bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dodecylation of molybdenum disulfide and its electrochemical properties for hydrogen evolution reaction
Authors: Song Yiming , Yang Dongchun , Li Yunxia , Tian Sheng , Deng Qin , Liu Ru , Wang Zhaobo , Wang Xin , Hu Haiqing , Wang Yilong , Zhao Jian 
Published: August 2023

Abstract
Functionalization of MoS2 was achieved by treatment in a strongly reducing sodium naphthalene solution. Dodecyl was grafted onto MoS2 nanosheets using alkyl sulphates as electrophiles to obtain dodecylated MoS2 without affecting the MoS2 crystalline structure. Superior electrocatalytic properties are obtained for dodecylated MoS2. The polarisation curve of this nanomaterial remained constant even after 1000 consecutive cycles. This route provides a new pathway for covalent functionalization of MoS2 and might find a variety of applications, such as electrocatalysts.
Maximum mass of charged strange quark star in presence of strange quark mass (m

s
)
Authors: Saha A , Goswami K B , Roy R , Chattopadhyay P K 
Published: August 2023

Abstract
In this manuscript, we present an approach to calculate maximum mass of strange quark star having net charge inside. For this purpose we took the modified MIT bag model equation of state in presence of non-zero strange quark mass (m

s
). The general solution of Einstein field equations in presence of charge is obtained by considering a specific form of the g

rr
component of the line element according to Vaidya & Tikekar. Such metric ansatz describes a homogeneous fluid distribution which has a departure from the spherical geometry determined by the two parameters: spheroidal (λ) and curvature (R). In this approach, we find that maximum mass as well as radius both decreases with the increase of strange quark mass (m

s
). Also maximum mass increases with charge and obtained from our model is as high as 4.383 M
⊙ for maximum allowed value of charge with m

s
= 0. The stability is also studied in this model and note that our model is stable for the constraint value of parameters.
Interpreting the GeV-TeV gamma-ray spectra of local giant molecular clouds using GEANT4 simulation
Authors: Roy Abhijit , Joshi Jagdish C. , Cardillo Martina , Sarkar Ritabrata 
Published: August 2023

Abstract
Recently, the Fermi-LAT gamma-ray satellite has detected six Giant Molecular Clouds (GMCs) located in the Gould Belt and the Aquila Rift regions. In half of these objects (Taurus, Orion A, Orion B), the observed gamma-ray spectrum can be explained using the Galactic diffused Cosmic Ray (CR) interactions with the gas environments. In the remaining three GMCs (Rho Oph, Aquila Rift, Cepheus), the origin of the gamma-ray spectrum is still not well established. We use the GEometry ANd Tracking (GEANT4) simulation framework in order to simulate gamma-ray emission due to CR/GMC interaction in these three objects, taking into account the gas density distribution inside the GMCs. We find that propagation of diffused Galactic CRs inside these GMCs can explain the Fermi-LAT detected gamma-ray spectra. Further, our estimated TeV-PeV fluxes are consistent with the HAWC upper limits, available for the Aquila Rift GMC. As last step, we compute the total neutrino flux estimated for these GMCs and compare it with the IceCube detection sensitivity.
Signatures of primordial black holes in gravitational wave clustering
Authors: Libanore Sarah , Liguori Michele , Raccanelli Alvise 
Published: August 2023

AbstractThe possible existence of primordial black holes (PBHs) is an open question in modern cosmology. Among the probes to test it, gravitational waves (GW) coming from their mergers constitute a powerful tool. In this work, we study how stellar mass PBH binaries could affect measurements of the clustering of merger events in future GW surveys. We account for PBH binaries formed both in the early and late Universe and show that the power spectrum modification they introduce can be detected at ∼ 2σ-3σ(depending on some assumptions) whenever PBH mergers make up at least ∼ 60% of the overall number of detected events. By adding cross-correlations with galaxy surveys, this threshold is lowered to ∼ 40%. In the case of a poor redshift determination of GW sources, constraints are degraded by about a factor of 2. Assuming a theoretical model for the PBH merger rate, we can convert our results to constraints on the fraction of dark matter in PBHs,fPBH. Finally, we perform a Bayesian model selection forecast and confirm that the analysis we develop could be able to detect ∼30M⊙PBHs if they account forfPBH∼ 10-4– 10-3, depending on the model uncertainty considered, being thus competitive with other probes.
Multi-party private size comparison protocol under the semi-quantum condition
Authors: Wang Bing , Gong Li-Hua , Liu San-Qiu 
Published: August 2023

Abstract
Based on

d

-dimensional multiparticle maximal entangled states, a novel multi-party private comparison protocol under semi-quantum condition is proposed. With the help of a semi-honest quantum third party,

N

classical participants can determine the size relationship of their privacies while keeping them private in the devised protocol. Compared with some similar protocols, the presented protocol performs better in terms of security and qubit efficiency. In addition, the effectiveness and the correctness of our protocol are verified with some examples and proofs. By the decoy particles and the pre-shared keys, the presented protocol can defend against the internal and the external attacks.
Large-scale Dynamics of Line-driven Winds with the Re-radiation Effect
Authors: Zhu Yi , Xie Jinsen 
Published: August 2023

Abstract
Previous simulations studying winds only focus on the line force due to photons from central active galactic nuclei. What properties of the winds will be when including the re-radiation force due to the scattered and reprocessed photons (i.e., the re-radiation effect)? We perform simulations to study the large-scale dynamics of accretion disk winds driven by radiation line force and re-radiation force. For the fiducial run, we find that the re-radiation force drives stronger outflows during the early stages. When the flows get into the steadiness, the UV radiation due to spectral lines dominates total radiation and the re-radiation effect could be negligible. The opening angle of winds narrows as the initial gas density increases. The larger the gas density is, the stronger the re-radiation effect will be. For M
BH = 106
M
⊙, ε = 0.3, the outflows do become much stronger with the re-radiation effect and the winds still cannot escape from gravitational potential. We find that the detection probability of ultra-fast outflows and the properties of the winds are both consistent with the observations.
Solar Observation with the Fourier Transform Spectrometer. II. Preliminary Results of Solar Spectrum near the CO 4.66 μm and Mg i 12.32 μm
Authors: Bai Xianyong , Feng Zhiwei , Zhang Zhiyong , Deng Yuanyong , Zhu Xiaoming , Ji Kaifan , Feng Song , Yang Xiao , Song Yongliang 
Published: August 2023

Abstract
An infrared solar spectrum observed by ground-based telescopes is seriously affected by the background radiation both from the telescope and sky, relative to the visible wavelengths. Its accuracy is also influenced by the spectral resolution of the Fourier transform spectrometer. In the paper, we developed a CO2 gas cell and installed it in the sample compartment to calibrate the spectral resolution of the Bruker IFS-125HR at infrared wavelengths. The measured spectral resolution is 0.00342 ± 0.00086 cm−1 and 0.0059 ± 0.00024 cm−1 at the wavenumbers of 798 cm−1 and 2136 cm−1, respectively. We also updated a fully reflective sunlight feeding system to observe the solar spectrum near CO 4.66 μm and Mg i 12.32 μm. By quickly pointing the sunlight feeding system about 1 degree away from the solar disk center, we are able to measure the background radiation from the telescope and the sky at Huairou Solar Observing Station. After removing the background radiation, our observed solar spectrum at CO 4.66 μm is consistent with that from the National Solar Observatory. The Mg i 12.32 μm working line selected by the Accurate Infrared Magnetic Field Measurements of the Sun (AIMS) project is also identified. Our method is helpful not only for the spectral resolution calibration and background radiation correction of AIMS but also for other infrared astronomical telescopes.
An Update of the Catalog of Radial Velocity Standard Stars from the APOGEE DR17
Authors: Li Qing-Zheng , Huang Yang , Dong Xiao-Bo , Chen Jian-Jun , Luo A-Li 
Published: August 2023

Abstract
We present an updated catalog of 46,753 radial velocity (RV) standard stars selected from the APOGEE DR17. These stars cover the Northern and Southern Hemispheres almost evenly, with 62% being red giants and 38% being main sequence stars. These RV standard stars are stable on a baseline longer than 200 days (with 54% longer than one year and 10% longer than five years) with a median stability better than 215 m s−1. The average number of observations of those stars is 5 and each observation is required to have signal-to-noise ratio greater than 50 and RV measurement error smaller than 500 m s−1. Based on the new APOGEE RV standard star catalog, we have checked the RV zero-points (RVZPs) for current large-scale stellar spectroscopic surveys including RAVE, LAMOST, GALAH and Gaia. By careful analysis, we estimate their mean RVZP to be +0.149 km s−1, +4.574 km s−1 (for LRS), −0.031 km s−1 and +0.014 km s−1, respectively, for the four surveys. In the RAVE, LAMOST (for MRS), GALAH and Gaia surveys, RVZP exhibits a systematic trend with stellar parameters (mainly [Fe/H], T
eff, log g, G
BP − G
RP and G
RVS). The corrections to those small but clear RVZPs are of vital importance for these massive spectroscopic surveys in various studies that require extremely high RV accuracies.
Novel developments of refractive power measurement techniques in the automotive world
Authors: Wolf Dominik Werner , Ulrich Markus , Braun Alexander 
Published: August 2023

Abstract
Refractive power measurements serve as the primary quality standard in the automotive glazing industry. In the light of autonomous driving new optical metrics are becoming more and more popular for specifying optical quality requirements for the windshield. Nevertheless, the link between those quantities and the refractive power needs to be established in order to ensure a holistic requirement profile for the windshield. As a consequence, traceable high-resolution refractive power measurements are still required for the glass quality assessment. Standard measurement systems using Moiré patterns for refractive power monitoring in the automotive industry are highly resolution limited, wherefore they are insufficient for evaluating the camera window area. Consequently, there is a need for more sophisticated refractive power measurement systems that provide a higher spatial resolution. In addition, a calibration procedure has to be developed in order to guarantee for the comparability of the measurement results. For increasing the resolution, a measurement setup based on an auto-correlation algorithm is tested in this paper. In order to benchmark the proposed high-resolution refractive power measurement technique, a novel laser-based setup has been realized in the Volkswagen Laser Laboratory as a reference method tuned for high-accuracy measurements. Furthermore, a calibration procedure is established by using a single reference lens with a nominal refractive power of

100

k
m

−
1

. For the calibration of the entire measurement range of the system, the lens is tilted by an inclination angle orthogonal to the optical axis. The effective refractive power is then given by the Kerkhof model. By adopting the measurement and calibration procedure presented in this paper, glass suppliers in the automotive industry will be able to detect relevant manufacturing defects within the camera window area more accurately paving the way for a holistic quality assurance of the windshield for future advanced driver-assistance system (ADAS) functionalities. Concurrently, the traceability of the measurement results is ensured by establishing a calibration chain based on a single reference lens, which is traced back to international standards.
Pupil-linked arousal modulates network-level EEG signatures of attention reorienting during immersive multitasking
Authors: Lapborisuth Pawan , Koorathota Sharath , Sajda Paul 
Published: August 2023

Abstract

Objective. When multitasking, we must dynamically reorient our attention between different tasks. Attention reorienting is thought to arise through interactions of physiological arousal and brain-wide network dynamics. In this study, we investigated the relationship between pupil-linked arousal and electroencephalography (EEG) brain dynamics in a multitask driving paradigm conducted in virtual reality. We hypothesized that there would be an interaction between arousal and EEG dynamics and that this interaction would correlate with multitasking performance. Approach. We collected EEG and eye tracking data while subjects drove a motorcycle through a simulated city environment, with the instructions to count the number of target images they observed while avoiding crashing into a lead vehicle. The paradigm required the subjects to continuously reorient their attention between the two tasks. Subjects performed the paradigm under two conditions, one more difficult than the other. Main results. We found that task difficulty did not strongly correlate with pupil-linked arousal, and overall task performance increased as arousal level increased. A single-trial analysis revealed several interesting relationships between pupil-linked arousal and task-relevant EEG dynamics. Employing exact low-resolution electromagnetic tomography, we found that higher pupil-linked arousal led to greater EEG oscillatory activity, especially in regions associated with the dorsal attention network and ventral attention network (VAN). Consistent with our hypothesis, we found a relationship between EEG functional connectivity and pupil-linked arousal as a function of multitasking performance. Specifically, we found decreased functional connectivity between regions in the salience network (SN) and the VAN as pupil-linked arousal increased, suggesting that improved multitasking performance at high arousal levels may be due to a down-regulation in coupling between the VAN and the SN. Our results suggest that when multitasking, our brain rebalances arousal-based reorienting so that individual task demands can be met without prematurely reorienting to competing tasks.
Preparation and Properties of Papers Added to Formaldehyde Removal Pulp
Authors: Wei Chengping , Zhao Chuanshan , Li Hui , Li Jiehua 
Published: August 2023

Abstract
By means of scanning electron microscope, specific surface area analysis and formaldehyde removal performance comparison, calcium carbide powder and activated carbon powder were selected from five different functional powders. The calcium carbide powder and activated carbon powder were added to the pulp to prepare the base paper added to the formaldehyde removal pulp. The amount of active carbon powder and calcium carbide powder added to the pulp, the amount of retention aid used and the ratio of the two functional powders were investigated, and the microscopic morphology, pore size and porosity of the base paper added to the formaldehyde removal pulp were analyzed. The experimental results show that the best mass ratio of kraft hardwood fiber to powder is 1:1, the best amount of retention aid (based on the fiber quality) is 0.6%, the best mass ratio of activated carbon powder to calcium carbide powder is 1:1, and the formaldehyde removal rate of the prepared formaldehyde removal pulp added with base paper is 79.53% and 82.24% in 1 and 5 hours, and the average pore size and porosity are 331.50 nm and 69.25% respectively.
Study on the application of functional nanofiber membrane in wound tissue engineering
Authors: Hou Chao , Xin Binjie , Li Tingxiao , Liu Yi 
Published: August 2023

Abstract
Aiming at the characteristics of wounds prone to infection and long healing period in the healing process, the functional nanofiber dressings with functions of antibacterial and anti-inflammatory, rapid healing, drug slow release, tissue replacement, and exudate absorption are introduced, combined with the wound healing process and classified by the structure of commonly used nanofiber dressings. The research progress of nanofiber dressings in recent years is outlined, as its future development direction prospects.
TSV Filling with Copper Electro-deposition by Using Sodium 3-[[(dimethylamino) thioxomethyl] thio] Propane Sulphonate
Authors: Le Yuping 
Published: August 2023

Abstract
Through Silicon Via (TSV) is a promising microelectronic interconnection technology in Three-D integration (3D). Three-component additives are used for non-porous TSV filling. However, various experiments must be carried out to optimize the concentrations of various additives. To avoid this costly process, Two-component additives were developed. In this paper, Sodium 3-[[(dimethylamino) thioxomethyl] thio] propane sulphonate (DPS) in the TSV filling is investigated. Only by DPS in TSV copper sulfate plating, copper ions cannot reach the bottom of the micro-hole, and copper deposits at the TSV orifice. The addition of dimethyl formamide based on the structure of MPS enhances the inhibition of DPS and may show a weak inhibition during the copper plating and filling process of TSV. 0.1 g/L DPS and 1 g/L AESS, with ampere density2 mA/cm2 and a plating time of 12 h, can obtain perfect defect-free TSV filling.
Study on the effect of porosity on properties of cyanate ester composites
Authors: Gao Aijuan , Ju Kai , Sun Xiaopeng , Tian Junxia 
Published: August 2023

Abstract
Cyanate ester composites have the advantages of high-temperature resistance, low moisture absorption, excellent dielectric properties, and excellent mechanical properties. It is the most promising composite of the new generation radome. The key step in forming cyanate ester composites is thermal curing. There is no relevant experimental data on the influence of porosity on the mechanical properties of cyanate ester composites. This paper studied the influence law of different porosity on the properties of cyanate ester composites. Meanwhile, the performance data of cyanate ester composites were accumulated to provide a reference for the engineering treatment of faulty parts.
Numerical simulation study on the erosion and wear of galvanized coatings on steel structures under the action of wind and sand
Authors: Deng Lijia , Zhang Kai , Chen YiSheng , Ni HeDian 
Published: August 2023

Abstract
A three-dimensional numerical model is established by reference to the erosion test of wind-blown sand. The erosion wears characteristics of the galvanized coating under different sand erosion conditions was studied using existing experimental data and the Oka erosion model. The research results indicate that the maximum erosion rate of galvanized coating increases at first and then decreases when the sand attack angle increase, and reaches the maximum value when the sand attack angle is 30°, reaches the maximum value when the sand attack angle is 30°; the erosion rate of galvanized coating increases exponentially with the increase of wind-blown sand velocity, and there are two erosion stages: high speed and low speed. The erosion rate of galvanized coating increases when sand flux increases. The erosion rate increases linearly with the increase of sand flux at a low attack angle but at a high attack angle, and then the growth rate becomes slower. The study’s results support the protection of steel structures and the evaluation of the durability of galvanized coatings.
Design of Microbial Corrosion Assessment Model for Protective Coatings based on Combined Weight TOPSIS
Authors: Gao Chunyu , Liu Shicheng , Zhang Chuqi 
Published: August 2023

Abstract
Instrumentation has a wide range of applications in various fields. In today’s rapid development of information technology and the economy, it plays an indispensable role. The application environment of instrumentation in many fields is complex and harsh. Therefore, the requirements for instrumentation materials are also more stringent. This paper mainly focuses on the special fields of aerospace, petrochemical, marine, and nuclear energy. The application status of instrumentation and its harsh application environment have been researched. This paper researched the main corrosion failure modes of instrumentation materials, and put forward suggestions and solutions for corrosion protection methods.
Strength Analysis of Corroded Seawater Pipeline Based on Finite Element Method
Authors: Wang Xiaoqiang , Cai Guoji , Zhou Yazhuo , Han Ziqiang 
Published: August 2023

Abstract
The residual strength of corroded defective pipelines is an important manifestation of pipeline-bearing capacity. The change of residual strength of Q235 steel and B10 Cu-Ni alloy pipeline caused by the change of defect depth, length, and width in the case of grooved corrosion defect was analyzed and studied by the finite element method. The results show that the effect of corrosion defect depth on the residual strength is greater than the defect length and width. At the same time, Q235 steel has better pressure-bearing performance than B10 Cu-Ni alloy.
Simulation and analysis of hot cylindrical flow forming process of titanium alloy
Authors: Lu Honggang , Guan Ruoyang , Huang Tao , Guo Yaming , Zheng Yuan 
Published: August 2023

Abstract
The spinning process of cylindrical titanium alloy parts was studied using a three-dimensional model and finite element simulation. The forming conditions and stress changes under different spinning process parameters have been analyzed. Based on the numerical simulation test, the blank’s state in the processing process is analyzed and predicted, providing a process reference for the spinning trial.
Molecular dynamics simulation on the shielding effect of aminopropyl trimethoxysilane film on corrosive media
Authors: Wang Xin-jie , Li Yan , Xia Lei , Li Na , Zhang Ao-ran , Zhang Hong-mei , Jiang Zheng-yi 
Published: August 2023

Abstract
Aminopropyl trimethoxysilane (APTMS) was used as a silane reagent, and oxygen and water were set as corrosion media, respectively. The mean square displacement (MSD) of oxygen and water molecules in silanized films with different cross-linking degrees (APTMS-OH-1, APTMS-OH-4, APTMS-OH-8, and APTMS-OH-12) were investigated by molecular dynamics simulation to characterize the corrosion inhibition effect of silanized films in different corrosion media. The results showed that compared with in air, the MSD of oxygen and water molecules in silane film was significantly reduced, which indicated that silane film could prevent the diffusion of corrosive medium, thus protecting material. Silane films with various crosslinking degrees have different shielding effects on oxygen and water molecules. The MSD of oxygen in silane films with different crosslinking degrees was: APTMS-OH-1>APTMS-OH-4>APTMS-OH-12>APTMS-OH-8, while the MSD of water in silane films with different crosslinking degrees was: APTMS-OH-1>APTMS-OH-4≈APTMS-OH-12>APTMS-OH-8. The MSD of both oxygen and water molecules was the lowest in silane films with a crosslinking degree of 8, which showed that silane films had the highest shielding effect.