Tea flavonoids and polyphenols are well known for their extraordinary antioxidant activity which is considered important for anti-aging processes in animals. This study evaluated the anti-wrinkle effects of three different kinds of tea (Camellia sinensis) water extracts (CSWEs) including green, white, and black teas using a photoaged hairless mouse model. Data showed that the CSWE-treatment gre...

introduction autologous plasma-rich platelet (prp) is a human platelet concentrated product which is in low volume of plasma. using prp in rejuvenation and resolution of some cosmetic problems has been already popular in many countries and also in iran. as no study performed in this field in iran and regarding the high prevalence of using prp in society with no validate references in the case o...

This paper considers an idealised solar sail consisting of a uniform, elastic, isotropic square membrane that is prestressed by two pairs of equal and opposite forces applied at the corners. Two wrinkling regimes are identified. The first regime occurs for symmetric and moderately asymmetric loading; it is characterised by small, radial corner wrinkles. The second regime occurs for strongly asy...

A buckling solution and a non-linear post buckling solution were employed for the wrinkling analysis of a tensioned Kapton square membrane. The buckling solution with significantly reduced bending stiffness creates localized buckling modes accounting for the wrinkle formation in the membrane. The non-linear post buckling solution with an updated Lagrangian scheme describes the detailed wrinkle ...

Introduction Autologous plasma-rich platelet (PRP) is a human platelet concentrated product which is in low volume of plasma. Using PRP in rejuvenation and resolution of some cosmetic problems has been already popular in many countries and also in Iran. As no study performed in this field in Iran and regarding the high prevalence of using PRP in society with no validate references in the case ...

Complex composite parts, and especially curved laminated composites, are more subject to defects than flat laminates. One of the most common is presence wrinkles, which can occur in radius curvature. Wrinkle effects must be studied evaluate their influence on mechanical properties composites. In this study, a numerical model was developed take wrinkle local delamination into consideration asses...

An approach for the intelligent determination of the appeared wrinkles in the robotized handling of non-rigid materials such as fabrics is presented. A machine vision system reads the wrinkles and a robotic manipulator controller is used to eliminate the wrinkles of a fabric. The machine vision system is used in order to capture an image of the wrinkled or wrinkle-free fabric. The direction of ...

Wrinkle patterns in compressed thin sheets are ubiquitous in nature and technology, from the furrows on our foreheads to crinkly plant leaves, from ripples on plastic-wrapped objects to the protein film on milk. The current understanding of an elementary descriptor of wrinkles--their wavelength--is restricted to deformations that are parallel, spatially uniform, and nearly planar. However, most...

Graphene annulus possesses special wrinkling phenomenon with wide range of potential applications. Using molecular dynamics simulation, this study concerns the effect of boundary on the mechanical properties of circular and elliptical graphene annuli under circular shearing at inner edge. Both the wrinkle characteristic and torque capacity of annular graphene can be effectively tuned by outer b...