3,500 Result(s)
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Article
PMENet: a parallel UNet based on the fusion of multiple attention mechanisms for road crack segmentation
The presence of road cracks significantly impacts both traffic safety and road maintenance. Therefore, accurate detection of road cracks plays a crucial role in road maintenance and management. This study focu...
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Article
Open AccessOpen-hole extension limit of offshore extended-reach well considering formation collapse
The current extension limit prediction model for offshore extended-reach well (ERW) in mudstone does not consider the formation collapse, which poses a huge risk to offshore drilling construction. To address t...
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Open AccessPrediction of changes in war-induced population and CO2 emissions in Ukraine using social media
Monitoring the changes in population and anthropogenic CO2 emissions caused by geopolitical conflicts is significant for humanitarian assistance and also for revealing the CO2 emission patterns of human activitie...
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Improving the SO2 tolerance of CO2 reduction electrocatalysts using a polymer/catalyst/ionomer heterojunction design
The high concentrations of CO2 in industrial flue gases make these point sources attractive candidates for renewably powered electrocatalytic conversion of CO2 to products. However, trace SO2 in common flue gases...
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A modified improved alternating positive semi-definite splitting preconditioner for double saddle point problems
In this paper, to further enhance the efficiency of the improved alternating positive semi-definite splitting (IAPSS) preconditioner proposed by Ren et al. (Numer Algorithms 91:1363–1379, 2022. htt...
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Open AccessReinforced robotic bean optimization algorithm for cooperative target search of unmanned aerial vehicle swarm
Increasing attention has been given to the utilization of swarm intelligent optimization algorithms to facilitate cooperative target search of unmanned aerial vehicle swarm (UAVs). However, there exist common ...
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Static and temporal dynamic alterations of regional homogeneity in chronic insomnia: a resting-state fMRI study
To explore brain function alterations in chronic insomnia (CI). 65 CI patients and 48 healthy controls were included to analyze abnormal alterations in brain spontaneous activity using static regional homogene...
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Thermoelectric transport properties of p-type Bi2Se3–Sb2Se3–In2Se3 high entropy compounds
The introduction of entropy concept into thermoelectric materials recently has attracted broad interest. Herein, we showed the phase diagram of the ternary systems of Bi2Se3–Sb2Se3–In2Se3. Among the high entropy ...
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MicroRNA-322-5p targeting Smurf2 regulates the TGF-β/Smad pathway to protect cardiac function and inhibit myocardial infarction
Acute coronary artery blockage leads to acute myocardial infarction (AMI). Cardiomyocytes are terminally differentiated cells that rarely divide. Treatments preventing cardiomyocyte loss during AMI have a high...
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Deep Learning-based Privacy-preserving Publishing Method for Location Big Data in Vehicular Networks
In contemporary times, there is an increasing integration of Location-Based Service (LBS) enabled smart devices into the fabric of individuals’ daily lives. The prevalent era of large-scale models predicting user...
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Influence of build orientation and support structure on additive manufacturing of human knee replacements: a computational study
Developing patient-specific implants has an increasing interest in the application of emerging additive manufacturing (AM) technologies. On the other hand, despite advances in total knee replacement (TKR), stu...
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Microstructure and Properties Characteristics of Ni–25Cr–10Fe–xSi (x = 1, 2, 3, 4) Alloys for Waste Incineration Equipment
The long-term aging behavior and corrosion resistance of Ni–25Cr–10Fe–xSi (x = 1, 2, 3, 4) alloys with varying Si content were systematically investigated. Ni–25Cr–10Fe–xSi alloys exhibited satisfactory mechanica...
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Preparation and Characterization of Nb2O5/C-CNT Catalysts for the Selective Oxidation of Cyclopentene to Glutaraldehyde
A series of niobium-based catalysts with carboxylated multi-walled carbon nanotube (C-CNT) as support were prepared by modified wet-chemical technique under ultrasonication. Three types of catalysts with activ...
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Article
Non-singular terminal sliding mode control algorithm design based on extended state observer
This research takes the optical mirror polishing robot as the research object. The optical mirror polishing robot receives complex forces during the grinding process. Operational accuracy can be affected by gr...
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Non-invasive early detection on esophageal squamous cell carcinoma and precancerous lesions by microbial biomarkers combining epidemiological factors in China
Microbiota may be associated with esophageal squamous cell carcinoma (ESCC) development. However, it is not known the predictive value of microbial biomarkers combining epidemiological factors for the early de...
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How interfacial electron-donating defects influence the structure and charge of gold nanoparticles on TiO2 support
The reduction degree of TiO2 support is critical to the performances of metal catalysts. In many previous theoretical calculations, only the bridge oxygen vacancy (Ov) was considered as the electron-donating defe...
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Article
The happiness effect of Chinese ecological civilization construction: evidence from a quasi-natural experiment
The role of environment in promoting happiness has been well known, but the impact of the government’s ecological environment policy on residents’ happiness remains to be explored. This paper uses the first ba...
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Open AccessThe vacated space of volume/price of the drugs centralized procurement with quantity in secondary and above public hospitals of China
In 2018, the National Centralized Drug Procurement (NCDP) policy has been implemented in 11 provinces, and promoted across the country in 2019. The main feature of the policy is “volume for price”, therefore, ...
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Article
Detecting the Bull’s-Eye Effect in Seismic Inversion Low-Frequency Models Using the Optimized YOLOv7 Model
To detect bull’s-eye anomalies in low-frequency seismic inversion models, the study proposed an advanced method using an optimized you only look once version 7 (YOLOv7) model. This model is enhanced by integratin...
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Open AccessComparative clinical efficacy of percutaneous coaxial large-channel endoscopic lumbar interbody fusion and transforaminal lumbar interbody fusion for degenerative lumbar spinal stenosis: a retrospective study
This study aimed to evaluate the clinical efficacy of percutaneous coaxial large-channel endoscopic lumbar interbody fusion (PCLE-LIF) and transforaminal lumbar interbody fusion (TLIF) in the treatment of dege...