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Can China Challenge the Technological Supremacy of the United States: Current Standpoint and Perspectives [PDF]

open access: yesThe Review of International Affairs, 2023
The aim of this paper is to project the future dynamics of US-China relations and assess the associated risks of bifurcation of the global economy between the two blocs.
Petar Milutinović, Goran Nikolić
doaj   +1 more source

Exploring the Potential of Elliptical Metasurfaces for Decoupling and Cloaking of Tightly Spaced and Interleaved Patch Array Antennas in 5G Applications [PDF]

open access: yesAUT Journal of Electrical Engineering, 2023
This study investigates the effectiveness of mantle cloaking in isolating two densely packed patch antenna ­arrays with close operating frequencies. The cloak used is an elliptical metasurface consisting of vertical strips on a thin dielectric layer ...
Reza Masoumi, Robab Kazemi
doaj   +1 more source

Modelling and Nonlinear Control of a Magnetically Coupled Multiport DC-DC Converter for Automotive Applications

open access: yesIEEE Access, 2021
This work presents a nonlinear control strategy for a magnetically coupled multiport dc-dc converter aimed at automotive applications. First, a behavioural dynamic model, based on averaging the power flowing among the ports, is derived.
Victor Repecho   +4 more
doaj   +1 more source

Driving mechanisms for decoupling CO2 emissions from economic development in the ten largest emission countries

open access: yesEcosystem Health and Sustainability, 2022
The significant contribution to CO2 emissions includes historically cumulative emissions in the United States, Russia, Japan, South Korea, and Germany, as well as the current increase in emerging economies, such as China, India, Iran, Indonesia, and ...
Chunci Chen, Yonglong Lu, Guizhen He
doaj   +1 more source

Deforestation triggering irreversible transition in Amazon hydrological cycle

open access: yesEnvironmental Research Letters, 2022
The Amazon is hypothesized to reach an irreversible ‘tipping point’ when deforestation slows the hydrological cycle sufficiently that tropical forest ecosystems cannot be sustained.
Xiyan Xu   +6 more
doaj   +1 more source

Decoupling Energy Consumption from Economic Growth in Beijing-Tianjin-Hebei Region from 2005 to 2019 [PDF]

open access: yesE3S Web of Conferences, 2022
As the capital economic circle in China, Beijing-Tianjin-Hebei region has experienced rapid economic development depending on a large amount of fossil fuel energy consumption in decades.
An Jingxin
doaj   +1 more source

Effective Field Theories

open access: yesParticles, 2020
This paper represents a pedagogical introduction to low-energy effective field theories. In some of them, heavy particles are “integrated out” (a typical example—the Heisenberg–Euler EFT); in some, heavy particles remain but some of their degrees of ...
Andrey Grozin
doaj   +1 more source

Decoupling the Relationships between Carbon Footprint and Economic Growth within an Urban Agglomeration—A Case Study of the Yangtze River Delta in China

open access: yesLand, 2021
Carbon footprint is emerging as an effective tool for carbon emission management, especially that from fossil energy consumption. In addition, decoupling analysis is important to keep a high pace of economic growth while reducing carbon emission and its ...
Fengsong Pei   +3 more
doaj   +1 more source

Four-Wheel Differential Steering Control of IWM Driven EVs

open access: yesIEEE Access, 2020
This paper aims to realize the four-wheel differential steering function of an in-wheel motor (IWM) driven electric vehicle (EV) with a steer-by-wire (SBW) system.
Jie Tian   +3 more
doaj   +1 more source

Decoupling with random diagonal unitaries [PDF]

open access: yes, 2017
We investigate decoupling, one of the most important primitives in quantum Shannon theory, by replacing the uniformly distributed random unitaries commonly used to achieve the protocol, with repeated applications of random unitaries diagonal in the Pauli-
Hirche, Christoph   +3 more
core   +7 more sources

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