搜索结果: 76-90 共查到“理学 feedback”相关记录139条 . 查询时间(0.134 秒)
Galactic Coronae in the Intracluster Environment: Semi-confined Stellar-feedback-driven Outflows
High Energy Astrophysical Phenomena (astro-ph.HE)
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2010/12/24
Recently X-ray observations have shown the common presence of compact galactic coronae around intermediate-mass spheroid galaxies embedded in the intracluster/intragroup medium (ICM). We conduct 2-D h...
Extreme AGN Feedback and Cool Core Destruction in the X-ray Luminous Galaxy Cluster MACS J1931.8-2634
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
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2010/12/23
We report on a deep, multiwavelength study of the galaxy cluster MACS J1931.8-2634 using Chandra X-ray, Subaru optical, and VLA 1.4 GHz radio data. This cluster (z=0.352) harbors one of the most X-ray...
Suppressing decoherence and improving entanglement by quantum-jump-based feedback control in two-level systems
Suppressing decoherence improving entanglement by quantum-jump-based feedback two-level systems
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2010/10/19
We study the quantum-jump-based feedback control on the entanglement shared between two
qubits with one of them subject to decoherence, while the other qubit is under the control. This situation is v...
Feedback stabilisation of switched systems via iterative approximate eigenvector assignment
Feedback stabilisation of switched systems iterative approximate eigenvector assignment
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2010/12/15
This paper presents and implements an iterative feedback design algorithm for stabilisation of
discrete-time switched systems under arbitrary switching regimes. The algorithm seeks state feedback gai...
Cooperative Feedback for MIMO Interference Channels
Cooperative Feedback MIMO Interference Channels
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2010/12/8
Multi-antenna precoding effectively mitigates the interference in wireless networks. However, the precoding efficiency can be significantly degraded by the overhead due to the required feedback of cha...
Multiuser broadcast erasure channel with feedback - capacity and algorithms
Broadcast erasure channels feedback-based coding capacity achieving algorithms
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2010/12/1
We consider the N-user broadcast erasure channel where feedback from the users is fed back to the transmitter in the form of ACK messages.
Feedback effects in a coastal canopy-forming submersed plant bed
coastal canopy-forming submersed plant bed Feedback
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2014/4/17
Although physical and biogeochemical properties of an environment determine distribution and health of
biota, some organisms modify habitat conditions through complex interactions with their surround...
Control spiral wave dynamics using feedback signals from line detectors
spiral wave dynamics feedback signals line detectors
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2010/4/6
We numerically study trajectories of spiral-wave-cores in excitable systems modulated proportionally to the integral of the activity on the straight line, several or dozens of equi-spaced measuring po...
Contribution of soil moisture feedback to hydroclimatic variability
Contribution soil moisture feedback hydroclimatic variability
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2010/4/7
While a variety of model experiments and analyses of observations have explored the impact of soil moisture variation on climate, it is not yet clear how large or detectable soil moisture feedback is ...
Nonlocal feedback in nonlinear systems
Nonlocal feedback nonlinear systems
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2010/4/2
A shifted or misaligned feedback loop gives rise to a two-point nonlocality that is the spatial analog of a temporal delay. Important consequences of this nonlocal coupling have been found both in dif...
Carbon-cycle feedback smaller, but still positive（图）
Carbon-cycle global temperature the biosphere’s ability
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2010/1/28
Researchers in Switzerland and Germany have analysed data stretching back over 1000 years to get the best estimate yet of how changes in global temperature affect the biosphere’s ability to soak up ca...
Peroxyacetic acid in urban and rural atmosphere: concentration, feedback on PAN-NOx cycle and implication on radical chemistry
Peroxyacetic acid rural atmosphere PAN-NOx cycle radical chemistry
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2010/2/1
Peroxyacetic acid (PAA) is one of the most important atmospheric organic peroxides, which have received increasing attention for their potential contribution to the oxidation capacity of the troposphe...
The chaos and control of food chain model using nonlinear feedback
Food chain Limit cycles Chaotic behavior
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2010/9/10
This paper studies the chaos and control of a continuous time food chain model which contains one prey, one predator and super-predator. We show that this system can be asymptotically stabilized using...
Time-delayed feedback control of delay-coupled neurosystems and lasers
Time-delayed feedback control delay-coupled neurosystems lasers
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2010/4/7
We discuss applications of time-delayed feedback control to delay-coupled neural systems and lasers, in the framework of the FitzHugh-Nagumo neuron model and the Lang-Kobayashi laser model, respective...
Non-linear quenching of current fluctuations in a self-exciting homopolar dynamo,proved by feedback system theory
Non-linear quenching current fluctuations self-exciting homopolar dynamo feedback system theory
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2009/11/13
Hide (Nonlinear Processes in Geophysics, 1998) has produced a new mathematical model of a self-exciting homopolar dynamo driving a series- wound motor, as a continuing contribution to the theory of th...