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All Journal Journal of Degraded and Mining Lands Management Andalasian International Journal of Applied Science, Engineering, and Technology
Usman, Fathoni
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering Mechanical Engineering

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Impact of land use conservation of swampy lowland urban areas on people's awareness and perception Yusuf, Maulana; Damiri, Nurhayati; Saptawan, Ardiyan; Aslamiah, Nur; Usman, Fathoni; Affandi, Ahmad; Rahim, Supli E; Yunardy, Syafrul
Journal of Degraded and Mining Lands Management Vol. 12 No. 3 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.123.7483

Abstract

This study investigated how changes in land use impact people's knowledge and perceptions, notably the transformation of wetlands into residential and industrial sectors in urban low-lying areas. This transformation's accelerating urbanization is a worldwide phenomenon fueled by infrastructural growth and urban growth. This study was carried out using a mixed-methods approach that includes surveys, interviews, and spatial analysis. This research showed a complicated link between a change in land use and how people perceive it. First, turning low-lying swamps into cities frequently changes the hydrological dynamics, raising the risk of floods and other water-related risks. As a result, people who live in transformed areas tend to develop more conscious of these environmental dangers. However, this increased awareness may not always result in proactive mitigating actions due to resource shortages and poor urban planning. Second, socio-economic position and proximity to redeveloped regions affect how locals view urban growth. While some regard land use conversion adversely owing to habitat loss and potential health hazards related to pollution and sanitation difficulties, others see it as a chance for economic expansion and improved infrastructure. Lastly, minimizing the negative effects of land use shifts depends on efficient urban planning and community involvement. People's perceptions are more likely to be positive when they participate in decision-making processes and access information and resources, increasing engagement in sustainable urban development activities.
The Slippage of Bolts on Axial Compression Capacity of Equal Angle Section’s Bolt Connection Usman, Fathoni; Devi, Debby Sinta
Andalasian International Journal of Applied Science, Engineering and Technology Vol. 5 No. 3 (2025): November 2025
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijaset.v5i3.267

Abstract

Steel angles play a vital role in energy infrastructure, especially in latticed transmission towers where they act as axial compression members. Their structural performance is strongly influenced by end restraints, bolt configurations, and slenderness ratios, which affect buckling behavior and compression strength. This study examines how the number and arrangement of bolts, along with slenderness variations, impact the displacement and stress response of steel angles under compression using nonlinear analysis and finite element modeling. The investigation highlights that different bolt patterns and slenderness ratios significantly alter the stability and load-bearing capacity of the members. Single-row bolt configurations tend to experience greater slippage compared to multi-row setups, indicating the importance of connection design in preventing premature failures. Overall, the findings emphasize the need for optimized bolt arrangements and slenderness control to enhance resistance to buckling and improve the overall efficiency and reliability of energy infrastructure systems under axial compression loads.
Co-Authors Adiguna Adiguna, Adiguna Ahmad Affandi Amiwarti, Amiwarti Ardiyan Saptawan Aslamiah, Nur Devi, Debby Sinta Herri Purwanto Maulana Yusuf Muhammad Firdaus Nurhayati Damiri Rahim, Supli E Reffanda Kurniawan, Reffanda Setiobudi, Agus Syafrul Yunardy Syahril Alzahri, Syahril