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A multivariate reconfiguration method for rooftop PV array based on improved northern goshawk optimization algorithm Phys. Scripta (IF 2.9) Pub Date : 2024-02-28 Lingzhi Yi, Siyue Cheng, Yahui Wang, Yao Hu, Hao Ma, Bote Luo
Photovoltaic (PV) power has become a crucial solution to the escalating energy crisis. Among the various implementations, Rooftop PV power generation systems (RPVPGS) are predominant in PV buildings. However, RPVPGS will face challenges such as reduced output power due to array fault or shading, leading to fluctuations in Building-Integrated PV (BIPV) power generation. This paper attempts to solve
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Designing of high performance MoS2@VZnS//AC hybrid battery supercapacitor device for the electrochemical energy storage and glucose detection Phys. Scripta (IF 2.9) Pub Date : 2024-02-28 Muhammad Imran, Nabila Akhtar, Nimra Muzaffar, Amir Muhammad Afzal, Muhammad Waqas Iqbal, Samia Safdar, Aboud Ahmed Awadh Bahajjaj, Sohail Mumtaz, Mohd Zahid Ansari, Zubair Ahmad
Due to their high conductive properties and superior specific capacitance, metal sulfides exhibit remarkable electrical conductivity. Transition metal dichalcogenides (TMDs) are regarded ideal options for energy harvesting devices due to their unique 2D arrangement and remarkable electrochemical properties. In this work, the typical exfoliation method (tip sonication method) was used to synthesize
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Systematic study of two proton radioactivity within the effective liquid drop model Phys. Scripta (IF 2.9) Pub Date : 2024-02-28 N P Saeed Abdulla, M K Preethi Rajan, R K Biju
In this study, we investigated two-proton radioactivity using the effective liquid drop model with varying mass asymmetry shapes and effective inertia coefficients (VMAS-EFF). Gaudin’s expression term for Coulomb potential energy is replaced in the current study’s calculation of potential energy. The VMAS-EFF combination predicts the half-life with the lowest standard deviation ( σ =1.03) compared
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Propagation of collisional among multi-soliton, multi-singular solition and rogue wave around the critical values in an unmagetized plasma Phys. Scripta (IF 2.9) Pub Date : 2024-02-28 Shahrina Akter, M G Hafez, R Sakthivel
Progress in understanding the propagation characteristics of (i) collisional acoustic among multi-soliton and multi-singular soliton around the critical values and their corresponding phase shifts and (ii) collision between two rogue waves (RWs) propagating toward each in a plasma environment is presented. The considered plasma environment consists of mobile cold positrons, immobile positive ions and
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Nanomechanical-ferroelastics behavior, and the low-temperature ferroelectric manifestation of BiMnO3 thin films Phys. Scripta (IF 2.9) Pub Date : 2024-02-28 G V Umoh, A E Gómez-Ovalle, M P Cruz, J E Leal-Pérez, Okure U Obot, Héctor Urzola Berrio, Raúl Herrera-Basurto, F Mercader-Trejo, A Hurtado-Macias
Ferroelastic-nanomechanical behavior of BiMnO3 thin films on (100) Nb-doped SrTiO3 substrate is studied at the nanoscale, for the first time using the theories of depth sensing indentation and finite element analysis. This was to understand the redirection of polarization in ferroelastic behavior using piezoelectric direct effect and applying a controlled local force by nanoindentation. The values
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Investigating inorganic perovskite as absorber materials in perovskite solar cells: machine learning analysis and optimization Phys. Scripta (IF 2.9) Pub Date : 2024-02-28 Nikhil Shrivastav, Jaya Madan, M Khalid Hossain, Mustafa K A Mohammed, D P Samajdar, Sagar Bhattarai, Rahul Pandey
This work investigates the potential of inorganic perovskites AgBiSCl2 and Al2Cu2Bi2S3Cl8 as absorber layers in perovskite solar cells, followed by the application of supervised machine learning models. Extensive exploration and optimization of device architectures FTO/SnO2/AgBiSCl2/Spiro-OMeTAD/Au and FTO/SnO2/Al2Cu2Bi2S3Cl8/Spiro-OMeTAD/Au are conducted, involving variations in absorber layer thickness
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Analysing the suitability of CaTiO3/Ca1–xSrxTiO3/SrTiO3 perovskite for fabrication of optoelectronic devices using QuantumATK tool: a study for electronic and optical properties Phys. Scripta (IF 2.9) Pub Date : 2024-02-28 Sonia Chahar, Krishna Kumar Mishra, Rajnish Sharma
Calcium Titanate (CaTiO3) as a material has been researched for various applications like those in capacitors, piezoelectric devices and ceramic applications. Same has been possible owing to the exhibition of various characteristics of this material like high melting point (1,625 °C) and dielectric properties. However, only limited studies have been conducted to understand the impact of Strontium (Sr)
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Mechanistic insights of COVID-19 dynamics by considering the influence of neurodegeneration and memory trace Phys. Scripta (IF 2.9) Pub Date : 2024-02-28 Hardik Joshi
COVID-19 has been declared a global pandemic as it disturbs education, society, agriculture, the economy, poverty, death rate, social development, mental psychology, and many more. Neurodegenerative disease is a brain disorder associated with several pathological factors along with mental psychology. This paper introduces a mathematical model to inspect mechanistic insights into COVID-19 dynamics by
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Mathematical analysis of the solar assisted thermoelectric generator Phys. Scripta (IF 2.9) Pub Date : 2024-02-28 Princy Mishra, O P Singh, A K Katiyar
The direct conversion of solar energy into electrical energy is primarily dependent on the photovoltaic systems. However, in the last few decades, researchers have shown interest to work on the thermoelectric modules for direct conversion of solar thermal energy into electrical energy based on the Seebeck effect. This research paper provides a comprehensive analysis of various Solar Thermoelectric
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Temperature evolution of transverse magnetoresistance due to forming the topological insulator state in single-crystalline n-type Bi2Te2.7Se0.3 Phys. Scripta (IF 2.9) Pub Date : 2024-02-27 O Ivanov, M Yaprintsev, E Yaprintseva, T Nickulicheva, A Vasil’ev
Specific features in magnetotransport properties due to gradual forming the topological insulator state in sample of single-crystalline n-type Bi2Te2.7Se0.3 during its cooling were analyzed. The electrical resistivity of sample, measured from 2 K to 240 K, corresponds to partially degenerate semiconductor and dominantly depends on T-effect on electron mobility. The moblity is governed by electron–phonon
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A 5-D memristive hyperchaotic system with extreme multistability and its application in image encryption Phys. Scripta (IF 2.9) Pub Date : 2024-02-27 Qianqian Dong, Yulong Bai, Kailing Zhu
By coupling memristors to nonlinear circuits, more complex dynamical behaviors can be induced. However, to date, there has been insufficient attention given to high-dimensional chaotic systems based on memristors. In this paper, a magnetic-controlled memristor is combined with a three-dimensional chaotic system, resulting in a five-dimensional memristive chaotic system. Through dynamic analysis and
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Quadrupole-octupole collective excitations in medium mass nuclei Phys. Scripta (IF 2.9) Pub Date : 2024-02-27 R Budaca, A I Budaca, P Buganu
A quadrupole-octupole axially symmetric collective model is used to describe the alternate parity bands observed in even–even medium mass nuclei. The nature of the octupole correlations in considered nuclei is ascertained from the phenomenology of the adopted model and the obtained parameters. It is found that the model parameters have a regular evolution as a function of neutron number, suggesting
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High-efficiency light manipulation using a single layer of folded graphene microribbons Phys. Scripta (IF 2.9) Pub Date : 2024-02-27 Han Xue, Weihua Wang
Since its one-atom thickness, it remains an open question to enhance light–matter interactions in graphene, which is usually implemented through external resonant structures such as Fabry–Perot cavity. Here, we propose an alternative scheme to enhance light–matter interactions in a single layer of folded graphene microribbons (FGMRs), and remarkably, for normal incidences rather than oblique incidences
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Quantum transport on multilayer generalized scale-free networks Phys. Scripta (IF 2.9) Pub Date : 2024-02-27 Mircea Galiceanu, Walter T Strunz
We study single-particle quantum transport on multilayer generalized scale-free networks using the continuous-time quantum walk model. Our focus is directed at the average return probability and its long-time average value as measures for the transport efficiency. In the continuous-time model these quantities are completely determined by all the eigenvalues and eigenvectors of the connectivity matrix
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ReQUSA: a novel ReRAM-based hardware accelerator architecture for high-speed quantum computer simulation Phys. Scripta (IF 2.9) Pub Date : 2024-02-26 Sanghyeon Lee, Leanghok Hour, Yongtae Kim, Youngsun Han
Quantum computers are currently regarded as an emerging computing technology that can solve problems more quickly than classical computers. However, since constructing a general quantum computer is technically difficult, quantum computer simulation has been used instead of real quantum computers. Simulating quantum computers on classical computers is challenging because the time and resources required
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Radiation shielding effectiveness, structural, and mechanical properties of HDPE/B4C composites reinforced with Fe2O3-Al2O3-Al-Fe fillers Phys. Scripta (IF 2.9) Pub Date : 2024-02-26 A M Reda, R M Ahmed, M A Alsawah, Salwa H El-Sabbagh, A El Abd, W A Kansouh
The fast neutron and gamma-ray attenuation properties of pure high-density polyethylene and its composites were investigated, including 90 HDPE/10 B4C (wt%) and 60 HDPE/10 B4C/30X (wt%) (Where X represents iron oxide, aluminum oxide, iron, and aluminum). The examined samples were analyzed using a scanning electron microscope, and their mechanical properties were assessed. The composite of 60 HDPE/10
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A/B-sites disorder-induced relaxor phase transition and inhibit the grain size of BaTiO3 ceramic to enhance energy storage properties Phys. Scripta (IF 2.9) Pub Date : 2024-02-26 Afaf M Babeer, Abd El-Razek Mahmoud, Mohammed Ezzeldien
The present study introduces a strategy for improving the energy storage performance (ESPs) and enhancing the dielectric breakdown strength (DBSs) of BaTiO3 (BT) via breaking the domain structure caused by A/B –sites cations disorder. Lead-free [(Ba0.85Bi0.06Mg0.06)(Ti1−xZrx)O3] (abbreviate BT-BMZ) (x = 0.0, 0.025, 0.05, and 0.075) ceramics were used in this study. The substitution of isovalent (Ba2+)
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Nonequilibrium spinor exciton-polariton condensates in a magnetic field Phys. Scripta (IF 2.9) Pub Date : 2024-02-26 Ting-Wei Chen, Szu-Cheng Cheng
A complete-nonequilibrium model is proposed to investigate spinor exciton-polariton condensates (SEPCs) in a magnetic field. Due to the Zeeman splitting (ZS), the loss rates of two spin components in a magnetic field are distinct and affected by the magnetic field. Therefore, the individual spin component of a SEPC has its own threshold pump power. We investigate the ZS and degree of circular polarization
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Chemically exfoliated refined carbon from industrial tea waste for capacitive energy storage Phys. Scripta (IF 2.9) Pub Date : 2024-02-26 Ahmet Güngör, Gökçen Akgül, Feray Bakan-Misirlioglu, Emre Erdem
Graphitic carbon materials, renowned as favored energy storage materials, offer exceptional features such as a high surface area, customizable surface functionality, stability, and durability and have been extensively investigated. However, identifying highly efficient, cost-effective, sustainable, and environmentally friendly materials and sources is the predominant challenge. Abundant natural biomass
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SAR dynamical mechanism affected by diminishing marginal effect based on personal fashion psychology on multi-layer contacted network Phys. Scripta (IF 2.9) Pub Date : 2024-02-26 Yuemei Ren, Lei Li
People in complex systems exhibit varying capacities for social interaction because of differences in personal psychology, educational attainment, and social class. It is true that people often use different social networks and show different enthusiasm for obtaining information, but their interest in collecting information will decrease over time. Our study on Personal Fashion Psychology (PFP) has
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Non-singular complexiton, singular complexiton and complex N-soliton solutions of the new extended (3+1)-dimensional Boiti-Leon-Manna-Pempinelli equation Phys. Scripta (IF 2.9) Pub Date : 2024-02-26 Kang-Jia Wang, Feng Shi
The central target of this work is to extract some novel exact solutions of the new extended (3+1)-dimensional Boiti-Leon-Manna-Pempinelli equation (BLMPE) for the incompressible fluid. By applying the weight algorithm (WA) and linear superposition principle (LSP), we construct two sets of the complexiton solutions, which are the non-singular complexiton and singular complexiton solution via introducing
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Effect of transmutation rhenium on tensile properties of tungsten by molecular dynamics simulation Phys. Scripta (IF 2.9) Pub Date : 2024-02-26 Shulong Wen, Min Pan
The tensile properties of W-Re alloys are studied using molecular dynamics method. Two forms of transmutation Re uniform distribution and cluster distribution in W-Re alloys are systematically explored, W-xRe alloys and W-nRe clusters, respectively. The effects of Re concentration, Re cluster number density, and temperature on the tensile properties are discussed. Findings suggest that Young’s modulus
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Discrete-coordinate crypto-Hermitian quantum system controlled by time-dependent Robin boundary conditions Phys. Scripta (IF 2.9) Pub Date : 2024-02-26 Miloslav Znojil
A family of exactly solvable quantum square wells with discrete coordinates and with certain non-stationary Hermiticity-violating Robin boundary conditions is proposed and studied. Manifest non-Hermiticity of the model in conventional Hilbert space Hfriendly is required to coexist with the unitarity of system in another, ad hoc Hilbert space Hphysical . Thus, quantum mechanics in its non-Hermitian
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Designing high-performance polyaniline @MoS2@AC hybrid electrode for electrochemical–based Next-generation battery-supercapacitor hybrid energy storage device and hydrogen evolution reaction Phys. Scripta (IF 2.9) Pub Date : 2024-02-23 Mabkhoot Alsaiari, Muhammad Imran, Amir Muhammad Afzal, Sohail Mumtaz, Jari S Algethami, Farid A Harraz
Polyaniline (PANI), a conducting polymer, has attracted the attention of researchers as a potential candidate due to its higher capacitance and outstanding electrochemical reversibility. In this research, we used the hydrothermal approach to synthesize MoS2@PANI hybrid electrode material that may overcome the low cyclic stability of PANI. The composite material MoS2/PANI (with M/P-25/75 wt%) demonstrated
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Blind watermarking algorithm with 2D-SCCM chaotic system encryption based on SURF and RHFMs Phys. Scripta (IF 2.9) Pub Date : 2024-02-23 Chen-Chen Lu, Xiu-fang Feng, Lin Teng, Chun-peng Wang, Hao Zhang
In this paper, a digital watermarking algorithm was proposed based on local feature regions and radial harmonic Fourier moments. It used a quantized modulation algorithm to embed the watermark information into the frequency domain information of the image. Compared with traditional watermarks directly embedded into the pixel values, the algorithm enhanced the invisibility of the watermark. Many existing
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Deep ultraviolet applications of mono-bilayer boron nitride nanoribbons: a first-principles study Phys. Scripta (IF 2.9) Pub Date : 2024-02-23 Jiandong Hao, Ling Li, Ningqiang Shi, Zhenxing Liu
The optical properties of mono-bilayer boron nitride nanoribbons (BNNRs) on deep ultraviolet (DUV) region were calculated by adjusting the width, interlayer spacing and layer stacking. The band structure of monolayer BNNRs is sensitive to the width. DUV response also changes with the width, interlayer spacing and layer stacking in the mono-bilayer BNNRs. The N-N layer stacking can improve the reflectivity
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The geometry, electronic and magnetic properties of Zr n Ni (n = 2-14) clusters: A first-principles jointed particle-swarm-optimization investigation Phys. Scripta (IF 2.9) Pub Date : 2024-02-23 Yan Du, Yizhi Wang, Xu Ji, Xiuhua Cui, Haiming Duan, Haibin Cao, Qun Jing
Zirconium-nickel binary alloys and metal glass have superior performance like ultrahigh fracture strength, good toughness. In this paper, the structures of small-sized Zr n Ni (n = 2–14) clusters have been searched using the particle swarm algorithm in combination with density-functional theory (DFT). The geometrical configuration tends to form a three-dimensional structure as the number of atoms in
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A robust multi-chaotic remote sensing image encryption scheme based on RNA and immune algorithms Phys. Scripta (IF 2.9) Pub Date : 2024-02-23 Guoyan Li, Qianqian Xu, Lin Gao
Remote sensing images have been widely used in the military and other areas because of their rich perceptional data. This makes their visual security critical for practical usage. To address this challenge, an enhanced image encryption scheme is proposed. In the scrambling phase, n bands of remote sensing images undergo Arnold double-bit-level permutation. This reduces not only the pixel correlation
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A grating-modified broadband D-type photonic crystal fiber polarization filter Phys. Scripta (IF 2.9) Pub Date : 2024-02-23 Qianxu Wang, Fei Liu, Shuxia Yan, Zhipan Chen, Ailing Zhang
In this paper, a D-type grating-modified broadband photonic crystal fiber polarization filter based on surface plasmon resonance is proposed. The asymmetric design of D-type photonic crystal fiber is helpful to achieve single-mode polarization filtering, and grating can increase the coupling between the core mode and the SPP mode and thus increase the constraint loss. From our simulation results, it
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Analysis of the optical and electronic characteristics of Al/NiPc complex/p-Si diode Phys. Scripta (IF 2.9) Pub Date : 2024-02-23 Ö Güllü, U Efe, A Tataroğlu
The primary goal of this work is to explore how the introduction of the Nickel (II) phthalocyanine tetrasulfonic acid tetrasodium salt (NiTsPc) organic interlayer influences the performance of conventional metal/semiconductor diodes. Firstly, the optical features of the NiTsPc organic film formed onto glass substrate were investigated. For this, the UV–vis spectroscopic data were used to determine
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On the optical soliton solutions to the fractional complex structured (1+1)-dimensional perturbed gerdjikov-ivanov equation Phys. Scripta (IF 2.9) Pub Date : 2024-02-23 Samir A El-Tantawy, Haifa A Alyousef, R T Matoog, Rasool Shah
In this work, we examine the complex structured Fractional Perturbed Gerdjikov-Ivanov equation (FPGIE), which describes the propagation of optical pulses with perturbation effects. This model finds applications in optical fibers, especially in photonic crystal fibers. We are discovered novel and unique optical soliton solutions using the modified Extended Direct Algebraic Method (mEDAM), which has
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Exact theoretical solution and numerical study of thermal analysis of a type of nonlinear temperature-dependent material fin Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Qingyuan Xu, Changlin Hu, Shengwei Sun, Xi Wang, Yi Xu
As an essential part of many structures in engineering applications, the influence of fin is necessary. For this reason, studies on temperature fields and thermal properties of fin are essential. In the paper, based on the nonlinear temperature-dependent material, exact solutions for temperature distribution, heat transfer rate, efficiency, and effectiveness of fin are obtained by comprehensively considering
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Nonlinear vibration and amplitude ratio output performance of a resonant micro-gyroscope based on bifurcation detection Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Shuying Hao, Jiawen Li, Kunpeng Zhang
In this paper, we design a 3-degree-of-freedom (3-DOF) nonlinear resonant micro-gyroscope, which innovatively utilizes the bifurcation phenomenon of the nonlinear resonant beam as a detection method and uses the amplitude ratio before and after bifurcation as the sensitivity output of the system. The steady-state response of the driving equation is first solved by the complex exponential method. Coriolis
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Mn2+ doped SrSn(PO4)2 nanopowder for new novel LED material Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Y V K Suresh, K Josephus Alex Libnah, Ch Aswini, G Vasu, A V Chandrasekhar, R V S S N Ravikumar
In the current work, SrSn(PO4)2 with Mn2+ doped nanopowder was prepared by solid state reaction method at temperature 950 K. Mechanically, the equipped nanopowder was characterized by structural, spectral, optical, and luminescence investigations. Crystallite size, phase of the sample was explained by powdered XRD analysis. SEM and HR-TEM analyses provided information about the average particle size
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Theory of Burstein-Moss effect in semiconductors with anisotropic energy bands Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Vladimir Ivchenko
We study the peculiarities of the Burstein–Moss shift employing two-band model with an anisotropic valence band. There is a long wave tail which has a convex or concave shape depending on the ratio between the longitudinal and transverse hole masses. The width of this anisotropy-induced tail is temperature-independent and increases with increasing electron concentration and difference between the hole
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Highly sensitive Borophene-metal-Si based multilayered Terahertz frequency spectrum based refractive index sensor Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Abdulkarem H M Almawgani, Vishal Sorathiya, Umang Soni, Yahya Ali Abdelrahman Ali, Ahmad Alzahrani
We presented the numerical investigation of a multilayered borophne-metal-Si-based refractive index sensor for the wide range of the THz frequency. The proposed structure is worked for the frequency range of 1 to 15 THz. The structure is formed to identify reflectance variation, resonating frequency and other physical parameters over the broad frequency spectrum. The overall structure is simulated
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Probing the structural transformation of ZIF-L to ZnO for sustainable congo red dye removal Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Konthoujam Priyananda Singh, Boris Wareppam, Ningthoujam Joseph Singh, Subhadip Pal, Ningthoujam Somorjit Singh, Loushambam Herojit Singh
Severe water pollution due to industrial dye effluents has alarmed the scientific world to unravel a suitable technique and appropriate catalysts for dye removal and wastewater management. In the present work, the adsorbent capacity of ZnO was tuned by calcining ZIF-L, a class of Metal Organic Framework (MOF) at temperatures ranging from 300 °C–600 °C. XRD, FTIR, FESEM-EDX and XPS analysis shows the
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Improving the quality and properties of GaInSb crystal with Al doping Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Bowen Wang, Qiang Liu, Jian Liu, Chong Wang, Juncheng Liu
GaInSb crystal is a promising substrate material that can be used to prepare various high-performance devices. Ga0.86In0.14Sb and Al-doped Ga0.86In0.14Sb (Ga0.86In0.14Sb:Al) crystals were grown with the vertical Bridgman method (VB). The doping concentration of aluminum (Al) is 0.005–0.015 molar ratio. The effect of Al doping on the structure and properties of Ga0.86In0.14Sb crystal was studied. The
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Enhanced synergistic redox activity of SrCoS/PANI for hybrid energy storage and oxygen evolution reaction Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Haseebul Hassan, Muhammad Waqas Iqbal, Saima Akbar, Amir Muhammad Afzal, Ehtisham Umar, Saikh Mohammad, Asma A Alothman, Niaz Ahmad, Ehsan Elahi
Supercapacitors (SCs) and secondary batteries (SBs) are commonly utilized for energy storage, although each has some limitations: low energy density (Ed) and power density (Pd), respectively. To address these issues, a hybrid supercapacitor is a new emerging technique known as supercapattery, which combines both of these devices to optimum the Ed and Pd in a single setting. The hydrothermal method
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Coherent structures of beam-driven whistler mode in the presence of magnetic islands in the magnetopause Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 0000-0002-4334-7130Jyoti1jyotirani1506@gmail.com, Suresh C Sharma, R P Sharma
The Magnetospheric Multiscale Mission (MMS) has perceived whistler wave generation, coherent structures, and related turbulence close to the magnetopause reconnection zones. The current research examines coherent structure of whistler wave driven by an intense electron beam at the magnetopause’s magnetic reconnection sites as well as by the dynamic growth of magnetic islands. A nonlinear model of high-frequency
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Dynamic switching: vanadium dioxide and graphene-based terahertz perfect absorber for tunable broadband absorption and tri-band absorption Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Fangfang Liu, Yunping Qi, Li Wang, Yujiao Wen, Xiangxian Wang
In this paper, a dual-function switchable perfect absorber in the terahertz band is simulated and proposed. The design leverages the phase transition properties of vanadium dioxide (VO2) and the dynamically tunable properties of graphene. The absorber exhibits broadband absorption when VO2 is operated in the insulating state alone, with a bandwidth of 7.09 THz and a high modulation depth of 99.45%
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Design and implementation of the logic gates using electrically doped configurable polarity control double gate tunnel FET Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Arun Kumar Sharma, Girdhar Gopal, Tarun Varma
This paper designs and implements the basic logic and universal gates based on the proposed electrically doped, configurable polarity control double gate tunnel FET (ED-CPC-DGTFET). In contrast to the CMOS and MOSFET, the primary concern of the proposed device is to overcome the transistor count needed to design logic gates. A few compact realizations of logic gates have been reported earlier using
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Generation of optical cage arrays with tunable dark regions based on magneto-electric dipole antennas Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Zhixiong Xie, Yanzhong Yu, Yongxi Zeng, Musheng Chen, Qiwen Zhan
Optical cages have recently received extensive research and attention due to their potential applications in optical cloaking, microscopic imaging, and trapping particles or atoms. However, the creation of a controllable spatial multi-optical cage array with tunable dark regions comes with a great challenge, which limits the effectiveness of the above applications. To this end, we analyze the radiation
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Characteristics mode analysis based wideband Sub-6 GHz flexible MIMO antenna using a unique hybrid decoupling structure for wearable applications Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Deepthi Mariam John, Shweta Vincent, Sameena Pathan, Tanweer Ali
This article presents a compact flexible four-element multiple input multiple output (MIMO) antenna for Sub-6 GHz wearable applications. A wideband monopole antenna with a modified edge tapered radiator and a lowered ground plane is replicated to form a four-element antenna. The proposed antenna is fabricated on a flexible polyethylene terephthalate (PET) substrate and holds an overall dimension of
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Design and diversity performance analysis of C shape engraved miniaturised, and high gain Quad-Port MIMO antenna for 5 G and P2P communication Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Abdulkarem H M Almawgani, Sunil Lavadiya, Vishal Sorathiya, Adam R H Alhawari
The 4-Port multiband operated MIMO antenna operating at 4 GHz, 6 GHz and 9 GHz is proposed to target the 5 G and P2P communication applications. The electrical size of the 4-Port antenna structure is 0.8λ × 0.48λ. The unique shape of a single radiating patch element is identified by engraving a circular shape patch element and modifying the shape of the feedline. The optimisation in terms of return
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Entropic characterization of stabilizer states and magic states Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Huihui Li, Shunlong Luo, Yue Zhang
Quantum states with minimum or maximum uncertainty are of special significance due to their extreme properties. Celebrated examples are coherent states induced from certain Lie groups and intelligent states for various uncertainty relations. In this work, by virtue of the Maassen-Uffink entropic uncertainty relation, we introduce an entropic quantifier of uncertainty and use it to characterize several
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Black hole formation in gravitational collapse and their astrophysical implications Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Annu Jaiswal, Rajesh Kumar, Sudhir Kumar Srivastava, Megandhren Govender, Shibesh Kumar Jas Pacif
In this study, we have explored the process of black hole (BH) formation occurring in the collapse of a self-gravitating configuration using an innovative approach. The exact solution of the Einstein field equations is obtained in a model-independent way by considering a parametrization of the expansion scalar (Θ) in the background of spherically symmetric space-time geometry governed by the FLRW metric
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MOND via Matrix Gravity Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Ivan Avramidi, Roberto Niardi
MOND theory has arisen as a promising alternative to dark matter in explaining the collection of discrepancies that constitute the so-called missing mass problem. The MOND paradigm is briefly reviewed. It is shown that MOND theory can be incorporated in the framework of the recently proposed Matrix Gravity. In particular, we demonstrate that Matrix Gravity contains MOND as a particular case, which
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Quantum differential privacy under noise channels Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Ya-Ru Bai, Yuan-Hong Tao, Shu-Hui Wu, Hui Zhang, Shao-Ming Fei
Quantum differential privacy is a way to protect privacy in quantum computing. It perturbs the final state of quantum computing by a specific quantum noise channel and makes the output useless to the attackers, so as to achieve privacy protection. In this paper, we study the quantum differential privacy under three channels: bit flip channel, phase flip channel and depolarizing channel. We calculate
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Dynamics of cascading failure in cyber-physical power systems from cyber attack Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Lei Chen, Sijia Guo, Chunxia Dou, Hui Ge, Zihao Cheng, Shengquan Li
Through communication network, cyber-physical power systems can effectively monitor and control physical power grid, but this also increases the danger to systems from cyber attack. In this paper, we study the cascading failure triggered by cyber attack, which infects cyber nodes through malware and to endanger physical nodes through coupling links. First, the flow and topology models for cyber-physical
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Enhanced magnon blockade in a magnomechanical system Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Chun-Hui Li, Biao Xiong, Yue Wei, Chuan-Jia Shan
Magnon blockade is one of the effective methods for realizing single magnon sources which have great potential application in quantum information processing and quantum computing. To enhance single-magnon blockade effect, we introduce a two-magnon driving to the magnomechanical system, which is used to form the multipath destructive interference. Our result shows that both the conventional magnon blockade
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Exploring exact solutions for physical differential models through generalized derivatives Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Abd-Allah Hyder, Mohamed A Barakat, Ahmed H Soliman, Areej A Almoneef
In this study, we develop three well-known fractional differential physical models with novel exact solutions. Liouville, Dodd-Bullough-Mikhailov (DBM), and Sinh-Gordon equations are the models under consideration. These models will be broken down into three nonlinear ordinary differential equations using a waveform transformation, which can be precisely solved using the approach of the simplest equation
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Low-frequency acoustic edge modes based on a triangular maze Phys. Scripta (IF 2.9) Pub Date : 2024-02-22 Xiao Liang, Jiangxia Luo, Jiaming Chu, Haofeng Liang, Daxiang Meng, Zhi Zhang
For several years, acoustic topological insulators have received attention due to their unique ability to manipulate acoustic waves. However, acoustic wave manipulation due to acoustic topological insulators is based on Bragg scattering. This results in the wavelength being bounded by the lattice constant. In this paper, a new ultra-low frequency acoustic topological insulator structure is proposed
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Elucidating the impact of Dy2O3 substitution on structure, optical, photoluminescence and mechanical properties of borosilicate glass Phys. Scripta (IF 2.9) Pub Date : 2024-02-21 A S Abouhaswa, H M Abomostafa, M H Nasr, E A Rabiea
This work aims to investigate the changes in characteristics seen in the composition 60B2O3+ (30–x) BaO + 10SiO2 + xDy2O3 where x is 0.0, 1.0, 2.0, and 3.0 mole% glass samples. Melt-quenching technique was used to prepare the glass samples. A variety of analytical techniques were employed to characterize the prepared glasses, such as x-ray, Raman, photoluminescence, and UV-vis-NIR spectroscopy. XRD
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Microdischarge dynamics of volume DBD under the natural convection airflow Phys. Scripta (IF 2.9) Pub Date : 2024-02-21 Y A Ussenov, A I Ashirbek, M K Dosbolayev, M T Gabdullin, T S Ramazanov
The dielectric barrier discharge (DBD) at ambient air conditions exhibits discrete structure and contains thin microdischarge plasma filaments. Understanding the formation, self-interaction, and dynamics of such filaments is crucial towards the generation of uniform diffuse-like DBD in air, and also for the study of the memory effects and self-organized complex patterns. In this paper, the impact of
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A machine learning approach to predict the efficiency of corrosion inhibition by natural product-based organic inhibitors Phys. Scripta (IF 2.9) Pub Date : 2024-02-21 Muhamad Akrom, Supriadi Rustad, Hermawan Kresno Dipojono
This paper presents a quantitative structure–property relationship (QSPR)-based machine learning (ML) framework designed for predicting corrosion inhibition efficiency (CIE) values in natural organic inhibitor compounds. The modeling dataset comprises 50 natural organic compounds, with 11 quantum chemical properties (QCP) serving as input features, and the target variable being the corrosion inhibition
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A comparative study of reduced graphene oxide synthesized through different techniques for UV-C radiation detection application Phys. Scripta (IF 2.9) Pub Date : 2024-02-21 G Shruthi, Kruthika SM Reddy, Anshika Garg, Baishali G, K Saara
In this work, reduced Graphene oxide (rGO) is synthesized through three different chemical routes of synthesis and they are used for the fabrication of UV radiation detectors working in the 100–280 nm range. The fabricated device is a Silicon based radiation detectors with these different synthesized samples of rGO as the sensing material. The photon detector has an architecture of a field effect transistor
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Defects induced changes in conduction bands of HfS2 Phys. Scripta (IF 2.9) Pub Date : 2024-02-21 Yu Lin, Shaozhu Xiao, Xin Zhang, Wei Liu, Yunpeng He, Zheng Zhou, Xiufu Yang, Shiju Zhang, Shaolong He, Yanfeng Guo, Yong Zhao
We report on a comprehensive study of the electronic structures of the layered semiconductor 1T-HfS2 by employing angle-resolved photoemission spectroscopy (ARPES). With in-situ potassium doping, the band structures of HfS2 could be tuned, and both of the valence band and the conduction band could be observed. S vacancy defects could be induced by post-annealing of HfS2 and a certain amount of S vacancies
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Tackling the inverse problem in ellipsometry: analytic expressions for supported coatings with nonuniform refractive index profiles in the thin film and weak contrast limits Phys. Scripta (IF 2.9) Pub Date : 2024-02-21 Ryan G Toomey
Ellipsometry is a powerful tool for the evaluation of the refractive index profile of a film or coating supported on a solid substrate. A well-acknowledged problem, however, is the inverse problem: Given a set of data, under what conditions can a refractive index profile be determined unambiguously? To this end, a series expansion of the Abeles matrix method has been applied to an arbitrary refractive
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A step towards the diagnostic of the ITER first wall: in-situ LIBS measurements in the WEST tokamak Phys. Scripta (IF 2.9) Pub Date : 2024-02-21 Aurélien Favre, Arnaud Bultel, Mamadou Lamine Sankhe, Stéphane Vartanian, Vincent Bruno, Vincent Morel, Daniel L’Hermite, Jean-Baptiste Sirven, Mathilde Diez, Marc Missirlian, Philippe Magaud, Christian Grisolia
As part of the development of proven diagnostics allowing the characterization of ITER’s PFUs (Plasma Facing Units) without dismantling, LIBS (Laser-Induced Breakdown Spectroscopy) is a serious candidate for determining the multi-elemental composition. In this article, we report a measurement campaign carried out within the WEST tokamak using an original device based on the following technological