نتایج جستجو برای: internal curing

تعداد نتایج: 242879  

2013
Yoshihiro Kawano Christopher Higgins Yasuhito Yamamoto Julie Nyhus Amy Bernard Hong-Wei Dong Harvey J. Karten Tobias Schilling

We present a new method for whole slide darkfield imaging. Whole Slide Imaging (WSI), also sometimes called virtual slide or virtual microscopy technology, produces images that simultaneously provide high resolution and a wide field of observation that can encompass the entire section, extending far beyond any single field of view. For example, a brain slice can be imaged so that both overall m...

Journal: :ACS applied materials & interfaces 2013
Jeremiah W Hubbard François Orange Maxime J-F Guinel Andrew J Guenthner Joseph M Mabry Christopher M Sahagun Carlos Rinaldi

We report on the control of cyclotrimerization forming a polycyanurate polymer using magnetic iron oxide nanoparticles in an alternating-current (ac) field as an internal heat source, starting from a commercially available monomer. Magnetic nanoparticles were dispersed in the monomer and catalytic system using sonication, and the mixture was subjected to an alternating magnetic field, causing t...

Journal: :Materials and Structures 2022

Abstract The performances of expanded clay aggregate and wood ash as internal curing water reservoirs were studied in the mortar phase a hypothetical high performance concrete with low water-to-binder ratio. two materials substituted 15 30% sand volume. Two different binders, Portland cement high-volume fly blended cement, used. compressive strength volume stability mortars sealed air-drying co...

2012
Igor De la Varga Javier Castro Dale Bentz Jason Weiss

This paper focuses on testing performed onmixtures that would be consistent with themortar portion of a concrete bridge deck mixture for many state departments of transportation. In this work a relatively large percentage of cement (40%, 60%, or 80% by volume) is replaced with Class C fly ash. To overcome concerns associated with slow set and early-age strength development that are often expres...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد علوم دارویی - دانشکده داروسازی 1393

خلاصه فارسی: به علت وجود مشکلات استفاده از داروهایی با نیمه عمر کوتاه که نیازمند تجویز چند دوز در طی یک روز می باشند، مانند فراموش کردن دریافت دوز دارو و ثابت نبودن سطح خونی و... ضرورت ساخت اشکال modified release واضح و مبرهن است. از میان راه های مختلف دارورسانی به بدن، راه خوراکی به علت مزایای ویژه خود همچنان از جایگاه مهمی در داروسازی برخوردار می باشد. اشکال دارویی متنوعی نیز این امکان را فر...

Journal: :Construction and Building Materials 2021

This review collates findings from more than 100 scientific publications regarding the performance of several waste-based porous materials (WASPORs) as water reservoirs for internal curing concrete. Results obtained by using recycled concrete aggregates, crushed ceramics, coal bottom ash, artificial different powder and fibres were included. The influence these WASPORs on consistence, hydration...

2008
Seongcheol Choi Moon Won

15. Supplementary Notes Project performed in cooperation with the Texas Department of Transportation and the Federal Highway Administration. 16. Abstract Curing has substantial effects on the long-term performance of Portland cement concrete (PCC) pavement. TxDOT requires two applications of curing compounds, with a maximum 180 sf/gal per each application. However, no compliance testing is cond...

Journal: :The journal of contemporary dental practice 2008
Bora Bagis Yildirim Bagis Ertan Ertas Seda Ustaomer

AIM The aim of this study was to evaluate the heat generation of three different types of light curing units. METHODS AND MATERIALS Temperature increases were recorded from a distance of 1 mm from a thermocouple to the tip of three different types of light curing units including one quartz-tungsten halogen (QTH), one plasma arc (PAC), and one light emitting diode (LED) unit. An experimental m...

Journal: :Dental materials journal 2007
Nicoleta Ilie Ester Jelen Tatiana Clementino-Luedemann Reinhard Hickel

In modern research, development of monomers that reduce shrinkage of composite materials remains an ongoing quest and perennial challenge. The purpose of this study, therefore, was to analyze the shrinkage behaviour of an innovative composite material for dental restorations based on a monomer with a new chemical formulation, known as silorane. To this end, shrinkage stress development during c...

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