نتایج جستجو برای: dc local network
تعداد نتایج: 1203097 فیلتر نتایج به سال:
Interest in the identities, properties, functions, and origins of local APC in CNS tissues is growing. We recently reported that dendritic cells (DC) distinct from microglia were present in quiescent retina and rapidly responded to injured neurons. In this study, the disease-promoting and regulatory contributions of these APC in experimental autoimmune uveoretinitis (EAU) were examined. Local d...
The approach to the design of direct current (DC) motor varies considerably using advanced methods such as artificial intelligence (AI). However, accuracy issues cannot be totally addressed using conventional methods. This paper presents the study on nonlinear autoregressive moving average with exogenous input (NARMAX) model using multilayer perceptron (MLP) neural network for DC motor modeling...
امروزه توجه به افزایش گازهای گلخانه ای و آلودگی های ناشی ازسوخت های فسیلی منابع پاک تولید انرژی توجه به تولید انرژی پاک بیش از پیش شده است. پیل سوختی پلیمری یکی از انواع منابع تولید پراکنده می باشد که به دلیل کارایی قابل توجه، جایگاه ویژه ای پیدا کرده است. عموما از پیل های سوختی برای کاربردهای اتصال به شبکه و خودروی الکتریکی استفاده می شود. به منظور افزایش سطح ولتاژ خروجی پیل سوختی از یک مبدل d...
The maximum power point tracking (MPPT) system controls the voltage and the current output of the PV system to deliver maximum power to the load. Present work deals a comparative analysis of incremental conductance, and neural network based MPPT techniques. Parameters values were extracted using Newton Raphson method from characteristics of Shell SP75 module. The simulations have been carried o...
TThe uncertainty estimation and compensation are challenging problems for the robust control of robot manipulators which are complex systems. This paper presents a novel decentralized model-free robust controller for electrically driven robot manipulators. As a novelty, the proposed controller employs a simple Gaussian Radial-Basis-Function Network as an uncertainty estimator. The proposed netw...
Among structured Peer-to-Peer systems, Chord has a general popularity due to its salient features like simplicity, high scalability, small path length with respect to network size, and flexibility on node join and departure. However, Chord doesn’t take into account the topology of underlying physical network when a new node is being added to the system, thus resulting in high routing late...
Electronic circuits require a wide variety of voltage levels to operate correctly. A DC/DC converter (DC/DC) is an electronic circuit used either to transform one voltage level to a different level; or to provide an isolation barrier for a voltage bus. DC/DCs are typically used in power distribution systems to provide a local voltage conversion, point of load voltage regulation or power bus iso...
In this letter, we consider the problem of regulating voltage an islanded Direct Current (DC) network subject to (i) unknown ZIP-loads, i.e., nonlinear loads with parallel combination constant impedance (Z), current (I) and power (P) components, (ii) time-varying disturbances. Using port-Hamiltonian framework, two decentralized passivity-based control schemes are designed. It is shown that, usi...
The paper analyzes the impact of the component losses on the efficiency of the novel DC/DC converter. The converter is a combination of the quazi-Z-source (qZS) network and dual active bridge (DAB). In the analysis the mathematical loss models of the proposed DC/DC converter are derived and efficiency is estimated. Eventually the efficiency is verified experimentally.
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