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Given some (but not all) monthly totals of people with measles (or counts of product-units sold, or counts of retweets), how can we recover the weekly counts? Requiring smoothness between successive weeks is reasonable - but can we do better, if we have some domain knowledge? For example, we know that measles (flu, count-of-retweets, etc) follow a specific cascade model, like the so-called 'SIS'....
How to design an optimal mixed H2/H∞ robust FID controller for a complex control system is of great practical importance, but it is still an open issue. From the perspective of evolutionary algorithm, this paper formulates this issue firstly as a typical constrained optimization problem by minimizing a weighted objective function consisting of the robust stability performance, disturbance attenuation...
Mimicking the collaborative behavior of biological swarms, such as bird flocks and ant colonies, Swarm Intelligence algorithms provide efficient solutions for various optimization problems. On the other hand, a computational model of the human brain, spiking neural networks, has been showing great promise in recognition, inference, and learning, due to recent emergence of neuromorphic hardware for...
This paper provides details on the new Broadwell server product family designed on 14nm Intel process. This was the first Xeon® server product on this process node. Low power, density optimized product, Broadwell-DE, has upto 8 dual-threaded 64b Broadwell cores [1], 12MB L3 cache, 2 10GT/s Ethernet KR lanes, 2 DDR4–2400MHz memory channels and 24 8GT/s PCIe lanes. Broadwell-SP, a high performance server...
In this paper, a new LDMOS on silicon-on-insulator (SOI) with homo-type fixed interface charges in the bottom of field oxide layer is proposed. The surface electric field can be improved by adding the fixed interface charges and optimizing the doping profile, which can effectively modulate electric field to obtain the optimization trade-off between the breakdown voltage and on-resistance. The numerical...
In these years, the wind power integration capacity has increased a lot, and the issue of wind curtailment has become more serious for lack of adequate flexible energy sources. To find out whether the nuclear power plant (NPP) in the present power system can solve this issue, this paper proposes a joint operational optimization model that includes the NPP, wind power plant, thermal units and pumped-storage...
Recent advances and new trends in high voltage SiC based MOSFETs are analyzed. The main focus is done on design optimization strategies for reducing the on-state resistance. Gate oxide treatments for improving the interface quality resulting in a lower channel resistance are reviewed as well as solutions for lowering the JFET and bulk resistance components. The 3rd quadrant operation, short-circuit...
In this paper, we investigate the quality of information (QoI) maximization problem by jointly optimizing the sampling rate, packet-dropped rate, and transmit power in wireless sensor networks (WSNs). We consider a complicated but practical scenario, where various tasks with heterogeneous traffic are supported by one WSN simultaneously. Accordingly, the QoI maximization problem is formulated as a...
We have experimentally demonstrated that the linearity of a silicon Mach-Zehnder modulator (MZM) could be improved by optimizing its phase-shifter length (PSL). Through the optimization of the PSL, the third order intermodulation distortion of the silicon MZM could be 16.7 dB lower than that of a commercial LiNbO3 MZM. The spurious free dynamic range of the link with the silicon MZM could be 4.1 dB...
The paper deals with passification for singular Markov jump systems (SMJSs) with stochastic disturbance and actuator saturation. By employing the polytopic model, a stabilizing controller is constructed such that the closed-loop SMJSs are stochastically admissible and passive (SAP). Some criteria for stabilizing controller design are derived by using an optimization problem in LMIs. Finally, an example...
This scientific paper contains the analysis of common MPPT algorithms and usual data processing algorithms for the purpose of the power optimization of mobile solar generators. Furthermore according to the analysis results, an optimized MPPT algorithm, the Global High-Dynamic MPPT algorithm, is designed. The design process approaches, and superordinate algorithm theoretical principles are described.
This work presents a new methodology for the computation of an auxiliary signal that allows to detect and, through a simple filter, to isolate faults in a linear time invariant system. The auxiliary signal is obtained by solving a quadratically constrained quadratic program (QCQP) off-line and then the filter is computed simply by solving a linear combination. The proposed methodology is applied to...
We present a silicon nanowire-based field-effect transistor biosensor with Schottky barriers for highly specific and sensitive human α-thrombin detection. The active sensor area is decorated with thrombin-binding aptamers as receptor molecules. Each sensor chip is integrated into a microfluidic device for flow-through measurements. Instantaneous detection is provided by real-time monitoring of FET...
An portfolio optimization problem with fuzzy random variables is discussed. Risk measures for fuzzy random variables are introduced by perception-based approach. Randomness is estimated stochastically, and fuzziness are evaluated by the mean values with evaluation weights and λ-mean functions. Using coherent risk measures, we discuss a portfolio optimization problem under randomness and fuzziness...
Thermal wind sensor has been used to measure wind speed and direction in high temperature due to its principle. In this paper, a novel structure is proposed. It consists of a silicon sensing substrate and a ceramic chip for packaging, in which the sensing chip with through silicon vias (TSV) is Cu-Sn eutectic bonded to the ceramic. This paper focuses on the thermal-mechanical reliability of the novel...
We present a method for joint robust design of linear source and relay filters in a MIMO full-duplex link that supports the transmission of several data streams. The system model accounts for self-interference in the relay, limited dynamic range at the transmit and receive sides of the nodes as well as channel uncertainty. The design criterion is to minimize the worst-case mean square error at the...
This paper considers a multiuser system with one full-duplex (FD) base station (BS) serving a set of half duplex (HD) mobile users. Due to the self-interference and co-channel interference from the uplink users to the downlink users, the transmissions of the BS and uplink users have to jointly designed. In this paper, we consider such a joint design problem for maximizing the max-min-fairness (MMF)...
Impact damage may compromise the structural integrity and resistance. When an impact occurs, it is important to check if a structural damage was originated at the impact location. On thin structures, impacts generate guided stress waves (Lamb waves) which can be analyzed to infer the actual impact position. A novel strategy to determine the Lamb wave direction of arrival, generated by an impact occurring...
In this paper, a generalized convex network optimization problem with local domains and constraints is formulated and solved by using distributed multi-agent dynamics. Within the framework of the present network optimization, it is assumed that the local system states and constraints are available to an individual agent and each agent may only share information with its neighbors. A distributed PI-based...
In the multi-bus islanded microgrids, the power quality requirements for different areas and buses can be different. This paper proposes a hierarchical control to realize optimal unbalance compensation for satisfying the power quality requirements in different areas. Primary and secondary controllers are applied to realize unbalance compensation for the critical bus(CB). In the secondary control,...
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