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technological-development
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Evolutionary learning methodology: A case study of R&D strategy development
, Article Technological Forecasting and Social Change ; Volume 80, Issue 5 , 2013 , Pages 956-976 ; 00401625 (ISSN) ; Arasti, M. R ; Hounshell, D. A ; Sahebzamani, S ; Sharif University of Technology
2013
Abstract
This article concerns the notion of methodology in strategic management of R&D/technology. Though development of new tools and methods has received much attention during the recent decades, attention to understanding methodologies has remained disproportionally low. In this study we distinguish two methodologies that are used in strategic management of R&D/technology: planning methodology and evolutionary learning methodology. We mainly focus on defining and describing the origins, nature, and characteristics of the latter. We propose a framework for methodology selection by investigating context, content, and process factors. Using this framework, we provide supportive evidence for...
Stochastic modeling of the energy supply system with uncertain fuel price - A case of emerging technologies for distributed power generation
, Article Applied Energy ; Volume 93 , 2012 , Pages 668-674 ; 03062619 (ISSN) ; Saboohi, Y ; Sharif University of Technology
2012
Abstract
A deterministic energy supply model with bottom-up structure has limited capability in handling the uncertainties. To enhance the applicability of such a model in an uncertain environment two main issues have been investigated in the present paper. First, a binomial lattice is generated based on the stochastic nature of the source of uncertainty. Second, an energy system model (ESM) has been reformulated as a multistage stochastic problem. The result of the application of the modified energy model encompasses all uncertain outcomes together and enables optimal timing of capacity expansion. The performance of the model has been demonstrated with the help of a case study. The case study has...
Proposal of a new design for valveless micropumps
, Article Scientia Iranica ; Volume 18, Issue 6 , December , 2011 , Pages 1261-1266 ; 10263098 (ISSN) ; Movahhedy, M. R ; Assempour, A ; Sharif University of Technology
2011
Abstract
A new design for a valveless micropumping device has been proposed that integrates two existing pumping technologies, namely, the wall induced traveling wave and the obstacle-type valveless micropump. The liquid in the microchannel is transported by generating a traveling wave on the channel, while the placing of two asymmetric trapezoid obstacles, along the centerline of the channel inlet and outlet, leads to a significant (up to seven times) increase of the net flow rate of the device. The effectiveness of this innovative design has been proved through a verified three-dimensional finite element model. FluidStructure Interaction (FSI) analysis is performed in the framework of an Arbitrary...
Iran atlas of offshore renewable energies
, Article Renewable Energy ; Volume 36, Issue 1 , January , 2011 , Pages 388-398 ; 09601481 (ISSN) ; Rahimi, R ; Sharif University of Technology
2011
Abstract
The aim of the present study is to provide an Atlas of IRAN Offshore Renewable Energy Resources (hereafter called 'the Atlas') to map out wave and tidal resources at a national scale, extending over the area of the Persian Gulf and Sea of Oman. Such an Atlas can provide necessary tools to identify the areas with greatest resource potential and within reach of present technology development. To estimate available tidal energy resources at the site, a two-dimensional tidally driven hydrodynamic numerical model of Persian Gulf was developed using the hydrodynamic model in the MIKE 21 Flow Model (MIKE 21HD), with validation using tidal elevation measurements and tidal stream diamonds from...
Turboexpander Technology Development Model and Display Roadmap for Pressure Reducing System based Energy Recovery by Turboexpander
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadollah (Supervisor)
Abstract
High pressure natural gas is transported from processing plants to end users via a network of natural gas system. Pressure reduction along the transport system is compensated in compressor stations. High pressure natural gas flows in to distribution network in demand center which operates at medium pressure. Medium pressure gas is transferred to end users who can use natural gas with low pressure. Therefore, pressure of natural gas is reduced consequently when gas flows from transport systems to distribution network and end users. Work is dissipated during pressure reduction which otherwise could be converted in to power.A technology that could be utilized for conversion of pressure work in...
Development of Model for Evaluation of Energy Technologies and R&D Planning
, Ph.D. Dissertation Sharif University of Technology ; Ghofrani, Mohammad Bagher (Supervisor) ; Saboohi, Yadollah (Supervisor)
Abstract
In this research work an analytical instrument has been developed for assessment of energy technologies, R&D resource allocation and technology development. Development of new technologies has been considered according to the specific conditions of developing countries. The analytical instrument includes two models interlinked with each other: energy technology assessment and optimal control of innovation activities. Energy technology assessment and prioritization of new energy technologies are provided by the model of the energy supply system that contains a detailed representation of current and emerging technologies characterized in terms of their technical indices. The results of this...
Technology planning system for the Iranian petroleum industry: lessons learned from sanctions
, Article Technological Forecasting and Social Change ; Volume 122 , 2017 , Pages 170-178 ; 00401625 (ISSN) ; Ghazinoory, S ; Arasti, M ; Fassihi, S. F ; Sharif University of Technology
Abstract
Iran's petroleum industry is facing challenges including maturity of hydrocarbon fields, growing population of the nation that demands additional revenues from petroleum exports, and international economic sanctions that have limited access to technology sources. Restrictions from international technology providers have led managers of the industry enterprises to try to develop their needed technologies inside the country. The Ministry of Petroleum has supervised this and as a result, a technology planning systems has been developed and implemented since 2009. In this paper, an overview of the Iranian petroleum industry is provided from a technology planning perspective. The focus has been...
Power sector development in Iran: a retrospective optimization approach
, Article Energy ; Volume 140 , 2017 , Pages 330-339 ; 03605442 (ISSN) ; Aryanpur, V ; Sharif University of Technology
Abstract
This paper provides an overview of the power sector development in Iran for the period 1984–2014. A retrospective optimization approach is applied to assess economic and environmental benefits that would have been achieved through appropriate long-term planning. MESSAGE, a systems engineering optimization model, is used for this analysis. Two alternative scenarios are defined to explore the impact of supply- and demand-side strategies on the power generation mix, fuel consumption and CO2 emissions. The focus on the past choice of energy scenarios provides some insights for future scenario design. The results of the cost-optimal scenarios with international fuel prices are compared with the...
Optimal policy of energy innovation in developing countries: Development of solar PV in Iran
, Article Energy Policy ; Volume 37, Issue 3 , 2009 , Pages 1116-1127 ; 03014215 (ISSN) ; Saboohi, Y ; Ghofrani, M.B ; Sharif University of Technology
2009
Abstract
The purpose of this study is to apply managerial economics and methods of decision analysis to study the optimal pattern of innovation activities for development of new energy technologies in developing countries. For this purpose, a model of energy research and development (R&D) planning is developed and it is then linked to a bottom-up energy-systems model. The set of interlinked models provide a comprehensive analytical tool for assessment of energy technologies and innovation planning taking into account the specific conditions of developing countries. An energy-system model is used as a tool for the assessment and prioritization of new energy technologies. Based on the results of the...
Lithium ion Battery Technology Development Policy Making on Iranʼs Oncoming Energy System Based on the Technological Innovation System Approach
, M.Sc. Thesis Sharif University of Technology ; Maleki, Abbas (Supervisor)
Abstract
Lithium ion battery is one of the innovative and emerging technologies in energy sector that has played a major role in electricity supply security by integration of renewable energy technologies in electrical grid, implementation of electrical transportation system and de-carbonation of the both sectors in recent years. On the other hand, the formation of the potential market of technology as one of the functions of the technological innovation system plays an essential role in creation and advancement of innovation in the energy sector. Therefore, in this thesis, the development of lithium ion battery technology in Iran has been investigated from the perspective of the technology market in...
The influence of public R&D and knowledge spillovers on the development of renewable energy sources: The case of the Nordic countries
, Article Technological Forecasting and Social Change ; Volume 146 , 2019 , Pages 450-463 ; 00401625 (ISSN) ; Saboohi, Y ; Arasti, M ; Sharif University of Technology
Elsevier Inc
2019
Abstract
Energy innovation is a key requirement to limit global warming and tackle climate change in the years to come. A better understanding of the public R&D mechanism is likely to improve allocation of resources for energy innovation. Thus, the present paper evaluates the impacts of public R&D and knowledge spillovers on the development of renewable energy sources. To achieve this goal, knowledge flow has been modeled as a function of public R&D expenditures, cumulative knowledge stocks and knowledge spillovers. To show the application of the model, the Nordic countries as one of the pioneers in renewable technologies have been chosen. Results show the cumulative knowledge stock will increase to...
Harmful algal blooms (red tide): a review of causes, impacts and approaches to monitoring and prediction
, Article International Journal of Environmental Science and Technology ; Volume 16, Issue 3 , 2019 , Pages 1789-1806 ; 17351472 (ISSN) ; Abbaspour, M ; Sharif University of Technology
Center for Environmental and Energy Research and Studies
2019
Abstract
Red tide, an impermanent natural phenomenon including harmful algal blooms, causes changing the color of the sea generally to red or almost brown, and has a serious impact on environment along the coast and aquatic ecosystem. Due to recent extensive steady harmful algal blooms events that cause adverse impacts on human healthsome, aquaculture and tourism industry, and the entire economy of the coastal region, the need of society for realizing these phenomena is much greater than the past. In the recent decades, consideration of algal blooms and determination of bloom-former species and fundamental researches about dynamics of blooms are increased worldwide. Development in technology has...
Optimization of multiple transmission layouts for minimal energy consumption of a battery electric vehicle
, Article Scientia Iranica ; Volume 26, Issue 4A , 2019 , Pages 2382-2393 ; 10263098 (ISSN) ; Foumani, M. S ; Delkhosh, M ; Sharif University of Technology
Sharif University of Technology
2019
Abstract
Battery Electric Vehicles (BEVs) are a promising solution for reducing the impacts of passenger vehicles on the environment. However, their driving range is restricted due to the limitations of battery technologies. This range can be extended by adoption of multiple-speed transmissions. Most of the comparisons in the related studies are based on non-optimal designs or limited to modal driving cycles. Furthermore, the impact of Power-Split. Continuously Variable Transmission (PS-CVT) layout with type III power How on the power consumption of BEVs has never been examined. In this paper, single-, two-, and three-speed transmissions along with PS-C'VTs with type I and III power flows are...
Configuration design of scalable reconfigurable manufacturing systems for part family
, Article International Journal of Production Research ; 2019 ; 00207543 (ISSN) ; Houshmand, M ; Saitou, K ; Fatahi Valilai, O ; Sharif University of Technology
Taylor and Francis Ltd
2019
Abstract
Intense global competition, dynamic product variations, and rapid technological developments force manufacturing systems to adapt and respond quickly to various changes in the market. Such responsiveness could be achieved through new paradigms such as Reconfigurable manufacturing systems (RMS). In this paper, the problem of configuration design for a scalable reconfigurable RMS that produces different products of a part family is addressed. In order to handle demand fluctuations of products throughout their lifecycles with minimum cost, RMS configurations must change as well. Two different approaches are developed for addressing the system configuration design in different periods. Both...
Configuration design of scalable reconfigurable manufacturing systems for part family
, Article International Journal of Production Research ; 2019 ; 00207543 (ISSN) ; Houshmand, M ; Saitou, K ; Fatahi Valilai, O ; Sharif University of Technology
Taylor and Francis Ltd
2019
Abstract
Intense global competition, dynamic product variations, and rapid technological developments force manufacturing systems to adapt and respond quickly to various changes in the market. Such responsiveness could be achieved through new paradigms such as Reconfigurable manufacturing systems (RMS). In this paper, the problem of configuration design for a scalable reconfigurable RMS that produces different products of a part family is addressed. In order to handle demand fluctuations of products throughout their lifecycles with minimum cost, RMS configurations must change as well. Two different approaches are developed for addressing the system configuration design in different periods. Both...
Optimization of multiple transmission layouts for minimal energy consumption of a battery electric vehicle
, Article Scientia Iranica ; Volume 26, Issue 4A , 2019 , Pages 2382-2393 ; 10263098 (ISSN) ; Saadat Foumani , M ; Delkhosh, M ; Sharif University of Technology
Sharif University of Technology
2019
Abstract
Battery Electric Vehicles (BEVs) are a promising solution for reducing the impacts of passenger vehicles on the environment. However, their driving range is restricted due to the limitations of battery technologies. This range can be extended by adoption of multiple-speed transmissions. Most of the comparisons in the related studies are based on non-optimal designs or limited to modal driving cycles. Furthermore, the impact of Power-Split. Continuously Variable Transmission (PS-CVT) layout with type III power How on the power consumption of BEVs has never been examined. In this paper, single-, two-, and three-speed transmissions along with PS-C'VTs with type I and III power flows are...
Discovering associations among technologies using neural networks for tech-mining
, Article IEEE Transactions on Engineering Management ; 2020 ; Veisi, H ; Fateh rad, M ; Rahmani, R ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2020
Abstract
In both public and private sectors, critical technology-based tasks, such as innovation, forecasting, and road-mapping, are faced with unmanageable complexity due to the ever-expanding web of technologies which can range into thousands. This context cannot be easily handled manually or with efficient speed. However, more precise and insightful answers are expected. These answers are the fundamental challenge addressed by tech-mining. For tech-mining, discovering the associations among them is a critical task. These associations are used to form a weighted directed graph of technologies called “association tech-graph” which is used for technology development, trend analysis, policymaking,...
Configuration design of scalable reconfigurable manufacturing systems for part family
, Article International Journal of Production Research ; Volume 58, Issue 10 , 2020 , Pages 2974-2996 ; Houshmand, M ; Saitou, K ; Fatahi Valilai, O ; Sharif University of Technology
Taylor and Francis Ltd
2020
Abstract
Intense global competition, dynamic product variations, and rapid technological developments force manufacturing systems to adapt and respond quickly to various changes in the market. Such responsiveness could be achieved through new paradigms such as Reconfigurable manufacturing systems (RMS). In this paper, the problem of configuration design for a scalable reconfigurable RMS that produces different products of a part family is addressed. In order to handle demand fluctuations of products throughout their lifecycles with minimum cost, RMS configurations must change as well. Two different approaches are developed for addressing the system configuration design in different periods. Both...
Muslim scholars and technological volition
, Article Technology in Society ; Volume 61 , 2020 ; Taqavi, M ; Sharif University of Technology
Elsevier Ltd
2020
Abstract
What purpose, according to Muslim scholars, should technological development serve? To answer this question, first we explain the views of seven Muslim scholars who have theorized about technology from an Islamic viewpoint. We then set out Carl Mitcham's fourfold analysis of technology, and summarize the views of philosophers of technology on technological volition. This places us in a position to classify Muslim scholars' opinions on technological development under seven broad headings, namely: meeting human beings' needs, implementation of an Islamic culture and lifestyle, serving human beings, serving nature, understanding the splendor of creation, providing personal and social happiness,...
Inkjet-printing technology for supercapacitor application: Current state and perspectives
, Article ACS Applied Materials and Interfaces ; Volume 12, Issue 31 , 2020 , Pages 34487-34504 ; Rahmanian, E ; Naseri, N ; Sharif University of Technology
American Chemical Society
2020
Abstract
Inkjet-printing (IJP) technology is recognized as a significant breakthrough in manufacturing high-performance electrochemical energy storage systems. In comparison to conventional fabrication protocols, this printing technique offers various advantages, such as contact-less high-resolution patterning capability; low-cost, controlled material deposition; process simplicity; and compatibility with a variety of substrates. Due to these outstanding merits, significant research efforts have been devoted to utilizing IJP technology in developing electrochemical energy storage devices, particularly in supercapacitors (SCs). These attempts have focused on fabricating the key components of SCs,...