نتایج جستجو برای: track etched membranes

تعداد نتایج: 160688  

2011
V.W.Y. Choi D. Nikezic T. Konishi K. N. Yu

One approach for a particle radiobiological experiments is to use solid-state nuclear track detectors (SSNTDs) as support substrates to record the a particle hit positions on the targets. To facilitate accurate characterization of the hit positions as well as the incident a particle energies, micro-collimators are required in these experiments to restrict the incidentaparticles to thosewith sma...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی 1393

asymmetric membranes are widely used in many industrial membrane separation processes. the major advantage of membrane filtration over the conventional process is its ability to remove a wider spectrum of particles without using any chemicals. hollow fiber configuration offer many advantages over flat-sheet or tubular membranes. the spinning process of hollow fiber may look simple, yet it is te...

2004
Luc Piraux

Nanochemistry fabrication methods have improved remarkably over the last few years. Among the different strategies developed to elaborate nanomaterials, the templating method is one of the most attractive as it has proven to be reliable for the synthesis of arrays of nanowires and nanotubules of desired composition, sizes and aspect ratios. Chemical and electrochemical techniques are used for s...

2007
J. Benavente R. de Lara

Electrochemical characterization of a symmetric track-etched polyethylenthereftalate (PET) membrane in contact with KCl solutions at different concentrations was carried out by measuring impedance spectroscopy (IS) and membrane potential (MP), which allow the estimation of membrane electrical resistance and ion transport numbers, respectively. IS measurements permit us the characterization of m...

2010
K Maaz S Karim M Usman A Mumtaz J Liu JL Duan M Maqbool

Cobalt nanowires with controlled diameters have been synthesized using electrochemical deposition in etched ion-track polycarbonate membranes. Structural characterization of these nanowires with diameter 70, 90, 120 nm and length 30 μm was performed by scanning electron microscopy, high-resolution transmission electron microscopy, and X-ray diffraction techniques. The as-prepared wires show uni...

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