Results 101 to 110 of about 1,072,340 (188)

A Comparison of Blade Tip-Timing Data Analysis Methods

, 1999
The determination of the vibration characteristics of rotating engine blades is very important for fatigue failure considerations. One of the most promising techniques for measuring blade vibrations is blade tip-timing. Three vibration analysis methods
Cooper, J. E., Carrington, I. B., Dimitriadis, Grigorios, Wright, J. R.   +3 more
core  

Analytical procedures for solving blade vibration using the Blade Tip Timing - theoretical description of the method

, 2022
The report focuses on an analytical approach to solving the problem of turbine and compressor blade vibration using the Blade Tip Timing method. The report contains a description of the new method with defined solution requirements.
Maturkanič, Dušan
core  

In Vivo Nb4C3Tx MXene‐Assisted Photothermal Therapy of Melanoma in Mice

Advanced NanoBiomed Research, EarlyView.
Nb4C3Tx MXene converts pulsed 1064 nm irradiation into localized heat, producing concentration‐ and time‐dependent melanoma cell killing in vitro and suppressing tumor growth in mice. Histology reveals extensive tumor damage, macrophage‐associated material clearance, and no detectable persistent deposits in examined visceral organs, supporting Nb4C3Tx ...
Anton Roshchupkin, Benjamin Chacon, Gulnaz Gahramanova, Inna Chorna, Zhanna Klishchova, Anastasia Konieva, Ilya Yanko, Andrii Liutyi, Milena Yalyzhko, Ivan Baginskiy, Veronika Zahorodna, Júlio Sílvio de Sousa Bueno Filho, Erfan Rezvani Ghomi, Igor Panko, Tetiana Shapochka, Oksana Sulaieva, Oleksandr Solodovnyk, Lucia Gemma Delogu, Oleksiy Gogotsi, Laura Fusco, Sergiy Kyrylenko, Yury Gogotsi, Maksym Pogorielov   +22 more
wiley   +1 more source

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

Hybrid Inertial–Centrifugal Gas–Liquid Separator: CFD‐Driven Optimization Using Coupled Discrete Phase and Wall‐Film Modeling With Response Surface Methodology

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Efficient removal of liquid aerosols from compressed gas streams is essential in chemical and energy processes. Conventional separators relying on a single mechanism (inertial or centrifugal) struggle to capture both fine and coarse droplets simultaneously.
Son Ung Kang, Phyong Jon Thak, Kyong Jun Ri, Chung Hyok Choe   +3 more
wiley   +1 more source

Large Tip Clearance Flows in High Pressure Stages of Axial Compressors [PDF]

, 2009
This thesis investigates over tip leakage where the tip clearance is large. In the high pressure stages of axial compressors the tip clearance can be typically 6% of span and the total blockage due to tip clearance can consume in excess of forty percent ...
WILLIAMS, RICHARD,JAMES
core  

A subspace method for modal identification of bladed assemblies using blade tip-timing data

, 2007
International audienceUnknown excitation forces are applied to bladed disk assemblies, such as turbines blades, leading to forced vibration responses.
Salhi, Bendali, Lardies, Joseph, Bodel, Charles, Voinis, Philippe, Berthillier, Marc, Joseph Lardies, Marc Berthillier, Philippe Voinis, Charles Bodel, Bendali Salhi   +9 more
core   +1 more source

Dicarboxymethyl Cellulose‐Based Mixed‐Matrix Membrane Adsorbers: Preparation, Characterization, and Protein Retention Performance

Journal of Applied Polymer Science, EarlyView.
Dicarboxymethyl cellulose is incorporated, for the first time, into a polyethersulfone membrane. The functional membranes are prepared using dimethyl isosorbide through combined non‐solvent and vapor‐induced phase separation. The resulting membranes exhibit porous structures and protein‐retention potential, highlighting the potential of this cellulose ...
Diana Gago, Giuseppe Di Luca, Francesca Russo, Ricardo Chagas, Luísa Maria Ferreira, Francesco Galiano, Isabel Coelhoso, Alberto Figoli   +7 more
wiley   +1 more source

Research on Blade Asynchronous Vibration Parameter Identification for Large-Scale Centrifugal Compressor Based on Improved MUSIC Algorithm

Sensors
Blade tip timing (BTT) is a core technique for investigating the blade vibration of large-scale centrifugal compressors, and identifying the parameters of blade asynchronous vibration is crucial for implementing blade condition monitoring based on the ...
Zhenfang Fan, Yongtao Shen, Yupeng Du, Jinying Huang, Siyuan Liu   +4 more
doaj   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

The Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source