bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Bayesian approach for simultaneous spike/LFP separation and spike sorting
Authors: Le Cam Steven , Jurczynski Pauline , Jonas Jacques , Koessler Laurent , Colnat-Coulbois Sophie , Ranta Radu 
Published: March 2023

Abstract

Objective. The aim of this paper is to present a novel method for simultaneous spike waveforms extraction and sorting from the raw recorded signal. The objective is twofold: on the one hand, to enhance spike sorting performance by extracting the spike waveforms of each spike and, on the other hand, to improve the analysis of the multi-scale relationships between spikes and local field potentials (LFP) by offering an accurate separation of these two components constitutive of the raw micro recordings. Approach. The method, based on a Bayesian approach, is fully automated and provides a mean spike shape for each cluster, but also an estimate for each singular spike waveform, as well as the LFP signal cleaned of spiking activity. Main results. The performance of the algorithm is evaluated on simulated and real data, for which both the clustering and spike removal aspects are analyzed. Clustering performance significantly increases when compared to state-of-the-art methods, taking benefit from the separation of the spikes from the LFP handled by our model. Our method also performs better in removing the spikes from the LFP when compared to previously proposed methodologies, especially in the high frequency bands. The method is finally applied on real data (ClinicalTrials.gov Identifier: NCT02877576) and confirm the results obtained on benchmark signals. Significance. By separating more efficiently the spikes from the LFP background, our method allows both a better spike sorting and a more accurate estimate of the LFP, facilitating further analysis such as spike-LFP relationships.
Optimizing the HSX stellarator for microinstability by coil-current adjustments
Authors: Gerard M.J. , Geiger B. , Pueschel M.J. , Bader A. , Hegna C.C. , Faber B.J. , Terry P.W. , Kumar S.T.A. , Schmitt J.C. 
Published: March 2023

Abstract
The optimization of helically symmetric experiment (HSX) for reduced microinstability has been achieved by examining a large set of configurations within a neighborhood of the standard operating configuration. This entailed generating a database of more than 106 magnetic-field configurations for HSX by varying the currents in external coils. Using a set of volume-averaged metrics and gyrokinetic simulations, this database has helped to identify a set of configurations that can be used to regulate trapped-electron-mode stability in HSX. This set of configurations is also found to correlate flux-surface elongation and triangularity with an increase in magnetic-well depth, an increase in rotational transform, and low neoclassical heat-flux relative to the standard quasi-helically-symmetric configuration. These results demonstrate sensitivity of plasma behavior in response to changes in a 3D magnetic field to both neoclassical and gyrokinetic models, and the experimental potential in HSX to explore turbulence optimization. This perturbative optimization approach is not unique to HSX, and can readily be deployed on existing fusion devices to identify novel magnetic-fields to be used in turbulence-optimization experiments.
Solvent effect on structural and optical properties of Titania nanoparticles for pH sensing applications
Authors: Islam S , Bakhtiar H , Alhashem Z H 
Published: March 2023

Abstract
Herein, solvents i.e., methanol, ethanol, propanol, and butanol-assisted titania nanoparticles (TNPs) are synthesized by low-temperature sol-gel method for pH sensing applications. The influence of solvent on the morphology, roughness, porosity, refractive index, and sensing properties are investigated. The relatively high average roughness 2.5 nm and lower refractive index 1.69 is observed for B-TNPs. The sensitivity of butanol-assisted phenol red encapsulated TNPs is observed 2.32 counts/pH.
First-principles study on crystal structures and bulk modulus of CuInX2 (X = S, Se, S-Se) solar cell absorber
Authors: Mazalan E , Aziz M S A , Amin N A S , Ismail F D , Roslan M S , Chaudhary K 
Published: March 2023

Abstract
Chalcopyrite semiconductors are widely used as absorbers in thin film solar cells, especially flexible solar cells, due to their high power conversion efficiency. They also have interesting mechanical properties, making them promising materials for flexible, light, and thin solar cells. In this work, we report the first-principle calculations of the lattice constant and bulk modulus for CuInS2, CuInSe2, and CuIn(S,Se)2 absorber solar materials. All calculations are performed using plane wave as implemented in the Quantum ESPRESSO software package in the framework of density functional theory using PBE-GGA approximations and ultrasoft pseudopotentials. The calculated lattice constant correlates well with the available experimental study. The energy-volume and pressure-volume relations are described using the third order of Birch-Murnaghan’s equation of state to calculate the bulk modulus of the absorber solar material, which is associated to the hardness of a material under particular conditions. The values of bulk modulus obtained for CuInS2 and CuInSe2 are in good agreement with available theoretical results, except for CuIn(S,Se)2, which have been calculated and reported for the first time.
Non-contact salinity measurement using a bifurcated fiber bundle sensing
Authors: Johari Abdul Rahman , Abdullah Mundzir , Singaravadivelan Raj Kumar , Daud Suzairi , Ismail F. D. , Krishnan Ganesan 
Published: March 2023

Abstract
A non-contact salinity sensor using a bifurcated fiber bundle sensing is proposed. The sensor was operated based on intensity modulation due to the variation of displacement between the tip of the probe with the surface of the sample. The light that reflected back into the receiving fiber bundle is analysed and correlation with the salinity of the samples has been performed. This allows the performance of the sensor towards salinity to be quantified based on the front slope, back slope and peak intensity. The proposed configuration has been calibrated and then experimentally validated. The calibration curve can be plotted based on three parameters: peak intensity, front slope and back slope. The peak intensity curve exhibits the highest sensitivity of 1.52×105 a.u./M with the resolution of 4.2×10-2 M. The ubiquitousness of sensor configuration and non-contact measurement make the proposed sensor a viable alternative to standard commercial devices.
The effect of atmospheric plasma jet treatment on honeydew melon seed
Authors: Abdul Halim N H , Shahrudin N F , Safaai S S , Raja Ibrahim R K 
Published: March 2023

Abstract
Non-thermal atmospheric gas plasma is popular for its flexibility and inexpensive cost. NTP is used in food preservation, medical therapy, biotechnology, and agriculture. This study examines how atmospheric plasma jets affect honeydew seed germination, water intake, and growth. In this research, high voltage (1.0–1.4 kV) was varied at a certain frequency with Argon gas. Honeydew melon seeds were a plasma treat sample. Untreated and treated seeds were separated at first. The seeds were examined for a few days after plasma treatment with varying voltage and exposure times. Wider pores reduce contact angle and promote wettability. Optical Contact Angle (OCA) measured the water droplet contact angle. Finally, plasma- treated seeds were compared to untreated seeds to determine plasma’s impact on seed quality.
Measurement of the very rare

K+→π+νν¯

decay at the NA62 experiment
Authors: Brizioli Francesco 
Published: March 2023

Abstract
The

K

+

→

π

+

ν

ν

¯

decay, with a very precisely predicted branching ratio of less than 10−10, is among the best processes to reveal indirect effects of new physics. The NA62 experiment reports the branching ratio measurement BR(

K

+

→

π

+

ν

ν

¯

) =

1.06

−
0.34

+
0.40

|

s
t
a
t

± 0.009|
syst
) · 10−10 at 68% CL, based on the observation of 20 signal candidates with an expected background of 7.0 events from the total data sample collected at the CERN SPS during 2016-2018. This provides evidence for the very rare

K

+

→

π

+

ν

ν

¯

decay, observed with a significance of 3.4σ. This measurement is also used to set limits on BR(K
+ → π

+X), where X is a new feebly interacting scalar or pseudo-scalar particle, foreseen in several new physics scenarios.
Search for the

KL→π0νν¯

decay at the J-PARC KOTO experiment
Authors: Shiomi Koji 
Published: March 2023

Abstract
The KOTO experiment at the J-PARC 30GeV Main Ring aims to study the rare decay

K
L

→

π
0

ν

ν
¯

. This decay directly breaks the CP symmetry and is highly suppressed in the Standard Model (SM). In addition, the theoretical uncertainties on the decay is only a few percent. Those features make this decay one of the best probes to search for new physics beyond the SM.
We had found new background sources from the analysis of the 2016-2018 data set. Thus, we took measures against the new background events.
In this paper, we briefly introduce the results of the 2016-2018 data analysis. We thus report the new detectors and analysis tools that we introduced to reduce the new background events and also the other types of background events. Finally, we report the status of the 2021 data analysis.
Kaon semileptonic form factors at the physical quark masses on large volumes in Nf
= 2 + 1 lattice QCD
Authors: Yamazaki Takeshi , Ishikawa Ken-ichi , Ishizuka Naruhito , Kuramashi Yoshinobu , Namekawa Yusuke , Taniguchi Yusuke , Ukita Naoya , Yoshié Tomoteru 
Published: March 2023

Abstract
We present our results for the kaon semileptonic form factors calculated by using two sets of the PACS10 configuration, whose physical volumes are more than (10 fm)4 at the physical light and strange quark masses in the Nf
= 2+1 lattice QCD. The configurations were generated using the Iwasaki gauge action and Nf
= 2 + 1 stout-smeared clover quark action. The form factors near zero momentum transfer q
2 can be calculated thanks to the large volume. Using our data, a q
2 interpolation and continuum extrapolation are carried out simultaneously. The value of |Vus
| is determined using the result of the form factors at q
2 = 0 in the continuum limit. Our result of |Vus| is compared with the one determined from the CKM matrix unitarity and with those determined using recent lattice results.
First measurement of the K
± → π
0
π
0
μ
±
ν decay
Authors: Korotkova Anna 
Published: March 2023

Abstract
The first observation of the decay K
± → π
0
π
0
μ
±
v (

K

μ
4

00

) by the NA48/2 experiment at the CERN-SPS is reported. From 2437 selected signal candidates with 15% background contamination, the branching ratio of the decay is measured in the restricted kinematical space of the squared dilepton mass above 0.03 GeV2/c
4 and extrapolated to the full kinematical space. The result is found to be in agreement with the R form factor from 1-loop Chiral Perturbation Theory.
Measurement of structure dependent radiative K+
→ e+νγ decay at J-PARC
Authors: Shimizu Suguru 
Published: March 2023

Abstract
The J-PARC E36 experiment is aiming at searching for lepton universality violation by accurately measuring the ratio of branching ratio of the K
+ → e
+
ν(γ) (K

e2(γ)) to K
+ → μ
+
ν(γ) (K

μ2(γ)) decays. The experiment was performed at J-PARC employing a stopped K
+ method in conjunction with a 12-sector iron-core superconducting toroidal spectrometer. Charged particle momenta were determined by reconstructing charged particle trajectories in the spectrometer. Particle identification for e
+ and μ
+ was carried out using an aerogel Cherenkov counter and a lead-glass Cherenkov counter, as well as by measuring the time-of-flight between TOF counters. The peak structure due to K

e2(γ) decay was successfully observed in the e
+ momentum spectrum after the e
+ requirement in the PID analysis. The structure dependent
radiative K
+ → e
+
νγ (

K

e
2
γ

SD

) events were selected by imposing photon hits in the CsI(Tl) calorimeter or the GSC counter. The experimental spectra were accurately reproduced by the Monte Carlo simulation, indicating a correct understanding of the experimental conditions. The Br(

K

e
2
γ

SD

) value relative to Br(K

e2(γ)) was determined from the

K

e
2
γ

SD

and K

e2(γ) yields corrected for the detector acceptances. The Br(

K

e
2
γ

SD

)/Br(K

e2(γ)) ratio was derived to be 1.19 ± 0.07
stat
± 0.04
syst
in the CsI(Tl) analysis and 1.25 ± 0.14
stat
± 0.04
syst
in the GSC analysis.
Two-loop Electroweak Corrections to ϵK
Authors: Kvedaraitė Sandra 
Published: March 2023

Abstract
The parameter εK measures CP violation in the neutral kaon system. It is a sensitive probe of new physics and plays a prominent role in the global fit of the Cabibbo-Kobabyashi-Maskawa matrix. As one of the first discovered sources of CP violation, it has been measured in experiment to permil precision. A simple reparametrization of the efFective Hamiltonian has been recently shown to drastically reduce the perturbative errors coming from the charm-quark corrections, making the electroweak corrections relevant. In this proceedings, I will present the two-loop electroweak corrections to ϵK
.
Searches for lepton flavour and lepton number violating K
+ decays at the NA62 experiment
Authors: Jerhot Jan 
Published: March 2023

Abstract
The NA62 experiment at CERN collected the world’s largest dataset of charged kaon decays to di-lepton final states in 2016-2018, using dedicated trigger lines. Upper limits on the rates of several K
+ decays violating lepton flavour and lepton number conservation, obtained by analysing this dataset, are reported.
Search for Light Neutral Bosons in the TREK/E36 Experiment at J-PARC
Authors: Dongwi Dongwi H. 
Published: March 2023

Abstract
The Standard Model (SM) represents our best description of the subatomic world and it has been very successful in explaining how elementary particles interact under the influence of the fundamental forces. Despite its far reaching success in describing the building blocks of matter, the SM is still incomplete; falling short to explain dark matter, baryogenesis, neutrino masses and much more. The E36 experiment conducted at J-PARC in Japan, allows for sensitivity to search for light U(1) gauge bosons, in the muonic K
+ decay channel. Such U(1) bosons could be associated with dark matter or explain established muon-related anomalies such as the muon gµ
− 2 value, and the proton radius puzzle. A scintillating fiber target was used to stop a beam of positively charged K mesons. The K
+ products were detected with a large-acceptance toroidal spectrometer capable of tracking charged particles with high resolution, combined with a large solid angle CsI(TI) photon detector and particle ID systems. A realistic simulation was employed to search for these rare decays in the mass range of 20–100 MeV/c
2. Preliminary results of the upper limits for the A′
branching ratio Br(A′
) extracted at 95% CL, will be discussed.
Evidence for WZW anomaly in the coherent reaction K
+
Cu → K
+
π
0
Cu
Authors: Obraztsov Vladimir 
Published: March 2023

Abstract
On the statistics of ∼ 8·109 positively charged kaons passing through a thin copper target a coherent production of the K
+
π
0
- pair is studied. Contributions of Coulomb, strong interactions and their interference to the total cross section are determined in the region of K*(892). In the distribution over K
+
π
0 invariant mass, an effect is seen, which can be explained by the interference of the chiral anomaly and the K* (892) amplitudes. From that, the ratio of the measured chiral anomaly amplitude and the theoretical one is obtained: Aexp/Ath
= 0.9 ± 0.24 (stat.)±0.3 (syst.).
Test Method and Application of High-Temperature Operating Life of Automobile Chips
Authors: Wen Qinghao , Zhai Ruiqing , Ji Guotian , Zhu Tong , Li Zheng , Hu Yue 
Published: March 2023

Abstract
The high temperature operating life (HTOL) test is an important item in the reliability test of automobile chips. The goal of the HTOL test is to evaluate the durability of automobile chip products under high-temperature loads. Based on the common-used standards, calculation models, and related research experience of evaluating the reliability of electron devices at home and abroad, this paper focuses on the model of the high-temperature durability test model of automobile chips and analyzes different factors affecting the high-temperature operating life test. The general calculation and analysis model and method of the high-temperature operating life test of automobile chips are presented in this paper, which provides a reference for determining the indicators of the high-temperature operating life test of automobile chips.
Inversion of Equivalent Electromagnetic Parameters of Multilayer Absorbing Materials Based on Simulated Annealing Algorithm
Authors: He Song , Su Tong , He Ling , Chen Jinsong , Xia Liang 
Published: March 2023

Abstract
Multilayer gradient absorbing materials are difficult to be modeled and simulated in practical applications. To solve this problem, a method of the inversion of equivalent electromagnetic parameters of multilayer absorbing materials based on the simulated annealing algorithm is proposed in this paper. The reflectivity of the multilayer absorbing material in different forms of polarization and obliquely incident at different angles is calculated, and then the simulated annealing algorithm is used to calculate the polarization reflectivity and incidence angle reflectivity of the single-layer material in the same thickness within different combinations of electromagnetic parameters to find out the reflectivity curve that is most similar to the reflectivity curve of the wide angle domain of the multilayer absorbing material, namely the desired equivalent electromagnetic parameters. Finally, the simulation verification is performed. The material within the equivalent electromagnetic parameters should be applied to the simple, wedged, and physically-simulated radar cross-section (RCS), and the result is consistent with that of the application of the multilayer absorbing material to the wedged and physically simulated RCS. This suggests that the absorption property of the material within the equivalent electromagnetic parameters calculated with this algorithm is equivalent to that of the multilayer gradient absorbing material.
Short-term Load Forecasting Method Based on Daily Load Curve Clustering and SVM-WD
Authors: Wei Jian , Chen Zhigang , He Fanjun , Qi Qi , Jiang Jingxuan 
Published: March 2023

Abstract
In recent years, as the proportion of residential electricity consumption in the urban distribution network has increased, it has become important to improve the accuracy of residential load forecasting. To extract more data features and make up for the lack of input features, it is proposed to use daily load curve clustering to determine similar days, wavelet decomposition to process historical load values, ADF test, and grey correlation analysis to determine the relationship between variables and historical load values. A method for short-term load forecasting with support vector machine models is proposed. The final experimental results show that the short-term load forecasting method based on daily load curve clustering and SVM-WD has higher forecasting accuracy than the comparison model.
Simulation of Multiple Acoustic Diffraction Based on An Iterative Ray Tracing Method
Authors: Yang Bo , Xu Luwen , Qiu Ni , Yang Jiaxi , Wang Guangming 
Published: March 2023

Abstract
The classical geometrical theory of diffraction is not available for simulating multiple diffractions in wave propagation. To improve the simulating accuracy for multiple diffractions, a multiple acoustic diffraction simulating method based on ray iteration tracing is proposed in this paper. In this method, the ray occurring at the edge of the wall is split into multiple sub-rays. Then, these sub-rays are continually traced based on the classical ray-tracing theory. The numerical verification demonstrates that this method is valid for simulating multiple diffractions.
Research on electric vehicle charging load based on the monte Carlo
Authors: Jia Wenchao , Chen Heng , Liu Xiaotao 
Published: March 2023

Abstract
With the increasing number of electric cars, they may become the most important load in the grid of the future. Due to the randomness of electric vehicles access to the grid, when large-scale electric vehicles are linked to the grid, they will fluctuate on the grid, resulting in the failure of the power supply mode and operation control means of the traditional distribution network to attain the optimal result. In view of this phenomenon, based on the Monte Carlo calculation and simulation, the charging load of electric vehicles is predicted, which can achieve comprehensive prediction under different kinds of electric cars, different battery capacities, different charging methods, etc, and provide theoretical and technical support for the effect analysis of electric vehicles access to power grid.
Finite Element Analysis of Thermal Management Automobile Unit
Authors: Jin Zhenghui , Zhang Shaoguo , Wang Zhao 
Published: March 2023

Abstract
In order to verify the rationality of the structural design scheme of the battery thermal management unit for a new energy vehicle, this paper uses SolidWorks to establish the geometric model of the device, and conducts harmonic response analysis of the unit according to the vibration test requirements specified in the standard for automotive air conditioners, and obtains the modal frequencies, modal shapes, and structural stress distribution of the unit. The results show that under the specified load, the stress of each part of the structure does not exceed the material yield strength, and the structure as a whole meets the design requirements, achieving the purpose of verification.
Reed Design Method of Reed-DVA
Authors: Li Yang , He Hua , Zhang Bo , Lu Kaitian , Chen Biwen 
Published: March 2023

Abstract
Based on a new type of dynamic vibration absorber, this paper studies the change rules of stiffness and stress along with five parameters of its reed: thickness, cantilever width, outer ring width, outer ring fillet radius, and inner ring fillet radius, aiming at providing guidance for designers of reed-DVA.
A Border Gateway Protocol LRA-BGP for Integrated Satellite-terrestrial Networks
Authors: Zang Jinhu , Song Shiyu 
Published: March 2023

Abstract
With the rapid development of information technology, the demand for multi-dimensional integrated information resources of air, sky, and ground in the future information service industry is increasing day by day. The integrated satellite-terrestrial networks will become an important development trend in my country’s communication network in the future. However, the movement of satellites will cause frequent topology changes, which will seriously affect the overall performance of the terrestrial network. Aiming at this problem, this paper proposes a lightweight route advertisement border gateway protocol LRA-BGP. LRA-BGP protects terrestrial networks from the high dynamics of satellites by reducing the number of advertised routes. In addition, a real network environment is also built for actual testing. The results show that LRA-BGP can reduce the bandwidth resource occupation of the ground network by 26.9%~68.8% and CPU usage by 6.17%~7.31%.