bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study on voltage stability considering unified power flow controller
Authors: Hu Yuan , Wu Peng , Hou Zhaojun , Wang Ning , Zhang Shuai , Li Yan , Zhao Penghui , Gao Ming , Li Tianhao 
Published: February 2023

Abstract
The access of the unified power flow controller (UPFC) can better meet the requirements of new power system construction with a high proportion of non-fossil energy and large-scale access, and it is more intelligent than the traditional control mode. Through the sensitivity analysis of the Jacobian matrix, the voltage stability of the power system before and after the access to the unified power flow controller is compared, and the simulation analysis in MATLAB/PSAT environment is adopted to simulate the IEEE9-bus system, showing that the access of UPFC achieves the effect of flexible control and can effectively improve the voltage stability of the system.
Differentiated Configuration Options for Centralized and Distributed Energy Storage
Authors: Gao Xuefeng , Xu Yueyang , Liu Yuchun , Li Hao , Wang Xinhong , Wang Dong , Shi Yu 
Published: February 2023

Abstract
With the rapid development of new energy power generation technology and the promotion and application of energy storage in smart grids, energy storage is more and more favored by people. Firstly, the energy storage technology is classified, and its role in the power grid is analyzed. Then, the economy of centralized and distributed energy storage is analyzed. Further, according to the technical and economic characteristics of centralized energy storage and distributed energy storage, the applications of these two types of energy storage are introduced. Finally, based on the characteristics of renewable energy in Jilin Province, recommendations are made for the placement of energy storage in Jilin Province in the context of “carbon neutrality and carbon peaking.”
Research on key technologies of multi-core DSP in smart substation redundancy network testing
Authors: Tang Taonan , Sun Bolong , Li Zhonglei , Yang Minghua , Yi Shuwei , Wang Yibo 
Published: February 2023

Abstract
Aiming at the network characteristics of a smart substation redundant network with complex communication messages, a large amount of interactive data, and high real-time performance, the test model of multiple submachines in a High-Availability Seamless Redundancy (HSR) loop network is analyzed. The requirements of packet types, size, and transmission speed are evaluated, and a hardware solution based on a multi-core Digital Signal Processor (DSP) and Parallel architecture FPGA is designed. The multi-core interaction strategy of DSP software and the multi-port high-speed communication method of FPGA are proposed, and the inter-core communication (IPC) interrupts and shared memory to achieve fast data migration between cores, based on the Serial RapidIO (SRIO) to complete high-speed message transmission. The throughput, delay, packet loss rate, and error frame detection functions are realized, tested, and verified, providing theoretical and practical support for the evaluation of redundant network performance of smart substations.
Design of honeysuckle harvesting robot based on MBSE and TRIZ
Authors: Liu Wenyue , Du Xinyue , Fu Mengyu , Gao Guohua 
Published: February 2023

Abstract
The design of field operation robots is a complex and comprehensive task. The external environment that changes at any time imposes strict requirements on the design. In this paper, we propose a systematic and innovative design of a honeysuckle harvesting robot using MBSE and TRIZ methods, deeply excavating the potential failure factors in 5M1E and effectively completing the robot design task through requirements analysis, functional modeling, and architecture design to ensure the integrity and comprehensiveness of the process.
Design and Optimization of 4-bit Absolute-value Detector Based on CMOS
Authors: Jia Yu 
Published: February 2023

Abstract
With the development of neural signal acquisition systems, spike-sorting algorithms have been paid full attention. As one of the most extensively used spike-detection algorithms, a 4-bit absolute-value detector is designed in the paper, which comprises three types of architecture. The first design is using combinational logic circuit through a truth table of the absolute value of 2′s complement format and a comparator; the second design is a combination of a series of half adders and transmission gates and a comparator; the third design consists of a combinational logic circuit by truth table of 2′s complement and a cascade of full adders. Then the paper compares the total number of stages and consuming transistors of each circuit, and finally chooses the second circuit, which has five stages and 74 transistors of consumption, as the object of following optimization of critical path delay and energy consumption. With gate sizing, the optimized critical path delay is about 43.05 tp0. The original energy consumption under minimum delay is 49.88C, and the optimized energy consumption under 1.5x minimum delay is 30.35C which is reduced by 39.16%. The processing of the functional realization and circuit optimization of absolute-value detectors can both benefit from the design presented in this work.
A Low Energy Depletion CMOS Transistor-based 4-bit Absolute-value Detector
Authors: Du Chenyu , Guo Yucheng , Zhang Junchao 
Published: February 2023

Abstract
With the development of the electronic industry, the requirements for equipment are becoming higher and higher in recent years. In this paper, a 4-bit absolute value detector is designed to have a low delay and energy consumption. The detector is composed of MUX, an adder, and a comparator. By comparing the 4-bit input with the given threshold value, the result is output. Based on the logic effort theory, this paper calculates the logic effort and parasitic delay of each stage of the detector and uses the transmission gate logic to redesign the XOR gate, which greatly improves its performance. Through certain calculations and optimization, the delay and energy consumption of the detector is reduced. Finally, this paper realizes a relatively simple 4-bit absolute value detection circuit, which has a small number of transistors and greatly improves the performance of the circuit. At the same time, it has a certain reference value for the related circuit design.
Research on Intrusion Identification of Hazardous Construction Areas Based on Machine Vision
Authors: Hu Rongyi , Li Feng , Wang Tingting , Fan Haifeng , Dong Long 
Published: February 2023

Abstract
The complex environment of power construction sites is prone to frequent accidents and many dangerous areas. Using advanced artificial intelligence technology to monitor these dangerous areas in real-time is the primary measure to improve construction safety. Given the problems of poor real-time monitoring and the low accuracy of traditional methods, this paper proposes a real-time monitoring method for dangerous areas based on YOLOv5 deep learning, and through the trained YOLOv5, the construction site is monitored in real-time. Timely warnings are issued for those entering dangerous area to avoid accidents. Verified by the actual data, the method is timely and effective with high identification accuracy.
Design of 3D inspection system of switch station with distributed photovoltaic connected to distribution network
Authors: Zhang Hua , Li Shilong , Ding Lijie , He Xingqi , Xie Tianxiang , Huang Yan 
Published: February 2023

Abstract
The power distribution network has many switch stations connected to distributed photovoltaics. However, the heating hazard, the partial discharge in the switchgear, and the operation conditions of those switch gears cannot be detected and identified by traditional methods in time. This paper designs a three-dimensional (3D) inspection system for those switch stations. An infrared window in the switchgear, an infrared thermal imager, and an ultrasonic partial discharge detector outside the switchgear are designed to monitor the switch station environment. Finally, with video analysis technology, the system can identify the operation condition of the switch station equipment. It is significant to monitor and manage the switch stations, thus the switch stations become safer and more reliable.
Dispersion chain of quantum mechanics equations
Authors: Perepelkin E E , Sadovnikov B I , Inozemtseva N G , Korepanova A A 
Published: February 2023

Abstract
Based on the dispersion chain of the Vlasov equations, the paper considers the construction of a new chain of equations of quantum mechanics of high kinematical values. The proposed approach can be applied to consideration of classical and quantum systems with radiation. A number of theorems are proved on the form of extensions of the Hamilton operators, Lagrange functions, Hamilton–Jacobi equations, and Maxwell equations to the case of a generalized phase space. In some special cases of lower dimensions, the dispersion chain of quantum mechanics is reduced to quantum mechanics in phase space (the Wigner function) and the de Broglie–Bohm «pilot wave» theory. An example of solving the Schrödinger equation of the second rank (for the phase space) is analyzed, which, in contrast to the Wigner function, gives a positive distribution density function.
Steerability criteria based on Heisenberg–Weyl observables
Authors: Lai Lemin , Luo Shunlong 
Published: February 2023

Abstract
Einstein–Podolsky–Rosen (EPR) steering is an intermediate form of nonlocality which interpolates between entanglement and Bell nonlocality. It has been shown that EPR steerable states are fundamental resources for one-sided device-independent quantum information tasks. Nevertheless, distinguishing quantum steerable states from the unsteerable ones in general cases remains a big challenge under active studies. The generalized Bloch representation of density matrices in terms of the Heisenberg observables is a useful tool for analyzing characteristics of quantum systems and plays an important role in quantum information. In this work, the role of this representation in detection of EPR steering is studied. More specifically, based on the correlation matrices of the Heisenberg–Weyl observables, a family of steerability criteria for arbitrary dimensional bipartite systems are proposed. A large class of Hermitian operators, which can conveniently witness steering in some scenarios, are further provided. Finally, these criteria are illustrated through several examples, are compared with some existing ones, and their power and advantages are exhibited in certain cases.
Comparative assessment on climate prediction from CMIP5 and CMIP6 models over Hulu Terengganu, Malaysia
Authors: Syahmi Wan Amirul , Tukimat Nurul Nadrah Aqilah 
Published: February 2023

Abstract
The uncertainties of climate change in the future year cause the contribution factors and greenhouse gasses (GHGs) effects on the local climates need to be revised. The development of new climate scenarios in the 6th Coupled Model Intercomparison Project (CMIP6) is consistent with the technological exploration and increment of GHGs dispersion compared to the consideration factors in CMIP5. The purpose of this study was to compare the performance of CMIP5 (based on Representative Concentration Pathways, RCPs) and CMIP6 (based on Shared Socioeconomic Pathways, SSPs) in simulating seasonal rainfall and estimating trends in Hulu Terengganu, Malaysia. The linear scaling (LS) method was used in this study to treat the gaps between observed and simulated results, and the climate trend was examined using the Mann-Kendall (MK) and Sen’s Slope tests. The results show that the SSPs scenario outperforms the RCPs in simulating historical rainfall (2015-2020) by producing a higher r value and a smaller percentage difference. According to the MK test, there was no significant trend in projected rainfall across all scenarios (2020-2099). Based on Sen’s Slope test, RCP 4.5 and RCP 8.5 show an increasing trend for all rainfall stations. However, all SSP scenarios show a declining trend in projected rainfall, with SSP1-2.6 producing the largest declining trend magnitude. In contrast, when compared to observed rainfall from the baseline period (1988-2017), the SSPs scenario indicates the potential for a greater increase in future annual rainfall projections than the RCPs scenario. All SSP scenarios show an increasing annual rainfall magnitude in 2040-2069 (Δ2050). However, the annual rainfall for SSP2-4.5 and SSP5-8.5 began to decrease in 2070-2099 (Δ2080). Meanwhile, RCP 2.6 has the greatest reduction in annual rainfall projections for both projected time periods when compared to other scenarios. It can be concluded that although all SSPs scenarios show a declining trend in projected rainfall from 2020 to 2099, the total annual rainfall projected for SSPs remains higher than RCPs in Δ2050 and Δ2080 periods.
Indoor Air Quality (IAQ) and Related Risk Factors for Sick Building Syndrome (SBS) at the Office and Home: A Systematic Review
Authors: Aziz Norsaffarina , Adman Mohammad Adam , Suhaimi Nurud Suria , Misbari Syarifuddin , Alias Ahmad Rizal , Aziz Azrina Abd , Lee Lim Fang , Khan Md Mobarak Hossain 
Published: February 2023

Abstract
The comfort and productivity of workers may be affected differently by the indoor air quality (IAQ) and related risk factors at the office and at home. Sick Building Syndrome (SBS) is one of the health issues usually faced by workers. SBS is generally associated with the time spent in a building, IAQ, and other related risk factors. The study reviewed papers published in journal articles and conferences regarding IAQ, environmental risk factors and SBS in the last ten years. The review employed the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) 2020 items from two significant databases, Scopus and Web of Science. The review steps involved identification, screening, eligibility, data extraction and analysis. The study found that air quality in a building significantly influences work productivity and may contribute to SBS. Findings show that SBS symptoms are linked to various personal characteristics, sociodemographic, working environment and IAQ factors. The physical contaminants, chemical contaminants and ventilation rate have established relations with SBS symptoms. These findings can help to form interventions aiming to improve IAQ and the productivity of occupants.
The Influence of Adiabatic Heat and Combined Blast Load and Fire Loading on the Response of Mild Steel Plates
Authors: Razak N S A , Nik Mazlan N N A A , Hassan Z , Alias A 
Published: February 2023

Abstract
This paper study the influence of adiabatic heat and fire loading on the behaviour of unstiffened mild steel plates subjected to close-in blast loads using finite element (FE) analysis. A quarter-symmetry 3D FE model consists of the steel plate, clamps and bolts was developed using Abaqus/CAE. Classical plasticity model was used as the material model in the steel plate and bolts. The clamps were assumed as an elastic material. Temperature-material properties relationship according to Eurocode 3 and Masui model was assigned to the steel plate. Conwep function was used to simulate the blast loads. The influence of strain rates was considered in the steel plate using the Cowper-Symonds equation. The FE model of the unstiffened plates was verified and validated against experimental data from literature, where a good agreement was achieved. The results suggest the adiabatic heat in the steel plates does not significantly influence the behaviour of the steel plates in both temperature-material properties models. The study then investigated the effect of combined blast loads and fire loading on the response of steel plates. The fire loading was applied by increasing the temperature in the steel from 200 °C to 1000 °C. Excessive deformation and thinning of the plate at the central area of the plate was observed. The thinning at the central area is pronounce than the thinning of the plate at the boundary between the clamp and the steel plate. Hence, the FE analysis suggests that the failure might occur at the central area of the plate, which could suggest a tearing type of failure. This type of failure is common in plates subjected to close-in blast loads. Therefore, this study has shown that the effect of adiabatic heat is insignificant, and the combined blast-fire loading might cause a similar type of failure as in plates subjected to blast loads only.
Utilization of Eggshells Ash as Additive in Enhancing Physical Properties of Bitumen Binder
Authors: Syammaun Tamalkhani , Husaini  , Abdullah  , Isya Muhammad 
Published: February 2023

Abstract
The aim of this research is to evaluate the physical properties of bitumen binder incorporating eggshell ash (ESA). Using ESA in bitumen was investigated as an alternative, as an additive in potential paths to landfill disposal and for improving the service physical properties of bitumen binder. Four different contents of ESA (2%, 5%, 7%, and 10%) were used by weight of bitumen with a 60/70 penetration grade. Several laboratory tests, i.e., penetration, softening point, ductility, viscosity, and specific gravity, were conducted to check the performance of the ESA. The results showed that the specimens with higher ESA content had the largest values of softening point. In contrast, the softening point decreased as the ESA content decreased. The addition of ESA clearly shows the increase in viscosity. From the observations, it is evident that the addition of 5% of ESA has the potential to improve the performance of bitumen binder compared to other ESA percentages.
Characteristic of Asphalt Mixture using Fly Ash and Bottom Ash Substitution in Reducing Environment Pollution
Authors: Azka C.N. , Rani H.A. , Katami T.M.R. 
Published: February 2023

Abstract
One of the waste materials produced by industry activities is fly ash and bottom ash (FABA), it is produced by brick combustion waste. Fly ash and bottom ash waste is hazardous and toxic (B3) waste for it contains heavy metal oxides polluting the environment. Related to the condition, the output study of toxicity potential test carried out to coal ash in Nagan Raya PLTU (Electric Steam Power Plant) proving conversely. The coal ash of Nagan Raya PLTU is relatively safe to be used as construction material. The output explained that coal ash of Nagan Raya PLTU have adequate good potency to be utilized. One of coal ash potencies developed is the utilization asphalt mixture material including bottom ash as fine aggregate substitution and fly ash as filler substitution. The research aimed to find out the mixture characteristic by utilizing FABA for the road pavement of asphalt concrete layer (AC-WC) to reduce environment pollution and detect the appropriate proportion for the optimal utilization. The percentage of fine aggregate in the mixture must meet the requirement of binder as 5-15% to the weight, while the filler must meet the minimum of 75% to weight of filter pass No. 200 (0.075 mm). The test output of both mixtures by using bottom ash and fly ashin 15%-30% variation was different. The output is similar. Both of the output concluded that the optimum asphalt level was 5% and the variation of 30% bottom ash : 70% fine aggregate meet the requirement specification, while variation fly ash as subtitution Portland cement resulting that all the parameters meet the specification required by Bina Marga specification 2018.
Pedestrian Behaviour at Unsignalized Zebra Crossing: A Case Study in UMP Gambang Campus
Authors: Ismail Azlina , Yusof Liyana Mohamed , Razlan Intan Suhana Mohd 
Published: February 2023

Abstract
The interest toward promoting walking culture has been increased dramatically especially in many cities across the nation. This is also included universities worldwide that have started seeking ways to increase pedestrian activities. Hence, campus planners must address the mobility and accessibility needs of pedestrian in their communities to ensure safety, functionality and conducive living and learning environment. This study was conducted to evaluate the pedestrian perception and behaviour towards the unsignalized zebra crossing in campus environment. To achieve the objective of this study, the unsignalized zebra crossing in UMP Gambang campus was selected as study location. This study was conducted using a quantitative study by means of questionnaires distribution and pedestrian movement data collection. Then Average Index Method was performed to indicate the pedestrian perception towards the crossing facility performances. The result shows that the zebra crossing was efficient and safe from the respondent’s perspective. Other than that, gender and platoon significantly influenced the crossing speeds. The outcomes from this study were hoped to bring some understanding to the university on the pedestrian’s behaviour for future planning and pedestrian safety.
Assessment of tensile behaviour of plain weave fabric CFRP composites using acoustic emission technique and deep learning
Authors: Barile C , Casavola C , Pappalettera G , Paramsamy Kannan V 
Published: February 2023

Abstract
The applications of Carbon Fibre Reinforced Plastic (CFRP) composites in aerospace applications have increased exponentially in the last decade. CFRP composites are now replacing conventional materials used in high temperature applications. Different types and strategies of reinforcements are used in these composites to improve their applicability to high temperature applications. One of the reinforcement strategies that has been used frequently in the recent years is the plain weave fabric configuration of reinforcing fibres in polymer matrix. A comprehensive damage assessment is essential to evaluate the characteristics of these composites at elevated temperatures. The Acoustic Emission (AE) signals generated during the damage evolution stages are used for studying the damage evolution stages when the plain weave fabric composites are tested at temperatures close to their glass transition state. A new information-theoretic parameter, Lempel-Ziv (LZ) complexity and the deep learning neural network is used for understanding the damage evolution stages. Furthermore, the neural network is used for validating the utilization of LZ complexity as a potential AE parameter for damage classification applications. The results are promising with the damage classification strategy using LZ complexity exhibits an accuracy of 85.1% which is validated through the neural network.
Increased interaction between Ultra-High Molecular Weight Polyethylene fibres and epoxy matrices for advanced composite materials
Authors: Galvanetto E , Caporali S , Zonfrillo G , Gulino M S , Pugliese L , Vangi D 
Published: February 2023

Abstract
Ultra-High Molecular Weight Polyethylene (UHMWPE) fibre is considered as an excellent strengthening component due to its high specific stiffness and strength, good wear resistance, low coefficient of friction and great chemical resistance. However, very weak interfacial adhesion with resin has hampered the development of UHMWPE-based composites with high performance. With the aim of improving the interface adhesion properties, the surface of the fibres has been decorated with PE crystal by a suitable chemical treatment. Adhesion property has been examined by pull-out tests, while tensile tests have been performed to evaluate the strength of the fibre. Preliminary results indicate that, compared to unmodified UHMWPE fibres, the overall mechanical properties of the composite with treated UHMWPE fibres and epoxy resin have been greatly improved. Moreover, the applied treatment does not weaken the strength of the fibre. The study results imply that the modified fibres have a great potential for use as reinforcing elements in high-performance composites.