نتایج جستجو برای: plastic shrinkage

تعداد نتایج: 67898  

2012
Gabriel Huerta

Bayesian wavelet shrinkage methods are defined through a prior distribution on the space of wavelet coefficients after a Discrete Wavelet Transformation has been applied to the data. Posterior summaries of the wavelet coefficients establish a Bayes shrinkage rule. After the Bayes shrinkage is performed, an Inverse Discrete Wavelet Transformation can be used to recover the signal that generated ...

2007
Werner Vach

In a recent paper van Houwelingen and le Cessie (1990) consider the shrinkage eeect as well as a shrinkage method. We investigate the shrinkage eeect in more detail and show that the proposed shrinkage method is tailored to remove the shrinkage eeect. This appears to be not a good advice to improve predictors. However, it can be useful in predicting the future behaviour of risk groups deened by...

Journal: :European journal of oral sciences 2014
Tobias T Tauböck Albert J Feilzer Wolfgang Buchalla Cornelis J Kleverlaan Ivo Krejci Thomas Attin

This study investigated the influence of modulated photo-activation on axial polymerization shrinkage, shrinkage force, and hardening of light- and dual-curing resin-based composites. Three light-curing resin composites (SDR bulk-fill, Esthet X flow, and Esthet X HD) and one dual-curing material (Rebilda DC) were subjected to different irradiation protocols with identical energy density (27 J c...

Journal: :Brazilian oral research 2017
Carlos José Soares André Luis Faria-E-Silva Monise de Paula Rodrigues Andomar Bruno Fernandes Vilela Carmem Silvia Pfeifer Daranee Tantbirojn Antheunis Versluis

Polymerization shrinkage stress of resin-based materials have been related to several unwanted clinical consequences, such as enamel crack propagation, cusp deflection, marginal and internal gaps, and decreased bond strength. Despite the absence of strong evidence relating polymerization shrinkage to secondary caries or fracture of posterior teeth, shrinkage stress has been associated with post...

Cement substitution in self compacting concrete (SCC) is emphasized to conserve environment, reduce cost and utilize waste materials. This paper focuses on comparing the permeability and drying shrinkage of SCC containing Wollastonite micro fiber (WMF), a cheap pozzolanic fiber with respect to flyash. Microsilica was added for providing required viscosity to maintain homogeneity of the mixes. T...

Journal: :Civilla 2022

Soil is a very important element in the success of development project and part foundation used. Therefore, stable soil needed to obtain required bearing capacity. Such as clay has characteristics low capacity large shrinkage. This study aims determine increase value shear strength with stabilization PET plastic waste. The purpose this see variations amount waste 0%, 3.5%, 4%, 4.5%. Method used...

Jamal Ahmadi Reza Naghdi2

Recent tendencies in concrete technology have been towards to high- performance concrete with a low water-cement ratio. However, high performance concretes have some problems. One of the problems is early-age cracking due to autogenous shrinkage. This study presents the results of an experimental investigation carried out to evaluate the autogenous shrinkage of high-strength concrete. Accordi...

Journal: :international journal of civil engineering 0
mostafa khanzadi tehran, narmak, iust, civil engineering dept. seyed mehdi tavakkoli iran university of science and technology

an evolutionary structural optimization (eso) method is used for plastic design of frames. based on safe theorems some criteria are derived and made an effort to satisfy them during the optimization process. in this regard, equilibrium is checked and yield condition is gradually satisfied during the optimization process. in this method, the amount of used material and the stiffness for each ele...

Journal: :Kansas Agricultural Experiment Station Research Reports 1972

Journal: :Bulletin of the Chemical Society of Nigeria 2023

In order to assess the plastic and thermal behaviour of clay mineral deposits at Uhonmora, Edo State, Nigeria, chemical, mineralogical physical properties were evaluated. The results study showed that consisted phyllosilicate minerals such as kaolinite, illite clinochlore; other present quartz, sanidine high, geonalite, diaspore lepidocrocite. exhibited moderate swelling characteristics medium ...

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