Results 61 to 70 of about 103,948 (343)

Pattern Formation in Non‐Equilibrium Architected Materials

Advanced Materials Technologies, EarlyView.
This article demonstrates an artificial mechanical system ‐ a robotic metamaterial ‐ as an accessible and versatile platform within which to explore and prescribe the reaction‐diffusion driven pattern formation hitherto associated with comparatively less accessible and versatile non‐equilibrium biological and chemical systems.
Vinod Ramakrishnan, Michael J. Frazier
wiley   +1 more source

Five-Axis Machine Tool Condition Monitoring Using dSPACE Real-Time System [PDF]

, 2012
This paper presents the design, development and SIMULINK implementation of the lumped parameter model of C-axis drive from GEISS five-axis CNC machine tool.
Fletcher, Simon, Longstaff, Andrew P., Myers, Alan, Pislaru, Crinela, Sztendel, S.   +4 more
core   +1 more source

Millisecond‐Switching Dual‐Band/Dual‐Polarization Ka‐Band Wavefront Control Enabled by a Complementary Liquid‐Crystal Metasurface

Advanced Materials Technologies, EarlyView.
An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim, Donggeun An, Hyunjae Shin, Youngno Youn, Wonbin Hong   +4 more
wiley   +1 more source

Improvement of the KarstMod modelling platform for a better assessment of karst groundwater resources [PDF]

Hydrology and Earth System Sciences
Hydrological models are fundamental tools for the characterization and management of karst systems. We propose an updated version of KarstMod, software dedicated to lumped-parameter rainfall–discharge modelling of karst aquifers.
V. Sivelle, G. Cinkus, G. Cinkus, N. Mazzilli, D. Labat, B. Arfib, N. Massei, Y. Cousquer, D. Bertin, H. Jourde   +9 more
doaj   +1 more source

Evaluation of two complementary modeling approaches for fiber-reinforced soft actuators

ROBOMECH Journal, 2022
Although robots are increasingly found in a wide range of applications, their use in proximity to humans is still fraught with challenges, primarily due to safety concerns.
Soheil Habibian, Benjamin B. Wheatley, Suehye Bae, Joon Shin, Keith W. Buffinton   +4 more
doaj   +1 more source

Port-Hamiltonian formulation of shallow water equations with Coriolis force and topography [PDF]

, 2008
We look into the problem of approximating the shallow water equations with Coriolis forces and topography. We model the system as an infinite-dimensional port-Hamiltonian system which is represented by a non-constant Stokes-Dirac structure. We here employ
Ambati, V.R., Pasumarthy, R., Schaft, A.J. van der   +2 more
core   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Modelling of heat emitters embedded within third order lumped parameter building envelope model [PDF]

, 2012
A dynamic modelling approach for heat emitters embedded within an existing third order lumped parameter building envelope model is reported in this work.
Edge, Jerry, Fong, Joshua, Potter, Steve, Tindale, Andy, Underwood, Chris   +4 more
core  

Nonlinear analysis of spacecraft thermal models [PDF]

, 2010
We study the differential equations of lumped-parameter models of spacecraft thermal control. Firstly, we consider a satellite model consisting of two isothermal parts (nodes): an outer part that absorbs heat from the environment as radiation of various ...
A. Berman, A.A. Andronov, A.H. Nayfeh, A.H. Nayfeh, C. Arduini, C.A. Wingate, C.J. Savage, F. Kreith, H.B. Callen, I. Pérez-Grande, I. Shafarevich, J. Gaite, J. Guckenheimer, J. Hymers, J.-P. Tignol, J.-R. Tsai, José Gaite, M. Hazewinkel, M.A. Gadalla, M.W. Hirsch, P.G. Drazin, R.A. Henderson, V.I. Arnold, W. Hurewicz   +23 more
core   +1 more source

Modeling and Improving Geometric Accuracy in Projection Multiphoton Lithography

Advanced Optical Materials, EarlyView.
A numerical framework describing the optical and photochemical processes is developed to elucidate the origins of geometric deviations in projection multiphoton lithography. The results indicate that oxygen diffusion and inhibition, and DMD diffraction, lead to geometric distortions.
Anwarul Islam Akash, Jason E. Johnson, Xianfan Xu   +2 more
wiley   +1 more source