Abstract:The increasing use of electric vehicles in Indonesia is a step in the framework of transforming the transportation system to be more environmentally friendly to achieve the Net Zero Emission target of 2060. However, the…
increasing use of electric vehicles is not only due to technical and policy changes, but also communication efforts. This study attempts to analyze the sustainability communication strategy used by the TikTok account @eos_indonesia in providing education related to electric vehicles. This study uses a qualitative method with a content analysis approach, These methods consist of digital participatory observation and documentation, The data collection is an analysis of the TikTok account @eos_indonesia content data that will be taken with a time span of April 2025 - June 2026 according to the classification that has been made, the data collected includes: video content (visual, audio and narrative). and content analysis has stages, starting from determining the unit of information, data sampling, recoding or recoding data (coding), grouping based on certain categories until finally interpreting the meaning contained in the message content. The research results show that sustainability communication strategies are carried out through five approaches: providing environmental education, reducing the complexity of electric vehicle technology, storytelling based on user experience, digital visual persuasion, and combining economic and environmental benefits in every communication message. This study contributes to the field of digital communication and sustainability communication by demonstrating the potential effectiveness of social media as a public education platform towards green transportation transformation in Indonesia.
Abstract:The purpose of this study is to examine how product quality influences consumers' decisions to buy electric cars in Makassar City, using brand image as a mediating factor. The swift expansion of electric vehicle adoption…
necessitates a comprehensive understanding of the factors influencing customer purchasing behavior in this nascent sector. A quantitative methodology utilizing an explanatory study design was implemented to examine the causal links among the variables. The population comprised consumers who had acquired or utilized electric vehicles in Makassar City, while the precise population size remained unspecified. A purposeful non-probability sampling strategy was employed, resulting in 105 respondents who completed a structured online questionnaire sent using Google Forms. The data were analyzed utilizing SEM-PLS with SmartPLS to investigate both direct and indirect effects among the constructs. The findings demonstrate that product quality positively and significantly impacts purchase decisions, product quality positively and significantly influences brand image, and brand image positively and significantly affects purchase decisions. Additionally, brand image serves as a partial mediator in the correlation between product quality and purchasing decisions. The findings indicate that superior product quality in electric vehicles is more influential in influencing purchasing decisions when it concurrently cultivates a favorable brand image in consumers' perceptions, thus offering strategic insights for manufacturers and distributors in formulating marketing strategies that enhance both product quality and brand image.
Abstract:This study aims to analyze strategies for strengthening work culture through the implementation of ethical leadership and servant leadership at PT. Mitsubishi Electric Automotive Indonesia, and to identify the challenges…
and contributions of these two leadership styles to strengthening work culture in the automotive manufacturing industry. This study used a qualitative approach with a single case study method. Data were collected through in-depth interviews with 10 informants consisting of management level, supervisors, and production line employees. Participatory observation was conducted over three weeks, supported by analysis of company documents. Data analysis used direct interview methods and in-depth observation. The results of the study revealed five main implementation strategies: (1) leaders exemplifying ethical behavior; (2) employee empowerment through delegation of authority; (3) developing two-way communication mechanisms; (4) creating a supportive and family-like work environment; and (5) integrating ethical values into the performance management system. The dimensions of family atmosphere and identification with the leader were identified as key success factors in Indonesia's collectivist cultural context. Key challenges include resistance to change, measuring short-term impact, and consistency amidst production pressures. This study recommends integrating ethical values and servant behavior into recruitment systems, developing ethics-based leadership training programs, and designing performance management systems that balance quantitative targets with ethical behavior assessments. This study is the first to integrate ethical leadership and servant leadership within a framework for strengthening work culture in the automotive manufacturing industry, with specifically case study in PT. Mitsubishi Electric Automotive Indonesia and identifies the family atmosphere dimension as a novel finding within a collectivist cultural context.
Abstract:This paper presents the design and performance evaluation of a high-voltage direct current (DC) generator based on the Cockcroft–Walton (CW) voltage multiplier for laboratory-scale applications in electrical engineering.…
g. Conventional high-voltage generation methods often involve bulky transformers and complex circuitry, making them less suitable for compact and cost-effective laboratory use. To address these limitations, a modular CW-based system is proposed, integrating a high-frequency input source with an optimized diode-capacitor ladder network. The proposed system is designed to achieve high DC voltage output in the kilovolt range while maintaining acceptable levels of ripple and efficiency. Experimental results show that the system can achieve up to 86% of the theoretical output voltage under no-load conditions, with an efficiency of around 70.8%. Furthermore, the ripple voltage of the generated output voltage is very small, demonstrating stable performance suitable for laboratory applications. The proposed design offers a compact, cost-effective, and reliable solution for high-voltage DC generation, making it highly suitable for educational and low-power applications.
Abstract:Infrastructure management in outermost border islands is not only a matter of physical development, but also a strategic issue related to sovereignty, community welfare, connectivity and national defence. This article examines…
amines infrastructure management on Miangas Island, one of Indonesia’s northernmost outer islands bordering the Philippines. Although Miangas already has several basic and strategic infrastructures, including roads, an airport, a port, electricity facilities, clean water sources, telecommunications, health facilities and security infrastructure, these assets have not yet functioned as an integrated and reliable system. The main problem is therefore not the absence of infrastructure, but the gap between physical availability and functional performance. This study uses a qualitative descriptive-analytical approach based on field observation, semi-structured interviews and document review. Data were analysed using the Miles and Huberman model, supported by STEEP+M and SWOT analysis. The findings show that infrastructure management in Miangas is influenced by three main indicators: infrastructure availability and quality, connectivity and accessibility, and infrastructure sustainability. Internally, Miangas has strengths in its strategic geography, existing infrastructure assets, state institutional presence, social cohesion and strong national identity. However, these strengths are constrained by weak service quality, limited maintenance, unstable connectivity, a fragile local economy and inadequate maritime surveillance. Externally, Miangas benefits from national legal support, strategic policy status and Indonesia–Philippines cooperation, but faces threats from cross-border dependence, illegal fishing, border violations, environmental pressure and geopolitical sensitivity. The SWOT analysis places Miangas in the WO quadrant, meaning that external opportunities should first be used to overcome internal weaknesses. This article proposes the Civil-Military Corridor Resilience Model as an integrated framework that connects public services, logistics, energy, local markets, maritime security and territorial defence in one border resilience system.
Abstract:The growing emphasis on sustainable urban mobility has positioned electric vehicles (EVs) as a strategic component of transport transformation, particularly in developing cities with constrained infrastructure systems. One…
ne of the key challenges in supporting EV adoption is the provision of accessible charging infrastructure, which is closely related to user perception of acceptable service distance. This study aims to determine the optimal service distance of Electric Vehicle Charging Stations (EVCS) based on user preferences in Pekanbaru City, Indonesia, and to explore its implications for spatial planning. A quantitative approach was employed using a questionnaire survey of 51 respondents distributed across 15 administrative districts. All respondents were non-EV users, representing potential adopters in the early stage of transition. The survey captured preferred EVCS distance using interval-based categories, along with respondents’ awareness and intention toward EV adoption. The results indicate that the dominant preferred distance falls within the 2–4 km range, with an estimated mean of 3.08 km and a standard deviation of 1.98 km, resulting in an effective range of approximately 1–5 km. Considering urban road network constraints and detour factors, this range is further adjusted to 3–6 km to reflect more realistic travel conditions. These findings suggest that a relatively dense and accessible charging network is required to reduce range anxiety and support EV adoption. From a spatial planning perspective, a 4 km service threshold is proposed as a practical reference for EVCS deployment, representing the central tendency of user preferences within the adjusted range. This study highlights the importance of integrating user-based spatial parameters into infrastructure planning and contributes to the literature by emphasizing the role of perceived accessibility in shaping EV infrastructure demand in developing urban contexts.
Abstract:This study aims to develop a technically compliant and economically feasible design for a Restricted Security Area (RSA) perimeter fence surrounding Substation 7, the Chiller facility, and the Ground Water Tank (GWT) at…
Kertajati International Airport. These facilities constitute critical operational infrastructure supporting electricity distribution, terminal cooling systems, and water supply, including fire suppression reserves. Field observations identified the absence of a regulation-compliant perimeter protection system, exposing the utility cluster to unauthorized access and operational risk. The research employed a quantitative descriptive–analytical approach integrating field measurement, engineering design modeling, volume computation, and cost estimation based on the 2024 Majalengka Regional Standard Unit Price. Technical evaluation referred to national aviation security regulations and ICAO Annex 17 principles. A BRC (British Reinforced Concrete) fence system with a total height of 3.20 meters (2.40 m fence body and 0.80 m concertina wire) was proposed. The structural configuration includes reinforced concrete isolated footings, tie beams (sloof), and a bottom plinth beam to ensure lateral stability and anti-climb resistance. The total perimeter length of 313.74 meters ensures complete enclosure of the critical facilities. The estimated total project cost amounts to IDR 509,553,000.00, including VAT. The results demonstrate that the proposed design is structurally reliable, regulation-compliant, and economically justified within a risk mitigation framework. The study contributes a replicable engineering and financial planning model for strengthening airport critical infrastructure protection and enhancing long-term operational resilience.
Abstract:MAA-72 well experienced a decrease in production rate, Pump IND1300 42 hz / pump ROR of 960- 1640 bfpd. Well production is Qgross 599.97 bfpd. The required data obtained are general report electrical submersible pump, reservoir…
servoir data, fluid properties data, production data and wellprofile data, data obtained directly from the computer in the field. In data processing, the method is to determine the potential analysis of the well, evaluate the installed pump, and optimize the well with a new pump. Optimum results of 1498.55 bfpd, Gf 0.435 Psi/ft, IND1300 pump evaluation, namely PIP 170.37 Psi, TDH 1782.27 ft, PSD 1969.42 ft, number of stages 200 stages, EP 49% and Hp 33.5. Optimization was carried out by replacing the pump. New pump selection DN1800/60 Hz / ROR 1200-2400 bfpd, head/stage 22 ft, Hp 0.34 EP 70%. Determination of new pump PSD 2022.94 ft, PIP 43.5 Psi, TDH 2212.32 ft, number of stages 22 stages. Increase in Qact production rate (599.97 bfpd) to (1498.55 bfpd) with a rate increase of 898.58 bfpd.
Abstract:The rapid transition to electric vehicles (EV) is driven by global environmental concerns and the need to reduce dependence on fossil fuels. In Indonesia, EV adoption faces challenges related to market dynamics, consumer…
behavior, and effective communication strategies. Marketing research and understanding consumer behavior aims to collect and obtain more detailed information and knowledge about customers towards electric vehicle products. Through this, it can understand customers and their tastes, preferences, reflect the future, and also help reduce the risk of product and business failure. Using Word of Mouth communication as part of a marketing strategy that can be carried out by companies in maintaining their business desires. In this article, the author tries to understand the concept of market research, consumer behavior, and the Word-of-Mouth communication model using a qualitative library observation approach, this study analyzes existing research on how these three factors contribute to the growth and long-term survival of the electric vehicle market. Market research provides insight into consumer preferences and market trends, offering important data to align EV products with consumer needs. Understanding consumer behavior is essential in overcoming perceived barriers, such as cost and infrastructure limitations, that hinder EV adoption. Meanwhile, word of mouth communication plays an important role in influencing consumer decisions by fostering trust and awareness of the benefits of EVs. The findings highlight the interconnections between these factors and their collective impact on the development of sustainable marketing strategies for EVs in Indonesia. This study provides valuable insights for stakeholders, including automotive companies and policymakers, in designing more effective marketing approaches that support the sustainable growth of the EV sector.
Abstract:The results of the study show that the six independent variables, namely: Entry Variable (ENT), Long-Distance Transportation (TJJ), Tourism Promotion (PW), Short-Distance Transportation (TJD), Hospitality (HOS) and Supporting…
rting Infrastructure (IP) together contribute an influence of 60.30 % on the decision of foreign tourists to visit the Province of East Nusa Tenggara. There are three variables that have a positive and significant influence on the choice of tourists to NTT, namely the ENT variable, TJJ and the PW variable; while the other three variables have no significant influence, namely, TJD , HOS and IP . For domestic tourists, Simultaneously, the five independent variables contribute 87.3% of the influence on the decision of domestic tourists to visit the Province of East Nusa Tenggara. However, partially, TJJ and PW have a significant effect, while TJD , HOS and IP have no significant effect on the choice of domestic tourists to visit the Province of East Nusa Tenggara. industry business before the preparation and implementation of Sail Komodo, shows that both additional investment, additional workforce , tourist visits, additional length of stay and income/turnover of business actors are in the low category. The condition of tourism business actors during the preparation, during and after the implementation of Sail Komodo shows a rapid increase. The three main variables that experienced a rapid increase during the preparation, during the implementation and after the implementation of Sail Komodo are additional tourist visits , additional turnover/ income and additional tourist stay time. Before the implementation of Sail Komodo, the environmental security conditions at tourist locations in NTT were already in the moderate category , compared to other variables that were in the low category . The condition of tourist locations during preparation, during implementation and after the implementation of Sail Komodo were in the moderate category except for additional electricity supply which was in the low category.