Results 111 to 120 of about 72,062 (285)

Peculiarities of hydration of Portland cement with synthetic nano-silica

Selected Scientific Papers: Journal of Civil Engineering, 2017
Application of nano-materials in cement products significantly, improves their properties. Of course, the effectiveness of the materials depends on their quantity and the way they are introduced into the system.
Kotsay Galyna
doaj   +1 more source

Long-Term Mechanical Behavior of Nano Silica Sol Grouting

Nanomaterials, 2018
The longevity of grouting has a significant effect on the safe and sustainable operation of many engineering projects. A 500-day experiment was carried out to study the long-term mechanical behavior of nano silica sol grouting. The nano silica sol was activated with different proportions of a NaCl catalyst and cured under fluctuating temperature and ...
Dongjiang Pan, Nong Zhang, Chenghao Zhang, Deyu Qian, Changliang Han, Sen Yang   +5 more
openaire   +3 more sources

Proteins, Processing, and Properties of Adhesive Fluid Condensates Purified from Mussels

Advanced Functional Materials, EarlyView.
Mussels exhibit an unmatched proficiency for adhering to wet surfaces in salty environments—a remarkable ability that could inspire new biomedical and technical glues. The fluid protein condensates used to form the underwater mussel glue are extracted, reconstituted and characterized with advanced spectroscopy and nanomechanical analysis, revealing ...
Mathieu D. Rivard, Max Renner‐Rao, Nahid Hassanpour, Franziska Jehle, Chang‐Sheng Wang, Duy Anh Pham, Daniel J. Jackson, Xavier Banquy, Matthew J. Harrington   +8 more
wiley   +1 more source

Effect of nano-SiO2 (NS) on dolomite concrete towards alkali silica reaction

HBRC Journal, 2018
The aim of this work was to study the effect of nano silica on the physico-mechanical properties of concrete containing dolomite coarse aggregate and its effect on alkali silica reaction.
Salah Abd El-Ghany Abo El-Enein, Essam Abd El-Aziz Kishar, Sayieda Rawwash Refaey Zedan, Reham Abu-Elwafa Mohamed   +3 more
doaj   +1 more source

Photothermal Macroporous Lignin Cryogels for Off‐Grid, Continuous Atmospheric Water Collection via Interlayer Heat Recovery

Advanced Functional Materials, EarlyView.
Photothermal, macroporous lignin‐based cryogels are engineered to convert sunlight into low‐grade heat. Integrated as stacked beds in a drum‐type device, a thin copper interlayer transfers waste heat between beds, enabling interlayer heat recovery and continuous solar cycling.
Jie Yan, Jiqing Lu, Tian Bai, Lin Li, Zhaoxuan Niu, Yiying Yue, Wanli Cheng, Guangping Han, Orlando J. Rojas   +8 more
wiley   +1 more source

Effects of nano-silica on mechanical performance and microstructure of ultra-high performance concrete

Cerâmica
The use of nanoparticles in ultra-high strength concretes can result in a positive effect on mechanical performance of these cementitious materials. This study evaluated mixtures containing 10 and 20 wt% of silica fume, for which the optimum nano-silica ...
T. M. Mendes, W. L. Repette, P. J. Reis
doaj   +1 more source

Durabilidad y propiedades mecánicas del hormigón autocompactante con adición de microsílice y nano sílice [PDF]

, 2012
Con la creciente preocupación por el impacto ambiental de la industria del cemento, el uso de subproductos industriales en la fabricación del cemento y del hormigón ha cobrado gran interés en nuestros días, ya que permiten utilizar estos desechos ...
Gálvez Ruiz, Jaime, Lucea Martinez, Ildefonso, Moragues Terrades, Amparo, Romero Mendoza, Héctor Leonardo   +3 more
core  

Hybrid Microdiscs for Magnetically Induced Non‐Cytotoxic Thermal Actuation and Programmable Biomolecule Delivery

Advanced Functional Materials, EarlyView.
Hybrid magnetic microdiscs with customizable size and composition are engineered through refined photolithography and LbL assembly. Embedded Fe3O4 nanoparticles enable localized, non‐cytotoxic heating, while protein cargos can be incorporated in tunable quantities.
Daniela Iglesias‐Rojas, Danny Villanueva, Jon Mentxaka‐Salgado, Nerea Lete, Ane Olazagoitia‐Garmendia, Eduardo Fernández, Iñaki Orue, Alfredo García‐Arribas, Maria Luisa Fdez‐Gubieda, Ainara Castellanos‐Rubio, Robert Morel, Bernard Dieny, Maite Insausti, Idoia Castellanos‐Rubio   +13 more
wiley   +1 more source

Effects of Nanosilica Powder from Rice Hull Ash on Seed Germination of Tomato (Lycopersicon esculentum) [PDF]

, 2015
open5noNanosilica powders were synthesized from rice hull ash (RHA) and their effects on seed germination of tomato plants were investigated. Synthesized nanosilica powder was subjected to various characterization studies for identification of the size ...
De Silva, Diana Marie, Engelbert, Peralta, Fajardo, Alvin., Maria Morissa Lu,, Milagros, Peralta   +4 more
core  

Scalable Thermal Engineering via Femtosecond Laser‐Direct‐Written Phononic Nanostructures

Advanced Functional Materials, EarlyView.
This study demonstrates that femtosecond laser‐induced periodic surface structures (fs‐LIPSS) can function as phononic metasurfaces, reducing thermal conductivity below the plain thin‐film limit. Phonon Monte Carlo analysis reveals that the periodic structures restrict phonon mean free paths.
Hiroki Hamma, Roman Anufriev, Kazuyoshi Fushinobu, Masahiro Nomura, Byunggi Kim   +4 more
wiley   +1 more source