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This paper designed a 1-Mb HfOx-based embedded Resistive Random Access Memory (RRAM) device with a one-transistor-one-resistor (1T1R) structure, and systematically investigated its working temperature range. It noted that this embedded RRAM macro has a 1.6X working temperature range than previous design for some extreme environment. Using the peripheral-assisted technique, it can enable the error...
A quarter-rate 51Gb/s PAM4 CDR with decoded dual-NRZ outputs is presented for 400GbE optical transceivers. A baud-rate data-only sampling PD with zero-crossing integrating front-end is proposed to minimize the clock generation and distribution overhead, as well as improving the noise resilience under PAM4 low-SNR inputs. Measurement results show the CDR features 1.08ps RMS clock jitter, 3.4×10−9 PAM4...
We report a non-electric focal plane array with metamaterials integrated into bi-materials cantilever pixels for real-time terahertz imaging. The fabricated device experimentally captured THz images of different objects with fast response and high sensitivity.
In this paper, we propose a straightforward method to select the parameters of the PI controllers in Field Oriented Control (FOC) scheme for Permanent Magnet Synchronous Motor (PMSM) based on geometric model reduction and structured H∞-synthesis. The main contribution of this paper is that, by recognizing the essential linear system structure of PMSM model and using mature robust control method, the...
In traditional K-means, the target function only considered the intra-cluster similarities and did not take into account the differences among categories. In order to take into account both the firmness in the same cluster and the dispersion between different clusters, a new objective function based on ideal point is given, and the K-means algorithm based on quasi ideal point method is provided. A...
Software Defined Networks (SDN) have been utilized in applications of the Internet of Things (IoT), termed as software-defined IoT network, because of the popularity and capability of mobile devices being used for networking in relatively large areas. In a software-defined IoT system, the sensing data are asynchronously harvested by the mobile sensing nodes, and are also asynchronously uploaded to...
Recent advances in the Internet-of-Things has given rise to the possibility of connecting different kinds of devices to the internet. With low computing resources constraining most IoT devices and their networks, managing the capabilities and services of the various constrained devices over the internet has been an issue for IoT implementations. Existing approaches to this problem lack end-to-end...
Powered knee prostheses, compared to traditional energetically-passive knee prostheses, greatly enhance the mobility of transfemoral amputees. However, powered prostheses have a large number of control parameters that must be adjusted for individual amputee users, which presents a great challenge for clinical use. To address this challenge, we proposed and compared 2 automatic tuning strategies (i...
Information sharing is critical to multi-agent team for cooperative decision making in dynamic and partially observable environments. Other than building a full information coverage, if agents in a team can be self-directed to valuate a potential receiver and where to communicate, the coordination efficiency will be greatly enhanced. Although intensive studies of information valuation approaches have...
Based on complex network theory, this paper puts forward a network construction method based on the field visibility of visibility principle, analyzes the inherent properties of electric field, and excavates the important information contained in electric field. By constructing the complex network model through uniform electric field of plate electrodes and slightly non-uniform electric field of high-pressure...
In this paper, we investigate the consensus problem for the second-order multi-agent systems with communication time-delay. We firstly introduce the consensus protocol based on neighbor directed network. Then by using Lyapunov functions, we prove the stability of the proposed control protocols, and derive a sufficient condition for the consensus convergence of the multi-agent system. Finally, simulation...
Ceramic thin film thermocouples as a kind of promising candidate thermal sensor have been used to replace noble-metal thin film thermocouples to measure the hot section of turbine energies. ITO (In2O:SnO2=90wt.%:10wt.%) and In2O3 thin films with spinning Al2O3 coating layer were investigated systematically and ITO/In2O3 thin film thermocouples were evaluated at 1230°C for a long time. Uncoated ITO...
Reservoir computing (RC) framework is a type of recurrent neural network (RNN) with the ability of powerful computing performance for input sequences. Unlike traditional RNNs which train the connection weights by complex procedures, RC only uses the linear regression method to train its output weights, which is also much easier to implement. However, academic research of optimization of its structure...
We present a learning-based mapless motion planner by taking the sparse 10-dimensional range findings and the target position with respect to the mobile robot coordinate frame as input and the continuous steering commands as output. Traditional motion planners for mobile ground robots with a laser range sensor mostly depend on the obstacle map of the navigation environment where both the highly precise...
Vulnerabilities to presentation attacks can undermine confidence in automatic speaker verification (ASV) technology. While efforts to develop countermeasures, known as presentation attack detection (PAD) systems, are now under way, the majority of past work has been performed with high-quality speech data. Many practical ASV applications are narrowband and encompass various coding and other channel...
An analytical description of energy level alignment at metal-organic interface based on a detailed electrostatic model and exponential density of states is presented here. The calculated alignment between the Fermi energy of electrode and the organic transport energy shows good quantitative agreement with the proposed numerical electrostatic model and experimental data, indicating that the analytical...
A physical model of revealing the charge carrier transport characteristics based on first-principles calculations has been proposed for oxide-based RRAM. Based on the proposed model, we have investigated the influence of different kinds of dopants on transport characteristics in HfO2-based RRAM. The present method will be contributed to clearly understand the dopant effect, and then tune the RRAM...
This paper presents an improved model predictive control (MPC) for permanent magnet synchronous motor (PMSM) drives. The proposed MPC is different from the conventional MPC in applying two voltage vectors in every control period. The duty ratio is firstly calculated using a simple but effective method with the consideration of the one-step delay. The cost function is then modified by incorporating...
In order to solve the problem of feature selection and the low classification accuracy in high-dimensional data, a feature selection algorithm ReliefF-IAGA which is based on ReliefF and IAGA(improved adaptive genetic algorithm) is proposed in this paper. The algorithm obtains the feature importance score using ReliefF feature selection algorithm and eliminates the irrelevant features. Then, the optimal...
Tail bits in the RESET process influence the distribution of resistive parameters, and will dramatically decrease the uniformity in high electric stimuli region. In this study, such phenomena can be explained as non-uniform distribution of defects in the insulating layer and high defects density in the bottleneck region of conductive filament (CF). Then departing from defects' distribution function,...
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