bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on the Jet Milling Process of Oxidizer for Solid Propellant
Authors: Lu Han , Bai Xinlin , Xu Zhigang , Hou Gengshun , Zhang Zhang 
Published: January 2024

Abstract
The particle size of the oxidizer used by the solid rocket propellant has a great impact on the combustion performance of the grain. In order to study the influence law of the oxidizer used for the jet milling, the jet milling process test system is constructed. The influence of the main process parameters on the average particle size was studied by single-factor test.The orthogonal test was designed, and the prediction model of the relationship between particle size and milling pressure, milling chamber material mass and classification wheel speed was established using multiple linear regression method, and the significance analysis and the prediction test were conducted.The results show that the particle size prediction model is significant, and the classification wheel speed affects the average particle size the most, followed by milling pressure and milling chamber material mass.The conclusion is that the deviation of the milling average particle size under the prediction model acquisition process parameters is between 1.79%∼5.88%, and the prediction model acquisition process parameters can be obtained to mill the AP with the average particle size requirements of different specifications.
Thickness-dependent Evolution of the Ferroelectric Domain in Ultrathin BiFeO3 Films below 10 nm
Authors: Sun Xing-Rui , Meng Jian-Wei , Weng Tsu-Chien 
Published: January 2024

Abstract
The scaling behavior of the ferroelectric domain in thick BiFeO3 has been reported to follow Kittel’s law both theoretically and experimentally. The law collapses at a certain thickness, known as the critical thickness. However, little experimental work focused on the ferroelectric domain evolution behavior in ultrathin BiFeO3 films below 10 nm. In this work, the BiFeO3 films with various thicknesses were prepared and observed with piezoresponse force microscopy (PFM) and the periodicity of the domain was extracted by a two-dimensional fast Fourier transform (2D-FFT). The reciprocal space mapping (RSM) analysis is consistent with PFM results demonstrating the 71° domain of the BiFeO3 films. It is confirmed that the critical thickness in BiFeO3 films is below 5 nm and the domain size decreases with decreasing thickness in accordance with Kittel’s law and a scaling exponent of 0.41 down to that thickness.
Transient liquid phase bonding of Sn-Pb solder with added Cu particles
Authors: Wang Jiaxing , Lin Pengrong , Yao Quanbin , Huang Yinzhuo , Xie Xiaochen , Li Zongyang , Zhang Long 
Published: January 2024

Abstract
In this paper, the 1%-20% Cu particles were uniformly distributed in SnPb solder by mechanical mixing method to prepare composite solder. The solder was welded by eutectic welding and the high temperature failure test was carried out. The melting point and internal structure of solder were observed before reflow, after welding and after aging, and the existence of high-temperature resistant skeleton was found. It could be seen from the DSC curve that the solder absorption peak changes in a step-like manner, and the proportion of the high melting point absorption peak gradually increases with the aging process. The micro-structure of solder joints showed that a thin layer of IMC was formed around the Cu particles in the solder joints after welding, and the IMC in the solder joints had grown continuously until they contacted each other and formed a skeleton structure with aging. The skeleton structure improved the high temperature resistance of the solder joint. EDS analysis showed that the distribution of Cu element in the solder was similar to that of Sn, and the Pb element was enriched. The distribution of metal elements indicates that the solder joint was mainly composed of Cu6Sn5 IMC skeleton and Pb rich phase, and the solder component phase was high melting point component transformation.
Recycling Glass Fiber from Polyurethane Composite by Pyrolysis Strategy with High Mechanical Properties
Authors: Ma Yantao , Du Zhengyu , Fang Xiaojian , Chen Bingbing , Shi Lu , Li Hua 
Published: January 2024

Abstract
With the rapid advancement of the wind power industry, the recycling of retired wind turbine blades and the regeneration of glass fibers have become urgent environmental and economic issues. In this article, a two-step pyrolysis strategy was put forward, in which the relationship between the pyrolysis parameters and the properties of the recycled glass fibers, including the surface morphology, defects, and mechanical properties were demonstrated. We found that pyrolyzing the composites at 500°C under high-temperature water vapor atmosphere to recover the glass fibers, and oxidizing at 450°C to remove the residual carbon of fibers is the optimal choice. In this way, not only can the fibers be recovered from the waste composites, but also the mechanical properties of the fibers can be retained while removing the residual carbon on the surface, which provides a guarantee for subsequent high-value reuse of waste fan blade composite materials.
Effect of specimen thickness on fatigue crack shape evolution for aluminum alloy
Authors: Wu LiMing , He Yuting , Zhang Teng 
Published: January 2024

Abstract
The investigation of fatigue crack propagation and fracture mechanisms in high-thickness metal plates holds pivotal importance in the advancement of a three-dimensional damage tolerance assessment methodology. This research also bears significant implications for ensuring the safe operation of large-scale mechanical equipment. In this study, we examine the influence of specimen thickness on the evolution of fatigue crack shapes in an aluminum alloy. Fatigue crack growth tests were conducted on single-edge notch tension specimens to explore the impact of specimen thickness on the shape of fatigue crack growth. Additionally, we propose a calculation model for crack growth shape based on an energy model in this paper. Both experimental and analytical findings indicate that specimen thickness does indeed exert an influence on fatigue crack shape. Specifically, as the specimen thickness increases, the crack shape transitions from resembling a “fingernail” to a “saddle” shape.
Wetting and interfacial phenomena between a Ni-based superalloy and silica-based ceramic cores with ZrSiO4 additions
Authors: Chen Xiaoyan , Li Zhihui , Zhao Yanjie , Qi Chengkang , Li Shurong , Li Fei 
Published: January 2024

Abstract
Wetting behavior and interfacial reactions between a Ni-based superalloy and silica-based ceramic cores containing 10 wt.%, 30 wt.% and 50 wt.% ZrSiO4 were studied using a sessile drop method. The reaction products were characterized by SEM/EDS, EPMA and XPS analysis. SiO2 was the main component in the ceramic cores taking part in the interfacial reactions and the reaction products were composed mainly of Al2O3 layer with some ZrOx scattered. A Cr2O3 halo formed outside the wetted ceramic surface. The wetting angle increased in the initial stage to a peak value and then decreased to a constant value. The increase of the wetting angle may be attributed to the gas evaporation at the interface and the decrease of the wetting angle was due to the formation of the reaction layer at the interface.
SBC-SNOLAB scintillation system and SiPM implementation for dark matter searches
Authors: Hawley-Herrera H. ,   the SBC collaboration
Published: January 2024

Abstract
The Scintillating Bubble Chamber (SBC) collaboration is constructing a 10 kg liquid argon (LAr) bubble chamber at SNOLAB called SBC-SNOLAB having the main objective of detecting dark matter. One of the most novel aspects of SBC-SNOLAB is the scintillation system, consisting of LAr doped with on the order of 10 ppm Xe, 48 FBK VUV silicon photomultipliers (SiPMs), the SiPM electronics, two quartz jars, and liquid CF4 used as an hydraulic fluid and additional source of scintillation photons. In contrast with traditional single or dual phase scintillation experiments, the collected LAr scitillation light is used to veto signals which involve the detection of at least a single photoelectron. These proceedings will describe in detail the current SBC-SNOLAB scintillation system which includes the unique design considerations for SBC-SNOLAB that limit the light collection efficiency and the electronics.
Spectroscopic effects of distributed-line phenomena in integrated feedback resistors for charge-sensitive pre-amplifiers
Authors: Capra S. , Secci G. , Pullia A. 
Published: January 2024

Abstract
The distributed capacitive coupling of high-valued resistors with ground planes modifies their effective impedance and power spectral density of noise, especially at high frequency. This effect is clearly visible in poly-silicon resistors inside integrated circuits. When such resistors are used in the feedback network of Charge Sensitive Pre-amplifiers an excess noise arises with a non-white noise spectral density. The effect is a worsening of the spectroscopic resolution. The relevance of such effect with respect to the conventional noise sources is discussed in different practical cases.
Implementation of the frozen-spin technique for the search for a muon electric dipole moment
Authors: Hume Timothy , Chakraborty Ritwika , Doinaki Anastasia , Dutsov Chavdar , Giovannozzi Massimo , Michielsen Katia , Morvaj Ljiljana , Papa Angela , Schmidt-Wellenburg Philipp , Stäger David ,   the muEDM collaboration
Published: January 2024

Abstract
Applying the frozen-spin technique in a compact
3 T solenoid will enable a search for the muon electric
dipole moment (EDM) with unprecedented sensitivity, improving upon
the current direct limit by approximately a factor of 1000. After
injection of a selected muon, a pulsed magnetic field will reduce
its longitudinal momentum sufficiently to be confined within a
static weakly-focusing magnetic field and maintain a closed circular
orbit. A precisely tuned radial electric field will cancel the spin
precession induced by the muon's anomalous magnetic moment, a = (g - 2)/2, relative to the orientation of the momentum. In this
configuration, the EDM becomes the only remaining inherent source of
relative precession. Asymmetry in the direction and energy of
positrons emitted from muon decay provides an experimental signature
of such precession.
In the first of two phases, 28 MeV/c muons from the πE1 beamline at PSI will be used to demonstrate the systems
necessary for injecting and trapping muons, tuning fields to the
frozen-spin condition and reconstructing positron trajectories.
Designs for the coils producing the pulsed magnetic field and the
electrodes applying the frozen-spin electric field are currently
being evaluated with simulations and prototypes. These systems must
be designed in parallel, especially due to the impact of
eddy-currents induced in the electrodes by the pulsed magnetic
field. The electrode design must minimise eddy-currents to preserve
the field strength of the pulsed field responsible for muon
trapping, while maintaining the electric field uniformity necessary
to achieve the sensitivity goal. This article summarises some of
the efforts underway to address these design challenges.
Cryogenic characterization of Hamamatsu HWB MPPCs for the DUNE photon detection system
Authors: Andreotti M. , Bertolucci S. , Branca A. , Brizzolari C. , Brunetti G. , Calabrese R. , Carniti P. , Casazza D. , Cattadori C. , Calvo E. , Cervera A. , Chiozzi S. , Cicero V. , Cotta Ramusino A. , Cristaldo Morales E. , Cuesta C. , D'Amico R. , De la Torre A. , Delgado Gonzalez M. , Di Capua F. , Di Ferdinando D. , Dyshkant A. , Eads M. , Falcone A. , Fialova E. , Filip P. , Fiorillo G. , Fiorini M. , Francis K. , Galizzi F. , Gallice N. , Garcia-Gamez D. , García-Peris M.Á. , Giammaria T. , Gil-Botella I. , Giugliano C. , Gotti C. , Guarise M. , Guffanti D. , Kovalcuk M. , Lax I. , Lazzaroni M. , Lokajicek M. , Luppi E. , Manthey S. , Martin-Albo J. , Mauri N. , Meazza L. , Minotti A. , Moggi N. , Montagna E. , Montanari A. , Neri I. , Nicolas-Arnaldos F.J. , Palomares C. , Pasqualini L. , Patrizii L. , Pérez-Molina L. , Pessina G. , Pia V. , Poppi F. , Pozzato M. , Querol M. , Rocabado J. , Saadana A. , Sala P. , Sanchez-Castillo A. , Sanchez-Lucas P. , Schifano F.S. , Sirri G. , Smolik J. , Spanu M. , Terranova F. , Tenti M. , Tomassetti L. , Torti M. , Tosi N. , Verdugo de Osa A. , Vieira de Souza H. , Zalesak J. , Zamorano B. , Zani A. , Zucchelli S. , Zuklin J. , Zutshi V. 
Published: January 2024

Abstract
The Deep Underground Neutrino Experiment (DUNE) is a next
generation experiment aimed to study neutrino oscillation. Its
long-baseline configuration will exploit a Near Detector (ND) and a
Far Detector (FD) located at a distance of ∼1300 km. The FD
will consist of four Liquid Argon Time Projection Chamber (LAr TPC)
modules. A Photon Detection System (PDS) will be used to detect the
scintillation light produced inside the detector after neutrino
interactions. The PDS will be based on light collectors coupled to
Silicon Photomultipliers (SiPMs). Different photosensor
technologies have been proposed and produced in order to identify
the best samples to fullfill the experiment requirements. In this
paper, we present the procedure and results of a validation campaign
for the Hole Wire Bonding (HWB) MPPCs samples produced by Hamamatsu
Photonics K.K. (HPK) for the DUNE experiment, referring to them as
`SiPMs'. The protocol for a characterization at cryogenic
temperature (77 K) is reported. We present the down-selection
criteria and the results obtained during the selection campaign
undertaken, along with a study of the main sources of noise of the
SiPMs including the investigation of a newly observed phenomenon in
this field.
Enterogenous extra-oral halitosis has a more severe impact on quality of life in females compared to males
Authors: Qian Xiao Xian 
Published: January 2024

Abstract
Some studies have examined the impact of intra-oral halitosis on quality of life (QOL), but the impact of enterogenous extra-oral halitosis (EOH) on QOL has not been previously studied. We conducted a retrospective analysis of data from 88 patients with enterogenous EOH who visited our online halitosis clinic. A specialized halitosis associated life-quality test (HALT) questionnaire was used to assess QOL of these patients. Spearman correlation analysis was performed to investigate the relationship between HALT score and age. We found that 21 (23.86%) patients were male and 67 (76.14%) patients were female. HALT scores in females were significantly higher than in males (57.6 ± 13.6 vs. 45.5 ± 11.9, P < 0.001). Additionally, 13 of the 20 items of the HALT questionnaire showed significant differences between the sexes. No correlation was identified between HALT score and age. Therefore, we conclude that: (1) enterogenous EOH has a more severe impact on QOL in females compared to males. (2) More females with EOH visit the offline halitosis clinic compared to males. (3) The QOL of patients with enterogenous EOH does not decline with age.
Hydrogeochemical characteristic and water quality index of groundwater and streamwater at Nam Mu River basin, Lai Chau province in northwest Vietnam
Authors: Do Thu Thi , Dung Pham Thi , Tran Tuan Anh , Le Luong Duc , Vu Hai Dinh , Doan Tra Thi Thu , Le Dao Quang , Tran Hien Trong , Pham Dat Ngoc , Nguyen Lien Thi , Le Dung Thi Phuong 
Published: January 2024

Abstract
Assessing the quality of groundwater and upstream water in regions experiencing water scarcity during the dry season, such as the mountainous districts of Northern Vietnam, holds immense significance in the management, utilization, and preservation of natural water resources. In this study, we collected and analyzed 54 samples of groundwater and upstream streamwater within the Nam Mu river basin in Lai Chau province during the dry season. These samples underwent thorough analysis for physicochemical parameters, major ion concentrations, and trace elements. Some results revealed a close relationship between streamwater and groundwater, indicating a similar chemical composition. These waters could be classified based on geological formations, yielding two primary water types in the area. The first type, characterized by Ca2+ - Mg2+ - HCO3
− is prevalent in Triassic terrigenous sediments. The second type is a mixed water type, ranging from Ca2+ - Mg2+ - Cl− to Ca2+ - Na+ - HCO3
−, primarily distributed in Permian felsic volcanic formations. These distinct water types are primarily the result of interactions between water and rock, precipitation processes, and ion exchange phenomena. Geochemical simulation results demonstrated the supersaturation of aragonite, calcite, and dolomite minerals, leading to the precipitation of carbonate minerals. Concurrently, the simulation indicated a tendency to dissolve minerals such as fluorite, gypsum, halite, and sylvite. The assessment of water quality using the WQI indicates that, in accordance with QCVN 01-1:2018/BYT 2018 standards, the majority of groundwater and streamwater are suitable for domestic use. However, exceptions exist in certain sample locations where water quality exceeds permissible standards, primarily due to elevated levels of Fe, Mn, and NO3
− concentration. Hence, it is important to implement water treatment processes for the water sourced from these specific locations before their utilization in daily activities to ensure the safety and well-being of the local population.
TrashInst: real-time floating litter instance segmentation model
Authors: Bessaad Nassim , Qilian Bao , Jiankang Zhao , Benoudina Nardjess 
Published: January 2024

Abstract
This paper introduces TrashInst, an innovative fully convolutional single-stage anchor-free real-time instance segmentation model designed specifically for the detection of floating litter in waterways. TrashInst features a streamlined Encoder-Decoder architecture and an efficient channel attention mask head, ensuring the preservation of critical feature maps while minimizing redundant computations. Even in scenarios with limited feature maps, our approach, complemented by sparse instance activation maps, excels in both detection and segmentation tasks. Our encoder effectively processes features derived from ResNet50 across multiple scales, generating comprehensive abstractions through the nested feature module. Subsequently, the Vortex Instance Activation Maps module (VIAM) aggregates these multi-scale nested features and integrates them with mask head outputs, yielding precise instance masks. Furthermore, we employ the focal Tversky objective function to balance the dataset. In terms of performance, our approach outperforms state-of-the-art real-time instance segmentation models, achieving a remarkable 34% accuracy improvement, all while maintaining swift execution at 44 frames per second (FPS) on a single NVIDIA GTX-3090 GPU. Rigorous validation underscores the delicate interplay between speed and precision, highlighting the model’s exceptional ability to handle objects of varying sizes in real-time settings. Significantly, TrashInst attains superior average precision (AP) results in detecting large to medium-sized objects, outperforming existing models by a notable 4∼22% in the large category and an impressive 1.1∼56% in the medium category within our dataset. For the benefit of the community data will be available at (https://github.com/nassim12/TrashInst).
Carotid Intima–Media Thickness and Improved Stroke Risk Assessment in Hypertensive Black Adults
Authors: Abe Temidayo A , Olanipekun Titilope , Yan Fengxia , Effoe Valery , Udongwo Ndausung , Oshunbade Adebamike , Thomas Victoria , Onuorah Ifeoma , Terry James G , Yimer Wondwosen K , Ghali Jalal K , Correa Adolfo , Onwuanyi Anekwe , Michos Erin D , Benjamin Emelia J , Echols Melvin 
Published: January 2024

Abstract

BACKGROUND
We aim to determine the added value of carotid intima–media thickness (cIMT) in stroke risk assessment for hypertensive Black adults.

METHODS
We examined 1,647 participants with hypertension without a history of cardiovascular (CV) disease, from the Jackson Heart Study. Cox regression analysis estimated hazard ratios (HRs) for incident stroke per standard deviation increase in cIMT and quartiles while adjusting for baseline variables. We then evaluated the predictive capacity of cIMT when added to the pool cohort equations (PCEs).

RESULTS
The mean age at baseline was 57 ± 10 years. Each standard deviation increase in cIMT (0.17 mm) was associated with approximately 30% higher risk of stroke (HR 1.27, 95% confidence interval: 1.08–1.49). Notably, cIMT proved valuable in identifying residual stroke risk among participants with well-controlled blood pressure, showing up to a 56% increase in the odds of stroke for each 0.17 mm increase in cIMT among those with systolic blood pressure &lt;120 mm Hg. Additionally, the addition of cIMT to the PCE resulted in the reclassification of 58% of low to borderline risk participants with stroke to a higher-risk category and 28% without stroke to a lower-risk category, leading to a significant net reclassification improvement of 0.22 (0.10–0.30).

CONCLUSIONS
In this community-based cohort of middle-aged Black adults with hypertension and no history of CV disease at baseline, cIMT is significantly associated with incident stroke and enhances stroke risk stratification.
Social Determinants of Health and Perceived Cognitive Difficulties in High School Students in the United States
Authors: Iverson Ila A , Gaudet Charles E , Cook Nathan E , Iverson Grant L 
Published: January 2024

Abstract

Objective
The United States Centers for Disease Control and Prevention (CDC) conducted the Adolescent Behavior and Experiences Survey (ABES) to examine disruption and adversity during the COVID-19 pandemic. We examined the association between social determinants of health (SDoH) and cognitive problems attributed to physical or mental health problems among high school students.

Method
The ABES was an online survey. Perceived cognitive problems were assessed with the question: “Because of a physical, mental, or emotional problem, do you have serious difficulty concentrating, remembering, or making decisions?” A SDoH index was created by summing endorsements to 12 variables.

Results
Participants were 6,992 students, age 14–18, with 3,294 boys (47%) and 3,698 girls (53%). Many adolescents reported experiencing cognitive problems (i.e., 45%), with girls (56%) more likely to report cognitive difficulties than boys (33%) [χ2(1) = 392.55, p &lt; 0.001]. Having poor mental health was strongly associated with cognitive problems in both girls [81%, χ2(1, 3680) = 650.20, p &lt; 0.001] and boys [67%, χ2(1, 3267) = 418.69, p &lt; 0.001]. There was a positive, linear association between the number of SDoH experienced and reporting cognitive problems. Binary logistic regressions were used to identify predictors of cognitive difficulty for both boys and girls (e.g., being bullied electronically, experiencing food insecurity during the pandemic, being treated unfairly because of their race or ethnicity, and being in a physical fight).

Conclusions
A strikingly high proportion of adolescents reported experiencing problems with their cognitive functioning. After adjusting for current mental health problems, several SDoH remained associated with adolescents’ reported cognitive difficulties, including experiencing racism, bullying, parental job loss, and food insecurity.