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The Egyptian state establishes many schools in order to meet the needs of the numbers of students and achieve the quality of education,; The achievement of thermal comfort in the school classroom is most important criteria and requirements for achieving the objectives of basic education during the treatment of the elements of the building envelope of the school classrooms, The research paper shows the role of technological development and its impact on building materials and thus its effect on energy efficiency, which is one of the most important requirements for the environmental design of buildings and the most important criteria for sustainable architecture.The research deals with the problem of energy consumption in classroom buildings in Qena Governorate, as a result of the inefficiency of the glass used in the openings in the building envelope. Therefore, the main objective of this research is to improve the energy performance of school classrooms by using nanotechnology treated glass in the building envelope of school classrooms in Qena Governorate , An applied study was made using computer simulation with the Design Builder v 6.0 program, which is one of the internationally approved programs in the field of environmental analysis of buildings due to the accuracy of the results.The results indicate that the use of glass treated with nanotechnology double low-e 6 mm and 13 mm air to improve the energy efficiency of school classrooms in Qena governorate by rates of more than 30% over the base case of the (South-west) orientation.

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Abstract-This paper represents the analysis and study of selecting the highest power node in the wireless sensor networks as a cluster head. The study assumes that the sensors are fixed and uniformly distributed, and the position of the sink and the dimensions of the sensor are known. The paper introduces a proposed protocol to prolong the time interval before the death of the first node (stability period), which is critical for many applications. The aim of this paper is also to improve the performance of the network by increasing the overall throughput of the network. The proposed protocol selects the cluster head depending on the power level of the node which is the most important factor of the behavior of the nodes. The simulation is made by MATLAB, and the results are compared with two other protocols, LEACH and SEP. It is found that the selection of the highest power node as a cluster head increases the stability region and throughput of the network compared to other protocols.