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The Impact of Employee Engagement, Innovation, and Customer Satisfaction and Their Synegistic Influence on Firm Performance in Manufacturing and Service Industries
, M.Sc. Thesis Sharif University of Technology ; Habibi, Moslem (Supervisor)
Abstract
Organizations increasingly prioritize and utilize their intangible assets in a combined manner to achieve sustainable competitive advantage and success in a volatile market environment. In this research, the most important intangible assets of organizations have been identified. Using the Generalized Method of Moments, a suitable regression method for the statistical analysis of panel data, the impact of intangible assets on organizational profitability—specifically the return on assets—is examined separately and simultaneously across manufacturing and service industries. These assets include innovation, employee engagement, and customer satisfaction. The population of this study consists of...
Application of Magnetorheological Damper for Control of Vibration in Marine's Seat
, M.Sc. Thesis Sharif University of Technology ; Behzad, Mahdi (Supervisor) ; Mahdigholi, Hamid (Supervisor)
Abstract
Suspension system is one of the most influential components of vehicle in the area of stability and comfort. The suspension system is designed based on the use of the vehicle and stable characteristics. Obviously, being distant from the designed spots and applying various gates, its optimized performance is lost. Semi-active suspensions by changing their features get floating designed spots to be created and suspension system is always in optimum conditions through a suitable control. This research covers the efficacy of using damper Magneto Rheological which is called damper (MR) on the performance of seat suspension system in reducing vibrations. This damper is considered as a device in...
Does the short-term boost of renewable energies guarantee their stable long-term growth? Assessment of the dynamics of feed-in tariff policy
, Article Renewable Energy ; Volume 159 , October , 2020 , Pages 1252-1268 ; Hamed Shakouri, G ; Mashayekhi, A. N ; Kazemi, A ; Sharif University of Technology
Elsevier Ltd
2020
Abstract
Feed-in tariff (FiT) is one of the most efficient ways that many governments throughout the world use to stimulate investment in renewable energies (REs) technology. For governments, financial management of the policy could be challenging as it needs a considerable amount of budget to support RE producers during the long remuneration period. In this paper, it has been illuminated that the early growth of REs capacity could be a temporary boost. And the socio-economic structure of the system will backlash the policy if some social mechanisms are not considered. Social tolerance for paying REs tax and potential investors’ trust emanated from budget-related mechanisms -which have rarely been...
Synthesis of Graphene and its Application for Adsorption of Cobalt and Strontium Ions, and as an Electrode in Electrochemical Cells (Battery)
, M.Sc. Thesis Sharif University of Technology ; Outokesh, Mohammad (Supervisor) ; Hosseinpour, Morteza (Co-Supervisor)
Abstract
Although much progress has been made in eliminating, conserving, and reducing migration and emissions of radioactive materials, the risk of radioactive material release into the environment is still one of the most important hazards in the use of nuclear energy. In this study, graphene compounds have been used as adsorbents for the removal of radioactive materials due to their high level, cost-effectiveness and simplicity of the synthesis process of various composites. In this regard, the removal of strontium and cobalt by graphene compounds has been investigated. Magnetite nanoparticles were anchored on the surface of graphene by sol-gel method and adsorption in batch mode was investigated....
The Biodegradation of methyl tert-butyl ether (MTBE) by indigenous Bacillus cereus strain RJ1 isolated from soil
, Article Petroleum Science and Technology ; Volume 31, Issue 18 , 2013 , Pages 1835-1841 ; 10916466 (ISSN) ; Javid, A. H ; Jalilzadeh Yengjeh, R ; Hassani, A. H ; Mostafavi, P. G ; Sharif University of Technology
2013
Abstract
Methyl Tert-Butyl Ether (MTBE) is an oxygenated organic compound extensively substituted for lead in gasoline worldwide. MTBE can affect human and environment. In this research, biodegradation capability of MTBE by identified indigenous Bacillus cereus strain RJ1 was studied. Obtained results showed that biological removal of MTBE with 200 mg/L samples in 28°C is 27.5% while in 37°C within 120 days reaches to 34%. In addition, biodegradation of Bacillus cereus RJ1 in 500 mg/L and 1,000 mg/L is 28% and 23.9% in 28°C, respectively. Therefore, this bacterium could clean up MTBE from the environment