Results 41 to 50 of about 145,187 (265)

Development and Assessment of a Miniaturized Test Rig for Evaluating Noise Reduction in Serrated Blades Under Turbulent Flow Conditions

Acoustics
The implementation of serrated stator blades in axial compressor and fan stages offers significant advantages, such as enhanced performance and reduced noise levels, making it a practical and cost-effective solution.
Andrei-George Totu, Cristian-Teodor Olariu, Andrei-Tudor Trifu, Andreea-Cătălina Totu, Grigore Cican   +4 more
doaj   +1 more source

Efficient and Accurate hybrid GO-Spectral Algorithm to Design Conformal Serrated-Edge Reflectors Operating as Collimators in Millimeter Wave Compact Ranges [PDF]

, 2010
This paper presents a hybrid analysis algorithm, which is used at Radiation Group (UPM) to carry out the design of a conformal serrated-edge reflector for the mm-Wave compact range UPM facility.
Muñoz Acevedo, Alfonso, Sierra Castañer, Manuel, Besada Sanmartín, José Luis   +2 more
core  

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

Advanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen, Patryk Wąsik, Juan Fernando Cucuyame Morales, Marie Kate Palau, Adrian Francisco Duran Ornelas, Phani Saketh Dasika, Jin Hee Kim, Radhika Laxminarayana, Eric Hintsala, Greta Chang, Junzhi Liao, Lizhi Sun, Nathan Lord, Atsushi Arakaki, Paul Bardunias, Pablo Zavattieri, David Kisailus   +16 more
wiley   +1 more source

Alleviation of unbalanced rotor loads by single blade controllers [PDF]

, 2009
A novel approach to reducing the unbalance rotor loads by pitch control is presented in this paper. Each blade has its own actuator, sensors and controller.
Leithead, W.E., Neilson, Victoria, Dominguez, S.   +2 more
core   +3 more sources

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

Advanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong, James Trevarthen, Igor Dolbnya, Wadwan Singhapong, Nicholas Pilato, Richard Butler, Jiraphant Srisuriyachot, Alexander J. G. Lunt   +7 more
wiley   +1 more source

Multimodal Bioinspired Self‐Healing Composites Enabling Durable and High‐Efficiency Wearable Perovskite Light‐Emitting Diodes

Advanced Science, EarlyView.
Butterfly wing–inspired intrinsically self‐healing polymer interlayers enable flexible perovskite optoelectronics with high luminance, strain‐insensitive stability, and environmental resilience. These hierarchically structured films redistribute mechanical stress, suppress defect formation, and maintain performance under repeated bending, paving the ...
Loganathan Veeramuthu, Yu‐Chen Wang, Chun‐Tse Tsai, Yen‐Lin Tseng, Xuan Ting King, Tzu‐Ming Hsu, Zhen‐Li Yan, Fang‐Cheng Liang, Pei‐Yin Chen, Georgy Dosovitskiy, Yehonadav Bekenstein, Hyunjin Lee, Tao Zhou, Chi‐Ching Kuo   +13 more
wiley   +1 more source

Noise Attenuation by Half Flat tip Serrated Trailing Edge in Rotating Blades

Journal of Physics: Conference Series, 2023
Abstract Two rotating blade models with different half-flat tip trailing edge serrations were proposed. The flow characteristics and aerodynamic noise were simulated using the large-eddy simulation model and Ffowcs Williams and Hawking’s acoustic analogy, respectively.
Jieyan Chen, Jinlong Xie, Hsiao Mun Lee
openaire   +1 more source

Adaptive Conductive Systems: Enabling Deformable Electronics Through Engineered Materials, Circuits, and Intelligent Systems

Advanced Science, EarlyView.
This review presents the research advances of adaptive conductive systems from the perspective of materials, circuits, systems, and applications. Deformable conductors consist of substrates/matrices and conductive materials, structural design of circuit interconnections, fabrication of circuit interconnections, as well as intelligent systems ...
Yufei Lu, Siyu Liang, Jingyi Niu, Jie Chen, Shuo Zhang, Hongjian Zhang, Dongsheng Jia, Wei Huang   +7 more
wiley   +1 more source

High‐Performance Bio‐Based Epoxy Vitrimers and Composites: Synergizing Robustness and Reprocessability via Fractional Free Volume Regulation

Advanced Science, EarlyView.
In this work, two bio‐based epoxy monomers were designed to tune the dynamic network of a rigid–flexible hybrid epoxy through free‐volume control, achieving a synergy among high free volume, high cross‐linking density, and segmental mobility while balancing strength and toughness.
Kai Dong, Di Zhao, Chengji Zhao
wiley   +1 more source

A Tissue-Chopping Based Immunofluorescence Staining Method for Chloroplast Proteins

Frontiers in Plant Science, 2022
Immunofluorescence staining is an important method for detecting the localization of proteins in the cell. It is also frequently used in the localization study of chloroplast-division proteins.
Lulu Wang, Lulu Wang, Mingdong Tang, Mingdong Tang, Wenwen Huang, Wenwen Huang, Jinjie An, Jinjie An, Xiaomin Liu, Xiaomin Liu, Hongbo Gao, Hongbo Gao   +11 more
doaj   +1 more source