Although it is known that aging plays an important role in the incidence and progression of cervical spondylotic myelopathy (CSM), the underlying mechanism is unclear. Studies that used fresh bovine cervical spinal cord report the gray matter of the cervical spinal cord as being more rigid and fragile than the white matter. However, there are no reports regarding the association between aging a...

Cotton fabric was exposed to low-pressure capacitively coupled plasma enhance the adsorption and adhesion of fragrance microcapsules (FCM). Two plasma-forming gases, namely oxygen (O2) nitrogen (N2), were investigated. The untreated plasma-treated samples investigated for their morphological changes by scanning electron microscopy (SEM), mechanical properties (breaking force, elongation, flexur...

The tensile properties of materials, such as the ultimate tensile strength, yield strength, elongation and elastic modulus, are very important factors for engineering designs. However, it is not easy for students to understand and evaluate the tensile properties of materials. In this study, a small and handy tensile testing machine was designed to help students conduct tensile tests in class us...

The main objective of this research was to study the influence an enzymatic treatment process date palm fibers on their chemical and morphological properties as well physical mechanical characteristics composites filled with raw treated fibers. To end, three extraction approaches were considered (a combination xylanase pectinase enzymes, enzymes followed by a one enzyme xylanase). Chemical anal...

Abstract 3D printing offers a significant advantage in the production of hollow parts through use infill patterns. However, these patterns are typically generated by slicer software with primary focus on providing basic structural rigidity, while neglecting other important criteria. This paper presents simplified scaling technique for fused deposition modeling (FDM) and evaluates its effectiven...

The structural rigidity property, a generalization of Laman's theorem which characterizes rigid bar frameworks in 2D, is generally considered a good heuristic to detect rigidities in a geometric constraint satisfaction problem (GCSP). The gap between rigidity and structural rigidity essentially resides in the fact that structural rigidity is not a geometric property. In this article, we propose...

OBJECTIVE (1) To determine the brain connectivity pattern associated with clinical rigidity scores in Parkinson's disease (PD) and (2) to determine the relation between clinically assessed rigidity and quantitative metrics of motor performance. BACKGROUND Rigidity, the resistance to passive movement, is exacerbated in PD by asking the subject to move the contralateral limb, implying that rigi...