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Acoustic emission characteristics and damage constitutive model of fractured sandstone under uniaxial compression.
Sci Rep
January 2025
Guizhou Energy Group Co., Ltd., Guiyang, 550081, Guizhou, China.
To investigate the statistical laws of acoustic emission energy (AEE) avalanche dynamics of sandstone under varying fracture lengths and dip angles, as well as to determine the relationship between acoustic emission (AE) parameters and damage variables, we studied the mechanical properties and AE characteristics of sandstone with a single fracture subjected to uniaxial compression with the aid of the Shimadzu AG-IS test system and the PCI-2 AE system. The AEE characteristics of fractured sandstone under load were analyzed based on the statistical method of avalanche dynamics, with emphasis on AEE distribution, aftershock sequence, and waiting time distribution. The Weibull distribution function that incorporates a correction coefficient β was employed to optimize the Weibull parameters based on the strain equivalent hypothesis theory, which led to the establishment of a statistical damage constitutive model for fractured rock.
View Article and Find Full Text PDFNon-Tuberculous Mycobacterial Infection in AIDS Patients: A Detailed Description of 4 Cases, Including Histopathological Finding.
Rev Med Chil
September 2024
Laboratorio Biología Molecular, Hospital Base de Valdivia, Valdivia, Chile.
Unlabelled: Non tuberculous mycobacteria (NTM) are important opportunistic infection in patients with AIDS.
Aim: To present 4 cases of disseminated infections by NTM in patients with AIDS.
Results: These cases were associated with prolonged symptoms of fever, weight loss, diarrhea or cough, with hepatosplenomegaly, anemia and thrombocytopenia.
Disaster emergency meal plans for Korean patients who require hemodialysis.
Kidney Res Clin Pract
January 2025
Basic-Clinical Convergence Research Institute, University of Ulsan, Ulsan, Republic of Korea.
Proactive planning and preparation are critical to the safety of patients on dialysis during emergencies, such as natural disasters, and pandemics, such as coronavirus disease 2019. Patients with end-stage kidney disease are particularly vulnerable to disruptions such as power outages, water shortages, transportation issues, and dialysis center closures because they can result in missed dialysis sessions and severe health deterioration. This study aimed to develop tailored dietary guidelines for Korean patients on hemodialysis by applying the U.
View Article and Find Full Text PDFMicroneedle patch-involved local therapy synergized with immune checkpoint inhibitor for pre- and post-operative cancer treatment.
J Control Release
January 2025
State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China; NMPA Key Laboratory for Research and Evaluation of Cosmetics, China Pharmaceutical University, Nanjing 211198, PR China. Electronic address:
The metastasis and recurrence of cancer post-surgery remain the major reasons for treatment failures. Herein, a photo-immune nanoparticle decorating with M1 macrophage membrane (BD@LM) is designed based on the inflammatory environment after surgical resection. By loading photosensitizer black phosphorus quantum dots (BPQDs) and chemotherapeutics doxorubicin (DOX) in BD@LM nanoparticles, an effective chemophototherapy-mediated immunogenic cell death of tumor cells is triggered, subsequently leading to the maturation of dendritic cells for further immune cascade.
View Article and Find Full Text PDFThe effectiveness of arbuscular mycorrhizal fungal species (, , and ) in the biocontrol of root and crown rot pathogens, and mixture in pepper.
PeerJ
January 2025
Plant Health Department, GAP Agricultural Research Institute, Şanlıurfa, Turkey.
This study evaluated the effectiveness of arbuscular mycorrhizal fungi (AMF) species, including (FM), (RI), (CE), and a Mycorrhizal mix (MM) comprising these three species, on pepper plants ( L.) inoculated with two isolates of (48- and 18-) and two isolates of mix (50-F. mixture and 147-F.
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