Results 71 to 80 of about 597,594 (309)

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han   +5 more
wiley   +1 more source

Do Crises Tear the Fabric of Oil Trade? [PDF]

open access: yes
In 1990, Iraq invaded Kuwait, touching off an economic, financial, diplomatic, and military crisis associated with a tremendous spike in oil prices and recession in OECD and oil-importing developing countries. But was the Gulf Crisis a disruption? Did it
Weiner, Robert
core  

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz   +3 more
wiley   +1 more source

Introduction : pétropolitiques, rente et extractivisme dans les pays des Suds

open access: yesRevue Internationale des Études du Développement, 2023
Paula Vásquez Lezama†    +3 more
doaj   +1 more source

Assessing the extent and persistence of major crisis events in the crude oil market and economy: evidence from the past 30 years

open access: yesHumanities & Social Sciences Communications
This study investigates the extent and persistence of major crisis events in the crude oil market and economy and searches for general rules of event impact.
Qi Zhang   +3 more
doaj   +1 more source

Is the financial crisis causing a recession? [PDF]

open access: yes
The U.S. entered a recession in December 2007. Coming in train with a foreclosure crisis that began in late 2006 and its associated financial crisis that began in August 2007, there is a tendency for analysts to attribute the recession to the financial ...
Tatom, John
core   +1 more source

Towards a new multilateral energy architecture? [PDF]

open access: yes, 2012
From climate change over peak oil to the geopolitical scramble for the Arctic, there are ample signs that a global energy crisis is unfolding. The sheer scale and urgency of this looming crisis calls for international coordination.
Van de Graaf, Thijs
core   +1 more source

Cool Kitchen: Processing Starch and Eggshell Powder into Sustainable Coatings for Passive Daytime Cooling

open access: yesAdvanced Functional Materials, EarlyView.
A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song   +3 more
wiley   +1 more source

Chemoselective Sequential Polymerization: An Approach Toward Mixed Plastic Waste Recycling

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by biological protein metabolism, this study demonstrates the closed‐loop recycling of mixed synthetic polymers via ring‐closing depolymerization followed by a chemoselective sequential polymerizations process. The approach recovers pure polymers from mixed feedstocks, even in multilayer formats, highlighting a promising strategy to overcome a
Gadi Slor   +5 more
wiley   +1 more source

The Economic Crisis in Russia: Fragility and Robustness of Globalisation [PDF]

open access: yes
It is now clear that the global economic crisis has hit the Russian economy. The resulting shock clearly shows not only the global economic imbalance but also the distinct characteristics of emerging Russian markets.
Satoshi Mizobata
core  

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