nanocomposites made of carbon nanotube (cnt) bundles have attracted researchers’ attention due to their unusual properties such as: light weight, flexibility and stiffness.  in this paper, the effects of straight and rope-shaped bundles on nanocomposite effective mechanical properties are investigated.  first, fea models are created consisting of cnts with different shapes of straight and rope-...

The Lie derivation of multivector fields along multivector fields has been introduced by Schouten (see cite{Sc, S}), and studdied for example in cite{M} and cite{I}. In the present paper we define the Lie derivation of differential forms along multivector fields, and we extend this concept to covariant derivation on tangent bundles and vector bundles, and find natural relations between them and...

This paper investigates a special type of recurrent expressions, lexical bundles, defined as a sequence of three or more words that co-occur frequently in a particular register (Biber et al., 1999). Considering the importance of this group of multi-word sequences in academic prose, this study explores the forms and syntactic structures of three- and four-word bundles in English abstracts writte...

connor et al. (2008) mention “specifying textual requirements of genres” (p.12) as one of the reasons which have motivated researchers in the analysis of writing. members of each genre should be able to produce and retrieve these textual requirements appropriately to be considered communicatively proficient. one of the textual requirements of genres is regularities of specific forms and content...

Abstract The study of linguistic devices variously referred to as stance expressions is one of the best means by which the relationship between the writer, the reader, and propositional meaning could be examined. This paper looks at a particular structural group of lexical bundles encoding stance expressions. These are bundles starting with an anticipatory it followed by is, a predicative adjec...

The study of lexical bundles, among types of text analysis, is gaining importance over the others in the last century. The present study employed a frequency-based analysis approach to the use of lexical bundles. The discussion section of 60 political science articles, with corpora around 253,063 words were investigated in three aspects of structure, form, and function of lexical bundles. The p...

High performance work practices (HPWPs) are human resource management practices aimed at stimulating employee and organisational performance. The application of HPWPs is not widespread in small organisations. We examine whether the implementation of coherent bundles of HPWPs (aimed at employee ability, employee motivation or at the opportunity to perform) depends on the scarcity of resources, a...

Abstract The study of linguistic devices variously referred to as stance expressions is one of the best means by which the relationship between the writer, the reader, and propositional meaning could be examined. This paper looks at a particular structural group of lexical bundles encoding stance expressions. These are bundles starting with an anticipatory it followed by is, a predicative adjec...

Introduction: Hedera helix is an evergreen plant used in treatment of wounds in the Iranian folk medicine. One of the main stages in wound healing process is, the proliferative phase in which fibroblasts proliferate within the wounds and produce extracellular matrix. Collagen is the main constituent of extracellular matrix. So the aim of this study was to evaluate the effect of Hedera helix alc...