Results 31 to 40 of about 311,390 (313)

Tiltrotor CFD part II: aerodynamic optimisation of tiltrotor blades [PDF]

, 2017
This paper presents aerodynamic optimisation of tiltrotor blades with high-fidelity computational fluid dynamics. The employed optimisation framework is based on a quasi-Newton method, and the required high-fidelity flow gradients were computed using a
Barakos, G.N., Baverstock, K.D., Biava, M., Gates, S., Jimenez Garcia, A., Mullen, P.   +5 more
core   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Bend–Twist Coupling for Small Wind Turbines: A Blade Design Methodology to Enhance Power Generation

Energies
Small-scale wind turbines (SWTs) represent a promising solution for the energy transition and the decentralization of electricity generation in non-interconnected areas.
Juan Pablo Vanegas-Alzate, María Antonia Restrepo-Madrigal, José Luis Torres-Madroñero, César Nieto-Londoño, Germán Alberto Barragán de los Rios, Jorge Mario Tamayo-Avendaño, Julián Sierra-Pérez, Joham Alvarez-Montoya, Daniel Restrepo-Montoya   +8 more
doaj   +1 more source

Fabricated of Vertical Axis wind turbine (VAWT) and study the parameter

Tikrit Journal of Pure Science, 2019
Due to the lack of electric power in areas away from power transmission lines and high prices of conventional fuel due to high pollution. A vertical system is used which depends on wind energy used to rotate a vertical turbine.
Yaseen H. Mahmood, Mahamed K. bedewy
doaj   +1 more source

Blade Structure Design Based on Topology Optimization and Shape Optimization

Hangkong gongcheng jinzhan, 2020
The blade cross-section design of the helicopter rotor is the basis for studying the rotor dynamics design. A two-stage optimization design method combining joint topology optimization and shape optimization is proposed, which can be used for the design ...
ZHOU Cheng, LIN Jie, LIU Yong
doaj   +1 more source

Optimal design of wind turbine blades equipped with flaps [PDF]

, 2014
As a result of the significant growth of wind turbines in size, blade load control has become the main challenge for large wind turbines. Many advanced techniques have been investigated aiming at developing control devices to ease blade loading.
Maheri, Alireza, Wiratama, I. Kade
core  

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Multi-objective Optimization of Micro Wind Generator Blade Structure Parameters based on Response Surface Methodology and Non-dominated Sorting Genetic Algorithm III [PDF]

Journal of Applied Fluid Mechanics
This study investigates the effect of blade structural parameters on the power generation performance—specifically output current and voltage of a micro wind generator, using experimental testing and multi-objective optimization.
C. Wang, D. Y. Luo, H. L. Fan, H. Yang, T. L. Wei   +4 more
doaj   +1 more source

Multi-Objective Optimization Design for a Novel Parametrized Torque Converter Based on an Integrated CFD Cascade Design System

Machines, 2022
Advanced cascade design theories and methods are crucial to the rapid development of torque converters. Therefore, the study proposed a new parametric design method for a hydrodynamic torque converter cascade.
Zilin Ran, Wenxing Ma, Kaifeng Wang, Bosen Chai   +3 more
doaj   +1 more source