Measurement of the Evolution of Cornet Acoustics

Short Communication: On the record of the red cornet fish Fistularia petimba (Syngnathiformes, Fistularidea) in Jask port, the Oman sea

Robust Identification of Smart Foam Using Set Mem-bership Estimation in A Model Error Modeling Frame-work

The aim of this paper is robust identification of smart foam, as an electroacoustic transducer, considering unmodeled dynamics due to nonlinearities in behaviour at low frequencies and measurement noise at high frequencies as existent uncertainties. Set membership estimation combined with model error modelling technique is used where the approach is based on worst case scenario with unknown but...

Short Communication: On the record of the red cornet fish Fistularia petimba (Syngnathiformes, Fistularidea) in Jask port, the Oman sea

Influences of temporal evolution of ground motion frequency content on developed dynamic ratcheting in SDOF systems

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...

Effect of Mechanical Alloying and Sintering on Phase Transformation, Microstructural Evolution, Mechanical Properties and Density of Zr-Cr Alloy

The purpose of present research was production ofZr-based alloy as the nuclear fuel cladding by mechanical alloying (MA) and sintering process. Firstly, Zr and Cr powders were mechanically alloyed to produce the refractory and hard Zr-10 wt% Cr alloy, and then, the powder mixtures were consolidated by press and following sintering at temperature of 800˚C min. The phase evolution, microstructura...