In this contribution, vertically aligned carbon nanotubes were synthesized by chemical vapor deposition (CVD). The effects of intrinsic disorders constructed by mobile surface contaminants on the structural perfection of carbon nanotubes (CNTs) were investigated. The results indicated a complete picture on the effect of the involved parameters on the lattice defects of modulated CNTs based on the cooling step. Raman scattering showed that the different cooling methods of the CVD preforms altered the bound complex defects of the structure of the CNTs. Moreover, an array of CNTs was removed from the silicon substrate by applying the neutralized cooling method on the CVD, while the vertical and parallel orientations were retained. The FESEM images, coupled with Raman spectroscopy results, confirm the morphological improvements of the growth CNTs based on the neutralized cooling method.

Usually fin represent as one of the important structures in all type of airplane and the fin structure was greatly improved, especially for modern supersonic speed constructions. The main aim of delta fin construction is to minimize the weight of structure as much as possible and keeping the stiffness of material structural in margin of safety under design load [1]. The primary difference between classical method and finite element are the view structure and the ensuring solution procedure. Classical method considers the structure as a continuum whose behavior is governed by partial or ordinary differential equations [2]. By using finite element method consider the structure to be an assembly of small finite-sized particles. The behavior of the particles and the overall structure is obtained by formulating a system of algebraic equation that can be readily solved by developed methodology, which will be presented in form of software.

The paper has evaluated a sample of material which focuses on the teaching of vocabulary in Libyan Primary Schools. The major objective was to examine the underlying organising principles, teaching approaches and the learning processes, and to discover any shortcomings that might hinder the achievement of the intended outcomes. To fulfil this aim, as much information as possible was collected from various resources such as books, theses, study papers, journals and the World Wide Web. The discussion of the topic has covered three main points. They are a review of the relevant literature, analysis and evaluation of the material in question and, finally, suggestions of how this material might be improved. Because it was difficult to assess the material in isolation, reference to other involved factors such as the teacher, the student and the teaching/learning environment was occasionally made

Mobile augmented reality is growing rapidly because of the growth of smartphones. Due to the portable

nature of smartphones, mobile augmented reality devices have become the most widely deployed consumer

augmented reality display device and show promise for becoming the first commercial success for augmented

reality technologies. The role of the user is identified and forwarded to the respective module. Cognitive

engagement and interactivity are the main two factors of influenced learning where the engagements are focused in

Learnability identification module. When a common, single optical tracking platform is available the reachability

and performance can also be increased without affecting the efficiency, which will be done in AllinoneAR Module.

An integrated framework consisting of three above stated modules is proposed in this paper

l security perspective of Cloud computing with the aim to highlight the problem from the cloud stakeholders' perspective, and the cloud service delivery models perspective. The paper aims also to introduce the mechanisms used to secure cloud computing applications as well as to compare some providers of cloud computing field with each other in general and security aspects.