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INDONESIA
Jurnal Ar Ro'is Mandalika (Armada)
Published by Institut Penelitian dan Pengembangan Mandalika Indonesia
ISSN : 27748499     EISSN : 27748499     DOI : 10.59613
Core Subject : Religion, Education,
Religion Education Languange, Linguistic, Communication & Media Mathematics
Jurnal ini merupakan sarana publikasi ilmiah untuk menyebar luaskan informasi khususnya hasil penelitian dibidang Agama dan sosial Humaniora. Selain mepublikasi hasil penelitian, jurnal ini juga menerima manuskrip hasil kajian pustaka dan laporan lainnya untuk dipublikasikan.
Arjuna Subject : Ilmu Sosial - Pendidikan
Articles 311 Documents
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Optimasi Produksi dan Purifikasi Hidrogen melalui Reformasi Uap Metana pada Reaktor Mikrokanal Menggunakan Simulasi DWSIM dan AspenPlus Christyanto, Dannar; Sudarmanta, Bambang
Jurnal Ar Ro'is Mandalika (Armada) Vol. 6 No. 3 (2026): JURNAL AR RO'IS MANDALIKA (ARMADA)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59613/armada.v6i3.6191

Abstract

Hydrogen is one of the clean energy vectors with great potential to support the transition toward a sustainable energy system. However, hydrogen production is still predominantly based on fossil-fuel processes, particularly Steam Methane Reforming (SMR), which is endothermic in nature and requires optimal process control to achieve high efficiency and purity. This study aims to optimize the hydrogen production and purification process through steam methane reforming in a microchannel reactor using a simulation-based approach. Microchannel reactors are selected due to their high surface-to-volume ratio, which enhances heat and mass transfer as well as reaction temperature stability. Process simulations were conducted using DWSIM software with the Peng–Robinson thermodynamic model to analyze the effects of operating parameter variations, including reformer temperature, operating pressure, and steam-to-methane ratio, on methane conversion and hydrogen mole fraction. The simulation results indicate that increasing the reformer temperature significantly enhances hydrogen production, reaching optimal conditions in the range of 900–950 °C, where the system approaches thermodynamic equilibrium. The integration of Water Gas Shift and Pressure Swing Adsorption (PSA) units within the simulated system is shown to improve hydrogen purity to above 98%. This study demonstrates that a simulation-based microchannel reactor approach is effective in determining optimal operating conditions and has strong potential to serve as a foundation for the development of efficient, sustainable, small-scale, and modular hydrogen production systems.
The Role of Perceived Service Quality in Enhancing Customer Retention: The Moderating Effect of Customer Trust Prakoso, Budi
Jurnal Ar Ro'is Mandalika (Armada) Vol. 6 No. 3 (2026): JURNAL AR RO'IS MANDALIKA (ARMADA)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59613/armada.v6i3.6195

Abstract

This study aims to examine the role of perceived service quality in enhancing customer retention, with customer trust serving as a moderating variable. In an increasingly competitive business environment, a firm’s ability to retain customers has become a crucial determinant of long-term performance sustainability. Perceived service quality is defined as customers’ subjective evaluation of service excellence relative to their expectations. Meanwhile, customer trust reflects customers’ confidence in the reliability, integrity, and competence of service providers. This research employs a quantitative approach using a survey method targeting customers who have utilized the service over a specific period. Data were collected through structured questionnaires and analyzed using moderated regression analysis to test the relationships among variables. The findings indicate that perceived service quality has a positive and significant effect on customer retention. Furthermore, customer trust is proven to act as a moderating variable that strengthens the influence of perceived service quality on customer retention. This suggests that higher levels of customer trust amplify the impact of perceived service quality in encouraging customers to remain loyal. These results imply that organizations should not only consistently improve service quality but also actively build and maintain customer trust through transparency, reliability, and long-term commitment. This study contributes both theoretically and practically by enriching the empirical literature on customer behavior in the service sector and providing managerial insights for developing effective relationship marketing strategies aimed at sustaining customer retention.
Analisis Pemanfaatan Limbah Kulit Jagung (Corn Husks) sebagai Bahan Tambah Campuran Beton Terhadap Kuat Tekan Paving Block Rahman, Muhammad Amin; Rahman, Qarnila Ridhaniah
Jurnal Ar Ro'is Mandalika (Armada) Vol. 6 No. 3 (2026): JURNAL AR RO'IS MANDALIKA (ARMADA)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59613/armada.v6i3.6196

Abstract

The waste from corn, apart from the cobs, also includes corn husks. Various methods have been explored to process corn husk waste into something beneficial, ranging from recycling the husks to utilizing them as a material in building construction. One such application is using corn husk waste as an additive in the production of paving blocks. Paving blocks are a popular alternative for surface paving due to their ease of installation, low maintenance costs, and aesthetic appeal, making them highly sought after. The aim of this research is to examine the compressive strength of paving blocks when using corn husk waste as a mixture component. The testing was conducted when the specimens reached the ages of 7, 14, and 28 days. The research methodology consists of the following steps: 1) Material inspection, 2) Paving block mix design, 3) Specimen production, 4) Specimen curing, 5) Compressive strength testing, and data analysis. The results of the tests indicated that paving blocks with a 10% corn husk mixture, and paving blocks with a 10% corn husk mixture and 2.5% lime, yielded the highest compressive strength. When more than 10% corn husk waste was used, it caused a reduction in compressive strength. Paving blocks mixed with lime showed lower compressive strength compared to those with corn husk waste without lime.
Optimization of Quality Control for Non-Dairy Creamer Products at PT. XYZ Based on Statistical Process Control (SPC) to Improve Production Efficiency Sulkhan, Sulkhan; Alex, Alex
Jurnal Ar Ro'is Mandalika (Armada) Vol. 6 No. 3 (2026): JURNAL AR RO'IS MANDALIKA (ARMADA)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59613/armada.v6i3.6197

Abstract

The competitive dynamics of the Fast-Moving Consumer Goods (FMCG) industry, particularly in the non-dairy creamer sector, necessitate stringent quality control to ensure production efficiency. This study aims to analyze process stability, evaluate process capability, and identify root causes of quality variability in the production of non-dairy creamer using the Statistical Process Control (SPC) approach. Critical to Quality (CTQ) parameters, including net weight and moisture content, were monitored over 30 production days with a total of 150 and 210 observations, respectively. The methodology employed Anderson-Darling normality tests, X̅ ─ R control charts, and process capability indices (Cp and Cpk). The results indicated that the moisture content process was stable and highly capable (Cpk = 1.85). However, the net weight analysis revealed a special cause variation in subgroup 15, exceeding the Upper Control Limit (UCL), despite maintaining an overall excellent capability (Cpk = 1.70). Root cause analysis using a Fishbone Diagram identified dust accumulation on the load cell sensors and inadequate cleaning SOPs as the primary factors for the over-filling anomaly. This research formulates corrective recommendations, including the implementation of an automated self-cleaning system and digital monitoring, to minimize rework costs and optimize raw material usage, thereby enhancing overall production efficiency.
Effect of Hydrogen Mass Flow Rate on Performance and Emission Characteristics of a Dual-Fuel LPG Gas Engine: Experimental and Numerical Analysis Febrianto, Wigung Tri; Sudarmanta, Bambang
Jurnal Ar Ro'is Mandalika (Armada) Vol. 6 No. 3 (2026): JURNAL AR RO'IS MANDALIKA (ARMADA)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59613/armada.v6i3.6198

Abstract

Indonesia’s electricity sector remains heavily dependent on fossil fuels, with gas-based generation widely used for small- and medium-scale applications. Although liquefied petroleum gas (LPG) burns cleaner than coal and diesel, LPG-fueled engines still emit carbon-based pollutants. Hydrogen enrichment is a promising transitional strategy to improve combustion and reduce emissions without major engine modifications. This study evaluates the effect of hydrogen mass flow rate on the operational characteristics of an LPG gas engine operating in dual-fuel mode using combined experiments and numerical simulation. Experiments were performed on a single-cylinder, four-stroke LPG engine–generator operated at a constant 3000 rpm under steady-state electrical loads. Hydrogen was supplied at controlled mass flow rates while LPG remained the primary fuel. Performance parameters, air–fuel ratio, operating temperatures, and exhaust emissions were measured. In parallel, in-cylinder combustion was analyzed using ANSYS Forte, supported by a mesh sensitivity study to ensure numerical reliability. Hydrogen enrichment improved performance across the investigated load range, yielding maximum increases of 12.2% in shaft power, 17.2% in torque, and 8.2% in brake mean effective pressure. Specific fuel consumption decreased by up to 13.1%, while thermal efficiency increased by up to 13.5% compared with LPG-only operation. Hydrogen-enriched operation enabled leaner combustion at equivalent loads and reduced engine and lubricant temperatures by up to 12.2% and 8.3%, respectively. Emissions decreased, with maximum reductions of 8.2% in CO and 9.4% in HC. These outcomes indicate that hydrogen primarily functions as a combustion enhancer by accelerating flame propagation and promoting more complete oxidation, supporting LPG–hydrogen dual-fuel operation as a practical pathway toward lower-carbon distributed power generation.
Implementation of Proportionality and Professionalism Principles in Public Online Complaint Services Nursyam, Andi Resky; Arake, Lukman; Jumriani Nawawi
Jurnal Ar Ro'is Mandalika (Armada) Vol. 6 No. 3 (2026): JURNAL AR RO'IS MANDALIKA (ARMADA)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59613/armada.v6i3.6205

Abstract

This study examines the principles of proportionality and professionalism of government apparatus in implementing the online public complaint and aspiration services (LAPOR SP4N) in Bone Regency, Indonesia, with a focus on its alignment with maqāṣid al-syarī‘ah. Using a qualitative approach, the research evaluates both legal frameworks and operational practices of the service, revealing that the system, though legally grounded in local regulations, faces challenges such as limited human resources, insufficient technological infrastructure, and delayed responses. The study further explores how the maqāṣid al-syarī‘ah framework, particularly the principles of ḥifẓ al-dīn (protection of religion), ḥifẓ al-nafs (protection of life), ḥifẓ al-‘aql (protection of intellect), ḥifẓ al-māl (protection of wealth), and ḥifẓ al-nasl (protection of lineage), is integrated into public administration, ensuring ethical governance and the welfare of the community. The findings highlight how proportionality and professionalism are operationalized through clear division of duties, ethical public communication, and efficient budget management. However, improvements in the speed of responses, digital literacy of human resources, and transparency are essential for enhancing service effectiveness. The research contributes to the discourse on integrating Islamic governance principles in modern public administration, offering insights for more inclusive and accountable governance systems.
Analyzing the Interconnection between Agricultural Economic Resilience Social Equity and Environmental Conservation in Sustainable Agribusiness Models Hartawaty, Dheny Arina
Jurnal Ar Ro'is Mandalika (Armada) Vol. 6 No. 3 (2026): JURNAL AR RO'IS MANDALIKA (ARMADA)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59613/armada.v6i3.6207

Abstract

This research explores the interconnection between agricultural economic resilience, social equity, and environmental conservation in sustainable agribusiness models. It examines how integrating these three factors can improve agricultural sustainability, particularly for smallholder farmers in developing countries, who are often vulnerable to economic shocks, social inequality, and environmental degradation. The study aims to develop a comprehensive framework that combines these elements to create more resilient, inclusive, and sustainable agribusiness models. The research employs a library-based methodology, utilizing secondary data from books, journal articles, case studies, and reports on sustainable agriculture, social equity, and economic resilience. The analysis reveals that integrating economic resilience strategies such as climate-smart agriculture, promoting social equity by ensuring access to resources for marginalized groups, and adopting environmentally sustainable practices significantly improves the productivity and sustainability of agricultural systems. Furthermore, the study highlights the need for policies that foster the interconnectedness of these factors, ensuring the creation of sustainable agribusinesses that benefit both farmers and the environment. The findings emphasize the importance of an integrated approach to achieve long-term sustainability in agriculture, offering valuable insights for policymakers, farmers, and agribusinesses.
Soil Investigation for Foundation Planning in the Upgrade of a Class D Hospital to Class C Fahri, Tengku Muhammad; Abdhi Ridha, Muhammad
Jurnal Ar Ro'is Mandalika (Armada) Vol. 6 No. 3 (2026): JURNAL AR RO'IS MANDALIKA (ARMADA)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59613/armada.v6i3.6208

Abstract

This study presents the results of a soil investigation conducted for the upgrade of a Class D hospital to Class C at RSUD Tafaeri in North Nias Regency, Indonesia. The objective of the investigation was to assess the soil conditions and determine the appropriate foundation design for the proposed construction. Two boreholes (BH-01 and BH-02) were drilled to a depth of 30.45 meters, and Standard Penetration Tests (SPT) were performed at 2-meter intervals. The lithological profile of the site revealed a combination of clayey silt, fine sandy silt, and dense sand layers. The SPT results showed a significant increase in N-values from 10-15 at shallow depths to 30-40 at deeper layers, indicating a transition from loose to dense soils. Groundwater was encountered at a shallow depth of approximately 1.50 meters for BH-01 and 1.00 meter for BH-02. Laboratory testing of disturbed and undisturbed soil samples provided further insights into the physical and mechanical properties of the soil, including moisture content, unit weight, and specific gravity. Bearing capacity calculations suggested that both shallow and deep foundations could be used, with pile foundations being more suitable for higher loads. This study provides critical data for designing foundations that ensure the stability and safety of the upgraded hospital. Recommendations for future research include considering environmental factors and further refining foundation designs based on building load and soil characteristics.
Analysis of the Determination of Production Costs in Rice Farming in Padas Village, Tanon District Haryanto, Wawan
Jurnal Ar Ro'is Mandalika (Armada) Vol. 6 No. 3 (2026): JURNAL AR RO'IS MANDALIKA (ARMADA)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59613/armada.v6i3.6214

Abstract

The agricultural sector is very helpful for the people's economy in the business world in accounting science to calculate the cost of production with careful calculations will provide benefits to minimize losses that can occur, and can cultivate the calculation of crop production, fertilizer and drug costs, capital interest, equipment depreciation, labor costs, in this study, the method used is purposive sampling with the consideration that the rice production area of the Padas village area with the Research Hamlet is Concluded as follows: The largest total cost expenditure in this study per hectare is the highest in Sukorjo Hamlet Rp. 29,895,118 while the smallest cost expenditure is 1 while the highest price of rice is Dadapan Rp. 6,127 while the lowest price is Rp. 2,341. The limitations of the research from the variables I use are only Padas Village, maybe the research can do many variables.
Reconstructing the Connectivity Court System in Indonesia: From Collaborative to Integrative Paradigm Hakim, Lukman
Jurnal Ar Ro'is Mandalika (Armada) Vol. 6 No. 3 (2026): JURNAL AR RO'IS MANDALIKA (ARMADA)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59613/armada.v6i3.6216

Abstract

This study aims to analyze the reconstruction of the criminal justice system from an ad hoc and delegative model to a permanent and attributive model in the Indonesian criminal justice system. This study uses a descriptive-analytical normative juridical method with a legislative, historical, and conceptual approach. Secondary data, including primary, secondary, and tertiary legal materials, were collected through literature studies and analyzed qualitatively using deductive reasoning and various methods of legal interpretation. Departing from the theoretical framework of authority, the rule of law, and equality before the law, this study not only dissects legal dogma but also its implications for civil-military relations and judicial independence. The findings show that connectivity currently functions more as an incidental procedural mechanism that depends on executive discretion, so it is often ignored and opens up room for forum shopping and disparities in punishment between civilian and military perpetrators. On that basis, this study proposes a reconstruction of the connectivity court through the direct attribution of authority in the law to a permanent connectivity court, with a mixed composition of judges and the structuring of the role of the Deputy Attorney General for Military Crimes as dominus litis. This reconstruction is accompanied by recommendations for revisions to the Criminal Procedure Code and the Military Court Law in order to strengthen justice, legal certainty, and judicial independence.

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