This study investigates dynamic & static behaviour of automotive engine crankshaft with the specific conditions. This work investigates the coupled modes, including, couple torsional flexural vibration and coupled longitudinal flexural vibration for non rotating engine crankshaft. The finite element models of this generally used are in two categories beam elements and solid elements and in this...

The sonoelastographic theory of tumor detection predicts enhanced image contrast as vibration frequency increases. However, the opposite effect is observed when imaging liver lesions at frequencies (200-400 Hz) where strong viscoelastic effects dominate. Mechanical testing was performed and confirmed the viscoelasticity of liver tissue. The time dependence of the stress relaxation suggests a vi...

Attract-Integral ~uations are derived for the ~p~~nta~~on of in-plane as well as transverse displacements of shallow shells undergoing small, quasi-static or dynamic deformations. A combined boundary/interior element method for static stress, free-vibration, and transient response analyses of shallow shells, based on these integral equations, is derived. Numerical results are presented to demon...

Vibration energy (mechanical energy) that is generated by vehicle movement on the road converted into electric energy by piezoelectric effect. Piezoelectricity is the electric charge that accumulates in certain solid material (notably crystal, certain ceramic and biological matter such as bone, DNA and various proteins) in response to applied mechanical stress. The aim of this research work is ...

exacerbated by stress, especially in older adults The 1-to 2-Hz oscillations in muscle force are You might find this additional information useful... Fluctuations in plantar flexion force are reduced after prolonged tendon vibration on the following topics: those papers emphasizing adaptive and integrative mechanisms. It is published 12 times a year (monthly) by the American publishes original ...

Objectives Monitoring of brachial blood pressure during exercise-ECG testing is mandatory and changes in blood pressure (BP) can provide critical management evidence. Patient movement, mechanical vibration, artifactual sounds and observer variability make standard manual techniques problematic. This was an investigator-initiated study to assess an automated auscultatory technique of BP assessme...

Holographie Interferometry methods have been successfully employed to characterize the materials and behavior of diverse types of structures under stress 1'2'3• Specialized variations of this technology have also been applied to define dynamic and vibration related structural behavior4• Such applications ofholographic technique offer some ofthe most effective methods of modal and dynamic analys...

background many industrial devices have an excessive vibration which can affect human body systems. the effect of vibration on cochlear histology has been as a debatable problem in occupational health and medicine. objectives due to limitation present in human studies, the research was conducted to survey the influence of vibration on cochlear histology in an animal model. materials and methods...

Deuterated oxides exhibit prolonged hot carrier lifetimes at room temperature. We report evidence that this improved hot carrier hardness exists over the temperature range between -25 °C and 200 °C. However, the benefit of deuterium incorporation deceases with increasing stress temperature. Furthermore the VT -shift shows a remarkable absence of temperature dependence for the deuterated samples...