bluuebunny/crossref_metadata_2025_split huggingface dataset:
Point of Care Virtual Surgical Planning and 3D Printing in Facial Feminization Surgery
Authors: Sharaf Basel , Kuruoglu Doga , Bite Uldis , Morris Jonathan M. 
Published: December 2022

AbstractThe use of virtual surgical planning (VSP) and three-dimensional printing (3DP) technologies in the routine facial feminization surgery practice has gained a significant popularity over the past few years. The clinical applications of them are claimed to improve safety, accuracy, and efficiency of facial feminization surgeries. In this article, we review and discuss the current applications of VSP and 3DP in different facial feminization procedures.
Photoelectron tomography with an intra-cavity velocity-map imaging spectrometer at 100 MHz repetition rate
Authors: Oelmann J.-H. , Heldt T. , Guth L. , Nauta J. , Lackmann N. , Wössner V. , Kokh S. , Pfeifer T. , López-Urrutia J. R. Crespo 
Published: December 2022

We present a compact velocity-map imaging (VMI) spectrometer for photoelectron imaging at 100 MHz repetition rate. Ultrashort pulses from a near-infrared frequency comb laser are amplified in a polarization-insensitive passive femtosecond enhancement cavity. In the focus, multi-photon ionization (MPI) of gas-phase atoms is studied tomographically by rotating the laser polarization. We demonstrate the functioning of the VMI spectrometer by reconstructing photoelectron angular momentum distributions from xenon MPI. Our intra-cavity VMI setup collects electron energy spectra at high rates, with the advantage of transferring the coherence of the cavity-stabilized femtosecond pulses to the electrons. In addition, the setup will allow studies of strong-field effects in nanometric tips.
Implementation of high-resolution spectroscopy for ion (and electron) temperature measurements of the divertor plasma in the Tokamak à configuration variable
Authors: Martinelli L. , Mikitchuck D. , Duval B. P. , Andrebe Y. , Blanchard P. , Février O. , Gorno S. , Elaian H. , Linehan B. L. , Perek A. , Stollberg C. , Vincent B. ,   TCV Team
Published: December 2022

High resolution spectroscopy on the Tokamak à Configuration Variable (TCV) divertor plasma provided Doppler broadening measurements to infer the ion and neutral temperature of injected helium gas. This paper presents the Divertor Spectroscopy System’s (DSS) access to He II ion temperature measurements over a broad range, ≈0.5–15 eV, with an uncertainty of &lt;10% for most of the studied plasma discharges. TCV’s shaping flexibility was employed to validate these measurements against Thomson scattering across the DSS lines of sight. In detachment-related experiments, Ti(He II) ≃ Te, making this diagnostic a reliable thermometer along the divertor leg plasma over the wide range of magnetic equilibria and divertor configurations achievable in TCV. A detailed description of the diagnostic hardware, data analysis, and sources of uncertainty is presented.
Fabrication of tungsten tips with controllable shape by a two-step rapid reciprocating electrochemical etching method
Authors: Sun Yiming , Deng Hanwen , Liu Xinyu , Kang Xiaoming 
Published: December 2022

Traditional electrochemical etching methods for the needle of a liquid metal ion source (LMIS) easily produce an exponential profile with an uncontrollable tip length and apex radius. Meanwhile, a ledge forms between the needle tip and the needle rod under the etching of the meniscus, which becomes an obstacle for the flow and replenishment of the liquid metal. This paper proposed a two-step rapid reciprocating etching method, which aims to fabricate LMIS tungsten needles with controllable tip length and apex radius, and also with a smooth transition region between the needle tip and the needle rod. In the first step of rough machining, the needle rapidly reciprocates up and down in the electrolyte and rotates to produce a uniform conical profile. However, an ellipsoidal residual portion is generated concomitantly at the needle tip. In the second step of finish machining, the needle shifts down for a given distance and continues to reciprocate until the sharp tip is formed. The tip length fabricated varied from 0.59 to 5.53 mm at different reciprocating strokes. The apex radius ranged from 0.3 to 0.7 µm, and can also be increased to 2 µm by extra reciprocate etching in the electrolyte to meet the LMIS working requirement. A variable named transitivity was defined to quantitatively describe the smoothness of the region between the tip and rod during the etching process. The experimental results showed that a rotation speed of 600 rpm combined with a reciprocating speed of 0.5 mm/s can significantly improve the transitivity of the needle. Those fabricated needle tips have been tested for the indium LMIS and the maximum emission current of the needle tip reached 12 µA.
Computational description of surface hydride phases on Pt(111) electrodes
Authors: Hanselman Selwyn , Calle-Vallejo Federico , Koper Marc T. M. 
Published: December 2022

Surface platinum hydride structures may exist and play a potentially important role during electrocatalysis and cathodic corrosion of Pt(111). Earlier work on platinum hydrides suggests that Pt may form clusters with multiple equivalents of hydrogen. Here, using thermodynamic methods and density functional theory, we compared several surface hydride structures on Pt(111). The structures contain multiple monolayers of hydrogen in or near the surface Pt layer. The hydrogen in these structures may bind the subsurface or reconstruct the surface both in the set of initial configurations and in the resulting (meta)stable structures. Multilayer stable configurations share one monolayer of subsurface H stacking between the top two Pt layers. The structure containing two monolayers (MLs) of H is formed at −0.29 V vs normal hydrogen electrode, is locally stable with respect to configurations with similar H densities, and binds H neutrally. Structures with 3 and 4 ML H form at −0.36 and −0.44 V, respectively, which correspond reasonably well to the experimental onset potential of cathodic corrosion on Pt(111). For the 3 ML configuration, the top Pt layer is reconstructed by interstitial H atoms to form a well-ordered structure with Pt atoms surrounded by four, five, or six H atoms in roughly square-planar and octahedral coordination patterns. Our work provides insight into the operando surface state during low-potential reduction reactions on Pt(111) and shows a plausible precursor for cathodic corrosion.
The African swine fever threat to Australia
Authors: Ward Michael P. 
Published: December 2022

African swine fever (ASF) is not a new disease: its impact on domestic pig production in Africa was first documented 100 years ago. For most of the twentieth century ASF was considered a disease of Africa, with occasional incursions into Europe and the western hemisphere. However, during the past two decades, ASF has emerged as a truly global diseases, invading parts of Europe and spreading throughout Asia. By 2020, ASF had spread as far as Papua New Guinea. Why ASF has spread such distances so quickly is not well understood, however the movement of both live pigs and pork products undoubtedly is a major contributing factor. The role that wild pigs play in the spread and maintenance of ASF virus is a topic of ongoing debate. Adding to the complexity of the epidemiology of this disease, ASF virus can be transmitted by some tick species in particular ecosystems. Australia is vulnerable to an ASF virus incursion. The threat is further heightened by the uncertainty regarding whether our large and widely distributed feral pig population would become endemically infected, creating a barrier to eradication of the disease. Preventing an incursion of ASF virus relies on ongoing risk assessments based on where the virus currently exists, and the disease pathways for introduction. Within the Australian context, regulatory enforcement and surveillance of illegally important pork products is paramount to minimise the treat that ASF poses.
Electron-impact ionization of the 4p6 subshell in strontium
Authors: Borovik O 
Published: December 2022

Abstract
Electron-impact ionization of the 4p6 subshell in Sr atoms has been studied by observing the excitation dynamics of the electron spectra arising from the Auger decay of the 4p

5

n
l

n

′

l

′

states. The measurements were carried out in the energy range of incident electrons from the 4p6 ionization threshold at 26.92 to 600 eV. At near-threshold impact energies, the effect of post-collision interaction was found for most of the Auger lines. The identification of 21 lines observed between 10 and 14 eV electron energy showed that the 4p6 Auger spectrum of Sr atoms is completely described by the configurations 4p54d5s, 4p55s2 and 4p54d2. The cross sections for the lowest quartet and doublet states in 4p54d5s and 4p55s2 configurations have been obtained with the maximum values of (

3.5
±
0.5
)
×

10

−
18

cm2 at 52 eV for the (4p54d5s)4P

5

/

2

state and (

3.0
±
0.5
)
×

10

−
17

cm2 at 112 eV for the (4p55s2)2P

3

/

2

state. Configuration interaction and excitation-autoionization processes determine the energy behavior of the excitation cross sections of doublet states. The lower limit of the total ionization cross section of the 4p6 subshell in Sr has been obtained with the maximum value of (

6.2
±
1.2
)
×

10

−
17

cm2 at 92 eV.
Halo EFT for 31Ne in a spherical formalism
Authors: Elkamhawy Wael , Hammer Hans-Werner 
Published: December 2022

Abstract
We calculate the electromagnetic properties of the deformed one-neutron halo candidate 31Ne using Halo effective field theory (Halo EFT). In this framework, 31Ne is bound via a resonant P-wave interaction between the 30Ne core and the valence neutron. We set up a spherical formalism for 31Ne in order to calculate the electromagnetic form factors and the E1-breakup strength distribution into the 30Ne-neutron continuum at leading order in Halo EFT. The associated uncertainties are estimated according to our power counting. In particular, we assume that the deformation of the 30Ne core enters at next-to-leading order. It can be accounted for by including the J

P
= 2+ excited state of 30Ne as an explicit field in the effective Lagrangian.
An unsupervised intelligent fault diagnosis research for rotating machinery based on NND-SAM method
Authors: Zhang Haifeng , Zou Fengqian , Sang Shengtian , Li Yuqing , Li Xiaoming , Hu Kongzhi , Chen Yufeng 
Published: December 2022

Abstract
Currently, intelligent fault diagnostics of rotating machinery have significantly contributed to mechanical health monitoring. However, real-world labeled data obtained from high-value equipment such as gas turbine units, pumps, and other rotating components are occasionally insufficient for model training. This article proposes an unsupervised deep transfer learning model that can directly extract features from the data itself, thus reducing the number of training samples required. The well-designed neural network with a domain-specific antagonism mechanism aligns features between the source and target domains and so makes data-driven decisions more efficiently. The parameter-free gradient reversal layer is used as an optimizer, considerably reducing the cross-domain discrepancy and accelerating convergence. The average multi-classification accuracy under transferable conditions reaches 97%, 91%, and 95% over three cases of fault diagnosis. Moreover, the time consumption of the system improves by more than 3.5% compared to existing models. The results reveal that the suggested strategy is suitable for a challenging unlabeled dataset and represents a significant improvement over existing unsupervised learning techniques.
Improved decentralized GNSS/SINS/odometer fusion system for land vehicle navigation applications
Authors: Mu Mengxue , Zhao Long 
Published: December 2022

Abstract
Due to low cost and complementary performance advantages, global navigation satellite system (GNSS)/ strapdown inertial navigation system (SINS) integrated systems have established themselves in certain areas of land vehicle navigation. However, this integrated system cannot maintain reliable positioning solutions in challenging environments due to the inherent fragility of GNSS signals and time accumulated errors of a stand-alone SINS. To address this challenge, a multi-source information fusion system based on the decentralized system architecture and sequential Kalman filter for a land vehicle is proposed, which can fuse information from an odometer and motion aided constraints selectively and adaptively in different driving environments. Moreover, a comprehensive calibration and compensation strategy is designed to enhance the information fusion. On the one hand, a real-time calibration algorithm is designed to estimate the time-varying odometer scale factor and the misalignment between the inertial measurement unit (IMU) and vehicle body frame when GNSS signals are available. On the other hand, the forward velocity error caused by the lever arm, and the non-zero lateral velocity generated by the turning maneuver are compensated by the introduced velocity compensation method. A real car experiment in urban areas is carried out to illustrate the effectiveness of the proposed system. It shows that the proposed decentralized GNSS/SINS/odometer fusion system can maintain an average horizontal positioning root mean square error (RMSE) of 1-meter level when GNSS signals are cut off about 1-2 min. In addition, compared with the traditional centralized fusion structure, the proposed decentralized fusion structure can mitigate the horizontal positioning RMSE of the whole trajectory from 2.95 m to 0.59 m, which verifies that it can obtain better performance for the application of low-cost sensors in complex GNSS environments.
Graphene FETs with high and low mobilities have universal temperature-dependent properties
Authors: Gosling Jonathan H , Morozov Sergey V , Vdovin Evgenii E , Greenaway Mark T , Khanin Yurii N , Kudrynskyi Zakhar , Patanè Amalia , Eaves Laurence , Turyanska Lyudmila , Fromhold T Mark , Makarovsky Oleg 
Published: December 2022

Abstract
We use phenomenological modelling and detailed experimental studies of charge carrier transport to investigate the dependence of the electrical resistivity, ρ, on gate voltage, V

g
, for a series of monolayer graphene field effect transistors with mobilities, μ, ranging between 5000 and 250 000 cm2 V−1 s−1 at low-temperature. Our measurements over a wide range of temperatures from 4 to 400 K can be fitted by the universal relation

μ
=
4
/
e
δ

n

max

for all devices, where

ρ

max

is the resistivity maximum at the neutrality point and δn is an ‘uncertainty’ in the bipolar carrier density, given by the full width at half maximum of the resistivity peak expressed in terms of carrier density, n. This relation is consistent with thermal broadening of the carrier distribution and the presence of the disordered potential landscape consisting of so-called electron–hole puddles near the Dirac point. To demonstrate its utility, we combine this relation with temperature-dependent linearised Boltzmann transport calculations that include the effect of optical phonon scattering. This approach demonstrates the similarity in the temperature-dependent behaviour of carriers in different types of single layer graphene transistors with widely differing carrier mobilities. It can also account for the relative stability, over a wide temperature range, of the measured carrier mobility of each device.
Weighted sum of harmonic signals for direct imaging in magnetic particle imaging
Authors: Liu Yanjun , Hui Hui , Liu Sijia , Li Guanghui , Zhang Bo , Zhong Jing , An Yu , Tian Jie 
Published: December 2022

Abstract

Objective. Magnetic particle imaging (MPI) is a novel radiation-free medical imaging modality that can directly image superparamagnetic iron oxide tracers (SPIOs) with high sensitivity, temporal resolution, and good spatial resolution. The MPI reconstruction task can be formulated mathematically as a Fredholm integral problem, but the concrete inversion is not easily possible because of the particle dynamics or scanner issues. Measurement based system matrix inversion takes these factors into account, but prior measurement and calibration are time consuming. Approach. We proposed a direct imaging method based on the weighted sum of harmonic signals. The harmonic signals with spatial information are obtained by the short-time Fourier transform, and odd harmonic components are selected for recombination and then mapped to the sampling trajectory to image the concentration distribution of SPIOs. In addition, we adopt a normalized-weighted sum of harmonics to improve the resolution of the native image. Main results. The effectiveness of the proposed method is verified by simulation imaging experiments and our in-house scanner-based experiments. Quantitative evaluation results show that compared with traditional methods, the structural similarity improved by 48%, mean square error decreased by 88%, and signal-to-artifact ratio increased by 2.5 times. Significance. The proposed method can rapidly image the concentration distribution of nanoparticles without any prior calibration measurements and reduce the blur of MPI images without deconvolution, which has the potential to be implemented as a multi-patch imaging method in MPI.
Miniaturized frequency selective rasorber with absorption in S–C band and transmission in X band
Authors: Dai Yilin , Fu Yang , Chen Shiju , Wu Jiong , Liu Shanshan , Shen Zhaoyang , Yang Helin 
Published: December 2022

Abstract
A miniaturized frequency selective rasorber (FSR) that has a wide absorption band in the S–C band and a wide transmission band based on X-band is presented in this paper. The FSR consists of a lossy layer loaded with lumped resistors and a bandpass layer with a three-screen cascade structure, which has the advantages of low insertion loss, wide passband bandwidth, and stable structural performance in the operating band. The rectangular spiral resonant (RSR) is loaded in the middle of the four arms of the cross to form a lossy layer. The aggregate resistance is loaded between the units to form a closed loop, which will absorb the detection signal and thus greatly reduce the radar cross section (RCS). The bandpass layer is divided into three layers, with two identical square patches coupled with a layer of complementary cross grids to form a multi-order bandpass filter. Furthermore, the operating mechanism of low absorption and high transmission is analyzed and verified based on equivalent circuit theory and impedance matching theory. The simulation results show that the 1 dB transmission band of the FSR is 8.0–12.5 GHz and the 10 dB absorption band is 2.8–6.6 GHz. The highest transmittance reaches over 97% at 10.0–11.5 GHz and the lowest insertion loss is 0.012 dB. It has important theoretical reference value and great application in the field of the new stealthy radome.
Topology design for leader-follower coherence in noisy asymmetric networks
Authors: Chen Jing , Sun Weigang , Wang Jun 
Published: December 2022

Abstract
In this paper, we aim to study the effect of the leader’s positions in leader-follower coherence quantified by the spectrum in noisy asymmetric networks with a set of hub nodes. In order to compare the impact of leader selection in different ways on the studied coherence, we choose a family of ring-trees networks to conveniently assign the leaders and hubs. Based on the regular network topology and matrix theories, we obtain analytical solutions for the leader-follower coherence regarding network parameters and the number of leaders. Using these expressions, we then obtain exact relations among the coherences and show that the leader’s positions and network parameters have a profound impact on the coherence. More specifically, the network with one hub displays better coherence than the networks with two hubs. In addition, two adjacent and nonadjacent hubs lead to distinct performance of leader-follower consensus dynamics that depends on network parameters and assigned leaders in the ring or the tree network.
Fractional phase transitions of RN-AdS black holes at their Davies points*
Authors: Wang Li-Hua , He Yun , Ma Meng-Sen 
Published: December 2022

Abstract
In this study, we investigate the phase transitions of the RN-AdS black hole at its Davies points according to the generalized Ehrenfest classification of phase transition established based on fractional derivatives. Notably, Davies points label the positions at which the heat capacity diverges. According to the usual Ehrenfest classification, second-order phase transitions occur at these points. For the RN-AdS black hole, the Davies points can be classified into two types. The first type corresponds to extreme values of the temperature, and the second type corresponds to the infection point (namely the critical point) of temperature. Employing the generalized Ehrenfest classification, we determine that the orders of phase transition at the two types of Davies points are different, that is, we note an order of 3/2 for the first type and 4/3 for the second type. Thus, this finer-grained classification can discriminate between phase transitions that are expected to lie in the same category, providing new insights leading toward a better understanding of black hole thermodynamics.
Is the magic texture of Majorana neutrinos immanent in Dirac nature?
Authors: Hyodo Yuta , Kitabayashi Teruyuki 
Published: December 2022

Abstract
Magic textures are successful candidates of the correct texture for Majorana neutrinos. In this study, we demonstrate that several types of magic textures of Majorana neutrinos are approximately immanent in the flavor mass matrix of Dirac neutrinos. In addition, the normal mass ordering of Dirac neutrino masses is slightly preferable to inverted mass ordering in the context of magic textures.
R-Symmetric NMSSM*
Authors: Xu Shuai , Zheng Sibo 
Published: December 2022

Abstract
It is well known that the observed Higgs mass is more naturally explained in the next-to-minimal supersymmetric standard model (NMSSM) than in the minimal supersymmetric standard model. Without any violation of this success, there are variants of the NMSSM that can lead to new phenomenologies. In this study, we propose a new variant of the NMSSM by imposing an unbroken R symmetry. We first identify the minimal structure of such a scenario from the perspective of both simplicity and viability, then compare the model predictions to current experimental limits, and finally highlight the main features that differ from those of well-known scenarios.
Hidden conformal symmetry and pair production near the cosmological horizon in Kerr-Newman-Taub-NUT-de Sitter spacetime*
Authors: Siahaan Haryanto M. 
Published: December 2022

Abstract
We show that the study of the hidden conformal symmetry that is associated with the Kerr/CFT correspondence can also apply to the cosmological horizon in the Kerr-Newman-Taub-NUT-de Sitter spacetime. This symmetry allows employing some two dimensional conformal field theory methods to understand the properties of the cosmological horizon. The entropy can be understood by using the Cardy formula, and the equation for the scattering process in the near region is in agreement with that obtained from a two point function in the two-dimensional conformal field theory. We also show that pair production can occur near the cosmological horizon in Kerr-Newman-Taub-NUT-de Sitter for near extremal conditions.