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    Using Information Beyond Text to Generate Language Embedding Vectors

    , M.Sc. Thesis Sharif University of Technology Zeinab Sadat Taghavi (Author) ; Sameti, Hossein (Supervisor)
    Abstract
    In this thesis, we introduce a novel Artificial Intelligence (AI) system inspired by the philosophical and psychoanalytical concept of imagination as a ``Re-construction of Experiences". Our AI system is equipped with an imagination-inspired module that bridges the gap between textual inputs and other modalities, enriching the derived information based on previously learned experiences. A unique feature of our system is its ability to formulate independent perceptions of inputs. This leads to unique interpretations of a concept that may differ from human interpretations but are equally valid, a phenomenon we term as ``Interpretable Misunderstanding". We employ large-scale models,... 

    Design and Fabrication of Microfluidic System as Concentration Gradient Generator

    , M.Sc. Thesis Sharif University of Technology Ziabakhsh, Zeinab Sadat (Author) ; Saadatmand, Maryam (Supervisor)
    Abstract
    According to today’s medicine progress, the need for improving the medical facilities have been increased. Within the human body, the biomolecules concentration gradient is regulating the cell functions. Biological processes such as immune response, wound healing, and cancer metastasis have been affected by the bimolecular concentration gradient. So understanding the cell behavior in the presence of a chemical gradient can improve the understanding from these biological processes, and also would help in medical researches. On the other hand, finding the appropriate dose of the drugs and in some cases finding the most effective drug is a clinical challenge that made a new field of research in... 

    Optical Injection Phase-Locked Loop Application in Continuous-variable Quantum Key Distributions

    , Ph.D. Dissertation Sharif University of Technology Khaksar, Zeinab Sadat (Author) ; Bahrampour, Alireza (Supervisor)
    Abstract
    The primary objective of this thesis is to provide solutions addressing some security loopholes in continuous variables quantum key distribution protocols. The coherent detection method is utilized in this particular quantum key distribution scheme, which is a phase-sensitive detection. To measure in the quantum noise limit in the detection part, we need a local optical oscillator, which must possess a high intensity and a consistent phase correlation with the quantum signal. Therefore, reconstructing the emitter’s reference phase in the receiver’s detection system is considered as one of the most critical challenges in these protocols. In order to attain this goal, in the early versions of... 

    Investigation of the Performance of Microbial Fuel Cell Based on Shewanella Bacteria with the Aim of Nanostructured Materials

    , M.Sc. Thesis Sharif University of Technology Davoudi, Omid (Author) ; Yaghmaei, Soheila (Supervisor) ; Sanaee, Zeinab (Co-Supervisor)
    Abstract
    The development of clean, renewable and alternative sources of fossil fuels has increased in recent years due to various factors such as environmental pollution, reduced fossil fuel resources and increased energy consumption. The application of microbial fuel cells is one of the clean energy production methods using renewable sources such as municipal sewage. The microbial fuel cell converts the chemical energy stored in organic materials into electrical energy and simultaneously purifies the sewage. Increasing current density and power density are the most important challenges for microbial fuel cells. In this study, the two biocatalysts of Shewanella Oneidensis MR1 and Escherichia coli... 

    Cluster-based adaptive SVM: a latent subdomains discovery method for domain adaptation problems

    , Article Computer Vision and Image Understanding ; Volume 162 , 2017 , Pages 116-134 ; 10773142 (ISSN) Sadat Mozafari, A ; Jamzad, M ; Sharif University of Technology
    2017
    Abstract
    Machine learning algorithms often suffer from good generalization in testing domains especially when the training (source) and test (target) domains do not have similar distributions. To address this problem, several domain adaptation techniques have been proposed to improve the performance of the learning algorithms when they face accuracy degradation caused by the domain shift problem. In this paper, we focus on the non-homogeneous distributed target domains and propose a new latent subdomain discovery model to divide the target domain into subdomains while adapting them. It is expected that applying adaptation on subdomains increase the rate of detection in comparing with the situation... 

    Solving the P-Center Problem under Uncertainty

    , M.Sc. Thesis Sharif University of Technology Taghavi, Majid (Author) ; Shavandi, Hassan (Supervisor)
    Abstract
    Facility location decisions play a prominent role in strategic planning of many firms, companies and governmental organizations. Since in many real-world facility location problems, the data are subject to uncertainty, in this thesis, we consider the P-center problem under uncertainty of demand nodes. Using Bertsimas and Sim approach, we modeled the problem as a linear optimization model. Furthermore, we develop a tabu search algorithm to solve the problem. Finally we designed some experiments to adjust the parameters of tabu search algorithm. We presented the numerical result accordingly  

    Feyerabend’s Point of View on Scientific Progress

    , M.Sc. Thesis Sharif University of Technology Yazdani, Homa (Author) ; Taghavi, Mostafa (Supervisor)
    Abstract
    Feyarabend’s philosophy of science is against method and rule such that he believes that “anything goes”. However, he sometimes applies the term “progress”. Reviewing his publications shows that from his point of view, progress is qualitative and relative. So, unlike other philosophers of science Feyarabend ignores the clarification of the concept; subsequently, his applications of the term “progress” are somewhat ambiguous. However, by studying his philosophy, one may realize what should be done to achieve progress in any sense. The affirmative aspect of Feyerabend’s philosophy, while highlights the social and ethical elements, considering his humanitarian outlook as well as his special... 

    The concept of Social Ethics and Its Relation to the Politics from Hobbes Point of View

    , M.Sc. Thesis Sharif University of Technology Karimi, Sasan (Author) ; Taghavi, Mostafa (Supervisor)
    Abstract
    In this thesis, I study the concept of social ethics from a modern point of view. What I call modernity, is the fundamental philosophical revolution happened in the sixteenth and seventeenth centuries in Europe, this period is called “Enlightenment”, what I assume is from Machiavelli to Kant. One of the most important philosophers belongs to this enlightenment period is Thomas Hobbes, a Scottish philosopher whose main book “Leviathan” is well-known as the basis of the modern politics. Modern politics makes sense against classical one, founded by Aristotle in a book mentioned under the same title. What Hobbes describes as society based on public interests etc. is in a different point of view... 

    On Feenberg’s Alternative Thinking About Virtual Space Technologies

    , M.Sc. Thesis Sharif University of Technology Rahimi, Morteza (Author) ; Taghavi, Mostafa (Supervisor)
    Abstract
    Cultural and social problems in the modern age have motivated many thinkers to analyze modernity. Some of them have tried to solve these problems and, if possible, prevent their occurrence in the future. Proposed solutions are mostly dystopian, i.e. by being disappointed, they think the only possible way to overcome these problems is to annihilate modern civilization, or they pursue a passive approach; i.e. they have accepted the problems of modernity but only seek a way to mitigate its challenges. Among these, solutions which try to make use of the capacities of the modern civilization, especially emerging technologies, are really scarce. These approaches seek to realize (and make... 

    Has "The Work and Technology Course" in the Elementary School and Guidance School Paid Enough Attention to Improve Technological Thinking?

    , M.Sc. Thesis Sharif University of Technology Nafari, Hossein (Author) ; Taghavi, Mostafa (Supervisor)
    Abstract
    It has been five years since the new education system was started, according to which fundamental changes have been applied to school text books. The mentioned changes in the text books are based on “the fundamental transformation document” and “Iran’s national educational curriculum”. In “Iran’s national educational curriculum”, eleven fields concerning pedagogy and learning are explicitly mentioned; one of these eleven fields is “training and learning work and technology”. One of the merits which has been stressed in this field, is “technological thinking”. Nowadays, methods of extending and reinforcing the technological thinking have come to be the subject of investigations in many... 

    APIS’ Evolution Comprehension Via Analyzing the Q&As in the Stack Overflow Website

    , M.Sc. Thesis Sharif University of Technology Taghavi, Samira (Author) ; Heydarnoori, Abbas (Supervisor)
    Abstract
    Client applications are often developed with the help of software frameworks in order to reduce the development costs and to increase the software quality. However, frameworks may evolve to add new features or to fix bugs, and thus, their APIs may change at the same time. Nevertheless, these API changes can cause the client applications to not work properly. New frameworks typically use the deprecation mechanism to reduce this effect, but their documents often do not provide sufficient information. Consequently, deprecated APIs usages remain unresolved in client applications. To tackle this issue, we introduce ARFES (Automated Recommender of Framework Evolution Solutions) that provides... 

    Religious Science: Comparison of Golshani's and Javadi Amoli's Views

    , M.Sc. Thesis Sharif University of Technology Fakheri, Marzieh (Author) ; Taghavi, Mostafa (Supervisor)
    Abstract
    Religious science, its nature, possibility, and the mechanism of achievement have come to the fore in recent years. In this thesis, Javadi Amoli’s and Golshani’s theories are compared in this respect. Javadi Amoli begins by situating the reason, and certain knowledge as its product, in the architecture of religious knowledge. Since this kind of knowledge unveils divine action, Amoli counts it as already divine in nature. Therefore, there would be no conflict between science and religion in principle, unless atheist scientists insist on drawing non-empirical conclusions from sciences. Other conflicts too are superficial and resolvable. Amoli sees the fault of current sciences, which should be... 

    Explaining the Concept of Civilization by using Theory of Constructive Perceptions with Emphasis on Knowledge and Technology as Components of Civilization

    , M.Sc. Thesis Sharif University of Technology Tahani, Ali (Author) ; Taghavi, Mostafa (Supervisor)
    Abstract
    The purpose of writing this thesis is to arrive at the concept of civilization. And in this process, using the constructive perception. My approach in constructive perception is different with approach of Allameh tabatabaei in constructive perception. In first chapter defining constructive perception as the perception that mind by analogy between two consepts makes the non-real relations and attributes it deliberated to the reality (the parties). Meanwhile, should have been constructive perception is the intermediary that stimulation our sense abut reality. These feelings can be tenderness or hatred or fear and hope and ... . In the second chapter we will show that the use of technology... 

    A memory efficient algorithm for multi-dimensional wavelet transform based on lifting

    , Article 2003 IEEE International Conference on Accoustics, Speech, and Signal Processing, Hong Kong, 6 April 2003 through 10 April 2003 ; Volume 6 , 2003 , Pages 401-404 ; 15206149 (ISSN) Taghavi, Z ; Kasaei, S ; Sharif University of Technology
    2003
    Abstract
    Conventional implementation of multi-dimensional wavelet transform (e.g. 3-D wavelet) requires whether a high amount of "in access" memory or a continual access to slow memory of a processor which makes it infeasible for most applications. In this paper, we proposed a novel algorithm for computation of an n-D discrete wavelet transform (DWT) based on lifting scheme. In addition to benefits of lifting scheme (which causes a major reduction in computational complexity and performs the total computations in time domain), our real-time approach computes the coefficients for all kinds of 1st and 2 nd generation wavelets with short delay and optimized utilization of the slow and fast memories of a... 

    Welding Metallurgy and Welding Feasibility of Low-Carbon Steel and Pure Copper in Resistance Spot Welding Process

    , M.Sc. Thesis Sharif University of Technology Taghavi, Sahand (Author) ; Pouranvari, Majid (Supervisor)
    Abstract
    With the expansion of industry, steel to copper joints applications in heat and electricity transmission equipment have increased. Steel has better mechanical properties and weldability and lower prices, and copper has better thermal and electrical conductivity properties; because of that, this dissimilar joint fits needs such as cost reduction and high efficiency. This study has parametrically investigated the feasibility of dissimilar welding of these metals using the resistance spot welding process.This study conducts three phases. In the first phase, low carbon steel and copper were directly welded, and it was found that the mechanical properties of the joint were affected by physical... 

    The Study of the Steric and Electronic Effects on n → π* Interactions in a Series of New Rhenium (I)Tricarbonyl Complexes

    , Ph.D. Dissertation Sharif University of Technology Taghavi, Tahereh (Author) ; Kia, Reza (Supervisor)
    Abstract
    In this research, synthesis, structural and theoretical studies of new rhenium (I) tricarbonyl complexes with general formula, [Re(CO)3(NN)X] in which NN´ is chelating bidentate diimine ligand and X = Perrhenate, NO2 and ONO ligands were studied. The synthesized complexes were characterized by 1H-NMR, FT-IR and ESI-mass spectroscopic methods and their solid state structures were determined by X-ray diffraction analysis. Crystal structure determination by single-crystal X-ray diffraction allows us to fully examine the intramolecular and intermolecular interactions. The energy of different n → π* interactions also was investigated. Since three carbonyl groups are present in these complexes, we... 

    The Effect of Travel Time Reliability on Morning Peak Travellers route choice in Large Metropolitan Area

    , M.Sc. Thesis Sharif University of Technology Sadat Mirjafari, Parisa (Author) ; Poorzahedy, Hossein (Supervisor)
    Abstract
    Data collected from street networks show that travel time in urban street networks is a stochastic variable, whose range of variation increases with the congestion level. Work and school trips comprise the major part of morning peak volumes, whose common characteristic is that they need to be made on time. For this reason, these travelers are pessimistic in their route choice, and try to choose routes which are more reliable. Travel time standard deviation is one of the common measures for estimating travel time reliability that is related to properties of day-to-day travel time distribution on a particular route. Based on the empirical data collected from Tehran street network, this paper... 

    Indoor Noise Pollution Modeling: A Case Study on Resalat Tunnel

    , M.Sc. Thesis Sharif University of Technology Sadat Mortazavi, Mandana (Author) ; Vaziri, Manouchehr (Supervisor)
    Abstract
    Noise or noise pollution, is defined as an unwanted sound, produced mostly by motor vehicles in urban areas. If the noise exceeds its limit, adverse effects on users and citizens are expected. Thus the assessment of the noise level and its comparison with allowable values is mandatory. Traffic induced noise depends upon different factors such as traffic, weather, and, sound barriers. Noise pollution study has a long history all over the world. Many studies, mostly representing the outdoor noise pollution models, have been done in recent years. This paper presents an assessment of traffic-induced noise in a heavily traveled tunnel, locally referred to as Resalat tunnel, which is located in... 

    Examination and Critique of Susan George’s Ideas Concerning the Relation of Religion and Technology

    , M.Sc. Thesis Sharif University of Technology Hajikazem, Hojjatollah (Author) ; Taghavi, Mostafa (Supervisor)
    Abstract
    This article investigate about Susan George’s ideas concerning the relation of religion and technology and examine her point of view. George, searches synergy between religion and technology and tries to develop basis of artificial intelligence by religion. She provide answers to some philosophical concerns about technology through religion and tries to prove that technological morality needs religion. We show that some of her Assumptions is not through her conclusions. George, notices to the help of technology to religion for providing a new expression. We examine her clams about relation between technology and Islam  

    Evaluation of efficiency in zinc recovery from waste materials

    , Article 2006 TMS Fall Extraction and Processing Division: Sohn International Symposium, San Diego, CA, 27 August 2006 through 31 August 2006 ; Volume 1 , 2006 , Pages 445-452 ; 0873396332 (ISBN); 9780873396332 (ISBN) Taghavi, S. M ; Halali, M ; Sharif University of Technology
    2006
    Abstract
    In this report, the efficacy of different factors such as temperature of reaction, time of reaction and depth of bed are investigated in a process of recovery of zinc oxide from zinc ore concentration residues in a fluidized bed furnace. Under optimum conditions, there was more than 93.5% zinc oxide in products