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The cochlear microphonic (CM) is an electrical signal generated inside the cochlea in response to sound. This electrical signal reflects mechanical activity in the cochlea and the excitation processes involved in its generation. However, the difficulty of obtaining this signal and the simplicity of obtaining other signals such as otoacoustic emissions have discouraged the use of the cochlear microphonic...
Nowadays, almost all the enterprises in the world fall in Small Medium Enterprises (SMEs) category even though SMEs has different definitions in different countries. At the same time, there is no exemplar standard and /or framework for information technology (IT) governance for SMEs. This paper presents the main issues in implementing IT governance in SMEs. Firstly, it explains the definition of SMEs...
Today, a great concern for the integration of high-frequency systems are the problems associated with the synchronization difficulties. The VCO block of PLLs is the primary source of timing jitter and this work addresses issues significant to the design of VCOs with Single-Ended Control in PLLs. The main goal of this work is to develop Two high frequency CMOS PLLs in 0.13μm technology. The advantage...
In this paper, a blind video watermarking algorithm based on 3D wavelet transform and Human Visual System (HVS) model is proposed. The proposed method is based on extracting temporal characteristics of video signal and using it to adjust spatial features of each frame. These frames are designed based on HVS model embed the message. Then the message will be extracted from video watermarked through...
In this paper, a general delay locked loop based frequency multiplier is presented. No LC-tank and ring oscillator are used in the proposed design such that the power dissipation and chip area are drastically reduced. Moreover this multiplier does not require external component and it is primarily intended for ASIC design. All the simulation results are based upon UMC 0.13μm CMOS process at 1.2 V...
Interpretation of Fetal ECG can show important indications about health and condition of fetus during pregnancy. These indications can help clinicians to cure some diseases and prevent some unwanted problems during labor. However, despite of the rich literature in this field, there is not still a commercial ECG Fetal Monitor which can record Fetal ECG non-invasively during pregnancy. In this paper,...
One major problem is to record software assets and update them in the organizations. Information technology service management (ITSM) usually refers to ISO/IEC 20000 standard that the configuration management (CM) process known as hart of it. configuration management database (CMDB) is part of the CM that records and updates changes and retrieve the services. This paper focus on propose a novel ITSM-based...
ECG denoising has always been an important issue in medical engineering. The purposes of denoising are reducing noise level and improving signal to noise ratio (SNR) without distorting the signal. This paper proposes a method for removing white Gaussian noise from ECG signals. The concepts of singularity and local maxima of the wavelet transform modulus were used for analyzing singularity and reconstructing...
ITIL is the most widely used IT framework in most organizations nowadays. Many public and private IT organizations have good impressions and attempt to adopt ITIL into their own businesses. However, the ITIL implementation faces some issues by the target organizations to accept this as a complete framework. In addition, there are several steps to implement this framework in the target organizations...
ITIL (information technology infrastructure library) is the most widely used IT framework in organizations. This de-facto standard is a service-based IT-framework that aims to improve the quality of organizational services. The core of this framework is configuration management that includes configuration management data base (CMDB) to record, update and trace all assessed activities and information...
This paper proposes an automated methodology for extracting fetal heart rate from single cutaneous potential abdominal signal. The proposed method calculates fetal heart rate in three steps. First, two-tier method based on singular value decomposition and polynomial classifiers is applied to the abdominal signal to separate the fetal ECG and the maternal ECG. Second, the fetal R-peaks are detected...
This paper addresses the enhancements achievable by the application of wavelet transform to fetal ECG (FECG) signals extracted by polynomial networks. The polynomial networks technique has been exploited to isolate fetal electrocardiogram (FECG) from the undesired mapped maternal electrocardiogram (mapped MECG). In this paper wavelet transform is used to enhance the extracted FECG. Processing of both...
In this paper, we propose a two-tier method for extracting fetal ECG from a single lead abdominal ECG signal. The proposed method is based on a combination of singular value decomposition (SVD) and polynomial classifiers. As a first tier, SVD is used to extract an estimate of the maternal component from the composite abdominal signal by exploiting its quasi-periodic nature. The extracted maternal...
Several frameworks, tools and standards have been included in IT management systems, in organizations. However, on their own, they are not comprehensive enough to serve as efficient IT management system. This paper reviews two established frameworks, i.e. ITIL, COBIT and a standard, ISO/IEC 27002 focusing on their similarities and differences. It then proposes a comprehensive framework by integrating...
"Gap" is a fundamental problem in every organization and there are some models and methods to "identify" and remove or minimize those gaps in the organizations . This paper tries to use an ITIL based solution to remove or abate those "key discrepancies" in the organizations based on using Model of Service Quality Gaps(S. Q. G) as a most known model to identify gaps in...
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