Results 51 to 60 of about 195,996 (338)
Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation
Advanced Materials, EarlyView.Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju +7 more
wiley +1 more source
National Institute Economic Review, 1996 This article considers the role of fiscal policy within a European Monetary Union. There are two quite different issues. The first is the medium-term problem of deficits and debt. The Maastricht fiscal convergence criteria are usually seen as an imperfect response to the need to contain potentially ‘irresponsible’ fiscal authorities.
Allsopp, C, Vines, D
openaire +2 more sources
Advanced Materials, EarlyView.We show a giant, bias‐field free, deterministic, spin‐orbit‐torque switching of perpendicular hard magnets with HC over 1.3 T. By combining the three‐fold 3m symmetry from topological insulator surface states with the rectangular mm2 symmetry from the 2 x 1 intercalation in Cr3Te4, the interface symmetry is significantly reduced into a unidirectional m
He Ren +6 more
wiley +1 more source
Вестник Научно-исследовательского института железнодорожного транспорта, 2019 To ensure fatigue strength of metal structures in mechanical engineering, various approaches are practiced. One of them allows for the appearance of cyclic stresses in details with amplitudes exceeding the fatigue limit.
V. V. KOCHERGIN +3 more
doaj +1 more source
Advanced Optical Materials, EarlyView.The efficiency of bulk perovskite‐sensitised upconversion is hindered by parasitic singlet back‐transfer. A 2D perovskite spacer layer is introduced to weaken this loss pathway by increasing the separation between the sensitiser and the emitter. The spacer layer enhances the upconversion efficiency at lower excitation powers and improves the stability ...
Nicholas P. Sloane +10 more
wiley +1 more source
The Future of EMU: What Does the History of Monetary Unions Tell Us? [PDF]
The creation of EMU and the ECB has triggered a discussion of the future of EMU. Independent observers have pointed to a number of shortcomings or hazard areas' in the construction of EMU, such as the absence of a central lender of last resort function ...
Lars Jonung, Michael D. Bordo
core
Photonics of Topological Magnetic Textures
Advanced Optical Materials, EarlyView.Localized noncollinear magetic textures imprint their geometry and topology onto traversing photonic fields endowing them with orbital angular‐momentum, chirality, and magnetoelectric densities. Abstract Topological textures in magnetically ordered materials are an important case studies for fundamental research with promising applications in data ...
Vakhtang Jandieri +6 more
wiley +1 more source
Chengshi guidao jiaotong yanjiuObjective Tread defects are a primary manifestation of wheel failures in high-speed railway EMU (electrical multiple unites) trains, significantly impacting both EMU train operation safety and passenger ride comfort. Wheel tread defects are predominantly
Wenqi WANG +5 more
doaj +1 more source
Strong‐Magnetic Flexible Composites for Magnetically Responsive Soft Robots
Advanced Robotics Research, EarlyView.This perspective provides an overview of the performance mechanisms, preparation methods, and applications of strong magnetic flexible composite materials in soft actuators (such as gripping, movement, and sensing), and further explores current opportunities and challenges.
Wenwen Li +4 more
wiley +1 more source
Chengshi guidao jiaotong yanjiuObjective The jet noise generated by the main circuit breaker switching valve of high-speed railway EMU is excessively high, which seriously affects passenger comfort. Therefore, it is essential to study effective noise reduction measures.
Chao ZHANG +4 more
doaj +1 more source