Suggested Topics within your search.
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1761
Investigation of a spatial double pendulum: an engineering approach
Published 2006-01-01“…Movement equations (i.e., mathematical model) were derived for this SDP, and oscillations of the system were computed and compared with experimental results. …”
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1762
Design and Analysis of Back Lifting Mechanism of Modular Multifunctional Nursing Bed
Published 2022-01-01“…By analyzing and comparing the advantages and disadvantages of the existing back lifting mechanism,a two-fold back lifting mechanism is designed,and the corresponding mathematical model of motion is established. With the help of Matlab,the theoretical motion analysis is carried out, and it is compared with the simulation results of Adams kinematics to verify the rationality of the mechanism design. …”
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1763
Modeling and Implementation of a Power Estimation Methodology for SystemC
Published 2012-01-01“…This work describes a methodology to model power consumption of logic modules. A detailed mathematical model is presented and incorporated in a tool for translation of models written in VHDL to SystemC. …”
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1764
Service-based network as a platform: research on a new information communication network architecture
Published 2023-01-01“…The deployment of 5G enables the network to expand from serving individuals to the industry.The evolution of mobile communication system was analyzed, and a new architecture development direction-service-based network as a platform was proposed.Facing the fundamental challenge of diversified requirements of industrial scenarios, the new architecture employed “platform” to address the generalization and scalability obstacles, and employed “service” to address heterogeneous characteristics of the network.The network service level assurance could also be guaranteed.The definition, overall architecture and mathematical model of “service-based network as a platform” were given.Based on the innovative practice of 5G service-based architecture (SBA) design, the principles of service design were proposed, and then the hierarchical design ideas were given.…”
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1765
Application study of Costas arrays in multiuser radar systems
Published 2010-01-01“…The construction and performance of frequency hopping codes were discussed but the emphasis was laid on the construction of Costas arrays.The frequency hopping codes called Costas arrays could be designed to have almost ideal auto-ambiguity and good cross-ambiguity.A mathematical model was established for frequency hop coded waveforms and the conditions for orthogonal sub-pulse were given.The auto-and cross-correlation properties of Costas arrays were illuminated,the practical properties of cross-correlation function of permutation matrices were revealed,the algorithms for computing ambiguity function were presented and the simulation results were demonstrated.After a study of the cross-ambiguity properties of Costas arrays the ways were suggested to reduce interference in a multiuser radar system.…”
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1766
Numerical Simulations and Control of Offshore Energy Harvesting Using Piezoelectric Materials in a Portal Frame Structure
Published 2021-01-01“…Thus, using the current models for a portal frame in the literature and the spectrum of available energy in sea waves, a nonlinear mathematical model accounting for the coupling of a nonlinear piezoelectric material is considered. …”
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1767
Evaluation of effectiveness of resource-saving technologies in machine-building industry
Published 2020-06-01“…The purpose of the article is to summarize the main trends in the implementation of resource-saving technologies at the enterprises of the machine-building complex of the economy and the development of a mathematical model to assess the effectiveness of the use of resource-saving systems. …”
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1768
Performance Modelling of Dual Air/Water Collector in Solar Water and Space Heating Application
Published 2019-01-01“…In the present work, the detailed mathematical model of a dual air/water solar collector (DAWC) has been developed and experimentally verified. …”
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1769
Experimental Snap Loading of Synthetic Ropes
Published 2005-01-01“…The effects of the type of rope, drop height, drop weight, whether the rope has been subjected to static precycling, and the number of previous dynamic tests are examined. A mathematical model is proposed for the rope force as a function of the displacement and velocity of the weight.…”
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1770
Performance analysis and optimization of cooperative spectrum sensing for maximizing secondary throughput
Published 2011-01-01“…The relationship among SU,detection threshold,bandwidth,spectrum utilization and secondary throughput in cognitive radio networks was analyzed,which indicates the lower false alarm probability,higher spectrum utilization and larger secondary throughput with less SU in C-CSS(censoring based cooperative spectrum sensing),besides,the required detection threshold for maximizing the secondary throughput different with the traditional CSS under given SU number and the objective demand.Based on the NP criticism,an optimal cooperative spectrum sensing algorithm for maximizing the secondary throughput was proposed by solving the mathematic model to obtain the optimal party of SU and detection threshold.Theoretical analysis and simulation results show that the maximized secondary throughput achieved by the proposed optimal algorithm,while maintaining the given detection probability.…”
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1771
Delay equations modeling the effects of phase-specific drugs and immunotherapy on proliferating tumor cells
Published 2012-02-01“…In this work we present a mathematical model for tumor growth based on the biology of the cell cycle.For an appropriate description of the effects of phase-specific drugs, it is necessary to look at the cell cycle and itsphases. …”
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1772
A model of thermotherapy treatment for bladder cancer
Published 2016-07-01“…We developed a mathematical model and numerically simulated the physical processes related to this treatment. …”
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1773
Identifying Initial Condition in Degenerate Parabolic Equation with Singular Potential
Published 2017-01-01“…This problem can be formulated in a least-squares framework, an iterative procedure which minimizes the difference between the given measurements and the value at sensor locations of a reconstructed field. The mathematical model leads to a nonconvex minimization problem. …”
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1774
FATIGUE LIFE PREDICTION FOR ROW ANGULAR CONTACT BALL BEARINGS UNDER THERMO-MECHANICAL COUPLING BASED ON FEM
Published 2018-01-01“…Based on the L-P fatigue life and Hertz contact theory,an mathematical model was established with the combination of Goodman formula,material P-S-N curves and EM modify rule. …”
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1775
Modeling of Random Delays in Networked Control Systems
Published 2013-01-01“…In order to compensate for random delays which may lead to performance degradation and instability of NCSs, it is necessary to establish the mathematical model of random delays before compensation. …”
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1776
Bioeconomic-Epidemiological Model of Scomber colias Population in the Moroccan Coasts
Published 2021-01-01“…In this paper, we develop and study a mathematical model for the dynamics of Scomber colias and Thunnus thynnus prey-predator with parasitic helminths. …”
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1777
Two-level cache based streaming media scheduling algorithm for mobile network
Published 2007-01-01“…A novel caching system architecture for mobile streaming was proposed,which was named 2CMSA(two-level cache mobile streaming architecture).In this system,limitations for mobile streaming system such as small memory size in mobile terminal and low bandwidth in wireless access network were avoided.According to the 2CMSA,a scheduling algorithm of 2CMSS(two-level cache based mobile streaming scheduling) was designed;mathematical models were also achieved to analyze the performance of this scheduling algorithm.Simulation experiment proves that,comparing to the original mobile streaming system,by using the new two-level cache architecture and cache based scheduling algorithm,the network transmission cost and the client startup delay of the mobile streaming services can be decreased effectively.…”
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1778
Theoretical analysis of expansion process of wet water vapor in working chamber of piston long-stroke linear drive of compressor unit
Published 2022-03-01“…The study is carried out on the basis of the developed mathematical model, which includes both the basic thermodynamic equations and the equations describing the process of heat exchange of the working substance with the walls of the working chamber during the expansion process. …”
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1779
On the Connectivity of Wireless Network Systems and an Application in Teacher-Student Interactive Platforms
Published 2014-01-01“…To investigate the connectivity of wireless network systems, this paper takes covering approximation spaces as mathematical models of wireless network systems. With the help of covering approximation operators, this paper characterizes the connectivity of covering approximation spaces by their definable subsets. …”
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1780
Research of Cycloidal Pump for Hybrid Transmission(E-CVT)
Published 2020-04-01“…The oil pump equipped with E-CVT has the function of providing cooling lubrication flow and brake flow.In order to study the use characteristics of cycloidal pump as the power source of E-CVT hydraulic system,the mathematical model is established based on theoretical analysis,and the multi-domain simulation model including signal domain,hydraulic domain and mechanical domain is built by AMESim platform.The model is verified by experimental data.Based on the simulation model,the effects of oil temperature,rotation speed and load pressure on volumetric efficiency and flow characteristics are dynamically studied.At the same time,the low oil temperature start failure of the oil pump in the E-CVT is predicted by the model connection filter,oil sump and pipeline,which provides a reference for the subsequent fuel pump motor related strategy design.…”
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