bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on Magnetic Characteristics and Short-Circuit Force of 3D Wound Core Transformer
Authors: Li Teng , Li Huiqi , Yang Guang 
Published: September 2023

Abstract
The problem of eddy current loss in power transformers directly affects the technical economy of the transformer, which is a problem that cannot be ignored in the design and calculation of power transformers. Studying how to reduce the eddy current losses caused by leakage magnetic fields is a difficult point in transformer design. The load loss of low-voltage foil copper windings in a 10 kV/400 kVA 3D wound core transformer is calculated, and the three-dimensional finite element models of the transformer are established by Using Magnet software and COMSOL Multiphysics software, and the calculation results are compared. At the same time, the short-circuit force of foil windings is shown in the simulation. The results show that the three-dimensional finite element models are correct.
Adaptive comprehensive control strategy for primary frequency regulation of coal-fired units assisted by flywheel energy storage system
Authors: Wang Kaituo , Tian Lijun , Li Nianzhen , Yin Xunpeng , Han Lei , Jiang Tao 
Published: September 2023

Abstract
To improve the flywheel energy storage system (FESS) assisting the primary frequency regulation (PFR) of coal-fired units, an adaptive comprehensive control strategy for PFR taking into account state of charge (SOC) self-recovery is proposed. The strategy introduces an adaptive frequency deviation coefficient so that it can adaptively adjust the inertia coefficient and droop coefficient according to the PFR depth and SOC. In the SOC self-recovery stage, the SOC self-recovery output strategy of the FESS is proposed, which improves the bidirectional adjustment performance of the FESS. Finally, the proposed control strategy is verified in Matlab/Simulink.
Response potential and coordinated dispatching of rural residentials’ temperature control load participating in demand-side response
Authors: Jia Dexiang , Liu Jianye , Lu Wei , Fu Chengcheng , Huang Xingde , Pan Aiqiang 
Published: September 2023

Abstract
With the continuous expansion of household electricity consumption, the impact of household electricity on the power system is also increasing. TCL (Temperature Control Load) accounts for a large proportion of household electrical loads such as AC (Air Conditioning) and EWH (Electric Water Heater) and is an indispensable electrical load in households. For the temperature control load participating in DR (Demand side Response), this article first analyzes the basic physical model of TCL and uses the Monte Carlo method to aggregate multiple temperature control loads. Then, by combining the aggregation model with the willingness and controllability of rural users to participate in DR and analyzing the response potential from the user’s education level, family income, age, and controllability, the potential obtained is more in line with the actual situation. Finally, a scheduling model is established with the goal of economic optimization. From the results, when both AC and EWH participate in the demand-side response, the total operating cost of the system is the lowest.
Multi-objective Planning for Distributed Power Considering Low Carbon Benefits
Authors: Yao Di , Lu Yu , Zhang Dachi , Shi Shengyao , Zhu Meng 
Published: September 2023

Abstract
Distributed power can effectively alleviate the problems of environmental pollution and energy shortage. Based on the consideration of the low-carbon benefits of DG, a multi-objective mathematical model with minimal system carbon dioxide emissions, minimum annual network loss cost, and minimal system voltage deviation of the distribution network is established for multi-type DG access location and capacity. This model is solved using a MOPSO algorithm, which gives the planners a scientific decision-making basis. The analysis results show that the DG configuration scheme obtained by this method can effectively reduce carbon dioxide emissions, reduce network loss costs, and reduce voltage deviation, which verifies the usefulness of the model and algorithm.
Research on Cable Head Monitoring Technology for Transmission Lines
Authors: Zhang Duohan , Dai Liangliang , Li Lianbing , Tian Zhuofan 
Published: September 2023

Abstract
Buried cables are located in harsh environments with high corrosion, uneven soil acidity and alkalinity, and groundwater immersion, resulting in complex structures. Especially for long-distance 10 kV transmission cables, the path planning is relatively long and cannot be connected at once, requiring a connection at the middle end of the cable. The production of cable joints is generally carried out in the foundation pit or well, with complex processes and manual production throughout the entire process, which cannot avoid manual technical deviations. Therefore, cable line faults mostly occur in the intermediate joints. Due to the uneven distribution of the temperature field caused by the accumulation of the electric field, the heat is transferred outward from the peeling chamfer point, resulting in uneven heating. In addition to the skin effect and proximity effect of current, the accumulation of electric field at the chamfer process point of the main insulation and outer semiconducting layer is intensified, and then the insulation is gradually broken down, causing a short circuit or ground fault. This article first studies the temperature and electric field distribution at the cable joint, and considers installing a small temperature sensor at the middle joint of the cable. The sensor is powered by a small electromagnetic energy coil, which can monitor abnormal temperature and electric field changes at the joint in real-time.
Structural Vibration Suppression of Wind Turbine Based on Dynamic Vibration Absorption
Authors: Xia Yalei , Liu Liqun , Xu Hui , Lai Youfu , Liu Weitao , Zhang Xuyang 
Published: September 2023

Abstract
The vibration of wind turbine towers is a critical issue affecting the reliability and safety of wind turbines. Tuned mass dampers (TMD) have been widely used to reduce the vibration of structures. In this study, the finite element simulation method is used to investigate the tower structure’s response to vibration with and without TMD at different placement positions. The results show that under fluctuating wind loads, the vibration displacement and acceleration in the downwind surface of the tower are larger than those in the windward surface. After installing TMD, the damping effect of the wind power tower can be effectively improved. Under the condition that the total mass ratio is constant, the arrangement of placing a single TMD at the top of the tower is changed to a distributed arrangement at the top and the flange. The placement position of TMD affects the vibration reduction effect and the reliability of the tower structure. A distributed arrangement of TMD can improve the reliability of the tower structure and reduce the space occupied by a single TMD.
Effective machine learning-based skin disease diagnosis using PyTorch
Authors: Kumar Rohit , Wang Hwang-Cheng , Mukundan B. , Gupta Saurav Kumar , Kumari C. Shyamala 
Published: September 2023

Abstract
The application of machine learning in medical diagnosis has become a trend in research. Skin infection is one of the most seen diseases and one of the world’s most infectious diseases, influencing people of all ages. The reason for the explicit attention of the researchers in skin detection is due to the reason that skin disease is more visible compared to any other disease. In the past, varied methods have been proposed, which have rendered remarkable results. However, the presently functional models are trained on specific kinds of diseases and are limited to 4 to 5 classes, which is inefficient in detecting a large set of diseases. The paper offers a weightless model for detecting 23 different kinds of skin diseases. The model is trained on the PyTorch backend, which gives the flexibility of developing an algorithm. The model attained 96.37% accuracy on training data, and 87.75% accuracy on test data, which is expected to improve as the size of the dataset is increased.
Bioactivity and antibacterial properties of zinc-doped Ta2O5 nanorods on porous tantalum surface
Authors: Cai Anqi , Yin Hairong , Wang Cuicui , Chen Qian , Song Yingxuan , Yin Ruixue , Yuan Xin , Kang Haoran , Guo Hongwei 
Published: September 2023

Abstract
This paper focuses on the preparation of Zn2+-doped Ta2O5 nanorods on porous tantalum using the hydrothermal method. Porous tantalum is widely used in biomedical materials due to its excellent elastic modulus and biological activity. Porous tantalum has an elastic modulus close to that of human bone, and its large specific surface area is conducive to promoting cell adhesion. Zinc is an important component of human bone, which not only has spectral bactericidal properties, but also has no cytotoxicity. The purpose of this study is to provide a theoretical basis for the surface modification of porous tantalum and to determine the best surface modification method. The surface structure of the sample was characterized by x-ray diffractometer, x-ray photoelectron spectroscopy, scanning electron microscope, transmission electron microscope, and the Zn-doped Ta2O5 nanorods are characterized by antibacterial test, MTT test, ICP and other methods. The sample has good antibacterial properties and no cytotoxicity. The results of this study have potential implications for the development of new and improved biomedical materials.
Giant atom induced zero modes and localization in the nonreciprocal Su–Schrieffer–Heeger chain
Authors: Wang J J , Li Fude , Yi X X 
Published: September 2023

Abstract
A notable feature of non-Hermitian systems with skin effects is the sensitivity of their spectra and eigenstates to the boundary conditions. In the literature, three types of boundary conditions–periodic boundary condition, open boundary condition (OBC) and a defect in the system as a boundary, are explored. In this work we introduce the other type of boundary condition provided by a giant atom. The giant atom couples to a nonreciprocal Su–Schrieffer–Heeger (SSH) chain at two points and plays the role of defects. We study the spectrum and localization of eigenstates of the system and find that the giant atom can induce asymmetric zero modes. A remarkable feature is that bulk states might localize at the left or the right chain-atom coupling sites in weak localization regimes. This bipolar localization leads to Bloch-like states, even though translational invariance is broken. Moreover, we find that the localization is obviously weaker than the case with two small atoms or OBCs even in strong coupling regimes. These intriguing results indicate that nonlocal coupling of the giant atom to a nonreciprocal SSH chain weakens the localization of the eigenstates. We also show that the Lyapunov exponent in the long-time dynamics in real space can act as a witness of the localized bulk states.
Storing quantum information in a generalised Dicke model via a simple rotation
Authors: López-Peña R , Cordero S , Nahmad-Achar E , Castaños O 
Published: September 2023

Abstract
A method for storing quantum information is presented for three-level atomic systems interacting dipolarly with a single radiation field. The method involves performing simple local SU(2) rotations on the Hamiltonian. Under equal detuning, these transformations decouple one of the atomic levels from the electromagnetic field for the Λ- and V-configurations, yielding two effective two-level systems (qubits) plus an isolated atomic level; this allows for the exchange of information between the qubits. This rotation preserves the quantum phase diagram of the system. The method could possibly be used as a means to manipulate quantum information, such as storage and retrieval, or communication via a transmission line.
Denoising land-based controlled-source electromagnetic data based on a same-site noise reference channel
Authors: Yang Yang , Zhang Heng , Zhu Yuzhen , Zhou Changyu , Sun Huaifeng 
Published: September 2023

SUMMARY
The applications of land-based controlled-source electromagnetic (CSEM) exploration are severely limited by strong noise interferences, particularly in mining areas. In this study, we introduce a novel denoising method for CSEM data using a same-site noise reference channel (NRC). While recording data through the normal survey channel (NSC), an additional set of the NRC was added at the same site. The NRC had a different surveying azimuth compared to the NSC and contained minimal or no useful signals. However, the noise characteristics in both the NRC and NSC were considerably similar due to their simultaneous acquisition at the same site. By establishing a set of overdetermined equations for the NSC based on quantified spectrogram characteristics of the NRC, the noise can be effectively eliminated from the NSC using least-squares inversion, resulting in enhanced signal-to-noise ratio data. The effectiveness of the proposed CSEM data-denoising method was validated through its application on real data, and the proposed method is applicable to other types of artificial source data.
Plato’s legacy to education: addressing two misunderstandings
Authors: Kotsonis Alkis 
Published: September 2023

Abstract
Building on Jonas and Nakazawa’s recent work (A Platonic Theory of Moral Education), my aim in this paper is to address two widespread misunderstandings of Plato’s ideas about education. The first is that the Platonic theory of education is nonegalitarian, promoting an educational system that justifies and perpetuates a caste-based society. The second is that the Platonic conception of the virtuous agent is primitive and far inferior to the Aristotelian conception, especially concerning the psychological make-up of the virtuous agent. By exploring some of the ways these misreadings can be countered, I defend the value of the Platonic educational theory for contemporary education and show the value of Jonas and Nakazawa’s project.
Implications for the explosion mechanism of Type Ia supernovae from their late-time spectra
Authors: Liu Jialian , Wang Xiaofeng , Filippenko Alexei V , Brink Thomas G , Yang Yi , Zheng Weikang , Sai Hanna , Xi Gaobo , Yan Shengyu , Elias-Rosa Nancy , Li Wenxiong , Zeng Xiangyun , Iskandar Abdusamatjan 
Published: September 2023

ABSTRACT
Late-time spectra of Type Ia supernovae (SNe Ia) are important in clarifying the physics of their explosions, as they provide key clues to the inner structure of the exploding white dwarfs. We examined late-time optical spectra of 36 SNe Ia, including five from our own project (SNe 2019np, 2019ein, 2021hpr, 2021wuf, and 2022hrs), with phase coverage of ∼200 to ∼400 d after maximum light. At this late phase, the outer ejecta have become transparent and the features of inner iron-group elements emerge in the spectra. Based on multicomponent Gaussian fits and reasonable choices for the pseudo-continuum around Ni and Fe emission features, we get reliable estimates of the Ni to Fe ratio, which is sensitive to the explosion models of SNe Ia. Our results show that the majority (about 67 per cent) of our SNe Ia are more consistent with the sub-Chandrasekhar-mass (i.e. double-detonation) model, although they could be affected by evolutionary or ionization effects. Moreover, we find that the Si ii λ6355 velocity measured around the time of maximum light tends to increase with the Ni to Fe ratio for the subsample with either redshifted or blueshifted nebular velocities, suggesting that progenitor metallicity might play an important role in accounting for the observed velocity diversity of SNe Ia.
The start matters: time-varying investor demand, hedge fund inceptions, and performance
Authors: Sun Lin , Sun Zheng , Zheng Lu 
Published: September 2023

Abstract
We examine whether time-varying investor demand affects hedge fund companies’ decision to start new funds. We find significantly more fund inceptions in hot markets than in cold markets. Funds opened in hot markets exhibit weaker long-term performance, shorter survival time, and greater fraud risk. Investor clientele also varies with market conditions. Investors in hot markets appear to be less sophisticated, which may provide opportunities for more low-quality funds to enter the industry. Overall, inceptions due to high investor demand are not in the best interest of investors.
Intraoperative Neuromonitoring for Spines at Risk During Nonspine Surgery: A 9-Year Review
Authors: Jackson Madeleine E. , Galambas Amanda K. , Bauer Jennifer M. 
Published: September 2023

Background:
Patients with certain spinal anomalies are at risk for rare but devastating spinal cord injuries under anesthesia. We created a Spine at Risk (SAR) program to evaluate and recommend precautions for such patients, including intraoperative neuromonitoring (IONM) use for the highest-risk patients. We aimed to review all monitored nonspine procedures to determine rate of potential spinal cord injuries avoided in those who would otherwise have been unmonitored.

Methods:
We performed a retrospective review of our institutional SAR program from 2011 to 2019 to analyze the number of nonspine anesthetized procedures that were done under IONM, the characteristics of those that had an IONM alert; and the clinical outcomes.

Results:
Of the 3,453 patients flagged for SAR review, 1121 (33%) received a precaution recommendation, and 359 (10% of all flagged) were given IONM recommendations. Of those, 57 patients (16% of recommendations, 2% of all flagged) had a total of 102 nonspine anesthetized procedures done under IONM. Seven patients had a total of 10 cases with IONM alerts. Two cases were aborted when improved signals could not be obtained after working through a checklist; one of these patients woke with transient neurological deficits. Signals improved to baseline in 7 cases by working through a signal loss checklist. One case was aborted preoperatively when monitorable baseline signals could not be obtained.

Conclusions:
In the highest-risk spinal anomaly patients, we monitored an average of 11.7 nonspine cases per year, with a 10% rate of IONM alerts, and no permanent neurological deficits. Although the majority of patients remain safe during procedures, in the most critical patients IONM allowed the team to identify and react to alerts that may have otherwise led to permanent neurological injury. This is the largest series of spinal cord-monitored nonspine pediatric cases. It is important for pediatric orthopedic surgeons to evaluate at-risk patients and recommend IONM where appropriate, to protect both patients and our procedural colleagues.

Level of Evidence:
Case series, level IV.
Analysis of septic arthritis in a sample of Syrian population: a retrospective study
Authors: Khalayli Naram , Shahada Zienab , Kudsi Maysoun , Alcheikh Salwa 
Published: September 2023

Introduction:
This study found an increasing incidence and cost burden of septic arthritis because there are no criteria guiding the decision to perform arthrocentesis in adults. In this study, the authors aimed to determine whether arthrocentesis can be used as a diagnostic criterion for suspected septic arthritis.

Methods:
This retrospective cross-sectional study was conducted in our rheumatology department, and include patients aged greater than 18 years with mono-arthritis suspected to be septic arthritis. The exclusion criteria were prosthetic joints, inflammatory arthritis, participation in the study, and the inability to provide informed consent.
Information was registered, including demographic data, smoking, alcoholism, comorbidities, BMI, symptoms and signs via medical history, clinical examinations (joint pain, local fever, and range-of-motion), fever (temperature >38°C), and laboratory markers including white blood cell count, erythrocyte sedimentation rate, and C-reactive protein. The patients were divided into two groups: group 1 (patients who had arthrocentesis) and group 2 (patients who did not). The authors also divided patients who had arthrocentesis into two subgroups: patients with septic arthritis and patients without. Arthrocentesis was done.

Results:
A total of 256 patients were entered in our study, divided into two groups according to arthrocentesis. In all patients, the joint involved was the knee. Group 1 included 142 knee-aspirated patients (55.46%), and group 2 included 114 nonaspirated patients (44.53%). All aspirations were performed without image guidance. The ages, laboratory markers, physical exams, and comorbidities were not significant between the two groups on multivariate analysis. Synovial cultures were positive in 75.67% of patients. Staphylococcus aureus was the most common germ. No patient had died. The authors did not find any predictive risk factors for whether a joint was septic or not. Fever was significantly more frequent in joint-aspirated patients with septic arthritis.

Conclusion:
The aspiration decision is still the best in clinical practice in light of available clinical and laboratory findings, although further multicenter, larger studies are needed. Based on our findings, the authors decided to aspirate the joint based on positive guided findings and comorbidity risk factors.
Endoplasmic reticulum stress impairs trophoblast syncytialization through upregulation of HtrA4 and causes early-onset preeclampsia
Authors: Yuan Xi , Liu Xiyao , Zhu Fangyu , Huang Biao , Lin Li , Huang Jiayu , Wen Li , Kilby Mark D. , Baker Philip N. , Fu Yong , Wu Weiwei , Qi Hongbo , Tang Jing , Tong Chao 
Published: September 2023

Objective:
Syncytiotrophoblasts form via mononuclear cytotrophoblast fusion during placentation and play a critical role in maternal–fetal communication. Impaired syncytialization inevitably leads to pregnancy-associated complications, including preeclampsia. Endoplasmic reticulum stress (ERS) is reportedly linked with preeclampsia, but little is known about its association with syncytialization. High temperature requirement factor A4 (HtrA4), a placental-specific protease, is responsible for protein quality control and placental syncytialization. This study aimed to investigate the relationship among HtrA4, ERS, and trophoblast syncytialization in the development of early-onset preeclampsia (EO-PE).

Methods:
HtrA4 expression and ERS in preeclamptic placentas and control placentas were analyzed by Western blotting and qRT-PCR. HtrA4 and ERS localization in placentas was determined by immunohistochemistry and immunofluorescence. BeWo cells were used to stimulate the effects of HtrA4 and ERS on syncytialization.

Results:
HtrA4 expression was upregulated in EO-PE and positively correlated with ERS. HtrA4 activity was increased in preeclampsia. Under normoxia, HtrA4 overexpression in BeWo cells did not alter the ERS level. In addition, treatment with hypoxia/reoxygenation (H/R) or an ERS inducer increased HtrA4 expression. HtrA4 upregulation suppressed the levels of syncytin-2 and β-HCG in the presence of forskolin (FSK), and this change was exaggerated after ERS activation. In addition, treatment with an ERS inhibitor markedly suppressed FSK-treated cell fusion in a manner related to downregulation of HtrA4 expression.

Conclusion:
Our results suggest that ERS enables syncytialization of placental development by upregulating HtrA4, but that excessive HtrA4 expression and preexisting ERS impair syncytialization and cause EO-PE.