspection process of piping components in the oil and gas industry is one of the most crucial things, given the high risk posed by pipeline system failures, which have a huge impact on losses, both from environmental and financial aspects. Risk-based inspection with the Monte Carlo method is one of the efforts that can be made to minimize failures in piping systems, by involving data distribution to calculate the probability of component failure. Although the normal distribution is commonly used for generating random variables, its use in corrosion rate calculation can lead to overestimation due to negative corrosion rate values. Overestimation can result in inaccurate data and higher risk values, which can cause increased inspection costs. Therefore, the use of gamma distribution as a random variable generator can be a solution to reduce the bias level and increase the accuracy of the normal distribution analysis results. The gamma distribution is proven to prevent overestimation, so it can avoid inspection cost losses because the resulting risk value is lower than the normal distribution.
Optimizing the Role of Community-Based Enterprises to Improve Performance and Competitiveness in Indonesia Nihayah, Dyah Maya; Pujiati, Amin; Rahman, Yosi Aulia; Nihayah, Annis Nurfitriana; Nursaidah, Nursaidah; Damayanti, Anggita; Ridzuan, Abdul Rahim
Jurnal Ekonomi Pembangunan: Kajian Masalah Ekonomi dan Pembangunan Vol 25, No 1 (2024): JEP 2024
Publisher : Muhammadiyah University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jep.v25i1.23597

Abstract

This study aims to identify the characteristics and roles of the village-owned enterprises (BUMDES) model and determine the appropriate development strategy to improve performance and competitiveness. This research is a qualitative study with a case study approach. Data were taken from key persons the director of BUMDES, village officials, and the community as BUMDES partners in Semarang Regency. Data were analyzed using Atlas.ti and Analytical Networking Process (ANP) methods. The results show that BUMDES in Semarang Regency leads to the community-based enterprises (CBE) model than social enterprises because some of the characteristics they have to include the purpose of establishing BUMDES is to contribute to the village economy through the village income (PADes), improving the welfare of rural communities; BUMDES strategy to gain profits, and have strong social capital. Strategies to improve attractive marketing techniques and increase competence through joint training and mentoring are top priorities to improve performance and competitiveness. The limitation of the study is the sample should include the differentiated BUMDES based on village typology so that models and behavior can be identified according to their respective roots.
Optimizing the Role of Community-Based Enterprises to Improve Performance and Competitiveness in Indonesia Nihayah, Dyah Maya; Pujiati, Amin; Rahman, Yosi Aulia; Nihayah, Annis Nurfitriana; Nursaidah, Nursaidah; Damayanti, Anggita; Ridzuan, Abdul Rahim
Jurnal Ekonomi Pembangunan: Kajian Masalah Ekonomi dan Pembangunan Vol 25, No 1 (2024): JEP 2024
Publisher : Muhammadiyah University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jep.v25i1.23597

Abstract

This study aims to identify the characteristics and roles of the village-owned enterprises (BUMDES) model and determine the appropriate development strategy to improve performance and competitiveness. This research is a qualitative study with a case study approach. Data were taken from key persons the director of BUMDES, village officials, and the community as BUMDES partners in Semarang Regency. Data were analyzed using Atlas.ti and Analytical Networking Process (ANP) methods. The results show that BUMDES in Semarang Regency leads to the community-based enterprises (CBE) model than social enterprises because some of the characteristics they have to include the purpose of establishing BUMDES is to contribute to the village economy through the village income (PADes), improving the welfare of rural communities; BUMDES strategy to gain profits, and have strong social capital. Strategies to improve attractive marketing techniques and increase competence through joint training and mentoring are top priorities to improve performance and competitiveness. The limitation of the study is the sample should include the differentiated BUMDES based on village typology so that models and behavior can be identified according to their respective roots.
Langkawi's Ecological and Economic Renaissance: A Study of Blue and Green Opportunities Ridzuan, Abdul Rahim; Chee Ann, Lim; Md Razak, Mohamad Idham; Akhwan, Muhamad Hafizuddin; Ridzuan, Mardhiyah; Zarin, Nur Izzati
ASEAN Journal on Hospitality and Tourism Vol. 22 No. 1 (2024):
Publisher : Centre For Tourism Planning and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/ajht.2024.22.1.05

Abstract

This article delves into the potential of the blue and green sectors situated in Langkawi Island, Malaysia. With its abundant marine and terrestrial resources, the island needs to strike a balance between its economic growth and environmental preservation imperatives. By leveraging the potential of green and blue sectors such as tourism, fisheries, renewable energy, agriculture, and forestry, Langkawi Island can serve as a model for responsible development, all while preserving its innate natural beauty and biodiversity. A survey was conducted involving 104 local respondents at various attraction points across Langkawi Island to assess the progress of these sectors. Overall, the respondents were predominantly in agreement regarding the impacts of development stemming from both the blue and green economies, coupled with the positive spill-over effects witnessed on the island. The descriptive findings indicate that the potential for growth within these blue and green economies is promising, buoyed by anticipation from both governmental and private sectors. As such, it becomes imperative for policymakers to formulate a comprehensive development plan that can adequately bolster the expansion of these sectors. This preparation will be crucial in ensuring the sustainable growth of Langkawi Island's blue and green economies, ultimately fostering a harmonious coexistence between economic progress and environmental conservation.
The Utilization of a Combination of Heatsink Material And A Water Cooler Block As An Effort To Reduce Heat From Solar Panels Abdullah; Putri, Maharani; Syahruddin, M.; Silitonga, Arridina Susan; Dharma, Surya; Jumaat, Abdul Kadir; Ridzuan, Abdul Rahim; Aritonang, Gideon
International Journal of Applied Research and Sustainable Sciences Vol. 2 No. 5 (2024): May 2024
Publisher : MultiTech Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59890/ijarss.v2i5.1806

Abstract

Solar panels are an important utilization in generating renewable energy, but high temperatures can reduce energy conversion efficiency and shorten the lifetime of solar panels. This research aims to explore and evaluate the utilization of a combination of heatsink material and cooling water block as a solution to reduce the heat generated by solar panels. The research method includes the design and manufacture of a prototype consisting of solar panels mounted on a combination of heatsink material and water block. Experiments were conducted by varying the use of passive cooling and the absence of cooling on solar panels according to environmental conditions to evaluate the effectiveness of the system in reducing the temperature of solar panels. A power increase of 43.3% was achieved by comparing the system without cooling design with the passive cooling design system. The results showed that the use of a combination of heatsink material and cooling water block significantly reduced the solar panel temperature under various operational conditions. In addition, data analysis showed an increase in the energy conversion efficiency of the solar panel after the implementation of the cooling system. This research makes an important contribution to the development of more efficient and durable solar panel technology by addressing the problem of heat generation.
Co-Authors Abdullah Akhwan, Muhamad Hafizuddin Amin Pujiati Aritonang, Gideon Arridina Susan Silitonga - Chee Ann, Lim Damayanti, Anggita Digita, Farhan Rama Dyah Maya Nihayah Fatriansyah, Jaka Fajar Jumaat, Abdul Kadir Linuwih, Baiq Diffa Pakarti Mas'ud, Imam Abdillah Md Razak, Mohamad Idham Nihayah, Annis Nurfitriana Nursaidah Nursaidah, Nursaidah Ovelia, Hanna Putri, Maharani Rahman, Yosi Aulia Ridzuan, Mardhiyah Surya Dharma Syahruddin, M. Tihara, Irma Hartia Zarin, Nur Izzati