Search results for " OPT"
showing 10 items of 13620 documents
Magnetic dichroism in angle-resolved hard x-ray photoemission from buried layers
2011
This work reports the measurement of magnetic dichroism in angular-resolved photoemission from in-plane magnetized buried thin films. The high bulk sensitivity of hard x-ray photoelectron spectroscopy (HAXPES) in combination with circularly polarized radiation enables the investigation of the magnetic properties of buried layers. HAXPES experiments with an excitation energy of 8 keV were performed on exchange-biased magnetic layers covered by thin oxide films. Two types of structures were investigated with the IrMn exchange-biasing layer either above or below the ferromagnetic layer: one with a CoFe layer on top and another with a Co${}_{2}$FeAl layer buried beneath the IrMn layer. A pronou…
Characterization of the Solid State Properties of Anodic Oxides on Magnetron Sputtered Ta, Nb and Ta-Nb Alloys
2012
Tantalum oxide, niobium oxide and Ta-Nb containing mixed oxides were grown by anodizing sputter-deposited Ta, Nb and Ta-Nb alloys of different compositions. A photoelectrochemical investigation was performed in order to estimate the band gap and the flat band potential of the oxides as a function of their composition. The band gap of the investigated Ta-Nb containing mixed oxides changed monotonically between those estimated for Ta2O5 (4.1 eV) and Nb2O5 (3.4 eV) and in agreement with a proposed correlation between the Band gap of an oxide and the difference of electronegativity of the oxide constituents. From the differential capacitance curves recorded in a wide range of electrode potentia…
Controlled polyhedral sweeping processes: existence, stability, and optimality conditions
2021
This paper is mainly devoted to the study of controlled sweeping processes with polyhedral moving sets in Hilbert spaces. Based on a detailed analysis of truncated Hausdorff distances between moving polyhedra, we derive new existence and uniqueness theorems for sweeping trajectories corresponding to various classes of control functions acting in moving sets. Then we establish quantitative stability results, which provide efficient estimates on the sweeping trajectory dependence on controls and initial values. Our final topic, accomplished in finite-dimensional state spaces, is deriving new necessary optimality and suboptimality conditions for sweeping control systems with endpoint constrain…
Thermomineral waters of Greece: geochemical characterization
2020
Formulations and exact algorithms for the distance-constrained generalized directed rural postman problem
2017
[EN] The generalized directed rural postman problem is an arc routing problem with many interesting real-life applications, such as routing for meter reading. In this application, a vehicle with a receiver travels through a series of neighborhoods. If the vehicle gets closer than a certain distance to a meter, the receiver is able to record the gas, water, or electricity consumption. Therefore, the vehicle does not need to traverse every street, but only a few, to get close enough to each meter. We study an extension of this problem in which a fleet of vehicles is available. Given the characteristics of the mentioned application, the vehicles have no capacities but there is a maximum distan…
Family home rights in divorce
2021
El ensayo ofrece un ?mapa? de los intereses en conflicto en la asignación de la vivienda familiar después de la separación o el divorcio y sus reglas de gobierno. La revisión crítica de la doctrina judicial, que considera la preservación del ?hábitat? doméstico como criterio exclusivo, lleva al autor a redefinir el fundamento axiológico de la legislación vigente, para proponer una interpretación diferente capaz de optimizar la promoción del interés superior del menor, sin afectar los intereses en competencia de una manera irracional y desproporcionada.
La autonomía progresiva del niño en los procesos de cuidado y custodia : comprensión del caso colombiano
2021
La posibilidad de participación de los menores de edad en los asuntos que les afectan es una dimensión de la autonomía progresiva; por eso, los procesos de guarda y custodia plantean un especial interés, particularmente si se opta por una custodia compartida. El estudio de los instrumentos internacionales, la jurisprudencia y la doctrina permiten una aproximación a los avances en la materia y las tareas que quedan aún pendientes.
Liquidación de la sociedad de gananciales: el caso de la adjudicación forzosa de participaciones sociales de carácter ganancial a un solo cónyuge. Co…
2021
In a liquidation of community property, the rules for the partition of the inheritance are of suppletive application. Therefore, the sentence opts for a criterion of flexible interpretation of those rules, whose application will be subject to the objective entity of the property in question. Accordingly, when the only property to be shared between the spouses is constituted by set of shares of common nature, taking into account the special circumstances of the case, such shares could be awarded to one of the spouses with the obligation to compensate the other in money, even if it requests the sale of the shares in the public auction. To this end, the request would have to impede the possibi…
Roadmap on optical rogue waves and extreme events
2016
Nail Akhmediev et al. ; 38 págs.; 28 figs.