this paper presents feature selection for fault diagnosis based on recursive generalized extended least squares algorithm (RGELS). RGELS model is derived and validation of this model is tested utilizing good statistical methods, which, namely best-fit criterion. The system parameters are estimated employing the proposed algorithm. Dimension reduction of the system parameters is done to get best important features using linear discriminant analysis. Finally, the simulation results confirm the effectiveness of the algorithm.

Coronary heart disease (CHD) remains the leading cause of death in DM2. The purpose of this study is to determine the usefulness and effectiveness of exercise electrocardiography (Ex-ECG) and standard two-dimensional echocardiography (2DE) among type 2 diabetic (DM2) and nondiabetic (NDM) of both genders in the diagnosis of CHD accompanied with biochemical risk factors for CHD A total of 102 age-matched DM2 and non-diabetic individuals in both genders were recruited in the current study. All cases were assessed for CHD diagnosis using the Bengali version of the Rose Angina Questionnaire guidelines. Cardiologists examined All groups clinically, and Ex-ECG and 2DE were applied, accompanied by biochemical parameters analysis of all participants in Ematiga's laboratory. All diabetic and non-diabetic subjects are age-matched. The diabetic women were obese with a BMI of (>30 kg/m2 ). The duration of diabetes in females was (10.2±1.02 yrs) and in males was (9.7±0.8 yrs). There was a positive relationship between the duration of diabetes and HbA1c level. Some evidence presented in this study revealed that the percentage of LVEF is negatively correlated with the duration of diabetes mellitus. In addition, there is statistical significance in ST depression between both genders in (ND) and (D) groups. The relationship between ST-depression expressed as mV detected by Ex-ECG and duration of diabetes in females and males. In conclusion, both Ex-ECG, and 2DE testing are non-invasive, easy to perform, and accessible in rural hospitals and clinics. It can be beneficial in diagnosing, risk stratifying or assessing patients with CHD provided appropriate patient selection is used to enhance its sensitivity and specificity, especially in the presence of biochemical risk factors for coronary heart disease explained in this study helped identify or exclude the early diagnosis of CHD.

Class E power amplifier circuit consists mainly of a transistor operates as a switch, load network and series LC filter tuned to fundamental frequency. There is different configurations to realize class E power amplifier circuit according to the load network such as: shunt capacitance configuration, shunt inductance configuration and parallel circuit configuration. In this paper the performance parameters (such as: PAE, overall efficiency, drain efficiency, gain, drain voltage and current waveforms) of class E power amplifier with shunt capacitance configuration at frequencies [0.25, 0.5, 0.75 and 1 GHz] are observed

This paper presents a synthesizing design of a linear antenna array by adapting the Schelkunoff method. The idea behind this type of design is to produce nulls in radiation pattern of a structure without any notable effects on the main lobe. This design has been undertaken around 9 GHz, where both theoretical and simulation results are achieved and will be the target of this work. X-band searching radar system is considered where sing

Produced water from carbonate reservoir can be reinjected into the formation to stimulate hydrocarbon production in aging wells. This is known as water injection or water flooding. This is the most economically friendly method of produced water disposal. In this paper, a laboratory approach to compare and evaluate the efficiency of formation and sea water injection for enhancing oil recovery at room condition in carbonate reservoirs. The main objective of this paper to achieve the maximum oil recovery for the limestone rock by using formation and sea water. This study was conducted using several samples of limestone rock saturated with oil by placing them in the reservoir conditions by placing them in a vacuum oven to ensure complete saturation of the samples with oil and then extracting the oil from them using liquid permeability where the samples are injected by formation and sea water. The oil recovery by formation water injection is range from 26.4 % to 47 %. The oil recovery by sea water injection is range from 0.00 % to 10 %. The oil recovery factor for formation water injection is higher than the oil recovery factor for sea water injection.