Results 121 to 130 of about 15,748 (277)

Blade Vibration Difference-Based Circumferential Fourier Fitting Algorithm for Synchronous Vibration Parameter Identification of Rotation Blades

Sensors
Blades are the core components of rotating machinery, and the blade vibration status directly impacts the working efficiency and safe operation of the equipment.
Zhenfang Fan, Hongkun Li, Jinying Huang, Siyuan Liu   +3 more
doaj   +1 more source

Alcohol‐Adduct Mediated Precursor Stabilization Strategies for Conformal SnO2 Layers in Highly Efficient and Stable Perovskite Solar Modules

Advanced Energy Materials, EarlyView.
An alcohol‐adduct‐mediated strategy is employed to stabilize tin isopropoxide for the formation of a homogeneous double electron transport layer (ETL) incorporating SnO2 nanoparticles (NPs). This double‐ETL exhibits improved optical and charge‐transport properties due to reduced defect density and better energy level alignment, resulting in high ...
You‐Hyun Seo, Eun Young Park, Chan Su Moon, Dong Gyu Lee, Junho Park, Fabian Rotermund, Gill Sang Han, Tae Kyung Lee, Nam Joong Jeon, Bong Joo Kang, Young Yun Kim   +10 more
wiley   +1 more source

New Possibilities for Analyzing Complex Asynchronous Blade Vibrations From Tip-Timing Data Using a Sparse Spectral Analysis Method

, 2019
International audienceAbstract Measurements in engine operation provide key information for understanding the blades vibrating behaviors, especially while observing complex asynchronous vibrations, such as flutter.
Arnaud Talon, Lahalle, Elisabeth, Burgardt, Bertrand, Antoine Bouchain, José Picheral, Vercoutter, Agathe, Elisabeth Lahalle, Agathe Vercoutter, Picheral, José, Talon, Arnaud, Bouchain, Antoine, Bertrand Burgardt   +11 more
core   +1 more source

Smart Exploration of Perovskite Photovoltaics: From AI Driven Discovery to Autonomous Laboratories

Advanced Energy Materials, EarlyView.
In this review, we summarize the fundamentals of AI in automated materials science, and review AI applications in perovskite solar cells. Then, we sum up recent progress in AI‐guided manufacturing optimization, and highlight AI‐driven high‐throughput and autonomous laboratories.
Wenning Chen, Zheyu Zhang, Kelvian T. Mularso, Bonghyun Jo, Hyun Suk Jung   +4 more
wiley   +1 more source

Atomic‐Layer‐Deposited ZnF2 on Aluminum Enabling In Situ NaF/Na–Zn Interphase for Robust Anode‐Free Sodium Batteries

Advanced Energy Materials, EarlyView.
“Sodiation of an ultrathin ALD‐ZnF2 layer on an Al current collector generates a sodiophilic Na–Zn alloy and a NaF‐rich SEI, enabling uniform Na deposition and highly reversible anode‐free sodium batteries.” ABSTRACT Achieving high‐energy‐density “anode‐free” sodium batteries remains a daunting challenge due to rapid capacity decay caused by poor ...
Viet Phuong Nguyen, Angelina Sarapulova, Michael Günthel, Markus Knäbbeler‐Buß, Changin Kim, Young‐Woon Byeon, Moonwon Lee, Kanghoon Yim, Eric Tröster, Sonia Dsoke, Seung‐Mo Lee   +10 more
wiley   +1 more source

Tip timing techniques for turbomachinery HCF condition monitoring [PDF]

, 2002
High Cycle Fatigue (HCF) has been established as the major common failure mode in the US Air Force large fleet of aero-engines. Corrective measures for this failure mode in themselves deliver additional technical, managerial and cost pressures.
Ivey, P. C., Lawson, Craig P., Grant, K. R.   +2 more
core  

In Situ Contact Angle Measurement for Autonomous Spin Coating in Self‐Driving Labs

Advanced Intelligent Discovery, EarlyView.
A vision‐based add‐on transforms commercial spin coaters into autonomous modules of Self‐Driving Labs. Combining a width‐scaled U‐Net with classical geometric analysis, the system simultaneously measures contact angles and estimates substrate pose using a single camera.
Sven Fischer, Micha Hiegle, Holger Röhm
wiley   +1 more source

Iteratively Learning Reconstruction of Blade Tip-Timing Signals and Cointegration-Based Damage Detection Under Variable Conditions

IEEE Access
Blade tip-timing (BTT) is a direct blade vibration monitoring technique and how to use under-sampled BTT signals for blade damage detection is still challenging under variable conditions. Compressed sensing (CS) has been introduced for reconstructing BTT
Zhongsheng Chen, Haopeng Liu, Lianying Liao   +2 more
doaj   +1 more source

Advanced Noncontact Sensors for Blade Tip-Timing Systems

Journal of Physics: Conference Series
Abstract The conference paper addresses noncontact sensors for measuring vibrations of machine blades using the Blade Tip Timing method. An overview of sensors based on the electromagnetic principle suitable for the harsh environment of low-pressure stages of steam turbines is presented.
Pavel Procházka, Mohammed Lamine Mekhalfia, Robert HodboĎ   +2 more
openaire   +1 more source

Pre‐Curved Everting Robots With Embedded Steering Intelligence Fabricated by CO2 Laser Welding

Advanced Intelligent Systems, EarlyView.
Design and experimental demonstration of a laser welded growing robot for anatomically guided navigation. The robot follows an aortic arch phantom entering the branchiocephalic branch through steering by design. The figure shows the physical phantom setup, CAD defined weld geometry and full robot eversion.
Brandon Saldarriaga, Panagiotis Kalozoumis, Panagiotis Vartholomeos, Carlo Seneci, Kawal Rhode, Christos Bergeles   +5 more
wiley   +1 more source