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The fight in searching new papers and prestige from scientific community is incessant. An effective contribution for sustainable development is one of our purposes. All our researches have the potential to promote scientific knowledge and to support new policies aiming the development of new technologies from the technical, social and economic point of view, in addition to subsidize sustainable development and the quest for a better future. Thus, dissemination of knowledge, methodologies and procedures of physical phenomena scientific modeling and solutions to reach technological development is one of the groups´ goals and consequently, of this journal. In this case, this journal gradually becomes an eclectic vehicle within the limits of water resources and environment, if there are, and in addition it is interesting for the academy, considering that most part of papers come from research groups of several universities and research centers distributed in Brazil and Latin America. This edition addresses several subjects such as: the project and building of a small hydropower plant aiming to become a learning tool for teaching and training of engineering students; suitability of an existing reservoir to operate as a mini hydropower plant, according to regulatory environment of not centralized micro generation in Brazil; comparative studies of methodologies for hydraulics transient calculation and finally, studies addressing management issues of water resources.We do hope to contribute in any way in this direction. We look forward you to appreciate reading of selected papers for this edition of AJHWES. All papers must be submitted in English. In case the author wants to translate the article through the journal all costs for the translation will be charged on the account of the author. 1.Formatting articles 1.1. Article structure Subdivision -numbered sectionsDivide your article into clearly defined and numbered sections. Subsections should be numbered 1.1 (then 1.1.1, 1.1.2, ...), 1.2, etc. (the abstract is not included in section numbering). Use this numbering also for internal cross-referencing: do not just refer to 'the text'. Any subsection may be given a brief heading. Each heading should appear on its own separate line. FormatAll text of the manuscript must be located within a 170 mm by 252 mm rectangle of a white A4 page or within 170 mm by 240 mm for the letter format. The margins are given in Table 1. An example of the page format is given in Fig. 1 [ IntroductionState the objectives of the work and provide an adequate background, avoiding a detailed literature survey or a summary of the results. Material and methodsProvide sufficient details to allow the work to be reproduced. Methods already published should be indicated by a reference: only relevant modifications should be described. Theory/calculationA Theory section should extend, not repeat, the background to the article already dealt with in the Introduction and lay the foundation for further work. In contrast, a Calculation section represents a p...