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Aims: Achieve sustainable agricultural production, keeping soil fertility, and reducing environmental hazards, are the main challenges to providing food security in countries with growing populations. In the direction of sustainable crop production, the purpose of this study was to examine the impact of municipal solid waste (MSW) compost with nitrogen fertilizer (N-fertilizer) on wheat yield.
Materials & Method: The nine treatments were organized by a randomized complete block design with three replicates. The following were the treatments: N-fertilizer at 0, 100, and 200 kg.ha-1; and composting waste at 0, 10, and 20 t.ha^-1. At maturity, the components of wheat yield were measured.
Findings: The experiment's results showed that the effect of MSW compost with N-fertilizer and their interaction on grain yield and biological function were significant. The highest 1000-grain weight (40.00 gr) and biomass yield (13833 kg.ha^-1) were obtained using 20 t.ha^-1 of compost with 200 kg.ha^-1 N (C20N200 treatment) while the highest harvest index (HI)(52.7) and grainyield (7000 kg.ha^-1) were in treated soil with 20 t.ha^-1 of compost and 100 kg.ha^-1 N (C20N100 treatment). Also, the highest grain protein (11.93 %) was in treated soil with 10 t.ha^-1 of compost and 200 kg.ha^-1 N (C10N200 treatment).
Conclusion: The results showed that applying these treatments leads to increased wheat yield, indicating that MSW compost and N-fertilizer can increase plant growth. The main issues with using MSW compost in agricultural soils are the presence of soluble salts and the buildup of macro-micronutrients.

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In this paper a methodology for design optimization of foundation of structures has been proposed. The structural model comprises three different finite elements, i.e. plate elements for mat foundation, solid elements for soil and some compression-only members for connection of foundation to soil. To facilitate the optimization algorithm, a 3D analysis is performed in the elastic range under one design loading. Due to numerous finite elements and accordingly considerable number of design variables, the classical topology optimization algorithms become inefficient for solution of the problem. Therefore in this paper an innovative topology optimization algorithm, which does work based on efficiency of foundation elements, is proposed. This new algorithm cuts out the foundation elements that do not bear (or bear low value) compression under design load(s). The overall optimization methodology consists of two phase optimization: namely topology optimization and size optimization. After every topology optimization, an analysis is done and a size optimization algorithm is used to proportion the thickness of the foundation and corresponding reinforcement. The consequent topology and size optimization processes are repeated until no enhancement is obtained in the design. The capabilities of the proposed method have been shown by four design example.

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In this article, the Flutter speed of a composite wing carrying two power engines is analyzed. The wing is modeled as a beam with two degrees of freedom, which is a cantilever, with two thrust as a follower force and mass of the engines. Wagner theory has been used for aerodynamic model and using the assumed mode, the wing dynamic equations of the motion has been achieved by Lagrange equations. Linear flutter speed according to the eigenvalues of the motion equations was calculated. In order to valid the results of present work, at first composite wing assumed without engines and then wing modeled with two engines that results are compared with published results and good agreement has been observed. Composite wing has been analyzed as one layer and also laminate layers, and effect of variables such as follower force, engines mass, position of engines and number of layers has been investigated and the results show that with increase in mass and force of engines and also with increases distance between engine and wing root, flutter speed decreases and with decrease distance between engines and leading edge, flutter speed increases.

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In this research, we try to study and compare the mythical structure of Ebrahim Adham's story with an analytical-comparative method and with a mythological approach based on Vogler's travel pattern, and show the similarity of mystical memoirs with the author's travel pattern. The result of this study shows that the story of Ebrahim Adham is completely consistent with the stages of Vogler's model. After three stages of invitation, Ebrahim Adham enters the realm of wonders and after the stage of purification and cultivation in the womb of the cave, he experiences a rebirth. As a result of enduring difficult trials, he renews his life and returns to the heart of society in the stage of returning with the elixir of spirituality.