the present paper investigates the advantages of a new class of composite grid structures over conventional grids. thus far, a known grid structure such as orthogrid or isogrid has been used as an orthotropic layer with at most in-plane anisotropy. the present laminated grid is composed of various numbers of thin composite grid layers. the stiffness of the structure can be adjusted by choosing ...

In this study, a total number of 20 centrifuge tests were carried out to investigate monopile behaviour under lateral cyclic loading. The instrumented model pile simulates an offshore wind turbine foundation with embedment ratio 5 installed in sand layers two relative densities 80% and 50%. influence the directional characteristic amplitude load on was studied. data analysis focused accumulatio...

Background: Studies on how the shoe insole hardness regulate joint stiffness and transfer energy in the lower extremity during jump landing are scarce. The current study aimed to determine the effectiveness of shoe insole changes in joint power and stiffness during landing from jumps. Methods: Fifteen healthy male athletes volunteered to perform jump-landing in various shoe insole conditions. ...

When the out-of-plane stiffness of a beam is remarkably lower than the in-plane stiffness, the lateral-torsional buckling occurs. In this study, the behavior of mono-symmetric I-beams with discrete torsional and lateral bracings under the concentrated moment is investigated using the finite element analyses. Then, based on the numerical analyses, equation for the stiffness requirement is propos...

background and aims: osteoarthritis is one of the most common arthritis in elderly. we evaluated to compare the effect of topical application of eugenia caryophylata extract and topical diclofenac in primary knee osteoarthritis.methods: this randomized double-blind clinical trial study was carried out upon 105 patients with primary knee osteoarthritis. patients were selected randomly and divide...

BACKGROUND/AIMS To assess the accuracy of transient elastography (TE) in the prediction of esophageal varices (EV). MATERIALS AND METHODS The literature search was conducted by using PubMed, EMBASE, Web of Science, and CENTRAL on The Cochrane Library without time or language restrictions. Terms used were "FibroScan," "transient elastography," "stiffness," and "esophageal varices." The pooled ...

Two-high screw piercing of steel 50 billets was performed at feed angles 15 and 18 degrees. Piercing stopped 10–12 mm distance from the rear end billet. Axial fracture registered degrees angle in front mandrel nose, while no observed angle. for similar parameters simulated using DEFORM finite element analysis software, several criteria were used prediction. Ayada criterion ineffective, as evide...

Abstract A multidirectional damage model was proposed to predict fatigue evolution and final failure of composite laminates in this paper. characterization for established characterize the influence three main modes on damaged mechanical behavior at micro–macro level. The also based mechanics stiffness degradation by means model. Then, a relationship between residual strength introduced, from w...

background optimal use of the clinical examination aids physicians in identifying patients at risk for meningitis. the low specificity of the meningeal signs may be due to the presence of cervical arthritis and spondylosis. one of the most sensitive maneuvers in the diagnosis of meningitis is jolt accentuation of headache. patients and methods a descriptive research was performed on suspected a...

Nonlinear static procedure (NSP) is a common technique to predict seismic demands on various building structures by subjecting a monotonically increasing horizontal loading (pushover) to the structure. Therefore, the pushover analysis is an important part of each NSP. Accordingly, the current paper aims at investigating the efficiencyof various algorithms of lateral load patterns applied to the...