bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on the development of the agricultural sector of the Northern zone: repair and maintenance of machines
Authors: Kokieva G E , Druzyanova V P , Grigoriev S I 
Published: March 2022

Abstract
The use of complex and expensive equipment in agricultural production has significantly increased the requirements for the quality and timing of full performance of all the operations for its maintenance and storage. Nowadays the technical policy in the agro-industrial complex consists in the implementation of prompt and promising measures to satisfy agricultural producers and processors with high-quality, environmentally friendly and safe equipment, its efficient operation, a high level of mechanization and automation of labor, as well as the creation of a market for technical means and services. At the same time, a complex of measures that would consider both tactical and strategic situations in the context of the economic crisis is very important. In all cases, its starting point should be machine technology for the production of agricultural products and their processing, taking into account the peculiarities of the natural and climatic zones of the country. This is explained by many reasons, one of which is a decrease in the technical potential of village: the composition of machine and tractor fleet is decreasing and the physical and intellectual wear of equipment is progressing. According to the standard technology, the standards were created for labor costs for the repair of machines, standards for the consumption of materials required for repairs and rates for the use of spare parts. The practice of mass introduction of standard technology and norms has confirmed their high efficiency. The economic feasibility of restoring parts is usually assessed by the comparison of the cost of a new part and the cost of repairing a worn one. However, this does not take into account the difference in the service life of new and reworked parts and the additional costs associated with this.
The Effect of Retrofitted Refrigerant and Environmental Temperature on the Performance of Air Conditioner: An Experimental Study
Authors: Nugroho A. , Nurkholis A. , Maulana R. A. , Priangkoso T. 
Published: March 2022

Abstract
There are several factors that influence the efforts to increase the performance of an air conditioner (AC), one of which is the selection of working fluid, environmental condition, and device components. Refrigerant is the most vital substance which determines the efficiency of the cooling machine. In addition, ambient air temperature and humidity are other important factors that affect the performance of the cooling machine. Therefore, it is extremely crucial to calculate the environmental condition, which is the air temperature, so that the cooling machine can work optimally. Currently, the refrigeration system uses R-22 refrigerant. However, the use of R-22 has a high ODP (ozone depletion potential) value, thus having a risk of damaging the ozone layer. As a safer alternative, the use of hydrocarbon refrigerants, such as R134a and R290, can solve this problem as they do not have any ODP. This study was conducted by retrofitting the synthetic refrigerant in Air Conditioner (AC) 1 HP with various types of hydrocarbon refrigerant. The outside air temperatures used were 30°C, 50°C, 60°C, and 70°C, while the airflow velocity across the condenser also varied, namely 4.8 m/s, 5.8 m. /s, 6 m/s, and 6.6 m/s. From the results of this study, it is known that retrofitting synthetic refrigerants into hydrocarbon refrigerants can increase the coefficient of performance (COP) of the air conditioner. The uses of R134a and R290 hydrocarbon refrigerants increase the COP by 19% and 24.5%, respectively. In addition, lower ambient temperature will reduce the required electrical power. R290 Refrigerant has the best COP value compared to R22 and R134a.
Integration of Variable Renewable Energy, Electric Vehicle, and Smart Microgrid in ASEAN: A Focus Group Discussion Approach
Authors: Bong Cassendra P C , Hashim Haslenda , Ho Wai Shin , Muis Zarina Binti Ab , Yunus Nor Alafiza Binti , Demoral Alnie , Tirta Andy , Rizki Kresnawan M , Safrina Rika , Rosalia Silvira Ayu 
Published: March 2022

Abstract
Southeast Asia is expecting rapid growth in energy and vehicle demand. Variable renewable energy such as solar and wind have high potential in the region. ASEAN aims to increase the renewable energy share in power capacity to 35% 2025. The increase in renewable energy share can drive a shift in the current energy management system. The adoption of electric vehicles can bridge the link between the energy and vehicle sectors towards a green transformation. Electric vehicles that are powered by electricity from renewable sources creates demand by consuming energy from the grid, but it can also serve as battery storage that can discharge energy back to the grid if needed. It is known that the intermittent nature and high penetration of variable renewable energy can lead to power instability. However, microgrids can be designed and incorporated with electric vehicles and variable renewable energy deployments to enhance the reliability and stability of the power system. The engagement with key stakeholders related to the deployment of the platform for the use of these three technologies is crucial to gain better insight on the market status, including the current and future price and penetration trends, and deployment opportunities and barriers. A focus group discussion involving related stakeholders on the aspects of policies and targets, technology readiness, and implementation strategies, was thus conducted. The results showed that there have been concrete policies on the renewable energy installation targets among the countries. Electric vehicles penetration is also an existing priority with different countries having varying targets for the electric vehicle fleets and charging stations. However, for microgrids, it was found that there is less information on their deployment and application. As such, more detailed technical and economic assessment following its potential connection to current grid with other features including variable renewable energy and electric vehicles, as well as the available smart features in optimising power scheduling, should be carried out.
Technical Due Diligence for Minihydro Power Plant Project in Indonesia
Authors: Pangarso Suksmo Satriyo , Aminata Jaka , Utama Nuki Agya 
Published: March 2022

Abstract
Technical due diligence as part of the bankability due diligence carried out by the bank for the minihydro power plant (MHPP) project which will be financed for its construction. This research is to determine important variables as the object of due diligence and to conduct technical due diligence based on the variables. The important variables as the object of due diligence were obtained from interviews with group of experts who have experience in the construction of MHPP. The results of the interviews were processed using the Relative Importance Index (RII) and the Analytical Hierarchy Process (AHP) method to determine the risk ranking/weight. The due diligence process is carried out on submitted project documents and onsite verification to three sample of MHPPs at West Sumatera Province, Indonesia. Based on the assesment to each variables to the sample MHPPs, we get result that one MHPP does not ready to be financed from a technical point of view.
PV Rooftop Repowering Potential In Indonesia: Study Case
Authors: Barran Ihsan , Setiawan Eko Adhi 
Published: March 2022

Abstract
Indonesia is intensively building solar energy, which divided into three types, namely rooftop, solar farm, and floating solar with a target-installed capacity of 37.15 GW. A lot of land area is required for the development of solar energy for the next 20-25 years. The average land area required for 1 PV module is approximately 2 m2, so it is predicted that the new land area needed will be difficult to obtain in the future. Repowering is a solution to deal with these potential problems, repowering is an interesting new business in Europe when we have to face power plants that have entered the end-of-life. The study aims to analyze if repowering is implemented, we can reduce the Levelized Cost of Electricity. A plant with a capacity of 1.4 MWp will be used as the basis for the simulation. Using a monitoring system to see energy production, temperature, irradiance, and performance ratio is used as the methodology for collecting data. After that, it will analyze from a technical and economic point of view. The result shows that energy production increased by 24% or by 10,645,786 kWh and the Levelized Cost of Electricity decreased by 0.02 USD/kWh with an IRR of 5.67% and a payback period of 14.5 years. This study finds that repowering can reduce electricity tariffs and increase energy production.
Unlocking Hydrogen Full Potential as ASEAN Future Energy
Authors: Clarance Fernando 
Published: March 2022

Abstract
Hydrogen or also known as H2 in chemical writing become one of a high potential renewable fuel, energy storage, and energy carrier. There’s various types of hydrogen based on its processing, which are Black & Brown Hydrogen, Grey Hydrogen (95% of hydrogen produced from this type), Blue Hydrogen, Bio-Hydrogen, and Green-Hydrogen. Blue and green hydrogen is the suitable choices for energy application especially in ASEAN because of carbon capture and storage (CCS) technology that applied on the process and greenhouse gases (GHG) free. But generally, hydrogen application in ASEAN is not optimally unlocked, only a few countries and a few sectors applied hydrogen as renewable energy sources (RESs). The main problems on these issues are hydrogen application cost is not competitive to other RESs. The high cost of hydrogen might cause by high production cost that should be lowered down by applying various technology to the production process such as CMR-SMR. This study critically research on solution of how hydrogen can be used optimally in ASEAN from technical, technology, and economics perspectives.
Crystalline C3N4/CeO2composites as photocatalyst for hydrogen production in visible light
Authors: Saman F , Bahruji H , Mahadi H 
Published: March 2022

AbstractCrystalline carbon nitride (C-C3N4) doped with cerium oxide (CeO2) was synthesized using ionothermal method to increase the photocatalytic activity for H2production. Graphitic carbon nitride (g-C3N4) obtained from direct pyrolysis of urea at 550°C was subsequently annealed with a mixture of KCl and LiCl to obtain C-C3N4. CeO2was doped onto C-C3N4and g-C3N4via calcination at 550°C. XRD analysis showed the formation of high intensity C3N4and CeO2peaks in C-C3N4/CeO2, meanwhile g-C3N4/CeO2only showed CeO2peaks. FTIR analysis confirmed all the samples contained C3N4polymeric structure. The specific surface area of g-C3N4was measured at 61 m2/g. The surface area increased to 92 m2/g when g-C3N4transformed into C-C3N4, and further increased to 106 m2/g on C-C3N4/CeO2. The photocatalytic activity for H2gas production showed significant increase of H2rate on C-C3N4/CeO2compared to g-C3N4/CeO2and g-C3N4. The high crystallinity and high surface area were suggested to enhance photocatalytic activity of C-C3N4/CeO2in visible light presumably due to the increase of electron and hole lifetimes.
PV industry in China and three Southeast Asia countries: A systematic literature review using PRISMA
Authors: Rizqullah Hasian Rambey Muhammad Faiz , Setiawan Eko Adhi , Madsuha Alfian Ferdiansyah 
Published: March 2022

Abstract
One form of renewable energy utilization that has been recognized as environmentally friendly and helps maintain world carbon emissions is Photovoltaic (PV), where global energy companies are starting to move towards PV investment. This study highlights the PV industry condition in China as a giant country in producing PV and three South-East Asia states. Systematic literature review with Preferred Reporting Items for Systematic Review and Meta-analyses (PRISMA) is used as the methodology for collecting data. PICOS (Population, Intervention, Comparator Group, Outcome or Endpoint, Study Design) is used as an approach method for forming questions in searching for data sources. PRISMA diagrams are formulated in a hierarchical form to select potential sources of literature. Finally, this study uses 71 literatures from China, 5 literatures from Indonesia, 9 literatures from Malaysia, and 4 literatures from Vietnam. This finding indicates that with abundant literature discusses China’s PV industry, their PV industry is more advanced compared to three South-East Asia countries, which they are still lack understanding and knowledge of PV especially its industry and their aim for PV industry is still unclear.
Evaluation Of Reservoir Performance On Flood Discharge Plan Using HEC-HMS Modelling (Case Study: Selorejo Reservoir
Authors: Susetyo Dhany , Cahyono C. 
Published: March 2022

Abstract
Water is a valuable resource for humanity, because of this fact humanity has to manage the amount of water resource whether it is in excess condition or scarce. excess water is a problem in water management. Because it can cause natural disasters and waste water in vain. Therefore, water needs to be properly regulated. One way to regulate water is by structural means or it can also be called water reservoirs. Reservoir is one of the structures that are suitable to hold water and become a means to regulate the water itself. Referring to the POW (dam operation pattern) and ROTW (annual reservoir operation plan) from the Ministry of PUPR, it is said that the condition of the reservoir must be reviewed for development and changes in its utilization at least every 5 years. The solution chosen to evaluate the selorejo reservoir is to use the Rain-runoff Relationship Model in this case using HEC-HMS version 4.2.1, to find out whether the reservoir is still able to accommodate the flood discharge that was planned at the beginning of construction. Due to the age of the Selorejo Reservoir which has reached 48 years, the Selorejo Reservoir itself is planned with an effective age of 50 years. From analysis result we can conclude that even there is change in reservoir capacity due to sedimentation, Selorejo Reservoir still able to accommodate 1000-year Period Flood and if the reservoir kept in +610 m level, it will be able to accommodate PMF Flood.
Feeder design for sustainable transportation using stated preference: case study in Gubug-Tegowanu, Grobogan City
Authors: Hartini S , Audina S , Saptadi S , Pasha C Y 
Published: March 2022

Abstract
Bus Rapid Transit is mass transportation which was developed as a way to promote sustainable social mobility. To increase BRT effectiveness, it needs a feeder design that connects the region of the villages in Grobogan City, passed by the BRT Semarang-Gubug route. This research used the stated preference method to know passengers’ responses to the offered design in Gubug – Tegowanu via Kapung. The questionnaires survey and interview started by determining the number of samples using purposive sampling technique and distribute it in 8 different scenarios to motorcycle users in Grobogan City. After the collected result is validated, the data is processed with multiple linear regression and binomial logit to get the probability of feeder choicer, the model predicts the probability of choosing between two modes of transportation based on cost, travel time, and waiting time attributes. The sensitivity analysis shows that the significant attribute which affects the modal shift is the waiting time/headway. The probability of modal shift passengers in optimist scenario is 0.8310 with travel cost is IDR 3,500, travel time is 15 minutes and waiting time/headway is 10 minutes maximum.
The Study on Using HDPE and Crumb Rubber on Concrete Mixture
Authors: Harsojo Achmad Priandika , Nataadmadja Adelia Dwidarma 
Published: March 2022

Abstract
In 2018, about 24% of waste in Indonesia has not been managed properly, which resulted in about 15 out of 65 million tons of garbage produced in Indonesia every day ended up polluting the environment. One solution that has been applied was to recycle certain types of waste, such as crumb rubber and high-density polyethylene (HDPE) plastic and mix them in concrete mixture. The purpose of this research is to analyse the effects of waste usage in concrete mixtures against compressive strength, porosity, electrical conductivity (EC), total dissolved solids (TDS), and pH. The waste material used was processed into a fine grain shape and passes a filter of 2.36 mm. The percentage of waste that will be used to replace the fine aggregate levels of concrete was 5%, 7.5%, 15%, and 17.5%. From the research results, it can be observed that increasing the waste content in conventional concrete increases the compressive strength but reduces the EC value.
Integration of land survey data using aerial photogrammetry method on 3 dimensional bim (Building Information Modeling) Modeling
Authors: Christian Y. , Setyandito O. , Juliastuti  , Haripriambodo T. 
Published: March 2022

Abstract
The use of UAV (Unmanned Aerial Vehicle) in land surveys and the implementation of BIM (Building Information Modeling) in the construction world has begun to be used frequently, both in the manufacture of infrastructure and building structures. The purpose of this study was to determine the effectiveness of the use of UAV in land surveys with parameters of cost, quality and time, and to find out whether the land survey can be integrated with a 3-dimensional design with applications related to BIM. This study uses secondary data in the form of aerial photo data and 3-dimensional BIM design data, which produces some data such as 3-dimensional data from the layout of a land using UAV, with a fairly good level of effectiveness compared to previous studies. In addition, the results of the integration of a 3-dimensional map of a land survey using a UAV with a 3-dimensional design of the BIM method can provide a visualization of the design form with actual conditions in the field.
The Impact of Sound Sources on Perception Dimensions in Indonesian Settlements Area
Authors: Djimantoro M I 
Published: March 2022

Abstract
The disruptive technology and Covid-19 pandemic situation caused many activities to be carried out at home. Activities at home often cause physical and mental health problems if not supported by an excellent residential environment. The United Nations also emphasized that this attention to physical and mental health is one of the sustainable issues that need to be taken seriously by paying attention to the quality of the surrounding environment. An alternative approach to improve mental health is through a soundscape approach. A soundscape is an approach that investigates the relationship between the acoustic environment and the perception of the environment it evokes. This study tried to look at the relationship between the sound source around the Indonesian settlement area and the residents’ resulting perception. Resident’s perception data are collected in several residential areas in Indonesia. The results of this study indicate the elements of sound sources that affect the perception of residential areas. These elements need to be regulated to improve physical and mental health in the residential area, to create a more sustainable environment for humans.
The Impact of Indoor Lighting on Work Comfortability in Temporary Workspace at Home during Work from Home (WFH)
Authors: Yunita Indah Puspa , Dewi Ova Candra 
Published: March 2022

Abstract
This study aims to determine the significance of the indoor lighting effect on work productivity. The outcome of this research is expected to become a reference in improving the indoor lighting quality for the temporary workspace at home. Space utilisation for work at home increases in line with the practice of Large-Scale Social Restrictions (PSBB) and Work from Home (WFH). It forces some of the space function changes in the worker’s house. Work activities need to be supported by Indoor Health and Comfort (IHC), one of which is the suitability of light intensity and light temperature to the room functions. By applying a mixed-method approach, the research began with quantitative research, correlating the result analysed by the Pearson method. The research continued by qualitative research, study case approach. The collected data is analysed by the Tau Kendall method. The result of this research indicates that there is a significant positive correlation but not significant as indicated by the Pearson rvalue of 0.372 between the respondent’s thoughts about indoor lighting to their work duration.
Actions for Sustainability: The implementation of Recycling Thermoplastics in Furniture Design for Painting Community in Jakarta
Authors: Sofiana Yunida , Wulandari Nuraini , Indahyani Titi 
Published: March 2022

Abstract
Concern for the environment, especially the pile of plastic waste, is an issue that needs attention, especially for designers and the communities. How can both of them contribute to environmental care through the application of sustainable design into existing facilities in the community? The focus of this paper is how the implementation of thermoplastics recycled materials (HDPE) for furniture in the painting community can be an inspiration and educational value for the painting community's action in sustainability. The paper will be discussed the design process of design inspiration with the implementation of thermoplastics (HDPE) as a recycled material that can be an inspiration for the painting community and analyze the application of thermoplastics (HDPE) as recycled materials in the design process carried out. The research was conducted in descriptive qualitative research consists of literature review on sustainable design, thermoplastics (HDPE), recycled materials, and painting community activity and by doing some observation on related design implementation and how the design process could extend the series of furniture for painting community. The results of this paper are how the furniture design can be used by the painting community as an inspiration and educational action for sustainability. The resulting design is expected to be an inspiration and educational value for other communities and society on how thermoplastics (HDPE) as recycled materials from waste products can be implemented for sustainable living.
Ecology and Architecture in the art of making an Aesthetics Artwork
Authors: Ardiani Yanita Mila 
Published: March 2022

Abstract
Architectural inspiration comes from a combination of various multidisciplinary sciences. One of the combinations that inspire Architects to produce works is the combination of Ecology and Architecture, where each other is interrelated. Ecology and natural forms in Ecology can inspire new architectural forms. This paper will discuss the origin of inspiration from ecology that can be applied in Architectural Aesthetics. The method used is to collect precedent studies and literature studies related to these matters. Then, in the end, the works of Bina Nusantara University Architecture Students who designed Aesthetics forms from Architectural Ecology installations will be shown in the Aesthetics course. Experimentation experiments and discussions can inspire students to produce an architectural work from the aesthetic form of a combination of Ecology and Architecture.