7 articles in this issue
Daniel Sappok, Bernd Sauer
Driving and timing chains are widely used machine elements which are continuously improved regarding wear and energy efficiency. Especially for timing chains, reducing wear is of high importance as it is critical for the function of the combustion engine.... see more
Yanxia Xue, Zhenchao Su, Huailei Wang
This paper is intended to reveal some new aspects of the principle of work and energy in its differential form. A theorem is given to state the principle of work and energy in differential form that can be applied alone to build up all the dynamical equat... see more
Mohammad Zamani Nejad, Mehdi Jabbari, Mehdi Ghannad
Using multi-layers method (MLM), a semi-analytical solution have been derived for determination of displacements and stresses in a thick cylindrical shell with variable thickness under non-uniform pressure. Three different profiles (convex, linear and con... see more
Dániel Bachrathy
Computation of the stability limit of systems with time delay is essential in many research and industrial applications. Most of the computational methods consider the exact model of the system, and do not take into account the uncertainties. However, the... see more
Reza Hedayati, Seyyed Mohammadreza Fallah Alipour Zare
Femur bone is known as the largest and longest bone in human body. It bears most of the body weight during activities such as standing, walking, and running. This study investigates impact of the geometry of the window perforated in the shaft part of this... see more
Prabu Arockiasamy, Ramachandran Bhagavathiammal Anand
The effect of nanoparticle as additive in Jatropha biodiesel is experimentally investigated in a single cylinder DI diesel engine with the aim of diluting the level of pollutants in the exhaust and for the improvement of engine performance owing to its po... see more
Balázs Farkas, Viktor Szente, Jeno Miklós Suda
A new type of thermodynamic machine was designed and prepared for testing to evaluate its capability in extracting mechanical energy from low enthalpy heat sources. The system was completed with a newly designed rotary piston compressor and expander to im... see more