Results 111 to 120 of about 94,319 (292)
SmartBot, EarlyView.Ionogels dynamically and functionally couple ionic liquids with polymer networks, enabling multiscale programmable deformation and motion under electrical, magnetic, optical, thermal, humidity, and chemical stimuli. This article systematically elucidates the constituent components, structural design, and multiscale actuation mechanisms of ionogel ...
Dezhou Cao +5 more
wiley +1 more source
Broadband Noise Reduction of a Two-Stage Fan with Wavy Trailing-Edge Blades
AerospaceIn this paper, a numerical investigation is performed to study the broadband noise of a fan stage with wavy trailing-edge blades. A study of the wavelength and ratio of amplitude to wavelength (H/L) is conducted to better understand the noise reduction ...
Ruibiao Gao +4 more
doaj +1 more source
Theoretical studies of tone noise from a fan rotor [PDF]
An analytical study was made of some possible rotor alone noise sources of dipole, quadrapole and monopole characters which generate discrete tone noise.
Chu, W. T. +2 more
core +1 more source
Strategic Management Journal, EarlyView.Abstract Research Summary Despite the importance of resource reallocation in shaping a variety of strategic outcomes, strategy scholars have paid only limited attention to the processes by which firms reallocate their resources across successive systemic innovations.
Gino Cattani +2 more
wiley +1 more source
Noise of a model helicopter rotor due to ingestion of turbulence [PDF]
A theoretical and experimental investigation of the noise of a model helicoper rotor due to ingestion of turbulence was conducted. Experiments were performed with a 0.76 m dia, articulated model rotor for a range of inflow turbulence and rotor operating ...
Amiet, R. K., Paterson, R. W.
core +1 more source
Vibrational Exfoliation of 2D Materials
Small, EarlyView.Vibrational energy folds, fractures and exfoliates atomically and molecularly thin materials. Combining experimentation and computational methods, this unique vibrational synthesis pathway is revealed. This process overcomes barriers of existing approaches by processing 1000 g/L dispersions without loss in yield.
Aadam Rabani +5 more
wiley +1 more source
The status of rotor noise technology: One man's opinion [PDF]
The problem of establishing the state of the technology is approached by first identifying the various characteristics of rotor noise and then assessing the state of technology in understanding and predicting the most important of these rotor noise ...
White, R. P., Jr.
core +1 more source
Small, EarlyView.ABSTRACT The rapid expansion of the Internet of Things (IoT) and wearable electronics necessitates sustainable power sources to replace the limited electrochemical battery. While mechanical energy harvesting offers a promising solution, traditional harvesters face challenges of irregular and low−frequency environmental sources. This review presents the
Yongbin Han +2 more
wiley +1 more source
Wake Geometry Effects on Rotor Blade-Vortex Interaction Noise Directivity [PDF]
Acoustic measurements from a model rotor wind tunnel test are presented which show that the directionality of rotor blade vortex interaction (BVI) noise is strongly dependent on the rotor advance ratio and disk attitude.
Marcolini, Michael A. +3 more
core +1 more source
Prostate cancer diagnosis using plasma extracellular vesicles isolated via aqueous two‐phase systems
VIEW, EarlyView.Abstract Prostate cancer (PCa) is the second most prevalent cancer in men, with early detection and precise staging remaining critical for improving outcomes. While PSA tests and biopsies are widely used, they suffer from low specificity and often lead to unnecessary procedures.
Yongmin Kwon +6 more
wiley +1 more source