bluuebunny/crossref_metadata_2025_split huggingface dataset:
Riverbed Erosion Analysis of Winongo River Using HEC-RAS 5.0.7
Authors: Harsanto P , Nursetiawan  , Kamiel B P , Cahyani I 
Published: December 2021

Abstract
Winongo River originates from small rivers on the slopes of Mount Merapi. This creates potential debris floods that will carry material such as sand and gravel, which can cause erosion and sedimentation in rivers. Riverbed erosion is the process of transporting materials on the riverbed that causing the elevation on the riverbed to fall. If the riverbed elevation decreases, it will cause the retaining wall building to become unstable and collaps. If this happens, it will have a negative impact on the people who live along the riverbanks. The impact of erosion and erosion analysis at the bottom of Winongo River is carried out using HEC-RAS 5.0.7. There are 200 cross-sections that had been analyzed. The analysis reveals that the locations have the potential of erosion on the riverbed and the damage that can occur in the riverbank. From the results of the analysis that have been carried out using the 2-year return period (Q2), there are erosion in 9 cross-sections on Winongo River which is located in Bambanglipuro District and Jl. Parangtritis. The depth of erosion that occurs reaches 0.96 m in the cross-section WN 173. The erosion causes damage to the retaining wall, such as cracks, flattening, and collaps.
Equivalency of the diagonal shear strength of plastered and non-plastered lightweight brick walls to the strength of red brick walls
Authors: Sarwidi  , Jafar  
Published: December 2021

Abstract
Simple (non-engineered) house buildings are so popular in Indonesia. However, the vast majority of these buildings were damaged in the past earthquake events. In such building type, the masonry walls contribute as structural elements to withstand the load. Currently, the innovation that is emerged to be favoured by the community is lightweight brick walls, therefore, such kinds of walls need to be deeply and widely explored by a series of research. The purposes of this study are to compare the maximum shear loads between plastered and non-plastered brick walls as well as lightweight brick walls with various thicknesses through laboratory tests and to find the equality of maximum shear loads lightweight brick walls against red brick walls. This study used laboratory test and literature study. This study concludes that, the addition of plaster on a lightweight brick wall provides additional maximum load to the wall in the amount of 74,6336%. Maximum load of non-plastered red brick walls is equivalent to the strength of a non-plastered light brick wall with a thickness of 47.26 mm. For plastered red brick walls, maximum load to carry is equivalent to plastered lightweight brick walls with a thickness of 168.76 mm.
Risk analysis of landslide as a basis of mitigation plan: a case study of Mangunan Village, Bantul, Indonesia
Authors: Aminatun S , Jafar  , Jamal A U 
Published: December 2021

Abstract
When rainy season comes, in Mangunan Village, landslide occurs frequently. Mangunan is one of the villages in Bantul District that possesses high intensity of landslide events. Located in a contoured hilly area on the eastern region of Bantul District is one of the reasons. This study aims to analyze the risk of landslide in Mangunan by detailing the risk map, which constitutes a general risk map, and to identify the number of households that are currently residing in each risk-zone area. In this study, we applied a descriptive method that combined both qualitative and quantitative approaches in order to generate a good depiction of settlements in each risk-zone area. The data of this study can be classified into two categories, primary and secondary data. Primary data were obtained from field activities such as interviews and field documentation. Meanwhile, secondary data were obtained from archives, notes, or reports from related agencies. The results of this study are: 1) the number of settlements that are located in high- and medium-vulnerability areas are 143 and 12, respectively; 2) Mangunan Village possesses high hazard level, medium to high vulnerability level, and high-capacity level which means the village has medium to high risk level; 3) Recommendations of infrastructure development for landslide mitigation.
Physical Distancing Concept of Public Space Placemaking in Post Covid-19: A Study Precedent
Authors: Anggraini S P 
Published: December 2021

Abstract
Physical distancing is part of the design process affected by the spread of Covid-19. 4 work precedents use physical distancing due to the Covid-19 as part of the problem that must be overcome by adapting and finding new design strategies. This paper analyses a precedent study on a public space design proposal designed for post-Covid-19. This paper aims to provide an overview of the design strategy concept to become a design reference as a solution to Covid-19 Pandemic. The method used in this paper is a precedent method by analysing the case studies that relate between public space and physical distancing with placemaking and physical elements. The results of this paper show that the various functions of the public space proposal show a variety of design approaches in the form of public with considering the physical distancing.
Coastal Settlement Behavior Setting in Kampung Blok Empang, North Jakarta
Authors: Tohjiwa A D , Pramantha R Q , Paksi P R E 
Published: December 2021

Abstract
The purpose of the study was to find out behavior setting and its elements in Kampung Blok Empang. Kampung Blok Empang which is located on the coast of North Jakarta has a port setting and is bypassed by tourist access to the Kepulauan Seribu, so it is interesting to know how the behavior setting in this village is. Data collection is done by field observation and secondary data. The approach used in this research is deductive-qualitative with the research variables in the form of behavior setting. The Behavior Setting in Kampung Blok Empang is shown by how the setting of the urban village located in the port area affects most of the relationships between physical objects and the behavior of residents in the village. The best performance of behavior setting in Kampung Blok Empang is shown in the open space because its milieu-behavior interdependency. It is shown by the repetitive behavior in this specific milieu. The spatial Pattern type is formed by the collective activity of residents and the sea condition. They were characterized by the repetitive activities within their economic and social aspects.
Analysis of Disaster Mitigation in Carita with Environmental Learning in Elementary School
Authors: Rahmayanti H , Soesilo T E B , Sari D A P , Ichsan I Z , Kurniawan E , Titin  , Dasmo  , Hermawati F M , Singh C K S , Rogayan D V , Rahman Md M 
Published: December 2021

AbstractThis study analyzes the profile of Carita people in the efforts of tsunami disaster mitigation and the role of environmental learning in coping with the disaster, then analyzes the use of environmental learning. The method used is a mixed method of qualitative and quantitative methods. The quantitative method measures various community readiness levels in performing disaster mitigation, whereas the qualitative method is utilized to obtain various further information from the communities using interview technique. There were 88 randomly selected respondents participating in this research. The study results indicate a low land utilization density (below 33%). Indicators suggest a good category, namely: people evacuate when a disaster occurs (86%), rescue during a disaster (96.59%), and try to find new livelihoods (82.95%). In addition, public knowledge of disaster evacuation route is at a good level (87.50%) and there is an increase of 39.77% respondents with improved knowledge after the tsunami disaster occurred. Environmental learning, in this case, plays an important role to provide information to the public relating the efforts in disaster mitigation. The conclusion is that community’s disaster mitigation readiness still requires some improvement through various efforts, one of them is environmental learning with learning media in elementary school.
Spatial Analysis of Universitas Indonesia (UI) Urban Forest Microclimate and Its Biodiversity
Authors: Nadia Z , Warno S , Waryono T 
Published: December 2021

Abstract
Universitas Indonesia (UI) Urban Forest is located in the middle of an urban area. Vegetation analysis is one way to define the vegetation health to reach the urban forest sustainability. On the other hand, the vegetation analysis in UI Urban Forest was done thirteen years ago and needed to be updated. Moreover, there has not been vegetation analysis yet of UI Urban Forest using remote sensing combining the microclimate also biodiversity. This research method combines remote sensing and primary data collection. It classify the Landsat 8 (OLI) to the NDVI as the unit analysis (low, medium, high). Primary data collection started by random stratified sampling with a sampling intensity of 0.77% (18 plots), where in each plot, the temperature-humidity was measured, and the vegetation and bird were identified. As a result, the map of temperature and humidity was produced, and it correlates to the vegetation cover where the vegetation is high, the temperature is low, and the humidity is high. On the other hand, the vegetation structure and composition were analyzed. In conclusion, there is a significant difference between the NDVI vegetation class to the UI Urban Forest microclimate and its biodiversity (vegetations and birds).
Suitability of Post-Disaster Coastal Land Cover with Spatial Pattern Plan of Palu City
Authors: Wirawan R R , Hasibuan H S , Tambunan R P 
Published: December 2021

Abstract
The population growth in Palu City has implications for increasing the need for developed land, especially after complex natural disasters in 2018. After these disasters, another impact was the need for the construction of temporary and permanent housing. Therefore, it is essential to adjust the land use with disaster-prone zones. This study aims to analyze the distribution of land cover in the Disaster-Prone Zone and the suitability of the Spatial Plan with the Disaster-Prone Zone. The method used is quantitative through spatial analysis using ArcGIS 10.5 software. The results showed that Disaster Prone Zone 2 is the most dominating zone in both the type of built-up land cover and vegetation so that it still had development opportunities. However, the suitability of the Spatial Planning with Disaster Prone Zone shows that Disaster Prone Zone 4 is still included in the spatial plan as a developed area.
Mapping Environmental Impacts of Rapid Urbanisation and Deriving Relationship between NDVI, NDBI and Surface Temperature: A Case Study
Authors: Saini V 
Published: December 2021

Abstract
Urbanisation is a complex global phenomenon driven by unorganised expansion, increased immigration, and population explosion. Changes in land cover are one of the most critical components for managing natural resources and monitoring environmental impacts in this context. In the present study, a hybrid classification approach was applied to Landsat data to get insight into the urbanisation of the Chandigarh capital region from 2000 to 2020. The results demonstrate an increasing urbanisation tendency on the city’s outskirts, particularly in the north-western and southern directions. The most considerable alterations were seen in the class vegetation as it swiftly transformed to built-up regions. Two indices, namely NDVI and NDBI and surface temperature images, were also derived from studying their inter-relationships. The paper suggests a positive linear relationship between surface temperature and NDBI while a negative correlation between NDVI and NDBI. Such studies may help city planners to take timely and appropriate efforts to reduce the environmental consequences of urbanisation.
Rock Slope Stability Evaluation on The Construction of New Road Shortcut 4 Border City of Singaraja – Mangwitani, Bali
Authors: Sasangka D J 
Published: December 2021

Abstract
Shortcut 4 new national road development project on Singaraja - Mangwitani section Bali found a potential rock slide slope problem. An outcrop of igneous rock with an intensive joint was not expected to be encountered previously. The excavation work in road construction had to pay attention to the stability of the resulting rock slope considering that apart from the potential for slope failure, rock slope could also threaten the bridge abutment building in front of it. The location of the rock slope was on the edge of Lake Bratan which is geologically part of the early Holocene volcanic rocks, namely mountain rocks composed of tuff, lava and volcanic breccia. Anisotropic andesite slope was controlled by a discontinuous plane with a certain pattern. Rock Quality Assessment was carried out by the Rock Mass Rating (RMR) method and Slope Mass Rating (SMR) for slope stability evaluation. The planar, tople and wedge potensial slope failure were evaluated. The potential for planar slope failure has a value of SMR 30.18 (Unstable), 57.6 (Partialy Stable) for wedge slope failure potential and 47.6 (Partialy Stable) for tople slope failure potential. The SMR value indicated that the rock slope requires engineering threatment to become stable.
Spatial Patterns of Expertise Suitability in the Ruminant SubSector of Subang Regency, West Java Province
Authors: Rachmita N , Wibowo A , Koestoer R H 
Published: December 2021

AbstractOne of the causes of the high open unemployment rate for vocational school graduates is the incompatibility of the competency skills held with the potential of the available area. Subang Regency is one area that has considerable potential in the agricultural sector. The study aims to analyze the spatial pattern of expertise in vocational schools based on ruminant commodities in Subang Regency to support agricultural vocational schools according to their superior capacity. This research was conducted using a combined LQ (Location Quotient) analysis to identify the base area and combine physical and non-physical geographic components applying the spatial approach to identify the area’s carrying capacity. The research concluded that Jalancagak, Dawuan, and Cipeundeuy Sub-Districts are the most suitable sub-districts for addressed competency as Ruminant Agribusiness expertise because there are villages with a variety of basic commodities, physical and non-physical aspects of geography that are categorized as high so that the competence of Ruminant Agribusiness expertise carried out according to its carrying capacity. This research also found the expertise suitability competencies based on the village level, as upgrading scale, so that the carrying capacity that supports SMK is known precisely.
Anatomical Comparison of Two Grammatophyllum spp. (Orchidaceae) Species and Their Specific Ecological Adaptation
Authors: Ishmah S , Metusala D , Nisyawati  , Supriatna J 
Published: December 2021

Abstract
The genus Grammatophyllum (Orchidaceae) has two sections with a very different habitus. The Grammatophyllum from section “Grammatophyllum” has a long cylindrical pseudobulb with linear leaves, while the Grammatophyllum section “Gabertia” has a shorter pseudobulb with a larger diameter and broader lanceolate shaped leaves. The study is aimed to compare the anatomical characters of leaf and root between G. speciosum (representation of “Pattonia” section) and G. scriptum (representation of “Gabertia” section). Leaf and root sections were obtained using the mini-microtome with liquid preservation method in 10 replications. Data were analyzed statistically using a t-test at 5% significance. The results showed significant differences between the two species in the leaf’s primary vascular bundle area, velamen area, number of velamen layers, root’s cortex area, and stele area. Future research with more organs and parameters being explored and experimental research regarding its anatomical response to drought is suggested.
The Seawater Heavy Metal Content of the Mining Port Close to the Residential Area in the Morowali District
Authors: Delly J , Mizuno K , Soesilo T E B , Gozan M 
Published: December 2021

Abstract
Mining port operations are complex and can cause various forms of pollution. Analysis of seawater pollution from mining ports is required and complicated because of the various types of pollution, sources, effects, and different characteristics. This study examines the content of heavy metals in seawater in residential areas very close to mining ports. The method used sampling in three different places, examining seawater’s heavy metal properties. Secondary data of the quality of seawater was obtained from the results of data monitoring carried out by the company periodically since the port was built as a comparison material from the results of sample inspection. The results of this study indicate that the waters around the settlements contain heavy metals. The composition of Cd was 10%, Pb was125%, Cu was 625%, Ni was 760%, and Zn was 300% above the standard of seawater quality for the Port Area set by the Indonesian government, which did not match the yearly reports (secondary data). On the other hand, community activities also have a minor role as a source of pollution. Therefore, it is essential to do further research with a focus on finding sources of pollution.
Flyover Development Risk Analysis: Review of The Construction Phase Efforts to Minimize Environmental Impact
Authors: Martono D N , Gusdini N 
Published: December 2021

Abstract
The increase of road segments are needed to overcome traffic congestion in Special Capital Region of Jakarta. Flyover is one of the efforts made to add road segments. The construction of flyovers will change the initial landscape and initial environmental tone. This change affects environmental, social, and economic conditions. All risks in construction activity must be managed to minimize their negative impact. Risks management starts with risk analysis by identification significant impact. This research aims to analyze the risks arising from the construction of flyovers. This analysis was carried out on the Becakayu flyover, which only began operating in 2017. Environmental risk is calculated based on parameters of opportunity, magnitude, level, frequency, and sensitivity of risks that may arise. Based on the results of the analysis, it was found that the construction of flyovers had a moderate risk to the environment during the construction phase. To minimize the risks that may arise, it is necessary to manage the risks that may arise through the construction process that meets the standards, the use of well-maintained equipment, the use of hazard signs, and the measurement of environmental quality during the construction phase.
Application of Threaded System, Rice Husk Ash Addition, Filtering, and Geomembrane to Increase Salt Production in Ambulu Village, Cirebon
Authors: Gozan M , Alhamid M I , Amir N , Efendy M 
Published: December 2021

Abstract
Salt farmers in Indonesia generally carry out simple land processing to produce NaCl levels below 90% and productivity below 80 tons/ha. Several separate efforts have been made to increase the quantity and quality of salt in traditional salt production systems. This work examines the threaded system, additive addition, and geomembrane to increase salt production in Ambulu Village, Cirebon, West Java, Indonesia. The result showed that the quality of salt increases compared to the traditional process. The quality of the salt can be improved. The traditional method of observation contains 91% NaCl. Using a combination of Threaded applications and additives increases the NaCl content by up to 94%. Adding Geomembrane technology from the two previous technologies resulted in salt with a NaCl content of 96%. At the same time, the amount of salt production from Indonesia has also increased to 155 tons/ha, compared to the traditional method, which is 80-90 tons/ha.
Reverse Logistics Analysis on Household Electronic Waste Management Using System Dynamics Simulation Approach
Authors: Putri N J , Kusumastuti R D 
Published: December 2021

Abstract
E-waste is the fastest-growing type of waste in the world. The formal sector can play a role in managing waste according to environmental standards and minimizing the risk of fraction recovery with supporting facilities. However, the formal sector of e-waste management simply cannot compete with its informal sector, which has a dominant role in Indonesia. This study aims to identify what factors influence formal sector e-waste management, how it is currently performing, and to design better policies for e-waste management. This research uses the System Dynamics approach to view the complex systems of e-waste management holistically. In Jakarta, public awareness and the competition with the informal sector were the biggest challenge in this industry. The results show that public awareness-raising policies can gradually improve reverse logistics performance and economic benefits. In addition, the WEEE Processing Fund policy can double the performance and economic benefits.
Supporting Clean Energy in the ASEAN: Policy Opportunities from Sustainable Aviation Fuels Initiatives in Indonesia and Malaysia
Authors: Atmowidjojo A , Rianawati E , Chin B L F , Yusup S , Quitain A T , Assabumrungrat S , Yiin C L , Kiatkittipong W , Srifa A , Eiad-ua A 
Published: December 2021

Abstract
Sustainable aviation fuels is a strategic long-term solution for zero-carbon aviation industry by 2050, thus underscoring the need to accelerate the deployment through reforms in the relevant key areas. Aligned to the agenda, this paper aims to study the policy opportunities for drop-in sustainable aviation fuel (SAF) deployment in the ASEAN by considering the initiatives undertaken. by Indonesia and Malaysia. Four areas are used as coding framework to assess the current status, challenges, and policy opportunities, namely (1) policy, strategy, and reforms; (2) standards and certification system; (3) economic instruments; and (4) international integration. First, the current status and challenges within each country is assessed. Indonesia has shown a more command-and-control approach with an upfront SAF blending mandate. However, it needs to be supported by several compliance measures. Malaysia, on the other hand, has conducted country assessments but no SAF-specific policy has been issued yet. Both countries still lack the economic instruments, while international integration is still relatively under-explored with only limited inter-regional partnerships. As the biggest palm-oil producing countries, Indonesia and Malaysia possess enormous potentials to lead the region in deploying SAF, thus more initiatives are urged.
Indonesia’s Road to Fulfill National Renewable Energy Plan Target in 2025 and 2050: Current Progress, Challenges, and Management Recommendations – A Small Review
Authors: Budiarto A W , Surjosatyo A 
Published: December 2021

Abstract
Indonesia has a large amount of energy consumption, domestically and industrially. Indonesia’s energy mix is still dominated by fossil fuels and coals, with the percentage of 35.64% and 50% respectively in 2020. This is caused by Indonesia’s rich supply of oil and coal, even though experts have predicted that these supplies will run out in 10 years ahead. One option to preserve Indonesia’s energy security is to start using renewable energy. Indonesia’s renewable energy potential is predicted to be around 443 GW of installed capacity, and already made renewable energy mix percentage target of 23% in 2025 and 31% in 2050 in their National Energy Plan. However, Indonesia’s renewable energy percentage in their 2020 national energy mix is only 14.71%. Therefore, to reach their national renewable energy target, Indonesia needs to solve their problems by finding the right actions and strategies in their energy management through stakeholders such as the government, public, and investors. This review will be made by using the literature based research method.