Results 51 to 60 of about 74,025 (266)

Adaptive Observer for Coupled Wave PDE and Infinite ODE With Sampled Data and Unknown Input: Application to Brain Hemodynamics Estimation

International Journal of Adaptive Control and Signal Processing, EarlyView.
This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir, Sarah Mechhoud, Taous‐Meriem Laleg‐Kirati   +2 more
wiley   +1 more source

A comparison of the predictions of a finite element model and multiscale model for a rough MEMS electrical contact

, 2013
Rough surface contact is difficult to model effectively due to multiple scales of detail that need to be considered. This work presents the results of a multiscale rough surface contact model in comparison to a finite element based deterministic model ...
Hong Liu, Dimitri Leray, Jackson, Robert L., Leray, Dimitri, Liu, Hong, Robert L. Jackson   +5 more
core   +1 more source

ELECTRICAL POLARITY AND AUXIN TRANSPORT [PDF]

Plant Physiology, 1937
The polar basal transport of the growth substances (auxins, growth hormones) in plants is a well known phenomenon, demonstrated first by Went (81), and studied in detail by van der Weij (78, 80). These investigators used the Avena (oat) coleoptile.1 That the phenomenon is more or less general is indicated by the polar transport of auxin in roots ...
openaire   +4 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Electrical transport of SiNWs array after covalent attachment of new organic functionalities

, 2012
Modification of the electrical transport of a random network of silicon nanowires assembled on n‐ silicon support, after silicon nanowires functionalization by chlorination/alkylation procedure , is here described and discussed.
Paolo Francesco Ambrico, Ambrico, Paolo Francesco, Ambrico, Marianna, Rosa di Mundo, di Mundo, Rosa, Marianna Ambrico   +5 more
core   +1 more source

Investigation of carbon nanotube quantum dots connected to ferromagnetic leads [PDF]

, 2015
The implementation of ferromagnetic contacts in complex nanoelectronic devices, e.g. in spin-valves bears great potential for applications and fundamental investigations. Spin-valves are structures with two magnetic contacts and a non-magnetic medium (
Samm, Julia
core   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

Silicon multi-branch nanostructures for decent field emission and excellent electrical transport

, 2011
We report on the synthesis, field electron emission and electric transport properties of a novel nanomaterial: ordered arrays of crystallized silicon multi-branch nanostructures.
Golberg, Dmitri, Yihua Gao, Dmitri Golberg, Chunyi Zhi, Gao, Yihua, Sun, M., Gao, Y., Golberg, D., Zhi, Chunyi, Min Sun, Sun, Min, Bando, Y., Yoshio Bando, Bando, Yoshio, Zhi, C.   +14 more
core   +1 more source

Electrical Transport Interplay with Charge Density Waves, Magnetization, and Disorder Tuned by 2D van der Waals Interface Modification via Elemental Intercalation and Substitution in ZrTe₃, 2H-TaS₂, and Cr₂Si₂Te₆ Crystals

Nanomaterials
Electrical transport in 2D materials exhibits unique behaviors due to reduced dimensionality, broken symmetries, and quantum confinement. It serves as both a sensitive probe for the emergence of coherent electronic phases and a tool to actively ...
Xiao Tong, Yu Liu, Xiangde Zhu, Hechang Lei, Cedomir Petrovic   +4 more
doaj   +1 more source