Results 111 to 120 of about 35,150 (210)

Vaccine Hunting: Balancing Strategic Independence, Cooperation and Multilateral Obligations in Scandinavian COVID‐19 Vaccine Diplomacy

Global Policy, EarlyView.
ABSTRACT How do states navigate the balance between multilateral obligations, bilateral cooperation and strategic independence during global crises? This article provides an in‐depth empirical analysis of the diplomatic efforts deployed by Denmark and Norway to secure vaccine access during the COVID‐19 pandemic.
Antoine de Bengy Puyvallée, Katerini Tagmatarchi Storeng, Adam Moe Fejerskov   +2 more
wiley   +1 more source

Global harms, local profits: How the uneven costs of natural disasters affect support for green political platforms

American Journal of Political Science, EarlyView.
Abstract Large‐scale fires are becoming increasingly common due to climate change. While conventional wisdom suggests that firsthand experiences with natural disasters foster green coalitions by raising awareness of environmental degradation, we propose an alternative view: Natural disasters can heighten the perceived trade‐off between economic ...
Silvia Pianta, Paula Rettl
wiley   +1 more source

Creep investigation of GFRP RC Beams - Part A : Literature review and experimental Study

Journal of Materials and Engineering Structures, 2014
GFRP composite bars are excellent alternative to steel bars for reinforcing concrete structures in severe environments. However, studies on creep phenomenon of GFRP reinforced concrete structures are limited.
masmoudi abdelmonem, mongi benouezdou, mohamed beldi, André Weber   +3 more
doaj  

Field Evaluation of Elliptical Fiber Reinforced Polymer Dowel Performance, June 2003 [PDF]

, 2003
Fiber composite materials (FRP) are making an entry into the construction market in both buildings and pavements. The application to pavements comes in the form of joint reinforcement (dowels and tie bars) to date.

core  

Continental‐wide prioritization of protected areas to address global and habitat‐specific goals for avian biodiversity conservation

Conservation Biology, EarlyView.
Abstract The United Nations and European Union have set ambitious conservation goals to halt and reverse declines in biodiversity by protecting 30% of land and sea areas by 2030. Effective conservation planning requires evidence‐based spatial prioritization to maximize the coverage of species within designated protected areas.
Yanjie Xu, Diego Pavón‐Jordán, Tyler Hallman, Tristan R. M. Bakx, Lluís Brotons, Sergi Herrando, Alison Johnston, Brett K. Sandercock, Thomas Sattler, Alaaeldin Soultan, Vitalie Ajder, Dawn E. Balmer, Brian Burke, Thiago Cavalcante, Tomasz Chodkiewicz, Ruud P. B. Foppen, Anthony D. Fox, Verena Keller, Tatiana Kornienko, Peter Knaus, Heini Kujala, Åke Lindström, Qenan Maxhuni, Károly Nagy, Ingar Jostein Øien, Tomas Pärt, Dimitrije Radišić, Draženko Z. Rajković, Iván Ramirez, Paul Shimmings, Karel Šťastný, Thomas Vikstrøm, Tomasz Wilk, Aleksi Lehikoinen   +33 more
wiley   +1 more source

Tensile Properties of Flax FRP Composites

, 2017
In this study, the effects of the polymer matrix properties and shape of test specimens on mechanical properties of flax fiber-reinforced polymer (FRP) composites are examined. A total of 30 flax FRP coupons were fabricated using three different types of
Betts, Dillon, Fam, Amir, Sadeghian, Pedram   +2 more
core   +2 more sources

Creep investigation of GFRP RC Beams - Part B: a theoretical framework

Journal of Materials and Engineering Structures, 2014
This paper presents an analytical study about the viscoelastic time-dependent (creep) behavior of pultruded GFRP elements made of polyester and E-glass fibres.
masmoudi abdelmonem, mongi benouezdou, mohamed beldi, André Weber   +3 more
doaj  

Bending behavior of concrete-filled FRP wound tubular arches with internal FRP bars

Scientific Reports
Conventional reinforced concrete arches are susceptible to corrosion in underground environments, leading to reduced durability. This study proposes concrete-filled FRP (Fiber-reinforced polymer) wound tubular arches with internal FRP bars to achieve ...
Benben Li, Zhenyuan Yang, Yujun Qi, Zhenglong Zhou, Guowei Wang   +4 more
doaj   +1 more source

Effectiveness of FRP stirrups in concrete beams subject to shear

, 2014
It can be shown theoretically that two key parameters that govern the shear strength of FRP reinforced concrete structures are the angle of inclination of the diagonal struts, θ, and the strength of the FRP stirrups, fv.
Ascione L., Razaqpur A. G., Spadea S.
core  

Water Released From Vessel Embolism May Temporarily Halt Further Embolism in Tropical Dipterocarp Trees

Plant, Cell &Environment, EarlyView.
ABSTRACT The formation of air bubbles in the xylem, known as embolism, reduces hydraulic conductivity and can ultimately lead to catastrophic failure of a tree's water transport system. When a vessel embolises, it releases water into the surrounding xylem tissue.
Arne Scheire, Paulo Roberto de Lima Bittencourt, Palasiah Jotan, Jehová Lourenço Jr., Radim Matula, Martin Svátek, Reuben Nilus, Mohd. Aminur Faiz Bin Suis, Rolando Robert, Steven Jansen, Maurizio Mencuccini, Karina Williams, Tommaso Jucker, Lindsay F. Banin, David F. R. P. Burslem, Lucy Rowland   +15 more
wiley   +1 more source