The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A nonlinear fault-tolerant control and active vibration suppression design approach is presented in this paper. In the presence of flexible satellite with actuator faults, orbit control force and environment disturbance, a nonlinear adaptive fault-tolerant control approach is designed for the flexible satellite attitude control system. The control law is based on H-infinite adaptive method and designed...
Artificial upwelling is supposed to be a general technique to enhance the marine primary productivity and fishery resources by means of pumping the nutrient-rich deep ocean water (DOW) to the euphotic layer. The wave energy is the most conspicuous form of ocean energy, the extraction of energy from the waves can be a viable economic solution to the power requirements of artificial upwelling. To extract...
Correctly discovering causal relations from healthcare information can help people to understand disease mechanisms and discover disease causes. In some cases, the healthcare data do not follow a multivariate Gaussian distribution. We design a new causal structure learning algorithm. The algorithm can effectively combines ideas from local learning with simultaneous equations models techniques. In...
Continuous Data Protection (CDP) has become increasingly important as digitization continues. This paper presents a new architecture and an implementation of CDP in Linux kernel. The new architecture takes advantages of both traditional snapshot technology and recent Timely Recovery to Any Point-in-time (TRAP) architecture [CHECK END OF SENTENCE]. The idea is to periodically insert snapshots within...
Memory Coalescing and on-chip shared Cache are two effective techniques to alleviate the memory bottleneck in modern GPGPUs. These two techniques are very useful on applications with regular memory accesses. However, they become ineffective on concurrent threads with large numbers of uncoordinated accesses and the potential performance benefit could be significantly degraded. This paper proposes a...
In this paper, we investigate the transmission completion time minimization problem in a two-user additive white Gaussian noise (AWGN) broadcast channel, where the transmitter is able to harvest energy from the nature. The harvested energy is modeled to arrive at the transmitters randomly. In this paper, under a deterministic system setting, we assume that the energy harvesting times and harvested...
Accurate peak power measurement requires detailed switching and delay information for each signal over the entire simulation. Performing a full signal dump and power calculation for a long simulation run usually spends a large amount of time and disk space. In this paper, we propose an Essential-signal-based methodology which only performs power analysis over a small subset of the original simulation...
Non-Manhattan structures, such as the X and Y architectures, propose different flavors in reducing the use of physical resources, such as total wirelength and number of vias. However, in order to take full advantage of these structures, we need to develop new tools for these architectures, especially for early stages in physical design. In this paper, we propose the packing algorithm with isosceles...
In this paper, another proof of explicit formulas of the cyclotomic numbers with order e = l and e = 2l (for odd prime l) over finite field with q elements in the case of “self-conjugation” is obtained. Then, the autocorrelation distributions of the corresponding e-ray Sidel'nikov sequences of period q - 1 are derived.
Aspect mining is a technique that decouples the crosscutting concerns from existing software systems. The goal of aspect mining is to refactor the existing software systems with Aspect Oriented Programming technology. Inspired by the link analysis of information retrieval technology, this paper describes a two-state model to approximate how crosscutting concerns can be discovered in the concern graphs...
We investigate the problem of minimizing the overall transmission delay of packets in a multi-access wireless communication system, where the transmitters have average power constraints. We use a multi-dimensional Markov chain to model the medium access control (MAC) layer behavior. The state of the Markov chain represents current queue lengths. Our goal is to minimize the average packet delay through...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.