Non-smooth dynamics of a cantilever beam subjected to a transverse harmonic force and impacting onto a soft obstacle is studied. Upon formulating the equations of motion of the beam, proper attention is paid to identifying the mechanical properties of an equivalent single-degree-of-freedom (SDOF) piecewise linear impacting model. A multi-degree-of-freedom (MDOF) model of the impacting beam is a...

Resonant phenomena for a class of nonlinear systems, which can be described by a single-degree-of-freedom (sdof) model with a polynomial-type nonlinear stiffness, are investigated using nonlinear output frequency response functions (NOFRFs). The concepts of resonance and resonant frequencies are proposed for this class of nonlinear systems using the NOFRF concept, and the effects of damping on ...

Results of damage prediction in buildings can be used as a useful tool for managing and decreasing seismic risk of earthquakes. In this study, damage spectrum and C4.5 decision tree algorithm were utilized for damage prediction in steel buildings during earthquakes. In order to prepare the damage spectrum, steel buildings were modeled as a single-degree-of-freedom (SDOF) system and time-history...

1 Introduction To implement new languages or extend existing languages, preprocessors or translators are often used rather than native compilers. The rst implementation of C++ was a translator to C. Many language extensions and source level optimization tools for C/C++ are implemented as a translator to C/C++. Recently, many extensions for the Java language[5] have also been proposed which are ...

Contemporary data of extra-pair paternity (EPP) in human populations may be biased by the use of modern contraceptives. Studies have now estimated historical EPP rates in several human populations. The observed low EPP rates challenge the idea that women routinely 'shop around' for good genes by engaging in extra-pair copulations.

In this paper we develop the principles of time-delayed control design for the active control of structures in which the presence of large time delays in the control loop may make it difficult for their effects to be easily eliminated and/or compensated. A control design strategy is proposed that is different from what has been generally accepted hereto; it calls for taking advantage of these l...

BACKGROUND Escalation of commitment is the tendency that (innovation) projects continue, even if it is clear that they will not be successful and/or become extremely costly. Escalation prevention potential (EPP), the capability of an organization to stop or steer implementation processes that do not meet their expectations, may prevent an organization of losing time and money on unsuccessful pr...

In this paper, we select the application domain of earthquake engineering for utility of sonification, where signals are of random frequency and amplitude content. In particular, we focus on the response of structures to particular earthquake time histories. Given a random ground motion input, the resulting response signal will vary in the time and frequency domain, and show large variations in...

Erythropoietic protoporphyria (EPP; E80.0, ICD-10) is an inherited disorder resulting from partially deficient activity of ferrochelatase, the last enzyme in the heme biosynthetic pathway (1). In EPP, protoporphyrin accumulates in erythrocytes, bile, and skin, with photoactivation of accumulated protoporphyrin causing endothelial injury. Thus, the main symptom of EPP is painful cutaneous photos...

Recently, we demonstrated that a 2-EPP is superior to a 1-EPP if fifteen entangled states are initially shared via a phase-damping channel. We seek to prove that 2-EPP is superior to 1-EPPs when there is only one kind of error. In the present paper, we show property of exponential bounds on fidelity of EPPs, which correspond to bounds on error exponent in usual information transmission. As a re...