Results 101 to 110 of about 208,538 (280)

Innovation Meets Accessibility in Melt Electrowriting 3D Printer Design: Continuous Process Monitoring and Automation via Modular Software and Hardware

Advanced Materials Technologies, EarlyView.
This manuscript describes the design and validation of an innovative melt electrowriting printer. With a turntable collector and modular software architecture, it unifies previous advanced MEW printer capabilities and enhances adaptability for a wide range of research applications.
Timo Baroth, Tim R. Dargaville, Paul D. Dalton, Dietmar W. Hutmacher   +3 more
wiley   +1 more source

Adjustability and Stability of Flow Control by Periodic Forcing: A Numerical Investigation

Journal of Marine Science and Engineering
The efficient and stable application of periodic forcing for drag-reduction can help underwater vehicles operate at high speed for long durations and improve their energy-utilization efficiency.
Hongbo Li, Jiancheng Yu, Zhier Chen, Kai Ren, Zhiduo Tan   +4 more
doaj   +1 more source

Model-based design of transverse wall oscillations for turbulent drag reduction

, 2012
Over the last two decades, both experiments and simulations have demonstrated that transverse wall oscillations with properly selected amplitude and frequency can reduce turbulent drag by as much as 40%.
Jovanović, Mihailo R., Moarref, Rashad
core   +1 more source

Multiscale Acoustic Bubble Actuators Using Bioinspired Liquid‐Repellent Microstructures

Advanced Materials Technologies, EarlyView.
The article presents multiscale acoustic bubble actuators using bioinspired liquid‐repellent microstructures, enabling programmable trapping, pumping, mixing, and precise flow control. Mimicking springtail microstructures, these scalable actuators (200 µm–1 mm) offer multifunctionality in all‐in‐one devices, letter‐shaped arrays, and 3D cube ...
Cem Balda Dayan, Nima Mahkam, Nihal Olcay Dogan, Ville Liimatainen, Defne Hiz, Aleyna Ilgezdi, Daniel Razansky, Amirreza Aghakhani, Metin Sitti   +8 more
wiley   +1 more source

Biomimetic interfaces for drag reduction: From mechanism to applications

Friction
With the global population growing, energy demand has increased drastically. Simultaneously, environmental concerns have been increasing at an alarming rate.
Anhui Yu, Ye Fu, Shangzhen Xie, Zhiguang Guo, Feiyan Fu, Weimin Liu   +5 more
doaj   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

Advanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani, Carlo Antonini, Teresa Gatti, Mengjiao Wang   +3 more
wiley   +1 more source

Effect of Molecular Weight on Turbulent Drag Reduction with Polyisobutylene

مجلة النهرين للعلوم الهندسية, 2008
Turbulent drag-reduction efficiency of polyisobutylene with three different, very high molecular weights was studied in a build-up closed loop gas oil circulation system.
Jabir . Shanshool, Haider M. T. Al-Qamaje   +1 more
doaj  

Preservation of Extracellular Vesicle Integrity and Cargo Using Spiral Microfluidic Chip‐Based Separation

Advanced Materials Technologies, EarlyView.
A spiral microfluidic chip is compared with ultrafiltration for the separation of extracellular vesicles (EVs). The method preserves miRNA cargo and membrane integrity more effectively, resulting in intact vesicle morphology and consistent surface biomarker expression.
Huiseop Lee, Sehyeon Kim, Dasom Kong, Hye‐min Park, Hyun‐Ji Park, Jinsik Kim   +5 more
wiley   +1 more source

Drag Reduction in Compressible Channel Turbulence with Periodic Interval Blowing and Suction

Applied Sciences
This paper employs direct numerical simulation (DNS) to investigate the influence of blowing and suction control on the compressible fully developed turbulent flow within an infinitely long channel.
Shibo Lee, Chenglin Zhou, Yang Zhang, Yunlong Zhao, Jiaqi Luo, Yao Zheng   +5 more
doaj   +1 more source

Degradation Mechanisms in PEM Water Electrolysis: Diagnosis and Impact

Advanced Materials Technologies, EarlyView.
This review provides an analysis of degradation mechanisms in proton electrolyte membrane water electrolyzers (PEMWE), focusing on all key components. It discusses diagnostic and measurement techniques for evaluating degradation, less‐studied mechanisms, and an expert survey.
Annik Bernhardt, Katja Lange, Robert Göckeritz, Erik Grunwald, Angelika Hähnel, Alexander Müller, Volker Naumann, Sistan Rasuli, Wolfram Münchgesang, Bruno G. Pollet, Kerstin Witte‐Bodnar, Klemens Ilse   +11 more
wiley   +1 more source