bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Impact of Land Use Change on Surface Runoff at Air Dingin Sub-watershed, Padang City Indonesia
Authors: Rusli H A R , Aprisal  , Aditya T H 
Published: May 2023

Abstract
The land load in the Air Dingin Sub-watershed is increasing due to the relocation of the Padang City administrative center to the district. Subsequently, this not only reduces the catchment area but also increases the surface runoff, because the open green space, which originally served as a catchment area, has been converted into settlements. A random measurement of the infiltration rate with a double-ring infiltrometer was used as a method and analyzed using the Kostiakov technique. The infiltration capacity obtained is then classified quantitatively into infiltration zoning. The runoff discharge was analyzed using Modeling System of hydrology, while the flow coefficient was determined by analyzing topography, land use, and soil type data with HEC-HMS modeling, the HSS SCS CN Method and ArcGIS 10.6. The Kostiakov method is used to calculate the capacity value in field filtration. This method took into account the physical properties of the soil and land cover. The performed analysis showed that the runoff discharge was 788.70 m3/sec, while the design discharge (2010) was 600.0 m3/sec. The runoff discharge increased by 188.70 m3/sec or an increase of 31.45%. The average infiltration rate in this area was 0.000002–0.5 cm/minute, and there was a residual discharge after the infiltration and percolation process of 499.31 m3/second. This residual discharge caused flooding in Air Dingin Sub-watershed with an initial inundation of 5.72 minutes after the rain. In terms of zoning division of the catchment area based on the value of the infiltration rate, the Air Dingin Sub-watershed area is in a very low infiltration rate zone.
A study of land suitability for developing corn in West Sumatra: an approach of GIS-based multi-criteria and legacy soil data
Authors: Naspendra Z , Junaidi  , Sandi N , Harianti M 
Published: May 2023

Abstract
In 2020 Indonesia imported 911,194 tons of corn. Therefore, each region needs to optimize their land-use. One of the potential areas for corn development is in West Sumatra. Therefore, this research was conducted with the objectives of a) assessing land suitability for corn and b) analyzing limiting factors and alternatives for land improvements. The geodatabase analysis used an approach of GIS-based multi-criteria and legacy soil data. Land suitability was analyzed using the Matching method with classes highly suitable (S1), moderately suitable (S2), marginally suitable (S3), and not suitable (N). The results showed that 33.9% of the land in West Sumatra was suitable for corn cultivation (1,210,592.9 ha). The suitability class consisted of an S1 of 169.5 ha, an S2 class of 143,761.2 ha, and an S3 class of 1,066,662.2 ha. As much as 66% of the land was not suitable for corn cultivation due to slope factors and rooting media. The S2 and S3 classes had main subclasses S2.tc.wa.eh widely distributed in Dharmasraya and Sijunjung, S3.wa.oa in Pesisir Selatan, and S3.wa in West Pasaman. The limiting factors of subclasses S2 and S3 of corn in West Sumatra were due to high rainfall, steep slopes, and poor drainage.
Chemical properties of dragon fruit probiotic drink produced by biocapsules Lactobacillus paracasei ssp. paracasei M1.3 isolated from “Dadih” traditional fermented food West Sumatra
Authors: Agustina  , Elida M , Putri M A , Elviati  
Published: May 2023

Abstract
In this research, Biocapsules Lactobacillus paracasei ssp. paracasei Ml.3 isolated from “dadih” was used to ferment a probiotic drink made from dragon fruit juice. L. paracasei ssp. paracasei Ml.3 biocapsules are produced by extruding carrageenan-skim (2:1). Making dragon fruit juice probiotic drink using L. paracasei ssp. paracasei Ml.3 at concentrations of 3%, 5%, and 7% for 18 hours. The following factors were analyzed: nutritional adequacy rates, moisture content, ash content, protein, fat, crude fiber content, carbohydrate, sugar, and total dissolved solids. The results showed that the use of culture concentrations of 3%, 5%, and 7% had no significant effect on the dragon fruit juice probiotic drink’s chemical characteristics. All fermented products (3%, 5%, and 7%) had an average water content of 81.93–82.56%, an ash content of 0.17–0.19%, protein content of 0.53–1.45%, a fat content of 0.33–0.42%, crude fiber content of 0.24–0.39%, carbohydrate content of 15.10–16%, sugar content of 12–13%, and a total soluble solids content of 16.5–17.2%. The highest antioxidant capacity against ascorbic acid was obtained in the 3% treatment, 94.28 ppm. The product’s nutritional adequacy rate meets the criteria set forth for functional foods, where the nutritional adequacy rate number indicates that protein makes up 0.267 kcal (0.133%) of total energy, fat makes up 0.196 kcal (0.049%) of it, and carbohydrates make up 35.474 kcal (2.534%).
Molecular detection of rice tungro bacilliform virus (RTBV) on weed host in South Sulawesi
Authors: Rosida N , Senoaji W , Ibrahim E , Kuswinanti T 
Published: May 2023

Abstract
Rice tungro bacilliform Virus (RTBV) is one of the viruses that cause tungro disease in rice plants causing leaf yellow and plant stunting. Some weed species have also been described as potential hosts for RTBV in addition to rice. However, RTBV cannot be diagnosed in weeds only by looking at their morphological symptoms because weeds infected with RTBV do not show typical symptoms. Hence this research was conducted to detect the presence of RTBV molecularly on several weed hosts in rice fields in South Sulawesi. The polymerase Chain Reaction technique with coat protein gene-specific primers was used to detect RTBV. A total of 29 leaf samples consisting of 12 weed species collected from Sidrap, Pinrang, Maros, and Gowa were then extracted genomic DNA from the leaf samples for PCR analysis. The results of PCR analysis showed that weed samples that tested positive for RTBV were Panicum repens (Lawawoi/Sidrap), Echinochloa crusgalli (Lawawoi/Sidrap), Cyperus difformis (Lanrang/Sidrap), Echinochloa crusgalli (Palangga/Gowa), Fimbristilys miliacea (Lanrang/Sidrap), and Eleusine indica (Lawawoi/Sidrap) which were indicated by the presence of RTBV virus DNA fragments with 430 bp in length in all these weeds. Weeds infected by RTBV formed 2 clusters. The first cluster consisted of RTBV in P.repens and E.crusgalli from Lawawoi/Sidrap, RTBV in C.difformis and F.miliacea from Lanrang/Sidrap, and RTBV in E.indica from Palangga/Gowa. At the same time, the second cluster consisted of RTBV in E.indica from Lawawoi/Sidrap.
Morphological, characterization and FTIR analysis of delignified pineapple leaves as raw material for cellulose production
Authors: Sumiati T , Suryadi H , Harmita  , Sutriyo  
Published: May 2023

Abstract
Lignocellulose is an abundant natural polysaccharide component containing cellulose, hemicellulose and lignin. Pineapple leaves contain high levels of cellulose and their utilization as abundant plantation waste is still not optimal. The delignification process was carried out to isolate cellulose and remove lignin contained in pineapple leaf fibers. This study aims to obtain high purity cellulose and analyze the effect of delignification on morphology and FT-IR results. In this study, the pineapple leaf fiber used underwent a delignification process by adding a Deep Euteutic Solvent (DES) solvent consisting of a mixture of Choline chloride (ChCl): formic acid (1:2). The cellulose obtained was characterized by morphology and analyzed using FT-IR. FTIR pineapple leaf fiber with delignification treatment still contained lignin in the absorption area around 1600cm−1 with C=C aromatic group as shown from the peak on the FTIR graph, fiber and it was clarified in the morphology of pineapple leaves which showed that the fiber surface was smoother and looked less lignin. In this study it can be concluded that the delignification process that has been carried out can remove lignin from the material.
Development of microalgae and agrobost mutualism symbiotic technology in the aerobic treatment of sago refinery wastewater
Authors: Zalfiatri Y , Restuhadi F , Pramana A , Rossi Evy , Rahmayuni  , Johanes D 
Published: May 2023

Abstract
Sago wastewater is 94% of the water produced from the sago processing that could pollute the environment. One of the biological treatments to solve this problem is the use of mutualism symbiotic between the microalgae Chlorella sp. and agrobost with the addition of 5.000 lux constant light. The purpose of this research was to develop symbiotic technology for microalgae and aerobic bacteria in the decomposition of liquid sago waste, in particular for optimizing the photosynthesis process. Furthermore, the reduction of BOD, COD, and organic content could be fast and effective. The research applied a Completely Randomized Design (CRD) with five treatments and three replications. The treatments were addition of 800 ml/l (7.595 log cell/ml) as much to sago waste at variation of concentrations (0% v/v,1% v/v, 2%v/v, 3% v/v, 4%v/v). Data were statistically analyzed using the Analysis of Variance, followed by Duncan’s New Multiple Range Test (DNMRT) at the level of 5%. The result showed that the addition of agrobost microorganisms significantly affected BOD, COD, DO, and pH of sago wastewater. The treatment selected from the results of this study was the P4 treatment with the highest reduction on day 7 with a BOD value of 116.06 mg/l, COD 200.90 mg/l, DO 6.62 mg/l, and pH 8.90.
The effect of functional bacterial consortium on nutrient content of liquid organic
Authors: Sondang Y , Muflihayati  , Anty K , Siregar R 
Published: May 2023

Abstract
Bacterial compatibility testing is very important to determine which bacteria will be consorted as bio activators when making liquid organic fertilizer. Bacteria that are inoculated into the manufacture of liquid organic fertilizers must have a cooperative and synergistic relationship with fellow bacteria to be efficient in their role as bio activators. To obtain this potential, a compatibility test against bacterial isolates needs to be carried out so that liquid organic fertilizers will be made efficient and effective. The research purposes are to obtain the compatible properties of functional bacterial isolates and their impact on liquid organic fertilizer’s nutritional content. The study was carried out at the Plant Protection Laboratory and Greenhouse of the Payakumbuh State Agricultural Polytechnic, West Sumatra from July to September 2022. The research method began with the rejuvenation of the dry bacterial isolates of Pseudomonas aeruginosa, Bacillus subtilis, Bacillus cereus, and Bacillus thuringiensis. Followed by the compatibility test using the double culturing method, a total of 20 treatments with three replications. The bacterial consortium is inoculated into the manufacture of fertilizer. The results of the compatibility test against P. aeruginosa and genera of Bacillus showed all treatments were compatible which was indicated by the absence of a halo inhibition zone with a compatibility index value between 0.67-1 and could be combined in a consortium as a bio activator. The best P2O5, K2O, and Ca nutrient content is found in the formula of fertilizer with bone meal additives.
Evaluation of potential total carbon stock under various agroforestry types in Senaru Forest Area-North Lombok, Indonesia
Authors: Sukartono  , Arifin A B , Lolita E S , Karina P S , Sutriono  , Fahrudin  
Published: May 2023

AbstractThe different agroforestry management can perform different potentials for carbon sequestration. The study aimed to estimate the potential of carbon stocks in various types of agroforestry in the last 20 years in Senaru area, the sub district of Bayan, Northern Lombok. The study was conducted from June to August 2022. Different types of agroforestry managed on entisols include mahogany based agroforestry(Swietenia mahagoni), Cacao-based agroforestry (Theobroma cacao), Coffee-based agroforestry(Robusta Coffee), Sengon based- agroforestry(Albizia chinensis), and Porang-based agroforestry(Amorphophallus muelleri). Samples for measuring above ground biomass at each agroforestry were carried out on plot area of 20 m x 20 m. Samples for soil organic carbon (SOC) was carried out by collecting 4 composite soil samples at each type of agroforestry at soil depth of 0-5 cm and 5-10 cm. In addition to the soil organic-C, measurements were also made on soil bulk density, total porosity, and soil texture. The results of the study showed that the total carbon stocks varied under different types of agroforestry. Mahogany based agroforestry produced the highest total carbon stocks, 440.64 ton.ha−1, and subsequently, it was followed by sengon-based agroforestry, coffee, cocoa and porang with values of 371.54 ton ha−1, 305.33 ton ha−1, 166.15 ton ha−1and 153.93 ton ha−1respectively. Thus, to support sustainable agroforestry management in this area, it is important to consider the timber tree stands that potentially produce high biomass as well as the need to improve the diversity of high biomass vegetation in areas with low vegetation density.
Establishing criteria for smart retrofitting decision-making for buildings
Authors: Peiris Sanduni , Lai Joseph , M Kumaraswamy Mohan 
Published: May 2023

Abstract
Buildings are among the largest sources of carbon emissions, so their owners have been compelled to set stringent sustainability goals in response to the global call for carbon neutrality. Consequently, facility managers are pressed to make their buildings smarter through adopting greater value-for-money sustainability solutions. Besides the implementation of traditional energy-saving measures, retrofitting buildings with smart building (SB) features, known as ‘smart retrofitting’ (SR), has become a growing trend. However, there is still no known set of appropriate criteria for making decisions on SR. To fill this void, a study was undertaken, where a four-tier hierarchical framework of SR decision-making criteria has been established after a thorough literature search on the Web of Science database followed by an in-depth qualitative review and a focus group discussion. A total of 32 criteria were identified, which fall into five categories: (1) Financial; (2) Technical; (3) Human; (4) Environmental; and (5) Legal, safety, and security. A key finding is that it is not merely the post-retrofit performance but also the retrofitting process itself that plays an important part in SR decision-making. The identified criteria demonstrate that ‘smartness’ encompasses not only ‘energy efficiency’ but also a vast array of other technical and social factors. The broad scope portrayed by the criteria, which needs to be considered holistically, provides guidance to facility managers in making SR decisions. Future works for refining the SR decision-making framework are also outlined.
Towards BIM-based Maintenance of Elevator Systems: A Process-based Approach for Information Requirement Definition
Authors: Benn M , Stoy C 
Published: May 2023

Abstract
Building information modelling (BIM) plays a pivotal role in the construction industry’s digital transformation. Effective implementations of BIM-based processes during building operations, however, remain limited. One reason for this is a lack of guidelines or templates for the early definition of information requirements for BIM-based processes. The present study proposes a process-based approach for the definition of information requirements for the BIM-based maintenance of elevator systems to address this research gap. The methodology applied for this study involves literature research, literature analysis and an expert interview. As a result, a total of 14 process steps were developed to derive 37 information requirements, leading to the following observations: (1) most of the derived information requirements are static asset data; (2) the derived information requirements are neither specific to an industry nor building context; (3) a considerable proportion of the derived information requirement coincides with asset information. The results contribute to the body of knowledge by proposing and elaborating an approach to independently define information requirements for BIM-based processes in building operations in general and by providing the first iteration for the BIM-based maintenance of elevator systems in detail. Three further research directions are proposed based on the study results: (1) further analyses to define which information should be handed over in a BIM; (2) the development of generalized, industry-independent information requirements for basic information requirements; (3) the development and application of exchange information requirements (EIR) based on the study results.
Digital Transitions for Future Building Scenarios
Authors: Ghalandar T , Lindkvist C 
Published: May 2023

Abstract
The goal of this review is to study the future of the built environment and facility management. This is important work due to the changing dynamics of projects in the AEC/FM industry in relation to current digitalization concepts and technological interventions associated with Industry 4.0, the fourth industrial revolution. This technocentric change of dynamics is not radical by nature but evolutionary, defining new processes and data flows in projects for which the potential for FM and its future is not defined. This is a gap throughout the project lifecycle from early planning and design to construction, use, and FM. The research question is how the evolution of digital technologies in the built environment and facility management is understood within a future perspective. A literature review is conducted using relevant keywords such as Future of FM, Digital Transitions, BIM, Digital Twins, and IoT for FM. The theoretical lens falls within organizational learning to develop a holistic view of the FM subject in identifying the relationship between current and future innovation. It is expected that technological innovation evolves in a manner that benefits the interoperability of people, processes, and machines along with predictive measures and scenarios for the digital future of the industry. The practical implications of such a study could inform gradual change in the integration and evolution of digital technologies in project organizations.
Analyzing Water Use Embodied in the Initial Construction and Life Cycle Management of Healthcare Facilities
Authors: Dixit M K , Pradeep Kumar P 
Published: May 2023

Abstract
Most research on the environmental sustainability of buildings often centers on reducing energy use and may overlook an equally crucial aspect of freshwater use. Buildings consume 1/5th of global fresh water in their construction as embodied water (EW) that must be reduced for long-term sustainability. Like embodied energy (EE), the EW of a facility is composed of a direct component used in construction processes and an indirect component that includes water used in manufacturing construction materials. An equally important component rarely covered in EW calculations is the energy-related embodied water (EREW), which comes from different energy sources that are consumed as EE, each of which depletes a significant amount of water in its generation, refinement, and transmission/transportation. This paper presents a macroeconomic model to compute and analyze not only the direct and indirect EW but also EREW of healthcare facilities. A wide variation is observed in calculated EW values associated with facilities’ initial construction (1,010-38,750 gallons/m²) and life cycle management (1,335-51,250 gallons/m²). The findings further show that EREW may represent 7.7% and 6% (average 6.7%) of the total EW of healthcare facilities relating to their initial construction and facilities management, respectively, including interior and exterior maintenance, repairs, and replacement activities. The significance of these findings is twofold. First, it shows that reducing EE may not help decrease most EW of a facility, and additional measures must be applied to decrease water use holistically. Second, it highlights the urgency of decreasing the water footprint of both renewable and non-renewable energy sources.
ISO 19650.3 and the digitisation of operations in strata-titled residential apartment developments
Authors: Tanfield K. , Heywood C , Warren-Myers G , Kalantari M , Shojaei D. 
Published: May 2023

Abstract
The purpose of this paper is to identify shortcomings of the application of ISO 19650.3: Organisation and digitisation of information about buildings and civil engineering works including building information modelling (BIM) Information management using building information modelling Part 3: Operational phase of the assets during the design, documentation, and construction of strata-titled residential developments. The problem is that the original owner/clients of these speculative developments have little interest in the long-term management or operations of these buildings. As a result, these owners are not motivated to ensure that the information required for the development of an asset information model (AIM) is defined, identified, and provided to the future owners of these buildings. This paper compares traditionally accepted development models of most commercial, industrial, and institutional projects to that of apartments sold ‘off-plan’ during construction, using a content analysis of ISO 19650.3 as the theoretical lens. The theoretical application of ISO 19650 to strata-titled residential development identified challenges to the processes identified in this standard. This research made it clear that ISO 19650.3 cannot be applied to speculative development in its current form and that modifications are required if the digitisation of operations of speculative residential development is to be realized.
A co-creative method for mapping and improving energy use and management in non-residential buildings
Authors: Verhulst E , Pettersen I N , Junghans A , Berker T 
Published: May 2023

Abstract
The built environment has a significant role to play to support a transition towards sustainability. A critical point is the energy use and management of non-residential buildings, where the operational phase has been identified as the largest contributor to energy use over a building’s lifecycle. To achieve performance in line with ambitions, there is a strong need to address interactions between architecture, technology and the people who use and maintain non-residential buildings, and to foster collaboration between different stakeholders. This article introduces a co-creative method that offers the opportunity to gather insights on how energy management and use happen on a day-to-day basis in the building, as experienced by the different stakeholder groups. The main goals of the presented method are to gather insights into the perspectives of different stakeholder groups on a systemic level and to offer innovative ways to search for opportunities to improve the energy performance of the building. Stakeholders include users or tenants, building operators, facility managers, and building owners. The article presents the method, examples from user-testing in Norwegian school and office buildings and reflects on how co-creation principles can add value to improving energy use and management in non-residential buildings.