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Pengembangan Model Pembangkit Listrik Tenaga Picohydro Tipe Turbin Cross Flow Head Rendah Gun Gun R Gunadi; Jusafwar; Candra Damis Widiawaty; Machfud Priyo Utomo; Ramdana Ajie Satria; Muhammad Raihan Abimanyu; Adi Syuriadi; Dianta Mustofa Kamal; Rosidi
Infotekmesin Vol 13 No 2 (2022): Infotekmesin: Juli, 2022
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v13i2.1527

Abstract

The provision of food, energy supply, and the provision of information are The food provision, energy supply, and information delivery are controlled to improve people's welfare. In 2011, the national electricity production by PLN was 11% new and renewable energy. 6% hydropower and 5% geothermal. PLN plans the geothermal to be 13% and hydropower to be 6%. The availability of independent PhPP has been built by many communities. PhPP with a waterwheel drive provides a capacity of about 100 watts thus it is only enough for home lighting, whereas the hydro energy potential of the area is quite abundant. The development that has been carried out has several weaknesses; PhPP plump turbine type requires a high head which becomes a constraint for agricultural irrigation, in the other hand PhPP waterwheel type has low efficiency. The research was conducted to develop PhPP low head cross-flow turbine type, which is more efficient. The development begins with the experiment of the PhPP cross-flow turbine model to optimize the ratio of the diameter and width of the runner. A preliminary case study provides experimental results for a cross-flow turbine's torque and power parameters at a flow rate of 0.053 m3/s. Changes in the turbine diameter and width ratio are optimum at a runner width of 10 cm.
The Effect of Corn Husk Waste Addition in Paper Production on Surface Texture and Printability Dianta Mustofa Kamal; Nadiah Tsabitah; Nayla Nazneen
Multicore International Journal of Multidisciplinary (MIJM) Vol. 1 No. 2 (2025): November
Publisher : Marasofi International Media and Publishing (MIMP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64123/mijm.v1.i2.5

Abstract

Indonesia, as an agrarian country with abundant corn production, generates a significant volume of corn husk waste. This study aims to evaluate the effect of corn husk waste addition on the physical characteristics of recycled paper, particularly surface texture and print quality. Corn husk waste was selected due to its high cellulose content and wide availability in Indonesia. The papermaking process involved delignification using NaOH, bleaching with H₂O₂, and blending recycled paper pulp with corn husk fibers. The test results show that corn husk fibers increase paper thickness and tensile strength, while providing a rougher but still functional surface texture. Printing tests indicated that ink absorption remained adequate, although minor spreading was observed in rougher areas. Overall, the resulting paper has potential as an eco-friendly alternative for simple applications such as handicrafts and non-commercial printing.
ANALISIS PENGARUH MEDAN MAGNET TERHADAP UKURAN ATOMISASI BAHAN BAKAR CAMPURAN GASOLINE DAN BIOETANOL Nufus, Tatun Hayatun; Dianta Mustofa Kamal; Gun Gun R Gunadi; Candra Damis Widiawati; Asep Apriana; Muhammad Todaro
Jurnal Rekayasa Mesin Vol. 15 No. 2 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i2.1398

Abstract

The atomization process plays a very important role because the success or failure of combustion in the combustion chamber is influenced by the size of the liquid fuel mist. The occurrence of good atomization from atomized is determined by the size of the fuel droplets and the size of the nozzle diameter. Reducing the droplet diameter can increase the velocity, which can affect the Reynolds number and cause turbulence effects. The effect of turbulence provides a vortex effect, which enhances the heat transfer process between hot air and fuel particles in the combustion chamber. In this research, the effect of fuel magnetization on droplet size is analyzed. The fuel used is E0, E10, E20, E30, and E100, all types of fuel are channeled through an electromagnetic field of 1500 Gauss. Next, the particle size was tested using a Particle Size Analyzer, Bettersize BeNano 90 Zeta. The result was a decrease in particle size of 8-27%. The particle size measured using the PSA (particle size analysis) tool and theoretical calculations is <10% different. Each tool has an accuracy limit for PSA with a maximum accuracy of around 5%. These results provide initial information that the fuel magnetization process can improve engine performance.
Implementasi Merdeka Belajar dalam Peningkatan Literasi dan Numerasi Siswa Shobri, Ach.; Masrukin; Sabri; Dianta Mustofa Kamal
Indo-MathEdu Intellectuals Journal Vol. 4 No. 3 (2023): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v4i3.1568

Abstract

This study evaluates the effectiveness of the "Merdeka Belajar" program launched by the Indonesian Ministry of Education and Culture in improving students' literacy and numeracy. A quantitative method with a quasi-experimental design was used to compare literacy and numeracy scores before and after program implementation in 10 senior high schools in East Java Province, with a total of 100 students as samples. The results showed significant improvements in literacy scores from 62.5 to 75.3 and numeracy scores from 58.7 to 72.1, with a p-value <0.01. Success factors included teachers' freedom in choosing teaching methods, principals' support and parents' involvement. However, challenges such as resource inequality between urban and rural schools and resistance to change remain. Recommendations for education policy include improving access and quality of education resources as well as continuous training for teachers and principals to ensure the sustainability and success of this program
Literature Review: Comparison of Glossy and Matte Lamination on Posters to Enhance Visual Appeal Rafa Ayu, Nur Aini; Dianta Mustofa Kamal
Multicore International Journal of Multidisciplinary (MIJM) Vol. 2 No. 1 (2026): May
Publisher : Marasofi International Media and Publishing (MIMP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64123/mijm.v2.i1.4

Abstract

Posters remain a strategic medium in visual communication due to their ability to attract attention quickly and convey information efficiently in public spaces. Beyond graphic design elements such as layout, typography, and imagery, surface finishing plays a critical role in shaping visual perception, readability, and audience response. Among the most widely used finishing techniques, glossy and matte (doff) lamination exhibit distinct optical, psychological, and functional characteristics that directly influence communication effectiveness. This study aims to comparatively review glossy and matte lamination applied to posters through a narrative literature review approach. Peer-reviewed journal articles, conference proceedings, and authoritative books indexed in reputable databases including Scopus, Web of Science, IEEE Xplore, ScienceDirect, SpringerLink, and Google Scholar were systematically collected. A total of 42 relevant publications published between 2013 and 2023 were selected and thematically synthesized. The review reveals that glossy lamination enhances color vibrancy and contrast through specular reflection, thereby increasing immediate visual attraction, but often introduces glare that compromises readability and visual comfort. In contrast, matte lamination provides superior readability and reduced visual fatigue under diverse lighting conditions, conveying a professional and elegant impression, although with slightly reduced color saturation. The findings highlight that lamination selection is not absolute but context-dependent, influenced by message objectives, target audience characteristics, and installation environment. This review also identifies significant research gaps, particularly in neuro-cognitive audience response measurement, long-term durability under tropical environmental conditions, and cross-cultural perception of surface finishes. Based on these gaps, a structured research roadmap is proposed. The study contributes an evidence-based framework to support designers, printing practitioners, and visual communication scholars in making informed finishing decisions.
Green Manufacturing in the Printing Industry: Research Trends, Implementation Challenges, and a Future Roadmap Rindi Antika Jubaedah; Dianta Mustofa Kamal
International Journal of Science and Society (IJSS) Vol. 2 No. 1 (2026): June
Publisher : Marasofi International Media and Publishing (MIMP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64123/ijss.v2.i1.1

Abstract

The printing industry plays a vital role in communication, education, and the creative economy, yet it is also associated with considerable environmental impacts due to high energy consumption, reliance on petroleum-based raw materials, intensive water use, and significant waste generation. In response to increasing societal pressure, regulatory demands, and sustainability-oriented market expectations, Green Manufacturing has emerged as a critical paradigm to reduce the ecological footprint of the printing sector while maintaining its economic and social functions. This study aims to systematically review the existing body of knowledge on Green Manufacturing in the printing industry by identifying dominant research trends, examining key implementation challenges, and proposing a future-oriented research and policy roadmap. A Systematic Literature Review (SLR) was conducted following PRISMA guidelines, synthesizing 35 peer-reviewed international journal articles published between 2014 and 2024 and indexed in major scientific databases. The findings reveal three dominant research streams: (1) innovation in sustainable raw materials, including plant-based inks and recycled or bio-based substrates; (2) process and energy efficiency improvements through digital printing technologies and waterless printing systems; and (3) the adoption of circular economy principles for waste reduction and resource recovery. Despite technological progress, implementation remains constrained by high initial investment costs, technical performance gaps of green materials, fragmented sustainability standards, and limited awareness among consumers and small and medium-sized enterprises (SMEs). Based on identified gaps, this paper proposes a future roadmap emphasizing locally sourced eco-materials, integration of AI and IoT for process optimization, development of globally harmonized sustainability standards, and circular economy–driven business models. By positioning Green Manufacturing as a socio-technical transformation rather than a purely technological shift, this study contributes strategic insights for researchers, industry practitioners, and policymakers seeking to accelerate a sustainable transition in the printing industry.