نتایج جستجو برای: elliptical nano plate

تعداد نتایج: 133521  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1388

در این رساله، طراحی، اجراء و مدلسازی فرآیند nano-edm مورد بررسی و تحقیق قرار گرفت. به منظور تولید نانو- ابزار مناسب برای فرآیند nano-edm یک دستگاه اتوماتیک طراحی و ساخته شد که با استفاده از آن، تاثیر متغیرهای فرآیند ساخت بر خصوصیات نانو- ابزار مورد تحقیق قرار گرفت. با شناسایی سطوح بهینه متغیرهای فرآیند ساخت به روش تاگوچی، نانو- ابزارهایی با شعاع نوک حدود 10 نانومتر و ضریب جانبی (نسبت طول به شعا...

2011
Motonobu Goto Siti Machmudah Armando T. Quitain Mitsuru Sasaki

Fabrication of nano-structured materials has been developed by performing pulsed laser ablation of copper, gold, and silver plates in supercritical CO2. The metal nano-structured particles were successfully generated with allowing the selective generation of clusters. Laser ablation was performed with an excitation wavelength of 532 nm. On the basis of the experimental result, both surface of a...

2007
Peter Molnar Joann M. Stock

We present a method for calculating the radial axis. Other pole positions about which uncertainties in plate reconstructions that does finite rotations bring magnetic anomalies and not describe the uncertainty in terms of fracture zones from one plate into near uncertainties in pole positions and rotation coincidence with those of the other plate will angles. If a fit of magnetic anomalies of t...

Journal: :Biology letters 2015
Katrin Kronenberger Fritz Vollrath

Most spider threads are on the micrometre and sub-micrometre scale. Yet, there are some spiders that spin true nano-scale fibres such as the cribellate orb spider, Uloborus plumipes. Here, we analyse the highly specialized capture silk-spinning system of this spider and compare it with the silk extrusion systems of the more standard spider dragline threads. The cribellar silk extrusion system c...

2014
M. Callisti F. D. Tichelaar B. G. Mellor Mauro Callisti

The microstructure of sputter deposited Ti-rich Ni-Ti thin films doped with Cu in the range 020.4 at.% and annealed for 1 h at 500 and 600°C has been investigated and correlated with the mechanical properties of the films measured by depth-sensing nanoindentation. X-ray diffraction analysis showed the microstructural evolution of Ni-Ti thin films when doped with Cu and annealed at different tem...

Introduction: Scaffold has therole of the extracellular matrix in regulating cell survival and it is an important component in tissue engineering techniques. One of the scaffolds that was used in this field, was PLLA (poly L-lactic acid) which was usually prepared by electro spinning method. The purpose of this study was to evaluate the biocompatibility of nano-porous PLLA membrane on prolifera...

Journal: :journal of ultrafine grained and nanostructured materials 2012
a. mostafapour s. t. khandani

friction stir processing was applied for fabricating an aluminum alloy based hybrid nano composite reinforced with nano sized al2o3 and micro sized graphite particles. a mixture of al2o3 and graphite particles was packed into a groove with 1 mm width and 4.5 mm depth, which had been cut in 5083 aluminum plate of 10 mm thick. packed groove was subjected to friction stir processing in order to im...

Journal: :journal of particle science & technology 2015
mohammad kazemeini amir charkhi seyyed javad ahmadi

in order to investigate the gas separation ability of a column packed with nanozeolitic material, nano nay zeolite was synthesized and granulated. these uniform granules packed in a chromatographic column were utilized for separation of xe and kr under various operating conditions. with regards to the response peaks obtained from trace injections of xe and kr into the column, the first and seco...

2017
Ajay Kumar Gupta V. K. Rao

Study of biophysical interactions have been carried out using specific combination of proteins such as Brucella abortus cell envelop protein (as antigen) and its complementary antibody (raised in mice and rabbit). A best optimized composition of biocompatible CeO2 nano-octahedra and other biocompatible materials (chitosan) was used in this study. Linear range was found in the range of 6.25 μg/m...

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