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Journal articles on the topic 'State Trajectory Analysis'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Espinosa-García, Joaquín, and José L. Bravo. "State-to-State Dynamics Analysis of the F + CHD3Reaction: A Quasiclassical Trajectory Study." Journal of Physical Chemistry A 112, no. 27 (2008): 6059–65. http://dx.doi.org/10.1021/jp711218p.

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2

Cohen, Rajal G., and Dagmar Sternad. "State space analysis of timing: exploiting task redundancy to reduce sensitivity to timing." Journal of Neurophysiology 107, no. 2 (2012): 618–27. http://dx.doi.org/10.1152/jn.00568.2011.

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Timing is central to many coordinated actions, and the temporal accuracy of central nervous system commands presents an important limit to skilled performance. Using target-oriented throwing in a virtual environment as an example task, this study presents a novel analysis that quantifies contributions of timing accuracy and shaping of hand trajectories to performance. Task analysis reveals that the result of a throw is fully determined by the projectile position and velocity at release; zero error can be achieved by a manifold of position and velocity combinations (solution manifold). Four pre

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3

Saboori, Anooshiravan, and Christoforos N. Hadjicostis. "Coverage analysis of mobile agent trajectory via state-based opacity formulations." Control Engineering Practice 19, no. 9 (2011): 967–77. http://dx.doi.org/10.1016/j.conengprac.2010.12.003.

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4

De la Sen, M. "On Some Sufficiency-Type Global Stability Results for Time-Varying Dynamic Systems with State-Dependent Parameterizations." International Journal of Differential Equations 2019 (October 1, 2019): 1–15. http://dx.doi.org/10.1155/2019/5097974.

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This paper formulates sufficiency-type global stability and asymptotic stability results for, in general, nonlinear time-varying dynamic systems with state-trajectory solution-dependent parameterizations. The stability proofs are based on obtaining sufficiency-type conditions which guarantee that either the norms of the solution trajectory or alternative interval-type integrals of the matrix of dynamics of the higher-order than linear terms do not grow faster than their available supremum on the preceding time intervals. Some extensions are also given based on the use of a truncated Taylor ser

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5

Goan, H.-S. "An analysis of reading out the state of a charge quantum bit." Quantum Information and Computation 3, no. 2 (2003): 121–38. http://dx.doi.org/10.26421/qic3.2-4.

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We provide a unified picture for the master equation approach and the quantum trajectory approach to a measurement problem of a two-state quantum system (a qubit), an electron coherently tunneling between two coupled quantum dots (CQD's) measured by a low transparency point contact (PC) detector. We show that the master equation of ``partially'' reduced density matrix can be derived from the quantum trajectory equation (stochastic master equation) by simply taking a ``partial'' average over the all possible outcomes of the measurement. If a full ensemble average is taken, the traditional (unco

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6

Deng, Hongyong, Wei Zhang, and Changchun Shen. "Stability Analysis of Optimal Trajectory for Nonlinear Optimal Control Problems." Journal of Mathematics 2020 (August 27, 2020): 1–5. http://dx.doi.org/10.1155/2020/1392705.

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Due to the need for numerical calculation and mathematical modelling, this paper focuses on the stability of optimal trajectories for optimal control problems. The basic ideas and techniques are based on the compactness of the optimal trajectory set and set-valued mapping theorem. Through lack of optimal control stability, the result of generic stability for optimal trajectories is obtained under the perturbations of the right-hand side functions of the state equations; in the sense of Baire category, the right-hand side functions of the state equations of optimal control can be approximated b

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Cheng, Yunpeng, Xiaodong Yan, and Feng Cheng. "Trajectory Estimation of Hypersonic Glide Vehicle Based on Analysis of Aerodynamic Performance." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 37, no. 6 (2019): 1102–10. http://dx.doi.org/10.1051/jnwpu/20193761102.

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Due to high speed and high maneuverability of hypersonic glide vehicles (HGVs), the state estimation of such targets has always been a research hotspot. In order to improve accuracy of the trajectory estimation, a nonlinear aerodynamic parameter model for target estimation based on aerodynamic performance analysis is proposed. Firstly, the dynamic characteristics of the hypersonic glide vehicle during the hypersonic gliding stage was analyzed. Then, aiming at HTV-2-liked vehicle, the engineering calculation method was used to form the reference aerodynamic model for the target estimation. Seco

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8

Liu, Jun, Leicheng Chen, Shiquan Fan, and Li Geng. "A transient enhanced DVS DC–DC converter based on state trajectory analysis." Analog Integrated Circuits and Signal Processing 80, no. 1 (2014): 85–97. http://dx.doi.org/10.1007/s10470-014-0281-5.

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9

Wu, Hao, Antonia S. J. S. Mey, Edina Rosta, and Frank Noé. "Statistically optimal analysis of state-discretized trajectory data from multiple thermodynamic states." Journal of Chemical Physics 141, no. 21 (2014): 214106. http://dx.doi.org/10.1063/1.4902240.

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10

Zheng, Xu, Wuxing Jing, and Changsheng Gao. "Trajectory characteristic analysis influenced by initial state errors for long-range vehicles." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 233, no. 7 (2018): 2413–32. http://dx.doi.org/10.1177/0954410018778800.

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The initial state errors, caused by the Earth’s un-homogeneity through the leveling and alignment of an inertial platform before launching a long-range vehicle, will bring about remarkable flight state deviations and fall point deviations by flight dynamics. In order to analyze the propagation characteristics of the initial state errors and rapidly estimate their influence magnitude, an analytical propagation model of trajectory design is deduced by employing state space perturbation theory in nominal launch coordinate system. Then, propagation matrices of engine-cutoff state deviations and fa

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11

Liu, Chao, Shuai Guo, Yuan Feng, Feng Hong, Haiguang Huang, and Zhongwen Guo. "L-VTP: Long-Term Vessel Trajectory Prediction Based on Multi-Source Data Analysis." Sensors 19, no. 20 (2019): 4365. http://dx.doi.org/10.3390/s19204365.

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With the rapid development of marine IoT (Internet of Things), ocean MDTN (Mobile Delay Tolerant Network) has become a research hot spot. Long-term trajectory prediction is a key issue in MDTN. There are no long-term fine-grained trajectory prediction methods proposed for ocean vessels because a vessel’s mobility pattern lacks map topology support and can be easily influenced by the fish moratorium, sunshine duration, etc. A traditional on-land trajectory prediction algorithm cannot be directly utilized in this field because trajectory characteristics of ocean vessels are far different from th

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12

Yau, H.-T., C.-K. Chen, and C.-L. Chen. "Chaos and bifurcation analysis of a flexible rotor supported by short journal bearings with non-linear suspension." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 214, no. 7 (2000): 931–47. http://dx.doi.org/10.1243/0954406001523164.

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The bifurcation and chaos of the unbalanced response of a bearing-rotor system with non-linear suspension are investigated on the basis of the assumption of an incompressible lubricant together with short bearing approximation. Numerical results show that, owing to the non-linear factors, the trajectory of the journal centre demonstrates steady state symmetric motion even when the trajectory of the bearing centre is in a state of disorder. Poincaré maps, bifurcation diagrams and power spectra are used to analyse the behaviour of the bearing centre in the horizontal and vertical directions unde

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13

Škugor, Soldo, and Deur. "Analysis of Optimal Battery State-of-Charge Trajectory for Blended Regime of Plug-in Hybrid Electric Vehicle." World Electric Vehicle Journal 10, no. 4 (2019): 75. http://dx.doi.org/10.3390/wevj10040075.

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Plug-in hybrid electric vehicles (PHEV) typically combine several power sources, which call for the use of optimal control strategy design techniques. The PHEV powertrain efficiency can be improved if the battery is gradually discharged by blending fully electric and hybrid driving modes during the whole trip. Here, the battery state-of-charge (SoC) trajectory profile is of particular importance to achieving near-optimal powertrain operation. In order to reveal optimal patterns of SoC trajectory profiles, numerical optimizations of PHEV control variables based on the dynamic programing (DP) al

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14

Mora, David G. "A Trajectory Analysis Planner for Puget Sound, Washington1." International Oil Spill Conference Proceedings 2003, no. 1 (2003): 983–89. http://dx.doi.org/10.7901/2169-3358-2003-1-983.

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ABSTRACT Washington State's Puget Sound is perhaps the Pacific Northwest's most precious resource, a resource likely to be seriously damaged should a major spill event occur. For response planners to protect Puget Sound from oil spills it is important to know: 1) Where spills will likely go; 2) How much time will there be to respond; 3) How large will impacts likely be; 4) How much sensitive shoreline will likely be impacted; 5) How many response resources will likely be needed to protect sensitive areas; and 6) Where will spills likely come from that threaten particular sensitive areas? As di

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15

Surkov, P. G. "Tracking the Trajectory of a Fractional Dynamical System When Measuring Part of State Vector Coordinates." Differential Equations 56, no. 11 (2020): 1463–71. http://dx.doi.org/10.1134/s00122661200110075.

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16

Akimov, Alexey V., Dhara Trivedi, Linjun Wang, and Oleg V. Prezhdo. "Analysis of the Trajectory Surface Hopping Method from the Markov State Model Perspective." Journal of the Physical Society of Japan 84, no. 9 (2015): 094002. http://dx.doi.org/10.7566/jpsj.84.094002.

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17

Wan, Qian, Guoqing Peng, Zhibin Li, and Felipe Hiroshi Tahira Inomata. "Spatiotemporal trajectory characteristic analysis for traffic state transition prediction near expressway merge bottleneck." Transportation Research Part C: Emerging Technologies 117 (August 2020): 102682. http://dx.doi.org/10.1016/j.trc.2020.102682.

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18

Espinosa-García, Joaquín. "Quasi-classical trajectory study of the hydrogen abstraction F+CHD3 reaction: A state-to-state dynamics analysis." Chemical Physics Letters 454, no. 4-6 (2008): 158–62. http://dx.doi.org/10.1016/j.cplett.2008.02.009.

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19

Wu, Yuhu, and Xiaoping Xue. "ASYMPTOTICS FOR A DISSIPATIVE DYNAMICAL SYSTEM WITH LINEAR AND GRADIENT-DRIVEN DAMPING." Mathematical Modelling and Analysis 18, no. 5 (2013): 654–74. http://dx.doi.org/10.3846/13926292.2013.868842.

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We study, in the setting of a real Hilbert space H, the asymptotic behavior of trajectories of the second-order dissipative dynamical system with linear and gradient-driven nonlinear damping where λ > 0 and f, Φ: H → R are two convex differentiable functions. It is proved that if Φ is coercive and bounded from below, then the trajectory converges weakly towards a minimizer of Φ. In particular, we state that under suitable conditions, the trajectory strongly converges to the minimizer of Φ exponentially or polynomially.

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20

Tao, Ruihua, Heng Wei, Yinhai Wang, and Virginia P. Sisiopiku. "Modeling Speed Disturbance Absorption following Current State–Control Action–Expected State Chains." Transportation Research Record: Journal of the Transportation Research Board 1934, no. 1 (2005): 83–93. http://dx.doi.org/10.1177/0361198105193400109.

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This paper explores driver behavior in a paired car-following mode in response to a speed disturbance from a front vehicle. A current state– control action–expected state (SAS) chain is developed to provide a framework for modeling of the hierarchy of expected actions incurred during the need for speed disturbance absorption. Three car-following scenarios and one lane-changing scenario are identified with defined perceptual informative variables to describe the process of speed disturbance absorption. Those variables include dynamic spacing versus the follower's speed, disturbance-effecting an

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21

Galt, J. A., G. Y. Watabayashi, D. L. Payton, and J. C. Petersen. "Trajectory Analysis for the Exxon Valdez: Hindcast Study." International Oil Spill Conference Proceedings 1991, no. 1 (1991): 629–34. http://dx.doi.org/10.7901/2169-3358-1991-1-629.

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ABSTRACT The movement and spreading of the oil from the tanker Exxon Valdez accident was a vital issue in the massive response activities launched by industry, private groups, state governments and the federal government. To address this issue, a number of observational and forecast programs were carried out. These accumulated an unprecedented amount of observational data ranging from visual and remote-sensing distribution information to fairly complex adaptations of standard trajectory analysis routines. This paper reports on a hindcast study that used observational data and computational pro

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22

Zhao, Jian, Haiyang Li, Xiangyue He, Yuechen Huang, and Jianghui Liu. "Uncertainty Analysis for Return Trajectory of Vertical Takeoff and Vertical Landing Reusable Launch Vehicle." Mathematical Problems in Engineering 2020 (July 11, 2020): 1–18. http://dx.doi.org/10.1155/2020/4313758.

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The uncertainties during the return trajectory of vertical takeoff and vertical landing reusable launch vehicle weaken the ability of precision landing and make the return process more challenging. This paper is devoted to quantifying the probability uncertainty of return trajectory with uncertain parameters. The uncertainty model of return multi-flight-phase under the uncertainties of initial flight path angle, axial aerodynamic coefficient, and atmospheric density is established using the generalized polynomial chaos expansion method. By parameterizing random uncertainties and introducing ra

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23

Shi, Xiling, Yunqiang Sun, and Xingling Shao. "Robust output feedback trajectory tracking for quadrotors." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 233, no. 5 (2018): 1596–610. http://dx.doi.org/10.1177/0954410018756671.

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This paper focuses on robust output tracking control for quadrotors exposed to parametric uncertainties and external disturbances. Based on the back-stepping control principle, the quadrotor dynamics is decomposed into translational and rotational subsystems. To handle the limitation of traditional extended state observer that can only be effective for integral-chain systems, a high-order extended state observer with special structure is developed to estimate the unmeasurable states and the lumped disturbances in rotational subsystem simultaneously. To avoid the tedious analysis and repeated d

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24

Gregory, John, Alberto Olivares, and Ernesto Staffetti. "Energy-Optimal Trajectory Planning for Planar UnderactuatedRRRobot Manipulators in the Absence of Gravity." Abstract and Applied Analysis 2013 (2013): 1–16. http://dx.doi.org/10.1155/2013/476094.

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In this paper, we study the trajectory planning problem for planar underactuated robot manipulators with two revolute joints in the absence of gravity. This problem is studied as an optimal control problem in which, given the dynamic model of a planar horizontal robot manipulator with two revolute joints one of which is not actuated, the initial state, and some specifications about the final state of the system, we find the available control input and the resulting trajectory that minimize the energy consumption during the motion. Our method consists in a numerical resolution of a reformulatio

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25

Dubonjac, Aleksandar, and Mihailo Lazarević. "State space constrained iterative learning control for 3DOF robotic manipulator." FME Transactions 49, no. 2 (2021): 429–36. http://dx.doi.org/10.5937/fme2102429d.

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In this paper, the trajectory tracking problem of a nonlinear robotic system with 3DOFs under the control signal obtained through nonlinearly constrained state spaceIterative Learning Control (ILC) methods is considered. The focus of this paper is the analysis of different control system parameters on the convergence rate of two constrained state space ILCalgorithms: Bounded Error Algorithm (BEAILC) and Constrained Output algorithm (COILC), as well as the comparison between these two algorithms through simulations. The obtained results have shown that COILC algorithm converges faster than BEAI

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26

Okada, T., H. Onozuka, and N. Takahashi. "Transient trajectory analysis of a 4-wheeled non-steering vehicle at its initial state." Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2004 (2004): 67. http://dx.doi.org/10.1299/jsmermd.2004.67_2.

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27

Innerbichler, Max, Georg Menzl, and Christoph Dellago. "State-dependent diffusion coefficients and free energies for nucleation processes from Bayesian trajectory analysis." Molecular Physics 116, no. 21-22 (2018): 2987–97. http://dx.doi.org/10.1080/00268976.2018.1471534.

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28

Piao, Chang Hao, Le Zhang, Sheng Lu, and Yu Sheng Li. "Research on Path Planning of Automatic Parking System." Advanced Materials Research 590 (November 2012): 416–20. http://dx.doi.org/10.4028/www.scientific.net/amr.590.416.

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A non-parallel initial state path planning algorithm for the automatic parking system is presented in this paper. Automatic parking system is a hot research point in intelligent vehicle application fields, and the trajectory generation is one of its key technologies. In the actual process of parking, the initial state of vehicle is always non-parallel to the parking place, so this situation should be researched to serve automatic parking system better. According to the analysis of vehicle kinematics model and the parking process, the trajectory can be considered as the combination of some sect

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Assellaou, Mohamed, Olivier Bokanowski, Anya Desilles, and Hasnaa Zidani. "Value function and optimal trajectories for a maximum running cost control problem with state constraints. Application to an abort landing problem." ESAIM: Mathematical Modelling and Numerical Analysis 52, no. 1 (2018): 305–35. http://dx.doi.org/10.1051/m2an/2017064.

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The aim of this article is to study the Hamilton Jacobi Bellman (HJB) approach for state-constrained control problems with maximum cost. In particular, we are interested in the characterization of the value functions of such problems and the analysis of the associated optimal trajectories, without assuming any controllability assumption. The rigorous theoretical results lead to several trajectory reconstruction procedures for which convergence results are also investigated. An application to a five-state aircraft abort landing problem is then considered, for which several numerical simulations

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30

Fu, Qiming, Quan Liu, Shan Zhong, Heng Luo, Hongjie Wu, and Jianping Chen. "Single Trajectory Learning: Exploration Versus Exploitation." International Journal of Pattern Recognition and Artificial Intelligence 32, no. 06 (2018): 1859009. http://dx.doi.org/10.1142/s0218001418590097.

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In reinforcement learning (RL), the exploration/exploitation (E/E) dilemma is a very crucial issue, which can be described as searching between the exploration of the environment to find more profitable actions, and the exploitation of the best empirical actions for the current state. We focus on the single trajectory RL problem where an agent is interacting with a partially unknown MDP over single trajectories, and try to deal with the E/E in this setting. Given the reward function, we try to find a good E/E strategy to address the MDPs under some MDP distribution. This is achieved by selecti

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31

Li, Hesong, Yi Wang, Shangcheng Xu, Yunfan Zhou, and Dan Su. "Trajectory Optimization of Hypersonic Periodic Cruise Using an Improved PSO Algorithm." International Journal of Aerospace Engineering 2021 (September 27, 2021): 1–11. http://dx.doi.org/10.1155/2021/2526916.

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Periodic cruise has the potential to improve the fuel-saving efficiency of hypersonic cruise vehicles but is difficult to optimize. In this paper, hypersonic periodic cruise trajectory is analyzed theoretically and optimized by an improved Particle Swarm Optimization algorithm. Firstly, through theoretical analysis, it is determined that the optimal throttle curve can be parameterized as a switching function. Considering the optimization direction of algorithm, a new penalty function for the constraints of periodic cruise is proposed. Then, PSO algorithm is improved and applied in periodic cru

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32

Seema Sharma and Deepa Mann. "State and Social Responsibility of the Corporate: Analysis of the Role of State in India." Think India 18, no. 3 (2015): 01–09. http://dx.doi.org/10.26643/think-india.v18i3.7791.

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The present article aims to underscore the role of state in developing the context within which corporate social responsibility (CSR) has emerged in India. The paper traces the trajectory of the Indian economy through the five year plans which were considered to be its backbone and which have now been jettisoned. In addition, it takes a critical look at the public rhetoric of the political class to justify CSR in India. The analysis shows that Indian state since Independence has been dominated by the bourgeoisie class and hence even while focusing on planned development, it continued to create

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Cao, Yi, Zhong Yi Zuo, and Bo Hang Liu. "Research on Mechanical Mechanics with Trajectory Reconstruction Model of Motorcycle’s Three-Dimensional Rolling Movement." Advanced Materials Research 952 (May 2014): 201–5. http://dx.doi.org/10.4028/www.scientific.net/amr.952.201.

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In order to simulate and analyze the rolling movement state of motorcycle in collision accidents, the trajectory reconstruction model was studied. The motorcycle’s centroid trajectory model during the process of rolling and the feature point trajectory model during the process of sliding are both constructed. Using the accidents reconstruction and analysis software named PC-Crash and the models constructed in this paper respectively, a real accident case was reconstructed and analyzed. The comparative study between the reconstruction analysis results and the marks remained in the accident scen

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34

Deng, Ketao. "Anomaly Detection of Highway Vehicle Trajectory under the Internet of Things Converged with 5G Technology." Complexity 2021 (April 27, 2021): 1–12. http://dx.doi.org/10.1155/2021/9961428.

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The gradual increase in the density of highway vehicles and traffic flow makes the abnormal driving state of vehicles an indispensable tool for assisting traffic dispatch. Intelligent transportation systems can detect and track vehicles in real time, acquire characteristics such as vehicle traffic, vehicle speed, vehicle flow density, and vehicle trajectory, and further perform advanced tasks such as vehicle trajectory. The detection of abnormal vehicle trajectory is an important content of vehicle trajectory understanding. And the development of the Internet of Things (IoT) and 5G technology

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35

Gomes dos Santos, Willer, Hélio Koiti Kuga, and Evandro Marconi Rocco. "Application of the Kalman Filter to Estimate the State of an Aerobraking Maneuver." Mathematical Problems in Engineering 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/234270.

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This paper presents a study about the application of a Kalman filter to estimate the position and velocity of a spacecraft in an aerobraking maneuver around the Earth. The cis-lunar aerobraking of the Hiten spacecraft as well as an aerobraking in a LEO orbit are simulated in this paper. The simulator developed considers a reference trajectory and a trajectory perturbed by external disturbances combined with nonidealities of sensors and actuators. It is able to operate in closed loop controlling the trajectory at each instant of time using a PID controller and propulsive jets. A Kalman filter u

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Tian, Jia Lin, Yun He, Lei Chen, and Ban Wang. "Simulation of Motion Trajectory of Parachute Inflation Process." Advanced Materials Research 945-949 (June 2014): 658–61. http://dx.doi.org/10.4028/www.scientific.net/amr.945-949.658.

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Motion trajectory is the fundamental basis for the design and research of parachute. The fall state, the minimum safe altitude and airborne site are closely associated with the motion trajectory. Particularly due to rapid changes in these parameters such as canopy shape, velocity, dynamic load of the parachute, it is very difficult to determine the motion trajectory of parachute inflation process. Currently, the trajectory is mainly obtained by airdrop tests or wind tunnel tests. The tests are very expensive. Based on the force analysis and mathematical model of a certain type of parachute, we

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Jo, J. H., S. J. Ahn, and O. J. Kwon. "PREDICTION OF SEPARATION TRAJECTORY FOR TSTO LAUNCH VEHICLE USING DATABASE BASED ON STEADY STATE ANALYSIS." Journal of computational fluids engineering 19, no. 2 (2014): 86–92. http://dx.doi.org/10.6112/kscfe.2014.19.2.086.

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Larsen, Niels, Bjørn M. Knudsen, James M. Rosen, Norman T. Kjome, and Esko Kyrö. "Balloonborne backscatter observations of type 1 PSC formation: Inference about physical state from trajectory analysis." Geophysical Research Letters 23, no. 10 (1996): 1091–94. http://dx.doi.org/10.1029/96gl01041.

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Rijnen, Mark, J. J. Benjamin Biemond, Nathan van de Wouw, Alessandro Saccon, and Henk Nijmeijer. "Hybrid Systems With State-Triggered Jumps: Sensitivity-Based Stability Analysis With Application to Trajectory Tracking." IEEE Transactions on Automatic Control 65, no. 11 (2020): 4568–83. http://dx.doi.org/10.1109/tac.2019.2961996.

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40

Yip, Terry Cheuk-Fung, Suchi Saria, Michelle Petri, and Laurence S. Magder. "Predictors of the start of declining eGFR in patients with systemic lupus erythematosus." Lupus 30, no. 1 (2020): 15–24. http://dx.doi.org/10.1177/0961203320966393.

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Objective To characterize the longitudinal trajectory of estimated glomerular filtration rate (eGFR) in patients with systemic lupus erythematosus (SLE) and identify predictors of the change in eGFR trajectory. Methods The longitudinal eGFR levels of patients in the Hopkins Lupus Cohort were modelled by piecewise linear regression to evaluate the slope of different line segments. The slopes were classified into declining (≤−4 mL/min/1.73 m2 per year), stable (−4 to 4 mL/min/1.73 m2 per year), and increasing (≥4 mL/min/1.73 m2 per year) states. The transition rate between states and the impact

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41

LUO, XIN-LONG. "A TRAJECTORY-FOLLOWING METHOD FOR SOLVING THE STEADY STATE OF CHEMICAL REACTION RATE EQUATIONS." Journal of Theoretical and Computational Chemistry 08, supp01 (2009): 1025–44. http://dx.doi.org/10.1142/s0219633609005283.

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This article gives a trajectory-following method for the steady state of chemical reaction rate equations. In order to avoid wasting unnecessary computing time during the steady-state phase and get roughly accurate solutions during the transient-state phase, this method is realized via adopting the semi-implicit Euler formula as the stepping direction and adaptively adjusting the time-step size by an analogous trust-region technique. Under some standard assumptions, its global convergence analysis and local superlinear convergence analysis are also given. Finally, some numerical experiments of

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42

Thomson, N. R., and J. F. Sykes. "A sensitivity method for ice floe trajectory calculations." Canadian Journal of Civil Engineering 19, no. 4 (1992): 573–85. http://dx.doi.org/10.1139/l92-068.

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The simulation of an ice floe trajectory normally involves the solving of a physically based governing equation in order to determine the temporal variation of ice floe velocities. As part of this calculation process, a sensitivity analysis is usually undertaken to determine the response of the solution to variations in the system or input parameters; thus providing a quantitative procedure to help interpret the results of the simulation. In this paper, a versatile sensitivity method is described, which can be employed in this sensitivity analysis. This sensitivity method is based on the adjoi

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Peng, Minglong, Yuankai Zhou, and Xue Zuo. "Application of recurrence dynamic analysis to running-in state recognition." Industrial Lubrication and Tribology 73, no. 5 (2021): 756–64. http://dx.doi.org/10.1108/ilt-12-2020-0481.

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Purpose The purpose of this paper is to study the dynamic features of friction coefficient during running-in state based on recurrence analysis, so as to recognize the running-in state of crankshaft journal bearings. Design/methodology/approach The friction coefficient was measured in the friction experiments and the dynamic features are analyzed by recurrence plots (RPs), unthreshold recurrence plots (URPs) and recurrence quantification analysis. Findings During the running-in process, RPs have gone through disrupted patterns, drift patterns and homogeneous patterns successively. URP shows th

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Gochberg, D. F., and Z. Ding. "The Approach to Steady State Using Homogeneous and Cartesian Coordinates." Computational and Mathematical Methods in Medicine 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/729236.

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Repeating an arbitrary sequence of RF pulses and magnetic field gradients will eventually lead to a steady-state condition in any magnetic resonance system. While numerical methods can quantify this trajectory, analytic analysis provides significantly more insight and a means for faster calculation. Recently, an analytic analysis using homogeneous coordinates was published. The current work further develops this line of thought and compares the relative merits of using a homogeneous or a Cartesian coordinate system.

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Ribeiro de Almeida, Damião, Cláudio de Souza Baptista, Fabio Gomes de Andrade, and Amilcar Soares. "A Survey on Big Data for Trajectory Analytics." ISPRS International Journal of Geo-Information 9, no. 2 (2020): 88. http://dx.doi.org/10.3390/ijgi9020088.

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Trajectory data allow the study of the behavior of moving objects, from humans to animals. Wireless communication, mobile devices, and technologies such as Global Positioning System (GPS) have contributed to the growth of the trajectory research field. With the considerable growth in the volume of trajectory data, storing such data into Spatial Database Management Systems (SDBMS) has become challenging. Hence, Spatial Big Data emerges as a data management technology for indexing, storing, and retrieving large volumes of spatio-temporal data. A Data Warehouse (DW) is one of the premier Big Data

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Fan, Cheng Fei, Yao Hua Wang, Rui Ma, Mian Jun Duan, and Xing Chang. "The Force State Analysis of the Service Door on an Airliner." Advanced Materials Research 798-799 (September 2013): 325–27. http://dx.doi.org/10.4028/www.scientific.net/amr.798-799.325.

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The crew emergency evacuation security system is a life-saving device, the ultimate function of which is to save the life of the aircraft crew in a new regional airliner at high altitude. The system is used to push the service door with translational motion for a suitable distance. Before the system was started, the force state of the service door was got with the fluid mechanics knowledge. When the system was started, after a period of pressure relief time, the aircraft cabin pressure was calculated with the Bernoulli's Equation. The movement trajectory and the force state of the service door

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Le Meur, Nolwenn, Cécile Vigneau, Mathilde Lefort, et al. "Categorical state sequence analysis and regression tree to identify determinants of care trajectory in chronic disease: Example of end-stage renal disease." Statistical Methods in Medical Research 28, no. 6 (2018): 1731–40. http://dx.doi.org/10.1177/0962280218774811.

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Background Patients with chronic diseases, like patients with end-stage renal disease (ESRD), have long history of care driven by multiple determinants (medical, social, economic, etc.). Although in most epidemiological studies, analyses of health care determinants are computed on single health care events using classical multivariate statistical regression methods. Only few studies have integrated the concept of treatment trajectories as a whole and studied their determinants. Methods All 18- to 80-year-old incident ESRD patients who started dialysis in Ile-de-France or Bretagne between 2006

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Rozin, Vadim Markovich. "Establishment and the concept of European State (culturological analysis)." Культура и искусство, no. 2 (February 2020): 19–33. http://dx.doi.org/10.7256/2454-0625.2020.2.31780.

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This article analyzes the concept of state of the military historian Martin van Creveld. This analysis allowed the author to view prerequisites and establishment of the state and denote the concept of state. In the latter he differentiates the concepts of state and social practices that ensure their implementation, organization of management and accepted in culture explanations on the need for such organization, which in the author&rsquo;s opinion comprises the meaning and content of power. Moreover, the article introduces the term of sociocultural pre-basis of the state that allows denoti

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Hudson, Dave W., Richard Delahay, Robbie A. McDonald, Trevelyan J. McKinley, and Dave J. Hodgson. "Analysis of Lifetime Mortality Trajectories in Wildlife Disease Research: BaSTA and Beyond." Diversity 11, no. 10 (2019): 182. http://dx.doi.org/10.3390/d11100182.

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Wildlife hosts are important reservoirs of a wide range of human and livestock infections worldwide, and in some instances, wildlife populations are threatened by disease. Yet wildlife diseases are difficult to monitor, and we often lack an understanding of basic epidemiological parameters that might inform disease management and the design of targeted interventions. The impacts of disease on host survival are generally associated with age, yet traditional epidemiological models tend to use simplistic categories of host age. Mortality trajectory analysis provides the opportunity to understand

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Rao, Srinivasa, and Pinamala. "Disparities in infrastructure as a barrier to attain faster inclusive growth trajectory: an inter-state analysis." Indian Journal of Economics and Development 11, no. 3 (2015): 725. http://dx.doi.org/10.5958/2322-0430.2015.00080.3.

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