ChinaRxiv · Open Access in English
Translated papers from the Chinese Preprint site, Chinaxiv
Showing 50 of 1739 papers
Maximizing beam energy deposition requires capturing the entire ion population within a single short-duration bunch to achieve peak power. Using the typical beam 238 U 35+ in the Booster Ring (BRing) at the High Intensity Heavy-Ion Accelerator Facility (HIAF) as an example, we systematically analyze…
For controlled nuclear fusion, it is of significance to develop a comprehensive simulation environment for Inertial Confinement Fusion(ICF) . This environment must accurately calculate the energy loss of charged particles in high-temperature, high-density plasma, and simulate the physical parameters…
The muonium to antimuonium conversion research would be enhanced by an intense pulsed muon source. However, the high intensity muon source induces high pile-up rate in the detector system and reduces the total efficiency. Here we propose a Low Gain Avalanche Detector (LGAD)-based system to search fo…
Originating in the early 20th century, the revolutions of relativity and quantum theory failed to deliver the anticipated ultimate physical theory; instead, physics in the 21st century confronts even greater perplexities and profound crises. The persistent visibility yet elusiveness of grand unified…
Reactor burnup calculations are crucial to the safe operation and fuel management of nuclear power plants. In recent years, the Chebyshev Rational Approximation Method (CRAM) has emerged as one of the primary methods for solving burnup equation systems. When employing CRAM, complex matrix computatio…
We present a new development in the multireference covariant density functional theory (MR-CDFT) for the low-lying states of odd-mass nuclei by mixing the configurations not only with different intrinsic quadrupole shapes, but also with different $K$ quantum numbers. All the configurations are proje…
In the future, advanced reactors will face harsh core environments. Utilizing off-situ detection signals to invert the neutron distribution within the core represents a crucial means for ensuring safe core operation. The latest data-driven off-situ inversion algorithms have not fully considered the …
To calculate the detection efficiency curve and coincidence correction factors for a well-type HPGe detector, the detection efficiency of the HPGe was calibrated using commonly employed single-energy γ radionuclide standard sources, while cascade coincidence correction factors for common radionuclid…
To enhance the safety and reliability of space nuclear power sources, a transient safety analysis code NUSOL-LMR-Li was developed for the lithium-cooled fast reactor Stirling power conversion system, focusing on analyzing its performance and adaptive characteristics under accident conditions. Based …
The 2019 edition of the International Reactor Physics Evaluation Project (IRPhEP) Handbook incorporated the Molten Salt Reactor Experiment (MSRE) benchmark, providing keff (effective multiplication factor) values derived from first criticality experiments and control rod worth calculations for multi…
In high-energy physics~(HEP) experiments, visualization software plays a pivotal role in detector design, offline software development, and event data analysis. The visualization tools integrate detailed detector geometry with complex event data models, providing the researchers with invaluable insi…
Gamma-ray imaging plays a crucial role in source-term monitoring and consequence management of nuclear power plants. These applications typically involve mapping of complex spatial distributions consisting of various radioactive isotopes, and coverage of large areas through free-moving measurements.…
The theory and practices of logging facies have confirmed that the grain sequence in sedimentary sandstones is closely related to the amplitude and morphological characteristics of vertical well logs. However, the corresponding studies of longing responses of horizontal wells in sedimentary sandston…
[Objective] To translate and culturally adapt the Attitude Scale Towards the Use of Artificial Intelligence Technologies in Nursing (ASUAITIN) and examine its reliability and validity, thereby providing an assessment instrument for evaluating clinical nurses' attitudes toward the application of arti…
Based on the tensor-based large margin distribution and the nonparallel support tensor machine, we establish a novel classifier for binary classification problem in this paper, termed the Large Margin Distribution based NonParallel Support Tensor Machine (LDM-NPSTM). The proposed classifier has the …
In China, annual generation of building-related construction and demolition waste (brCDW) exceeds 2 billion tons, with a recycling rate of less than 40%, significantly lower than the European average. The majority of unrecycled brCDW is either landfilled or stockpiled in suburban areas, leading to s…
Grouting serves as an effective method for mitigating geotechnical disasters in subsea tunnels. However, current theories and designs, primarily based on terrestrial tunnel contexts, seldom address the long-term effects of seawater ion erosion on reinforcement. An improved sand permeation grouting s…
Against the backdrop of national new infrastructure development and intelligent construction, intelligent roadbed compaction technology is burgeoning; however, the low correlation and reliability of traditional compaction degree characterization indicators hinder the promotion and application of int…
For roadbed engineering in karst regions and over mined-out areas, improper treatment of underlying voids can readily induce subsidence and other distresses. Grouting reinforcement constitutes one of the common measures for treating karst voids. The typical grouting procedure encompasses drilling, h…
Grouting is a common technical measure to improve the mechanical properties of broken rock mass and ensure the stability of underground excavation. The strength characteristics of reinforced broken rock mass are important parameters in geotechnical engineering design. However, due to the complex str…
For mountainous highway engineering, the local utilization of earth-rock materials for roadbed filling can significantly reduce transportation costs and improve resource utilization efficiency. However, earth-rock mixed fill often faces the following problems in engineering applications: (1) The roc…
Based on Biot's theory, a 2.5-dimensional finite element analysis model for the coupled track–subgrade–multilayer saturated soil foundation system was established, a calculation method for subgrade cumulative settlement considering actual cyclic train loading was proposed, and the influences of wate…
In the Eastern Himalayan Syntaxis region, watershed-scale geological hazards occur frequently, causing significant casualties and infrastructure damage. This study establishes a systematic research methodology from regional scale to individual hazard sites, encompassing the construction of a geologi…
To address the limitations of traditional linear non-stationary random field models in handling the nonlinear variation of soil parameters in fill slopes, this paper proposes a non-stationary random field model employing piecewise linear functions as trend functions. The coefficient calculation meth…
Frame prestressed anchor bolt systems are widely employed in slope engineering, wherein the stability of multi-stage slopes represents a core element of construction safety. Research on the sensitivity of influencing factors and the correlation between stability and displacement for multi-stage slop…
Charge radii are sensitive indicators to identify the nuclear structure phenomena throughout the whole nuclide chart. In particular, the shrunken trend of changes of charge radii along a long isotopic chain is intimately associated with the shell quenching effect. In this work, the systematic evolut…
Biochar and animal manure application can improve crop yields in salt-affected soil. Previous studies have primarily applied biochar and animal manure either alone or at fixed ratios, while their combined effects with varying combination proportions are still unclear. To address this knowledge gap, …
Grassland is a key component of the ecosystem in the Qinghai Lake Basin, China. Understanding the effects of climate change and human activities on grassland productivity significantly improves ecological conservation and promotes sustainable vegetation growth in this area. Based on the net primary …
Understanding plant community assembly is crucial for effective ecosystem conservation and restoration. The ecological filter framework describes community assembly as a process shaped by dispersal, environmental, and biotic filters. Additionally, functional traits and phylogenetic relationships are…
The Loess Plateau (LP), one of the most ecologically fragile regions in China, is affected by severe soil erosion and environmental degradation. Despite large-scale ecological restoration efforts made by Chinese government in recent years, the region continues to face significant ecological challeng…
Coal mining renders soil susceptible to heavy metal (HM) accumulation, adversely affecting the ecological environment and human health, particularly in extremely arid and vulnerable regions. This study collected soil samples from the Heishan open-pit coal mine in Turpan City, Northwest China, to ass…
Understanding the impact of meteorological and topographical factors on snow cover fraction (SCF) is crucial for water resource management in the Qilian Mountains (QLM), China. However, there is still a lack of adequate quantitative analysis of the impact of these factors. This study investigated th…
Precipitation is scarce in semi-arid areas, which results in serious drought. Occurrence of flash drought is quite often in these areas, and flash drought may also cause significant disasters. However, monitoring flash drought is still weak and remains a challenge. This study aims to identify, evalu…
Ischemic stroke, as one of the leading causes of disability and mortality worldwide, has witnessed significant advances in research on prognostic biomarkers in recent years. This study reviews the mechanisms of action and research progress on the utility of various biomarkers, including hematologica…
Cardiovascular disease is one of the major diseases threatening women's health, and postmenopausal women are a high-risk population for cardiovascular disease. The decline in estrogen levels after menopause may promote the accumulation of visceral fat, and increased visceral fat is closely associate…
Background Hemorrhoids are the most common disease in anorectal surgery, with a large patient population. The integrated traditional Chinese and Western medicine approach demonstrates significant advantages in clinical practice. Currently, there is a lack of high-quality guidelines or recommended st…
Post-stroke cognitive impairment (PSCI) is a common sequela in stroke patients, severely affecting their quality of life and often being overlooked. The high incidence, insidious symptoms, and heavy social burden of PSCI have made it a research priority. Understanding the prevalence and related fact…
Background Under the government's high attention to the development of general practice, tertiary general hospitals have successively established general practice departments. The disciplinary characteristics of general practice departments give them significant advantages in the admission and manag…
**Background** Hemorrhoids are one of the common diseases in colorectal and anal surgery, and injection therapy is a commonly used treatment modality. However, nationwide data regarding the depth of application and standardized usage of injection therapy are currently lacking, necessitating this inv…
Background: With the continuous deepening of the family doctor contract service system, how to effectively extend family doctor contract services to functional building populations has emerged as a key focus. Understanding the demand characteristics of this population is a critical approach for deve…
Immune-mediated inflammatory diseases (IMIDs) commonly affect women of childbearing age, and the impact of therapeutic agents on pregnancy outcomes, fetal development, and infants complicates pharmacotherapeutic decision-making during pregnancy and lactation. This article reviews the latest domestic…
The prevalence of obesity-related hypertension has risen markedly worldwide, emerging as a focal point of attention in the current medical community. Obesity increases the difficulty of controlling hypertension, promotes cardiovascular and cerebrovascular injury, and aggravates disease burden. Abnor…
Background: The application of deep learning in medical imaging faces challenges such as time-consuming and labor-intensive data annotation, which restricts the efficiency of its clinical translation. Objective: To investigate the feasibility and efficacy of a deep learning network that integrates t…
In the present study, we systematically calculate the photon absorption cross sections of even-even nuclei in the neodymium (Nd) isotopic chain using the Dirac quasiparticle finite amplitude method (relativistic QFAM) in conjunction with the differential small-amplitude broadening approximation (TSA…
Background In recent years, medical research has identified a certain association between Relative Fat Mass (RFM) and cardiovascular disease (CVD). However, nationwide cohort studies on the relationship between RFM and CVD incidence risk in Chinese populations remain limited. Objective To analyze th…
Stroke represents one of the principal causes of the global burden of disease and mortality, concurrently ranking as the leading cause of death in the Chinese population, and has emerged as a major public health problem threatening public health and social development. Prior research has demonstrate…
背景 Traditional Chinese medicine (TCM) possesses profound theoretical foundations and extensive practical applications in the field of maternal and child health, with the state actively promoting the development of TCM work in this domain. However, issues such as insufficient knowledge of perinatal T…
Named Entity Recognition (NER, NamedEntityRecognition) is a critical component in natural language processing systems, widely applied in tasks such as question answering, information retrieval, and relation extraction. Although NER systems have undergone decades of research and development, named en…
Massive stars are important sites for the weak s-process (ws-process). 22Ne and 16O serve as the primary neutron source and neutron poison for the ws-process, respectively. In metal-poor stars, the abundance of 22Ne is constrained by metallicity, making the 22Ne(α, n)25Mg reaction's contribution to …
