نتایج جستجو برای: surface conditioning

تعداد نتایج: 680069  

2010
Antoine Bertoncello Gregoire Mariethoz Tao Sun

Hybrid geostatistical models imitate a sequence of depositional events in time. By considering sedimentation processes, these algorithms produce highly realistic subsurface structures from a variety of environments. However, since depositional events are forward-modeled, they cannot be directly conditioned to data. Therefore, conditioning requires solving a possibly expensive inverse problem. I...

2007
J. D. Williams C. C. Farnell

Data are presented on cathode temperature profiles, electron emission profiles under no-flow conditions, and timed starting tests with gas flow. Correlations between the temporal behavior of the noflow emission current and the starting time are made, and a model is presented of the barium/bariumoxide generation and surface diffusion processes that describe the electron emission profile and star...

2009
Antonio Brú Juan-Carlos Souto Sonia Alcolea Rosa Antón Angel Remacha Mercedes Camacho Marta Soler Isabel Brú Amelia Porres Luis Vila

There is evidence that polymorphonuclear neutrophils (PMNs) can exert severe antineoplastic effects. Cross-talk between tumour cells and endothelial cells (ECs) is necessary for the accumulation of PMN around a tumour. This work reports the ability of two PMN-sensitive, human, permanent cell lines-colorectal adenocarcinoma (HT-29) and pharyngeal squamous-cell carcinoma (FaDu) cells-to act as in...

2013
Sonya M Bierbower Zhanna P Shuranova Kert Viele Robin L Cooper

In classical conditioning, an alteration in response occurs when two stimuli are regularly paired in close succession. An area of particular research interest is classical conditioning with a chemical signal and visual and/or tactile stimuli as the unconditional stimuli, to test manipulative and motor behaviors in a learning paradigm. A classical learning task chamber was developed to examine l...

2011
Stephen P. Beeby Michael J. Tudor Nick R. Harris

This paper reports a self powered smart sensor node (also called ‘smart tag’) consisting of a piezoelectric vibration energy harvester, a power conditioning circuit, sensors and an RF transmitter. The smart tag has dimensions similar to a credit card and can be easily integrated into various applications such as the ibration energy harvesting iezoelectric generator elf-powered ireless sensor no...

Journal: :Pediatric dentistry 1995
T V Vijayaraghavan J Y Hsiao S J Moss

Moisture contamination is a major factor in sealant application, often determining clinical success or failure. A new enamel conditioner using HNO3 (2.5%) has been introduced that does not require a water rinse after etching. The aim of this study is to compare etching characteristics using sealant retention from shear bond strength tests for traditional etch conditioning using H3PO4 (37%) and ...

بحرالعلومی, زهرا, شاکر, اکرم, فتوحی, فائزه,

Introduction: Fissure sealant is the most effective method to prevent occlusal surface caries of posterior teeth . In recent years, the use of laser for enamel surface pretreatment has been considered as an effective method before applying fissure sealant. Hence, the aim of this study was to investigate the effect of Er:YAG laser conditioning on fissure sealant microleakage. Methods: In this ...

سحرخیزان, مهدی, فکرآزاد, رضا, رضایی صوفی, لقمان , وحدتی نیا, فرشید , کسرایی, شاهین,

Introduction & Objective: The clinical success of sealant therapy depends on its ability to pro-vide a marginal integrity resulting in micro leakage absence. The aim of this study was to evaluate the effect of enamel surface treatment using Er.Cr:YSSG and applying bandings with current clinical method on a fissure sealant microleakage. Material & Methods: In this experimental study 60 human p...

Abbas Haghparast, Farzaneh Sabouni, Mahnaz Rahimpour Manizheh Karami, Mohammad Reza Jalali Sara Karimi

Objective(s) Single injection of naloxone, a selective antagonist of morphine, prior to the drug conditioning testing was used to investigate on morphine dependence. Materials and Methods Conditioning to morphine (2.5-10 mg/kg, s.c.) was established in adult male Wistar rats (weighing 200-250 g) using an unbiased procedure. Nitric oxide agents were microinjected into the central amygdala pri...

Manizheh Karami Mohammad Reza Zarrindast

This research was designed to study sexual differences in place conditioning induced by morphine in offspring born of female Wistar rats mated with drug-naïve males. Mothers were exposed to morphine during the 14th-16th days of gestational. Control dams were simply saline-injected. Female and male virgin offspring born of morphine-treated or saline-treated mothers were separately housed until b...

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