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As usual, The Academic Society Journal is always looking for partnerships and initiatives to increase its reach. One of the goals of our journal and of our society as a whole is to enable the scientific community to publish their research without fees. The Open Access format has brought several benefits to the popularization of science since its emergence, bringing quality knowledge to students and institutions that do not have access to paid content. In this issue, we would like to introduce our new editorial member, Prof. Mauro Machado de Oliveira, Chief Editor of REGRASP Journal (seer.spo.ifsp.edu.br/index.php/regrasp). Thus, crowning our partnership, we hope that other initiatives can continue forming links and creating networks that facilitate, as always, the daily lives of those who write, those who review and those who read the papers, not the publishers' profits. Our doors are always open!

The working temperature influences the use of solar energy by photovoltaic modules, and the increase in temperature causes a decrease in power in photovoltaic generation in the various semiconductor materials used in commercial photovoltaic cells. The article lists values of power change coefficients of photovoltaic modules in relation to temperature for the main materials used commercially found in a selection of tests carried out on photovoltaic modules. The values found in the works presented some divergence in the variation of the power in relation to the working temperature.

Nickel-based superalloys have limitations for use at temperatures above 600 °C. For this reason, protective coatings can be used as barriers to avoid both nucleation and crack propagation. Thus, to evaluate the mechanical properties at high temperatures of plasma nitrided samples of the INCONEL 625 superalloy, tensile and creep tests were performed on samples with and without treatment. In the tensile tests at temperatures of 200 to 700 °C the material showed an oscillation in the tension values from the beginning of the plastic deformation. This behavior of the serrated strain-strain curve may be associated with the diffusion of an interstitial solute or by the diffusion of substitutional atoms or by dynamic strain aging effect. At 600 °C, the increase in strain rate promoted an increase of the amplitude and oscillation frequency of the stress. Under levels of intermediate of elevated stresses, the dominant creep mechanism of the Inconel 625 alloy was like that of many pure metals and alloys of solid solutions which is by slippage of dislocations.

​Topological optimization is a numerical analysis technique used in many applications such as additive manufacturing, casting, industry, plastic automotive and others. Educational algorithms have been developed, mostly two-dimensional configuration and with well-defined domains, which clearly describe the various possibilities of boundary conditions found in structures. The aim of this study is to evaluate the domains of topological optimization in some two-dimensional cases and contribute for the training and insertion of students in research activities. For the optimization of the topology, pre-established educational codes were used, such as sigmund’s code, the finite element theory to define the meshes and generate the matrix with displacements and supports, through software such as MATLAB®. From the analysis of these domains, it was possible to verify that some educational algorithms do not work correctly as they should. The results of this study provided knowledge about the first optimization algorithms and the Evolution of their approaches to design the details of the numerical aspects of the code and its equations. Due to the facts mentioned it is concluded that it is important to know in detail the domains used in two-dimensional educational algorithms and to what extent each of the algorithms facilitates work with a specific boundary condition. In addition, the evaluation of two-dimensional algorithms and optimization of the approaches studied helped to consolidate and expand knowledge about technological development and software for analysis and simulations.