15 research outputs found
Diagnostic and treatment modalities for patients with cervical lymph node metastases of unknown primary site – current status and challenges
Structural Damage in Masonry. Description and Interpretation of Crack Patterns: Basis for Finding the Damage Causes
Before deciding on any repair technique for the conservation of damaged historic masonry structures a diagnosis
based on experimental investigation and modelling has to be carried out. The first important step of
this diagnosis is the survey and interpretation of the structural damages usually shown by a crack pattern.
This operation is not always easy. In order to associate the damage symptoms to the damage causes it is necessary
to describe the mechanical behaviour of masonry under different actions and to describe the possible
causes of the structural damage. The aim of the paper is to define the basis for a structural damage atlas that
will be further proposed as part of an expert system, MDDS, which has already been set up for the detection
of physical damages to the masonry materials
Definitive van constructive schadepatronene De MDDS constructieve schadeatlas cap. II-4 aflevering 31,
Ab initio phonon calculations in solids
We present some applications of a first-principles approach to the study of the vibrational properties of crystals. The ab initio lattice dynamics is studied by means of a perturbative approach to the density-functional theory. The validity of this method is investigated performing the calculation of the phonon frequencies of crystals with different structure and bonding properties. The results obtained are in excellent agreement with the available experimental data