Results 61 to 70 of about 9,736 (218)

FENet: A Physics‐Informed Dynamics Prediction Model of Pantograph‐Catenary Systems in Electric Railway

open access: yesIET Intelligent Transport Systems, Volume 19, Issue 1, January/December 2025.
In this manuscript, we proposed physics‐informed surrogate model, called FENet, for the first time to solve the interaction of pantograph‐catenary system. In recent years, much progress has been achieved in PCS modelling solutions. Existing solutions, however, suffer from two significant limitations: 1) An urgent concern arises regarding the ...
Wenping Chu   +3 more
wiley   +1 more source

Dynamics of Variable Stator Vane Adjustment Mechanism Considering the Flexibility of Linkage

open access: yesInternational Journal of Aerospace Engineering, Volume 2025, Issue 1, 2025.
The variable stator vane adjustment mechanism plays a vital role in preventing the occurrence of surge due to its complex multistage linkage mechanism. Initially, the flexible body is modeled using the absolute nodal coordinate formulation method, followed by the formulation of rigid–flexible coupled dynamics equations using the Lagrange equations of ...
Hao Zhang   +5 more
wiley   +1 more source

Dynamics Modelling and Simulation for Deployment Characteristics of Mesh Reflector Antennas

open access: yesApplied Sciences, 2020
The dynamics of mesh reflectors are characterized by large deformation when antennas undergo a large motion in the deployment process. In this work, absolute node coordinate formulation (ANCF), with the merit of precise description of large deformation ...
Xin Jiang, Zhengfeng Bai
doaj   +1 more source

Regulation of the Aspergillus nidulans cytochrome C gene : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Molecular Genetics at Massey University, Palmerston North, New Zealand [PDF]

open access: yes, 1997
The filamentous fungus Aspergillus nidulans has been genetically and biochemically well-characterised and thus provides an attractive model for studies on the regulation of eukaroytic gene expression.
McGlynn, Linda Joy
core  

Application‐Oriented Modeling of Soft Actuator Ionic Polymer–Metal Composites: A Review

open access: yesAdvanced Intelligent Systems, Volume 6, Issue 3, March 2024.
From the perspective of model function, this article reviews the improvement process of three types models of ionic polymer–metal composite (IPMC) actuators and how can these models can promote IPMC applications. The applications of IPMC are also introduced.
Jingang Jiang   +5 more
wiley   +1 more source

Thermally activated delayed fluorescence carbazole‐triazine dendrimer with bulky substituents

open access: yesAggregate, Volume 5, Issue 1, February 2024.
New second‐generation carbazole‐triazine dendrimers were synthesized, and the photoluminescence quantum yield (PLQY) of 81% in the neat film was achieved by substituting the bulky phenylfluorene group at the periphery. Fine‐tuning the locally excited state triplet energy was the key to achieving high PLQY owing to the high reverse intersystem crossing ...
Hiroki Ikebe   +9 more
wiley   +1 more source

Steady Flow Over a Finite Patch of Submerged Flexible Vegetation

open access: yesWater Resources Research, Volume 60, Issue 1, January 2024.
Abstract An immersed boundary‐finite element with soft‐body dynamics has been implemented to study steady flow over a finite patch of submerged flexible aquatic vegetation. The flow structure interaction model can resolve the flow interactions with flexible vegetation, and hence the reconfiguration of vegetation blades to ambient flow.
Hyun Dong Kim, Xiao Yu, David Kaplan
wiley   +1 more source

Dynamic Modeling and Active Vibration Control of Piezoelectric Laminated Structure Based on Macrofiber Composite

open access: yesStructural Control and Health Monitoring, Volume 2024, Issue 1, 2024.
In this paper, a ground‐based experimental system for solar array active vibration suppression has been established. Firstly, in order to establish an accurate model of the solar array, the solar array is regarded as a flexible cantilevered thin plate, and the corresponding dynamical equations are derived using the absolute nodal coordinate method.
Haitao Luo   +5 more
wiley   +1 more source

A New Flexible Multibody Dynamics Analysis Methodology of Deployable Structures with Scissor-Like Elements

open access: yesChinese Journal of Mechanical Engineering, 2019
There are vast constraint equations in conventional dynamics analysis of deployable structures, which lead to differential-algebraic equations (DAEs) solved hard.
Qi’an Peng   +3 more
doaj   +1 more source

Shape Adjustment of a Large Planar Phased Array Antenna With Nonlinear Cable Actuators

open access: yesInternational Journal of Aerospace Engineering, Volume 2024, Issue 1, 2024.
Shape adjustment of large planar phased array antennas is significant because the shape distortion of phased arrays can greatly reduce the antenna’s gain in the observing direction. This study selects the inherent diagonal cables driven by motors as actuators, initially used to improve the stiffness of the antenna structure. The shape adjustment can be
Jiyang Zhou   +5 more
wiley   +1 more source

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