Results 111 to 120 of about 643,378 (316)

Dynamic analysis of a pre-and-post ice impacted blade [PDF]

The dynamic characteristics of an engine blade are evaluated under pre-and-post ice impact conditions using the NASA in-house computer code BLASIM. The ice impacts the leading edge of the blade causing severe local damage.
Abumeri, G. H., Chamis, C. C., Murthy, P. L. N., Reddy, E. S.   +3 more
core   +1 more source

3D Bioprinting‐Assisted Engineering of Stem Cell‐Laden Hybrid Biopatches With Distinct Geometric Patterns Considering the Mechanical Characteristics of Regular and Irregular Connective Tissues

Advanced Healthcare Materials, EarlyView.
A hybrid biopatch platform integrating 3D printed polymeric patterns with stem cell‐laden collagen bioinks is developed to mimic the mechanical properties of connective tissues. By tailoring geometric architectures, the constructs replicate anisotropic or isotropic mechanics, enhancing tissue‐specific regeneration.
Minjun Ahn, Gyu Tae Park, Arvind Kumar Shukla, Boguen Kwon, Jae Ho Kim, Eui‐Suk Sung, Byoung Soo Kim   +6 more
wiley   +1 more source

A flight investigation of blade section aerodynamics for a helicopter main rotor having NLR-1T airfoil sections [PDF]

A flight investigation was conducted using a teetering-rotor AH-1G helicopter to obtain data on the aerodynamic behavior of main-rotor blades with the NLR-1T blade section.
Morris, C. E. K., Jr., Stevens, D. D., Tomaine, R. L.   +2 more
core   +1 more source

Multifunctional Neural Probes Enable Bidirectional Electrical, Optical, and Chemical Recording and Stimulation In Vivo

Advanced Materials, EarlyView.
Convergence drawing is used to create flexible, microscale, multifunctional fiber‐based neural probes. Optimized materials selection enables individual devices to perform neural recording, electrical stimulation, optogenetics, fiber photometry, fluid delivery, and voltammetric neurotransmitter detection in rodents.
Nicolette Driscoll, Marc‐Joseph Antonini, Taylor M. Cannon, Pema Maretich, Greatness Olaitan, Valerie Doan Phi Van, Keisuke Nagao, Atharva Sahasrabudhe, Emmanuel Vargas Paniagua, Ethan J. Frey, Ye Ji Kim, Sydney Hunt, Melissa Hummel, Sanju Mupparaju, Alan Jasanoff, B. Jill Venton, Polina Anikeeva   +16 more
wiley   +1 more source

A FORTRAN computer code for calculating flows in multiple-blade-element cascades [PDF]

A solution technique has been developed for solving the multiple-blade-element, surface-of-revolution, blade-to-blade flow problem in turbomachinery. The calculation solves approximate flow equations which include the effects of compressibility, radius ...
Mcfarland, E. R.
core   +1 more source

A Theory on Cascades built up of Arbitrary Blade Sections (1st Report) : Especially for those of Small Pitch-chord Ratio or those built up of Blade Sections with Large Camber and Thickness

, 1952
Masaaki SHIRAKURA
openalex   +2 more sources

Top Cells for Silicon‐Based Tandem Photovoltaics

Advanced Materials, EarlyView.
The article provides a comprehensive review of Si‐based tandem solar cells, highlighting the advantages of silicon as a bottom cell and exploring top cell technologies including III–V compounds, perovskites, and emerging chalcogenide materials. It summarizes current challenges of these top cell materials and offers insights into future research ...
Mingrui He, Meng Zhang, Zhen Li, Xu Liu, Kaiwen Sun, Ziheng Liu, Xiaojing Hao   +6 more
wiley   +1 more source

Studies on Leaf Analysis : III. Seasonal variation in inorganic constituents of rice plant. : Nitrogen content of leaf blade as an index of fertilizer requirement and the parts signing P and K deficiencies.

, 1956
Giichi Hasegawa, Takaaki Oba
openalex   +2 more sources

Cottonseed‐Derived Reusable Bio‐Carbon Gel Ink for DIW Printing Soft Electronic Textiles

Advanced Materials, EarlyView.
A reusable carbon‐gel ink, incorporating cottonseed peptone as a natural mediator, enables cross‐linked ionic polymer networks for advanced conductivity, stability, and biocompatibility. Compatible with direct‐ink‐writing, it facilitates flexible electronics on polymeric and textile substrates for multifunctional applications, including motion sensing,
King Yan Chung, Di Tan, Ziyu He, Xiao Li, Jian Lu, Qingjun Yang, Xinlong Liu, Bingang Xu   +7 more
wiley   +1 more source

SR-7A aeroelastic model design report [PDF]

A scale model was designed to simulate the aeroelastic characteristics and performance of the 2.74 meter (9 ft.) diameter SR-7L blade. The procedures used in this model blade design are discussed.
Auyeung, S., Nagle, D., Turnberg, J.
core   +1 more source