a nonlocal beam model based on the bernoulli–euler beam theory is presented to investigate the dynamic stability of embedded single-walled carbon nanotubes (swcnts) in thermal environment under combined static and periodic axial loads. the dynamic stability analysis is carried out by including the effects of small-scale parameter, temperature change and elastic medium. the equation of motion is...

Six RC short-limb shear walls with an L-shaped section, constructed high-strength rebar and concrete, were loaded to destruction pseudo-static loading. Experimental results discussed compared horizontal in detail. Different failure modes obtained, such as flexure-dominated for specimens aspect ratio of 2.8 2.15 bending-shear 1.75. With a decrease the ratio, ductility decreased, whereas increase...

We present the case of a 23-year-old man who consulted in the emergency department 6 days after ingesting a wooden toothpick with features of a localized peritonitis in the left upper quadrant of the abdomen. Surgical exploration revealed a perforation of the splenic flexure of the colon by the toothpick during its migration. This rare case is analysed in the light of the current literature. Th...

Linear dynamic response of simply supported nanobeams subjected to a variable axial force is assessed by Galerkin numerical approach. Constitutive behavior is described by three functional forms of elastic energy densities enclosing nonlocal and strain gradient effects and their combination. Linear stationary dynamics of nanobeams is modulated by an axial force which controls the global stiffne...

We present the case of a 46-year-old woman, with morbid obesity and a history of bariatric surgery with biliopancreatic derivation, and good postoperative evolution. One year after surgery, she presented symptoms of right upper quadrant pain of some hours duration, accompanied by fever and leukocytosis. We performed an abdominal CT with IV contrast which showed clinical indications of acute cho...

A nano-displacement sensing method for micro-opto-electro-mechanical-systems (MOEMS) is proposed. The method is based on a square attice photonic crystal (PC) made of dielectric silicon posts, mounted on a micro mechanical flexure. The flexure is fixed at one end and is free to ove at the other, to enable elastic deformations that, by being transferred to the photonic crystal array, modify its ...

This paper introduces some experimental data measured from 63 impact tests of pre−stressed strand cables. The test specimens consist seven steel wires that have a length equivalent to 100 times the outside diameter. To ensure consistency with engineering service status, cables are fully installed in specially designed device and axially pre−stretched 0% 40% ultimate bearing capacity before bein...

Abstract We develop a two-dimensional, plan-view formulation of ice-shelf flow and viscoelastic flexure. This combines, for the first time, shallow-shelf approximation horizontal (and shallow-stream on lubricated beds such as where ice rises rumples form), with treatment thin-plate demonstrate by performing two finite-element simulations: one relict pedestalled lake features that exist some deb...