Injection of CO, into depleted natural gas reservoirs offers the potential to sequester carbon while simultaneously enhancing CH, recovey. Enhanced CH, recovery can partially offset the costs of CO, injection. With the goal of analyzing the feasibility of carbon sequestration with enhanced gas recovery (CSEGR), we are investigating the physical processes associated with injecting CO, into natur...

Despite many advantages of BrushLess DC motor, torque pulsation is one of the most important disadvantages of it. At first, an optimum primary design of BLDC motor is done using PSO algorithm. Then, other parameters for reducing the torque pulsation are considered by finite element method. It is shown that fractional slot structure has many advantages than conventional one. Both cogging and rip...

The bipolar low-voltage DC (LVDC) distribution system has become a prospective solution to better integration of renewables and improvement efficiency reliability. However, it also faces the challenge power voltage imbalance between two poles. To solve this problem, an interface converter with asymmetrical operating capabilities is applied in paper. steady-state models LVDC equipped grid connec...

The wireless system for communication uses the orthogonal frequency division multiplexing in these days. The rapid growth of high data rate transmission makes a need to improve the performance of a network. This can be made easy by using Orthogonal Frequency Division Multiplexing. OFDM is an approach in which the multicarrier transmission technique has been used for wireless communication. Here...

As anthropogenic activities continue to drive increases in extreme events, the fundamental solution of reducing greenhouse gas emissions remains elusive. Thus, there is growing interest stratospheric aerosol injection (SAI) offset some most dangerous consequences climate change. Although global SAI deployment would likely be easy detect by metrics, detectability on events might more difficult. ...

Multiplying delay-locked loops (MDLLs) are gaining popularity due to their superior noise performance over conventional phase-locked loops (PLLs) [1,2]. Recent designs are trending towards an all-digital implementation that provides advantages such as compact area, good scalability and low power compared to traditional analog implementations. Achieving fractional frequency multiplication is, ho...

The effect of Gibberellic Acid (GA3) and Benzyladenine (BA) on Aloe vera was evaluated at pot cultivation conditions. This study was performed in two factorial test based on complete random plan and 4 repeats with 12 treatments. The main factor was included spraying, drip and spraying + drip. Secondary factor was included concentrations of GA3 and BA at 0, 100...