ChinaRxiv · Open Access in English
Translated papers from the Chinese Preprint site, Chinaxiv
Showing 50 of 1739 papers
As a major technical challenge in tunnel construction, thermal hazards induced by geothermal anomalies encompass disaster-causing elements including hot water and gas sources, transport pathways, dynamic mechanisms, and engineering indicators, featuring strong concealment, high suddenness, and compl…
Landslide hazards rank among the natural disasters with the highest frequency, widest distribution, and most severe losses globally, posing a grave threat to human life and property safety as well as major engineering facilities. Scientific monitoring serves as a critical technical prerequisite for …
Heat hazards in deep-buried tunnels have emerged as a significant challenge constraining their safe construction. This paper addresses the limitation of current tunnel heat hazard research, which primarily focuses on managing high rock temperature and high ambient temperature during the construction…
The Dongjiekou Station of the Fuzhou Urban Rail Transit Line 4 Phase I Project is located in the city center area, constituting a three-level underground station featuring a cross interchange with Line 1. The surrounding environment is complex, with certain foundation pit retaining structures positi…
The Longmenshan strong earthquake zone widely features "V"-shaped erosion-denudation alpine gorge landforms. The Longmenshan fault zone within the region has continuously maintained strong tectonic activity since the Quaternary, resulting in frequent collapse and landslide disasters that seriously t…
With the continuous advancement of trenchless technology, the application scope of rectangular pipe jacking construction has been continuously expanding. This paper takes the super-large cross-section rectangular pipe jacking construction with a middle partition wall for Fuzhou Metro Line 4 as an ex…
Water impoundment of large reservoirs exerts a significant triggering effect on reservoir bank landslides. Research on early identification and deformation evolution of reservoir bank landslides can provide important support for geological disaster prevention and control in reservoir areas. The Lian…
Against the backdrop of integrated development of urban rail transit and various types of railways in China, the application of single-tube double-track shield tunnels is increasing. Compared with traditional double-tube double-track tunnels, they have larger diameters and more complex internal stru…
In recent years, with the undergrounding and intensification of municipal utility facilities, pipe jacking construction has been increasingly widely applied. This paper takes the Shenzhen Metro Line 16 co-constructed utility tunnel project as an example to elaborate on pipe jacking machine construct…
The Shanghai Metropolitan Railway Airport Link Line Project marks the first implementation of fully prefabricated assembly technology for circular tunnel interior structures in the domain of large-diameter shield tunnels within China. The tunnel features an outer diameter of 13.6 m and an inner diam…
As shield tunneling technology extends toward super-large diameters and complex geological conditions, the safety control of shield tunneling through existing building pile foundation groups has become a critical engineering challenge. This paper takes the Guangzhou Haizhuwan Tunnel Project as the r…
The construction of inclined shafts in extra-long highway tunnels constitutes an important auxiliary construction measure that increases working faces, facilitates mucking and material transportation, improves ventilation, and enhances construction efficiency, thereby holding significant importance …
Soil conditioning is one of the important methods to ensure tunnel face stability and excavation efficiency in Earth Pressure Balance (EPB) shield tunneling. Commonly used soil conditioning agents currently include water, foam, bentonite slurry, polymers, and other materials. At present, there is a …
Advancing into the deep Earth represents a strategic scientific and technological challenge that must be addressed, and the development of deep underground resources and space has emerged as a crucial direction for China's future scientific and technological advancement. As a significant clean energ…
Taking the EPB shield tunneling of Guangzhou Metro Line 18 through full-face sand layers at large burial depth as the engineering background, this paper summarizes the key technologies for soil conditioning during construction and draws the following conclusions: 1) When shield tunneling through wat…
During subway construction, mitigating the impact of construction on the surrounding environment and protecting adjacent buildings and utilities has always been a critical focus of construction control. This paper presents a case study of a station on Shanghai Metro Line 15, where the adjacent hotel…
As one of the precursor characteristics of slope deformation, surface cracks can provide predictive information for early identification of geological hazards and determination of kinematic instability characteristics. Constrained by terrain conditions, manual inspection suffers from low efficiency,…
Identification and calculation of debris flow sources constitute the foundation for scientifically assessing the scale, hazard level, and comprehensive management of debris flows. However, traditional ground surveys and optical remote sensing methods struggle to effectively identify debris flow sour…
The muck and mucky soil in Nansha District exhibit characteristics including higher water content, large void ratio, low natural density, high compressibility, and low strength. Compared with marine soft soils in other domestic regions, they exert a more pronounced influence on engineering construct…
Geological hazard identification serves as the foundation for disaster susceptibility assessment, monitoring, and early warning. Conventional manual ground surveys and satellite remote sensing encounter substantial difficulties in identifying geological hazards in high-vegetation-covered mountainous…
Addressing the technical challenge of high-precision attitude control during the launch phase of small-radius shield tunnels, this paper, based on a specific case study, innovatively integrates quantitative analysis and mechanical mechanisms to systematically summarize seven deviation correction str…
Understanding the history and current status of geological hazards through advance geological surveys is of great significance for ultimately achieving identification and early warning of potential disasters. Currently, traditional manual ground survey methods struggle to detect and investigate majo…
This project is based on a subway project in Shenzhen, which is constructed along the coast and primarily traverses sand layers, silty soil, completely weathered granite, upper-soft lower-hard strata, and rock-fill layers, with conditions including lateral crossing of bridge piles, high water pressu…
Self-Powered Neutron Detector (SPND), as an important detection component for in-core neutron fluence rate measurement, exhibits generally small signal currents and delayed response due to its special response mechanism. Currently, research on SPND sensitivity also lacks in-reactor experimental data…
Black Hole X-Ray Binary (BHXRB) is a binary system composed of a central compact black hole and its companion star. During its outburst phase, it is always accompanied by multi-wavelength radiation. With the development of multi-wavelength astronomy, a general picture of the physical processes behin…
Insight-HXMT (Insight-Hard X-ray Modulation Telescope) is China's first space X-ray astronomical satellite, whose primary scientific objectives are to study compact objects such as black holes and neutron stars and to monitor violent explosive phenomena such as gamma-ray bursts; isolated X-ray pulsa…
Since its successful launch in 2017, the Insight Hard X-ray Modulation Telescope (Insight-HXMT) has been operating continuously for over 8 years, accumulating massive observational data. In observations of multiple thermonuclear burst sources, it has detected more than 200 thermonuclear burst events…
Thanks to the wide energy band (1–250 keV) and large effective area of the Insight Hard X-ray Modulation Telescope (Insight-HXMT) satellite, it has achieved a series of important scientific results during its on-orbit operation. Insight-HXMT has monitored the outburst evolution of a batch of black h…
Weakly magnetized neutron star low-mass X-ray binaries generally refer to low-mass X-ray binary systems where the primary star (neutron star) has a magnetic field strength below 10^10 Gs. The neutron star accretes matter from the companion star via an accretion disk through Roche-lobe accretion, rel…
Since its launch in 2017, the Insight Hard X-ray Modulation Telescope (Insight-HXMT), leveraging its advantages of a broad energy band, large effective area, and high observation frequency, has become one of the most important astronomical satellites in the field of accreting X-ray pulsar research. …
Systematically reviews the primary measurement methods for the fundamental parameters of black holes—mass and spin—and briefly introduces distance measurement techniques for black hole binary systems. Through case studies, it demonstrates the importance of precise distance measurement for the correc…
Quasi-Periodic Oscillation (QPO) phenomena are ubiquitous in the light curves of X-ray binaries, and are generally believed to originate from accretion flows in close proximity to the compact star; consequently, QPOs serve as important probes for testing general relativistic effects in strong gravit…
This paper reviews the 6-year Galactic Plane Scan Survey conducted by Insight-HXMT (Insight Hard X-ray Modulation Telescope, Insight-HXMT), focusing on the monitoring and analysis of known X-ray sources in the Galactic plane. During the first six years of Insight-HXMT's in-orbit operation, it perfor…
This paper reviews the background characteristics of the Insight-Hard X-ray Modulation Telescope (Insight-HXMT) during the first 6 years of in-orbit operation, including the geographical distribution, energy spectrum, temporal variability characteristics, and long-term evolution of the in-orbit back…
The "Insight" Hard X-ray Modulation Telescope (abbreviated as Insight satellite, with the English name Insight Hard X-ray Modulation Telescope, abbreviated as Insight-HXMT or HXMT), launched on June 15, 2017, marks the birth of China's first domestically developed observatory-class X-ray telescope. …
Since its launch in June 2017, Insight-HXMT has achieved a large number of important research results in the field of high-energy astrophysics. Currently, the Insight-HXMT satellite is operating well in orbit and is expected to continue operating for several more years. To enable the domestic astron…
Subscribe-to-Open (S2O) is regarded as an alternative to the APC model. This model is poised for widespread adoption in 2025, garnering increasing attention from various stakeholders including libraries and publishers. Currently, there are no practical implementations of the S2O model domestically, …
Background Currently, hospital physical examination centers and communities primarily employ fasting plasma glucose and glycated hemoglobin as indicators for assessing blood glucose levels. Existing studies have investigated the diagnostic value of these two indicators when used alone or in combinat…
Isolated hypothyroxinemia in pregnancy represents a manifestation of thyroid hormone deficiency during gestation, which may impair fetal neurodevelopment and increase the risks of miscarriage, preterm delivery, and gestational diabetes mellitus; however, its underlying mechanisms, optimal therapeuti…
Background Risperidone, as an antipsychotic agent, is widely used in the treatment of schizophrenia and other mental disorders. Although therapeutic drug monitoring (TDM) of risperidone plasma concentrations has been implemented for many years both domestically and internationally, consensus has not…
Hypertension is the leading modifiable risk factor for morbidity and mortality from cardiovascular diseases, and accurate blood pressure measurement is a critical factor in hypertension management. Traditional blood pressure measurement has limitations such as being intermittent, static, and unable …
**Background** Currently, cognitive impairment has become one of the risk factors for disability and death among older adults. Studies have found a correlation between parental literacy and cognitive function, while research on the mediating role of socioeconomic status (SES) between the two is rela…
Overweight and obesity are intimately associated with the pathogenesis of numerous chronic diseases. To address this health crisis, the American College of Sports Medicine published the 'Consensus Statement on Physical Activity and Overweight/Obesity in Adults' in 2024, advocating for the incorporat…
Background: Hypertension is a major chronic disease managed by primary healthcare institutions in China. Cardiac autonomic dysfunction is a primary cause of blood pressure dysregulation and adverse cardiovascular events. Therefore, exploring the relationship between elderly hypertensive patients and…
**Background**: Malignant pleural effusion represents a critical indicator of advanced-stage malignancy and metastasis. Current diagnostic modalities for characterizing pleural effusion exhibit limitations that preclude timely and effective determination of effusion nature. The majority of malignant…
**Background** In China, college students have become a high-risk population for depression. Maladaptive attentional bias and interpretive bias constitute important factors in the onset and maintenance of depression. While previous studies have examined the characteristics of attentional bias and in…
To address the global issue of regional imbalance in health workforce distribution, numerous governments worldwide have implemented diversified talent cultivation programs tailored to their national contexts. Since 2010, China has promulgated the free training policy for rural order-directed medical…
[Purpose/Significance] As the core carrier of Red Culture, Red Archives not only engrave the regional collective Red memory but also carry the contemporary mission of continuing the Red gene and inheriting the Red lineage. At the critical juncture of planning the "15th Five-Year Plan," conducting re…
Transcranial alternating current stimulation (tACS) is a non-invasive electrical neuromodulation technique that delivers periodic microcurrents of specific frequencies to the scalp to modulate neural oscillations in particular brain regions, thereby altering specific cognitive functions or ameliorat…
Implicit emotion regulation is the process by which individuals change their emotions without conscious monitoring or explicit intention to regulate emotions. Compared with explicit emotion regulation, implicit emotion regulation relies less on the prefrontal executive control system. Building upon …
