平面2自由度并联机构弹性振动的最优控制 by 雷改丽, 张锋涛

“…In order to design high-speed precision parallel mechanism,dynamic response of elastic vibration of planar 2-DOF parallel mechanism is analyzed,in connection with the main types of vibration,active control measures is proposed,and state space model of the active control of elastic vibration is established.In terms of system response speed and control energy,performance index of functional type is given which used measure the merits of quality control,optimal active control of elastic vibration is realized,the results show that the optimal active control can reduce significantly the level of the elastic vibration,positioning accuracy and precision movement of end point of mechanism is improved,the range and the amplitude of control energy are small,the method realized easily in engineering.…”
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Proparyation of Low frequency microwave in dusty Plasma by Baghdad Science Journal

“…The studying was done by taking two special cases depending on the direction of the propagation of the wave:First, when the propagation is parallel to the magnetic field K//B,this mode is called acoustic mode.Second,when K B this mode is called cyclotron mode.In addition, every one of the two modes divided into two modes depending on the range of the frequency.The Coulomb coupling parameter was studied, with temperature T,density of the dust particles Nd ,and the charge of the particle Qd.The low frequency electrostatic waves in dusty grains were studied. …”
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Research on microwave photonic channelization receiving technology based on dual coherent optical frequency comb by Bo CHEN, Yangyu FAN, Yongsheng GAO

“…In order to meet the future development needs of broadband communications, a microwave photonic channelization receiver based on dual coherent optical frequency comb (OFC) was proposed.The used optical frequency comb can be generated by only a dual parallel Mach-Zehnder modulator (DPMZM), which not only has high degree of flatness and out band rejection ratio, flexible and adjustable free spectrum range, but also effectively simplifies the complexity of the receiver.In the I/Q demodulation module, by the balanced detection method the second-order intermodulation distortion (IMD2) and direct current (DC) offset were effectively suppressed, and the dynamic range of the receiver was improved, at the same time, the electrical hybrid couple (EHC) and electric bandpass filter (EBPF) were used to solve the problem of image interference that is common in superheterodyne architectures.Finally it achieves channelized reception of 5 GHz bandwidth RF signals.…”
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Chaotic behavior, sensitivity analysis and Jacobian elliptic function solution of M-fractional paraxial wave with Kerr law nonlinearity. by Md Mamunur Roshid, Mohammad Safi Ullah, M M Rahman, Harun-Or- Roshid

“…These solutions have applications in wave dynamics in different optical systems and optical fibre. …”
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Simulative Investigation of the Influence of Different Abrasive Coating Structures in Double Face Grinding by Arunan Muthulingam, Eckart Uhlmann

“…By improving the supply of cooling lubricant, the application range of the double face grinding process can be expanded and enables the environmentally friendly machining of extremely hard and large components with plane-parallel functional surfaces.…”
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Urban Air Mobility Vertiport’s Capacity Simulation and Analysis by Antoni Kopyt, Sebastian Dylicki

“…It was focused on two use cases—high-frequency food delivery utilizing small UASs and extended-range package logistics with larger UASs—and the model incorporates adaptive vertiport zoning strategies, segregating operations into dedicated sectors for battery charging, swapping, and cargo handling to enable parallel processing and mitigate congestion. …”
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MEFSR-GAN: A Multi-Exposure Feedback and Super-Resolution Multitask Network via Generative Adversarial Networks by Sibo Yu, Kun Wu, Guang Zhang, Wanhong Yan, Xiaodong Wang, Chen Tao

“…In applications such as satellite remote sensing and aerial photography, imaging equipment must capture brightness information of different ground scenes within a restricted dynamic range. Due to camera sensor limitations, captured images can represent only a portion of such information, which results in lower resolution and lower dynamic range compared with real scenes. …”
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Epitaxial Growth of Ru and Pt on Pt(111) and Ru(0001), Respectively: A Combined AES and RHEED Study by M. S. Zei

“…For the Pt deposit on Ru(0001), at submonolayer range, it preferably grows compressed commensurate bilayer thick islands on Ru(0001). …”
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Study on the influence of horizontal stress difference coefficient on hydraulic fracturing fracture by Zengbao ZHANG, Xianbo MENG, Gun HUANG, Xiaoming ZHU, Yong WANG, YU LU, Yiping YUAN, Jiansheng FENG

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Temporal expression-based analysis of metabolism. by Sara B Collins, Ed Reznik, Daniel Segrè

“…By comparing the qualitative characteristics of these zones to additional experimental data, we are able to constrain the range of θ to a small, well-defined interval. In parallel, the sensitivity analysis reveals the inherently difficult nature of dynamic metabolic flux modeling: small errors early in the simulation propagate to relatively large changes later in the simulation. …”
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Displacement Measurement Based on the Missing-Order Talbot Effect by Liuxing Song, Kailun Zhao, Xiaoyong Wang, Jinping He, Guoliang Tian, Shihua Yang, Yaning Li

“…The measurement dynamic range can be adjusted by altering the grating period and the wavelength of the incident light. …”
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Interacting active surfaces: A model for three-dimensional cell aggregates. by Alejandro Torres-Sánchez, Max Kerr Winter, Guillaume Salbreux

“…We discretise the model equations using a finite element method, and provide a parallel implementation in C++. We discuss examples of application of this framework to small and medium-sized aggregates: we consider the shape and dynamics of a cell doublet, a planar cell sheet, and a growing cell aggregate. …”
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Tracking gas migration using reservoir PVT data as reality check for migration models by Khaled R. Arouri, Rainer Schmidt, Youness Elouair, Kadhem Nasser, Habib Tafsiri, Saleh A. Alqahtani

“…Results were used to test current basin models, differentiate fault migration from carrier migration, and evaluate the impact of migration style and dynamics on fluid properties and distributions. The first basin model invokes a very long-range migration in excess of 300 km, accumulating first in the northernmost field before spilling over to the south. …”
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Visual Neuroplasticity: Modulating Cortical Excitability with Flickering Light Stimulation by Francisco J. Ávila

“…By triggering the critical flicker fusion (CFF) frequency, we attempt to modulate the M-pathway activity and attenuate P-pathway responses, in parallel with induced optical scattering. EEG recordings were used to monitor cortical excitability and oscillatory dynamics during visual stimulation. …”
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The responses of stress tolerance, physiological performance and energy metabolism to acclimation temperature between tropical and temperate fish species by Yong-Fei Zhang, Ping Xiang, Shi-Jian Fu

“…One of the underlying mechanisms is the parallel increase in oxygen supply capacity with the increased energy and oxygen demanding by higher acclimation temperatures. …”
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P2 Hybrid AMT Shift Clutch Engagement Control Strategy based on Model Prediction by Changqing Du, Huan Zhang, Xiliang Cao, Huawu Wang

“…For the engagement process of the P2 single-shaft parallel hybrid vehicle clutch， the two control targets of the clutch is engaged as soon as possible during the clutch engagement phase and the impact is as small as possible， the dynamics process of the clutch engagement phase in different driving modes is analyzed， a clutch engagement control strategy based on model predictive control is designed， an Amesim-Simulink joint simulation model is built to simulate and analyze the control strategy. …”
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Van Allen Probes observations of oxygen cyclotron harmonic waves in the inner magnetosphere by M. E. Usanova, D. M. Malaspina, A. N. Jaynes, R. J. Bruder, I. R. Mann, J. R. Wygant, R. E. Ergun

“…They are electromagnetic, in the frequency range ~0.5 to several Hz, and amplitude ~0.1 to a few nT in magnetic and ~0.1 to a few mV/m in electric field, with both the wave velocity and the Poynting vector directed almost parallel to the background magnetic field. …”
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Wettability of Two-Dimensional Carbon Allotropes from Molecular Simulations by Margaret E. Thornton, Serban G. Zamfir, Dusan Bratko

“…Force-field Monte Carlo and Molecular Dynamics simulations are used to compare wetting behaviors of model carbon sheets mimicking neat graphene, its saturated derivative, graphane, and related planar allotropes penta-graphene, <i>γ</i>-graphyne, and <i>ψ</i>-graphene in contact with aqueous droplets or an aqueous film confined between parallel carbon sheets. …”
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Research of Control Strategy for High-voltage Suspended Type Reactive Power and Harmonic Integrative Compensator by 罗仁俊, 张定华, 王卫安, 黄超, 黄燕艳, 曹洋, 刘华东, 唐建宇

“…In order to solve the problem that reactive power and harmonic are compensated separately in high and medium voltage grid, a new high voltage suspended compensator constituted by static var generator based on H-bridge cascade and LC in parallel. The utilization and compensative range of active capability are improved by combining a low cost LC. …”
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Deep learning-based multimodal trajectory prediction methods for autonomous driving: state of the art and perspectives by Jun HUANG, Yonglin TIAN, Xingyuan DAI, Xiao WANG, Zhixing PING

“…Although deep learning methods have achieved better results than traditional trajectory prediction algorithms, there are still problems such as information loss, interaction and uncertainty difficulties in modelling, and lack of interpretability of predictions when implementing multimodal high-precision prediction for autonomous vehicles in heterogeneous, highly dynamic and complex changing environments.The newly developed Transformer's long-range modelling capability and parallel computing ability make it a great success not only in the field of natural language processing, but also in solving the above problems when extended to the task of multimodal trajectory prediction for autonomous driving.Based on this, the aim of this paper is to provide a comprehensive summary and review of past deep neural network-based approaches, in particular the Transformer-based approach.The advantages of Transformer over traditional sequential network, graphical neural network and generative model were also analyzed and classified in relation to existing challenges, simultaneously.Transformer models can be better applied to multimodal trajectory prediction tasks, and that such models have better generalisation and interpretability.Finally, the future directions of multimodal trajectory prediction were presented.…”
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