Results 71 to 80 of about 446,826 (283)
Advanced Science, EarlyView.Reconfigurable self‐contact variable stiffness metamaterials based on shape memory polymers enable programmable stiffness switching. Static arrays store and encrypt information with immunity to electromagnetic interference, while asymmetric stiffness converts symmetric vibration into directional matter transport.
Huadong Qin +7 more
wiley +1 more source
A Scalable Double‐Sided Wet Etching Strategy for Large‐Area Mushroom‐Shaped Bionic Adhesives
Advanced Science, EarlyView.This work presents a scalable manufacturing strategy for high‐performance, large‐area, mushroom‐shaped bio‐inspired adhesives. Using a double‐sided wet etching process, the complex 3D metal molds are fabricated rapidly and controllably. The resulting adhesive structures exhibit strong, stable adhesion under various conditions, including atmosphere and ...
Keju Ji +8 more
wiley +1 more source
Advanced Magnetic Materials for Aeronautics
Fatigue of Aircraft Structures, 2014 In the field of magnetic sensors, magnetic microwires with positive magnetostriction are the materials of the future. Their mechanical and magnetic properties render them ideal materials for applications in aeronautics.
Šmelko Miroslav +2 more
doaj +1 more source
Advanced Science, EarlyView.A novel B2‐ordered Ti‐Zr‐V‐Al medium‐entropy intermetallic is developed through controlled metastability engineering, which activates an ordered TRIP effect via a new B2→D019‐α2 transformation with a distinctive {0001}α2//{110}B2, <11‐20>α2//<100>B2 orientation relationship. This alloy achieves an elongation of ∼7%, a strength of ∼1.1 GPa, and superior
Chaohua Li +8 more
wiley +1 more source
Armata română în campania de limitare şi lichidare a expansionismului bolşevic din Estul şi Centrul Europei. Divizia 6 Infanterie Focşani în apărarea României Mari [PDF]
Polis: Revista de Stiinte Politice, 2019 When in November 1918 the Great Powers ended the Great Imperial War, Romania continued its own national war, with all the sacrifices and human, material and territorial losses caused by the campaigns of 1916 and 1917, by the Peace Treaty of Bucharest ...
Jănel TĂNASE
doaj
Vine‐Inspired Soft Robotics: Materials, Actuations, and Emerging Applications
Advanced Science, EarlyView.Vine‐inspired robots grow from the tip, enabling navigation through confined spaces with minimal disturbance. This Review summarizes material and actuation strategies for vine‐inspired growth, key functions including steering, retraction, attachment, branching, and variable stiffness, and emerging applications spanning medical intervention, confined ...
Jiahao Wu +7 more
wiley +1 more source
CAM 52: Supplement No. 4 - Revisions To Civil Aeronautics Manual 52 Dated June 1952
This manual contains Civil Air Manual Part 52: Supplement No.
United States. Civil Aeronautics Board
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Advanced Science, EarlyView.Field‐driven active colloids are framed as distributed micromachines in which externally supplied power, sensing, and control regulate task‐relevant states. By closing the loop between particle behavior, imaging, computation, and electric or magnetic actuation, these systems can progress from programmable motion toward adaptive functional outcomes ...
Ruchi Patel, Bhuvnesh Bharti
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STUDENT SCIENTIFIC SOCIETY IN THE FIELD OF AVIATION AND COSMONAUTICS (1910-1920s)
Высшее образование в России, 2016 The article describes the activities of two student scientific associations that existed in 1920B1920s: the Circle for the study of Aeronautics and the Section of interplanetary connections, organized with an interval of twenty years in St.
Mikhail N. Okhotchinskiy
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Aeronautical Periodicals (1783–1945) – A Reflection of Air Power
History of Engineering Sciences and Institutions of Higher Education, 2019 Periodical publications have played an important role in the development of aeronautics, providing a platform for scientific exchange and informing the public about the ongoing progress.
Guenther Sollinger
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