Results 71 to 80 of about 406,372 (350)
Observation of Topological Chirality Switching Induced Freezing of a Skyrmion Crystal
Using Lorentz Transmission electron microscopy, it is shown that in the insulating van der Waals ferromagnet, CrBr3, a magnetic field can cause Bloch skyrmionic bubbles to spontaneously switch their chirality. As achiral type‐II bubbles are an intermediate state, the bubbles rapidly elongate and shrink when switching, thereby inducing a freezing of the
John Fullerton +10 more
wiley +1 more source
This article is an exploration of the relationship between technology and warfare from prehistoric times to the present day. The subject is examined in four realms – land, naval, air and space – and three time periods defined by the dominant power ...
Alex Roland
doaj +1 more source
Classification of Incomplete Data Using the Fuzzy ARTMAP Neural Network [PDF]
The fuzzy ARTMAP neural network is used to classify data that is incomplete in one or more ways. These include a limited number of training cases, missing components, missing class labels, and missing classes.
Granger, Eric +3 more
core +1 more source
Spectral Tuning of Hyperbolic Shear Polaritons in Monoclinic Gallium Oxide via Isotopic Substitution
Spectral tuning of highly directional hyperbolic shear polaritons is realized via isotopic substitution of 16O to 18O in monoclinic β$\beta$‐phase gallium oxide. A red‐shift of almost 40 cm−1 is experimentally demonstrated with near‐field imaging, corroborated by the permittivity change extracted from far‐field experiments and density functional theory.
Giulia Carini +28 more
wiley +1 more source
Russian military pharmacopoeias in the military health system
The development of Russia at the turn of the XVII-XVIII centuries led to the necessity of building a regular army and naval forces, capable of defending the national interests.
Yu. V. Miroshnichenko +2 more
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National Science Foundation (SBE-0354378); Office of Naval Research (N00014-01-1 ...
Grossberg, Stephen
core +1 more source
Moth‐Wing‐Inspired Multifunctional Metamaterials
This study develops a moth‐wing‐inspired heterogeneous metamaterial that achieves synergistic broadband sound absorption, mechanical energy dissipation, and thermal insulation within a lightweight architected framework. Combining bioinspired gradient design, genetic‐algorithm optimization, and additive manufacturing, the bionic heterogeneous acoustic ...
Haoran Pei +12 more
wiley +1 more source
Rewriting Polymer Fate via Chemomechanical Coupling
This work introduces a life‐like “living” polymer platform that can grow, degrow, and reprogram its properties after fabrication. By integrating mass transport, reversible polymerization, and controlled catalysis, the material achieves on‐demand changes in size, shape, and mechanical properties.
Jiahe Huang +9 more
wiley +1 more source
Abstrak Keamanan maritim telah menjadi isu strategis yang semakin menonjol dalam konteks pertahanan global dan regional. Laut, sebagai jalur utama perdagangan internasional dan logistik energi, sangat rentan terhadap eksploitasi oleh aktor non-negara
Muhammad Saleh Cahyadi Mohan +2 more
doaj +1 more source
Wenqi Qin,1 Yan Wu,1 Jieting Liu,1 Xiaohuan Yuan,1 Jie Gao2 1College of Life Science, Mudanjiang Medical University, Mudanjiang, People’s Republic of China; 2Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai,
Qin W, Wu Y, Liu J, Yuan X, Gao J
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