Results 81 to 90 of about 121,443 (210)

Stronger effect of temperature on body growth in cool than in warm populations suggests lack of local adaptation

Ecography, EarlyView.
Body size is a key functional trait that has declined in many biological communities, partly due to changes in individual growth rates in response to climate warming. However, our understanding of growth responses in natural populations is limited by relatively short time series without large temperature contrasts and unknown levels of adaptation to ...
Max Lindmark, Jan Ohlberger, Anna Gårdmark   +2 more
wiley   +1 more source

The prognostic value of the Dandel's index in patients undergoing tricuspid transcatheter edge‐to‐edge repair

European Journal of Heart Failure, EarlyView.
Load adaptation indices and concepts. An adapted RV in response to overload increases wall thickness to normalize wall stress and preserve function and morphology. If hemodynamic overload is sustained, it can progress to a maladaptive state and lead eventually to heart failure. CI, cardiac index; Ees, ventricular elastance; Ea, arterial elastance; MPAP,
Mohammad Kassar, Nicolas Brugger, Lukas Stolz, Muhammed Gerçek, Vera Fortmeier, Karl‐Patrik Kresoja, Jennifer von Stein, Benedikt Koell, Wolfgang Rottbauer, Bjoern Goebel, Paolo Denti, Paul Achouh, Tienush Rassaf, Manuel Barreiro‐Perez, Peter Boekstegers, Andreas Rück, Monika Zdanyte, Marianna Adamo, Flavien Vincent, Philipp Schlegel, Ralph‐Stephan von Bardeleben, Mirjam G. Wild, Stefan Toggweiler, Mathias H. Konstandin, Eric Van Belle, Marco Metra, Tobias Geisler, Rodrigo Estévez‐Loureiro, Peter Luedike, Nicole Karam, Francesco Maisano, Philipp Lauten, Mirjam Kessler, Daniel Kalbacher, Christos Iliadis, Philipp Lurz, Stephan Windecker, Jörg Hausleiter, Volker Rudolph, Fabien Praz   +39 more
wiley   +1 more source

Dielectrophoresis Tutorial: Inspired by Hatfield's 1924 Patent and Boltzmann's Theory and Experiments of 1874

ELECTROPHORESIS, EarlyView.
ABSTRACT The first patent to describe dielectrophoresis (DEP) as a means and process to separate particles from a mixture was granted by the US Patent Office to Henry Stafford Hatfield in 1924. The novel methods of sample preparation and designs of electrode geometry covered by the patent's disclosures and claims describe the basis for most present‐day
Ronald Pethig
wiley   +1 more source

Electrohydrodynamic Vortex Imaging: A New Tool for Understanding Mass Transfer in Surface‐Based Biosensors

ELECTROPHORESIS, EarlyView.
ABSTRACT Surface‐based biosensor performance is generally limited by mass transfer, especially when detecting low‐concentrated species. To address this, dielectrophoresis (DEP) and alternating current electroosmosis (ACEO) can be combined to enhance mass transfer, increasing the target concentration near the sensor.
Pauline Zimmer, Oleh Andreiev, Marion Costella, Emmanuelle Laurenceau, Jean‐François Bryche, Jean‐Pierre Cloarec, Michael Canva, Marie Frénéa‐Robin, Julien Marchalot   +8 more
wiley   +1 more source

Eigenfunctions of Laplace operators [PDF]

Bulletin of the American Mathematical Society, 1972
openaire   +2 more sources

On the fractional Laplace-Bessel operator

AIMS Mathematics
<p>In this paper, we propose a novel approach to the fractional power of the Laplace-Bessel operator $ \Delta_{\nu} $, defined as</p><p><disp-formula> <label/> <tex-math id="FE1"> \begin{document}$ \Delta_{\nu} = \sum\limits_{i = 1}^{n}\frac{\partial^2}{\partial x_{i}^2} + \frac{\nu_i}{x_{i}}\frac{\partial}{\partial
Borhen Halouani, Fethi Bouzeffour
openaire   +2 more sources

Mod Tanh‐Activated Physical Neural Network MPPT Control Algorithm for Varying Irradiance Conditions

Energy Science &Engineering, EarlyView.
The proposed MPPT controller (CRT‐POA‐PID) is implemented to enhance power efficiency in the PV system. The beta‐distributed point estimation technique is used for mismatch factor correction, improving performance. Simulations show a 98.42% efficiency improvement, a 4.54 dB reduction in total harmonic distortion, and faster convergence compared to ANN ...
Khuong Nguyen‐Vinh, Surender Rangaraju, Michal Jasinski   +2 more
wiley   +1 more source

Coupling Stability and Multi‐Frequency Transient Characteristics of a Variable Speed Pumped Storage Power Station Under Generating Mode

Energy Science &Engineering, EarlyView.
ABSTRACT Coupling stability and multi‐frequency transient characteristics of variable speed pumped storage power station (VSPSPS) under generating mode are main topics of this paper. Firstly, the overall model of VSPSPS is established and the coupling stability analysis of VSPSPS is carried out. Then, multi‐frequency transient characteristics of VSPSPS
Rui Cao, Wencheng Guo
wiley   +1 more source

Vortex Panel Method in Axisymmetric Cylindrical Coordinates: Inviscid Formulation

International Journal for Numerical Methods in Fluids, EarlyView.
An efficient numerical method for solving potential flows past axisymmetric objects is proposed. Green's function corresponding to the governing equation is derived and analytically verified. Using the derived Green's function, the vortex panel method is constructed, and its validity was confirmed through comparison with results obtained by other ...
Suguru Shiratori, Kosuke Kimata, Masaya Katoh, Hideaki Nagano, Kenjiro Shimano   +4 more
wiley   +1 more source

A three‐phase three‐level converter with shared flying capacitors

IET Power Electronics, EarlyView., 2023
Three‐phase multilevel converters use a high number of components which increases their size. As specific weight reduction is a work of interest for embedded system applications, this paper presents a topology aiming to optimize volume and mass for a three‐level three‐phase inverter. The number of passive and active components is reduced thanks to the ‘
Maxime Pain, Guillaume Gateau, Jean‐Marc Blaquiere   +2 more
wiley   +1 more source