The magnification factor for the steady-state response of a SDOF system under harmonic loading is described in many structural dynamics textbooks; the well known analytical solution is easily obtained from the solution to the damped equation of motion for harmonic loading. The complete and steady state solutions can differ significantly. An analytical expression for the maximum response to the ...

In this paper, a multiscale modelling strategy is used to study the effect of grain-boundary sliding on stress localization in a polycrystalline microstructure with an uneven distribution of grain size. The development of the molecular dynamics (MD) analysis used to interrogate idealized grain microstructures with various types of grain boundaries and the multiscale modelling strategies for mod...

This paper assesses the impact of Swedish welfare-to-work programmes on labour market performance including wages, labour market status, unemployment duration and future welfare-to-work participation. We develop a structural dynamic model of labour supply which incorporates detailed institutional features of these policies and allows for selection on observables and unobservables. We estimate t...

Structural dynamic modification techniques have been available as a design tool for several decades. This article reviews the methodology of the technique including both proportional and complex mode formulations. Issues pertaining to limitations on their use and truncation effects of unmeasured modes are discussed. Also discussed is the use of simplistic elements through higher order elements....

This article presents a Matlab-based educational software developed at Aristotle University of Thessaloniki in Greece, in order to familiarize students and young engineers with fundamental concepts of structural dynamics and, in particular, soil–structure interaction problems. This user-friendly educational tool aims to assist the students in comprehending the nature of this complex phenomenon ...

A model is presented for predicting the acrosswind response of isolated square cross-section buildings to typical atmospheric boundary layers, over different terrains. Closed-form expressions for the autoand cospectra of the acrosswind force fluctuations are formulated, based on wind tunnel measurements. A statistical integration scheme is used to develop a mode-generalized acrosswind spectrum ...

a The Author 2009. Published by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.5), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the or...

Fertility is being determined by the actual bearing of children and or the demand for children. It is a measure of rate at which population increases to itself by relating number of births to size of some selection of population such as number of married couples or number of women of child bearing age [1-3]. Fertility is high in Bangladesh even by the principles of developing countries. The red...

SOUND AND VIBRATION/JANUARY 2001 Often times, people ask some simple questions regarding modal analysis and how structures vibrate. Most times, it is impossible to describe this simply and some of the basic underlying theory needs to be addressed in order to fully explain some of these concepts. However, many times the theory is just a little too much to handle and some of the concepts can be d...

C20 of molecular structures for C70Br10 or C60Cl24, which have been later confirmed by X-ray crystallography (partially with the use of synchrotron radiation). For the mixture of two compounds with known X-ray structures, C60Cl28 and C60Cl30, the experimental IR spectra were interpreted by comparison with the calculated ones using subtle differences for compounds possessing very similar structu...