Search for: research-and-development
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    Design and implementation of a PC-based digital synchronous detection system for biological signal measurement

    , Article 2007 5th Student Conference on Research and Development, SCORED, Selangor, 11 December 2007 through 12 December 2007 ; 2007 ; 1424414709 (ISBN); 9781424414703 (ISBN) Gan, K. B ; Zahedi, E ; Mohd Ali, M. A ; Sharif University of Technology
    A PC-based digital lock-in amplifier was implemented completely in software (Labview) for photoplethysmograph (PPG) measurement. Experiments carried out to evaluate the performance of the amplifier show that the system can recover the signals up to 40 dB below the interference (ambient light). This system can be customized later to measure the trans-abdominal PPG signal of pregnant women for fetal heart rate detection. ©2007 IEEE  

    Medical robotics: State-of-the-art applications and research challenges

    , Article International Journal of Healthcare Information Systems and Informatics ; Volume 8, Issue 2 , 2013 , Pages 1-14 ; 15553396 (ISSN) Mirbagheri, A ; Baniasad, M. A ; Farahmand, F ; Behzadipour, S ; Ahmadian, A ; Sharif University of Technology
    Many research and development projects are being performed worldwide to develop new products and applications for computer-assisted and medical robotic systems. In this paper, an overview of selected state-of-the-art applications of robotic technology in medicine is presented. Four key areas of image-guided surgery, virtual reality in medicine, surgical robots, and robotic rehabilitation systems, are studied. As well, current challenges in research and development are discussed. Copyright  

    Sensor module for multi-channel wireless photoplethysmography system

    , Article 2007 5th Student Conference on Research and Development, SCORED, Selangor, 11 December 2007 through 12 December 2007 ; 2007 ; 1424414709 (ISBN); 9781424414703 (ISBN) Kadhim, A. Y ; Mohd Ali, M. A ; Zahedi, E ; Sharif University of Technology
    The digital sensor module is developed to sample the input signal fed from a photo-sensor probe at sampling times ranging from 400-4000 μs equivalent to sampling rates of 2500-250 sample/second (S/s), respectively. The module produces 16-bit data packets which are transmitted serially and plotted to output the photoplethysmography signal (PPG). It displays accurate sampling values (packets) similar to the calculated ones. ©2007 IEEE  

    Trend of laser research developments in global level

    , Article Optics and Laser Technology ; Volume 38, Issue 2 , 2006 , Pages 122-131 ; 00303992 (ISSN) Golnabi, H ; Mahdieh, M. H ; Sharif University of Technology
    An up-to-date progress of the international laser research and development is given in this article. The number of scientific publications and filed patents are considered as a figure of merit and based on these numbers the growth pace and important aspects are investigated. We have used the Science Finder Scholar search engine, which indexes more than 4000 journals, in different languages, and represents most significant published materials in laser science and engineering. The growth of the laser and related fields are described in terms of resulting scientific publications for the period of 1990-2003. The share of top nations in scientific publications, and in particular laser... 

    A comprehensive survey of proton beam therapy research and development in Iran

    , Article Frontiers in Biomedical Technologies ; Volume 8, Issue 1 , 2021 , Pages 9-19 ; 23455829 (ISSN) Piruzan, E ; Vosoughi, N ; Mahani, H ; Sharif University of Technology
    Tehran University of Medical Sciences  2021
    Purpose: Proton Beam Therapy (PBT) is an emerging radiotherapy technique using beams of proton to treat cancer. As the first report addressing the topic, the principal aim is to highlight the present status of PBT research and development in Iran as a developing country. Materials and Methods: To do so, the demand for PBT in Iran and Iran National Ion Therapy Center (IRNitc) was investigated and introduced. Then, Scopus and PubMed were searched for studies that dealt with PBT research in Iran and subsequently 6 major subfields of interest were identified. Furthermore, international collaborations were extracted from the bibliographic data. To combine both research and development sides, a... 

    Developing A Qualitative Model For Evaluation Of Effectiveness Of R&D Projects

    , M.Sc. Thesis Sharif University of Technology Mirzaie, Ali (Author) ; Kermavshah, Ali (Supervisor)
    Globalization and high rate development in all categories of scientific fields have become a very substantial motive to make effort in R&D affairs all over the world. Therefore, the high volume of investment in this area and Also the importance and urgency of R&D according to economical development statistics and its mutual and close relation with it specially in context of Iran, it is necessary to establish an effective tool to recognize gaps and bugs of subsystems working in the area using high volume investment so as to improve the position of each section of the total body of industry in this regard.


    Model for Planning Flow of Knowledge to Optimize Energy and the Environment

    , M.Sc. Thesis Sharif University of Technology Motamedinezhad, Mohammad Reza (Author) ; Saboohi, Yadollah (Supervisor)
    The purpose of this study is to investigate and analyse the technological transition of a new clean energy technology in the market. The agent-based modeling is used in national innovation chain to describe knowledge spillover between main actors in innovation procedure in order to attain renewable energy technology (RET) from basic research to commercial stage. Government’s expenditure on training human resource and R&D activities is modeled as a tool to analyse the development of innovation chain in order to increase diffusion rate of the new technology. Application of the knowledge flow model is demonstrated through analysis of introduction of solar PV in the energy system of Iran and... 

    The Comparative Study of Nanotechnology Research and Development in The World Selected Countries

    , M.Sc. Thesis Sharif University of Technology Yassaei, Shahla (Author) ; Ghasemi, Farhad (Supervisor)
    Nanotechnology requires a number of infrastructures for reaching its sustainable development. For each step of its development , various infrastructures should be studied and prepared in advance.In this direction, by introducing and recognizing the priority of Iran Nanotechnology R&D indexes ,the present research is going to propose an effective help. In this case, after studying the related literature and gathering the needed data , 27 indexes were recognized. Then , the indexes were divided in 7 criteria.In order to find the priority of the applied indexes , Fuzzy Multiple Criteria Decision Making (FMCDM) was applied. As the weighting of 7 criteria had been found by FANP , the... 

    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) Hooshangi, S ; Arasti, M. R ; Hounshell, D. A ; Sahebzamani, S ; Sharif University of Technology
    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... 

    Thirty-nine years of Iran's scientific products in the field of Geophysics

    , Article Journal of the Earth and Space Physics ; Volume 41, Issue 1 , 2015 , Pages 145-164 ; 03781046 (ISSN) Asadi, M ; Ghaderi Sohi, A ; Sharif University of Technology
    Institute of Geophysics  2015
    Identifying and measuring the impact and value of scientific output plays an important role in today's world of information overload. On one side, governments are trying to distribute research funds in ways that support research in strategically important fields, on the other side, researchers and scientists are seeking to access only relevant and quality information that have mainly worthy of their attention. Nowadays, countries are evaluated not only by their national products, military power, geographical area, etc., but also by such factors as the production and consumption of scientific information. Scientometric approaches are used to provide appropriate tools for evaluating scientific... 

    The dynamics of university-industry-government relationships in Nanoscience: investigating the Triple-Helix differences between Iran and Switzerland

    , Article Technology Analysis and Strategic Management ; Volume 31, Issue 7 , 2019 , Pages 817-832 ; 09537325 (ISSN) Souzanchi Kashani, E ; Zarghami, H. R ; Sharif University of Technology
    Routledge  2019
    This study aims to find the differences between national and international relationships in Iran and Switzerland’s Nanoscience research between 2008–2015. The results show significant differences some of which are attributed to the general dichotomy of developed-developing countries like stronger University-Industry-Government relations in Switzerland; but others are not, especially those pertaining to bilateral relations. In summary, the Government-Industry relations in Switzerland are generally closer in this field because the emerging characteristics of Nanoscience call for more state intervention, even in the context of developed countries. Greater Government-University relations in Iran... 

    Model for R&D planning in energy sector

    , Article IEMC 2005: 2005 IEEE International Engineering Management Conference, St. John's, Newfoundland, 11 September 2005 through 13 September 2005 ; Volume II , 2005 , Pages 663-667 ; 078039139X (ISBN); 9780780391390 (ISBN) Shafiei, E ; Saboohi, Y ; Ghofrani, M. B ; Sharif University of Technology
    Optimal allocation of resources for R&D on new energy technologies is an important issue in the process of development of energy system models. In this study, a model of R&D planning in energy sector has been developed and it is then linked to the energy system model. Energy system model is used as a tool for the technology assessment and prioritization of new energy technologies is evaluated with the help of this model. Based on the economic and environmental impact of new technologies, the optimal allocation of resources for R&D of new technology is estimated with the help of the R&D planning model. The conceptual formulation of the model and its integration with the energy technology... 

    Lamination methods for the fabrication of perovskite and organic photovoltaics

    , Article Materials Horizons ; Volume 9, Issue 10 , 2022 , Pages 2473-2495 ; 20516347 (ISSN) Ghaffari, A ; Saki, Z ; Taghavinia, N ; Malekshahi Byranvand, M ; Saliba, M ; Sharif University of Technology
    Royal Society of Chemistry  2022
    Perovskite solar cells (PSCs) have shown rapid progress in a decade of extensive research and development, aiming now towards commercialization. However, the development of more facile, reliable, and reproducible manufacturing techniques will be essential for industrial production. Many lamination methods have been initially designed for organic photovoltaics (OPVs), which are conceptually similar to PSCs. Lamination could provide a low-cost and adaptable technique for the roll-to-roll production of solar cells. This review presents an overview of lamination methods for the fabrication of PSCs and OPVs. The lamination of different electrodes consisting of various materials such as metal back... 

    A practical approach to R&D portfolio selection using the fuzzy pay-off method

    , Article IEEE Transactions on Fuzzy Systems ; Volume 20, Issue 4 , 2012 , Pages 615-622 ; 10636706 (ISSN) Hassanzadeh, F ; Collan, M ; Modarres, M ; Sharif University of Technology
    IEEE  2012
    The objective of this research is to develop a practical research and development (R&D) portfolio selection model that addresses the effective R&D project valuation issue, while tackling R&D uncertainty in portfolio optimization. Fuzzy set theory is employed to capture and model the uncertain project information. To evade the well-known complexities of fuzzy real option valuation, the recently developed fuzzy pay-off method is used to more effectively valuate R&D projects. The resulting problem is formulated as a fuzzy zero-one integer programming model that handles uncertainty of input data in order to determine the optimal portfolio. Two satisfaction measures, which are based on... 

    Impact of innovation programs on development of energy system: case of Iranian electricity-supply system

    , Article Energy Policy ; Volume 37, Issue 6 , 2009 , Pages 2221-2230 ; 03014215 (ISSN) Shafiei, E ; Saboohi, Y ; Ghofrani, M. B ; Sharif University of Technology
    The paper presents further experiments with an extended version of a comprehensive model for assessment of energy technologies and research and development (R&D) planning to evaluate the impact of innovation programs on development of Iranian electricity-supply system. This analytical instrument is a model of energy R&D resource allocation with an explicit perspective of developing countries which has been linked to a bottom-up energy-systems model. Three emerging electricity generation technologies of solar PV, wind turbine and gas fuel cell are considered in the model and the impact of innovation programs on cost-reducing innovation for them is examined. The main results provided by the... 

    Development of Model for Evaluation of Energy Technologies and R&D Planning

    , Ph.D. Dissertation Sharif University of Technology Shafiei, Ehsanoddin (Author) ; Ghofrani, Mohammad Bagher (Supervisor) ; Saboohi, Yadollah (Supervisor)
    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... 

    An Investigation of Uncertainty’s Welfare Effects in Economy

    , M.Sc. Thesis Sharif University of Technology Setayesh Valipour, Abolfazl (Author) ; Madanizadeh, Ali (Supervisor)
    We consider the impact of long-run uncertainty on relative GDP per Capita of an economy and show this effect is negative and significant. We show one standard deviation increase in uncertainty, decreases the economy’s GDP per Capita by 1.3%.In other words uncertainty affects the development of economies in addition to their growth rate. We show the significance of this effect in presence of human capital and physical capital. We consider the impact of uncertainty on relative productivity and show its significant negative impact. We consider the uncertainty impact on GDP per Capita’s time trend and show the effect diminishes over time.Additionally, we investigate the important channels of... 

    Research and Development Project Portfolio Selection

    , Ph.D. Dissertation Sharif University of Technology Hassanzadeh, Farhad (Author) ; Modarres Yazdi, Mohammad (Supervisor)
    Today, Research and Development (R&D) plays an underlying role in all technology-based companies. It is the R&D that creates competitive advantage and determines survival or growth of a company in the fierce market place. R&D, On the other hand, consumes invaluable resources such as capital, human resource, and laboratories which are generally very scarce. This implies that R&D decisions must be treated as huge investment decisions which are made within the strategic framework of a business. The purpose of R&D portfolio selection is to select a set of projects from a pool of candidate projects in order to maximize some financial measures subject to resource availability and technical... 

    Investigating and Analyzing the Use of Renewable Energies to Reduce Environmental Pollution with an Emphasis on the Automotive Industry

    , M.Sc. Thesis Sharif University of Technology Gomari, Negin (Author) ; Mostafavi, Mostafa (Supervisor)
    Today, different cities in the world have hurried to consumers, natural resources, and producers of waste. Our cities are not excluded from this rule, especially metropolitan like Tehran, which accounted for only 12% of the country's land area, accounting for 15% of the volume of airborne contamination in the country. Considering the importance of the environmental pollution issue and the many researches done in this field, the present study attempts to investigate and analyze the application of renewable energy to reduce environmental pollution with an emphasis on the automotive industry. This is an applied research in terms of purpose. These types of researches are applicable because these... 

    Firm relocation as a potential solution for environment improvement using a SWOT-AHP hybrid method

    , Article Process Safety and Environmental Protection ; Vol. 92, issue. 3 , May , 2014 , pp. 269-276 ; ISSN: 09575820 Eslamipoor, R ; Sepehriar, A ; Sharif University of Technology
    Global economic expansion and increasing concentration of people in the large cities, especially in developing countries leads to some environmental issues such as air pollution. Relocation of the firms as a great air pollutant can be an appropriate alternative for diminishing these pollutions. Yet, there is a lack of research about factors precluding firm relocation with respect to decision making factors when determining whether or not to relocate. Thus, the purpose of this case study is to examine firm relocation decision-making factors and to apprehend the role of environment issues in making them using a combination of SWOT matrix and Analytic Hierarchy Process (AHP). The combination...