Empirical Assessment on the Impact of Leverage and Capital Adequacy on Performance of Non-Bank Financial Institutions in Bangladesh

Non-Bank Financial Institutions (NBFIs) epitomize the most significant source of financing in our economy. NBFI is highly levered in nature. This study tries to empirically identify how capital adequacy and leverage impact NBFIs’ performance in Bangladesh. A number of econometric models using panel data from 2009 to 2019 of 23 NBFIs of Bangladesh have been estimated to achieve the objective of this study. In this research, Return on Assets, Return on Equity and Tobin’s Q are used as a measure of NBFIs performance of Bangladesh. According to estimated result it has been found that capital adequacy has a positive effect on profitability of NBFI’s in Bangladesh. However, the research has found conflicting results when impact of leverage on NBFI performance is measured. Taking the empirical findings into consideration, the management of the NBFIs should embrace policies that are likely to help the NBFIs to maintain enough capital. Keywords: leverage, capital adequacy, NBFI performance, profitability, NBFI equity

The Empirical Assessment of Vibration in HVAC Systems

Background and purpose: Vibration caused by ventilation systems in buildings is one of the harmful physical factors that can cause harm to residents. Therefore, measuring and controlling vibration is important. Materials and Methods: In the first step of the study, the vibration accelerometer was placed on the base of a fan where the vibrations were sent toward the duct wall. A vibration assessment of the building was conducted in the other steps to compare with guidelines. In the next step, isolation method was used to control vibration. By placing the isolator on the duct wall, the accelerometer was located on the body of the duct wall and the value of vibration was measured in a millimeter per second. All stages of the experiment were performed in the Faculty of Health of Isfahan University of Medical Sciences in 2018. Results: The maximum vibration velocity reduction in the building was related to the frequency of 68 Hz, which reached 33 mm/s after isolation. In addition, the fan vibration at 485 Hz was equal to 2.1 m /s, which decreased to 2 mm /s after isolation. Conclusion: Comparison of vibration after fan isolation with standard showed that this method has been effective in reducing the fan vibration resulting in the vibration to reach below the standard.