bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessment of Floating Photovoltaic (FPV) Systems as an Alternative Electricity Generation Source: A Case Study from Sudan
Authors: Kassem Y , Çamur H , Abdalla MA H A 
Published: December 2023

Abstract
The deployment of large-scale photovoltaic (PV) systems has gained global attention due to technological advancements and cost reductions. Floating PV (FPV) is becoming a preferred alternative, offering efficiency and environmental benefits. It can be installed on dams lakes and reservoirs, generating clean energy without competing for land use. Despite the promising prospects of floating PV, there has been a lack of analysis on its implementation in Sudan. To fill this gap, the present study delves into the feasibility and potentiality of FPV at Merowe Dam and Khashm El Girba Dam in Sudan, providing crucial insights for the first time. The developed systems were evaluated using PVsyst. The results show that investing in FPV systems on dam reservoirs significantly improves power system reliability while generating additional clean energy, meeting the rising demand, and reducing carbon emissions. This highlights the potential of FPV systems as a promising solution for sustainable energy growth, mitigating environmental concerns, and ensuring a greener future.
Post-occupancy evaluation of thermal comfort at studio classroom in hot and humid climate
Authors: Smitha K D , Khairunnisa G , Rahmasari K , Dewi O C 
Published: December 2023

Abstract
Thermal comfort is crucial in providing a productive learning environment, especially in the design studio classroom with a longer lecture duration (09.00-15.00). This study aims to investigate the thermal performance ability to provide thermal comfort for its users in a design studio classroom at Universitas Indonesia, Depok. Ninety-one students (20% Male, 80% Woman) aged 19-22 years old were surveyed about their thermal perspective by using TSV, TP, HSV, HP, metabolic rate (MET), and clothing insulation (clo). Field measurement recorded humidity and temperature conditions over two lecture periods. The indoor operative temperature for periods A and B was 27.28°C and 26.78°C, respectively, with TSV values in both periods within the comfort temperature range (mean: (A) -0.30, (B) -0.58). However, TP values suggest that the users prefer a slightly cooler condition with values of -1.53 and -1.12, respectively, for Periods A and B. The results show that studio classrooms can perform thermally well even though some users prefer slightly cooler temperatures. This study scored the necessity of understanding both subjective and objective aspects of thermal comfort to create an optimal learning environment. Findings suggest that further study should consider variations in individual preferences and the influence of external environmental factors.
Policy analysis of electric vehicle infrastructure supporting sustainable energy use
Authors: Wiratmoko A , Apriyanto H , Tamtomo T D , Alkadri  , Suripto  , Soewargono B D , Dwiananto Y I , Suhendra A 
Published: December 2023

Abstract
The Presidential Regulation of the Republic of Indonesia 55 of 2019 concerning the Acceleration of the Battery-Based Electric Vehicle (EV) Program for transportation aims to provide direction, foundation, and legal certainty in the implementation of the acceleration of the battery-based electric motor vehicle program in Indonesia, one of which is the strategy of providing electric charging infrastructure. This policy had not fully significant impact on the provision of electric vehicle charging infrastructure, wherein 2021, the provision of EV charging facilities has reached approximately only 74 charging facilities, spread across 188 locations; this condition is still far from the target set by the government, expected about 168 charging facilities units in 2021-2031. The research evaluates existing policies as a reference for preparing policy recommendations to accelerate the provision of EV charging infrastructure. Research has shown that the adoption of electric vehicles is constrained, one of which is the need for more charging station availability of charging stations and their distribution. The government needs to provide incentives for domestic manufacturers of charging stations and battery swapping stations and instruct state-owned enterprises to accelerate the adoption of electric to provide charging station infrastructure.
Green energy powered autonomous IoT catfish feeder prototype based on Arduino Mega and ESP-8266
Authors: Saipul  , Puriza M Y , Asmar  , Rachmani A A , Satria H , Anzari Y , Yandi W 
Published: December 2023

Abstract
Catfish is a freshwater fish commodity which is easy to cultivate but has cannibalistic nature. There are 3 phases of catfish cultivation: fingerling, rearing, and fattening. The fattening phase is a stage of nursery to produce catfish according its size to be consumed. During this stage, it’s vital to regularly feed the fish at morning (7 am), noon (1 pm), and evening (5 pm) and monitor water quality so catfish farmers are helped. This tool implements Arduino Mega, ESP-8266, 20 WP solar panel, 755 80W DC motor, servo motor, ultrasonic sensor, fish food container, and DS3231 RTC. This research has 3 scenarios: scenario 1: food given sparingly twice/day, scenario 2: the IoT fish feeder automatically supply food thrice/day at morning (7 am), noon (1 pm), and evening (5 pm). scenario 3: food provided extravagantly twice/day. This research resulted an autonomous IoT fish feeder It is proven that scenario 2 has satisfactory results, fish growth is better 33.3% when compared to scenario 1 and is relatively the same as fish growth in scenario 3. Meanwhile, the amount of food spent is 25% from scenario 3. The level of turbidity is also better at 37.5% compared to scenario 3.
Product category rules development as a reference for PROPER life cycle assessment reporting: recommendations
Authors: Nadirah  , Susila I M A D , Sihombing A L , Yanuar A I , Febijanto I , Rosmeika  , Santoso A D , Kurniawati I Z , Kadir E S , Ghazali N , Suryana Y 
Published: December 2023

Abstract
The Ministry of Environment and Forestry (MOEF) issued regulations regarding monitoring of company environmental performance (PROPER), which required companies to conduct LCA studies for their products to obtain a green or gold rating. The LCA report submitted in the PROPER program should refer to the specified guiding standards, namely Product Category Rules, which contain the necessary elements of product environmental footprint (PEF) for assessing environmental management performance evaluations to meet international standards and ensure acceptance by the international community. This study aims to evaluate and analyze industries that have received green and gold ratings in the 2022 PROPER program and whether their LCA arrangement refers to certain PCRs contained in the international program operators. MOEF and MOI (Ministry of Industry) will use the evaluation and analysis results as a suggestion to build PCR for priority industries. Seven industrial sectors already have PCR as the basis of the LCA study. Additionally, three product categories require establishing PCR as a criterion for LCA.
Comparative assessment of the environmental impact of nuclear power plant technology using life cycle assessment approach: A review
Authors: Pratiwi S A , Nasruddin  , Sasongko N A 
Published: December 2023

Abstract
Nuclear power plants (NPP) are being considered as an alternative energy that could reducing greenhouse gas emissions. However, there are various challenges that need to be addressed regarding the variation of current nuclear technology such as environmental impact issues. To ensure the sustainability and effectiveness of nuclear power plants technology, a Life Cycle Assessment (LCA) approach can be used to study the environmental impacts of the nuclear power plant. LCA is a method for evaluating the environmental impact of a product or process from start to finish. By conducting a preliminary LCA study of each Nuclear Power Plant technologies, the environmental impacts of the stages of construction, operation, and management of radioactive waste can be understood. This study can also help compare the environmental impacts of nuclear power plants with other energy technologies. This preliminary study will review the environmental impact from pressurized water reactor, boiling water reactor, molten salt reactor, and compare with conventional coal power plant to provide compact summary of the technology. The results of the LCA study can help identify areas that require more attention in the development of nuclear power plants in Indonesia.
Analysis of green industry certification implementation on eco-friendly industries in Indonesia
Authors: Aditiyawan  , Pratiwi A I , Sari C K , Ayuningtyas U , Sani A W , Soraya D F , Febriansyah H , Septiani M , Wardani M L D , Hipi M A , Andriyani N 
Published: December 2023

Abstract
Climate change has made many countries aware of the importance of controlling greenhouse gas emissions. This awareness has encouraged many countries concerned about environmental issues to ratify the Paris Agreement, including Indonesia. This research was conducted based on a literature study on how the government realizes support for environmental sustainability in implementing its industrial development to achieve sustainable development goals (SDGs). The study results show that the government has assigned 2 of its state institutions, namely the Ministry of Environment and Forestry to handle the certification of products that meet environmentally friendly standards by providing eco-labels. The Ministry of Industry handles certification of industries that meet environmentally friendly standards in the process and supply chain of their products by awarding Green Industry Certificates. The Ministry of Industry has set 34 green industry standards and appointed 15 green certification bodies. However, the awareness of the industry world to participate in this program is still lacking because there are only 67 industries that have certified themselves as green industries.
Utilization of Fish Bone Waste as a Substitution of Cement in Concrete
Authors: Pratiwi S H , Gunawan I , Sandy B D A 
Published: December 2023

Abstract
This study aims to determine the effect of using fish bone powder as a substitute for cement and its effect on concrete compressive strength and concrete porosity. Tests for compressive strength of concrete and porosity of concrete were carried out at the age of 28 days using variations of fishbone powder 5%, 10%, 15%, and 20%. The results of testing the compressive strength of concrete at the age of 28 consecutive days were 21,991 MPa, 16,220 MPa, 17,524 MPa, and 12,923 MPa. The largest concrete compressive strength value obtained was a variation of 5% fish bone powder, whereas the porosity values of concrete at 28 days were 11,164%, 12,429%, 11,545%, and 12,764%. Utilization of fish bone waste as a cement substitution can be done in a 5% mixture of fish bone waste. The resulting concrete compressive strength and porosity values are as planned.
Utilization Analysis of Solar Cells as an Energy Source to Supply Oxygen at the Military Hospital of dr. Asmir Salatiga
Authors: Soekarno G R , Sundari S , Rahmawati F , Nugroho A D 
Published: December 2023

Abstract
Hospitals are institutions that require a large and continuous supply of energy to run their operations. Using of intensive energy can have a significant impact on the environment and the use of limited natural resources. In this context, the Oxygen Generator System (OGS) is an important system for hospitals because it requires a continuous supply of energy for 24 hours. This article aims to analyze the potential of utilizing solar energy as an alternative energy source to supply oxygen at dr. Asmir Salatiga. In this study, using a descriptive qualitative method with a case study approach. Hospital of dr. Asmir Salatiga has utilized solar cells to generate its own electricity and support the operation of oxygen generators. Oxygen production data shows a significant increase after switching to solar energy supply. The use of solar energy helps reduce greenhouse gas emissions and contributes to climate change mitigation efforts.
Improved management of waste management by non-governmental groups (KSM) in post-pandemic sustainable waste management in Bogor City
Authors: Suhandojo  , Askinatin M , Tamtomo T D , Wasil A A , Soewargono B D , Heldini N , Widyani A F 
Published: December 2023

Abstract
The post-pandemic waste generation problem in Bogor City continues to increase. The waste managed in 2022 reached 96.25% of the total waste. It can manage and reduce as much as 21.52% of generation while the rest are disposed to landfill. Most of the waste reduction was carried out through recycling activities (20.78%), composting (13.36%), TPS3R (temporary reuse, reduce, recycle sites) (5.36%), and waste banks (2,06%). There are 29 TPS3R units, 26 of which are managed by self-help groups (KSM) and the rest by the government. KSMs have an important and dominant role in managing TPS3R, even though they only serve around 5.4% of households. The limitations of landfills demand that waste be reduced at the household level. Proper management of TPS3R by KSM can increase the reduction of waste generation. This study aims to formulate policy recommendations for improving KSM management in waste management and increasing income from waste processing. A GAP analysis used the primary and secondary data from 2022. The results show that it is necessary to improve KSM management, increase the number of KSM and continue the Bogor City Government coaching program to improve KSM’s income.
A simplified approach to hydraulic model calibration using HEC-RAS for water quality simulation Ciujung river
Authors: Rinjani R R , Nugroho E O , Cahyono  , Kuntoro A A , Adityawan M B , Nurkhaerani F 
Published: December 2023

Abstract
One approach to identifying the pollution load released by the industry quickly and accurately is to create a model taken from a reliable database. HEC-RAS was used in generating the Ciujung River water quality database to be used in simulating various scenarios in modeling water quality projections. In fact, the measurement data sometimes gives a misleading interpretation for understanding the relationship between hydraulics and water quality. Therefore, a simple approach to calibrating the hydraulic data is then developed. The effort to achieve mass conservation philosophy is taken into account in this research, such as bed elevation correlation, boundary condition adjustment downstream and upstream, Manning correction, and justification of flow events according to the limitations of measurement data. The result shows that the proposed simple approach in this research gives a value of coefficient correlation 0,9, at which mass conservation is achieved.
Sustainable plastic packaging waste management strategy based on a circular economy
Authors: Anwar M A , Sasongko N A , Suprihatin  , Najib M 
Published: December 2023

Abstract
Indonesia’s waste volume produced 71 thousand tons in 2022 and reached 26 million tonnes/year. Waste plastic is in second position at 18.37%. With a growth rate of 5%, the worldwide packaged food market is valued at 1.9 trillion in 2020 and is expected to reach 3.4 trillion by 2030. The growth of the packaging industry is predicted to grow by 6% - 8% annually, with the most considerable contribution from flexible plastic packaging, paperboard packaging and rigid plastic packaging. The potential of this packaging makes manufacturers confident in producing because of the rapid growth of the digital market, which makes product mobility even higher. From an economic and durability point of view, this type of packaging makes it a better choice. Flexible plastic packaging was the most produced of the total packaging products (46.73%). The goal of this study is based on a review of literature, analysis of data, and demonstration research, and it is necessary to collect and analyse a large amount of data to develop further accuracy in managing waste plastic in a circular economy to minimise waste generation and improve the environment with an interpretative structural modelling (ISM).
Unveiling the close relationship between Betta burdigala and Betta uberis through DNA barcoding based on COI Gene
Authors: Valen F S , Bidayani E. , Alfian R A. , Prananda M , Notonegoro H , Susilo N B , Ardi W D , Swarlanda  , Aziz M A , Puryoso  , Widodo M S , Faqih A R , Hasan V 
Published: December 2023

Abstract
A Wild Betta burdigala is only known from Bangka Island, while a Wild Betta uberis resides in Kalimantan Tengah and Kalimantan Barat in Indonesia. Both species share numerous physical characteristics, particularly in the meristic count, body color, and specific habitat. In this study, we estimate the degree of similarity between Betta burdigala and Betta uberis using DNA barcoding based on the Cytochrome Oxidase Sub Unit I (COI) gene. The COI gene is a unique and small gene which found in mitochondrial DNA and is used in the DNA barcoding approach to identify species. This approach allows for the analysis of species similarities and the learning of the evolutionary histories of those species. Based on the COI gene, Betta burdigala and Betta uberis have a close genetic distance and a DNA similarity of 96.66%, much higher than other bettas. They differ by eight nucleotide bases, and their genetic distance is 0.04, while a genetic distance between 0.010 and 0.099 is considered to be low and indicative of high similarity. According to the phylogenetic tree, these species are descended from a single, closely related ancestor on the same branch. Based on the COI gene, we assume that they are identical. Additionally, we advise conducting additional research using the mitochondrial DNA complex and in-depth morphological examination to confirm the accuracy of the study’s findings.
A study of the microclimate effects on thermal comfort in warm-humid climate for urban parks, Pangkalpinang
Authors: Rahmadyani H , Fahri M 
Published: December 2023

Abstract
Nowadays, Urbanization is increasing rapidly in downtown. The increasing phenomenon of urbanization undoubtedly requires special attention, as it significantly influences numerous public health challenges and environmental problems, including the urban heat island effect, flooding, and pollution. Efficient urban planning strategies are vital for mitigating the detrimental effects on the climate, while simultaneously improving the overall quality of life and public health in urban areas. However, the effect of microclimate on urban parks in Pangkalpinang related to thermal comfort has never been studied. This paper studies the microclimate effect on thermal comfort for urban parks in Pangkalpinang. Simulation models will be formulated using ENVI-met. This study focus on investigate the thermal comfort quality of urban parks in Pangkalpinang. Additionally, it seeks to identify the key factors influencing thermal comfort in urban parks, serving as an initial step towards mitigating the urban heat island phenomenon. The result shows that Potential air temperature and mean radiant temperature are the most significant factors affecting the quality of thermal comfort.
Study of the correlation between road connectivity values towards walkability on Jendral Sudirman Street, Pangkalpinang using the space syntax method
Authors: Fahri Muhammad , Rahmadyani Helfa 
Published: December 2023

Abstract
Pedestrian paths are an important aspect of urban planning as a basic human activity in terms of smoothness, safety and comfort. Road network connectivity and integration including those affecting pedestrian volume. In this measurement can be done with the space syntax method. Diagrammatic configuration through the space syntax method effectively characterizes the connectivity and integration of spaces, hinging on three fundamental spatial concepts, one of which is axial space. This study aims to examine the correlation of road connectivity to pedestrian interest (walkability). With the space syntax method, plan analysis and evaluation can be done before the implementation of the design. The area Jendral Sudirman street was chosen as a case study. This research employs quantitative methods within the frameworks of descriptive analysis and simulation. Descriptive analysis here aims to explain the findings of field data and numerical data accurately and systematically. Result shows that the value of connectivity and integration can affect pedestrian interest. With the application of pedestrian facilities on roads with high connectivity and integration values, it will increase walkability.
Utilization of River Sand as a Substitution and Addition of Cement to Increase The Shear Strength of Clay Soil
Authors: Risva G F , Apriyanti Y , Sandy B D A 
Published: December 2023

Abstract
Clay soil is categorized as a poor subgrade material because it has a low soil bearing capacity. One of the parameters in terms of soil bearing capacity is the value of soil shear strength. To improve it, natural resources can be used by utilizing river sand as a substitute for clay and adding cement as a binder for clay granules with river sand. Mixture variations used for river sand are 10%, 15% and 20% as a substitute for clay and cement of 5% of the dry weight of clay and sand. The soil tested came from clay in the Parit Tujuh area, Pemali District and river sand taken by small rivers from the Air Bakung River, Lubuk Kelik River, and Penyamun River in Bangka Regency, Bangka Belitung Islands Province, Indonesia. The test carried out is direct shear testing. The test standard uses the Indonesian National Standard (SNI). From the results of the study it was found that the shear strength of the soil increased with the increase in the percentage of river sand and 5% cement compared to unmixed clay, namely 113.302 kN/m2 at 20% variation of Sungai Penyamun Sand plus 5% cement.
Superabsorbent Hydrogel from Cassava Waste Pulp – Acrylamide – Acrylic Acid to Increase Water Holding Capacity in Sandy Soils
Authors: Puspita I , Kurniati M , Winarti C , Maddu A 
Published: December 2023

Abstract
In this investigation, a superabsorbent hydrogel was produced from cassava waste pulp (CWP) and acrylic acid (AA) – acrylamide (AAm) in a ratio of 2:1.5:1 (CWP:AA:AAm) by grafting and crosslinking methods. The grafting procedure is initiated with ammonium persulfate (APS) at a concentration of 1%. In this study, cross-linked structures were produced using several concentrations of methylene bisacrylamide (MBA) (0%, 0.5%, 1%, and 1.5%). The impact of MBA concentration on the properties of the superabsorbent hydrogel was observed. The parameters investigated in this study included the equilibrium degree of swelling (EDS), grafting degree, gel fraction, and swelling kinetics (comprising the swelling exponent, swelling constant, and diffusion coefficient). Following this, the hydrogels were sprinkled into sandy soil with the purpose of examining the effects of hydrogel incorporation on the soil’s water holding capacity. The sample with a concentration of 0.5% MBA yielded the highest EDS at 9178% (g/g), as determined by the results. The gel fraction value obtained for the sample was 81.04% (g/g) and the crosslink density of this sample was measured to be 2.78 × 1023 m-3, while the maximal water holding capacity was found to be 54.16%.