With the aim of reducing human exposure to Bisphenol A (BPA) derivatives in dentistry, a fluorinated dimethacrylate monomer was synthesized to replace 2,2-bis[4-(2-hydroxy-3-methacryloy-loxypropyl)-phenyl]propane (Bis-GMA) as the base monomer of dental resin. After mixing with reactive diluent triethyleneglycol dimethacrylate (TEGDMA), fluorinated dimethacrylate (FDMA)/TEGDMA was prepared and c...

Using biocomposites containing wheat straw (WS) and synthetic polymers like polyethylene (PE) has gained tremendous popularity, but its application in the packaging industry is not substantial. Due to the prevalence of raw WS color which manifests itself in the WS/LDPE biocomposite, the present investigation is dedicated to fabricate a bleached WS/LDPE composite. Thus, raw WS and the pulp of WS...

ABSTRACT An analysis of the Large Magellanic Cloud (LMC) WC4 star BAT99-9 (HD 32125, FD 4, Brey 7, WS 3) shows that still contains photospheric nitrogen. Three N emission features (N v ??1238, 1242, iv ?1719, and ??3479–3485) are unambiguously identified in spectrum. cmfgen models yield an N/C ratio 0.004 ± 0.002 (by number) a C/He $0.15_{-0.05}^{+0.10}$. Due to similarity other stars, good fit...

2 1. Introduction Williams syndrome [WS] is a genetic disorder associated with learning difficulties, with an incidence of 1 in 25,000 (Greenberg, 1990). It is caused by a microdeletion on the long arm of chromosome 7 at 7q11.23, which affects one allele of the elastin gene and other contiguous genes (Ewart et al. Frangiskakis et al., 1996). Within cognitive skills, there is a spatial disorder,...

Supercritical carbon dioxide has gained increasing attention in food and pharmaceutical processing owing to the fact that it is environmentally inexpensive, not flammable, essentially non-toxic, and it has a convenient critical point. Also, it has been attracting much attention in many fields, such as extraction of sensitive materials and pharmaceutical processing and polymerization processes. ...

This paper investigates the k-mixing property of a multidimensional cellular automaton. Suppose F is a cellular automaton with the local rule f defined on a d-dimensional convex hull C which is generated by an apex set C. Then F is k-mixing with respect to the uniform Bernoulli measure for all positive integer k if f is a permutation at some apex in C. An algorithm called the Mixing Algorithm i...

Application of cavity ring down (CRD) spectrometry for measuring the optical properties of pure and mixed laboratory-generated aerosols is presented. The extinction coefficient (α ext), extinction cross section (σ ext) and extinction efficiency (Q ext) were measured for polystyrene spheres (PSS), ammonium sulphate ((NH 4) 2 (SO 4)), sodium 5 chloride (NaCl), glutaric acid (GA), and Rhodamine-59...

In this paper, a model is proposed for the kernel in the generalized mixing rule recently formulated by Anderssen and Mead (1998). In order to derive such a model, it is necessary to take account of the rheological significance of the kernel in terms of the relaxation behaviour of the individual polymers involved. This leads naturally to consider a way how additional physical effects, which dep...

In this paper we study mixing properties of one-dimensional linear cellular automata over the ring Zm, a particular class of dynamical systems, determined by right (left) permutative local rule F with respect to the uniform Markov measure induced by doubly stochastic matrix P = p(i,j) and the probability vector π. We prove that one-dimensional linear cellular automata associated to right (resp....