Results 101 to 110 of about 129,078 (307)

Moving Beyond Oligoethers: Polar Side‐Chain Engineering for Aqueous Mixed Ionic–Electronic Conductors

open access: yesAdvanced Functional Materials, EarlyView.
We investigate how side‐chain chemistry and hydrogen bonding affect electrochemical doping in poly(propylenedioxythiophene) polymers. Replacing oligoether side chains with hydroxyl or carboxylic acid groups nearly triples electrochemical conductivity.
Joshua M. Rinehart   +5 more
wiley   +1 more source

PENERAPAN EUCLIDEAN DISTANCE PADA PENCOCOKAN POLA UNTUK KONVERSI CITRA KE TEKS

open access: yesJUTI: Jurnal Ilmiah Teknologi Informasi, 2002
Pencocokan pola merupakan salah satu konsep yang sering dipergunakan dalam pada pencocokan pola. Dalam metode tersebut, citra masukan yang belum diketahui akan dicari kesamaannya dengansekumpulan citra yang disebut sebagai citra template.
Febriliyan Samopa   +1 more
doaj   +1 more source

Advanced methods in fourier transform ion cyclotron resonance mass spectrometry [PDF]

open access: yes
Mass spectrometry (MS) is a powerful analytical technique used to characterize various compounds by measuring the mass-to-charge ratio (m/z). Among different types of mass analyzers, Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR ...
Qi, Yulin
core  

Dual‐Salt Carbothermal Shock Strategy Enabling Ultrafast and Sustainable Regeneration of Spent LiFePO4 Cathode Materials

open access: yesAdvanced Functional Materials, EarlyView.
Lithium iron phosphate (LFP) accounts for over 50% of the global cathode market, underscoring the need for efficient recycling and regeneration. We propose a dual‐salt carbothermal shock (CTS) strategy using LiI and NaI to in situ repair Li vacancies.
Yanjuan Li   +7 more
wiley   +1 more source

A functional program for the fast Fourier transform

open access: yesACM SIGPLAN Notices, 1988
This paper is written as a contribution to the Parallel Reduction Machine Project. Its purpose is to present a functional program for a well-known application of the fundamental algorithmic method Fast Fourier Transform for multiplication of polynomials.
openaire   +2 more sources

Binder Engineering Suppresses Jahn–Teller‐Driven Mn Dissolution and Enables High‐Loading MnO2 Cathodes for Aqueous Zn‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A Zn2+‐coordinated poly(vinylidene fluoride) binder is shown to suppress Jahn–Teller‐driven Mn dissolution while improving dispersion, wettability, and structural integrity in thick MnO2 cathodes. This simple binder‐engineering strategy enables high‐loading aqueous Zn‐ion batteries with enhanced areal capacity, cycling stability, and practical promise ...
Insung Jang, Geun Yoo, Geon−Hyoung An
wiley   +1 more source

Theory and realization of novel algorithms for random sampling in digital signal processing [PDF]

open access: yes, 1996
Random sampling is a technique which overcomes the alias problem in regular sampling. The randomization, however, destroys the symmetry property of the transform kernel of the discrete Fourier transform.
Lo, King Chuen
core  

The Ni,Cd Heteroatoms‐Initiated Synergistic Tuning of Electron Configuration in Fe2VO4 Nanosheets Electrocatalysts to Profoundly Stabilize Alkaline Seawater Electrolysis

open access: yesAdvanced Functional Materials, EarlyView.
A Ni,Cd‐codoped Fe2VO4/NF bifunctional electrocatalyst is rationally designed for efficient seawater electrolysis. Synergistic effect modulates electron configuration, optimizes intermediates adsorption, stabilizes high‐valence Fe/V sites, and repels chloride ions to suppress corrosion and side reactions, thus contributing to performance improvement of
Weiguo Huang   +15 more
wiley   +1 more source

Image feature analysis using the Multiresolution Fourier Transform [PDF]

open access: yes
The problem of identifying boundary contours or line structures is widely recognised as an important component in many applications of image analysis and computer vision.
Davies, Andrew Richard
core  

Transformada rápida de Fourier-FFT, métodos de aceleração: estudo de sinais ionosféricos através da análise de Fourier e aplicação no grupo de radiociências de Gaspar [PDF]

open access: yes, 1983
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.
Rauen, Antônio de Souza
core  

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