搜索结果: 31-45 共查到“理学 feedback”相关记录139条 . 查询时间(0.101 秒)
The Role Of Stellar Feedback In Galaxy Evolution
Pure sciences Galaxies X-ray Stellar feedback Galaxy evolution
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2014/12/9
Aiming at understanding the role of stellar feedback in galaxy evolution, I present a study of the hot interstellar medium in several representative galaxies, based primarily on X-ray observations as ...
Constraining Stellar Feedback: Ionized Gas Structures In Local Starburst Galaxies
Pure sciences Ionized gas structures Interstellar medium Starburst galaxies Stellar feedback
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2014/12/9
Stellar feedback, i.e., the return of mechanical energy from supernova explosions, and massive star and AGN winds to the interstellar medium, is one of the fundamental processes that shape galaxy evol...
A Mo dified Schur Metho d for Robust Pole Assignment in State Feedback Control
pole assignment state feedback control robustness departure from normality real Schur form
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2014/10/10
Recently, a SCHUR metho d was prop osed in [8] to solve the robust p ole assignment problem in state feedback control. It takes the departure from normality of the closed-lo op system matrix A c as th...
Feedback and Optimal Sensitivity: Model Reference Transformations, Multiplicative Seminorms, and Approximate Inverses
Feedback and Optimal Sensitivity Model Reference Transformations Multiplicative Seminorms Approximate Inverses
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2014/8/13
In this paper, the problem of sensitivity reduction by feed-back is formulated as an optimization problem and separated from the problem of stabilization. Stable feedback schemes obtainable from a giv...
On the Input-Output Stability of Time-Varying Nonlinear Feedback Systems Part I: Conditions Derived Using Concepts of Loop Gain, Conicity, and Positivity
On the Input-Output Stability Time-Varying Nonlinear Feedback Svstems-Part i Conditions Involving Circles Frequency Plane Sector Nonlinearities
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2014/8/13
On the Input-Output Stability of Time-Varying Nonlinear Feedback Systems Part I: Conditions Derived Using Concepts of Loop Gain, Conicity, and Positivity.
On the Input-Output Stability of Time-Varying Nonlinear Feedback Svstems-Part i 11: Conditions Involving Circles in the Frequency Plane and Sector Nonlinearities
On the Input-Output Stability Time-Varying Nonlinear Feedback Svstems-Part i Conditions Involving Circles Frequency Plane Sector Nonlinearities
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2014/8/13
On the Input-Output Stability of Time-Varying Nonlinear Feedback Svstems-Part i 11: Conditions Involving Circles in the Frequency Plane and Sector Nonlinearities.
On the Input-Output Stability of Time-Varying Nonlinear Feedback Systems Part I: Conditions Derived Using Concepts of Loop Gain, Conicity, and Positivity
On the Input-Output Stability Time-Varying Nonlinear Feedback Systems Part I: Conditions Derived Concepts of Loop Gain, Conicity Positivity
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2014/7/2
The object of this paper is to outline a stability theory for input-output problems using functional methods. More particularly, the aim is to derive open loop conditions for the boundedness and conti...
On the Input-Output Stability of Time-Varying Nonlinear Feedback Svstems-Part i 11: Conditions Involving Circles in the Frequency Plane and Sector Nonlinearities
On the Input-Output Stability Time-Varying Nonlinear Feedback Svstems-Part i 11 Conditions Involving Circles Frequency Plane Sector Nonlinearities
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2014/7/2
The object of this paper is to outline a stability theory based on functional methods. Part I of the paper was devoted to a general feedback con&pration. Part I1 is devoted to a feedback system consis...
Feedback and Optimal Sensitivity: Model Reference Transformations, Multiplicative Seminorms, and Approximate Inverses
Feedback and Optimal Sensitivity Model Reference Transformations Multiplicative Seminorms Approximate Inverses
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2014/7/2
In this paper, the problem of sensitivity reduction by feedback is formulated as an optimization problem and separated from the problem of stabilization. Stable feedback schemes obtainable from ag ive...
Galaxies on FIRE: Star feedback results in less-massive galaxies（图）
Galaxies Star
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2014/3/18
For decades, astrophysicists have encountered a puzzling contradiction: although many galactic-wind models—simulations of how matter is distributed in our universe—predict that the majority of the "no...
Decorrelation of neural-network activity by inhibitory feedback
Decorrelation of neural-network inhibitory feedback Neurons and Cognition
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2012/5/2
Correlations in spike-train ensembles can seriously impair the encoding of information by their spatio-temporal structure. An inevitable source of correlation in finite neural networks is common presy...
Switching between oscillations and homeostasis in competing negative and positive feedback motifs
negative feedback positive feedback oscillation noise circadian rhythm
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2012/5/2
We analyze a class of network motifs in which a short, two-node positive feed- back motif is inserted in a three-node negative feedback loop. We demonstrate that such networks can undergo a bifurcatio...
State Feedback Control for Adjusting the Dynamic Behavior of a Piezoactuated Bimorph Atomic Force Microscopy Probe
State Feedback Control Dynamic Behavior Piezoactuated Bimorph Atomic Microscopy Probe Atomic Physics
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2012/4/24
We adjust the transient dynamics of a piezo-actuated bimorph Atomic Force Microscopy (AFM) probe using a state feedback controller. This approach enables us to adjust the quality factor and the resona...
The effect of feedback on the emission properties of the Warm-Hot Intergalactic Medium
feedback emission properties the Warm-Hot Intergalactic Medium
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2012/2/21
At present, 30-40 per cent of the baryons in the local Universe is still undetected. According to theoretical predictions, this gas should reside in filaments filling the large-scale structure (LSS) i...
Generation of continuous-variable quadripartite square cluster state and its entanglement improvement via quantum feedback
quantum optics continuous variable cluster state feedback
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2011/12/15
In this paper, we investigate the generation of continuous-variable quadripartite square cluster state of optical fields and discuss the enhancement of the multipartite entanglement of the cluster sta...