نتایج جستجو برای: sem edx analysis

تعداد نتایج: 2873150  

2015
Luegya Amorim Henriques Knop Ana Prates Soares Ricardo Lima Shintcovsk Lidia Parsekian Martins Luiz Gonzaga Gandini

Aim: To assess the surface topography and chemical composition of three brands of as-received mini-implants (SIN®, Morelli®, and Conexao®). Methods: Twelve mini-implants of each brand were analyzed by scanning electron microscopy and energy dispersive X-ray (EDX). Results: There was no significant differences among SIN®, Morelli®, and Conexao® mini-implants comparing their surface topography by...

2012
Syed Ghazanfar Hussain Deming Liu Xintang Huang R K Sharma Sandeep Patel

In this work ZnO and Mn-doped ZnO nanocrystals were synthesized by one-step aqueous solution method. X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive x-ray (EDX) analysis and photoluminescence (PL) spectroscopy have been used to characterize the samples in detail. The XRD studies revealed that the ZnO and Mn-doped ZnO had wurtzite structure (hexagonal). The composi...

پایان نامه :دانشگاه تربیت معلم - سبزوار - دانشکده علوم پایه 1393

یک روش بیولوژیکی سازگار با محیط زیست برای سنتز نانوذرات نقره توسط سویه ی اینتروباکتر ckcr-8 در این تحقیق، توصیف شده است. باکتری از معادن کروم جداسازی شد، و مشخص گردید که این باکتری دارای توانایی کاهش نقره (+) به نقره (0)، تحت شرایط in vitro می باشد. رنگ حدواسط از زرد به قهوه ای تغییر پیدا کرد و اینگونه نشانه های اولیه حضور نانوذرات برای ما به اثبات رسید. درادامه، برای تحقیق بیشتر در مورد نانوذر...

Journal: :Brazilian dental journal 2014
Shelon Cristina Souza Pinto Sérgio Paulo Hilgenberg Denise Stadler Wambier Paulo Vitor Farago Matheus Coelho Bandéca Fábio André Santos

Dentifrices with different compositions are available on the market, but there is limited information about their properties. The aim of this in vitro study was to evaluate the physicochemical characteristics of 12 dentifrices divided into three categories, as containing desensitizing agents, Triclosan or whitening agents. Desiccation loss/residue analysis: 5 g of dentifrice was weighed five ti...

Journal: :Chemical communications 2008
Satoshi Horikoshi Junichi Tsuzuki Futoshi Sakai Masatsugu Kajitani Nick Serpone

The Urushibara Ni (U-Ni) hydrogenation catalyst and some modified forms, and for comparison Raney-Ni, were subjected to conventional (oil bath) and MW heating, and subsequently characterized by electron dispersive X-ray analysis (EDX), by BET surface area, and by scanning electron microscopy (SEM); yields of the catalyzed hydrogenation of acetophenone to 1-phenylethanol in 2-propanol by one of ...

2014
James French Ruth Morgan James Davy

Gunshot residue (GSR) is produced when a firearm is discharged and is routinely used in the forensic reconstruction of incidents involving firearms. SEM-EDX with automated detection and analysis software was used to investigate the extent of GSR secondary transfer following the discharge of a firearm. A series of experiments, which mimicked real-world scenarios, was set up to explore these unde...

2015

This manuscript presents the characterization of individual ice nucleating and ice residual particles using SEM/EDX analysis. The ice nucleating particle and ice particle residuals were collected by three different instruments. This study provides very useful information/insights on the comparison of sampling instruments/techniques for ice nuclei. The subject of the manuscript is suitable for p...

Journal: :Acta odontologica latinoamericana : AOL 2010
Elizabeta S Gjorgievska John W Nicholson

The purpose of this study was to investigate the enamel remineralization potential of two toothpastes, one of which was based on Recaldent (CPP- ACP) and the other on NovaMin (Calcium-sodium-phosphosilicate). Human permanent molar teeth were subjected to three consecutive demineralization cycles. These cycles were followed by remineralization of the experimental groups by toothpastes containing...

2010
Csaba Biro Peter Kovac Michal Palkovic Olia El-Hassoun Maria Caplovicova Jozef Novotny Jan Jakubovsky

Since the development of electron microscopy, it opened new horizons for medical and physical research. In forensic medicine, scanning electron microscopy with energy dispersing microanalyser (EDX) provides valuable information about the morphology of injuries, and injury implements. In the paper, we aim to confirm the potencialities of the use of scanning electron microscopy together with the ...

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