Marcus Brown Department of Mechanical and Materials Engineering, Queen’s University, Kingston, Canada Background Bracing is a treatment option for medial knee osteoarthritis [1] that unloads the medial knee through the application of an external moment (brace moment) [2]. In theory, the brace moment is designed to reduce the total external adduction moment, as disease severity and external addu...

BACKGROUND Lateral compartmental osteoarthritis (LCOA), a major complication after medial mobile-bearing unicompartmental knee arthroplasty (UKA), is highly associated with the increased stress of the lateral compartment. This study aimed to analyze the effects on the stress and load distribution of the lateral compartment induced by lower limb alignment and coronal inclination of the tibial co...

Bioresorbable plates have recently been used with anterior cervical discectomy and fusion (ACDF). Compared with metallic plates, bioresorbable plates provide segmental stabilization with minimal imaging artifact, eventual resorption, and increased load sharing. The objectives of the present study were to determine whether a bioresorbable plate can withstand simulated physiologic static and cycl...

In many species of salamanders, pigment cells derived from the neural crest give rise to a horizontal stripe pattern in hatchling larvae. A defining element of these horizontal stripe patterns is a region over the middle of the myotomes that is relatively free of melanophores. This study shows that formation of a "melanophore-free region" and horizontal stripe pattern in Ambystoma tigrinum tigr...

BACKGROUND The default mode network (DMN) is a set of brain regions typically activated at rest and suppressed during extrinsic cognition. Schizophrenia has been associated with deficient DMN suppression, though the extent to which DMN dysfunction predates psychosis onset is unclear. This study examined DMN suppression during working memory (WM) performance in youth at clinical high-risk (CHR) ...

16. Abstract Four scale microconcrete model bridges were tested. Experimental variables included span, skew angle, stiffness, location and number of diaphragms. Service load level behavior was studied under static, cyclic and impact loads with successive removal of diaphragms. Behavior at overload and ultimate load conditions was documented from ultimate static and impact load tests. Characteri...

Design pattern formalization is aimed at encouraging the use of design patterns during the design phase. Many approaches focuses on providing solutions with a graphical notation and complementary text, typically composed by a static and a dynamic definitions. The weak point is the lack of flexibility when customizing the generic solution to the specific context of use. This paper proposes a cri...

the aim of present study is to investigate the kinematics of tool-workpiece’s relative movement in conventional and ultrasonic-vibration assisted turning (uat). the kinematic analysis of uat shows that the movement of cutting tool edge relative to the workpiece resulted from the cutting speed, feed speed and tool’s vibration affects the lateral machined surface of workepiece and leaves a repeat...

This study investigates the elastoplastic deformation behaviour of a motorcycle frame under quasi-static mechanical loading. We present novel test rig to analyse integrity four different load configurations. These configurations reproduce longitudinal forces, lateral torques and bending moments that act on in normal operation as braking, acceleration or cornering. Additionally, represent loads ...