نتایج جستجو برای: colloidal nano

تعداد نتایج: 67949  

Liquefaction is one of the most important and complex topics in geotechnical earthquake engineering. In recent years, passive site stabilization method has been proposed for non-disruptive mitigation of liquefaction risk at developed sites susceptible to liquefaction using colloidal nano-silica stabilizer. In this research, 4 box models were used to investigate the ability to uniformly deliver ...

Journal: :Physical chemistry chemical physics : PCCP 2014
A Mughal J K El Demellawi Sahraoui Chaieb

Nano-silicon is a nanostructured material in which quantum or spatial confinement is the origin of the material's luminescence. When nano-silicon is broken into colloidal crystalline nanoparticles, its luminescence can be tuned across the visible spectrum only when the sizes of the nanoparticles, which are obtained via painstaking filtration methods that are difficult to scale up because of low...

Journal: Nanochemistry Research 2019

An efficient and rapid method for the synthesis of 3,4,5-substituted furan-2 (5H)-ones has been achieved through a three-component reaction of aniline, dialkyl acetylenedicarboxylate, and aromatic aldehydes using nano-colloidal silica-tethered polyhedral oligomeric silsesquioxanes with eight branches of 3-aminopropyltriethoxysilane (nano-colloidal silica @APTPOSS) as a superior catalyst under m...

Journal: :Environmental science & technology 2011
Jed Costanza Amro M El Badawy Thabet M Tolaymat

Nanosilver is one nanomaterial that is currently under a lot of scrutiny. Much of the discussion is based on the assumption that nanosilver is something new that has not been seen until recently and that the advances in nanotechnology opened completely new application areas for silver. However, we show in this analysis that nanosilver in the form of colloidal silver has been used for more than ...

Journal: :ecopersia 2013
mohammad reza kalbassi seyed ali johari mahdi soltani il yu

in order to understand the importance of particle size and agglomeration for nano-eco-toxicological studies in aquatic environments, the acute toxicity of two different types (suspended powder and colloidal) of silver nanoparticles (agnps) were studied in alevin and juvenilerainbow trout. fish were exposed to each type of agnps at nominal concentrations of 0.032, 0.1, 0.32, 1, 3.2, 10, 32, and ...

Journal: :جنگل و فرآورده های چوب 0
الیاس افرا دکتری مهرناز اسکندری دانشآموخته دانشگاه علوم کشاورزی و منابع طبیعی گرگان محمد رضا دهقانی فیروزآبادی دانشیار صنایع خمیر و کاغذ، دانشگاه علوم کشاورزی و منابع طبیعی گرگان

this study was conducted to enhance the antimicrobial properties and water absorption of sanitary papers. for this purpose, montmorillonite nano clay with bentonite brand (has a layered structure in which its thickness is nano metric), was processed with homogenizer to achieve a stable colloidal system with nanometer dimensions of particle size. then, different weight levels of raw and homogeni...

Liquefaction is one of the most important and complex topics in geotechnical earthquake engineering. In recent years, passive site stabilization method has been proposed for non-disruptive mitigation of liquefaction risk at developed sites susceptible to liquefaction using colloidal nano-silica stabilizer. In this research, 4 box models were used to investigate the ability to uniformly deliver ...

2002
N. F. Nasr

Life secrets lie in invisible world which excites imagine to study. Nowadays, nanotechnology became public terminology for applications of nano-size (nm = 10 meter) in all sciences. Nano-particles already present in nature such as living cell structures (proteins, DNA, polysaccharides, membranes, etc.) and natural structures such as casein micelles or starch, the folding of globular proteins an...

شعاری‌نژاد, سعیده, ناصری, دولت,

 The stable colloidal dispersions of magnetic nano-particles in nematic liquid crystals are called ferronematics. Their behaviour in magnetic fields depends on various parameters such as anchoring energy, magnetic anisotropy, and shape and volume fraction of the particles. In the present paper, the threshold field is obtained for these colloidal nematics. Then, the influence of magnetic anisotr...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید