Messanae Universitas Studiorum: No conditions. Results ordered -Date Deposited. 2018-01-17T14:58:00ZEPrintshttp://cab.unime.it/images/sitelogo.pnghttp://cab.unime.it/mus/2012-09-21T08:59:29Z2012-09-21T08:59:29Zhttp://cab.unime.it/mus/id/eprint/760This item is in the repository with the URL: http://cab.unime.it/mus/id/eprint/7602012-09-21T08:59:29ZSolubility equilibria for ma type salts: correlation between the $A^-$ basicity,the salt solubility and the approximate graphic resultsM. FioreS. OrecchioR. Zingales2012-09-21T08:55:35Z2012-09-21T08:55:35Zhttp://cab.unime.it/mus/id/eprint/758This item is in the repository with the URL: http://cab.unime.it/mus/id/eprint/7582012-09-21T08:55:35ZGraphic representation of equlibria involving dichromates. Solubility equilibriaM. FioreS. OrecchioR. Zingales2012-09-21T08:52:29Z2012-09-21T08:52:29Zhttp://cab.unime.it/mus/id/eprint/756This item is in the repository with the URL: http://cab.unime.it/mus/id/eprint/7562012-09-21T08:52:29ZGraphic representation of equilibria involving dichromates. Acid-base equlibriaM. FioreS. OrecchioR. Zingales2012-09-21T08:48:01Z2013-04-03T09:55:12Zhttp://cab.unime.it/mus/id/eprint/755This item is in the repository with the URL: http://cab.unime.it/mus/id/eprint/7552012-09-21T08:48:01ZProgram motitcur for modeling ph-titration curve of metal ion ligand A - ligand B systemMOTITCUR program modeling pH-titration curve for system: metal ion ligand A — ligand B has been presented. It allows to evaluate pH-titration curve of the studied system in a definite pH range using the assumed values of equilibrium constants of complexes present in solution and total concentrations of metal ion, ligand A and ligand B. The program also calculates equilibrium concentration of metal ion, ligand A and ligand B and procentage distribution of each metal complex species for every point of titration curve. Output data can be transferred to any graphic program to plot titration curve and procentage distribution diagram vs. pH.
Elzbieta Lodyga ChruscinskaLongin Chruscinski2012-09-21T08:35:53Z2013-04-02T08:20:10Zhttp://cab.unime.it/mus/id/eprint/753This item is in the repository with the URL: http://cab.unime.it/mus/id/eprint/7532012-09-21T08:35:53ZComposizione mineralogica e chimica di una mineralizzazione a prevalente pirite, affiorante in contrada croce, presso Fiumedinisi (Messina)A mineralization outcropping in C.da Croce locality (Fiumedinisi area), and mainly consisting of pyrite, has been investigated.
The studied samples belong to the “Mandanici Unit”, which is a low grade metamorphic unit of the northern Peloritan complex.
Results of microscopical investigations revealed a mineral association mainly consisting of quartz, pyrite, magnetite, ilmenite and chalcopyrite.
Both pyrite and quartz show two generations. Quartz has been observed in some fractures.
Chemical investigations revelead 46.41% Fe medium content for pyrite. No significant differences exist between the two pyrite generations.
As regards trace elements, the Co/Ni ratio in pyrite of almost 2 suggests a deposition due to a hydrothermal activity.
Carmelo SaccàDomenica Saccà2012-09-21T08:23:08Z2013-01-22T08:56:44Zhttp://cab.unime.it/mus/id/eprint/750This item is in the repository with the URL: http://cab.unime.it/mus/id/eprint/7502012-09-21T08:23:08Z$CR$ submanifolds with parallel mean curvature vector of a complex space form We study $CR$ submanifolds with nonvanishing parallel mean curvature vector immersed in a complex space form and compute the restricted Laplacian for the second fundamental form in the direction of the mean curvature vector under the additional condition on the second fundamental form and the $f$-structure in the tangent bundie. As an application, we prove a theorem for a $CR$ submanifold with nonpositive sectional curvature. U.H. KiMasahiro Kon2012-09-21T08:15:39Z2013-04-02T08:46:40Zhttp://cab.unime.it/mus/id/eprint/747This item is in the repository with the URL: http://cab.unime.it/mus/id/eprint/7472012-09-21T08:15:39ZIntegrable derivations IIWe establish some theorems of strong integrability for derivations of a $k$-algebra $A$ of characteristic $p > O$. After having formally generalized Lipman’s theorem in characteristic $O$, by using differentiations instead of derivations, we extend Lipman’s theorem to rings of characteristic $p > O$, under conditions concerning $A$ ($A$ regular local) and the derivations of $A$. If $A$ is a field, we study the connection between the separability of $A$ over $k$ and the strong integrability of derivations of $A$. Gaetana RestucciaH. Matsumura2012-09-21T08:08:03Z2013-01-22T09:06:07Zhttp://cab.unime.it/mus/id/eprint/745This item is in the repository with the URL: http://cab.unime.it/mus/id/eprint/7452012-09-21T08:08:03ZSpline-wavelet decomposition for image processingSpline-wavelet decomposition is a very useful tool for analyzing the information content of images. In this work we will show how it can be used to extract details from a digitilized image. Spline-wavelet decomposition consist in considering approximations of an image at levels of resolutions which are more and more decreasing: the difference between two successive approximations, which stay to two different levels, is the wavelet component at the lowest level, Non-orthogonal spline-wavelets have been used. Damiana Lazzaro2012-09-21T08:01:02Z2013-01-22T08:23:56Zhttp://cab.unime.it/mus/id/eprint/743This item is in the repository with the URL: http://cab.unime.it/mus/id/eprint/7432012-09-21T08:01:02ZEquilibrio di un insieme di particelle impenetrabili su una sfera: un problema di geometria statisticaVengono presentati alcuni risultati di uno studio di simulazione numerica, condotto con tecniche di campionamento Monte Carlo, di un sistema modello di particelle impenetrabili vincolate alla superficie di una sfera. La dinamica della transizione di ordinamento che il modello esibisce ad alte densità viene discussa alla luce di considerazioni di carattere geometrico. Paolo Vittorio GiaquintaS. Prestipino Giarritta2012-09-21T07:40:03Z2012-09-21T07:40:03Zhttp://cab.unime.it/mus/id/eprint/735This item is in the repository with the URL: http://cab.unime.it/mus/id/eprint/7352012-09-21T07:40:03ZIntegrable derivations in rings of characteristic $p>0$We study the strong integrability of a $\kappa-$algebra $_A$ separable over $\kappa$ where $\kappa$ is a field of characteristic $p> O$.
If $-A$ is a field, we state necessary and sufficiet conditions so that a finite number of derivations of $_A$ be strongly integrable.
If $_A$ is a local $k$-algebra, one proves the strong integrability of a derivation $_D$ of $_A$ with $D^p = O$ and such that $_D(x) \ \in U(A)$, for some $x \in A, U(A) =units$ of $A$. Finally, we give some positive results in the case of $D(x) \not\in U(A)$, for every $x \in A$.
V. Bonazinga2012-09-21T07:12:43Z2013-01-22T11:33:17Zhttp://cab.unime.it/mus/id/eprint/732This item is in the repository with the URL: http://cab.unime.it/mus/id/eprint/7322012-09-21T07:12:43ZAlgebres symetrique et de rees d'un moduleWe study the torsion freeness of the symmetric powers of a module via the Koszul complex of the irrelevant ideal of the Rees algebra of the moduleGaetana Restuccia2012-09-21T07:06:06Z2012-09-21T07:06:06Zhttp://cab.unime.it/mus/id/eprint/731This item is in the repository with the URL: http://cab.unime.it/mus/id/eprint/7312012-09-21T07:06:06ZAn automatic apparatus for the dielectric spectra collectionWe describe an automatic apparatus for the measurement of dielectric spectra as a function of frequency (in the $10^0 \ - 10^5$ Hz range) and of temperature (from liquid He up to 500 K), The apparatus consists of a Personal Computer that controls a Lock-in Amplifier, a Signal Generator and an appropriately designed thermostat. Examples of measured spectra for salt complexed Poly(ethylene-Oxide) are also reported. G. GalliM. LanzaG. Salvato2012-09-21T06:55:36Z2013-04-02T09:22:02Zhttp://cab.unime.it/mus/id/eprint/728This item is in the repository with the URL: http://cab.unime.it/mus/id/eprint/7282012-09-21T06:55:36ZChebyshev Hermite polynomials Schrödinger equation and heat conductionIn this paper, we present a solution of a particular one-dimensional Schrödinger equation, the solution of which leads to Chebyshev Hermite polynomials. We further show that our special Schrödinger equation is related to an equation of heat conduction.S.D. BajpaiM. Sadhana2012-09-20T10:24:35Z2012-09-20T10:24:35Zhttp://cab.unime.it/mus/id/eprint/722This item is in the repository with the URL: http://cab.unime.it/mus/id/eprint/7222012-09-20T10:24:35ZAlcune probabilità geometriche di tipo buffon nel piano euclideoDans ce travail on étudie quelques problèmes de probabilitiés géométriques de type Buffon dans le plan euclidien pour un reseau de droites qui délimitent des bandes de largeur constante ou des parallélogrammes et le "corps test" un semi-disqu, un secteur circulaire ou une semi-elipse.A. Mannino2012-09-20T10:13:08Z2012-09-20T10:13:08Zhttp://cab.unime.it/mus/id/eprint/720This item is in the repository with the URL: http://cab.unime.it/mus/id/eprint/7202012-09-20T10:13:08ZQuantization of gravityWe show that, in the Riemannian theory of gravity, the superpotential of the Riemann-Christoffel tensor (the existence of wich stems from the Bianchi identities)is none else than the tensor generalization $V_i_j$ of Poisson's potential, the source of wich is the "material tensor" $T_i_j.$ Endowing then the gravition with a rest mass $c^-^1 \hbar\kappa,$ we see that $\kappa^2 \ V_i_j$ add to $\chi \ T_i_j,$ and is thus interpretable as an energy monumentum density of the gravity field. This allows us to quantize the coupled massive gravition and Proca or Kemmer spin 0 particle fields, by extending into Riemannian geometry the procedure Schwinger used in quantum electrodynamics. Finally, Einstein's gravity tensor $R_i_j- \frac{1}{2}Rg_i_j$ is equated to the mean value $\mathcal{h}\Psi|\chi\tau_i_j+\kappa^2V_i_j|\Psi\mathcal{i}$ of the total energy-momentum density; $\tau_i_j$ denotes the canonical energy-momentum ensity, which is symmetric in the absence of an electromagnetic field.O. Costa De Beauregard