Results 71 to 80 of about 16,691 (298)

Metal‐Organic Open‐Framework Molecular Magnet Based on Vanadium Hexacyanoferrate Prussian Blue Analogs as Cathode Material for Advanced Potassium Ion Aqueous Battery

Advanced Energy and Sustainability Research, EarlyView.
An aqueous potassium‐ion battery using vanadium hexacyanoferrate (VHCF) as the cathode and graphite as the anode is presented. During charge/discharge, K+ ions shuttle between electrodes through the electrolyte, enabling energy storage. The VHCF material demonstrates high capacity (≈121 mAh g−1), fast kinetics, and eco‐friendliness, making it a ...
Nilasha Maiti, Pramod Bhatt, Mayuresh D. Mukadam, Manoj K. Sharma, Sher Singh Meena, Himal Bhatt, Katsuya Inoue, Kenya Shimada, Masahiro Sawada, Frank M. F. de Groot, Seikh Mohammad Yusuf   +10 more
wiley   +1 more source

A Biodegradable Radical Polymer Enables High‐Performance, Physically Transient Organic Memory

Angewandte Chemie, EarlyView.
A stable radical polymer with intrinsic memristivity and on‐demand physical transience is presented. We leverage the nonconjugated nature of the radical polymer for a systematic molecular engineering. The polymer enabled a high‐performance organic memristive device comparable to inorganic transient memory devices, now equipped with additional ...
Jaehyoung Ko, Soeun Kim, Daeun Kim, Taeho Lim, Soyeong Jin, Youngdo Jeong, Yongho Joo, Sangho Cho   +7 more
wiley   +2 more sources

Laws of the iterated logarithm for a class of iterated processes [PDF]

Statistics & Probability Letters, 2009
Let $X=\{X(t), t\geq 0\}$ be a Brownian motion or a spectrally negative stable process of index $10$. This establishes the lower bound in the law of the iterated logarithm which we could not prove with the techniques of our paper \cite{MNX}. We also obtain exact small ball probability for $X(E_t)$ using ideas from \cite{aurzada}.
openaire   +3 more sources

Volatility analysis and forecasting of vegetable prices using an ARMA‐GARCH model: An application of the CF filter and seasonal adjustment method to Korean green onions

Agribusiness, EarlyView.
Abstract The vegetable market experiences significant price fluctuations due to the complex interplay of trend, cyclical, seasonal, and irregular factors. This study takes Korean green onions as an example and employs the Christiano–Fitzgerald filter and the CensusX‐13 seasonal adjustment methods to decompose its price into four components: trend ...
Yiyang Qiao, Byeong‐il Ahn
wiley   +1 more source

Limit theorems for multidimensional renewal sets

, 2017
Consider multiple sums $S_n$ on the $d$-dimensional integer grid,which are generated by i.i.d.\ random variables with a positive expectation. We prove the strong law of large numbers, the law of the iterated logarithm and the distributional limit theorem
Ilienko, Andrii, Molchanov, Ilya
core   +1 more source

Model‐based fault diagnosis in closed‐loop safety‐critical chemical reactors: An experimental study

AIChE Journal, EarlyView.
Abstract This experimental study investigates fault detection and estimation in a continuous stirred‐tank reactor (CSTR) system under closed‐loop feedback control, including an analysis of different manipulative inputs for temperature regulation. A novel fault diagnosis approach is proposed, combining residual signal analysis and T2 statistic for real ...
Pu Du, Benjamin Wilhite, Costas Kravaris
wiley   +1 more source

What to Make and How to Make It: Combining Machine Learning and Statistical Learning to Design New Materials

Advanced Intelligent Discovery, EarlyView.
Combining machine learning and probabilistic statistical learning is a powerful way to discover and design new materials. A variety of machine learning approaches can be used to identify promising candidates for target applications, and causal inference can help identify potential ways to make them a reality.
Jonathan Y. C. Ting, Amanda S. Barnard
wiley   +1 more source

Limit theorems for random Dirichlet series: boundary case

Modern Stochastics: Theory and Applications
Buraczewski et al. (2023) proved a functional limit theorem (FLT) and a law of the iterated logarithm (LIL) for a random Dirichlet series ${\textstyle\sum _{k\ge 2}}\frac{{(\log k)^{\alpha }}}{{k^{1/2+s}}}{\eta _{k}}$ as $s\to 0+$, where $\alpha \gt -1/2$
Alexander Iksanov, Ruslan Kostohryz
doaj   +1 more source

Morphy: A Compliant and Morphologically Aware Flying Robot

Advanced Intelligent Systems, EarlyView.
This study presents Morphy, a 25.2 cm‐wide, 260 g aerial robot with flexible, sensorized joints that enable it to withstand high‐speed collisions and squeeze through narrow spaces. Powered by an adaptive control scheme exploiting real‐time morphology feedback, Morphy demonstrates resilience in trajectory tracking, collision, and impact recovery and ...
Paolo De Petris, Morten Nissov, Kostas Alexis   +2 more
wiley   +1 more source

Oscillation of generalized differences of H\"older and Zygmund functions

, 2016
In this paper we analyze the oscillation of functions having derivatives in the H\"older or Zygmund class in terms of generalized differences and prove that its growth is governed by a version of the classical Kolmogorov's Law of the Iterated Logarithm ...
Castro, Alejandro J., Llorente, José G., Nicolau, Artur   +2 more
core   +1 more source