Leppä, Kersti Tang, Yu Ogée, Jérôme Launiainen, Samuli Kahmen, Ansgar Kolari, Pasi Sahlstedt, Elina Saurer, Matthias Schiestl-Aalto, Pauliina Rinne-Garmston, Katja T
...
Published in
The New phytologist
We explore needle sugar isotopic compositions (δ18 O and δ13 C) in boreal Scots pine (Pinus sylvestris) over two growing seasons. A leaf-level dynamic model driven by environmental conditions and based on current understanding of isotope fractionation processes was built to predict δ18 O and δ13 C of two hierarchical needle carbohydrate pools, acco...
Munoz Tamayo, Rafael Tedeschi, Luis O.
Constructing dynamic mathematical models of biological systems requires estimating unknown parameters from available experimental data, usually using a statistical fitting procedure. This procedure is usually called parameter identification, parameter estimation, model fitting, or model calibration. In animal science, parameter identification is of...
Aliverti, Emanuele Russo, Massimiliano
Published in
Statistics in medicine
We analyze repeated cross-sectional survey data collected by the Institute of Global Health Innovation, to characterize the perception and behavior of the Italian population during the Covid-19 pandemic, focusing on the period that spans from April 2020 to July 2021. To accomplish this goal, we propose a Bayesian dynamic latent-class regression mod...
Li, Shenlong Pang, Ruikun Liu, Jing
Published in
Journal of Vibroengineering
Planetary gear systems are widely used in wind power, ships, aircraft, and construction machinery, etc. In the planetary gear system, when the eccentricity error exists in the planetary gear, the vibrations of the whole system should be affected. However, the influence of the eccentricity error was rarely considered in the previous dynamic models. ...
Alaoui, Merouane Iratni, Abdelhamid Alshammari, Obaid S. Hafaifa, Ahmed Colak, Ilhami Guemana, Mouloud
Published in
Strojnícky časopis - Journal of Mechanical Engineering
This work is interested in studying the vibrations’ stability in gas turbines, compared to a dynamic model of the Jeffcott rotor, the parameters of the gas turbine will be estimated for the purpose of developing a mathematical model which points out the behavior of the turbine rotor in virtue of the data of actual vibration measurements. The additi...
Lee, Hsin-Ju Graham, Simon J Kuo, Wen-Jui Lin, Fa-Hsuan
Published in
Human brain mapping
The ballistocardiogram (BCG), the induced electric potentials by the head motion originating from heartbeats, is a prominent source of noise in electroencephalography (EEG) data during magnetic resonance imaging (MRI). Although methods have been proposed to suppress the BCG artifact, more work considering the variability of cardiac cycles and head ...
Li, Liang Guo, Xian Liu, Ye Zhang, Dingguo Liao, Wei-Hsin
Published in
Smart Materials and Structures
Ionic polymer metal composite (IPMC) is a smart material with low driving voltage, high energy conversion, light weight and simple structure. It is suitable for driving the tail fin of small bionic fish. Actuators made of this material are quite flexible, and they are laborious to accurately describe the complex deformation of structures. Absolute ...
Lu, Guangbao Liu, Jun Zheng, Qirong Li, Yonggang
Published in
Frontiers in Materials
The total ionizing dose (TID) effect is one of the main causes of the performance degradation/failure of semiconductor devices under high-energy γ-ray irradiation. In special, the concentration of doubly-hydrogenated oxygen vacancy (a case study of V o γ H 2 ) in the oxide layer seriously exacerbates the TID effect. Therefore, we developed a dynami...
Zou, Qianqian Zhou, Chao Lu, Ben Liao, Xiaocun Zhang, Zhuoliang
Published in
Bioinspiration & Biomimetics
Undulation regulation in a robotic fish propelled by a passive flexible tail is more similar to that of a natural fish than with a rigid tail, owing to the smooth curvature of the flexible tail. Moreover, it has been observed that fish change the stiffness of their bodies to adapt to various swimming states. Inspired by this, a stiffness optimizati...
Zou, Jiang MacLean, James D J Ren, Jieji Aphale, Sumeet S Gu, Guoying
Published in
Smart Materials and Structures
Dielectric elastomer actuators (DEAs) usually suffer from rate-dependent viscoelastic nonlinearity, which manifests as hysteresis in their deformation cycles, leading to huge challenges in their modeling and control. In this work, we propose a model-free, proxy-based, sliding-mode tracking control approach to mitigate viscoelastic nonlinearity, ach...
