Results 21 to 30 of about 4,142,971 (284)

On the stationary Cahn-Hilliard equation: Interior spike solutions [PDF]

open access: yes, 1998
We study solutions of the stationary Cahn-Hilliard equation in a bounded smooth domain which have a spike in the interior. We show that a large class of interior points (the "nondegenerate peak" points) have the following property: there exist such ...
Winter, M, Wei, J
core   +1 more source

An Optimization Method of Ambiguity Function Based on Multi-Antenna Constrained and Application in Vehicle Attitude Determination

open access: yesMicromachines, 2021
The global navigation satellite system (GNSS)-based multi-antenna attitude determination method has the advantages of a simple algorithm and no error accumulation with time in long endurance operation.
Yinzhi Zhao   +5 more
doaj   +1 more source

Removal of Zinc from Wastewater through the Reduction Potential Determination and Electrodeposition Using Adsorption-Desorption Solutions [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2020
The rubber product manufacturing industry generates large volumes of wastewater containing on average 10 ppm of zinc. Presently, zinc is removed via a chemical precipitation process generating hazardous precipitate that requires secure disposal.
Gulnaziya Issabayeva   +4 more
doaj   +1 more source

Study of Trivalent Chromium Conversion Coating Formation at Solution—Metal Interface

open access: yesMetals, 2023
The present study employed a tungsten pH microelectrode to study the formation of trivalent chromium conversion (TCC) coatings on Al, AA 2024-T3 aluminum alloy and AZ91D magnesium alloy in SurTec ChromitAL solutions.
Wentao Sun   +7 more
doaj   +1 more source

Calculation of peak shear strength of bentonite in salt solutions

open access: yesYantu gongcheng xuebao, 2019
Bentonite, as a barrier material for high-level waste disposal repositories, acts as a buffer material between waste storage tanks and surrounding rocks.
LI Xiao-yue , XU Yong-fu
doaj   +1 more source

Peak BioBoost | Peak Bio Boost | Supplement Reviews

open access: yes, 2021
Peak BioBoost Examination shows that taking a prebiotic supplement produced using the entire kiwifruit is presumably the best and effective approach to get your every day distribution of prebiotics. https://jparkerjeremy.wixsite.com/peak-bioboost https:
Peak BioBoost
core   +1 more source

Multiwave, Kinky breathers and multi-peak soliton solutions for the nonlinear Hirota dynamical system

open access: yesResults in Physics, 2020
The multi-wave solutions for nonlinear Hirota equation are obtained using logarithmic transformation and symbolic computation using the function method.
K. El-Rashidy   +3 more
doaj   +1 more source

Solution of the peak value problem for Gabor's theory of communication [PDF]

open access: yes2012 International Symposium on Signals, Systems, and Electronics (ISSSE), 2012
Since, for certain bounded signals, the common integral definition of the Hilbert transform may diverge, it was long thought that the Hilbert transform does not exist for general bounded signals. However, using a definition that is based on the ℌ1-BMO(ℝ) duality, it is possible to define the Hilbert transform meaningfully for the space of bounded ...
Holger Boche, Ullrich J. Mönich
openaire   +1 more source

Multi-interior-spike solutions for the Cahn-Hilliard equation with arbitrarily many peaks [PDF]

open access: yes, 2000
We study the Cahn-Hilliard equation in a bounded smooth domain without any symmetry assumptions. We prove that for any fixed positive integer K there exist interior $K$--spike solutions whose peaks have maximal possible distance from the boundary ...
Winter, M, Wei, J
core   +1 more source

The effect of nutrient broth media on PEDOT:PSS gated OECTs for whole-cell bacteria detection

open access: yesBiosensors and Bioelectronics: X, 2022
The organic electrochemical transistor (OECT) is a device of much interest in biological sensing applications, including the detection of various cell types and electrolytes.
Eric Frantz   +3 more
doaj   +1 more source

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