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In this paper, we obtain the approximate solutions for optimal control of linear systems, which have a quadratic performance index. The differential transform method (DTM) is applied for solving the extreme conditions obtained from the Pontryagin’s maximum principle. The differential transform method is one of the approximate methods, which can be easily(More)
OBJECTIVES Lymphatic complications, lymphocele and lymphorrhea being the leading, are generally encountered after vascular interventions and surgeries. The present study aimed to evaluate the outcomes of vacuum-assisted-closure (VAC) therapy, which we frequently prefer as the first-choice treatment for such complications. MATERIALS AND METHODS Among(More)
Objective: The present study was conducted to evaluate invasive and noninvasive diagnostic methods for detection of Helicobacter pylori (H. pylori) in patients admitted with dyspeptic complaints and to compare sensitivities and specificities. Method: Sets of four gastric biopsy specimens were obtained from a total of 126 patients included in the study. The(More)
In this paper, we apply He's semi-inverse method to establish a variational theory for the Boussi-nesq system. Based on this formulation, a solitary solution can be easily obtained using Ritz method. Moreover , the results are also compared with He's homotopy perturbation method, Liao's homotopy analysis method and homotopy padé method. The results reveal(More)
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