نتایج جستجو برای: Microscopy

تعداد نتایج: 192285  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1389

in this thesis, a new optically active poly(amide-imide) (pai) was synthesized by the indirect polycondensation reaction of the l-phenylalanine based diacid chloride and 4,4?-diaminodiphenylether in the presence of triethylamine in n-methyl-2-pyrrolidone. the formation of pai was confirmed by ftir, 1h nmr and elemental analysis. in next step, the surface of titanium dioxide (tio2) nanoparticles...

Journal: :international journal of nano dimension 0
z. sobat catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran. s. sadegh hassani catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran.

scanning near-field optical microscopy (snom) is a member of scanning probe microscopes (spms) family which enables nanostructure investigation of the surfaces on a wide range of materials. in fact, snom combines the spm technology to the optical microscopy and in this way provide a powerful tool to study nano-structures with very high spatial resolution. in this paper, a qualified overview of ...

Journal: :journal of dentistry, tehran university of medical sciences 0
ka. al-salihi associated professor, department of craniofacial and oral sciences, school of dental sciences, unive naba. tarmidzi dental officer, department of clinical studies, school of dental sciences, university sains malaysia

objective: confocal laser scanning microscopy (clsm) is relatively a new light microscopical imaging technique with a wide range of applications in biological sciences. primary value of clsm for the biologist is its ability to provide optical sections from three-dimensional specimen. the present study was designed to assess the thickness content of in vivo accumulated dental plaque using clsm a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان 1387

چکیده ندارد.

Journal: :international journal of nano dimension 0
a. pourahmad department of chemistry, guilan science and research branch, islamic azad university, guilan, iran.

we report the growth by ion exchange synthesis of zns nanoparticles in mcm-41 matrices using zn (ch3coo)2 and na2s starting sources. the final product (zns/mcm-41) was characterized by x-ray diffraction (xrd) pattern, transmission electron microscopy (tem), scanning electron microscopy (sem), infrared spectrometry (ir) and uv-vis spectroscopy. its crystalline structure and morphology was studie...

Journal: :iranian journal of medical physics 0
seyed vahab shojaedini electrical and computer engineering department, iranian research organization for science and technology, tehran, iran.

introduction the morphologic features of human sperms are key indicators for monitoring fertility problems in men. therefore, automated analyzing methods via microscopic videos have become the most favorite policy in infertility treatment during the last decades. materials and methods in the proposed method, firstly a hypothesis testing framework was defined to distinguish sperms from backgroun...

Journal: :iranian journal of parasitology 0
saba shahzadi department of zoology, university of punjab, pakistan. tanveer akhtar department of zoology, university of punjab, pakistan. atif hanif quality operation laboratories, university of veterinary and animal sciences, pakistan. sumrin sahar department of zoology, university of punjab, pakistan. sadaf niaz department of zoology, university of punjab, pakistan. hazrat bilal medical entomology and disease vector control, health services academy islamabad, pakistan.

background: malaria is well known for its fatalities worldwide, plasmodium vivax and the plasmodium falciparum are the two important species of malaria reported from pakistan and creating lots of morbidities across the country. method: study was conducted to determine the surveillance of malaria in south punjab by microscopy and polymerase chain reaction (pcr). result : 40 samples out of 100 pa...

Journal: :iranian journal of pathology 2008
fatemeh mahjoub farrokh tirgari zarrin keyhani nargess tabarzan saghi vaziri

muscle tissue, skeletal muscle as well as cardiac muscle, is commonly affected in mitochondrial disorders. one explanation for this observation is that muscle tissue has a high-energy demand and therefore is more sensitive to a deficiency of mitochondrial energy production than some other tissues. in mitochondrial disorders, skeletal muscle tissue may be affected primarily by defective respirat...

Journal: :international journal of nano dimension 0
milad fardi nanotechnology research center, research institute of petroleum industry (ripi), west blvd. azadi sport complex, po box 14665-137, tehran, iran.سازمان اصلی تایید شده: پژوهشگاه صنعت نفت (research institute of petroleum industry) sedigheh sadegh hassani nanotechnology research center, research institute of petroleum industry (ripi), west blvd. azadi sport complex, po box 14665-137, tehran, iran.سازمان اصلی تایید شده: پژوهشگاه صنعت نفت (research institute of petroleum industry)

scanning impedance microscopy (sim) is one of the novel scanning probe microscopy (spm) techniques, which has been developed to taking image from sample surface, providing quantitative information with high lateral resolution on the interface capacitance, and investigating the local capacitance–voltage (c–v) behavior of the interface and ac transport properties. the sim is an ordinary afm equip...

Journal: :international journal of nano dimension 0
z. sobat catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran. s. sadegh hassani catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran. m. ghalbi ahangari science and chemical technology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran. s. kiani catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran. a. mehdizadeh catalysis and nanotechnology research division, research institute of petroleum industry, p. o. box: 1485733111, tehran, iran.

scanning hall probe microscopy (shpm) is a scanning probe microscopy technique developed to observe and image magnetic fields locally. this method is based on application of the hall effect, supplied by a micro hall probe attached to the end of cantilever as a sensor.  shpm provides direct quantitative information on the magnetic state of a material and can also image magnetic induction under a...

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