Results 161 to 170 of about 3,964,042 (388)

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

open access: yesAdvanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

War and peace in USA-China trade

open access: yesKöz-gazdaság, 2020
Conceptually, the Trump administration’s mercantilist trade policy, which narrowly focuses on the balance of trade in goods, is deeply flawed, ignoring the deeper macroeconomic fundamentals of the structural deficit, namely America’s broad savings ...
István Dobozi
doaj  

Trade, conflicts and political integration : explaining the heterogeneity of regional trade agreements [PDF]

open access: yes
This paper investigates the determinants of the shape of regional trade agreements (RTAs). Because the world is constituted by independent political entities, international trade flows take place in a system where property rights are unsecured and RTAs ...
Vincent Vicard
core  

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

open access: yesAdvanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He   +5 more
wiley   +1 more source

TRADE WAR OR NEGOTIATIONS: WHERE ARE WE HEADING? [PDF]

open access: yes
International Relations/Trade,
Mayer, Leo V., Rossmiller, George Edward
core   +1 more source

Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites

open access: yesAdvanced Functional Materials, EarlyView.
Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles   +16 more
wiley   +1 more source

Trade Resilience of Central and Eastern European Countries to the Shock Caused by the Russia–Ukraine War

open access: yesForum Scientiae Oeconomia
The instability of the world economy in the 21st century demands that more interest be paid to the nature of emerging disruptions, their effects, and the ways to ensure the appropriate reactions of affected parties. Research on the economic resilience of
Joanna Kos-Labedowicz, Sylwia Talar
doaj   +1 more source

China's Long-Term International Trade Statistics: By Commodity, 1952-1964 and 1981-2000 [PDF]

open access: yes
International trade has been a key engine driving Chinese economic growth in recent decades. Yet, long-term analyses of China's trade are still difficult because the country's trade statistics for the post-war period up to the mid-1980s have many ...
Kozo Kiyota, Kyoji Fukao, Ximing Yue
core  

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

open access: yesAdvanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

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