bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Possibility of Detecting our Solar System through Astrometry
Authors: Wu Dong-Hong 
Published: September 2023

Abstract
Searching for exoplanets with different methods has always been the focus of astronomers over the past few years. Among multiple planet detection techniques, astrometry stands out for its capability to accurately determine the orbital parameters of exoplanets. In this study, we examine the likelihood of extraterrestrial intelligent civilizations detecting planets in our solar system using the astrometry method. By conducting injection-recovery simulations, we investigate the detectability of the four giant planets in our solar system under different observing baselines and observational errors. Our findings indicate that extraterrestrial intelligence could detect and characterize all four giant planets, provided they are observed for a minimum of 90 yr with signal-noise ratios exceeding 1. For individual planets such as Jupiter, Saturn, and Neptune, a baseline that surpasses half of their orbital periods is necessary for detection. However, Uranus requires longer observing baselines since its orbital period is roughly half of that of Neptune. If the astrometry precision is equal to or better than 10 μas, all 8707 stars located within 30 pc of our solar system possess the potential to detect the four giant planets within 100 yr. Additionally, our prediction suggests that over 300 stars positioned within 10 pc from our solar system could detect our Earth if they achieve an astrometry precision of 0.3 μas.
Understanding the differences in the effect of urbanization on land surface temperature and air temperature in China: insights from heatwave and non-heatwave conditions
Authors: Wang Nan , Chen Jiayue , He Tong , Xu Xinliang , Liu Luo , Sun Zongyao , Qiao Zhi , Han Dongrui 
Published: September 2023

Abstract
Accelerated urbanization and frequent heatwave events pose significant threats to human health. Analyses of the differences in air and land surface temperature (LST) under extreme climates can aid in understanding human-nature ecosystem coupling and the required adaptations to climate change. In this study, we quantified differences in urban and rural temperatures in China under heatwave (CHW) and non-heatwave periods (NHW) conditions and the influence of meteorological factors on these differences. Based on impervious surface data, 2421 urban and rural stations were dynamically classified from 2008 to 2017. Heatwaves were identified using relative thresholds, and differences were explored using meteorological data and MODIS LST data. For LST, urban–rural temperature difference (U-RTempdiff) was highest during the day, whereas air temperature peaks occurred at night, under both NHW and CHW conditions. During CHWs, the daytime U-RTempdiff was greater for LST than for air temperature, reaching 4.24 ± 3.38 °C. At night, U-RTempdiff was slightly lower (1.04 ± 1.41 °C). The proportion of air U-RTempdiff contributed by rural air temperature was significantly higher during CHW nights than during NHW nights, whereas the proportion of land surface and air U-RTempdiff remained relatively stable during daytime. Spatially, the daytime temperature difference in the north decreased with latitude, whereas the difference in the south was lower. Under CHWs, urbanization had a stronger effect on LST than on air temperature, with a slightly smaller difference (0.01 °C yr−1) during the day and a slightly larger difference (0.03 °C yr−1) at night. The contribution of urbanization to LST was higher than that to air temperature, particularly during the day (16.34%). The effects of wind speed and precipitation on the average air urban–rural temperature difference was greater than those of LST under CHW, accounting for 16.13%, with the effects of wind speed being more significant. These results show that a comprehensive perspective is needed to understand the risks associated with a temperature rise risk under extreme climate conditions and to formulate effective mitigation measures that will they improve human thermal comfort under climate change.
Identification of Shallow Fault with Seismic Refraction Modelling in Gondang Area, Bojonegoro
Authors: Rasif Nahari , Rachman Aditya Aulia , Mariyanto Mariyanto 
Published: September 2023

AbstractThere are various considerations in determining whether a field is said to have geothermal potential or not. One of them is the appearance of shallow faults in the area. This shallow fault can function as a permeable layer that is used as a fluid flow path in the geothermal system. Due to the emergence of manifestations around Mount Pandan in the Gondang area, Bojonegoro, seismic refraction measurements are also needed that can support and validate the geothermal potential in the area with the hope of shallow faults that are visible through the interpretation of seismic wave propagation velocity. This measurement produces an anomaly that is thought to be a shallow fault on the track that passes through the main fault, namely on tracks 1, 2, and 5, not far from the manifestation of the Banyukuning hot spring. This is also reinforced by direct observation of the surface conditions as a result of the appearance of shallow faults.
Geoelectric Analysis for Potential Slip Plane Interpretation in Labuan Bulan Hill, Salem District, Brebes Regency, Central Java
Authors: Dinata Indra A. , Praja M. Khalifah B.Y. , Sadisun Imam A. , Kuswanto Agus 
Published: September 2023

Abstract
Landslide is a natural disaster which often occurs in Indonesia. Based on National Disaster Management Agency (BNPB), there were 1,321 landslide incidents which occurred in 2021. Labuan Bulan Hill located on high susceptibility landslide seen from Landslide Susceptibility Zone of Brebes Regency, furthermore, soil tensile cracks presence with 5 - 50 cm width and 15 - 125 cm height at upper slope. In this study, the identification of subsurface lithologies and potential slip plane was carried out using geoelectric survey method with Wenner – Schlumberger configuration. The Wenner – Schlumberger configuration has deeper penetration than other geoelectric survey configurations. Geoelectric surveys are carried out on two lines with 240 m length and 5 m electrode space. Geoelectric line is made parallel and perpendicular with slope direction to estimate subsurface conditions easier with the help of tensile cracks presence in the surface. Results of measurements identified that the upper layer consists of poorly graded silty sand with 285 Ωm – 1700 Ωm resistivity, the second layer is a moderate - highly weathered volcanic breccia with 129 Ωm – 285 Ωm resistivity, and the third layer is fresh – slightly weathered volcanic breccia with 285 Ωm – 1388 Ωm resistivity. A fresh – slightly weathered volcanic breccia layer was identified as potential slip plane with 20 – 30 m depth.
3D Check shot Modeling for Time-Depth Conversion
Authors: Irawan Jefri Bambang , Triyoso Wahyu 
Published: September 2023

Abstract
Time-depth conversion is one of the keys to successful drilling with a specific target. However, if the drilling target is incorrectly defined, it can cause significant material losses. For example, several cases found that the hydrocarbon depth was deeper than the expected target. As a result, the well will be considered dry even though it still has hydrocarbon reserves. In this study, we intend to develop 3D check shot modeling in which check shot and formation marker data are referred to and taken at the well to obtain a precise time-depth relationship to overcome this problem. The well data with check shot available that can be used for velocity modeling, for the time-depth conversion process is very limited. However, in development fields with dozens or even hundreds of wells, the time-to-depth conversion process becomes a challenge where it is not enough when using one single velocity. In addition, the velocity model must accommodate lateral heterogeneity so the depth structure map can match the well formation markers. On the other hand, seismic data can indirectly measure subsurface velocities vertically and horizontally. This research combines well-check shot data with seismic semblance velocity data to build a velocity model calibrated by well data. The time-to-depth conversion process with the calibrated velocity model has an average residual of less than 5 meters compared to only using check shot data, with an average residual is 25-meters.
Delineation of Gas Sand Reservoir Prospect in the “A” Field, Deep Water Area of Kutai Basin
Authors: Wardaya P D , Novianto A , Pratiknyo A K , Hamdalah H , Rizkianto Y , Handini A M , Karimah A K , Nugraheni E S 
Published: September 2023

Abstract
Kutai basin hydrocarbon’s potential is not only in the delta area but extends to the deepwater area of East Kalimantan. The result of the integration method based on petrophysical, inversion, and seismic multiattribute aim to delineate the gas reservoir potential zone in the research area. The reservoir rocks consist of graywacke to sublitharenite of Upper Miocene sandstone with an average shale volume content 19%, porosity 23%, and water saturation 55%. The reservoir gas is reflected in the Vp/Vs ratio range of 1.58 to 1.8, the Poisson ratio value of 0.17 to 0.3 GPa, and the incompressibility value of 8 to 22 Gpa*g/cc. The distribution potential reservoir zone is indicated by the low acoustic impedance anomaly value of 4000 to 7500 m/s*gr/cm3, high RMS attribute anomaly value of 2000 to 10000, and distribution of low shale volume, high porosity, and low incompressibility will be estimated by using multi-attribute linear regression and probabilistic neural network methods that concentrated on the upper slope fan in the southern area.
Applying Map Filters and Inversion Model for Gravity Data in Matlab-based Application
Authors: Tsaqif Ghifari M , Fitrianto Fawwaz Byru , Raharjo Wiji 
Published: September 2023

Abstract
In general, there are two types of processes using the gravity method, that is the basic processes and the advanced processes. The basic process includes Gravity Meter reading conversion until the gravity corrections process. While the advanced process is a process to put an edge on the geological appearance of the research area that is already in the form of a map. The advanced process includes map filtering and inversion modeling. This advanced processing of gravity data is very useful, one of which is to separate regional anomalies and local anomalies, while inversion modeling is useful for knowing the approximate location of the anomaly depth. What will be applied to the software is advanced processing, because in its application this processing is required in every geophysical research and requires data processing support tools. However, for now, gravity data processing software, especially for the filtering and data modeling process is available as a licensed software. Where not everyone can access it because of limited costs and those who are still in the learning stage in lectures need practicing to process the geophysical data. The purpose of implementing this filtering process and inversion modeling is to provide access to gravity data processing for free and open source so that it can make it easier for students to process the data while practicing in the field, and in the future this software can be the basis for learning and development in the field of geophysical computing. This research was made using a descriptive method with a complete step and explanation of the creating and applying of the geophysical data processing into a software, so the detail processes inside it can be known. A literature study was also conducted to determine the basic formula that will be used as a reference in calculating gravity data in order to obtain the expected processing and modeling results. After that, the final step is to apply all of the components in a program to create a software based on MATLAB for the final result of this research. This software will containing map filtering and inverse modeling for gravity data which can be used for data processing.
The Early Model of Tomography in Eastern Indonesia Using FMTOMO
Authors: Wulan E P , Madrinovella I , Saputra R , Asyidah S N , Haqi Y S , Wijaya F C , Rosyid M A , Yasir M 
Published: September 2023

Abstract
Eastern Indonesia has a complicated structure due to the collision of the Eurasian Plate, the Pacific Plate, the Indo-Australian Plate, and the Philippine Plate, creating an active seismic zone. The Banda - Seram segment of eastern Indonesia comprises subduction, rollback, detachment, slab tear, back-arc thrust, and the Banda volcanic arc. Sri Widiyantoro did a previous study in Eastern Indonesia utilizing seismic tomography methods to detect the upper mantle and the 180-degree curved transition zone under the Banda arc. In addition, Robert Hall and Spakman’s research of the upper mantle revealed the existence of a spoon-shaped mechanism in the band arc. Seismic tomography modeling, this research seeks to identify the tectonic features in Eastern Indonesia, such as partial melting, subduction, slab rips, back-arc thrust, Banda volcanic-arc, detachment, and faults, and to establish the most suitable mitigation strategies. This study uses earthquake data from the Meteorology Climatology Geophysics Agency database (BMKG) and the form of P waves. In this research from 1 January 2016 to 31 December 2020, with coordinates 1 - 12 LS and 120 - 135 BT, there were 81 recording stations and 11299 earthquake occurrences consisting of 175643 P waves and 27338 S waves. This work applies the FMTOMO method to a seismic tomographic model. This research indicates that high-velocity anomalies characterize subduction to a depth of 650 kilometers. On Buru Island, the high-velocity anomaly is diagnosed as a slab tear at a depth of more than 400 kilometers. This research identifies a 100-kilometer-deep Back-arc thrust on Wetar Island that produces shallow earthquakes. In addition, a low-velocity anomaly at a depth of 70 kilometers - 90 kilometers is characterized as partial melting due to its parallel location with the Banda volcanic arc. This study examines the connection between subduction and intense seismic and magmatic activity in Eastern Indonesia.
Tomographic Inversion Code Analysis Using Regularization Iteratively Reweighted Norm (Irn)
Authors: Natasya B A , Rizkiyana A 
Published: September 2023

Abstract
Indonesia is an area located in the ring of fire, which was formed as a result of the interaction between four plates, namely the Eurasian Plate on the south, the Eurasian Plate on the, the Philippine Plate, and the Pacific Plate on the northeast. The interaction between these plates causes Indonesia to have many active volcanoes and experience many geological natural disasters. In the tomographic inversion process, ill-condition problems are often found in matrix making. Therefore, a regularization technique is needed to obtain a consistent result. The regularization technique can be done using Matlab software with a package called IR Tools (Gazzola et al., 2018). In this research, inversion techniques are used in the form of Least Square and Iteratively Reweighted Norm (IRN). This study aims to analyze the tomographic inversion code with the regularization technique using the Iteratively Reweighted Norm (IRN). In this study, two types of data were used, synthetic data and real data. Based on the results, it shows that using the Least Square method has better where the resulting checkerboard is more than adequate to reconstruct the initial velocity and amplitude model, which is described more clearly and strongly. Based on the results of the real data inversion, it shows that there is a low Vp anomaly (red) in the lower area of Mt. Merapi and Mt Merbabu. Low seismic velocity anomalies are associated with magmatic zones, partial melting, or magma reservoirs. However, there is also a high seismic velocity anomaly (blue) associated with the subduction zone of the Indo-Australian Plate to the Eurasian Plate.
Moment tensor inversion implementation in determining focal mechanism solution of Palu-Koro and Matano fault events: processing strategy
Authors: Kusumawati Dian , Sahara David P. , Puspito Nanang T. , Baskara Aria Widhi , Kurniawan Andri , Tanihaha Wahyu , Solihin Leonardo Junior Johan , Pratama Muhamad Diva , Patimah Sindi Hajah , Sasmi Annisa Trisnia , Muhammad Hilmy , Muhammad Hammam , Natafrisca Widjra Cyiena Christi , Bening Maulidia Ain 
Published: September 2023

Abstract
Earthquake focal mechanisms are helpful in analyzing seismotectonic features in a specific area, as they can depict subsurface structures. Earthquake focal mechanism solution can result from the first polarity or moment tensor inversion method. The moment tensor inversion can produce complete information of focal mechanism solution than the first polarity method. However, the procedure is slightly more complicated, for it is based on waveform inversion. Several problems related to signal processing might arise. Strategies should be applied to overcome the difficulties and obtain reliable focal mechanism solutions. In this study, we used moment tensor inversion to produce focal mechanisms data of Palu-Koro and Matano Fault events. We processed the focal mechanism of events with a depth of less than 60 km and with a minimum magnitude of Mw 4.7. The moment tensor inversion is conducted using Isolated Asperities (ISOLA) software. Full waveform inversion of stations located near Palu-Koro and Matano Fault is applied. The cause of waveform fitting difficulties using the data in this study area and the solution are discussed. For instance, the existence of unseen signal noise and clear-yet-disturbing signals are observed. Improved solutions can be achieved by station reselection and bandpass frequency adjustment.
Processing Receiver Function Data in Mentawai Region, Sumatra
Authors: Aldi M , Silaen N , Siregar I R , Dhaifullah D , Suhardja S K , Madrinovella I 
Published: September 2023

Abstract
The Mentawai Islands are located in the western part of Sumatra, in the Indo-Australian and Eurasian plate subduction zone. Because of these tectonic settings, the Mentawai Region has a high level of seismicity, making it particularly appealing for subsurface structure study. We used the receiver function method in this study to see response receiver function on plate subduction zone and compare the two deconvolution. This method uses the conversion of P-to-S waves, which have a larger amplitude in the radial component than vertical waves. The deconvolution technique is used to extract the two components of the receiver function signal. Water level deconvolution and iterative deconvolution were employed in this study. In practice, any deconvolution method cannot produce a suitable receiver function due to various methodologies that cannot be used in all conditions. Therefore, an evaluation is needed of each deconvolution method used to obtain the best results. This study utilizes two teleseismic stations located in the north and south of Mentawai, which were obtained through the IRIS website, and applied the Butterworth filter to obtain organized and noise-free data. The first results show that the water level is stronger than the iterative, which is more sensitive to the Gaussian filter width parameter. However, they produced almost identical results at both stations, precisely the arrival time of Ps, which was in 3-4 seconds and was followed by a low velocity.
The Adoption and Adaption of CEEQUAL’s Sustainability Attributes in Assessing the Malaysian Infrastructure Projects: A Review
Authors: Najib Nurul ‘Ulyani Mohd , Ghazali Farid Ezanee Mohamed 
Published: September 2023

Abstract
The rapid growing of urban populations has triggered the deterioration of natural resources and acceleration of climate change. Therefore, the development of sustainable infrastructure is playing an important role in order to minimize these issues. Generally, most of the sustainable rating tools are designed to focus on building projects only but not applicable to infrastructure projects. Specifically in Malaysia, there is limited studies have been done on the application of sustainable rating system to the infrastructure projects and literature also reveals that the Malaysian construction industry players still have little understanding on the sustainable infrastructure assessment. With these limitations, hence, this paper corresponds to fill the gap by exploring the sustainability attributes in assessing the infrastructure projects. In this paper, an extensive literature review was conducted to give an overview of several worldwide practical sustainable infrastructure rating tools and identifies the most important attributes for assessing the infrastructure projects, which is based on comprehensive and conventional reviews of considerable volume of published journals from 1993 until 2023 in the area of sustainable infrastructure rating system. Based on the best reference of CEEQUAL sustainability topic areas, the results of the review clarified that a total of 14 attributes like effects on neighbours, users, and the workforce; relation with the local community and other stakeholders; transport; material use; waste management; use of land; restoration of contaminated land; landscape issue; water environment; water resources; flood risk; historic environment; ecology and biodiversity; besides energy consumption and carbon emissions are identified as the relevant sustainability attributes for assessing the development of infrastructure projects in Malaysia.
Perception and Capacity of People with Disabilities Entering the Malaysia Construction Industry: Preliminary Findings
Authors: Majid Masidah Abdul , Osman Nurul Aini , Mohd Suhaimi Mohd Saifulnizam , Kamarudin Suhaida Suhana , Ashaari Norul Izzati M. 
Published: September 2023

Abstract
People with Disabilities (PWDs) seek the same chances and experiences as everyone else, yet due to a number of hurdles they are frequently excluded from fulfilling jobs. There are few statistics available globally to give an accurate knowledge of the number of workers with disabilities, and there is still a dearth of study on employment, disability, and construction, particularly in Malaysia. This study aims to determine the students and trainer at the Industrial Training and Rehabilitation Centre for People with Disabilities (PLPP) in Bangi, Selangor feel about participating the construction industry and their capacity to do so. It investigates how eager and capable students are to meet the requirements of IR4.0 in the construction industry. The interviews with 2 students who have physical disabilities, and 1 instructor are included in the data. These students are registered and classified as physical disability by the Malaysian Social Welfare Department. The interviews were transcribed verbatim. Extracting, grouping, and interpreting keywords or phrases into themes. The results show the PWDs have a high motivation to have an added-on skill in IR4.0 courses like drone, BIM and VR which will open bigger opportunity to enter construction industry. It also reveals that the participants have a basic skill of AutoCAD which shows that they able to perform a technical understanding.