Results 91 to 100 of about 29,026 (312)

Modeling and Experimenting [PDF]

, 2009
Experimental activity is traditionally identified with testing the empirical implications or numerical simulations of models against data. In critical reaction to the ‘tribunal view’ on experiments, this essay will show the constructive contribution of ...
Peschard, Isabelle
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Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

Advanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Non-Acoustic Detection and Localization of Large Underwater Targets for Unmanned Platforms: A Review of Wake-Based, Magnetic, and Gravity Anomaly Methods

Drones
The detection and localization of large underwater targets are important for maritime security, marine resource exploration, and underwater situational awareness, while the increasing acoustic stealth of underwater vehicles has limited conventional ...
Hexing Zheng, Haitao Gu, Tianzhu Gao
doaj   +1 more source

Monin–Obukhov Similarity Theory for Modeling of Wind Turbine Wakes under Atmospheric Stable Conditions: Breakdown and Modifications

Applied Sciences, 2019
Monin−Obukhov similarity theory (MOST) overestimates the mean vertical velocity gradient in some atmospheric stable conditions, i.e., Richardson number R f < 0.25 .
Xingxing Han, Deyou Liu, Chang Xu, Wenzhong Shen, Linmin Li, Feifei Xue   +5 more
doaj   +1 more source

Predicting blade vortex interaction, airloads and acoustics using the vorticity transport model [PDF]

, 2008
Interactions between the blades and vortical structures within the wake of a helicopter rotor are a significant source of impulsive loading and noise, particularly in descending flight.
Kelly, Mary E., Brown, R.E., Duraisamy, K., Kelly, M.E., Duraisamy, Karthikeyan, Brown, Richard   +5 more
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Modular Control of PEG‐Poly(2‐Oxazoline) Co‐Assembly Enables Tunable Aggregate Properties for Intraocular Pressure Management

Advanced Healthcare Materials, EarlyView.
A thermo‐responsive poly(2‐oxazoline)‐based injectable formulation is developed to modulate intraocular pressure (IOP) in both normal and hypotonic eyes. By adjusting the PEG content, the aggregation behavior is finely tuned, enabling IOP elevation without long‐term deposition.
Yuji Tanaka, Shohei Morikawa, Shigehito Osawa   +2 more
wiley   +1 more source

Helicopter tail rotor thrust and main rotor wake coupling in crosswind flight

, 2010
The tail rotor of a helicopter with a single main rotor configuration can experience a significant reduction in thrust when the aircraft operates in crosswind flight. Brown’s vorticity transport model has been used to simulate a main rotor and tail rotor
Fletcher, Timothy M., Timothy M. Fletcher, Richard E. Brown, Brown, Richard   +3 more
core   +1 more source

Multidimensional Cellular Micro‐Compartments to Model Invasive Lobular Carcinoma Dormancy

Advanced Healthcare Materials, EarlyView.
Invasive lobular carcinoma (ILC) is an understudied subtype of breast cancer that is susceptible to late recurrences. In this study, micro‐compartmentalization techniques spanning multiple dimensions, including 2D, pseudo‐3D, and 3D, are integrated to uncover the mechanisms underlying ILC dormancy, revealing the central role of p27Kip1.
Xilal Y. Rima, Sarmila Majumder, Divya S. Patel, Chunyu Hu, Hong Li, Xin Huang, Kim Truc Nguyen, Jacob Doon‐Ralls, Chiranth K. Nagaraj, Mangesh D. Hade, Setty M. Magaña, Eswar Shankar, Xiaoli Zhang, Daniel G. Stover, Bhuvaneswari Ramaswamy, Eduardo Reátegui   +15 more
wiley   +1 more source

Modeling the effects of active wake mixing on wake behavior through large-scale coherent structures [PDF]

Wind Energy Science
The use of active wake mixing (AWM) to mitigate downstream turbine wakes has created new opportunities for reducing power losses in wind farms. However, many current analytical or semi-empirical wake models do not capture the flow instabilities that are
L. Cheung, G. Yalla, P. Mohan, A. Hsieh, K. Brown, N. deVelder, D. Houck, M. T. Henry de Frahan, M. Day, M. Sprague   +9 more
doaj   +1 more source

An experimental and numerical investigation of a turbulent airfoil wake in a 90° curved duct

, 2002
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.A wake behind solid bodies subjected to extra rates of strain due to streamwise curvature and pressure gradient occurs in numerous engineering applications.
Piradeepan, Nadarajah
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