Ferromagnetic iron oxide nanoparticles of about 33nm in diameter were synthesized by hightemperature decomposition of an iron–oleate complex, using octadecene as the solvent. These particles were subsequently coated with polyN-isopropylacrylamide (pNIPAAm) by a surfactant exchange method. Temperature-sensitive behavior of these particles was studied using ac susceptibility and dynamic light sca...

DNA templated nanowires of a pentynyl-modified poly2-(2-thienyl)-pyrrole undergo functionalisation via"click chemistry" and retain their 1D-nanostructure and conductive properties.

We give a precise average-case analysis of a complete polynomial factorization chain over nite elds by methods based on generating functions and singularity analysis. Polyn^ omes al eatoires et factorisation de polyn^ omes R esum e Nous donnons une analyse en moyenne pr ecise d'une cha^ ne compl ete de factorisation de polyn^ omes sur les corps nis par des m ethodes fond ees sur les fonctions g...

This paper presents a method based on the simplex algorithm to evaluate real or complex polynomials, having scalar or interval coeecients. The aim of this method is not to nd exactly the set P(X) where P is a polynomial and X a real interval or a complex disk but to obtain a set which surely contains P(X). Evaluation de polyn^ omes avec l'agorithme du Simplexe. R esum e : Nous pr esentons ici u...

This paper gives a new and eecient algorithm in order to compute some characteristic polynomials using Cauchy modules. This algorithm is used for the computation of absolute resolvents and multi-resolvents which are essential tools in constructive Galois theory. formation de facteurs parasites, le polyn^ ome caract eristique d'un endomorphisme multi-plicatif associ e a un invariant quelconque d...

Tanaka’s approach to swelling kinetics of a solid gel sphere is extended to a sphericalmicrogel shell. The boundary condition at the inner surface is obtained from the minimization of shear elastic energy. Temporal evolution of a shell is represented in a form of expansion over eigenfunctions of the corresponding diffusion equation. The swelling of Tanaka’s solid spherical gel is recovered as a...

Programming mechanisms in floating-gate non-volatile (EEPROM) standard-CMOS memories are briefly reviewed. A methodology to optimize the programming time in poly1-poly2 Fowler-Nordheim based structures is proposed. From design constraints, the optimum number of bumps and bootstrap capacitance value are obtained to maximize the programming speed for a given programming voltage.

The natural projection from the moduli space of polynomials of degree n is not surjective if n ≥ 4. We give explicit parametric representation of the exceptional set when n = 4 and 5. And we describe degeneration which occurs above the exceptional set when n = 4. Also we show that the preimage of a point generally consists of (n − 2)! points, where (n − 2)! is the maximum when the preimage is a...