bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of the water regime of lakes and reservoirs in the Muynak region in order to improve their hydrological and hydrobiological condition
Authors: Kurbanbaev Sagit , Seytimbetov Allayar , Arzuov Maulenbergen , Akimbaeva Saltanat , Baymuratov Rashid 
Published: December 2024

Abstract
This paper presents the results of field studies to determine the actual morphometric characteristics of water bodies of the Amudarya River delta, in particular the Mezhdurechye reservoir, Muynak and Rybachy bays. In connection with the deteriorating environmental situation and the need to stabilize it, based on the research results, the main characteristics of reservoirs were determined, in particular their actual volumes, and a watering regime for these objects was developed, as well as an assessment of the productivity of reservoirs.
Slope Stability analysis based on rock mass rating (RMR) method at an open pit mine, east Java, Indonesia
Authors: Koriawan G P , Mawaleda M , Pachri H 
Published: December 2024

Abstract
A significant problem that often arises in open pit mining is slope instability. The hydrothermal processes allow mechanical and physical properties of the original rock mass to change, thus incurring challenges in open-pit mining operations. The purpose of this study is to analyze the slope stability of hydrothermally altered rocks in an open pit mine in Banyuwangi. Geotechnical investigations are crucial to obtain rock samples for laboratory testing. We employed the thin section method in petrographic analysis to determine the types of minerals present in the rocks, and the empirical Rock Mass Rating (RMR) classification to identify changes in hardness for each type of altered rock through the Point Load Index test. Based on the calculation results, the material properties required for the slope stability analysis were determined. This analysis was conducted using Rocscience software with the Limit Equilibrium Method to assess the Safety Factor, then the Total Displacement must be calculated using the Finite Element Method. This study highlights the importance of understanding alteration types and the characteristics of the rock mass. The stability of open pit slopes is significantly influenced by the type of alteration with low RMR values.
Physicochemical analysis and sequential extraction of rare earth elements from Malaysian ion-adsorption clays
Authors: Rukayah  , Marzani N F N , Saud A , Jabit N A 
Published: December 2024

Abstract
The growing demand for Rare Earth Elements (REEs) has spurred the search for new sources, including ion adsorption clays. This research focused on characterizing ion-adsorption clay minerals and sequentially extracting samples from Kelantan, Malaysia, to assess their potential for REE extraction. Techniques such as XRF, XRD, and ICP-MS were used to analyze the samples, which primarily consisted of Si, Al and Na. XRD results indicated that kaolinite and quartz were the main components of ion adsorption clay. Sequential extraction revealed that most REEs were in the ion exchangeable fraction, with lanthanum, cerium, and neodymium showing higher concentrations. This study advances REE extraction methods and lays the groundwork for future research
Characterization of the Pit Lake Area for Sustainable Management at a Coal Mine in Central Kalimantan, Indonesia
Authors: Tuheteru E J , Dwinagara B , Haq S R , Hartami P N , Jati V J , Suhaila  , Putri A S 
Published: December 2024

Abstract
A pit lake, formed at the end of mining activities, can potentially be sustainably utilized. Several mines in Indonesia have reached the end of post-mining, and some have been abandoned as voids that eventually become lakes. Pit lake planning needs to be conducted to ensure these lakes are useful and sustainable. One of the former mining areas that has become a pit lake is located in Central Kalimantan. The dimensions of the pit lake are 2,300 m long, 620 m wide, and approximately 68 m deep. The amount of water in the pit lake is estimated to be approximately 37.5 million m3. This research was conducted to determine the potential use of the pit lake by characterizing the factors affecting its sustainable use. Observations were carried out to comprehensively understand the characteristics of the pit lake area. Field measurements were carried out to assess water quality, while rock samples were taken to analyze their geochemistry. Measurements in the field indicated that the lake water pH was in the range of 5 to 6. Meanwhile, the area around the pit lake has several open areas where revegetation has failed, resulting in rock exposure around the pit lake area. Geochemical tests on 23 samples from around the pit lake area showed that 15 samples had pH values below 6. Mineralogical tests on 4 samples indicated the presence of secondary minerals generating acid mine drainage, such as jarosite. Based on the obtained results, efforts must continue for the long-term use of the pit lake, including the closure of open areas and water treatment, so that the water can be used for operational needs in the field.
Bioconversion of legume cover crop waste into organic fertilizer based on integrated composting-vermicomposting method
Authors: Ismadi R A , Apriawan R , Sidabutar J 
Published: December 2024

Abstract
Circle weeding is a mechanical strategy in controlling legume cover crop (LCC) entanglement at the reclamation area of PT Mitrabara Adiperdana Tbk, Indonesia. Circle weeding generates up to 3.83 tons/ha leavings of LCC biomass, serving as recycled raw material for compost but with poorly degraded biomass. This experimental study attempted to discover an effective procedure to generate LCC Fertilizer by testing the integration between composting and vermicomposting. The chopped LCC were fermented using bioactivator for 21 days, then added with cow manure at different ratios as bulking materials for vermicomposting. The results showed that the recovery value obtained from the composting stage was 64.43%. The most ideal composition was 50:50 LCC to cow dung with 12-day vermicomposting which resulted in 93.27% recovery value. Laboratory analysis on the nutrient content indicated the fertilizer was suitable for soil amendment. Parameters of heavy metals, micronutrients, and N are up to par, whereas P and K for solid organic fertilizer based on KEPMENTAN RI No. 261/KPTS/SR.310/M/4/2019 were subpar. Further development is advised.
The structure control on volcanic spring pattern distribution eastern slope of Salak Mountain and western slope of Pangrango Mountain on Cisadane upstream watershed, Bogor, West Java, Indonesia
Authors: Silohadi S I T , Kusumayudha S B , Prasetyadi C , Yatini  , Pamungkas H S R 
Published: December 2024

Abstract
This study investigated the structures affecting spring distribution patterns and types study in the upstream Cisadane Watershed of Bogor Regency, on the east and west slopes of Mount Salak and Mount Pangrango. The morphotectonic and structural analyses were performed using the Landsat digital elevation model (DEM) and satellite imagery data processing. Initial information about geological structures was gathered by examining and determining the lineament, or straightness, of hills and slopes to derive broad patterns. Calculating morphotectonic and structural straightness (lineament) connected with the distribution pattern of springs was performed as the descriptive, quantitative, and correlative approach. The findings indicated a relationship between the morphotectonic general pattern of structure and influence on the properties and distribution of springs and the straightness pattern of hills and valleys. The active morphotectonic analysis result revealed moderate to high-class active tectonics. The northwest-southeast and southwest-northeast directions were indicated by the lineament analysis results; the density of the lineament pattern determined the spring distribution pattern.
Sustainable supply chain in carbon emissions assessment with blockchain technology driven: a framework for mining industries
Authors: Vikaliana R , Rahmawati N F , Hidayat Y R , Islah K , Sari S N , Santoso T , Kristanto R 
Published: December 2024

Abstract
Mining sector contributes significantly to global emissions, so reducing greenhouse gas emissions is important for both economy and the environment. Some viable approaches include incorporating blockchain technology, establishing sustainable supply chains, and developing environmentally conscious supply chain designs. The aim of this study was to recommend a framework for measuring carbon emissions in mining supply chains driven by blockchain technology. Basing the framework on a systematic literature review, we further confirmed our findings through interviews with informants from various stakeholders in the mining industry (n=10). The results showed that by integrating blockchain technology into the evaluation of carbon emissions in supply chains, sustainability would greatly improve. The framework outlined in this article delineates the procedures and advantages of employing blockchain technology to expand transparency, mitigate emissions, and bolster overall sustainability. Potential future research areas may probe deeper into investigating the economic consequences and regulatory factors, and enduring viability of carbon emissions management frameworks that utilize blockchain technology.
Five years of monitoring the swampy forest system: a pilot project for acid mine drainage treatment to achieve threshold value
Authors: Noor I , Hairudin  , Arifin Y F , Mustafa A 
Published: December 2024

Abstract
This research evaluated the effectiveness of the swampy forest system, a unique and cost-effective approach developed based on a conventional method for acid mine drainage treatment at the Jorong coal mine in South Kalimantan, Indonesia. The conventional method uses lime for acid neutralization and is often considered expensive. Acid mine drainage, with its high acidity and heavy metal contents, must be mitigated to achieve threshold values before being released into public waters. This research aimed to determine whether the swampy forest system pilot project, implemented in 2019, had sustainable and proper operations. As mandated by applicable regulations, quarterly observations of seven threshold parameters before and after acid mine drainage were conducted between 2019 and 2024. The observations revealed that the swampy forest system could change the parameter values to achieve the threshold value within five years of operations, demonstrating its exceptional long-term sustainability. Conclusively, this system is viable for natural application at a low cost at the closure stage of the abandoned mine.
Analysis of work productivity and compatibility of excavation-loading equipment and transport equipment in soil salvaging activities at Katala Hill area of PT. Amman
Authors: Taufikurrachman  , Rahmawati D 
Published: December 2024

Abstract
PT. Amman Mineral Internasional Tbk in Katala Hill, West Nusa Tenggara Province, Indonesia, is an open-pit mining company producing copper as its main commodity, followed by gold and silver. The initial stage of mining involves soil removal in land clearing activities for reclamation, waste disposal areas, and construction of other infrastructure. In soil salvaging activities, it is essential to understand the influential factors to productivity and the match factor in mechanical equipment, including work efficiency, delay time, cycle time, fill factor, and swell factor. The objective of this study is to determine the productivity and match factor values of the digging-loading equipment and transportation equipment in soil salvaging activities in the Katala Hill area. This study applied the descriptive quantitative method, involving direct field observations of the digging-loading and transportation equipment activities and interviews with mining workers. Based on the results, the actual work efficiency of the digging-loading equipment was 59% and the transportation equipment was 76%, the actual productivity of the digging-loading equipment was 825.00Bcm/h, the transportation equipment productivity was 611.17 Bcm/h, and the compatibility factor value is 0.7408. After increasing the work efficiency of the conveyance by 83%, the conveyance productivity was 667.46 Bcm/h with the match factor increasing to 0.8090.
Negotiating wilder nature: developing a views-of-nature typology
Authors: Christoffersen Lisbet , B Randrup Thomas 
Published: December 2024

Abstract
Communication is an integral part of landscape management, and effective dialogue across views of nature and knowledge systems is needed for sustainable transformations. To allow for a plurality of biodiversity management practices, the ability to recognise and reflect on diverging management approaches and attitudes is needed to facilitate a dialogue between holders of conflicting visions. This article offers a typology that helps identify and understand competing discourses, or ‘nature arguments’, which actively shape what can (or cannot) be thought of as reasonable management strategies to accommodate biodiversity. We explore nature arguments anchored in fundamentally different assumptions about what is right, appreciated or true, and identify three different ideal types. In literature, web-pages, public debates and professional journals, we see a trend in views of nature towards ‘a wilder paradigm’, challenging existing approaches to biodiversity accommodation. Comprehension of the different nature views, including one’s own, and a simultaneous awareness of ‘persuasive powers’, can help the facilitation of a difficult and sometimes heated negotiation.
A material design guideline for self-assembled vertically aligned nanocomposite thin films
Authors: Song Jiawei , Wang Haiyan 
Published: December 2024

Abstract
Nanocomposite thin films, comprising two or more distinct materials at nanoscale, have attracted significant research interest considering their potential of integrating multiple functionalities for advanced applications in electronics, energy storage, photonics, photovoltaics, and sensing. Among various fabrication technologies, a one-step pulsed laser deposition process enables the self-assembly of materials into vertically aligned nanocomposites (VANs). The demonstrated VAN systems include oxide–oxide, oxide–metal, and nitride–metal VAN films and their growth mechanisms are vastly different. These complexities pose challenges in the designs, materials selection, and prediction of the resulted VAN morphologies and properties. The review examines the key roles that surface energy plays in the VAN growth and provides a generalized materials design guideline combining the two key factors of surface energy and lattice strain/mismatch, along with other factors related to growth kinetics that collectively influence the morphology of VAN films. This review aims to offer valuable guidelines for future material selection and microstructure design in the development of self-assembled VAN films.
Beyond smoothness: the art of surface texturing battling against friction
Authors: Xiao Qianhao , Wang Xuanyao , Wang Yayong , Zheng Wei , Xu Jiwen , Luo Xichun , Sun Jining , Zhang Lei 
Published: December 2024

Abstract
Leveraging surface texturing to realize significant friction reduction at contact interfaces has emerged as a preferred technique among tribology experts, boosting tribological energy efficiency and sustainability. This review systematically demonstrates optimization strategies, advanced manufacturing methods, typical applications, and outlooks of technical challenges toward surface texturing for friction reduction. Firstly, the lubricated contact models of microtextures are introduced. Then, we provide a framework of state-of-the-art research on synergistic friction optimization strategies of microtexture structures, surface treatments, liquid lubricants, and external energy fields. A comparative analysis evaluates the strengths and weaknesses of manufacturing techniques commonly employed for microtextured surfaces. The latest research advancements in microtextures in different application scenarios are highlighted. Finally, the challenges and directions of future research on surface texturing technology are briefly addressed. This review aims to elaborate on the worldwide progress in the optimization, manufacturing, and application of microtexture-enabled friction reduction technologies to promote their practical utilizations.
Optimal PI controller parameter setting for torque ripple minimization in SVPWM–DTC based BLDC motor drive using sine cosine algorithm
Authors: Kumar Mallempati Sunil , Satheesh Gopisetti , Sujatha P 
Published: December 2024

Abstract
This paper focuses on the selection of the most suitable values for the PI controller parameters to minimize the discrepancy between the desired reference values and the actual values of speed and torque in the context of Space Vector Pulse Width Modulation-Direct Torque Control (SVPWM-DTC) of Brushless DC motors (BLDCM). To effectively fine-tune the PI controller, the criteria of Integral of Squared Speed Error (ISSE), Integral of Squared Torque Error (ISTE), and Integral of Squared Flux Error (ISFE) are taken into account as the objective functions across various scenarios. Nevertheless, when it comes to optimizing multiple objective functions, the most optimal approach is to reduce their linear combination. This paper employs JAYA and Sine Cosine algorithms (SCA) for the calibration of the gain parameters of the PI Controller. To assess the effectiveness of the proposed optimal PI controller for SVPWM-DTC of BLDCM, simulations are conducted. According to the findings of the simulations, the Sine Cosine technique yields a remarkable improvement by reducing the torque ripple and controlling the speed peaks overshoot reducing it to 61.6% and 11.9% respectively, and the JAYA algorithm.
Developing precision in WEDM machining of Mg-SiC nanocomposites using machine learning algorithms
Authors: Tamang Santosh Kumar , Chauhan Aditya , Banerjee Debojit , Teyi N , Samanta Sutanu 
Published: December 2024

Abstract
Wire electrical discharge machining (WEDM) is one of the most commonly used non-conventional machining processes in the aerospace, nuclear, and precision industries. This technology possesses numerous advantages over traditional machining processes due to its superior properties, such as high precision of machined surfaces, ease of machining of complex shapes, and hard material processing. This study focuses on investigating the performance characteristics of Mg-SiC nanocomposite through experimental analysis using WEDM, with surface roughness as the key evaluation parameter. Employing a fractional factorial design, twenty-five experimental datasets were generated to explore the impact of WEDM machining parameters, including Pulse on time (T

on
), Pulse off time (T

off
), Servo voltage (SV), and Peak current (I

p
), on surface roughness. Leveraging a machine learning approach, specifically, Support Vector Regression (SVR) integrated with Genetic Algorithms (GA) and Particle Swarm Optimization (PSO), an integrated predictive surface roughness model for machined substrates was developed. The predicted results exhibited a high level of agreement with experimental data, boasting a coefficient of determination (R2) value of 0.866 and a mean square error (MSE) of 0.364. A novel aspect of this work lies in integrating GA-PSO with SVR to obtain optimized surface roughness values. Through this methodology, SVR-GA and SVR-PSO achieved optimum surface roughness values of 0.187 μm and 0.132 μm, respectively, with SVR-PSO demonstrating superior performance by outperforming SVR-GA after 360 and 428 iterations, respectively. Thus, this study presents a novel and effective approach to optimizing surface roughness values in WEDM processes.
Rejection ratio and responsivity of dual-layer III-nitride alloy photodetectors
Authors: Allam Zehor , Boudaoud Chahrazad , Bouchachia Badia 
Published: December 2024

Abstract
The III-Nitride alloys (AlGaN and InGaN) photodetectors with Schottky barriers have been studied, focusing on two structures with active layers: one based on Al0.25Ga0.75N/GaN semiconductors and the other on an In0.05Ga0.95N/GaN heterostructure. For an overall efficiency of 70%, both proposed devices exhibit remarkable responsivity. The AlGaN structure achieves a responsivity of 111.25 A W−1 at 2 V, while the InGaN device attains 4.302 A/W under the same voltage. At an applied voltage of 8 V, the responsivity of the AlGaN device increases to 83.73 A W−1, compared to 34.42 A/W for the InGaN device. When operating at 10 V, the AlGaN structure achieves a responsivity of 105 A W−1, whereas the InGaN device reaches only 6.84 A W−1. At room temperature, the visible rejection ratio for the Al0.25Ga0.75N/GaN device is 3.33 × 104 at 10 V, a high value that indicates the superior performance of the Al0.25Ga0.75N photodetector. In comparison, the In0.05Ga0.95N/GaN-based photodetector achieved a value of 2.935 at 10 V. Additionally, the maximum photocurrent obtained was 3.045 mA for the Al0.25Ga0.75N device at 10 V and 0.0472 mA for the In0.05Ga0.95N device at the same voltage.
ILSI Europe Systematic Review: The Impact of Digestible and Nondigestible Carbohydrate Consumption for Toddlers (1–4 Years) in Relation to Health Outcomes
Authors: Zalewski Bartlomiej M , Weiss Gisela A , Campoy Cristina , Decsi Tamás , Di Profio Elisabetta , Mestdagh Renaud , Rakhshandehroo Maryam , Szajewska Hania , Theis Stephan , Vaughan Elaine E , Verduci Elvira , Chang Ching-Yu 
Published: December 2024

Abstract

Context
Early dietary habits play a crucial role in shaping long-term health outcomes. Understanding the effects of different carbohydrate types on physiological markers is essential for developing evidence-based nutritional guidelines for toddlers.

Objective
The aim was to systematically evaluate the impact of both digestible and nondigestible carbohydrate intake during early childhood (1–4 years of age) on various health outcomes, including growth patterns, metabolic parameters, and the development of risk of cardiovascular diseases.

Data Sources
PubMed, Embase, and CENTRAL databases were searched up to April 2022 to identify studies investigating carbohydrate consumption in toddlers.

Data Extraction
The types of carbohydrates consumed, their sources, and their associations with growth parameters and metabolic markers were extracted. Thirty-one publications, including 18 cohort studies and 2 randomized controlled trials, were included.

Data Analysis
The risk of bias was assessed using the Mixed Methods Appraisal Tool. A narrative synthesis was performed, with a visual summary table of the direction of effects.

Conclusion
In toddlers, the negative impact on health risks later in life is more pronounced for digestible dietary carbohydrate intake in liquid forms, such as sugar-sweetened beverages and fruit juice, compared with solid forms. Higher nondigestible carbohydrate (dietary fiber) intake during early childhood showed a beneficial trend on later lipid profile. Further studies are required to comprehensively assess the effect of digestible and nondigestible carbohydrate intake in toddlers on cognitive and psychomotor development, infections, bowel function, and gut microbiota.