Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
24
1
2015
01
01
A Simulation Based Geometrical Analysis of MEMS Capacitive Pressure Sensors for High Absolute Pressure Measurement
1
18
62657
10.21608/mjeer.2015.62657
EN
Ahmed
Gafar
Faculty of Elect., Eng., Menoufia University, EGYPT.
Galal
Atlam
Faculty of Elect., Eng., Menoufia University, Egypt.
Imbaby
Mahmoud
Atomic Energy Authority, Egypt.
Journal Article
2015
04
01
This paper presents the performance characteristics evaluation of MEMS capacitive pressure sensor. This type of absolute pressure measuring sensor is used for pulse rate measurement. Polysilicon material provides a higher sensitivity when chosen as diaphragm material. Two MEMS capacitive pressure sensors with varying geometries are analyzed in Matlab simulation software. The geometries are very common having parallel plates with spring loaded. In first stage the shape of the parallel plates is circular and in second case of the parallel plate is square. During modeling of these two diffident shaped sensors, the area of parallel plates in both cases is considered as equal. Once the geometries are formed, the electromechanical analyses have been performed. It is observed that these types of pressure sensors can withstand a wide range of absolute pressure from kilo Pascals to several order of mega Pascals. In this work, Matlab environment is employed to model this sensor and accurate model is devised to study its performance. Simulation results are obtained and compared with published work of FEM (Finite Element Method) based Multiphysics simulation platform and full argument is obtained. The proposed model allows handling different parameters affecting the performance of this sensor.
https://mjeer.journals.ekb.eg/article_62657_36044285f003bdccd3ab7ca6fec8369c.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
24
1
2015
01
01
High Density Noise Removal in Endangered Silent- Films Using Non-linear Filters: A Comparative Study
19
42
62658
10.21608/mjeer.2015.62658
EN
Hassan
ElKamchouchi
Faculty of Engineering, Alexandria University, Alexandria, Egypt.
Ahmed
Khalil
Faculty of Engineering, Alexandria University, Alexandria, Egypt
Samy
Darwish
Faculty of Engineering, Pharos University in Alexandria, PUA Alexandria, Egypt
Journal Article
2015
07
07
The loss and distortion of the feature films at films silent-era constitutes an alarming in cultural recording for most nation's. So the first directive of congress library was to support archival research projects that would restore the American movies produced during the 19th and 20th centuries. Noise removal is an important task in video restoration where the "original" video is discernible. Therefore this work contemplates to introduce an overview of some algorithms that can be used to restore the corrupted video that presented in AVI container format. These algorithms are untrimmed decision based median filter (UDBMF), decision based median filter (DBMF), weighted median filter (WMF), and standard median filter (SMF). A comparable analysis among all filters was done at different levels of noise based on some calculated parameters as mean square error (MSE), mean absolute error (MAE), image enhancement factor (IEF), peak signal to noise ratio (PSNR), and correlation ratio (CORR). Simulation results indicate that DBMF and UDBMF have superior performance compared to other nonlinear filters for noise level up to ninety percent. Also the necessary details in video were preserved.
https://mjeer.journals.ekb.eg/article_62658_d9ac7978b35f66c5542022b17f25699e.pdf
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
24
1
2015
01
01
Statistical Analysis of Alzheimer ’s disease Images
43
66
64123
10.21608/mjeer.2015.64123
EN
Mohamed M.
Dessouky
Dept. of Computer Science and Eng., Faculty of Elect., Eng., Menoufia University, EGYPT
Mohamed A.
Elrashidy
Dept. of Computer Science and Eng., Faculty of Elect., Eng., Menoufia University, EGYPT
Taha E.
Taha
Department of Electronic and Electrical Communications, Faculty of Electronic Engineering,
Menoufia University, EGYPT
Hatem M.
Abdelkader
Faculty of computers and information, Menoufia University, EGYPT.
Journal Article
2015
08
05
; "> <span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">Alzheimer's disease is the most common type of dementia which<br /><span style="font-family: Arial; font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">has no cure nor imaging test for it. Diagnosis of the Alzheimer’s<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">disease (AD) still a challenge and difficult. An early diagnosis for<br /><span style="font-family: Arial; font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">Alzheimer’s disease is very important to delay the progression of it.<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">This paper extract and analyze various important statistical<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">features of MRI brain medical images to provide better analysis to<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">discriminate among the different types of tissue and diagnose of<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">AD. These statistical features had been used for detection of the<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">abnormalities among different demented and non-demented MRI<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">AD images. Also, it investigates and builds up an efficient<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">Computer Aided Diagnosis (CAD) system for AD to assist the<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">medical doctors to easily diagnose the disease. Statistical,<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">structural, and textural features had been calculated for different<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">images and classified using the SVM classifier. In addition, this<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">paper proposes an algorithm to improve the performance of the<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">CAD system. The performance of the CAD system based on<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">statistical analysis and the proposed algorithm had been measured<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">using different metric parameters. The obtained results indicate<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">that the accuracy improved from 49% without using the proposed<br /><span style="font-size: 11pt; color: #000000; font-style: normal; font-variant: normal;">algorithm to 100% using the proposed algorithm.</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
24
1
2015
01
01
Advanced Relay Station for LTE-A Downlink Physical Layer
67
78
64128
10.21608/mjeer.2015.64128
EN
Mohamed G.
El-Mashed
Department of Electronics and Electrical Communications, Faculty of Elect.,Eng., Menoufia University, Menouf 32952, Egypt
S.
El-Rabaie
Department of Electronics and Electrical Communications, Faculty of Elect.,Eng., Menoufia University, Menouf 32952, Egypt
Journal Article
2015
09
14
Relay Station (RS) enhance the performance of cellular system at cell edge. It also extends the transmission to areas outside the coverage. This paper studies the transmission through direct and relay link between Base Station (BS) and User Equipment (UE). This paper also proposes RS based Orthogonal Space-Time Block Codes (OSTBCs) for fourth generation cellular system (i.e. LTE-A). The received signals at UEs for different transmission scenarios are mathematically derived and analyzed. We compare the performance of LTE-A Downlink Physical Layer in the case of direct link, relay link and relay link based OSTBCs. The SER performance for LTE-A with three transmission scenarios is calculated for a certain range of SNRs. Results show that the transmission link that uses RS based OSTBCs gives better performance than direct link and relay link<span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"><span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"><span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"><span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"><span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"><span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"><span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"><span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"><span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"><span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"><span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"><span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"><span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"><span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;">.<br style="font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" /></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
24
1
2015
01
01
Memristor Overview up to 2015
79
106
64132
10.21608/mjeer.2015.64132
EN
Sherif F.
Nafea
Dept of Elect Eng., Fac. of Eng., Ismailia, Suez Canal Univ., Egypt.
Ahmed A.S.
Dessouki
Dept. of Elect Eng., Fac. of Eng., Port Said, Port Said Univ., Egypt
S.
El-Rabaie
Dept. of Electronics andElectrical Communications, Faculty of Electronic Engineering, Menoufia University, Menouf, Egypt
Journal Article
2015
10
11
Until 1971, the known three fundamental electrical elements<br />were resistor, inductor, and capacitor. In 1971, Professor Leon<br />Chua proposed theoretically a fourth fundamental electric<br />element, and he called it “Memristor.” Memristor is a twoterminal element whose resistance depends on the magnitude,<br />direction, and duration of the applied voltage. This element is<br />realized later by HP labs in 2008, which opened a wide area of<br />research on the memristor and its possible applications. This<br />paper gives an overview of the device properties, fabrication,<br />modeling approaches of the memristor and some possible<br />future improvements. The paper also surveys the digital and<br />analog applications of memristors, and possible future<br />improvements in some applications
Menoufia University, Faculty of Electronic Engineering
Menoufia Journal of Electronic Engineering Research
1687-1189
24
1
2015
01
01
An Electrical Model for Atom's Emission and Future Electronics
107
113
64135
10.21608/mjeer.2015.64135
EN
Ali A.
Elabd,
Faculty of Engineering, Menoufia University, Menouf, EGYPT
El-Sayed M.
El-Rabaie
Faculty of Engineering, Menoufia University, Menouf, EGYPT
Abdel-Aziz T.
Shalaby
Faculty of Engineering, Menoufia University, Menouf, EGYPT
Journal Article
2015
09
03
px; "> <<span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;">In this paper, an electrical model <span style="font-family: Arial; font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;">– <span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;">equivalent circuit <span style="font-family: Arial; font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;">– <span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;">for atom's<span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"> emission is presented and Hydrogen atom is taken as an<span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"> example. Also, the line spectra of Iron and Sodium are used to<span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"> verify the model. This may open a new area of research to build<span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"> practical <span style="font-family: Arial; font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;">digital circuits such as INVERTER, NAND, NOR …etc<span style="font-size: 12pt; color: #000000; font-style: normal; font-variant: normal;"> from some cascaded atoms.</span></span></span></span></span></span></span></span></span></span></span>