a new approach is proposed to model a crack in orthotropic composite media using the extended finite element method (xfem). the xfem uses the concept of partition of unity in addition to meshless basic idea of approximating a field variable by its values at a set of surrounding nodes. as a result, higher order approximations can be designed with the same total number of degrees of freedom. in t...

Objective: The use of the Internet is widely increasing among the new generation, shaping an important aspect of people's lives. The use of the social media can influence body image concerns, social isolation, and social mood. The purpose of the present study is to assess body image concerns, social isolation, and mood based on the amount of social media use. Method: This study has been conduc...

the goal in this study was to determine the cmponents influencing the professional development of trainers in the ministry of agricultural-jihad training centers, to plan for their further continous professional advancement. the research method was a descriptive-correlational one and data gathering instrument a researcher made questionnaire. the validity (based on expert opinion) and reliabilit...

The study aimed to reveal the perceptions of Journalists' Perceptions toward digital media Training in Jordanian Media organizations. sample consisted journalists working used descriptive exploratory approach and concluded that there is an effect applying tools according journalists, they focused on reasons why most organizations are not ready employ techniques. In addition, indicated were Jord...

an adaptive input-output linearization method for general nonlinear systems is developed without using states of the system. another key feature of this structure is the fact that, it does not need model of the system. in this scheme, neurolinearizer has few weights, so it is practical in adaptive situations.  online training of neurolinearizer is compared to model predictive recurrent training...

halophilic and halotolerant microorganisms are good candidates for decolorization of azo dyeswhich are routinely used in the dyeing process in textile industries. in this paper, theoptimization of biological decolorization of synthetic dye solutions containing remazol black bby the previously isolated halophilic bacterium halomonas sp. d2 is investigated. in a primaryinvestigation using a one-f...

numerical study of double-diffusive natural convective heat transfer in a curved cavity filledwith a porous medium has been carried out in the current study. polar system has beenselected as coordinate system. as a result, all equations have been discredited in r and θdirections. brinkmann extended darcy model has been utilized to express fluid flow inporous matrix in the enclosure. smaller and...

intergenerational gap refers to the disturbance and crisis in the cultural sequence of generations, which leads to conflict in terms of values and norms between parents and children. until recently, this phenomenon has not been considered a serious issue in iranian society and the continuation of similar thought patterns through the generations has prevented the emergence of distance and variou...

COVID-19 has affected all areas of our lives, and cinema, as part culture, is no exception. New existing technologies applied to audiovisual products are changing the way in which we provide access culture.Nobody challenges importance having accessible content. This aim recently approved European Directives following ratification UN Convention on Rights Persons with Disabilities (UNCRPD). The n...