bluuebunny/crossref_metadata_2025_split huggingface dataset:
Charge-state effects on charge transfer of helium ions in gold nanosheet
Authors: Sun Ya-Ting , Wang Feng , Pang Su-Na , Mao Fei , Li Chen-Guang 
Published: August 2023

Abstract
We investigate the charge-state effects on charge transfer of helium ions in gold nanosheet using the time-dependent density functional theory non-adiabatically coupled to the molecular dynamics. In order to characterize and extract the charge-state information of incident particles inside the nanosheet, we develop two novel computational methods. It is found that the charge transfer behavior of He ion in gold nanosheet is sensitive to its charge state at the time of incident. Analysis of these results allows us to gain new insights in the interaction between He ions and gold nanosheet. This work validates the ability of current methodology in dealing with ion collisions in materials.
Exact dynamics of multimode periodic input states in coupled waveguide arrays
Authors: Rai Atmadev , Rai Amit 
Published: August 2023

Abstract
In this work, we investigate the quantum state reconstruction of the periodic input state in a 1-D waveguide array. In particular, we consider a single-photon multimode entangled W-state with different periodicities as an input to the array and study the effect of periodicity in the output. For comparison, we also study separable single photon periodic input states. We study the evolution of average photon number and the fidelity of the periodic input state and give the exact solution to investigate the revival of single photon multimode periodic input. Our solution is valid for any number of waveguides in the array. Our findings show the revival of the average photon number and almost complete quantum state reconstruction of the initial multimode entangled state for certain periodicities. The results reported here are significant because multimode-entangled states are essential resources for various applications in the physical implementation of photonic quantum technologies.
Breather, soliton molecules, soliton fusions and fissions, and lump wave of the Caudrey-Dodd-Gibbon equation
Authors: Li Bang-Qing , Ma Yu-Lan 
Published: August 2023

Abstract
In this article, our attention is focused on the exploration of new features of the Caudrey-Dodd-Gibbon (CDG) equation arising from fluid mechanism. We introduce a constant in the transformation, which links the solution and auxiliary function defined in the bilinear form. By constructing different auxiliary function, we calculate the breather solution, one- to three-soliton solutions and lump wave solution. We report that a breather can be generated from a stripe-like soliton. We discover the soliton molecules and their interaction where the maximum amplitude will decrease as they overlap. Two types of heterotypic solitons, namely, soliton fusions and fissions are obtained by attaining their constrain conditions, respectively. We also observe this equation possesses several unique features, such as, having only the two-soliton molecules but not N (N ≥ 3)-soliton molecules, and having the line-like lump wave parallel to the x-axis but not to the t-axis.
Analyzing the atomic pair distribution function of BMT-based nanopowders via X-ray diffraction
Authors: Ghasemifard Mahdi , Ghamari Misagh , Iziy Meysam 
Published: August 2023

Abstract
In this study, we investigate the three-dimensional atomic structure of 0.65[Ba(Mg1/3, Ti2/3)]−0.35[BaTiO3] (BMT-BT) using x-ray diffraction (XRD) with molybdenum radiation (MoKα
1), Rietveld refinement, and the atomic pair distribution function (PDF) technique. We provide an analysis of the advantages of the PDF method for studying the unit cell of electroceramics. The XRD results show that BMT has a bulk crystal structure with a cubic perovskite structure. The new structural information enhances our understanding of the dielectric properties of BMT. The PDF analysis reveals that the average interatomic bond distance in the octahedral TiO6 atomic bond is around 2.8 Å, and the first peak at r = 1.39 Å corresponds to the nearest neighbor M-O distance (M = Ti, Mg, Nb). Additionally, the peak at r = 2.4 Å corresponds to the Ba-O and O-O distances in the MO6 octahedron. Peaks in the PDF data below 1 Å are ignored as they have no physical implications.
Small black string thermodynamics
Authors: Kumar Jyotish , Upadhyay Sudhaker , Kumar Sudhanshu Himanshu 
Published: August 2023

Abstract
We consider a cylindrically symmetric solution for the field equations of Einstein-Hilbert action with a negative cosmological constant in four dimensions. The small statistical fluctuation in the equilibrium thermodynamics of the black string solution is investigated. The small black string under the influence of small statistical fluctuation also follows the first law of thermodynamics. The behaviour of equation of states for black string changes significantly due to the fluctuation. The fluctuation causes instability to the small-sized black string only. Assuming the black string is fluid, the compressibility of the black string is inversely proportional to the fluctuation parameter.
Quantum Steering of Two Tavis-Cummings Atoms with Dipole-Dipole Interaction Under Intrinsic Decoherence
Authors: Khouja Youssef , El Allati Abderrahim 
Published: August 2023

Abstract
Asymmetric and hybrid steering, evaluated by entropic uncertainty inequalities between two identical atoms, is studied in the Tavis-Cummings model with dipole-dipole interaction (DDI) under intrinsic decoherence. The results show that phase decoherence stabilizes the direction during time decay. DDI coupling in the system enhances bi-directionality and stability by avoiding collapses and violations, from which the asymmetric and hybrid steering suffer, respectively. When intrinsic decoherence is introduced, the asymmetric direction becomes stationary when DDI coupling is weak. However, the hybrid direction tends to have the same characteristics when DDI coupling is strong.
Study of the catalytic activity of copper substrates coated with gold and silver foam in alcohol-alkaline media
Authors: Tarantseva K , Korostelyova A , Tarantsev K , Polyanskova E 
Published: August 2023

Abstract
The aim of the study is to find cheap catalysts for the oxidation of ethanol and the release of oxygen in alkaline alcohol fuel cells. The catalytic activity of gold-plated copper substrates coated with silver foam in an ethanol membrane-free fuel cell has been investigated. In this fuel cell, the phase interface between two highly alkaline immiscible liquids acts as a membrane. The highly alkaline medium allows the use of non-platinum catalysts, which, together with the absence of a membrane, can significantly reduce the cost of these fuel cells. It is shown that gold-plated copper substrates coated with silver foam have high activity compared only with gold-plated or only with silver-plated copper catalysts. The currents observed on the proposed catalyst are an order of magnitude higher than the currents on all other electrodes studied. The oxidation of ethanol on it also takes place at more negative potentials. Further stabilization of the silver foam is required due to its tendency to peel off from the substrate in order to successfully use this catalyst in this type of fuel cells.
Modeling and simulation of a 16.20 kWp on-grid solar Photovoltaic System (PV) using PVSyst at Malaysia
Authors: Kadir N A , Abdullah A Z , Mohd Hussin N N 
Published: August 2023

Abstract
Renewable energy is very useful alternative source to replace the usage of conventional energy. Solar energy is one of popular energy that has been utilised as its irradiance can generate electricity when strike with the photovoltaic solar (PV) panels. This paper presents a design and simulation of 16.20 kWp of 405W Si-mono PV system connected to the grid. It is very crucial to do the simulation in order to do the analysis in terms of performance, efficiency, power losses, irradiance and other related factors. The design, operation, and maintenance of new grid-connected solar PV systems may benefit from performance analysis. PVsyst is used as the design and simulation tools for the PV solar system simulation. It was developed by the University of Geneva as a pedagogical tool to explain in detail the procedures and models used, as well as to provide an ergonomic approach to project development. The site involves is Kampung Bukit Tinggi. From the simulation results, the array nominal energy is 25.81 MWh. The output inverter energy available is 21.59 MWh which fed to the grid. The performances ratio is 80.21% due to the several losses. This study may be useful for future grid-connected design and operation.
Comparative study of vibration energy harvesting on home appliances using piezoelectric energy harvester
Authors: Yazib M S A , Saudin N , Mohamed M A , Affendi N A M , Mohamed L , Mohamed H 
Published: August 2023

Abstract
This project was developed to harvest vibration energy using a piezoelectric energy harvester. The availability of home appliance vibration energy is a promising solution to get clean energy resources to manipulate wasted energy. When the appliances’ vibration hits the piezoelectric energy harvester surface, pressure is applied to the piezoelectric transducers and converts mechanical energy into electrical energy. The piezoelectric energy harvester’s efficiency depends on the availability of the home appliances’ vibration energy; thus, using multiple piezoelectric transducers in series generates more power. The piezoelectric’ alternating current (AC) output is fed to a Cockroft-Walton voltage multiplier (CWVM) to convert into direct current (DC) and boost the output. Four piezoelectric transducers connected in series have successfully produced a voltage of up to 4.7 V. Its output voltage can be harnessed to power low-voltage electronic devices.
Performance Evaluation of Bar Load Cell Sensing System for Soil Moisture Measurement
Authors: Saedin Nur Sakinah , Muttalib Muhammad Firdaus Abdul , Jusoh Mohd Fauzie 
Published: August 2023

Abstract
The open-source microcontroller Arduino is simple to program, erase, and reprogram at any moment. It is an open-source computing platform for creating and programming electronic devices based on basic microcontroller boards. In agriculture, soil moisture content must be monitored soil monitoring continuously to understand the relationship between soil moisture content status and plant water use to minimize under and over-irrigation. Current methods have a short lifespan due to possible corrosion on the electrode. In this project, we introduce a new indirect method for monitoring soil moisture, especially for soil in the container or pot, based on a low-cost bar-based load-cell sensor with an acrylic plate. This study’s objectives were to compare the number of bar load cell sensors that affect the soil weight and to formulate a calibration model to predict soil moisture content using soil weight. A model design of 10kg and 5kg bar-based load cell sensors will be used to compare the number of bar load cell sensors affecting the soil weight. The measurement result of each method was very similar and constant for the various positions on the design. There is no significant difference in average soil weight for any technique, and there is no difference in average soil weight for each sample. R2 values and the calibration equation were tabulated in Table 2.
A Quarter-Circled Multi-Resonator for UWB Re-transmission Based Chipless RFID
Authors: Mohamed G. B. W. , Hossain A. K. M. Z. , Aziz M. Z. A. B. A. , Azam S. M. K. 
Published: August 2023

Abstract
This paper introduces the design and analyses of a new planar parallel microstrip quarter-circled multi-resonator (PQMR) for the chipless radio frequency identification (CRFID) that works in ultra-wide band (UWB) frequency region. The proposed PQMR has identifying (IDing) and potential sensing capabilities to work as a tag-sensor. The PQMR works within 3.30 GHz – 6.53 GHz with a high -10dB quality-factor (Q10dB) of 692, a good spatial density of as low as 7.05 mm2/bit, very good spectral density of 7.33 bits/GHz and a coding capacity of 17 bit with one-bit sensing ability. Different combinations of coding bit streams are also extracted to show the identification ability of the proposed design. This will motivate the CRFID designers to design small and high-capacity tag- sensors for UWB applications.
DWT-BSS: Blind Source Separation applied to EEG signals by extracting wavelet transform’s approximation coefficients
Authors: Massar H. , Nsiri B. , Belhoussine Drissi T. 
Published: August 2023

Abstract
The Electroencephalogram (EEG) signal is widely contaminated by a physiological artifact, such as muscle activity, heart rhythm, and eye movement. The researcher has proposed a number of methods to clean the EEG signal. A group of these methods is called Blind Source Separation (BSS). In this paper, we suggest an approach that combines the BSS methods and the Discrete Wavelet Transform (DWT) algorithm, in order to evaluate the BSS methods after applying them to the approximation coefficients extracted using the DWT. The aim of this work is to identify which BSS algorithms, using which family of wavelet and at which decomposition level, would provide excellent performance. We used the Spearman Correlation Coefficient (SCC) to rate our methods. The technique that performs the best, as evaluated by the SCC between the generated component and the approximation coefficient obtained from the Horizontal EOG results, is AMICA, which obtains a value of 0.81 for levels 2 while using the wavelet symlet at scales 7 and 11. With a value of 0.70 and the use of the wavelet Daubechies at scale 9 and Coiflets at scales 2 and 5 for level 1, AMICA also has the best SCC value calculated between the separated component and the approximation coefficient recovered from the Vertical EOG. While employing the wavelet symlets at scales 5, 7, 8, and 11. for level 2, and level 3 when using the wavelet symlets at scales 1 and 2.
Dynamic characteristics of the rack and pinion lift mechanism of the combined command cabin
Authors: Chen Zhiqun , Wang Chao , Li Dong , Zhu Feng , Liu Yu 
Published: August 2023

Abstract
This paper presents a novel approach to accurately simulate the dynamic characteristics of a rack and pinion lifting mechanism while accounting for the coupling effect of meshing tooth pair stiffness and grease characteristics in real-world environments. A structure-grease coupling meshing stiffness model is established based on the deformation coordination conditions of the tooth pair meshing. The model incorporates the effect of the grease stiffness term on the time-varying meshing stiffness of the rack and pinion. By analyzing the dynamic characteristics of the combined command cabin lifting mechanism using this model, we find that the total meshing stiffness of the gear teeth is lower when the transient thermoelastic flow effect of the grease is considered. Furthermore, the total stiffness value decreases as the normal meshing force at the meshing point decreases. This research reveals that the worst lubrication conditions are typically found on the gear wheel teeth near the base circle, where the grease film temperature rise is highest, the grease film pressure is highest, and the grease film thickness is thinnest.
Microstructure evolution of magnesium alloy grid panel during press bending based on cellular automata theory
Authors: Wang Zhongtang , Liang Haicheng , Liu Yongzhe 
Published: August 2023

Abstract
Magnesium alloy integral panel parts is an important application prospect in the aerospace field. The cellular automata theory was used researching microstructural change law of Mg alloy panel during bending forming. The numerical simulation geometric model is established. The material properties and press bending forming parameters of Mg alloy panel are determined. Microstructure evolution of Mg alloy grid panel during bending forming is studied by numerical simulation method. The research results indicate that the microstructure of Mg alloy grid panel is effectively improved, and grains are significantly refined, with which the maximum refining degree is reaching 48.5%. With the increase in press height, the dynamic recrystallization degree is obviously enhanced, and grain size of grid panel part decreases accordingly. With the rise in bending forming temperature, grain size of grid panel increases slowly. In different positions of panel structure, the change of microstructure is different. Grain size is the smallest at intersection in grid panel ribs, and the grain size is the largest at the centre of the grid. The simulation results of grain size of Mg alloy grid panel using cellular automata theory are near to experimental results, and relative errors are less than 6.35%.
Mechanical Excitation of Large-scale Sprinkler Based on PWM Technology
Authors: Pan Shengquan , Huang Xiaolin , Chen Kai , Xie Yinshan , Mo Jinqiu 
Published: August 2023

Abstract
In order to improve the life of a variable displacement sprinkler irrigation machine, this paper establishes a finite element analysis model to analyze its mechanical excitation law. First of all, in the process of model selection, this paper selects the first span of variable sprinkler as the mechanical excitation analysis model based on the actual operation. Then, in the analysis and setting, the terrain difference is ignored, and the pressure values on the main water transmission pipeline of the first span are equal. Finally, the simulation experiment shows that the amplitude of mechanical excitation is positively correlated with the frequency and amplitude of pressure pulsation, and it is mainly when the valve is closed that caused by the pressure pulsation. It provides research support and direction reference for further weakening mechanical excitation.
An Improved Flower Pollination Algorithm based Modelling Method of Photovoltaic Modules
Authors: Li Xiaofeng 
Published: August 2023

Abstract
In recent years, with the acceleration of the global carbon emission reduction process, the sustainable development of clean energy has become the leading role, and the photovoltaic (PV) market has ushered in a hotter market. For accurately estimating the power generation of PV modules under different weather conditions, the modeling of solar cells or PV modules is very important. However, the conventional optimization algorithms cannot satisfy the accuracy of identification of the five parameters in the single diode model. In this paper, an improved FPA is proposed to estimate the five model parameters of the PV modules. In the proposed algorithm, the FPA is improved by considering different updating methods of solution for each pollen, with or without Levy flight. Experimental results validate that the proposed improved FPA can accurately identify the five model parameters and satisfy the modeling demands of PV arrays in engineering applications.
Impact Load Identification with Uniform Noise Based on Forward-backward Splitting Algorithm
Authors: Gao Wei , Zhang Bochen 
Published: August 2023

Abstract
In this paper, the forward-backward splitting method is introduced for the first time to solve the impact load identification problem under the condition of uniform noise in the field of structural dynamics. In the process of using this method to solve the problem of impact load identification, firstly, the load identification model is established. Then, the model is transformed into an optimization problem with infinite norm constraints by the maximum posterior estimation, and then the forward-backward splitting method is used to solve the optimization problem. The rationality and effectiveness of the forward and backward splitting method for load identification under uniform noise conditions in the field of structural dynamics are illustrated by numerical simulation examples.
Lightweight Design and Optimization of the Road Wrecker’s Loading Platform
Authors: Xu Shuaishuai , Zhong Shaohua , Huang Tao , Zheng Shihai 
Published: August 2023

Abstract
Aiming to realize the lightweight design of the road wrecker’s loading platform, an efficacious method combining material substitution and size optimization is proposed in this paper. The finite element model is established at first. According to the wrecker’s working process, two typical working conditions are determined. Following the proposed stiffness and strength judgment bases, the FEA of the loading platform is carried out under typical working conditions. Finally, on the premise of meeting the basic performance of the materials, the part thickness is reduced by replacing Q235 steel with Q460 high-strength steel. The optimal size is obtained after size optimization based on OptiStruct software. The improved results show that the total mass of the new loading platform decreased by 30.8% compared with the previous structure. The promoted structural performance meets the requirements, which verifies the practicability of the lightweight design method.
Stress Relieving Heat Treatment Technology of Oil and Gas Pipeline Based on Stress Detection
Authors: Xu Yan , Guo Lei , Liu Yinglai , Yang Fengping , Feng Zhenjun , Bai Qiang , Chang Yonggang , Nie Xianghui , Li Liang 
Published: August 2023

Abstract
Through heat treatment tests and the measurement of residual stress in oil and gas pipelines, the relationship between stress distribution and heat treatment is discovered in this study. The distribution rules of the tensile strength of the pipes under various heat treatment temperatures and heating temperatures were discovered by examining the tensile strength of the samples after heat treatment and the tensile characteristics of the pipes at high temperatures. Finally, it is suggested that the stress removal heat treatment temperature of the pipeline should be 350 °C and the holding time should be 3 hours. Through the research on the stress-relieving heat treatment process of pipelines based on stress detection and control, the service performance of the pipeline is not affected, but the residual stress caused by various reasons can be effectively reduced and the safe operation quality of the pipeline can be improved.
A Novel Method for Creating a Glass Insulation Layer on the Copper Antenna Surface
Authors: Wu Liangliang , Qian Yuzhong , Lv Xun , Liang Lizhen , Meng Xiancai , Wang Jichao , Hu Chundong 
Published: August 2023

Abstract
A method of generating glass insulation on copper antenna surfaces under low-temperature conditions was developed and validated. The method is not only capable of firing insulation layers on copper surfaces at temperatures below 1000 °C but is also suitable for both curved copper wires and flat copper sheets. In this method, a silicon dioxide (SiO2) based powder is mixed with water at a certain specific gravity to prepare a low-temperature glaze. The oxygen-free copper is polished, annealed, and pickled before being impregnated and glazed. After the glaze on the surface of the oxygen-free copper has dried, the sintering is carried out in an argon atmosphere. The resulting glass insulation layer has a high bond strength to the copper surface and few impurities. The present results are expected to provide useful attempts and examples of solving the problem of inter-turn insulation and sputtering on copper antenna surfaces, and they show the broad application prospects of this method.