-
261
Using HBmito Crimson to Observe Mitochondrial Cristae Through STED Microscopy
Published 2025-01-01“…Utilizing the superior resolution of STED microscopy, the structure and complex dynamic changes of cristae can be visualized.…”
Get full text
Article -
262
Exponential Fields Formulation for WMR Navigation
Published 2012-01-01“…The planning scheme is of critical importance for autonomous navigational tasks in complex dynamic environments. In fast dynamic environments, path planning needs algorithms able to sense simultaneously a diversity of obstacles, and use such sensory information to improve real-time navigation control, while moving towards a desired goal destination. …”
Get full text
Article -
263
Research on the spectrum sensing and sharing technology in the dynamic spatiotemporal data driven cognitive Internet of vehicles
Published 2020-09-01“…With the explosive development of the intellectualization and network connection of the global automobile industry,the communication technology as a crucial support of the Internet of vehicles (IoV) is facing the problem of spectrum shortage.In addition to providing security services,the diverse service demands of the IoV make the introduction of the cognitive radio technology an effective solution,which can share heterogeneous spectrum resources integrating the sub-6 GHz and millimeter-wave spectrum resources with primary users.But the performance is limited due to the influence of the complex dynamic environment of the IoV.To address this issue,a novelty method was proposed which aimed to make full use of the potential multi-source dynamic spatiotemporal data,mine and learn the changing rules of the vehicle trajectory and traffic flow,and the rules were used to guide the sensing and sharing of the spectrum resource.The system-level simulation platform was built for simulation analysis,the results showed that the performance of the proposed scheme was effectively improved.…”
Get full text
Article -
264
Qualitative Analysis of a Hyperchaotic Lorenz-Stenflo Mathematical Model via the Caputo Fractional Operator
Published 2022-01-01“…The Lorenz-Stenflo mathematical model describes a complex dynamical behavior related to atmospheric acoustic-gravity waves. …”
Get full text
Article -
265
Autonomous deployment and energy efficiency optimization strategy of UAV based on deep reinforcement learning
Published 2019-06-01“…Utilizing a UAV to build aerial mobile small cell can provide more flexible and efficient access services for ground terminal users.Constrained by the coverage and limited energy of the UAV,it is necessary to study how to build a fast,efficient and energy-saving air-ground collaborative network.To deal with complex dynamic scenarios,the UAV needs to deploy an optimal coverage position,and meanwhile reduce both path loss and energy consumption in the deployment process.Based on the deep reinforcement learning,a strategy of autonomous UAV deployment and efficiency optimization was proposed.The coverage state set of UAV was established,and the energy efficiency was used as a reward function.Depth neural network and Q-learning were used to guide UAV to make autonomous decision and deploy the optimal position.The simulation results show that the deployment time of the proposed method can be effectively reduced by 60%,while the energy consumption can be reduced by 10%~20%.…”
Get full text
Article -
266
MalSEIRS: Forecasting Malware Spread Based on Compartmental Models in Epidemiology
Published 2021-01-01“…As a result, the time-dependent rates of infection, recovery, and loss of immunity enable us to capture the complex dynamism of malware spreading behavior, which is influenced by a variety of external circumstances. …”
Get full text
Article -
267
Evaluation of the Pseudostatic Analyses of Earth Dams Using FE Simulation and Observed Earthquake-Induced Deformations: Case Studies of Upper San Fernando and Kitayama Dams
Published 2014-01-01“…Evaluation of the accuracy of the pseudostatic approach is governed by the accuracy with which the simple pseudostatic inertial forces represent the complex dynamic inertial forces that actually exist in an earthquake. …”
Get full text
Article -
268
Dynamics Characteristic Analysis of Sliding Bearing-rigid Rotor System with Flexible Support
Published 2021-06-01“…The results show that the complex dynamic behaviors such as chaos, multi period,almost periodic and single period appear with the increase of rotating speed in the middle and low speed stage, in the middle speed and high speed stage,the system is mainly the mutual transfer of multi period and chaotic motion,and the emergence of paroxysmal chaotic motion. …”
Get full text
Article -
269
Theoretical and Numerical Analysis of Coupled Axial-Torsional Nonlinear Vibration of Drill Strings
Published 2021-01-01“…The variation of parameters may lead to the complex dynamic behavior of the system, such as period-doubling motion, quasiperiodic motion, and chaos. …”
Get full text
Article -
270
Democracy, Authoritarianism, and Policy Punctuations
Published 2019-06-01“…The key to policy success for all these and other issues is adaptive policymaking in complex, dynamic environments. Relying on theory and empirical tests from policy process studies, we focus on extreme policy punctuations as indicators of maladaptive policymaking. …”
Get full text
Article -
271
Criterion for Unbounded Synchronous Region in Complex Networks
Published 2013-01-01“…In this paper, we investigate a sufficient condition for a general complex dynamical network in the absence of control. A main result is that, when the coupling strength is sufficiently strong, the dynamical network achieves synchronization provided that the symmetric part of the inner-coupling matrix is positive definite. …”
Get full text
Article -
272
Mathematical assessment of the role of temperature on desert locust population dynamics.
Published 2025-01-01“…Theoretical analysis reveals the model's capacity for complex dynamical behaviors, such as multiple stable states and backward bifurcations, suggesting the potential for sudden and unpredictable population shifts. …”
Get full text
Article -
273
Local System Matrix Compression for Efficient Reconstruction in Magnetic Particle Imaging
Published 2015-01-01“…For reconstructing a spatial map of the particle distribution, the system matrix describing the magnetic particle imaging equation has to be known. Due to the complex dynamic behavior of the magnetic particles, the system matrix is commonly measured in a calibration procedure. …”
Get full text
Article -
274
The online destination image as portrayed by the user-generated content on social media and its impact on tourists' engagement
Published 2024-10-01“…Tourism Destination Image (TDI) is complex, dynamic and multidimensional by nature and shaped by a multitude of events, interactions and sensory impressions, especially once the tourist is at the destination, generating tourists' engagement on social media networks. …”
Get full text
Article -
275
Meteorological Data-Based Optimal Control Strategy for Microalgae Cultivation in Open Pond Systems
Published 2019-01-01“…Outdoor biofuel production from microalgae is a complex dynamical process submitted to climatic variations. …”
Get full text
Article -
276
Quadcopter Trajectory Tracking Based on Model Predictive Path Integral Control and Neural Network
Published 2024-12-01“…This paper aims to address the trajectory tracking problem of quadrotors under complex dynamic environments and significant fluctuations in system states. …”
Get full text
Article -
277
Bifurcation Analysis of a Discrete Basener–Ross Population Model: Exploring Multiple Scenarios
Published 2025-01-01“…Furthermore, we demonstrated the existence of codimension-two bifurcations characterized by 1:2, 1:3, and 1:4 resonances, emphasizing the model’s complex dynamical structure. Numerical simulations are employed to validate and illustrate the theoretical predictions. …”
Get full text
Article -
278
Adaptive coordinated control for an under-actuated airplane–tractor system with parameter uncertainties
Published 2025-02-01“…The coupled system composed of an airplane and a tractor has complex dynamical and highly under-actuated characteristics. …”
Get full text
Article -
279
Fast analytical calculation-based modeling method and fault ride-through parameters selection to enhance short-term voltage stability of grids with large-scale photovoltaic power p...
Published 2025-03-01“…However, analyzing and optimizing short-term voltage characteristics requires extensive time-consuming simulations due to complex dynamic interactions between the grid voltage and FRT behaviors of PVPPs. …”
Get full text
Article -
280
Design of an Error-Based Adaptive Controller for a Flexible Robot Arm Using Dynamic Pole Motion Approach
Published 2011-01-01“…Design of an adaptive controller for complex dynamic systems is a big challenge faced by the researchers. …”
Get full text
Article