In this paper, an efficient shrinkage estimation procedure for the partially linear varying coefficient model (PLVC) with random effect is considered. By selecting the significant variable and estimating the nonzero coefficient, the model structure specification is accomplished by introducing a novel penalized estimating equation. Under some mild conditions, the asymptotic properties for the pr...

Injection molding process is one of the most important methods of forming in the plastics manufacturing industry. Shrinkage and out of roundness are phenomenons that affect the final product quality. In this study, the effect of the thickness of cylindrical parts from polypropylene material on shrinkage and out of roundness has been investigated. For this purpose, injection molding process is s...

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 ...

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...

Thermal–mechanical behavior of the solidifying shell is important for design of taper and understanding crack formation and other defects during continuous casting of steel. A transient finite-element model, CON2D, has been developed to simulate the evolution of temperature, stress and strain in the solidifying shell during this process. The model features unified elasticviscoplastic constituti...

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...

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...

Context Heating of meat leads to structural changes reflected in the juiciness and tenderness cooked meat. Aims This study aimed characterise effect prolonged ageing cooking on pork-quality traits. Methods Longissimus lumborum samples from 12 carcasses were aged 3 days (conventional ageing) or 15 (prolonged pork cuboids at 50–80°C for 30 min. Cooking loss, total water content (TWC), Warner–Brat...

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...

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...