Results 91 to 100 of about 10,016,579 (306)

Bistable Isochoric Chiral Metamaterials with Reprogrammable Multiaxial Responses

Advanced Functional Materials, EarlyView.
An isochoric bistable rotational unit cell enables in situ modification of internal contact conditions post‐fabrication, without altering the global envelope dimensions of the surrounding architecture. By selectively switching between open and closed states, the tessellated chiral metamaterial can reprogram its volumetric response, including bulk ...
Shujia Chen, Lei Wu, Jingran Liu, Damiano Pasini   +3 more
wiley   +1 more source

POLYSEARCH -A Database on Polymers Used in Aerospace

, 2002
POLYSEARCH is a PC - compatible database on polymers used it13; aerospace. It includes mechanical, crystallographic and miscellaneous data on -4C13; polymers relevant to aerospace. The website on the database iE13; www.nal.res.
Basha, Amjad M, Jain, Anjana, Premnath, K Jagadesh, Vijayan, Kalyani   +3 more
core  

Ultra‐Thin Tow‐Based Discontinuous Composites—Material Overview and Aspirations

Advanced Functional Materials, EarlyView.
Tow‐based discontinuous composites made from ultra‐thin tapes offer outstanding in‐plane mechanical properties. This material, inspired by Nacre, has high volume fraction of tapes exceeding 90 % and allows for quasi‐isotropic material plates less than 100 micrometer in thickness.
Ioannis Katsivalis, Vasiliki Safranoglou, Luis Gulfo, Michael R. Wisnom, Martin Fagerström, Malin Åkermo, Soraia Pimenta, Dan Zenkert, Leif E. Asp   +8 more
wiley   +1 more source

Multilateral-Jets Interaction on Hypersonic Missiles: A Numerical Investigation

International Journal of Aerospace Engineering
This paper numerically investigates flow field interaction and aerodynamic interference characteristics of multilateral-jets on hypersonic missiles. Three-dimensional compressible RANS equations coupled with the SST k-ω turbulence model are solved using ...
Zhao Sun, Haiyang Meng, Guangshan Chen
doaj   +1 more source

A 5 kW Near-Single-Mode Oscillating–Amplifying Fiber Laser Employing a Broadband Output Coupler with Simultaneous Raman Suppression and Spectral Narrowing

Photonics
In this work, we propose and demonstrate a novel approach to suppressing stimulated Raman scattering in an oscillating–amplifying integrated fiber laser (OAIFL) by changing the spectral bandwidth of the output-coupler fiber Bragg gratings (OC-FBGs).
Jiazheng Wu, Miao Yu, Yi Cao, Shiqi Jiang, Shihao Sun, Junlong Wang   +5 more
doaj   +1 more source

Intelligent Control for Aerospace Engineers: A Novel Educational Framework

The integration of intelligent control techniques into aerospace engineering education remains a challenge. This paper presents a novel approach for teaching intelligent control specifically designed for aerospace engineers, bridging the gap between ...
Emami S. A., Castaldi P., Narimani M.
core   +1 more source

Recyclable Lignin‐Based Thermadapt Shape Memory Polymers With Near‐Infrared Light Response

Advanced Functional Materials, EarlyView.
ABSTRACT Covalent adaptable networks (CANs) have been designed to address the recycling challenges associated with thermosets, while preserving their mechanical properties. However, producing biobased CANs with intelligent response capabilities remains challenging.
Jian Liu, Yanfan Yang, Görkem Eylül Kaya, Huixing Cao, Joost Brancart, Niko Van den Brande, Lin Dai, Chuanling Si, Katrien V. Bernaerts   +8 more
wiley   +1 more source

Corrosion control in the aerospace industry [PDF]

Aircraft Engineering and Aerospace Technology, 2009
  +5 more sources

Distributed Fiber Optic Sensor for Accurate Liquid Level Monitoring Based on Optical Frequency Domain Reflectometry

Advanced Devices & Instrumentation
This study presents a highly accurate liquid level monitoring system utilizing optical frequency domain reflectometry (OFDR). The proposed system detects environmental characteristics along the length of the optical fiber and determines liquid levels in ...
Ying Mei, Xuefeng Wang, Yong Yang, Xiaojun Yang, Xuechao Tian, Rui Du   +5 more
doaj   +1 more source

Optimal Control and Applications to Aerospace: Some Results and Challenges [PDF]

Journal of Optimization Theory and Applications, 2012
This article surveys the classical techniques of nonlinear optimal control such as the Pontryagin Maximum Principle and the conjugate point theory, and how they can be implemented numerically, with a special focus on applications to aerospace problems. In practice the knowledge resulting from the maximum principle is often insufficient for solving the ...
openaire   +3 more sources