Abstract Electrocardiogram (ECG) is nearly a periodic signal widely used for the detection and diagnosis of cardiac abnormalities. Recently with the inception of computer based techniques, automated analysis of shape and pattern of ECG waveform has facilitated physician to obtain fast and accurate diagnosis of cardiac disorders. Abnormalities related to sinus rhythms can be detected by using ECG signal beat classification,... Electrocardiogram (ECG) is nearly a periodic signal widely used for the detection and diagnosis of cardiac abnormalities. Recently with the inception of computer based techniques, automated analysis of shape and pattern of ECG waveform has facilitated physician to obtain fast and accurate diagnosis of cardiac disorders. Abnormalities related to sinus rhythms can be detected by using ECG signal beat classification, whereas Ischemic Heart Disease and Myocardial Infarction can be detected by deviation in ST segment or inversion of T wave in ECG signal. This paper discusses techniques proposed earlier in the literature for noise removal, feature extraction and classification of ECG signals. Read More Read Less

Abstract The development of digital technology has spawned a convergence of technology, so that the cellular phone which initially serves as a communication tool has now evolved into a device that can receive television broadcasts or mobile tv. Mobile tv services allow users to watch television anywhere and anytime. Mobile tv service provides a variety of interesting content, and give an... The development of digital technology has spawned a convergence of technology, so that the cellular phone which initially serves as a communication tool has now evolved into a device that can receive television broadcasts or mobile tv. Mobile tv services allow users to watch television anywhere and anytime. Mobile tv service provides a variety of interesting content, and give an authority to the users to choose the desired video content. Currently, there are still many people who have not felt the benefits of mobile tv services. Therefore, research on the determination of factors that influence users to adopt mobile tv service is considerably important. This research combines theoretical model of TAM and U&G theory to analyse the factors that affect user acceptance of the mobile tv. The research is conducted in Daerah Istimewa Yogyakarta, Indonesia. This study presents a quantitative analysis based on SEMPLS method, involving 107 respondents. The results showed that latent variables such as normative pressure and attitude were factors that affected a person in using mobile tv. This research showed that the level of service availability was not a significant influence on a person’s attitude in using mobile tv. This proves that the flexibility of mobile tv is not a major advantage of mobile tv. Read More Read Less

Abstract The thin films of Zn1- xCuxSe (x= 0.00, 0.05, 0.10, 0.15) were prepared on a glass substrate by using closed space sublimation (CSS) technique at room temperature. The effect of copper concentration on the electrical properties such as mobility, Carrier concentration, sheet resistance and conductivity of the thin films were investigated by Hall Effect measurement system. The carrier concentration and... The thin films of Zn1- xCuxSe (x= 0.00, 0.05, 0.10, 0.15) were prepared on a glass substrate by using closed space sublimation (CSS) technique at room temperature. The effect of copper concentration on the electrical properties such as mobility, Carrier concentration, sheet resistance and conductivity of the thin films were investigated by Hall Effect measurement system. The carrier concentration and conductivity values of the ZnSe thin films are increased with the increase of Cu doping at certain level and then start decreasing. The sheet resistance and mobility decreases with the increase of copper concentration. It is evaluated that the electrical properties of the ZnSe thin films are controlled by copper doping. The contact analysis was also done. For contact analysis active silver passive silver and contactless measurements were used. The analysis shows the optimum values with active silver and minimum conductivity with passive silver. Moreover the deposited films were annealed at 100°C, 200°C, 300°C, 400°C and 500°C for mint in air. The effect of annealing on the mobility, Carrier concentration, sheet resistance and conductivity of the thin films were observed. The results show that the electrical properties of the ZnSe thin films are significantly improved with annealing. Read More Read Less