A J o c U o t I A y d Manufacturing Company, Jordan, completed his PhD in surface chem Matthew F. Paige at the Univers Ala’a has received an NSERC CR postdoctoral research at Dalhousie Department of Chemistry, Dalhousie Univer Halifax, Nova Scotia B3H 4R2, Canad +1 902-494-4245 Department of Physics, Dalhousie University E-mail: [email protected]; Fax: +1 902-494-51 Cite this: J. Mater. Chem. A, ...

The present study illustrates the efficiency of microalgae based treatment system. Treatment of wastewater with Microalgae based system have the ability to remove nutrients (Nitrogen, Phosphorus and other nutrients), heavy metals, toxic substances (both organic and inorganic), BOD, COD and other impurities present in the wastewater by using the sunlight, CO2, and impurities like nutrients prese...

In this report we focus on Jacobi like resolution of the eigen-problem for a real symmetric matrix from a parallel performance point of view: we try to optimize the algorithm working on the communication intensive part of the code. We discuss several parallel implementations and propose an implementation which overlaps the communications by the computations to reach a better eeciency. We show t...

Many societal challenges at the beginning of the 21st century lead to an apparent and growing need for functional materials and novel ways of materials synthesis and assembly. Rising to the challenge, the utilization of small, self-assembling building blocks for the bottom-up construction of new types of polymers and nanostructures has enjoyed increasing popularity among materials researchers i...

Graphene nanoribbons (GNRs) have received a great deal of attention due to their promise for electronic and optoelectronic applications. Several recent studies have focused on the synthesis of GNRs by the bottom-up approaches that could yield very narrow GNRs with atomically precise edges. One type of GNRs that has received a considerable attention is the chevron-like GNR with a very distinct p...

Consider the (n +1) x (n + 1) Vandermonde-like matrix P = [p,--i(o/-i)L where the polynomials po(x),... ,pn(x) satisfy a three-term recurrence relation. We develop algorithms for solving the primal and dual systems, Px = b and Pa =f respectively, in O(n) arithmetic operations and O(n) elements of storage. These algorithms generalize those of Bjorck & Pereyra which apply to the monomial case Pi(...

In this paper we extend our previously discovered exact solution for an SU(2) gauge theory coupled to a massless, non-interacting scalar field, to the general group SU(N+1). Using the first-order formalism of Bogomolny, an exact, spherically symmetric solution for the gauge and scalar fields is found. This solution is similiar to the Schwarzschild solution of general relativity, in that the gau...

Over the 20-year life of the Society for Conservation Biology (SCB) huge strides in biological understanding have been made. Michael Soulé, one of SCB’s founders, recently noted that prior to the mid-1980s “there was virtually no awareness of edge effects, fragmentation effects, ecological sinks, extinction vortices, inbreeding effects in natural populations, habitat destruction in the seas, en...

A quantum field described by the field operator ∆a = ∆+aδΣ involving a δ-like potential is considered. Mathematically, the treatment of the δ-potential is based on the theory of self-adjoint extension of the unperturbed operator ∆. We give the general expressions for the resolvent and the heat kernel of the perturbed operator ∆a. The main attention is payed to d = 2 δ-potential though d = 1 and...

Jedes Jahr müssen tausende defekte Herzklappen ersetzt werden. Die Verwendung von biologischen oder mechanischen Prothesen macht aufgrund der Tatsache, dass diese nicht mitwachsen, gerade bei Heranwachsenden regelmäßige Reimplantationen erforderlich. Eine mögliche Alternative sind Klappenprothesen bestehend aus einer Gerüststruktur, welche mit körpereigenen Zellen besiedelt wird. Das Gerüst wir...