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2019 International Conference on Innovation and Technology, ICIT 2019

作者： Rudianto, R. Yudaningtyas, E. Lelono, T.D. Kasitowati, R.D. Marine Science Study Program Faculty of Fisheries and Marine Science Universitas Brawijaya Malang Indonesia Department of Electrical Engineering Faculty of Engineering Universitas Brawijaya Malang Indonesia Fisheries Resource Utilization Study Program Faculty of Fisheries and Marine Science Universitas Brawijaya Malang Indonesia

The amount of waste in Indonesia is estimated to reach 68 million tons in 2019, of which 9.52 million tons is a plastic waste. With this amount, Indonesia is ranked second in the world as the largest producer of plastic waste. One area that suffers from plastic waste is the coastal area. This plastic waste is difficult to decompose and cause environmental problems. Likewise, it happened on the Tambaan coast in Tambaan sub-district, Panggungrejo subdistrict, Pasuruan city. Currently, accumulation of plastic waste is evident throughout the coastal area. The accumulation of scattered plastic waste and its proximity to the residents' settlements has become a hotbed of mosquitoes and caused a pungent smell. The Serving Doctoral program at Universitas Brawijaya offers a solution to process plastic waste into fuel oil such as diesel, kerosene, and premium. The technology used was Muryani's distillation from Wlingi, Blitar Regency. The technology can change certain types of plastic waste to produce fuel. Karang Taruna Bina Hang Tuah was acted as a reliable partner to assist the implementation of the technology on site. This study aims to strengthen the capacity of Karangtaruna in Tambaan Village to be more concerned about the environmental problems of Tambaan beach by processing waste that has been polluted by plastic waste. The results of plastic waste treatment showed that 10 kg of dried plastic waste can be transformed into diesel, premium and kerosene with the efficiency value of 60%, 35%, and 15%, respectively. © Published under licence by IOP Publishing Ltd.

关键词： Distillation

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Dual template using P123-gelatin for synthesized large mesoporous silica for enhanced adsorption of dyes

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South African Journal of Chemical engineering 2023年 43卷 312-326页

作者： Safitri, Widiya Nur Habiddin, Habiddin Ulfa, Maria Trisunaryanti, Wega Bahruji, Hasliza Holilah, Holilah Rohmah, Alya Awinatul Sholeha, Novia Amalia Jalil, Aishah Abdul Santoso, Eko Prasetyoko, Didik Department of Chemistry Faculty of Science and Data Analytics Institut Teknologi Sepuluh Nopember East Java Keputih Sukolilo Surabaya 60111 Indonesia Chemistry Education Study Program Faculty of Teacher Training and Education Universitas Sebelas Maret Jl. Ir. Sutami 36A Surakarta 57126 Indonesia Department of Chemistry Faculty of Science Universitas Gadjah Mada Sekip Utara Sleman Indonesia Centre for Advanced Material and Energy Sciences Universiti Brunei Darussalam Bandar Seri Begawan BE 1410 Brunei Darussalam Research Center for Biomass and Bioproducts National Research and Innovation Agency of Indonesia (BRIN) Cibinong 16911 Indonesia Department of Food Science and Technology Faculty of Agriculture Halu Oleo University Indonesia College of Vocational Studies Bogor Agricultural University (IPB University) Jalan Kumbang No. 14 Bogor 16151 Indonesia Department of Chemical Engineering Faculty of Chemical and Energy Engineering Universiti Teknologi Malaysia 81310 UTM Johor Skudai Johor Bahru Malaysia

Mesoporous Silica with a large mesopore channel was synthesized using the sol-gel method for dye adsorption. A dual template consisting of P123 and gelatin at different ratios was employed in the sol-gel synthesis to enhance surface area and mesopore diameter. Gelatin is a green pore directing agent that strengthens P123 thermal stability during the calcination of silicate gel. Optimization of P123:gelatin ratio to 1:0.02 increased the surface area of mesoporous silica to 561.9 m²/g and expanded the pore diameter to 10 nm. The large pore diameter and surface area enhanced methylene blue adsorption capacity to 363.63 mg/g. The adsorption of methylene blue on mesoporous silica follows the pseudo second-order kinetic and the Langmuir model. Regeneration studies using thermal and chemical treatments exhibited the potential of mesoporous silica as an adsorbent for multiple adsorption-desorption of dyes. © 2022 The Author(s)

关键词： Dual template Dye Gelatin Mesoporous silica Pluronic P123

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Portable Monitoring Systems for Rivers Waste Based on Internet of Things

Portable Monitoring Systems for Rivers Waste Based on Intern...

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International Conference on Informatics and Computing (ICIC)

作者： Henderi Mumammad Hudzaifah Nasrullah Laura Belani Nudiyah Po Abas Sunarya Sofa Sofiana Didik Setiyadi Informatics University of Raharja Tangerang Indonesia Management of Retail Study Program University of Raharja Tangerang Indonesia Informatics Engineering Departement Faculty of Engineering Pamulang University Tangerang Indonesia Infotmatics Faculty of Technolgy and Design Universitas Indonesia Mandiri Jakarta Indonesia

ISBN: (纸本)9798350345728

River pollution has become a severe problem in Indonesia. Industrial waste causes water pollution because the waste is not filtered before being discharged into the river. Illegal waste dumping cannot be prosecuted due to insufficient data and unknown disposal times. Therefore, a tool is needed to measure river water waste to measure polluted water waste data. Studies on river water monitoring devices have shown that there are no portable monitoring tools based on the internet of things for river water waste that follows regulatory standards from the Minister of Health. This study aims to produce a portable monitoring tool based on the internet of things for water waste. The system was developed using TDS sensors, turbidity, pH, MQ-135 sensors, and the system is equipped with a GPS module to indicate the location's latitude. The monitoring system is developed through the stages of system design, testing water samples, setting water quality standards and required hardware and components, setting river water quality parameters, and conducting system testing. The test results show that the system can send the data obtained to dashboard things via an internet connection, the TDS sensor error rate is 2.17%, the pH sensor error rate is 1.87%, the turbidity sensor error rate is 1.66%, the MQ135 sensor value is at the quality limit. The internet of things-based portable river waste monitoring system produced through this research helps related parties to identify and handle polluted rivers. Water according to the standards of the Ministry of Health, and the GPS module shows location measurements and information according to the location's latitude on google maps.

关键词： Error analysis Sensor systems Water pollution Sensors Rivers Pollution measurement Internet of Things

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Geological hazards that occurred on September 28, 2018 in Sirenja sub-district Donggala Regency, Central Sulawesi Province, Indonesia

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AIP Conference Proceedings 2023年第1期2719卷

作者： Abdullah Abdullah Ahmad Imam Abdullah Fitrawati A. Marhum Ajeng Listianti Muslimin Umar Botjing Muhammad Rusli Muhammad Dahlan Th Musa Abdul Rahman I. Kadek Sulendra Sandra Sandra Geophysical Engineering Study Program Tadulako University Palu Indonesia Geological Engineering Study Program Tadulako University Palu Indonesia Physics Study Program Tadulako University Palu Indonesia Civil Engineering Study Program Tadulako University Palu Indonesia

The location of the Mw 7.5 earthquake on September 28, 2018, was in the Sirenja District of Donggala Regency or about 75 km to the north of Palu City. We present this paper to complete information on disaster data in the northern part, especially for the Sirenja area as an epicenter location. The scope of this research is to present the types of geological hazards, including the area coverage that influenced them. Starting with studying the geological conditions of the Sirenja area, then identifying and mapping the types of hazards that occur. Five types of geological hazards hit the Sirenja area at that time, namely due to surface rupture faults, earthquake shocks, liquefaction effects, tidal flood inundation, and tsunami. Thus, September 28, 2018, is a time that marks the Sirenja area is prone to several geological hazards, and at any time or without knowing when a natural disaster like this will occur again. Based on the results of this study, the local government and the people of Sirenja District are expected to immediately relocate and make a risk reduction strategy or action plan, where the information from this paper can contribute to this.

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Thermogravimetric investigation of Reutealis Trisperma (Blanco) airy shaw and iron sand as bed material at different heating rates pyrolysis 2

Thermogravimetric investigation of Reutealis Trisperma (Blan...

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2nd International Conference on Applied Science and Technology - engineering Sciences, iCAST-ES 2019

作者： Rajendra, I.M. Winaya, I.N.S. Ghurri, A. Wirawan, I.K.G. Department of Mechanical Engineering Politeknik Negeri Bali Kampus Bukit Jimbaran Bali Indonesia Study Program of Mechanical Engineering Faculty of Engineering University of Udayana Bali Indonesia

This study observed the effect of bed material in the pyrolysis process. Also, other parameter such as the heating rate have been observed. The biomass studied is Sunan Candlenut cake. This biomass is a potential commodity as a producer of biodiesel. Through the method of mechanical press and esterification, it will leave waste in the form of a cake that still contains crude oil. Trapped oil can be converted into bio-oil through the pyrolysis technique. Parameters that affect the pyrolysis process include the addition of bed material and heating rate. Pyrolysis of this candlenut cake has been tested to determine the amount of activation energy. Heating rates are varied to 5, 10 and 20 K per minute and bed material used is iron sand. The testing instruments uses Thermogravimetric Analysis (TGA). The results show that the lowest activation energy of 15.497 [KJ/mol] is achieved when added iron sand at the heating rate of 10 K per minute. © Published under licence by IOP Publishing Ltd.

关键词： Heating rate

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Environmental health risks and impacts of PM_2.5 exposure on human health in residential areas, Bantul, Yogyakarta, Indonesia

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Toxicology Reports 2025年 14卷 101949页

作者： Abidin, Azham Umar Munawaroh, Anisful Lailil Rosinta, Aulia Sulistiyani, Arvi Tri Ardianta, Iwan Iresha, Fajri Mulya Department of Environmental Engineering Faculty of Civil Engineering and Planning Universitas Islam Indonesia Indonesia Department of Information and Medical Service Vocational School Applied Master's Program in Occupational Health and Safety Universitas Gadjah Mada Indonesia Department of Community Family and Occupational Medicine Faculty of Medicine Khon Kaen University Thailand Faculty of Medicine Universitas Islam Indonesia Indonesia Laboratory of Air Quality Department of Environmental Engineering Universitas Islam Indonesia Indonesia Laboratory of Solid and Hazardous Wastes Department of Environmental Engineering Universitas Islam Indonesia Indonesia

Air pollution, particularly PM2.5, significantly impacts public health in developing areas. This study evaluates PM2.5 exposure among residents and conducts a health risk assessment within the human community in Bantu... 详细信息

Air pollution, particularly PM_2.5, significantly impacts public health in developing areas. This study evaluates PM_2.5 exposure among residents and conducts a health risk assessment within the human community in Bantul Regency, Indonesia, utilizing a high-volume air sampler (HVAS) over 24 h in a residential area and interviewing 36 respondents. The findings of this study show that PM_2.5 concentrations varied from 50.7 to 61.9 μg/m³, exceeding the national ambient air quality standards (NAAQS) of 35 μg/m³. The risk hazard quotient (RQ) values of PM_2.5 were greater than 1, signifying considerable health risk. Epidemiological statistical analysis indicates a significant correlation (p-value < 0.05) between PM_2.5 exposure, health complaints, and respondent characteristics. Residents report health issues including cough, headache, eye irritation, breathlessness, and wheezing. The findings emphasize the imperative for more rigorous air quality standards and regulations, enhanced public awareness and education regarding preventive practices, and urban planning development strategies incorporating green infrastructure. These measures are crucial for alleviating health hazards and enhancing air quality in impacted areas. © 2025 The Authors

关键词： environmental health health impact health risk assessment PM2.5 exposure

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Asymptotically accurate and locking-free finite element implementation of the refined shell theory

arXiv

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arXiv 2025年

作者： Le, Khanh Chau Bui, Hoang-Giang Institute for Advanced Study in Technology Ton Duc Thang University Ho Chi Minh City Viet Nam Faculty of Civil Engineering Ton Duc Thang University Ho Chi Minh City Viet Nam Institute of Material Systems Modeling Helmholtz-Zentrum Hereon Geesthacht Germany

A formulation of the 2D refined shell theory incorporating transverse shear in the rescaled coordinates and angles of rotation is considered. This novel approach provides the first asymptotically accurate and inherently locking-free finite element implementation. Numerical simulations of semi-cylindrical shells demonstrate excellent agreement between the analytical solution, the 2D refined shell theory, and three-dimensional elasticity theory, validating the effectiveness and accuracy of the method. © 2025, CC BY.

关键词： Shells (structures)

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Mangrove leaf extract substitution formulation in making hand soap to improve environmental health of coastal communities, Muara Gembong district

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AIP Conference Proceedings 2024年第1期2982卷

作者： Dwi Atmanto Cosmetology Education Study Program Faculty of Engineering State University of Jakarta Jakarta Indonesia

Hand soap is essential during the COVID-19 pandemic for cleaning hands that are frequently used for activities such as touching the face, eyes, and nose. Hand soap contains mangrove leaf extract (Rhizophora mucronata L.), which contains a substance that weakens bacteria. This study aimed to determine the quality of hand soap production by performing organoleptic tests, pH tests, viscosity tests, and foam height measurements. The data were analyzed using one-way ANOVA with a significance level of 5%. In an experimental research method, four formulas were used. The results were tested by 15 Muara Gembong residents using an organoleptic test. It demonstrates that there are differences in the effect of different percentages of mangrove leaf extract (Rhizophora mucronata L.) on the quality of hand soap, namely organoleptic tests (texture, smell, color, and aroma) with a p-significance < 0.05 (0.008 < 0.05). SNI standards are met by the quality of hand soap as measured by pH (8.27), thickness (2216.25 cPs), and foam height (78.71 mm). Hand soap containing 0.02% mangrove leaf extract (Rhizophora mucronata L.) has a better organoleptic quality, according to Muara Gembong respondents, with an average score of 4.26.

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Model of river environmental management based on sustainable community social capital

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AIP Conference Proceedings 2024年第1期2982卷

作者： Dwi Atmanto Cosmetology Education Study Program Faculty of Engineering State University of Jakarta Jakarta Indonesia

Along the river, many people live. As a result, many people dispose of their household or industrial waste in bodies of water. On the other hand, community groups are concerned about the river's environment. The study will take place along the Ciliwung River. Social capital data includes togetherness, mutual trust, sharing, cooperation, resource mobilization, and the principle of reciprocity. A survey of 30 people who live along the Ciliwung River. The collected data were processed descriptively, and a dynamic system created a model. According to the findings, the community's social capital of the participatory response is high, at 64.17%. 36% is the average level of reciprocity. The percentage of trust is 37%. Aspects of norms (a set of customary or local rules that apply): 58.5% is a high percentage. Aspects of values are 64% high. The statistical testing results in Fcount > Ftable (39.983 > 3,372) show that the percentage composition in each aspect of social capital differs significantly. When the system dynamics model is built with community social capital (citizens, NGOs, and entrepreneurs) and the role of the government, the quality of the river environment can be achieved in 18 years.

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Integration of Artificial Intelligence in Software Defined Networking Technology through Developing Machine Learning Algorithms 3

Integration of Artificial Intelligence in Software Defined N...

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3rd International Conference on Advance Computing and Innovative Technologies in engineering, ICACITE 2023

作者： Naibaho, Lamhot Saxena, Pulkit Raj Sharma, Kuldeep Alfurhood, Badria Sulaiman Pallavi, L. Pant, Bhasker Faculty of Letters and Languages Christian University of Indonesia English Language Education Study Program Indonesia Teer Thanker Mahaveer University College of Computing Science and Information Technology Uttar Pradesh Moradabad India Lovely Professional University Department of Computer Science and Engineering Punjab Jalandhar Phagwara India College of Computer Information Sciences Princess Nourah Bint Abdulrahman University Department of Computer Sciences Saudi Arabia B v Raju Institute of Technology Cse Telangana Narsapur India Graphic Era Deemed to Be University Computer Science & Engineering Uttarakhand Dehradun India

ISBN: (纸本)9798350399264

A future networking design called "software-defined networking"combines network programmability with centralized administration (SDN). Network administration is currently handled by SDN, which, at the regulator, which acts as the cable network processor and divides the data plane into a control plane and a data aircraft. Recent breakthroughs in artificial intelligence (Al) have shown a stronger inclination for the science community to benefit from their ability to give learning capabilities and enhance Indicator. The author of this research provides a comprehensive analysis of initiatives underway to incorporate Al with SDN. The study concluded that the three primary Al thread where scientific research was centered were computer science, conceptual, and fuzzy reasoning systems. The authors of this paper explore the several fields in which these approaches may be used, their potential future applications, and the innovations made possible by the integration of AI-based methods into the SDN paradigm. By choosing the right SDN controller, any large organization may lower network complexity, implementation expenses, and maintenance costs. The focus of this article is software defined networking's benefits and downsides (SDN). Following is a basic explanation of artificial intelligence and a list of some of its most significant applications in SDN. © 2023 IEEE.

关键词： Software defined networking

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