Results 31 to 40 of about 128,614 (280)
Virtual Flux Control Methods for Grid-Forming Converters: A Four-Method Comparison
Applied SciencesThe increasing penetration of renewable energy generation in recent years has introduced significant changes and challenges to modern power systems. One of the most critical challenges is the reduction in system inertia, which decreases grid stability ...
Juan Dolado Fernández +5 more
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Scientific Reports, 2014 AbstractThe control of spatial propagation properties of narrow light beams such as divergence, focusing or imaging are main objectives in optics and photonics. In this letter, we propose and demonstrate experimentally a flat focusing mirror, based on an especially designed dielectric structure without any optical axis.
Cheng, Yu Chieh +7 more
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Applied SciencesThis paper presents a comparative analysis of the results obtained from three different measuring machines using tactile measurement techniques. The influence of the number and method of collecting measurement points on the detection of shape errors of ...
Grzegorz Włażewski +4 more
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Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2023 Precision flat surfaces are required for the precision surface plates of measurement instruments and the sliding components of precision machine tools.
Masakazu ARUGA +4 more
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Flatness and Monge parameterization of two-input systems, control-affine with 4 states or general with 3 states [PDF]
, 2005 This paper studies Monge parameterization, or differential flatness, of control-affine systems with four states and twocontrols. Some of them are known to be flat, and this implies admitting a Monge parameterization.
Aranda-Bricaire +14 more
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MicromachinesDifficult-to-cut titanium matrix composites (TMCs) are widely used in the aerospace, automotive, and defense sectors due to their excellent physical properties.
Shen Niu +4 more
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Representability of Hom implies flatness [PDF]
, 2003 Let $X$ be a projective scheme over a noetherian base scheme $S$, and let $F$ be a coherent sheaf on $X$. For any coherent sheaf $E$ on $X$, consider the set-valued contravariant functor $Hom_{E,F}$ on $S$-schemes, defined by $Hom_{E,F}(T) = Hom(E_T,F_T)$
Nitsure, Nitin
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Journal of Algebra, 1999 The context of this paper is complete cohomology and modules are of type \((FP)_\infty\). Let \(\text{LH}{\mathbf F}\) denote the class of hierarchically decomposable groups and \(\text{H}_1{\mathbf F}\) the subclass of groups acting on a finite dimensional contractible CW-complex, in such a way that the setwise stabiliser of each cell is equal to the ...
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Communications in Algebra, 2015 Let $R$ be a ring and $M$ be a right $R$-module. $M$ is called neat-flat if any short exact sequence of the form $0\to K\to N\to M\to 0$ is neat-exact i.e. any homomorphism from a simple right $R$-module $S$ to $M$ can be lifted to $N$. We prove that, a module is neat-flat if and only if it is simple-projective.
Buyukasik, Engin, Durgun, Yilmaz
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Investigation and Optimization of Load Distribution for Tandem Cold Steel Strip Rolling Process
Metals, 2020 In order to improve the cold rolled steel strip flatness, the load distribution of the tandem cold rolling process is subject to investigation and optimization.
Xin Jin +5 more
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