نتایج جستجو برای: electron stopper layer
تعداد نتایج: 569979 فیلتر نتایج به سال:
background: hydatid cysts are encountered frequently in regions endemic with livestock. the basic treatment for a hydatid cyst is total surgical removal of the cyst and its inner contents. hypertonic nacl or diluted betadine solution are used as germicidal agents for most hydatid surgeries. however, the germicidal efficacy of the ankaferd blood stopper® (abs) has not been investigated. thus, we...
Intravitreal injection of drugs that inhibit the actions of vascular endothelial growth factor bring high economic burden for the health systems. We evaluated the amount of drug volume retained in two different types of syringes with billed and non billed rubber stopper. Difference between two syringe types is 0.037 g. This indicates a significant amount of volume loss due to dead space between...
We describe the design and testing of a neural network for chemical process prediction and its use for process optimization. Our objective is to design an improved, robust, accurate, and adaptive model for Resin Melt Index prediction, leading to a better prediction of addition of chain stopper during polymerization. We synthesize a neural network to predict the melt index and optimize the chain...
background: the purpose of this study was to compare the effi cacy of endovac irrigation system and side-vented closed ended needle (max-i probe) in removing smear layer from root canals at 1 mm and 3 mm from working length using protaper rotary instrumentation. materials and methods: a total of 50 freshly extracted maxillary central incisors were randomly divided into two groups after complete...
In this study, using biodegradable polymers, nanofiberouse scaffolds were fabricated from the layer-by-layer electrospinning method, including two layer that poly (ε-caprolactone), polyvinylpyrrolidone deposited at first layer and poly (ε-caprolactone), polyvinyl alcohol , β-tricalcium phosphate at latter. After prepration of scaffolds, scanning electron microscopy (SEM), swelling, porosity, me...
the effects of including incoherent (bound-electron) and coherent (rayleigh) scattering in exposure buildup factor calculations for point isotropic gamma ray sources, penetrating a two-layer water-lead shield have been investigated in the gamma ray energy (e?) range of 40 kev to 3 mev. incoherent scattering decreases the values of these factors in both layers up to e? ~ 200 kev and the effect i...
In this paper, radiation effects in protection layers of logical cell of the digital gate in the FPGA for electron and proton rays was simulated Using the FLUKA Code. by using of the Monte Carlo simulation, the electron and proton transport into the logical cell of the digital gate in the FPGA will be studied. In this simulation, the maximum energy of the electrons and protons at the entrance o...
Multi-gate MOSFETs has shown better results in subthreshold performances. The replacement of SiO2 by high-k dielectric can fulfill the requirements of Multi-gate MOSFETS with scaling trend in device dimensions. The advancement in fabrication technology has also boosted the use of different high K dielectric materials as oxide layer at different places in MOSFET structures. One of the most impor...
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