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2821
À travers les villes : Europe/USA/Antonioni, une hétérotopie en mouvement
Published 2013-09-01“…Le cinéma constitue l’un des moyens de percevoir l’espace urbain de manière spécifique, notamment par les déplacements au travers des villes – tout en (se) jouant de ses effets propres : montage, temporalité, espace de l’image. …”
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2822
Education that liberates and educates according to the perspective of the Qur’an
Published 2021-12-01“…In general, Islamic education idealizes the birth of educational output that frees itself from the lusts that pollute the soul and frees its people from various kinds of social problems, such as injustice, economic inequality, discrimination and oppression. …”
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2823
Bit Error Rate Performance of a MIMO-CDMA System Employing Parity-Bit-Selected Spreading in Frequency Nonselective Rayleigh Fading
Published 2011-01-01“…We analytically derive the upper bound for the bit error rate (BER) performance of a single user multiple input multiple output code division multiple access (MIMO-CDMA) system employing parity-bit-selected spreading in slowly varying, flat Rayleigh fading. …”
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2824
Joint Angles and Mutual Coupling Estimation Algorithm for Bistatic MIMO Radar
Published 2012-01-01“…We study the problem of angle estimation for a bistatic multiple-input multiple-output (MIMO) radar with unknown mutual coupling and proposed a joint algorithm for angles and mutual coupling estimation with the characteristics of uniform linear arrays and subspaces exploitation. …”
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2825
Hybrid precoding based on distributed partially-connected structure for multiuser massive MIMO
Published 2022-01-01“…For multiuser massive multiple-input multiple-output (MIMO) systems, to solve the problem of underutilized spatial resources caused by centralized partially-connected structure (PCS) and fixed-matching phase-control algorithm in conventional schemes, a low complexity phased zero-forcing (PZF) hybrid precoding scheme based on distributed PCS was proposed.The logical antenna subarrays with more than the number of radio frequency (RF) chains were designed, so that each RF chain could be connected to multiple distributed subarrays to provide higher spatial diversity gain.Further, by analyzing the influence of phase-control analog precoding on zero-forcing digital precoding, a phase-control analog precoding algorithm via successively maximizing users’ total subarray gains was proposed to maximize the upper bound of system spectral efficiency.Analysis and simulation results show that, compared with the conventional schemes, the proposed scheme can significantly improve the system spectral efficiency while slightly increases the computational complexity, and it is also insensitive to imperfect channel state information.…”
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2826
A Particle Swarm Optimization Algorithm for Deployment of Sensor Nodes in WSN Network
Published 2022-01-01“…Experiments show that when nodes are sent to different states, the number of nodes 150 remains the same, the communication radius is the same, the environment output is the same, and the number of bones in the network can be changed. …”
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2827
Performance analysis of zero-forcing coordinated MIMO transmission in interference channels
Published 2012-12-01“…The performance of the zero-forcing (ZF) coordinated transmit strategy in multiple-input multiple-output (MIMO) interference channels was investigated.With the goal to derive analytical expression of its performance metric such as the sum rate and the outage probability,the asymptotic behavior of the performance metric was examined with the MIMO dimension tending to infinity.Using the random ma ix theory,an asymptotic estimate of all the eigenvalues of the effective channel matrix in the ZF coordinated transmit strategy was first proposed.Based on that,two closed-form expressions of the sum rate were derived,from which the scaling law of the sum rate with the MIMO dimension was obtained.Furthermore,using the multivariate statistics about the probability density distribution of the minimum eigenvalue of a Wishart matrix,the analytical expression of the outage probability for the coordinated transmit scheme was achieved under two special cases.Simulation results show that the proposed tical expression of the performance metric is valid not only in the large-dimension regime,but also in the normal-dimension regime.…”
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2828
Damage Detection for Large-Scale Grid Structure Based on Virtual Axial Strain
Published 2020-01-01“…Finally, the frequency-domain decomposition method only using output response signal was selected for modal parameter estimation. …”
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2829
Amplitude and Frequency Control: Stability of Limit Cycles in Phase-Shift and Twin-T Oscillators
Published 2008-01-01“…We have found that amplitudes of the oscillator output voltage depend on the DC control voltage. By varying the total impedance of each oscillator oscillatory network, frequencies of oscillations are controlled using potentiometers. …”
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2830
Adaptive Asymptotic Tracking Control for a Class of Uncertain Switched Systems via Dynamic Surface Technique
Published 2019-01-01“…Under the presented adaptive controller, all the closed-loop signals are semiglobally bounded, and especially the output signal of the controlled system can follow the given reference signal asymptotically. …”
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2831
Priority Control Strategy of VSC-MTDC System for Integrating Wind Power
Published 2015-01-01“…The objective is that power is well distributed according to the output power of wind farm with the demand of AC system and satisfactory control performance of DC voltage is obtained.…”
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2832
Deep reinforcement learning-based resource joint optimization for millimeter-wave massive MIMO systems
Published 2024-10-01“…Aiming at the problem of low throughput and energy efficiency caused by limited wireless resources, huge power consumption, and mutual constraints between energy efficiency and system capacity in millimeter-wave large-scale multiple-input multiple-output systems, a resource co-optimization method based on deep reinforcement learning was proposed. …”
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2833
Deep Roots of Fiscal Behavior
Published 2014-05-01“…The empirical results show that discretionary fiscal policy is influenced by policy inertia, the level of public debt, and the output gap in both advanced and emerging-market economies. …”
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2834
Research of the Operation Characteristic of New Type CVT System Used in Heavy Duty Drilling Automation Platform
Published 2016-01-01“…In order to solve the problems of difficult arrangement,high production cost of drilling automation platform transmission system in the heavy duty condition,a new CVT system of drilling automation platform is introduced by analyzing the new type layout scheme of CVT structure,working principle and key performance indicators,and the influence of the differential mechanism transmission ratio of the new CVT system on the torque distribution ratio,output and input torque ratio of the new system and the influence of the reducing mechanism transmission ratio on the torque distribution ratio of the new system are calculated. …”
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2835
A Computable Measure of Algorithmic Probability by Finite Approximations with an Application to Integer Sequences
Published 2017-01-01“…We study formal properties of a Levin-inspired measure m calculated from the output distribution of small Turing machines. We introduce and justify finite approximations mk that have been used in some applications as an alternative to lossless compression algorithms for approximating algorithmic (Kolmogorov-Chaitin) complexity. …”
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2836
Bias Magnetic Field of Stack Giant Magnetostrictive Actuator: Design, Analysis, and Optimization
Published 2016-01-01“…Many novel applications using giant magnetostrictive actuators (GMA) require their actuators output bidirectional strokes to be large enough to drive the load. …”
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2837
Uplink assisted downlink channel estimation method of extra-large scale MIMO-OTFS system
Published 2023-12-01“…A low complexity downlink channel estimation method for high-speed mobile scenarios was proposed for the extra-large scale multiple-input multiple-output (MIMO) orthogonal time-frequency space (OTFS) system.Different from the existing studies, the proposed method considers the significant spatial non-stationary characteristics of extra-large scale MIMO-OTFS system.Based on the visible path region, an enhanced sparse orthogonal matching pursuit (OMP) algorithm with low complexity was proposed, uplink-assisted downlink channel estimation was achieved using the mapping relationship between the uplink and downlink channels in the frequency-division duplex (FDD) mode.Simulation results show that the proposed uplink-assisted downlink channel estimation method can accurately represent the non-stationary of the system, and achieve significant improvement in the channel estimation performance while reducing the computational complexity , and still perform well in high-mobility IoT scenarios.…”
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2838
DESIGN AND DYNAMIC ANALYSIS OF A NEW CHAOTIC VIBRATING SCREEN
Published 2022-01-01“…The simulation shows that the Poincre map of the chaotic vibrating screen is scattered and the maximum Lyapunov exponent is positive. The motion output of the new chaotic vibrating screen is chaos Vibration, the research results of the thesis can provide a theoretical basis for the design and application of chaotic vibrating screens.…”
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2839
A convolutional neural network model and algorithm driven prototype for sustainable tilling and fertilizer optimization
Published 2025-01-01“…This machine learning output, along with soil sensor and external forecast data, flows into a 10-parameter algorithm that determines optimal tilling and fertilizer levels. …”
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2840
Kinematics and Dynamics Analysis of Double Rocker Prosthetic Knee Joint
Published 2021-03-01“…The equilibrium equations between output damping force and driving torque were obtained through the dynamic static analysis method. …”
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