In this paper, homotopy perturbation and modified Lindstedt-Poincare methods are employed for nonlinear free vibrational analysis of simply supported and double-clamped beams subjected to axial loads. Mid-plane stretching effect has also been accounted in the model. Galerkin's decomposition technique is implemented to convert the dimensionless equation of the motion to nonlinear ordinary differ...

issues on differences between men and women have always been a source for dispute and different approaches in the available literature on women. some have seen these differences resulting from the dissimilar socialization of men and women in family and society. while some put more emphasis on the physiological differences and rely on theological interpretations, some others consider them as ess...

conclusions the odscp has many advantages over the other type of plates. it can help the surgeon to operate with a relaxed mind and it is advisable for high tibial medial open wedge osteotomies. results the mean follow-up time was 9.33 ± 1.87 month. the average age was 45.13 ± 7.25 years. three patients were male and 13 patients were female. the lysholm score showed a significant difference bef...

objectives: this study was designed to determine the effects of volar-dorsal wrist/hand immobilization splint on upper extremity motor components and function of stroke patients. methods: fourteen patients were participated in this study. the patients were selected based on the inclusion and exclusion criteria, and were given the splint after a primary evaluation. they were re-evaluated after o...

Newton’s laws consist of “the law of inertia”, “the law of motion”, and “the law of action and reaction.” The first law depicts that if there is no external effect, an object must be still or moving at a constant velocity, which leads to a concept of the net force. The second law quantifies the force in terms of acceleration and mass of the object. The third law illustrates the existence of the...

In this note, small amplitude free vibration of a double-beam system in presence of inner layer nonlinearity is investigated. The nonlinearity is due to inner layer material and is not related to large amplitude vibration. At first, frequencies of a double-beam system with linear inner layer are studied and categorized as synchronous and asynchronous frequencies. It is revealed that the inner l...

results the results of this study showed high reliability and validity of smartphone in regarding ug with icc > 0.95. the highest reliability for both methods was in elbow supination and the lowest was in the elbow flexion (0.84). objectives the study was designed to compare the smartphone inclinometer-based app and ug in evaluation of rom of elbow. materials and methods the maximum rom of elbo...

background: osteoarthritis is one of the most common diseases in synovial joints. dueto high loading forces during weight-bearing activities, the knee joint is prone to degenerative processes. this study aimed to compare the flexibility of muscles around the knee joint in patients with knee osteoarthritis with those of healthy individuals. methods: twenty-three women with bilateral knee osteoar...