El afijo [[[V]-a/e/i]TFut -dor]N/A de “persona, instrumento, lugar, o cualidad" en los diccionarios y en La Ciudad y los perros de Mario Vargas Llosa, en español y en chino

En aquest treball s’estudia les manifestacions de l'afix –dor de l'espanyol i es comparen els resultats amb les versions corresponents en diferents paràfrasi del xinès mandarí segons els diferents significats d'“agent”, “instrument”, “lloc” o “qualitat”. Per precisar les manifestacions d'aquest afix en les dues llengües, prèviament comparem certes paraules en –idor que apareixen en el DRAE-92 amb la seva versió corresponent en xinès mandarí. Posteriorment es compilen tots els derivats en –dor en l'obra La ciudad y los perros de Mario Vargas Llosa i les dades corresponents en l'obra traduïda en xinès mandarí. Aquest treball és breu i bàsic per ser una recerca d'iniciació en el marc dels estudis de la comparació de l'espanyol i el xinès mandarí, però en certa manera, pot servir com a eina bibliogràfica en els processos de l'aprenentatge del xinès mandarí i de la traducció entre les dues llengües

Ab initio cluster-model study of the on-top chemisorption of F and Cl on Si(111) and Ge(111) surfaces

The interaction of atomic F and Cl with Si4H9 and Ge4H9 cluster models has been studied by using ab initio pseudopotentials and basis sets of increasing complexity. The results show that the effect of d orbitals is important in order to reproduce the experimental findings. However, the use of polarization functions in the atoms which are directly involved in the chemisorption bond leads to results which are very close to those obtained using extended basis sets. The local nature of the chemisorption bond is also interpreted by means of a Mulliken population analysis. For F-Si4H9 and Cl-Si4H9 the present results are in good agreement with previous ab initio all-electron calculations, and for the chemisorption of Cl on Si(111) and Ge(111) surfaces, good agreement is found with respect to the available experimental results as well as with previous slab calculations based on the local-density-functional formalism.

Chemisorption of group-III metals on the Si(111) and Ge(111) surfaces: An ab initio study

Chemisorption of group-III metal adatoms on Si(111) and Ge(111) has been studied through the ab initio Hartree-Fock method including nonempirical pseudopotentials and using cluster models to simulate the surface. Three different high-symmetry sites (atop, eclipsed, and open) have been considered by using X4H9, X4H7, and X6H9 (X=Si,Ge) cluster models. In a first step, ideal surface geometries have been used. Metal-induced reconstruction upon chemisorption has also been taken into account. Equilibrium distances, binding energies, and vibrational frequencies have been obtained and compared with available experimental data. From binding-energy considerations, the atop and eclipsed sites seem to be the most favorable ones and thus a coadsorption picture may be suggested. Group-III metals exhibit a similar behavior and the same is true for Si(111) and Ge(111) surfaces when chemisorption is considered.