A comprehensive mathematical model based on the discrete particle model and computational fluid dynamics was utilized to investigate mixing and segregation of particles in fluidized beds at high pressure. To quantify the extent of mixing in the bed, the Lacey mixing index was used. Simulations were carried out with different mass fractions of small particles at various pressures ranging from 1 ...

H(⊗1 C+) denotes the Hardy space of square integrable functions analytic in each variable separately. Let P be the natural projection of L(⊗1 C+) onto H(⊗1 C+). A Hankel operator with symbol b is the linear operator from H(⊗1 C+) to H(⊗1 C+) given by Hbφ = Pbφ. We show that ‖Hb‖ ≃ ‖Pb‖BMO(⊗n 1 C+), where the right hand norm is S.-Y. Chang and R. Fefferman product BMO. This fact has well known e...

where ν is the outward unit normal vector on ∂Ω; ν exists a.e. for Lipschitz domains. The goal of this paper is to understand the asymptotic behavior of Λ(γ) as γ → ∞ when ∂Ω ∈ C1. Since Λ(γ) → ∞ when γ → ∞, (2) can be viewed as a singularly perturbed linear eigenvalue problem. The asymptotic behavior of Λ(γ) was first studied by Lacey, Ockendon and Sabina in [3], where they investigated some r...

Abstract. For any dynamical system, we show that higher variation-norms for the sequence of ergodic bilinear averages of two functions satisfy a large range of bilinear Lp estimates. It follows that, with probability one, the number of fluctuations along this sequence may grow at most polynomially with respect to (the growth of) the underlying scale. These results strengthen previous works of L...

The authors prove L bounds in the range 1 < p < ∞ for a maximal dyadic sum operator on R. This maximal operator provides a discrete multidimensional model of Carleson’s operator. Its boundedness is obtained by a simple twist of the proof of Carleson’s theorem given by Lacey and Thiele [6] adapted in higher dimensions [8]. In dimension one, the L boundedness of this maximal dyadic sum implies in...

Photonic integrated circuits (PIC) find applications in the fields of microwaves, telecoms and sensing. Generally, PICs are fabricated on a base isotropic materials such as SOI, Si3N4, etc. However, for some applications, anisotropic substrates LiNbO3 used. A thin film an insulator (LNOI) is promising material platform complex high-speed PICs. The design simulation should be performed using rig...

1 I have little to contribute directly to ethical reflection that specifically deals with risks that might be occasioned by innovations of nanotechnology (Schummer, 2007; Shelley, 2006), and with how to promote responsible conduct and public trust in the face of them (Weil, 2006). Instead, I will introduce a general ethical stance towards technoscientific research and innovations, one that I ha...

To cite this Article Lacey, Lawrence A., Headrick, Heather L., Horton, David R. and Schreiber, Alan(2010) 'Effect of a granulovirus on mortality and dispersal of potato tuber worm (Lepidoptera: Gelechiidae) in refrigerated storage warehouse conditions', Biocontrol Science and Technology, 20: 4, 437 — 447 To link to this Article: DOI: 10.1080/09583150903522125 URL: http://dx.doi.org/10.1080/0958...

Bulimia nervosa appears to be a significant medical condition and a serious social problem since it requires long term and multi-dimensional treatment, and its incidence rates among young generation (predominantly women), has incresed significantly in recent years. The results of scientific research described in psychological and psychiatric literature point to a variety of factors that contrib...