Results 71 to 80 of about 528 (267)

Neural Network‐Based Permittivity Engineering of Magnetic Absorbers for Customizable Microwave Absorption

Advanced Science, EarlyView.
A neural network‐enabled permittivity engineering paradigm is introduced, transcending traditional trial‐and‐error design. By decoupling electromagnetic parameters and screening a high‐throughput feature space, an ultrathin (1.0 mm) magnetic absorber is inversely designed, experimentally achieving a superior and customizable 5.1 GHz bandwidth and ...
Chenxi Liu, Jinzhe Li, Sen Li, Zhongqiu Guo, Yao Chen, Tian Li, Renchi Qin, Jiaxu Sun, Yongxi Lu, Fanbin Meng   +9 more
wiley   +1 more source

Poland and Russia at the turn of XXI century. Between a Liberal Illusion and Imperial Realism

Revista UNISCI, 2016
In this article the author examines how Poland and Russia perceive international relations and the objectives of foreign policy using specific research approaches. Later, the article tries to illustrate the incompatibility of the ways these two countries
Adriana Dudek
doaj  

Multimodal Wearable Biosensing Meets Multidomain AI: A Pathway to Decentralized Healthcare

Advanced Science, EarlyView.
Multimodal biosensing meets multidomain AI. Wearable biosensors capture complementary biochemical and physiological signals, while cross‐device, population‐aware learning aligns noisy, heterogeneous streams. This Review distills key sensing modalities, fusion and calibration strategies, and privacy‐preserving deployment pathways that transform ...
Chenshu Liu, Haolin Fan, Minwoo Kim, Tong Zhou, Pinyi Yang, Lingdi Zhao, Yiran Wang, Ziyuan Che, Chia‐Wei Liu, Bingbing Li, Yangzhi Zhu   +10 more
wiley   +1 more source

Beyond the Non‐Hermitian Skin Effect: Scaling‐Controlled Topology from Exceptional‐Bound Bands

Advanced Science, EarlyView.
ABSTRACT We establish a novel mechanism for topological transitions in non‐Hermitian systems that are controlled by the system size. Based on a new paradigm known as exceptional‐bound (EB) band engineering, its mechanism hinges on the unique critical scaling behavior near an exceptional point, totally unrelated to the well‐known non‐Hermitian skin ...
Mengjie Yang, Ching Hua Lee
wiley   +1 more source

The Changing U.S. - Africa Relations: From Offshore Balancer to Offensive Realism?

Journal of International Relations and Foreign Policy, 2021
The inauguration of Barack Obama as the 44th president of the United States was positively received in US and abroad as a welcome opportunity for change. Yet, whether the shift to a more critical tone will translate into a significant change to the substance of US-Africa policy remains a matter of concern. The first-ever U.S.
openaire   +1 more source

On the Ordering Mechanism of Cu+ in 2D van der Waals Multiferroic CuCrP2S6

Advanced Science, EarlyView.
Temperature‐dependent X‐ray single‐crystal diffuse scattering measurements of CuCrP2S6 in the (H, K, 0) plane reveal the gradual emergence and strengthening of short‐range order upon cooling from 230 to 170 K. At intermediate temperatures, diffuse features become pronounced and eventually lock into sharp incommensurate satellite reflections, indicating
Jiasen Guo, Yongqiang Cheng, Michael A. Susner, Ryan P. Siebenaller, Zachary Morgan, Feng Ye   +5 more
wiley   +1 more source

Examining the Geoeconomic Implications of China’s Belt and Road Initiative for US Preeminence in the Horn of Africa

China Quarterly of International Strategic Studies
Focusing on the US–China rivalry in the Horn of Africa (HoA), this study investigates the geoeconomic implications of China’s Belt and Road Initiative (BRI) on long-standing US preeminence, using offensive realism as a theoretical lens.
Tewodros Woldearegay, Maru Mathewos Erbeto, Dereje Fikre Jima, Solomon Nigussie Worku   +3 more
doaj   +1 more source

Offensive realism, differentiation theory, and the war in Ukraine

International Politics, 2018
In this article, I shall demonstrate that several of the arguments made in favour of an offensive realist explanation of Russian actions in Ukraine as part of a power balancing process are inconsistent both with available empirical knowledge of the conflict in Ukraine and with the structural logic postulated by offensive realist theory itself.
openaire   +2 more sources

Injectable Porous Microspheres Loaded With Biomimetic Preconditioned Bone Marrow Mesenchymal Stem Cell‐Derived Exosomes for Vascularized Bone Regeneration

Advanced Science, EarlyView.
Schematic illustration of injectable PDA‐modified GelMA microspheres loaded with BioPre‐Exos for vascularized bone regeneration. ABSTRACT Critical‐sized bone defects remain a highly challenging clinical problem due to insufficient intrinsic self‐healing capacity.
Lijun Li, Hao Zhang, Lingtong Sun, Yingfeng Su, Yang Xu, Jian Huang, Jingchao Wen, Jinjin Zhu, Jianjun Ma, Wenbin Xu   +9 more
wiley   +1 more source

Examining the Causes of Russian Presence in the Middle East after the uprisings (with an emphasis on Syria) [PDF]

سپهر سیاست, 2017
The Wave of popular uprisings in the Arabic countries in the Middle East led to overthrow of governments in Tunisia, Egypt, Libya and Yemen from one side and providing civil war in Syria from another side.
Davood Kiani
doaj