the meaning theory of lucla and mouffe and their theory of sociology are very integrated. the sphere of society is like sinology system in which each sign wants to find it’s meaning .to obtain this, they challenge each other . the social sign system and it’s related concepts such as signifier and signified try to define the word in it’s specific approach. so it can identify the social subjects ...

occupational health and safety systems have a unique role in sustainable development of hazardous industries. the aim of this research is investigating and assessing of h3se performance excellence systems. to achieve mentioned goal by qualitative approach and multi grounded theory tools h3se excellence model was described. mentioned tools contain two qualitative research methods (meta synthesis...

In this paper, the basic constitutive equations and equations of motion are derived to describe the behavior of thermoelastic porous piezoelectric medium by using Biot’s theory and the theory of generalized thermoelasticity with on relaxation time (Lord-Shulman). The electrical enthalpy density function is derived in the general coordinates. Also, clear definitions for the poroelastic modulus, ...

at present, new tendencies in international commercial arbitration try to delocalize and gives more independence to arbitration, from national laws. the ultimate degree of this independency is demonstrated in lex mercatoria theory. in recent years this theory has been gone beyond the frontiers of pure theory and entered into the national laws of some countries such as netherlands, france and in...

‎in this paper, we investigate the chaotic behaviors of the fractional-order permanent magnet synchronous motor (pmsm) system. the necessary condition for the existence of chaos in the fractional-order pmsm system is deduced and an active controller is developed based on the stability theory for fractional systems. the presented control scheme  is simple and flexible, and it is suitable both fo...

a brief overview of the historical development of ergonomics in organizational design and management (odam) is presented. as a component of technology or ergonomics, macro ergonomics are described as a systematic. scientifically based means of optimizing work system  design. macro ergonomics  might  be reoffered  to  as: organization - environment - human - machine interface technology. involve...

nuclear level densities and spin cut-off factors have been deduced for nuclei in the mass region 24‹a‹63,from a microscopic theory, which includes nuclear pairing interaction. single particle levels for both seeger and nilsson potentials were used in the calcdations. level densities extracted from the theory are compared with their conesponding experimental values, it is found that the overall ...