bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessing OPLS-based force fields for investigating the characteristics of imidazolium-based dicationic ionic liquids: A comparative study with AIMD simulations and experimental findings
Authors: Memar Zahra Ostadsharif , Moosavi Majid 
Published: December 2023

In this study, we extended the optimized potentials for liquid simulation-ionic-liquid virtual site (OPLS-VSIL) force field (FF) to imidazolium-based dicationic ionic liquids (DILs) and evaluated the ability of different OPLS-based FFs (i.e., OPLS-2009IL, 0.8*OPLS-2009IL, and OPLS-VSIL) in predicting different properties of the studied DIL by comparing their results with ab initio molecular dynamics (AIMD) simulation and experimental results. To achieve this purpose, MD simulations with three different OPLS-based FFs as well as AIMD simulation were performed for [C3(mim)2][NTF2]2 DIL and its structural, dynamical, vibrational, and volumetric properties were analyzed. Structural properties of the studied DIL, i.e., radial distribution functions (RDFs), structure factor, and hydrogen-bond network, showed that compared to 0.8*OPLS-2009IL FF, there is a much better agreement between the results of both OPLS-2009IL and OPLS-VSIL FFs with the AIMD simulation. On the other hand, the results of dynamical properties, such as mean square displacements, van Hove correlation functions as well as hydrogen bond, ion pair, and ion cage dynamics, depicted that in both 0.8*OPLS-2009IL and OPLS-VSIL FFs, the dynamics of the system is almost similar, and compared to OPLS-2009IL FF, they have better agreements with experimental results where they exist. So, it can be seen that although reducing the total charge of studied DIL by 20% leads to an increase in the dynamics of the system, the type distribution of partial charges on each atom does not significantly affect the system’s dynamics. The calculated infrared (IR) and power spectra showed that the vibrational features of studied DIL in three OPLS-based FFs are mostly the same and reducing total charge and different type distribution of partial charges have no significant effect on the studied system. Furthermore, in volumetric properties, OPLS-VSIL FF shows somehow better agreement with experimental results. Overall, the evaluation of different structural, dynamical, vibrational, and volumetric properties of [C3(mim)2][NTF2]2 DIL shows that the OPLS-VSIL FF may be the best choice among the different studied OPLS FFs.
Three-dimensional modelling of maximum fluid load on horizontally rotating cylinder
Authors: Jed Lim Li Xin , Ricardo Bernard 
Published: December 2023

Abstract
It is a well-known fact that when a rod coated with a viscous liquid such as honey is rotated at a sufficiently high speed, the liquid will stop draining. However, when the liquid is left on the rod for a sufficiently long time, fluid will accumulate in bands around the cylinder. When these bands reach a sufficiently large amplitude, the fluid will drain from the rod. While previous literature has explored the formation and growth of these bands, none has explored the conditions under which the fluid in these bands will drain. In this paper, we make use of linear stability analysis to find the growth rate of the band and hence, the time taken for the band to reach the critical amplitude before draining occurs. We verify this approximation with full 3D simulations. Afterwards, this is used to plot a phase plot to identify if the fluid is draining at a specific point in time. We come to the compelling conclusion that the inevitable formation of bands on the rod will invariably lead to fluid drainage. This has important implications for rolling-coating operations where a uniform fluid coating is required as the coating will need to be complete before the fluid accumulates in bands.
Revisiting the damped quantum harmonic oscillator
Authors: Barnett Stephen M , Cresser James D , Croke Sarah 
Published: December 2023

Abstract
We reanalyse the quantum damped harmonic oscillator, introducing three less than common features. These are (i) the use of a continuum model of the reservoir rather than an ensemble of discrete oscillators, (ii) an exact diagonalisation of the Hamiltonian by adapting a technique pioneered by Fano, and (iii) the use of the thermofield technique for describing a finite temperature reservoir. We recover in this way a number of well-known and some, perhaps, less familiar results. An example of the latter is an ab initio proof that the oscillator relaxes to the mean-force Gibbs state. We find that special care is necessary when comparing the damped oscillator with its undamped counterpart as the former has two distinct natural frequencies, one associated with short time evolution and the other with longer times.
Implementing the multistep adams-bashforth numerical approach on magnetohydrodynamic radiated casson fluid with darcy forchheimer, dissipation and activation energy
Authors: Salahuddin T , Awais Muhammad 
Published: December 2023

Abstract
The main goal behind the conduction of this work is to use the Adams-Bashforth method in the field of fluid dynamics to solve the Navier–Stokes equations based on the boundary layer flow of magnetohydrodynamic Casson fluid passing on the upper horizontal parabolic surface with variable fluid characteristics and Darcy-Forchheimer effect. The temperature flow rate and mass rate are also investigated with the help of thermal radiation, viscous dissipation, heat generation and activation energy. The Adams-Bashforth technique is widely used in numerical analysis, scientific computing, fluid dynamics, chemical kinetics, astrophysics and is particularly useful in solving the stiff ODEs, where other methods may fail to converge. It is particularly useful for simulating the flow of fluids around complex geometries, such as aircraft wings or turbine blade. The equations of basic governing laws (Momentum, temperature and concentration) are achieved in the form of PDE’s. These PDEs are then transmuted into ODEs via similarity variables and the numerical behaviors of these ODEs are obtained with Adam-Bashforth (Predictor-Corrector) along with RK-4 technique on the Matlab software. The initial guesses are modified by using secant method. Graphical analyses are used to explain how different parameters affect the temperature, velocity and mass transport rate. The finding of results revealed that the inertia coefficient, Hartmann number and fluid parameter make the decrement in the velocity field. The amplification in temperature of fluid is noted for varying the radiation coefficient, dissipation and thermal generation coefficient. The solutal field drops due to activation energy and reaction coefficient. The findings are useful to observe the flow attributes, behaviors and helpful in the designing of thermal equipment in the thermal industries.
Wobbling motion for a triaxial rotor plus a single quasiparticle*
Authors: Li 李 Si-Hua 嗣华 , Dai 戴 Hua-Ming 华名 , Chen 陈 Qi-Bo 启博 , Zhou 周 Xian-Rong 先荣 
Published: December 2023

Abstract
Wobbling motion in a system comprising a triaxial rotor and a single quasiparticle is studied employing the particle-rotor model. The energy spectra, wobbling frequencies, electromagnetic transition probabilities, g-factors, angular momentum components, spin coherent state maps, and static quadrupole moments are investigated. These investigations were conducted with regard to the Fermi surface transitioning from the lowest

orbit to the highest one. As the Fermi surface increases, notable transformations occur in the wobbling mode. Initially, the mode exhibits a transverse revolution around the short axis of the nucleus. However, as the Fermi surface continues to increase, the mode gradually shifts to a longitudinal revolution around the intermediate axis. Eventually, it transitions to a transverse revolution around the long axis. Notably, the stability of the long axis transverse mode diminishes relative to its counterpart along the short axis as the total angular momentum increases at

.
Become resilient and sustainable in pro-environmental: the role of theory planned behavior on food waste and responsible consumption
Authors: Gunawan Arie Indra , Huda Miftakul , Monoarfa Hilda 
Published: December 2023

Abstract
The dilemma between fulfilling consumption and sustainability aspects is very pronounced in developing countries like Indonesia. The large population and busy activities of the population mean that people’s consumption patterns are high, which puts them at risk of producing amounts of waste that are not environmentally friendly. This study explores insights into responsible consumption that occurs among people in Indonesia. Data was collected from 196 Indonesian consumer households. A five-point Likert scale was used in the research questionnaire. PLS-SEM is used to measure the structural model. The results showed that subjective norms, perceived behavioral control, and responsible consumption play an important role in household food waste behavior.
Achieving ecocentric environmental ethics through progressive law enforcement against illegal tin mining in Belitung Island
Authors: Haryadi D , Ibrahim  , Darwance  
Published: December 2023

Abstract
Historical records indicate that tin mining exploitation on Belitung Island commenced three centuries ago and has continued to the present day. Consequently, the mined areas are undoubtedly extensive, as are the resulting environmental impacts. Ideally, mining permit holders should adhere to environmentally friendly mining practices, including fulfilling reclamation obligations. However, the proliferation of illegal mining practices has become a pressing issue. Illegal mining operations tend to relocate frequently, causing environmental damage without undertaking reclamation efforts. These illegal mining activities, driven by economic interests, clearly reflect an anthropocentric perspective that disregards environmental considerations. Therefore, strategic measures are necessary to realize ecocentric-based mining, where the interests of all natural entities reach an equilibrium point. Progressive law enforcement aligns with the ethics of ecocentrism. This qualitative study aims to identify and formulate progressive law enforcement measures to achieve environmentally friendly tin mining on Belitung Island.
Reviewing the role of green open spaces’ feature in promoting physical activity
Authors: Khansa S M , Dewi O C , Salsabila N D , Viriezky V 
Published: December 2023

Abstract
The obesity rate in Indonesia has grown throughout the years and is close to the global obesity proportion. Indonesians are physically inactive and has a high proportion of overweight and obese people. It implies that sedentary behavior has long-term consequences, both for individuals and cities. Sedentary behavior is caused by several factors, including a lack of space and facilities that encourage physical activity. As public facilities accessible to various groups of users, green open spaces have the potential to promote a healthy lifestyle by encouraging physical activity. In the context of improving public health, an excellent green open space feature should provide space that is accessible to all groups and communities. This study examines how green open spaces’ feature in the Jabodetabek area encourages physical activity among its users and the possibility of impacts derived from community formation in green open spaces. Through methods of literature study, questionnaire survey, and analysis, it is found that green open spaces stimulate its users to walk more through the provision of adequate jogging tracks with annual shady trees. This finding can be used to create guidelines for the design features of green open spaces that promote a healthy lifestyle for the community and help decrease the obesity rate in Indonesia.
Synthesis of reduced graphene oxide based on rubber seed shells and rice husks and their composites using the modified Hummer method
Authors: Anwar D I , Khumaisah L L , Nurbaeti N , Hariyadi E R 
Published: December 2023

Abstract
Reduced graphene oxide (RGO) is a thin material, has a hexagonal two- dimentional lattice and is considered as an interesting material for many applications. This study aims to synthesize reduced graphene oxide (RGO) from rubber seed shells (RSS) and rice husks (RH) and their composites using the modified hummer method. The modification was done by replaceNaNO3 with H3PO4 so can eliminated of NO2 and N2O4 as toxic gas. RSS contains 48.64% cellulose and 21.60% lignin. Meanwhile, 38% cellulose, 18% hemicellulose and 22% lignin were contained in RH. Synthesis was carried out with three steps, that are synthesis graphite with calcination at 550°C, then graphite oxide synthesis using H2SO4 and H3PO4 (9:1) and KMnO4 as oxidator, finally synthesis of reduced graphene oxide (RGO) using ultrasonicated and Zn as reductor. Analysis of RGO sample was carried out through measured from XRD and FTIR. Based on results XRD analysis was obtained 2θ of RGO RSS, RH, and RRC respectively 23.5, 21.2, and 24.3° with crystallinity by 17%, 13%, and 10%. those results showing amorphous material properties. FTIR characterization shows change structure on RGO after reduction with loss of O atoms as well loss OH groups present in RGO.
Molecular identification of Pelawan Merah (Tristaniopsis merguensis Griff.) as an endemic plant from Bangka Belitung Island using chloroplast DNA rbcL gene
Authors: Saputri R , Arsyadi A , Valen F S , Wahyuni W 
Published: December 2023

Abstract
The DNA barcoding from this molecular identification will be submitted to the NCBI Genbank database to become a standard in the identification of Tristaniopsis merguensis Griff based on the rbcL gene analysis. This research will be used as a crucial information to identify the endemic species of Tristaniopsis merguensis Griff. which has no conservation status yet on IUCN Red List & Threated species. The stages of this research were collecting samples of Pelawan Merah leaves from Hutan Pelawan Namang, Central Bangka Regency. Molecular analysis was carried out to obtain the marker gene of Tristaniopsis merguensis Griff. The DNA barcoding of Tristaniopsis merguensis Griff yielded a 516 base-pair long sequence of rbcL gene. This is the first report of Tristaniopsis merguensis Griff DNA barcoding in Indonesia and the barcode has registered in the GenBank. This DNA barcoding also aims to register the plant biodiversity in supporting of the Barcode of Life (CBOL). Based on the results of BLAST DNA analysis, Pelawan Merah from Bangka Island has similarity up to 100% with Tristaniopsis sp. found in Australia. Furthermore, the phylogenetic tree analysis reveals that the Tristaniopsis merguensis Griff. in this study was very closely related to other species of genus Tristaniopsis. This suggested that the rbcL gene analysis could identify Tristaniopsis at the genetic level or higher and other DNA barcoding region analysis as Internal Transcribed Spacer gene was necessary to complete the Pelawan Merah identification.
The Use of Sentinel-1 Radar Burn Difference for Forest Fire Area Identification in Palangka Raya, Indonesia
Authors: Pongdatu DE , Bioresita F 
Published: December 2023

Abstract
Forest fire is a frequent disaster which happened in Palangka Raya, Central Kalimantan, Indonesia each year. On 2019, various fire incidents were happened in the area, affected human’s health due to the fire smoke. Monitoring forest fire burn areas become important in order to observe affected areas and for mitigation purposes. Active remote sensing is suitable for forest fire identification, since it can penetrate through fog, clouds and smoke, hence the identification is better than passive remote sensing. Nowadays, with the availability of Sentinel-1 SAR free data with medium spatial resolution and high temporal resolution, monitoring large forest areas can be done easily. Burn areas can be extracted from Sentinel-1 with one of burn area index, namely Radar Burn Difference (RBD). In this study, burn areas identification was performed using RBD and threshold method. VV and VH polarization was used in identifying burn areas. Towards the best identification, some threshold values were tested. The results showed that threshold of µ-1σ for RBD VH had the highest overall accuracy about 88% in identifying burn areas, compared with reference data. It means the result is accurate enough in presenting burn areas. The results show a 15,935.197-hectare burned area from RBD VV and 15,679.835-hectare from RBD VH.
Estimation of Sea Surface Topography Using Jason-3 Satellite Altimetry Across the Eastern Indonesian Seas in a period of 2016 to 2021
Authors: Handoko Eko Yuli , Syariz Muhammad Aldila , Wenda Pratama Janur 
Published: December 2023

Abstract
The measurement of sea level height relative to a fixed reference point, such as the geoid or mean sea level, is known as sea surface topography. There are a number of factors that affect it, such as undulation, sea surface height, and tides. Measurement of sea surface topography is very important to understand ocean dynamics. One of the factors that influences the dynamics of the sea is the flow across Indonesia. The Indonesian traffic flow is the mass flow of water from the Pacific Ocean to the Indian Ocean. The difference in pressure between the two oceans is what causes the flow. The purpose of this study is to provide precise information about the sea surface topography in the East Indonesian Sea region during the 2016–2021 period, which is required for various marine applications. This approach involves processing and analysing Jason-3 altimetry satellite data, which provides precise sea level elevation measurements. The data is then used to determine the value of the sea surface topography, which shows the spatial and temporal variations in sea level height in the region. The average sea surface topography value every month from 2016 to 2021 ranges from 1.05m to 1.30m, with the highest value occurring in January 2021 at 1.2542m and the lowest value occurring in February 2016 at 1.0498m. For the accuracy of processing results, data for 2016–2021 is used as training data for model estimation and 2021 as test data. The root mean square error value is 0.0762m. Changes in sea surface topography values tend to increase every year, except for 2019. The decline that occurred in 2019 was caused by the ENSO phenomenon, which had an effect of -0.807 on sea surface topography with an inverse correlation. The findings of this study provide important details about sea surface topography in Eastern Indonesian waters, which can be applied to enhance our understanding of ocean dynamics.
Ionospheric Disturbance in Indonesia during Solar Flare using GPS Observations
Authors: Wulansari M , Maulida P , Muslim B 
Published: December 2023

Abstract
Electromagnetic waves transmitted by Global Navigation Satellite System (GNSS) are delayed when they travel through ionosphere layer due to free electrons in that layer. This delay could be used to deduce the variation in ionosphere, through the quantity known as Total Electron Content (TEC). The variability of the TEC in the ionosphere is affected by solar activity, such as solar flares. When a solar flare occurs, which is characterized by a strong and sudden increase in X-ray intensity, it will result in an increase in the electron density in the ionosphere, which is known as ionospheric disturbances. The increase of electron in the ionosphere increases the absorption of HF radio wave energy which can also turn off HF radio communications and cause significant errors in GNSS measurements. This study observed the SID above Indonesia which was disrupted by a solar flare that occurred on November 8, 2013, with class X1.1 angstroms. We use the Sumatran GPS Array (SuGAR) station with observation epochs every 30 seconds to estimate the TEC. The results showed that there was a sudden and simultaneous increase of all observed satellites namely GPS PRN 2, 4, 5, 9, 10, 17, 24, 26 and 28. SID occurred at 11:25:30 LT with a TEC amplitude of 1.05 – 3.94 TEC Unit. The detection time of the SID corresponds to the solar flare’s time observed from the GOES satellite with a delay of ~5 minutes.
Analysis of GNSS/IMU Sensor Fusion at UAV Quadrotor for Navigation
Authors: Cahyadi M N , Asfihani T , Suhandri H F , Navisa S C 
Published: December 2023

Abstract
To determine the position and navigation of an unknown environment, UAVs rely on sensors that provide information regarding position, speed, and orientation. There are sensors to provide direct navigation information such as the Global Navigation Satellite System (GNSS) by providing position data, or indirect sensors such as inertial sensors which provide speed and orientation data. An inertial sensor or commonly known as an Inertial Measurement Unit (IMU) is a combination of data acceleration (accelerometer) and angular velocity (gyroscope). By performing GNSS/IMU sensor fusion at UAV Quadrotor will increase the accuracy of aircraft localization based on its mathematical model involving the Kalman Filter approach. The main goal is to improve the coordinates obtained from Quadrotor UAV measurements, so that position of UAV Quadrotor aircraft is more accurate. Raw data of sensors GNSS/IMU is obtained during the flight of the aircraft. Visual comparison is used to determine whether the coordinate of the processed data has better accuracy than the raw data. The results showed that the Unscented Kalman Filter (UKF) simulation gave 3D position accuracy of 0.403 m to the measurement data. It can improve 23,47% fprm EKF Estimation which give 3D position accuracy of 16.598 m.
Current deformation in eastern part of Java derived from GPS observation 2017-2022
Authors: Maulida Putra , Rafiq Muhammad , Herawati Yola Asis , Kurniawan Akbar , Taufik Muhammad 
Published: December 2023

Abstract
The eastern part of Java Island is a prone area with high seismic potential. Geologically, the seismicity in this area is dominated by the subduction zone in southern Java, reverse faults structure in the north extending along east to west part of Java Islands, and normal faults in Pasuruan and Probolinggo. Several studies have indicated the potential of earthquakes associated with these sources. The geodetic technique is employed to monitor the deformation activity in the eastern part of Java to understand the characteristics. We utilized the continuous GPS stations operated by Geospatial Agency of Indonesia (BIG) and processed them using the GAMIT/GLOBK software. The processing incorporates the IGS stations surrounding Indonesia. We also used precise orbit and 2nd-order ionospheric correction. The processing produces the velocity in the ITRF2014 reference frame, which generally indicates the south-eastward velocity up to 29 mm/year, mainly influenced by block rotation. Velocity referenced to the Sunda block shows a distinguished pattern between southern Java and northern Java. The velocity pattern in the southern part of Java tends to move northwest with a velocity variation of 3-6 mm/year, while several north stations show a velocity pattern to the south with a variation of 2-4 mm/yr. The strain analysis shows different patterns between eastern and western regions and different characteristics of southern and northern regions. Mainly the deformation is dominated by the compression due to the subduction in the south. Meanwhile, near to the central Java the deformation patterns significantly change due to the appearance of the east-west extension. The result indicates the different distinguished characteristics of the deformation source in the eastern part of Java. This result will have implications for seismic hazard analysis as a contribution to disaster risk reduction in the future.