نتایج جستجو برای: preheating temperature

تعداد نتایج: 453858  

2015
Heba A. El-Deeb Sara Abd El-Aziz Enas H. Mobarak

The effect of preheating of the silorane-based resin composite on intrapulpal temperature (IPT) and dentin microtensile bond strength (μTBS) was evaluated. For the IPT, teeth (n = 15) were sectioned to obtain discs of 0.5 mm thickness (2 discs/tooth). The discs were divided into three groups (n = 10/group) according to the temperature of the Filtek LS™ silorane-based resin composite during its ...

2003
T. J. Ponman A. J. R. Sanderson

We examine profiles and scaling properties of the entropy of the intergalactic gas in a sample of 66 virialized systems, ranging in mass from single elliptical galaxies to rich clusters, for which we have resolved X-ray temperature profiles. Some of the properties we derive appear to be inconsistent with any of the models put forward to explain the breaking of self-similarity in the baryon cont...

Abstract: In this study, Exergy and energy analysis of processes of the steel production in Bouyersanat steel industry that contains three stages, melting in induction furnace, preheating and continuous casting is carried out. After doing exergy and energy balance of three stages separately, amount of energy transferred with different way and their shares, exergy losses for each stage and their...

Marashi, P., Ranjbarnodeh, E., Hamdollahzadeh, A., Talebi Hanzaei, A.,

In this study, first,diffusible hydrogen of cellulosic electrode E8010-P1 and low hydrogen electrode E8018-G was measured by mercury displacement method according to ISO3690. Then,the effect of preheating and post-heating on the sensitivity to hydrogen inducedcold cracking in welding of 18mm API5L X70 steel with these electrodes was investigated according to ISO17642-2. The results of visual in...

Journal: : 2022

The base plate temperature ranks among the crucial building parameters whose effect on melt pool dimensions and porosity defects generation has not been sufficiently discussed in literature. In current study, with aim to explore dependence between dimensions, preheating, a 3-dimensional thermal finite element model is carried out create IN718 single beads, at various temperatures. of behave fav...

1999
Bruce A. Bassett Roy Maartens David I. Kaiser

The relative growth of field and metric perturbations during preheating is sensitive to initial conditions set in the preceding inflationary phase. Recent work suggests this may protect super-Hubble metric perturbations from resonant amplification during preheating. We show that this possibility is fragile and sensitive to the specific form of the interactions between the inflaton and other fie...

Journal: :Biological & pharmaceutical bulletin 2003
Kayoko Takagi Reiko Teshima Haruyo Okunuki Jun-ichi Sawada

Information on the comparative digestibility of food allergens and non-allergenic proteins is crucial when stability to digestion is to be used as a criterion to assess the allergenic potential of novel proteins. Preheating effect on in vitro digestibility has not been fully examined. In this study we investigated the preheating effect of in vitro digestibility of several proteins and their pro...

2003
Bruce Bassett

The dynamics of preheating after inflation has not been clearly understood yet.In particular, the issue of the generation of metric perturbations during preheating on super-horizon scale is still unsettled. Large scale perturbations may leave an imprint on the cosmic microwave background, or may become seeds for generation of primordial black holes. Hence, in order to make a connection between ...

2017
Min Zheng Geon Choe Kenneth E. Johnson Lan Gao Sy-Hwang Liou

The effects of seedlayer (SL) and preheating on the crystallographic, magnetic, and recording properties of CoCr18Pt16B4 granular perpendicular magnetic media have been investigated. For the media with Ru as underlayer, although higher preheating improves both coercivity and squareness, the media is much noisier. With introducing Ta SL, Ru (0002)/Co (0002) crystallography is greatly enhanced. H...

1998
Edward W. Kolb Antonio Riotto Igor I. Tkachev

We perform a fully non-linear calculation of the production of supermassive Grand Unified Theory (GUT) X bosons during preheating, taking into account the fact that they are unstable with a decay width Γ X. We show that parametric resonance does not develop if Γ X is larger than about 10 −2 m X. We compute the nonthermal number density of superheavy bosons produced in the preheating phase and d...

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