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Article
Open AccessDamage evolution law of multi-hole blasting igneous rock and quantitative evaluation model of damage degree based on fractal theory and clustering algorithm
The geological phenomenon of igneous rock invading coal seam is widely distributed, which induces mining risk and affects efficient mining. The pre-splitting blasting method of igneous rock is feasible but dif...
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Article
Open AccessEffects of equatorial plasma bubble-induced ionospheric gradients on GNSS PPP-RTK
Equatorial plasma bubble (EPB) exerts a severe threat to global navigation satellite system (GNSS) technique. It not only can lead to ionospheric scintillation, but also can create strong plasma gradients in i...
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Article
Mining-induced stress evolution mechanism and control technology of working face in deep coal seam bifurcation and merging area: a case study
The strong mine pressure disaster easily induced by the high stress concentration area of deep coal seam bifurcation and merging area (CSBMA). Zhangshuanglou Coal Mine was selected as the research site. Theore...
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Article
Open AccessSafety and efficacy of day anterior cervical discectomy and fusion procedure for degenerative cervical spondylosis: a retrospective analysis
Our study aimed to develop a day anterior cervical discectomy and fusion (ACDF) procedure to treat degenerative cervical spondylosis (DCS). The goal was to analyze its clinical implications, safety, and early ...
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Article
Multimodal data-driven prognostic model for predicting new-onset ST-elevation myocardial infarction following emergency percutaneous coronary intervention
We developed a nomogram model derived from inflammatory indices, clinical data, and imaging data to predict in-hospital major adverse cardiac and cerebrovascular events (MACCEs) following emergency percutaneou...
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Article
Open AccessStudy of energy-efficient heat resistance and cooling technology for high temperature working face with multiple heat sources in deep mine
In the present research, we proposed a scheme to address the issues of severe heat damage, high energy consumption, low cooling system efficiency, and wastage of cold capacity in mines. To elucidate the season...
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Article
Design, synthesis, and anti-aging effect evaluation of urolithin B and its amide derivatives on nematode Caenorhabditis elegans
Aging is a natural process, but with the increase of people’s average life expectancy, aging has brought great economic pressure and social burden to many countries and regions. As urolithin B (UB) is a natura...
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Article
Comparative study of ionospheric sporadic E occurrence rates using SNRnstd and S4 derived from GPS radio occultation
GPS radio occultation (GPS-RO) data, especially the parameters of signal-to-noise ratio normalized standard deviation (SNRnstd) and S4, are widely used to measure the ionospheric sporadic E (Es) layer. However, t...
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Article
Open AccessPredicting long-term prognosis after percutaneous coronary intervention in patients with new onset ST-elevation myocardial infarction: development and external validation of a nomogram model
The triglyceride glucose (TyG) index is a well-established biomarker for insulin resistance (IR) that shows correlation with poor outcomes in patients with coronary artery disease. We aimed to integrate the Ty...
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Article
Ionospheric disturbances of the January 15, 2022, Tonga volcanic eruption observed using the GNSS network in New Zealand
In this study, the ionospheric response related to the January 15, 2022, Tonga volcanic eruption is investigated using total electron content extracted from the global navigation satellite system network in Ne...
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Article
Open AccessNovel insights into the association between seasonal variations, blood pressure, and blood pressure variability in patients with new-onset essential hypertension
Blood pressure (BP) exhibits seasonal variations, with peaks reported in winter. However, the association between seasonal variations and blood pressure variability in patients with new-onset essential hyperte...
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Article
Open AccessDesign, synthesis, and biological evaluation of novel urolithins derivatives as potential phosphodiesterase II inhibitors
A series of urolithins derivatives were designed and synthesized, and their structures have been confirmed by 1H NMR, 13C NMR, and HR-MS. The inhibitory activity of these derivatives on phosphodiesterase II (PDE2...
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Article
Fractionation and identification of salty peptides from yeast extract
Salty taste is an important sensory attribute in many foods, which stimulates the appetite. But high-salt diets bring many health risks, and salty alternatives should be explored to solve this problem. The sal...
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Article
Large-area tsunami signatures in ionosphere observed by GPS TEC after the 2011 Tohoku earthquake
The internal gravity waves (IGWs) produced by a tsunami can travel into the ionosphere and trigger traveling ionospheric disturbances (TIDs). In this study, we report ionospheric measurements related to the hu...
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Article
Adopting gene expression programming to generate extension strategies for incompatible problem
Exploring solving strategies for incompatible problem is a challenging task. Although extension strategy generating method (ESGM) can address incompatible problem by expanding reasoning and extension transform...
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Article
Analysis of geometry-free residuals in case of traveling ionosphere disturbances and their impact cycle slip detection
We discuss the impact of a traveling ionospheric disturbance (TID) on cycle slip detection for the geometry-free (GF) combination. Based on the GF combination algorithm, we deduce for the first time the comput...
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Article
Open AccessObservation of ionospheric disturbances induced by the 2011 Tohoku tsunami using far-field GPS data in Hawaii
In this study, we employ far-field GPS total electron content (TEC) observed in Hawaii to detect the ionospheric disturbances induced by the 2011 Tohoku tsunami. We observed tsunami-driven traveling ionospheri...
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Article
Synthesis and characterization of pH-responsive carboxymethyl chitosan-g-polyacrylic acid hydrogels
In this work, carboxymethyl chitosan-g-polyacrylic acid (CMC-g-PAA) hydrogel was synthesized by a free radical grafting cross-linking route. The structure of the CMC-g-PAA hydrogels was characterized by a Four...
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Article
Response of artificial grassland carbon stock to management in mountain region of Southern Ningxia, China
Grassland is a major carbon sink in the terrestrial ecosystem. The dynamics of grassland carbon stock profoundly influence the global carbon cycle. In the published literatures so far, however, there are limit...
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Article
Inhibitory Effect of Gallic Acid on CCl4-Mediated Liver Fibrosis in Mice
The aim of this study was to investigate the effect of gallic acid (GA) on liver fibrosis induced by carbon tetrachloride (CCl4). Male BALB/c mice were randomly divided into four groups: normal control group (gro...
