Results 41 to 50 of about 1,027,849 (126)

Recent Advances in Spiro‐MeOTAD Hole Transport Material and Its Applications in Organic–Inorganic Halide Perovskite Solar Cells

Advanced Materials Interfaces, Volume 5, Issue 1, January 9, 2018., 2018
Spiro‐MeOTAD is the most commonly used hole transport material for perovskite solar cells. In this article, various aspects of spiro‐MeOTAD including its properties, additives, stability, alternatives, its applications in perovskite solar cells as well as other applications are reviewed.
Zafer Hawash, Luis K. Ono, Yabing Qi
wiley   +1 more source

Architecture for Measuring Blade Tip Clearance and Time of Arrival with Multiple Sensors in Airplane Engines

International Journal of Aerospace Engineering, Volume 2018, Issue 1, 2018., 2018
The performance of airplane engines is influenced by the performance of their bladed disks. The loads those engines are under, both internal and external, are the origin of vibrations than can jeopardize their integrity. Traditionally, monitoring of those vibrations has been circumscribed to prototyping and quality tests of manufactured disks. However,
José Miguel Gil-García, Joseba Zubia, Gerardo Aranguren, Nicolas Avdelidis   +3 more
wiley   +1 more source

Uncertainties in the calibration process of blade tip timing data against finite element model predictions [PDF]

, 2020
Blade stresses are determined from blade tip timing (BTT) data by relating the measured tip deflection to the stresses via Finite Element (FE) models. This process includes some uncertainties due to the following: 1) the shift in the equilibrium position
Mohamed, Mohamed, Russhard, P, Bonello, Philip   +2 more
core   +1 more source

Organic field‐effect transistors: Materials design, device physics, and contact engineering for high‐performance flexible electronics

Information &Functional Materials, Volume 2, Issue 4, Page 267-305, December 2025.
This review bridges molecular design with device engineering to address key challenges in organic transistors. By integrating materials chemistry with contact optimization, it provides pathways toward stable, high‐performance flexible electronics. Abstract Organic field‐effect transistors are widely recognized as key enabling components for low‐cost ...
Fenglan Kuang, Fei Wang, Dawei Duan, Yicong Ma, Xiaokang Sun, Soumitra Satapathi, Annie Ng, Haoran Lin, Zheng Li, Yufei Zhong, Hanlin Hu   +10 more
wiley   +1 more source

Integrin‐Mediated Cell‐Matrix Interaction in Physiological and Pathological Blood Vessel Formation

Journal of Oncology, Volume 2012, Issue 1, 2012., 2012
Physiological as well as pathological blood vessel formation are fundamentally dependent on cell‐matrix interaction. Integrins, a family of major cell adhesion receptors, play a pivotal role in development, maintenance, and remodeling of the vasculature.
Stephan Niland, Johannes A. Eble, Debabrata Mukhopadhyay   +2 more
wiley   +1 more source

A Class of Methods for the Analysis of Blade Tip Timing Data from Bladed Assemblies Undergoing Simultaneous Resonances—Part I: Theoretical Development

International Journal of Rotating Machinery, Volume 2007, Issue 1, 2007., 2007
Blade tip timing is a technique for the measurement of vibrations in rotating bladed assemblies. Although the fundamentals of the technique are simple, the analysis of data obtained in the presence of simultaneously occurring synchronous resonances is problematic.
J. Gallego-Garrido, G. Dimitriadis, J. R. Wright, Eric Maslen   +3 more
wiley   +1 more source

A Class of Methods for the Analysis of Blade Tip Timing Data from Bladed Assemblies Undergoing Simultaneous Resonances—Part II: Experimental Validation

International Journal of Rotating Machinery, Volume 2007, Issue 1, 2007., 2007
Blade tip timing is a technique for the measurement of vibrations in rotating bladed assemblies. In Part I of this work a class of methods for the analysis of blade tip timing data from bladed assemblies undergoing two simultaneous synchronous resonances was developed.
J. Gallego-Garrido, G. Dimitriadis, I. B. Carrington, J. R. Wright, Eric Maslen   +4 more
wiley   +1 more source

A Low-Cost Sensing Strategy for Blade Tip Timing: An Inductive Proximity Probe Approach

Engineering Proceedings
Blade Tip Timing (BTT) provides a superior long-term blade monitoring solution compared to strain gauges, yet its adoption in lower value turbomachinery remains constrained by sensor costs.
Justin Smith, P. Stephan Heyns, Stephan Schmidt, David H. Diamond   +3 more
doaj   +1 more source

Study on identification of modal parameters of mistuned bladed disks (Identification by use of the frequency response curve and the reduced order model)

Nihon Kikai Gakkai ronbunshu, 2023
To develop turbomachinery blades with high reliability, it is indispensable to verify the natural frequency, damping, resonant stress, etc. under operating condition, and utilize these data in the mechanical design of a new blade.
Yasutomo KANEKO, Toshio WATANABE, Tatsuya FURUKAWA   +2 more
doaj   +1 more source

Breathing crack identification of rotating blades using blade tip timing based on envelope diagram images and optimized CNN model

Journal of Low Frequency Noise, Vibration and Active Control
As a promising non-contact blade vibration monitoring technology, the blade tip timing (BTT) method is crucial for monitoring the operational state of rotating blades in large turbo-machinery through recording vibration signals of blade tips.
Minghao Pan, Yongmin Yang, Fengjiao Guan, Haifeng Hu, Zifang Bian, Wenkang Huang, Bohao Xiao, Ang Li   +7 more
doaj   +1 more source