Results 81 to 90 of about 190,707 (309)

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Quantitative Evaluation of Focused Ultrasound with a Contrast Agent on Blood-Brain Barrier Disruption

, 2008
—The use of an ultrasound contrast agent (UCA) with focused ultrasound sonication has the potential to disrupt the blood-brain barrier (BBB) noninvasively and reversibly at target locations.
楊逢羿;符文美;楊榮森;林文澧, YANG, FENG-YI;FU, WEN-MEI;YANG, RONG- SEN;LIN, WIN-LI   +1 more
core  

HIGH-INTENSITY FOCUSED ULTRASOUND TREATMENT OF LATE-STAGE PANCREATIC BODY CARCINOMA: OPTIMAL TUMOR DEPTH FOR SAFE ABLATION

, 2014
Objective criteria are currently not available for assessing the extent of ablation by high-intensity focused ultrasound (HIFU). A retrospective review was conducted in Chinese patients with late-stage pancreatic body carcinoma treated with 1 h/d ...
Miao, Li-Ying, Jia, Jian-Wen, Cui, Li-Gang, Zheng, Cui-Shan, Chen, Wen, Ge, Hui-Yu, Xiong, Liu-Lin, Yan, Fang, Wang, Jin-Rui   +8 more
core   +1 more source

Electrochemical Evaluation of Compressed Selective Laser Melted AlSi7Mg and AlSi10Mg Alloys in Chloride Environment

Advanced Engineering Materials, EarlyView.
The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin, Samson Dare Oguntuyi, Peter Apata Olubambi   +2 more
wiley   +1 more source

Characterization of Aluminized Layers on Inconel‐738 Alloy: Microstructure, Modeling of Aluminizing Kinetics, and Thermal Behavior

Advanced Engineering Materials, EarlyView.
This study explored how effective nickel aluminide coatings are obtained in providing oxidation resistance applied to the Inconel 738 alloy, modeling with diffusion models. In the present study, kinetics and thermal behavior of the Inconel 738 alloy were studied by the low‐temperature thermoreactive aluminizing process, which was carried out at 625°C ...
Gozde Celebi Efe, Tuba Yener, Suayb Cagri Yener, Mourad Keddam, Cuma Bindal   +4 more
wiley   +1 more source

Noninvasiv sebészet MR-vezérelt fókuszált ultrahanggal: állatkísérletes modellek és klinikai tapasztalatok = Noninvasive surgery using MR-guided focused ultrasound: animal models and clinical experience

, 2009
Az MR vezérelt fókuszált ultrahang sebészet (MRgFUS) noninvasiv módon képes a szervezet belsejében daganatos sejteket elpusztítani. Kutatásainkban 1.) állatkísérletes modellen vizsgáltuk az ultrahang kontrasztanyag potencírozó szerepét, valamint 2 ...
Bajzik, Gábor, Balázs, György, Jólesz, Ferenc, Bérczi, Viktor, Belics, Zoran, Hüttl, Kálmán   +5 more
core  

Focused cardiac ultrasound: FoCUS [PDF]

Serbian Journal of Anesthesia and Intensive Therapy, 2019
Focused cardiac ultrasound (FoCUS) is defined as pointof-care ultrasound examination, preformed according to a standardized, but restricted, scanning protocol in order to quickly determine the etiologies of cardiac dysfunction. The use of focused cardiac
Petrović Olga, Stanisavljević Jovana, Stojadinović Milica, Mašulović Dragan, Đikić Marina, Milenković Marija   +5 more
doaj  

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Ultrasound stimulation of mandibular bone defect healing [PDF]

, 2004
The conclusions of the experimental work presented in this thesis are: 1. Low intensity pulsed ultrasound is not effective in stimulating bone growth into a rat mandibular defect, either with or without the use of osteoconductive membranes. 2.
Stegenga, B, Schortinghuis, J, Schortinghuis, Jurjen,, Schortinghuis, Jurjen, Ruben, JL, Raghoebar, GM   +5 more
core   +1 more source

Focused Ultrasound for Sarcomas: A Narrative Review

Current Oncology
Sarcomas are tumors of mesenchymal origin that are generally resistant to systemic therapies and prone to local recurrence despite current multimodal treatment approaches.
Nidhi Kuchimanchi, Nicolle Sul, Sai Gajula, Margaret Mercante, Emily Tocco, Mackenzie M. Mayhew, Lynn T. Dengel, Ludimila Cavalcante, Lauren Hadley, Russell Gardner Witt   +9 more
doaj   +1 more source