International Journal of Vehicle Design最新文献

英文中文

Collaborative optimisation of lane change decision and trajectory based on double-layer deep reinforcement learning 基于双层深度强化学习的变道决策与轨迹协同优化

4区工程技术 Q4 ENGINEERING, MECHANICAL

International Journal of Vehicle Design

Pub Date : 2023-01-01 DOI: 10.1504/ijvd.2023.10060138

Jinming Wan, Xingmao Wang, Siyu Zhang, Yang Shen, Fengyan Yi, Jiankun Peng, Cheng Kang

引用次数: 0

Multiobjective optimisation of an energy-efficient magnet track-eddy current composite brake for high-speed train 高速列车磁路-涡流复合节能制动器的多目标优化

4区工程技术 Q4 ENGINEERING, MECHANICAL

International Journal of Vehicle Design

Pub Date : 2023-01-01 DOI: 10.1504/ijvd.2023.10060117

Zequn Li, Desheng Li, Bin Wang, Tong Zhao, Benzhen Guo

引用次数: 0

Multi-objective optimisation design for brushless electrically excitated synchronous machines in electric vehicles 电动汽车无刷电励磁同步电机多目标优化设计

4区工程技术 Q4 ENGINEERING, MECHANICAL

International Journal of Vehicle Design

Pub Date : 2023-01-01 DOI: 10.1504/ijvd.2023.134727

Naixi Xu, Xiaodong Sun, Ming Yao

引用次数: 0

Universal Lifespan Trajectories of Source-Space Information Flow Extracted from Resting-State MEG Data. 从静息态脑电图数据中提取源空间信息流的普遍生命轨迹

IF 3.3 4区工程技术 Q4 ENGINEERING, MECHANICAL

International Journal of Vehicle Design

Pub Date : 2022-10-18 DOI: 10.3390/brainsci12101404

Stavros I Dimitriadis

Source activity was extracted from resting-state magnetoencephalography data of 103 subjects aged 18-60 years. The directionality of information flow was computed from the regional time courses using delay symbolic transfer entropy and phase entropy. The analysis yielded a dynamic source connectivity profile, disentangling the direction, strength, and time delay of the underlying causal interactions, producing independent time delays for cross-frequency amplitude-to-amplitude and phase-to-phase coupling. The computation of the dominant intrinsic coupling mode (DoCM) allowed me to estimate the probability distribution of the DoCM independently of phase and amplitude. The results support earlier observations of a posterior-to-anterior information flow for phase dynamics in {α₁, α₂, β, γ} and an opposite flow (anterior to posterior) in θ. Amplitude dynamics reveal posterior-to-anterior information flow in {α₁, α₂, γ}, a sensory-motor β-oriented pattern, and an anterior-to-posterior pattern in {δ, θ}. The DoCM between intra- and cross-frequency couplings (CFC) are reported here for the first time and independently for amplitude and phase; in both domains {δ, θ, α₁}, frequencies are the main contributors to DoCM. Finally, a novel brain age index (BAI) is introduced, defined as the ratio of the probability distribution of inter- over intra-frequency couplings. This ratio shows a universal age trajectory: a rapid rise from the end of adolescence, reaching a peak in adulthood, and declining slowly thereafter. The universal pattern is seen in the BAI of each frequency studied and for both amplitude and phase domains. No such universal age dependence was previously reported.

从 103 名 18-60 岁受试者的静息态脑磁图数据中提取了源活动。利用延迟符号转移熵和相位熵从区域时程中计算出信息流的方向性。该分析得出了动态源连接剖面图，分解了潜在因果相互作用的方向、强度和时间延迟，产生了跨频率振幅-振幅耦合和相位-相位耦合的独立时间延迟。通过计算主导内在耦合模式（DoCM），我可以估算出独立于相位和振幅的 DoCM 概率分布。结果支持了早先的观察结果，即{α1, α2, β, γ}中的相位动态信息流为后向前方，而θ中的信息流则相反（前向后方）。振幅动态显示了{α1、α2、γ}中从后到前的信息流、以感觉-运动β为导向的模式以及{δ、θ}中从前方到后方的模式。这里首次报告了频率内耦合（CFC）和跨频率耦合（CFC）之间的DoCM，并对振幅和相位进行了独立分析；在两个域{δ, θ, α1}中，频率是DoCM的主要贡献者。最后，引入了一种新的脑年龄指数（BAI），其定义为频率间耦合与频率内耦合的概率分布之比。该比率显示了一个普遍的年龄轨迹：从青春期末开始迅速上升，在成年期达到顶峰，之后缓慢下降。在研究的每个频率以及振幅和相位域的 BAI 中，都可以看到这种普遍模式。此前没有关于这种普遍年龄依赖性的报道。

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引用次数: 0

Correction: Interactome analysis of Caenorhabditis elegans synapses by TurboID-based proximity labeling. 更正：通过基于 TurboID 的邻近性标记分析草履虫突触的相互作用组。

4区工程技术 Q4 ENGINEERING, MECHANICAL

International Journal of Vehicle Design

Pub Date : 2022-06-01 DOI: 10.1016/j.jbc.2022.102081

Murat Artan, Stephen Barratt, Sean M Flynn, Farida Begum, Mark Skehel, Armel Nicolas, Mario de Bono

引用次数: 0

A clustering-based simplification of massive automobile-bodies point cloud for lightweight design 面向轻量化设计的海量车身点云聚类简化