bluuebunny/crossref_metadata_2025_split huggingface dataset:
Urban expansion and archaeological sites of Wat Chulamani, the oldest temple in Muang Phitsanulok, Thailand
Authors: Kongmuang C , Nakkotchasee N 
Published: March 2023

Abstract
Wat Chulamani is one of the oldest and the most important Buddhist temples located on the eastern bank of Nan River in Muang Phitsanulok, Thailand. This research aimed to study land use changes of Wat Chulamani itself and surrounding areas in three periods of time: 1997, 2007 and 2017 by using Remote Sensing and Unmanned Aerial Vehicle Survey (UAV The satellite data sets derived from LANDSAT–5 TM and LANDSAT–8 OLI systems. To classify land use, supervised classification methodology has been employed using the maximum likelihood algorithm. Land use is classified into 5 classes, which are agricultural land, forest land, urban land, water land and miscellaneous land. The Geographical Information System (GIS) was used to process satellite images and to detect changes over time. The result shows that Wat Chulamani and surrounding areas have been changed because of urban expansion which was mainly induced by Naresuan University establishment in 1990. The observed change shows a reduction of agricultural land and an increase in urban land in the past two decades. This paper demonstrates the potential and usefulness of UAV for mapping and monitoring the archaeological sites. It has been found that Wat Chulamani has experienced a number of changes and renovations.
Risk assessment of flash flood situation under land use change using daily SWAT streamflow simulation in Loei Basin, Northeastern, Thailand
Authors: Prasanchum H , Pimput Y 
Published: March 2023

Abstract
Flash flood typically occurs in the wet season caused by heavy rain from upstream to downstream and land use changes. This research mainly aims to apply SWAT model to assess the variation of streamflow in Loei Basin, Northeastern Thailand by comparing the daily streamflow during flash flood in the rainy season in the years 2002, 2011, and 2017. This included considering the three different time periods of land use change patterns input to SWAT to assess the impact on streamflow. The result revealed that daily SWAT streamflow simulation compared to data obtained from KH58A station in 2011 was reliable as could be seen from acceptable R2 and PBIAS. In terms of the tendency of land use change, conventional agricultural was replaced with rubber plantation, sugarcane, and urbanization. From this situation, most flood risk areas occur along the mainstream from middle to northern of basin outlet, including being a municipal community area with a high density of residents. It is expected to be a risky area affected by the flood situation. The result of this research can be used as a guideline for land use and water resource management when encountering sudden changes in hydrologic conditions in the wet season.
Study of potential for earthquake acceleration around NYIA, Kulon Progo based on the history of seismicity in Yogyakarta
Authors: Pandita H , Isnawan D , Winarti  , Pambudi S , Isjudarto A , Sukartono  
Published: March 2023

Abstract
The need for an international airport for the Yogyakarta area has been met with the presence of the new airport, New Yogyakarta International Airport, which is located on the coast of Kulon Progo Regency. The presence of the new airport had become a debate because of its location on Congot Beach and Glagah Beach. One of the debates is the link to vulnerability to earthquakes. This study is intended to determine the Peak Ground Acceleration (PGA) in the area around the airport to the sources of earthquakes that have occurred in the Yogyakarta and surrounding areas, so that the potential level of damage that can be determined. The research method used is to use data from the location of the nearest past earthquake and then calculate the acceleration using the PGA formula. The results of calculations with shallow earthquake sources and megathrust PGA values range from 0.05 to 0.189 gal. This value when converted to the MMI scale shows the V-VII scale.
The threatened plant species in Central Kalimantan of Indonesia and its utilization potencies
Authors: Magandhi M , Lestari R 
Published: March 2023

Abstract
According to the IUCN Red List of plant species in Indonesia in 2021, the amount and the status of those threatened plant species are one Extinct, three Extinct in the Wild, and 856 Critically Endangered, Endangered, and Vulnerable. The ex-situ plant conservation of the threatened plants becomes very urgent in Indonesia including in Kalimantan. The purpose of this study is to find out the species and the categories of the threatened plant species distributed in Central Kalimantan of Indonesia, as well as their potential utilization. At least 125 threatened plant species of Indonesia were distributed in Central Kalimantan. The plant family with the greatest number of threatened plant species distributed in Central Kalimantan was Dipterocarpaceae (46 spp), and Myristicaceae (12 spp). In the total of those threatened plant species, 2 spp were in the category of Extinct in the Wild (EW), 16 spp Critical Endangered (CR), 30 spp Endangered (EN), and 77 spp Vulnerable (VU). Those species had the potency to be utilized for timber, food source/fruit, medicinal, and ornamental plants. The district that possessed the most threatened plant species was Katingan (40 spp.) followed by Kotawaringin Timur (37 spp.), Murung Raya (35 spp.), and Barito Utara (29 spp).
Solar activity-climate relations during solar cycle 24
Authors: Ansor N M , Johari N I , Hamidi Z S , Shariff N N M 
Published: March 2023

Abstract
Solar activity refers to every single Sun’s phenomenon, such as development of sunspots, solar flares, prominences etc. As determined by the number of sunspots, solar activity varies over an 11-year period. In this study, we examined the general distribution of thermosphere climate index (TCI) with respect to sunspot number during Solar Cycle 24 to obtain the pattern of thermal condition in thermosphere over the 11 years. Sunspot number, thermosphere climate index (TCI), mean temperature of surface air, and three latitudes, all obtained from NASA and NOAA, were used for this analysis. Our study found that sunspot number and TCI are directly correlated, meaning that low sunspot numbers during SC24 rising phase caused the thermosphere to cool off with low TCI readings and high sunspot numbers during solar maximum caused the thermosphere to heat up with high TCI levels. A low TCI reading of 0.25 W was recorded during solar minimum since fewer solar events penetrated the thermosphere, particularly magnetized plasma and radiation. At peak levels, Northern Hemisphere (NH) had a temperature anomaly of 1.6°C, Tropics had a temperature anomaly of 1°C, and Southern Hemisphere (SH) had a temperature anomaly of 0.6°C. Due to the lower sunspot number recorded throughout the 11 years, SC24 also happened to have the lowest TCI among many preceding cycles. There was a major correlation between the amount of plasma ejections during a specific phase and whether the thermosphere received much or little magnetized plasma. Along with SC24, mean temperatures for surface air and three latitudes also showed a gradual increase trend.
E-bike with photovoltaic panels for battery charging
Authors: Janiga P , Bendik J , Cenky M , Celeda M , Gasparovsky D , Novak T , Raditschova J 
Published: March 2023

Abstract
The experience in many cities shows that bicycles are one of the best vehicles of transportation in cities. They are ecological, require a small space, are not noisy, and contribute to the mental and physical health of the residents. The aim of the paper is to combine the idea of bicycle transport in cities, the potential of e-bikes, and innovative photovoltaic panels as a source of energy. In the created prototype, electric bicycle charging was tested using lightweight and flexible photovoltaic panels located on the bicycle frame. According to calculations and test results, this solution is sufficient for the normal operation of an e-bike under urban conditions. The results show that the e-bike with photovoltaic panels is a vehicle of transportation that uses only a renewable resource and is sufficient to move the normally required distances.
Design and development of mobile application based on proactive elements of safety culture framework for the oil and gas industry: a conceptual framework
Authors: Rahim H , Che Dom N 
Published: March 2023

Abstract
The integration process of the safety programme with technological development must adapt to the present level of the local safety culture in the working industry, which may change over time. Thus, this conceptual framework aims to design, develop, and evaluate a mobile application based on proactive elements of safety culture derived from research theories and factors identified in previous studies in the oil and gas industry. The Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA) will be utilised to review the relevant articles published within the last decade on safety culture in the oil and gas industry. The findings will be analysed using the Decision-Making Trial and Evaluation Laboratory (DEMATEL) to elucidate the general safety culture elements. The main reference in determining the influencing factors will be the reciprocal safety culture model. The significance of this study is reflected in the integration of utilising technology and effective safety culture components. The findings could be applied to catalyse an organisation’s efforts to improve the safety culture and delivery system.
Investigating causative factors and selecting optimal machine learning algorithms for landslide susceptibility assessment in Lom Kao area, northern Thailand
Authors: Poemsiritaweechoke G , Pondthai P 
Published: March 2023

Abstract
A landslide susceptibility map (LSM) is essential to determine the probability of landslide occurrence. The preparation of the susceptibility map is necessary to have reliable causative factors and an appropriately trained model. This study proposes a statistical feature selection of 18 landslide causative factors and a comparison of 15 machine learning algorithms’ performance to determine the optimal susceptibility model. To ensure that the factors are independent, the study uses statistical approaches, namely Pearson Correlation Coefficient and multicollinearity analysis. Based on the feature (causative factors) selection analysis results, the curvature factor was removed since it shows a high correlation with the plan and profile curvatures. Multicollinearity among all inferred factors has not been indicated. Moreover, the model fitting results show that the extra trees achieve the highest average accuracy score (ACC), with a value of 0.9859, followed by random forest (ACC = 0.9857), multi-layer perceptron (ACC = 0.9780), and decision tree (ACC = 0.9700).
Effect of recycled crushed bricks as additive in pavement material
Authors: Ismail N N , Ahmad J , Shaffie E , Wan Azahar W N A , Basri N K , Asri M A M 
Published: March 2023

Abstract
Recycling waste materials has gained its own demand and popularity especially in solving disposal problems, hence creating opportunity for researcher to study the advantage of using recycling materials in their products. This paper studied on the impact of indirect tensile strength(ITS) tests on the characterization of bituminous mixes. It focuses on the Marshall Mix design process to determine the optimum binder content in asphalt mixtures of Hot Mix Asphalt (HMA) with recycled crushed bricks (RCB). Samples were prepared with grading the natural aggregates and RCB according to the AC14 grading limit. At 160°C, the samples were blended with 4-6% bitumen content of grade 60/70 until uniformly mixed. Next, another 18 samples were prepared in accordance with Marshall optimization to analyse the performance of sample by conducting both dry and wet ITS test. 20% and 30% of RCB were added to replace fine aggregates of 1.18 mm to pan sieve. The result shows that the dry method gives a better result of ITS with 20% to 30% of replacement of fine aggregates with RCB. The average maximum load that can be load to the sample was 13.185 kN of load for dry sample whereas the wet sample with 11.23 kN of load.
Mycelium running of Volvariella volvacea on palm oil empty fruit bunch fibre following different substrate and mycelium treatment
Authors: Amir N F , Mohd Aris A , Mohamad A , Umor N A , Abdullah S , Mohd Yusof F Z 
Published: March 2023

Abstract
Leading the palm oil industry, Malaysia strives to become the powerhouse of palm oil producers. However, it is crucial that the industry does not influence the environment negatively in any way. Thus, reusing and repurposing palm oil residues in mushroom farming is one of the potential solutions for agricultural waste management. In this study, the objective of this study is to determine the mycelial performance of V. volvacea in palm oil empty fruit bunch (EFB) fibre as substrate and to evaluate the mycelial growth performance of V. volvacea in two different substrate treatment. The substrate treatment involved the non-treated EFB fibres (N substrate) and EFB fibres treated with 10% Calcium Carbonate (CaCO3) (T substrate), and mycelium treatment involved in gamma-irradiated mycelium (G sample) and non-irradiated mycelium (NG sample). Results shows that mycelium inoculated on treated EFB fibres exhibited a higher growth rate compared to non-treated EFB fibres. The full colonization days of mycelial run-on substrate using treated substrate was found reduced from 15 days to 9 days, as compared to the non-treated substrate. However, gamma irradiated mycelium was found giving no significant changes to the rate of mycelial run. In conclusion, substrate treated with CaCO3, increased the growth of mycelium. In future, it is suggested to measure the effect of irradiation using different gamma irradiation exposure.
Computational fluid dynamics study of Y3+-doped Ba(Ce,Zr)O3 based single channel proton ceramic fuel cell
Authors: Malik L A , Missnan M I , Hassan O H , Jani A M M , Rahman H A , Luengchavanon M , Osman N 
Published: March 2023

Abstract
Theoretical studies using Computational Fluid Dynamics (CFD) modeling have been established in the field of polymer electrolyte membrane fuel cells (PEMFCs) and oxygen ion solid oxide fuel cells (O2-SOFCs). However, its implementation in the proton ceramic fuel cell (PCFC) development is still in progress and very limited literature can be found. Thus, in this simulation study, ANSYS 2022 CFD software has been employed to predict hydrogen mass fraction distribution and power density of a single-channel PCFC operating in 100 % hydrogen fuel. This simulation utilized input data based on previously published experimental works. The mass fraction of H2 was 0.0 at the cathode area indicating that the electrolyte layer is fully dense and no leakage of H2 from the anode area into the cathode area. The maximum power density in 100 % H2 was 0.34 W/cm2 at 800° C. This is in agreement with the power density produced by the in-house fabricated button cell with the configuration of NiO-BCZY|BCZY|LSCF (BCZY=BaCe0.54Zr0.36Y0.1O2.95, LSCF=La0.6Sr0.4Co0.2Fe0.8O3-δ.) that showed a maximum power density of 0.33W/cm2 in 100 % H2. This analysis will contribute to insight information on the relationship between fuel mass fraction distribution and fuel cell performance for future improvements in the field of PCFC.
Upflow-outflow Zone Identification Based on Geochemistry Indicator and Fault Fracture Density Correlation Analysis in Mt. Gede Geothermal Case, West Java
Authors: Nayoan Arthur Gemas Pradhana , Pranatikta Krishna Agra , Anil  , Hendrasto Fajar , Yuniasih Sholikhatun 
Published: March 2023

Abstract
Upflow and outflow zones in a geothermal field are very important to identifying. These two zones are very useful in running a geothermal project such as simply in determining the drill point. Mt. Gede-Pangrango is one of the interesting geothermal fields in West Java province and is still included in the category the geothermal fieldwork (WKP) has not been further investigated which is the current research area especially on Mt. Gede. The method used to identify upflow-outflow zones is to correlate fault fracture density (FFD) analysis and geochemistry indicators with the early hypothesis that the geothermal upflow zone in the Mt. Gede is most likely located in the crater area to the volcanic body. Based on the FFD analysis, areas with high density of structural lineaments with a value of >2 km/km2 tend to have a southwest-northeast pattern that describes the direction of geothermal fluid flow due to the presence of a permeable zone (fracture) from the crater area of Mt. Gede (upflow zone) towards the foot of the mountain (outflow zone) the Cipanas area, which is also supported by the presence of the bicarbonate hot spring manifestation in the area. Then based on the geochemistry indicator (HCO3/SO4, Na/K, CO2 /H2S, and Isotope 18O), it can be seen that the upflow area is in the area of the volcanic peak to the body of the volcano and the outflow is at the foot of the volcano (Cipanas Area). From these two analyzes, it can be seen that the FFD and geochemical indicators are very well correlated in identifying the upflow and outflow zones of Mt. Gede and answered the early hypothesis that the upflow area tends to be in the volcanic crater area to the volcanic body of Mt. Gede.
Identification of Geological Structure Based on Gravity Method in Tangkuban Parahu Volcano, Bandung, Indonesia
Authors: Nurhasan  , Rizqia Muhammad Nadhif , Hidayat  , Setiawan Ahmad , Gumelar Fajar , Fitriani Dini , Sutarno Doddy , Mustopa Enjang Jaenal , Srigutomo Wahyu , Rusdiana Randi 
Published: March 2023

Abstract
Tangkuban Parahu Volcano, located in Cikahuripan, Lembang, West Bandung Regency, West Java, Indonesia, has a geothermal potential. However, this potential is accompanied by geohazard risks, one of which is a volcanic eruption that can interfere with the development of geothermal potential. On February 12, 2022, there was a gust of volcanic gas from Ratu Crater, indicating an increase in volcanic activity after an eruption in 2019. Based on the geological map of Tangkuban Parahu/Sunda Volcano Complex, it is estimated that there is a fault structure in a northwest-southeast direction, where if a volcanic eruption occurs, it will cause greater deformation because it cuts through Ratu Crater. Further studies with geophysical methods are needed to estimate the fault structure. The study of the subsurface geological structure of Tangkuban Parahu Volcano was carried out using the gravity method by studying variations in the gravitational field on the earth’s surface to determine differences in rock density. The Complete Bouguer Anomaly (CBA) value from the gravity method at Tangkuban Parahu Volcano shows 68 – 73 mGal, and residual anomaly values ranged from -0.95 to 0.67 mGal. The negative residual anomaly value between -0.95 to 0 mGal shows the weak zone due to volcanism in the crater. On the other hand, high residual anomaly values ranging from 0 to 0.67 mGal are interpreted as the influence of Lava 1 Tangkuban Parahu (Tl1). Analysis using First Horizontal Derivative (FHD) and Second Vertical Derivative (SVD) shows a fault structure trending Northwest – Southeast, which can be a way out of the accumulation of high-pressure water vapor due to volcanic activity.
Non-Destructive Evaluation of Oil Palm Fresh Fruit Bunch Quality Using Thermal Vision
Authors: Cherie D , Fatmawati N , Makky M 
Published: March 2023

Abstract
Oil palm (Elaeis Guineensis Jacq) is the main product of Indonesian agro-industry. It supports the country's economy. After harvest, the Fresh Fruits Bunch (FFB) should immediately be processed to extract the oil. Delayed will reduce the oil quality significantly. Nonetheless, due to poor road-conditions, the FFB often delivered to the palm mills beyond the acceptable time. To reduce the decrease of the fruit freshness, generally cold storage was applied. In this study, the FFB immediately freeze after harvest. Fruits stored at −20 °C, upon delivered to the mills. On arrival, acclimatization process was perform to restore fruit temperature before processing. A pseudo-color thermal vision used to monitor the fruits surface temperature continuously. Various fruits maturities observed in this study were: 120, 140, 160, 180, and 200 days after antheses (DAA). Temperature calibration was done by manually measured the fruit's surface using a thermometer. Models developed to correlate the actual surface temperature of fruits with pseudo-color displayed by the thermal-vision. Results showed the model of thermal vision correctly measured fruits temperature with R2 of 0.979, 0.973, 0.976, 0.976, and, 0.973 for stored fruits harvested at 120, 140, 160, 180, and 200 DAA respectively. The color of images on the camera can be used to observe the temperature of the fruits. The highest correlation obtained with redness index (R2 of 0.7677-0.8037), and the lowest is bluish index (R2 of 0.1101-0.561). FFB harvested at 180 DAA has the strongest correlation (R2) of temperature when observed by thermal-vision.
Influence of MXene, graphene nanoplatelet and multi-walled carbon nanotube on mechanical properties, swelling and flammability behaviour of hybrid sisal/glass fibre reinforced epoxy laminate composites
Authors: Bodduru Kamesh , Singh Lavish Kumar , Kassa Mesfin Kebede , Maddamsetty Amrita , Arumugam Ananda Babu 
Published: March 2023

Abstract
The research work aims to utilize one of the cheapest and most abundantly available natural fibre, sisal fibre, to fabricate a hybrid nanocomposite possessing high performance efficiency. Glass fibre (GFC), sisal fibre (SFC) and hybrid glass/sisal fibre reinforced epoxy laminate composites (HFC) were prepared and subsequently, three of the most promising nano-fillers, MXene (HFCMXN), Graphene nanoplatelet (HFCGNP) and Multi-walled carbon nanotube (HFCCNT), were added into the hybrid composite. The fabricated composites were comprehensively assessed and analysed for their mechanical properties, swelling and flammability behaviour. It was observed that the glass fibre reinforced composite had lowest void content (6.3%) and glass/sisal fibre reinforced laminate had the highest void content (17.2%). The addition of nano-fillers did not further enhance the void content owing to the relatively uniform dispersion of the nanoparticle, which was particularly ensured during the whole fabrication process. The incorporation of nano-fillers led to a significant enhancement in the mechanical properties; tensile and flexural strength being highest for composites containing two dimensional nano-fillers. The GFC exhibited minimum weight gain (2.25%) and least swelling thickness (1.66%) upon soaking. Among hybrid composites, nano-filler reinforced composites had relatively less weight gain post in comparison to the hybrid composite without any nano-filler. HFCGNP had a weight gain of 6.69%, as opposed to 8.51% observed in case of HFC. The nano-fillers acted as an effective water barrier that reduced the tendency of water absorption. Furthermore, upon flammability test it was found that the burning rate decreased in order of GFC, HFC, HFCCNT, HFCMXN, HFCGNP and SFC. The addition of nano-fillers led to a decrease in the burning rate owing to the promising flame retardant properties of graphene which suppressed flame propagation and helped in extinguishing the flame.