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.
In the view point of preventive medicine, the dangerous factors related to the life style have a close relationship to cancers. Some dangerous factors can be effectively collected by investigating the human health status, the physical examination, family's disease history, etc. The literature reported that the oral cancer is closely related the habits, such as smoking, drinking beer and chewing betel...
This paper proposes a method to detect the macula in the retinal fundus image automatically. The method makes use of the optic disc height obtained from the ARGALI to define the region of interest. Regions of dark spots are then detected by finding the coordinates with the lowest pixel intensity and determining the average pixel neighbourhood intensities. These regions are ranked to determine the...
Resource allocation is an important issue in cognitive radio systems. It can be done by carrying out negotiation among secondary users. However, significant overhead may be incurred by the negotiation since the negotiation needs to be done frequently due to the rapid change of primary users' activity. In this paper, a channel selection scheme without negotiation is considered for multi-user and multi-channel...
With the rapid development of electronics and information industries, waste monitors increases stridently, so it's urgent to solve the problem of sorting and recycling these waste monitors. This paper researches the fuzzy clustering method which is suitable to recycling monitors, expounds the procedures in details, and applies the method to solve reality instance. Through the case analyses, this fuzzy...
Real-world social networks (e.g., blogosphere) often evolve over time and thus poses challenges on conventional social network analysis techniques which model the underlying networks as static graphs. In this paper, we are interested in detecting dynamic communities and their trend of evolution in a social network by examining the structural and dynamic patterns of interactions. In doing so, we propose...
Mesocarbon microbeads (MCMB) were prepared by heating a medium coal tar pitch at 420degC for 2 hours, with the P-toluene sulphonic acid (PTSA) and the phenyl silicone oil as the catalyst and the reaction medium respectively. After the oxidative stabilization of MCMB, the oxygen content and the number of functional groups are increased, while the micro-crystal structures become worse. However, after...
This paper presents the derivation of a simple, low order system frequency response (SFR) and system voltage response (SVR) model, that can be used for estimating the paper establishes the range of responses that describe the behavior of a 33 kV islanded distribution network of certain structure and composition by grouping similar frequency and voltage responses of the network.
The paper proposes and analyzes a new adaptive load shedding method for intentional islanding for distribution networks. The proposed method uses a combination load shedding method to enhance both frequency and voltage stability following a disturbance. The magnitude of the disturbance is determined using the swing equation, obtaining this way a more efficient system operation during emergency conditions...
This paper presents a domestic hot water heater model to be used in a demand side management program. Water heater loads are extracted from household load data, and then used do develop household water usage data. The model incorporates both the thermal losses and the water used to determine the temperature of the water in the tank. The model will be used in the future to develop intelligent control...
In recent years, protein folding kinetics studies performed the hydrophobic core residues play a key role not only in stabilizing the native state, but also in driving the folding reaction itself. In this work, the protein structure is modeled as an undirected network with the amino acids the vertexes and the contacts between them the edges. We find that the core residues have mainly high degree and...
This paper describes a radio scanning strategy to collect the maximal number of interesting contents from multiple radio channels. Results show that knowledge about the broadcast behavior is useful to improve the collecting efficiency of the proposed approach.
The effect of extraction barrier width on a resonant-phonon terahertz quantum cascade laser is studied using the Monte Carlo method. The width of extraction barrier is varied from 48 to 33 Aring. The calculated threshold current density increases monotonously with decreasing extraction barrier width, while the peak gain shows nontrivial behavior. The simulation results suggest an optimum extraction...
Widely applied in many domains, data stream processing has attracted more and more attention in database and sensor network communities. In this demo, we present our system PEDS-VM, a real-time surveillance system for managing pattern variation over evolving medical streams. PEDS-VM utilizes an effective strategy and a state-based window framework to extract the evolving patterns. After extraction,...
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.