to protect and multiply important and rare plant resources, in vitro culture serves as a more efficient alternative to traditional propagation approaches. levisticum officinale koch. a member of apiaceae is an important, endangered and neglected species in iran, which has been shown to have diuretic, spasmolytic and carminative effects. in order to supply enough plant materials for micro-propag...

Micro-blog has been an important social network platform in recent years. With the advances in information influence and propagation ability, the date of micro-blog has attracted the attention of scholars of all kinds. More and more people are interested in studying microblogging from various aspects, such as user motivation, information propagation, text analysis, user network structure. This ...

As designers become more aggressive in introducing optical components to micro-systems, rigorous optical models are required for system-level simulation tools. Common optical modeling techniques and approximations are not valid for most optical micro-systems, and those techniques that provide accurate simulation are computationally slow. In this paper, we introduce an angular frequency optical ...

Failure of packaged polysilicon micro-electro-mechanical systems (MEMS) subjected to impacts involves phenomena occurring at several length-scales. In this paper we present a multi-scale finite element approach to properly allow for: (i) the propagation of stress waves inside the package; (ii) the dynamics of the whole MEMS; (iii) the spreading of micro-cracking in the failing part(s) of the se...

Education has the power to transform societies and contribute to social and economic development. In this paper we present the mobile technologies used for teacher professional development (TPD) and communicative language teaching in English in Action (EIA). The project aims to assist 25 million people access greater social and economic opportunities through English language teaching and TPD. E...