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Clinical Feasibility of 3-D Acoustic Radiation Force Impulse (ARFI) Imaging for Targeted Prostate Biopsy Guidance.
Ultrason Imaging
January 2025
Department of Biomedical Engineering, Duke University, Durham, NC, USA.
Article Synopsis
- Developed a 3-D acoustic radiation force impulse (ARFI) system for prostate imaging to identify cancerous regions and guide biopsies in one visit using a transrectal probe and 3-D visualization software.
- The system was tested in a clinical trial comparing ARFI-guided targeted transperineal biopsies with other standard biopsy methods.
- Results showed ARFI was less effective for lower-grade cancers but performed well for higher-grade cancers, suggesting it could enhance biopsy accuracy when combined with 2-D imaging techniques.
Study on the determination method of excitation load in electrical signal simulation for piezoelectric ultrasonic internal inspection of pipelines.
Sci Rep
December 2024
School of Petroleum and Natural Gas Engineering, Southwest Petroleum University, Chengdu, 610500, China.
Accurately determining the initial acoustic field excitation load of a piezoelectric ultrasonic probe is essential for simulating electrical signals and calculating wall thickness during ultrasonic internal inspection of pipelines. A new method for determining the initial excitation load of the acoustic field is proposed, incorporating the focusing effect of the curved surface of pipelines on the ultrasonic signal from the piezoelectric ultrasonic probe. Finite element models were established for the new and old methods using COMSOL software, facilitating the analysis of the initial acoustic field distribution and associated electrical signal characteristics.
View Article and Find Full Text PDFExperimental Evaluation of Concrete Blended with Eco-Friendly Bio-Sulfur as a Cement Replacement Material.
Materials (Basel)
December 2024
Department of Fire and Disaster Prevention, Semyung University, Jecheon-si 27136, Choongbuk, Republic of Korea.
Bio-sulfur (BS), extracted from landfill bio-gas via microbial methods, was examined herein as a potential cement replacement material. The study developed five modified BS variants through limestone incorporation processes (sulfur-to-limestone ratios of 1:0.5, 1:1, 1:1.
View Article and Find Full Text PDFProduction of flame-retardant phosphorylated cellulose nanofibrils by choline chloride based reactive deep eutectic solvent.
Carbohydr Polym
January 2025
Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), College of Textiles and Clothing, Qingdao University, Ningxia Road, 308, Qingdao 266071, China; State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, China; National Innovation Center of Advanced Dyeing & Finishing Technology, Tai'an, Shandong 271000, China. Electronic address:
Nanocellulose, a biomass resource known for its abundance, renewability, environmental friendliness, and nanoscale size, has garnered significant interest from researchers. However, it is a type of carbohydrate that burns very easily, which limits its applications, especially in areas where good thermal stability and low flammability are requested. In this study, phosphorylated cellulose fibers (P-CF) was prepared via ternary choline chloride/urea/ phosphorous acid reactive deep eutectic solvent (RDES) pretreatment.
View Article and Find Full Text PDFMultifunctional Nacre-Like Nanocomposite Papers for Electromagnetic Interference Shielding via Heterocyclic Aramid/MXene Template-Assisted In-Situ Polypyrrole Assembly.
Nanomicro Lett
October 2024
National Key Laboratory of Science and Technology On Advanced Composites in Special Environments, Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin, 150080, People's Republic of China.
Robust, ultra-flexible, and multifunctional MXene-based electromagnetic interference (EMI) shielding nanocomposite films exhibit enormous potential for applications in artificial intelligence, wireless telecommunication, and portable/wearable electronic equipment. In this work, a nacre-inspired multifunctional heterocyclic aramid (HA)/MXene@polypyrrole (PPy) (HMP) nanocomposite paper with large-scale, high strength, super toughness, and excellent tolerance to complex conditions is fabricated through the strategy of HA/MXene hydrogel template-assisted in-situ assembly of PPy. Benefiting from the "brick-and-mortar" layered structure and the strong hydrogen-bonding interactions among MXene, HA, and PPy, the paper exhibits remarkable mechanical performances, including high tensile strength (309.
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