session initiation protocol (sip) is the main signaling protocol of next generation networks (ngn). sip based applications are usually deployed over the internet, for which their text-based nature and internal stateful operation make them vulnerable to different types of attacks. the real‑time functionality of sip based applications make their related security systems more complex. on the other...

In this paper we investigate the performance of three well of the simulation study was to measure the linear system estimation known system identification methods based on an FIR (finite error as a function of N, the signal duration, M, the impulse impulse response) model of the system. The methods will be response duration, s/n the signal-to-noise ratio of the system, and referred to in this p...

In certain dynamical systems, the addition of noise can assist the detection of a signal and not degrade it as normally expected. This is possible via a phenomenon termed stochastic resonance (SR) . The response of a nonlinear system to a sub-threshold periodic input signal is optimal for some non-zero value of noise intensity. Using the signal-to-noise ratio (SNR) we can characterise SR — as t...

background: people who use home blood glucose monitors may use their mobile phones in the close vicinity of medical devices. this study is aimed at investigating the effect of the signal strength of 900 mhz gsm mobile phones on the accuracy of home blood glucose monitors. methods: sixty non-diabetic volunteer individuals aged 21 - 28 years participated in this study. blood samples were analyzed...

PREOCCUPATION with the problems of communication across language barriers has resulted in our time in the perfection, progressive application, or investigation of three new techniques. They are (1) simultaneous translation, as practiced in the United Nations General Assembly, and more and more extensively also in the most varied international congresses of scientists and other groups of special...

In this manuscript, a new method is proposed to provide a perfect tracking of the supercavitation system based on a new two-state model. The tracking of the pitch rate and angle of attack for fin and cavitator input is of the aim. The pitch rate of the supercavitation with respect to fin angle is found as a non-minimum phase behavior. This effect reduces the speed of command pitch rate. Control...

Abstract. Controlled experiments were performed to investigate the acoustic signal response of Swiss plate geophone (SPG) system impacted by bedload particles varying in size, impact angle, and transport mode. The impacts moving saltation, rolling, sliding determined analyzing experimental videos corresponding vibration signals. finite element method (FEM) was utilized construct a numerical mod...

Timely reporting, effective analyses and rapid distribution of surveillance data can assist in detecting the aberration of disease occurrence and further facilitate a timely response. In China, a new nationwide web-based automated system for outbreak detection and rapid response was developed in 2008. The China Infectious Disease Automated-alert and Response System (CIDARS) was developed by the...

Highly sensitive smart sensors for early fire detection with remote warning capabilities are urgently required to improve the safety of combustible materials in diverse applications. The highly-sensitive alarm can detect situation within a short time quickly when disaster is about occur, which conducive achieve tuned. Herein, novel designed by using flame-retardant cellulose paper loaded graphe...

Background: An effective polymer gel dosimeter can be fabricated by varying the composition of its chemical components. Materials and Methods: The MAGAT gel dosimeter formulations that used different compositions of Methacrylic acid (MAA) and gelatin were extensively investigated in the present study according to the R2–dose response and R2–dose sensitivity. The irradiation of M...