Results 71 to 80 of about 539,000 (325)

3D‐Printed Serial Snap‐Through Architectures for Programmable Mechanical Response

Advanced Engineering Materials, EarlyView.
A serial snap‐through architecture is realized using compact 3D‐printed von Mises truss units arranged in a staged cascade. Their geometry and boundary conditions program multistage mechanical responses with plateaux and re‐hardening regimes. An inverted‐compliance model predicts these behaviors and enables analytical design of programmable force ...
Filipe A. Santos
wiley   +1 more source

Cooperative attack strategy during the terminal guidance phase for loitering munitions based on impact angle and impact time constraints

Xibei Gongye Daxue Xuebao
In order to solve the cooperative attack problem during the terminal guidance phase for loitering munition swarm, a cooperative attack strategy for loitering munitions with impact angle constraints is proposed.
ZHAO Junmin, WANG Ronggang, LI Xinguo, ZHANG Dong   +3 more
doaj   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

A New United Proportional Navigation Guidance for Impact Angle Constraint without Measurement Distance between Vehicle and Target

International Journal of Aerospace Engineering, 2022
This paper proposed a united proportional navigation guidance (UPNG) method to alleviate the guidance command saltation with an impact angle constraint under the condition of no real-time distance between the vehicle and the target (line-of-sight (LOS ...
Hao Yang, Hangjin Wu, Xibin Bai, Shifeng Zhang   +3 more
doaj   +1 more source

The Physics of Heavy Flavours at SuperB

, 2011
This is a review of the SuperB project, covering the accelerator, detector, and highlights of the broad physics programme. SuperB is a flavour factory capable of performing precision measurements and searches for rare and forbidden decays of $B_{u,d,s}$,
, , , Aad G, Abazov V M, Abe K, Abe K, Abe T, Adrian J Bevan, Altmannshofer W, Antusch S, Arganda E, Aushev T, Bartsch M, Bevan A Inguglia G Meadows B, Biagini M E, Bigi I I Y Sanda A I, Bischofberger M, Blanke M, Blanke M, Bona M, Bona M, Bona M, Bona M, Brook N, Brown D, CDF Collaboration, Ceccucci A, Egede U, Gamiz E, Grauges E, Hitlin D G, Huo W-j Cai-Dian L Xiao Z-j, Kolomensky Y, Kostelecky V A, Lees J P, Lees J P, Lunghi E Soni A, Meadows B, Nakamura K, O’Leary B, Paradisi P, Raidal M, See the contributions by Langenegger U Serrano J   +43 more
core   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Trajectory Shaping of Surface-to-surface Missile with Terminal Impact Angle Constraint [PDF]

, 2007
This paper presents trajectory shaping of a surface-to-surface missile attacking a fixed with terminal impact angleconstraint. The missile must hit the target from above, subject to the missile dynamics and path constraints.
Subchan, S. (S)
core  

Precision Weak Gravitational Lensing Using Velocity Fields: Fisher Matrix Analysis

, 2021
Weak gravitational lensing measurements based on photometry are limited by shape noise, the variance in the unknown unlensed orientations of the source galaxies.
Self, Matthew, Wittman, David
core  

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

Advanced Functional Materials, EarlyView.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu, Varun Shah, Rodion Vladimirovich Belosludov, Mohammad Saeed Bahramy   +3 more
wiley   +1 more source

A Two-Phased Guidance Law for Impact Angle Control with Seeker’s Field-of-View Limit

International Journal of Aerospace Engineering, 2018
A two-phased guidance problem with terminal impact angle constraints and seeker’s field-of-view limit is addressed in this paper for a missile against a nonmaneuvering incoming target.
Haoqiang Zhang, Shengjing Tang, Jie Guo, Wan Zhang   +3 more
doaj   +1 more source