نتایج جستجو برای: template growth
تعداد نتایج: 860620 فیلتر نتایج به سال:
Crystallization phenomena of organic soft materials occurring in template-controlling systems such as emulsions, vesicles, micelles and air-water interfaces have been discussed by reviewing recent work. Long-chain molecular crystals and amino acids were chosen as the model substances of the organic soft materials which are key materials in food, pharmaceutical, nuetraceutical, cosmetic, and oth...
Molecular sieving MFI-type zeolite membranes were prepared by a secondary growth method without using an organic template. Silicalite membranes with intercrystalline pores minimized or eliminated were obtained by this synthesis method which avoids the template removal step. The silicalite membrane exhibits molecular sieving characteristics with pervaporation separation factor for p-xylene to o-...
We investigated in situ the growth of a sputter-deposited gold film (sputtering rate R = 3.2 nm/min) on top of a pre-structured colloidal polymer template using grazing incidence small-angle X-ray scattering (GISAXS [5]). The underlying colloidal polymer template was deposited by using the novel technique of airbrush-spray coating, allowing for the installation of stripe-like trapezoidal patter...
Understanding and controlling synthesis processes are key scientific challenges which are needed to achieve significant advances in the field of nanomaterials. Single-walled carbon nanotubes (SWCNTs) have unusual physical-chemical properties that make them promising materials for a large number of innovative applications in electronics, biomedicine, micro and nano separations among others. Thei...
Template assisted selective epitaxy (TASE) offers an attractive monolithic integration route for III-V semiconductors on Si, benefitting from reduced defect density and versatility in its employment to create various electronic photonic devices. This work achieves compositional morphological control of lattice matched InGaAs quantum wells embedded a horizontal InP nanowire grown directly Si see...
The sensitivity and limits of detection (LOD) chemiresistive gas sensors can often be improved by increasing the surface area sensing material that interacts with analyte. This process is referred to as nanostructuring. Nanostructured polypyrrole (PPy) for ammonia were created aid a nanosphere template. Polystyrene nanospheres are deposited form template between interdigitated electrodes, chron...
We present a novel approach of shape matching and recognition of 3D objects using arti"cial potential "elds. The potential model assumes that boundary of every 3D template object of identical volume is uniformly charged. An initially small input object placed inside a template object will experience repulsive force and torque arising from the potential "eld. A better match in shape between the ...
Implementation and Comparative Analysis of Rotation Invariance Techniques in Fingerprint Recognition
In the image processing systems, the input image is first preprocessed, which may involve restoration, enhancement or just proper representation of the data. The most significant problem in image analysis is the detection of presence of an object within a given scene or an image. Such a problem occurs in trademarks classification and other areas like remote sensing for monitoring growth pattern...
Tau filaments are found in >20 neurodegenerative diseases. Yet, because of their enormous molecular weights and poor tendency to form highly ordered 3D crystal lattices, they have evaded high-resolution structure determination. Here, we studied 25 derivatized tau mutants by using electron paramagnetic resonance and fluorescence spectroscopy to report structural details of tau filaments. Based o...
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