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The strength of surgical knots exhibits a robust mechanism involving topology, geometry, friction, and elasto-plasticity....

We present a survey on the environmental contamination of the Alviano Lake territory (Central Italy) based on Apis mellifera ligustica samples collected in two annual samplings (2019–2020). Concentrations of 30 elements were determined in the whole bees, in the gaster, and in the body without the gaster. The study generally...

Chilean researchers explore novel approach to eco-friendly food packaging Polylactic acid (PLA) is a polymer made from renewable biomass; typically, fermented plant starches, such as corn, sugarcane, cassava, or sugar beet. In use, it exhibits similar mechanical and physical properties to some petroleum-derived polymers, but it is biodegradable – under...

Stop thinking of hiking in the rain as an accident and make it a plan. Greg Rosenke / UnsplashDon't let some scattered drops ruin your hiking plans. The post How to stay dry and safe while hiking in the rain appeared first on Popular Science....

  Learning Objectives Understand how core components of traditional automation create challenges in today’s automation environments and often are lacking in modeling, data decoupling, web-based UI and programming-language support capabilities. Learn how new automation tools bring new value to old industries by adding design sense to HMIs with a style...

In this paper, a novel bat algorithm based on the quantum computing concept and pyramid neural network (PNN) is presented and applied to the electromagnetic motor optimization problem. Due to the problems of high loss, high temperature rise and threatening motor safety, it is necessary to optimize the design of...

Structural assessment is a main concern when designing and operating any sort of offshore structure. This assessment is meant to ensure that the structural integrity is preserved along the lifespan of the asset, withstanding the worst sea-states that will be encountered and making sure that the accumulated fatigue damage will...

The traveling wave and slope amplification effects should be considered in the shaking table test of large-span structures in mountain areas. Based on the structural characteristics and site conditions of a large-span structure in a mountain area, this paper designed a high-rise steel frame structure with viscous dampers through finite...

Mammatus clouds over St Mary's Lighthouse in England. Moo. Owen Humphreys/PA Images via Getty ImagesSome clouds have weird names and funny features. You should learn them. The post A scientific guide to clouds, even the ones that look like udders appeared first on Popular Science....

This article is from The Spark, MIT Technology Review’s weekly climate newsletter. To receive it in your inbox every Wednesday, sign up here. Sitting in a booth in a hotel lobby in Brooklyn, I stared down the lineup of sliders, each on a separate bamboo plate. On the far left was...

The primary goal of this study was to investigate the formability of Nimonic 90 sheet which performs well at high temperatures and pressures, making it ideal for applications in the aerospace, processing, and manufacturing industries. In this present study, finite element analysis (FEA) and optimization of process parameters for formability...

The work focuses on the post- buckling behavior of functionally graded graphene platelet (FG-GPL)-reinforced porous thick rings with open-cell internal cavities under a uniform external pressure. The generalized rule of mixture and the modified Halpin–Tsai model are here used to evaluate the effective mechanical properties of the ring. Three types...