Publication Search

The development of small and medium enterprises (SMEs) and household industries is often regarded as the economic foundation of a region. However, much of the existing research in Indonesia remains focused on quantitative descriptive analysis, while providing limited attention to spatial dynamics and interregional disparities. This study aims to critically evaluate the spatial distribution patterns of SMEs and household industries at the regency and city levels, with particular emphasis on clustering tendencies, unequal distribution, and their relationships with regional characteristics. A spatial analysis approach is employed to identify spatial autocorrelation and industrial clustering patterns, which is complemented by a structural analysis of infrastructure availability, market accessibility, and regional institutional capacity. The findings indicate that the distribution of SMEs and household industries is not geographically random, but rather forms clusters that are predominantly concentrated in areas with higher levels of accessibility and economic activity. This condition reflects spatial inequality that may exacerbate development disparities between regencies and cities. Furthermore, the results reveal that uniform industrial development policies are insufficient to accommodate the diverse spatial characteristics across regions. Therefore, this study underscores the importance of formulating spatially informed and context-sensitive policies for the development of SMEs and household industries in order to promote more balanced and sustainable regional industrial development.

Bridge planning is a fundamental aspect in the development of transportation infrastructure that functions to connect regions, facilitate traffic flow, and support economic and social growth in the community. This study aims to comprehensively examine the stages of bridge planning, from identifying traffic needs and analyzing geotechnical conditions to selecting a structure type, and evaluating technical, economic, and environmental aspects. The methods used include field surveys, traffic data collection, design load analysis, and structural simulation using modeling software. The study results indicate that bridge type selection is not only determined by load capacity and cost efficiency, but must also consider sustainability, aesthetics, and the impact on the surrounding ecosystem. This study emphasizes the importance of integrating technical, social, and environmental aspects in bridge planning, so that the resulting design can provide a safe, efficient, and sustainable solution. Thus, bridge planning is not merely a technical process, but also a development strategy that supports connectivity and community welfare.

Management of household waste in Final Disposal Sites (TPA) faces a serious problem, where most of the waste accumulates and is difficult to decompose due to its complex nature. This condition substantially inhibits natural decomposition processes and limits the effectiveness of recycling efforts. Pre-processing operations, such as sorting and crushing, which are still dominated by manual methods, are proven to be inefficient, high-risk, and require large allocations of land resources and manpower. Therefore, automated technological innovation is needed to facilitate the efficient separation of organic components from inorganic materials (packaging). This research was conducted to determine the design and structural strength analysis of a hammer mill type depackaging machine, carried out using Solidworks software. Structural analysis simulation utilizes Finite Element Analysis (FEA) to determine the structural strength of the machine. The specifications of the hammer mill type depackaging machine include a capacity of 3000 kg/hour, a hammer mill input power of 12 KW, and a rotational speed of 2500 rpm with a torque of 34.54 Nm. Meanwhile, the screw conveyor input power is 0.75 KW and the rotational speed is 20 rpm. The FEA simulation analysis results for the hammer mill type depackaging machine showed that the maximum Von Mises stress value recorded is 3,022×10^7   N⁄m^2 , the maximum displacement value measured is very minimal, namely 2,793×10^(-1)  mm, and the Factor of Safety (FOS) obtained is 8.3. This FOS value significantly exceeds the required minimum safety limit (>3), confirming that the machine design has optimal reliability, fatigue resistance, and structural integrity for operation under intensive working conditions at the TPA. The conclusion of this study indicates that the engineering design of this hammer mill type depackaging machine is safe and meets structural technical requirements to proceed to the implementation phase, potentially becoming a sustainable technological solution in improving the efficiency of waste pre-processing.

The rapid advancement of science and technology requires universities to provide safe, comfortable, and representative learning facilities. One such initiative is the construction of a five-story lecture building at Dr. Soetomo University, designed with a steel structure as an alternative to reinforced concrete. Steel was chosen due to its high tensile strength, uniform material properties, lighter weight, ease of installation, and strong resistance to earthquake loads. This study aims to design a five-story lecture building with a steel structure that meets the requirements of strength, stability, and safety in accordance with applicable standards. The method applied is structural planning based on SNI 1729:2020, SNI 1727:2020, and SNI 1726:2019 using the Load and Resistance Factor Design (LRFD) approach. Structural analysis was conducted with SAP2000 version 2014 through three-dimensional modeling that considers geometry, material properties, loading, and placement. The results show that the selected steel profiles for beams, columns, and connections are capable of supporting the combination of dead loads, live loads, and seismic loads with safe performance. The maximum stress remains below the allowable limit, and the deflection values do not exceed the permitted deviation. These findings confirm that steel provides efficiency in dimensions and materials while offering practicality and earthquake resistance, and the design produced can serve as a useful reference for future multi-story building projects in earthquake-prone regions.

The Nurul Ikhlas Mosque, also known as Surau Parak Mujua, located in Pakan Akek, Jorong Kajai, Nagari Koto Baru, Solok Regency, is an important center of religious and social activities for the local community. In June 2023, the mosque suffered a major fire that destroyed the entire structure, creating an urgent need to redesign it to be more functional, ergonomic, efficient, and adaptable to local conditions. This community service project aimed to produce an architectural design that not only met structural and functional needs but also accommodated the social aspirations and cultural values of the local community. The methods used in this project included field observations to understand the community's conditions and needs, participatory discussions with local community leaders to explore aspirations and hopes, technical drawings using AutoCAD software, and structural analysis using ETABS to ensure the building's earthquake resistance. Ergonomics were a key consideration in this design, encompassing circulation flow, room dimensions, natural ventilation, and the selection of materials that were friendly and safe for the elderly, children, and people with disabilities. The output of this activity is a variety of design documents, including floor plans, elevations, building sections, floor plans, columns and beams, and 3D visualizations that can be used as a guide for phased construction. This program demonstrates the importance of collaboration between universities and the community in responding to post-disaster infrastructure needs. This knowledge-based, participatory approach is expected to produce a final design that is appropriate to real needs and the local context, and supports better and more sustainable post-disaster recovery.

This study discusses the character of Acha in the novel Mariposa by Luluk HF using Sigmund Freud's psychoanalytic approach. Acha is described as a teenager who is persistent in pursuing love, but has a complex inner conflict. This study was conducted because psychological issues, especially in teenagers, are very relevant in modern life. The method used is a qualitative-descriptive approach with Freud's structural analysis of personality, namely id, ego, and superego. In this study, Acha shows the dominance of the id when expressing love impulsively, the ego when adjusting to the bitter reality, and the superego when choosing honesty even though it is painful. The presence of supporting characters also strengthens Acha's psychological dynamics in the story. The results of the study show that Acha's internal conflict is a reflection of the struggle between desire, reality, and morality, and describes the process of maturing teenage characters. This study is expected to provide a deeper understanding of psychological dynamics in literary works and their relevance to the lives of teenagers today.

The purpose of this study is to describe and compare the literary structures of Sindhunata's novel Anak Bajang Menggiring Angin and S. Sularso's Ramayana using an objective-structural approach. The study's focus is on intrinsic factors, specifically themes and penokohan, as well as reflections of the social values of Jawa culture that are present in both karyas. This study uses a kualitatif deskriptif method with the content analysis technique applied to two novel texts as the primary data. The study's findings indicate that both karyas have a common interest in discussing traditional topics such as the relationship between kebaikan and kejahatan, cinta sejati, pengorbanan, and nilai kepemimpinan. However, there are differences in alur kelengkapan, narasi kedalaman, and tokoh penggambaran. Anak Bajang Menggiring Angin presents the Ramayana in a more precise and symbolic manner, while Sularso's version of the story emphasizes the traditional forms of ungkapan and Jawa symbols. The results of this study are presented in a clear and concise manner by comparing two contemporary adaptations of the classic Ramayana story with objective-structural analysis that has not yet been widely discussed. This study aims to shed light on how modern sastra might serve as a local reflection of culture through traditional epik.