This paper describes a method to estimate the capacitance between the human body and earth ground that is based on an impedance analyzer intended to measure ungrounded impedances. The method does not need any external components other than two common resistors, works in the 10 kHz to 1 MHz frequency range, and can be applied to other grounded impedances.

Given the worldwide industry progress in the construction of massive concrete structures, it would be a good idea to use concrete gravity base structures (GBS).In this regard, better understanding of thesestructuresregardingtheiradvantages and disadvantages in offshore areas seems necessary.The present study employed MacCammy-Fuchs method, which is based on the size of the structure to the wave...

References 1 Deming, J.W. (2002) Psychrophiles and polar regions. Curr. Opin. Microbiol. 5, 301–309 2 Deming, J.W. and Eicken, H. (2004) Life in ice. In Planets and Life: The Emerging Science of Astrobiology (Baross, J.A. and Sullivan, W., eds), Cambridge University Press (in press) 3 Bowman, J.P. et al. (1997) Diversity and association of psychrophilic bacteria in antarctic sea ice. Appl. Envi...

In textbook descriptions of Newton’s cradle, it is generally claimed that displacing one ball will result in a collision that leads to another ball being ejected from the line, with all others remaining motionless. Hermann and Schmälzle, Hinch and Saint-Jean, and others have shown that a realistic description is more subtle. We present a simulation of Newton’s cradle that reproduces the break-u...

Experimental proof is provided of an unconventional seismic design concept, which is based on deliberately underdesigning shallow foundations to promote intense rocking oscillations and thereby to dramatically improve the seismic resilience of structures. Termed rocking isolation, this new seismic design philosophy is investigated through a series of dynamic centrifuge experiments on properly s...

Ancient columns, made with a variety of materials such as marble, granite, stone or masonry are an important part of the European cultural heritage. In particular columns of ancient temples in Greece and Sicily which support only the architrave are characterized by small axial load values. This feature together with the slenderness typical of these structural members clearly highlights as the e...

Understanding the out-of-plane behavior of unreinforced masonry walls is crucial in seismic assessment existing buildings. Here, dynamic response a vertical spanning strip wall, connected to flexible diaphragm at top, investigated. Despite simplicity model, two rocking rigid bodies elastically restrained highly nonlinear. This due different phenomena: when motion system may assume configuration...

Biodegradable electrospun polycaprolactone scaffolds can be used to support bone-forming cells and could fill a thin bony defect, such as in cleft palate. Oscillatory fluid flow has been shown to stimulate bone production in human progenitor cells in monolayer culture. The aim of this study was to examine whether bone matrix production by primary human mesenchymal stem cells from bone marrow or...

Primarily, two models are commonly used to describe rocking of rigid bodies; the Housner model, and the Winkler foundation model. The first deals with the motion of a rigid block rocking about its base corners on a rigid foundation. The second deals with the motion of a rigid block rocking and bouncing on a flexible foundation of distributed linear springs and dashpots (Winkler foundation). The...

Signals transmit information to receivers about sender attributes, increase the fitness of both parties, and are selected for in cooperative interactions between species to reduce conflict [1, 2]. Marine cleaning interactions are known for stereotyped behaviors [3-6] that likely serve as signals. For example, "dancing" and "tactile dancing" in cleaner fish may serve to advertise cleaning servic...