bluuebunny/crossref_metadata_2025_split huggingface dataset:
Formation of Non-equilibrium Alloys Through Nanocluster Deposition: The Ag0.3Al0.7 Supersaturated Alloy
Authors: Pramanik S , Ghosh J , Barman P , Bhattacharyya S R , Mukhopadhyay M K , Chanda D K , Datta A 
Published: June 2021

Abstract
We present here results of soft landing 4 nm sized clusters of Ag from a nanocluster beam on Al for 5 mins and 15 mins. We have studied the samples after cluster deposition using X-ray Photoelectron Spectroscopy, Secondary Ion Mass Spectroscopy, and X-ray Diffraction. We have found that no Ag nanoparticles have formed, the Ag is not oxidised but the Al has undergone some hydrated oxidation. More important, we have established the formation of the supersaturated Ag0.3Al0.7 alloy with an fcc structure at ambient temperature and at Ag concentrations ∼ 0.1%-0.2% of the total atoms in the sample, for both the 5 min and 15 min irradiated samples, growing with the same orientation as the Al lattice, with traces of another phase suggestive of the hcp phase of Ag2Al. Interestingly, the crystallinity of the alloy in both cases is better than that of the Al lattice and they have a marginally lower strain. We have proposed an explanation of the strong tendency to form Ag-rich alloys by invoking a recently established structure of Al with very low bonding electron density localised at the tetrahedral interstices.
DSC, FTIR Studies of Borophosphate Glasses doped with SrO, Li2O
Authors: Thipperudra Anand , Manjunatha S , Pushpalatha H L , Prashanth Kumar M 
Published: June 2021

Abstract
A series of five samples of Borophosphate glasses doped with SrO and Li2O within the composition of 20(B2O3) + 30(P2O5) + x (SrO) + (50-x) (Li2O) where x = 10, 20, 30, 40 & 50. The Glass Samples were prepared by the melt quenching technique, and the samples were annealed to remove if any thermal strains present. Glasses were characterized by DSC studies in the temperature ranges from 423-673K to determine the glass transition temperature (Tg). Here Tg increases linearly with SrO mole fractions, the FTIR study shows the existence of different structural and functional group of B2O3, P2O5 such as BPO4, BO3 and BO4 units in the network. Borophosphate glasses containing SrO and Li2O, which exhibits different IR bands, related to SrO structural units.
On Indirect Excitation of Lateral Vibrations of the Table of the Electrodynamic Stand Suspended on Viscoelastic Shock Absorbers
Authors: Safarov I.I. , Teshaev M.Kh. , Nuriddinov B.Z. , Ablokulov Sh.Z. , Ruzimov A. 
Published: June 2021

Abstract
Modern machines and aerospace facilities are equipped with rather complex, multi-link high-level vibration protection systems. Therefore, it is of interest to carry out work on the formation of dynamic models of vibration-protective properties of the apparatus, taking into account the properties of their real design features. The plane-parallel motion of a viscoelastic suspended rigid body with an axis of symmetry and imitating the motion of the table of an electrodynamic stand is considered. In the calculated dynamic scheme, the action of the suspension membranes and the hanging shock absorber is represented as the action of some linear springs. It is assumed that a periodic perturbing force (the action of a pulsating magnetic field) directed vertically is applied at the body’s center of gravity. Nonlinear integro-differential equations of motion are compiled, in expansions of trigonometric functions and power series, only small second2 nd order are kept. The method of averaging is used to reduce to normal coordinates. The conditions for indirect excitation of axial lateral vibrations (torsional vibrations about the horizontal axis) under the stability of the parametric resonance of the vertical are obtained. Formulas providing the suspendet object are obtained.
Effect on Doping of EDTA on Structural, Optical and Mechanical Properties of KDP Crystal
Authors: Dholariya A M , Raval K G 
Published: June 2021

Abstract
Single crystal of Potassium Dihydrogen Orthophosphate (KDP, KH2PO4) pure and doped with EDTA (Ethylenediaminetetraacetic acid, [CH2N (CH2CO2H)2]2) have been successfully grown by slow evaporation method at room temperature with deionized water as a solvent with a aim to improve the properties of KDP crystal. The concentration of EDTA was 0.1mol%. The Energy Dispersive X-ray Analysis (EDAX) confirms the presence of EDTA in grown crystals. A tetragonal structure of crystals was confirmed and the value of lattice parameter was calculated by X–Ray diffraction (XRD) analysis. Optical energy band gap was determined by UV-VIS Spectroscopy. Raman Spectroscopy studies structural mode of bond in pure and EDTA doped KDP crystal. Microhardness of the crystals was measured with different dwell time and different load using Vicker microhardness tester.
A Comparison Study on Shape Parameter Selection in Pattern Recognition by Radial Basis Function Neural Networks
Authors: Tavaen S , Kaennakham S 
Published: June 2021

Abstract
This study investigates three choices of shape parameter selection when the so-called Radial Basis Function (RBF) is used. Under the problem of pattern recognition via RBF-Neural Network using RC-algorithm, three RBFs are focussed on; Gaussian (GA), Multiquadric (MQ), and Compactly-Supported (CS1). Two pattern recognition cases are tested and the best choice of shape parameter is validated using Model-Selection Criteria (MSC).
Propagation of Natural Waves on a Multilayer Viscoelastic Cylindrical Body Containing the Surface of a Weakened Mechanical Contact
Authors: Ishmamatov M R , Avezov A X , Ruziyev T R , Boltayev Z I , Kulmuratov N R 
Published: June 2021

Abstract
In this work, the study of the problems associated with the propagation of natural waves in multilayer viscoelastic cylindrical bodies with a weakened mechanical contact is discussed. A detailed analysis of well-known works devoted to this problem is given. A mathematical formulation, a technique, and an algorithm for studying the damping properties of natural waves in multilayered cylindrical mechanical systems with a weakened mechanical contact are developed. The solution of the considered problem was obtained by the method of separating the variables based on the theory of potential functions (special functions).The complex roots (phase velocities) of the dispersion transcendental equation for given wavenumbers are determined numerically by the Muller method. The phase and group velocities of a structurally heterogeneous mechanical system at various geometric and physical-mechanical parameters for the elements of the mechanical system are investigated. It was established that the real parts of the wave velocity will increase by only a few percent, and the imaginary parts for structurally heterogeneous mechanical systems radically change; the phase velocities (real parts of the complex velocity) of natural waves with an increasing wave numbers around the cylinder circumference of structurally heterogeneous mechanical systems first decrease and then begin to increase. A mechanical effect was discovered for structurally heterogeneous mechanical systems, which provides damping for the waves of the mechanical system as a whole.
Maximizing Common Data Rate of collection Tree in Energy-Harvesting Wireless Sensor Networks
Authors: Li-yong Yuan 
Published: June 2021

Abstract
Energy-harvesting wireless sensor network (EH-WSN) has the capability of capturing energy from environment and providing perpetual data services. In many applications of EH-WSN such as environmental protection, building monitoring, industrial internet of things, nodes are required to report sensed data to the sink with high common data rate to improve monitoring accuracy. In order to improve the common data rate of collection tree-based network, this paper studies collection tree construction for maximizing common data rate. We propose a collection tree construction scheme named hybridMCDRT which consists of a heuristic construction algorithm, an iterative optimization algorithm and “detour problem” elimination algorithm. The simulation results show that the proposed scheme can obtain higher common data rate than the existing methods.
Discovering Internet of Things (IoT) Applications for Health Monitoring During the Outbreak of Infectious Disease
Authors: Wei Yingjue , Gan Peiping , Chen Liangguang , Huang Guangyuan , Meng Dan , Huang Qiuju , Jiang Tao 
Published: June 2021

AbstractThis research aims to discover the Internet of Things (IoT) technologies and applications available for health monitoring during infectious disease outbreaks. Currently studies about IoT and health monitoring are reviewed to identify applications. Then we randomly selected 100 valuable comments from top five online shops’ using reports of Internet of things devices as the basis of the data analysis. Technology acceptance model (TAM) and familiarity and trust model1 (FTM1) were further conducted on these using reports to value why IoT technologies and applications is ‘perceived usefulness’ and ‘perceived ease of use’ used for health management. We found IoT applications are ready widely used in health management fields. There were significant positive advantages for ease of use. IoT applications were significant positive advantages for infectious disease symptom monitoring.
Research on Application of wireless Communication System in Middleware of Internet of Things
Authors: Li Yijie , xu Liqun 
Published: June 2021

Abstract
With the popularization of mobile communication technology and Internet of things, wireless data transmission operation occupies an important position. Massive data generated by the Internet of things system is applied to the Internet of things system by wireless communication network and wireless resource management. Wireless network communication technology is the use of radio waves for data transmission, is a new type of communication information system, for the future development of communication system has established the direction. The wireless communication system is introduced into the middleware of the Internet of things system to improve the security and reliability of the Internet of things and ensure the timely and effective dissemination of information and data in the Internet of things system.
Sensor deviation anomaly trend prediction based on phase space reconstruction and Support Vector Regression
Authors: Renjie Han , Dong Song , Yujie Li 
Published: June 2021

Abstract
Ship combat systems are developing in the direction of integration and intelligence, and the integration also brings problems such as difficulty in predicting abnormal sensor trends in combat systems. The failure characteristics of sensors in combat systems are highly secretive, and it is difficult to detect and deal with system equipment failures by relying on empirical qualitative or single-indicator testing methods. In order to safeguard the ship’s combat capability and make reasonable maintenance decisions, it is important to study more accurate prediction methods. This article proposes a method for predicting sensor deviation anomaly trends based on phase space reconstruction and Support Vector Regression(SVR), taking sensors in naval combat systems as typical research objects. Firstly, a phase space reconstruction is performed on the sensor deviation time series data to increase the accuracy of subsequent prediction; then a SVR prediction model is built, and the model is trained and optimised using the reconstructed data; finally, the constructed prediction model is compared with the regular SVR model and BP neural network model to verify that the constructed model has higher prediction accuracy.
A novel correction weighted localization algorithm for quadrilateral ranging
Authors: Zhang Yaling , Zhao Lishuai , Zhou Ran , Yuan Jiaozhi , Zhang Lijun , Yang Bo 
Published: June 2021

Abstract
Localization technologies based on received signal strength indication (RSSI) have been widely used in indoor localization, however, RSSI is disturbed by transmitted power of equipment, infinite interference source and so on. To overcome this drawback, this paper proposes a novel correction weighted localization algorithm for quadrilateral ranging. The algorithm uses Gaussian-moving average filtering (GMAF) to process the data and regularized least square estimation to estimate the parameters of the log-normal shadowing model. Then, a weighted correction factor is introduced to locate the target node. Finally, the simulation and experimental results verify the accuracy and robustness of the proposed algorithm.
Structural crack localization and identification based on FBG
Authors: Chen Yong , Chen Yawu , Jiang Tao 
Published: June 2021

Abstract
The current structural crack detection still suffers from the problems of single detection target, inability to achieve true acoustic emission crack signal separation, and poor portability of the sensing system. To address this phenomenon, in this paper, based on the use of fast blind source signal separation, combined with the designed structural crack sensing detection model, we will first coarsely localize the crack location area, and within this area, we will use the designed structural multi-crack parameter identification algorithm to achieve the multi-crack location identification purpose. The experimental results show that the proposed method achieves an average localization accuracy of 1.95 cm and a localization time delay of about 25 ms. It provides a feasible method for structural crack detection.
Characteristics and Analysis of fiber Fabry-Perot Force Sensor
Authors: Song Zengyu , Wang Ning , Zhu Yong , Wang Jiang 
Published: June 2021

Abstract
In this paper, a new optical fiber Fabry-Perot force sensor structure was designed based on the extrinsic optical fiber Fabry-Perot sensor. The sensor had the advantages of small size, high temperature and high pressure resistance, and had good resistance to strong electromagnetic interference. It can measure the friction force on the heat transfer pipe of steam generator in the harsh environment. The transmission characteristics of the sensor were analysed, and the performance of the sensor was simulated. Theoretically, the sensitivity of the sensor can reach 2.591 nm/N, and the minimum resolution can reach 11.309 N.
Density of condensates of two-component Bose-Einstein condensates restricted between two planar walls
Authors: Thu Nguyen Van , Song Pham The , Le Nguyen Thi 
Published: June 2021

Abstract
The density of condensates of a binary mixture of Bose gases restricted by two parallel planar walls is investigated within the framework of Cornwal-Jackiw-Tomboulis effective action approach in improved Hartree-Fock approximation. It results that the density of condensates strongly depend not only on the distance between two walls but also on the interspecies interaction strength and they are equal their expectation values of the field operators after adding a term associated with the quantum fluctuations.
Thermodynamic properties of Cu3Au alloy
Authors: Tan Pham Duy 
Published: June 2021

Abstract
Based on the general expression of the Helmholtz free energy of alloys with Ll2 structure obtained in previous works, we calculate the equations of the long-range order (LRO) parameter, and order-disorder transition (ODT) temperature in the Cu3Au alloy, and obtained thermodynamic quantities of Cu3Au alloy as simple functions of temperature and LRO-parameter, at pressures P = 0. Numerical results of the linear thermal expansion coefficient, isochoric and isobaric heat capacities, isothermal and adiabatic bulk modulus, are in good agreement with experiments.
The influence of confined acoustic phonon on the quantum Peltier effect in doped semiconductor superlattice in the presence of electromagnetic wave
Authors: Hung Le Thai , Quynh Nguyen Thi Lam , Anh Nguyen Thi Nguyet , Bau Nguyen Quang 
Published: June 2021

Abstract
Based on the kinetic equation method, the quantum Peltier effect has been theoretically studied under the influence of confined acoustic phonon in doped semiconductor superlattice in the presence of the electromagnetic wave (laser radiation). There were complicated dependences of the analytical expression of the Peltier coefficient (PC) on quantities such as doped concentration of the superlattice, amplitude of the laser radiation, the cyclotron frequency of electrons and temperature of the system. In detailed consideration, the quantum number m was changed in order to characterize the influence of confined acoustic phonon. When setting the m to zero, we obtained the results that corresponded to the case of unconfined phonon. The theoretical results have been numerically evaluated and discussed for the GaAs:Si/GaAS:Be doped semiconductor superlattice (DSS). We found the oscillation of the PC according to enhancement of cyclotron frequency of electrons. Moreover, position of resonant peaks has shifted under the influence of phonon confinement. In the case of low doped concentration (n D), the PC decreased in non-linear way; then it reached a negative constant in high n D value. The non-linear change of the PC also has been detected when investigating its dependence on the laser amplitude. All numerical results have shown that the magnitude of the PC decreased due to the increase of phonon confinement effect. In short, the confinement of acoustic phonon caused the change of the quantum Peltier effect in DSS of GaAs:Si/GaAS:Be in quantitatively as well as qualitatively.
Temperature dependence of the correlation function in EXAFS spectra: Application to Cu-Ag alloys
Authors: Duc N B , Tho V Q , Hiep T P 
Published: June 2021

Abstract
Correlation ratios between the mean square displacement (MSD), mean square relative displacement (MSRD), and correlated displacement function were studied in extended X-ray absorption fine structure spectra (EXAFS). The expressions of MSD, MSRD, and correlation function were determined using Debye models. Hardy problems due to many-particles effects were considered and replaced by a calculation based on the effective anharmonic potential, including the interaction of absorbing and scattering atoms with their nearest neighbours atoms. Based on the Debye-Waller factor, the difference between MSRD and MRD was analyzed, and their ratios have calculated. The methods were applied to fcc crystals and their alloys. Numerical results for Cu, Ag crystals and CuAg50 alloys agreed with experimental values and other studies.
Phase diagram of the half-filled Anderson-Falicov-Kimball model with Coulomb disorder
Authors: Yen Nguyen Thi Hai , Tuan Hoang Anh 
Published: June 2021

Abstract
We derive the electronic phase diagram of the half-filled Anderson - Falicov-Kimball model with Gaussian distribution for impurities and box distribution for Coulomb disorder via dynamical mean field theory combined with typical medium theory. We show that the metal and the Mott insulator regions shrink as the strength of Coulomb disorder increases. The influence of the difference distributions (the box and the Gaussian) for impurities is also considered.
Construction of dimeric hTSPO protein model using homology modeling and molecular dynamics
Authors: Lai Hien T T , Nguyen Toan T 
Published: June 2021

Abstract
A model for the dimeric form of the human TSPO (hTSPO) protein is constructed homologically using the RsTSPO dimer template. Then, Molecular dynamics simulation of 1μs is carried out on the model to investigate its stability as well as to study its various physicochemical properties. Our model shows good stability, with various important conserved residues involving in monomer–monomer interactions, in good agreements with available experimental data. Several functioning motifs are well demonstrated. This model hence can serve as a good basis for further study of this system as well as for discoveries of candidate radioligands targeting TSPO protein as a biotracer for medical imaging of brain inflamation.
The connection between ADT and evolutionary methods in product development
Authors: Soltész László , Nagy Szilárd 
Published: June 2021

Abstract
This paper presents similarities and connection points of Autogenetic Design Theory (ADT) and evolutionary methods. During a short historical overview, ADT is positioned in a timeline. The authors show where common issue points between the two approaches are. Then demonstrate how to use these methods, to avoid a long progress of iteration and tests of several versions and directions. Via an example study of truck floor design, benefits of evolutionary methods are highlighted and made understandable for readers.
Project Management Success Factors
Authors: Venczel T B , Berényi L , Hriczó K 
Published: June 2021

Abstract
There is a high need – especially in industrial organizations – to launch successful products and services. Therefore, it is crucial to understand what are the key factors in project success. The motivation of the research is to examine, if there is a model that can be applied to predict future project success; preferably in the automotive engineering and manufacturing environment. The paper aims to study project success literature and understand the differences and similarities between project success and project management success. Also, highlight the importance of the application of convenient models, to define success factors and link them with success criteria. Without a proper definition of success, success factors, and success criteria, the right success model cannot be chosen; therefore, the risk for an unsuccessful launch is higher. Applying a proper success model forecasts future project success. The first section of the paper introduces project success management, afterward literature review given differentiating project success, project management success, and success models. The overview highlights the importance of proper success factors and criteria definitions supported by success factor model application to increase the likelihood of successful project implementation.
Review of Mobility Scenarios Generators for Vehicular Ad-Hoc Networks Simulators
Authors: Boucetta Sara Imene , Guichi Youcef , Johanyák Zsolt Csaba 
Published: June 2021

Abstract
The most used technology for ITS (Intelligent Transportation System) is VANET (Vehicular Ad-hoc NETworks) which is a subclass of MANET (Mobile Ad-hoc NETworks).VANET enables wireless communication between vehicles as well as RSU (Road Side Units), by using the standard 802.11p channels bandwidth to transmit all sort of information to each vehicle, within the range of the communication, providing passengers with plethora of safety, comfort and traffic monitoring applications. These networks are characterized by the predictable motion nature of vehicles which allows to predict the future locations of the nodes. They are also known for their varying topology through time, due to the changing number of nodes and the lane-constrained mobility patterns and their reduced power consumption requirements. However, the implementation, deployment and testing of VANET implies significant cost and requires a huge experimental platform. Therefore, computer simulation seems to be one of the best alternatives to test VANET communication protocols, before their deployment. However, the correct simulation of these networks requires to have access to a large number of heterogeneous mobility and traffic scenarios. Several research works try to solve these issues by creating mobility models that tend to accurately generate trace-files, that reflect the true nature of road traffic motion. This paper reviews these existing solutions and the need to develop them into intelligent tools, capable of faithfully reflecting human driving behavior in computer simulation scenarios designed to accurately test VANETs.