bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modification of exploration of long‐term nutrient trajectories for nitrogen (ELEMeNT-N) model to quantify legacy nitrogen dynamics in a typical watershed of eastern China
Authors: Zhou Jia , Wei Yinghuai , Wu Kaibin , Wu Hao , Jiao Xinyi , Hu Mingpeng , Chen Dingjiang 
Published: May 2023

Abstract
Legacy nitrogen (N) is recognized as a primary cause for the apparent failure of watershed N management strategies to achieve desired water quality goals. The ELEMeNT-N (exploration of long‐term nutrient trajectories for nitrogen) model, a parsimonious and process-based model, has the potential to effectively distinguish biogeochemical and hydrological legacy effects. However, ELEMeNT-N is limited in its ability to address long-term legacy N dynamics as it ignores temporal changes in soil organic N (SON) mineralization rates. This work represents the first use and modification of ELEMeNT-N to quantify legacy effects and capture spatial heterogeneity of legacy N accumulation in China. An exponential function based on mean annual temperature was employed to estimate yearly changes in SON mineralization rate. Based on a 31 year water quality record (1980–2010), the modified model achieved higher efficiency metrics for riverine N flux in the Yongan watershed in eastern China than the original model (Nash–Sutcliff coefficient: 0.87 vs. 0.72 and R
2: 0.80 vs. 0.71). The modified ELEMeNT-N results suggested that the riverine N flux mainly originated from the legacy N pool (88.2%). The mean overall N lag time was 11.9 years (95% confidence intervals (CIs): 8.3–21.3), of which biogeochemical lag time was 9.7 years (6.3–18.4) and hydrological lag time was 2.2 years (2.0–3.0). Legacy N accumulation showed considerable spatial heterogeneity, with 219–239 kg N ha−1 accumulated in soil and 143–188 kg N ha−1 accumulated in groundwater. The ELEMeNT-N model was an effective tool for addressing legacy N dynamics, and the modified form proposed here enhanced its ability to capture SON mineralization dynamics, thereby providing managers with critical information to optimize watershed N pollution control strategies.
Developing an Inference Engine for Estimating State of Charge of the Lead Acid Battery
Authors: Asrol Muhammad , Djuana Endang , Harito Christian , Budiman Arief S , Gunawan Fergyanto E 
Published: May 2023

Abstract
Lead acid battery efficiency is affected by huge uncertainty features. An inference engine is required to monitor the uncertainty of the battery state of charge. The objective of the research is to design an inference system to predict the lead acid battery state of charge. A Relief algorithm and Pearson correlation were applied to pre-process the real-world dataset. A fuzzy inference system was adopted to design the inference engine of the state of charge. This research found four main features which had significant impact to lead acid state of charge, including: export power, temperature, volt per cell and ampere. These features had different directions of correlation and furtherly set as inference system’s output. This research had successfully developed an inference engine for lead acid state of charge with Mamdani fuzzy type and centroid defuzzification. In the future, it needs expert validation of the developed rules in the inference system.
Dynamic analysis of continuous box girder bridge
Authors: Hidayat Irpan , Suryatama Febrian 
Published: May 2023

Abstract
Bridge is an adjunct structure as a connection between two edge of road that has been separated under several geographical features. The object of research is the continuous box girder bridge. Light Rail Transit loading is implemented on the continuous box girder bridge with 1 and 2 trainsets of LRT as a study case. The structure’s geometry, support, material, and LRT loading are modelled with finite element analysis software. The natural frequencies of continuous box girder bridge in existing condition is greater than the natural frequencies of continuous box girder bridge with 1 and 2 trainset LRT. Furthermore, the natural frequencies of continuous box girder from resulted finite element analysis is 2.567% lower than the dynamics testing.
Comparative analysis of CPM, PDM and PERT method on the duration of bridge work (Case study : Gelam Bridge Project)
Authors: Asyrofi H R , Arumsari P 
Published: May 2023

Abstract
The preparation of the duration is a very important thing considering that there are many project work activities and must also be arranged in such a way that sequentially starting with the work activity starting until the completion of the bridge project work activity. The use of the three methods in the preparation of project activity activities is the critical path method (CPM), precedence diagram method (PDM), and project evaluation review technique (PERT). The results of the study showed that in preparing the duration of bridge work using these three methods obtained in the CPM method, results were obtained on the duration of the Gelam Bridge project work for 178 days, then using the PDM method, results were obtained on the duration of the Gelam Bridge project work for 141 days, and while the PERT method took a duration of 184.1 days, where the duration was quite long compared to the two methods above, due to the aspects of probability. The calculation of the duration will always be different because it depends on the volume of the work to be done to the coefficients in the work with the method used.
An analysis for safety and environmentally friendly pedestrian characteristic and crossing facilities selection, (case study: Jalan Alternatif Cibubur)
Authors: Santoso Azka Azeilya Rahma , Prahara Eduardi , Darmantoro Tory 
Published: May 2023

Abstract
Pedestrians can cross the road safely if suitable facilities are provided for traffic conditions. The purpose of this study is to analyze the characteristics of pedestrians at zebra crossing facilities and choose alternative crossing facilities to confirm the safety and environmentally friendly of pedestrian and crossing facilities. Based on the analysis, men crossed faster than women, men’s speed was 1.28 m/sec and women’s speed was 1.20 m/sec. The individual crossing speed is faster than the platoon, the individual speed is 1.23 m/s and the platoon speed is 1.18 m/s. From the survey results, the pelican cross crossing is more recommended for these conditions, the travel time for pedestrians with a zebra cross is 17 seconds and after simulating the travel time with a pelican crossing 10 seconds. This scenario can reduce the travel time for pedestrians to reach their destination by 7 seconds, therefore the Pelican crossing facility can be used as an alternative facility.
Evaluation of Trends for Iron and Manganese Concentrations in Shallow Groundwater, Jakarta City
Authors: Parrangan Adelia Maria Julieta , Wijayanti Yureana , Soekotjo Ernie , Sasongko Nugroho Adi 
Published: May 2023

Abstract
Groundwater is one of the sources of clean water in DKI Jakarta. However, it was found that there is a decrease in groundwater quality. The objective of this study is to evaluate trends for iron and manganese concentration in shallow groundwater in Jakarta City from 2017-2020. Based on groundwater quality testing data, analysis and evaluation of groundwater causation were carried out by a spatial map of the distribution of DKI Jakarta groundwater quality. The results of the analysis show that some groundwater quality parameters experience fluctuations in the concentration of contaminants. Spatial maps produced through geographic information systems represent the distribution of patterns of groundwater quality distribution that occurred in the period 2017-2020 and 2022 using interpolation techniques. The amounts of manganese and iron in the groundwater of Jakarta are slightly higher than the permissible limits of national standards guidelines.
The Usage of Organic Waste in Porous Asphalt
Authors: Marelo Ardito Rafi , Nataadmadja Adelia Dwidarma 
Published: May 2023

Abstract
Porous asphalt is a mixture of asphalt with a low proportion of fine aggregate to obtain high air void content, which would create a water drainage path inside the pavement to be channelled into the drainage system. Usually, the materials used as filler are relatively expensive, such as Portland cement and lime, and hence, it is necessary to look for other cheaper alternative materials, such as organic waste. This study aims to determine the effect of using organic waste as a filler in porous asphalt mixtures on the Marshall and Permeability tests results. The organic wastes chosen were used coffee grounds (7%, 8%, 9%), tofu dregs (7%, 8%, 9%), sawdust (7%, 8%, 9%), and coconut fibre (4%, 5%, 6%). The porous asphalt in this study was prepared based on the Australian Asphalt Pavement Association (AAPA) standard. The results showed that the best outcome came from using 7% of sawdust on the porous asphalt mixture.
The analysis of cofferdam construction based on risk assessment using HIRARC and FMEA methods
Authors: Saraswati Nala Nabila , Juliastuti  , Haripriambodo Tjatur , Kesuma Lalu Marhayani 
Published: May 2023

Abstract
Cofferdam work on dam construction has the potential for hazard risks in terms of occupational health and safety (OHS) such as extreme conditions such as weather and natural disasters. This study aims to identify and analyse these hazards using the Hazard Identification Risk Assessment and Risk Control (HIRARC) and Failure Mode Effect Analysis (FMEA) methods. The results showed that there were 16 potential hazard risks including 12 hazards identified as moderate risks and 4 hazards identified as low risks. The percentage of dominant risk from Risk Priority Number (RPN) value shows that the highest percentage is 9.69% for the risk of cofferdam collapse due to extreme rain/flood. The control technique is used based on the hierarchy of control such as elimination, substitution, engineering control, personal protective equipment (PPE).
Complex dam break simulation using the 2-D depth-averaged SPH flow model: a validation for tsunami application
Authors: Aslami Muhammad Hafiz , Rogers Benedict D. , Stansby Peter K. , Bottacin-Busolin Andrea 
Published: May 2023

Abstract
Dam break flow has a similar characteristic to the tsunami surge after the breaking wave. Therefore, it is often used in laboratory-scale experiments to study tsunamis and can be used as a benchmark for validating a numerical model. This paper presents a simulation of a complex dam break flow to validate the two-dimensional (2-D) depth-averaged Smoothed Particle Hydrodynamics (SPH) flow model which involves a non-submersible obstacle in the domain. The method can also be referred to as shallow-water equations SPH (SWE-SPH). With SPH, the wetting and drying interfaces are automatically solved without any additional trick or handling. Therefore, a dry bed dam break is specifically tested here. The numerical results are validated using experimental data from the literature. The model shows the ability to reproduce the flow fields, shocks, vortices and flow region transitions with reasonable accuracy compared to the experimental data, despite the vertical averaging process in the formulation. This model can be a robust tool for predicting the hazards caused by extreme floodings, such as dam breaks, flash floods and tsunamis in development planning.
Study of the Interaction between Fluid Flow and Solid Particle with Smoothed Particle Hydrodynamics Method
Authors: Suntarto Rut Puspaningtyas , Sjah Jessica , Rika R.R Dwinanti , Bahsan Erly 
Published: May 2023

Abstract
This study shows the interaction between the solid particles with water flow occurring caused by the piping erosion phenomenon. This modelling study was executed by using Smoothed Particle Hydrodynamics (SPH) as a numerical approach with the DualSPHysics platform. The water flow is assumed as laminar flow with a low Reynolds number of 100 and 200. The solid particle is modelled as a circular-shaped particle with a fixed position. The result evaluated in this research is the coefficient of hydrodynamics force on the solid particle. In the case of interaction between one circular-shaped solid particle against the water flow, it is found that by increasing the size of volume control, the output will have higher accuracy. The accuracy of this model is also improved by elongating the maximum time simulation to ensure that the SPH particle has spread evenly throughout the volume control. In the case of interaction between two solid particles against water flow at different distances, it is found that increasing the distance between the two particles reduce the force, drag coefficient, and lift coefficient of each particle. Furthermore, the increase of distance between the two particles makes vortices form in a single dominant frequency and it affects the strouhal number.
Utilization of Used Bus for Children’s Reading and Learning Facility in Kemayoran Area
Authors: Dewanti Nabilla Retnananing , Indahyani Titi , Natasya Gwendy , Aurelius Alexia 
Published: May 2023

Abstract
Utilization of used bus by redesigning its interior which takes the concept of curved, non-sharped, and non-angled from ladybug anatomy. Looking at the problems of dropouts in the Kemayoran area, used bus can serve as a means and learning facility for them. The bus is located in the Kemayoran Forest area with consideration of easy-to-reach distance, safety, and user comfort. The method used is a qualitative research method with data collection and analysis of case studies described narratively. The results of the design can help underprivileged children continue to be able to open insights and get training for certain skills to improve their standard of living of them and their families in the future.
Application Time Management of Concrete Precast Wall Work on High-rise Campus Building
Authors: Dewanto Rivanus 
Published: May 2023

Abstract
In the implementation of building construction, especially in the context of functionality of campus buildings, punctuality is an important thing that must be strictly followed because it concerns the start of lecture schedules that cannot be delayed. Therefore, it is necessary to have precise time management of building construction during all the implementation. It’s cannot be separated in building construction between the innovation of work methods and improvisation of quality control which are two processes that need to be implementation in an effort to achieve efficiency and. One of the innovations in building construction, is installation of a concrete precast wall as a cover for the facade of the Binus campus building. Concrete precast wall is made of a good material, as an effort to reduce solar heat entering the room. Furthermore, all existing constraints must be mapped properly as support implementation concrete precast wall. One of antecedents of implementation concrete precast wall in building construction is time management of machine construction tools when use tower crane. Researcher knows the issues of building construction are limitations time using tower crane efficiently, working tools, weather conditions, time of material application, labelling system, quality control mechanism and installation system. In other side, those strengths, weaknesses, opportunities, threats, that can be used as an approach and analysis, start from resource mapping, work requirements, material quality control and coordination systems between sub-supporters. The success of this work depends on the application and coordination calculation time, inspection and quality procedure is main of a consistent methodology from manufacturing in the workshop to installation in the field. In addition, efficiency and effectiveness can provide good quality, saving time and costs.
Design of Workstation for Remote Workers with Work Environment Consideration
Authors: Mariana Y , Wijaya Feshia , Tubagus Ahmad Dwinandana P 
Published: May 2023

Abstract
The COVID-19 pandemic that began in 2020 has caused various phenomena in some fields of work, especially the phenomenon of remote working. The phenomenon of remote working is possible through the advancement of information and communication technology (ICT). The good impact on the environment, especially air pollution decreasing due to the lack of commuting, makes the phenomenon of remote working need to be enhanced so that the positive impact on the environment increases. This exploratory research found that the work environment factors in the workstation design, including physical ergonomics, lighting, noise, etc., greatly affect the productivity of remote workers. This workstation design is a solution for remote workers during and post-pandemic.
Green thinking of Indonesian architects
Authors: Andracana I G N 
Published: May 2023

Abstract
This study explores the environmental-based design, which is framed into green thinking as the input of the design process. Five Indonesian architects were selected as this study’s subject based on their understanding of this design concept. The qualitative strategy is employed with the tactic of in-depth interviews and content analysis with the help of NVivo software to produce themes and patterns regarding this study’s discussion. This study comes with two main findings: the concept’s inclination of Indonesian traditional architecture, which incorporates local materials and conditions employment as these five Indonesian architects’ tendency toward green thinking. The second one is green thinking’s accommodation in the design development stage, also the research and site analysis stage, which are perceived as input of the design process.
Green Community Center: Using Long-life Material for Low Maintenance and Serviceability.
Authors: Wijaksono S , Wibowo GS 
Published: May 2023

Abstract
A community center is a building that unites various functions and is adapted to the character of the area and the needs of its residents. If it is related to the Sustainable Development Goals, then one of the targets can be met by providing public spaces that are safe, inclusive, and easily accessible to everyone. Specific space requirements and capacities of different users are a problem in community center so a movable partition system could be one solution. In addition, space configuration can also be arranged so that it is not monotonous by utilizing existing partitions. The problem in this research is how to choose a durable movable partition material for use in a community center. In addition, this study aims to determine durable movable partition materials so that the community center can not only meet the needs of its residents but also have flexible spaces and support sustainable architecture. The method used in this study is a comparative method by analyzing the durability of several materials commonly used as partition materials. Based on the results of the analysis and discussion of research data, the movable partition material that can be used is a PVC board. This is because PVC boards are resistant to water and termites and are not harmful to the environment.
Self-Energy Harvesting through Architectural Design: Harnessing embodied energy in the Human Environment.
Authors: Wizaka W , Suharjanto G 
Published: May 2023

Abstract
This research is conducted in searching for the energy related to Architectural design that is generated from human activities as well as cultural or human life patterns. So the paper provides a review of the current self-energy harvesting literature including the discussion about the research of energy that is potentially related to the architectural design that can produce energy through the self-energy harvester concept including the widely used methodologies, new materials and technologies, and human daily activities in the building that related the potential energy harvesting.
The contributions of this work to the study of architectural design are as follows. First, this study presents a clear description of the current self-energy harvester research situation and its development. Second, this research gives more and clearer opportunities in the future to generate energy through Architectural design. Third, this study clarifies the topics and problems in self-energy harvesting that need further studies based on a comprehensive review on existed pieces of literature and human behaviour analysis that can be used as energy sources. Though today’s Architectural Design seems to be a bit far in self-energy harvesting, the energy is potentially harvested by Architectural Design.
This research is expected to find out the intersection between Architectural design and self-energy harvesting engineering in a building concept and how it has been researched or applicated so far.
Housing Satisfaction and Preferences Towards Indoor Quality Related to the Environmental Factors in the Context of the Covid-19 Pandemic
Authors: Sakina B , Setiawan D 
Published: May 2023

Abstract
Covid-19 had changed the way we perceived our living environment. As people now spent more time inside, indoor quality especially in terms of environmental factors is considered important in future housing. It is not just one of the indicators for healthy housing, but also green housing. The purpose of this study is to investigate Indonesian’s housing satisfaction and preferences towards indoor quality in terms of environmental factors in the context of the Covid-19 Pandemic. The environmental factors indicators used in this study were daylight, air, acoustic, view, and green space quality. This quantitative study used an online questionnaire to collect data. The data analysis compared mean values and gap differences of values for each indicator. The results showed residents were satisfied enough with almost all of the indicators in their current living environment during the pandemic. As for residents’ preferences, daylight quality, air quality, and green space are the top priorities needed to be considered for their dream houses. As for gap differences, it was found that green space, air quality, and acoustic quality needed to be improved, as respondents’ expectations are higher. Understanding housing satisfaction and preferences from the residents’ perspectives in the context of Covid-19 pandemic is considered important, as their demand can motivate developers and other stakeholders to adopt healthy and green building practices. It is hoped that the results of this research can support the studies on future healthy and green housing, especially in terms of environmental factors quality.
Interior design of bakery shops and cafes using sustainable materials in Malang city
Authors: Jeadi E P , Primadani T I W , Kurniawan B K , Putra W W , Nisrina B R N 
Published: May 2023

Abstract
The primary purpose of a bakery shop design is the convenience of visitors, but the design sustainability aspect is also something that must be considered. In the interior design of bakery shops and cafes, using environmentally friendly materials will be the topic of discussion in this study. The problem is using sustainable materials to create interior designs for bakery shops and cafes following the company’s image. The case study in this research is a bakery shop and café with a modern vintage style in Malang City. This study uses qualitative methods and design exploration. Data was collected through literature studies, field surveys, and interviews with café owners and users. The results of this study are the application of sustainable materials applied to the interior elements of this bakery shop and café design. The material is applied as a backdrop for walls, ceilings, and furniture. The results of this study are expected to be able to become a problem solution for textile waste generated due to the continuous development of technology and people’s lifestyles. This effort is to harmonize the technology development and maintain the environmental quality for human life in the future.