Dynamic Ratcheting (DR) is a nonlinear dynamic phenomenon occurring in hysteretic damping systems. It means the structural plastic deformation increases asymmetrically in successive cycles under an earthquake excitation. Although it is generally recognized that DR is closely related to the frequency contents of an earthquake excitation applied to thestructure, no targeted analysis has bee...

Abstract—Finding the linear and nonlinear responses of a typical single-degree-of-freedom system (SDOF) is always being regarded as a time-consuming process. This study attempts to provide modifications in the renowned Newmark method in order to make it more time efficient than it used to be and make it more accurate by modifying the system in its own non-linear state. The efficacy of the prese...

We investigate the secure degrees of freedom (SDoF) of a two-transmitter Gaussian multiple access channel with multiple antennas at the transmitters, a legitimate receiver and an unknown number of eavesdroppers each with a number of antennas less than or equal to a known value NE . The channel matrices between the legitimate transmitters and the receiver are available everywhere, while the legi...

In recent years, soft computing and artificial intelligence techniques such as artificial neural network (ANN) and adaptive neuro-fuzzy inference system (ANFIS) have been effectively used in various civil engineering applications. This study aims to examine the potential of ANN and ANFIS for modeling the compressive strength of concrete containing expanded perlite powder (EPP). For doing this, ...

We describe the extensible Java preprocessor EPP and a data-parallel extension of Java implemented with EPP. EPP can be extended by incorporating EPP plugins. These plugins are programmed with the Ld-2 language that we also describe. Tiny Data-Parallel Java is an example of EPP plugin. High portability is guaranteed because the translated code and the runtime systems are pure Java code. Applica...

near-fault ground motions with long-period pulses can place severe demands on structures near an active fault. these pulse-type ground motions can be represented by pulse sequences with simple shapes. half-sinusoidal pulse sequences are used to approximate recorded ground motions and dynamic responses of sdof system under the excitation of these pulse sequences are studied. four cases are consi...

Eosinophilopoietin (EPP) was previously characterized by the ability to stimulate eosinophil production in vivo, but these studies could not ascertain whether EPP had a direct effect on the bone marrow or acted indirectly by causing release of eosinophilopoietic activity by other tissues. The present studies demonstrate that EPP stimulates eosinophil growth in liquid culture of mouse bone marro...

This paper describes the design and evaluation of an experimental prosthesis-control system based on the concept of extended physiological proprioception (EPP). It was originally hypothesized that EPP control effected by residual shoulder motion could be effectively applied in multifunctional prostheses for shoulder disarticulation amputees. The experimental system developed for this study util...

We introduce the Semantic Depth of Field (SDOF) technique, which is an alternative focus+context method for information visualisation. SDOF blurs objects which are currently out of focus, i.e., not interesting for the user. In the experimental study described in this paper, we found that SDOF supports the preattentive perception of sharp targets and the numerical estimation of the amount of dat...

SDOF analysis is widely accepted for blast design, but many designers are not aware of the large database of available comparisons between results from SDOF analysis and blast test data. This paper collects a large amount of this data, excluding test data that is proprietary or restricted from public distribution, and presents comparisons of SDOF analysis results with test results for different...