ELECTRONIC INDUSTRIES
Year:2016 | Volume:6 | Issue:4|Papers Count:8

The human face of evil and criminal incidents in life is unavoidable, and mankind is always in need of understanding their environment. The use of systematic methods to identify, detect and prevent crime in society to reach a resolution mass analysis is increasing. Due to the expansion and development of information systems in organizations, In this paper we use data mining techniques to analyze crime data set in databases has been. Using tools and data mining algorithms to the complex nature of the crime, Crime and the subtle relationship s between data models and identify crime patterns, to detect and prevent. Classification algorithms optimized model to predict future characteristic s of the crimes committed and clustering algorithms to identify the type of crime the data sets were collected.

In this paper, we have simulated and investigated the conductance and electron transport of telescoping double-walled carbon nanotubes (TDWCNTs) with and without vacancy defect, using tight-binding model combined with nonequilibrium Green's function (NEGF) approach. The simulation results show that the relative motion of the walls along the tube axis causes periodic valleys and peaks in electrical conductance. Each of these valleys and peaks can be considered as low (OFF) and high (ON) conductance respectively. As a result, TDWCNT device can be used as a nanoswitch in nanoelectromechanical systems (NEMS). In addition, our results sho w that introduction of a vacancy defect decreases the conductance by 50%. Reduction of the conductance depends on the location and density of the defect. If the density of the defect is low in the structure, the conductance of the device is not much affected. Therefore, the defective device can be still used as a nanoswitch because of nearly constant ON/OFF conductance ratio. If the density of the defect is high, the conductance is significantly affected and the performance ofthe device as a nanoswitch is degraded.

In this paper, Fabrication of Biological material detector, which detects using film bulk acoustic resonator (FBAR) technique, based on MEMS technology is introduced. Fabricated sensor consists of a thin oxide silicone membrane on which a piezoelectric layer is sandwiched between two gold electrodes. To detect specific Biological material, antibodies which are sensitive to goal Biological material were immobilized on the backside of FBAR sensor. Biological material detection is done through the mass sensing. When the specific Biological material is exposed to the sensor, it binds to the antibody on the sensor, causing a shift in the resonant frequency of the FBAR sensor. Some integrated circuit processes such as E-beam evaporation of Au, RF magnetron Sputtering of ZnO, wet etching process, and photolithography process are used to fabricate this detector. For fabrication of thin membrane, bulk micromachining method is used. In addition, to test the fabricated sensor, a new set up is designed and fabricated. With coating of anti-TNT layer on the backside of the fabricated sensor, it gets sensitive to TNT.

In this paper, a K-band Common-Gate Gilbert-Cell mixer via a 0.18 urn CMOS technology was designed, using the combination of the n-Network and PDC techniques simultaneously, resulting in the improvement of gain, bandwidth, noise figure and linearity. Also, a new method for implementing the n-Network, using the parasitic capacitances between RF and LO stage nodes, is proposed which improves the mixer performance and makes the mixer design possible at high frequencies. The p-Network enhances the gain and bandwidth by generating complex poles in system frequency response without the need for extra power consumption. The suitable location of these poles, which gives rise to high gain and high bandwidth, is discussed and determined by MATLAB simulation. Also, it is shown that these techniques results in a bias-independent mixer circuit at an acceptable range that is a good advantage for circuits. Results of simulation illustrate 3.36dB improvement in power conversion gain and 2dB reduction in noise figure at the same power consumption with LO power of -1dBm in comparison with the case when PDC technique is used only. Compared to conventional mixer, it improves the IIP3 by 6dB. Also, the power consumption of the mixer together with the designed bias circuit is 9.68 mW at 1.8V.

Recently, the laws of quantum mechanics have amazed classical cryptography and aided researchers to provide secure communications in presence of adversaries. The need for security protocols and systems has been essential due to the widespread use of internet shopping and electronic banking. In this paper we present a new electronic payment protocol for off-line transactions which is similar to the bank cheques and guarantees the security of payment in different real applications relying on quantum physics' fundamentals. In this paper we describe the proposed protocol in detail through a real example and analyze its security.

In recent years, reversible circuits have drawn high attention due to their usability in power consumption optimization of low power CMOS circuits in addition to quantum computing. On the other hand, fault and error tolerance has been one of the vital characteristics of new circuits because of the increasing susceptibility of these circuits against environmental effects. As adder circuits are the main parts of processing and arithmetic circuits, in this paper, we first propose a new gate to design a parity-preserving full adder, and then, introduce two new fault-tolerant reversible BCD adders. Based on performed comparisons between the proposed structures and the existing gates and adders, the new full adder and BCD adders are the best or favorable designs according to the number of required gates, hardware complexity, delay and quantum cost.

Today, one of the most important and expensive industries in the world is space industrument. Manufacturing the satellite is a part of this industry. Because of this reason, analyzing the behavior of satellites is too important. Not being accessible in the space causes to make the simulators of satellites. One of the most important subsystems in the satellite is the power supply subsystem. In this paper, it is tried to design the different part of the power supply subsystem of satellite simulators such as photovoltaic system, battery, electrical load. As it is difficult to analyze the behavior of satellites this simulator would be usefull in space industries. This simulator wouldn't have the problem such as preparing the test condition, the cost of providing the different size of batteries and also age reducing batteries by using them. It is available to be expanded to different kind of battery. The battery which has been simulated in this paper is MP 176065 Integration 6.8 Ah Li-ion battery that is made by Saft Company and the photovoltaic panel is a 200 watt panel made by KYOCERA. This simulator can simulate the max power point tracker and gives the max power to the system.

Designing stealth technologies for modern vessels requires methods for infrared signature reduction. First these signatures should be modeled. In this paper a method to calculate the infrared signatures of a naval vessel is presented. The thermal analysis allows evaluating the temperature distribution on investigated objects showing which parts tend to be warmer. Also, we want to specify the primary sources of IR emissions on the vessel and discuss modeling steps of IR signature .The use of computer models allow to measure effects of many factors including solar heating, reflection and sea surface clutter. The methodology involves a multi-step process. First the infrared signatures of the ship characterized using a graphical tool and finally we evaluated the infrared emission. Field measurements were done after theoretical analysis and thermal camera is used in this step. Experiments are conducted in selected conditions taking into account solar radiation and radiation reflected from elements of the surrounding environment.