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Indonesian Journal of Innovation and Applied Sciences (IJIAS)
Published by CV. Literasi Indonesia
ISSN : -     EISSN : 27754162     DOI : https://doi.org/10.47540/ijias.v1i2.192
Core Subject : Economy, Science, Education, Social, Engineering,
Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Industrial & Manufacturing Engineering Mathematics Social Sciences
AIM Indonesian Journal of Innovation and Applied Sciences (IJIAS) is an International Journal, Peer-Reviewed, and Open Access which is devoted to disseminating the results of community service, innovation research, and research results in applied sciences. IJIAS does not accept a critical review manuscript. IJIAS also publishes articles from other countries that are relevant. SCOPE The scope of publication in the Indonesian Journal of Innovation and Applied Sciences (IJIAS) includes research articles in the field of innovation, for example: Entrepreneurship, Social Engineering, Community Development, Social Learning, Political Education, and others. Meanwhile, the field of applied science covers community service activities related to Applied Technology, Health Services, Public Services, Conservation, and others.
Arjuna Subject : Umum - Umum
Articles 175 Documents
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Mapping of soil vulnerability to earthquake using the HVSR method in microtremor measurements in Marga Agung Area, South Lampung Regency Natalia, Fransiska; Khoiriyyah, Alfi; Syafitri, Meta Nisrina; Antosia, Risky Martin
Indonesian Journal of Innovation and Applied Sciences (IJIAS) Vol. 6 No. 1 (2026): February-May
Publisher : CV. Literasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47540/ijias.v6i1.2706

Abstract

This study was conducted in Marga Agung Village, Jati Agung Subdistrict, South Lampung Regency, using the Horizontal to Vertical Spectral Ratio (HVSR) method based on microtremor data. This study aims to analyze the characteristics of the subsurface layers and determine the soil vulnerability level in Marga Agung Village, through soil vulnerability zoning mapping based on the natural frequency (f0), amplification factor (A0), seismic vulnerability index (Kg), and shear wave velocity to a depth 30 meters (Vs30), and examined the potential level of building damage as a basis for earthquake disaster mitigation efforts. The results show that f0 values range from 0.31 Hz to 27.96 Hz,  A0 values range from 1.59 to 5.10, and Kg values range from 0.15 to 53.45, dominated by low seismic vulnerability index values. Vs30 values are dominated by stiff soil (Type D) and very dense and soft rock (Type C), with a range from 191.05 to 440.85 m/s. This indicates that most of Marga Agung Village has relatively low soil vulnerability to earthquake ground shaking.
Innovative approaches to reducing workplace accidents in coal mining: Evidence from PMDN IUP companies in South Sumatra Irwan, Faisal; Yusuf, Maulana; Toha, Taufik; Ibrahim, Eddy; Komar, Syamsul; Putra, Rahmat Wahyudi
Indonesian Journal of Innovation and Applied Sciences (IJIAS) Vol. 6 No. 1 (2026): February-May
Publisher : CV. Literasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47540/ijias.v6i1.2712

Abstract

This study examines the influence of the implementation of the Mining Safety Management System (SMKP) on workplace accident rates within coal mining operations. A quantitative research design was adopted, utilizing survey data obtained from 390 employees working in mining companies operating under IUP PMDN in South Sumatra. The variables investigated consist of technical risk control, adherence to Standard Operating Procedures (SOP), safety training and emergency drills, and the utilization of Personal Protective Equipment (PPE). Data analysis was conducted using multiple linear regression to assess both the individual (partial) and combined (simultaneous) effects of the independent variables on accident rates. The findings indicate that the regression model is statistically significant, with a coefficient of determination (R²) of 0.436, suggesting that 43.6% of the variability in workplace accidents is explained by the variables included in the model. At the individual level, safety training and PPE utilization demonstrate a significant effect on accident rates, whereas technical risk control and SOP compliance do not exhibit a statistically significant influence. These results suggest that behavioral aspects have a more prominent role compared to system-related factors in mitigating workplace accidents. Accordingly, this study underscores the need to prioritize the enhancement of safety training programs, strengthen safety awareness, and ensure consistent PPE compliance as critical strategies for improving safety performance in the mining industry.
Effect of pouring temperature on fluidity, porosity, density, and microstructure of Al-Si alloy in gravity die casting Sudarsono; Amir Arifin; Hidayat; La Ode Ahmad Barata; Aminur; Alain Kusmoko
Indonesian Journal of Innovation and Applied Sciences (IJIAS) Vol. 6 No. 2 (2026): June-September
Publisher : CV. Literasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47540/ijias.v6i2.2677

Abstract

The growing demand for lightweight aluminium components necessitates improved quality control in casting, particularly for aluminium–silicon (Al–Si) alloys produced via gravity die casting. This study systematically investigates the effect of pouring temperature on the fluidity, porosity, density, and microstructure of an Al–Si alloy using a gravity iron die mold with varying section thicknesses. Casting experiments were conducted at pouring temperatures of 600°C, 650°C, and 700°C to simulate thin-wall casting conditions. Fluidity was evaluated by measuring flow length, while density and porosity were determined using Archimedes’ principle. Microstructural evolution was characterized via optical microscopy. The results demonstrate that increasing the pouring temperature significantly enhances fluidity, enabling the complete filling of progressively thinner sections. However, higher temperatures also lead to increased porosity and reduced density, particularly in thicker sections, due to prolonged solidification times and reduced cooling rates. Microstructural analysis reveals that higher pouring temperatures and larger section thicknesses promote coarser α-Al dendrites, larger β-Si particles, and increased intermetallic phase aggregation; conversely, lower pouring temperatures and thinner sections result in finer, more homogeneous microstructures. These findings highlight the critical trade-off between mold-filling capability and internal casting quality, emphasizing the importance of optimizing pouring temperature in the gravity die casting of Al–Si alloys.
Advancing green skills in Indonesian Higher Education: roles, barriers, and transformative strategies Carolus Borromeus Mulyatno; Rian Antony
Indonesian Journal of Innovation and Applied Sciences (IJIAS) Vol. 6 No. 2 (2026): June-September
Publisher : CV. Literasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47540/ijias.v6i2.2705

Abstract

This article aims to provide a critical analysis of green skills development in higher education institutions (HEIs) in Indonesia. This critical analysis is conducted because HEIs are still experiencing obstacles in developing students' green skills. It is important to recognize that developing students' green skills is an indispensable prerequisite for obtaining new qualifications that are crucial in this era. The purpose of this article is to comprehensively examine the roles, challenges, and strategies of HEIs in Indonesia in developing students' green skills. This study uses a qualitative research methodology, focusing on exploring the perspectives of seven informants through in-depth interviews. The informants were selected through non-probability sampling, a method carefully applied to ensure the collection of high-quality information relevant to the research objectives. The study's findings indicate that HEIs play a crucial role in developing students' green skills through curriculum transformation, contextual learning, and collaboration with the workplace. Furthermore, these findings also contribute to the growing literature on green skills in higher education and offer practical recommendations for strengthening sustainability-oriented policies and practices in Indonesian universities. However, challenges such as limited educator capacity, lack of technical guidance, and lack of collaboration with the workplace persist.
Challenges and opportunities in managerial agility-based moderation at the Religious Education and Training Center, Makassar Hanafi Pelu; Amir Imbaruddin; Wahyu Nurdiansyah N; Andi Rasdiyanti
Indonesian Journal of Innovation and Applied Sciences (IJIAS) Vol. 6 No. 2 (2026): June-September
Publisher : CV. Literasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47540/ijias.v6i2.2723

Abstract

This research aims to investigate the challenges and opportunities inherent in implementing managerial agility-based moderation at the Makassar Religious Education and Training Center. As public sector organizations navigate increasingly complex and dynamic environments, the integration of agile methodologies within traditional bureaucratic structures has become a critical focal point for administrative reform. The primary objective of this study is to identify the specific factors that hinder or facilitate the adoption of managerial agility in promoting religious moderation and institutional effectiveness. Employing a qualitative research approach, the study utilizes an ethnographic design to gain in-depth insights into the organizational culture and individual experiences of key institutional actors. Data were collected through semi-structured interviews with diverse informants, supplemented by document reviews and participant observations to ensure comprehensive triangulation. The findings reveal that the primary challenges are rooted in psychological resistance, deeply ingrained rigid mindsets, and the heterogeneity of participants' prior understanding of agile concepts. Conversely, the implementation offers significant opportunities for enhancing strategic decision-making, fostering collaborative networks, and creating a more responsive organizational ecosystem. Ultimately, this research underscores that while the transition is energy-intensive and requires a paradigm shift, managerial agility serves as a vital competency for sustaining innovation and service quality within the Ministry of Religious Affairs. These results provide a practical roadmap for institutional leaders to balance modern administrative efficiency with established ethical and religious foundations.
The proliferation of electronic public participation and the perpetual digital inequalities in South African regions John Mamokhere
Indonesian Journal of Innovation and Applied Sciences (IJIAS) Vol. 6 No. 2 (2026): June-September
Publisher : CV. Literasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47540/ijias.v6i2.2743

Abstract

The Fourth Industrial Revolution (4IR) has accelerated digital transformation, creating opportunities for governments to enhance efficiency, transparency, accountability, public participation, and service delivery through digital technologies. In South Africa, electronic public participation (e-participation) has emerged as a strategic mechanism for strengthening public participation in municipal governance and the Integrated Development Planning (IDP) process. However, persistent digital inequalities continue to undermine these opportunities, particularly in rural municipalities across Limpopo, the Eastern Cape, and KwaZulu-Natal. This study investigates the structural and socio-economic factors perpetuating digital inequalities and their implications for inclusive e-participation in rural South African regions. A qualitative research approach was adopted, using thematic content analysis to examine evidence from appropriate municipalities. The findings reveal that municipalities such as Mkatazo Village, Mbhashe, Amathole, OR Tambo, Vhembe, and uMkhanyakude continue to experience inadequate broadband infrastructure, unreliable electricity supply, outdated digital systems, high data costs, limited access to digital devices, low digital literacy, language barriers, weak institutional capacity, limited political support, and constrained financial resources. Gender and age disparities further exacerbate digital exclusion. The study concludes that e-participation cannot realise its transformative potential without addressing these structural barriers. It recommends sustained investment in digital infrastructure, affordable connectivity, community-based digital literacy programmes, inclusive and localised e-participation models, strengthened institutional capacity, and stronger political commitment to embed e-governance reforms within municipal operations, thereby promoting equitable, inclusive, and sustainable digital governance in the 4IR era.
Techno-economic analysis of hybrid photovoltaic and stirling engine generator for offshore oil and gas platform Superman Misdi; Jaka Windarta; Mohamad Said Kartono Tony Suryo Utomo
Indonesian Journal of Innovation and Applied Sciences (IJIAS) Vol. 6 No. 2 (2026): June-September
Publisher : CV. Literasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47540/ijias.v6i2.2755

Abstract

The increasing demand for sustainable offshore oil and gas operations has driven the exploration of efficient and environmentally friendly hybrid energy systems. Conventional fossil fuel-based systems' consumption significantly contributes to greenhouse gas emissions and creates a need for innovative solutions that address environmental challenges while maintaining operational effectiveness. This study aims to analyse and evaluate a hybrid energy system that combines Stirling Engine Generator (SEG) technology and Photovoltaic (PV) panels, with the primary goal of enhancing energy efficiency, reducing carbon emissions, and improving the sustainability of offshore oil and gas operations. A comprehensive approach, integrating manual calculations and PVsyst software simulations, was used to analyse the performance of the Stirling and PV hybrid system. The research findings indicate that the hybrid system significantly improves energy efficiency and carbon emissions reduction compared to a fossil fuel-based system, with SEG utilizing heat from natural gas combustion and PV panels capturing solar energy, creating a synergistic effect with better overall performance and a lower environmental impact. Economically, the hybrid system minimizes fuel dependency and maintenance costs, benefiting from PV panels’ lower operational expenses compared to a fuel-based system. This combination not only aids emission reduction efforts but also presents a cost-effective solution over time, with the system’s ability to harness renewable energy and support compliance with emission reduction regulations. In conclusion, integrating SEG and PV technologies in a hybrid system offers a practical pathway to achieving emission reduction targets and maintaining operational efficiency, marking a step toward environmentally and economically sustainable practices in offshore oil and gas operations.
Social media-based advocacy in social work practice for domestic violence survivors: a mixed-methods study Ratna Supiyah; Hannin Pradita Nur Soulthoni; Muhammad Arsyad; Dian Puspita Rizki; Sarpin
Indonesian Journal of Innovation and Applied Sciences (IJIAS) Vol. 6 No. 2 (2026): June-September
Publisher : CV. Literasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47540/ijias.v6i2.2757

Abstract

This study examines the role of social media in the digital advocacy practices of social workers at the Office of Women's Empowerment and Child Protection (DP3A) of Kendari City in handling domestic violence (DV) cases. Employing a sequential explanatory mixed-methods design, the study integrated content analysis and engagement metrics of the DP3A's official social media accounts on Instagram, Threads, and Facebook (Quantitative Phase) with semi-structured in-depth interviews with social workers, social media administrators, and DV survivors (Qualitative Phase). A total of 73 posts were analyzed. Findings reveal that institutional activity content dominates (42.5%), while service-oriented content, including reporting procedures, contact information, and confidentiality assurances, remains markedly limited. Advocacy and campaign content generated the highest average engagement (10.0 per post), indicating audience responsiveness to social messaging. Qualitative findings indicate that survivors prefer private communication channels due to fear and stigma, suggesting that low public engagement does not equate to content ineffectiveness. A digital advocacy process model encompassing four phases, digital information exposure, initial contact, preliminary assessment, and formal service referral, is proposed. The study recommends strengthening survivor-centered content strategies, developing digital response protocols, and fostering cross-sector collaboration to optimize social media as an advocacy instrument for domestic violence services.
Life of mine pit design optimization in anticline coal deposits based on break- even stripping ratio and slope stability analysis Sylvia Della; Eddy Ibrahim; Taufik Toha; Maulana Yusuf; Syamsul Komar; Rahmat Wahyudi Putra
Indonesian Journal of Innovation and Applied Sciences (IJIAS) Vol. 6 No. 2 (2026): June-September
Publisher : CV. Literasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47540/ijias.v6i2.2767

Abstract

This study investigates how geological structure, economic limits, and slope stability can be integrated to optimize a Life of Mine (LoM) pit design in an anticline coal deposit. The objective is to determine an economically viable and technically safe pit design by evaluating pit shell alternatives using the Break-Even Stripping Ratio (BESR) and slope stability considerations. The study utilized secondary technical data from an existing mining project, including geological models, pit shell optimization results, mining cost parameters, geotechnical evaluations, mining constraints, and reserve estimates. No additional field investigation, numerical modeling, or recalculation of pit optimization and slope stability was performed. The anticline structure significantly influences seam geometry, overburden distribution, and stripping ratio characteristics. Pit shell evaluation was conducted using a BESR threshold of 5.8 bcm/ton. Among the evaluated alternatives, pit shell 4 was selected as the optimum design, generating approximately 61.51 million bcm of waste and 17.16 million tons of mineable coal, with an incremental stripping ratio of 5.04 and an accumulated stripping ratio of 3.58. Slope stability assessment indicated that several pit wall sections required geometry adjustments to meet safety requirements. The optimized LoM pit design resulted in a mineable coal reserve of 16.12 million tons. The findings demonstrate that integrating geological structure, BESR analysis, slope stability, and mining constraints is essential for producing a pit design that maximizes coal recovery while maintaining economic feasibility and operational safety in structurally complex coal deposits.
Assessment of public intention in polyethylene terephthalate (PET) plastic bottle waste sorting in Yogyakarta using the theory of planned behavior with a deposit refund system scheme Andika Dwi Saputra; Sri Hartini; Ratna Purwaningsih
Indonesian Journal of Innovation and Applied Sciences (IJIAS) Vol. 6 No. 2 (2026): June-September
Publisher : CV. Literasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47540/ijias.v6i2.2773

Abstract

The increasing amount of plastic waste in urban areas has become one of the major environmental challenges in Indonesia, including in Yogyakarta City. This study aims to analyze the factors influencing public intention to participate in the Deposit Return System (DRS) for Polyethylene Terephthalate (PET) bottle waste management using an extended Theory of Planned Behavior (TPB) framework. The study integrates additional variables, including environmental awareness, public information, religious or moral norms, economic consequences, convenience, social factors, technology, and institutional support. A quantitative explanatory approach was employed through the distribution of online questionnaires to 200 respondents in Yogyakarta City. Data were analyzed using Structural Equation Modeling based on Partial Least Squares (SEM-PLS). The results indicate that attitude, subjective norm, and perceived behavioral control positively and significantly influence intention to participate in the DRS program. Subjective norm was identified as the most dominant factor influencing intention. Environmental awareness significantly influenced attitude, while public information significantly influenced subjective norm and perceived behavioral control. Convenience and economic consequence also positively affected perceived behavioral control. However, religious or moral norms, technology, and institutional support did not show significant effects on several TPB constructs. The findings indicate that social influence, system convenience, and economic incentives are the main factors encouraging public participation in PET bottle recycling through the DRS program. This study contributes to the development of the Theory of Planned Behavior in the context of sustainable waste management and provides practical recommendations for policymakers in designing effective recycling programs.

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