Results 101 to 110 of about 10,995,154 (282)
On some iterative methods for solving nonlinear equations
Journal of Numerical Analysis and Approximation Theory, 1994 Let \(h(x):=f(x)+g(x)=0\), with \(f\) differentiable and \(g\) continuous, where \(f,g,h:X \rightarrow X\), \(X\) a Banach space. The Newton method cannot be applied for solving \(h(x)=0\), and we propose an iterative method for solving the nonlinear
Emil Cătinaş
doaj +2 more sources
Adsorption‐Engineered Hydrocarbon Ionomers for Durable Proton‐Exchange Membrane Fuel Cells
Advanced Materials, EarlyView.Hydrocarbon ionomers suffer from oxidation‐driven interfacial degradation in PEM fuel cell cathodes, leading to catalyst instability. Here, adsorption‐engineered poly(fluorene) ionomers decouple interfacial anchoring from oxidative degradation, enabling strong catalyst–ionomer interactions while resisting electrochemical oxidation.
Heemin Park +14 more
wiley +1 more source
Metastable Polymers for Circular 3D Printing
Advanced Materials, EarlyView.3D‐printed polymers are usually permanent and hard to recycle. Here, metastable polymers are designed to fall apart on demand. A chemical trigger unzips the printed material back into its original building blocks within minutes at room temperature.
Johannes Markhart +2 more
wiley +1 more source
, 2014 Cubic polynomial, Newton's MethodSteps of the secant root finding method for a cubic polynomial. The secant method for numerical root finding of the functions f consists of the steps xk+1= xk – f(xk)(xk-xk-1)/(f(xk)
Trott, Michael
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Poly(Alkoxythiophene) Rod‐Coil Block Copolymers for Organic Electrochemical Transistors
Advanced Materials, EarlyView.We present the first synthesis of poly(3‐alkoxythiophene) rod‐coil block copolymers as a new architecture for OMIECs. Incorporating PEG and PLLA coils can enhance device performance beyond the homopolymer. The figure‐of‐merit depends uniquely on coil length.
Junfu Tian +23 more
wiley +1 more source
Numerical Study of Secant Method for Finding the Optimum RF Coil Length in MRI Systems Using Python
Journal of Applied Informatics and ComputingDetermining the coil length l to achieve the desired target inductance Ltarget involves nonlinear and transcendental RF coil design equations. The ideal solenoid coil model does not align with real-world conditions, therefore, it is corrected using the ...
Tatik Juwariyah +2 more
doaj +1 more source
Advanced Materials, EarlyView.A solid‐state ionic actuator integrates sensing, actuation, and memory within one material. A brief UV pulse induces long‐lasting deformation via coupled network rearrangement, dehydration, and rehydration, while ionic redistribution enables self‐powered sensing, supporting multifunctional, energy‐efficient soft robotic functions without continuous ...
Yong Min Kim +5 more
wiley +1 more source
A unified convergence analysis for secant-type methods
, 2014 We present a unified local and semilocal convergence analysis for secant-type methods in order to approximate a locally unique solution of a nonlinear equation in a Banach space setting.
Argyros, Ioannis Konstantinos +1 more
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Lithography‐Compatible Conductive Metal–Organic Frameworks for Scalable Electronics
Advanced Materials, EarlyView.Conductive MOF thin films are integrated as gate electrodes in semiconductor devices through a photolithography‐compatible patterning strategy. CVD‐grown 2D MOF thin films enable stable operation across bottom‐gate MoS2/MoTe2 field‐effect transistors and top‐gate IGZO arrays, highlighting the potential of conductive MOFs as functional electronic ...
Hyeonwoo Lee +9 more
wiley +1 more source
A secant method for nonsmooth optimization
, 2007 The notion of a secant for locally Lipschitz continuous functions is introduced and a new algorithm to locally minimize nonsmooth, nonconvex functions based on secants is developed.
A Bagirov (13285401) +1 more
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