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Analysis of Rainfall Characteristics using Hydrognomon v.4.0 in Karangploso, Malang Triawati, Indri; Ali, Atif Muhammad; Palupi, Retno; Richard, Hendrik; Hariadi, Agung; Mahmud, Mahmud; Pratama, Raditya; Habiburrahman , Novan
⁠International Journal of Sustainable Social Culture, Science Technology, Management, and Law Humanities Vol. 1 No. 2 (2024)
Publisher : Universitas Kristen Cipta Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71131/887gae84

Abstract

Rainfall is hydrology event that occurred seasonal in every year. There are two seasons occurred in Indonesia, dry season and rainy season. The analysis of rainfall characteristics plays a significant role to predict the rainfall occurrence and probability of flash flood. In this paper, rainfall analysis using Hydrognomon v.4.0 will provide hydrology data information, such as rainfall intensity and time series. The highest maximum rainfall of 526 mm (in 2010) has a return period of about 11 years. This means that rainfall of this magnitude can be expected to occur once every 11 years. The maximum rainfall of 425 mm (2013) has a return period of about 5.5 years, indicating a more frequent occurrence than the highest rainfall. Thus, it makes data trend rainfall with higher values tends to have longer return periods, indicating infrequent intensity. However, rainfall with lower intensity tends to have shorter return periods and occurring more frequently.
A Literature Review on the Integration of Plant Anatomical Principles in the Optimization of Vertical-Axis Wind Turbine Blade Design Habiburahman, Novan Habiburrahman; Priyanti, Novy Ary; Hariadi, Agung; Muttaqin, M. Zainul
⁠International Journal of Sustainable Social Culture, Science Technology, Management, and Law Humanities Vol. 2 No. 1 (2025)
Publisher : Universitas Kristen Cipta Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71131/cj3be180

Abstract

The development of renewable energy technologies increasingly demands innovative, efficient, and environmentally friendly designs. Vertical Axis Wind Turbines (VAWT) are among the promising energy conversion systems suitable for urban and marine applications. However, aerodynamic efficiency and environmental adaptability remain key challenges. In contrast, the anatomical structures of plants particularly leaves and stems have naturally evolved to optimize interactions with airflow and sunlight, making them a rich source of inspiration for technological innovation. This article presents an interdisciplinary literature review exploring how principles of plant anatomy can be integrated into VAWT blade design to enhance aerodynamic performance and energy conversion efficiency. Through a comprehensive analysis of literature from mechanical engineering and plant biology, this study identifies key anatomical features such as surface curvature, venation patterns, and epidermal textures as having direct relevance to drag reduction, turbulent flow regulation, and lift enhancement. This review aims to open new directions for bioinspired design approaches in wind turbine development and strengthen the collaboration between engineering and biological sciences in advancing sustainable energy technologies.