bluuebunny/crossref_metadata_2025_split huggingface dataset:
A high precision VIS/NIR dynamic goniometer-spectrometer
Authors: Vishnyakov Gennady , Yurin Alexander , Minaev Vladimir , Golopolosov Alexander 
Published: June 2023

Abstract
We present a method for measuring the refractive index (RI) and spectral characteristics of transparent triangular prisms based on the minimum deviation technique. The proposed method has been developed to automatically measure RI simultaneously for three different wavelengths to determine the spectral dependence of RI. A high precision dynamic goniometer with a He-Ne ring laser and continuously rotating autocollimation mirror was used to implement the proposed method. A set of reference prisms made of optical glass were experimentally studied and the measurement uncertainty budget was estimated. The obtained values of the expanded measurement uncertainty did not exceed 4.6 × 10−6 for near-infrared and 1.2 × 10−5 for visible wavelength ranges with a coverage factor k = 2 (95% level of confidence). It is shown that this method can be used for high-precision measurements of the RI and determine the spectral characteristics.
Optimization of ear electrodes for SSVEP-based BCI
Authors: Zhao Huiqing , Zheng Li , Yuan Miao , Wang Yijun , Gao Xiaorong , Liu Ruping , Pei Weihua 
Published: June 2023

Abstract

Objective. Current ear electrodes often require complex placing or long stimulation durations to achieve good detection of steady-state visual evoked potential (SSVEP). To improve the practicability of ear electrode-based SSVEP-BCI (brain-computer interface) system, we developed a high-performance ear electrode that can be easily placed. Approach. Hydrogel based disposable and replaceable semi-dry electrodes are developed to improve the contact impedance and wear feeling. The best combination of electrodes for SSVEP-BCI application around the ear is optimized by assessing the electrode on volunteers, and the performance of the electrode was compared with that of the occipital electrode. Main results. The developed ear hydrogel electrode can achieve an impedance close to that of the wet electrode. Three combinations of ear electrode groups demonstrate high information transfer rate (ITR) and accuracy in SSVEP-BCI applications. According to the rating of the comprehensive assessment and BCI performance in the online session, the behind-aural electrode is the best electrode combination for recording SSVEP in the ear region. The average preparation time is the shortest, and the average impedance is the lowest. The ITR of the behind-aural electrode based SSVEP-BCI system can reach 37.5 ± 18 bits min−1. The stimulus duration was as low as 3 s compared to 5 s or 10 s in other studies. Significance. The accuracy, ITR, and wear feeling can be improved by introducing a semi-dry ear electrode and optimizing the position and the combination of ear electrode. By providing a better trade-off between performance and convenience, the ear electrode-based SSVEP-BCI promises to be used in daily life.
Commissioning of a hadron blind detector for dielectron measurement in pA reactions at J-PARC
Authors: Kanno K. , Aoki K. , Arimizu D. , Ashikaga S. , Ebata K. , Honda R. , Ichikawa M. , Kajikawa S. , Kimura Y. , Kondo T.K. , Kyan S. , Morino Y. , Murakami H. , Murakami T.N. , Nakai W. , Nakasuga S. , Naruki M. , Nonaka T. , Noumi H. , Ogata N. , Ozawa K. , Sako H. , Sato S. , Sekimoto M. , Shirotori K. , Takahashi T.N. , Takaura Y. , Tatsumi R. , Tsukui K. , Yahiro K. , Yokkaichi S. 
Published: June 2023

Abstract
The J-PARC E16 experiment measures mass spectra of low-mass vector mesons,
ρ, ω, and ϕ, in nuclei via e
+
e
- decays. Vector mesons are produced in
pA reactions. A spectrometer with a large acceptance and a high-intensity beam up to 1
× 1010 protons per ∼2-sec duration pulse are utilized to collect a sufficient number
of vector mesons. We have developed a spectrometer, which has two types of electron
identification detectors: a hadron blind detector (HBD) and a lead-glass calorimeter.
Commissioning runs have been performed at the J-PARC high-momentum beam line. The HBD
successfully observed on average 11 ± 1 photoelectrons for an incident electron. We achieved
the pion rejection of 0.9 ± 0.2% with the electron detection efficiency of 61 ± 4% for
the HBD, which was consistent of the expected performance.
Integration of CVD graphene in gaseous electron multipliers for high energy physics experiments
Authors: Orlandini G. , Brunbauer F.M. , Coletti C. , Convertino D. , Doser M. , Floethner K.J. , Janssens D. , Lisowska M. , Mishra N. , Oliveri E. , Ropelewski L. , Scharenberg L. , Starke U. , van Stenis M. , Utrobicic A. , Veenhof R. 
Published: June 2023

Abstract
To enhance the performance of micro-patterned gaseous detectors (MPGDs) to meet the
challenging requirements of future high energy physics (HEP) experiments, two-dimensional (2D)
materials are attractive candidates to address the back flow of positive ions, which affects
detector performance by distorting electric field lines. In this context, graphene is promising
to work as selective filter for ion back flow suppression, being transparent to electrons while at
the same time blocking ions. Also, graphene membranes can physically separate drift and
amplification regions of the detectors, offering additional flexibility in the choice of gas
mixtures and allowing independent optimizations of detector sensitivity and electron
multiplication processes. Here we present an approach to integrate graphene grown via chemical
vapor deposition (CVD) on gaseous electron multiplier (GEM) prototypes via a wet transfer
procedure in order to suspend graphene over thousands of holes with 60 μm diameter and overcome
the challenges encountered due to process steps involving liquids, mostly related with the
capillary effects during drying and evaporation of them. In order to overcome the risk of damaging
the membrane and decreasing the yield of suspended 2D material membranes, critical point dryer
(CPD) and inverted floating method (IFM) procedures are investigated. In addition to the
necessity to cover the full holes in the active area, polymeric residuals have to be minimized in
order to evaluate the graphene transparency at the electron energies (i.e., < 15 eV) typically
obtained in the operating conditions, measurements in these energy ranges are still not deeply
investigated.
Neural-network-based level-1 trigger upgrade for the SuperCDMS experiment at SNOLAB
Authors: Meyer zu Theenhausen H. , von Krosigk B. , Wilson J.S. 
Published: June 2023

Abstract
The extended physics program of the SuperCDMS SNOLAB dark
matter search experiment aims to maximize the sensitivity to
low-mass dark matter. To realize this, an upgrade of the existing
level-1 trigger of the data acquisition system is proposed by making
use of a recurrent neural network to be implemented on the trigger
FPGA. This provides an improved amplitude estimator and signal-noise
discriminator based on the combined information of filtered traces
from individual detector channels. The architecture and
configuration of this neural trigger are discussed in this article,
and the improvements in key performance indicators such as the
efficiency, resolution, and noise rate are quantified based on
signal simulations and noise data. Based on the findings in this
proof of concept, the trigger threshold is expected to be lowered by
∼ 22%.
The high level applications for the HEPS Linac
Authors: Zhao Y.-L. , Ji H.-F. , Lu X.-H. , Meng C. , Peng Y.-M. , Jiao Y. , Li J.-Y. , Xu G. , Xu H.-S. 
Published: June 2023

Abstract
The High Energy Photon Source (HEPS) is a 6 GeV diffraction-limited storage ring based
light source, which is under construction in Beijing, China. The HEPS accelerator consists of a
Linac, a booster, a storage ring and three transfer lines. Installation and high-power
conditioning of the Linac has been completed. For beam commissioning and measurements of the HEPS
Linac, it is necessary to develop high level applications (HLAs). The development of the Linac
HLAs, based on the framework named Python accelerator physics application set(Pyapas), has been
completed. All the applications are physics quantity based, including measurement applications,
control applications and monitoring applications. All the applications have been tested and
verified on virtual accelerator. The results show the validity of the algorithm and indicate that
the developed applications could meet the requirements of Linac commissioning. All the
applications have been deployed to the actual machine environment and communication and control
test with hardware system have been completed.
Interactive effects of air pollutants and temperature on incidence of dementia: a prospective cohort study
Authors: Wang Jiali , Gao Yinyan , Lin Yijuan , Sun Xuemei , Ye Shuzi , Shi Yan , Wu Irene X Y , Dai Wenjie , Xiao Fang 
Published: June 2023

Abstract
Mounting evidence has linked air pollution with dementia and temperature modifies the association of air pollution with other disease. However, their interactions on dementia are unclear. We used a prospective cohort study (the UK Biobank) included 498 660 adults without cognitive impairment or dementia at baseline and followed up for 11.50 years (5734 907 person-years). We applied Cox proportional hazards regression with time-varying exposures to examine the effects of air pollutants [particulate matter (PM2.5, PM10), nitrogen oxides (NO2, NO
X
) and sulphur dioxide (SO2)], the mean and variability of seasonal temperature, and their interactions on dementia. During the follow-up time, we ascertained 4119 cases of dementia. We observed a higher hazard of incident dementia for 1 μg m−3 increase in SO2 (hazard ratio [HR] = 1.11; 95% confidence interval [CI]: 1.08, 1.14), NO2 (HR [95% CI] = 1.02 [1.01, 1.02]), NO
X
(HR [95% CI] = 1.01 [1.00, 1.01]), PM2.5 (HR [95% CI] = 1.03 [1.02, 1.05]), and PM10 (HR HR [95% CI] = 1.02 [1.00, 1.03]). A lower risk of dementia in summertime temperature variability (HR for 1 °C increment above 1.27 °C = 0.61; 95% CI: 0.51, 0.72) was found. We observed a nonlinear relationship between higher risk of dementia and higher summer temperatures, and strong U-shaped relation of both wintertime temperature and wintertime temperature variability with dementia. We found the significantly synergistic effect between SO2 and summertime temperature (p < 0.001), the antagonistic effect between NO2 (p = 0.043), NO
X
(p = 0.026) and summertime temperature variability. Participants in a lower social economic position dominated susceptibility in temperature-air pollution interaction on dementia. In conclusion, some evidence of interactive effects between summer temperature and air pollutants was found, but no consistent interaction could be identified during the winter. Our study added weight to the evidence of air pollutants, temperature and their interaction on the onset of dementia.
Promoting future sustainable utilization of rare earth elements for efficient lighting technologies
Authors: Zhong Chen , Geng Yong , Ge Zewen , Rui Xue , Liang Jingjing , Wei Wendong 
Published: June 2023

Abstract
Energy efficient lights, such as fluorescent lamps (FLs) and light-emitting diode (LED) lamps, can greatly help energy saving, which is critical for achieving carbon neutrality in the building sector. Yttrium, europium, and terbium are three essential rare earth elements (REEs) for energy efficient lighting. However, due to the ongoing lighting technology transition from FLs to LED lamps, the demands for yttrium, europium, and terbium have decreased significantly. It resulted in oversupplies of these three REEs in the lighting sector, indicating an economically and environmentally unsustainable supply chain. This study aims to estimate the supply and demand dynamics of yttrium, europium, and terbium in China from 2021 to 2060 under China’s carbon neutrality target by applying a dynamic-material-flow-analysis framework. Key flows and stocks along their life cycles are examined. Results show that the annual demands for yttrium, europium, and terbium in China’s lighting sector will decrease by 87%–100% from 2021 to 2060 under two demand scenarios. Driven by the demands for other co-produced critical REEs, the overall growing REEs supply will result in high surplus risks of yttrium and europium. Meanwhile, terbium deficit risk deserves more attentions due to its demand growth in other fields. Such surpluses of these three REEs in 2060 under six combined demand and supply scenarios are estimated to reach between 71 727 tonnes and 274 869 tonnes for yttrium, 530 tonnes and 1712 tonnes for europium, and −1360 tonnes (i.e. deficit) and 540 tonnes for terbium. Recycling activities of major co-produced REEs, such as neodymium, and the export expansion of surplus products can effectively mitigate such surplus risks. Finally, policy recommendations are proposed to improve the overall REEs efficiency by addressing the supply–demand imbalance and mitigating corresponding environmental impacts.
Modified toric code models with flux attachment from Hopf algebra gauge theory
Authors: Conlon A , Pellegrino D , Slingerland J K 
Published: June 2023

Abstract
Kitaev’s toric code is constructed using a finite gauge group from gauge theory. Such gauge theories can be extended with the gauge group generalized to any finite-dimensional semisimple Hopf algebra. This also leads to extensions of the toric code. Here we consider the simple case where the gauge group is unchanged but furnished with a non-trivial quasitriangular structure (R-matrix), which modifies the construction of the gauge theory. This leads to some interesting phenomena; for example, the space of functions on the group becomes a non-commutative algebra. We also obtain simple Hamiltonian models generalizing the toric code, which are of the same overall topological type as the toric code, except that the various species of particles created by string operators in the model are permuted in a way that depends on the R-matrix. In the case of

Z

N

gauge theory, we find that the introduction of a non-trivial R-matrix amounts to flux attachment.
Enhanced dual-band absorption of graphene mediated by an aluminum metastructure
Authors: Khan Ghulam Abbas , Lu Yonghua , Wang Pei 
Published: June 2023

Abstract
Graphene absorption from the visible to infrared spectrum has great potential and broad applications in miniature of modern optoelectronic biosensors and photodetectors. However, graphene has zero bandgap energy, which limits its absorption to 2.3% in the visible and infrared spectrums. Here, we propose a metastructure to optimize graphene absorption in the visible to near-infrared frequency regions. The metastructure, comprising an array of aluminum square blocks (Al-SBs) on a graphene layer, a silica spacer, and an Al reflector, is investigated for absorption enhancement. This work deciphers the effect of the periodicity of decorated Al-SBs on the evolution of dual-band absorption in single-layer graphene under normal incidence. The electromagnetic signatures of two excited modes indicate that surface plasmons and magnetic dipole plasmons are mediators of absorption. The investigation into the impact of geometrical parameters illustrates that the coexisting phenomena of a relative broad peak and a relative sharp peak have been achieved simultaneously with high efficiency. The dynamic manipulation of surface plasmons and magnetic dipole plasmons presents great potential for a diverse range of applications, such as sensing and imaging. By controlling the periodicity of Al-SBs, it is possible to achieve active control of surface plasmon resonance, and a detection range of 300 nm is observed. Dynamic control of the magnetic dipole plasmon is successfully achieved by modifying the electrical environment of the graphene layer, which is realized by altering the underlying spacer material. Collectively, the findings of this study demonstrate the significant potential of the suggested metastructure for its prospective applications in optoelectronic devices, including biosensors, photovoltaics, and photodetectors that rely on the dynamic control of surface and magnetic plasmon resonances.
Analytical model for predicting coverage in suspension waterjet shot peening and its influence on fatigue
Authors: Ma Yongtao , Li Chunfan , Sun Ning , Liu Lanrong , Lu Chunsheng , Wang Junlong , Zhang Bin 
Published: June 2023

Abstract
Suspension waterjet peening is an emerging technology for surface modification. Coverage is a key factor affecting the integrity of a modified material surface, however such an experimental method that can be utilized for precise control has not yet been established. To determine the numerical value of coverage after surface peening treatment, In this paper, a coverage analytical method was proposed and then verified by the results through experiments. Furthermore, to explore the impact of high coverage on surface integrity, a large-scale coverage peening modification was performed on 18CrNiMo7-6 carburized steel specimens using a specialized suspension waterjet equipment. The results indicate that coverage has a significant impact on roughness and compressive residual stress field, with the highest improvement on surface and their maximum values reaching 51.6% and 24.7%, respectively. It is shown that the fatigue performance of the specimens can be significantly enhanced.
Preparation and properties of PVA nanofibers with spiral ordered internal structure
Authors: Zhao Lei , Zhu Ting , Wei Li , Wang Qianwen , Zhao Jumei , Yi Shixiong , Wang Jun 
Published: June 2023

Abstract
The spinning solution of PVA(polyvinyl alcohol) was chosen as the spiral spinning research object. With enough needle length, the macromolecules were straightened and aligned under laminar flow theory. The spiral spinning needle controlled the spiral twisting of the straightened macromolecules. The motion trajectory of titanium dioxide(nanoparticles) in nanofibers was photographed by TEM(transmission electron microscope) under the action of spiral centripetal force, which directly verified the feasibility of the spiral spinning principle. The greater the number of spiral spinning needles, the tighter the spiral arrangement inside the nanofibers and the greater the crystallinity of the nanofibers. The SEM(scanning electron microscope) observation revealed that the diameter of nanofibers had a relationship with the number of spiral spinning needles. When the spiral number of spinning needle was 13, the tensile and bursting properties of the nanofiber membrane were optimal, but when the spiral number of spinning needle was 19, the pore structure, electrical resistance, and antibacterial properties of the nanofiber membrane were optimal.
A study of grid failure mode drivers and methods for accelerated life testing of a 30 cm diameter ion thruster
Authors: SUN Mingming , LONG Jianfei , CHEN Juanjuan , YANG Wei , GUO Weilong , CHEN Xinwei 
Published: June 2023

Abstract
In view of the high cost caused by the 1:1 lifetime verification test of ion thrusters, the lifetime acceleration test should be considered. This work uses the PIC-MCC (Particle-in-Cell Monte-Carlo Collision) method to analyze the five failure factors that lead to the failure of the accelerator grid of a 30 cm diameter ion thruster under the working mode of 5 kW. Meanwhile, the acceleration stress levels corresponding to different failure factors are obtained. The results show that background pressure has the highest stress level on the grid’s erosion. The accelerator grid aperture’s mass sputtering rate under the rated vacuum degree (1 × 10−4 Pa) of 5 kW work mode is 8.78 times that of the baseline vacuum degree (1 × 10−6 Pa), and the mass sputtering rate under worse vacuum degree (5 × 10−3 Pa) is 5.08 times that of 1 × 10−4 Pa. Under the influence of the other four failure factors, namely, the voltage of the accelerator grid, upstream plasma density, the screen grid voltage and mass utilization efficiency, the mass sputtering rates of the accelerator grid hole are 2.32, 2.67, 1.98 and 2.51 times those of the accelerator grid hole under baseline condition, respectively. The ion sputtering results of two 30 cm diameter ion thrusters (both installed with new grids assembly) after working for 1000 h show that the mass sputtering rate of the accelerator grid hole under vacuum conditions of 5 × 10−3 Pa is 4.54 times that under the condition of 1 × 10−4 Pa, and the comparison error between simulation results and test results of acceleration stress is about 10%. In the subsequent ion thruster lifetime verification, the working vacuum degree can be adjusted according to the acceleration stress level of background pressure, so as to shorten the test time and reduce the test cost.
Development of a Revised Version of Subjective Memory Complaints Questionnaire in Taiwan: A Preliminary Study
Authors: Ku Yi-Ting , Chiu Pai-Yi , Hua Mau-Sun , Liao Yu-Chi , Chang Hsin-Te 
Published: June 2023

Abstract

Objectives
Research has suggested that subjective memory complaints (SMC) are predictive of cognitive decline in cases of Alzheimer’s disease; however, multidimensional characteristics of SMC make it difficult to formulate causal links. The Subjective Memory Complaints Questionnaire (SMCQ) has proven effective in capturing the nature of SMC. In this study, we developed a revised version of SMCQ (SMCQ-R) with corresponding normative data for application in Taiwan.

Methods
This study recruited 100 cognitively normal participants (&gt; 45 years) stratified according to demographic characteristics. Assessments were performed to evaluate test-retest reliability, criterion-related validity, and construct validity of SMCQ-R. SMCQ-R scores of 20 matched patients with mild cognitive impairment (MCI) were also compared with those of normal participants to test construct validity.

Results
Reliability of SMCQ-R was satisfactory (0.81–0.95). Factor analysis revealed a three-factor structure: everyday memory problems (EMP), recent severe memory problems (RSMP), and long-term memory problems (LTMP). EMP and RSMP scores were negatively associated with objective cognitive function (r = −.20 to .39). Depressive symptoms were positively associated with all factors (r = .23–.33). Age was positively associated with total (b = 0.09, p &lt; .05) and EMP scores (b = 0.06, p &lt; .01). MCI patients obtained higher scores (p &lt; .05) on all subscales. SMCQ-R scores discriminated between normal and MCI individuals (area under the curve = 0.77). This study established a norm based on scores adjusted to control for effects of age.

Conclusions
SMCQ-R has sound psychometric properties and could potentially be used as a tool to assess SMC in clinical settings.
Structure-based pathogenicity relationship identifier for predicting effects of single missense variants and discovery of higher-order cancer susceptibility clusters of mutations
Authors: Wang Boshen , Lei Xue , Tian Wei , Perez-Rathke Alan , Tseng Yan-Yuan , Liang Jie 
Published: June 2023

Abstract
We report the structure-based pathogenicity relationship identifier (SPRI), a novel computational tool for accurate evaluation of pathological effects of missense single mutations and prediction of higher-order spatially organized units of mutational clusters. SPRI can effectively extract properties determining pathogenicity encoded in protein structures, and can identify deleterious missense mutations of germ line origin associated with Mendelian diseases, as well as mutations of somatic origin associated with cancer drivers. It compares favorably to other methods in predicting deleterious mutations. Furthermore, SPRI can discover spatially organized pathogenic higher-order spatial clusters (patHOS) of deleterious mutations, including those of low recurrence, and can be used for discovery of candidate cancer driver genes and driver mutations. We further demonstrate that SPRI can take advantage of AlphaFold2 predicted structures and can be deployed for saturation mutation analysis of the whole human proteome.