Comparison of existing formulae for estimating the overtopping rate in harbour breakwaters

The research that is summarized in this article, resultant of diverse studies realized in the CEDEX, has for object a comparative analysis of methods of overtopping rates developed by different authors. For that, the summary was realized first and the analysis of the existing formulations to estimate the rate of overtopping on rubble mound and vertical breakwaters. Later, there was carried out the contrast of the above mentioned formulations by the results obtained in a serie of hydraulic model tests of the Hydraulic Research Laboratory (the Center of Studies of Ports and Coasts of the CEDEX, Madrid, Spain).

Storm characterization for analyzing stone armour damage progression

Storm evolution is fundamental for analysing the damage progression of the different failure modes and establishing suitable protocols for maintaining and optimally sizing structures. However, this aspect has hardly been studied and practically the whole of the studies dealing with the subject adopt the Equivalent triangle storm. As against this approach, two new ones are proposed. The first is the Equivalent Triangle Magnitude Storm model (ETMS), whose base, the triangular storm duration, D, is established such that its magnitude (area describing the storm history above the reference threshold level which sets the storm condition),HT, equals the real storm magnitude. The other is the Equivalent Triangle Number of Waves Storm (ETNWS), where the base is referred in terms of the real storm's number of waves,Nz. Three approaches are used for estimating the mean period, Tm, associated to each of the sea states defining the storm evolution, which is necessary to determine the full energy flux withstood by the structure in the course of the extreme event. Two are based on the Jonswap spectrum representativity and the other uses the bivariate Gumbel copula (Hs, Tm), resulting from adjusting the storm peaks. The representativity of the approaches proposed and those defined in specialised literature are analysed by comparing the main armour layer's progressive loss of hydraulic stability caused by real storms and that relating to theoretical ones. An empirical maximum energy flux model is used for this purpose. The agreement between the empirical and theoretical results demonstrates that the representativity of the different approaches depends on the storm characteristics and point towards a need to investigate other geometrical shapes to characterise the storm evolution associated with sea states heavily influenced by swell wave components.

Tratados de arquitectura civil montea y canteria y reloxes

Segun Palau, 337934 este vol. contiene un extracto de os tomos V y IX de la obra "Compendio Mathematico, en que se contienen todas las materias mas principales de las Ciencias que traten de la Cantidad"

Compendio mathematico : en que se contienen todas las materias mas principales de las Ciencias que tratan de la cantidad

Sign. : [ ]1, [estrella]8, A-Z8, Aa-Dd8

Libro de instrumentos nueuos de Geometría muy necessarios para medir distancias, y alturas, sin que interuengan numeros como se demuestra en la practica : demas desto se ponen otros tratados, como es vno, de conduzir aguas, y otro vna question de artilleria, en donde se ponen algunas demostraciones curiosas

En prelim. aparece el autor como Andrés Garcia de Cespedes

Curso de ciencias fisicas para el uso de los alumnos de filosofía quimica

Subtít. posterior a la mención de responsabilidad

Tratado de la Gnomonica u De la Theorica y practica de los reloxes de sol

Sign. : []2, A-P8

Relacion verdadera, donde se da cuenta del exemplar castigo que ... el Rey Carlos Segundo de Inglaterra mando hazer en veinte y ocho personas, que ... solicitaron la muerte del Rey Carlos primero su padre ...

Pie de imp. consta colofón

Crotalogía ó Ciencia de las castañuelas : instruccion científica del modo de tocar las Castañuelas para baylar el Bolero ... ; parte primera : contiene una nocion exacta del Instrumento llamado Castañuelas, su origen, modo de usarlas ...

Índice

Personalisation of intelligent homecare services adapted to children with motor impairments

Ambient Intelligence could support innovative application domains like motor impairments' detection at the home environment. This research aims to prevent neurodevelopmental disorders through the natural interaction of the children with embedded intelligence daily life objects, like home furniture and toys. Designed system uses an interoperable platform to provide two intelligent interrelated home healthcare services: monitoring of children¿s abilities and completion of early stimulation activities. A set of sensors, which are embedded within the rooms, toys and furniture, allows private data gathering about the child's interaction with the environment. This information feeds a reasoning subsystem, which encloses an ontology of neurodevelopment items, and adapts the service to the age and acquisition of expected abilities. Next, the platform proposes customized stimulation services by taking advantage of the existing facilities at the child's environment. The result integrates Embedded Sensor Systems for Health at Mälardalen University with UPM Smart Home, for adapted services delivery.

Curso elemental de botánica [Texto impreso] : dispuesto para la enseñanza del Real Jardin de Madrid de orden del rey nuestro señor

Datos de ed. preceden a explicación de tít.

Curso elemental de botánica [Texto impreso] : dispuesto para la enseñanza del Real Jardin de Madrid de órden del rey nuestro señor

Datos de ed. preceden a explicación de tít.

The history of England from the revolution to the commencement of the present administration : [Texto impreso] written in continuation of Mr. Hume's History

Indice

Considerations on the trade and finances of this Kingdom, and on the measures of Administration with respect to those great national objects since the conclusion of the peace [Texto impreso]

Autor tomado de la Britsh Library