Automatically translated preprints from the Chinese arXiv (ChinaXiv).
Showing 50 of 1495 papers
The Jiangmen Underground Neutrino Observatory (JUNO), a 20~ktons low-background Liquid Scintillator detector (LS), was primarily designed to determine the neutrino mass ordering. JUNO requires UltraPure Water (UPW) with a $^{226}$Ra concentration $<$50~$\mu$Bq/m$^3$ due to the direct liquid-liquid c…
Similarity represents a crucial component of marital satisfaction in couples; however, existing research on their relationship has produced contradictory findings. In what specific dimensions are couples actually similar, and how does similarity influence marital satisfaction? This study examined 63…
We report an intriguing Poynting vortex street produced by 3D vectorial superposition of two counterpropagating modes in different mode orders on silicon-based waveguides. Importantly, this Poynting vortex street can produce composite topological textures characterized by spin skyrmion (bimeron) arr…
This study examines whether LLMs can simulate culturally grounded psychological patterns based on demographic information. Using DeepSeek, we generated 2943 virtual participants matched to demographic distributions from the CFPS2018 and compared them with human responses on the Big Five personality …
The neutron-rich nucleus 22C, located at the neutron dripline, exhibits intriguing structural properties, such as its Borromean nature and potential two-neutron halo configuration. Despite experimental advancements, uncertainties persist in the energy of two-neutron separation S2n and the radius of …
Transmission neutron spectra from a pure 238U slab sample (dimensions: 100 mm × 100 mm × 20 mm) bombarded by broad-spectrum neutrons were measured at 0° using the time-of-flight method. The experiment was carried out at the Radioactive Ion Beam Line of the Heavy Ion Research Facility in Lanzhou at t…
Background: Globally, children still face challenges of early developmental delays. The characteristics and differences of early childhood development (ECD) in economically developed regions remain unclear. Conducting ECD-related analyses based on existing child health management system databases ca…
Background Primary Sjögren's disease (pSjD) is a chronic autoimmune disease characterized by lymphocytic infiltration of exocrine glands, mainly manifesting as dry mouth and dry eyes, and can involve multiple systems. Epidemiological surveys show its prevalence is approximately 0.06%~0.08%, and is i…
Background Recurrent urinary tract infection (rUTI) is a common condition in female patients, severely impacting quality of life, increasing healthcare burden, and being associated with global antibiotic resistance. Currently, European and American countries have established dedicated diagnosis and …
Background: The number of clinics in Beijing has increased rapidly; however, clinics face severe challenges, including physician shortages, low service quality, and weak regulatory oversight. Objective: To investigate the operational efficiency of Beijing's clinics and its changing trends, thereby p…
[Purpose] The low-altitude economy constitutes a strategic frontier leading the new round of global industrial transformation. This study aims to deeply decode the strategic intent, internal structure, and functional effectiveness of U.S. low-altitude economy policies, providing intelligence support…
Cosmogenic muon-induced radioactive isotopes pose a significant background source for deep-underground low-background experiments. Although rock overburdens at underground sites substantially attenuate the cosmogenic muon flux, residual muon-induced backgrounds still require active suppression. For …
It is widely accepted that neutrino oscillation implies a non-zero mass for neutrinos. However, to date, no other conclusive experimental evidence has definitively confirmed their mass. If neutrino oscillations originate from the intrinsic properties of neutrinos themselves, then postulating that ne…
When the operating temperature of a Solid Oxide Electrolysis Cell (SOEC) is lower than the outlet temperature of a nuclear reactor, the reactor can be directly coupled with the SOEC as a high-temperature heat source. However, the key to the efficiency and return on investment of this hybrid energy s…
Abstract Purpose/Significance: Exploring the "One Body, Two Wings, Three Collaborations" venue-based education model facilitates deep integration of venues and resources, two-way linkage between management and services, and collaborative innovation among multiple stakeholders, which is of great sign…
Three-quasiparticle K-isomeric states in odd-mass N=106 isotones within the A~180 mass region are systematically investigated using configuration-constrained potential energy surface calculations. The calculations successfully reproduce the excitation energies and deformations of known high-K isomer…
On-chip particle accelerators, especially dielectric laser accelerators utilizing the inverse Cherenkov effect (ICR-DLAs), show great potential for next-generation compact applications. However, single-sided laser-driven ICR-DLAs suffer from two key drawbacks: (1) The achievable acceleration gradien…
Very Large Area gamma-ray Space Telescope (VLAST) is the next-generation flagship space observatory for high-energy gamma-ray detection proposed by China. The observation energy range covers from MeV to TeV and beyond, with acceptance of 10 m^2sr. The calorimeter serves as a crucial subdetector of V…
To assess the steam generator tube rupture (SGTR) accident scenario under compromised safety systems (e.g., post-earthquake conditions), as specified in the OECD/NEA/CSNI International Standard Problem (ISP) No. 52 project, a full-scale facility model was developed using the RELAP5 thermal-hydraulic…
The irradiation response of pure and nitrogen-doped 6H-SiC single crystal was investigated after low-fluence neutron irradiation at 30~60°C. Internal Friction, X-Ray Diffraction, Raman spectroscopy and Transmission Electron Microscopy were used to study the microstructural changes. Neutron irradiati…
The uniform distribution of U3O8 particles within an aluminum matrix is crucial for the optimal performance and safety of plate-type nuclear fuel produced by the dispersion technique. X-ray radiography is one of the methods employed to inspect the homogeneity of U3O8-Al dispersion fuel plates. This …
This study constructs a hybrid module with a multi-material collaborative detection architecture by integrating silicon pixel layers into the longitudinally segmented scintillating fiber sampling calorimeter module and optimizes the placement of the silicon layers. The module utilizes the pre-shower…
The mechanism and the observables (including cross section, angular distribution, energy spectrum and double-differential cross section) for the p+$^{28}$Si reaction below incident energy 200 MeV are systematically studied. A set of optimal global optical potential parameters for proton is obtained …
Consciousness is considered the most challenging problem in the science of the mind, especially Chalmers' hard problem. From the standpoint of systems science philosophy, many consciousness theories overlook the structure-function correlation principle, thereby reducing their explanatory power regar…
Massive stars are significant sites for the weak s-process (ws-process). 22Ne and 16O are, respectively, the main neutron source and poison for the ws-process. In the metal-poor stars, the abundance of 22Ne is limited by the metallicity, so that the contribution of 22Ne(α, n)25Mg reaction on the s-p…
This study employs the Shouchang Wastewater Treatment Plant in Jiande City, Hangzhou as an empirical case to investigate the energy conservation and carbon reduction effects of county-level environmental protection projects. The paper commences with theoretical and methodological frameworks, introdu…
Production of pulsed neutron sources from petawatt-class femtosecond laser interacting with pitcher-catcher target is studied by comprehensively using radiation hydrodynamic, particle-in-cell and monte-carlo simulations. We find that the preplasma from the ablation of laser prepulse is beneficial fo…
This study explores the performance of Ice Bed Condensers (IBC) in controlling hydrogenrelated hazards during severe accident progression in PWR reactor under a prolonged Station Blackout (SBO) scenario. Simulations using MELCOR 1.8.6 reveal that during the in-vessel phase, zircaloy oxidation begins…
Aerial survey is a dynamic and continuous process, and variations in ground elevation within the survey area lead to issues such as overlapping measurement zones and inaccurate altitude correction during the survey process. Commonly used terrain correction methods are based on the concept of finite …
Monte Carlo simulations with the CRISP code were conducted to study spallation and fission fragment distributions induced by intermediate- and high-energy protons and photons on actinide and pre-actinide nuclei. The model accounts for intranuclear cascade, pre-equilibrium, and evaporation-fission co…
The concept of collective effervescence originates from Durkheim's social theory and denotes an intense shared emotional experience triggered by collective gatherings. Contemporary psychological research posits that collective effervescence constitutes not merely an intense shared emotional experien…
Establishing a comprehensive risk management system and sound, effective internal control mechanisms constitutes a critical prerequisite for enterprise survival and healthy development. The article elaborates that digital transformation of auditing facilitates the achievement of internal audit objec…
Multimodal Large Language Models (MLLMs) can process and integrate multimodal data information such as images and text, providing a powerful tool for understanding human psychology and cognitive behavior. Combining classic paradigms from emotion psychology, this study separates the different roles o…
To address issues such as radiation exposure risks and limited experimental flexibility inherent in traditional nuclear experiments relying on radioactive sources, this study proposes a high-safety analog nuclear signal generator based on an FPGA (Field Programmable Gate Array) and DAC (digital-to-a…
The Southern Advanced Photon Source (SAPS) is a diffraction-limited synchrotron light source under design, which employs longitudinal injection as its primary injection scheme. This kind of injection scheme requires that the injected beam has a short bunch length and low emittance, and the preferred…
Suicide exposure refers to an individual's contact with the suicidal behavior of others, which can have severe negative impacts on vulnerable populations such as suicide bereaved individuals, patients with mental disorders, those at risk of suicide, adolescents, and young adults. Although previous r…
Attribute levels (dichotomous attributes and polytomous attributes) and item ideal scoring methods (0-1 scoring and polytomous scoring) constitute two important dimensions in cognitive diagnostic test design. Polytomous attribute tests can provide more detailed diagnostic information, while polytomo…
As artificial intelligence (AI) assumes an increasingly prominent role in major decision-making, the ethical issues it raises have garnered significant attention. This study systematically reveals the dual-path mechanism underlying the artificial intelligence moral deficiency effect and correspondin…
Addressing the pain points of "theory divorced from practice," "fragmented scenarios," and "insufficient innovation capability" in traditional control engineering education, this study constructs a case-based teaching reform framework featuring "three-dimensional integration" (multi-dimensional case…
Objective To verify the testing consistency between the domestic abnormal prothrombin diagnostic reagent and the original research product. Methods A prospective clinical trial was conducted at three hospitals. From November 15, 2021 to April 24, 2024, a total of 1,329 blood samples were collected f…
Establishing a comprehensive risk management system and sound, effective internal control mechanisms constitutes a critical prerequisite for the survival and healthy development of financial enterprises. This paper analyzes the lessons from the 2008 Société Générale incident, in which severe deficie…
The mirror energy difference (MED) of the mirror state, especially for states bearing the Thomas-Ehrman shift, serves as a sensitive probe of isospin symmetry breaking. We employ the Gamow shell model, which includes the inter-nucleon correlation and continuum coupling, to investigate the MED for $s…
Background: Previous research has observed larger word length effects in Chinese reading, speculating that older adults may adopt a character-based processing strategy for recognizing long words. However, to our knowledge, there was no direct evidence to support this viewpoint. Methods: By co-regist…
This study aims to investigate the responses of a perovskite-based direct-conversion dual-layer flat-panel detector (DL-FPD) numerically. To this end, the X-ray sensitivity, spatial resolution quantified by the modulation transfer function (MTF), and detective quantum efficiency (DQE) of the DL-FPD …
In high-level radioactive waste geological disposal, bentonite is commonly employed as a buffer/backfill material. The existence form of its colloids in the deep geological repository environment may influence the sorption, diffusion, and migration behaviors of key radionuclides. Focusing on single-…
As consumer attention to diversity and equity continues to rise, anti-stereotype has gradually become an important practice in the marketing domain, particularly in advertising communication. However, existing research lacks systematic integration of the dynamic mechanisms of anti-stereotype and its…
This work presents a detailed, benchmarked evaluation of the reactivity worth of top beryllium shim plates in the Nigerian Research Reactor-1 (NIRR-1) following conversion from highenriched uranium (HEU) to low-enriched uranium (LEU) fuel. Multigroup cross sections were generated with WIMS-ANL and c…
This study establishes a fully coupled thermo-hydro-mechanical (THM) finite element model based on non-equilibrium thermodynamics theory. The model innovatively introduces bound water temperature and particle temperature parameters to characterize microscopic thermal effects, thereby systematically …
Energy piles serve both load-bearing and heat exchange functions, holding significant value in ground-source heat pump applications. However, under layered foundation conditions, the heat transfer mechanism of pile-soil heat exchange is rather complex. Existing analysis methods are mostly based on c…
Bound water in saturated clay, owing to its unique electrical double-layer structure, plays a pivotal role in governing the macroscopic thermo-mechanical behavior of clay. This paper centers on discussing the mechanism of bound water variation with temperature in saturated clay. Through comparative …
