بحث
الآن تُعرض المواد 11 -- 20 من 94
Fast Efficient Transforms for Contour Extraction from Encrypted Medical Image
(CEST-2018, 2018-09-27)
The necessity of knowing the boundaries of the image is occupies the most important to researchers. With clear conrours, the doctor can easily diagnose the patient's condition. This is possible, but the challenge is whether ...
Fast Efficient Transforms for Contours Extraction and Image Compression using Zonal Sampling Methods
(CEST-2018, 2018-09-27)
People who use digital image processing techniques usually deal with a huge amount of data. Because storing image data for future needs requires a lot of storage space. In a similar way, sending image data at a reasonable ...
Modeling and Performance Evaluation of MapReduce in Cloud Computing Systems Using Queueing Network Model
(CEST-2018, 2018-09-27)
MapReduce is a two -stage information processing technique and it is common concept for big data. Map and Reduce procedures are distributed among some processors within a cluster in the cloud. The performance modeling and ...
Bandwidth Optimization Through Hybrid Codecs G.711 and G.729 for VoIP Ethernet, FR and MP Networks
(CEST-2018, 2018-09-27)
With the rapid growth in both internet and telecommunication technologies, VoIP has become more and more popular and expected to replace the traditional telephony services. The main issues in communication of real time ...
Color Image Encryption in the Spatial Domain Using 3-D Chaotic System
(CEST-2018, 2018-09-27)
ABSTRACT
Users of Internet daily send and receive many images through social media. These images are vulnerable to hack by attackers. Therefore, it is necessary to develop methods to protect these images against attackers. ...
Enhancement of Bandwidth of U-shape Loaded Microstrip Patch Antenna According to 802.11b Standard
(CEST-2018, 2018-09-27)
The bandwidth of microstrip antennas is proportional to the thickness of the substrate that used. Since most substrates are very thin in terms of wavelengths, the bandwidth is usually small. To enhance the bandwidth, a ...
Combined Image Encryption and Steganography Algorithm in the Spatial Domain
(CEST-2018, 2018-09-27)
In recent years, steganography has emerged as one of the main research areas in information security. Least significant bit (LSB) steganography is one of the fundamental and conventional spatial domain methods, which is ...
Hearing Protection System By Using a Simple Noise Reduction Strategy
(CEST-2018, 2018-09-27)
In this paper, a very brief discussion and analysis of the noise problem are given particularly at the work environment, where the workers hearing system needs to be protected from an excessively loud noise source but at ...
Experimental Investigation on the Performance Evaluation of Solar Tracking Photovoltaic System
(CEST-2018, 2018-09-27)
The optimization of photovoltaic (PV) power generating system needs to be magnified by maximizing the solar radiation falling perpendicular on the PV module surface. The photovoltaic module can extract maximum power from ...
Antenna Elevation Control using Multiple Switched Self-Tuning Controllers Design
(CEST-2018, 2018-09-27)
Adaptive controllers have a lot of advantages over conventional ones, especially when the model of the plant to be controlled is unknown or changes with time. This paper proposes a control scheme for multiple adaptive ...