bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of network security situational awareness in power information system security
Authors: Qi Lizhong , Zhao Chunhui , Yu Gao , Xue Jiarui 
Published: June 2022

Abstract
The increasingly complex network environment leads to more and more intense network attacks. Traditional firewall and intrusion detection technology cannot guarantee the network security of power information system, so network space situation awareness becomes the most important in the field of network security. Big data technology can be used to better understand the operation of the network, and different types of data for rapid analysis. Build a security situation awareness system framework that integrates data collection, data processing, data storage, data analysis and data presentation to filter out harmful data and ensure network security. In this paper, the basic concept and system framework of network security situational awareness are briefly introduced. Firstly, Flume and Kafka are used to obtain log or network attack information, and MapReduce and Storm technologies are used for batch or real-time analysis to achieve the perception of network security. Then, the analytic hierarchy process (AHP) is used to determine the index weight, extract the characteristics of the network situation, and complete the evaluation of the network security situation by analyzing and constructing the decision matrix. The system has the characteristics of high availability, scalability and easy deployment, which can better support the perception and prediction of various network security threats.
Optimal Design of Multi-Objective Parameters for Interference Fit of Motor Fan Pedestal based on ANSYS
Authors: Feng Yuan , Miao Jie , Zheng Libo , Wang Xingru 
Published: June 2022

Abstract
The motor fan is an important part of the motor, mainly responsible for the function of heat dissipation. The fan and the rotating shaft are connected by interference fit together. Under the working state, the fan not only bears the action of centrifugal force, but also the action of interference force, and the quality of its mechanical properties has a great influence on the life of the motor. In this paper, ANSYS Workbench is used to optimize the design of the interference fit between the fan base and the rotating shaft of the motor. The technology of finite element analysis is used to design the different structural parameter values, and to simulate and calculate the structural stress under various working conditions, when the criteria of the design are met, a satisfactory result is obtained to guide the design and development.
Failure Analysis of the Metal Hose Puncture and Leakage in a Natural Gas Reinjection Station
Authors: Song Enpeng , Jin Quan , Cai Ke , Liu Yangqin 
Published: June 2022

Abstract
The metal hose in the pump room of an oilfield natural gas reinjection station has multiple punctures and leaks. In order to analyze the reasons for the failures, a macro inspection, hydrostatic pressure and blasting test were carried out on a new hose of the same specification. Phase organization analysis, macro inspection, physical and chemical inspection, scanning electron microscopy (SEM), energy spectrum analysis, metallographic analysis and composition analysis of the conveying medium were carried out on the two failed hoses. The results show that the hydrostatic pressure test of the same batch of the new hoses of this specification meets the requirements of the standard, however the burst pressure does not meet the requirements of the standard. The failure is caused by the welding quality problems at the joint connection, welding defects such as weld bead, incomplete penetration and welding slag. The existence of deformation-induced martensite is found in the metallographic structure of the failed hose corrugated tube. There is tensile stress in the service environment, and a high content of corrosive medium Cl- in the conveying medium. Under the action of internal stress, the internal corrosive medium causes corrugation, the tube undergoes stress corrosion, thus initiating corrosion cracks and propagating along the grain boundaries, leading to the cracks and failure accidents.
Prediction of RBPs from sequence by means of genetic algorithm and nu-SVR
Authors: Li Wenjun , Yang Peng , Yanyan Ge 
Published: June 2022

AbstractPost-transcriptional regulation occurs at every moment in human’s body, so it makes the identification of RNA-binding proteins (RBPs) very important, because the RBPs are indispensable accessories to post-transcriptional regulation. Although many computational methods have been developed to replace the high-costly experimental methods, most of them run slowly and the result not well enough. Based on above factors, in this study, we propose a new method namely GASVR-RBP. Firstly, we extract features from protein sequences based on physicochemical properties and Pre-in-One web server, after the feature vector space constructed, we trained eight classifiers on 9857 protein sequences with the combination of genetic algorithm (GA) and nu-SVR, and by employing the ensemble strategy, we obtained an improved performance in three test set, the accuracy are 89.3%, 84.3% and 88.8%, which higher than Naive Bayes (NB) and Random Forest (RF). These results show that our method is effective for RBPs prediction.
A simplified and stable lattice Boltzmann shallow water model
Authors: Maquignon Nicolas , Smaoui Hassan , Sergent Philippe , Bader Bruno 
Published: June 2022

Abstract
In this article, a simplified and stable (S&S) lattice Boltzmann shallow water (LBMSW) model is introduced. In past articles, several types of LBMSW models based on different collision operators were studied, such as BGK-SRT, raw moments MRT, central moments MRT, or cumulants MRT, and allowed to reach interesting performances in terms of numerical stability, accuracy and execution time. But no simplified and stable model for LBMSW have been published yet, such as those for gaseous cases. In this article, such a method is introduced for shallow water problems and numerical performances are studied. For numerical performances evaluation, dam break and circular dam break benchmarks using S&S will be presented and compared to other methods.
Investigation of the Blockage Correction to Improve the Accuracy of Taylor’s Low-Speed Wind Tunnel
Authors: Al-Obaidi A S M , Madivaanan Ganesh 
Published: June 2022

Abstract
Placing a test model in the wind tunnel test section creates an interaction between the flow and the model and walls of the test section. This interaction affects the accuracy of data reading of the wind tunnel. One of the significant factors is the blockage which affects the drag and lift coefficients, causing inaccurate readings. This paper considered streamlined and blunted shapes of different sizes to investigate and assess the effect of the shape and size of the test model on the reading accuracy. Wind tunnel tests were conducted with the three different sizes for each shape to determine the aerodynamic coefficients of the models. Different correction methods were applied to find the correction coefficient. CFD simulations were performed using ANSYS Fluent software. A comparison of numerical and experimental results was carried out to determine the most suitable blockage correction method for the chosen models. It is found that a blockage ratio of less than 16% has the least blockage effect. The blockage correction of drag reduction for these models is very minimal, less than 1%. Correction coefficients for both shapes were derived to correct the blockage effect created by models with a blockage ratio of 16% or higher.
Novel adjustable platform for camera mount
Authors: Chen P S M , Tien D T K , Chung E C Y 
Published: June 2022

AbstractPan-tilt mechanisms are often used as adjustable camera mounts which can be automated if required. However, existing motorized pan-tilt mechanisms are unsuitable for heavy cameras. In this study, a novel mechanism from patent MY-175792-A was adapted as a camera mount to assess its suitability as a motorized support for heavy cameras. Unlike a ball head or pan-tilt mechanism, this adjustable platform tended to change its centre of rotation as it pitched. To ensure that its stability was not compromised, various lengths of cameras were mounted on it to study changes in the centre of gravity of the system as it was pitched and yawed to different angles. This study was conducted entirely through simulation. To facilitate a seamless pan-tilt motion, the force required to slide the active joint was determined through the analysis of static equilibrium. In addition, the required torque to yaw the mount was determined through motion analysis using SolidWorks. The design proved viable as a platform for heavy cameras. It also tended to provide a natural zooming and elevating effect for its pitch motion. Its structure was stable despite simulating the longest available TV camera being pitched and yawed on it to any angle.
Desiccant-based air dehumidifier and cooling system
Authors: Al-Obaidi A S M , Peterson S , Hui K J L N 
Published: June 2022

Abstract
Air conditioning system plays a vital role in providing convenient environment for human. Many studies conducted on the efficiencies of the air conditioners operating under vapor compression cycle (VCC), however, only few recent studies conducted to analyse the indoor humidity efficiencies. In this research, silica gel, zeolite, and molecular sieve as solid desiccants were experimented to observe their adsorption ability to identify the suitable desiccant material for dehumidification for air conditioner. It was noted that silica gel adsorbs 48% of water during the experiment making it to be the best adsorbent. The highest water adsorption capability by silica gel motivated this research to conduct numerical method to analyse its performance in the desiccant wheel system. The density, thermal conductivity, and specific heat capacity of silica gel used at the desiccant channel region on the geometry. The numerical results showed that the suitable regeneration temperature to reactivate silica gel is 35 °C with thermal effectiveness of 0.375. Silica gel has dehumidification efficiency of 85% and moisture removal capacity of 2.571×10−4 g/s. This system can be a potential trademark for HVAC industries to innovate pollutant-free systems because SDCS does not release any harmful coolants such as chlorofluorocarbon and hydrochlorofluorocarbon to environment.
Evaluation of Pupillary Distance (PD) Measurement using Smartphone-based Pupilometer
Authors: Husna H N , Fitriani N 
Published: June 2022

Abstract
Measurement of the pupillary distance (PD) is one of the important steps of the spectacles-making process. PD measurement can be done using the PD Ruler, Auto-refractometer, and smartphones’ apps. The study aims to evaluate PD measurement apps (Pupil Distance Meter Pro from Vistech Project, PD Pupil Distance for Eye Glasses and VR Headset from Glassify Me, and The Ultimate PD Rule) and compared them with Auto-refractometer as the gold standard. A total of 39 students (age 19-22) were involved in this study. The result of this study indicated that there was no difference between the measurement of the PD using the Glassify me app and the Auto-refractometer (p = 0.48). However, there was a mean difference of 0.2 mm between them. It could be concluded that the Glassify me app has the best accuracy compared to other apps (p value 0.48). This app was recommended to be used as an alternative to PD measurement.
Electroencephalography Signal Power Spectral Density from Measurements in Room with and Without Faraday Cage: A Comparative Study
Authors: Suwandi G R F , Khotimah S N , Suprijadi  
Published: June 2022

AbstractElectroencephalography (EEG) is a method for recording the brain’s electrical activity through electrodes placed on the scalp’s surface. This EEG has its problem, namely signal interference from outside the system or artifacts. Ways to eliminate this signal interference can be made in various ways, including handling signal sources outside the system or removing interference signals during the EEG signal processing process. One way is to isolate the measurement room from signal interference using a Faraday cage. In this study, we will compare the results of EEG signal processing in the form of power spectral density (PSD) from measurements in a room without a Faraday cage and a room with a Faraday cage. We find that the average value of the change in PSD from the measurement results in the two rooms had a level of difference that varied between 0.71%-66%. The location of the electrodes that have a high difference value is the frontal and parietal areas.
Statistical analysis of quantitative electrocardiographic signals with standard limb leads: Influences of gel use, subject positions, and electrodes configurations
Authors: Khotimah S N , Wahyuni F S , Haryanto F 
Published: June 2022

Abstract
An electrocardiogram records the heart’s electrical activity that provides helpful information on the cardio electrophysiological process. One cycle of cardiac contraction and relaxation produces the basic waves that consist of a P wave (atrial depolarization), a QRS complex (ventricular depolarization), and a T wave (ventricular repolarization). In this study, the quantitative electrocardiographic signals from six adult females aged 19 to 22 years in a relaxed state were measured using Cobra4 Electrophysiology with standard limb leads. Six conditions of the experiments were carried out for each subject to investigate the influence of gel use, subject positions, and electrodes configurations on electrocardiographic signals parameters: amplitude, duration, RRinterval, and correlation coefficient between two signals. It was obtained that the gel did not significantly influence the results for subjects when sitting but marginally influenced some electrocardiographic parameters for some individual subjects in lying positions. The subject positions influenced marginally for RRinterval. Electrode configurations are found to be related to the positive or negative deflection of the resulting electrocardiographic signals. All the measurements showed that two data sets of the ECG signals have a strong correlation for each subject in each condition.
Radiobiological Analysis of Radioiodine Absorption in Thyroid Cancer Therapy
Authors: Sudarso Y P D , Widita R 
Published: June 2022

Abstract
Thyroid cancer therapy using I-131 has already used widely to help ablate thyroid remnants, but many patients still not convinced whether this therapy really ablate thyroid or not and their distribution in the body, also about the effect of metabolic process on decreasing the exposure rate of the body so that patient can go home early. By exposure rate of the body and urine of the patient, will be determined the uptake percentage, absorbed dose, absorption rate, and washing out percentage that helped to determine the probability of radioiodine absorption in thyroid compared to other organs and effect of metabolic process on decreasing the body exposure rate of the patient. This research will be focused to prove that this therapy indeed being absorbed more in thyroid rather in other organs and by increasing the metabolic activity, the exposure rate of the patient will decrease faster which means that the treatment going faster and reduce the queue of this therapy.
Refining the Regional Aftershocks Catalog of the Ambon Earthquake Mw 6.5 on 26 September 2019 using manual picking and a non-linear algorithm: Preliminary Result
Authors: Kamaruddin B , Sahara D P , Halauwet Y 
Published: June 2022

Abstract
A destructive earthquake with magnitude Mw 6.5 occurred in Ambon, Indonesia, on 26 September 2019. This earthquake generated an aftershock sequence. In this study, we determined the location of the aftershock sequence using a non-linear algorithm from the Non-Linear Location (NonLinLoc) program. The catalog and waveform data were collected using 11 seismographs from BMKG regional network located around the Maluku archipelago. The data was recorded between 26 September and 18 October 2019. We have manually picked the P-and-S wave phase by using Seisgram2K software. In our preliminary result, we have located about 1,300 events of aftershock sequence with about 8,500 phases of P and S waves. Overall, the location of the focus depth of the aftershock sequence is dominantly distributed in between 5 - 25 km. Approximately ~70% of the distribution of aftershock locations show a North-South (N-S) oriented pattern from west Seram to Ambon Islands. Meanwhile, about ~20% of the aftershock’s locations are distributed around Ambon Island. Our ongoing and future study is to determine accurate hypocentre location derived from double-difference hypocenter relocation with waveform cross-correlation.
Gravity Forward and Inversion Modelling in Improving the Geology Model of the Flank Volcanic Structure
Authors: Laesanpura Agus , Telaumbanua Benyamin Oozatulo , Rahadinata Toni , Ekawati Gestin Mey , Sugianto Asep 
Published: June 2022

Abstract
Cross-sections of volcanic structures are generally constructed using existing surface rock data. The detailed subsurface is not accessible because of a limited approach; as a result, precision is less accurate. Geophysical data obtained from surface gravity measurements will improve this phenomenon based on the response of density variation through forward and inverse modelling. The joint interpretation will make it possible to improve the subsurface model and to apply it in volcano deposits that experience a throw. Gravity data acquisition is 200 points over an area of 16 × 14 square kilometres. An anomaly study will focus on near-surface phenomena, where modelling shows that inversion needs to be enhanced by mesh refinement. In addition, forward modelling renders the model more realistic. The results show, the fault reaches a half km. It is not seen in the geology section, and the density variation shows 0.3 grams/cc. This density change is interpreted for the pyroclastic in the depression segment. Fumaroles may interpret as the water percolating pathway from the peak through the flank structure. The meteoric water flows inside the volcanic deposits and the fault plane is the ends of the meteoric water reaching the outside.
Focal Mechanism Inversion on the Aftershock Sequence of the 25 October, 2010 Mw 7.8 Mentawai Earthquake: A Preliminary Result
Authors: Daniarsyad Gatut , Afnimar  
Published: June 2022

AbstractAn Mw 7.8 tsunami earthquake ruptured the shallow part of the Mentawai megathrust on 25 October 2010 and generated a large tsunami that hit the Mentawai Islands. The earthquake continued a partial rupture sequence of the 2007 Mw 8.5 and 7.9 Bengkulu earthquake and the 2008 Mw 7.2 North Pagai earthquake. The aftershock activity gives the opportunity to investigate the geometry of the subduction interface, which is critical to understanding the propagation and termination of a large earthquake. However, it is necessary to have a precise location and mechanism of the aftershock distribution to clearly image the fault geometry. In this preliminary study, we have applied the Cut-and-Paste (CAP) focal mechanism inversion method to 20 aftershocks (M ≥ 4.9) of the 2010 Mentawai earthquake. The seismic waveforms recorded by the BMKG broadband seismic network on the regional distance were used in the inversion. They successfully obtained ten focal mechanisms more than that provided in the GCMT catalog. The result exhibits a distinctly different thrust and normal faulting aftershocks activity. The thrust faulting aftershocks are mainly distributed in the downdip of the Mentawai 2010 mainshock rupture, indicating the stresses that have not been released during the mainshock. In the shallow region near the trench, the aftershocks are dominated by a normal faulting mechanism which shows the tensile stress caused by the bending of the subducting plate.
Love Wave Group Velocity Extraction Using Ambient Noise Tomography in West Java, Indonesia
Authors: Luthfiyani N , Rosalia S , Yudistira T , Widiyantoro S , Puspito A N T 
Published: June 2022

Abstract
West Java, Indonesia, is located in the northern part of the subduction zone between the Australian and Eurasian plates, with a complex tectonic setting and high seismicity level. In 2016, Institut Teknologi Bandung (ITB) and Australia National University (ANU) deployed 85 temporary seismometers to investigate this area. We constructed the shallow crust profile by applying the Ambient Noise Tomography (ANT) method to improve our knowledge of the tectonic condition in West Java. In this research, we used the north-south (NS) and east-west (EW) components to extract the Love waves Green’s function. We first rotated the NS and EW daily data series to obtain the transverse component. We then pre-processed the transverse daily data and applied cross-correlation to all station pair data. The daily cross-correlated data is stacked to obtain the Love waves Green’s function. The Green’s function in this study is clearly seen in the 1-25 s period band. The obtained Green’s function will be analyzed further to get the Love waves group velocity which then will be inverted to obtain the shear wave velocity (Vs) profile beneath the study area.
Evaluation of Atmospheric Correction Methods of Sentinel-2 for Monitoring Paddy Rice Growth in Cianjur and Klaten Regency
Authors: Muchsin F , Supriyatna  , Harmoko A , Prasasti I 
Published: June 2022

Abstract
Atmospheric correction is a critical pre-processing step required in quantitative remote sensing applications such as extraction of biophysical variables and multi-temporal analysis. The objective of this study was to evaluate surface reflectance of atmospheric correction methods base on scene-based empirical namely Dark Object Subtraction (DOS) and the radiative transfer methods namely the Second Simulation of Satellite Signal in the Solar Spectrum (6S). We applied these methods to Sentinel-2 images above rice fields in Cianjur and Klaten Regency, and compared surface reflectance from atmospheric correction methods with ground measured reflectance base on spectral response and vegetation indices (NDVI, EVI, SAVI and MSAVI). For that purpose, generative phase of rice growth was analysed by using statistical analysis. The result showed that the 6S method has better accuracy than DOS and varies on each bands.
Automatic Hyperbola Detection and Apex Extraction Using Convolutional Neural Network on GPR Data
Authors: Dewantara Daffa , Parnadi Wahyudi W. 
Published: June 2022

Abstract
Ground Penetrating Radar (GPR) is a non-destructive geophysical method used for subsurface mapping. It is frequently used for detecting buried cylindrical objects such as underground pipes and cables. Buried cylindrical objects show a hyperbolic signal pattern on a radargram. The typical shape of the hyperbolic reflections depends on the depth and material of the buried objects and the surrounding materials. In many cases, detecting buried cylindrical objects is quite a time-consuming task, thus limiting further interpretation procedures. In this paper, we propose a new method for automating hyperbola detection and apex extraction on radargram. Our work consists of two modules that take radargram as input in a form of images. In the first module, we used the Faster-RCNN to extract the hyperbola segments as a set of rectangular boundary boxes. The network was trained using synthetic radargram data simulated by the gprMax software. The second module is to estimate the coordinates of the hyperbola apex using an image processing technique. We had correctly detected all hyperbola on the simulated radargram from the test set. For the test on field radargram, the framework is capable of processing radargram that is similar to the simulated radargram data. The problem with the second module occurs on interference hyperbola as the searching window is disturbed by the noise. Apart from those problems, by using these two modules, the detection of buried cylindrical objects using GPR can be automated with a minimal amount of time.