Results 51 to 60 of about 1,102,117 (347)

Ytterbium doped nano-crystalline optical fiber for reduced photodarkening

, 2010
We report suppression of photodarkening in Yb-doped nano-crystalline fibers in silica host. The photodarkening induced loss reduced by 20 times compared to Yb-doped aluminosilicate fibers. The laser efficiency of the nano-crystalline fiber was 79%
Bhadra, S.K., Boyland, A.J., Das, S., Kalita, M.P., Pal, M., Paul, M.C., Standish, R.J., Webb, A., Yoo, S.   +8 more
core   +1 more source

Porphyrin-magnetite nanoconjugates for biological imaging [PDF]

, 2011
<p>Background: The use of silica coated magnetic nanoparticles as contrast agents has resulted in the production of highly stable, non-toxic solutions that can be manipulated via an external magnetic field.
Byrne, S.J., Conroy, J., Corr, S.A., Gun'ko, Y.K., Nowostawska, M., Volkov, Y.   +5 more
core   +3 more sources

Thick multilayered (silica/gold) dipole nano-antenna

Applied Optics, 2015
Nano-antennas are the optical equivalent of antennas that are used to transmit and receive information at radio frequencies. These antennas have been used in different applications in photonics such as optical imaging, particle manipulation, bio-sensing, and improvement of the performance of solar cells. In this article we study composite nano-antennas
Khaleque, Abdul, Mironov, Evgeny G., Liu, Liming, Hattori, Haroldo T.   +3 more
openaire   +3 more sources

Towards Designing Durable Sculptural Elements: Ensemble Learning in Predicting Compressive Strength of Fiber-Reinforced Nano-Silica Modified Concrete

Buildings
Fiber-reinforced nano-silica concrete (FrRNSC) was applied to a concrete sculpture to address the issue of brittle fracture, and the primary objective of this study was to explore the potential of hybridizing the Grey Wolf Optimizer (GWO) with four ...
Ranran Wang, Jun Zhang, Yijun Lu, Jiandong Huang   +3 more
semanticscholar   +1 more source

Nano-silica Derived from Coal Fly Ash: A Sustainable Iron (III) Ion Adsorbent [PDF]

Journal of Water and Environmental Nanotechnology
Indonesia, as a country reliant on coal-fired power plants, produces substantial coal fly ash (CFA) waste, posing serious environmental and health risks.
Rosalina Hasan, Fatimah Mustafawi Muhammadi, Imas Solihat, Elisa Listianti, Muhammad Iskandar Ishaq, Yasinta Rahmatul Putri, Putri Alfiani   +6 more
doaj   +1 more source

Application of hydrophobic fluorinated silicon oxide nanoparticle coating on electrodynamic screen (EDS) films for enhancing self-cleaning function of solar collectors [PDF]

, 2020
Optical surfaces, which are exposed to outdoor environmental conditions, are susceptible to dust deposition. Sunlight incident on the surface of photovoltaic (PV) modules is attenuated by the dust layer accumulation on the front surface of the modules ...
Guo, Yuchun
core  

Silicon Derived from Glass Bottles as Anode Materials for Lithium Ion Full Cell Batteries. [PDF]

, 2017
Every year many tons of waste glass end up in landfills without proper recycling, which aggravates the burden of waste disposal in landfill. The conversion from un-recycled glass to favorable materials is of great significance for sustainable strategies.
Ahmed, Kazi, Bell, Jeffrey, Li, Changling, Liu, Chueh, Mutlu, Zafer, Ozkan, Cengiz S, Ozkan, Mihrimah, Wang, Wei, Ye, Rachel   +8 more
core   +1 more source

Zwitterion-Stabilized Silica Nanoparticles: Toward Nonstick Nano

Langmuir, 2010
Using a short-chain zwitterionic organosiloxane, silica nanoparticles were stabilized against aggregation by high ionic strength and/or proteins. Turbidimetry and dynamic light scattering showed that "zwitterated" nanoparticles did not exhibit a significant increase in hydrodynamic radius.
Zaki G, Estephan, Jad A, Jaber, Joseph B, Schlenoff   +2 more
openaire   +2 more sources

The Synergistic Effects of Hybrid Micro and Nano Silica in Influencing the Mechanical Properties of Epoxy Composites—A New Model

Polymers, 2022
Highlights Micro silica and nano silica are found to yield similar effects in influencing the values of Young’s modulus. The values of Young’s modulus of hybrid silica particle are higher than single filler, at the same weight loading.
Raja Nor Raja Othman, Dinesh Kumar Subramaniam, N. Ezani, M. Abdullah, K. Z. Ku Ahmad   +4 more
semanticscholar   +1 more source

Reduction of cement consumption by the aid of silica nano-particles (investigation on concrete properties)

Journal of Civil Engineering and Management, 2012
In this study, effects of replacing cement with colloidal amorphous silica nano-particles have been experimentally investigated on the physical and mechanical properties, durability and microstructure of concrete. Experimental results include workability,
Hadi Bahadori, Payam Hosseini
doaj   +1 more source