bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prospects for anisotropic superfluidity in a Fermi gas of dysprosium
Authors: Vinogradov V.A. , Karpov K.A. , Platonova M.V. , Turlapov A.V. 
Published: June 2022

Abstract
The possibility of obtaining superfluid phases for a Fermi gas of dysprosium with a magnetic dipole – dipole interaction is discussed. The obstacles and possible solutions are shown. The required phases are similar to the A1 phase and the polar β phase in 3He. It is expected that in dysprosium, the macroscopic properties of the phase will be determined by the symmetry of the pair interactions. It is assumed to observe the kinetics of phase formation and spontaneous choice between two energy-degenerate phases with different projections of the orbital angular momentum.
“A geography of names”
Authors: McEnery Tony , Baker Helen 
Published: June 2022

Abstract
We investigate discourses surrounding venereal disease in a wide body of seventeenth-century texts in the one-billion-word Early English Books Online (EEBO) corpus. By combining quantitative methods with close reading of texts within EEBO, we explore whether perceptions of sufferers and responses to the illness itself shifted as the century progressed. In order to uncover the kinds of written works in which references to venereal disease appear, we undertake a genre analysis with the help of genre categories added to the corpus. The analysis shows that at the beginning of the century, references to these diseases were most likely to appear within historical works, while the end of the century witnesses an increase in references to venereal disease in scientific and medical texts.
Survival or death
Authors: Walker Terry , Kytö Merja 
Published: June 2022

Abstract
This quantitative and qualitative study examines the chronological development of the possessive determiners mine, my, thine, and thy in the Early Modern English Medical Texts corpus (EMEMT), focusing on the influence of phonological environment and text category, as well as noting lexical items with which mine and thine commonly occur. The pattern of decline for mine and thine, the phonological context in which they are found, and the collocations identified resemble those found in previous research, but rather than occurring in more formal texts as suggested by previous research, these forms predominantly occur in the more “popular” medical text categories, those with a wider readership, and particularly in texts that are more speech-like in nature (cf. Kytö and Walker 2020).
Developmental changes of ABR wave 5 latency to click and tonal stimulation at different intensities in infants
Authors: Geal-Dor Miriam , Fichman Sveta , Adelman Cahtia 
Published: June 2022

Background
The ABR is useful for estimation of hearing thresholds and is considered an objective test since cooperation of the infant is not required. However, wave 5 identification and threshold determination are often based on the audiologist's subjective judgement. The aim of the present study is to describe the developmental changes in ABR wave 5 latency to different stimuli and intensities in infants of different ages.

Materials and methods
Data from the files of 294 normal hearing infants were used in a retrospective analysis. The latency of wave 5 brainstem component of the ABR to click and tonal stimuli at different intensities down to threshold were measured.

Results
The wave 5 latency to click was shorter than for tonal stimuli. Furthermore, the rate at which latency of wave 5 decreased as a function of stimulus intensity was more pronounced over the higher intensities. The shortening of wave 5 latency was also more rapid over the first few months in response to the higher frequencies.

Discussion and conclusions
Latency values obtained were similar to those described in the literature; wave 5 latency for different frequencies followed the tono-topic organization of the cochlea and the decrease in latency followed neural maturation. Further investigation is needed to determine if the latency values at threshold in infants with hearing loss are similar.
End group engineering enabling organic solar cells with high open-circuit voltage
Authors: Zou Yingping , Sun Chaoyuan , Xu Xiang , Zhou Zhixiang , Luo Xiaoyan , Lu Xinhui , Hu Yunbin , Yuan Jun , Xia Xinxin 
Published: June 2022

Abstract
To investigate the influence of thiophene-fused indanone or thieno[3,2-b]thiophene-fused indanone on acceptors, we designed and synthesized three molecules BTP-CC, BTP-TTC and BTP-TC. Impressively, a high open-circuit voltage (V
oc) of 0.98 V was achieved in BTP-CC based device, which is one of the highest values based on A-DA′D-A type acceptors to date. The small ΔE
HOMO (0.05 eV) between PBDB-T and BTP-TTC resulted in the inefficient exciton dissociation and charge transfer. Despite obtaining a relatively high V
oc of 0.95 V, BTP-TTC based organic solar cell (OSC) displayed poor short-circuit current density (J
sc) and efficiency. Compared with BTP-CC and BTP-TTC, BTP-TC exhibited red-shifted absorption and down-shifted energy levels. Benefiting from the increased crystallinity and the stronger intermolecular interaction, the device of PBDB-T:BTP-TC achieved improved charge dissociation, enhanced charge transport and suppressed charge recombination. Eventually, BTP-TC based OSC realized a higher efficiency of 13.57% with V
oc of 0.86 V, J
sc of 22.64 mA cm–2 and fill factor of 0.70. This systematic work provides an approach to improving V
oc and establishes a guideline for developing A-DA′D-A type acceptors with thiophene- or thieno[3,2-b]thiophene-containing end group.
Single β-Ga2O3 microbelt solar-blind photodetector with high specific detectivity, high rejection ratio and fast speed
Authors: Zheng Zhiyao , Liu Kewei , Cheng Zhen , Qiao Baoshi , Chen Xing , Zhou Chang , Yang Jialin , Ai Qiu , Zhu Yongxue , Li Binghui , Liu Lei , Shen Dezhen 
Published: June 2022

Abstract
An ideal solar-blind photodetector should possess high responsivity, low dark current, high speed, high spectral selectivity, high stability and a facile fabrication method. In this work, a high-quality single β-Ga2O3 microbelt photodetector is fabricated through low-pressure chemical vapor deposition and in situ atmospheric pressure annealing techniques. Due to the high quality and low defect density, this device shows a peak responsivity of 9.47 A W−1 at 256 nm, a dark current of 1 pA and an ultrashort fall time of 1.37 μs under 20 V bias. Moreover, an ultrahigh specific detectivity of ∼1014 Jones and an extremely large solar-blind/ultraviolet A rejection ratio of nearly 105 have also been achieved, suggesting the excellent sensitivity and wavelength selectivity of our single β-Ga2O3 microbelt photodetector. Besides that, the β-Ga2O3 microbelt photodetector exhibits excellent mechanical and long-term stabilities. Our findings provide a facile and promising route to develop high performance solar-blind UV photodetectors.
Catastrophic failure of the back facet in watt-level power long wavelength infrared quantum cascade laser
Authors: Yin Ran , Zhang Jin-Chuan , Guo Qiang-Qiang , Zhuo Ning , Zhai Shen-Qiang , Jia Zhi-wei , Liu Jun-Qi , Wang Li-Jun , Liu Shu-Man , Lu Quan-Yong , Liu Feng-Qi , Wang Zhan-Guo 
Published: June 2022

Abstract
Quantum cascade lasers (QCLs) suffer from catastrophic failure caused by serious self-heating, thus limiting their output power and working stability. In this study, we observed a distinctive failure morphology on the back facet of watt-level power QCL emitting at λ ∼ 7.7 µm. The failure was caused by a massive localized current and the channel of the massive current can be observed in the cavity. Because the massive current significantly increased temperature nearby, two burned holes were formed around the channel. A 3D thermal model shows that the back facet is a vulnerable location for failure because light absorption by the high-reflectance metal coating increases the facet temperature significantly. However, the starting point of the massive current has a certain distance from the facet which is the hottest location in the cavity. Therefore, we conduct a hypothesis that the cause of the massive current is thermal strain relaxations induced by temperature gradient. We calculated the positions of the relaxation points and one of them correspond with the failure starting point found experimentally. The strain relaxation damaged the active region, thus leading to the formation of the massive current.
The impact of ion chamber components on k

B,Q
for reference dosimetry in MRgRT
Authors: Navarro Campos Júlia , de Pooter Jacco , de Prez Leon , Jansen Bartel 
Published: June 2022

Abstract
For reference dosimetry in MRgRT, k

B,Q
is used to correct for the impact of the magnetic field on the chamber calibration coefficient. It has been demonstrated that for accurate simulation of k

B,Q
the dead volume (DV) must be considered. This work goes one step further by analysing the contribution of secondary electrons generated in the various chamber components to k

B,Q
. The Farmer-type chamber PTW 30013 geometry was modelled for two different DVs. Monte Carlo simulations were performed for a 60Co source and a 7 MV MRI-linac and the model was validated against measurements. Both parallel (α = 0° or 180°) and perpendicular (α = 90° or 270°) orientations of the chamber and the magnetic (B) field were considered, and several B-field strengths between 0 T and 1.5 T. To study the dose contribution to the reduced volume (RV = cavity — DV) from the secondary electrons produced in certain components of the chamber the labelling of the particles was implemented in the PENELOPE user code PENMAIN. A separate model with each solid component of the chamber modelled as liquid water was used to investigate the impact of material choice on k

B,Q
. Results show that simulated k

B,Q
values agree better with the measured k

B,Q
when the DV is considered. It is demonstrated that small components of the chamber impact k

B,Q
considerably, since the contribution to the RV-dose from the bodies closer to the RV is higher than without B. Moreover, it is seen that the impact to the dose in the RV is reduced when the material of each component is modelled as liquid water. Therefore, chamber design and, to a lesser extent, choice of material affect k

B,Q
, and an accurate geometrical model of the chamber components and its further validation are important for correct calculations of k

B,Q
.
Machine learning enabled fast evaluation of dynamic aperture for storage ring accelerators
Authors: Wan Jinyu , Jiao Yi 
Published: June 2022

Abstract
For any storage ring-based large-scale scientific facility, one of the most important performance parameters is the dynamic aperture (DA), which measures the motion stability of charged particles in a global manner. To date, long-term tracking-based simulation is regarded as the most reliable method to calculate DA. However, numerical tracking may become a significant issue, especially when a plethora of candidate designs of a storage ring need to be evaluated. In this paper, we present a novel machine learning-based method, which can reduce the computation cost of DA tracking by approximately one order of magnitude, while keeping sufficiently high evaluation accuracy. Moreover, we demonstrate that this method is independent of concrete physical models of a storage ring. This method has the potential to be applied to similar problems of identifying irregular motions in other complex dynamical systems.
Lithium battery attenuation estimation method based on curvature analysis and segmented high-order Gaussian fitting
Authors: Xu J , Zu G W , Yu F J , Song S B , Yu Y , Cui C H , Sun D B 
Published: June 2022

Abstract
Lithium battery has been widely used in various areas, and accurate estimation of battery states is vital to efficient and safe application of batteries. Of all the states, life attenuation is essential to batteries. To improve the estimation accuracy of lithium battery life attenuation, a battery attenuation estimation method based on curvature analysis and segmented Gaussian fitting is designed. The designed method firstly utilizes Cardinal spline curve to smooth the battery attenuation curve. Then, a curvature analysis method is used to segment the life attenuation curve into different sections. Then, a least square linear fitting is used to fit the segmented curves. Except the segmented curve with better linear fitting performance, the remaining segmented curves are fitted with high-order Gaussian fitting. Experiments indicates that the designed method can accurately express the characteristics of different battery life stages.
Transmitting-side AC fault ride-through strategy for LCC-CNPC hybrid DC system
Authors: Wang Xin , Zhao Chengyong , Xuan Jiazhuo , Lu Yi 
Published: June 2022

Abstract
The LCC-CNPC hybrid DC power supply technology is more suitable for application scenarios such as distribution network DC transmission, island DC transmission, border guard posts, etc. However, the AC fault at the sending end will interrupt the power transmission of the LCC-CNPC hybrid DC system, which affects the operation of the DC transmission system. This paper proposes a fault ride-through strategy, which can reduce the voltage on the inverter side to different degrees through a set of control strategies such as increasing the modulation ratio of the inverter side, dynamically adjusting the reactive power, and online switching of cascaded modules. This strategy can adapt to different degrees of voltage sag of the AC bus on the rectifier side, and maintain the system power transmission capability after the AC system at the sending end fails. This strategy improves the fault ride-through capability of the LCC-CNPC hybrid DC system. Finally, a simulation model was established on the PSCAD/EMTDC simulation platform, and the effectiveness of the strategy in this article was verified by comparing and analyzing the simulation results of the AC voltage drop at the sending end.
A Novel LED Driving Power Supply with High Power Factor and Low Total Harmonic Distortion
Authors: Liu Kang , Duan Caiwei 
Published: June 2022

Abstract
proposing a new type of LED driving power supply which is based on buck-boost cascade quad and analysing it in this paper. The main circuit topology structure is based on a quadratic buck and a buck-boost converter. They share the same switch through cascading which not only simplify the topology but also control strategy, reducing the cost of the control circuit. Eliminate the input current dead-time problem of the original quadratic buck topology by adopting two-stage cascade structure. The main circuit topology improves the power factor and ameliorates the input current THD as well. Meanwhile, making the duty cycle of the switch operates in a more plausible area. Finally, relevant experiments demonstrate that the theoretical analysis is correct.
Battery storage systems in electric power grid: A review
Authors: Mviri Franck Soleil Mpio 
Published: June 2022

Abstract
Renewable energy within the utility grid has increased during the previous decade. Severe issues have been raised about the dependability, effectiveness, and efficiency of energy infrastructure. Therefore, energy storage devices have considerably enhanced the network’s accuracy and reliability. Battery energy storage systems (BESS) are among the greatest widely used storage solutions because they have several advantages over traditional power sources, including fast and accurate response, flexibility, and predictability. They are regarded as a reasonable alternative to the threat of climate change. This paper provides a comprehensive evaluation of the BESS’s optimum size targets, limitations, methodology, benefits and disadvantages. Furthermore, energy storage technologies and improved application targets have been presented and discussed for greater clarity. This study focuses primarily on BESS deployments, methodologies, and environmental impact. BEES innovations and achievements for electrical networks are also compared to other energy storage technologies. Concerns and obstacles are discussed to offer researchers in BESS a comprehensive picture. Finally, this study provides several essential ideas that economists and practitioners can use to design a fruitful, robust, efficient, and resilient BESS for a brighter and more optimal deployment.
An Analysis of Insulation Defects and Improvements of Opening/Closing Coil
Authors: Wang Guishan , Li Hongkun , Li Yinghong , Huang Songqiang , Zhao Yan 
Published: June 2022

Abstract
The insulation defects in Opening/Closing coil of circuit breaker were studied in this paper by analysing the structure of coil, the current of coil when operating, causes and characteristics of internal defects. The results show that the insulation defects caused as coil manufacturing will produce local overheating or inter-turn short circuit under the operating current. Faulty coil does not affect performances of circuit breaker. However the DC resistance decreases, coil current increases and waveform is abnormal, and the correctness of the analysis was verified by return test and anatomy. Finally, effective protection measures to the Opening/Closing coil of circuit breaker were proposed and a pulse detection method which can effectively detect defects in coils was introduced. The practice shows that the pulse detection method significantly improves the qualified rate of the coil.
Research on Relay Protection and Security Automatic Equipment Based on the Last Decade of Big Data
Authors: Wang Jingjing , Ma Yingxin , Liu Miao , Huang Tianxiao , Xin Guangming , Zhuang Bo 
Published: June 2022

Abstract
The analysis of equipment record, defects and action events of relay protection and security automatic equipment has been carried out in the last decade since the establishment of an electric power company on the basis of relay protection relay protection statistics analysis and operation management module. It can be seen that the growth rate of security and stability control devices is the highest, which is mainly due to the large-scale grid connection of new energy sites; it should strengthen the operation and maintenance of capacitor protection, and stock up spare parts that are prone to frequent defects, such as triggering-power module of capacitor protection for FSC in the severe electromagnetic environment; the number of primary equipment faults and protection actions shows seasonal characteristics, most of which occur in windy, summer thunderstorm weather. The data-driven screening of familial defects, evaluation of operation and maintenance strategy for aged equipment and spare parts management have been actively explored to improve lean management.
Study on Thermal Process and Microstructure & Properties of High Strength Automotive Steel
Authors: Ji Yong , Chen Zhi Wen , Wan Wen 
Published: June 2022

Abstract
This paper studies how the Nb content affected mechanical properties and microstructures of automotive steel processed by quenching and tempering (Q-T) and quenching-partitioning-tempering (Q-P-T) with the help of tensile testers, X-ray diffractometers, scanning electron microscopes, transmission electron microscopes and other equipment. It was demonstrated that when the Nb content remained the same, Agt (total elongation at maximum force), A (elongation after fracture) and R
m·A (the product of strength with ductility) of the steel processed by Q-P-T were higher than those of the steel processed by Q-T; and when the steel was treated by the same thermal process, as the Nb content increased, its R
p0.2 (yield strength) and R
m (tensile strength) would grow, while A
gt, A and R
m·A would rise first and then decline. No matter if treated by Q-T or Q-P-T, the microstructures of the steel containing 0% and 0.03% of Nb separately were always lath martensite and film-like retained austenite located between laths. When processed by Q-P-T, the steel containing 0.03% Nb saw the largest strength-ductility product. This was because Nb could help refine the sizes of the original austenite grain and the lath martensite and precipitate nano-sized NbC; and the Q-P-T process was more effective in thickening the film-like retained austenite in steel and promoting the dispersed precipitation of the NbC.
Analysis of the IGBT Module with Bonding Wire Failure Based on Transient Thermal Impedance
Authors: Gao Jing , Lv Zhirui , Lu Yi , Song Peng , Zhao Yuan , Xu Guangda , Yang Minxiang 
Published: June 2022

Abstract
Insulated gate bipolar transistor(IGBT) modules are widely used in inverters as power switching devices. In actual working conditions, the failure of bonding wires is one of the most common failure modes. In the current device reliability evaluation, the influence of bonding wire failure is ignored, which may easily cause the subsequent evaluation results to deviate from the reality. In this paper, the influence of the gradual failure of the bonding wire on the transient thermal impedance of the device is explored, and the electro-thermal coupling model of the device is constructed. The simulation results show that the transient thermal impedance of the device increases with the gradual failure of the bonding wire. An experimental platform for transient thermal resistance measurement was built to verify the accuracy of the simulation results.
Research about Wire-like Structure Iron Oxide Anode for Lithium-ion Batteries
Authors: Zhao Wenyu 
Published: June 2022

Abstract
Nano scaled iron oxides have attracted much attention as the anode materials of the lithium-ion batteries, because of its high theoretical capacity, high-capacity retention compared with bulk iron oxides and current commercialized graphite anode. Other benefits including rich abundance, environmental friendliness, low cost and even low toxicity even make it possible to be commercialized. However, problems such as the capacity loss over the first cycle and the capacity retention over the long run are still not satisfying. Thus, this work presents wire-like Fe3O4 core-shell NPs, synthesized by MFI method and high temperature annealing, for using as the anode of lithium-ion batteries. And the wire-like core-shell structure of this material was estimated to have a better electrochemical performance by reducing the aggregation particles and providing a stable nanostructure. In addition to the analysis of the characterization tests, analysis on the electrochemical tests was done in this work, including Cyclic voltammogram and galvanostatic charge and discharge. And the wire-like Fe3O4 core-shell NPs was estimated to show a 1000 mAh g−1 over 100 cycles. Furthermore, future work and challenges from the aspect of synthesizing conditions and further modification of wire-like Fe3O4 core-shell NPs were briefly discussed.
Influence of pitch control method of offshore medium speed wind power based on lateral damping strategy on blade vibration
Authors: Wang Dandan , Luo Zhenkun , Peng Engao , Zhang Yongyang 
Published: June 2022

Abstract
The operating conditions of offshore wind turbines are complex due to the coupling effects of wind waves and other factors. The blade is subjected to uneven load for a long time, which not only increases the difficulty of control and causes fatigue damage, but also leads to the vibration of the tower and affects the service life of the wind turbine. This article mainly GH simulation software was used to simulate sea under variable load condition, based on join the lateral damping strategy, by comparing the independent variable pitch and variable pitch unified control method, analyzed the low frequency vibration of blade root and spindle hub, verified the effectiveness and control advantages of the independent variable pitch control method with lateral damping. It provides effective control measures to solve the vibration problems of the unit and improves the operation reliability.