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Artículos de revistas sobre el tema "Dynamic design of experiments"

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1

Mccaskey, S. D., and K. L. Tsui. "Analysis of dynamic robust design experiments." International Journal of Production Research 35, no. 6 (1997): 1561–74. http://dx.doi.org/10.1080/002075497195128.

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2

Schillinger, Mark. "Safe and dynamic design of experiments." at - Automatisierungstechnik 68, no. 5 (2020): 387–88. http://dx.doi.org/10.1515/auto-2020-0011.

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AbstractThis PhD thesis covers multiple approaches for dynamic design of experiments considering safety constraints. Special emphasis is put on the evaluation of these methods at real-world systems in the combustion engine domain.
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3

Espie, D., and S. Macchietto. "The optimal design of dynamic experiments." AIChE Journal 35, no. 2 (1989): 223–29. http://dx.doi.org/10.1002/aic.690350206.

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4

Phadke, Abhishek, F. Antonio Medrano, Chandra N. Sekharan, and Tianxing Chu. "Designing UAV Swarm Experiments: A Simulator Selection and Experiment Design Process." Sensors 23, no. 17 (2023): 7359. http://dx.doi.org/10.3390/s23177359.

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The rapid advancement and increasing number of applications of Unmanned Aerial Vehicle (UAV) swarm systems have garnered significant attention in recent years. These systems offer a multitude of uses and demonstrate great potential in diverse fields, ranging from surveillance and reconnaissance to search and rescue operations. However, the deployment of UAV swarms in dynamic environments necessitates the development of robust experimental designs to ensure their reliability and effectiveness. This study describes the crucial requirement for comprehensive experimental design of UAV swarm system
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5

Deflorian, Michael, and Susanne Zaglauer. "Design of Experiments for nonlinear dynamic system identification." IFAC Proceedings Volumes 44, no. 1 (2011): 13179–84. http://dx.doi.org/10.3182/20110828-6-it-1002.01502.

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6

TSUI, KWOK-LEUNG. "Modeling and analysis of dynamic robust design experiments." IIE Transactions 31, no. 12 (1999): 1113–22. http://dx.doi.org/10.1080/07408179908969912.

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7

Domagalski, Nathan R., Brendan C. Mack, and José E. Tabora. "Analysis of Design of Experiments with Dynamic Responses." Organic Process Research & Development 19, no. 11 (2015): 1667–82. http://dx.doi.org/10.1021/acs.oprd.5b00143.

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8

Lybbert, Travis J., Francisco B. Galarza, John McPeak, et al. "Dynamic Field Experiments in Development Economics: Risk Valuation in Morocco, Kenya, and Peru." Agricultural and Resource Economics Review 39, no. 2 (2010): 176–92. http://dx.doi.org/10.1017/s1068280500007231.

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The effective design and implementation of interventions that reduce vulnerability and poverty require a solid understanding of underlying poverty dynamics and associated behavioral responses. Stochastic and dynamic benefit streams can make it difficult for the poor to learn the value of such interventions to them. We explore how dynamic field experiments can help (i) intended beneficiaries to learn and understand these complicated benefit streams, and (ii) researchers to better understand how the poor respond to risk when faced with nonlinear welfare dynamics. We discuss and analyze dynamic r
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9

Zhang, Yang, Zhaobo Chen, and Yinghou Jiao. "A hybrid vibration isolator: Design, control, and experiments." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 230, no. 17 (2016): 2982–95. http://dx.doi.org/10.1177/0954406215604335.

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A hybrid vibration isolator (HVI) is presented with its structure, dynamic model, control strategy and preliminary experiments. The HVI is composed of the active piezostack actuator and the passive rubber isolator, which has compact structure and high reliability. Based on the dynamic model and the formula derivation of the transmissibility, the control algorithm is established using the linear quadratic regulator method. The simulations indicate that the vibrations acting on the load platform are vastly reduced, where the active piezostack-based actuator can eliminate the resonance peak signi
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10

Faramee, Veeravat, and Viboon Sangveraphunsiri. "Experiment of the State Variable Feedback for a Quadrotor." Applied Mechanics and Materials 619 (August 2014): 267–72. http://dx.doi.org/10.4028/www.scientific.net/amm.619.267.

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This work is the design of the robust attitude stabilization of a quadrotor. The dynamics model of the quadrotor is normally non-linear and it is difficult to obtain an accurate dynamic model. The linearized model is obtained based on data from experiments. The Multiple Input Multiple Output (MIMO) state variable feedback control is implemented to stabilize the system. The dynamic model based on approximated torques (roll, pitch, and yaw) as inputs and the dynamic model based on rotational speeds of the four rotors are used for design the controller. The experimental results from both dynamic
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11

Saccardo, Alberto, Beatriz Felices-Rando, Eleonora Sforza, and Fabrizio Bezzo. "Droop model identification via model-based design of experiments to describe microalgae nitrogen uptake in continuous photobioreactors." Chemical Engineering Journal 468, no. 2023 (2023): 143577. https://doi.org/10.1016/j.cej.2023.143577.

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The comprehension of nutrients uptake and exploitation dynamics is a key aspect to increase the efficiency and the environmental sustainability of microalgal production at industrial scale. The Droop model is suitable for the description of the effect of nutrients on microalgal growth, but presents challenges in parameter identification due to the high correlation between parameters and the significant experimental effort required. Model-based design of experiments is employed to plan information-rich experiments for precise parameters estimation, based on dynamic variations of dilution rate a
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12

Smith, Anne C., Mark R. Stefani, Bita Moghaddam, and Emery N. Brown. "Analysis and Design of Behavioral Experiments to Characterize Population Learning." Journal of Neurophysiology 93, no. 3 (2005): 1776–92. http://dx.doi.org/10.1152/jn.00765.2004.

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In population learning studies, between-subject response differences are an important source of variance that must be characterized to identify accurately the features of the learning process common to the population. Although learning is a dynamic process, current population analyses do not use dynamic estimation methods, do not compute both population and individual learning curves, and use learning criteria that are less than optimal. We develop a state-space random effects (SSRE) model to estimate population and individual learning curves, ideal observer curves, and learning trials, and to
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13

Hashimoto, Koichi, and Toshiro Noritsugu. "Design of a Robotic System that Plays with a Yoyo." Journal of Robotics and Mechatronics 11, no. 5 (1999): 387–92. http://dx.doi.org/10.20965/jrm.1999.p0387.

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Yoyo dynamics are discontinuous and highly nonlinear, and dynamic parameters are difficult to estimate precisely. Some parameters even change their sign at the loop bottom of yoyo's trajectory. Humans predict parameter change timing visually and sense yoyo dynamics through the fingers. Designing a robot that plays with a yoyo is difficult due to a lack of sensors and dynamic equations for sensing yoyo movement. We propose eventbased formulation for this based on an energy balance model and event-driven control. Simulations and experiments verified the validity of formulation and controller des
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14

BÄTZ, GEORG, MICHAEL SCHEINT, and DIRK WOLLHERR. "TOWARD DYNAMIC MANIPULATION FOR HUMANOID ROBOTS: EXPERIMENTS AND DESIGN ASPECTS." International Journal of Humanoid Robotics 08, no. 03 (2011): 513–32. http://dx.doi.org/10.1142/s0219843611002599.

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This paper discusses a control architecture to equip humanoid robots with dynamic manipulation skills. Such skills are beneficial, as they increase the dexterity of humanoid robots and improve their handling of unforeseen situations. The nature of manipulation poses challenges with respect to environment perception, action planning, and motion control. These challenges are addressed in the paper: a dynamic force/torque (F/T) observer is discussed to reconstruct the environment F/Ts and to improve the interaction control. A method for online motion planning is investigated, which generates traj
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15

Domagalski, Nathan R., Brendan C. Mack, and José E. Tabora. "Correction to “Analysis of Design of Experiments with Dynamic Responses”." Organic Process Research & Development 22, no. 11 (2018): 1578. http://dx.doi.org/10.1021/acs.oprd.8b00328.

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16

MOSKOWITZ, HERBERT, and ROBERT D. PLANTE. "DYNAMIC GRAPHICAL ASSESSMENT OF INTERACTION EFFECTS IN DESIGN OF EXPERIMENTS." Production and Operations Management 6, no. 4 (2009): 357–72. http://dx.doi.org/10.1111/j.1937-5956.1997.tb00480.x.

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17

Wang, Han, Chun Jie Wang, Xiao Li, and Qiu Hong Lin. "Large SAR Antenna Deployable Structure Design and Optimization." Applied Mechanics and Materials 163 (April 2012): 62–65. http://dx.doi.org/10.4028/www.scientific.net/amm.163.62.

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Remote sensing satellites equipped with large synthetic aperture radar (SAR) can image the earth in all weather and lighting conditions. For high packaging efficiency in launch and precise configuration on orbit, deployable mechanisms are designed to deploy the large SAR antenna panels. For the two-panel antenna, a six-bar-linkage deployable driving mechanism is designed. According to the design, a parameterized dynamic model is built in ADAMS software with secondary development technology to obtain its dynamics characteristics through simulation analysis. To improve the dynamic characteristic
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18

Asprey, S. P., S. Macchietto, and C. C. Pantelides. "Robust Optimal Designs for Dynamic Experiments." IFAC Proceedings Volumes 33, no. 10 (2000): 845–50. http://dx.doi.org/10.1016/s1474-6670(17)38645-7.

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19

Gagnol, Vincent, Belhassen C. Bouzgarrou, Pascal Ray, and Christian Barra. "Stability-Based Spindle Design Optimization." Journal of Manufacturing Science and Engineering 129, no. 2 (2006): 407–15. http://dx.doi.org/10.1115/1.2673400.

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Prediction of stable cutting regions is a critical requirement for high-speed milling operations. These predictions are generally made using frequency-response measurements of the tool-holder-spindle set obtained from a nonrotating spindle. However, significant changes in system dynamics occur during high-speed rotation. In this paper, a dynamic high-speed spindle-bearing system model is elaborated on the basis of rotor dynamics prediction and readjusted on the basis of experimental modal identification. The dependency of dynamic behavior on speed range is then investigated and determined with
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20

Liu, Jiale, Ting Zhao, and Shifeng Huang. "Design and implementation of adaptive control for industrial robot servo trajectory tracking." Journal of Physics: Conference Series 2787, no. 1 (2024): 012006. http://dx.doi.org/10.1088/1742-6596/2787/1/012006.

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Abstract To cope with the complex external environment of the robot, an online adaptive control method for industrial robots is implemented by using robot dynamic parameters as control variables. A Newton-Euler method is implemented to establish a rigid body dynamics model for the robot. Subsequently, we confirm the possibility of dynamic parameter adaptive control by employing the Lyapunov stability theory and derive the dynamic parameter estimation law. Three methods are proposed to realize the observation matrix containing reference information in the adaptive control algorithm. Through phy
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21

Cheng, Yung Chang, Deng Huei Lin, Cho-Pei Jiang, and Cheng Kang Lee. "Application of Uniform Design and Kriging Interpolation in Optimization of ITI Dental Implant with Dynamic Chewing Loads." Applied Mechanics and Materials 575 (June 2014): 512–15. http://dx.doi.org/10.4028/www.scientific.net/amm.575.512.

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The aim of this paper is to present an integrated procedure for the optimization of dimensions of the ITI dental implant with dynamic chewing loads. The procedure is composed of uniform design of experiments, explicit dynamics finite element analysis, Kriging interpolation, and Nelder-Mead simplex local search optimization method. Firstly, uniform design method is employed to create a set of experiments. Then, explicit dynamics finite element analysis software ANSYS/LS-DYNA is used to analyze the micromotion of cortical and cancellous bones while the dynamic chewing loads acts on the implant.
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22

Wang, Chen, Jinbao Chen, Xingliang Li, Heng Chen, Hong Nie, and Fei Lin. "Design, dynamic analysis, and experiments of MRF dampers for lunar landers." Advances in Space Research 68, no. 7 (2021): 3012–25. http://dx.doi.org/10.1016/j.asr.2021.05.029.

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23

Fiordalis, Andrew, and Christos Georgakis. "Optimizing Batch Crystallization Cooling Profiles: The Design of Dynamic Experiments Approach." IFAC Proceedings Volumes 43, no. 5 (2010): 31–36. http://dx.doi.org/10.3182/20100705-3-be-2011.00006.

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24

Shipley, G. A., C. A. Jennings, and P. F. Schmit. "Design of dynamic screw pinch experiments for magnetized liner inertial fusion." Physics of Plasmas 26, no. 10 (2019): 102702. http://dx.doi.org/10.1063/1.5120529.

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25

Martínez, Ernesto C., Mariano D. Cristaldi, and Ricardo J. Grau. "Design of Dynamic Experiments in Modeling for Optimization of Batch Processes." Industrial & Engineering Chemistry Research 48, no. 7 (2009): 3453–65. http://dx.doi.org/10.1021/ie8000953.

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26

Chang, Hsu-Hwa, and Yan-Kwang Chen. "Neuro-genetic approach to optimize parameter design of dynamic multiresponse experiments." Applied Soft Computing 11, no. 1 (2011): 436–42. http://dx.doi.org/10.1016/j.asoc.2009.12.002.

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27

He, Zhen, Panpan Zhou, Min Zhang, and Thong Ngee Goh. "A Review of Analysis of Dynamic Response in Design of Experiments." Quality and Reliability Engineering International 31, no. 4 (2014): 535–42. http://dx.doi.org/10.1002/qre.1627.

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28

Zhao, Fang, Mu Yi Lin, and Zhun Wang. "On Hydraulic Brake System Using Bench Experiments for Off-Road Vehicles." Advanced Materials Research 588-589 (November 2012): 327–30. http://dx.doi.org/10.4028/www.scientific.net/amr.588-589.327.

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The full power hydraulic brake system has several advantages over traditional brake actuation systems. These systems are capable of supplying fluid to a range of very small and large volume service brakes with actuation that is faster than air/hydraulic brake systems. Implementation of full power hydraulic brake system in off-road vehicles calls for good understanding of its dynamic characteristics. In this paper, we consider the problem of dynamic modeling of the brake system and develop a dynamic model for a hydraulic brake valve. First, the dynamic characteristics of full power hydraulic br
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29

Sektani, K., A. Tsouvalas, and A. Metrikine. "mechanical bridge machineries: phenomenological modelling and experiments." Journal of Physics: Conference Series 2647, no. 4 (2024): 042008. http://dx.doi.org/10.1088/1742-6596/2647/4/042008.

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Abstract The reassessment of existing mechanical bridge machineries in The Netherlands has prompted the development of acceptance/rejection criteria for evaluating their structural safety. The current design code in The Netherlands [1, 2] establishes an ultimate limit state, primarily intended for the design of new machineries, employing a conservative approach with upper bounds on maximum loads. However, to reassess existing bridges and prevent unnecessary replacements, a more accurate prediction of the dynamic response is essential. The current code relies on a linear single degree of freedo
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30

Клубничкин, Владислав, Vladislav Klubnichkin, Евгений Клубничкин, et al. "Program and methodology for carrying out experimental studies of a loading and transport machine in an application package." Forestry Engineering Journal 7, no. 4 (2018): 175–82. http://dx.doi.org/10.12737/article_5a3cf5129450f7.98447330.

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The article presents the program and methodology for conducting experimental studies of the dynamics of the tracked movement of loading and transport machines in the applied program package "Universal mechanism" using module "tracked vehicles". Presents the objectives of the auxiliary and the main dynamic experiments. Auxiliary experiments serve the purpose of calculation of determining the initial state of tracked loading and transport machines and training perform basic experiments. The main experiments designed to study the dynamic properties of the tracked loading-transport machines. The l
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31

Mehedi, Ibrahim M., Uzair Ansari, and Ubaid M. AL-Saggaf. "Three degrees of freedom rotary double inverted pendulum stabilization by using robust generalized dynamic inversion control: Design and experiments." Journal of Vibration and Control 26, no. 23-24 (2020): 2174–84. http://dx.doi.org/10.1177/1077546320915333.

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The aim of this article was to determine control strategy for balance control of rotary double inverted pendulum system, which is highly nonlinear and unstable under-actuated system. The complexities involved in rotary double inverted pendulum dynamics make this system a useful engineering test bed to test and verify newly designed controllers. In this article, a constraint-based control approach titled robust generalized dynamic inversion is designed and implemented for robust stabilization of rotary double inverted pendulum system. The robust generalized dynamic inversion control is designed
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32

Skliarenko, Nataliia, and Ivanna Bukharina. "Immersive Technologies in Book Design: Design Principles." Demiurge: Ideas, Technologies, Perspectives of Design 5, no. 2 (2022): 270–82. https://doi.org/10.31866/2617-7951.5.2.2022.266919.

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Purpose of the article. The paper reflects the peculiarities of using immersive technologies in the design of book products, aimed at acquiring the experience of immersion through the activation of feelings, as the problem of intensive development of digital technologies encourages designers to rethink the ways of design in this area. The research methodology is based on the system approach to design and methods of the structural-compositional, functional and artistic analysis. The interdisciplinary nature of design helps deepen communicative experience of readers. The scie
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33

SEECHARAN, TURUNA S., and GORDON J. SAVAGE. "PROBABILITY-BASED DESIGN OPTIMIZATION OF DYNAMIC SYSTEMS." International Journal of Reliability, Quality and Safety Engineering 19, no. 01 (2012): 1250001. http://dx.doi.org/10.1142/s0218539312500015.

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The mechanistic model of a dynamic system is often so complex that it is not conducive to probability-based design optimization. This is so because the common method to evaluate probability is the Monte Carlo method which requires thousands of lifetime simulations to provide probability distributions. This paper presents a methodology that (1) replaces the implicit mechanistic model with a simple explicit model, and (2), transforms the dynamic, probabilistic, problem into a time invariant probability problem. Probabilities may be evaluated by any convenient method, although the first-order rel
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34

Shi, Ao, Bo Lu, Dangguo Yang, Xiansheng Wang, Junqiang Wu, and Fangqi Zhou. "Study on model design and dynamic similitude relations of vibro-acoustic experiment for elastic cavity." Modern Physics Letters B 32, no. 12n13 (2018): 1840047. http://dx.doi.org/10.1142/s021798491840047x.

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Coupling between aero-acoustic noise and structural vibration under high-speed open cavity flow-induced oscillation may bring about severe random vibration of the structure, and even cause structure to fatigue destruction, which threatens the flight safety. Carrying out the research on vibro-acoustic experiments of scaled down model is an effective means to clarify the effects of high-intensity noise of cavity on structural vibration. Therefore, in allusion to the vibro-acoustic experiments of cavity in wind tunnel, taking typical elastic cavity as the research object, dimensional analysis and
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35

Fiordalis, Andrew, and Christos Georgakis. "Design of Dynamic Experiments Versus Model-Based Optimization of Batch Crystallization Processes." IFAC Proceedings Volumes 44, no. 1 (2011): 14019–24. http://dx.doi.org/10.3182/20110828-6-it-1002.01251.

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36

Chen, Bing H., Sean Bermingham, Andreas H. Neumann, Herman J. M. Kramer, and Steven P. Asprey. "On the Design of Optimally Informative Experiments for Dynamic Crystallization Process Modeling." Industrial & Engineering Chemistry Research 43, no. 16 (2004): 4889–902. http://dx.doi.org/10.1021/ie030649n.

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37

Wang, Haibo, Junsi Chen, Zhanxia Feng, et al. "Development of a Mobile Buoy with Controllable Wings: Design, Dynamics Analysis and Experiments." Journal of Marine Science and Engineering 12, no. 1 (2024): 150. http://dx.doi.org/10.3390/jmse12010150.

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Marine monitoring equipment such as Argo profiling buoys and underwater gliders are important devices for oceanographic research and marine resource exploration. In this study, a novel mobile buoy capable of vertical profiling motion like Argo profiling buoys and sawtooth gliding motion like underwater gliders is proposed. The proposed mobile buoy can switch between the two motion modes with controllable wings. To verify the feasibility of the proposed mobile buoy, a fluid–multibody coupling model considering multibody dynamics and hydrodynamics was developed to investigate the dynamic respons
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38

Kraleva, Radoslava Stankova, Velin Spasov Kralev, Nina Sinyagina, Petia Koprinkova-Hristova, and Nadejda Bocheva. "Design and Analysis of a Relational Database for Behavioral Experiments Data Processing." International Journal of Online Engineering (iJOE) 14, no. 02 (2018): 117. http://dx.doi.org/10.3991/ijoe.v14i02.7988.

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In this paper, the results of a comparative analysis between different approaches to experimental data storage and processing are presented. Several studies related to the problem and some methods for solving it have been discussed. Different types of databases, ways of using them and the areas of their application are analyzed. For the purposes of the study, a relational database for storing and analyzing a specific data from behavioral experiments was designed. The methodology and conditions for conducting the experiments are described. Three different indicators were analyzed, respectively:
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39

Song, Yumin, Bin Hu, and Xiaoliang Meng. "Efficient Dynamic Performance Prediction of Railway Bridges Situated on Small-Radius Reverse Curves." Shock and Vibration 2024 (April 9, 2024): 1–17. http://dx.doi.org/10.1155/2024/6666054.

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Bridges situated on small-radius reverse curves play a pivotal role within some railway networks, exerting influence over project-wide design progress. Typically, assessing the safety of bridge design parameters necessitates laborious vehicle-bridge dynamic coupling vibration numerical analysis or model experiments. To streamline the design process and enhance efficiency during the preliminary design phase, we propose an efficient method to assess the dynamic performance of bridges on small-radius reverse curves. This approach enables direct prediction of bridge dynamic performance based on de
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40

Kanamori, Mitsuru, and Masayoshi Tomizuka. "Dynamic Anti-Integrator-Windup Controller Design for Linear Systems With Actuator Saturation." Journal of Dynamic Systems, Measurement, and Control 129, no. 1 (2006): 1–12. http://dx.doi.org/10.1115/1.2397146.

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The present paper is concerned with the design of dynamic anti-integrator-windup controllers for critically stable linear systems with a single pole at the origin. The constant gain term in the conventional anti-windup controller is extended to have dynamics represented by a transfer function. The proposed dynamic anti-windup compensator is similar to the one based on co-prime factorization of the plant. The overall controller includes an internal model for constant signals and achieves regulation for constant disturbance and reference inputs as long as the asymptotic control input stays withi
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41

Ma, Jiawang, Guanlin Qiu, Weichen Guo, Peitong Li, and Gan Ma. "Design, Analysis and Experiments of Hexapod Robot with Six-Link Legs for High Dynamic Locomotion." Micromachines 13, no. 9 (2022): 1404. http://dx.doi.org/10.3390/mi13091404.

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An important feature of a legged robot is its dynamic motion performance. Traditional methods often improve the dynamic motion performance by reducing the moment of inertia of robot legs or by adopting quasi-direct drive actuators. This paper proposes a method to enhance the dynamic performance of a legged robot by transmission mechanism. Specifically, we present a unique six-link leg mechanism that can implement a large output motion using a small drive motion. This unique feature can enhance the robots’ dynamic motion capability. Experiments with a hexapod robot verified the effectiveness of
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42

Brown, Nathan P., Tommy Ao, Daniel H. Dolan, Marcus D. Knudson, and J. Matthew D. Lane. "DENNIS: a design and analysis tool for dynamic material x-ray diffraction experiments." Journal of Instrumentation 19, no. 07 (2024): P07030. http://dx.doi.org/10.1088/1748-0221/19/07/p07030.

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Abstract We present DENNIS (Diffraction Experiment desigN and aNalysiS): a graphical software tool useful for the design and analysis of dynamic x-ray diffraction experiments, such as those performed on the Z Pulsed Power Facility, Thor Pulsed Power Generator, and Dynamic Compression Sector (DCS) of the Advanced Photon Source. DENNIS provides rapid powder and single-crystal diffraction pattern predictions and powder diffraction pattern image integration in three-dimensional geometries. Additional features include crystallographic information file reading, image processing, and synthetic diffra
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43

Tsuruta, K., and K. Kojima. "Dynamic Design Procedure for HVAC Ducts." Journal of Pressure Vessel Technology 110, no. 4 (1988): 413–21. http://dx.doi.org/10.1115/1.3265624.

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Design layout of ducts and supports systems which make up the heating, ventilating and air-conditioning systems (HVAC) is based upon the Japanese Industrial standard (JIS)[1] for hanger support systems conforming to SMACNA[2] standards of high-rigidity design, where emphasis is placed on buildings containing duct systems. However, since high-rigidity systems involve raising the rigidity of the total system, the weight and number of support structures have to be increased, thus posing economic problems. On the other hand, hanger systems are problematic due to their structural weakness. Therefor
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44

Ertas, Bugra H., and John M. Vance. "Rotordynamic Force Coefficients for a New Damper Seal Design." Journal of Tribology 129, no. 2 (2006): 365–74. http://dx.doi.org/10.1115/1.2464138.

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The objective of the following work was to determine frequency-dependent rotordynamic force coefficients for a new annular gas damper seal design. Both rotating and nonrotating experimental tests are presented for inlet pressures at 1000psig(69bar), a frequency excitation range of 20-300Hz, and rotor speeds up to 15,200rpm. Two different testing methods were used for determining coefficients: (1) dynamic pressure response method and (2) mechanical impedance method. The dynamic pressure method required the measurement of internal seal cavity pressure modulations in combination with the vibrator
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45

Vdovin, D. S., I. V. Chichekin, Ya Yu Levenkov, and A. B. Fominykh. "Development of a quadricycle dynamic mathematical model methodology to calculate early design stages loads on the frame and chassis." Trudy NAMI, no. 2 (July 17, 2021): 46–57. http://dx.doi.org/10.51187/0135-3152-2021-2-46-57.

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Introduction (problem statement and relevance). To create a competitive vehicle in modern conditions, it is important to be able to determine its power elements loads at the early stages of design. A vehicle dynamic mathematical models allows you to solve this problem.The purpose of the study was to develop a dynamic mathematical model methodology of a quadricycle to determine its power elements loads under given operating conditions.Methodology and research methods. The article presents a dynamic mathematical model of a wheeled vehicle (quadricycle) technique using a created mathematical mode
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46

Adema, Niels, Menno Kloosterman, and Gerard Schepers. "Development of a second-order dynamic stall model." Wind Energy Science 5, no. 2 (2020): 577–90. http://dx.doi.org/10.5194/wes-5-577-2020.

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Abstract. Dynamic stall phenomena carry the risk of negative damping and instability in wind turbine blades. It is crucial to model these phenomena accurately to reduce inaccuracies in predicting design driving (fatigue and extreme) loads. Some of the inaccuracies in current dynamic stall models may be due to the fact that they are not properly designed for high angles of attack and that they do not specifically describe vortex shedding behaviour. The Snel second-order dynamic stall model attempts to explicitly model unsteady vortex shedding. This model could therefore be a valuable addition t
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47

Chang, F., and Z.-H. Lu. "Dynamic model of an air spring and integration into a vehicle dynamics model." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 222, no. 10 (2008): 1813–25. http://dx.doi.org/10.1243/09544070jauto867.

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It is worthwhile to design a more accurate dynamic model for air springs, to investigate the dynamic behaviour of an air spring suspension, and to analyse and guide the design of vehicles with air spring suspensions. In this study, a dynamic model of air spring was established, considering the heat transfer process of the air springs. Two different types of air spring were tested, and the experimental results verified the effectiveness of the air spring model compared with the traditional model. The key factors affecting the computation accuracy were studied and checked by comparing the result
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48

Raudenbush, Stephen W., and Daniel Schwartz. "Randomized Experiments in Education, with Implications for Multilevel Causal Inference." Annual Review of Statistics and Its Application 7, no. 1 (2020): 177–208. http://dx.doi.org/10.1146/annurev-statistics-031219-041205.

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Education research has experienced a methodological renaissance over the past two decades, with a new focus on large-scale randomized experiments. This wave of experiments has made education research an even more exciting area for statisticians, unearthing many lessons and challenges in experimental design, causal inference, and statistics more broadly. Importantly, educational research and practice almost always occur in a multilevel setting, which makes the statistics relevant to other fields with this structure, including social policy, health services research, and clinical trials in medic
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49

Yin, Jianjun, Zhijian Chen, Chao Liu, Maile Zhou, and Lu Liu. "Design and Experiments of a Real-Time Bale Density Monitoring System Based on Dynamic Weighing." Sensors 23, no. 4 (2023): 1778. http://dx.doi.org/10.3390/s23041778.

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Bale density is one of the main performance indicators to measure the quality of baler operation. In this study, a real-time baler bale density monitoring system was designed for the problem of difficult real-time measurement of bale density on round balers. Firstly, a weighing calculation model for the rolling and sliding stage of the bale was established, and the dynamic characteristics during the contact between the bale and the inclined surface were analyzed based on ADAMS dynamics simulation. Then, a real-time monitoring system for the bale density based on the contact pressure of the inc
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50

Feng, Xiao Jing, Xi Li, Wang Chao, Xue Hai Zhou, and Jun Neng Zhang. "A Hardware/Software Co-Design Flow for Dynamic Partial Reconfiguration." Advanced Materials Research 433-440 (January 2012): 5172–77. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.5172.

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The strict requirements on both performance and flexibility lead us to apply Dynamic Partial Reconfiguration (DPR) technology in embedded systems. However, existing DPR design flows are still immature, since previous works mainly focus on hardware designs while ignore software designs for DPR. To remedy this weakness, this paper proposes a hardware/software (HW/SW) co-design flow for DPR. The co-design flow aims at accelerating the process of DPR designs, and it merges software and hardware design flows to make them operate in parallel. Besides, in order to validate the effectiveness of our co
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