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.
This paper constructs a new EL Gamal-type public key cryptosystem based on the irreducibility of characteristic polynomial of ergodic matrices over, whose security is equivalent to the difficulty of polynomial discrete logarithm problem over binary finite field. Since plaintext is represented by matrix and its message expansion is almost 1, the novel scheme can encrypt effectively more information...
For data with high-dimensional and mixed feature values, traditional similarity measurement becomes no longer applicable. In this paper, a new similarity measurement is proposed by designing a high dimension FCM clustering algorithm. Firstly, an initialization of ordinal-numerical mappings is given; secondly, new ordinal-numerical mappings are learned from the iterative high dimension FCM clustering...
Because of the common phenomenon of coupled time-varying delay in the complex dynamical networks, the problem of impulsive synchronization in output coupled complex dynamical networks is investigated in this paper. In order to achieve synchronization of each node of a time-varying delayed complex network, we design an impulsive controller using output signals. Sufficient conditions are derived on...
Although real time three‐dimensional transthoracic echocardiography (RD‐3DTTE) has been used in children with complex congenital heart diseases, the benefit of RD‐3DTTE as a vision of the pulmonary veins still requires further evaluation. We present here, a 3‐year‐old girl with a stenosis of the left upper pulmonary vein (LUPV). Excellent images were obtained rapidly by RD‐3DTTE that successfully...
Strong cryptographic security, short encryption time, and robustness against noise are three goals of cryptosystem. However, most existing chaotic cryptosystems only focus on the research of enhancing cryptographic security and shortening encryption time. To overcome drawbacks and weaknesses of the existing algorithms, the paper analyzes the pseudo-chaotic characteristics of irrational numbers and...
With the primary gas gun, the dynamic properties of copper have been studied under high pressure. Hugoniot curve of metal materials have been obtained, which can be used to study the high-pressure equation of state. The parameters of the state equation has been obtained. The error of the experimental analysis results show that the experimental methods and results are credible.
A fractal model for the subcooled pool boiling heat transfer is proposed. The analytical expressions for the subcooled pool boiling heat transfer are derived based on the fractal distribution of nucleation sites on boiling surfaces. The proposed fractal model for the subcooled nucleate pool boiling heat transfer is found to be a function of wall superheat, liquid subcooling, fractal dimension, the...
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.