(Design Criteria for Silicone Rubber Insulators (Composite Insulator

Insulators are used to perform both the electrical and mechanical functions. As such the design of such materials should be made such that the insulators can perform the functions optimally without failing or break. Insulators are used to provide mechanical support as well as prevent the flow of electricity that is not required for the transmission of high voltage electricity. This research paper aims to discuss the design criteria for silicone rubber insulators. The method used in the study involved includes the review of literature from various sources regarding design standards for silicone rubber insulators. The results indicate the electrical and mechanical integrity are some of the most important aspects of insulators.  The composite insulators can thus be affected by elements such as chemicals, temperature, sunlight and humidity. The results of the study can be used to design successfully, construct and install reliable composite insulators to be used in high voltage electricity transmission lines.&nbsp

Techniques Study for apply Control on Nonlinear Systems and the Concept of the Sliding Mode Control (SMC)

المبادئ الأساسية لهذه الورقة هو دراسة بعض التقنيات المستخدمة لتطبيق التحكم على الأنظمة غير الخطية .و يتم تطبيق هذه الطرق على ثلاثة أمثلة غير خطية مختلفة من أجل التحقق من أداء هذه التقنيات. وكذلك  تهدف هذه الورقة إلى فهم مفهوم التحكم في وضع الانزلاق وهناك ثلاث مشاكل يجب حلها لهذه الورقة وهي  أولاً  التحكم في وضع الانزلاق ، الإحماء  و الثاني في وضع الانزلاق لمعادلة فان دير بول (VDP) ، والثالث تحكم  (MIMO ) للذراع المستوي ثنائي الوصلة. Abstract:             The basic principles of this paper are some techniques that used to apply control on nonlinear systems. These methods were applied to three different nonlinear examples in order to check the performance of these techniques. Moreover, this paper is to understand the concept of the sliding mode control and there are three problems that we should solve for this paper first Sliding Mode Control Warm-Up, second Sliding Mode control for the van der pol Equation (VDP), and third MIMO control of two-link Planar Arm