bluuebunny/crossref_metadata_2025_split huggingface dataset:
Critical non-Hermitian topology induced quantum sensing
Authors: Sarkar S , Ciccarello F , Carollo A , Bayat A 
Published: June 2024

Abstract
Non-Hermitian (NH) physics predicts open quantum system dynamics with unique topological features such as exceptional points and the NH skin effect. We show that this new paradigm of topological systems can serve as probes for bulk Hamiltonian parameters with quantum-enhanced sensitivity reaching Heisenberg scaling. Such enhancement occurs close to a spectral topological phase transition, where the entire spectrum undergoes a delocalization transition. We provide an explanation for this enhanced sensitivity based on the closing of point gap, which is a genuinely NH energy gap with no Hermitian counterpart. This establishes a direct connection between energy-gap closing and quantum enhancement in the NH realm. Our findings are demonstrated through several paradigmatic NH topological models in various dimensions and potential experimental implementations.
Green synthesis and characterisation of ZnO from citrus hystrix extracts for photocatalytic application
Authors: Lauthfi Muhammad Asyraf Al-Wafiy , Mohd Yusoff Mohd Zaki , Ahmad Kamil Suraya , Che Azurahanim Che Abdullah , Malek Mohd Firdaus 
Published: June 2024

Abstract
The purpose of this ongoing research project is to enhance the quality of zinc oxide (ZnO) powder synthesised through a green synthesis process using extracts from C. hystrix. The objective is to explore the potential of C. hystrix as a sustainable source for the production of ZnO nanoparticles with improved properties. Through a series of experimental procedures, including characterisation techniques such as x-ray diffraction (XRD), scanning electron microscopy (SEM), and UV–vis spectroscopy, the synthesised ZnO powder’s structural, morphological, and optical properties are evaluated. Additionally, the photocatalytic activity of the biosynthesised ZnO powder is assessed for its effectiveness in degrading organic pollutants under UV illumination. By systematically optimising the synthesis parameters and understanding the underlying mechanisms, this research endeavours to contribute to the advancement of green synthesis approaches for producing high-quality ZnO nanoparticles that demonstrate enhanced performance, thereby fostering sustainable and eco-friendly nanomaterial synthesis processes. Following the successful production of eco-friendly ZnO through green synthesis, the optimum sample will undergo several experiments using a doping method with various chemical substances.
Novel plasma actuator for mitigation of dynamic stall
Authors: Lilley Alexander James , Roy Subrata , Visbal Miguel R 
Published: June 2024

Abstract
A novel plasma actuator, the Linear Counter-flow using a Point Embedded Electrode (LCPEE), is developed for the prevention of dynamic stall for a sinusoidal pitching movement between α = 4° and α = 18°. The LCPEE is implemented on a NACA0012 airfoil and tested at a Reynolds Number of Re
c
= 2 × 105 and reduced frequency of k = π/16. Prior investigations using a standard linear actuator showed that the exposed electrode introduced perturbations passively which delayed dynamic stall when the actuator was off. For the LCPEE actuator, when turned off, there is least passive delay. When the LCPEE is turned on at St
f
= 50, the dynamic stall is prevented for the sinusoidal pitching motion of the airfoil. The LCPEE actuator is also tested for the same sinusoidal motion between α = 6° and α = 20°. Four cases are considered for the higher α range of motion: actuator off, actuator on at St
f
= 50 with a sinusoidal input waveform, actuator on at St
f
= 50 with a triangular input waveform, and actuator on at St
f
= 100 with a sinusoidal input waveform. Specifically for the last case, experiment shows no flow reversal demonstrating the efficacy of LCPEE in controlling the dynamic stall. The effects of LCPEE on the flow energy distribution have also been studied by using proper orthogonal decomposition (POD) method.
An improved fractional-order transmission model of COVID-19 with vaccinated population in United States
Authors: Sun Deshun , Yuan Kelei , Yin Guohua 
Published: June 2024

Abstract
In this paper, we propose a new fractional-order differential equation model with latent and vaccinated population to describe the dynamics of COVID-19. Firstly, the theoretical mathematical model is established based on the transmission mechanism of COVID-19 in the population. Then, the data of the infected, the recovered and the death are collected from big data report of Baidu’s epidemic situation, and the parameters are estimated by piecewise fitting and nonlinear least square method based on collected data. The correlation coefficients between the infected and model simulation, between the recovered and model simulation, between the death and model simulation are 0.9868, 0.9948 and 0.9994, respectively and the accuracy of prediction are 96.05%, 99.33% and 99.88%, respectively. Additionally, the accuracy of prediction is compared between fractional-order differential equation model and integer-order differential equation model, and the results show fractional-order differential equation model can better predict the development trend of COVID-19. Finally, we analyze the sensitivity of the parameters through numerical simulations, and put forward the corresponding strategies to control the epidemic development according to the screened sensitive parameters.
Effect of annealing duration on the structural, optical and magnetic properties of NiO/NiFe2O4 nanocomposites
Authors: Sahu B , Panigrahi U K , Chakravarty Sujay , Hussain Shamima , Mallick P 
Published: June 2024

Abstract
The impact of annealing time on the structural, optical, and magnetic characteristics of NiO/NiFe2O4 nanocomposites (NCs) was examined after successful synthesis via a straightforward economical wet chemical method. X-ray diffraction (XRD) characterization reveals the presence of cubic NiO as the predominant phase along with the minor phase fraction of NiFe2O4. Slight growth in the crystallite size from 38.96 to 40.25 nm is noticed with the rise of annealing duration. The suppression of intensity of the 2M Raman mode of NiO matrix confirms the decreasing trend of antiferromagnetic (AFM) correlations with the elevation of annealing time. The band gap of the samples increased from 3.38 to 3.98 eV upon increasing the annealing duration. The samples showed strong emissions in the UV region along with other visible emissions. The CIE chromatographic image of the samples indicated the shift of colour emission from blue to the near green region with increasing annealing time. Magnetization data suggests the presence of weak ferromagnetic feature in the background of the AFM NiO matrix at 300 K. The remanent magnetization of the samples increased slightly from ∼0.23 to 0.27 emu g−1 with increasing annealing duration along with perseverance of exchange bias (EB) in all samples at room temperature.
The discontinuous mesh processing for electromagnetic scattering analysis of conducting objects by PO method
Authors: Wen Ding-e , Ding Fan , Zhang Qi , Wu Weijun , Zheng Shengquan , Yang Helin 
Published: June 2024

Abstract
In electromagnetic (EM) simulations, conventional triangular patches are implemented to discretize the surfaces of conducting objects. The EM scattering of the conducting objects is presented based on the Rao-Wilton-Glisson basis function and continuity of the surface current across the boundary with different mesh sizes. The radar cross section (RCS) is acquired for conducting objects using physical optics (PO). The numerical results are compared with those from a commercial software (FEKO), which indicated the accuracy and effectiveness of the method in this study.
3D Printing Technology and Future of Construction: A Review
Authors: Ghosh B , Karmakar S 
Published: June 2024

Abstract
Historically characterised by its labour-intensive nature and low productivity, the construction industry is witnessing a technological revolution. Among these advancements, 3D printing stands out as a frontrunner, offering the potential to automate construction processes, reduce material waste, shorten project timelines, and mitigate risks associated with manual labour. This study explores the transformative capacity of large-scale 3D printing in construction, examining current progress, potential trajectories, and inherent limitations. Furthermore, it assesses the impact of expanded 3D printing adoption on the construction labour market. Our findings highlight 3D printing’s potential to significantly diminish the need for manual labour, addressing labour shortages, particularly in countries reliant on immigrant labour forces. However, its effectiveness may vary in regions with competitive labour costs where manual labour remains prevalent. Integrating 3D printing in construction necessitates cultivating a specialised workforce with expertise in this innovative technology. In conclusion, this study underscores the transformative influence of 3D printing in construction, offering increased efficiency, reduced labour dependency, and solutions to industry challenges. Adapting 3D printing adoption to regional labour dynamics and workforce upskilling is essential for maximising its benefits. As the construction industry evolves, embracing 3D printing emerges as a pivotal factor in shaping its future landscape.
Buildings of Distinct Plan Shapes Under Wind Load: Wind Interference Effects
Authors: Pal Supriya , Raj Ritu , Bano Alfia 
Published: June 2024

Abstract
This paper presents the results of the experimental investigations carried out on two intricate plan-shaped buildings to evaluate the aerodynamic performance of the building. The intention is to explore the associated environment resulting from wind forces in both solitary and obstructing situations using a prototype model at a scale of 1:300 with a prototype having 180m height. Experimental tests were carried out at the boundary layer wind tunnel considering isolated conditions with 0° to 180° isolated wind directions and four interference conditions of twin buildings (separately for both the models). The research has been undertaken in Terrain Category II, which is the most widely available terrain in India. A comparative assessment of the two models is performed in an attempt to comprehend the various consequences of diverse conditions that may emerge in real-life situations, as well as the discrepancies among them. Experimental results of wind pressure coefficients of Model-1 and Model-2 show good agreement with various wind incidence conditions with the minute difference in the magnitudes of Cp. On the basis of wind tunnel studies, it is distinguished that the performance of Model-2 is better than Model-1 in both isolated as well as interference conditions for all wind incidences and orientations respectively.
Flexural and shear load rate evaluation on Pre-stressed concrete Box Girder Superstructure under the effect of IRC Loading
Authors: Srivastava Shreyam , Mishra Abhishek 
Published: June 2024

Abstract
In the Present time Bridge Load Rating plays an important role in estimating the structural condition as well as the performance and the safety parameter of the already constructed bridge. There are different experimental method which are available in order to perform the load rating phenomenon. The primary goal of this research project is to present an analytical way in which the load carrying capacity through the process known as Bridge Load Rating can be performed on the software basis as per the IRC Codes. Till now the only codes available in the MIDAS Civil software for the load rating work are the AASHTO LRFR-19, AASHTO LRFR-11, AASHTO LRFD05, CS454/20, so in this research work the load rating work as per the Indian Codes is trying to be achieved. In this paper modelling and comparison of two PSC Post Tensioned Single Span Box Girder of span length 40m is carried out on the MIDAS Civil software and the objective of the study is to evaluate the load carrying capacity of the two different model based on the value of Flexural B.M, S.F and vertical displacement. The two models which are modelled among them the first model represent the state of newly constructed bridge and the other model represent the condition of the same bridge but after a stipulated time period. It was found out that the bridge loses it’s structural strength and capacity after a time period of 70 years. It was discovered that there is a considerable increase of 149.33% and 34.8% in the value of vertical displacement and Bending moment in the bridge model which was analysed after a time period of 70 years. The methodology adopted in this paper for the load rating work can also be used on different bridge structures such as Reinforced cement concrete and Pre-stresses Concrete bridges such as Cable stayed, Composite I Girder, T-Girder, I-Girder bridges etc.
Response of Structure with Spring Back System Bracing Subjected to Seismic Loads
Authors: Biradar Umesh R 
Published: June 2024

Abstract
Earthquakes have been a long-standing natural calamity known to humanity, and researchers throughout history have extensively explored methods to safeguard buildings. The objective has been to mitigate the destructive impact of earthquakes on existing structures. Retrofitting has been deemed necessary for numerous reinforced concrete buildings to address their inadequacies in withstanding seismic forces. Current study presents comparative analysis of building models with V Spring Back System (SBS) bracing and Half Inverted V Spring Back System (SBS) bracing. Among the various techniques, incorporating a Spring Back System bracing has proven highly effective in this regard. The response spectrum analysis method will be used to evaluate the dynamic behavior of the building models. All building models will be evaluated for different Zones condition (3,4 & 5). The sophisticated tool ETABS is used for structural analysis and design. The bracing systems provided at central portion of buildings are proved to be more efficient than the bracing systems provided at peripheral portion of buildings in order to reduce the lateral displacement. The lateral displacement for all storey’s along the Y-Direction are reported more than X-Direction., this is probably due to the higher dimension in X-Direction which obviously exhibits more stiffness.
Comparative analysis of single plane and double plane cable configuration of extradosed bridge
Authors: Sanap B. V. , Dawari V. B. 
Published: June 2024

Abstract
Extradosed bridges blend features of cable-stayed and prestressed concrete box-girder bridges, offering improved aesthetics, construction cost savings, and enhanced durability. The extradosed design employs an extradosed cable system, which provides robust deck support while maintaining a lower overall profile. Analyzing extradosed bridges entails complex considerations of various factors. This study employs MIDAS Civil software to compare the performance of single-plane and double-plane cable configurations of extradosed bridges under permanent load conditions. Parameters such as deflection, bending moment, and shear force are evaluated and compared. The analysis reveals that the double-plane cable configuration exhibits reduced bending moment and shear force compared to the single-plane configuration, enhancing structural stability. The adoption of a double-plane cable configuration for extradosed bridges demonstrates superior structural stability when subjected to permanent loads. This finding underscores the potential benefits of this design approach, including enhanced safety and longevity.
Behaviour of Fully Integral Bridge over Indrayani River
Authors: Phalle S. V. , Dawari B. M. 
Published: June 2024

AbstractThe Integral bridge have a continuous deck that is fully connected to the abutment. This study compares Fully integral bridge and Conventional simply supported bridge commonly under primary and secondary loads. Primary loads refer to the weight of the bridge, traffic loads, water current forces, wind load, seismic load and earth pressure calculations while secondary loads include temperature variations, shrinkage and other environmental factors. The research evaluates the effect of these loads on the structural behavior of the bridges and their resistance to deformation and failure. The bridge on Dehu-Sangurdi road near Pune is taken for case study. The length of bridge is 90 m with 4 spans of each 22.5 m. The STAAD Pro software is used to model and analyze the both type of bridges under different loading conditions. The research findings indicate that Fully integral bridge have higher resistance to deformation. The study compares the response of Fully integral Bridge and Conventional simply supported bridge to these loads based on deflection and bending moment parameters.
Analysis Of the Cable - Stayed Bridge by Varying Cable Position at Deck Level
Authors: Yadav Anand Gaurav , Yadav Prince 
Published: June 2024

Abstract
Cable-stayed bridges have gained significant popularity due to their structural efficiency and aesthetic appeal. The positioning of cables in a cable-stayed bridge plays a crucial role in its overall performance. This research paper presents an analysis of cable-stayed bridges by varying the cable positions at the deck level. The objective is to investigate the impact of different cable configurations on the structural behaviour of the bridge. The study is carried out on Akkar Bridge in Sikkim which is India’s first cable - stayed bridge. The analysis is carried out using CSi Bridge software. Three model of a cable-stayed bridge is developed, considering same cable configurations by applying different conditions. The cables are positioned at different angles and attachment points on the deck, allowing for a comprehensive exploration of their effects. Live loads are taken according to IRC: 6-2017, IRC Class 70R Vehicle load was considered. The structural responses of the cable-stayed bridge are evaluated under various loading conditions, including static and dynamic loads. The time-dependent effects of creep and shrinkage of concrete and relaxation of pre-stressing tendons on stresses and deflection are analysed. Parameters such as bridge deflection, cable forces, and stress distribution are examined to assess the performance and structural integrity of the bridge. The results of the analysis reveal that cable positioning significantly influences the behaviour of the cable-stayed bridge, Changes in cable configuration alter the distribution of forces within the structure, leading to variations in structural response. Optimal cable positions are identified based on minimizing deflection and ensuring efficient load transfer throughout the bridge.
Experimental investigation of durable parameters in high volume flyash concrete used in coastal region
Authors: More Supriya S , Kambekar A R 
Published: June 2024

Abstract
Cement manufacture is a significant source of carbon dioxide (Co2) emissions in the building sector. Thus reduction in carbon footprint is need of the day which can be achieved through use of high volume flyash (HVFA) concrete mix which helps in reducing the cement demand in the concrete mix. HVFA mixes offers better life cycle assessment than the conventional Portland cement concrete mix (OPC). In this study, concrete mix of grade M30 to M70 with OPC mix without flyash was compared with the HVFA mix which had 40% and 50%flyash replacement. The mechanical behaviour such as compressive strength in HVFA mix was less as compared with pure OPC mix on an average by 4 MPA also the rapid chloride penetration (RCPT) was found less than when compared with pure OPC mix for all grades of concrete. For M30 grade of concrete the RCPT values were 1412 coulomb which was less as compared with OPC mix, while the RCPT values with HVFA mix for M35, M40 M45, M50, M60 and M70 was 1412 coulomb, 1317 coulomb, 1056 coulomb, 1182 coulomb, 990 coulomb, 870 coulomb 991 coulomb respectively. When compared to the HVFA mix, the pure OPC mix’s water absorption showed greater values. M30 grade of concrete the water absorption was 31% less than pure OPC. Similarly for M35, M40, M45, M50, M60 and M70 was 12%, 34% 5%, 34%, 38% and 53% respectively. Hence HVFA mix though had strength less than OPC mixes but delivered excellent durability parameters.
Effect on concrete strength and durability with partial replacement of cement by Nano-titanium dioxide (nano-TiO2) and ground granulated blast furnace slag (GGBS): A Review Summary
Authors: Vaid Urvashi , Balwinder Lallotra Dr. 
Published: June 2024

Abstract
Concrete has a great ability towards physical strength and durability and is one of the most often utilized building material. The cement companies are finding or seeking an alternative cementitious composite that may reduce environmental impact while increasing concrete’s stability and durability. The researchers have shown keen interest in nanotechnology and industrial by-product which meet the quality standards as well as minimize the harmful emissions produced by the cement industries. This paper mainly focuses on partial alternative to cement in order to improve the properties of concrete, specifically strength and durability. The primary aim of this review paper is to understand the impact on mechanical properties of concrete as well as durability with partial replacement of cement by Nano-titanium dioxide (nano-TiO2) and ground granulated blast furnace slag (GGBS) by analyzing the existing literature based on concrete characteristics.
Strength and deformation behaviour of zinc tailing waste material for embankment construction
Authors: Bhatt P , Sinha A K , Mariya D P J , Hasan M 
Published: June 2024

Abstract
At present, significant efforts are being made to expand the road network as a result there is a scarcity of locally available material. Conversely, zinc tailing is abundantly available as a waste which is produced during extraction of zinc metal from its ore. Literature indicates that it meets the standard specifications for the construction of embankment and structural fill application. No study has been found regarding the structure interaction between tailing and geogrid to improve the modulus of elasticity of embankment and structural fill. Considering this, a research programme has been conducted to examine the strength and deformation behaviour of tailing with or without geogrid reinforcement by laboratory physical model. Plate load tests were used to compare the modulus of elasticity of reinforced and unreinforced tailing. Tailing was observed that it is a silt size, non-plastic, low compressible, permeable and cohesionless material with high value of shear strength parameter (Φ). It was observed that single layer reinforced fill has more modulus of elasticity than unreinforced tailing fill. About 46 % reduction in settlement was observed which indicates that modulus of elasticity will increase about 83 % if two layers of geogrid reinforcement will be used in comparison to without geogrid. It was concluded that tailing can be used in the construction of embankment as well as structural fill.