Results 81 to 90 of about 133,666 (191)
A note on Solving Parametric Polynomial Systems
, 2011 Lazard and Rouillier in [9], by introducing the concept of discriminant variety, have described a new and efficient algorithm for solving parametric polynomial systems. In this paper we modify this algorithm, and we show that with our improvements the output of our algorithm is always minimal and it does not need to compute the radical of ideals.
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Научно-технический вестник информационных технологий, механики и оптикиCurrently, the development of new control approaches for asynchronous electric drives with stringent requirements for vibration-acoustic performance and spectral composition of autonomous inverter output currents represents a highly relevant research ...
F. V. Perevoshchikov, V. G. Bukreev
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Diffuser and Nozzle Design Optimization by Entropy Generation Minimization
Entropy, 2011 Diffusers and nozzles within a flow system are optimized with respect to their wall shapes for a given change in cross sections. The optimization target is a low value of the head loss coefficient K, which can be linked to the overall entropy generation ...
Bastian Schmandt, Heinz Herwig
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The Dynamics of Rotor with Rubbing
International Journal of Rotating Machinery, 1999 This paper presents the description of some phenomena associated with dynamic behavior of rotors interacting with stationary components. Numerical simulations show rotor vibration spectrum rich in subharmonic, quasi-periodic, and chaotic vibrations.
Jerzy T. Sawicki +2 more
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PARAMETRIC SYNTHESIS OF MODELS FOR MULTICRITERIAL ESTIMATION OF TECHNOLOGICAL SYSTEMS
Сучасний стан наукових досліджень та технологій в промисловості, 2017 The subject matter of the article is the problem of multicriteria estimation of the properties of technological systems (TS) in the process of their structural-parametric optimization. The goal of the study is to increase the efficiency of procedures for
Vladimir Beskorovainyi
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Industrial engineering methods in management of motor vehicle breakdowns behaviour analysis [PDF]
FME Transactions, 2011 The paper presents the methodology of grouping and processing of the data related to the motor vehicles' breakdowns in the observed sample. In order to perform statistical research with possible motor vehicle behaviour prediction, it is needed to have ...
Begović Danijel +3 more
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Industrial Robot Trajectory Optimization Based on Improved Sparrow Search Algorithm
MachinesThis paper proposes an enhanced multi-strategy sparrow search algorithm to optimize the trajectory of a six-axis industrial robot, addressing issues of low efficiency and high vibration impact on joints during operation.
Fei Ma +5 more
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Path Planning of Free-Floating Robot in Cartesian Space Using Direct Kinematics
International Journal of Advanced Robotic Systems, 2008 Dynamic singularities make it difficult to plan the Cartesian path of freefloating robot. In order to avoid its effect, the direct kinematic equations are used for path planning in the paper.
Wenfu Xu +4 more
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Algorithmic reduction of polynomially nonlinear PDE systems to parametric ODE systems
Differential-elimination algorithms apply a finite number of differentiations and eliminations to systems of partial differential equations. For systems that are polynomially nonlinear with rational number coefficients, they guarantee the inclusion of missing integrability conditions and the statement of of existence and uniqueness theorems for local ...
Deng, Siyuan +4 more
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Parametrized systems of generalized polynomial inequalities via linear algebra and convex geometry
PositivityAbstract We provide fundamental results on positive solutions to parametrized systems of generalized polynomial inequalities (with real exponents and positive parameters), including generalized polynomial equations .
Müller, Stefan, Regensburger, Georg
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