نتایج جستجو برای: sem mapping

تعداد نتایج: 262393  

Journal: :Cadernos de Campo (São Paulo, 1991) 2016

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - پژوهشکده علوم انسانی و اجتماعی 1390

this study was an attempt to investigate and compare the effect of lexical inferencing and concept mapping on developing vocabulary retention of iranian language learners. sixty homogeneous students from different intact classes who were being taught as intermediate learners in sokhan english institute participated in this study. they were in different classes. a teacher made test as a pre-test...

Journal: :The Journal of parasitology 2003
Michael G Levy Jody L Gookin Matthew Poore Adam J Birkenheuer Michael J Dykstra R Wayne Litaker

Recently, several investigators have reported large-bowel diarrhea in cats associated with intestinal trichomonad parasites. These reports have presumptively identified the flagellates as Pentatrichomonas hominis, a n organism putatively capable of infecting the intestinal tracts of a number of mammalian hosts, including cats, dogs, and man. The purpose of the present study was to determine the...

2006
Dapeng Li Margaret W. Frey Antje J. Baeumner

Biotin has been successfully incorporated into polylactic acid (PLA) nanofibers through electrospinning to prepare membrane substrates for biosensors based on biotin–streptavidin specific binding. Biotin incorporated PLA nanofiber membranes were characterized with scanning electron microscopy (SEM), electron probe microanalysis (EPMA), and confocal microscopy. Under optimized conditions, small ...

2014
Yessi Jusman Siew Cheok Ng Noor Azuan Abu Osman

This paper investigated the effects of critical-point drying (CPD) and hexamethyldisilazane (HMDS) sample preparation techniques for cervical cells on field emission scanning electron microscopy and energy dispersive X-ray (FE-SEM/EDX). We investigated the visualization of cervical cell image and elemental distribution on the cervical cell for two techniques of sample preparation. Using FE-SEM/...

2013
Chia-Chi Chang Chun-Yung Chi Chun-Chung Chen Ningfeng Huang Shermin Arab Jing Qiu Michelle L. Povinelli P. Daniel Dapkus Stephen B. Cronin

We have recently demonstrated that GaAs nanosheets can be grown by metal-organic chemical vapor deposition (MOCVD). Here, we investigate these nanosheets by secondary electron scanning electron microscopy (SE-SEM) and electron beam induced current (EBIC) imaging. An abrupt boundary is observed between an initial growth region and an overgrowth region in the nanosheets. The SE-SEM contrast betwe...

2010
TS Perova J Wasyluk SA Kukushkin AV Osipov NA Feoktistov SA Grudinkin

A series of 3C-SiC films have been grown by a novel method of solid-gas phase epitaxy and studied by Raman scattering and scanning electron microscopy (SEM). It is shown that during the epitaxial growth in an atmosphere of CO, 3C-SiC films of high crystalline quality, with a thickness of 20 nm up to few hundreds nanometers can be formed on a (111) Si wafer, with a simultaneous growth of voids i...

2013
Rafał Wierzbicki Carsten Købler Mikkel R. B. Jensen Joanna Łopacińska Michael S. Schmidt Maciej Skolimowski Fabien Abeille Klaus Qvortrup Kristian Mølhave

Using high resolution focused ion beam scanning electron microscopy (FIB-SEM) we study the details of cell-nanostructure interactions using serial block face imaging. 3T3 Fibroblast cellular monolayers are cultured on flat glass as a control surface and on two types of nanostructured scaffold substrates made from silicon black (Nanograss) with low- and high nanowire density. After culturing for...

1997
A. Markwitz G. Demortier

The surface and layer state of thin ion-beam-irradiated Au–Al layers was investigated with scanning high-energy ion microscopy (SHEIM), RBS and SEM. The thin metal layers (90 nm Au top layer and 200 nm A layer deposited on polished glassy carbon) were produced by evaporation and subsequently irradiated with 2.0 MeV 4He‘ ions (ion current 300 nA; beam spot diameter 0.5 mm) to initiated the Au–Al...

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