one of the effective methods to improve the thermal efficiency of solar collectors is using nanofluids as the coolant. the present study experimentally investigated the effect of sio2/water nanofluid with 1% mass fraction on the performance of a symmetric collector, i.e. conical solar collector. the conical solar collector with 1 m2 area and normal to the earth was tested in ahvaz, a city in th...

this paper has used a multisectoral input-output model of iranian economy to examine the ability of different sectors of economy to create jobs per unit of output as well as capital. the results reveal that there is no conflict in a growth strategy that simultaneously attempts to improve efficiency i.e. reallocating production to sectors with low drcs, equity and job creation. although sectoral...

in the paper an attempt was made to study the performance of indian banks with the help of camel(c-capital adequacy, a- asset quality, m- management quality, e-earnings, l-liquidity i.e. camel) rating system, over the period of five years from (2011 to 2015) and then evaluated out the efficiency of banks with the help of gra (grey relation analysis) technique there by gaining confidence from in...

measuring the performance of a production system has been an important task in management for purposes of control, planning, etc. lord kelvin said :“when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meager and unsatisfactory kind.” hence, manageme...

this study has investigated the effects of ict to increase efficiency and empowerment of rural women using data envelopment analysis (dea) to investigate the mechanism of effectiveness of information technology (ict) on the efficiency and empowerment of rural women in the village of gharn abad, golestan province. in this study, using survey methods, 38 users and 25 non-users of technology (cont...

Efficiency evaluation is one of the major issues in urban transportation. Since the efficiency of the systems is affected by its data and output, what makes the results of the performance evaluation valid and applicable, is selecting the appropriate data and outputs of the system. In this study, the efficiency of the subway stations in Tehran in case of return, compared to the fixed scale, is m...

One of the most important issues in strategic management is enhancing employees’ motivation to contribute in the implementation of strategies; because they usually do not pay necessary attention to strategies. Accordingly, it is required to consider and calculate their roles in implementing strategies. In terms of employees’ role in the organization, they have managerial (goal setter) and/or no...