Results 61 to 70 of about 355,836 (158)

Characterization of Titanium Oxide Nanoparticles Obtained by Hydrolysis Reaction of Ethylene Glycol Solution of Alkoxide

open access: yesJournal of Nanotechnology, 2012
Transparent and stable sols of titanium oxide nanoparticles were obtained by heating a mixture of ethylene glycol solution of titanium tetraisopropoxide (TIP) and a NH3 aqueous solution at 368 K for 24 h.
Naofumi Uekawa   +4 more
doaj   +1 more source

Bridging Theory and Practice: Digital Twin Simulation of a Heat Exchanger in Laboratories for Engineering Students

open access: yesComputer Applications in Engineering Education, Volume 34, Issue 5, September 2026.
ABSTRACT Digital twins serve as virtual replicas of physical systems. They can be used as a tool for engineering education by revealing the underlying principles behind unit operations. The project aimed to integrate digital twins into university engineering lab courses, complementing traditional methods by bridging the gap between experimentation and ...
Carles Troyano Ferré   +5 more
wiley   +1 more source

T1-weighted axial MRI of the shoulder.

open access: yes, 2018
T1-weighted axial MRI of the shoulder at the level of the humeral head (H) showing increased signal suggestive of fatty replacement in the muscles at this level.
Giorgio Tasca (158511)   +16 more
core   +1 more source

Spontaneous Ag-Nanoparticle Growth at Single-Walled Carbon Nanotube Defect Sites: A Tool for In Situ Generation of SERS Substrate

open access: yesJournal of Nanotechnology, 2011
Silver nanoparticles were spontaneously formed on pristine and oxidized single-wall nanotubes. Nanoparticles were observed on carbon nanotubes with AFM, and the presence of Ag nanoparticles were confirmed by ESR experiments.
Jason Maley   +3 more
doaj   +1 more source

The FINE Index: A Frailty‐ and Immunonutrition‐Based Nomogram for Survival in Geriatric Breast Cancer: A Retrospective Study

open access: yesCancer Medicine, Volume 15, Issue 9, September 2026.
ABSTRACT Background Elderly breast cancer patients generally have a poorer prognosis. This study developed and validated the FINE Index, a nomogram integrating frailty, immunonutritional, and tumor indicators to predict overall survival (OS) in elderly patients undergoing surgery.
Xiwen Yang, Jiang Zhu
wiley   +1 more source

MYOCARDIAL T1 MAPPING BY A QUANTITATIVE SEGMENTAL APPROACH: NORMAL VALUES, EFFECTS OF AGING, AND GENDER DIFFERENCES [PDF]

open access: yes, 2022
openBackground Nel contesto della risonanza magnetica cardiaca (CMR) il mapping T1 consente una caratterizzazione precisa e quantitativa del tessuto miocardico e sta cambiando la gestione clinica dei pazienti cardiologici.
DAL POS, ELEONORA
core  

In Vitro Sperm–Epididymosomes Interaction Immediately Before Fertilization Changes Sperm Fertility Potential

open access: yesAndrology, Volume 14, Issue 6, Page 1757-1770, September 2026.
ABSTRACT Background Sperm acquire fertility ability during epididymal maturation mainly in the epididymal caput and corpus, and once matured, are stored in the epididymal cauda. During storage, interactions with cauda epididymosomes (epEVs) may influence sperm fertility potential; however, the role of such interactions on sperm fertility remains ...
Maíra Bianchi Rodrigues Alves   +7 more
wiley   +1 more source

Unadjusted and adjusted Cox regression beta coefficients and hazard ratios (resampled T0-T1-T2 subcohort).

open access: yes, 2019
Unadjusted and adjusted Cox regression beta coefficients and hazard ratios (resampled T0-T1-T2 subcohort).
Colin Jacobs (488114)   +5 more
core   +1 more source

Influence of α-MnO2 and Curing Temperature on Density and Microhardness of Epoxy Nanocomposites

open access: yesJournal of Nanotechnology
α-MnO2/epoxy nanocomposite shows great potential for structural and tribological applications. The properties of epoxy nanocomposites depended on weight percent (wt.%) loading of reinforcement material and curing temperature. Therefore, the current study
Md Zakir Hussain   +8 more
doaj   +1 more source

Study of Carbon Nanotube-Substrate Interaction

open access: yesJournal of Nanotechnology, 2012
Environmental effects are very important in nanoscience and nanotechnology. This work reviews the importance of the substrate in single-wall carbon nanotube properties.
Jaqueline S. Soares, Ado Jorio
doaj   +1 more source

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