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The rapid proliferation of devices of the Internet of Things requires a vast network of heterogeneous devices to maintain the ability to communicate rapidly and seamlessly. The transition to delay sensitive Tactile Internet applications would demand on a new information and communications infrastructure. In our previous work, we have proposed a fast Location basEd Source Switching (LESS) mechanism...
A low-latency and reliable message switching network is critical for constructing high-speed datacenter networks. In this paper, we present the design, implementation, and evaluation of a novel Location basEd Source Switching (LESS) for datacenter networks. LESS enables lightweight source switching through a location-based addressing scheme. Each switch and host can independently derive a source route...
Graphene is coupled with silicon quantum dots (Si QDs) on the top of bulk Si to form a hybrid photodetector. SiQDs cause the built-in potential of the graphene/Si Schottky junction to increase. Si QDs also significantly reduce the optical reflection of the photodetector. Both of the electrical and optical contributions of SiQDs enable the superior performance of the photodetector.
This paper presents an overview of three works about graphene-based resistive random access memory (RRAM). The fabrication, device performance and working mechanism of graphene-inserted electrode RRAM, RRAM based on laser-scribed reduced graphene and gate-controlled graphene-electrode RRAM are introduced. This work may inspire new design of high-performance RRAM based on two-dimensional material and...
With the rapid development of renewable energy systems and Microgrid, more and more DC grids of different voltage level need to be connected by the high voltage and high power DC-DC converter. The traditional topology of high voltage and high power DC-DC converter was Phase Shifted Full Bridge cascaded Modules (PSFBM). Due to the inefficiency and difficulty on manufacturing high frequency transformer...
This paper investigates the technique of network access switch between host-gigabit-Ethernet-switch and backup-gigabit-Ethernet-switch, and proposes an automatic, security, stable and high reliability switching method adopting high-frequency relays. The new method uses the following strategy. If the host-gigabit-Ethernet-switch works properly, the automatic network switcher is powered off, the automatic...
Impedance is very important for power electronic systems because of the close relationship between impedance and system stability. The power converters are typical nonlinear dynamic systems in frequency domain. With a sinusoidal input voltage perturbation excitation, the input current contains not only the input perturbation frequency, but also multiple other frequency components. Therefore, the input...
The leaderless synchronization of multiple agents modeled by nonlinear Euler-Lagrange equation is investigated under limited directed communication. An adaptive cooperative control law is proposed to synchronize the whole group with parametric uncertainties. It is proved that synchronization can be achieved if and only if the communication graph has a directed spanning tree. Lyapunov theory and eigenvalue-based...
This paper has provided a practical design architecture of three-phase grid-connected photovoltaic power generation inverter, converting direct current from photovoltaic array to alternating current whose phase and amplitude are the same as the grid. Furthermore, the schemes are described separately from the hardware design, software design and protect-function design. Additionally, based on traditional...
Product platform has been proven a successful strategy in business practice, and platform architecture is crucial to platforming strategy. In this paper, some issues on platform architecture are firstly discussed and argued. Then an analysis tool termed as interfacing analysis matrix (IAM) is presented for the analysis of base platform architecture, with improvement of the existing analysis tools...
This paper explores the limitations of neutral-point voltage balancing problem for different loading conditions and index modulations of neutral-point-clamped three-level inverters. However, the modulation, which based on the virtual space vector concept, that only requires the addition of the output three-phase currents equals zero, guaranteed the balancing of the neutral-point potential for any...
In this paper, we investigate a switching scheme involving antenna selection and transmit beamforming modes for a multiple input multiple output (MIMO) system operating over a varying Rician channel. It is shown that that beamforming outperforms antenna selection when line of sight (LOS) component dominates the channel. Also transmit beamforming is superior over antenna selection at high values of...
As the development of in-car electronics and automatic parts, the capacity of current 14 V voltage system no longer meets the demand of onboard devices. An upgrade is imminent. In order to be backward compatible with the existing system (14 V) and not to introduce extensive modification, a dual 14/42 V system is being developed as a compromising solution. Based on this new system, this article proposes...
This paper designs a isolated resonance cuk circuit based on the theoretical analysis of cuk circuit, and do experiment of this circuit, also research the circuit's working principle and transmission efficiency under different load; Combining with the PV arrays working characteristics, this circuit was applied in photovoltaic (PV) generating control system to realize the maximum power point tracking...
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